зеркало из https://github.com/mozilla/gecko-dev.git
1147 строки
43 KiB
C++
1147 строки
43 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxUtils.h"
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#include "GLBlitHelper.h"
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#include "GLContext.h"
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#include "GLScreenBuffer.h"
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#include "ScopedGLHelpers.h"
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#include "mozilla/Preferences.h"
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#include "ImageContainer.h"
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#include "HeapCopyOfStackArray.h"
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#include "mozilla/ArrayUtils.h"
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#include "mozilla/gfx/Logging.h"
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#include "mozilla/gfx/Matrix.h"
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#include "mozilla/UniquePtr.h"
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#include "GPUVideoImage.h"
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#ifdef MOZ_WIDGET_ANDROID
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# include "AndroidSurfaceTexture.h"
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# include "GLImages.h"
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# include "GLLibraryEGL.h"
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# include "mozilla/java/GeckoSurfaceTextureWrappers.h"
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#endif
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#ifdef XP_MACOSX
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# include "MacIOSurfaceImage.h"
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# include "GLContextCGL.h"
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#endif
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#ifdef XP_WIN
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# include "mozilla/layers/D3D11ShareHandleImage.h"
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# include "mozilla/layers/D3D11YCbCrImage.h"
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#endif
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using mozilla::layers::PlanarYCbCrData;
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using mozilla::layers::PlanarYCbCrImage;
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namespace mozilla {
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namespace gl {
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// --
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const char* const kFragHeader_Tex2D =
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"\
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#define SAMPLER sampler2D \n\
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#if __VERSION__ >= 130 \n\
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#define TEXTURE texture \n\
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#else \n\
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#define TEXTURE texture2D \n\
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#endif \n\
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";
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const char* const kFragHeader_Tex2DRect =
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"\
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#define SAMPLER sampler2DRect \n\
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#if __VERSION__ >= 130 \n\
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#define TEXTURE texture \n\
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#else \n\
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#define TEXTURE texture2DRect \n\
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#endif \n\
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";
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const char* const kFragHeader_TexExt =
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"\
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#extension GL_OES_EGL_image_external : require \n\
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#if __VERSION__ >= 130 \n\
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#define TEXTURE texture \n\
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#else \n\
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#define TEXTURE texture2D \n\
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#endif \n\
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#define SAMPLER samplerExternalOES \n\
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";
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const char* const kFragBody_RGBA =
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"\
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VARYING vec2 vTexCoord0; \n\
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uniform SAMPLER uTex0; \n\
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\n\
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void main(void) \n\
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{ \n\
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FRAG_COLOR = TEXTURE(uTex0, vTexCoord0); \n\
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} \n\
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";
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const char* const kFragBody_CrYCb =
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"\
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VARYING vec2 vTexCoord0; \n\
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uniform SAMPLER uTex0; \n\
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uniform MAT4X3 uColorMatrix; \n\
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\n\
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void main(void) \n\
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{ \n\
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vec4 yuv = vec4(TEXTURE(uTex0, vTexCoord0).gbr, \n\
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1.0); \n\
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FRAG_COLOR = vec4((uColorMatrix * yuv).rgb, 1.0); \n\
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} \n\
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";
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const char* const kFragBody_NV12 =
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"\
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VARYING vec2 vTexCoord0; \n\
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VARYING vec2 vTexCoord1; \n\
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uniform SAMPLER uTex0; \n\
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uniform SAMPLER uTex1; \n\
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uniform MAT4X3 uColorMatrix; \n\
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\n\
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void main(void) \n\
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{ \n\
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vec4 yuv = vec4(TEXTURE(uTex0, vTexCoord0).x, \n\
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TEXTURE(uTex1, vTexCoord1).xy, \n\
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1.0); \n\
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FRAG_COLOR = vec4((uColorMatrix * yuv).rgb, 1.0); \n\
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} \n\
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";
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const char* const kFragBody_PlanarYUV =
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"\
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VARYING vec2 vTexCoord0; \n\
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VARYING vec2 vTexCoord1; \n\
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uniform SAMPLER uTex0; \n\
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uniform SAMPLER uTex1; \n\
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uniform SAMPLER uTex2; \n\
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uniform MAT4X3 uColorMatrix; \n\
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\n\
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void main(void) \n\
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{ \n\
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vec4 yuv = vec4(TEXTURE(uTex0, vTexCoord0).x, \n\
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TEXTURE(uTex1, vTexCoord1).x, \n\
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TEXTURE(uTex2, vTexCoord1).x, \n\
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1.0); \n\
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FRAG_COLOR = vec4((uColorMatrix * yuv).rgb, 1.0); \n\
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} \n\
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";
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// --
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template <uint8_t N>
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/*static*/ Mat<N> Mat<N>::Zero() {
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Mat<N> ret;
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for (auto& x : ret.m) {
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x = 0.0f;
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}
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return ret;
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}
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template <uint8_t N>
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/*static*/ Mat<N> Mat<N>::I() {
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auto ret = Mat<N>::Zero();
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for (uint8_t i = 0; i < N; i++) {
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ret.at(i, i) = 1.0f;
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}
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return ret;
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}
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template <uint8_t N>
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Mat<N> Mat<N>::operator*(const Mat<N>& r) const {
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Mat<N> ret;
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for (uint8_t x = 0; x < N; x++) {
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for (uint8_t y = 0; y < N; y++) {
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float sum = 0.0f;
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for (uint8_t i = 0; i < N; i++) {
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sum += at(i, y) * r.at(x, i);
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}
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ret.at(x, y) = sum;
