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bgfx/src/renderer_gl.cpp

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/*
* Copyright 2011-2019 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
*/
#include "bgfx_p.h"
#if (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
# include "renderer_gl.h"
# include <bx/timer.h>
# include <bx/uint32_t.h>
namespace bgfx { namespace gl
{
static char s_viewName[BGFX_CONFIG_MAX_VIEWS][BGFX_CONFIG_MAX_VIEW_NAME];
inline void setViewType(ViewId _view, const bx::StringView _str)
{
if (BX_ENABLED(BGFX_CONFIG_DEBUG_ANNOTATION || BGFX_CONFIG_PROFILER) )
{
bx::memCopy(&s_viewName[_view][3], _str.getPtr(), _str.getLength() );
}
}
struct PrimInfo
{
GLenum m_type;
uint32_t m_min;
uint32_t m_div;
uint32_t m_sub;
};
static const PrimInfo s_primInfo[] =
{
{ GL_TRIANGLES, 3, 3, 0 },
{ GL_TRIANGLE_STRIP, 3, 1, 2 },
{ GL_LINES, 2, 2, 0 },
{ GL_LINE_STRIP, 2, 1, 1 },
{ GL_POINTS, 1, 1, 0 },
{ GL_ZERO, 0, 0, 0 },
};
BX_STATIC_ASSERT(Topology::Count == BX_COUNTOF(s_primInfo)-1);
static const char* s_attribName[] =
{
"a_position",
"a_normal",
"a_tangent",
"a_bitangent",
"a_color0",
"a_color1",
"a_color2",
"a_color3",
"a_indices",
"a_weight",
"a_texcoord0",
"a_texcoord1",
"a_texcoord2",
"a_texcoord3",
"a_texcoord4",
"a_texcoord5",
"a_texcoord6",
"a_texcoord7",
};
BX_STATIC_ASSERT(Attrib::Count == BX_COUNTOF(s_attribName) );
static const char* s_instanceDataName[] =
{
"i_data0",
"i_data1",
"i_data2",
"i_data3",
"i_data4",
};
BX_STATIC_ASSERT(BGFX_CONFIG_MAX_INSTANCE_DATA_COUNT == BX_COUNTOF(s_instanceDataName) );
static const GLenum s_access[] =
{
GL_READ_ONLY,
GL_WRITE_ONLY,
GL_READ_WRITE,
};
BX_STATIC_ASSERT(Access::Count == BX_COUNTOF(s_access) );
static const GLenum s_attribType[] =
{
GL_UNSIGNED_BYTE, // Uint8
GL_UNSIGNED_INT_10_10_10_2, // Uint10
GL_SHORT, // Int16
GL_HALF_FLOAT, // Half
GL_FLOAT, // Float
};
BX_STATIC_ASSERT(AttribType::Count == BX_COUNTOF(s_attribType) );
struct Blend
{
GLenum m_src;
GLenum m_dst;
bool m_factor;
};
static const Blend s_blendFactor[] =
{
{ 0, 0, false }, // ignored
{ GL_ZERO, GL_ZERO, false }, // ZERO
{ GL_ONE, GL_ONE, false }, // ONE
{ GL_SRC_COLOR, GL_SRC_COLOR, false }, // SRC_COLOR
{ GL_ONE_MINUS_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR, false }, // INV_SRC_COLOR
{ GL_SRC_ALPHA, GL_SRC_ALPHA, false }, // SRC_ALPHA
{ GL_ONE_MINUS_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, false }, // INV_SRC_ALPHA
{ GL_DST_ALPHA, GL_DST_ALPHA, false }, // DST_ALPHA
{ GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA, false }, // INV_DST_ALPHA
{ GL_DST_COLOR, GL_DST_COLOR, false }, // DST_COLOR
{ GL_ONE_MINUS_DST_COLOR, GL_ONE_MINUS_DST_COLOR, false }, // INV_DST_COLOR
{ GL_SRC_ALPHA_SATURATE, GL_ONE, false }, // SRC_ALPHA_SAT
{ GL_CONSTANT_COLOR, GL_CONSTANT_COLOR, true }, // FACTOR
{ GL_ONE_MINUS_CONSTANT_COLOR, GL_ONE_MINUS_CONSTANT_COLOR, true }, // INV_FACTOR
};
static const GLenum s_blendEquation[] =
{
GL_FUNC_ADD,
GL_FUNC_SUBTRACT,
GL_FUNC_REVERSE_SUBTRACT,
GL_MIN,
GL_MAX,
};
static const GLenum s_cmpFunc[] =
{
0, // ignored
GL_LESS,
GL_LEQUAL,
GL_EQUAL,
GL_GEQUAL,
GL_GREATER,
GL_NOTEQUAL,
GL_NEVER,
GL_ALWAYS,
};
static const GLenum s_stencilOp[] =
{
GL_ZERO,
GL_KEEP,
GL_REPLACE,
GL_INCR_WRAP,
GL_INCR,
GL_DECR_WRAP,
GL_DECR,
GL_INVERT,
};
static const GLenum s_stencilFace[] =
{
GL_FRONT_AND_BACK,
GL_FRONT,
GL_BACK,
};
static GLenum s_textureAddress[] =
{
GL_REPEAT,
GL_MIRRORED_REPEAT,
GL_CLAMP_TO_EDGE,
GL_CLAMP_TO_BORDER,
};
static const GLenum s_textureFilterMag[] =
{
GL_LINEAR,
GL_NEAREST,
GL_LINEAR,
};
static const GLenum s_textureFilterMin[][3] =
{
{ GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_NEAREST },
{ GL_NEAREST, GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST_MIPMAP_NEAREST },
{ GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR_MIPMAP_NEAREST },
};
struct TextureFormatInfo
{
GLenum m_internalFmt;
GLenum m_internalFmtSrgb;
GLenum m_fmt;
GLenum m_type;
bool m_supported;
};
static TextureFormatInfo s_textureFormat[] =
{
{ GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, GL_ZERO, false }, // BC1
{ GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_ZERO, false }, // BC2
{ GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_ZERO, false }, // BC3
{ GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_ZERO, false }, // BC4
{ GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_ZERO, false }, // BC5
{ GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_ZERO, GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_ZERO, false }, // BC6H
{ GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_ZERO, GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_ZERO, false }, // BC7
{ GL_ETC1_RGB8_OES, GL_ZERO, GL_ETC1_RGB8_OES, GL_ZERO, false }, // ETC1
{ GL_COMPRESSED_RGB8_ETC2, GL_ZERO, GL_COMPRESSED_RGB8_ETC2, GL_ZERO, false }, // ETC2
{ GL_COMPRESSED_RGBA8_ETC2_EAC, GL_COMPRESSED_SRGB8_ETC2, GL_COMPRESSED_RGBA8_ETC2_EAC, GL_ZERO, false }, // ETC2A
{ GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2, GL_ZERO, false }, // ETC2A1
{ GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_COMPRESSED_SRGB_PVRTC_2BPPV1_EXT, GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG, GL_ZERO, false }, // PTC12
{ GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_COMPRESSED_SRGB_PVRTC_4BPPV1_EXT, GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG, GL_ZERO, false }, // PTC14
{ GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_COMPRESSED_SRGB_ALPHA_PVRTC_2BPPV1_EXT, GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG, GL_ZERO, false }, // PTC12A
{ GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_COMPRESSED_SRGB_ALPHA_PVRTC_4BPPV1_EXT, GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG, GL_ZERO, false }, // PTC14A
{ GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_ZERO, GL_COMPRESSED_RGBA_PVRTC_2BPPV2_IMG, GL_ZERO, false }, // PTC22
{ GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_ZERO, GL_COMPRESSED_RGBA_PVRTC_4BPPV2_IMG, GL_ZERO, false }, // PTC24
{ GL_ATC_RGB_AMD, GL_ZERO, GL_ATC_RGB_AMD, GL_ZERO, false }, // ATC
{ GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ZERO, GL_ATC_RGBA_EXPLICIT_ALPHA_AMD, GL_ZERO, false }, // ATCE
{ GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ZERO, GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD, GL_ZERO, false }, // ATCI
{ GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_COMPRESSED_SRGB8_ASTC_4x4_KHR, GL_COMPRESSED_RGBA_ASTC_4x4_KHR, GL_ZERO, false }, // ASTC4x4
{ GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_COMPRESSED_SRGB8_ASTC_5x5_KHR, GL_COMPRESSED_RGBA_ASTC_5x5_KHR, GL_ZERO, false }, // ASTC5x5
{ GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_COMPRESSED_SRGB8_ASTC_6x6_KHR, GL_COMPRESSED_RGBA_ASTC_6x6_KHR, GL_ZERO, false }, // ASTC6x6
{ GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_COMPRESSED_SRGB8_ASTC_8x5_KHR, GL_COMPRESSED_RGBA_ASTC_8x5_KHR, GL_ZERO, false }, // ASTC8x5
{ GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_COMPRESSED_SRGB8_ASTC_8x6_KHR, GL_COMPRESSED_RGBA_ASTC_8x6_KHR, GL_ZERO, false }, // ASTC8x6
{ GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_COMPRESSED_SRGB8_ASTC_10x5_KHR, GL_COMPRESSED_RGBA_ASTC_10x5_KHR, GL_ZERO, false }, // ASTC10x5
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false }, // Unknown
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false }, // R1
{ GL_ALPHA, GL_ZERO, GL_ALPHA, GL_UNSIGNED_BYTE, false }, // A8
{ GL_R8, GL_ZERO, GL_RED, GL_UNSIGNED_BYTE, false }, // R8
{ GL_R8I, GL_ZERO, GL_RED, GL_BYTE, false }, // R8I
{ GL_R8UI, GL_ZERO, GL_RED, GL_UNSIGNED_BYTE, false }, // R8U
{ GL_R8_SNORM, GL_ZERO, GL_RED, GL_BYTE, false }, // R8S
{ GL_R16, GL_ZERO, GL_RED, GL_UNSIGNED_SHORT, false }, // R16
{ GL_R16I, GL_ZERO, GL_RED, GL_SHORT, false }, // R16I
{ GL_R16UI, GL_ZERO, GL_RED, GL_UNSIGNED_SHORT, false }, // R16U
{ GL_R16F, GL_ZERO, GL_RED, GL_HALF_FLOAT, false }, // R16F
{ GL_R16_SNORM, GL_ZERO, GL_RED, GL_SHORT, false }, // R16S
{ GL_R32I, GL_ZERO, GL_RED, GL_INT, false }, // R32I
{ GL_R32UI, GL_ZERO, GL_RED, GL_UNSIGNED_INT, false }, // R32U
{ GL_R32F, GL_ZERO, GL_RED, GL_FLOAT, false }, // R32F
{ GL_RG8, GL_ZERO, GL_RG, GL_UNSIGNED_BYTE, false }, // RG8
{ GL_RG8I, GL_ZERO, GL_RG, GL_BYTE, false }, // RG8I
{ GL_RG8UI, GL_ZERO, GL_RG, GL_UNSIGNED_BYTE, false }, // RG8U
{ GL_RG8_SNORM, GL_ZERO, GL_RG, GL_BYTE, false }, // RG8S
{ GL_RG16, GL_ZERO, GL_RG, GL_UNSIGNED_SHORT, false }, // RG16
{ GL_RG16I, GL_ZERO, GL_RG, GL_SHORT, false }, // RG16I
{ GL_RG16UI, GL_ZERO, GL_RG, GL_UNSIGNED_SHORT, false }, // RG16U
{ GL_RG16F, GL_ZERO, GL_RG, GL_FLOAT, false }, // RG16F
{ GL_RG16_SNORM, GL_ZERO, GL_RG, GL_SHORT, false }, // RG16S
{ GL_RG32I, GL_ZERO, GL_RG, GL_INT, false }, // RG32I
{ GL_RG32UI, GL_ZERO, GL_RG, GL_UNSIGNED_INT, false }, // RG32U
{ GL_RG32F, GL_ZERO, GL_RG, GL_FLOAT, false }, // RG32F
{ GL_RGB8, GL_SRGB8, GL_RGB, GL_UNSIGNED_BYTE, false }, // RGB8
{ GL_RGB8I, GL_ZERO, GL_RGB, GL_BYTE, false }, // RGB8I
{ GL_RGB8UI, GL_ZERO, GL_RGB, GL_UNSIGNED_BYTE, false }, // RGB8U
{ GL_RGB8_SNORM, GL_ZERO, GL_RGB, GL_BYTE, false }, // RGB8S
{ GL_RGB9_E5, GL_ZERO, GL_RGB, GL_UNSIGNED_INT_5_9_9_9_REV, false }, // RGB9E5F
{ GL_RGBA8, GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE, false }, // BGRA8
{ GL_RGBA8, GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE, false }, // RGBA8
{ GL_RGBA8I, GL_ZERO, GL_RGBA, GL_BYTE, false }, // RGBA8I
{ GL_RGBA8UI, GL_ZERO, GL_RGBA, GL_UNSIGNED_BYTE, false }, // RGBA8U
{ GL_RGBA8_SNORM, GL_ZERO, GL_RGBA, GL_BYTE, false }, // RGBA8S
{ GL_RGBA16, GL_ZERO, GL_RGBA, GL_UNSIGNED_SHORT, false }, // RGBA16
{ GL_RGBA16I, GL_ZERO, GL_RGBA, GL_SHORT, false }, // RGBA16I
{ GL_RGBA16UI, GL_ZERO, GL_RGBA, GL_UNSIGNED_SHORT, false }, // RGBA16U
{ GL_RGBA16F, GL_ZERO, GL_RGBA, GL_HALF_FLOAT, false }, // RGBA16F
{ GL_RGBA16_SNORM, GL_ZERO, GL_RGBA, GL_SHORT, false }, // RGBA16S
{ GL_RGBA32I, GL_ZERO, GL_RGBA, GL_INT, false }, // RGBA32I
{ GL_RGBA32UI, GL_ZERO, GL_RGBA, GL_UNSIGNED_INT, false }, // RGBA32U
{ GL_RGBA32F, GL_ZERO, GL_RGBA, GL_FLOAT, false }, // RGBA32F
{ GL_RGB565, GL_ZERO, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, false }, // R5G6B5
{ GL_RGBA4, GL_ZERO, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV, false }, // RGBA4
{ GL_RGB5_A1, GL_ZERO, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV, false }, // RGB5A1
{ GL_RGB10_A2, GL_ZERO, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, false }, // RGB10A2
{ GL_R11F_G11F_B10F, GL_ZERO, GL_RGB, GL_UNSIGNED_INT_10F_11F_11F_REV, false }, // RG11B10F
{ GL_ZERO, GL_ZERO, GL_ZERO, GL_ZERO, false }, // UnknownDepth
{ GL_DEPTH_COMPONENT16, GL_ZERO, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT, false }, // D16
{ GL_DEPTH_COMPONENT24, GL_ZERO, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, false }, // D24
{ GL_DEPTH24_STENCIL8, GL_ZERO, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, false }, // D24S8
{ GL_DEPTH_COMPONENT32, GL_ZERO, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, false }, // D32
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_FLOAT, false }, // D16F
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_FLOAT, false }, // D24F
{ GL_DEPTH_COMPONENT32F, GL_ZERO, GL_DEPTH_COMPONENT, GL_FLOAT, false }, // D32F
{ GL_STENCIL_INDEX8, GL_ZERO, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, false }, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_textureFormat) );
static bool s_textureFilter[TextureFormat::Count+1];
static GLenum s_rboFormat[] =
{
GL_ZERO, // BC1
GL_ZERO, // BC2
GL_ZERO, // BC3
GL_ZERO, // BC4
GL_ZERO, // BC5
GL_ZERO, // BC6H
GL_ZERO, // BC7
GL_ZERO, // ETC1
GL_ZERO, // ETC2
GL_ZERO, // ETC2A
GL_ZERO, // ETC2A1
GL_ZERO, // PTC12
GL_ZERO, // PTC14
GL_ZERO, // PTC12A
GL_ZERO, // PTC14A
GL_ZERO, // PTC22
GL_ZERO, // PTC24
GL_ZERO, // ATC
GL_ZERO, // ATCE
GL_ZERO, // ATCI
GL_ZERO, // ASTC4x4
GL_ZERO, // ASTC5x5
GL_ZERO, // ASTC6x6
GL_ZERO, // ASTC8x5
GL_ZERO, // ASTC8x6
GL_ZERO, // ASTC10x5
GL_ZERO, // Unknown
GL_ZERO, // R1
GL_ALPHA, // A8
GL_R8, // R8
GL_R8I, // R8I
GL_R8UI, // R8U
GL_R8_SNORM, // R8S
GL_R16, // R16
GL_R16I, // R16I
GL_R16UI, // R16U
GL_R16F, // R16F
GL_R16_SNORM, // R16S
GL_R32I, // R32I
GL_R32UI, // R32U
GL_R32F, // R32F
GL_RG8, // RG8
GL_RG8I, // RG8I
GL_RG8UI, // RG8U
GL_RG8_SNORM, // RG8S
GL_RG16, // RG16
GL_RG16I, // RG16I
GL_RG16UI, // RG16U
GL_RG16F, // RG16F
GL_RG16_SNORM, // RG16S
GL_RG32I, // RG32I
GL_RG32UI, // RG32U
GL_RG32F, // RG32F
GL_RGB8, // RGB8
GL_RGB8I, // RGB8I
GL_RGB8UI, // RGB8UI
GL_RGB8_SNORM, // RGB8S
GL_RGB9_E5, // RGB9E5F
GL_RGBA8, // BGRA8
GL_RGBA8, // RGBA8
GL_RGBA8I, // RGBA8I
GL_RGBA8UI, // RGBA8UI
GL_RGBA8_SNORM, // RGBA8S
GL_RGBA16, // RGBA16
GL_RGBA16I, // RGBA16I
GL_RGBA16UI, // RGBA16U
GL_RGBA16F, // RGBA16F
GL_RGBA16_SNORM, // RGBA16S
GL_RGBA32I, // RGBA32I
GL_RGBA32UI, // RGBA32U
GL_RGBA32F, // RGBA32F
GL_RGB565, // R5G6B5
GL_RGBA4, // RGBA4
GL_RGB5_A1, // RGB5A1
GL_RGB10_A2, // RGB10A2
GL_R11F_G11F_B10F, // RG11B10F
GL_ZERO, // UnknownDepth
GL_DEPTH_COMPONENT16, // D16
GL_DEPTH_COMPONENT24, // D24
GL_DEPTH24_STENCIL8, // D24S8
GL_DEPTH_COMPONENT32, // D32
GL_DEPTH_COMPONENT32F, // D16F
GL_DEPTH_COMPONENT32F, // D24F
GL_DEPTH_COMPONENT32F, // D32F
GL_STENCIL_INDEX8, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_rboFormat) );
static GLenum s_imageFormat[] =
{
GL_ZERO, // BC1
GL_ZERO, // BC2
GL_ZERO, // BC3
GL_ZERO, // BC4
GL_ZERO, // BC5
GL_ZERO, // BC6H
GL_ZERO, // BC7
GL_ZERO, // ETC1
GL_ZERO, // ETC2
GL_ZERO, // ETC2A
GL_ZERO, // ETC2A1
GL_ZERO, // PTC12
GL_ZERO, // PTC14
GL_ZERO, // PTC12A
GL_ZERO, // PTC14A
GL_ZERO, // PTC22
GL_ZERO, // PTC24
GL_ZERO, // ATC
GL_ZERO, // ATCE
GL_ZERO, // ATCI
GL_ZERO, // ASTC4x4
GL_ZERO, // ASTC5x5
GL_ZERO, // ASTC6x6
GL_ZERO, // ASTC8x5
GL_ZERO, // ASTC8x6
GL_ZERO, // ASTC10x5
GL_ZERO, // Unknown
GL_ZERO, // R1
GL_ALPHA, // A8
GL_R8, // R8
GL_R8I, // R8I
GL_R8UI, // R8UI
GL_R8_SNORM, // R8S
GL_R16, // R16
GL_R16I, // R16I
GL_R16UI, // R16U
GL_R16F, // R16F
GL_R16_SNORM, // R16S
GL_R32I, // R32I
GL_R32UI, // R32U
GL_R32F, // R32F
GL_RG8, // RG8
GL_RG8I, // RG8I
GL_RG8UI, // RG8U
GL_RG8_SNORM, // RG8S
GL_RG16, // RG16
GL_RG16I, // RG16I
GL_RG16UI, // RG16U
GL_RG16F, // RG16F
GL_RG16_SNORM, // RG16S
GL_RG32I, // RG32I
GL_RG32UI, // RG32U
GL_RG32F, // RG32F
GL_RGB8, // RGB8
GL_RGB8I, // RGB8I
GL_RGB8UI, // RGB8UI
GL_RGB8_SNORM, // RGB8S
GL_RGB9_E5, // RGB9E5F
GL_RGBA8, // BGRA8
GL_RGBA8, // RGBA8
GL_RGBA8I, // RGBA8I
GL_RGBA8UI, // RGBA8UI
GL_RGBA8_SNORM, // RGBA8S
GL_RGBA16, // RGBA16
GL_RGBA16I, // RGBA16I
GL_RGBA16UI, // RGBA16U
GL_RGBA16F, // RGBA16F
GL_RGBA16_SNORM, // RGBA16S
GL_RGBA32I, // RGBA32I
GL_RGBA32UI, // RGBA32U
GL_RGBA32F, // RGBA32F
GL_RGB565, // R5G6B5
GL_RGBA4, // RGBA4
GL_RGB5_A1, // RGB5A1
GL_RGB10_A2, // RGB10A2
GL_R11F_G11F_B10F, // RG11B10F
GL_ZERO, // UnknownDepth
GL_ZERO, // D16
GL_ZERO, // D24
GL_ZERO, // D24S8
GL_ZERO, // D32
GL_ZERO, // D16F
GL_ZERO, // D24F
GL_ZERO, // D32F
GL_ZERO, // D0S8
};
BX_STATIC_ASSERT(TextureFormat::Count == BX_COUNTOF(s_imageFormat) );
struct Extension
{
enum Enum
{
AMD_conservative_depth,
AMD_multi_draw_indirect,
ANGLE_depth_texture,
ANGLE_framebuffer_blit,
ANGLE_framebuffer_multisample,
ANGLE_instanced_arrays,
ANGLE_texture_compression_dxt1,
ANGLE_texture_compression_dxt3,
ANGLE_texture_compression_dxt5,
ANGLE_timer_query,
ANGLE_translated_shader_source,
APPLE_texture_format_BGRA8888,
APPLE_texture_max_level,
ARB_clip_control,
ARB_compute_shader,
ARB_conservative_depth,
ARB_copy_image,
ARB_debug_label,
ARB_debug_output,
ARB_depth_buffer_float,
ARB_depth_clamp,
ARB_draw_buffers_blend,
ARB_draw_indirect,
ARB_draw_instanced,
ARB_ES3_compatibility,
ARB_framebuffer_object,
ARB_framebuffer_sRGB,
ARB_get_program_binary,
ARB_half_float_pixel,
ARB_half_float_vertex,
ARB_instanced_arrays,
ARB_internalformat_query,
ARB_internalformat_query2,
ARB_invalidate_subdata,
ARB_map_buffer_range,
ARB_multi_draw_indirect,
ARB_multisample,
ARB_occlusion_query,
ARB_occlusion_query2,
ARB_program_interface_query,
ARB_sampler_objects,
ARB_seamless_cube_map,
ARB_shader_bit_encoding,
ARB_shader_image_load_store,
ARB_shader_storage_buffer_object,
ARB_shader_texture_lod,
ARB_texture_compression_bptc,
ARB_texture_compression_rgtc,
ARB_texture_cube_map_array,
ARB_texture_float,
ARB_texture_multisample,
ARB_texture_rg,
ARB_texture_rgb10_a2ui,
ARB_texture_stencil8,
ARB_texture_storage,
ARB_texture_swizzle,
ARB_timer_query,
ARB_uniform_buffer_object,
ARB_vertex_array_object,
ARB_vertex_type_2_10_10_10_rev,
ATI_meminfo,
CHROMIUM_color_buffer_float_rgb,
CHROMIUM_color_buffer_float_rgba,
CHROMIUM_depth_texture,
CHROMIUM_framebuffer_multisample,
CHROMIUM_texture_compression_dxt3,
CHROMIUM_texture_compression_dxt5,
EXT_bgra,
EXT_blend_color,
EXT_blend_minmax,
EXT_blend_subtract,
EXT_color_buffer_half_float,
EXT_color_buffer_float,
EXT_copy_image,
EXT_compressed_ETC1_RGB8_sub_texture,
EXT_debug_label,
EXT_debug_marker,
EXT_debug_tool,
EXT_discard_framebuffer,
EXT_disjoint_timer_query,
EXT_draw_buffers,
EXT_draw_instanced,
EXT_instanced_arrays,
EXT_frag_depth,
EXT_framebuffer_blit,
EXT_framebuffer_object,
EXT_framebuffer_sRGB,
EXT_gpu_shader4,
EXT_multi_draw_indirect,
EXT_occlusion_query_boolean,
EXT_packed_float,
EXT_read_format_bgra,
EXT_shader_image_load_store,
EXT_shader_texture_lod,
EXT_shadow_samplers,
EXT_sRGB_write_control,
EXT_texture_array,
EXT_texture_compression_dxt1,
EXT_texture_compression_latc,
EXT_texture_compression_rgtc,
EXT_texture_compression_s3tc,
EXT_texture_cube_map_array,
EXT_texture_filter_anisotropic,
EXT_texture_format_BGRA8888,
EXT_texture_rg,
EXT_texture_shared_exponent,
EXT_texture_snorm,
EXT_texture_sRGB,
EXT_texture_storage,
EXT_texture_swizzle,
EXT_texture_type_2_10_10_10_REV,
EXT_timer_query,
EXT_unpack_subimage,
GOOGLE_depth_texture,
IMG_multisampled_render_to_texture,
IMG_read_format,
IMG_shader_binary,
IMG_texture_compression_pvrtc,
IMG_texture_compression_pvrtc2,
IMG_texture_format_BGRA8888,
INTEL_fragment_shader_ordering,
KHR_debug,
KHR_no_error,
MOZ_WEBGL_compressed_texture_s3tc,
MOZ_WEBGL_depth_texture,
NV_conservative_raster,
NV_copy_image,
NV_draw_buffers,
NV_occlusion_query,
NV_texture_border_clamp,
NVX_gpu_memory_info,
OES_copy_image,
OES_compressed_ETC1_RGB8_texture,
OES_depth24,
OES_depth32,
OES_depth_texture,
OES_element_index_uint,
OES_fragment_precision_high,
OES_get_program_binary,
OES_required_internalformat,
OES_packed_depth_stencil,
OES_read_format,
OES_rgb8_rgba8,
OES_standard_derivatives,
OES_texture_3D,
OES_texture_float,
OES_texture_float_linear,
OES_texture_npot,
OES_texture_half_float,
OES_texture_half_float_linear,
OES_texture_stencil8,
OES_texture_storage_multisample_2d_array,
OES_vertex_array_object,
OES_vertex_half_float,
OES_vertex_type_10_10_10_2,
WEBGL_color_buffer_float,
WEBGL_compressed_texture_etc1,
WEBGL_compressed_texture_s3tc,
WEBGL_compressed_texture_pvrtc,
WEBGL_depth_texture,
WEBGL_draw_buffers,
WEBKIT_EXT_texture_filter_anisotropic,
WEBKIT_WEBGL_compressed_texture_s3tc,
WEBKIT_WEBGL_depth_texture,
Count
};
const char* m_name;
bool m_supported;
bool m_initialize;
};
// Extension registry
//
// ANGLE:
// https://github.com/google/angle/tree/master/extensions
//
// CHROMIUM:
// https://chromium.googlesource.com/chromium/src.git/+/refs/heads/git-svn/gpu/GLES2/extensions/CHROMIUM
//
// EGL:
// https://www.khronos.org/registry/egl/extensions/
//
// GL:
// https://www.opengl.org/registry/
//
// GLES:
// https://www.khronos.org/registry/gles/extensions/
//
// WEBGL:
// https://www.khronos.org/registry/webgl/extensions/
//
static Extension s_extension[] =
{
{ "AMD_conservative_depth", false, true },
{ "AMD_multi_draw_indirect", false, true },
{ "ANGLE_depth_texture", false, true },
{ "ANGLE_framebuffer_blit", false, true },
{ "ANGLE_framebuffer_multisample", false, false },
{ "ANGLE_instanced_arrays", false, true },
{ "ANGLE_texture_compression_dxt1", false, true },
{ "ANGLE_texture_compression_dxt3", false, true },
{ "ANGLE_texture_compression_dxt5", false, true },
{ "ANGLE_timer_query", false, true },
{ "ANGLE_translated_shader_source", false, true },
{ "APPLE_texture_format_BGRA8888", false, true },
{ "APPLE_texture_max_level", false, true },
{ "ARB_clip_control", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_compute_shader", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_conservative_depth", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_copy_image", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_debug_label", false, true },
{ "ARB_debug_output", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_depth_buffer_float", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_depth_clamp", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_draw_buffers_blend", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_draw_indirect", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_draw_instanced", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_ES3_compatibility", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_framebuffer_sRGB", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_get_program_binary", BGFX_CONFIG_RENDERER_OPENGL >= 41, true },
{ "ARB_half_float_pixel", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_half_float_vertex", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_instanced_arrays", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_internalformat_query", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_internalformat_query2", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_invalidate_subdata", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_map_buffer_range", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_multi_draw_indirect", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_multisample", false, true },
{ "ARB_occlusion_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_occlusion_query2", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_program_interface_query", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_sampler_objects", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_seamless_cube_map", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_shader_bit_encoding", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_shader_image_load_store", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_shader_storage_buffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "ARB_shader_texture_lod", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_compression_bptc", BGFX_CONFIG_RENDERER_OPENGL >= 44, true },
{ "ARB_texture_compression_rgtc", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_cube_map_array", BGFX_CONFIG_RENDERER_OPENGL >= 40, true },
{ "ARB_texture_float", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_multisample", BGFX_CONFIG_RENDERER_OPENGL >= 32, true },
{ "ARB_texture_rg", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_texture_rgb10_a2ui", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_texture_stencil8", false, true },
{ "ARB_texture_storage", BGFX_CONFIG_RENDERER_OPENGL >= 42, true },
{ "ARB_texture_swizzle", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_timer_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "ARB_uniform_buffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "ARB_vertex_array_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "ARB_vertex_type_2_10_10_10_rev", false, true },
{ "ATI_meminfo", false, true },
{ "CHROMIUM_color_buffer_float_rgb", false, true },
{ "CHROMIUM_color_buffer_float_rgba", false, true },
{ "CHROMIUM_depth_texture", false, true },
{ "CHROMIUM_framebuffer_multisample", false, true },
{ "CHROMIUM_texture_compression_dxt3", false, true },
{ "CHROMIUM_texture_compression_dxt5", false, true },
{ "EXT_bgra", false, true },
{ "EXT_blend_color", BGFX_CONFIG_RENDERER_OPENGL >= 31, true },
{ "EXT_blend_minmax", BGFX_CONFIG_RENDERER_OPENGL >= 14, true },
{ "EXT_blend_subtract", BGFX_CONFIG_RENDERER_OPENGL >= 14, true },
{ "EXT_color_buffer_half_float", false, true }, // GLES2 extension.
