Use angle::Result and pass a context pointer to TransformFeedbackImpl

src/libANGLE/Context.cpp

@@ -2785,7 +2785,7 @@ void Context::detachBuffer(Buffer *buffer)
     // Attachments to unbound container objects, such as
     // deletion of a buffer attached to a vertex array object which is not bound to the context,
     // are not affected and continue to act as references on the deleted object
-    mGLState.detachBuffer(this, buffer);
+    ANGLE_CONTEXT_TRY(mGLState.detachBuffer(this, buffer));
 }
 
 void Context::detachFramebuffer(GLuint framebuffer)
@@ -3165,7 +3165,7 @@ void Context::beginTransformFeedback(PrimitiveMode primitiveMode)
     ASSERT(transformFeedback != nullptr);
     ASSERT(!transformFeedback->isPaused());
 
-    transformFeedback->begin(this, primitiveMode, mGLState.getProgram());
+    ANGLE_CONTEXT_TRY(transformFeedback->begin(this, primitiveMode, mGLState.getProgram()));
     mStateCache.onActiveTransformFeedbackChange(this);
 }
 
@@ -5186,7 +5186,7 @@ void Context::bindBufferRange(BufferBinding target,
                               GLsizeiptr size)
 {
     Buffer *object = mState.mBuffers->checkBufferAllocation(mImplementation.get(), buffer);
-    mGLState.setIndexedBufferBinding(this, target, index, object, offset, size);
+    ANGLE_CONTEXT_TRY(mGLState.setIndexedBufferBinding(this, target, index, object, offset, size));
     if (target == BufferBinding::Uniform)
     {
         mUniformBufferObserverBindings[index].bind(object);
@@ -6438,7 +6438,7 @@ bool Context::isVertexArray(GLuint array)
 void Context::endTransformFeedback()
 {
     TransformFeedback *transformFeedback = mGLState.getCurrentTransformFeedback();
-    transformFeedback->end(this);
+    ANGLE_CONTEXT_TRY(transformFeedback->end(this));
     mStateCache.onActiveTransformFeedbackChange(this);
 }
 
@@ -6515,14 +6515,14 @@ bool Context::isTransformFeedback(GLuint id)
 void Context::pauseTransformFeedback()
 {
     TransformFeedback *transformFeedback = mGLState.getCurrentTransformFeedback();
-    transformFeedback->pause();
+    ANGLE_CONTEXT_TRY(transformFeedback->pause(this));
     mStateCache.onActiveTransformFeedbackChange(this);
 }
 
 void Context::resumeTransformFeedback()
 {
     TransformFeedback *transformFeedback = mGLState.getCurrentTransformFeedback();
-    transformFeedback->resume();
+    ANGLE_CONTEXT_TRY(transformFeedback->resume(this));
     mStateCache.onActiveTransformFeedbackChange(this);
 }
 

src/libANGLE/State.cpp

@@ -1429,19 +1429,19 @@ Query *State::getActiveQuery(QueryType type) const
     return mActiveQueries[type].get();
 }
 
-void State::setIndexedBufferBinding(const Context *context,
-                                    BufferBinding target,
-                                    GLuint index,
-                                    Buffer *buffer,
-                                    GLintptr offset,
-                                    GLsizeiptr size)
+angle::Result State::setIndexedBufferBinding(const Context *context,
+                                             BufferBinding target,
+                                             GLuint index,
+                                             Buffer *buffer,
+                                             GLintptr offset,
+                                             GLsizeiptr size)
 {
     setBufferBinding(context, target, buffer);
 
     switch (target)
     {
         case BufferBinding::TransformFeedback:
-            mTransformFeedback->bindIndexedBuffer(context, index, buffer, offset, size);
+            ANGLE_TRY(mTransformFeedback->bindIndexedBuffer(context, index, buffer, offset, size));
             setBufferBinding(context, target, buffer);
             break;
         case BufferBinding::Uniform:
@@ -1460,6 +1460,8 @@ void State::setIndexedBufferBinding(const Context *context,
             UNREACHABLE();
             break;
     }
+
+    return angle::Result::Continue;
 }
 
 const OffsetBindingPointer<Buffer> &State::getIndexedUniformBuffer(size_t index) const
@@ -1491,11 +1493,11 @@ Buffer *State::getTargetBuffer(BufferBinding target) const
     }
 }
 
