Store uniform block bindings in program binaries.

src/libANGLE/Program.cpp

@@ -818,6 +818,14 @@ Error Program::loadBinary(const Context *context,
         mState.mUniformBlocks.push_back(uniformBlock);
     }
 
+    for (GLuint bindingIndex = 0; bindingIndex < mState.mUniformBlockBindings.size();
+         ++bindingIndex)
+    {
+        stream.readInt(&mState.mUniformBlockBindings[bindingIndex]);
+        mState.mActiveUniformBlockBindings.set(bindingIndex,
+                                               mState.mUniformBlockBindings[bindingIndex] != 0);
+    }
+
     unsigned int transformFeedbackVaryingCount = stream.readInt<unsigned int>();
     ASSERT(mState.mTransformFeedbackVaryingVars.empty());
     for (unsigned int transformFeedbackVaryingIndex = 0;
@@ -848,7 +856,7 @@ Error Program::loadBinary(const Context *context,
     stream.readInt(&mSamplerUniformRange.start);
     stream.readInt(&mSamplerUniformRange.end);
 
-    ANGLE_TRY_RESULT(mProgram->load(mInfoLog, &stream), mLinked);
+    ANGLE_TRY_RESULT(mProgram->load(context->getImplementation(), mInfoLog, &stream), mLinked);
 
     return NoError();
 #endif  // #if ANGLE_PROGRAM_BINARY_LOAD == ANGLE_ENABLED
@@ -936,6 +944,11 @@ Error Program::saveBinary(const Context *context,
         }
     }
 
+    for (GLuint binding : mState.mUniformBlockBindings)
+    {
+        stream.writeInt(binding);
+    }
+
     stream.writeInt(mState.mTransformFeedbackVaryingVars.size());
     for (const sh::Varying &varying : mState.mTransformFeedbackVaryingVars)
     {
@@ -1685,6 +1698,7 @@ const UniformBlock &Program::getUniformBlockByIndex(GLuint index) const
 void Program::bindUniformBlock(GLuint uniformBlockIndex, GLuint uniformBlockBinding)
 {
     mState.mUniformBlockBindings[uniformBlockIndex] = uniformBlockBinding;
+    mState.mActiveUniformBlockBindings.set(uniformBlockIndex, uniformBlockBinding != 0);
     mProgram->setUniformBlockBinding(uniformBlockIndex, uniformBlockBinding);
 }
 

src/libANGLE/Program.h

@@ -13,6 +13,7 @@
 #include <GLES2/gl2.h>
 #include <GLSLANG/ShaderVars.h>
 
+#include <array>
 #include <map>
 #include <set>
 #include <sstream>
@@ -211,7 +212,7 @@ class ProgramState final : angle::NonCopyable
     std::vector<sh::Varying> mTransformFeedbackVaryingVars;
     GLenum mTransformFeedbackBufferMode;
 
-    GLuint mUniformBlockBindings[IMPLEMENTATION_MAX_COMBINED_SHADER_UNIFORM_BUFFERS];
+    std::array<GLuint, IMPLEMENTATION_MAX_COMBINED_SHADER_UNIFORM_BUFFERS> mUniformBlockBindings;
     UniformBlockBindingMask mActiveUniformBlockBindings;
 
     std::vector<sh::Attribute> mAttributes;

src/libANGLE/renderer/ProgramImpl.h

@@ -26,13 +26,17 @@ namespace rx
 {
 using LinkResult = gl::ErrorOrResult<bool>;
 
+class ContextImpl;
+
 class ProgramImpl : angle::NonCopyable
 {
   public:
     ProgramImpl(const gl::ProgramState &state) : mState(state) {}
     virtual ~ProgramImpl() {}
 
-    virtual LinkResult load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream) = 0;
+    virtual LinkResult load(const ContextImpl *contextImpl,
+                            gl::InfoLog &infoLog,
+                            gl::BinaryInputStream *stream)  = 0;
     virtual gl::Error save(gl::BinaryOutputStream *stream) = 0;
     virtual void setBinaryRetrievableHint(bool retrievable) = 0;
 

src/libANGLE/renderer/ProgramImpl_mock.h

@@ -23,7 +23,7 @@ class MockProgramImpl : public rx::ProgramImpl
     MockProgramImpl() : ProgramImpl(gl::ProgramState()) {}
     virtual ~MockProgramImpl() { destroy(); }
 