{ "EXT_color_buffer_float", false, true }, // GLES2 extension.
{ "EXT_copy_image", false, true }, // GLES2 extension.
{ "EXT_compressed_ETC1_RGB8_sub_texture", false, true }, // GLES2 extension.
{ "EXT_debug_label", false, true },
{ "EXT_debug_marker", false, true },
{ "EXT_debug_tool", false, true }, // RenderDoc extension.
{ "EXT_discard_framebuffer", false, true }, // GLES2 extension.
{ "EXT_disjoint_timer_query", false, true }, // GLES2 extension.
{ "EXT_draw_buffers", false, true }, // GLES2 extension.
{ "EXT_draw_instanced", false, true }, // GLES2 extension.
{ "EXT_instanced_arrays", false, true }, // GLES2 extension.
{ "EXT_frag_depth", false, true }, // GLES2 extension.
{ "EXT_framebuffer_blit", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_object", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_framebuffer_sRGB", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_gpu_shader4", false, true },
{ "EXT_multi_draw_indirect", false, true }, // GLES3.1 extension.
{ "EXT_occlusion_query_boolean", false, true }, // GLES2 extension.
{ "EXT_packed_float", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "EXT_read_format_bgra", false, true },
{ "EXT_shader_image_load_store", false, true },
{ "EXT_shader_texture_lod", false, true }, // GLES2 extension.
{ "EXT_shadow_samplers", false, true },
{ "EXT_sRGB_write_control", false, true }, // GLES2 extension.
{ "EXT_texture_array", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_compression_dxt1", false, true },
{ "EXT_texture_compression_latc", false, true },
{ "EXT_texture_compression_rgtc", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_compression_s3tc", false, true },
{ "EXT_texture_cube_map_array", false, true }, // GLES3.1 extension.
{ "EXT_texture_filter_anisotropic", false, true },
{ "EXT_texture_format_BGRA8888", false, true },
{ "EXT_texture_rg", false, true }, // GLES2 extension.
{ "EXT_texture_shared_exponent", false, true },
{ "EXT_texture_snorm", BGFX_CONFIG_RENDERER_OPENGL >= 30, true },
{ "EXT_texture_sRGB", false, true },
{ "EXT_texture_storage", false, true },
{ "EXT_texture_swizzle", false, true },
{ "EXT_texture_type_2_10_10_10_REV", false, true },
{ "EXT_timer_query", BGFX_CONFIG_RENDERER_OPENGL >= 33, true },
{ "EXT_unpack_subimage", false, true },
{ "GOOGLE_depth_texture", false, true },
{ "IMG_multisampled_render_to_texture", false, true },
{ "IMG_read_format", false, true },
{ "IMG_shader_binary", false, true },
{ "IMG_texture_compression_pvrtc", false, true },
{ "IMG_texture_compression_pvrtc2", false, true },
{ "IMG_texture_format_BGRA8888", false, true },
{ "INTEL_fragment_shader_ordering", false, true },
{ "KHR_debug", BGFX_CONFIG_RENDERER_OPENGL >= 43, true },
{ "KHR_no_error", false, true },
{ "MOZ_WEBGL_compressed_texture_s3tc", false, true },
{ "MOZ_WEBGL_depth_texture", false, true },
{ "NV_conservative_raster", false, true },
{ "NV_copy_image", false, true },
{ "NV_draw_buffers", false, true }, // GLES2 extension.
{ "NV_occlusion_query", false, true },
{ "NV_texture_border_clamp", false, true }, // GLES2 extension.
{ "NVX_gpu_memory_info", false, true },
{ "OES_copy_image", false, true },
{ "OES_compressed_ETC1_RGB8_texture", false, true },
{ "OES_depth24", false, true },
{ "OES_depth32", false, true },
{ "OES_depth_texture", false, true },
{ "OES_element_index_uint", false, true },
{ "OES_fragment_precision_high", false, true },
{ "OES_get_program_binary", false, true },
{ "OES_required_internalformat", false, true },
{ "OES_packed_depth_stencil", false, true },
{ "OES_read_format", false, true },
{ "OES_rgb8_rgba8", false, true },
{ "OES_standard_derivatives", false, true },
{ "OES_texture_3D", false, true },
{ "OES_texture_float", false, true },
{ "OES_texture_float_linear", false, true },
{ "OES_texture_npot", false, true },
{ "OES_texture_half_float", false, true },
{ "OES_texture_half_float_linear", false, true },
{ "OES_texture_stencil8", false, true },
{ "OES_texture_storage_multisample_2d_array", false, true },
{ "OES_vertex_array_object", false, !BX_PLATFORM_IOS },
{ "OES_vertex_half_float", false, true },
{ "OES_vertex_type_10_10_10_2", false, true },
{ "WEBGL_color_buffer_float", false, true },
{ "WEBGL_compressed_texture_etc1", false, true },
{ "WEBGL_compressed_texture_s3tc", false, true },
{ "WEBGL_compressed_texture_pvrtc", false, true },
{ "WEBGL_depth_texture", false, true },
{ "WEBGL_draw_buffers", false, true },
{ "WEBKIT_EXT_texture_filter_anisotropic", false, true },
{ "WEBKIT_WEBGL_compressed_texture_s3tc", false, true },
{ "WEBKIT_WEBGL_depth_texture", false, true },
};
BX_STATIC_ASSERT(Extension::Count == BX_COUNTOF(s_extension) );
static const char* s_ARB_shader_texture_lod[] =
{
"texture2DLod",
"texture2DArrayLod", // BK - interacts with ARB_texture_array.
"texture2DProjLod",
"texture2DGrad",
"texture2DProjGrad",
"texture3DLod",
"texture3DProjLod",
"texture3DGrad",
"texture3DProjGrad",
"textureCubeLod",
"textureCubeGrad",
"shadow2DLod",
"shadow2DProjLod",
NULL
// "texture1DLod",
// "texture1DProjLod",
// "shadow1DLod",
// "shadow1DProjLod",
};
static const char* s_EXT_shader_texture_lod[] =
{
"texture2DLod",
"texture2DProjLod",
"textureCubeLod",
"texture2DGrad",
"texture2DProjGrad",
"textureCubeGrad",
NULL
};
static const char* s_EXT_shadow_samplers[] =
{
"shadow2D",
"shadow2DProj",
NULL
};
static const char* s_OES_standard_derivatives[] =
{
"dFdx",
"dFdy",
"fwidth",
NULL
};
static const char* s_uisamplers[] =
{
"isampler2D",
"usampler2D",
"isampler3D",
"usampler3D",
"isamplerCube",
"usamplerCube",
NULL
};
static const char* s_uint[] =
{
"uint",
"uvec2",
"uvec3",
"uvec4",
NULL
};
static const char* s_texelFetch[] =
{
"texture",
"textureLod",
"textureGrad",
"textureProj",
"textureProjLod",
"texelFetch",
"texelFetchOffset",
NULL
};
static const char* s_texture3D[] =
{
"sampler3D",
"sampler3DArray",
NULL
};
static const char* s_textureArray[] =
{
"sampler2DArray",
"sampler2DMSArray",
"samplerCubeArray",
"sampler2DArrayShadow",
NULL
};
static const char* s_ARB_texture_multisample[] =
{
"sampler2DMS",
"isampler2DMS",
"usampler2DMS",
NULL
};
static const char* s_EXT_gpu_shader4[] =
{
"gl_VertexID",
"gl_InstanceID",
"uint",
NULL
};
static const char* s_ARB_gpu_shader5[] =
{
"bitfieldReverse",
"floatBitsToInt",
"floatBitsToUint",
"intBitsToFloat",
"uintBitsToFloat",
NULL
};
static const char* s_ARB_shading_language_packing[] =
{
"packHalf2x16",
"unpackHalf2x16",
NULL
};
static const char* s_intepolationQualifier[] =
{
"flat",
"smooth",
"noperspective",
"centroid",
NULL
};
static void GL_APIENTRY stubVertexAttribDivisor(GLuint /*_index*/, GLuint /*_divisor*/)
{
}
static void GL_APIENTRY stubDrawArraysInstanced(GLenum _mode, GLint _first, GLsizei _count, GLsizei /*_primcount*/)
{
GL_CHECK(glDrawArrays(_mode, _first, _count) );
}
static void GL_APIENTRY stubDrawElementsInstanced(GLenum _mode, GLsizei _count, GLenum _type, const GLvoid* _indices, GLsizei /*_primcount*/)
{
GL_CHECK(glDrawElements(_mode, _count, _type, _indices) );
}
static void GL_APIENTRY stubInsertEventMarker(GLsizei /*_length*/, const char* /*_marker*/)
{
}
static void GL_APIENTRY stubPushDebugGroup(GLenum /*_source*/, GLuint /*_id*/, GLsizei /*_length*/, const char* /*_message*/)
{
}
static void GL_APIENTRY stubPopDebugGroup()
{
}
static void GL_APIENTRY stubObjectLabel(GLenum /*_identifier*/, GLuint /*_name*/, GLsizei /*_length*/, const char* /*_label*/)
{
}
static void GL_APIENTRY stubInvalidateFramebuffer(GLenum /*_target*/, GLsizei /*_numAttachments*/, const GLenum* /*_attachments*/)
{
}
static void GL_APIENTRY stubMultiDrawArraysIndirect(GLenum _mode, const void* _indirect, GLsizei _drawcount, GLsizei _stride)
{
const uint8_t* args = (const uint8_t*)_indirect;
for (GLsizei ii = 0; ii < _drawcount; ++ii)
{
GL_CHECK(glDrawArraysIndirect(_mode, (void*)args) );
args += _stride;
}
}
static void GL_APIENTRY stubMultiDrawElementsIndirect(GLenum _mode, GLenum _type, const void* _indirect, GLsizei _drawcount, GLsizei _stride)
{
const uint8_t* args = (const uint8_t*)_indirect;
for (GLsizei ii = 0; ii < _drawcount; ++ii)
{
GL_CHECK(glDrawElementsIndirect(_mode, _type, (void*)args) );
args += _stride;
}
}
static void GL_APIENTRY stubPolygonMode(GLenum /*_face*/, GLenum /*_mode*/)
{
}
typedef void (*PostSwapBuffersFn)(uint32_t _width, uint32_t _height);
void flushGlError()
{
for (GLenum err = glGetError(); err != 0; err = glGetError() );
}
GLenum getGlError()
{
GLenum err = glGetError();
flushGlError();
return err;
}
static const char* getGLString(GLenum _name)
{
const char* str = (const char*)glGetString(_name);
getGlError(); // ignore error if glGetString returns NULL.
if (NULL != str)
{
return str;
}
return "<unknown>";
}
static uint32_t getGLStringHash(GLenum _name)
{
const char* str = (const char*)glGetString(_name);
getGlError(); // ignore error if glGetString returns NULL.
if (NULL != str)
{
return bx::hash<bx::HashMurmur2A>(str, (uint32_t)bx::strLen(str) );
}
return 0;
}
void dumpExtensions(const char* _extensions)
{
if (NULL != _extensions)
{
char name[1024];
const char* pos = _extensions;
const char* end = _extensions + bx::strLen(_extensions);
while (pos < end)
{
uint32_t len;
bx::StringView space = bx::strFind(pos, ' ');
if (!space.isEmpty() )
{
len = bx::uint32_min(sizeof(name), (uint32_t)(space.getPtr() - pos) );
}
else
{
len = bx::uint32_min(sizeof(name), (uint32_t)bx::strLen(pos) );
}
bx::strCopy(name, BX_COUNTOF(name), pos, len);
name[len] = '\0';
BX_TRACE("\t%s", name);
pos += len+1;
}
}
}
const char* toString(GLenum _enum)
{
switch (_enum)
{
case GL_DEBUG_SOURCE_API: return "API";
case GL_DEBUG_SOURCE_WINDOW_SYSTEM: return "WinSys";
case GL_DEBUG_SOURCE_SHADER_COMPILER: return "Shader";
case GL_DEBUG_SOURCE_THIRD_PARTY: return "3rdparty";
case GL_DEBUG_SOURCE_APPLICATION: return "Application";
case GL_DEBUG_SOURCE_OTHER: return "Other";
case GL_DEBUG_TYPE_ERROR: return "Error";
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: return "Deprecated behavior";
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: return "Undefined behavior";
case GL_DEBUG_TYPE_PORTABILITY: return "Portability";
case GL_DEBUG_TYPE_PERFORMANCE: return "Performance";
case GL_DEBUG_TYPE_OTHER: return "Other";
case GL_DEBUG_SEVERITY_HIGH: return "High";
case GL_DEBUG_SEVERITY_MEDIUM: return "Medium";
case GL_DEBUG_SEVERITY_LOW: return "Low";
case GL_DEBUG_SEVERITY_NOTIFICATION: return "SPAM";
default:
break;
}
return "<unknown>";
}
void GL_APIENTRY debugProcCb(GLenum _source, GLenum _type, GLuint _id, GLenum _severity, GLsizei /*_length*/, const GLchar* _message, const void* /*_userParam*/)
{
if (GL_DEBUG_SEVERITY_NOTIFICATION != _severity)
{
BX_TRACE("src %s, type %s, id %d, severity %s, '%s'"
, toString(_source)
, toString(_type)
, _id
, toString(_severity)
, _message
);
BX_UNUSED(_source, _type, _id, _severity, _message);
}
}
GLint glGet(GLenum _pname)
{
GLint result = 0;
glGetIntegerv(_pname, &result);
GLenum err = getGlError();
BX_WARN(0 == err, "glGetIntegerv(0x%04x, ...) failed with GL error: 0x%04x.", _pname, err);
return 0 == err ? result : 0;
}
void setTextureFormat(TextureFormat::Enum _format, GLenum _internalFmt, GLenum _fmt, GLenum _type = GL_ZERO)
{
TextureFormatInfo& tfi = s_textureFormat[_format];
tfi.m_internalFmt = _internalFmt;
tfi.m_fmt = _fmt;
tfi.m_type = _type;
}
static void texSubImage(
GLenum _target
, GLint _level
, GLint _xoffset
, GLint _yoffset
, GLint _zoffset
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLenum _format
, GLenum _type
, const GLvoid* _data
)
{
if (NULL == _data)
{
return;
}
if (_target == GL_TEXTURE_3D
|| _target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
glTexSubImage3D(
_target
, _level
, _xoffset
, _yoffset
, _zoffset
, _width
, _height
, _depth
, _format
, _type
, _data
);
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
}
else
{
BX_UNUSED(_zoffset, _depth);
glTexSubImage2D(
_target
, _level
, _xoffset
, _yoffset
, _width
, _height
, _format
, _type
, _data
);
}
}
static void texImage(
GLenum _target
, uint32_t _msaaQuality
, GLint _level
, GLint _internalFormat
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLint _border
, GLenum _format
, GLenum _type
, const GLvoid* _data
)
{
if (_target == GL_TEXTURE_3D)
{
glTexImage3D(
_target
, _level
, _internalFormat
, _width
, _height
, _depth
, _border
, _format
, _type
, _data
);
}
else if (_target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
texSubImage(
_target
, _level
, 0
, 0
, _depth
, _width
, _height
, 1
, _format
, _type
, _data
);
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE)
{
glTexImage2DMultisample(
_target
, _msaaQuality
, _internalFormat
, _width
, _height
, false
);
}
else
{
glTexImage2D(
_target
, _level
, _internalFormat
, _width
, _height
, _border
, _format
, _type
, _data
);
}
BX_UNUSED(_msaaQuality, _depth, _border, _data);
}
static void compressedTexSubImage(
GLenum _target
, GLint _level
, GLint _xoffset
, GLint _yoffset
, GLint _zoffset
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLenum _format
, GLsizei _imageSize
, const GLvoid* _data
)
{
if (_target == GL_TEXTURE_3D
|| _target == GL_TEXTURE_2D_ARRAY)
{
glCompressedTexSubImage3D(
_target
, _level
, _xoffset
, _yoffset
, _zoffset
, _width
, _height
, _depth
, _format
, _imageSize
, _data
);
}
else
{
BX_UNUSED(_zoffset, _depth);
glCompressedTexSubImage2D(
_target
, _level
, _xoffset
, _yoffset
, _width
, _height
, _format
, _imageSize
, _data
);
}
}
static void compressedTexImage(
GLenum _target
, GLint _level
, GLenum _internalformat
, GLsizei _width
, GLsizei _height
, GLsizei _depth
, GLint _border
, GLsizei _imageSize
, const GLvoid* _data
)
{
if (_target == GL_TEXTURE_3D)
{
glCompressedTexImage3D(
_target
, _level
, _internalformat
, _width
, _height
, _depth
, _border
, _imageSize
, _data
);
}
else if (_target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY)
{
compressedTexSubImage(
_target
, _level
, 0
, 0
, _depth
, _width
, _height
, 1
, _internalformat
, _imageSize
, _data
);
}
else if (_target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY)
{
}
else
{
BX_UNUSED(_depth);
glCompressedTexImage2D(
_target
, _level
, _internalformat
, _width
, _height
, _border
, _imageSize
, _data
);
}
}
GLenum initTestTexture(TextureFormat::Enum _format, bool _srgb, bool _mipmaps, bool _array, GLsizei _dim)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
: tfi.m_internalFmt
;
GLsizei bpp = bimg::getBitsPerPixel(bimg::TextureFormat::Enum(_format) );
GLsizei size = (_dim*_dim*bpp)/8;
void* data = NULL;
if (bimg::isDepth(bimg::TextureFormat::Enum(_format) ) )
{
_srgb = false;
_mipmaps = false;
_array = false;
}
else
{
data = bx::alignPtr(alloca(size+16), 0, 16);
}
flushGlError();
GLenum err = 0;
const GLenum target = _array
? GL_TEXTURE_2D_ARRAY
: GL_TEXTURE_2D
;
if (bimg::isCompressed(bimg::TextureFormat::Enum(_format) ) )
{
for (uint32_t ii = 0, dim = _dim; ii < (_mipmaps ? 5u : 1u) && 0 == err; ++ii, dim >>= 1)
{
dim = bx::uint32_max(1, dim);
uint32_t block = bx::uint32_max(4, dim);
size = (block*block*bpp)/8;
compressedTexImage(target, ii, internalFmt, dim, dim, 0, 0, size, data);
err |= getGlError();
}
}
else
{
for (uint32_t ii = 0, dim = _dim; ii < (_mipmaps ? 5u : 1u) && 0 == err; ++ii, dim >>= 1)
{
dim = bx::uint32_max(1, dim);
size = (dim*dim*bpp)/8;
texImage(target, 0, ii, internalFmt, dim, dim, 0, 0, tfi.m_fmt, tfi.m_type, data);
err |= getGlError();
}
}
return err;
}
static bool isTextureFormatValid(
TextureFormat::Enum _format
, bool _srgb = false
, bool _mipAutogen = false
, bool _array = false
, GLsizei _dim = 16
)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
: tfi.m_internalFmt
;
if (GL_ZERO == internalFmt)
{
return false;
}
BX_TRACE("%d, %d, %d, %s", _array, _srgb, _mipAutogen, getName(_format) );
const GLenum target = _array
? GL_TEXTURE_2D_ARRAY
: GL_TEXTURE_2D
;
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(target, id) );
GLenum err = 0;
if (_array)
{
glTexStorage3D(target
, 1 + GLsizei(bx::log2(float(_dim) ) )
, internalFmt
, _dim
, _dim
, _dim
);
err = getGlError();
}
if (0 == err)
{
err = initTestTexture(_format, _srgb, _mipAutogen, _array, _dim);
BX_WARN(0 == err, "TextureFormat::%s %s%s%sis not supported (%x: %s)."
, getName(_format)
, _srgb ? "+sRGB " : ""
, _mipAutogen ? "+mipAutoGen " : ""
, _array ? "+array " : ""
, err
, glEnumName(err)
);
if (0 == err
&& _mipAutogen)
{
glGenerateMipmap(target);
err = getGlError();
}
}
GL_CHECK(glDeleteTextures(1, &id) );
return 0 == err;
}
static bool isImageFormatValid(TextureFormat::Enum _format, GLsizei _dim = 16)
{
if (GL_ZERO == s_imageFormat[_format])
{
return false;
}
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, id) );
flushGlError();
GLenum err = 0;
glTexStorage2D(GL_TEXTURE_2D, 1, s_imageFormat[_format], _dim, _dim);
err |= getGlError();
if (0 == err)
{
glBindImageTexture(0
, id
, 0
, GL_FALSE
, 0
, GL_READ_WRITE
, s_imageFormat[_format]
);
err |= getGlError();
}
GL_CHECK(glDeleteTextures(1, &id) );
return 0 == err;
}
static bool isFramebufferFormatValid(
TextureFormat::Enum _format
, bool _srgb = false
, bool _writeOnly = false
, GLsizei _dim = 16
)
{
const TextureFormatInfo& tfi = s_textureFormat[_format];
GLenum internalFmt = _srgb
? tfi.m_internalFmtSrgb
: tfi.m_internalFmt
;
if (GL_ZERO == internalFmt)
{
return false;
}
if (_writeOnly)
{
GLuint rbo;
glGenRenderbuffers(1, &rbo);
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(GL_RENDERBUFFER
, s_rboFormat[_format]
, _dim
, _dim
);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
glDeleteRenderbuffers(1, &rbo);
GLenum err = getGlError();
return 0 == err;
}
GLuint fbo;
GL_CHECK(glGenFramebuffers(1, &fbo) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, fbo) );
GLuint id;
GL_CHECK(glGenTextures(1, &id) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, id) );
GLenum err = initTestTexture(_format, _srgb, false, false, _dim);
GLenum attachment;
if (bimg::isDepth(bimg::TextureFormat::Enum(_format) ) )
{
const bimg::ImageBlockInfo& info = bimg::getBlockInfo(bimg::TextureFormat::Enum(_format) );
if (0 == info.depthBits)
{
attachment = GL_STENCIL_ATTACHMENT;
}
else if (0 == info.stencilBits)
{
attachment = GL_DEPTH_ATTACHMENT;
}
else
{
attachment = GL_DEPTH_STENCIL_ATTACHMENT;
}
}
else
{
attachment = GL_COLOR_ATTACHMENT0;
}
glFramebufferTexture2D(GL_FRAMEBUFFER
, attachment
, GL_TEXTURE_2D
, id
, 0
);
err = getGlError();
if (0 == err)
{
err = glCheckFramebufferStatus(GL_FRAMEBUFFER);
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, 0) );
GL_CHECK(glDeleteFramebuffers(1, &fbo) );
GL_CHECK(glDeleteTextures(1, &id) );
return GL_FRAMEBUFFER_COMPLETE == err;
}
static void getFilters(uint32_t _flags, bool _hasMips, GLenum& _magFilter, GLenum& _minFilter)
{
const uint32_t mag = (_flags&BGFX_SAMPLER_MAG_MASK)>>BGFX_SAMPLER_MAG_SHIFT;
const uint32_t min = (_flags&BGFX_SAMPLER_MIN_MASK)>>BGFX_SAMPLER_MIN_SHIFT;
const uint32_t mip = (_flags&BGFX_SAMPLER_MIP_MASK)>>BGFX_SAMPLER_MIP_SHIFT;
_magFilter = s_textureFilterMag[mag];
_minFilter = s_textureFilterMin[min][_hasMips ? mip+1 : 0];
}
void updateExtension(const bx::StringView& _name)
{
bx::StringView ext(_name);
if (0 == bx::strCmp(ext, "GL_", 3) ) // skip GL_
{
ext.set(ext.getPtr()+3, ext.getTerm() );
}
bool supported = false;
for (uint32_t ii = 0; ii < Extension::Count; ++ii)
{
Extension& extension = s_extension[ii];
if (!extension.m_supported
&& extension.m_initialize)
{
if (0 == bx::strCmp(ext, extension.m_name) )
{
extension.m_supported = true;
supported = true;
break;
}
}
}
BX_TRACE("GL_EXTENSION %s: %.*s", supported ? " (supported)" : "", _name.getLength(), _name.getPtr() );
BX_UNUSED(supported);
}
struct VendorId
{
const char* name;
uint16_t id;
};
static const VendorId s_vendorIds[] =
{
{ "NVIDIA Corporation", BGFX_PCI_ID_NVIDIA },
{ "Advanced Micro Devices, Inc.", BGFX_PCI_ID_AMD },
{ "Intel", BGFX_PCI_ID_INTEL },
{ "ATI Technologies Inc.", BGFX_PCI_ID_AMD },
};
struct Workaround
{
void reset()
{
m_detachShader = true;
}
bool m_detachShader;
};
struct RendererContextGL : public RendererContextI
{
RendererContextGL()
: m_numWindows(1)
, m_rtMsaa(false)
, m_fbDiscard(BGFX_CLEAR_NONE)
, m_capture(NULL)
, m_captureSize(0)
, m_maxAnisotropy(0.0f)
, m_maxAnisotropyDefault(0.0f)
, m_maxMsaa(0)
, m_vao(0)
, m_blitSupported(false)
, m_readBackSupported(BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
, m_vaoSupport(false)
, m_samplerObjectSupport(false)
, m_shadowSamplersSupport(false)
, m_srgbWriteControlSupport(BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
, m_borderColorSupport(BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
, m_programBinarySupport(false)
, m_textureSwizzleSupport(false)
, m_depthTextureSupport(false)
, m_timerQuerySupport(false)
, m_occlusionQuerySupport(false)
, m_atocSupport(false)
, m_conservativeRasterSupport(false)
, m_flip(false)
, m_hash( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT)
, m_backBufferFbo(0)
, m_msaaBackBufferFbo(0)
, m_clearQuadColor(BGFX_INVALID_HANDLE)
, m_clearQuadDepth(BGFX_INVALID_HANDLE)
{
bx::memSet(m_msaaBackBufferRbos, 0, sizeof(m_msaaBackBufferRbos) );
}
~RendererContextGL()
{
}
bool init(const Init& _init)
{
struct ErrorState
{
enum Enum
{
Default,
};
};
ErrorState::Enum errorState = ErrorState::Default;
if (_init.debug
|| _init.profile)
{
m_renderdocdll = loadRenderDoc();
}
m_fbh.idx = kInvalidHandle;
bx::memSet(m_uniforms, 0, sizeof(m_uniforms) );
bx::memSet(&m_resolution, 0, sizeof(m_resolution) );
setRenderContextSize(_init.resolution.width, _init.resolution.height);
m_vendor = getGLString(GL_VENDOR);
m_renderer = getGLString(GL_RENDERER);
m_version = getGLString(GL_VERSION);
m_glslVersion = getGLString(GL_SHADING_LANGUAGE_VERSION);
for (uint32_t ii = 0; ii < BX_COUNTOF(s_vendorIds); ++ii)
{
const VendorId& vendorId = s_vendorIds[ii];
if (0 == bx::strCmp(vendorId.name, m_vendor, bx::strLen(vendorId.name) ) )
{
g_caps.vendorId = vendorId.id;
break;
}
}
m_workaround.reset();
GLint numCmpFormats = 0;
GL_CHECK(glGetIntegerv(GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numCmpFormats) );
BX_TRACE("GL_NUM_COMPRESSED_TEXTURE_FORMATS %d", numCmpFormats);
GLint* cmpFormat = NULL;
if (0 < numCmpFormats)
{
numCmpFormats = numCmpFormats > 256 ? 256 : numCmpFormats;
cmpFormat = (GLint*)alloca(sizeof(GLint)*numCmpFormats);
GL_CHECK(glGetIntegerv(GL_COMPRESSED_TEXTURE_FORMATS, cmpFormat) );
for (GLint ii = 0; ii < numCmpFormats; ++ii)
{
GLint internalFmt = cmpFormat[ii];
uint32_t fmt = uint32_t(TextureFormat::Unknown);
for (uint32_t jj = 0; jj < fmt; ++jj)
{
if (s_textureFormat[jj].m_internalFmt == (GLenum)internalFmt)
{
s_textureFormat[jj].m_supported = true;
fmt = jj;
}
}
BX_TRACE(" %3d: %8x %s", ii, internalFmt, getName( (TextureFormat::Enum)fmt) );
}
}
if (BX_ENABLED(BGFX_CONFIG_DEBUG) )
{
#define GL_GET(_pname, _min) BX_TRACE(" " #_pname " %d (min: %d)", glGet(_pname), _min)
BX_TRACE("Defaults:");
#if BGFX_CONFIG_RENDERER_OPENGL >= 41 || BGFX_CONFIG_RENDERER_OPENGLES
GL_GET(GL_MAX_FRAGMENT_UNIFORM_VECTORS, 16);
GL_GET(GL_MAX_VERTEX_UNIFORM_VECTORS, 128);
GL_GET(GL_MAX_VARYING_VECTORS, 8);
#else
GL_GET(GL_MAX_FRAGMENT_UNIFORM_COMPONENTS, 16 * 4);
GL_GET(GL_MAX_VERTEX_UNIFORM_COMPONENTS, 128 * 4);
GL_GET(GL_MAX_VARYING_FLOATS, 8 * 4);
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 41 || BGFX_CONFIG_RENDERER_OPENGLES
GL_GET(GL_MAX_VERTEX_ATTRIBS, 8);
GL_GET(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, 8);
GL_GET(GL_MAX_CUBE_MAP_TEXTURE_SIZE, 16);
GL_GET(GL_MAX_TEXTURE_IMAGE_UNITS, 8);
GL_GET(GL_MAX_TEXTURE_SIZE, 64);
GL_GET(GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS, 0);
GL_GET(GL_MAX_RENDERBUFFER_SIZE, 1);
GL_GET(GL_MAX_COLOR_ATTACHMENTS, 1);
GL_GET(GL_MAX_DRAW_BUFFERS, 1);
GL_GET(GL_MAX_LABEL_LENGTH, 0);
#undef GL_GET
BX_TRACE(" Vendor: %s", m_vendor);
BX_TRACE(" Renderer: %s", m_renderer);
BX_TRACE(" Version: %s", m_version);
BX_TRACE("GLSL version: %s", m_glslVersion);
}
// Initial binary shader hash depends on driver version.