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}
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}
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return ret;
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}
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Mat3 SubRectMat3(const float x, const float y, const float w, const float h) {
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auto ret = Mat3::Zero();
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ret.at(0, 0) = w;
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ret.at(1, 1) = h;
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ret.at(2, 0) = x;
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ret.at(2, 1) = y;
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ret.at(2, 2) = 1.0f;
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return ret;
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}
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Mat3 SubRectMat3(const gfx::IntRect& subrect, const gfx::IntSize& size) {
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return SubRectMat3(float(subrect.X()) / size.width,
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float(subrect.Y()) / size.height,
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float(subrect.Width()) / size.width,
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float(subrect.Height()) / size.height);
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}
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Mat3 SubRectMat3(const gfx::IntRect& bigSubrect, const gfx::IntSize& smallSize,
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const gfx::IntSize& divisors) {
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const float x = float(bigSubrect.X()) / divisors.width;
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const float y = float(bigSubrect.Y()) / divisors.height;
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const float w = float(bigSubrect.Width()) / divisors.width;
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const float h = float(bigSubrect.Height()) / divisors.height;
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return SubRectMat3(x / smallSize.width, y / smallSize.height,
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w / smallSize.width, h / smallSize.height);
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}
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// --
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ScopedSaveMultiTex::ScopedSaveMultiTex(GLContext* const gl,
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const uint8_t texCount,
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const GLenum texTarget)
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: mGL(*gl),
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mTexCount(texCount),
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mTexTarget(texTarget),
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mOldTexUnit(mGL.GetIntAs<GLenum>(LOCAL_GL_ACTIVE_TEXTURE)) {
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GLenum texBinding;
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switch (mTexTarget) {
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case LOCAL_GL_TEXTURE_2D:
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texBinding = LOCAL_GL_TEXTURE_BINDING_2D;
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break;
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case LOCAL_GL_TEXTURE_RECTANGLE:
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texBinding = LOCAL_GL_TEXTURE_BINDING_RECTANGLE;
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break;
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case LOCAL_GL_TEXTURE_EXTERNAL:
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texBinding = LOCAL_GL_TEXTURE_BINDING_EXTERNAL;
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break;
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default:
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gfxCriticalError() << "Unhandled texTarget: " << texTarget;
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}
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for (uint8_t i = 0; i < mTexCount; i++) {
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mGL.fActiveTexture(LOCAL_GL_TEXTURE0 + i);
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if (mGL.IsSupported(GLFeature::sampler_objects)) {
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mOldTexSampler[i] = mGL.GetIntAs<GLuint>(LOCAL_GL_SAMPLER_BINDING);
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mGL.fBindSampler(i, 0);
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}
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mOldTex[i] = mGL.GetIntAs<GLuint>(texBinding);
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}
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}
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ScopedSaveMultiTex::~ScopedSaveMultiTex() {
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for (uint8_t i = 0; i < mTexCount; i++) {
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mGL.fActiveTexture(LOCAL_GL_TEXTURE0 + i);
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if (mGL.IsSupported(GLFeature::sampler_objects)) {
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mGL.fBindSampler(i, mOldTexSampler[i]);
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}
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mGL.fBindTexture(mTexTarget, mOldTex[i]);
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}
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mGL.fActiveTexture(mOldTexUnit);
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}
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// --
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class ScopedBindArrayBuffer final {
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GLContext& mGL;
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const GLuint mOldVBO;
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public:
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ScopedBindArrayBuffer(GLContext* const gl, const GLuint vbo)
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: mGL(*gl), mOldVBO(mGL.GetIntAs<GLuint>(LOCAL_GL_ARRAY_BUFFER_BINDING)) {
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mGL.fBindBuffer(LOCAL_GL_ARRAY_BUFFER, vbo);
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}
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~ScopedBindArrayBuffer() { mGL.fBindBuffer(LOCAL_GL_ARRAY_BUFFER, mOldVBO); }
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};
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// --
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class ScopedShader final {
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GLContext& mGL;
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const GLuint mName;
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public:
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ScopedShader(GLContext* const gl, const GLenum shaderType)
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: mGL(*gl), mName(mGL.fCreateShader(shaderType)) {}
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~ScopedShader() { mGL.fDeleteShader(mName); }
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operator GLuint() const { return mName; }
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};
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// --
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class SaveRestoreCurrentProgram final {
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GLContext& mGL;
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const GLuint mOld;
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public:
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explicit SaveRestoreCurrentProgram(GLContext* const gl)
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: mGL(*gl), mOld(mGL.GetIntAs<GLuint>(LOCAL_GL_CURRENT_PROGRAM)) {}
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~SaveRestoreCurrentProgram() { mGL.fUseProgram(mOld); }
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};
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// --
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class ScopedDrawBlitState final {
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GLContext& mGL;
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const bool blend;
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const bool cullFace;
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const bool depthTest;
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const bool dither;
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const bool polyOffsFill;
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const bool sampleAToC;
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const bool sampleCover;
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const bool scissor;
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const bool stencil;
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Maybe<bool> rasterizerDiscard;
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realGLboolean colorMask[4];
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GLint viewport[4];
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public:
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ScopedDrawBlitState(GLContext* const gl, const gfx::IntSize& destSize)
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: mGL(*gl),
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blend(mGL.PushEnabled(LOCAL_GL_BLEND, false)),
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cullFace(mGL.PushEnabled(LOCAL_GL_CULL_FACE, false)),
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depthTest(mGL.PushEnabled(LOCAL_GL_DEPTH_TEST, false)),
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dither(mGL.PushEnabled(LOCAL_GL_DITHER, true)),
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polyOffsFill(mGL.PushEnabled(LOCAL_GL_POLYGON_OFFSET_FILL, false)),
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sampleAToC(mGL.PushEnabled(LOCAL_GL_SAMPLE_ALPHA_TO_COVERAGE, false)),
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sampleCover(mGL.PushEnabled(LOCAL_GL_SAMPLE_COVERAGE, false)),
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scissor(mGL.PushEnabled(LOCAL_GL_SCISSOR_TEST, false)),
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stencil(mGL.PushEnabled(LOCAL_GL_STENCIL_TEST, false)) {
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if (mGL.IsSupported(GLFeature::transform_feedback2)) {
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// Technically transform_feedback2 requires transform_feedback, which
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// actually adds RASTERIZER_DISCARD.