-    MOCK_METHOD2(load, LinkResult(gl::InfoLog &, gl::BinaryInputStream *));
+    MOCK_METHOD3(load, LinkResult(const ContextImpl *, gl::InfoLog &, gl::BinaryInputStream *));
     MOCK_METHOD1(save, gl::Error(gl::BinaryOutputStream *));
     MOCK_METHOD1(setBinaryRetrievableHint, void(bool));
 

src/libANGLE/renderer/d3d/ProgramD3D.cpp

@@ -783,8 +783,12 @@ void ProgramD3D::updateSamplerMapping()
     }
 }
 
-LinkResult ProgramD3D::load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream)
+LinkResult ProgramD3D::load(const ContextImpl *contextImpl,
+                            gl::InfoLog &infoLog,
+                            gl::BinaryInputStream *stream)
 {
+    // TODO(jmadill): Use Renderer from contextImpl.
+
     reset();
 
     DeviceIdentifier binaryDeviceIdentifier = {0};

src/libANGLE/renderer/d3d/ProgramD3D.h

@@ -151,7 +151,9 @@ class ProgramD3D : public ProgramImpl
     bool usesGeometryShader(GLenum drawMode) const;
     bool usesInstancedPointSpriteEmulation() const;
 
-    LinkResult load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream) override;
+    LinkResult load(const ContextImpl *contextImpl,
+                    gl::InfoLog &infoLog,
+                    gl::BinaryInputStream *stream) override;
     gl::Error save(gl::BinaryOutputStream *stream) override;
     void setBinaryRetrievableHint(bool retrievable) override;
 

src/libANGLE/renderer/gl/ContextGL.cpp

@@ -369,7 +369,7 @@ StateManagerGL *ContextGL::getStateManager()
     return mRenderer->getStateManager();
 }
 
-const WorkaroundsGL &ContextGL::getWorkaroundsGL()
+const WorkaroundsGL &ContextGL::getWorkaroundsGL() const
 {
     return mRenderer->getWorkarounds();
 }

src/libANGLE/renderer/gl/ContextGL.h

@@ -172,7 +172,7 @@ class ContextGL : public ContextImpl
     // Handle helpers
     const FunctionsGL *getFunctions() const;
     StateManagerGL *getStateManager();
-    const WorkaroundsGL &getWorkaroundsGL();
+    const WorkaroundsGL &getWorkaroundsGL() const;
 
   private:
     RendererGL *mRenderer;

src/libANGLE/renderer/gl/ProgramGL.cpp

@@ -8,10 +8,12 @@
 
 #include "libANGLE/renderer/gl/ProgramGL.h"
 
+#include "common/BitSetIterator.h"
 #include "common/angleutils.h"
 #include "common/debug.h"
 #include "common/string_utils.h"
 #include "common/utilities.h"
+#include "libANGLE/renderer/gl/ContextGL.h"
 #include "libANGLE/renderer/gl/FunctionsGL.h"
 #include "libANGLE/renderer/gl/ShaderGL.h"
 #include "libANGLE/renderer/gl/StateManagerGL.h"
@@ -46,7 +48,9 @@ ProgramGL::~ProgramGL()
     mProgramID = 0;
 }
 
-LinkResult ProgramGL::load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream)
+LinkResult ProgramGL::load(const ContextImpl *contextImpl,
+                           gl::InfoLog &infoLog,
+                           gl::BinaryInputStream *stream)
 {
     preLink();
 
@@ -67,6 +71,16 @@ LinkResult ProgramGL::load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream)
 
     postLink();
 
+    // Re-apply UBO bindings to work around driver bugs.
+    const WorkaroundsGL &workaroundsGL = GetAs<ContextGL>(contextImpl)->getWorkaroundsGL();
+    if (workaroundsGL.reapplyUBOBindingsAfterLoadingBinaryProgram)
+    {
+        for (GLuint bindingIndex : angle::IterateBitSet(mState.getActiveUniformBlockBindingsMask()))
+        {
+            setUniformBlockBinding(bindingIndex, mState.getUniformBlockBinding(bindingIndex));
+        }
+    }
+
     return true;
 }
 

src/libANGLE/renderer/gl/ProgramGL.h

@@ -37,7 +37,9 @@ class ProgramGL : public ProgramImpl
               bool enablePathRendering);
     ~ProgramGL() override;
 