m_hash = ( (BX_PLATFORM_WINDOWS<<1) | BX_ARCH_64BIT)
^ (uint64_t(getGLStringHash(GL_VENDOR ) )<<32)
^ (uint64_t(getGLStringHash(GL_RENDERER) )<<0 )
^ (uint64_t(getGLStringHash(GL_VERSION ) )<<16)
;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 31)
&& 0 == bx::strCmp(m_vendor, "Imagination Technologies")
&& !bx::strFind(m_version, "(SDK 3.5@3510720)").isEmpty() )
{
// Skip initializing extensions that are broken in emulator.
s_extension[Extension::ARB_program_interface_query ].m_initialize =
s_extension[Extension::ARB_shader_storage_buffer_object].m_initialize = false;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& 0 == bx::strCmp(m_vendor, "Imagination Technologies")
&& !bx::strFind(m_version, "1.8@905891").isEmpty() )
{
m_workaround.m_detachShader = false;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_USE_EXTENSIONS) )
{
const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
getGlError(); // ignore error if glGetString returns NULL.
if (NULL != extensions)
{
bx::StringView ext(extensions);
uint32_t index = 0;
while (!ext.isEmpty() )
{
const bx::StringView space = bx::strFind(ext, ' ');
const bx::StringView token = bx::StringView(ext.getPtr(), space.getPtr() );
updateExtension(token);
ext.set(space.getPtr() + (space.isEmpty() ? 0 : 1), ext.getTerm() );
++index;
}
}
else if (NULL != glGetStringi)
{
GLint numExtensions = 0;
glGetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
getGlError(); // ignore error if glGetIntegerv returns NULL.
for (GLint index = 0; index < numExtensions; ++index)
{
const char* name = (const char*)glGetStringi(GL_EXTENSIONS, index);
updateExtension(name);
}
}
BX_TRACE("Supported extensions:");
for (uint32_t ii = 0; ii < Extension::Count; ++ii)
{
if (s_extension[ii].m_supported)
{
BX_TRACE("\t%2d: %s", ii, s_extension[ii].m_name);
}
}
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& !s_extension[Extension::ARB_framebuffer_object].m_supported)
{
BX_TRACE("Init error: ARB_framebuffer_object not supported.");
goto error;
}
{
// Allow all texture filters.
bx::memSet(s_textureFilter, true, BX_COUNTOF(s_textureFilter) );
bool bc123Supported = 0
|| s_extension[Extension::EXT_texture_compression_s3tc ].m_supported
|| s_extension[Extension::MOZ_WEBGL_compressed_texture_s3tc ].m_supported
|| s_extension[Extension::WEBGL_compressed_texture_s3tc ].m_supported
|| s_extension[Extension::WEBKIT_WEBGL_compressed_texture_s3tc].m_supported
;
s_textureFormat[TextureFormat::BC1].m_supported |= bc123Supported
|| s_extension[Extension::ANGLE_texture_compression_dxt1].m_supported
|| s_extension[Extension::EXT_texture_compression_dxt1 ].m_supported
;
if (!s_textureFormat[TextureFormat::BC1].m_supported
&& ( s_textureFormat[TextureFormat::BC2].m_supported || s_textureFormat[TextureFormat::BC3].m_supported) )
{
// If RGBA_S3TC_DXT1 is not supported, maybe RGB_S3TC_DXT1 is?
for (GLint ii = 0; ii < numCmpFormats; ++ii)
{
if (GL_COMPRESSED_RGB_S3TC_DXT1_EXT == cmpFormat[ii])
{
setTextureFormat(TextureFormat::BC1, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_COMPRESSED_RGB_S3TC_DXT1_EXT);
s_textureFormat[TextureFormat::BC1].m_supported = true;
break;
}
}
}
s_textureFormat[TextureFormat::BC2].m_supported |= bc123Supported
|| s_extension[Extension::ANGLE_texture_compression_dxt3 ].m_supported
|| s_extension[Extension::CHROMIUM_texture_compression_dxt3].m_supported
;
s_textureFormat[TextureFormat::BC3].m_supported |= bc123Supported
|| s_extension[Extension::ANGLE_texture_compression_dxt5 ].m_supported
|| s_extension[Extension::CHROMIUM_texture_compression_dxt5].m_supported
;
if (s_extension[Extension::EXT_texture_compression_latc].m_supported)
{
setTextureFormat(TextureFormat::BC4, GL_COMPRESSED_LUMINANCE_LATC1_EXT, GL_COMPRESSED_LUMINANCE_LATC1_EXT);
setTextureFormat(TextureFormat::BC5, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT);
}
if (s_extension[Extension::ARB_texture_compression_rgtc].m_supported
|| s_extension[Extension::EXT_texture_compression_rgtc].m_supported)
{
setTextureFormat(TextureFormat::BC4, GL_COMPRESSED_RED_RGTC1, GL_COMPRESSED_RED_RGTC1);
setTextureFormat(TextureFormat::BC5, GL_COMPRESSED_RG_RGTC2, GL_COMPRESSED_RG_RGTC2);
}
bool etc1Supported = 0
|| s_extension[Extension::OES_compressed_ETC1_RGB8_texture].m_supported
|| s_extension[Extension::WEBGL_compressed_texture_etc1 ].m_supported
;
s_textureFormat[TextureFormat::ETC1].m_supported |= etc1Supported;
bool etc2Supported = !!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_ES3_compatibility].m_supported
;
s_textureFormat[TextureFormat::ETC2 ].m_supported |= etc2Supported;
s_textureFormat[TextureFormat::ETC2A ].m_supported |= etc2Supported;
s_textureFormat[TextureFormat::ETC2A1].m_supported |= etc2Supported;
if (!s_textureFormat[TextureFormat::ETC1].m_supported
&& s_textureFormat[TextureFormat::ETC2].m_supported)
{
// When ETC2 is supported override ETC1 texture format settings.
s_textureFormat[TextureFormat::ETC1].m_internalFmt = GL_COMPRESSED_RGB8_ETC2;
s_textureFormat[TextureFormat::ETC1].m_fmt = GL_COMPRESSED_RGB8_ETC2;
s_textureFormat[TextureFormat::ETC1].m_supported = true;
}
bool ptc1Supported = 0
|| s_extension[Extension::IMG_texture_compression_pvrtc ].m_supported
|| s_extension[Extension::WEBGL_compressed_texture_pvrtc].m_supported
;
s_textureFormat[TextureFormat::PTC12 ].m_supported |= ptc1Supported;
s_textureFormat[TextureFormat::PTC14 ].m_supported |= ptc1Supported;
s_textureFormat[TextureFormat::PTC12A].m_supported |= ptc1Supported;
s_textureFormat[TextureFormat::PTC14A].m_supported |= ptc1Supported;
bool ptc2Supported = s_extension[Extension::IMG_texture_compression_pvrtc2].m_supported;
s_textureFormat[TextureFormat::PTC22].m_supported |= ptc2Supported;
s_textureFormat[TextureFormat::PTC24].m_supported |= ptc2Supported;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES) )
{
setTextureFormat(TextureFormat::D32, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
{
setTextureFormat(TextureFormat::RGBA16F, GL_RGBA, GL_RGBA, GL_HALF_FLOAT);
setTextureFormat(TextureFormat::RGBA32F, GL_RGBA, GL_RGBA, GL_FLOAT);
// internalFormat and format must match:
// https://www.khronos.org/opengles/sdk/docs/man/xhtml/glTexImage2D.xml
setTextureFormat(TextureFormat::RGBA8, GL_RGBA, GL_RGBA, GL_UNSIGNED_BYTE);
setTextureFormat(TextureFormat::R5G6B5, GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV);
setTextureFormat(TextureFormat::RGBA4, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV);
setTextureFormat(TextureFormat::RGB5A1, GL_RGBA, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV);
if (s_extension[Extension::OES_texture_half_float].m_supported
|| s_extension[Extension::OES_texture_float ].m_supported)
{
// https://www.khronos.org/registry/gles/extensions/OES/OES_texture_float.txt
// When half/float is available via extensions texture will be marked as
// incomplete if it uses anything other than nearest filter.
const bool linear16F = s_extension[Extension::OES_texture_half_float_linear].m_supported;
const bool linear32F = s_extension[Extension::OES_texture_float_linear ].m_supported;
s_textureFilter[TextureFormat::R16F] = linear16F;
s_textureFilter[TextureFormat::RG16F] = linear16F;
s_textureFilter[TextureFormat::RGBA16F] = linear16F;
s_textureFilter[TextureFormat::R32F] = linear32F;
s_textureFilter[TextureFormat::RG32F] = linear32F;
s_textureFilter[TextureFormat::RGBA32F] = linear32F;
}
if (BX_ENABLED(BX_PLATFORM_IOS) || BX_ENABLED(BX_PLATFORM_EMSCRIPTEN))
{
setTextureFormat(TextureFormat::D16, GL_DEPTH_COMPONENT, GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT);
setTextureFormat(TextureFormat::D24S8, GL_DEPTH_STENCIL, GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8);
}
}
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
setTextureFormat(TextureFormat::R8I, GL_R8I, GL_RED_INTEGER, GL_BYTE);
setTextureFormat(TextureFormat::R8U, GL_R8UI, GL_RED_INTEGER, GL_UNSIGNED_BYTE);
setTextureFormat(TextureFormat::R16I, GL_R16I, GL_RED_INTEGER, GL_SHORT);
setTextureFormat(TextureFormat::R16U, GL_R16UI, GL_RED_INTEGER, GL_UNSIGNED_SHORT);
// setTextureFormat(TextureFormat::RG16, GL_RG16UI, GL_RG_INTEGER, GL_UNSIGNED_SHORT);
// setTextureFormat(TextureFormat::RGBA16, GL_RGBA16UI, GL_RGBA_INTEGER, GL_UNSIGNED_SHORT);
setTextureFormat(TextureFormat::R32U, GL_R32UI, GL_RED_INTEGER, GL_UNSIGNED_INT);
setTextureFormat(TextureFormat::RG32U, GL_RG32UI, GL_RG_INTEGER, GL_UNSIGNED_INT);
setTextureFormat(TextureFormat::RGBA32U, GL_RGBA32UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT);
}
if (s_extension[Extension::EXT_texture_format_BGRA8888 ].m_supported
|| s_extension[Extension::EXT_bgra ].m_supported
|| s_extension[Extension::IMG_texture_format_BGRA8888 ].m_supported
|| s_extension[Extension::APPLE_texture_format_BGRA8888].m_supported)
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
m_readPixelsFmt = GL_BGRA;
}
// Mixing GLES and GL extensions here. OpenGL EXT_bgra and
// APPLE_texture_format_BGRA8888 wants
// format to be BGRA but internal format to stay RGBA, but
// EXT_texture_format_BGRA8888 wants both format and internal
// format to be BGRA.
//
// Reference(s):
// - https://web.archive.org/web/20181126035829/https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_texture_format_BGRA8888.txt
// - https://web.archive.org/web/20181126035841/https://www.khronos.org/registry/OpenGL/extensions/EXT/EXT_bgra.txt
// - https://web.archive.org/web/20181126035851/https://www.khronos.org/registry/OpenGL/extensions/APPLE/APPLE_texture_format_BGRA8888.txt
//
if (!s_extension[Extension::EXT_bgra ].m_supported
&& !s_extension[Extension::APPLE_texture_format_BGRA8888].m_supported)
{
s_textureFormat[TextureFormat::BGRA8].m_internalFmt = GL_BGRA;
}
if (!isTextureFormatValid(TextureFormat::BGRA8) )
{
// Revert back to RGBA if texture can't be created.
setTextureFormat(TextureFormat::BGRA8, GL_RGBA, GL_BGRA, GL_UNSIGNED_BYTE);
}
}
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
{
setTextureFormat(TextureFormat::RGBA4, GL_ZERO, GL_ZERO, GL_ZERO);
setTextureFormat(TextureFormat::RGB5A1, GL_ZERO, GL_ZERO, GL_ZERO);
if (!isTextureFormatValid(TextureFormat::R8) )
{
// GL core has to use GL_R8 Issue#208, GLES2 has to use GL_LUMINANCE issue#226
s_textureFormat[TextureFormat::R8].m_internalFmt = GL_LUMINANCE;
s_textureFormat[TextureFormat::R8].m_fmt = GL_LUMINANCE;
}
}
for (uint32_t ii = BX_ENABLED(BX_PLATFORM_IOS) ? TextureFormat::Unknown : 0 // skip test on iOS!
; ii < TextureFormat::Count
; ++ii
)
{
if (TextureFormat::Unknown != ii
&& TextureFormat::UnknownDepth != ii)
{
s_textureFormat[ii].m_supported = isTextureFormatValid(TextureFormat::Enum(ii) );
}
}
if (BX_ENABLED(0) )
{
// Disable all compressed texture formats. For testing only.
for (uint32_t ii = 0; ii < TextureFormat::Unknown; ++ii)
{
s_textureFormat[ii].m_supported = false;
}
}
const bool computeSupport = false
|| !!(BGFX_CONFIG_RENDERER_OPENGLES >= 31)
|| s_extension[Extension::ARB_compute_shader].m_supported
;
for (uint32_t ii = 0; ii < TextureFormat::Count; ++ii)
{
const TextureFormat::Enum fmt = TextureFormat::Enum(ii);
uint16_t supported = BGFX_CAPS_FORMAT_TEXTURE_NONE;
supported |= s_textureFormat[ii].m_supported
? BGFX_CAPS_FORMAT_TEXTURE_2D
| BGFX_CAPS_FORMAT_TEXTURE_3D
| BGFX_CAPS_FORMAT_TEXTURE_CUBE
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
supported |= isTextureFormatValid(fmt, true)
? BGFX_CAPS_FORMAT_TEXTURE_2D_SRGB
| BGFX_CAPS_FORMAT_TEXTURE_3D_SRGB
| BGFX_CAPS_FORMAT_TEXTURE_CUBE_SRGB
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
if (!bimg::isCompressed(bimg::TextureFormat::Enum(fmt) ) )
{
supported |= isTextureFormatValid(fmt, false, true)
? BGFX_CAPS_FORMAT_TEXTURE_MIP_AUTOGEN
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
}
supported |= computeSupport
&& isImageFormatValid(fmt)
? BGFX_CAPS_FORMAT_TEXTURE_IMAGE
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
supported |= isFramebufferFormatValid(fmt)
? BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
supported |= isFramebufferFormatValid(fmt, false, true)
? BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
if (NULL != glGetInternalformativ)
{
GLint maxSamples;
glGetInternalformativ(GL_RENDERBUFFER
, s_textureFormat[ii].m_internalFmt
, GL_SAMPLES
, 1
, &maxSamples
);
GLenum err = getGlError();
supported |= 0 == err && maxSamples > 0
? BGFX_CAPS_FORMAT_TEXTURE_FRAMEBUFFER_MSAA
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
glGetInternalformativ(GL_TEXTURE_2D_MULTISAMPLE
, s_textureFormat[ii].m_internalFmt
, GL_SAMPLES
, 1
, &maxSamples
);
err = getGlError();
supported |= 0 == err && maxSamples > 0
? BGFX_CAPS_FORMAT_TEXTURE_MSAA
: BGFX_CAPS_FORMAT_TEXTURE_NONE
;
}
g_caps.formats[ii] = supported;
}
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::OES_texture_3D].m_supported
? BGFX_CAPS_TEXTURE_3D
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_shadow_samplers].m_supported
? BGFX_CAPS_TEXTURE_COMPARE_ALL
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::OES_vertex_half_float].m_supported
? BGFX_CAPS_VERTEX_ATTRIB_HALF
: 0
;
g_caps.supported |= false
|| s_extension[Extension::ARB_vertex_type_2_10_10_10_rev].m_supported
|| s_extension[Extension::OES_vertex_type_10_10_10_2].m_supported
? BGFX_CAPS_VERTEX_ATTRIB_UINT10
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_frag_depth].m_supported
? BGFX_CAPS_FRAGMENT_DEPTH
: 0
;
g_caps.supported |= s_extension[Extension::ARB_draw_buffers_blend].m_supported
? BGFX_CAPS_BLEND_INDEPENDENT
: 0
;
g_caps.supported |= s_extension[Extension::INTEL_fragment_shader_ordering].m_supported
? BGFX_CAPS_FRAGMENT_ORDERING
: 0
;
g_caps.supported |= !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::OES_element_index_uint].m_supported
? BGFX_CAPS_INDEX32
: 0
;
const bool drawIndirectSupported = false
|| s_extension[Extension::AMD_multi_draw_indirect].m_supported
|| s_extension[Extension::ARB_draw_indirect ].m_supported
|| s_extension[Extension::ARB_multi_draw_indirect].m_supported
|| s_extension[Extension::EXT_multi_draw_indirect].m_supported
;
if (drawIndirectSupported)
{
if (NULL == glMultiDrawArraysIndirect
|| NULL == glMultiDrawElementsIndirect)
{
glMultiDrawArraysIndirect = stubMultiDrawArraysIndirect;
glMultiDrawElementsIndirect = stubMultiDrawElementsIndirect;
}
}
g_caps.supported |= drawIndirectSupported
? BGFX_CAPS_DRAW_INDIRECT
: 0
;
if (BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
|| NULL == glPolygonMode)
{
glPolygonMode = stubPolygonMode;
}
if (s_extension[Extension::ARB_copy_image].m_supported
|| s_extension[Extension::EXT_copy_image].m_supported
|| s_extension[Extension:: NV_copy_image].m_supported
|| s_extension[Extension::OES_copy_image].m_supported)
{
m_blitSupported = NULL != glCopyImageSubData;
g_caps.supported |= m_blitSupported
? BGFX_CAPS_TEXTURE_BLIT
: 0
;
}
g_caps.supported |= m_readBackSupported
? BGFX_CAPS_TEXTURE_READ_BACK
: 0
;
g_caps.supported |= false
|| s_extension[Extension::EXT_texture_array].m_supported
|| s_extension[Extension::EXT_gpu_shader4].m_supported
|| (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30) && !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
? BGFX_CAPS_TEXTURE_2D_ARRAY
: 0
;
g_caps.supported |= false
|| s_extension[Extension::EXT_gpu_shader4].m_supported
|| (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30) && !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN) )
? BGFX_CAPS_VERTEX_ID
: 0
;
g_caps.supported |= false
|| s_extension[Extension::ARB_texture_cube_map_array].m_supported
|| s_extension[Extension::EXT_texture_cube_map_array].m_supported
? BGFX_CAPS_TEXTURE_CUBE_ARRAY
: 0
;
g_caps.limits.maxTextureSize = uint16_t(glGet(GL_MAX_TEXTURE_SIZE) );
g_caps.limits.maxTextureLayers = uint16_t(bx::max(glGet(GL_MAX_ARRAY_TEXTURE_LAYERS), 1) );
g_caps.limits.maxComputeBindings = computeSupport ? BGFX_MAX_COMPUTE_BINDINGS : 0;
g_caps.limits.maxVertexStreams = BGFX_CONFIG_MAX_VERTEX_STREAMS;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_draw_buffers ].m_supported
|| s_extension[Extension::WEBGL_draw_buffers].m_supported)
{
g_caps.limits.maxFBAttachments = uint8_t(bx::uint32_clamp(
glGet(GL_MAX_DRAW_BUFFERS)
, 1
, BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS)
);
}
// if (s_extension[Extension::ARB_clip_control].m_supported)
// {
// GL_CHECK(glClipControl(GL_LOWER_LEFT, GL_ZERO_TO_ONE) );
// g_caps.originBottomLeft = true;
// }
// else
{
g_caps.homogeneousDepth = true;
g_caps.originBottomLeft = true;
}
m_vaoSupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_vertex_array_object].m_supported
|| s_extension[Extension::OES_vertex_array_object].m_supported
);
if (m_vaoSupport)
{
GL_CHECK(glGenVertexArrays(1, &m_vao) );
}
m_samplerObjectSupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_sampler_objects].m_supported
);
m_shadowSamplersSupport = !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::EXT_shadow_samplers].m_supported
;
m_programBinarySupport = !BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& (!!(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ARB_get_program_binary].m_supported
|| s_extension[Extension::OES_get_program_binary].m_supported
|| s_extension[Extension::IMG_shader_binary ].m_supported
);
m_textureSwizzleSupport = false
|| s_extension[Extension::ARB_texture_swizzle].m_supported
|| s_extension[Extension::EXT_texture_swizzle].m_supported
;
m_depthTextureSupport = !!(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::ANGLE_depth_texture ].m_supported
|| s_extension[Extension::CHROMIUM_depth_texture ].m_supported
|| s_extension[Extension::GOOGLE_depth_texture ].m_supported
|| s_extension[Extension::OES_depth_texture ].m_supported
|| s_extension[Extension::MOZ_WEBGL_depth_texture ].m_supported
|| s_extension[Extension::WEBGL_depth_texture ].m_supported
|| s_extension[Extension::WEBKIT_WEBGL_depth_texture].m_supported
;
m_timerQuerySupport = false
|| s_extension[Extension::ANGLE_timer_query ].m_supported
|| s_extension[Extension::ARB_timer_query ].m_supported
|| s_extension[Extension::EXT_disjoint_timer_query].m_supported
|| s_extension[Extension::EXT_timer_query ].m_supported
;
m_timerQuerySupport &= true
&& NULL != glQueryCounter
&& NULL != glGetQueryObjectiv
&& NULL != glGetQueryObjectui64v
;
m_occlusionQuerySupport = false
|| s_extension[Extension::ARB_occlusion_query ].m_supported
|| s_extension[Extension::ARB_occlusion_query2 ].m_supported
|| s_extension[Extension::EXT_occlusion_query_boolean].m_supported
|| s_extension[Extension::NV_occlusion_query ].m_supported
;
m_occlusionQuerySupport &= true
&& NULL != glGenQueries
&& NULL != glDeleteQueries
&& NULL != glBeginQuery
&& NULL != glEndQuery
;
m_atocSupport = s_extension[Extension::ARB_multisample].m_supported;
m_conservativeRasterSupport = s_extension[Extension::NV_conservative_raster].m_supported;
m_imageLoadStoreSupport = false
|| s_extension[Extension::ARB_shader_image_load_store].m_supported
|| s_extension[Extension::EXT_shader_image_load_store].m_supported
;
g_caps.supported |= 0
| (m_atocSupport ? BGFX_CAPS_ALPHA_TO_COVERAGE : 0)
| (m_conservativeRasterSupport ? BGFX_CAPS_CONSERVATIVE_RASTER : 0)
| (m_occlusionQuerySupport ? BGFX_CAPS_OCCLUSION_QUERY : 0)
| (m_depthTextureSupport ? BGFX_CAPS_TEXTURE_COMPARE_LEQUAL : 0)
| (computeSupport ? BGFX_CAPS_COMPUTE : 0)
| (m_imageLoadStoreSupport ? BGFX_CAPS_FRAMEBUFFER_RW : 0)
;
g_caps.supported |= m_glctx.getCaps();
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES) )
{
m_srgbWriteControlSupport = s_extension[Extension::EXT_sRGB_write_control].m_supported;
m_borderColorSupport = s_extension[Extension::NV_texture_border_clamp].m_supported;
s_textureAddress[BGFX_SAMPLER_U_BORDER>>BGFX_SAMPLER_U_SHIFT] = s_extension[Extension::NV_texture_border_clamp].m_supported
? GL_CLAMP_TO_BORDER
: GL_CLAMP_TO_EDGE
;
}
if (s_extension[Extension::EXT_texture_filter_anisotropic].m_supported)
{
GL_CHECK(glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &m_maxAnisotropyDefault) );
}
if (s_extension[Extension::ARB_texture_multisample].m_supported
|| s_extension[Extension::ANGLE_framebuffer_multisample].m_supported)
{
GL_CHECK(glGetIntegerv(GL_MAX_SAMPLES, &m_maxMsaa) );
}
if (s_extension[Extension::OES_read_format].m_supported
&& (s_extension[Extension::IMG_read_format].m_supported || s_extension[Extension::EXT_read_format_bgra].m_supported) )
{
m_readPixelsFmt = GL_BGRA;
}
else
{
m_readPixelsFmt = GL_RGBA;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
g_caps.supported |= BGFX_CAPS_INSTANCING;
}
else
{
if (s_extension[Extension::ANGLE_instanced_arrays].m_supported
|| s_extension[Extension::ARB_instanced_arrays].m_supported
|| s_extension[Extension::EXT_instanced_arrays].m_supported)
{
if (NULL != glVertexAttribDivisor
&& NULL != glDrawArraysInstanced
&& NULL != glDrawElementsInstanced)
{
g_caps.supported |= BGFX_CAPS_INSTANCING;
}
}
if (0 == (g_caps.supported & BGFX_CAPS_INSTANCING) )
{
glVertexAttribDivisor = stubVertexAttribDivisor;
glDrawArraysInstanced = stubDrawArraysInstanced;
glDrawElementsInstanced = stubDrawElementsInstanced;
}
}
if (s_extension[Extension::ARB_debug_output].m_supported
|| s_extension[Extension::KHR_debug].m_supported)
{
if (NULL != glDebugMessageControl
&& NULL != glDebugMessageInsert
&& NULL != glDebugMessageCallback
&& NULL != glGetDebugMessageLog)
{
GL_CHECK(glDebugMessageCallback(debugProcCb, NULL) );
GL_CHECK(glDebugMessageControl(GL_DONT_CARE
, GL_DONT_CARE
, GL_DEBUG_SEVERITY_MEDIUM
, 0
, NULL
, GL_TRUE
) );
}
}
if (NULL == glPushDebugGroup
|| NULL == glPopDebugGroup)
{
glPushDebugGroup = stubPushDebugGroup;
glPopDebugGroup = stubPopDebugGroup;
}
if (s_extension[Extension::ARB_seamless_cube_map].m_supported)
{
GL_CHECK(glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS) );
}
if (NULL == glInsertEventMarker
|| !s_extension[Extension::EXT_debug_marker].m_supported)
{
glInsertEventMarker = stubInsertEventMarker;
}
m_maxLabelLen = uint16_t(glGet(GL_MAX_LABEL_LENGTH) );
setGraphicsDebuggerPresent(s_extension[Extension::EXT_debug_tool].m_supported);
if (NULL == glObjectLabel)
{
glObjectLabel = stubObjectLabel;
}
if (NULL == glInvalidateFramebuffer)
{
glInvalidateFramebuffer = stubInvalidateFramebuffer;
}
if (m_timerQuerySupport)
{
m_gpuTimer.create();
}
if (m_occlusionQuerySupport)
{
m_occlusionQuery.create();
}
// Init reserved part of view name.