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rasterizerDiscard =
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Some(mGL.PushEnabled(LOCAL_GL_RASTERIZER_DISCARD, false));
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}
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mGL.fGetBooleanv(LOCAL_GL_COLOR_WRITEMASK, colorMask);
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mGL.fColorMask(true, true, true, true);
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mGL.fGetIntegerv(LOCAL_GL_VIEWPORT, viewport);
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MOZ_ASSERT(destSize.width && destSize.height);
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mGL.fViewport(0, 0, destSize.width, destSize.height);
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}
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~ScopedDrawBlitState() {
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mGL.SetEnabled(LOCAL_GL_BLEND, blend);
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mGL.SetEnabled(LOCAL_GL_CULL_FACE, cullFace);
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mGL.SetEnabled(LOCAL_GL_DEPTH_TEST, depthTest);
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mGL.SetEnabled(LOCAL_GL_DITHER, dither);
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mGL.SetEnabled(LOCAL_GL_POLYGON_OFFSET_FILL, polyOffsFill);
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mGL.SetEnabled(LOCAL_GL_SAMPLE_ALPHA_TO_COVERAGE, sampleAToC);
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mGL.SetEnabled(LOCAL_GL_SAMPLE_COVERAGE, sampleCover);
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mGL.SetEnabled(LOCAL_GL_SCISSOR_TEST, scissor);
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mGL.SetEnabled(LOCAL_GL_STENCIL_TEST, stencil);
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if (rasterizerDiscard) {
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mGL.SetEnabled(LOCAL_GL_RASTERIZER_DISCARD, rasterizerDiscard.value());
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}
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mGL.fColorMask(colorMask[0], colorMask[1], colorMask[2], colorMask[3]);
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mGL.fViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
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}
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};
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// --
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DrawBlitProg::DrawBlitProg(const GLBlitHelper* const parent, const GLuint prog)
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: mParent(*parent),
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mProg(prog),
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mLoc_uDestMatrix(mParent.mGL->fGetUniformLocation(mProg, "uDestMatrix")),
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mLoc_uTexMatrix0(mParent.mGL->fGetUniformLocation(mProg, "uTexMatrix0")),
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mLoc_uTexMatrix1(mParent.mGL->fGetUniformLocation(mProg, "uTexMatrix1")),
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mLoc_uColorMatrix(
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mParent.mGL->fGetUniformLocation(mProg, "uColorMatrix")) {
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const auto& gl = mParent.mGL;
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MOZ_GL_ASSERT(gl, mLoc_uDestMatrix != -1);
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MOZ_GL_ASSERT(gl, mLoc_uTexMatrix0 != -1);
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if (mLoc_uColorMatrix != -1) {
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MOZ_GL_ASSERT(gl, mLoc_uTexMatrix1 != -1);
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int32_t numActiveUniforms = 0;
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gl->fGetProgramiv(mProg, LOCAL_GL_ACTIVE_UNIFORMS, &numActiveUniforms);
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const size_t kMaxNameSize = 32;
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char name[kMaxNameSize] = {0};
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GLint size = 0;
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GLenum type = 0;
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for (int32_t i = 0; i < numActiveUniforms; i++) {
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gl->fGetActiveUniform(mProg, i, kMaxNameSize, nullptr, &size, &type,
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name);
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if (strcmp("uColorMatrix", name) == 0) {
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mType_uColorMatrix = type;
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break;
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}
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}
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MOZ_GL_ASSERT(gl, mType_uColorMatrix);
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}
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}
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DrawBlitProg::~DrawBlitProg() {
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const auto& gl = mParent.mGL;
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if (!gl->MakeCurrent()) return;
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gl->fDeleteProgram(mProg);
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}
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void DrawBlitProg::Draw(const BaseArgs& args,
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const YUVArgs* const argsYUV) const {
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const auto& gl = mParent.mGL;
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const SaveRestoreCurrentProgram oldProg(gl);
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gl->fUseProgram(mProg);
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// --
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Mat3 destMatrix;
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if (args.destRect) {
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const auto& destRect = args.destRect.value();
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destMatrix = SubRectMat3(destRect.X() / args.destSize.width,
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destRect.Y() / args.destSize.height,
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destRect.Width() / args.destSize.width,
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destRect.Height() / args.destSize.height);
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} else {
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destMatrix = Mat3::I();
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}
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if (args.yFlip) {
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// Apply the y-flip matrix before the destMatrix.
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// That is, flip y=[0-1] to y=[1-0] before we restrict to the destRect.
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destMatrix.at(2, 1) += destMatrix.at(1, 1);
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destMatrix.at(1, 1) *= -1.0f;
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}
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gl->fUniformMatrix3fv(mLoc_uDestMatrix, 1, false, destMatrix.m);
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gl->fUniformMatrix3fv(mLoc_uTexMatrix0, 1, false, args.texMatrix0.m);
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MOZ_ASSERT(bool(argsYUV) == (mLoc_uColorMatrix != -1));
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if (argsYUV) {
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gl->fUniformMatrix3fv(mLoc_uTexMatrix1, 1, false, argsYUV->texMatrix1.m);
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const auto& colorMatrix =
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gfxUtils::YuvToRgbMatrix4x4ColumnMajor(argsYUV->colorSpace);
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float mat4x3[4 * 3];
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switch (mType_uColorMatrix) {
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case LOCAL_GL_FLOAT_MAT4:
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gl->fUniformMatrix4fv(mLoc_uColorMatrix, 1, false, colorMatrix);
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break;
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case LOCAL_GL_FLOAT_MAT4x3:
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for (int x = 0; x < 4; x++) {
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for (int y = 0; y < 3; y++) {
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mat4x3[3 * x + y] = colorMatrix[4 * x + y];
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}
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}
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gl->fUniformMatrix4x3fv(mLoc_uColorMatrix, 1, false, mat4x3);
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break;
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default:
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gfxCriticalError() << "Bad mType_uColorMatrix: "
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<< gfx::hexa(mType_uColorMatrix);
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}
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}
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// --
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const ScopedDrawBlitState drawState(gl, args.destSize);
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GLuint oldVAO;
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GLint vaa0Enabled;
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GLint vaa0Size;
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GLenum vaa0Type;
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GLint vaa0Normalized;
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GLsizei vaa0Stride;
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GLvoid* vaa0Pointer;
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if (mParent.mQuadVAO) {
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oldVAO = gl->GetIntAs<GLuint>(LOCAL_GL_VERTEX_ARRAY_BINDING);
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gl->fBindVertexArray(mParent.mQuadVAO);
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} else {
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// clang-format off
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gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_ENABLED, &vaa0Enabled);
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gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_SIZE, &vaa0Size);
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gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_TYPE, (GLint*)&vaa0Type);
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gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, &vaa0Normalized);
|
|
gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_STRIDE, (GLint*)&vaa0Stride);
|
|
gl->fGetVertexAttribPointerv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_POINTER, &vaa0Pointer);
|
|
// clang-format on
|
|
|
|
gl->fEnableVertexAttribArray(0);
|
|
const ScopedBindArrayBuffer bindVBO(gl, mParent.mQuadVBO);
|
|
gl->fVertexAttribPointer(0, 2, LOCAL_GL_FLOAT, false, 0, 0);
|
|
}
|
|
|
|
gl->fDrawArrays(LOCAL_GL_TRIANGLE_STRIP, 0, 4);
|
|
|
|
if (mParent.mQuadVAO) {
|
|
gl->fBindVertexArray(oldVAO);
|
|
} else {
|
|
if (vaa0Enabled) {
|
|
gl->fEnableVertexAttribArray(0);
|
|
} else {
|
|
gl->fDisableVertexAttribArray(0);
|
|
}
|
|
gl->fVertexAttribPointer(0, vaa0Size, vaa0Type, bool(vaa0Normalized),
|
|
vaa0Stride, vaa0Pointer);
|
|
}
|
|
}
|
|
|
|
// --
|
|
|
|
GLBlitHelper::GLBlitHelper(GLContext* const gl)
|
|
: mGL(gl),
|
|
mDrawBlitProg_VertShader(mGL->fCreateShader(LOCAL_GL_VERTEX_SHADER))
|
|
//, mYuvUploads_YSize(0, 0)
|
|
//, mYuvUploads_UVSize(0, 0)
|
|
{
|
|
mGL->fGenBuffers(1, &mQuadVBO);
|
|
{
|
|
const ScopedBindArrayBuffer bindVBO(mGL, mQuadVBO);
|
|
|
|
const float quadData[] = {0, 0, 1, 0, 0, 1, 1, 1};
|
|
const HeapCopyOfStackArray<float> heapQuadData(quadData);
|
|
mGL->fBufferData(LOCAL_GL_ARRAY_BUFFER, heapQuadData.ByteLength(),
|
|
heapQuadData.Data(), LOCAL_GL_STATIC_DRAW);
|
|
|
|
if (mGL->IsSupported(GLFeature::vertex_array_object)) {
|
|
const auto prev = mGL->GetIntAs<GLuint>(LOCAL_GL_VERTEX_ARRAY_BINDING);
|
|
|
|
mGL->fGenVertexArrays(1, &mQuadVAO);
|
|
mGL->fBindVertexArray(mQuadVAO);
|
|
mGL->fEnableVertexAttribArray(0);
|
|
mGL->fVertexAttribPointer(0, 2, LOCAL_GL_FLOAT, false, 0, 0);
|
|
|
|
mGL->fBindVertexArray(prev);
|
|
}
|
|
}
|
|
|
|
// --
|
|
|
|
const auto glslVersion = mGL->ShadingLanguageVersion();
|
|
|
|
// Always use 100 on ES because some devices have OES_EGL_image_external but
|
|
// not OES_EGL_image_external_essl3. We could just use 100 in that particular
|
|
// case, but this is a lot easier and is not harmful to other usages.