-    LinkResult load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream) override;
+    LinkResult load(const ContextImpl *contextImpl,
+                    gl::InfoLog &infoLog,
+                    gl::BinaryInputStream *stream) override;
     gl::Error save(gl::BinaryOutputStream *stream) override;
     void setBinaryRetrievableHint(bool retrievable) override;
 

src/libANGLE/renderer/gl/WorkaroundsGL.h

@@ -14,25 +14,6 @@ namespace rx
 
 struct WorkaroundsGL
 {
-    WorkaroundsGL()
-        : avoid1BitAlphaTextureFormats(false),
-          rgba4IsNotSupportedForColorRendering(false),
-          doesSRGBClearsOnLinearFramebufferAttachments(false),
-          doWhileGLSLCausesGPUHang(false),
-          finishDoesNotCauseQueriesToBeAvailable(false),
-          alwaysCallUseProgramAfterLink(false),
-          unpackOverlappingRowsSeparatelyUnpackBuffer(false),
-          emulateAbsIntFunction(false),
-          addAndTrueToLoopCondition(false),
-          emulateIsnanFloat(false),
-          useUnusedBlocksWithStandardOrSharedLayout(false),
-          dontRemoveInvariantForFragmentInput(false),
-          removeInvariantAndCentroidForESSL3(false),
-          rewriteFloatUnaryMinusOperator(false),
-          emulateAtan2Float(false)
-    {
-    }
-
     // When writing a float to a normalized integer framebuffer, desktop OpenGL is allowed to write
     // one of the two closest normalized integer representations (although round to nearest is
     // preferred) (see section 2.3.5.2 of the GL 4.5 core specification). OpenGL ES requires that
@@ -40,18 +21,18 @@ struct WorkaroundsGL
     // section 2.1.2 of the OpenGL ES 2.0.25 spec).  This issue only shows up on Intel and AMD
     // drivers on framebuffer formats that have 1-bit alpha, work around this by using higher
     // precision formats instead.
-    bool avoid1BitAlphaTextureFormats;
+    bool avoid1BitAlphaTextureFormats = false;
 
     // On some older Intel drivers, GL_RGBA4 is not color renderable, glCheckFramebufferStatus
     // returns GL_FRAMEBUFFER_UNSUPPORTED. Work around this by using a known color-renderable
     // format.
-    bool rgba4IsNotSupportedForColorRendering;
+    bool rgba4IsNotSupportedForColorRendering = false;
 
     // When clearing a framebuffer on Intel or AMD drivers, when GL_FRAMEBUFFER_SRGB is enabled, the
     // driver clears to the linearized clear color despite the framebuffer not supporting SRGB
     // blending.  It only seems to do this when the framebuffer has only linear attachments, mixed
     // attachments appear to get the correct clear color.
-    bool doesSRGBClearsOnLinearFramebufferAttachments;
+    bool doesSRGBClearsOnLinearFramebufferAttachments = false;
 
     // On Mac some GLSL constructs involving do-while loops cause GPU hangs, such as the following:
     //  int i = 1;
@@ -60,34 +41,34 @@ struct WorkaroundsGL
     //      continue;
     //  } while (i > 0)
     // Work around this by rewriting the do-while to use another GLSL construct (block + while)
-    bool doWhileGLSLCausesGPUHang;
+    bool doWhileGLSLCausesGPUHang = false;
 
     // Calling glFinish doesn't cause all queries to report that the result is available on some
     // (NVIDIA) drivers.  It was found that enabling GL_DEBUG_OUTPUT_SYNCHRONOUS before the finish
     // causes it to fully finish.
-    bool finishDoesNotCauseQueriesToBeAvailable;
+    bool finishDoesNotCauseQueriesToBeAvailable = false;
 
     // Always call useProgram after a successful link to avoid a driver bug.
     // This workaround is meant to reproduce the use_current_program_after_successful_link
     // workaround in Chromium (http://crbug.com/110263). It has been shown that this workaround is
     // not necessary for MacOSX 10.9 and higher (http://crrev.com/39eb535b).
-    bool alwaysCallUseProgramAfterLink;
+    bool alwaysCallUseProgramAfterLink = false;
 