for (uint32_t ii = 0; ii < BGFX_CONFIG_MAX_VIEWS; ++ii)
{
bx::snprintf(s_viewName[ii], BGFX_CONFIG_MAX_VIEW_NAME_RESERVED+1, "%3d ", ii);
}
m_needPresent = false;
}
return true;
error:
switch (errorState)
{
case ErrorState::Default:
break;
}
m_glctx.destroy();
unloadRenderDoc(m_renderdocdll);
return false;
}
void shutdown()
{
if (m_vaoSupport)
{
GL_CHECK(glBindVertexArray(0) );
GL_CHECK(glDeleteVertexArrays(1, &m_vao) );
m_vao = 0;
}
captureFinish();
invalidateCache();
if (m_timerQuerySupport)
{
m_gpuTimer.destroy();
}
if (m_occlusionQuerySupport)
{
m_occlusionQuery.destroy();
}
destroyMsaaFbo();
m_glctx.destroy();
m_flip = false;
unloadRenderDoc(m_renderdocdll);
}
RendererType::Enum getRendererType() const override
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
return RendererType::OpenGL;
}
return RendererType::OpenGLES;
}
const char* getRendererName() const override
{
return BGFX_RENDERER_OPENGL_NAME;
}
bool isDeviceRemoved() override
{
return false;
}
void flip() override
{
if (m_flip)
{
for (uint32_t ii = 1, num = m_numWindows; ii < num; ++ii)
{
FrameBufferGL& frameBuffer = m_frameBuffers[m_windows[ii].idx];
if (frameBuffer.m_needPresent)
{
m_glctx.swap(frameBuffer.m_swapChain);
frameBuffer.m_needPresent = false;
}
}
if (m_needPresent)
{
// Ensure the back buffer is bound as the source of the flip
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo));
m_glctx.swap();
m_needPresent = false;
}
}
}
void createIndexBuffer(IndexBufferHandle _handle, const Memory* _mem, uint16_t _flags) override
{
m_indexBuffers[_handle.idx].create(_mem->size, _mem->data, _flags);
}
void destroyIndexBuffer(IndexBufferHandle _handle) override
{
m_indexBuffers[_handle.idx].destroy();
}
void createVertexLayout(VertexLayoutHandle _handle, const VertexLayout& _layout) override
{
VertexLayout& layout = m_vertexLayouts[_handle.idx];
bx::memCopy(&layout, &_layout, sizeof(VertexLayout) );
dump(layout);
}
void destroyVertexLayout(VertexLayoutHandle /*_handle*/) override
{
}
void createVertexBuffer(VertexBufferHandle _handle, const Memory* _mem, VertexLayoutHandle _layoutHandle, uint16_t _flags) override
{
m_vertexBuffers[_handle.idx].create(_mem->size, _mem->data, _layoutHandle, _flags);
}
void destroyVertexBuffer(VertexBufferHandle _handle) override
{
m_vertexBuffers[_handle.idx].destroy();
}
void createDynamicIndexBuffer(IndexBufferHandle _handle, uint32_t _size, uint16_t _flags) override
{
m_indexBuffers[_handle.idx].create(_size, NULL, _flags);
}
void updateDynamicIndexBuffer(IndexBufferHandle _handle, uint32_t _offset, uint32_t _size, const Memory* _mem) override
{
m_indexBuffers[_handle.idx].update(_offset, bx::uint32_min(_size, _mem->size), _mem->data);
}
void destroyDynamicIndexBuffer(IndexBufferHandle _handle) override
{
m_indexBuffers[_handle.idx].destroy();
}
void createDynamicVertexBuffer(VertexBufferHandle _handle, uint32_t _size, uint16_t _flags) override
{
VertexLayoutHandle layoutHandle = BGFX_INVALID_HANDLE;
m_vertexBuffers[_handle.idx].create(_size, NULL, layoutHandle, _flags);
}
void updateDynamicVertexBuffer(VertexBufferHandle _handle, uint32_t _offset, uint32_t _size, const Memory* _mem) override
{
m_vertexBuffers[_handle.idx].update(_offset, bx::uint32_min(_size, _mem->size), _mem->data);
}
void destroyDynamicVertexBuffer(VertexBufferHandle _handle) override
{
m_vertexBuffers[_handle.idx].destroy();
}
void createShader(ShaderHandle _handle, const Memory* _mem) override
{
m_shaders[_handle.idx].create(_mem);
}
void destroyShader(ShaderHandle _handle) override
{
m_shaders[_handle.idx].destroy();
}
void createProgram(ProgramHandle _handle, ShaderHandle _vsh, ShaderHandle _fsh) override
{
ShaderGL dummyFragmentShader;
m_program[_handle.idx].create(m_shaders[_vsh.idx], isValid(_fsh) ? m_shaders[_fsh.idx] : dummyFragmentShader);
}
void destroyProgram(ProgramHandle _handle) override
{
m_program[_handle.idx].destroy();
}
void* createTexture(TextureHandle _handle, const Memory* _mem, uint64_t _flags, uint8_t _skip) override
{
m_textures[_handle.idx].create(_mem, _flags, _skip);
return NULL;
}
void updateTextureBegin(TextureHandle /*_handle*/, uint8_t /*_side*/, uint8_t /*_mip*/) override
{
}
void updateTexture(TextureHandle _handle, uint8_t _side, uint8_t _mip, const Rect& _rect, uint16_t _z, uint16_t _depth, uint16_t _pitch, const Memory* _mem) override
{
m_textures[_handle.idx].update(_side, _mip, _rect, _z, _depth, _pitch, _mem);
}
void updateTextureEnd() override
{
}
void readTexture(TextureHandle _handle, void* _data, uint8_t _mip) override
{
if (m_readBackSupported)
{
const TextureGL& texture = m_textures[_handle.idx];
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(texture.m_textureFormat) );
GL_CHECK(glBindTexture(texture.m_target, texture.m_id) );
if (compressed)
{
GL_CHECK(glGetCompressedTexImage(texture.m_target
, _mip
, _data
) );
}
else
{
GL_CHECK(glGetTexImage(texture.m_target
, _mip
, texture.m_fmt
, texture.m_type
, _data
) );
}
GL_CHECK(glBindTexture(texture.m_target, 0) );
}
else
{
const TextureGL& texture = m_textures[_handle.idx];
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(texture.m_textureFormat) );
if (!compressed)
{
Attachment at[1];
at[0].init(_handle);
FrameBufferGL frameBuffer;
frameBuffer.create(BX_COUNTOF(at), at);
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer.m_fbo[0]) );
GL_CHECK(glFramebufferTexture2D(
GL_FRAMEBUFFER
, GL_COLOR_ATTACHMENT0
, GL_TEXTURE_2D
, texture.m_id
, at[0].mip
) );
if (!BX_ENABLED(BX_PLATFORM_EMSCRIPTEN)
&& !BX_ENABLED(BX_PLATFORM_IOS) )
{
GL_CHECK(glReadBuffer(GL_COLOR_ATTACHMENT0) );
}
if (GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER) )
{
GL_CHECK(glReadPixels(
0
, 0
, texture.m_width
, texture.m_height
, m_readPixelsFmt
, GL_UNSIGNED_BYTE
, _data
) );
}
frameBuffer.destroy();
}
}
}
void resizeTexture(TextureHandle _handle, uint16_t _width, uint16_t _height, uint8_t _numMips, uint16_t _numLayers) override
{
TextureGL& texture = m_textures[_handle.idx];
uint32_t size = sizeof(uint32_t) + sizeof(TextureCreate);
const Memory* mem = alloc(size);
bx::StaticMemoryBlockWriter writer(mem->data, mem->size);
uint32_t magic = BGFX_CHUNK_MAGIC_TEX;
bx::write(&writer, magic);
TextureCreate tc;
tc.m_width = _width;
tc.m_height = _height;
tc.m_depth = 0;
tc.m_numLayers = _numLayers;
tc.m_numMips = _numMips;
tc.m_format = TextureFormat::Enum(texture.m_requestedFormat);
tc.m_cubeMap = false;
tc.m_mem = NULL;
bx::write(&writer, tc);
texture.destroy();
texture.create(mem, texture.m_flags, 0);
release(mem);
}
void overrideInternal(TextureHandle _handle, uintptr_t _ptr) override
{
m_textures[_handle.idx].overrideInternal(_ptr);
}
uintptr_t getInternal(TextureHandle _handle) override
{
return uintptr_t(m_textures[_handle.idx].m_id);
}
void destroyTexture(TextureHandle _handle) override
{
m_textures[_handle.idx].destroy();
}
void createFrameBuffer(FrameBufferHandle _handle, uint8_t _num, const Attachment* _attachment) override
{
m_frameBuffers[_handle.idx].create(_num, _attachment);
}
void createFrameBuffer(FrameBufferHandle _handle, void* _nwh, uint32_t _width, uint32_t _height, TextureFormat::Enum _format, TextureFormat::Enum _depthFormat) override
{
uint16_t denseIdx = m_numWindows++;
m_windows[denseIdx] = _handle;
m_frameBuffers[_handle.idx].create(denseIdx, _nwh, _width, _height, _format, _depthFormat);
}
void destroyFrameBuffer(FrameBufferHandle _handle) override
{
uint16_t denseIdx = m_frameBuffers[_handle.idx].destroy();
if (UINT16_MAX != denseIdx)
{
--m_numWindows;
if (m_numWindows > 1)
{
FrameBufferHandle handle = m_windows[m_numWindows];
m_windows[m_numWindows] = {kInvalidHandle};
if (m_numWindows != denseIdx)
{
m_windows[denseIdx] = handle;
m_frameBuffers[handle.idx].m_denseIdx = denseIdx;
}
}
}
}
void createUniform(UniformHandle _handle, UniformType::Enum _type, uint16_t _num, const char* _name) override
{
if (NULL != m_uniforms[_handle.idx])
{
BX_FREE(g_allocator, m_uniforms[_handle.idx]);
}
uint32_t size = g_uniformTypeSize[_type]*_num;
void* data = BX_ALLOC(g_allocator, size);
bx::memSet(data, 0, size);
m_uniforms[_handle.idx] = data;
m_uniformReg.add(_handle, _name);
}
void destroyUniform(UniformHandle _handle) override
{
BX_FREE(g_allocator, m_uniforms[_handle.idx]);
m_uniforms[_handle.idx] = NULL;
m_uniformReg.remove(_handle);
}
void requestScreenShot(FrameBufferHandle _handle, const char* _filePath) override
{
SwapChainGL* swapChain = NULL;
uint32_t width = m_resolution.width;
uint32_t height = m_resolution.height;
if (isValid(_handle) )
{
const FrameBufferGL& frameBuffer = m_frameBuffers[_handle.idx];
swapChain = frameBuffer.m_swapChain;
width = frameBuffer.m_width;
height = frameBuffer.m_height;
}
m_glctx.makeCurrent(swapChain);
uint32_t length = width*height*4;
uint8_t* data = (uint8_t*)BX_ALLOC(g_allocator, length);
GL_CHECK(glReadPixels(0
, 0
, width
, height
, m_readPixelsFmt
, GL_UNSIGNED_BYTE
, data
) );
if (GL_RGBA == m_readPixelsFmt)
{
bimg::imageSwizzleBgra8(data, width*4, width, height, data, width*4);
}
g_callback->screenShot(_filePath
, width
, height
, width*4
, data
, length
, true
);
BX_FREE(g_allocator, data);
}
void updateViewName(ViewId _id, const char* _name) override
{
bx::strCopy(&s_viewName[_id][BGFX_CONFIG_MAX_VIEW_NAME_RESERVED]
, BX_COUNTOF(s_viewName[0])-BGFX_CONFIG_MAX_VIEW_NAME_RESERVED
, _name
);
}
void updateUniform(uint16_t _loc, const void* _data, uint32_t _size) override
{
bx::memCopy(m_uniforms[_loc], _data, _size);
}
void invalidateOcclusionQuery(OcclusionQueryHandle _handle) override
{
m_occlusionQuery.invalidate(_handle);
}
void setMarker(const char* _marker, uint16_t _len) override
{
GL_CHECK(glInsertEventMarker(_len, _marker) );
}
virtual void setName(Handle _handle, const char* _name, uint16_t _len) override
{
uint16_t len = bx::min(_len, m_maxLabelLen);
switch (_handle.type)
{
case Handle::IndexBuffer:
GL_CHECK(glObjectLabel(GL_BUFFER, m_indexBuffers[_handle.idx].m_id, len, _name) );
break;
case Handle::Shader:
GL_CHECK(glObjectLabel(GL_SHADER, m_shaders[_handle.idx].m_id, len, _name) );
break;
case Handle::Texture:
{
GLint id = m_textures[_handle.idx].m_id;
if (0 != id)
{
GL_CHECK(glObjectLabel(GL_TEXTURE, id, len, _name) );
}
else
{
GL_CHECK(glObjectLabel(GL_RENDERBUFFER, m_textures[_handle.idx].m_rbo, len, _name) );
}
}
break;
case Handle::VertexBuffer:
GL_CHECK(glObjectLabel(GL_BUFFER, m_vertexBuffers[_handle.idx].m_id, len, _name) );
break;
default:
BX_CHECK(false, "Invalid handle type?! %d", _handle.type);
break;
}
}
void submitBlit(BlitState& _bs, uint16_t _view);
void submit(Frame* _render, ClearQuad& _clearQuad, TextVideoMemBlitter& _textVideoMemBlitter) override;
void blitSetup(TextVideoMemBlitter& _blitter) override
{
if (0 != m_vao)
{
GL_CHECK(glBindVertexArray(m_vao) );
}
uint32_t width = m_resolution.width;
uint32_t height = m_resolution.height;
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glViewport(0, 0, width, height) );
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
GL_CHECK(glDisable(GL_STENCIL_TEST) );
GL_CHECK(glDisable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_ALWAYS) );
GL_CHECK(glDisable(GL_CULL_FACE) );
GL_CHECK(glDisable(GL_BLEND) );
GL_CHECK(glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE) );
ProgramGL& program = m_program[_blitter.m_program.idx];
GL_CHECK(glUseProgram(program.m_id) );
GL_CHECK(glUniform1i(program.m_sampler[0], 0) );
float proj[16];
bx::mtxOrtho(proj, 0.0f, (float)width, (float)height, 0.0f, 0.0f, 1000.0f, 0.0f, g_caps.homogeneousDepth);
GL_CHECK(glUniformMatrix4fv(program.m_predefined[0].m_loc
, 1
, GL_FALSE
, proj
) );
GL_CHECK(glActiveTexture(GL_TEXTURE0) );
GL_CHECK(glBindTexture(GL_TEXTURE_2D, m_textures[_blitter.m_texture.idx].m_id) );
if (!BX_ENABLED(BX_PLATFORM_OSX) )
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
if (m_samplerObjectSupport)
{
GL_CHECK(glBindSampler(0, 0) );
}
}
}
}
void blitRender(TextVideoMemBlitter& _blitter, uint32_t _numIndices) override
{
const uint32_t numVertices = _numIndices*4/6;
if (0 < numVertices)
{
m_indexBuffers[_blitter.m_ib->handle.idx].update(0, _numIndices*2, _blitter.m_ib->data);
m_vertexBuffers[_blitter.m_vb->handle.idx].update(0, numVertices*_blitter.m_layout.m_stride, _blitter.m_vb->data);
VertexBufferGL& vb = m_vertexBuffers[_blitter.m_vb->handle.idx];
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, vb.m_id) );
IndexBufferGL& ib = m_indexBuffers[_blitter.m_ib->handle.idx];
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib.m_id) );
ProgramGL& program = m_program[_blitter.m_program.idx];
program.bindAttributesBegin();
program.bindAttributes(_blitter.m_layout, 0);
program.bindAttributesEnd();
GL_CHECK(glDrawElements(GL_TRIANGLES
, _numIndices
, GL_UNSIGNED_SHORT
, (void*)0
) );
}
}
void updateResolution(const Resolution& _resolution)
{
m_maxAnisotropy = !!(_resolution.reset & BGFX_RESET_MAXANISOTROPY)
? m_maxAnisotropyDefault
: 0.0f
;
if (s_extension[Extension::ARB_depth_clamp].m_supported)
{
if (!!(_resolution.reset & BGFX_RESET_DEPTH_CLAMP) )
{
GL_CHECK(glEnable(GL_DEPTH_CLAMP) );
}
else
{
GL_CHECK(glDisable(GL_DEPTH_CLAMP) );
}
}
const uint32_t maskFlags = ~(0
| BGFX_RESET_MAXANISOTROPY
| BGFX_RESET_DEPTH_CLAMP
| BGFX_RESET_SUSPEND
);
if (m_resolution.width != _resolution.width
|| m_resolution.height != _resolution.height
|| (m_resolution.reset&maskFlags) != (_resolution.reset&maskFlags) )
{
uint32_t flags = _resolution.reset & (~BGFX_RESET_INTERNAL_FORCE);
m_resolution = _resolution;
m_resolution.reset = flags;
m_textVideoMem.resize(false, _resolution.width, _resolution.height);
m_textVideoMem.clear();
setRenderContextSize(m_resolution.width
, m_resolution.height
, flags
);
updateCapture();
for (uint32_t ii = 0; ii < BX_COUNTOF(m_frameBuffers); ++ii)
{
m_frameBuffers[ii].postReset();
}
m_currentFbo = 0;
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_currentFbo) );
}
}
void setShaderUniform4f(uint8_t /*_flags*/, uint32_t _regIndex, const void* _val, uint32_t _numRegs)
{
GL_CHECK(glUniform4fv(_regIndex
, _numRegs
, (const GLfloat*)_val
) );
}
void setShaderUniform4x4f(uint8_t /*_flags*/, uint32_t _regIndex, const void* _val, uint32_t _numRegs)
{
GL_CHECK(glUniformMatrix4fv(_regIndex
, _numRegs
, GL_FALSE
, (const GLfloat*)_val
) );
}
uint32_t setFrameBuffer(FrameBufferHandle _fbh, uint32_t _height, uint16_t _discard = BGFX_CLEAR_NONE, bool _msaa = true)
{
if (isValid(m_fbh)
&& m_fbh.idx != _fbh.idx)
{
FrameBufferGL& frameBuffer = m_frameBuffers[m_fbh.idx];
frameBuffer.resolve();
if (BGFX_CLEAR_NONE != m_fbDiscard)
{
frameBuffer.discard(m_fbDiscard);
m_fbDiscard = BGFX_CLEAR_NONE;
}
}
m_glctx.makeCurrent(NULL);
if (!isValid(_fbh) )
{
m_needPresent |= true;
m_currentFbo = m_msaaBackBufferFbo;
if (m_srgbWriteControlSupport)
{
if (0 != (m_resolution.reset & BGFX_RESET_SRGB_BACKBUFFER) )
{
GL_CHECK(glEnable(GL_FRAMEBUFFER_SRGB) );
}
else
{
GL_CHECK(glDisable(GL_FRAMEBUFFER_SRGB) );
}
}
}
else
{
FrameBufferGL& frameBuffer = m_frameBuffers[_fbh.idx];
_height = frameBuffer.m_height;
if (UINT16_MAX != frameBuffer.m_denseIdx)
{
m_glctx.makeCurrent(frameBuffer.m_swapChain);
GL_CHECK(glFrontFace(GL_CW) );
frameBuffer.m_needPresent = true;
m_currentFbo = 0;
}
else
{
m_glctx.makeCurrent(NULL);
m_currentFbo = frameBuffer.m_fbo[0];
}
frameBuffer.set();
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_currentFbo) );
m_fbh = _fbh;
m_fbDiscard = _discard;
m_rtMsaa = _msaa;
return _height;
}
uint32_t getNumRt() const
{
if (isValid(m_fbh) )
{
const FrameBufferGL& frameBuffer = m_frameBuffers[m_fbh.idx];
return frameBuffer.m_num;
}
return 1;
}
void createMsaaFbo(uint32_t _width, uint32_t _height, uint32_t _msaa)
{
if (0 == m_msaaBackBufferFbo // iOS
&& 1 < _msaa)
{
GLenum storageFormat = (m_resolution.reset & BGFX_RESET_SRGB_BACKBUFFER)
? GL_SRGB8_ALPHA8
: GL_RGBA8
;
GL_CHECK(glGenFramebuffers(1, &m_msaaBackBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
GL_CHECK(glGenRenderbuffers(BX_COUNTOF(m_msaaBackBufferRbos), m_msaaBackBufferRbos) );
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_msaaBackBufferRbos[0]) );
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, storageFormat, _width, _height) );
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_msaaBackBufferRbos[1]) );
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER, _msaa, GL_DEPTH24_STENCIL8, _width, _height) );
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, m_msaaBackBufferRbos[0]) );
GLenum attachment = BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
? GL_DEPTH_STENCIL_ATTACHMENT
: GL_DEPTH_ATTACHMENT
;
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, m_msaaBackBufferRbos[1]) );
BX_CHECK(GL_FRAMEBUFFER_COMPLETE == glCheckFramebufferStatus(GL_FRAMEBUFFER)
, "glCheckFramebufferStatus failed 0x%08x"
, glCheckFramebufferStatus(GL_FRAMEBUFFER)
);
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
}
}
void destroyMsaaFbo()
{
if (m_backBufferFbo != m_msaaBackBufferFbo // iOS
&& 0 != m_msaaBackBufferFbo)
{
GL_CHECK(glDeleteFramebuffers(1, &m_msaaBackBufferFbo) );
m_msaaBackBufferFbo = 0;
if (0 != m_msaaBackBufferRbos[0])
{
GL_CHECK(glDeleteRenderbuffers(BX_COUNTOF(m_msaaBackBufferRbos), m_msaaBackBufferRbos) );
m_msaaBackBufferRbos[0] = 0;
m_msaaBackBufferRbos[1] = 0;
}
}
}
void blitMsaaFbo()
{
if (m_backBufferFbo != m_msaaBackBufferFbo // iOS
&& 0 != m_msaaBackBufferFbo)
{
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_msaaBackBufferFbo) );
GL_CHECK(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0) );
uint32_t width = m_resolution.width;
uint32_t height = m_resolution.height;
GLenum filter = BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30)
? GL_NEAREST
: GL_LINEAR
;
GL_CHECK(glBlitFramebuffer(0
, 0
, width
, height
, 0
, 0
, width
, height
, GL_COLOR_BUFFER_BIT
, filter
) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
}
}
void setRenderContextSize(uint32_t _width, uint32_t _height, uint32_t _flags = 0)
{
if (_width != 0
|| _height != 0)
{
if (!m_glctx.isValid() )
{
m_glctx.create(_width, _height);
#if BX_PLATFORM_IOS
// iOS: need to figure out how to deal with FBO created by context.
m_backBufferFbo = m_msaaBackBufferFbo = m_glctx.getFbo();
#endif // BX_PLATFORM_IOS
}
else
{
destroyMsaaFbo();
m_glctx.resize(_width, _height, _flags);
uint32_t msaa = (_flags&BGFX_RESET_MSAA_MASK)>>BGFX_RESET_MSAA_SHIFT;
msaa = bx::uint32_min(m_maxMsaa, msaa == 0 ? 0 : 1<<msaa);
createMsaaFbo(_width, _height, msaa);
}
}
m_flip = true;
}
void invalidateCache()
{
if ( (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
&& m_samplerObjectSupport)
{
m_samplerStateCache.invalidate();
}
}
void setSamplerState(uint32_t _stage, uint32_t _numMips, uint32_t _flags, const float _rgba[4])
{
if ( (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
&& m_samplerObjectSupport)
{
if (0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & _flags) )
{
const uint32_t index = (_flags & BGFX_SAMPLER_BORDER_COLOR_MASK) >> BGFX_SAMPLER_BORDER_COLOR_SHIFT;
_flags &= ~BGFX_SAMPLER_RESERVED_MASK;
_flags &= BGFX_SAMPLER_BITS_MASK;
_flags |= _numMips<<BGFX_SAMPLER_RESERVED_SHIFT;
GLuint sampler;
bool hasBorderColor = false;
bx::HashMurmur2A murmur;
uint32_t hash;
murmur.begin();
murmur.add(_flags);
if (!needBorderColor(_flags) )
{
murmur.add(-1);
hash = murmur.end();
sampler = m_samplerStateCache.find(hash);
}
else
{
murmur.add(index);
hash = murmur.end();
if (NULL != _rgba)
{
hasBorderColor = true;
sampler = UINT32_MAX;
}
else
{
sampler = m_samplerStateCache.find(hash);
}
}
if (UINT32_MAX == sampler)
{
sampler = m_samplerStateCache.add(hash);
GL_CHECK(glSamplerParameteri(sampler
, GL_TEXTURE_WRAP_S
, s_textureAddress[(_flags&BGFX_SAMPLER_U_MASK)>>BGFX_SAMPLER_U_SHIFT]
) );
GL_CHECK(glSamplerParameteri(sampler
, GL_TEXTURE_WRAP_T
, s_textureAddress[(_flags&BGFX_SAMPLER_V_MASK)>>BGFX_SAMPLER_V_SHIFT]
) );
GL_CHECK(glSamplerParameteri(sampler
, GL_TEXTURE_WRAP_R
, s_textureAddress[(_flags&BGFX_SAMPLER_W_MASK)>>BGFX_SAMPLER_W_SHIFT]
) );
GLenum minFilter;
GLenum magFilter;
getFilters(_flags, 1 < _numMips, magFilter, minFilter);
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_MAG_FILTER, magFilter) );
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_MIN_FILTER, minFilter) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
GL_CHECK(glSamplerParameterf(sampler, GL_TEXTURE_LOD_BIAS, float(BGFX_CONFIG_MIP_LOD_BIAS) ) );
}
if (m_borderColorSupport
&& hasBorderColor)
{
GL_CHECK(glSamplerParameterfv(sampler, GL_TEXTURE_BORDER_COLOR, _rgba) );
}
if (0 != (_flags & (BGFX_SAMPLER_MIN_ANISOTROPIC|BGFX_SAMPLER_MAG_ANISOTROPIC) )
&& 0.0f < m_maxAnisotropy)
{
GL_CHECK(glSamplerParameterf(sampler, GL_TEXTURE_MAX_ANISOTROPY_EXT, m_maxAnisotropy) );
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| m_shadowSamplersSupport)
{
const uint32_t cmpFunc = (_flags&BGFX_SAMPLER_COMPARE_MASK)>>BGFX_SAMPLER_COMPARE_SHIFT;
if (0 == cmpFunc)
{
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_MODE, GL_NONE) );
}
else
{
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE) );
GL_CHECK(glSamplerParameteri(sampler, GL_TEXTURE_COMPARE_FUNC, s_cmpFunc[cmpFunc]) );
}
}
}
GL_CHECK(glBindSampler(_stage, sampler) );
}
else
{
GL_CHECK(glBindSampler(_stage, 0) );
}
}
}
bool isVisible(Frame* _render, OcclusionQueryHandle _handle, bool _visible)
{
m_occlusionQuery.resolve(_render);
return _visible == (0 != _render->m_occlusion[_handle.idx]);
}
void updateCapture()
{
if (m_resolution.reset&BGFX_RESET_CAPTURE)
{
m_captureSize = m_resolution.width*m_resolution.height*4;
m_capture = BX_REALLOC(g_allocator, m_capture, m_captureSize);
g_callback->captureBegin(m_resolution.width, m_resolution.height, m_resolution.width*4, TextureFormat::BGRA8, true);
}
else
{
captureFinish();
}
}
void capture()
{
if (NULL != m_capture)
{
GL_CHECK(glReadPixels(0
, 0
, m_resolution.width
, m_resolution.height
, m_readPixelsFmt
, GL_UNSIGNED_BYTE
, m_capture
) );
if (GL_RGBA == m_readPixelsFmt)
{
bimg::imageSwizzleBgra8(
m_capture
, m_resolution.width*4
, m_resolution.width
, m_resolution.height
, m_capture
, m_resolution.width*4
);
}
g_callback->captureFrame(m_capture, m_captureSize);
}
}
void captureFinish()
{
if (NULL != m_capture)
{
g_callback->captureEnd();
BX_FREE(g_allocator, m_capture);
m_capture = NULL;
m_captureSize = 0;
}
}
bool programFetchFromCache(GLuint programId, uint64_t _id)
{
_id ^= m_hash;
bool cached = false;
if (m_programBinarySupport)
{
uint32_t length = g_callback->cacheReadSize(_id);
cached = length > 0;
if (cached)
{
void* data = BX_ALLOC(g_allocator, length);
if (g_callback->cacheRead(_id, data, length) )
{
bx::MemoryReader reader(data, length);
GLenum format;
bx::read(&reader, format);
GL_CHECK(glProgramBinary(programId, format, reader.getDataPtr(), (GLsizei)reader.remaining() ) );
}
BX_FREE(g_allocator, data);
}
#if BGFX_CONFIG_RENDERER_OPENGL
GL_CHECK(glProgramParameteri(programId, GL_PROGRAM_BINARY_RETRIEVABLE_HINT, GL_TRUE) );
#endif // BGFX_CONFIG_RENDERER_OPENGL
}
return cached;
}
void programCache(GLuint programId, uint64_t _id)
{
_id ^= m_hash;
if (m_programBinarySupport)
{
GLint programLength;
GLenum format;
GL_CHECK(glGetProgramiv(programId, GL_PROGRAM_BINARY_LENGTH, &programLength) );
if (0 < programLength)
{
uint32_t length = programLength + 4;
uint8_t* data = (uint8_t*)BX_ALLOC(g_allocator, length);
GL_CHECK(glGetProgramBinary(programId, programLength, NULL, &format, &data[4]) );
*(uint32_t*)data = format;
g_callback->cacheWrite(_id, data, length);
BX_FREE(g_allocator, data);
}
}
}
void commit(UniformBuffer& _uniformBuffer)
{
_uniformBuffer.reset();
for (;;)
{
uint32_t opcode = _uniformBuffer.read();
if (UniformType::End == opcode)
{
break;
}
UniformType::Enum type;
uint16_t ignore;
uint16_t num;
uint16_t copy;
UniformBuffer::decodeOpcode(opcode, type, ignore, num, copy);
const char* data;
if (copy)
{
data = _uniformBuffer.read(g_uniformTypeSize[type]*num);
}
else
{
UniformHandle handle;
bx::memCopy(&handle, _uniformBuffer.read(sizeof(UniformHandle) ), sizeof(UniformHandle) );
data = (const char*)m_uniforms[handle.idx];
}
uint32_t loc = _uniformBuffer.read();
#define CASE_IMPLEMENT_UNIFORM(_uniform, _glsuffix, _dxsuffix, _type) \
case UniformType::_uniform: \
{ \
_type* value = (_type*)data; \
GL_CHECK(glUniform##_glsuffix(loc, num, value) ); \
} \
break;
#define CASE_IMPLEMENT_UNIFORM_T(_uniform, _glsuffix, _dxsuffix, _type) \
case UniformType::_uniform: \
{ \
_type* value = (_type*)data; \
GL_CHECK(glUniform##_glsuffix(loc, num, GL_FALSE, value) ); \
} \
break;
switch (type)
{
CASE_IMPLEMENT_UNIFORM(Sampler, 1iv, I, int);
CASE_IMPLEMENT_UNIFORM(Vec4, 4fv, F, float);
CASE_IMPLEMENT_UNIFORM_T(Mat3, Matrix3fv, F, float);
CASE_IMPLEMENT_UNIFORM_T(Mat4, Matrix4fv, F, float);
case UniformType::End:
break;
default:
BX_TRACE("%4d: INVALID 0x%08x, t %d, l %d, n %d, c %d", _uniformBuffer.getPos(), opcode, type, loc, num, copy);
break;
}
#undef CASE_IMPLEMENT_UNIFORM
#undef CASE_IMPLEMENT_UNIFORM_T
}
}
void clearQuad(ClearQuad& _clearQuad, const Rect& _rect, const Clear& _clear, uint32_t _height, const float _palette[][4])
{
uint32_t numMrt = 1;
FrameBufferHandle fbh = m_fbh;
if (isValid(fbh) )
{
const FrameBufferGL& fb = m_frameBuffers[fbh.idx];
numMrt = bx::uint32_max(1, fb.m_num);
}
if (1 == numMrt)
{
GLuint flags = 0;
if (BGFX_CLEAR_COLOR & _clear.m_flags)
{
if (BGFX_CLEAR_COLOR_USE_PALETTE & _clear.m_flags)
{
uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE-1, _clear.m_index[0]);
