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-rw-r--r--gfx/gl/GLBlitHelper.cpp1682
1 files changed, 1682 insertions, 0 deletions
diff --git a/gfx/gl/GLBlitHelper.cpp b/gfx/gl/GLBlitHelper.cpp
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+++ b/gfx/gl/GLBlitHelper.cpp
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GLBlitHelper.h"
+
+#include "gfxEnv.h"
+#include "gfxUtils.h"
+#include "GLContext.h"
+#include "GLScreenBuffer.h"
+#include "GPUVideoImage.h"
+#include "HeapCopyOfStackArray.h"
+#include "ImageContainer.h"
+#include "ScopedGLHelpers.h"
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/Casting.h"
+#include "mozilla/Preferences.h"
+#include "mozilla/StaticPrefs_gfx.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/gfx/Matrix.h"
+#include "mozilla/layers/ImageDataSerializer.h"
+#include "mozilla/layers/LayersSurfaces.h"
+
+#ifdef MOZ_WIDGET_ANDROID
+# include "AndroidSurfaceTexture.h"
+# include "GLLibraryEGL.h"
+#endif
+
+#ifdef XP_MACOSX
+# include "GLContextCGL.h"
+# include "MacIOSurfaceImage.h"
+#endif
+
+#ifdef XP_WIN
+# include "mozilla/layers/D3D11ShareHandleImage.h"
+# include "mozilla/layers/D3D11TextureIMFSampleImage.h"
+# include "mozilla/layers/D3D11YCbCrImage.h"
+#endif
+
+#ifdef MOZ_WAYLAND
+# include "mozilla/layers/DMABUFSurfaceImage.h"
+# include "mozilla/widget/DMABufSurface.h"
+#endif
+
+using mozilla::layers::PlanarYCbCrData;
+using mozilla::layers::PlanarYCbCrImage;
+
+namespace mozilla {
+namespace gl {
+
+// --
+
+static const char kFragPreprocHeader[] = R"(
+ #ifdef GL_ES
+ #ifdef GL_FRAGMENT_PRECISION_HIGH
+ #define MAXP highp
+ #endif
+ #else
+ #define MAXP highp
+ #endif
+ #ifndef MAXP
+ #define MAXP mediump
+ #endif
+
+ #if __VERSION__ >= 130
+ #define VARYING in
+ #else
+ #define VARYING varying
+ #endif
+ #if __VERSION__ >= 120
+ #define MAT4X3 mat4x3
+ #else
+ #define MAT4X3 mat4
+ #endif
+)";
+
+// -
+
+const char* const kFragHeader_Tex2D = R"(
+ #define SAMPLER sampler2D
+ #if __VERSION__ >= 130
+ #define TEXTURE texture
+ #else
+ #define TEXTURE texture2D
+ #endif
+)";
+const char* const kFragHeader_Tex2DRect = R"(
+ #define SAMPLER sampler2DRect
+ #if __VERSION__ >= 130
+ #define TEXTURE texture
+ #else
+ #define TEXTURE texture2DRect
+ #endif
+)";
+const char* const kFragHeader_TexExt = R"(
+ #extension GL_OES_EGL_image_external : enable
+ #extension GL_OES_EGL_image_external_essl3 : enable
+ #if __VERSION__ >= 130
+ #define TEXTURE texture
+ #else
+ #define TEXTURE texture2D
+ #endif
+ #define SAMPLER samplerExternalOES
+)";
+
+// -
+
+static const char kFragDeclHeader[] = R"(
+ precision PRECISION float;
+ #if __VERSION__ >= 130
+ #define FRAG_COLOR oFragColor
+ out vec4 FRAG_COLOR;
+ #else
+ #define FRAG_COLOR gl_FragColor
+ #endif
+)";
+
+// -
+
+const char* const kFragSample_OnePlane = R"(
+ VARYING mediump vec2 vTexCoord0;
+ uniform PRECISION SAMPLER uTex0;
+
+ vec4 metaSample() {
+ vec4 src = TEXTURE(uTex0, vTexCoord0);
+ return src;
+ }
+)";
+// Ideally this would just change the color-matrix it uses, but this is
+// acceptable debt for now.
+// `extern` so that we don't get ifdef-dependent const-var-unused Werrors.
+extern const char* const kFragSample_OnePlane_YUV_via_GBR = R"(
+ VARYING mediump vec2 vTexCoord0;
+ uniform PRECISION SAMPLER uTex0;
+
+ vec4 metaSample() {
+ vec4 yuva = TEXTURE(uTex0, vTexCoord0).gbra;
+ return yuva;
+ }
+)";
+const char* const kFragSample_TwoPlane = R"(
+ VARYING mediump vec2 vTexCoord0;
+ VARYING mediump vec2 vTexCoord1;
+ uniform PRECISION SAMPLER uTex0;
+ uniform PRECISION SAMPLER uTex1;
+
+ vec4 metaSample() {
+ vec4 src = TEXTURE(uTex0, vTexCoord0); // Keep r and a.
+ src.gb = TEXTURE(uTex1, vTexCoord1).rg;
+ return src;
+ }
+)";
+const char* const kFragSample_ThreePlane = R"(
+ VARYING mediump vec2 vTexCoord0;
+ VARYING mediump vec2 vTexCoord1;
+ uniform PRECISION SAMPLER uTex0;
+ uniform PRECISION SAMPLER uTex1;
+ uniform PRECISION SAMPLER uTex2;
+
+ vec4 metaSample() {
+ vec4 src = TEXTURE(uTex0, vTexCoord0); // Keep r and a.
+ src.g = TEXTURE(uTex1, vTexCoord1).r;
+ src.b = TEXTURE(uTex2, vTexCoord1).r;
+ return src;
+ }
+)";
+
+// -
+
+const char* const kFragConvert_None = R"(
+ vec3 metaConvert(vec3 src) {
+ return src;
+ }
+)";
+const char* const kFragConvert_BGR = R"(
+ vec3 metaConvert(vec3 src) {
+ return src.bgr;
+ }
+)";
+const char* const kFragConvert_ColorMatrix = R"(
+ uniform mediump MAT4X3 uColorMatrix;
+
+ vec3 metaConvert(vec3 src) {
+ return (uColorMatrix * vec4(src, 1)).rgb;
+ }
+)";
+const char* const kFragConvert_ColorLut = R"(
+ uniform PRECISION sampler3D uColorLut;
+
+ vec3 metaConvert(vec3 src) {
+ // Half-texel filtering hazard!