     // In the case of unpacking from a pixel unpack buffer, unpack overlapping rows row by row.
-    bool unpackOverlappingRowsSeparatelyUnpackBuffer;
+    bool unpackOverlappingRowsSeparatelyUnpackBuffer = false;
     // In the case of packing to a pixel pack buffer, pack overlapping rows row by row.
-    bool packOverlappingRowsSeparatelyPackBuffer;
+    bool packOverlappingRowsSeparatelyPackBuffer = false;
 
     // During initialization, assign the current vertex attributes to the spec-mandated defaults.
-    bool initializeCurrentVertexAttributes;
+    bool initializeCurrentVertexAttributes = false;
 
     // abs(i) where i is an integer returns unexpected result on Intel Mac.
     // Emulate abs(i) with i * sign(i).
-    bool emulateAbsIntFunction;
+    bool emulateAbsIntFunction = false;
 
     // On Intel Mac, calculation of loop conditions in for and while loop has bug.
     // Add "&& true" to the end of the condition expression to work around the bug.
-    bool addAndTrueToLoopCondition;
+    bool addAndTrueToLoopCondition = false;
 
     // When uploading textures from an unpack buffer, some drivers count an extra row padding when
     // checking if the pixel unpack buffer is big enough. Tracking bug: http://anglebug.com/1512
@@ -101,37 +82,43 @@ struct WorkaroundsGL
     //     +-------A--B
     // The last pixel read will be A, but the driver will think it is B, causing it to generate an
     // error when the pixel buffer is just big enough.
-    bool unpackLastRowSeparatelyForPaddingInclusion;
+    bool unpackLastRowSeparatelyForPaddingInclusion = false;
 
     // Equivalent workaround when uploading data from a pixel pack buffer.
-    bool packLastRowSeparatelyForPaddingInclusion;
+    bool packLastRowSeparatelyForPaddingInclusion = false;
 
     // On some Intel drivers, using isnan() on highp float will get wrong answer. To work around
     // this bug, we use an expression to emulate function isnan().
     // Tracking bug: http://crbug.com/650547
-    bool emulateIsnanFloat;
+    bool emulateIsnanFloat = false;
 
     // On Mac with OpenGL version 4.1, unused std140 or shared uniform blocks will be
     // treated as inactive which is not consistent with WebGL2.0 spec. Reference all members in a
     // unused std140 or shared uniform block at the beginning of main to work around it.
-    bool useUnusedBlocksWithStandardOrSharedLayout;
+    bool useUnusedBlocksWithStandardOrSharedLayout = false;
 
     // This flag will keep invariant declaration for input in fragment shader for GLSL >=4.20
     // on AMD.
-    bool dontRemoveInvariantForFragmentInput;
+    bool dontRemoveInvariantForFragmentInput = false;
 
     // This flag is used to fix spec difference between GLSL 4.1 or lower and ESSL3.
-    bool removeInvariantAndCentroidForESSL3;
+    bool removeInvariantAndCentroidForESSL3 = false;
 
     // On Intel Mac OSX 10.11 driver, using "-float" will get wrong answer. Use "0.0 - float" to
     // replace "-float".
     // Tracking bug: http://crbug.com/308366
-    bool rewriteFloatUnaryMinusOperator;
+    bool rewriteFloatUnaryMinusOperator = false;
 
     // On NVIDIA drivers, atan(y, x) may return a wrong answer.
     // Tracking bug: http://crbug.com/672380
-    bool emulateAtan2Float;
+    bool emulateAtan2Float = false;
+
+    // Some drivers seem to forget about UBO bindings when loading program binaries. Work around
+    // this by re-applying the bindings after the program binary is loaded.
+    // This only seems to affect AMD OpenGL drivers.
+    // http://anglebug.com/1660
+    bool reapplyUBOBindingsAfterLoadingBinaryProgram = false;
 };
-}
+}  // namespace rx
 