const float* rgba = _palette[index];
const float rr = rgba[0];
const float gg = rgba[1];
const float bb = rgba[2];
const float aa = rgba[3];
GL_CHECK(glClearColor(rr, gg, bb, aa) );
}
else
{
float rr = _clear.m_index[0]*1.0f/255.0f;
float gg = _clear.m_index[1]*1.0f/255.0f;
float bb = _clear.m_index[2]*1.0f/255.0f;
float aa = _clear.m_index[3]*1.0f/255.0f;
GL_CHECK(glClearColor(rr, gg, bb, aa) );
}
flags |= GL_COLOR_BUFFER_BIT;
GL_CHECK(glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE) );
}
if (BGFX_CLEAR_DEPTH & _clear.m_flags)
{
flags |= GL_DEPTH_BUFFER_BIT;
GL_CHECK(glClearDepth(_clear.m_depth) );
GL_CHECK(glDepthMask(GL_TRUE) );
}
if (BGFX_CLEAR_STENCIL & _clear.m_flags)
{
flags |= GL_STENCIL_BUFFER_BIT;
GL_CHECK(glClearStencil(_clear.m_stencil) );
}
if (0 != flags)
{
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(_rect.m_x, _height-_rect.m_height-_rect.m_y, _rect.m_width, _rect.m_height) );
GL_CHECK(glClear(flags) );
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
}
}
else
{
const GLuint defaultVao = m_vao;
if (0 != defaultVao)
{
GL_CHECK(glBindVertexArray(defaultVao) );
}
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
GL_CHECK(glDisable(GL_CULL_FACE) );
GL_CHECK(glDisable(GL_BLEND) );
GLboolean colorMask = !!(BGFX_CLEAR_COLOR & _clear.m_flags);
GL_CHECK(glColorMask(colorMask, colorMask, colorMask, colorMask) );
if (BGFX_CLEAR_DEPTH & _clear.m_flags)
{
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_ALWAYS) );
GL_CHECK(glDepthMask(GL_TRUE) );
}
else
{
GL_CHECK(glDisable(GL_DEPTH_TEST) );
}
if (BGFX_CLEAR_STENCIL & _clear.m_flags)
{
GL_CHECK(glEnable(GL_STENCIL_TEST) );
GL_CHECK(glStencilFuncSeparate(GL_FRONT_AND_BACK, GL_ALWAYS, _clear.m_stencil, 0xff) );
GL_CHECK(glStencilOpSeparate(GL_FRONT_AND_BACK, GL_REPLACE, GL_REPLACE, GL_REPLACE) );
}
else
{
GL_CHECK(glDisable(GL_STENCIL_TEST) );
}
VertexBufferGL& vb = m_vertexBuffers[_clearQuad.m_vb.idx];
VertexLayout& layout = _clearQuad.m_layout;
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, vb.m_id) );
ProgramGL& program = m_program[_clearQuad.m_program[numMrt-1].idx];
GL_CHECK(glUseProgram(program.m_id) );
program.bindAttributesBegin();
program.bindAttributes(layout, 0);
program.bindAttributesEnd();
if (m_clearQuadColor.idx == kInvalidHandle)
{
const UniformRegInfo* infoClearColor = m_uniformReg.find("bgfx_clear_color");
if (NULL != infoClearColor)
m_clearQuadColor = infoClearColor->m_handle;
}
if (m_clearQuadDepth.idx == kInvalidHandle)
{
const UniformRegInfo* infoClearDepth = m_uniformReg.find("bgfx_clear_depth");
if (NULL != infoClearDepth)
m_clearQuadDepth = infoClearDepth->m_handle;
}
float mrtClearDepth[4] = { g_caps.homogeneousDepth ? (_clear.m_depth * 2.0f - 1.0f) : _clear.m_depth };
updateUniform(m_clearQuadDepth.idx, mrtClearDepth, sizeof(float)*4);
float mrtClearColor[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS][4];
if (BGFX_CLEAR_COLOR_USE_PALETTE & _clear.m_flags)
{
for (uint32_t ii = 0; ii < numMrt; ++ii)
{
uint8_t index = (uint8_t)bx::uint32_min(BGFX_CONFIG_MAX_COLOR_PALETTE-1, _clear.m_index[ii]);
bx::memCopy(mrtClearColor[ii], _palette[index], 16);
}
}
else
{
float rgba[4] =
{
_clear.m_index[0] * 1.0f / 255.0f,
_clear.m_index[1] * 1.0f / 255.0f,
_clear.m_index[2] * 1.0f / 255.0f,
_clear.m_index[3] * 1.0f / 255.0f,
};
for (uint32_t ii = 0; ii < numMrt; ++ii)
{
bx::memCopy(mrtClearColor[ii], rgba, 16);
}
}
updateUniform(m_clearQuadColor.idx, mrtClearColor[0], numMrt * sizeof(float) * 4);
commit(*program.m_constantBuffer);
GL_CHECK(glDrawArrays(GL_TRIANGLE_STRIP
, 0
, 4
) );
}
}
void* m_renderdocdll;
uint16_t m_numWindows;
FrameBufferHandle m_windows[BGFX_CONFIG_MAX_FRAME_BUFFERS];
IndexBufferGL m_indexBuffers[BGFX_CONFIG_MAX_INDEX_BUFFERS];
VertexBufferGL m_vertexBuffers[BGFX_CONFIG_MAX_VERTEX_BUFFERS];
ShaderGL m_shaders[BGFX_CONFIG_MAX_SHADERS];
ProgramGL m_program[BGFX_CONFIG_MAX_PROGRAMS];
TextureGL m_textures[BGFX_CONFIG_MAX_TEXTURES];
VertexLayout m_vertexLayouts[BGFX_CONFIG_MAX_VERTEX_LAYOUTS];
FrameBufferGL m_frameBuffers[BGFX_CONFIG_MAX_FRAME_BUFFERS];
UniformRegistry m_uniformReg;
void* m_uniforms[BGFX_CONFIG_MAX_UNIFORMS];
TimerQueryGL m_gpuTimer;
OcclusionQueryGL m_occlusionQuery;
SamplerStateCache m_samplerStateCache;
TextVideoMem m_textVideoMem;
bool m_rtMsaa;
FrameBufferHandle m_fbh;
uint16_t m_fbDiscard;
Resolution m_resolution;
void* m_capture;
uint32_t m_captureSize;
float m_maxAnisotropy;
float m_maxAnisotropyDefault;
int32_t m_maxMsaa;
GLuint m_vao;
uint16_t m_maxLabelLen;
bool m_blitSupported;
bool m_readBackSupported;
bool m_vaoSupport;
bool m_samplerObjectSupport;
bool m_shadowSamplersSupport;
bool m_srgbWriteControlSupport;
bool m_borderColorSupport;
bool m_programBinarySupport;
bool m_textureSwizzleSupport;
bool m_depthTextureSupport;
bool m_timerQuerySupport;
bool m_occlusionQuerySupport;
bool m_atocSupport;
bool m_conservativeRasterSupport;
bool m_imageLoadStoreSupport;
bool m_flip;
uint64_t m_hash;
GLenum m_readPixelsFmt;
GLuint m_backBufferFbo;
GLuint m_msaaBackBufferFbo;
GLuint m_msaaBackBufferRbos[2];
GlContext m_glctx;
bool m_needPresent;
UniformHandle m_clearQuadColor;
UniformHandle m_clearQuadDepth;
const char* m_vendor;
const char* m_renderer;
const char* m_version;
const char* m_glslVersion;
Workaround m_workaround;
GLuint m_currentFbo;
};
RendererContextGL* s_renderGL;
RendererContextI* rendererCreate(const Init& _init)
{
s_renderGL = BX_NEW(g_allocator, RendererContextGL);
if (!s_renderGL->init(_init) )
{
BX_DELETE(g_allocator, s_renderGL);
s_renderGL = NULL;
}
return s_renderGL;
}
void rendererDestroy()
{
s_renderGL->shutdown();
BX_DELETE(g_allocator, s_renderGL);
s_renderGL = NULL;
}
static void frameBufferValidate()
{
GLenum complete = glCheckFramebufferStatus(GL_FRAMEBUFFER);
BX_CHECK(GL_FRAMEBUFFER_COMPLETE == complete
, "glCheckFramebufferStatus failed 0x%08x: %s"
, complete
, glEnumName(complete)
);
BX_UNUSED(complete);
}
const char* glslTypeName(GLuint _type)
{
#define GLSL_TYPE(_ty) case _ty: return #_ty
switch (_type)
{
GLSL_TYPE(GL_BOOL);
GLSL_TYPE(GL_INT);
GLSL_TYPE(GL_INT_VEC2);
GLSL_TYPE(GL_INT_VEC3);
GLSL_TYPE(GL_INT_VEC4);
GLSL_TYPE(GL_UNSIGNED_INT);
GLSL_TYPE(GL_UNSIGNED_INT_VEC2);
GLSL_TYPE(GL_UNSIGNED_INT_VEC3);
GLSL_TYPE(GL_UNSIGNED_INT_VEC4);
GLSL_TYPE(GL_FLOAT);
GLSL_TYPE(GL_FLOAT_VEC2);
GLSL_TYPE(GL_FLOAT_VEC3);
GLSL_TYPE(GL_FLOAT_VEC4);
GLSL_TYPE(GL_FLOAT_MAT2);
GLSL_TYPE(GL_FLOAT_MAT3);
GLSL_TYPE(GL_FLOAT_MAT4);
GLSL_TYPE(GL_SAMPLER_2D);
GLSL_TYPE(GL_SAMPLER_2D_ARRAY);
GLSL_TYPE(GL_SAMPLER_2D_MULTISAMPLE);
GLSL_TYPE(GL_INT_SAMPLER_2D);
GLSL_TYPE(GL_INT_SAMPLER_2D_ARRAY);
GLSL_TYPE(GL_INT_SAMPLER_2D_MULTISAMPLE);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_2D);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_2D_ARRAY);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE);
GLSL_TYPE(GL_SAMPLER_2D_SHADOW);
GLSL_TYPE(GL_SAMPLER_2D_ARRAY_SHADOW);
GLSL_TYPE(GL_SAMPLER_3D);
GLSL_TYPE(GL_INT_SAMPLER_3D);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_3D);
GLSL_TYPE(GL_SAMPLER_CUBE);
GLSL_TYPE(GL_INT_SAMPLER_CUBE);
GLSL_TYPE(GL_UNSIGNED_INT_SAMPLER_CUBE);
GLSL_TYPE(GL_IMAGE_1D);
GLSL_TYPE(GL_INT_IMAGE_1D);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_1D);
GLSL_TYPE(GL_IMAGE_2D);
GLSL_TYPE(GL_IMAGE_2D_ARRAY);
GLSL_TYPE(GL_INT_IMAGE_2D);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_2D);
GLSL_TYPE(GL_IMAGE_3D);
GLSL_TYPE(GL_INT_IMAGE_3D);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_3D);
GLSL_TYPE(GL_IMAGE_CUBE);
GLSL_TYPE(GL_INT_IMAGE_CUBE);
GLSL_TYPE(GL_UNSIGNED_INT_IMAGE_CUBE);
case 0x8D65: return "GL_TEXTURE_EXTERNAL_OES";
case 0x8D66: return "GL_TEXTURE_SAMPLER_EXTERNAL_OES";
}
#undef GLSL_TYPE
BX_CHECK(false, "Unknown GLSL type? %x", _type);
return "UNKNOWN GLSL TYPE!";
}
const char* glEnumName(GLenum _enum)
{
#define GLENUM(_ty) case _ty: return #_ty
switch (_enum)
{
GLENUM(GL_TEXTURE);
GLENUM(GL_RENDERBUFFER);
GLENUM(GL_INVALID_ENUM);
GLENUM(GL_INVALID_FRAMEBUFFER_OPERATION);
GLENUM(GL_INVALID_VALUE);
GLENUM(GL_INVALID_OPERATION);
GLENUM(GL_OUT_OF_MEMORY);
GLENUM(GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT);
GLENUM(GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT);
// GLENUM(GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER);
// GLENUM(GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER);
GLENUM(GL_FRAMEBUFFER_UNSUPPORTED);
}
#undef GLENUM
BX_WARN(false, "Unknown enum? %x", _enum);
return "<GLenum?>";
}
UniformType::Enum convertGlType(GLenum _type)
{
switch (_type)
{
case GL_INT:
case GL_UNSIGNED_INT:
return UniformType::Sampler;
case GL_FLOAT:
case GL_FLOAT_VEC2:
case GL_FLOAT_VEC3:
case GL_FLOAT_VEC4:
return UniformType::Vec4;
case GL_FLOAT_MAT2:
break;
case GL_FLOAT_MAT3:
return UniformType::Mat3;
case GL_FLOAT_MAT4:
return UniformType::Mat4;
case GL_SAMPLER_2D:
case GL_SAMPLER_2D_ARRAY:
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D:
case GL_INT_SAMPLER_2D_ARRAY:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D:
case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
case GL_SAMPLER_2D_SHADOW:
case GL_SAMPLER_2D_ARRAY_SHADOW:
case GL_SAMPLER_3D:
case GL_INT_SAMPLER_3D:
case GL_UNSIGNED_INT_SAMPLER_3D:
case GL_SAMPLER_CUBE:
case GL_INT_SAMPLER_CUBE:
case GL_UNSIGNED_INT_SAMPLER_CUBE:
case GL_IMAGE_1D:
case GL_INT_IMAGE_1D:
case GL_UNSIGNED_INT_IMAGE_1D:
case GL_IMAGE_2D:
case GL_IMAGE_2D_ARRAY:
case GL_INT_IMAGE_2D:
case GL_UNSIGNED_INT_IMAGE_2D:
case GL_IMAGE_3D:
case GL_INT_IMAGE_3D:
case GL_UNSIGNED_INT_IMAGE_3D:
case GL_IMAGE_CUBE:
case GL_INT_IMAGE_CUBE:
case GL_UNSIGNED_INT_IMAGE_CUBE:
case 0x8D66: // external OES
return UniformType::Sampler;
};
BX_CHECK(false, "Unrecognized GL type 0x%04x.", _type);
return UniformType::End;
}
void ProgramGL::create(const ShaderGL& _vsh, const ShaderGL& _fsh)
{
m_id = glCreateProgram();
BX_TRACE("Program create: GL%d: GL%d, GL%d", m_id, _vsh.m_id, _fsh.m_id);
const uint64_t id = (uint64_t(_vsh.m_hash)<<32) | _fsh.m_hash;
const bool cached = s_renderGL->programFetchFromCache(m_id, id);
if (!cached)
{
GLint linked = 0;
if (0 != _vsh.m_id)
{
GL_CHECK(glAttachShader(m_id, _vsh.m_id) );
if (0 != _fsh.m_id)
{
GL_CHECK(glAttachShader(m_id, _fsh.m_id) );
}
GL_CHECK(glLinkProgram(m_id) );
GL_CHECK(glGetProgramiv(m_id, GL_LINK_STATUS, &linked) );
if (0 == linked)
{
char log[1024];
GL_CHECK(glGetProgramInfoLog(m_id, sizeof(log), NULL, log) );
BX_TRACE("%d: %s", linked, log);
}
}
if (0 == linked)
{
BX_WARN(0 != _vsh.m_id, "Invalid vertex/compute shader.");
GL_CHECK(glDeleteProgram(m_id) );
m_usedCount = 0;
m_id = 0;
return;
}
s_renderGL->programCache(m_id, id);
}
init();
if (!cached
&& s_renderGL->m_workaround.m_detachShader)
{
// Must be after init, otherwise init might fail to lookup shader
// info (NVIDIA Tegra 3 OpenGL ES 2.0 14.01003).
GL_CHECK(glDetachShader(m_id, _vsh.m_id) );
if (0 != _fsh.m_id)
{
GL_CHECK(glDetachShader(m_id, _fsh.m_id) );
}
}
}
void ProgramGL::destroy()
{
if (NULL != m_constantBuffer)
{
UniformBuffer::destroy(m_constantBuffer);
m_constantBuffer = NULL;
}
m_numPredefined = 0;
if (0 != m_id)
{
GL_CHECK(glUseProgram(0) );
GL_CHECK(glDeleteProgram(m_id) );
m_id = 0;
}
}
void ProgramGL::init()
{
GLint activeAttribs = 0;
GLint activeUniforms = 0;
GLint activeBuffers = 0;
#if BGFX_CONFIG_RENDERER_OPENGL >= 31
GL_CHECK(glBindFragDataLocation(m_id, 0, "bgfx_FragColor") );
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 31
GLint max0, max1;
bool piqSupported = true
&& s_extension[Extension::ARB_program_interface_query ].m_supported
&& s_extension[Extension::ARB_shader_storage_buffer_object].m_supported
;
if (piqSupported)
{
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_PROGRAM_INPUT, GL_ACTIVE_RESOURCES, &activeAttribs ) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_UNIFORM, GL_ACTIVE_RESOURCES, &activeUniforms) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_BUFFER_VARIABLE, GL_ACTIVE_RESOURCES, &activeBuffers ) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_PROGRAM_INPUT, GL_MAX_NAME_LENGTH, &max0 ) );
GL_CHECK(glGetProgramInterfaceiv(m_id, GL_UNIFORM, GL_MAX_NAME_LENGTH, &max1 ) );
}
else
{
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_ATTRIBUTES, &activeAttribs ) );
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_UNIFORMS, &activeUniforms) );
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, &max0) );
GL_CHECK(glGetProgramiv(m_id, GL_ACTIVE_UNIFORM_MAX_LENGTH, &max1) );
}
uint32_t maxLength = bx::uint32_max(max0, max1);
char* name = (char*)alloca(maxLength + 1);
BX_TRACE("Program %d", m_id);
BX_TRACE("Attributes (%d):", activeAttribs);
for (int32_t ii = 0; ii < activeAttribs; ++ii)
{
GLint size;
GLenum type = 0;
if (piqSupported)
{
GL_CHECK(glGetProgramResourceName(m_id, GL_PROGRAM_INPUT, ii, maxLength + 1, &size, name) );
GLenum typeProp[] = { GL_TYPE };
GL_CHECK(glGetProgramResourceiv(m_id
, GL_PROGRAM_INPUT
, ii
, BX_COUNTOF(typeProp)
, typeProp
, 1
, NULL
, (GLint *)&type)
);
}
else
{
GL_CHECK(glGetActiveAttrib(m_id, ii, maxLength + 1, NULL, &size, &type, name) );
}
BX_TRACE("\t%s %s is at location %d"
, glslTypeName(type)
, name
, glGetAttribLocation(m_id, name)
);
}
m_numPredefined = 0;
m_numSamplers = 0;
BX_TRACE("Uniforms (%d):", activeUniforms);
for (int32_t ii = 0; ii < activeUniforms; ++ii)
{
struct VariableInfo
{
GLenum type;
GLint loc;
GLint num;
};
VariableInfo vi;
GLenum props[] = { GL_TYPE, GL_LOCATION, GL_ARRAY_SIZE };
GLenum gltype;
GLint num;
GLint loc;
if (piqSupported)
{
GL_CHECK(glGetProgramResourceiv(m_id
, GL_UNIFORM
, ii
, BX_COUNTOF(props)
, props
, BX_COUNTOF(props)
, NULL
, (GLint*)&vi
) );
GL_CHECK(glGetProgramResourceName(m_id
, GL_UNIFORM
, ii
, maxLength + 1
, NULL
, name
) );
gltype = vi.type;
loc = vi.loc;
num = vi.num;
}
else
{
GL_CHECK(glGetActiveUniform(m_id, ii, maxLength + 1, NULL, &num, &gltype, name) );
loc = glGetUniformLocation(m_id, name);
}
num = bx::uint32_max(num, 1);
int32_t offset = 0;
const bx::StringView array = bx::strFind(name, '[');
if (!array.isEmpty() )
{
name[array.getPtr() - name] = '\0';
BX_TRACE("--- %s", name);
const bx::StringView end = bx::strFind(array.getPtr()+1, ']');
bx::fromString(&offset, bx::StringView(array.getPtr()+1, end.getPtr() ) );
}
switch (gltype)
{
case GL_SAMPLER_2D:
case GL_SAMPLER_2D_ARRAY:
case GL_SAMPLER_2D_MULTISAMPLE:
case GL_INT_SAMPLER_2D:
case GL_INT_SAMPLER_2D_ARRAY:
case GL_INT_SAMPLER_2D_MULTISAMPLE:
case GL_UNSIGNED_INT_SAMPLER_2D:
case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE:
case GL_SAMPLER_2D_SHADOW:
case GL_SAMPLER_2D_ARRAY_SHADOW:
case GL_SAMPLER_3D:
case GL_INT_SAMPLER_3D:
case GL_UNSIGNED_INT_SAMPLER_3D:
case GL_SAMPLER_CUBE:
case GL_INT_SAMPLER_CUBE:
case GL_UNSIGNED_INT_SAMPLER_CUBE:
case GL_IMAGE_1D:
case GL_INT_IMAGE_1D:
case GL_UNSIGNED_INT_IMAGE_1D:
case GL_IMAGE_2D:
case GL_INT_IMAGE_2D:
case GL_UNSIGNED_INT_IMAGE_2D:
case GL_IMAGE_3D:
case GL_INT_IMAGE_3D:
case GL_UNSIGNED_INT_IMAGE_3D:
case GL_IMAGE_CUBE:
case GL_INT_IMAGE_CUBE:
case GL_UNSIGNED_INT_IMAGE_CUBE:
if (m_numSamplers < BX_COUNTOF(m_sampler) )
{
BX_TRACE("Sampler #%d at location %d.", m_numSamplers, loc);
m_sampler[m_numSamplers] = loc;
m_numSamplers++;
}
else
{
BX_TRACE("Too many samplers (max: %d)! Sampler at location %d."
, BX_COUNTOF(m_sampler)
, loc
);
}
break;
default:
break;
}
PredefinedUniform::Enum predefined = nameToPredefinedUniformEnum(name);
if (PredefinedUniform::Count != predefined)
{
m_predefined[m_numPredefined].m_loc = loc;
m_predefined[m_numPredefined].m_count = uint16_t(num);
m_predefined[m_numPredefined].m_type = uint8_t(predefined);
m_numPredefined++;
}
else
{
const UniformRegInfo* info = s_renderGL->m_uniformReg.find(name);
BX_WARN(NULL != info, "User defined uniform '%s' is not found, it won't be set.", name);
if (NULL != info)
{
if (NULL == m_constantBuffer)
{
m_constantBuffer = UniformBuffer::create(1024);
}
UniformType::Enum type = convertGlType(gltype);
m_constantBuffer->writeUniformHandle(type, 0, info->m_handle, uint16_t(num) );
m_constantBuffer->write(loc);
BX_TRACE("store %s %d", name, info->m_handle);
}
}
BX_TRACE("\tuniform %s %s%s is at location %d, size %d, offset %d"
, glslTypeName(gltype)
, name
, PredefinedUniform::Count != predefined ? "*" : ""
, loc
, num
, offset
);
BX_UNUSED(offset);
}
if (NULL != m_constantBuffer)
{
m_constantBuffer->finish();
}
if (piqSupported)
{
struct VariableInfo
{
GLenum type;
};
VariableInfo vi;
GLenum props[] = { GL_TYPE };
BX_TRACE("Buffers (%d):", activeBuffers);
for (int32_t ii = 0; ii < activeBuffers; ++ii)
{
GL_CHECK(glGetProgramResourceiv(m_id
, GL_BUFFER_VARIABLE
, ii
, BX_COUNTOF(props)
, props
, BX_COUNTOF(props)
, NULL
, (GLint*)&vi
) );
GL_CHECK(glGetProgramResourceName(m_id
, GL_BUFFER_VARIABLE
, ii
, maxLength + 1
, NULL
, name
) );
BX_TRACE("\t%s %s at %d"
, glslTypeName(vi.type)
, name
, 0 //vi.loc
);
}
}
bx::memSet(m_attributes, 0xff, sizeof(m_attributes) );
uint32_t used = 0;
for (uint8_t ii = 0; ii < Attrib::Count; ++ii)
{
GLint loc = glGetAttribLocation(m_id, s_attribName[ii]);
if (-1 != loc)
{
BX_TRACE("attr %s: %d", s_attribName[ii], loc);
m_attributes[ii] = loc;
m_used[used++] = ii;
}
}
BX_CHECK(used < BX_COUNTOF(m_used), "Out of bounds %d > array size %d.", used, Attrib::Count);
m_usedCount = (uint8_t)used;
used = 0;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_instanceDataName); ++ii)
{
GLuint loc = glGetAttribLocation(m_id, s_instanceDataName[ii]);
if (GLuint(-1) != loc )
{
BX_TRACE("instance data %s: %d", s_instanceDataName[ii], loc);
m_instanceData[used++] = loc;
}
}
BX_CHECK(used < BX_COUNTOF(m_instanceData), "Out of bounds %d > array size %d."
, used
, BX_COUNTOF(m_instanceData)
);
m_instanceData[used] = 0xffff;
}
void ProgramGL::bindAttributes(const VertexLayout& _layout, uint32_t _baseVertex)
{
for (uint32_t ii = 0, iiEnd = m_usedCount; ii < iiEnd; ++ii)
{
Attrib::Enum attr = Attrib::Enum(m_used[ii]);
GLint loc = m_attributes[attr];
uint8_t num;
AttribType::Enum type;
bool normalized;
bool asInt;
_layout.decode(attr, num, type, normalized, asInt);
if (-1 != loc)
{
if (UINT16_MAX != _layout.m_attributes[attr])
{
GL_CHECK(glEnableVertexAttribArray(loc) );
GL_CHECK(glVertexAttribDivisor(loc, 0) );
uint32_t baseVertex = _baseVertex*_layout.m_stride + _layout.m_offset[attr];
if ( (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL >= 30) || BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 31) )
&& (AttribType::Uint8 == type || AttribType::Int16 == type)
&& !normalized)
{
GL_CHECK(glVertexAttribIPointer(loc
, num
, s_attribType[type]
, _layout.m_stride
, (void*)(uintptr_t)baseVertex)
);
}
else
{
GL_CHECK(glVertexAttribPointer(loc
, num
, s_attribType[type]
, normalized
, _layout.m_stride
, (void*)(uintptr_t)baseVertex)
);
}
m_unboundUsedAttrib[ii] = Attrib::Count;
}
}
}
}
void ProgramGL::unbindAttributes()
{
for(uint32_t ii = 0, iiEnd = m_usedCount; ii < iiEnd; ++ii)
{
if(Attrib::Count == m_unboundUsedAttrib[ii])
{
Attrib::Enum attr = Attrib::Enum(m_used[ii]);
GLint loc = m_attributes[attr];
GL_CHECK(glDisableVertexAttribArray(loc));
}
}
}
void ProgramGL::bindInstanceData(uint32_t _stride, uint32_t _baseVertex) const
{
uint32_t baseVertex = _baseVertex;
for (uint32_t ii = 0; 0xffff != m_instanceData[ii]; ++ii)
{
GLint loc = m_instanceData[ii];
GL_CHECK(glEnableVertexAttribArray(loc) );
GL_CHECK(glVertexAttribPointer(loc, 4, GL_FLOAT, GL_FALSE, _stride, (void*)(uintptr_t)baseVertex) );
GL_CHECK(glVertexAttribDivisor(loc, 1) );
baseVertex += 16;
}
}
void ProgramGL::unbindInstanceData() const
{
for(uint32_t ii = 0; 0xffff != m_instanceData[ii]; ++ii)
{
GLint loc = m_instanceData[ii];
GL_CHECK(glDisableVertexAttribArray(loc));
}
}
void IndexBufferGL::destroy()
{
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0) );
GL_CHECK(glDeleteBuffers(1, &m_id) );
}
void VertexBufferGL::destroy()
{
GL_CHECK(glBindBuffer(m_target, 0) );
GL_CHECK(glDeleteBuffers(1, &m_id) );
}
bool TextureGL::init(GLenum _target, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, uint64_t _flags)
{
m_target = _target;
m_numMips = _numMips;
m_flags = _flags;
m_width = _width;
m_height = _height;
m_depth = _depth;
m_currentSamplerHash = UINT32_MAX;
const bool writeOnly = 0 != (m_flags&BGFX_TEXTURE_RT_WRITE_ONLY);
const bool computeWrite = 0 != (m_flags&BGFX_TEXTURE_COMPUTE_WRITE );
const bool srgb = 0 != (m_flags&BGFX_TEXTURE_SRGB);
const bool textureArray = false
|| _target == GL_TEXTURE_2D_ARRAY
|| _target == GL_TEXTURE_CUBE_MAP_ARRAY
;
if (!writeOnly)
{
GL_CHECK(glGenTextures(1, &m_id) );
BX_CHECK(0 != m_id, "Failed to generate texture id.");
GL_CHECK(glBindTexture(_target, m_id) );
GL_CHECK(glPixelStorei(GL_UNPACK_ALIGNMENT, 1) );
const TextureFormatInfo& tfi = s_textureFormat[m_textureFormat];
m_fmt = tfi.m_fmt;
m_type = tfi.m_type;
const bool swizzle = true
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& !s_renderGL->m_textureSwizzleSupport
;
const bool convert = false
|| m_textureFormat != m_requestedFormat
|| swizzle
;
if (convert)
{
m_textureFormat = (uint8_t)TextureFormat::RGBA8;
const TextureFormatInfo& tfiRgba8 = s_textureFormat[TextureFormat::RGBA8];
m_fmt = tfiRgba8.m_fmt;
m_type = tfiRgba8.m_type;
}
const GLenum internalFmt = srgb
? s_textureFormat[m_textureFormat].m_internalFmtSrgb
: s_textureFormat[m_textureFormat].m_internalFmt
;
if (textureArray)
{
GL_CHECK(glTexStorage3D(_target
, _numMips
, internalFmt
, m_width
, m_height
, _depth
) );
}
else if (computeWrite)
{
if (_target == GL_TEXTURE_3D)
{
GL_CHECK(glTexStorage3D(_target
, _numMips
, internalFmt
, m_width
, m_height
, _depth
) );
}
else
{
GL_CHECK(glTexStorage2D(_target
, _numMips
, internalFmt
, m_width
, m_height
) );
}
}
setSamplerState(uint32_t(_flags), NULL);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& s_renderGL->m_textureSwizzleSupport)
{
GLint swizzleMask[] = { GL_BLUE, GL_GREEN, GL_RED, GL_ALPHA };
GL_CHECK(glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_SWIZZLE_RGBA, swizzleMask) );
}
}
const bool renderTarget = 0 != (m_flags&BGFX_TEXTURE_RT_MASK);
if (renderTarget)
{
uint32_t msaaQuality = ( (m_flags&BGFX_TEXTURE_RT_MSAA_MASK)>>BGFX_TEXTURE_RT_MSAA_SHIFT);
msaaQuality = bx::uint32_satsub(msaaQuality, 1);
msaaQuality = bx::uint32_min(s_renderGL->m_maxMsaa, msaaQuality == 0 ? 0 : 1<<msaaQuality);
const bool msaaSample = 0 != (m_flags&BGFX_TEXTURE_MSAA_SAMPLE);
if (!msaaSample
&& (0 != msaaQuality || writeOnly) )
{
GL_CHECK(glGenRenderbuffers(1, &m_rbo) );
BX_CHECK(0 != m_rbo, "Failed to generate renderbuffer id.");
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, m_rbo) );
if (0 == msaaQuality)
{
GL_CHECK(glRenderbufferStorage(GL_RENDERBUFFER
, s_rboFormat[m_textureFormat]
, _width
, _height
) );
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
GL_CHECK(glRenderbufferStorageMultisample(GL_RENDERBUFFER
, msaaQuality
, s_rboFormat[m_textureFormat]
, _width
, _height
) );
}
GL_CHECK(glBindRenderbuffer(GL_RENDERBUFFER, 0) );
if (writeOnly)
{
// This is render buffer, there is no sampling, no need
// to create texture.
return false;
}
}
}
return true;
}
void TextureGL::create(const Memory* _mem, uint64_t _flags, uint8_t _skip)
{
bimg::ImageContainer imageContainer;
if (bimg::imageParse(imageContainer, _mem->data, _mem->size) )
{
const uint8_t startLod = bx::min<uint8_t>(_skip, imageContainer.m_numMips-1);
bimg::TextureInfo ti;
bimg::imageGetSize(
&ti
, uint16_t(imageContainer.m_width >>startLod)
, uint16_t(imageContainer.m_height>>startLod)
, uint16_t(imageContainer.m_depth >>startLod)
, imageContainer.m_cubeMap
, 1 < imageContainer.m_numMips
, imageContainer.m_numLayers
, imageContainer.m_format
);
ti.numMips = bx::min<uint8_t>(imageContainer.m_numMips-startLod, ti.numMips);
m_requestedFormat = uint8_t(imageContainer.m_format);
m_textureFormat = uint8_t(getViableTextureFormat(imageContainer) );
const bool computeWrite = 0 != (_flags&BGFX_TEXTURE_COMPUTE_WRITE);
const bool srgb = 0 != (_flags&BGFX_TEXTURE_SRGB);
const bool msaaSample = 0 != (_flags&BGFX_TEXTURE_MSAA_SAMPLE);
uint32_t msaaQuality = ( (_flags&BGFX_TEXTURE_RT_MSAA_MASK)>>BGFX_TEXTURE_RT_MSAA_SHIFT);
msaaQuality = bx::uint32_satsub(msaaQuality, 1);
msaaQuality = bx::uint32_min(s_renderGL->m_maxMsaa, msaaQuality == 0 ? 0 : 1<<msaaQuality);
GLenum target = msaaSample ? GL_TEXTURE_2D_MULTISAMPLE : GL_TEXTURE_2D;
if (imageContainer.m_cubeMap)
{
target = GL_TEXTURE_CUBE_MAP;
}
else if (imageContainer.m_depth > 1)
{
target = GL_TEXTURE_3D;
}
const bool textureArray = 1 < ti.numLayers;
if (textureArray)
{
switch (target)
{
case GL_TEXTURE_CUBE_MAP: target = GL_TEXTURE_CUBE_MAP_ARRAY; break;
case GL_TEXTURE_2D_MULTISAMPLE: target = GL_TEXTURE_2D_MULTISAMPLE_ARRAY; break;
default: target = GL_TEXTURE_2D_ARRAY; break;
}
}
if (!init(target
, ti.width
, ti.height
, textureArray ? ti.numLayers : ti.depth
, ti.numMips
, _flags
) )
{
return;
}
m_numLayers = ti.numLayers;
target = isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X
: m_target
;
const GLenum internalFmt = srgb
? s_textureFormat[m_textureFormat].m_internalFmtSrgb
: s_textureFormat[m_textureFormat].m_internalFmt
;
const bool swizzle = true
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& !s_renderGL->m_textureSwizzleSupport
;
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(m_requestedFormat) );
const bool convert = false
|| m_textureFormat != m_requestedFormat
|| swizzle
;
BX_TRACE("Texture%-4s %3d: %s %s(requested: %s), layers %d, %dx%dx%d%s."