+ // E.g. For texture size of 2,
+ // E.g. 0.5/2=0.25 is still sampling 100% of texel 0, 0% of texel 1.
+ // For the LUT, we need 0.5/2=0.25 to filter 25/75 texel 0 and 1.
+ // That is, we need to adjust our sampling point such that it's 0.25 of the
+ // way from texel 0's center to texel 1's center.
+ // We need, for N=2:
+ // v=0.0|N=2 => v'=0.5/2
+ // v=1.0|N=2 => v'=1.5/2
+ // For N=3:
+ // v=0.0|N=3 => v'=0.5/3
+ // v=1.0|N=3 => v'=2.5/3
+ // => v' = ( 0.5 + v * (3 - 1) )/3
+ vec3 size = vec3(textureSize(uColorLut, 0));
+ src = (0.5 + src * (size - 1.0)) / size;
+ return texture(uColorLut, src).rgb;
+ }
+)";
+
+// -
+
+const char* const kFragMixin_AlphaMultColors = R"(
+ #define MIXIN_ALPHA_MULT_COLORS
+)";
+const char* const kFragMixin_AlphaClampColors = R"(
+ #define MIXIN_ALPHA_CLAMP_COLORS
+)";
+const char* const kFragMixin_AlphaOne = R"(
+ #define MIXIN_ALPHA_ONE
+)";
+
+// -
+
+static const char kFragBody[] = R"(
+ void main(void) {
+ vec4 src = metaSample();
+ vec4 dst = vec4(metaConvert(src.rgb), src.a);
+
+ #ifdef MIXIN_ALPHA_MULT_COLORS
+ dst.rgb *= dst.a;
+ #endif
+ #ifdef MIXIN_ALPHA_CLAMP_COLORS
+ dst.rgb = min(dst.rgb, vec3(dst.a)); // Ensure valid premult-alpha colors.
+ #endif
+ #ifdef MIXIN_ALPHA_ONE
+ dst.a = 1.0;
+ #endif
+
+ FRAG_COLOR = dst;
+ }
+)";
+
+// --
+
+Mat3 SubRectMat3(const float x, const float y, const float w, const float h) {
+ auto ret = Mat3{};
+ ret.at(0, 0) = w;
+ ret.at(1, 1) = h;
+ ret.at(2, 0) = x;
+ ret.at(2, 1) = y;
+ ret.at(2, 2) = 1.0f;
+ return ret;
+}
+
+Mat3 SubRectMat3(const gfx::IntRect& subrect, const gfx::IntSize& size) {
+ return SubRectMat3(float(subrect.X()) / size.width,
+ float(subrect.Y()) / size.height,
+ float(subrect.Width()) / size.width,
+ float(subrect.Height()) / size.height);
+}
+
+Mat3 SubRectMat3(const gfx::IntRect& bigSubrect, const gfx::IntSize& smallSize,
+ const gfx::IntSize& divisors) {
+ const float x = float(bigSubrect.X()) / divisors.width;
+ const float y = float(bigSubrect.Y()) / divisors.height;
+ const float w = float(bigSubrect.Width()) / divisors.width;
+ const float h = float(bigSubrect.Height()) / divisors.height;
+ return SubRectMat3(x / smallSize.width, y / smallSize.height,
+ w / smallSize.width, h / smallSize.height);
+}
+
+// --
+
+ScopedSaveMultiTex::ScopedSaveMultiTex(GLContext* const gl,
+ const std::vector<uint8_t>& texUnits,
+ const GLenum texTarget)
+ : mGL(*gl),
+ mTexUnits(texUnits),
+ mTexTarget(texTarget),
+ mOldTexUnit(mGL.GetIntAs<GLenum>(LOCAL_GL_ACTIVE_TEXTURE)) {
+ MOZ_RELEASE_ASSERT(texUnits.size() >= 1);
+
+ GLenum texBinding;
+ switch (mTexTarget) {
+ case LOCAL_GL_TEXTURE_2D:
+ texBinding = LOCAL_GL_TEXTURE_BINDING_2D;
+ break;
+ case LOCAL_GL_TEXTURE_3D:
+ texBinding = LOCAL_GL_TEXTURE_BINDING_3D;
+ break;
+ case LOCAL_GL_TEXTURE_RECTANGLE:
+ texBinding = LOCAL_GL_TEXTURE_BINDING_RECTANGLE;
+ break;
+ case LOCAL_GL_TEXTURE_EXTERNAL:
+ texBinding = LOCAL_GL_TEXTURE_BINDING_EXTERNAL;
+ break;
+ default:
+ gfxCriticalError() << "Unhandled texTarget: " << texTarget;
+ MOZ_CRASH();
+ }
+
+ for (const auto i : IntegerRange(mTexUnits.size())) {
+ const auto& unit = mTexUnits[i];
+ mGL.fActiveTexture(LOCAL_GL_TEXTURE0 + unit);
+ if (mGL.IsSupported(GLFeature::sampler_objects)) {
+ mOldTexSampler[i] = mGL.GetIntAs<GLuint>(LOCAL_GL_SAMPLER_BINDING);
+ mGL.fBindSampler(unit, 0);
+ }
+ mOldTex[i] = mGL.GetIntAs<GLuint>(texBinding);
+ }
+}
+
+ScopedSaveMultiTex::~ScopedSaveMultiTex() {
+ // Unbind in reverse order, in case we have repeats.
+ // Order matters because we unbound samplers during ctor, so now we have to
+ // make sure we rebind them in the right order.
