texturev: Added support for loading .exr images.
This commit is contained in:
Родитель
1c392b8c94
Коммит
af9122b209
Разница между файлами не показана из-за своего большого размера
Загрузить разницу
|
@ -21,6 +21,12 @@ namespace stl = tinystl;
|
|||
#include "entry/entry.h"
|
||||
#include <ib-compress/indexbufferdecompression.h>
|
||||
|
||||
BX_PRAGMA_DIAGNOSTIC_PUSH()
|
||||
BX_PRAGMA_DIAGNOSTIC_IGNORED_CLANG_GCC("-Wtype-limits")
|
||||
#define TINYEXR_IMPLEMENTATION
|
||||
#include <tinyexr/tinyexr.h>
|
||||
BX_PRAGMA_DIAGNOSTIC_POP()
|
||||
|
||||
#define LODEPNG_NO_COMPILE_ENCODER
|
||||
#define LODEPNG_NO_COMPILE_DISK
|
||||
#define LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS
|
||||
|
@ -161,6 +167,11 @@ extern "C" stbi_uc* stbi_load_from_memory(stbi_uc const* _buffer, int _len, int*
|
|||
extern "C" void stbi_image_free(void* _ptr);
|
||||
extern void lodepng_free(void* _ptr);
|
||||
|
||||
static void exrRelease(void* _ptr)
|
||||
{
|
||||
BX_FREE(entry::getAllocator(), _ptr);
|
||||
}
|
||||
|
||||
bgfx::TextureHandle loadTexture(bx::FileReaderI* _reader, const char* _filePath, uint32_t _flags, uint8_t _skip, bgfx::TextureInfo* _info)
|
||||
{
|
||||
if (NULL != bx::stristr(_filePath, ".dds")
|
||||
|
@ -196,6 +207,7 @@ bgfx::TextureHandle loadTexture(bx::FileReaderI* _reader, const char* _filePath,
|
|||
|
||||
uint8_t* out = NULL;
|
||||
static uint8_t pngMagic[] = { 0x89, 0x50, 0x4E, 0x47, 0x0d, 0x0a };
|
||||
|
||||
if (0 == memcmp(data, pngMagic, sizeof(pngMagic) ) )
|
||||
{
|
||||
release = lodepng_free;
|
||||
|
@ -292,24 +304,146 @@ bgfx::TextureHandle loadTexture(bx::FileReaderI* _reader, const char* _filePath,
|
|||
}
|
||||
else
|
||||
{
|
||||
int comp = 0;
|
||||
out = stbi_load_from_memory( (uint8_t*)data, size, (int*)&width, (int*)&height, &comp, 4);
|
||||
EXRVersion exrVersion;
|
||||
int result = ParseEXRVersionFromMemory(&exrVersion, (uint8_t*)data, size);
|
||||
if (TINYEXR_SUCCESS == result)
|
||||
{
|
||||
const char* err = NULL;
|
||||
EXRHeader exrHeader;
|
||||
result = ParseEXRHeaderFromMemory(&exrHeader, &exrVersion, (uint8_t*)data, size, &err);
|
||||
if (TINYEXR_SUCCESS == result)
|
||||
{
|
||||
EXRImage exrImage;
|
||||
InitEXRImage(&exrImage);
|
||||
|
||||
result = LoadEXRImageFromMemory(&exrImage, &exrHeader, (uint8_t*)data, size, &err);
|
||||
if (TINYEXR_SUCCESS == result)
|
||||
{
|
||||
uint8_t idxR = UINT8_MAX;
|
||||
uint8_t idxG = UINT8_MAX;
|
||||
uint8_t idxB = UINT8_MAX;
|
||||
uint8_t idxA = UINT8_MAX;
|
||||
for (uint8_t ii = 0, num = uint8_t(exrHeader.num_channels); ii < num; ++ii)
|
||||
{
|
||||
const EXRChannelInfo& channel = exrHeader.channels[ii];
|
||||
if (UINT8_MAX == idxR
|
||||
&& 0 == strcmp(channel.name, "R") )
|
||||
{
|
||||
idxR = ii;
|
||||
}
|
||||
else if (UINT8_MAX == idxG
|
||||
&& 0 == strcmp(channel.name, "G") )
|
||||
{
|
||||
idxG = ii;
|
||||
}
|
||||
else if (UINT8_MAX == idxB
|
||||
&& 0 == strcmp(channel.name, "B") )
|
||||
{
|
||||
idxB = ii;
|
||||
}
|
||||
else if (UINT8_MAX == idxA
|
||||
&& 0 == strcmp(channel.name, "A") )
|
||||
{
|
||||
idxA = ii;
|
||||
}
|
||||
}
|
||||
|
||||
if (UINT8_MAX != idxR)
|
||||
{
|
||||
const bool asFloat = exrHeader.pixel_types[idxR] == TINYEXR_PIXELTYPE_FLOAT;
|
||||
|
||||