|
|
if (mGL->IsGLES()) {
|
|
mDrawBlitProg_VersionLine = nsCString("#version 100\n");
|
|
} else if (glslVersion >= 130) {
|
|
mDrawBlitProg_VersionLine = nsPrintfCString("#version %u\n", glslVersion);
|
|
}
|
|
|
|
const char kVertSource[] =
|
|
"\
|
|
#if __VERSION__ >= 130 \n\
|
|
#define ATTRIBUTE in \n\
|
|
#define VARYING out \n\
|
|
#else \n\
|
|
#define ATTRIBUTE attribute \n\
|
|
#define VARYING varying \n\
|
|
#endif \n\
|
|
\n\
|
|
ATTRIBUTE vec2 aVert; // [0.0-1.0] \n\
|
|
\n\
|
|
uniform mat3 uDestMatrix; \n\
|
|
uniform mat3 uTexMatrix0; \n\
|
|
uniform mat3 uTexMatrix1; \n\
|
|
\n\
|
|
VARYING vec2 vTexCoord0; \n\
|
|
VARYING vec2 vTexCoord1; \n\
|
|
\n\
|
|
void main(void) \n\
|
|
{ \n\
|
|
vec2 destPos = (uDestMatrix * vec3(aVert, 1.0)).xy; \n\
|
|
gl_Position = vec4(destPos * 2.0 - 1.0, 0.0, 1.0); \n\
|
|
\n\
|
|
vTexCoord0 = (uTexMatrix0 * vec3(aVert, 1.0)).xy; \n\
|
|
vTexCoord1 = (uTexMatrix1 * vec3(aVert, 1.0)).xy; \n\
|
|
} \n\
|
|
";
|
|
const char* const parts[] = {mDrawBlitProg_VersionLine.get(), kVertSource};
|
|
mGL->fShaderSource(mDrawBlitProg_VertShader, ArrayLength(parts), parts,
|
|
nullptr);
|
|
mGL->fCompileShader(mDrawBlitProg_VertShader);
|
|
}
|
|
|
|
GLBlitHelper::~GLBlitHelper() {
|
|
for (const auto& pair : mDrawBlitProgs) {
|
|
const auto& ptr = pair.second;
|
|
delete ptr;
|
|
}
|
|
mDrawBlitProgs.clear();
|
|
|
|
if (!mGL->MakeCurrent()) return;
|
|
|
|
mGL->fDeleteShader(mDrawBlitProg_VertShader);
|
|
mGL->fDeleteBuffers(1, &mQuadVBO);
|
|
|
|
if (mQuadVAO) {
|
|
mGL->fDeleteVertexArrays(1, &mQuadVAO);
|
|
}
|
|
}
|
|
|
|
// --
|
|
|
|
const DrawBlitProg* GLBlitHelper::GetDrawBlitProg(
|
|
const DrawBlitProg::Key& key) const {
|
|
const auto& res = mDrawBlitProgs.insert({key, nullptr});
|
|
auto& pair = *(res.first);
|
|
const auto& didInsert = res.second;
|
|
if (didInsert) {
|
|
pair.second = CreateDrawBlitProg(pair.first);
|
|
}
|
|
return pair.second;
|
|
}
|
|
|
|
const DrawBlitProg* GLBlitHelper::CreateDrawBlitProg(
|
|
const DrawBlitProg::Key& key) const {
|
|
const char kFragHeader_Global[] =
|
|
"\
|
|
#ifdef GL_ES \n\
|
|
#ifdef GL_FRAGMENT_PRECISION_HIGH \n\
|
|
precision highp float; \n\
|
|
#else \n\
|
|
precision mediump float; \n\
|
|
#endif \n\
|
|
#endif \n\
|
|
\n\
|
|
#if __VERSION__ >= 130 \n\
|
|
#define VARYING in \n\
|
|
#define FRAG_COLOR oFragColor \n\
|
|
out vec4 FRAG_COLOR; \n\
|
|
#else \n\
|
|
#define VARYING varying \n\
|
|
#define FRAG_COLOR gl_FragColor \n\
|
|
#endif \n\
|
|
\n\
|
|
#if __VERSION__ >= 120 \n\
|
|
#define MAT4X3 mat4x3 \n\
|
|
#else \n\
|
|
#define MAT4X3 mat4 \n\
|
|
#endif \n\
|
|
";
|
|
|
|
const ScopedShader fs(mGL, LOCAL_GL_FRAGMENT_SHADER);
|
|
const char* const parts[] = {mDrawBlitProg_VersionLine.get(), key.fragHeader,
|
|
kFragHeader_Global, key.fragBody};
|
|
mGL->fShaderSource(fs, ArrayLength(parts), parts, nullptr);
|
|
mGL->fCompileShader(fs);
|
|
|
|
const auto prog = mGL->fCreateProgram();
|
|
mGL->fAttachShader(prog, mDrawBlitProg_VertShader);
|
|
mGL->fAttachShader(prog, fs);
|
|
|
|
mGL->fBindAttribLocation(prog, 0, "aPosition");
|
|
mGL->fLinkProgram(prog);
|
|
|
|
GLenum status = 0;
|
|
mGL->fGetProgramiv(prog, LOCAL_GL_LINK_STATUS, (GLint*)&status);
|
|
if (status == LOCAL_GL_TRUE || !mGL->CheckContextLost()) {
|
|
const SaveRestoreCurrentProgram oldProg(mGL);
|
|
mGL->fUseProgram(prog);
|
|
const char* samplerNames[] = {"uTex0", "uTex1", "uTex2"};
|
|
for (int i = 0; i < 3; i++) {
|
|
const auto loc = mGL->fGetUniformLocation(prog, samplerNames[i]);
|
|
if (loc == -1) break;
|
|
mGL->fUniform1i(loc, i);
|
|
}
|
|
|
|
return new DrawBlitProg(this, prog);
|
|
}
|
|
|
|
GLuint progLogLen = 0;
|
|
mGL->fGetProgramiv(prog, LOCAL_GL_INFO_LOG_LENGTH, (GLint*)&progLogLen);
|
|
const UniquePtr<char[]> progLog(new char[progLogLen + 1]);
|
|
mGL->fGetProgramInfoLog(prog, progLogLen, nullptr, progLog.get());
|
|
progLog[progLogLen] = 0;
|
|
|
|
const auto& vs = mDrawBlitProg_VertShader;
|
|
GLuint vsLogLen = 0;
|
|
mGL->fGetShaderiv(vs, LOCAL_GL_INFO_LOG_LENGTH, (GLint*)&vsLogLen);