+ for (const auto i : Reversed(IntegerRange(mTexUnits.size()))) {
+ const auto& unit = mTexUnits[i];
+ mGL.fActiveTexture(LOCAL_GL_TEXTURE0 + unit);
+ if (mGL.IsSupported(GLFeature::sampler_objects)) {
+ mGL.fBindSampler(unit, mOldTexSampler[i]);
+ }
+ mGL.fBindTexture(mTexTarget, mOldTex[i]);
+ }
+ mGL.fActiveTexture(mOldTexUnit);
+}
+
+// --
+
+class ScopedBindArrayBuffer final {
+ public:
+ GLContext& mGL;
+ const GLuint mOldVBO;
+
+ ScopedBindArrayBuffer(GLContext* const gl, const GLuint vbo)
+ : mGL(*gl), mOldVBO(mGL.GetIntAs<GLuint>(LOCAL_GL_ARRAY_BUFFER_BINDING)) {
+ mGL.fBindBuffer(LOCAL_GL_ARRAY_BUFFER, vbo);
+ }
+
+ ~ScopedBindArrayBuffer() { mGL.fBindBuffer(LOCAL_GL_ARRAY_BUFFER, mOldVBO); }
+};
+
+// --
+
+class ScopedShader final {
+ GLContext& mGL;
+ const GLuint mName;
+
+ public:
+ ScopedShader(GLContext* const gl, const GLenum shaderType)
+ : mGL(*gl), mName(mGL.fCreateShader(shaderType)) {}
+
+ ~ScopedShader() { mGL.fDeleteShader(mName); }
+
+ operator GLuint() const { return mName; }
+};
+
+// --
+
+class SaveRestoreCurrentProgram final {
+ GLContext& mGL;
+ const GLuint mOld;
+
+ public:
+ explicit SaveRestoreCurrentProgram(GLContext* const gl)
+ : mGL(*gl), mOld(mGL.GetIntAs<GLuint>(LOCAL_GL_CURRENT_PROGRAM)) {}
+
+ ~SaveRestoreCurrentProgram() { mGL.fUseProgram(mOld); }
+};
+
+// --
+
+class ScopedDrawBlitState final {
+ GLContext& mGL;
+
+ const bool blend;
+ const bool cullFace;
+ const bool depthTest;
+ const bool dither;
+ const bool polyOffsFill;
+ const bool sampleAToC;
+ const bool sampleCover;
+ const bool scissor;
+ const bool stencil;
+ Maybe<bool> rasterizerDiscard;
+
+ realGLboolean colorMask[4];
+ GLint viewport[4];
+
+ public:
+ ScopedDrawBlitState(GLContext* const gl, const gfx::IntSize& destSize)
+ : mGL(*gl),
+ blend(mGL.PushEnabled(LOCAL_GL_BLEND, false)),
+ cullFace(mGL.PushEnabled(LOCAL_GL_CULL_FACE, false)),
+ depthTest(mGL.PushEnabled(LOCAL_GL_DEPTH_TEST, false)),
+ dither(mGL.PushEnabled(LOCAL_GL_DITHER, true)),
+ polyOffsFill(mGL.PushEnabled(LOCAL_GL_POLYGON_OFFSET_FILL, false)),
+ sampleAToC(mGL.PushEnabled(LOCAL_GL_SAMPLE_ALPHA_TO_COVERAGE, false)),
+ sampleCover(mGL.PushEnabled(LOCAL_GL_SAMPLE_COVERAGE, false)),
+ scissor(mGL.PushEnabled(LOCAL_GL_SCISSOR_TEST, false)),
+ stencil(mGL.PushEnabled(LOCAL_GL_STENCIL_TEST, false)) {
+ if (mGL.IsSupported(GLFeature::transform_feedback2)) {
+ // Technically transform_feedback2 requires transform_feedback, which
+ // actually adds RASTERIZER_DISCARD.
+ rasterizerDiscard =
+ Some(mGL.PushEnabled(LOCAL_GL_RASTERIZER_DISCARD, false));
+ }
+
+ mGL.fGetBooleanv(LOCAL_GL_COLOR_WRITEMASK, colorMask);
+ if (mGL.IsSupported(GLFeature::draw_buffers_indexed)) {
+ mGL.fColorMaski(0, true, true, true, true);
+ } else {
+ mGL.fColorMask(true, true, true, true);
+ }
+
+ mGL.fGetIntegerv(LOCAL_GL_VIEWPORT, viewport);
+ MOZ_ASSERT(destSize.width && destSize.height);
+ mGL.fViewport(0, 0, destSize.width, destSize.height);
+ }
+
+ ~ScopedDrawBlitState() {
+ mGL.SetEnabled(LOCAL_GL_BLEND, blend);
+ mGL.SetEnabled(LOCAL_GL_CULL_FACE, cullFace);
+ mGL.SetEnabled(LOCAL_GL_DEPTH_TEST, depthTest);
+ mGL.SetEnabled(LOCAL_GL_DITHER, dither);
+ mGL.SetEnabled(LOCAL_GL_POLYGON_OFFSET_FILL, polyOffsFill);
+ mGL.SetEnabled(LOCAL_GL_SAMPLE_ALPHA_TO_COVERAGE, sampleAToC);
+ mGL.SetEnabled(LOCAL_GL_SAMPLE_COVERAGE, sampleCover);
+ mGL.SetEnabled(LOCAL_GL_SCISSOR_TEST, scissor);
+ mGL.SetEnabled(LOCAL_GL_STENCIL_TEST, stencil);
+ if (rasterizerDiscard) {
+ mGL.SetEnabled(LOCAL_GL_RASTERIZER_DISCARD, rasterizerDiscard.value());
+ }
+
+ if (mGL.IsSupported(GLFeature::draw_buffers_indexed)) {
+ mGL.fColorMaski(0, colorMask[0], colorMask[1], colorMask[2],
+ colorMask[3]);
+ } else {
+ mGL.fColorMask(colorMask[0], colorMask[1], colorMask[2], colorMask[3]);
+ }
+ mGL.fViewport(viewport[0], viewport[1], viewport[2], viewport[3]);
+ }
+};
+
+// --
+
+DrawBlitProg::DrawBlitProg(const GLBlitHelper* const parent, const GLuint prog)
+ : mParent(*parent),
+ mProg(prog),
+ mLoc_uDestMatrix(mParent.mGL->fGetUniformLocation(mProg, "uDestMatrix")),
+ mLoc_uTexMatrix0(mParent.mGL->fGetUniformLocation(mProg, "uTexMatrix0")),
+ mLoc_uTexMatrix1(mParent.mGL->fGetUniformLocation(mProg, "uTexMatrix1")),
+ mLoc_uColorLut(mParent.mGL->fGetUniformLocation(mProg, "uColorLut")),
+ mLoc_uColorMatrix(
+ mParent.mGL->fGetUniformLocation(mProg, "uColorMatrix")) {
+ const auto& gl = mParent.mGL;
+ MOZ_GL_ASSERT(gl, mLoc_uDestMatrix != -1); // Required
+ MOZ_GL_ASSERT(gl, mLoc_uTexMatrix0 != -1); // Required
+ if (mLoc_uColorMatrix != -1) {
+ MOZ_GL_ASSERT(gl, mLoc_uTexMatrix1 != -1);
+
+ int32_t numActiveUniforms = 0;
+ gl->fGetProgramiv(mProg, LOCAL_GL_ACTIVE_UNIFORMS, &numActiveUniforms);
+
+ const size_t kMaxNameSize = 32;
+ char name[kMaxNameSize] = {0};
+ GLint size = 0;
+ GLenum type = 0;
+ for (int32_t i = 0; i < numActiveUniforms; i++) {
+ gl->fGetActiveUniform(mProg, i, kMaxNameSize, nullptr, &size, &type,
+ name);
+ if (strcmp("uColorMatrix", name) == 0) {
+ mType_uColorMatrix = type;
+ break;
+ }
+ }
+ MOZ_GL_ASSERT(gl, mType_uColorMatrix);
+ }
+}
+
+DrawBlitProg::~DrawBlitProg() {
+ const auto& gl = mParent.mGL;
+ if (!gl->MakeCurrent()) return;
+
+ gl->fDeleteProgram(mProg);
+}
+
+void DrawBlitProg::Draw(const BaseArgs& args,
+ const YUVArgs* const argsYUV) const {
+ const auto& gl = mParent.mGL;
+
+ const SaveRestoreCurrentProgram oldProg(gl);
+ gl->fUseProgram(mProg);
+
+ // --
+
+ Mat3 destMatrix;
+ if (args.destRect) {
+ const auto& destRect = args.destRect.value();
+ destMatrix = SubRectMat3(destRect.X() / args.destSize.width,
+ destRect.Y() / args.destSize.height,
+ destRect.Width() / args.destSize.width,
+ destRect.Height() / args.destSize.height);
+ } else {
+ destMatrix = Mat3::I();
+ }
+
+ if (args.yFlip) {
+ // Apply the y-flip matrix before the destMatrix.