, imageContainer.m_cubeMap ? "Cube" : (1 < imageContainer.m_depth ? "3D" : "2D")
, this - s_renderGL->m_textures
, getName( (TextureFormat::Enum)m_textureFormat)
, srgb ? "+sRGB " : ""
, getName( (TextureFormat::Enum)m_requestedFormat)
, ti.numLayers
, ti.width
, ti.height
, imageContainer.m_cubeMap ? 6 : (1 < imageContainer.m_depth ? imageContainer.m_depth : 0)
, 0 != (m_flags&BGFX_TEXTURE_RT_MASK) ? " (render target)" : ""
);
BX_WARN(!convert, "Texture %s%s%s from %s to %s."
, swizzle ? "swizzle" : ""
, swizzle&&convert ? " and " : ""
, convert ? "convert" : ""
, getName( (TextureFormat::Enum)m_requestedFormat)
, getName( (TextureFormat::Enum)m_textureFormat)
);
uint8_t* temp = NULL;
if (convert)
{
temp = (uint8_t*)BX_ALLOC(g_allocator, ti.width*ti.height*4);
}
const uint16_t numSides = ti.numLayers * (imageContainer.m_cubeMap ? 6 : 1);
for (uint16_t side = 0; side < numSides; ++side)
{
uint32_t width = ti.width;
uint32_t height = ti.height;
uint32_t depth = ti.depth;
GLenum imageTarget = imageContainer.m_cubeMap && !textureArray
? target+side
: target
;
for (uint8_t lod = 0, num = ti.numMips; lod < num; ++lod)
{
width = bx::uint32_max(1, width);
height = bx::uint32_max(1, height);
depth = 1 < imageContainer.m_depth
? bx::uint32_max(1, depth)
: side
;
bimg::ImageMip mip;
if (bimg::imageGetRawData(imageContainer, side, lod+startLod, _mem->data, _mem->size, mip) )
{
if (compressed
&& !convert)
{
GL_CHECK(compressedTexImage(imageTarget
, lod
, internalFmt
, width
, height
, depth
, 0
, mip.m_size
, mip.m_data
) );
}
else
{
const uint8_t* data = mip.m_data;
if (convert)
{
imageDecodeToRgba8(
g_allocator
, temp
, mip.m_data
, mip.m_width
, mip.m_height
, mip.m_width*4
, mip.m_format
);
data = temp;
}
GL_CHECK(texImage(imageTarget
, msaaQuality
, lod
, internalFmt
, width
, height
, depth
, 0
, m_fmt
, m_type
, data
) );
}
}
else if (!computeWrite)
{
if (compressed)
{
uint32_t size = bx::max<uint32_t>(1, (width + 3)>>2)
* bx::max<uint32_t>(1, (height + 3)>>2)
* 4*4* bimg::getBitsPerPixel(bimg::TextureFormat::Enum(m_textureFormat) )/8
;
GL_CHECK(compressedTexImage(imageTarget
, lod
, internalFmt
, width
, height
, depth
, 0
, size
, NULL
) );
}
else
{
GL_CHECK(texImage(imageTarget
, msaaQuality
, lod
, internalFmt
, width
, height
, depth
, 0
, m_fmt
, m_type
, NULL
) );
}
}
width >>= 1;
height >>= 1;
depth >>= 1;
}
}
if (NULL != temp)
{
BX_FREE(g_allocator, temp);
}
}
GL_CHECK(glBindTexture(m_target, 0) );
}
void TextureGL::destroy()
{
if (0 == (m_flags & BGFX_SAMPLER_INTERNAL_SHARED)
&& 0 != m_id)
{
GL_CHECK(glBindTexture(m_target, 0) );
GL_CHECK(glDeleteTextures(1, &m_id) );
m_id = 0;
}
if (0 != m_rbo)
{
GL_CHECK(glDeleteRenderbuffers(1, &m_rbo) );
m_rbo = 0;
}
}
void TextureGL::overrideInternal(uintptr_t _ptr)
{
destroy();
m_target = 0x8D65; // GL_TEXTURE_EXTERNAL_OES
m_flags |= BGFX_SAMPLER_INTERNAL_SHARED;
m_id = (GLuint)_ptr;
}
void TextureGL::update(uint8_t _side, uint8_t _mip, const Rect& _rect, uint16_t _z, uint16_t _depth, uint16_t _pitch, const Memory* _mem)
{
const uint32_t bpp = bimg::getBitsPerPixel(bimg::TextureFormat::Enum(m_textureFormat) );
const uint32_t rectpitch = _rect.m_width*bpp/8;
uint32_t srcpitch = UINT16_MAX == _pitch ? rectpitch : _pitch;
GL_CHECK(glBindTexture(m_target, m_id) );
GL_CHECK(glPixelStorei(GL_UNPACK_ALIGNMENT, 1) );
GLenum target = isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X
: m_target
;
const bool swizzle = true
&& TextureFormat::BGRA8 == m_requestedFormat
&& !s_textureFormat[m_requestedFormat].m_supported
&& !s_renderGL->m_textureSwizzleSupport
;
const bool unpackRowLength = !!BGFX_CONFIG_RENDERER_OPENGL || s_extension[Extension::EXT_unpack_subimage].m_supported;
const bool compressed = bimg::isCompressed(bimg::TextureFormat::Enum(m_requestedFormat) );
const bool convert = false
|| (compressed && m_textureFormat != m_requestedFormat)
|| swizzle
;
const uint32_t width = _rect.m_width;
const uint32_t height = _rect.m_height;
uint8_t* temp = NULL;
if (convert
|| !unpackRowLength)
{
temp = (uint8_t*)BX_ALLOC(g_allocator, rectpitch*height);
}
else if (unpackRowLength)
{
GL_CHECK(glPixelStorei(GL_UNPACK_ROW_LENGTH, srcpitch*8/bpp) );
}
if (compressed)
{
const uint8_t* data = _mem->data;
if (!unpackRowLength)
{
bimg::imageCopy(temp, width, height, 1, bpp, srcpitch, data);
data = temp;
}
GL_CHECK(compressedTexSubImage(target+_side
, _mip
, _rect.m_x
, _rect.m_y
, _z
, _rect.m_width
, _rect.m_height
, _depth
, m_fmt
, _mem->size
, data
) );
}
else
{
const uint8_t* data = _mem->data;
if (convert)
{
bimg::imageDecodeToRgba8(g_allocator, temp, data, width, height, srcpitch, bimg::TextureFormat::Enum(m_requestedFormat) );
data = temp;
srcpitch = rectpitch;
}
if (BX_IGNORE_C4127(true
&& !unpackRowLength
&& !convert) )
{
bimg::imageCopy(temp, width, height, 1, bpp, srcpitch, data);
data = temp;
}
GL_CHECK(texSubImage(target+_side
, _mip
, _rect.m_x
, _rect.m_y
, _z
, _rect.m_width
, _rect.m_height
, _depth
, m_fmt
, m_type
, data
) );
}
if (!convert
&& unpackRowLength)
{
GL_CHECK(glPixelStorei(GL_UNPACK_ROW_LENGTH, 0) );
}
if (NULL != temp)
{
BX_FREE(g_allocator, temp);
}
}
void TextureGL::setSamplerState(uint32_t _flags, const float _rgba[4])
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30)
&& !s_textureFilter[m_textureFormat])
{
// Force point sampling when texture format doesn't support linear sampling.
_flags &= ~(0
| BGFX_SAMPLER_MIN_MASK
| BGFX_SAMPLER_MAG_MASK
| BGFX_SAMPLER_MIP_MASK
);
_flags |= 0
| BGFX_SAMPLER_MIN_POINT
| BGFX_SAMPLER_MAG_POINT
| BGFX_SAMPLER_MIP_POINT
;
}
const uint32_t flags = (0 != (BGFX_SAMPLER_INTERNAL_DEFAULT & _flags) ? m_flags : _flags) & BGFX_SAMPLER_BITS_MASK;
bool hasBorderColor = false;
bx::HashMurmur2A murmur;
murmur.begin();
murmur.add(flags);
if (NULL != _rgba)
{
if (BGFX_SAMPLER_U_BORDER == (flags & BGFX_SAMPLER_U_BORDER)
|| BGFX_SAMPLER_V_BORDER == (flags & BGFX_SAMPLER_V_BORDER)
|| BGFX_SAMPLER_W_BORDER == (flags & BGFX_SAMPLER_W_BORDER) )
{
murmur.add(_rgba, 16);
hasBorderColor = true;
}
}
uint32_t hash = murmur.end();
if (hash != m_currentSamplerHash)
{
const GLenum target = m_target == GL_TEXTURE_2D_MULTISAMPLE ? GL_TEXTURE_2D : m_target;
const GLenum targetMsaa = m_target;
const uint8_t numMips = m_numMips;
GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_S, s_textureAddress[(flags&BGFX_SAMPLER_U_MASK)>>BGFX_SAMPLER_U_SHIFT]) );
GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_T, s_textureAddress[(flags&BGFX_SAMPLER_V_MASK)>>BGFX_SAMPLER_V_SHIFT]) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_extension[Extension::APPLE_texture_max_level].m_supported)
{
GL_CHECK(glTexParameteri(targetMsaa, GL_TEXTURE_MAX_LEVEL, numMips-1) );
}
if (target == GL_TEXTURE_3D)
{
GL_CHECK(glTexParameteri(target, GL_TEXTURE_WRAP_R, s_textureAddress[(flags&BGFX_SAMPLER_W_MASK)>>BGFX_SAMPLER_W_SHIFT]) );
}
GLenum magFilter;
GLenum minFilter;
getFilters(flags, 1 < numMips, magFilter, minFilter);
GL_CHECK(glTexParameteri(target, GL_TEXTURE_MAG_FILTER, magFilter) );
GL_CHECK(glTexParameteri(target, GL_TEXTURE_MIN_FILTER, minFilter) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
GL_CHECK(glTexParameterf(target, GL_TEXTURE_LOD_BIAS, float(BGFX_CONFIG_MIP_LOD_BIAS) ) );
}
if (s_renderGL->m_borderColorSupport
&& hasBorderColor)
{
GL_CHECK(glTexParameterfv(target, GL_TEXTURE_BORDER_COLOR, _rgba) );
}
if (0 != (flags & (BGFX_SAMPLER_MIN_ANISOTROPIC|BGFX_SAMPLER_MAG_ANISOTROPIC) )
&& 0.0f < s_renderGL->m_maxAnisotropy)
{
GL_CHECK(glTexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, s_renderGL->m_maxAnisotropy) );
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30)
|| s_renderGL->m_shadowSamplersSupport)
{
const uint32_t cmpFunc = (flags&BGFX_SAMPLER_COMPARE_MASK)>>BGFX_SAMPLER_COMPARE_SHIFT;
if (0 == cmpFunc)
{
GL_CHECK(glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, GL_NONE) );
}
else
{
GL_CHECK(glTexParameteri(target, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_REF_TO_TEXTURE) );
GL_CHECK(glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC, s_cmpFunc[cmpFunc]) );
}
}
m_currentSamplerHash = hash;
}
}
void TextureGL::commit(uint32_t _stage, uint32_t _flags, const float _palette[][4])
{
const uint32_t flags = 0 == (BGFX_SAMPLER_INTERNAL_DEFAULT & _flags)
? _flags
: uint32_t(m_flags)
;
const uint32_t index = (flags & BGFX_SAMPLER_BORDER_COLOR_MASK) >> BGFX_SAMPLER_BORDER_COLOR_SHIFT;
GL_CHECK(glActiveTexture(GL_TEXTURE0+_stage) );
GL_CHECK(glBindTexture(m_target, m_id) );
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
{
// GLES2 doesn't have support for sampler object.
setSamplerState(flags, _palette[index]);
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL < 31) )
{
// In case that GL 2.1 sampler object is supported via extension.
if (s_renderGL->m_samplerObjectSupport)
{
s_renderGL->setSamplerState(_stage, m_numMips, flags, _palette[index]);
}
else
{
setSamplerState(flags, _palette[index]);
}
}
else
{
// Everything else has sampler object.
s_renderGL->setSamplerState(_stage, m_numMips, flags, _palette[index]);
}
}
void TextureGL::resolve(uint8_t _resolve) const
{
const bool renderTarget = 0 != (m_flags&BGFX_TEXTURE_RT_MASK);
if (renderTarget
&& 1 < m_numMips
&& 0 != (_resolve & BGFX_RESOLVE_AUTO_GEN_MIPS) )
{
GL_CHECK(glBindTexture(m_target, m_id) );
GL_CHECK(glGenerateMipmap(m_target) );
GL_CHECK(glBindTexture(m_target, 0) );
}
}
void strins(char* _str, const char* _insert)
{
size_t len = bx::strLen(_insert);
bx::memMove(&_str[len], _str, bx::strLen(_str)+1);
bx::memCopy(_str, _insert, len);
}
void ShaderGL::create(const Memory* _mem)
{
bx::MemoryReader reader(_mem->data, _mem->size);
m_hash = bx::hash<bx::HashMurmur2A>(_mem->data, _mem->size);
uint32_t magic;
bx::read(&reader, magic);
if (isShaderType(magic, 'C') )
{
m_type = GL_COMPUTE_SHADER;
}
else if (isShaderType(magic, 'F') )
{
m_type = GL_FRAGMENT_SHADER;
}
else if (isShaderType(magic, 'V') )
{
m_type = GL_VERTEX_SHADER;
}
uint32_t hashIn;
bx::read(&reader, hashIn);
uint32_t hashOut;
if (isShaderVerLess(magic, 6) )
{
hashOut = hashIn;
}
else
{
bx::read(&reader, hashOut);
}
uint16_t count;
bx::read(&reader, count);
BX_TRACE("%s Shader consts %d"
, getShaderTypeName(magic)
, count
);
for (uint32_t ii = 0; ii < count; ++ii)
{
uint8_t nameSize = 0;
bx::read(&reader, nameSize);
char name[256];
bx::read(&reader, &name, nameSize);
name[nameSize] = '\0';
uint8_t type;
bx::read(&reader, type);
uint8_t num;
bx::read(&reader, num);
uint16_t regIndex;
bx::read(&reader, regIndex);
uint16_t regCount;
bx::read(&reader, regCount);
}
uint32_t shaderSize;
bx::read(&reader, shaderSize);
m_id = glCreateShader(m_type);
BX_WARN(0 != m_id, "Failed to create shader.");
bx::StringView code( (const char*)reader.getDataPtr(), shaderSize);
if (0 != m_id)
{
if (GL_COMPUTE_SHADER != m_type)
{
int32_t tempLen = code.getLength() + (4<<10);
char* temp = (char*)alloca(tempLen);
bx::StaticMemoryBlockWriter writer(temp, tempLen);
bx::Error err;
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES < 30) )
{
bx::write(&writer
, "#define centroid\n"
"#define flat\n"
"#define noperspective\n"
"#define smooth\n"
);
bool usesDerivatives = s_extension[Extension::OES_standard_derivatives].m_supported
&& !bx::findIdentifierMatch(code, s_OES_standard_derivatives).isEmpty()
;
const bool usesFragData = !bx::findIdentifierMatch(code, "gl_FragData").isEmpty();
const bool usesFragDepth = !bx::findIdentifierMatch(code, "gl_FragDepth").isEmpty();
const bool usesShadowSamplers = !bx::findIdentifierMatch(code, s_EXT_shadow_samplers).isEmpty();
const bool usesTextureLod = !bx::findIdentifierMatch(code, s_EXT_shader_texture_lod).isEmpty();
const bool usesFragmentOrdering = !bx::findIdentifierMatch(code, "beginFragmentShaderOrdering").isEmpty();
const bool usesTexture3D = true
&& s_extension[Extension::OES_texture_3D].m_supported
&& !bx::findIdentifierMatch(code, s_texture3D).isEmpty()
;
if (usesDerivatives)
{
bx::write(&writer, "#extension GL_OES_standard_derivatives : enable\n");
}
if (usesFragData)
{
BX_WARN(s_extension[Extension::EXT_draw_buffers ].m_supported
|| s_extension[Extension::WEBGL_draw_buffers].m_supported
, "EXT_draw_buffers is used but not supported by GLES2 driver."
);
bx::write(&writer, "#extension GL_EXT_draw_buffers : enable\n");
}
bool insertFragDepth = false;
if (usesFragDepth)
{
BX_WARN(s_extension[Extension::EXT_frag_depth].m_supported, "EXT_frag_depth is used but not supported by GLES2 driver.");
if (s_extension[Extension::EXT_frag_depth].m_supported)
{
bx::write(&writer
, "#extension GL_EXT_frag_depth : enable\n"
"#define bgfx_FragDepth gl_FragDepthEXT\n"
);
char str[128];
bx::snprintf(str, BX_COUNTOF(str), "%s float gl_FragDepthEXT;\n"
, s_extension[Extension::OES_fragment_precision_high].m_supported ? "highp" : "mediump"
);
bx::write(&writer, str);
}
else
{
insertFragDepth = true;
}
}
if (usesShadowSamplers)
{
if (s_renderGL->m_shadowSamplersSupport)
{
bx::write(&writer
, "#extension GL_EXT_shadow_samplers : enable\n"
"#define shadow2D shadow2DEXT\n"
"#define shadow2DProj shadow2DProjEXT\n"
);
}
else
{
bx::write(&writer
, "#define sampler2DShadow sampler2D\n"
"#define shadow2D(_sampler, _coord) step(_coord.z, texture2D(_sampler, _coord.xy).x)\n"
"#define shadow2DProj(_sampler, _coord) step(_coord.z/_coord.w, texture2DProj(_sampler, _coord).x)\n"
);
}
}
if (usesTexture3D)
{
bx::write(&writer, "#extension GL_OES_texture_3D : enable\n");
}
if (usesTextureLod)
{
BX_WARN(s_extension[Extension::ARB_shader_texture_lod].m_supported
|| s_extension[Extension::EXT_shader_texture_lod].m_supported
, "(ARB|EXT)_shader_texture_lod is used but not supported by GLES2 driver."
);
if (s_extension[Extension::ARB_shader_texture_lod].m_supported)
{
bx::write(&writer
, "#extension GL_ARB_shader_texture_lod : enable\n"
"#define texture2DLod texture2DLodARB\n"
"#define texture2DProjLod texture2DProjLodARB\n"
"#define textureCubeLod textureCubeLodARB\n"
"#define texture2DGrad texture2DGradARB\n"
"#define texture2DProjGrad texture2DProjGradARB\n"
"#define textureCubeGrad textureCubeGradARB\n"
);
}
else
{
if(s_extension[Extension::EXT_shader_texture_lod].m_supported)
{
bx::write(&writer
, "#extension GL_EXT_shader_texture_lod : enable\n"
"#define texture2DLod texture2DLodEXT\n"
"#define texture2DProjLod texture2DProjLodEXT\n"
"#define textureCubeLod textureCubeLodEXT\n"
);
}
else
{
bx::write(&writer
, "#define texture2DLod(_sampler, _coord, _level) texture2D(_sampler, _coord)\n"
"#define texture2DProjLod(_sampler, _coord, _level) texture2DProj(_sampler, _coord)\n"
"#define textureCubeLod(_sampler, _coord, _level) textureCube(_sampler, _coord)\n"
);
}
}
}
if (usesFragmentOrdering)
{
if (s_extension[Extension::INTEL_fragment_shader_ordering].m_supported)
{
bx::write(&writer, "#extension GL_INTEL_fragment_shader_ordering : enable\n");
}
else
{
bx::write(&writer, "#define beginFragmentShaderOrdering()\n");
}
}
bx::write(&writer, &err, "precision %s float;\n"
, m_type == GL_FRAGMENT_SHADER ? "mediump" : "highp"
);
bx::write(&writer, code);
bx::write(&writer, '\0');
if (insertFragDepth)
{
bx::StringView shader(temp);
bx::StringView entry = bx::strFind(shader, "void main ()");
if (!entry.isEmpty() )
{
entry.set(entry.getTerm(), shader.getTerm() );
bx::StringView brace = bx::strFind(entry, "{");
if (!brace.isEmpty() )
{
bx::StringView block = bx::strFindBlock(bx::StringView(brace.getPtr(), shader.getTerm() ), '{', '}');
if (!block.isEmpty() )
{
strins(const_cast<char*>(brace.getPtr()+1), "\n float bgfx_FragDepth = 0.0;\n");
}
}
}
}
// Replace all instances of gl_FragDepth with bgfx_FragDepth.
for (bx::StringView fragDepth = bx::findIdentifierMatch(temp, "gl_FragDepth")
; !fragDepth.isEmpty()
; fragDepth = bx::findIdentifierMatch(fragDepth, "gl_FragDepth")
)
{
char* insert = const_cast<char*>(fragDepth.getPtr() );
strins(insert, "bg");
bx::memCopy(insert + 2, "fx", 2);
}
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
&& BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL <= 21) )
{
const bool usesTextureLod = true
&& s_extension[Extension::ARB_shader_texture_lod].m_supported
&& !bx::findIdentifierMatch(code, s_ARB_shader_texture_lod).isEmpty()
;
const bool usesVertexID = true
&& !s_extension[Extension::EXT_gpu_shader4].m_supported
&& !bx::findIdentifierMatch(code, "gl_VertexID").isEmpty()
;
const bool usesInstanceID = true
&& !s_extension[Extension::EXT_gpu_shader4].m_supported
&& !bx::findIdentifierMatch(code, "gl_InstanceID").isEmpty()
;
const bool usesGpuShader4 = true
&& s_extension[Extension::EXT_gpu_shader4].m_supported
&& !bx::findIdentifierMatch(code, s_EXT_gpu_shader4).isEmpty()
;
const bool usesGpuShader5 = !bx::findIdentifierMatch(code, s_ARB_gpu_shader5).isEmpty();
const bool usesIUsamplers = !bx::findIdentifierMatch(code, s_uisamplers).isEmpty();
const bool usesUint = !bx::findIdentifierMatch(code, s_uint).isEmpty();
const bool usesTexelFetch = !bx::findIdentifierMatch(code, s_texelFetch).isEmpty();
const bool usesTextureArray = !bx::findIdentifierMatch(code, s_textureArray).isEmpty();
const bool usesTexture3D = !bx::findIdentifierMatch(code, s_texture3D).isEmpty();
const bool usesTextureMS = !bx::findIdentifierMatch(code, s_ARB_texture_multisample).isEmpty();
const bool usesPacking = !bx::findIdentifierMatch(code, s_ARB_shading_language_packing).isEmpty();
const bool usesInterpQ = !bx::findIdentifierMatch(code, s_intepolationQualifier).isEmpty();
uint32_t version = BX_ENABLED(BX_PLATFORM_OSX) ? 120
: usesTextureArray
|| usesTexture3D
|| usesIUsamplers
|| usesVertexID
|| usesUint
|| usesTexelFetch
|| usesGpuShader5
|| usesInterpQ ? 130
: usesTextureLod ? 120
: 120
;
version = 0 == bx::strCmp(code, "#version 430", 12) ? 430 : version;
bx::write(&writer, &err, "#version %d\n", version);
if (430 > version && usesTextureLod)
{
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer
, "#extension GL_ARB_shader_texture_lod : enable\n"
"#define texture2DGrad texture2DGradARB\n"
"#define texture2DProjGrad texture2DProjGradARB\n"
"#define textureCubeGrad textureCubeGradARB\n"
);
}
}
if (usesInstanceID)
{
bx::write(&writer, "#extension GL_ARB_draw_instanced : enable\n");
}
if (usesGpuShader4)
{
bx::write(&writer, "#extension GL_EXT_gpu_shader4 : enable\n");
}
if (usesGpuShader5)
{
bx::write(&writer, "#extension GL_ARB_gpu_shader5 : enable\n");
}
if (usesPacking)
{
bx::write(&writer, "#extension GL_ARB_shading_language_packing : enable\n");
}
if (usesTextureMS)
{
bx::write(&writer, "#extension GL_ARB_texture_multisample : enable\n");
}
if (usesTextureArray)
{
bx::write(&writer, "#extension GL_EXT_texture_array : enable\n");
if (BX_ENABLED(BX_PLATFORM_OSX) )
{
bx::write(&writer, "#define texture2DArrayLod texture2DArray\n");
}
else
{
bx::write(&writer, "#define texture2DArrayLodEXT texture2DArrayLod\n");
}
}
if (usesTexture3D)
{
bx::write(&writer, "#define texture3DEXT texture3D\n");
if (BX_ENABLED(BX_PLATFORM_OSX) )
{
bx::write(&writer, "#define texture3DLodEXT texture3D\n");
}
else
{
bx::write(&writer, "#define texture3DLodEXT texture3DLod\n");
}
}
if (130 <= version)
{
if (430 > version)
{
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer, "#define varying in\n");
}
else
{
bx::write(&writer, "#define attribute in\n");
bx::write(&writer, "#define varying out\n");
}
}
uint32_t fragData = 0;
if (!bx::findIdentifierMatch(code, "gl_FragData").isEmpty() )
{
for (uint32_t ii = 0, num = g_caps.limits.maxFBAttachments; ii < num; ++ii)
{
char tmpFragData[16];
bx::snprintf(tmpFragData, BX_COUNTOF(tmpFragData), "gl_FragData[%d]", ii);
fragData = bx::uint32_max(fragData, bx::strFind(code, tmpFragData).isEmpty() ? 0 : ii+1);
}
BGFX_FATAL(0 != fragData, Fatal::InvalidShader, "Unable to find and patch gl_FragData!");
}
if (0 != fragData)
{
bx::write(&writer, &err, "out vec4 bgfx_FragData[%d];\n", fragData);
bx::write(&writer, "#define gl_FragData bgfx_FragData\n");
}
else if (!bx::findIdentifierMatch(code, "gl_FragColor").isEmpty() )
{
bx::write(&writer, "out vec4 bgfx_FragColor;\n");
bx::write(&writer, "#define gl_FragColor bgfx_FragColor\n");
}
}
else
{
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer, "#define in varying\n");
}
else
{
bx::write(&writer
, "#define in attribute\n"
"#define out varying\n"
);
}
}
bx::write(&writer,
"#define lowp\n"
"#define mediump\n"
"#define highp\n"
);
if (!usesInterpQ)
{
bx::write(&writer,
"#define centroid\n"
"#define flat\n"
"#define noperspective\n"
"#define smooth\n"
);
}
if (version == 430)
{
int32_t verLen = bx::strLen("#version 430\n");
bx::write(&writer, code.getPtr()+verLen, code.getLength()-verLen);
}
else
{
bx::write(&writer, code);
}
bx::write(&writer, '\0');
}
else if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL >= 31)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
bx::write(&writer, &err
, "#version 300 es\n"
"#extension GL_OES_EGL_image_external_essl3 : require\n"
"precision %s float;\n"
, m_type == GL_FRAGMENT_SHADER ? "mediump" : "highp"
);
}
else
{
bx::write(&writer, "#version 140\n");
}
bx::write(&writer
, "#define texture2DLod textureLod\n"
"#define texture3DLod textureLod\n"
"#define textureCubeLod textureLod\n"
"#define texture2DGrad textureGrad\n"
"#define texture3DGrad textureGrad\n"
"#define textureCubeGrad textureGrad\n"
);
if (m_type == GL_FRAGMENT_SHADER)
{
bx::write(&writer
, "#define varying in\n"
"#define texture2D texture\n"
"#define texture2DProj textureProj\n"
);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
bx::write(&writer, "#define shadow2D(_sampler, _coord) vec2(textureProj(_sampler, vec4(_coord, 1.0) ) )\n");
bx::write(&writer, "#define shadow2DProj(_sampler, _coord) vec2(textureProj(_sampler, _coord) ) )\n");
}
else
{
bx::write(&writer, "#define shadow2D(_sampler, _coord) (textureProj(_sampler, vec4(_coord, 1.0) ) )\n");
bx::write(&writer, "#define shadow2DProj(_sampler, _coord) (textureProj(_sampler, _coord) ) )\n");
}
bx::write(&writer, "#define texture3D texture\n");
bx::write(&writer, "#define textureCube texture\n");
uint32_t fragData = 0;
if (!bx::findIdentifierMatch(code, "gl_FragData").isEmpty() )
{
for (uint32_t ii = 0, num = g_caps.limits.maxFBAttachments; ii < num; ++ii)
{
char tmpFragData[16];
bx::snprintf(tmpFragData, BX_COUNTOF(tmpFragData), "gl_FragData[%d]", ii);
fragData = bx::max(fragData, bx::strFind(code, tmpFragData).isEmpty() ? 0 : ii+1);
}
BGFX_FATAL(0 != fragData, Fatal::InvalidShader, "Unable to find and patch gl_FragData!");
}
if (!bx::findIdentifierMatch(code, "beginFragmentShaderOrdering").isEmpty() )
{
if (s_extension[Extension::INTEL_fragment_shader_ordering].m_supported)
{
bx::write(&writer, "#extension GL_INTEL_fragment_shader_ordering : enable\n");
}
else
{
bx::write(&writer, "#define beginFragmentShaderOrdering()\n");
}
}
if (!bx::findIdentifierMatch(code, s_ARB_texture_multisample).isEmpty() )
{
bx::write(&writer, "#extension GL_ARB_texture_multisample : enable\n");
}
if (0 != fragData)
{
bx::write(&writer, &err, "out vec4 bgfx_FragData[%d];\n", fragData);
bx::write(&writer, "#define gl_FragData bgfx_FragData\n");
}
else
{
bx::write(&writer
, "out vec4 bgfx_FragColor;\n"
"#define gl_FragColor bgfx_FragColor\n"
);
}
}
else
{
bx::write(&writer
, "#define attribute in\n"
"#define varying out\n"
);
}
if (!BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 30) )
{
bx::write(&writer
, "#define lowp\n"
"#define mediump\n"
"#define highp\n"
);
}
bx::write(&writer, code.getPtr(), code.getLength() );
bx::write(&writer, '\0');
}
code.set(temp);
}
else // GL_COMPUTE_SHADER
{
int32_t codeLen = (int32_t)bx::strLen(code);
int32_t tempLen = codeLen + (4<<10);
char* temp = (char*)alloca(tempLen);
bx::StaticMemoryBlockWriter writer(temp, tempLen);
bx::write(&writer
, "#version 430\n"
"#define texture2DLod textureLod\n"
"#define texture2DLodOffset textureLodOffset\n"
"#define texture2DArrayLod textureLod\n"
"#define texture2DArrayLodOffset textureLodOffset\n"
"#define texture3DLod textureLod\n"
"#define textureCubeLod textureLod\n"
"#define texture2DGrad textureGrad\n"
"#define texture3DGrad textureGrad\n"
"#define textureCubeGrad textureGrad\n"
);
int32_t verLen = bx::strLen("#version 430\n");
bx::write(&writer, code.getPtr()+verLen, codeLen-verLen);
bx::write(&writer, '\0');
code = temp;
}
GL_CHECK(glShaderSource(m_id, 1, (const GLchar**)&code, NULL) );
GL_CHECK(glCompileShader(m_id) );
GLint compiled = 0;
GL_CHECK(glGetShaderiv(m_id, GL_COMPILE_STATUS, &compiled) );
if (0 == compiled)
{
LineReader lineReader(code);
bx::Error err;
for (int32_t line = 1; err.isOk(); ++line)
{
char str[4096];
int32_t len = bx::read(&lineReader, str, BX_COUNTOF(str)-1, &err);
if (err.isOk() )
{
str[len] = '\0';
bx::StringView eol = bx::strFindEol(str);
if (eol.getPtr() != str)
{
*const_cast<char*>(eol.getPtr() ) = '\0';
}
BX_TRACE("%3d %s", line, str);
}
}
GLsizei len;
char log[1024];
GL_CHECK(glGetShaderInfoLog(m_id, sizeof(log), &len, log) );
BX_TRACE("Failed to compile shader. %d: %s", compiled, log);
GL_CHECK(glDeleteShader(m_id) );
m_id = 0;
BGFX_FATAL(false, bgfx::Fatal::InvalidShader, "Failed to compile shader.");
}
else if (BX_ENABLED(BGFX_CONFIG_DEBUG)
&& s_extension[Extension::ANGLE_translated_shader_source].m_supported
&& NULL != glGetTranslatedShaderSourceANGLE)
{
GLsizei len;
GL_CHECK(glGetShaderiv(m_id, GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, &len) );
char* source = (char*)alloca(len);
GL_CHECK(glGetTranslatedShaderSourceANGLE(m_id, len, &len, source) );
BX_TRACE("ANGLE source (len: %d):\n%s\n####", len, source);
}
}
}
void ShaderGL::destroy()
{
if (0 != m_id)
{
GL_CHECK(glDeleteShader(m_id) );
m_id = 0;
}
}
void FrameBufferGL::create(uint8_t _num, const Attachment* _attachment)
{
GL_CHECK(glGenFramebuffers(1, &m_fbo[0]) );
m_denseIdx = UINT16_MAX;
m_numTh = _num;
bx::memCopy(m_attachment, _attachment, _num*sizeof(Attachment) );
m_needPresent = false;
postReset();
}
void FrameBufferGL::postReset()
{
if (0 != m_fbo[0])
{
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_fbo[0]) );
bool needResolve = false;
GLenum buffers[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS];
uint32_t colorIdx = 0;
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
if (0 == colorIdx)
{
m_width = bx::uint32_max(texture.m_width >> at.mip, 1);
m_height = bx::uint32_max(texture.m_height >> at.mip, 1);
}
GLenum attachment = GL_COLOR_ATTACHMENT0 + colorIdx;
bimg::TextureFormat::Enum format = bimg::TextureFormat::Enum(texture.m_textureFormat);
if (bimg::isDepth(format) )
{
const bimg::ImageBlockInfo& info = bimg::getBlockInfo(format);
if (0 < info.stencilBits)
{
attachment = GL_DEPTH_STENCIL_ATTACHMENT;
}
else if (0 == info.depthBits)
{
attachment = GL_STENCIL_ATTACHMENT;
}
else
{
attachment = GL_DEPTH_ATTACHMENT;
}
}
else if (Access::Write == at.access)
{
buffers[colorIdx] = attachment;
++colorIdx;
}
if (0 != texture.m_rbo)
{
#if !(BGFX_CONFIG_RENDERER_OPENGL >= 30 || BGFX_CONFIG_RENDERER_OPENGLES >= 30)
if (GL_DEPTH_STENCIL_ATTACHMENT == attachment)
{
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER
, GL_DEPTH_ATTACHMENT
, GL_RENDERBUFFER
, texture.m_rbo
) );
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER
, GL_STENCIL_ATTACHMENT
, GL_RENDERBUFFER
, texture.m_rbo
) );
}
else
#endif
{
GL_CHECK(glFramebufferRenderbuffer(GL_FRAMEBUFFER
, attachment
, GL_RENDERBUFFER
, texture.m_rbo
) );
}
}
else
{
if (1 < texture.m_numLayers
&& !texture.isCubeMap())
{
GL_CHECK(glFramebufferTextureLayer(GL_FRAMEBUFFER
, attachment
, texture.m_id
, at.mip
, at.layer
) );
}
else
{
GLenum target = texture.isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X + at.layer
: texture.m_target
;
GL_CHECK(glFramebufferTexture2D(GL_FRAMEBUFFER
, attachment
, target
, texture.m_id
, at.mip
) );
}
}
needResolve |= (0 != texture.m_rbo) && (0 != texture.m_id);
}
}
m_num = uint8_t(colorIdx);
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL || BGFX_CONFIG_RENDERER_OPENGLES >= 31) )
{
if (0 == colorIdx)
{
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
// When only depth is attached disable draw buffer to avoid
// GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER.