|
|
const UniquePtr<char[]> vsLog(new char[vsLogLen + 1]);
|
|
mGL->fGetShaderInfoLog(vs, vsLogLen, nullptr, vsLog.get());
|
|
vsLog[vsLogLen] = 0;
|
|
|
|
GLuint fsLogLen = 0;
|
|
mGL->fGetShaderiv(fs, LOCAL_GL_INFO_LOG_LENGTH, (GLint*)&fsLogLen);
|
|
const UniquePtr<char[]> fsLog(new char[fsLogLen + 1]);
|
|
mGL->fGetShaderInfoLog(fs, fsLogLen, nullptr, fsLog.get());
|
|
fsLog[fsLogLen] = 0;
|
|
|
|
gfxCriticalError() << "DrawBlitProg link failed:\n"
|
|
<< "progLog: " << progLog.get() << "\n"
|
|
<< "vsLog: " << vsLog.get() << "\n"
|
|
<< "fsLog: " << fsLog.get() << "\n";
|
|
MOZ_CRASH();
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
bool GLBlitHelper::BlitImageToFramebuffer(layers::Image* const srcImage,
|
|
const gfx::IntSize& destSize,
|
|
const OriginPos destOrigin) {
|
|
switch (srcImage->GetFormat()) {
|
|
case ImageFormat::PLANAR_YCBCR:
|
|
return BlitImage(static_cast<PlanarYCbCrImage*>(srcImage), destSize,
|
|
destOrigin);
|
|
|
|
case ImageFormat::SURFACE_TEXTURE:
|
|
#ifdef MOZ_WIDGET_ANDROID
|
|
return BlitImage(static_cast<layers::SurfaceTextureImage*>(srcImage),
|
|
destSize, destOrigin);
|
|
#else
|
|
MOZ_ASSERT(false);
|
|
return false;
|
|
#endif
|
|
|
|
case ImageFormat::MAC_IOSURFACE:
|
|
#ifdef XP_MACOSX
|
|
return BlitImage(srcImage->AsMacIOSurfaceImage(), destSize, destOrigin);
|
|
#else
|
|
MOZ_ASSERT(false);
|
|
return false;
|
|
#endif
|
|
|
|
#ifdef XP_WIN
|
|
case ImageFormat::GPU_VIDEO:
|
|
return BlitImage(static_cast<layers::GPUVideoImage*>(srcImage), destSize,
|
|
destOrigin);
|
|
case ImageFormat::D3D11_SHARE_HANDLE_TEXTURE:
|
|
return BlitImage(static_cast<layers::D3D11ShareHandleImage*>(srcImage),
|
|
destSize, destOrigin);
|
|
case ImageFormat::D3D11_YCBCR_IMAGE:
|
|
return BlitImage(static_cast<layers::D3D11YCbCrImage*>(srcImage),
|
|
destSize, destOrigin);
|
|
case ImageFormat::D3D9_RGB32_TEXTURE:
|
|
return false; // todo
|
|
#else
|
|
case ImageFormat::GPU_VIDEO:
|
|
case ImageFormat::D3D11_SHARE_HANDLE_TEXTURE:
|
|
case ImageFormat::D3D11_YCBCR_IMAGE:
|
|
case ImageFormat::D3D9_RGB32_TEXTURE:
|
|
MOZ_ASSERT(false);
|
|
return false;
|
|
#endif
|
|
case ImageFormat::CAIRO_SURFACE:
|
|
case ImageFormat::NV_IMAGE:
|
|
case ImageFormat::OVERLAY_IMAGE:
|
|
case ImageFormat::SHARED_RGB:
|
|
case ImageFormat::TEXTURE_WRAPPER:
|
|
case ImageFormat::DMABUF:
|
|
return false; // todo
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// -------------------------------------
|
|
|
|
#ifdef MOZ_WIDGET_ANDROID
|
|
bool GLBlitHelper::BlitImage(layers::SurfaceTextureImage* srcImage,
|
|
const gfx::IntSize& destSize,
|
|
const OriginPos destOrigin) const {
|
|
AndroidSurfaceTextureHandle handle = srcImage->GetHandle();
|
|
const auto& surfaceTexture = java::GeckoSurfaceTexture::Lookup(handle);
|
|
|
|
if (!surfaceTexture) {
|
|
return false;
|
|
}
|
|
|
|
const ScopedBindTextureUnit boundTU(mGL, LOCAL_GL_TEXTURE0);
|
|
|
|
if (!surfaceTexture->IsAttachedToGLContext((int64_t)mGL)) {
|
|
GLuint tex;
|
|
mGL->MakeCurrent();
|
|
mGL->fGenTextures(1, &tex);
|
|
|
|
if (NS_FAILED(surfaceTexture->AttachToGLContext((int64_t)mGL, tex))) {
|
|
mGL->fDeleteTextures(1, &tex);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
const ScopedBindTexture savedTex(mGL, surfaceTexture->GetTexName(),
|
|
LOCAL_GL_TEXTURE_EXTERNAL);
|
|
surfaceTexture->UpdateTexImage();
|
|
|
|
gfx::Matrix4x4 transform4;
|
|
AndroidSurfaceTexture::GetTransformMatrix(
|
|
java::sdk::SurfaceTexture::Ref::From(surfaceTexture), &transform4);
|
|
Mat3 transform3;
|
|
transform3.at(0, 0) = transform4._11;
|
|
transform3.at(0, 1) = transform4._12;
|
|
transform3.at(0, 2) = transform4._14;
|
|
transform3.at(1, 0) = transform4._21;
|
|
transform3.at(1, 1) = transform4._22;
|
|
transform3.at(1, 2) = transform4._24;
|
|
transform3.at(2, 0) = transform4._41;
|
|
transform3.at(2, 1) = transform4._42;
|
|
transform3.at(2, 2) = transform4._44;
|
|
|
|
// We don't do w-divison, so if these aren't what we expect, we're probably
|
|
// doing something wrong.