-void State::detachBuffer(const Context *context, const Buffer *buffer)
+angle::Result State::detachBuffer(const Context *context, const Buffer *buffer)
 {
     if (!buffer->isBound())
     {
-        return;
+        return angle::Result::Continue;
     }
     GLuint bufferName = buffer->id();
     for (auto target : angle::AllEnums<BufferBinding>())
@@ -1509,7 +1511,7 @@ void State::detachBuffer(const Context *context, const Buffer *buffer)
     TransformFeedback *curTransformFeedback = getCurrentTransformFeedback();
     if (curTransformFeedback)
     {
-        curTransformFeedback->detachBuffer(context, bufferName);
+        ANGLE_TRY(curTransformFeedback->detachBuffer(context, bufferName));
     }
 
     getVertexArray()->detachBuffer(context, bufferName);
@@ -1537,6 +1539,8 @@ void State::detachBuffer(const Context *context, const Buffer *buffer)
             UpdateIndexedBufferBinding(context, &buf, nullptr, BufferBinding::ShaderStorage, 0, 0);
         }
     }
+
+    return angle::Result::Continue;
 }
 
 void State::setEnableVertexAttribArray(unsigned int attribNum, bool enabled)

src/libANGLE/State.h

@@ -283,19 +283,19 @@ class State : angle::NonCopyable
     }
 
     Buffer *getTargetBuffer(BufferBinding target) const;
-    void setIndexedBufferBinding(const Context *context,
-                                 BufferBinding target,
-                                 GLuint index,
-                                 Buffer *buffer,
-                                 GLintptr offset,
-                                 GLsizeiptr size);
+    angle::Result setIndexedBufferBinding(const Context *context,
+                                          BufferBinding target,
+                                          GLuint index,
+                                          Buffer *buffer,
+                                          GLintptr offset,
+                                          GLsizeiptr size);
 
     const OffsetBindingPointer<Buffer> &getIndexedUniformBuffer(size_t index) const;
     const OffsetBindingPointer<Buffer> &getIndexedAtomicCounterBuffer(size_t index) const;
     const OffsetBindingPointer<Buffer> &getIndexedShaderStorageBuffer(size_t index) const;
 
     // Detach a buffer from all bindings
-    void detachBuffer(const Context *context, const Buffer *buffer);
+    angle::Result detachBuffer(const Context *context, const Buffer *buffer);
 
     // Vertex attrib manipulation
     void setEnableVertexAttribArray(unsigned int attribNum, bool enabled);

src/libANGLE/TransformFeedback.cpp

@@ -108,13 +108,15 @@ const std::string &TransformFeedback::getLabel() const
     return mState.mLabel;
 }
 
-void TransformFeedback::begin(const Context *context, PrimitiveMode primitiveMode, Program *program)
+angle::Result TransformFeedback::begin(const Context *context,
+                                       PrimitiveMode primitiveMode,
+                                       Program *program)
 {
+    ANGLE_TRY(mImplementation->begin(context, primitiveMode));
     mState.mActive        = true;
     mState.mPrimitiveMode = primitiveMode;
     mState.mPaused        = false;
     mState.mVerticesDrawn = 0;
-    mImplementation->begin(primitiveMode);
     bindProgram(context, program);
 
     if (program)
@@ -135,33 +137,37 @@ void TransformFeedback::begin(const Context *context, PrimitiveMode primitiveMod
     {
         mState.mVertexCapacity = 0;
     }
+    return angle::Result::Continue;
 }
 