+ // That is, flip y=[0-1] to y=[1-0] before we restrict to the destRect.
+ destMatrix.at(2, 1) += destMatrix.at(1, 1);
+ destMatrix.at(1, 1) *= -1.0f;
+ }
+
+ gl->fUniformMatrix3fv(mLoc_uDestMatrix, 1, false, destMatrix.m);
+ gl->fUniformMatrix3fv(mLoc_uTexMatrix0, 1, false, args.texMatrix0.m);
+
+ if (args.texUnitForColorLut) {
+ gl->fUniform1i(mLoc_uColorLut,
+ AssertedCast<GLint>(*args.texUnitForColorLut));
+ }
+
+ MOZ_ASSERT(bool(argsYUV) == (mLoc_uColorMatrix != -1));
+ if (argsYUV) {
+ gl->fUniformMatrix3fv(mLoc_uTexMatrix1, 1, false, argsYUV->texMatrix1.m);
+
+ if (mLoc_uColorMatrix != -1) {
+ const auto& colorMatrix =
+ gfxUtils::YuvToRgbMatrix4x4ColumnMajor(*argsYUV->colorSpaceForMatrix);
+ float mat4x3[4 * 3];
+ switch (mType_uColorMatrix) {
+ case LOCAL_GL_FLOAT_MAT4:
+ gl->fUniformMatrix4fv(mLoc_uColorMatrix, 1, false, colorMatrix);
+ break;
+ case LOCAL_GL_FLOAT_MAT4x3:
+ for (int x = 0; x < 4; x++) {
+ for (int y = 0; y < 3; y++) {
+ mat4x3[3 * x + y] = colorMatrix[4 * x + y];
+ }
+ }
+ gl->fUniformMatrix4x3fv(mLoc_uColorMatrix, 1, false, mat4x3);
+ break;
+ default:
+ gfxCriticalError()
+ << "Bad mType_uColorMatrix: " << gfx::hexa(mType_uColorMatrix);
+ }
+ }
+ }
+
+ // --
+
+ const ScopedDrawBlitState drawState(gl, args.destSize);
+
+ GLuint oldVAO;
+ GLint vaa0Enabled;
+ GLint vaa0Size;
+ GLenum vaa0Type;
+ GLint vaa0Normalized;
+ GLsizei vaa0Stride;
+ GLvoid* vaa0Pointer;
+ GLuint vaa0Buffer;
+ if (mParent.mQuadVAO) {
+ oldVAO = gl->GetIntAs<GLuint>(LOCAL_GL_VERTEX_ARRAY_BINDING);
+ gl->fBindVertexArray(mParent.mQuadVAO);
+ } else {
+ // clang-format off
+ gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING, (GLint*)&vaa0Buffer);
+ gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_ENABLED, &vaa0Enabled);
+ gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_SIZE, &vaa0Size);
+ gl->fGetVertexAttribiv(0, LOCAL_GL_VERTEX_ATTRIB_ARRAY_TYPE, (GLint*)&vaa0Type);
+ 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);
+ }
+ // The current VERTEX_ARRAY_BINDING is not necessarily the same as the
+ // buffer set for vaa0Buffer.
+ const ScopedBindArrayBuffer bindVBO(gl, vaa0Buffer);
+ 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();
+
+ if (mGL->IsGLES()) {
+ // If you run into problems on old android devices, it might be 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 then we lose out on
+ // e.g. sampler3D. Let's just try 300 for now, and if we get regressions
+ // we'll add an essl100 fallback.