|
|
MOZ_ASSERT(transform3.at(0, 2) == 0);
|
|
MOZ_ASSERT(transform3.at(1, 2) == 0);
|
|
MOZ_ASSERT(transform3.at(2, 2) == 1);
|
|
|
|
const auto& srcOrigin = srcImage->GetOriginPos();
|
|
|
|
// I honestly have no idea why this logic is flipped, but changing the
|
|
// source origin would mean we'd have to flip it in the compositor
|
|
// which makes just as little sense as this.
|
|
const bool yFlip = (srcOrigin == destOrigin);
|
|
|
|
const auto& prog = GetDrawBlitProg({kFragHeader_TexExt, kFragBody_RGBA});
|
|
|
|
// There is no padding on these images, so we can use the GetTransformMatrix
|
|
// directly.
|
|
const DrawBlitProg::BaseArgs baseArgs = {transform3, yFlip, destSize,
|
|
Nothing()};
|
|
prog->Draw(baseArgs, nullptr);
|
|
|
|
if (surfaceTexture->IsSingleBuffer()) {
|
|
surfaceTexture->ReleaseTexImage();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
// -------------------------------------
|
|
|
|
bool GuessDivisors(const gfx::IntSize& ySize, const gfx::IntSize& uvSize,
|
|
gfx::IntSize* const out_divisors) {
|
|
const gfx::IntSize divisors((ySize.width == uvSize.width) ? 1 : 2,
|
|
(ySize.height == uvSize.height) ? 1 : 2);
|
|
if (uvSize.width * divisors.width != ySize.width ||
|
|
uvSize.height * divisors.height != ySize.height) {
|
|
return false;
|
|
}
|
|
*out_divisors = divisors;
|
|
return true;
|
|
}
|
|
|
|
bool GLBlitHelper::BlitImage(layers::PlanarYCbCrImage* const yuvImage,
|
|
const gfx::IntSize& destSize,
|
|
const OriginPos destOrigin) {
|
|
const auto& prog = GetDrawBlitProg({kFragHeader_Tex2D, kFragBody_PlanarYUV});
|
|
|
|
if (!mYuvUploads[0]) {
|
|
mGL->fGenTextures(3, mYuvUploads);
|
|
const ScopedBindTexture bindTex(mGL, mYuvUploads[0]);
|
|
mGL->TexParams_SetClampNoMips();
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[1]);
|
|
mGL->TexParams_SetClampNoMips();
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[2]);
|
|
mGL->TexParams_SetClampNoMips();
|
|
}
|
|
|
|
// --
|
|
|
|
const PlanarYCbCrData* const yuvData = yuvImage->GetData();
|
|
|
|
if (yuvData->mYSkip || yuvData->mCbSkip || yuvData->mCrSkip ||
|
|
yuvData->mYSize.width < 0 || yuvData->mYSize.height < 0 ||
|
|
yuvData->mCbCrSize.width < 0 || yuvData->mCbCrSize.height < 0 ||
|
|
yuvData->mYStride < 0 || yuvData->mCbCrStride < 0) {
|
|
gfxCriticalError() << "Unusual PlanarYCbCrData: " << yuvData->mYSkip << ","
|
|
<< yuvData->mCbSkip << "," << yuvData->mCrSkip << ", "
|
|
<< yuvData->mYSize.width << "," << yuvData->mYSize.height
|
|
<< ", " << yuvData->mCbCrSize.width << ","
|
|
<< yuvData->mCbCrSize.height << ", " << yuvData->mYStride
|
|
<< "," << yuvData->mCbCrStride;
|
|
return false;
|
|
}
|
|
|
|
gfx::IntSize divisors;
|
|
if (!GuessDivisors(yuvData->mYSize, yuvData->mCbCrSize, &divisors)) {
|
|
gfxCriticalError() << "GuessDivisors failed:" << yuvData->mYSize.width
|
|
<< "," << yuvData->mYSize.height << ", "
|
|
<< yuvData->mCbCrSize.width << ","
|
|
<< yuvData->mCbCrSize.height;
|
|
return false;
|
|
}
|
|
|
|
// --
|
|
|
|
// RED textures aren't valid in GLES2, and ALPHA textures are not valid in
|
|
// desktop GL Core Profiles. So use R8 textures on GL3.0+ and GLES3.0+, but
|
|
// LUMINANCE/LUMINANCE/UNSIGNED_BYTE otherwise.