-void TransformFeedback::end(const Context *context)
+angle::Result TransformFeedback::end(const Context *context)
 {
+    ANGLE_TRY(mImplementation->end(context));
     mState.mActive         = false;
     mState.mPrimitiveMode  = PrimitiveMode::InvalidEnum;
     mState.mPaused         = false;
     mState.mVerticesDrawn  = 0;
     mState.mVertexCapacity = 0;
-    mImplementation->end();
     if (mState.mProgram)
     {
         mState.mProgram->release(context);
         mState.mProgram = nullptr;
     }
+    return angle::Result::Continue;
 }
 
-void TransformFeedback::pause()
+angle::Result TransformFeedback::pause(const Context *context)
 {
+    ANGLE_TRY(mImplementation->pause(context));
     mState.mPaused = true;
-    mImplementation->pause();
+    return angle::Result::Continue;
 }
 
-void TransformFeedback::resume()
+angle::Result TransformFeedback::resume(const Context *context)
 {
+    ANGLE_TRY(mImplementation->resume(context));
     mState.mPaused = false;
-    mImplementation->resume();
+    return angle::Result::Continue;
 }
 
 bool TransformFeedback::isPaused() const
@@ -219,7 +225,7 @@ bool TransformFeedback::hasBoundProgram(GLuint program) const
     return mState.mProgram != nullptr && mState.mProgram->id() == program;
 }
 
-void TransformFeedback::detachBuffer(const Context *context, GLuint bufferName)
+angle::Result TransformFeedback::detachBuffer(const Context *context, GLuint bufferName)
 {
     bool isBound = context->isCurrentTransformFeedback(this);
     for (size_t index = 0; index < mState.mIndexedBuffers.size(); index++)
@@ -231,16 +237,19 @@ void TransformFeedback::detachBuffer(const Context *context, GLuint bufferName)
                 mState.mIndexedBuffers[index]->onTFBindingChanged(context, false, true);
             }
             mState.mIndexedBuffers[index].set(context, nullptr, 0, 0);
-            mImplementation->bindIndexedBuffer(index, mState.mIndexedBuffers[index]);
+            ANGLE_TRY(
+                mImplementation->bindIndexedBuffer(context, index, mState.mIndexedBuffers[index]));
         }
     }
+
+    return angle::Result::Continue;
 }
 
-void TransformFeedback::bindIndexedBuffer(const Context *context,
-                                          size_t index,
-                                          Buffer *buffer,
-                                          size_t offset,
-                                          size_t size)
+angle::Result TransformFeedback::bindIndexedBuffer(const Context *context,
+                                                   size_t index,
+                                                   Buffer *buffer,
+                                                   size_t offset,
+                                                   size_t size)
 {
     ASSERT(index < mState.mIndexedBuffers.size());
     bool isBound = context && context->isCurrentTransformFeedback(this);
@@ -254,7 +263,7 @@ void TransformFeedback::bindIndexedBuffer(const Context *context,
         buffer->onTFBindingChanged(context, true, true);
     }
 
-    mImplementation->bindIndexedBuffer(index, mState.mIndexedBuffers[index]);
+    return mImplementation->bindIndexedBuffer(context, index, mState.mIndexedBuffers[index]);
 }
 
 const OffsetBindingPointer<Buffer> &TransformFeedback::getIndexedBuffer(size_t index) const

src/libANGLE/TransformFeedback.h

@@ -63,10 +63,10 @@ class TransformFeedback final : public RefCountObject, public LabeledObject
     void setLabel(const Context *context, const std::string &label) override;
     const std::string &getLabel() const override;
 
-    void begin(const Context *context, PrimitiveMode primitiveMode, Program *program);
-    void end(const Context *context);
-    void pause();
-    void resume();
+    angle::Result begin(const Context *context, PrimitiveMode primitiveMode, Program *program);
+    angle::Result end(const Context *context);
+    angle::Result pause(const Context *context);
+    angle::Result resume(const Context *context);
 
     bool isActive() const { return mState.mActive; }
 
@@ -83,18 +83,18 @@ class TransformFeedback final : public RefCountObject, public LabeledObject
 
     bool hasBoundProgram(GLuint program) const;
 