GL_CHECK(glDrawBuffer(GL_NONE) );
}
}
else
{
GL_CHECK(glDrawBuffers(colorIdx, buffers) );
}
// Disable read buffer to avoid GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER.
GL_CHECK(glReadBuffer(GL_NONE) );
}
frameBufferValidate();
if (needResolve)
{
GL_CHECK(glGenFramebuffers(1, &m_fbo[1]) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_fbo[1]) );
colorIdx = 0;
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
if (0 != texture.m_id)
{
GLenum attachment = GL_COLOR_ATTACHMENT0 + colorIdx;
if (!bimg::isDepth(bimg::TextureFormat::Enum(texture.m_textureFormat) ) )
{
++colorIdx;
GLenum target = texture.isCubeMap()
? GL_TEXTURE_CUBE_MAP_POSITIVE_X + at.layer
: texture.m_target
;
GL_CHECK(glFramebufferTexture2D(GL_FRAMEBUFFER
, attachment
, target
, texture.m_id
, at.mip
) );
}
}
}
}
frameBufferValidate();
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderGL->m_msaaBackBufferFbo) );
}
}
void FrameBufferGL::create(uint16_t _denseIdx, void* _nwh, uint32_t _width, uint32_t _height, TextureFormat::Enum _format, TextureFormat::Enum _depthFormat)
{
BX_UNUSED(_format, _depthFormat);
m_swapChain = s_renderGL->m_glctx.createSwapChain(_nwh);
m_width = _width;
m_height = _height;
m_numTh = 0;
m_denseIdx = _denseIdx;
m_needPresent = false;
}
uint16_t FrameBufferGL::destroy()
{
if (0 != m_num)
{
GL_CHECK(glDeleteFramebuffers(0 == m_fbo[1] ? 1 : 2, m_fbo) );
m_num = 0;
}
if (NULL != m_swapChain)
{
s_renderGL->m_glctx.destroySwapChain(m_swapChain);
m_swapChain = NULL;
}
bx::memSet(m_fbo, 0, sizeof(m_fbo) );
uint16_t denseIdx = m_denseIdx;
m_denseIdx = UINT16_MAX;
m_needPresent = false;
m_numTh = 0;
return denseIdx;
}
void FrameBufferGL::resolve()
{
if (0 != m_fbo[1])
{
uint32_t colorIdx = 0;
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
bimg::TextureFormat::Enum format = bimg::TextureFormat::Enum(texture.m_textureFormat);
if (!bimg::isDepth(format) )
{
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_fbo[0]) );
GL_CHECK(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_fbo[1]) );
GL_CHECK(glReadBuffer(GL_COLOR_ATTACHMENT0 + colorIdx) );
GL_CHECK(glDrawBuffer(GL_COLOR_ATTACHMENT0 + colorIdx) );
colorIdx++;
GL_CHECK(glBlitFramebuffer(0
, 0
, m_width
, m_height
, 0
, 0
, m_width
, m_height
, GL_COLOR_BUFFER_BIT
, GL_LINEAR
) );
}
}
}
GL_CHECK(glBindFramebuffer(GL_READ_FRAMEBUFFER, m_fbo[0]) );
GL_CHECK(glReadBuffer(GL_NONE) );
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, s_renderGL->m_msaaBackBufferFbo) );
}
for (uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
texture.resolve(at.resolve);
}
}
}
void FrameBufferGL::discard(uint16_t _flags)
{
GLenum buffers[BGFX_CONFIG_MAX_FRAME_BUFFER_ATTACHMENTS+2];
uint32_t idx = 0;
if (BGFX_CLEAR_NONE != (_flags & BGFX_CLEAR_DISCARD_COLOR_MASK) )
{
for (uint32_t ii = 0, num = m_num; ii < num; ++ii)
{
if (BGFX_CLEAR_NONE != (_flags & (BGFX_CLEAR_DISCARD_COLOR_0<<ii) ) )
{
buffers[idx++] = GL_COLOR_ATTACHMENT0 + ii;
}
}
}
uint32_t dsFlags = _flags & (BGFX_CLEAR_DISCARD_DEPTH|BGFX_CLEAR_DISCARD_STENCIL);
if (BGFX_CLEAR_NONE != dsFlags)
{
if (!BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES)
&& (BGFX_CLEAR_DISCARD_DEPTH|BGFX_CLEAR_DISCARD_STENCIL) == dsFlags)
{
buffers[idx++] = GL_DEPTH_STENCIL_ATTACHMENT;
}
else if (BGFX_CLEAR_DISCARD_DEPTH == dsFlags)
{
buffers[idx++] = GL_DEPTH_ATTACHMENT;
}
else if (BGFX_CLEAR_DISCARD_STENCIL == dsFlags)
{
buffers[idx++] = GL_STENCIL_ATTACHMENT;
}
}
GL_CHECK(glInvalidateFramebuffer(GL_FRAMEBUFFER, idx, buffers) );
}
void FrameBufferGL::set()
{
for(uint32_t ii = 0; ii < m_numTh; ++ii)
{
const Attachment& at = m_attachment[ii];
if (at.access == Access::Write)
{
continue;
}
if (isValid(at.handle) )
{
const TextureGL& texture = s_renderGL->m_textures[at.handle.idx];
if(0 != (texture.m_flags&BGFX_TEXTURE_COMPUTE_WRITE))
{
GL_CHECK(glBindImageTexture(ii
, texture.m_id
, at.mip
, GL_FALSE //texture.isLayered() ? GL_TRUE : GL_FALSE
, at.layer
, s_access[Access::ReadWrite]
, s_imageFormat[texture.m_textureFormat])
);
}
}
}
}
void OcclusionQueryGL::create()
{
for (uint32_t ii = 0; ii < BX_COUNTOF(m_query); ++ii)
{
Query& query = m_query[ii];
GL_CHECK(glGenQueries(1, &query.m_id) );
}
}
void OcclusionQueryGL::destroy()
{
for (uint32_t ii = 0; ii < BX_COUNTOF(m_query); ++ii)
{
Query& query = m_query[ii];
GL_CHECK(glDeleteQueries(1, &query.m_id) );
}
}
void OcclusionQueryGL::begin(Frame* _render, OcclusionQueryHandle _handle)
{
while (0 == m_control.reserve(1) )
{
resolve(_render, true);
}
Query& query = m_query[m_control.m_current];
GL_CHECK(glBeginQuery(GL_SAMPLES_PASSED, query.m_id) );
query.m_handle = _handle;
}
void OcclusionQueryGL::end()
{
GL_CHECK(glEndQuery(GL_SAMPLES_PASSED) );
m_control.commit(1);
}
void OcclusionQueryGL::resolve(Frame* _render, bool _wait)
{
while (0 != m_control.available() )
{
Query& query = m_query[m_control.m_read];
if (isValid(query.m_handle) )
{
int32_t result;
if (!_wait)
{
GL_CHECK(glGetQueryObjectiv(query.m_id, GL_QUERY_RESULT_AVAILABLE, &result) );
if (!result)
{
break;
}
}
GL_CHECK(glGetQueryObjectiv(query.m_id, GL_QUERY_RESULT, &result) );
_render->m_occlusion[query.m_handle.idx] = int32_t(result);
}
m_control.consume(1);
}
}
void OcclusionQueryGL::invalidate(OcclusionQueryHandle _handle)
{
const uint32_t size = m_control.m_size;
for (uint32_t ii = 0, num = m_control.available(); ii < num; ++ii)
{
Query& query = m_query[(m_control.m_read + ii) % size];
if (query.m_handle.idx == _handle.idx)
{
query.m_handle.idx = bgfx::kInvalidHandle;
}
}
}
void RendererContextGL::submitBlit(BlitState& _bs, uint16_t _view)
{
if (m_blitSupported)
{
while (_bs.hasItem(_view) )
{
const BlitItem& bi = _bs.advance();
const TextureGL& src = m_textures[bi.m_src.idx];
const TextureGL& dst = m_textures[bi.m_dst.idx];
uint32_t srcWidth = bx::uint32_min(src.m_width, bi.m_srcX + bi.m_width) - bi.m_srcX;
uint32_t srcHeight = bx::uint32_min(src.m_height, bi.m_srcY + bi.m_height) - bi.m_srcY;
uint32_t srcDepth = bx::uint32_min(src.m_depth, bi.m_srcZ + bi.m_depth) - bi.m_srcZ;
uint32_t dstWidth = bx::uint32_min(dst.m_width, bi.m_dstX + bi.m_width) - bi.m_dstX;
uint32_t dstHeight = bx::uint32_min(dst.m_height, bi.m_dstY + bi.m_height) - bi.m_dstY;
uint32_t dstDepth = bx::uint32_min(dst.m_depth, bi.m_dstZ + bi.m_depth) - bi.m_dstZ;
uint32_t width = bx::uint32_min(srcWidth, dstWidth);
uint32_t height = bx::uint32_min(srcHeight, dstHeight);
uint32_t depth = bx::uint32_min(srcDepth, dstDepth);
GL_CHECK(glCopyImageSubData(src.m_id
, src.m_target
, bi.m_srcMip
, bi.m_srcX
, bi.m_srcY
, bi.m_srcZ
, dst.m_id
, dst.m_target
, bi.m_dstMip
, bi.m_dstX
, bi.m_dstY
, bi.m_dstZ
, width
, height
, bx::uint32_imax(depth, 1)
) );
}
}
}
void RendererContextGL::submit(Frame* _render, ClearQuad& _clearQuad, TextVideoMemBlitter& _textVideoMemBlitter)
{
if (_render->m_capture)
{
renderDocTriggerCapture();
}
m_glctx.makeCurrent(NULL);
BGFX_GL_PROFILER_BEGIN_LITERAL("rendererSubmit", kColorView);
if (1 < m_numWindows
&& m_vaoSupport)
{
m_vaoSupport = false;
GL_CHECK(glBindVertexArray(0) );
GL_CHECK(glDeleteVertexArrays(1, &m_vao) );
m_vao = 0;
}
const GLuint defaultVao = m_vao;
if (0 != defaultVao)
{
GL_CHECK(glBindVertexArray(defaultVao) );
}
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_backBufferFbo) );
GL_CHECK(glFrontFace(GL_CW) );
updateResolution(_render->m_resolution);
int64_t timeBegin = bx::getHPCounter();
int64_t captureElapsed = 0;
uint32_t frameQueryIdx = UINT32_MAX;
if (m_timerQuerySupport
&& !BX_ENABLED(BX_PLATFORM_OSX) )
{
frameQueryIdx = m_gpuTimer.begin(BGFX_CONFIG_MAX_VIEWS);
}
if (0 < _render->m_iboffset)
{
BGFX_PROFILER_SCOPE("bgfx/Update transient index buffer", kColorResource);
TransientIndexBuffer* ib = _render->m_transientIb;
m_indexBuffers[ib->handle.idx].update(0, _render->m_iboffset, ib->data, true);
}
if (0 < _render->m_vboffset)
{
BGFX_PROFILER_SCOPE("bgfx/Update transient vertex buffer", kColorResource);
TransientVertexBuffer* vb = _render->m_transientVb;
m_vertexBuffers[vb->handle.idx].update(0, _render->m_vboffset, vb->data, true);
}
_render->sort();
RenderDraw currentState;
currentState.clear();
currentState.m_stateFlags = BGFX_STATE_NONE;
currentState.m_stencil = packStencil(BGFX_STENCIL_NONE, BGFX_STENCIL_NONE);
RenderBind currentBind;
currentBind.clear();
static ViewState viewState;
viewState.reset(_render);
ProgramHandle currentProgram = BGFX_INVALID_HANDLE;
ProgramHandle boundProgram = BGFX_INVALID_HANDLE;
SortKey key;
uint16_t view = UINT16_MAX;
FrameBufferHandle fbh = { BGFX_CONFIG_MAX_FRAME_BUFFERS };
BlitState bs(_render);
int32_t resolutionHeight = _render->m_resolution.height;
uint32_t blendFactor = 0;
uint8_t primIndex;
{
const uint64_t pt = 0;
primIndex = uint8_t(pt>>BGFX_STATE_PT_SHIFT);
}
PrimInfo prim = s_primInfo[primIndex];
GL_CHECK(glPolygonMode(GL_FRONT_AND_BACK
, _render->m_debug&BGFX_DEBUG_WIREFRAME
? GL_LINE
: GL_FILL
) );
bool wasCompute = false;
bool viewHasScissor = false;
Rect viewScissorRect;
viewScissorRect.clear();
uint16_t discardFlags = BGFX_CLEAR_NONE;
const bool blendIndependentSupported = s_extension[Extension::ARB_draw_buffers_blend].m_supported;
const bool computeSupported = false
|| (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) && s_extension[Extension::ARB_compute_shader].m_supported)
|| BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGLES >= 31)
;
const uint32_t maxComputeBindings = g_caps.limits.maxComputeBindings;
uint32_t statsNumPrimsSubmitted[BX_COUNTOF(s_primInfo)] = {};
uint32_t statsNumPrimsRendered[BX_COUNTOF(s_primInfo)] = {};
uint32_t statsNumInstances[BX_COUNTOF(s_primInfo)] = {};
uint32_t statsNumIndices = 0;
uint32_t statsKeyType[2] = {};
Profiler<TimerQueryGL> profiler(
_render
, m_gpuTimer
, s_viewName
, m_timerQuerySupport && !BX_ENABLED(BX_PLATFORM_OSX)
);
if (m_occlusionQuerySupport)
{
m_occlusionQuery.resolve(_render);
}
if (0 == (_render->m_debug&BGFX_DEBUG_IFH) )
{
GL_CHECK(glBindFramebuffer(GL_FRAMEBUFFER, m_msaaBackBufferFbo) );
viewState.m_rect = _render->m_view[0].m_rect;
int32_t numItems = _render->m_numRenderItems;
for (int32_t item = 0; item < numItems;)
{
const uint64_t encodedKey = _render->m_sortKeys[item];
const bool isCompute = key.decode(encodedKey, _render->m_viewRemap);
statsKeyType[isCompute]++;
const bool viewChanged = 0
|| key.m_view != view
|| item == numItems
;
const uint32_t itemIdx = _render->m_sortValues[item];
const RenderItem& renderItem = _render->m_renderItem[itemIdx];
const RenderBind& renderBind = _render->m_renderItemBind[itemIdx];
++item;
if (viewChanged)
{
view = key.m_view;
currentProgram = BGFX_INVALID_HANDLE;
if (item > 1)
{
profiler.end();
}
BGFX_GL_PROFILER_END();
if (_render->m_view[view].m_fbh.idx != fbh.idx)
{
fbh = _render->m_view[view].m_fbh;
resolutionHeight = _render->m_resolution.height;
resolutionHeight = setFrameBuffer(fbh, resolutionHeight, discardFlags);
}
setViewType(view, " ");
BGFX_GL_PROFILER_BEGIN(view, kColorView);
profiler.begin(view);
viewState.m_rect = _render->m_view[view].m_rect;
const Rect& scissorRect = _render->m_view[view].m_scissor;
viewHasScissor = !scissorRect.isZero();
viewScissorRect = viewHasScissor ? scissorRect : viewState.m_rect;
GL_CHECK(glViewport(viewState.m_rect.m_x
, resolutionHeight-viewState.m_rect.m_height-viewState.m_rect.m_y
, viewState.m_rect.m_width
, viewState.m_rect.m_height
) );
Clear& clear = _render->m_view[view].m_clear;
discardFlags = clear.m_flags & BGFX_CLEAR_DISCARD_MASK;
if (BGFX_CLEAR_NONE != (clear.m_flags & BGFX_CLEAR_MASK) )
{
clearQuad(_clearQuad, viewState.m_rect, clear, resolutionHeight, _render->m_colorPalette);
}
GL_CHECK(glDisable(GL_STENCIL_TEST) );
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_LESS) );
GL_CHECK(glEnable(GL_CULL_FACE) );
GL_CHECK(glDisable(GL_BLEND) );
submitBlit(bs, view);
}
if (isCompute)
{
if (!wasCompute)
{
wasCompute = true;
setViewType(view, "C");
BGFX_GL_PROFILER_END();
BGFX_GL_PROFILER_BEGIN(view, kColorCompute);
}
if (computeSupported)
{
const RenderCompute& compute = renderItem.compute;
ProgramGL& program = m_program[key.m_program.idx];
GL_CHECK(glUseProgram(program.m_id) );
GLbitfield barrier = 0;
for (uint32_t ii = 0; ii < maxComputeBindings; ++ii)
{
const Binding& bind = renderBind.m_bind[ii];
if (kInvalidHandle != bind.m_idx)
{
switch (bind.m_type)
{
case Binding::Texture:
{
TextureGL& texture = m_textures[bind.m_idx];
texture.commit(ii, bind.m_samplerFlags, _render->m_colorPalette);
}
break;
case Binding::Image:
{
const TextureGL& texture = m_textures[bind.m_idx];
GL_CHECK(glBindImageTexture(ii
, texture.m_id
, bind.m_mip
, texture.isCubeMap() || texture.m_target == GL_TEXTURE_2D_ARRAY ? GL_TRUE : GL_FALSE
, 0
, s_access[bind.m_access]
, s_imageFormat[bind.m_format])
);
barrier |= GL_SHADER_IMAGE_ACCESS_BARRIER_BIT;
}
break;
case Binding::IndexBuffer:
{
const IndexBufferGL& buffer = m_indexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, ii, buffer.m_id) );
barrier |= GL_SHADER_STORAGE_BARRIER_BIT;
}
break;
case Binding::VertexBuffer:
{
const VertexBufferGL& buffer = m_vertexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, ii, buffer.m_id) );
barrier |= GL_SHADER_STORAGE_BARRIER_BIT;
}
break;
}
}
}
if (0 != barrier)
{
bool constantsChanged = compute.m_uniformBegin < compute.m_uniformEnd;
rendererUpdateUniforms(this, _render->m_uniformBuffer[compute.m_uniformIdx], compute.m_uniformBegin, compute.m_uniformEnd);
if (constantsChanged
&& NULL != program.m_constantBuffer)
{
commit(*program.m_constantBuffer);
}
viewState.setPredefined<1>(this, view, program, _render, compute);
if (isValid(compute.m_indirectBuffer) )
{
barrier |= GL_COMMAND_BARRIER_BIT;
const VertexBufferGL& vb = m_vertexBuffers[compute.m_indirectBuffer.idx];
if (currentState.m_indirectBuffer.idx != compute.m_indirectBuffer.idx)
{
currentState.m_indirectBuffer = compute.m_indirectBuffer;
GL_CHECK(glBindBuffer(GL_DISPATCH_INDIRECT_BUFFER, vb.m_id) );
}
uint32_t numDrawIndirect = UINT16_MAX == compute.m_numIndirect
? vb.m_size/BGFX_CONFIG_DRAW_INDIRECT_STRIDE
: compute.m_numIndirect
;
uintptr_t args = compute.m_startIndirect * BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
for (uint32_t ii = 0; ii < numDrawIndirect; ++ii)
{
GL_CHECK(glDispatchComputeIndirect( (GLintptr)args) );
args += BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
}
}
else
{
if (isValid(currentState.m_indirectBuffer) )
{
currentState.m_indirectBuffer.idx = kInvalidHandle;
GL_CHECK(glBindBuffer(GL_DISPATCH_INDIRECT_BUFFER, 0) );
}
GL_CHECK(glDispatchCompute(compute.m_numX, compute.m_numY, compute.m_numZ) );
}
GL_CHECK(glMemoryBarrier(barrier) );
}
}
continue;
}
bool resetState = viewChanged || wasCompute;
if (wasCompute)
{
wasCompute = false;
setViewType(view, " ");
BGFX_GL_PROFILER_END();
BGFX_GL_PROFILER_BEGIN(view, kColorDraw);
}
const RenderDraw& draw = renderItem.draw;
const bool hasOcclusionQuery = 0 != (draw.m_stateFlags & BGFX_STATE_INTERNAL_OCCLUSION_QUERY);
{
const bool occluded = true
&& isValid(draw.m_occlusionQuery)
&& !hasOcclusionQuery
&& !isVisible(_render, draw.m_occlusionQuery, 0 != (draw.m_submitFlags&BGFX_SUBMIT_INTERNAL_OCCLUSION_VISIBLE) )
;
if (occluded
|| _render->m_frameCache.isZeroArea(viewScissorRect, draw.m_scissor) )
{
if (resetState)
{
currentState.clear();
currentState.m_scissor = !draw.m_scissor;
currentBind.clear();
}
continue;
}
}
const uint64_t newFlags = draw.m_stateFlags;
uint64_t changedFlags = currentState.m_stateFlags ^ draw.m_stateFlags;
currentState.m_stateFlags = newFlags;
const uint64_t newStencil = draw.m_stencil;
uint64_t changedStencil = currentState.m_stencil ^ draw.m_stencil;
currentState.m_stencil = newStencil;
if (resetState)
{
currentState.clear();
currentState.m_scissor = !draw.m_scissor;
changedFlags = BGFX_STATE_MASK;
changedStencil = packStencil(BGFX_STENCIL_MASK, BGFX_STENCIL_MASK);
currentState.m_stateFlags = newFlags;
currentState.m_stencil = newStencil;
currentBind.clear();
}
uint16_t scissor = draw.m_scissor;
if (currentState.m_scissor != scissor)
{
currentState.m_scissor = scissor;
if (UINT16_MAX == scissor)
{
if (viewHasScissor)
{
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(viewScissorRect.m_x
, resolutionHeight-viewScissorRect.m_height-viewScissorRect.m_y
, viewScissorRect.m_width
, viewScissorRect.m_height
) );
}
else
{
GL_CHECK(glDisable(GL_SCISSOR_TEST) );
}
}
else
{
Rect scissorRect;
scissorRect.setIntersect(viewScissorRect, _render->m_frameCache.m_rectCache.m_cache[scissor]);
GL_CHECK(glEnable(GL_SCISSOR_TEST) );
GL_CHECK(glScissor(scissorRect.m_x
, resolutionHeight-scissorRect.m_height-scissorRect.m_y
, scissorRect.m_width
, scissorRect.m_height
) );
}
}
if (0 != changedStencil)
{
if (0 != newStencil)
{
GL_CHECK(glEnable(GL_STENCIL_TEST) );
uint32_t bstencil = unpackStencil(1, newStencil);
uint8_t frontAndBack = bstencil != BGFX_STENCIL_NONE && bstencil != unpackStencil(0, newStencil);
// uint32_t bchanged = unpackStencil(1, changedStencil);
// if (BGFX_STENCIL_FUNC_RMASK_MASK & bchanged)
// {
// uint32_t wmask = (bstencil&BGFX_STENCIL_FUNC_RMASK_MASK)>>BGFX_STENCIL_FUNC_RMASK_SHIFT;
// GL_CHECK(glStencilMask(wmask) );
// }
for (uint8_t ii = 0, num = frontAndBack+1; ii < num; ++ii)
{
uint32_t stencil = unpackStencil(ii, newStencil);
uint32_t changed = unpackStencil(ii, changedStencil);
GLenum face = s_stencilFace[frontAndBack+ii];
if ( (BGFX_STENCIL_TEST_MASK|BGFX_STENCIL_FUNC_REF_MASK|BGFX_STENCIL_FUNC_RMASK_MASK) & changed)
{
GLint ref = (stencil&BGFX_STENCIL_FUNC_REF_MASK)>>BGFX_STENCIL_FUNC_REF_SHIFT;
GLint mask = (stencil&BGFX_STENCIL_FUNC_RMASK_MASK)>>BGFX_STENCIL_FUNC_RMASK_SHIFT;
uint32_t func = (stencil&BGFX_STENCIL_TEST_MASK)>>BGFX_STENCIL_TEST_SHIFT;
GL_CHECK(glStencilFuncSeparate(face, s_cmpFunc[func], ref, mask) );
}
if ( (BGFX_STENCIL_OP_FAIL_S_MASK|BGFX_STENCIL_OP_FAIL_Z_MASK|BGFX_STENCIL_OP_PASS_Z_MASK) & changed)
{
uint32_t sfail = (stencil&BGFX_STENCIL_OP_FAIL_S_MASK)>>BGFX_STENCIL_OP_FAIL_S_SHIFT;
uint32_t zfail = (stencil&BGFX_STENCIL_OP_FAIL_Z_MASK)>>BGFX_STENCIL_OP_FAIL_Z_SHIFT;
uint32_t zpass = (stencil&BGFX_STENCIL_OP_PASS_Z_MASK)>>BGFX_STENCIL_OP_PASS_Z_SHIFT;
GL_CHECK(glStencilOpSeparate(face, s_stencilOp[sfail], s_stencilOp[zfail], s_stencilOp[zpass]) );
}
}
}
else
{
GL_CHECK(glDisable(GL_STENCIL_TEST) );
}
}
if ( (0
| BGFX_STATE_CULL_MASK
| BGFX_STATE_WRITE_Z
| BGFX_STATE_DEPTH_TEST_MASK
| BGFX_STATE_WRITE_RGB
| BGFX_STATE_WRITE_A
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_ALPHA_REF_MASK
| BGFX_STATE_PT_MASK
| BGFX_STATE_POINT_SIZE_MASK
| BGFX_STATE_MSAA
| BGFX_STATE_LINEAA
| BGFX_STATE_CONSERVATIVE_RASTER
) & changedFlags)
{
if (BGFX_STATE_CULL_MASK & changedFlags)
{
if (BGFX_STATE_CULL_CCW & newFlags)
{
GL_CHECK(glEnable(GL_CULL_FACE) );
GL_CHECK(glCullFace(GL_BACK) );
}
else if (BGFX_STATE_CULL_CW & newFlags)
{
GL_CHECK(glEnable(GL_CULL_FACE) );
GL_CHECK(glCullFace(GL_FRONT) );
}
else
{
GL_CHECK(glDisable(GL_CULL_FACE) );
}
}
if (BGFX_STATE_WRITE_Z & changedFlags)
{
GL_CHECK(glDepthMask(!!(BGFX_STATE_WRITE_Z & newFlags) ) );
}
if (BGFX_STATE_DEPTH_TEST_MASK & changedFlags)
{
uint32_t func = (newFlags&BGFX_STATE_DEPTH_TEST_MASK)>>BGFX_STATE_DEPTH_TEST_SHIFT;
if (0 != func)
{
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(s_cmpFunc[func]) );
}
else
{
if (BGFX_STATE_WRITE_Z & newFlags)
{
GL_CHECK(glEnable(GL_DEPTH_TEST) );
GL_CHECK(glDepthFunc(GL_ALWAYS) );
}
else
{
GL_CHECK(glDisable(GL_DEPTH_TEST) );
}
}
}
if (BGFX_STATE_ALPHA_REF_MASK & changedFlags)
{
uint32_t ref = (newFlags&BGFX_STATE_ALPHA_REF_MASK)>>BGFX_STATE_ALPHA_REF_SHIFT;
viewState.m_alphaRef = ref/255.0f;
}
if (BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL) )
{
if ( (BGFX_STATE_PT_POINTS|BGFX_STATE_POINT_SIZE_MASK) & changedFlags)
{
float pointSize = (float)(bx::uint32_max(1, (newFlags&BGFX_STATE_POINT_SIZE_MASK)>>BGFX_STATE_POINT_SIZE_SHIFT) );
GL_CHECK(glPointSize(pointSize) );
}
if (BGFX_STATE_MSAA & changedFlags)
{
GL_CHECK(BGFX_STATE_MSAA & newFlags
? glEnable(GL_MULTISAMPLE)