|
|
GLenum internalFormat;
|
|
GLenum unpackFormat;
|
|
if (mGL->IsAtLeast(gl::ContextProfile::OpenGLCore, 300) ||
|
|
mGL->IsAtLeast(gl::ContextProfile::OpenGLES, 300)) {
|
|
internalFormat = LOCAL_GL_R8;
|
|
unpackFormat = LOCAL_GL_RED;
|
|
} else {
|
|
internalFormat = LOCAL_GL_LUMINANCE;
|
|
unpackFormat = LOCAL_GL_LUMINANCE;
|
|
}
|
|
|
|
// --
|
|
|
|
const ScopedSaveMultiTex saveTex(mGL, 3, LOCAL_GL_TEXTURE_2D);
|
|
const ResetUnpackState reset(mGL);
|
|
const gfx::IntSize yTexSize(yuvData->mYStride, yuvData->mYSize.height);
|
|
const gfx::IntSize uvTexSize(yuvData->mCbCrStride, yuvData->mCbCrSize.height);
|
|
|
|
if (yTexSize != mYuvUploads_YSize || uvTexSize != mYuvUploads_UVSize) {
|
|
mYuvUploads_YSize = yTexSize;
|
|
mYuvUploads_UVSize = uvTexSize;
|
|
|
|
mGL->fActiveTexture(LOCAL_GL_TEXTURE0);
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[0]);
|
|
mGL->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, internalFormat, yTexSize.width,
|
|
yTexSize.height, 0, unpackFormat, LOCAL_GL_UNSIGNED_BYTE,
|
|
nullptr);
|
|
for (int i = 1; i < 3; i++) {
|
|
mGL->fActiveTexture(LOCAL_GL_TEXTURE0 + i);
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[i]);
|
|
mGL->fTexImage2D(LOCAL_GL_TEXTURE_2D, 0, internalFormat, uvTexSize.width,
|
|
uvTexSize.height, 0, unpackFormat,
|
|
LOCAL_GL_UNSIGNED_BYTE, nullptr);
|
|
}
|
|
}
|
|
|
|
// --
|
|
|
|
mGL->fActiveTexture(LOCAL_GL_TEXTURE0);
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[0]);
|
|
mGL->fTexSubImage2D(LOCAL_GL_TEXTURE_2D, 0, 0, 0, yTexSize.width,
|
|
yTexSize.height, unpackFormat, LOCAL_GL_UNSIGNED_BYTE,
|
|
yuvData->mYChannel);
|
|
mGL->fActiveTexture(LOCAL_GL_TEXTURE1);
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[1]);
|
|
mGL->fTexSubImage2D(LOCAL_GL_TEXTURE_2D, 0, 0, 0, uvTexSize.width,
|
|
uvTexSize.height, unpackFormat, LOCAL_GL_UNSIGNED_BYTE,
|
|
yuvData->mCbChannel);
|
|
mGL->fActiveTexture(LOCAL_GL_TEXTURE2);
|
|
mGL->fBindTexture(LOCAL_GL_TEXTURE_2D, mYuvUploads[2]);
|
|
mGL->fTexSubImage2D(LOCAL_GL_TEXTURE_2D, 0, 0, 0, uvTexSize.width,
|
|
uvTexSize.height, unpackFormat, LOCAL_GL_UNSIGNED_BYTE,
|
|
yuvData->mCrChannel);
|
|
|
|
// --
|
|
|
|
const auto& clipRect = yuvData->GetPictureRect();
|
|
const auto srcOrigin = OriginPos::BottomLeft;
|
|
const bool yFlip = (destOrigin != srcOrigin);
|
|
|
|
const DrawBlitProg::BaseArgs baseArgs = {SubRectMat3(clipRect, yTexSize),
|
|
yFlip, destSize, Nothing()};
|
|
const DrawBlitProg::YUVArgs yuvArgs = {
|
|
SubRectMat3(clipRect, uvTexSize, divisors), yuvData->mYUVColorSpace};
|
|
prog->Draw(baseArgs, &yuvArgs);
|
|
return true;
|
|
}
|
|
|
|
// -------------------------------------
|
|
|
|
#ifdef XP_MACOSX
|
|
bool GLBlitHelper::BlitImage(layers::MacIOSurfaceImage* const srcImage,
|
|
const gfx::IntSize& destSize,
|
|
const OriginPos destOrigin) const {
|
|
MacIOSurface* const iosurf = srcImage->GetSurface();
|
|
if (mGL->GetContextType() != GLContextType::CGL) {
|
|
MOZ_ASSERT(false);
|
|
return false;
|
|
}
|
|
const auto glCGL = static_cast<GLContextCGL*>(mGL);
|
|
const auto cglContext = glCGL->GetCGLContext();
|
|
|
|
const auto& srcOrigin = OriginPos::BottomLeft;
|
|
|
|
DrawBlitProg::BaseArgs baseArgs;
|
|
baseArgs.yFlip = (destOrigin != srcOrigin);
|
|
baseArgs.destSize = destSize;
|
|
|
|
DrawBlitProg::YUVArgs yuvArgs;
|
|
yuvArgs.colorSpace = gfx::YUVColorSpace::BT601;
|
|
|
|
const DrawBlitProg::YUVArgs* pYuvArgs = nullptr;
|
|
|
|
auto planes = iosurf->GetPlaneCount();
|
|
if (!planes) {
|
|
planes = 1; // Bad API. No cookie.
|
|
}
|
|
|
|
const GLenum texTarget = LOCAL_GL_TEXTURE_RECTANGLE;
|
|
const char* const fragHeader = kFragHeader_Tex2DRect;
|
|
|
|
const ScopedSaveMultiTex saveTex(mGL, planes, texTarget);
|
|
const ScopedTexture tex0(mGL);
|
|
const ScopedTexture tex1(mGL);
|
|
const ScopedTexture tex2(mGL);
|
|
const GLuint texs[3] = {tex0, tex1, tex2};
|
|
|
|
const auto pixelFormat = iosurf->GetPixelFormat();
|
|
const auto formatChars = (const char*)&pixelFormat;
|
|
const char formatStr[] = {formatChars[3], formatChars[2], formatChars[1],
|
|
formatChars[0], 0};
|
|
if (mGL->ShouldSpew()) {
|
|
printf_stderr("iosurf format: %s (0x%08x)\n", formatStr,
|
|
uint32_t(pixelFormat));
|
|
}
|
|
|
|
const char* fragBody;
|
|
switch (planes) {
|
|
case 1:
|
|
fragBody = kFragBody_RGBA;
|
|
break;
|
|
case 2:
|
|
fragBody = kFragBody_NV12;
|
|
pYuvArgs = &yuvArgs;
|
|
break;
|
|
case 3:
|
|
fragBody = kFragBody_PlanarYUV;
|
|
pYuvArgs = &yuvArgs;
|
|
break;
|
|
default:
|
|
gfxCriticalError() << "Unexpected plane count: " << planes;
|
|
return false;
|
|
}
|
|
|
|
if (pixelFormat == kCVPixelFormatType_422YpCbCr8) {
|
|
fragBody = kFragBody_CrYCb;
|
|
pYuvArgs = &yuvArgs;
|
|
}
|
|
|
|
for (uint32_t p = 0; p < planes; p++) {
|
|
mGL->fActiveTexture(LOCAL_GL_TEXTURE0 + p);