+ if (glslVersion >= 300) {
+ mDrawBlitProg_VersionLine = nsCString("#version 300 es\n");
+ } else {
+ 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 auto precisionPref = StaticPrefs::gfx_blithelper_precision();
+ const char* precision;
+ switch (precisionPref) {
+ case 0:
+ precision = "lowp";
+ break;
+ case 1:
+ precision = "mediump";
+ break;
+ default:
+ if (precisionPref != 2) {
+ NS_WARNING("gfx.blithelper.precision clamped to 2.");
+ }
+ precision = "MAXP";
+ break;
+ }
+
+ nsPrintfCString precisionLine("\n#define PRECISION %s\n", precision);
+
+ // -
+
+ const ScopedShader fs(mGL, LOCAL_GL_FRAGMENT_SHADER);
+
+ std::vector<const char*> parts;
+ {
+ parts.push_back(mDrawBlitProg_VersionLine.get());
+ parts.push_back(kFragPreprocHeader);
+ if (key.fragHeader) {
+ parts.push_back(key.fragHeader);
+ }
+ parts.push_back(precisionLine.BeginReading());
+ parts.push_back(kFragDeclHeader);
+ for (const auto& part : key.fragParts) {
+ if (part) {
+ parts.push_back(part);
+ }
+ }
+ parts.push_back(kFragBody);
+ }
+
+ const auto PrintFragSource = [&]() {
+ printf_stderr("Frag source:\n");
+ int i = 0;
+ for (const auto& part : parts) {
+ printf_stderr("// parts[%i]:\n%s\n", i, part);
+ i += 1;
+ }
+ };
+ if (gfxEnv::MOZ_DUMP_GLBLITHELPER()) {
+ PrintFragSource();
+ }
+
+ mGL->fShaderSource(fs, AssertedCast<GLint>(parts.size()), parts.data(),
+ nullptr);
+ mGL->fCompileShader(fs);
+
+ const auto prog = mGL->fCreateProgram();
+ mGL->fAttachShader(prog, mDrawBlitProg_VertShader);
+ mGL->fAttachShader(prog, fs);
+
+ mGL->fBindAttribLocation(prog, 0, "aVert");
+ 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) continue;
+ 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;
+
+ const auto logs =
+ std::string("DrawBlitProg link failed:\n") + "progLog: " + progLog.get() +
+ "\n" + "vsLog: " + vsLog.get() + "\n" + "fsLog: " + fsLog.get() + "\n";
+ gfxCriticalError() << logs;
+
+ PrintFragSource();
+
+ MOZ_CRASH("DrawBlitProg link failed");
+}
+
+// -----------------------------------------------------------------------------
+
+#ifdef XP_MACOSX
+static RefPtr<MacIOSurface> LookupSurface(
+ const layers::SurfaceDescriptorMacIOSurface& sd) {
+ return MacIOSurface::LookupSurface(sd.surfaceId(), !sd.isOpaque(),
+ sd.yUVColorSpace());
+}
+#endif
+
+bool GLBlitHelper::BlitSdToFramebuffer(const layers::SurfaceDescriptor& asd,
+ const gfx::IntSize& destSize,
+ const OriginPos destOrigin) {
+ const auto sdType = asd.type();
+ switch (sdType) {
+ case layers::SurfaceDescriptor::TSurfaceDescriptorBuffer: {
+ const auto& sd = asd.get_SurfaceDescriptorBuffer();
+ const auto yuvData = PlanarYCbCrData::From(sd);
+ if (!yuvData) {
+ gfxCriticalNote << "[GLBlitHelper::BlitSdToFramebuffer] "
+ "PlanarYCbCrData::From failed";
+ return false;
+ }
+ return BlitPlanarYCbCr(*yuvData, destSize, destOrigin);
+ }
+#ifdef XP_WIN
+ case layers::SurfaceDescriptor::TSurfaceDescriptorD3D10: {
+ const auto& sd = asd.get_SurfaceDescriptorD3D10();
+ return BlitDescriptor(sd, destSize, destOrigin);
+ }
+ case layers::SurfaceDescriptor::TSurfaceDescriptorDXGIYCbCr: {
+ const auto& sd = asd.get_SurfaceDescriptorDXGIYCbCr();
+ return BlitDescriptor(sd, destSize, destOrigin);
+ }
+#endif
+#ifdef XP_MACOSX
+ case layers::SurfaceDescriptor::TSurfaceDescriptorMacIOSurface: {
+ const auto& sd = asd.get_SurfaceDescriptorMacIOSurface();
+ const auto surf = LookupSurface(sd);
+ if (!surf) {
+ NS_WARNING("LookupSurface(MacIOSurface) failed");
+ // Sometimes that frame for our handle gone already. That's life, for
+ // now.
+ return false;
+ }
+ return BlitImage(surf, destSize, destOrigin);
+ }
+#endif
+#ifdef MOZ_WIDGET_ANDROID
+ case layers::SurfaceDescriptor::TSurfaceTextureDescriptor: {
+ const auto& sd = asd.get_SurfaceTextureDescriptor();
+ auto surfaceTexture = java::GeckoSurfaceTexture::Lookup(sd.handle());
+ return Blit(surfaceTexture, destSize, destOrigin);
+ }
+#endif
+#ifdef MOZ_WAYLAND
+ case layers::SurfaceDescriptor::TSurfaceDescriptorDMABuf: {
+ const auto& sd = asd.get_SurfaceDescriptorDMABuf();
+ RefPtr<DMABufSurface> surface = DMABufSurface::CreateDMABufSurface(sd);
+ return Blit(surface, destSize, destOrigin);
+ }
+#endif
+ default:
+ return false;
+ }
+}
+
+bool GLBlitHelper::BlitImageToFramebuffer(layers::Image* const srcImage,
+ const gfx::IntSize& destSize,
+ const OriginPos destOrigin) {
+ switch (srcImage->GetFormat()) {
+ case ImageFormat::PLANAR_YCBCR: {
+ const auto srcImage2 = static_cast<PlanarYCbCrImage*>(srcImage);
+ const auto data = srcImage2->GetData();
+ return BlitPlanarYCbCr(*data, destSize, destOrigin);
+ }
+
+ case ImageFormat::SURFACE_TEXTURE: {
+#ifdef MOZ_WIDGET_ANDROID
+ auto* image = srcImage->AsSurfaceTextureImage();
+ MOZ_ASSERT(image);