-    void bindIndexedBuffer(const Context *context,
-                           size_t index,
-                           Buffer *buffer,
-                           size_t offset,
-                           size_t size);
+    angle::Result bindIndexedBuffer(const Context *context,
+                                    size_t index,
+                                    Buffer *buffer,
+                                    size_t offset,
+                                    size_t size);
     const OffsetBindingPointer<Buffer> &getIndexedBuffer(size_t index) const;
     size_t getIndexedBufferCount() const;
 
     // Returns true if any buffer bound to this object is also bound to another target.
     bool buffersBoundForOtherUse() const;
 
-    void detachBuffer(const Context *context, GLuint bufferName);
+    angle::Result detachBuffer(const Context *context, GLuint bufferName);
 
     rx::TransformFeedbackImpl *getImplementation();
     const rx::TransformFeedbackImpl *getImplementation() const;

src/libANGLE/TransformFeedback_unittest.cpp

@@ -72,12 +72,13 @@ TEST_F(TransformFeedbackTest, SideEffectsOfStartAndStop)
     testing::InSequence seq;
 
     EXPECT_FALSE(mFeedback->isActive());
-    EXPECT_CALL(*mImpl, begin(gl::PrimitiveMode::Triangles));
-    mFeedback->begin(nullptr, gl::PrimitiveMode::Triangles, nullptr);
+    EXPECT_CALL(*mImpl, begin(nullptr, gl::PrimitiveMode::Triangles));
+    EXPECT_EQ(angle::Result::Continue,
+              mFeedback->begin(nullptr, gl::PrimitiveMode::Triangles, nullptr));
     EXPECT_TRUE(mFeedback->isActive());
     EXPECT_EQ(gl::PrimitiveMode::Triangles, mFeedback->getPrimitiveMode());
-    EXPECT_CALL(*mImpl, end());
-    mFeedback->end(nullptr);
+    EXPECT_CALL(*mImpl, end(nullptr));
+    EXPECT_EQ(angle::Result::Continue, mFeedback->end(nullptr));
     EXPECT_FALSE(mFeedback->isActive());
 }
 
@@ -86,17 +87,18 @@ TEST_F(TransformFeedbackTest, SideEffectsOfPauseAndResume)
     testing::InSequence seq;
 
     EXPECT_FALSE(mFeedback->isActive());
-    EXPECT_CALL(*mImpl, begin(gl::PrimitiveMode::Triangles));
-    mFeedback->begin(nullptr, gl::PrimitiveMode::Triangles, nullptr);
+    EXPECT_CALL(*mImpl, begin(nullptr, gl::PrimitiveMode::Triangles));
+    EXPECT_EQ(angle::Result::Continue,
+              mFeedback->begin(nullptr, gl::PrimitiveMode::Triangles, nullptr));
     EXPECT_FALSE(mFeedback->isPaused());
-    EXPECT_CALL(*mImpl, pause());
-    mFeedback->pause();
+    EXPECT_CALL(*mImpl, pause(nullptr));
+    EXPECT_EQ(angle::Result::Continue, mFeedback->pause(nullptr));
     EXPECT_TRUE(mFeedback->isPaused());
-    EXPECT_CALL(*mImpl, resume());
-    mFeedback->resume();
+    EXPECT_CALL(*mImpl, resume(nullptr));
+    EXPECT_EQ(angle::Result::Continue, mFeedback->resume(nullptr));
     EXPECT_FALSE(mFeedback->isPaused());
-    EXPECT_CALL(*mImpl, end());
-    mFeedback->end(nullptr);
+    EXPECT_CALL(*mImpl, end(nullptr));
+    EXPECT_EQ(angle::Result::Continue, mFeedback->end(nullptr));
 }
 
 TEST_F(TransformFeedbackTest, BufferBinding)
@@ -116,8 +118,9 @@ TEST_F(TransformFeedbackTest, BufferBinding)
 
     EXPECT_EQ(mFeedback->getIndexedBufferCount(), mCaps.maxTransformFeedbackSeparateAttributes);
 