|
|
mGL->fBindTexture(texTarget, texs[p]);
|
|
mGL->TexParams_SetClampNoMips(texTarget);
|
|
|
|
auto err = iosurf->CGLTexImageIOSurface2D(mGL, cglContext, p);
|
|
if (err) {
|
|
return false;
|
|
}
|
|
|
|
if (p == 0) {
|
|
const auto width = iosurf->GetDevicePixelWidth(p);
|
|
const auto height = iosurf->GetDevicePixelHeight(p);
|
|
baseArgs.texMatrix0 = SubRectMat3(0, 0, width, height);
|
|
yuvArgs.texMatrix1 = SubRectMat3(0, 0, width / 2.0, height / 2.0);
|
|
}
|
|
}
|
|
|
|
const auto& prog = GetDrawBlitProg({fragHeader, fragBody});
|
|
prog->Draw(baseArgs, pYuvArgs);
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void GLBlitHelper::DrawBlitTextureToFramebuffer(const GLuint srcTex,
|
|
const gfx::IntSize& srcSize,
|
|
const gfx::IntSize& destSize,
|
|
const GLenum srcTarget) const {
|
|
const char* fragHeader;
|
|
Mat3 texMatrix0;
|
|
switch (srcTarget) {
|
|
case LOCAL_GL_TEXTURE_2D:
|
|
fragHeader = kFragHeader_Tex2D;
|
|
texMatrix0 = Mat3::I();
|
|
break;
|
|
case LOCAL_GL_TEXTURE_RECTANGLE_ARB:
|
|
fragHeader = kFragHeader_Tex2DRect;
|
|
texMatrix0 = SubRectMat3(0, 0, srcSize.width, srcSize.height);
|
|
break;
|
|
default:
|
|
gfxCriticalError() << "Unexpected srcTarget: " << srcTarget;
|
|
return;
|
|
}
|
|
const auto& prog = GetDrawBlitProg({fragHeader, kFragBody_RGBA});
|
|
|
|
const ScopedSaveMultiTex saveTex(mGL, 1, srcTarget);
|
|
mGL->fBindTexture(srcTarget, srcTex);
|
|
|
|
const bool yFlip = false;
|
|
const DrawBlitProg::BaseArgs baseArgs = {texMatrix0, yFlip, destSize,
|
|
Nothing()};
|
|
prog->Draw(baseArgs);
|
|
}
|
|
|
|
// -----------------------------------------------------------------------------
|
|
|
|
void GLBlitHelper::BlitFramebuffer(const gfx::IntRect& srcRect,
|
|
const gfx::IntRect& destRect,
|
|
GLuint filter) const {
|
|
MOZ_ASSERT(mGL->IsSupported(GLFeature::framebuffer_blit));
|
|
|
|
const ScopedGLState scissor(mGL, LOCAL_GL_SCISSOR_TEST, false);
|
|
mGL->fBlitFramebuffer(srcRect.x, srcRect.y, srcRect.XMost(), srcRect.YMost(),
|
|
destRect.x, destRect.y, destRect.XMost(),
|
|
destRect.YMost(), LOCAL_GL_COLOR_BUFFER_BIT, filter);
|
|
}
|
|
|
|
// --
|
|
|
|
void GLBlitHelper::BlitFramebufferToFramebuffer(const GLuint srcFB,
|
|
const GLuint destFB,
|
|
const gfx::IntRect& srcRect,
|
|
const gfx::IntRect& destRect,
|
|
GLuint filter) const {
|
|
MOZ_ASSERT(mGL->IsSupported(GLFeature::framebuffer_blit));
|
|
MOZ_GL_ASSERT(mGL, !srcFB || mGL->fIsFramebuffer(srcFB));
|
|
MOZ_GL_ASSERT(mGL, !destFB || mGL->fIsFramebuffer(destFB));
|
|
|
|
const ScopedBindFramebuffer boundFB(mGL);
|
|
mGL->fBindFramebuffer(LOCAL_GL_READ_FRAMEBUFFER, srcFB);
|
|
mGL->fBindFramebuffer(LOCAL_GL_DRAW_FRAMEBUFFER, destFB);
|
|
|
|
BlitFramebuffer(srcRect, destRect, filter);
|
|
}
|
|
|
|
void GLBlitHelper::BlitTextureToFramebuffer(GLuint srcTex,
|
|
const gfx::IntSize& srcSize,
|
|
const gfx::IntSize& destSize,
|
|
GLenum srcTarget) const {
|
|
MOZ_GL_ASSERT(mGL, mGL->fIsTexture(srcTex));
|
|
|
|
if (mGL->IsSupported(GLFeature::framebuffer_blit)) {
|
|
const ScopedFramebufferForTexture srcWrapper(mGL, srcTex, srcTarget);
|
|
const ScopedBindFramebuffer bindFB(mGL);
|
|
mGL->fBindFramebuffer(LOCAL_GL_READ_FRAMEBUFFER, srcWrapper.FB());
|
|
BlitFramebuffer(gfx::IntRect({}, srcSize), gfx::IntRect({}, destSize));
|
|
return;
|
|
}
|
|
|
|
DrawBlitTextureToFramebuffer(srcTex, srcSize, destSize, srcTarget);
|
|
}
|
|
|
|
void GLBlitHelper::BlitFramebufferToTexture(GLuint destTex,
|
|
const gfx::IntSize& srcSize,
|
|
const gfx::IntSize& destSize,
|
|
GLenum destTarget) const {
|
|
MOZ_GL_ASSERT(mGL, mGL->fIsTexture(destTex));
|
|
|
|
if (mGL->IsSupported(GLFeature::framebuffer_blit)) {
|
|
const ScopedFramebufferForTexture destWrapper(mGL, destTex, destTarget);
|
|
const ScopedBindFramebuffer bindFB(mGL);
|
|
mGL->fBindFramebuffer(LOCAL_GL_DRAW_FRAMEBUFFER, destWrapper.FB());
|
|
BlitFramebuffer(gfx::IntRect({}, srcSize), gfx::IntRect({}, destSize));
|
|
return;
|
|
}
|
|
|
|
ScopedBindTexture autoTex(mGL, destTex, destTarget);
|
|
ScopedGLState scissor(mGL, LOCAL_GL_SCISSOR_TEST, false);
|
|
mGL->fCopyTexSubImage2D(destTarget, 0, 0, 0, 0, 0, srcSize.width,
|
|
srcSize.height);
|
|
}
|
|
|
|
void GLBlitHelper::BlitTextureToTexture(GLuint srcTex, GLuint destTex,
|
|
const gfx::IntSize& srcSize,
|
|
const gfx::IntSize& destSize,
|
|
GLenum srcTarget,
|
|
GLenum destTarget) const {
|
|
MOZ_GL_ASSERT(mGL, mGL->fIsTexture(srcTex));
|
|
MOZ_GL_ASSERT(mGL, mGL->fIsTexture(destTex));
|
|
|
|
// Start down the CopyTexSubImage path, not the DrawBlit path.
|
|
const ScopedFramebufferForTexture srcWrapper(mGL, srcTex, srcTarget);
|
|
const ScopedBindFramebuffer bindFB(mGL, srcWrapper.FB());
|
|
BlitFramebufferToTexture(destTex, srcSize, destSize, destTarget);
|
|
}
|
|
|
|
} // namespace gl
|
|
} // namespace mozilla
|