+ auto surfaceTexture =
+ java::GeckoSurfaceTexture::Lookup(image->GetHandle());
+ return Blit(surfaceTexture, 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
+
+ case ImageFormat::GPU_VIDEO:
+ return BlitImage(static_cast<layers::GPUVideoImage*>(srcImage), destSize,
+ destOrigin);
+#ifdef XP_WIN
+ case ImageFormat::D3D11_SHARE_HANDLE_TEXTURE:
+ return BlitImage(static_cast<layers::D3D11ShareHandleImage*>(srcImage),
+ destSize, destOrigin);
+ case ImageFormat::D3D11_TEXTURE_IMF_SAMPLE:
+ return BlitImage(
+ static_cast<layers::D3D11TextureIMFSampleImage*>(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
+ case ImageFormat::DCOMP_SURFACE:
+ return false;
+#else
+ case ImageFormat::D3D11_SHARE_HANDLE_TEXTURE:
+ case ImageFormat::D3D11_TEXTURE_IMF_SAMPLE:
+ case ImageFormat::D3D11_YCBCR_IMAGE:
+ case ImageFormat::D3D9_RGB32_TEXTURE:
+ case ImageFormat::DCOMP_SURFACE:
+ MOZ_ASSERT(false);
+ return false;
+#endif
+ case ImageFormat::DMABUF:
+#ifdef MOZ_WAYLAND
+ return BlitImage(static_cast<layers::DMABUFSurfaceImage*>(srcImage),
+ destSize, destOrigin);
+#else
+ return false;
+#endif
+ case ImageFormat::MOZ2D_SURFACE:
+ case ImageFormat::NV_IMAGE:
+ case ImageFormat::OVERLAY_IMAGE:
+ case ImageFormat::SHARED_RGB:
+ case ImageFormat::TEXTURE_WRAPPER:
+ return false; // todo
+ }
+ return false;
+}
+
+// -------------------------------------
+
+#ifdef MOZ_WIDGET_ANDROID
+bool GLBlitHelper::Blit(const java::GeckoSurfaceTexture::Ref& surfaceTexture,
+ const gfx::IntSize& destSize,
+ const OriginPos destOrigin) const {
+ 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();
+ const auto transform3 = Mat3::I();
+ // const auto srcOrigin = OriginPos::TopLeft;
+ const auto srcOrigin = OriginPos::BottomLeft;
+ const bool yFlip = (srcOrigin != destOrigin);
+ const auto& prog = GetDrawBlitProg(
+ {kFragHeader_TexExt, {kFragSample_OnePlane, kFragConvert_None}});
+ 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::BlitPlanarYCbCr(const PlanarYCbCrData& yuvData,
+ const gfx::IntSize& destSize,
+ const OriginPos destOrigin) {
+ const auto& prog = GetDrawBlitProg(
+ {kFragHeader_Tex2D, {kFragSample_ThreePlane, kFragConvert_ColorMatrix}});
+
+ 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();
+ }
+
+ // --
+
+ auto ySize = yuvData.YDataSize();
+ auto cbcrSize = yuvData.CbCrDataSize();
+ if (yuvData.mYSkip || yuvData.mCbSkip || yuvData.mCrSkip || ySize.width < 0 ||
+ ySize.height < 0 || cbcrSize.width < 0 || cbcrSize.height < 0 ||
+ yuvData.mYStride < 0 || yuvData.mCbCrStride < 0) {
+ gfxCriticalError() << "Unusual PlanarYCbCrData: " << yuvData.mYSkip << ","
+ << yuvData.mCbSkip << "," << yuvData.mCrSkip << ", "
+ << ySize.width << "," << ySize.height << ", "
+ << cbcrSize.width << "," << cbcrSize.height << ", "
+ << yuvData.mYStride << "," << yuvData.mCbCrStride;
+ return false;
+ }
+
+ gfx::IntSize divisors;
+ switch (yuvData.mChromaSubsampling) {
+ case gfx::ChromaSubsampling::FULL:
+ divisors = gfx::IntSize(1, 1);
+ break;
+ case gfx::ChromaSubsampling::HALF_WIDTH:
+ divisors = gfx::IntSize(2, 1);
+ break;
+ case gfx::ChromaSubsampling::HALF_WIDTH_AND_HEIGHT:
+ divisors = gfx::IntSize(2, 2);
+ break;
+ default:
+ gfxCriticalError() << "Unknown chroma subsampling:"
+ << int(yuvData.mChromaSubsampling);
+ 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, {0, 1, 2}, LOCAL_GL_TEXTURE_2D);
+ const ResetUnpackState reset(mGL);
+ const gfx::IntSize yTexSize(yuvData.mYStride, yuvData.YDataSize().height);
+ const gfx::IntSize uvTexSize(yuvData.mCbCrStride,
+ yuvData.CbCrDataSize().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.mPictureRect;
+ 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), Some(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 {
+ return BlitImage(srcImage->GetSurface(), destSize, destOrigin);
+}
+
+static std::string IntAsAscii(const int x) {
+ std::string str;
+ str.reserve(6);
+ auto u = static_cast<unsigned int>(x);
+ while (u) {
+ str.insert(str.begin(), u & 0xff);
+ u >>= 8;
+ }
+ str.insert(str.begin(), '\'');
+ str.push_back('\'');
+ return str;
+}
+
+bool GLBlitHelper::BlitImage(MacIOSurface* const iosurf,
+ const gfx::IntSize& destSize,
+ const OriginPos destOrigin) const {
+ if (!iosurf) {
+ gfxCriticalError() << "Null MacIOSurface for GLBlitHelper::BlitImage";
+ return false;
+ }
+ 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;
+
+ // TODO: The colorspace is known by the IOSurface, why override it?
+ // See GetYUVColorSpace/GetFullRange()
+ DrawBlitProg::YUVArgs yuvArgs;
+ yuvArgs.colorSpaceForMatrix = Some(iosurf->GetYUVColorSpace());
+
+ const DrawBlitProg::YUVArgs* pYuvArgs = nullptr;
+
+ auto planes = iosurf->GetPlaneCount();
+ if (!planes) {
+ planes = 1; // Bad API. No cookie.