uint32_t srcBpp = 32;
|
||||
uint32_t dstBpp = asFloat ? 32 : 16;
|
||||
format = asFloat ? bgfx::TextureFormat::R32F : bgfx::TextureFormat::R16F;
|
||||
uint32_t stepR = 1;
|
||||
uint32_t stepG = 0;
|
||||
uint32_t stepB = 0;
|
||||
uint32_t stepA = 0;
|
||||
|
||||
if (UINT8_MAX != idxG)
|
||||
{
|
||||
srcBpp += 32;
|
||||
dstBpp = asFloat ? 64 : 32;
|
||||
format = asFloat ? bgfx::TextureFormat::RG32F : bgfx::TextureFormat::RG16F;
|
||||
stepG = 1;
|
||||
}
|
||||
|
||||
if (UINT8_MAX != idxB)
|
||||
{
|
||||
srcBpp += 32;
|
||||
dstBpp = asFloat ? 128 : 64;
|
||||
format = asFloat ? bgfx::TextureFormat::RGBA32F : bgfx::TextureFormat::RGBA16F;
|
||||
stepB = 1;
|
||||
}
|
||||
|
||||
if (UINT8_MAX != idxA)
|
||||
{
|
||||
srcBpp += 32;
|
||||
dstBpp = asFloat ? 128 : 64;
|
||||
format = asFloat ? bgfx::TextureFormat::RGBA32F : bgfx::TextureFormat::RGBA16F;
|
||||
stepA = 1;
|
||||
}
|
||||
|
||||
release = exrRelease;
|
||||
out = (uint8_t*)BX_ALLOC(allocator, exrImage.width * exrImage.height * dstBpp/8);
|
||||
|
||||
const float zero = 0.0f;
|
||||
const float* srcR = UINT8_MAX == idxR ? &zero : (const float*)(exrImage.images)[idxR];
|
||||
const float* srcG = UINT8_MAX == idxG ? &zero : (const float*)(exrImage.images)[idxG];
|
||||
const float* srcB = UINT8_MAX == idxB ? &zero : (const float*)(exrImage.images)[idxB];
|
||||
const float* srcA = UINT8_MAX == idxA ? &zero : (const float*)(exrImage.images)[idxA];
|
||||
|
||||
const uint32_t bytesPerPixel = dstBpp/8;
|
||||
for (uint32_t ii = 0, num = exrImage.width * exrImage.height; ii < num; ++ii)
|
||||
{
|
||||
float rgba[4] =
|
||||
{
|
||||
*srcR,
|
||||
*srcG,
|
||||
*srcB,
|
||||
*srcA,
|
||||
};
|
||||
memcpy(&out[ii * bytesPerPixel], rgba, bytesPerPixel);
|
||||
|
||||
srcR += stepR;
|
||||
srcG += stepG;
|
||||
srcB += stepB;
|
||||
srcA += stepA;
|
||||
}
|
||||
}
|
||||
|
||||
FreeEXRImage(&exrImage);
|
||||
}
|
||||
|
||||
FreeEXRHeader(&exrHeader);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
int comp = 0;
|
||||
out = stbi_load_from_memory( (uint8_t*)data, size, (int*)&width, (int*)&height, &comp, 4);
|
||||
}
|
||||
}
|
||||
|
||||
BX_FREE(allocator, data);
|
||||
|
||||
if (NULL != out)
|
||||
{
|
||||
handle = bgfx::createTexture2D(uint16_t(width), uint16_t(height), false, 1
|
||||
, format
|
||||
, _flags
|
||||
, bgfx::copy(out, width*height*bpp/8)
|
||||
);
|
||||
handle = bgfx::createTexture2D(
|
||||
uint16_t(width)
|
||||
, uint16_t(height)
|
||||
, false
|
||||
, 1
|
||||
, format
|
||||
, _flags
|
||||
, bgfx::copy(out, width*height*bpp/8)
|
||||
);
|
||||
release(out);
|
||||
|
||||
if (NULL != _info)
|
||||
{
|
||||
bgfx::calcTextureSize(*_info
|
||||
bgfx::calcTextureSize(
|
||||
*_info
|
||||
, uint16_t(width)
|
||||
, uint16_t(height)
|
||||
, 0
|
||||
|
|
|
@ -262,7 +262,7 @@ EGL_IMPORT
|
|||
|
||||
# if BX_PLATFORM_RPI
|
||||
BX_UNUSED(hasEglKhrCreateContext, hasEglKhrNoError);
|
||||
#else
|
||||
# else
|
||||
if (hasEglKhrCreateContext)
|
||||
{
|
||||
bx::write(&writer, EGLint(EGL_CONTEXT_MAJOR_VERSION_KHR) );
|
||||
|
|
|
@ -49,6 +49,7 @@ static const char* s_supportedExt[] =
|
|||
{
|
||||
"bmp",
|
||||
"dds",
|
||||
"exr",
|
||||
"jpg",
|
||||
"jpeg",
|
||||
"hdr",
|
||||
|
|
Загрузка…
Ссылка в новой задаче