 #endif  // LIBANGLE_RENDERER_GL_WORKAROUNDSGL_H_

src/libANGLE/renderer/gl/renderergl_utils.cpp

@@ -957,10 +957,12 @@ void GenerateWorkarounds(const FunctionsGL *functions, WorkaroundsGL *workaround
     // TODO(oetuaho): Make this specific to the affected driver versions. Versions that came after
     // 364 are known to be affected, at least up to 375.
     workarounds->emulateAtan2Float = IsNvidia(vendor);
-}
 
+    workarounds->reapplyUBOBindingsAfterLoadingBinaryProgram = IsAMD(vendor);
 }
 
+}  // namespace nativegl_gl
+
 namespace nativegl
 {
 bool SupportsFenceSync(const FunctionsGL *functions)

src/libANGLE/renderer/null/ProgramNULL.cpp

@@ -22,7 +22,9 @@ ProgramNULL::~ProgramNULL()
 {
 }
 
-LinkResult ProgramNULL::load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream)
+LinkResult ProgramNULL::load(const ContextImpl *contextImpl,
+                             gl::InfoLog &infoLog,
+                             gl::BinaryInputStream *stream)
 {
     return true;
 }

src/libANGLE/renderer/null/ProgramNULL.h

@@ -21,7 +21,9 @@ class ProgramNULL : public ProgramImpl
     ProgramNULL(const gl::ProgramState &state);
     ~ProgramNULL() override;
 
-    LinkResult load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream) override;
+    LinkResult load(const ContextImpl *contextImpl,
+                    gl::InfoLog &infoLog,
+                    gl::BinaryInputStream *stream) override;
     gl::Error save(gl::BinaryOutputStream *stream) override;
     void setBinaryRetrievableHint(bool retrievable) override;
 

src/libANGLE/renderer/vulkan/ProgramVk.cpp

@@ -22,7 +22,9 @@ ProgramVk::~ProgramVk()
 {
 }
 
-LinkResult ProgramVk::load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream)
+LinkResult ProgramVk::load(const ContextImpl *contextImpl,
+                           gl::InfoLog &infoLog,
+                           gl::BinaryInputStream *stream)
 {
     UNIMPLEMENTED();
     return gl::Error(GL_INVALID_OPERATION);

src/libANGLE/renderer/vulkan/ProgramVk.h

@@ -21,7 +21,9 @@ class ProgramVk : public ProgramImpl
     ProgramVk(const gl::ProgramState &state);
     ~ProgramVk() override;
 
-    LinkResult load(gl::InfoLog &infoLog, gl::BinaryInputStream *stream) override;
+    LinkResult load(const ContextImpl *contextImpl,
+                    gl::InfoLog &infoLog,
+                    gl::BinaryInputStream *stream) override;
     gl::Error save(gl::BinaryOutputStream *stream) override;
     void setBinaryRetrievableHint(bool retrievable) override;
 

src/libANGLE/validationES.cpp

@@ -4003,6 +4003,12 @@ bool ValidateGetProgramBinaryBase(Context *context,
         return false;
     }
 
+    if (context->getCaps().programBinaryFormats.empty())
+    {
+        context->handleError(Error(GL_INVALID_OPERATION, "No program binary formats supported."));
+        return false;
+    }
+
     return true;
 }
 

src/tests/gl_tests/ProgramBinaryTest.cpp

@@ -12,6 +12,7 @@
 #include "EGLWindow.h"
 #include "OSWindow.h"
 #include "test_utils/angle_test_configs.h"
+#include "test_utils/gl_raii.h"
 
 using namespace angle;
 
@@ -222,6 +223,93 @@ ANGLE_INSTANTIATE_TEST(ProgramBinaryTest,
                        ES2_OPENGL(),
                        ES3_OPENGL());
 