+ }
+
+ const GLenum texTarget = LOCAL_GL_TEXTURE_RECTANGLE;
+
+ std::vector<uint8_t> texUnits;
+ for (uint8_t i = 0; i < planes; i++) {
+ texUnits.push_back(i);
+ }
+ const ScopedSaveMultiTex saveTex(mGL, texUnits, 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();
+ if (mGL->ShouldSpew()) {
+ const auto formatStr = IntAsAscii(pixelFormat);
+ printf_stderr("iosurf format: %s (0x%08x)\n", formatStr.c_str(),
+ pixelFormat);
+ }
+
+ const char* fragSample;
+ switch (planes) {
+ case 1:
+ switch (pixelFormat) {
+ case kCVPixelFormatType_24RGB:
+ case kCVPixelFormatType_24BGR:
+ case kCVPixelFormatType_32ARGB:
+ case kCVPixelFormatType_32BGRA:
+ case kCVPixelFormatType_32ABGR:
+ case kCVPixelFormatType_32RGBA:
+ case kCVPixelFormatType_64ARGB:
+ case kCVPixelFormatType_48RGB:
+ fragSample = kFragSample_OnePlane;
+ break;
+ case kCVPixelFormatType_422YpCbCr8:
+ case kCVPixelFormatType_422YpCbCr8_yuvs:
+ fragSample = kFragSample_OnePlane_YUV_via_GBR;
+ pYuvArgs = &yuvArgs;
+ break;
+ default: {
+ std::string str;
+ if (pixelFormat <= 0xff) {
+ str = std::to_string(pixelFormat);
+ } else {
+ str = IntAsAscii(pixelFormat);
+ }
+ gfxCriticalError() << "Unhandled kCVPixelFormatType_*: " << str;
+ // Probably YUV though
+ fragSample = kFragSample_OnePlane_YUV_via_GBR;
+ pYuvArgs = &yuvArgs;
+ break;
+ }
+ }
+ break;
+ case 2:
+ fragSample = kFragSample_TwoPlane;
+ pYuvArgs = &yuvArgs;
+ break;
+ case 3:
+ fragSample = kFragSample_ThreePlane;
+ pYuvArgs = &yuvArgs;
+ break;
+ default:
+ gfxCriticalError() << "Unexpected plane count: " << planes;
+ return false;
+ }
+
+ 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({
+ kFragHeader_Tex2DRect,
+ {fragSample, kFragConvert_ColorMatrix},
+ });
+ 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 bool srcIsBGRA) const {
+ const char* fragHeader = nullptr;
+ 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 fragConvert = srcIsBGRA ? kFragConvert_BGR : kFragConvert_None;
+ const auto& prog = GetDrawBlitProg({
+ fragHeader,
+ {kFragSample_OnePlane, fragConvert},
+ });
+
+ const ScopedSaveMultiTex saveTex(mGL, {0}, srcTarget);
+ mGL->fActiveTexture(LOCAL_GL_TEXTURE0);
+ 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);
+}
+
+// -------------------------------------
+
+bool GLBlitHelper::BlitImage(layers::GPUVideoImage* const srcImage,
+ const gfx::IntSize& destSize,
+ const OriginPos destOrigin) const {
+ const auto& data = srcImage->GetData();
+ if (!data) return false;
+
+ const auto& desc = data->SD();
+
+ MOZ_ASSERT(
+ desc.type() ==
+ layers::SurfaceDescriptorGPUVideo::TSurfaceDescriptorRemoteDecoder);
+ const auto& subdescUnion =
+ desc.get_SurfaceDescriptorRemoteDecoder().subdesc();
+ switch (subdescUnion.type()) {
+#ifdef MOZ_WAYLAND
+ case layers::RemoteDecoderVideoSubDescriptor::TSurfaceDescriptorDMABuf: {
+ const auto& subdesc = subdescUnion.get_SurfaceDescriptorDMABuf();
+ RefPtr<DMABufSurface> surface =
+ DMABufSurface::CreateDMABufSurface(subdesc);
+ return Blit(surface, destSize, destOrigin);
+ }
+#endif
+#ifdef XP_WIN
+ case layers::RemoteDecoderVideoSubDescriptor::TSurfaceDescriptorD3D10: {
+ const auto& subdesc = subdescUnion.get_SurfaceDescriptorD3D10();
+ return BlitDescriptor(subdesc, destSize, destOrigin);
+ }
+ case layers::RemoteDecoderVideoSubDescriptor::TSurfaceDescriptorDXGIYCbCr: {
+ const auto& subdesc = subdescUnion.get_SurfaceDescriptorDXGIYCbCr();
+ return BlitDescriptor(subdesc, destSize, destOrigin);
+ }
+#endif
+#ifdef XP_MACOSX
+ case layers::RemoteDecoderVideoSubDescriptor::
+ TSurfaceDescriptorMacIOSurface: {
+ const auto& subdesc = subdescUnion.get_SurfaceDescriptorMacIOSurface();
+ RefPtr<MacIOSurface> surface = MacIOSurface::LookupSurface(
+ subdesc.surfaceId(), !subdesc.isOpaque(), subdesc.yUVColorSpace());
+ MOZ_ASSERT(surface);
+ if (!surface) {
+ return false;
+ }
+ return BlitImage(surface, destSize, destOrigin);
+ }
+#endif
+ case layers::RemoteDecoderVideoSubDescriptor::Tnull_t:
+ // This GPUVideoImage isn't directly readable outside the GPU process.
+ // Abort.
+ return false;
+ default:
+ gfxCriticalError() << "Unhandled subdesc type: "
+ << uint32_t(subdescUnion.type());
+ return false;
+ }
+}
+
+// -------------------------------------
+#ifdef MOZ_WAYLAND
+bool GLBlitHelper::Blit(DMABufSurface* surface, const gfx::IntSize& destSize,
+ OriginPos destOrigin) const {
+ const auto& srcOrigin = OriginPos::BottomLeft;
+
+ DrawBlitProg::BaseArgs baseArgs;
+ baseArgs.yFlip = (destOrigin != srcOrigin);
+ baseArgs.destSize = destSize;
+
+ // TODO: The colorspace is known by the DMABUFSurface, why override it?
+ // See GetYUVColorSpace/GetFullRange()
+ DrawBlitProg::YUVArgs yuvArgs;
+ yuvArgs.colorSpaceForMatrix = Some(surface->GetYUVColorSpace());
+
+ const DrawBlitProg::YUVArgs* pYuvArgs = nullptr;
+ const auto planes = surface->GetTextureCount();
+
+ // -
+ // Ensure textures for all planes have been created.
+
+ const bool createTextures = [&]() {
+ for (int i = 0; i < planes; i++) {
+ if (!surface->GetTexture(i)) {
+ return true;
+ }
+ }
+ return false;
+ }();
+
+ bool didCreateTexture = false;
+ auto releaseTextures = mozilla::MakeScopeExit([&] {
+ if (didCreateTexture) {
+ surface->ReleaseTextures();
+ }
+ });
+
+ if (createTextures) {
+ for (int i = 0; i < planes; i++) {
+ if (surface->GetTexture(i)) {
+ continue;
+ }
+ if (!surface->CreateTexture(mGL, i)) {
+ LOGDMABUF(("GLBlitHelper::Blit(): Failed to create DMABuf textures."));
+ return false;
+ }
+ didCreateTexture = true;
+ }
+ }
+
+ // -
+
+ const GLenum texTarget = LOCAL_GL_TEXTURE_2D;
+
+ std::vector<uint8_t> texUnits;
+ for (uint8_t i = 0; i < planes; i++) {
+ texUnits.push_back(i);
+ }
+ const ScopedSaveMultiTex saveTex(mGL, texUnits, texTarget);
+ const auto pixelFormat = surface->GetSurfaceType();
+
+ const char* fragSample;
+ auto fragConvert = kFragConvert_None;
+ switch (pixelFormat) {
+ case DMABufSurface::SURFACE_RGBA:
+ fragSample = kFragSample_OnePlane;
+ break;
+ case DMABufSurface::SURFACE_NV12:
+ fragSample = kFragSample_TwoPlane;
+ pYuvArgs = &yuvArgs;
+ fragConvert = kFragConvert_ColorMatrix;
+ break;
+ case DMABufSurface::SURFACE_YUV420:
+ fragSample = kFragSample_ThreePlane;
+ pYuvArgs = &yuvArgs;
+ fragConvert = kFragConvert_ColorMatrix;
+ break;
+ default:
+ gfxCriticalError() << "Unexpected pixel format: " << pixelFormat;
+ return false;
+ }
+
+ for (const auto p : IntegerRange(planes)) {
+ mGL->fActiveTexture(LOCAL_GL_TEXTURE0 + p);
+ mGL->fBindTexture(texTarget, surface->GetTexture(p));
+ mGL->TexParams_SetClampNoMips(texTarget);
+ }
+
+ // We support only NV12/YUV420 formats only with 1/2 texture scale.