: glDisable(GL_MULTISAMPLE)
);
}
if (BGFX_STATE_LINEAA & changedFlags)
{
GL_CHECK(BGFX_STATE_LINEAA & newFlags
? glEnable(GL_LINE_SMOOTH)
: glDisable(GL_LINE_SMOOTH)
);
}
if (m_conservativeRasterSupport
&& BGFX_STATE_CONSERVATIVE_RASTER & changedFlags)
{
GL_CHECK(BGFX_STATE_CONSERVATIVE_RASTER & newFlags
? glEnable(GL_CONSERVATIVE_RASTERIZATION_NV)
: glDisable(GL_CONSERVATIVE_RASTERIZATION_NV)
);
}
}
if ( (BGFX_STATE_WRITE_A|BGFX_STATE_WRITE_RGB) & changedFlags)
{
const GLboolean rr = !!(newFlags&BGFX_STATE_WRITE_R);
const GLboolean gg = !!(newFlags&BGFX_STATE_WRITE_G);
const GLboolean bb = !!(newFlags&BGFX_STATE_WRITE_B);
const GLboolean aa = !!(newFlags&BGFX_STATE_WRITE_A);
GL_CHECK(glColorMask(rr, gg, bb, aa) );
}
if ( ( (0
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_BLEND_INDEPENDENT
| BGFX_STATE_BLEND_ALPHA_TO_COVERAGE
) & changedFlags)
|| blendFactor != draw.m_rgba)
{
if (m_atocSupport)
{
if (BGFX_STATE_BLEND_ALPHA_TO_COVERAGE & newFlags)
{
GL_CHECK(glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE) );
}
else
{
GL_CHECK(glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE) );
}
}
if ( ( (0
| BGFX_STATE_BLEND_MASK
| BGFX_STATE_BLEND_EQUATION_MASK
| BGFX_STATE_BLEND_INDEPENDENT) & newFlags)
|| blendFactor != draw.m_rgba)
{
const bool enabled = !!(BGFX_STATE_BLEND_MASK & newFlags);
const bool independent = !!(BGFX_STATE_BLEND_INDEPENDENT & newFlags)
&& blendIndependentSupported
;
const uint32_t blend = uint32_t( (newFlags&BGFX_STATE_BLEND_MASK)>>BGFX_STATE_BLEND_SHIFT);
const uint32_t srcRGB = (blend )&0xf;
const uint32_t dstRGB = (blend>> 4)&0xf;
const uint32_t srcA = (blend>> 8)&0xf;
const uint32_t dstA = (blend>>12)&0xf;
const uint32_t equ = uint32_t( (newFlags&BGFX_STATE_BLEND_EQUATION_MASK)>>BGFX_STATE_BLEND_EQUATION_SHIFT);
const uint32_t equRGB = (equ )&0x7;
const uint32_t equA = (equ>>3)&0x7;
const uint32_t numRt = getNumRt();
if (!BX_ENABLED(BGFX_CONFIG_RENDERER_OPENGL)
|| 1 >= numRt
|| !independent)
{
if (enabled)
{
GL_CHECK(glEnable(GL_BLEND) );
GL_CHECK(glBlendFuncSeparate(s_blendFactor[srcRGB].m_src
, s_blendFactor[dstRGB].m_dst
, s_blendFactor[srcA].m_src
, s_blendFactor[dstA].m_dst
) );
GL_CHECK(glBlendEquationSeparate(s_blendEquation[equRGB], s_blendEquation[equA]) );
if ( (s_blendFactor[srcRGB].m_factor || s_blendFactor[dstRGB].m_factor)
&& blendFactor != draw.m_rgba)
{
const uint32_t rgba = draw.m_rgba;
GLclampf rr = ( (rgba>>24) )/255.0f;
GLclampf gg = ( (rgba>>16)&0xff)/255.0f;
GLclampf bb = ( (rgba>> 8)&0xff)/255.0f;
GLclampf aa = ( (rgba )&0xff)/255.0f;
GL_CHECK(glBlendColor(rr, gg, bb, aa) );
}
}
else
{
GL_CHECK(glDisable(GL_BLEND) );
}
}
else
{
if (enabled)
{
GL_CHECK(glEnablei(GL_BLEND, 0) );
GL_CHECK(glBlendFuncSeparatei(0
, s_blendFactor[srcRGB].m_src
, s_blendFactor[dstRGB].m_dst
, s_blendFactor[srcA].m_src
, s_blendFactor[dstA].m_dst
) );
GL_CHECK(glBlendEquationSeparatei(0
, s_blendEquation[equRGB]
, s_blendEquation[equA]
) );
}
else
{
GL_CHECK(glDisablei(GL_BLEND, 0) );
}
for (uint32_t ii = 1, rgba = draw.m_rgba; ii < numRt; ++ii, rgba >>= 11)
{
if (0 != (rgba&0x7ff) )
{
const uint32_t src = (rgba )&0xf;
const uint32_t dst = (rgba>>4)&0xf;
const uint32_t equation = (rgba>>8)&0x7;
GL_CHECK(glEnablei(GL_BLEND, ii) );
GL_CHECK(glBlendFunci(ii, s_blendFactor[src].m_src, s_blendFactor[dst].m_dst) );
GL_CHECK(glBlendEquationi(ii, s_blendEquation[equation]) );
}
else
{
GL_CHECK(glDisablei(GL_BLEND, ii) );
}
}
}
}
else
{
GL_CHECK(glDisable(GL_BLEND) );
}
blendFactor = draw.m_rgba;
}
const uint64_t pt = newFlags&BGFX_STATE_PT_MASK;
primIndex = uint8_t(pt>>BGFX_STATE_PT_SHIFT);
prim = s_primInfo[primIndex];
}
bool programChanged = false;
bool constantsChanged = draw.m_uniformBegin < draw.m_uniformEnd;
bool bindAttribs = false;
rendererUpdateUniforms(this, _render->m_uniformBuffer[draw.m_uniformIdx], draw.m_uniformBegin, draw.m_uniformEnd);
if (key.m_program.idx != currentProgram.idx)
{
currentProgram = key.m_program;
GLuint id = isValid(currentProgram) ? m_program[currentProgram.idx].m_id : 0;
// Skip rendering if program index is valid, but program is invalid.
currentProgram = 0 == id ? ProgramHandle{kInvalidHandle} : currentProgram;
GL_CHECK(glUseProgram(id) );
programChanged =
constantsChanged =
bindAttribs = true;
}
if (isValid(currentProgram) )
{
ProgramGL& program = m_program[currentProgram.idx];
if (constantsChanged
&& NULL != program.m_constantBuffer)
{
commit(*program.m_constantBuffer);
}
viewState.setPredefined<1>(this, view, program, _render, draw);
{
for (uint32_t stage = 0; stage < BGFX_CONFIG_MAX_TEXTURE_SAMPLERS; ++stage)
{
const Binding& bind = renderBind.m_bind[stage];
Binding& current = currentBind.m_bind[stage];
if (current.m_idx != bind.m_idx
|| current.m_type != bind.m_type
|| current.m_samplerFlags != bind.m_samplerFlags
|| programChanged)
{
if (kInvalidHandle != bind.m_idx)
{
switch (bind.m_type)
{
case Binding::Texture:
{
TextureGL& texture = m_textures[bind.m_idx];
texture.commit(stage, bind.m_samplerFlags, _render->m_colorPalette);
}
break;
case Binding::IndexBuffer:
{
const IndexBufferGL& buffer = m_indexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, stage, buffer.m_id) );
}
break;
case Binding::VertexBuffer:
{
const VertexBufferGL& buffer = m_vertexBuffers[bind.m_idx];
GL_CHECK(glBindBufferBase(GL_SHADER_STORAGE_BUFFER, stage, buffer.m_id) );
}
break;
}
}
}
current = bind;
}
}
{
bool diffStreamHandles = false;
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
if (currentState.m_stream[idx].m_handle.idx != draw.m_stream[idx].m_handle.idx)
{
diffStreamHandles = true;
break;
}
}
if (programChanged
|| currentState.m_streamMask != draw.m_streamMask
|| currentState.m_instanceDataBuffer.idx != draw.m_instanceDataBuffer.idx
|| currentState.m_instanceDataOffset != draw.m_instanceDataOffset
|| currentState.m_instanceDataStride != draw.m_instanceDataStride
|| diffStreamHandles)
{
currentState.m_streamMask = draw.m_streamMask;
currentState.m_instanceDataBuffer.idx = draw.m_instanceDataBuffer.idx;
currentState.m_instanceDataOffset = draw.m_instanceDataOffset;
currentState.m_instanceDataStride = draw.m_instanceDataStride;
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
currentState.m_stream[idx].m_handle = draw.m_stream[idx].m_handle;
}
bindAttribs = true;
}
if (currentState.m_indexBuffer.idx != draw.m_indexBuffer.idx)
{
currentState.m_indexBuffer = draw.m_indexBuffer;
uint16_t handle = draw.m_indexBuffer.idx;
if (kInvalidHandle != handle)
{
IndexBufferGL& ib = m_indexBuffers[handle];
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib.m_id) );
}
else
{
GL_CHECK(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0) );
}
}
if (0 != currentState.m_streamMask)
{
bool diffStartVertex = false;
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
if (currentState.m_stream[idx].m_startVertex != draw.m_stream[idx].m_startVertex)
{
diffStartVertex = true;
break;
}
}
if (bindAttribs || diffStartVertex)
{
if (isValid(boundProgram) )
{
m_program[boundProgram.idx].unbindAttributes();
boundProgram = BGFX_INVALID_HANDLE;
}
boundProgram = currentProgram;
program.bindAttributesBegin();
if (UINT8_MAX != draw.m_streamMask)
{
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
currentState.m_stream[idx].m_startVertex = draw.m_stream[idx].m_startVertex;
const VertexBufferGL& vb = m_vertexBuffers[draw.m_stream[idx].m_handle.idx];
const uint16_t decl = isValid(draw.m_stream[idx].m_layoutHandle)
? draw.m_stream[idx].m_layoutHandle.idx
: vb.m_layoutHandle.idx;
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, vb.m_id) );
program.bindAttributes(m_vertexLayouts[decl], draw.m_stream[idx].m_startVertex);
}
}
program.bindAttributesEnd();
if (isValid(draw.m_instanceDataBuffer) )
{
GL_CHECK(glBindBuffer(GL_ARRAY_BUFFER, m_vertexBuffers[draw.m_instanceDataBuffer.idx].m_id) );
program.bindInstanceData(draw.m_instanceDataStride, draw.m_instanceDataOffset);
}
}
}
}
if (0 != currentState.m_streamMask)
{
uint32_t numVertices = draw.m_numVertices;
if (UINT32_MAX == numVertices)
{
for (uint32_t idx = 0, streamMask = draw.m_streamMask
; 0 != streamMask
; streamMask >>= 1, idx += 1
)
{
const uint32_t ntz = bx::uint32_cnttz(streamMask);
streamMask >>= ntz;
idx += ntz;
const VertexBufferGL& vb = m_vertexBuffers[draw.m_stream[idx].m_handle.idx];
uint16_t decl = !isValid(vb.m_layoutHandle) ? draw.m_stream[idx].m_layoutHandle.idx : vb.m_layoutHandle.idx;
const VertexLayout& layout = m_vertexLayouts[decl];
numVertices = bx::uint32_min(numVertices, vb.m_size/layout.m_stride);
}
}
uint32_t numIndices = 0;
uint32_t numPrimsSubmitted = 0;
uint32_t numInstances = 0;
uint32_t numPrimsRendered = 0;
uint32_t numDrawIndirect = 0;
if (hasOcclusionQuery)
{
m_occlusionQuery.begin(_render, draw.m_occlusionQuery);
}
if (isValid(draw.m_indirectBuffer) )
{
const VertexBufferGL& vb = m_vertexBuffers[draw.m_indirectBuffer.idx];
if (currentState.m_indirectBuffer.idx != draw.m_indirectBuffer.idx)
{
currentState.m_indirectBuffer = draw.m_indirectBuffer;
GL_CHECK(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, vb.m_id) );
}
if (isValid(draw.m_indexBuffer) )
{
const IndexBufferGL& ib = m_indexBuffers[draw.m_indexBuffer.idx];
const bool hasIndex16 = 0 == (ib.m_flags & BGFX_BUFFER_INDEX32);
const GLenum indexFormat = hasIndex16
? GL_UNSIGNED_SHORT
: GL_UNSIGNED_INT
;
numDrawIndirect = UINT16_MAX == draw.m_numIndirect
? vb.m_size/BGFX_CONFIG_DRAW_INDIRECT_STRIDE
: draw.m_numIndirect
;
uintptr_t args = draw.m_startIndirect * BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
GL_CHECK(glMultiDrawElementsIndirect(prim.m_type, indexFormat
, (void*)args
, numDrawIndirect
, BGFX_CONFIG_DRAW_INDIRECT_STRIDE
) );
}
else
{
numDrawIndirect = UINT16_MAX == draw.m_numIndirect
? vb.m_size/BGFX_CONFIG_DRAW_INDIRECT_STRIDE
: draw.m_numIndirect
;
uintptr_t args = draw.m_startIndirect * BGFX_CONFIG_DRAW_INDIRECT_STRIDE;
GL_CHECK(glMultiDrawArraysIndirect(prim.m_type
, (void*)args
, numDrawIndirect
, BGFX_CONFIG_DRAW_INDIRECT_STRIDE
) );
}
}
else
{
if (isValid(currentState.m_indirectBuffer) )
{
currentState.m_indirectBuffer.idx = kInvalidHandle;
GL_CHECK(glBindBuffer(GL_DRAW_INDIRECT_BUFFER, 0) );
}
if (isValid(draw.m_indexBuffer) )
{
const IndexBufferGL& ib = m_indexBuffers[draw.m_indexBuffer.idx];
const bool hasIndex16 = 0 == (ib.m_flags & BGFX_BUFFER_INDEX32);
const uint32_t indexSize = hasIndex16 ? 2 : 4;
const GLenum indexFormat = hasIndex16
? GL_UNSIGNED_SHORT
: GL_UNSIGNED_INT
;
if (UINT32_MAX == draw.m_numIndices)
{
numIndices = ib.m_size/indexSize;
numPrimsSubmitted = numIndices/prim.m_div - prim.m_sub;
numInstances = draw.m_numInstances;
numPrimsRendered = numPrimsSubmitted*draw.m_numInstances;
GL_CHECK(glDrawElementsInstanced(prim.m_type
, numIndices
, indexFormat
, (void*)0
, draw.m_numInstances
) );
}
else if (prim.m_min <= draw.m_numIndices)
{
numIndices = draw.m_numIndices;
numPrimsSubmitted = numIndices/prim.m_div - prim.m_sub;
numInstances = draw.m_numInstances;
numPrimsRendered = numPrimsSubmitted*draw.m_numInstances;
GL_CHECK(glDrawElementsInstanced(prim.m_type
, numIndices
, indexFormat
, (void*)(uintptr_t)(draw.m_startIndex*indexSize)
, draw.m_numInstances
) );
}
}
else
{
numPrimsSubmitted = numVertices/prim.m_div - prim.m_sub;
numInstances = draw.m_numInstances;
numPrimsRendered = numPrimsSubmitted*draw.m_numInstances;
GL_CHECK(glDrawArraysInstanced(prim.m_type
, 0
, numVertices
, draw.m_numInstances
) );
}
}
if (hasOcclusionQuery)
{
m_occlusionQuery.end();
}
if(isValid(draw.m_instanceDataBuffer))
{
program.unbindInstanceData();
}
statsNumPrimsSubmitted[primIndex] += numPrimsSubmitted;
statsNumPrimsRendered[primIndex] += numPrimsRendered;
statsNumInstances[primIndex] += numInstances;
statsNumIndices += numIndices;
}
}
}
if (isValid(boundProgram) )
{
m_program[boundProgram.idx].unbindAttributes();
boundProgram = BGFX_INVALID_HANDLE;
}
if (wasCompute)
{
setViewType(view, "C");
BGFX_GL_PROFILER_END();
BGFX_GL_PROFILER_BEGIN(view, kColorCompute);
}
submitBlit(bs, BGFX_CONFIG_MAX_VIEWS);
blitMsaaFbo();
if (m_vaoSupport)
{
GL_CHECK(glBindVertexArray(m_vao) );
}
if (0 < _render->m_numRenderItems)
{
if (0 != (m_resolution.reset & BGFX_RESET_FLUSH_AFTER_RENDER) )
{
GL_CHECK(glFlush() );
}
captureElapsed = -bx::getHPCounter();
capture();
captureElapsed += bx::getHPCounter();
profiler.end();
}
}
BGFX_GL_PROFILER_END();
m_glctx.makeCurrent(NULL);
int64_t timeEnd = bx::getHPCounter();
int64_t frameTime = timeEnd - timeBegin;
static int64_t min = frameTime;
static int64_t max = frameTime;
min = min > frameTime ? frameTime : min;
max = max < frameTime ? frameTime : max;
static uint32_t maxGpuLatency = 0;
static double maxGpuElapsed = 0.0f;
double elapsedGpuMs = 0.0;
if (UINT32_MAX != frameQueryIdx)
{
m_gpuTimer.end(frameQueryIdx);
const TimerQueryGL::Result& result = m_gpuTimer.m_result[BGFX_CONFIG_MAX_VIEWS];
double toGpuMs = 1000.0 / 1e9;
elapsedGpuMs = (result.m_end - result.m_begin) * toGpuMs;
maxGpuElapsed = elapsedGpuMs > maxGpuElapsed ? elapsedGpuMs : maxGpuElapsed;
maxGpuLatency = bx::uint32_imax(maxGpuLatency, result.m_pending-1);
}
const int64_t timerFreq = bx::getHPFrequency();
Stats& perfStats = _render->m_perfStats;
perfStats.cpuTimeBegin = timeBegin;
perfStats.cpuTimeEnd = timeEnd;
perfStats.cpuTimerFreq = timerFreq;
const TimerQueryGL::Result& result = m_gpuTimer.m_result[BGFX_CONFIG_MAX_VIEWS];
perfStats.gpuTimeBegin = result.m_begin;
perfStats.gpuTimeEnd = result.m_end;
perfStats.gpuTimerFreq = 1000000000;
perfStats.numDraw = statsKeyType[0];
perfStats.numCompute = statsKeyType[1];
perfStats.numBlit = _render->m_numBlitItems;
perfStats.maxGpuLatency = maxGpuLatency;
bx::memCopy(perfStats.numPrims, statsNumPrimsRendered, sizeof(perfStats.numPrims) );
perfStats.gpuMemoryMax = -INT64_MAX;
perfStats.gpuMemoryUsed = -INT64_MAX;
if (_render->m_debug & (BGFX_DEBUG_IFH|BGFX_DEBUG_STATS) )
{
BGFX_GL_PROFILER_BEGIN_LITERAL("debugstats", kColorFrame);
m_needPresent = true;
TextVideoMem& tvm = m_textVideoMem;
static int64_t next = timeEnd;
if (timeEnd >= next)
{
next = timeEnd + timerFreq;
double freq = double(timerFreq);
double toMs = 1000.0/freq;
tvm.clear();
uint16_t pos = 0;
tvm.printf(0, pos++, BGFX_CONFIG_DEBUG ? 0x8c : 0x8f
, " %s / " BX_COMPILER_NAME " / " BX_CPU_NAME " / " BX_ARCH_NAME " / " BX_PLATFORM_NAME " "
, getRendererName()
);
tvm.printf(0, pos++, 0x8f, " Vendor: %s ", m_vendor);
tvm.printf(0, pos++, 0x8f, " Renderer: %s ", m_renderer);
tvm.printf(0, pos++, 0x8f, " Version: %s ", m_version);
tvm.printf(0, pos++, 0x8f, " GLSL version: %s ", m_glslVersion);
char processMemoryUsed[16];
bx::prettify(processMemoryUsed, BX_COUNTOF(processMemoryUsed), bx::getProcessMemoryUsed() );
tvm.printf(0, pos++, 0x8f, " Memory: %s (process) ", processMemoryUsed);
pos = 10;
tvm.printf(10, pos++, 0x8b, " Frame: %7.3f, % 7.3f \x1f, % 7.3f \x1e [ms] / % 6.2f FPS "
, double(frameTime)*toMs
, double(min)*toMs
, double(max)*toMs
, freq/frameTime
);
const uint32_t msaa = (m_resolution.reset&BGFX_RESET_MSAA_MASK)>>BGFX_RESET_MSAA_SHIFT;
tvm.printf(10, pos++, 0x8b, " Reset flags: [%c] vsync, [%c] MSAAx%d, [%c] MaxAnisotropy "
, !!(m_resolution.reset&BGFX_RESET_VSYNC) ? '\xfe' : ' '
, 0 != msaa ? '\xfe' : ' '
, 1<<msaa
, !!(m_resolution.reset&BGFX_RESET_MAXANISOTROPY) ? '\xfe' : ' '
);
double elapsedCpuMs = double(frameTime)*toMs;
tvm.printf(10, pos++, 0x8b, " Submitted: %5d (draw %5d, compute %4d) / CPU %7.4f [ms] %c GPU %7.4f [ms] (latency %d) "
, _render->m_numRenderItems
, statsKeyType[0]
, statsKeyType[1]
, elapsedCpuMs
, elapsedCpuMs > elapsedGpuMs ? '>' : '<'
, maxGpuElapsed
, maxGpuLatency
);
maxGpuLatency = 0;
maxGpuElapsed = 0.0;
for (uint32_t ii = 0; ii < BX_COUNTOF(s_primInfo); ++ii)
{
tvm.printf(10, pos++, 0x8b, " %10s: %7d (#inst: %5d), submitted: %7d "
, getName(Topology::Enum(ii) )
, statsNumPrimsRendered[ii]
, statsNumInstances[ii]
, statsNumPrimsSubmitted[ii]
);
}
if (NULL != m_renderdocdll)
{
tvm.printf(tvm.m_width-27, 0, 0x4f, " [F11 - RenderDoc capture] ");
}
tvm.printf(10, pos++, 0x8b, " Indices: %7d ", statsNumIndices);
// tvm.printf(10, pos++, 0x8b, " Uniform size: %7d, Max: %7d ", _render->m_uniformEnd, _render->m_uniformMax);
tvm.printf(10, pos++, 0x8b, " DVB size: %7d ", _render->m_vboffset);
tvm.printf(10, pos++, 0x8b, " DIB size: %7d ", _render->m_iboffset);
pos++;
tvm.printf(10, pos++, 0x8b, " State cache: ");
tvm.printf(10, pos++, 0x8b, " Sampler ");
tvm.printf(10, pos++, 0x8b, " %6d "
, m_samplerStateCache.getCount()
);
#if BGFX_CONFIG_RENDERER_OPENGL
if (s_extension[Extension::ATI_meminfo].m_supported)
{
GLint vboFree[4];
GL_CHECK(glGetIntegerv(GL_VBO_FREE_MEMORY_ATI, vboFree) );
GLint texFree[4];
GL_CHECK(glGetIntegerv(GL_TEXTURE_FREE_MEMORY_ATI, texFree) );
GLint rbfFree[4];
GL_CHECK(glGetIntegerv(GL_RENDERBUFFER_FREE_MEMORY_ATI, rbfFree) );
pos++;
tvm.printf(10, pos++, 0x8c, " -------------| free| free b| aux| aux fb ");
char tmp0[16];
char tmp1[16];
char tmp2[16];
char tmp3[16];
bx::prettify(tmp0, BX_COUNTOF(tmp0), vboFree[0]);
bx::prettify(tmp1, BX_COUNTOF(tmp1), vboFree[1]);
bx::prettify(tmp2, BX_COUNTOF(tmp2), vboFree[2]);
bx::prettify(tmp3, BX_COUNTOF(tmp3), vboFree[3]);
tvm.printf(10, pos++, 0x8b, " VBO: %10s, %10s, %10s, %10s ", tmp0, tmp1, tmp2, tmp3);
bx::prettify(tmp0, BX_COUNTOF(tmp0), texFree[0]);
bx::prettify(tmp1, BX_COUNTOF(tmp1), texFree[1]);
bx::prettify(tmp2, BX_COUNTOF(tmp2), texFree[2]);
bx::prettify(tmp3, BX_COUNTOF(tmp3), texFree[3]);
tvm.printf(10, pos++, 0x8b, " Texture: %10s, %10s, %10s, %10s ", tmp0, tmp1, tmp2, tmp3);
bx::prettify(tmp0, BX_COUNTOF(tmp0), rbfFree[0]);
bx::prettify(tmp1, BX_COUNTOF(tmp1), rbfFree[1]);
bx::prettify(tmp2, BX_COUNTOF(tmp2), rbfFree[2]);
bx::prettify(tmp3, BX_COUNTOF(tmp3), rbfFree[3]);
tvm.printf(10, pos++, 0x8b, " Render Buffer: %10s, %10s, %10s, %10s ", tmp0, tmp1, tmp2, tmp3);
}
else if (s_extension[Extension::NVX_gpu_memory_info].m_supported)
{
GLint dedicated;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX, &dedicated) );
GLint totalAvail;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX, &totalAvail) );
GLint currAvail;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX, &currAvail) );
GLint evictedCount;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX, &evictedCount) );
GLint evictedMemory;
GL_CHECK(glGetIntegerv(GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX, &evictedMemory) );
pos++;
char tmp0[16];
char tmp1[16];
bx::prettify(tmp0, BX_COUNTOF(tmp0), dedicated);
tvm.printf(10, pos++, 0x8b, " Dedicated: %10s ", tmp0);
bx::prettify(tmp0, BX_COUNTOF(tmp0), currAvail);
bx::prettify(tmp1, BX_COUNTOF(tmp1), totalAvail);
tvm.printf(10, pos++, 0x8b, " Available: %10s / %10s ", tmp0, tmp1);
bx::prettify(tmp0, BX_COUNTOF(tmp0), evictedCount);
bx::prettify(tmp1, BX_COUNTOF(tmp1), evictedMemory);
tvm.printf(10, pos++, 0x8b, " Eviction: %10s / %10s ", tmp0, tmp1);
}
#endif // BGFX_CONFIG_RENDERER_OPENGL
pos++;
double captureMs = double(captureElapsed)*toMs;
tvm.printf(10, pos++, 0x8b, " Capture: %7.4f [ms] ", captureMs);
uint8_t attr[2] = { 0x8c, 0x8a };
uint8_t attrIndex = _render->m_waitSubmit < _render->m_waitRender;
tvm.printf(10, pos++, attr[attrIndex&1], " Submit wait: %7.4f [ms] ", double(_render->m_waitSubmit)*toMs);
tvm.printf(10, pos++, attr[(attrIndex+1)&1], " Render wait: %7.4f [ms] ", double(_render->m_waitRender)*toMs);
min = frameTime;
max = frameTime;
}
blit(this, _textVideoMemBlitter, tvm);
BGFX_GL_PROFILER_END();
}
else if (_render->m_debug & BGFX_DEBUG_TEXT)
{
BGFX_GL_PROFILER_BEGIN_LITERAL("debugtext", kColorFrame);
blit(this, _textVideoMemBlitter, _render->m_textVideoMem);
BGFX_GL_PROFILER_END();
}
}
} } // namespace bgfx
#else
namespace bgfx { namespace gl
{
RendererContextI* rendererCreate(const Init& _init)
{
BX_UNUSED(_init);
return NULL;
}
void rendererDestroy()
{
}
} /* namespace gl */ } // namespace bgfx
#endif // (BGFX_CONFIG_RENDERER_OPENGLES || BGFX_CONFIG_RENDERER_OPENGL)
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