+class ProgramBinaryES3Test : public ANGLETest
+{
+};
+
+// Tests that saving and loading a program perserves uniform block binding info.
+TEST_P(ProgramBinaryES3Test, UniformBlockBinding)
+{
+    // We can't run the test if no program binary formats are supported.
+    GLint binaryFormatCount = 0;
+    glGetIntegerv(GL_NUM_PROGRAM_BINARY_FORMATS, &binaryFormatCount);
+    if (binaryFormatCount == 0)
+    {
+        std::cout << "Test skipped because no program binary formats available." << std::endl;
+        return;
+    }
+
+    const std::string &vertexShader =
+        "#version 300 es\n"
+        "uniform block {\n"
+        "    float f;\n"
+        "};\n"
+        "in vec4 position;\n"
+        "out vec4 color;\n"
+        "void main() {\n"
+        "    gl_Position = position;\n"
+        "    color = vec4(f, f, f, 1);\n"
+        "}";
+    const std::string &fragmentShader =
+        "#version 300 es\n"
+        "precision mediump float;\n"
+        "in vec4 color;\n"
+        "out vec4 colorOut;\n"
+        "void main() {\n"
+        "    colorOut = color;\n"
+        "}";
+
+    // Init and draw with the program.
+    ANGLE_GL_PROGRAM(program, vertexShader, fragmentShader);
+
+    float fData[4]   = {1.0f, 1.0f, 1.0f, 1.0f};
+    GLuint bindIndex = 2;
+
+    GLBuffer ubo;
+    glBindBuffer(GL_UNIFORM_BUFFER, ubo.get());
+    glBufferData(GL_UNIFORM_BUFFER, sizeof(fData), &fData, GL_STATIC_DRAW);
+    glBindBufferRange(GL_UNIFORM_BUFFER, bindIndex, ubo.get(), 0, sizeof(fData));
+
+    GLint blockIndex = glGetUniformBlockIndex(program.get(), "block");
+    ASSERT_NE(-1, blockIndex);
+
+    glUniformBlockBinding(program.get(), blockIndex, bindIndex);
+
+    glClearColor(1.0, 0.0, 0.0, 1.0);
+    glClear(GL_COLOR_BUFFER_BIT);
+    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);
+
+    drawQuad(program.get(), "position", 0.5f);
+    ASSERT_GL_NO_ERROR();
+    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::white);
+
+    // Read back the binary.
+    GLint programLength = 0;
+    glGetProgramiv(program.get(), GL_PROGRAM_BINARY_LENGTH_OES, &programLength);
+    ASSERT_GL_NO_ERROR();
+
+    GLsizei readLength  = 0;
+    GLenum binaryFormat = GL_NONE;
+    std::vector<uint8_t> binary(programLength);
+    glGetProgramBinary(program.get(), programLength, &readLength, &binaryFormat, binary.data());
+    ASSERT_GL_NO_ERROR();
+
+    EXPECT_EQ(static_cast<GLsizei>(programLength), readLength);
+
+    // Load a new program with the binary and draw.
+    ANGLE_GL_BINARY_ES3_PROGRAM(binaryProgram, binary, binaryFormat);
+
+    glClearColor(1.0, 0.0, 0.0, 1.0);
+    glClear(GL_COLOR_BUFFER_BIT);
+    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::red);
+
+    drawQuad(binaryProgram.get(), "position", 0.5f);
+    ASSERT_GL_NO_ERROR();
+    EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::white);
+}
+
+ANGLE_INSTANTIATE_TEST(ProgramBinaryES3Test, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());
+
 class ProgramBinaryTransformFeedbackTest : public ANGLETest
 {
   protected:

src/tests/test_utils/gl_raii.h

@@ -48,47 +48,65 @@ using GLFramebuffer  = GLWrapper<glGenFramebuffers, glDeleteFramebuffers>;
 using GLRenderbuffer = GLWrapper<glGenRenderbuffers, glDeleteRenderbuffers>;
 using GLSampler      = GLWrapper<glGenSamplers, glDeleteSamplers>;
 
+// Don't use GLProgram directly, use ANGLE_GL_PROGRAM.
+namespace priv
+{
 class GLProgram
 {
   public:
-    GLProgram(const std::string &vertexShader, const std::string &fragmentShader)
-        : mHandle(0), mVertexShader(vertexShader), mFragmentShader(fragmentShader)
+    GLProgram() : mHandle(0) {}
+
+    ~GLProgram() { glDeleteProgram(mHandle); }
+
+    void makeCompute(const std::string &computeShader)
     {
+        mHandle = CompileComputeProgram(computeShader);
     }
 
-    GLProgram(const std::string &computeShader) : mHandle(0), mComputeShader(computeShader) {}
+    void makeRaster(const std::string &vertexShader, const std::string &fragmentShader)
+    {
+        mHandle = CompileProgram(vertexShader, fragmentShader);
+    }
 