+ // We don't set cliprect as DMABus textures are created without padding.
+ baseArgs.texMatrix0 = SubRectMat3(0, 0, 1, 1);
+ yuvArgs.texMatrix1 = SubRectMat3(0, 0, 1, 1);
+
+ const auto& prog =
+ GetDrawBlitProg({kFragHeader_Tex2D, {fragSample, fragConvert}});
+ prog->Draw(baseArgs, pYuvArgs);
+
+ return true;
+}
+
+bool GLBlitHelper::BlitImage(layers::DMABUFSurfaceImage* srcImage,
+ const gfx::IntSize& destSize,
+ OriginPos destOrigin) const {
+ DMABufSurface* surface = srcImage->GetSurface();
+ if (!surface) {
+ gfxCriticalError() << "Null DMABUFSurface for GLBlitHelper::BlitImage";
+ return false;
+ }
+ return Blit(surface, destSize, destOrigin);
+}
+#endif
+
+// -
+
+template <size_t N>
+static void PushUnorm(uint32_t* const out, const float inVal) {
+ const uint32_t mask = (1 << N) - 1;
+ auto fval = inVal;
+ fval = std::max(0.0f, std::min(fval, 1.0f));
+ fval *= mask;
+ fval = roundf(fval);
+ auto ival = static_cast<uint32_t>(fval);
+ ival &= mask;
+
+ *out <<= N;
+ *out |= ival;
+}
+
+static uint32_t toRgb10A2(const color::vec4& val) {
+ // R in LSB
+ uint32_t ret = 0;
+ PushUnorm<2>(&ret, val.w());
+ PushUnorm<10>(&ret, val.z());
+ PushUnorm<10>(&ret, val.y());
+ PushUnorm<10>(&ret, val.x());
+ return ret;
+}
+
+std::shared_ptr<gl::Texture> GLBlitHelper::GetColorLutTex(
+ const ColorLutKey& key) const {
+ auto& weak = mColorLutTexMap[key];
+ auto strong = weak.lock();
+ if (!strong) {
+ auto& gl = *mGL;
+ strong = std::make_shared<gl::Texture>(gl);
+ weak = strong;
+
+ const auto ct = color::ColorspaceTransform::Create(key.src, key.dst);
+
+ // -
+
+ const auto minLutSize = color::ivec3{2};
+ const auto maxLutSize = color::ivec3{256};
+ auto lutSize = minLutSize;
+ if (ct.srcSpace.yuv) {
+ lutSize.x(int(StaticPrefs::gfx_blithelper_lut_size_ycbcr_y()));
+ lutSize.y(int(StaticPrefs::gfx_blithelper_lut_size_ycbcr_cb()));
+ lutSize.z(int(StaticPrefs::gfx_blithelper_lut_size_ycbcr_cr()));
+ } else {
+ lutSize.x(int(StaticPrefs::gfx_blithelper_lut_size_rgb_r()));
+ lutSize.y(int(StaticPrefs::gfx_blithelper_lut_size_rgb_g()));
+ lutSize.z(int(StaticPrefs::gfx_blithelper_lut_size_rgb_b()));
+ }
+ lutSize = max(minLutSize, min(lutSize, maxLutSize)); // Clamp
+
+ const auto lut = ct.ToLut3(lutSize);
+ const auto& size = lut.size;
+
+ // -
+
+ constexpr GLenum target = LOCAL_GL_TEXTURE_3D;
+ const auto bind = gl::ScopedBindTexture(&gl, strong->name, target);
+ gl.fTexParameteri(target, LOCAL_GL_TEXTURE_WRAP_S, LOCAL_GL_CLAMP_TO_EDGE);
+ gl.fTexParameteri(target, LOCAL_GL_TEXTURE_WRAP_T, LOCAL_GL_CLAMP_TO_EDGE);
+ gl.fTexParameteri(target, LOCAL_GL_TEXTURE_WRAP_R, LOCAL_GL_CLAMP_TO_EDGE);
+ gl.fTexParameteri(target, LOCAL_GL_TEXTURE_MAG_FILTER, LOCAL_GL_LINEAR);
+ gl.fTexParameteri(target, LOCAL_GL_TEXTURE_MIN_FILTER, LOCAL_GL_LINEAR);
+
+ bool useFloat16 = true;
+ if (useFloat16) {
+ // Use rgba16f, which we can thankfully upload as rgba32f
+ static_assert(sizeof(color::vec4) == sizeof(float) * 4);
+ std::vector<color::vec4> uploadData;
+ uploadData.reserve(lut.data.size());
+ for (const auto& src : lut.data) {
+ const auto dst = color::vec4{src, 1};
+ uploadData.push_back(dst);
+ }
+
+ gl.fTexStorage3D(target, 1, LOCAL_GL_RGBA16F, size.x(), size.y(),
+ size.z());
+ gl.fTexSubImage3D(target, 0, 0, 0, 0, size.x(), size.y(), size.z(),
+ LOCAL_GL_RGBA, LOCAL_GL_FLOAT, uploadData.data());
+ } else {
+ // Use Rgb10A2
+ std::vector<uint32_t> uploadData;
+ uploadData.reserve(lut.data.size());
+ for (const auto& src : lut.data) {
+ const auto dst = toRgb10A2({src, 1});
+ uploadData.push_back(dst);
+ }
+
+ gl.fTexStorage3D(target, 1, LOCAL_GL_RGB10_A2, size.x(), size.y(),
+ size.z());
+ gl.fTexSubImage3D(target, 0, 0, 0, 0, size.x(), size.y(), size.z(),
+ LOCAL_GL_RGBA, LOCAL_GL_UNSIGNED_INT_2_10_10_10_REV,
+ uploadData.data());
+ }
+ }
+ return strong;
+}
+
+} // namespace gl
+} // namespace mozilla