-    ~GLProgram() { glDeleteProgram(mHandle); }
+    void makeBinaryOES(const std::vector<uint8_t> &binary, GLenum binaryFormat)
+    {
+        mHandle = LoadBinaryProgramOES(binary, binaryFormat);
+    }
+
+    void makeBinaryES3(const std::vector<uint8_t> &binary, GLenum binaryFormat)
+    {
+        mHandle = LoadBinaryProgramES3(binary, binaryFormat);
+    }
 
     GLuint get()
     {
-        if (mHandle == 0)
-        {
-            if (!mComputeShader.empty())
-            {
-                mHandle = CompileComputeProgram(mComputeShader);
-            }
-            else
-            {
-                mHandle = CompileProgram(mVertexShader, mFragmentShader);
-            }
-        }
+        ASSERT(mHandle != 0);
         return mHandle;
     }
 
   private:
     GLuint mHandle;
-    const std::string mVertexShader;
-    const std::string mFragmentShader;
-    const std::string mComputeShader;
 };
+}  // namespace priv
 
 #define ANGLE_GL_PROGRAM(name, vertex, fragment) \
-    GLProgram name(vertex, fragment);            \
+    priv::GLProgram name;                        \
+    name.makeRaster(vertex, fragment);           \
     ASSERT_NE(0u, name.get());
 
 #define ANGLE_GL_COMPUTE_PROGRAM(name, compute) \
-    GLProgram name(compute);                    \
+    priv::GLProgram name;                       \
+    name.makeCompute(compute);                  \
+    ASSERT_NE(0u, name.get());
+
+#define ANGLE_GL_BINARY_OES_PROGRAM(name, binary, binaryFormat) \
+    priv::GLProgram name;                                       \
+    name.makeBinaryOES(binary, binaryFormat);                   \
+    ASSERT_NE(0u, name.get());
+
+#define ANGLE_GL_BINARY_ES3_PROGRAM(name, binary, binaryFormat) \
+    priv::GLProgram name;                                       \
+    name.makeBinaryES3(binary, binaryFormat);                   \
     ASSERT_NE(0u, name.get());
 
 }  // namespace angle

util/shader_utils.cpp

@@ -79,6 +79,9 @@ GLuint CompileShaderFromFile(GLenum type, const std::string &sourcePath)
 
 GLuint CheckLinkStatusAndReturnProgram(GLuint program, bool outputErrorMessages)
 {
+    if (glGetError() != GL_NO_ERROR)
+        return 0;
+
     GLint linkStatus;
     glGetProgramiv(program, GL_LINK_STATUS, &linkStatus);
     if (linkStatus == 0)
@@ -189,3 +192,17 @@ GLuint CompileComputeProgram(const std::string &csSource, bool outputErrorMessag
 
     return CheckLinkStatusAndReturnProgram(program, outputErrorMessages);
 }
+
+GLuint LoadBinaryProgramOES(const std::vector<uint8_t> &binary, GLenum binaryFormat)
+{
+    GLuint program = glCreateProgram();
+    glProgramBinaryOES(program, binaryFormat, binary.data(), static_cast<GLint>(binary.size()));
+    return CheckLinkStatusAndReturnProgram(program, true);
+}
+
+GLuint LoadBinaryProgramES3(const std::vector<uint8_t> &binary, GLenum binaryFormat)
+{
+    GLuint program = glCreateProgram();
+    glProgramBinary(program, binaryFormat, binary.data(), static_cast<GLint>(binary.size()));
+    return CheckLinkStatusAndReturnProgram(program, true);
+}

util/shader_utils.h

@@ -33,4 +33,7 @@ ANGLE_EXPORT GLuint CompileProgramFromFiles(const std::string &vsPath, const std
 ANGLE_EXPORT GLuint CompileComputeProgram(const std::string &csSource,
                                           bool outputErrorMessages = true);
 
+ANGLE_EXPORT GLuint LoadBinaryProgramOES(const std::vector<uint8_t> &binary, GLenum binaryFormat);
+ANGLE_EXPORT GLuint LoadBinaryProgramES3(const std::vector<uint8_t> &binary, GLenum binaryFormat);
+
 #endif // SAMPLE_UTIL_SHADER_UTILS_H