-    EXPECT_CALL(*mImpl, bindIndexedBuffer(_, _));
-    mFeedback->bindIndexedBuffer(nullptr, bindIndex, buffer, 0, 1);
+    EXPECT_CALL(*mImpl, bindIndexedBuffer(_, _, _));
+    EXPECT_EQ(angle::Result::Continue,
+              mFeedback->bindIndexedBuffer(nullptr, bindIndex, buffer, 0, 1));
     for (size_t i = 0; i < mFeedback->getIndexedBufferCount(); i++)
     {
         if (i == bindIndex)

src/libANGLE/renderer/TransformFeedbackImpl.h

@@ -21,14 +21,17 @@ class TransformFeedbackImpl : angle::NonCopyable
     TransformFeedbackImpl(const gl::TransformFeedbackState &state) : mState(state) {}
     virtual ~TransformFeedbackImpl() {}
 
-    virtual void begin(gl::PrimitiveMode primitiveMode) = 0;
-    virtual void end()                                  = 0;
-    virtual void pause()                                = 0;
-    virtual void resume()                               = 0;
-
-    virtual void bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding)       = 0;
-    virtual void bindIndexedBuffer(size_t index,
-                                   const gl::OffsetBindingPointer<gl::Buffer> &binding) = 0;
+    virtual angle::Result begin(const gl::Context *context, gl::PrimitiveMode primitiveMode) = 0;
+    virtual angle::Result end(const gl::Context *context)                                    = 0;
+    virtual angle::Result pause(const gl::Context *context)                                  = 0;
+    virtual angle::Result resume(const gl::Context *context)                                 = 0;
+
+    virtual angle::Result bindGenericBuffer(const gl::Context *context,
+                                            const gl::BindingPointer<gl::Buffer> &binding) = 0;
+    virtual angle::Result bindIndexedBuffer(
+        const gl::Context *context,
+        size_t index,
+        const gl::OffsetBindingPointer<gl::Buffer> &binding) = 0;
 
   protected:
     const gl::TransformFeedbackState &mState;

src/libANGLE/renderer/TransformFeedbackImpl_mock.h

@@ -24,13 +24,17 @@ class MockTransformFeedbackImpl : public TransformFeedbackImpl
     {}
     ~MockTransformFeedbackImpl() { destructor(); }
 
-    MOCK_METHOD1(begin, void(gl::PrimitiveMode));
-    MOCK_METHOD0(end, void());
-    MOCK_METHOD0(pause, void());
-    MOCK_METHOD0(resume, void());
-
-    MOCK_METHOD1(bindGenericBuffer, void(const gl::BindingPointer<gl::Buffer> &));
-    MOCK_METHOD2(bindIndexedBuffer, void(size_t, const gl::OffsetBindingPointer<gl::Buffer> &));
+    MOCK_METHOD2(begin, angle::Result(const gl::Context *, gl::PrimitiveMode));
+    MOCK_METHOD1(end, angle::Result(const gl::Context *));
+    MOCK_METHOD1(pause, angle::Result(const gl::Context *));
+    MOCK_METHOD1(resume, angle::Result(const gl::Context *));
+
+    MOCK_METHOD2(bindGenericBuffer,
+                 angle::Result(const gl::Context *, const gl::BindingPointer<gl::Buffer> &));
+    MOCK_METHOD3(bindIndexedBuffer,
+                 angle::Result(const gl::Context *,
+                               size_t,
+                               const gl::OffsetBindingPointer<gl::Buffer> &));
 
     MOCK_METHOD0(destructor, void());
 };

src/libANGLE/renderer/d3d/d3d11/TransformFeedback11.cpp

@@ -27,7 +27,8 @@ TransformFeedback11::TransformFeedback11(const gl::TransformFeedbackState &state
 
 TransformFeedback11::~TransformFeedback11() {}
 
-void TransformFeedback11::begin(gl::PrimitiveMode primitiveMode)
+angle::Result TransformFeedback11::begin(const gl::Context *context,
+                                         gl::PrimitiveMode primitiveMode)
 {
     // Reset all the cached offsets to the binding offsets
     mIsDirty = true;
@@ -44,38 +45,47 @@ void TransformFeedback11::begin(gl::PrimitiveMode primitiveMode)
         }
     }
     mRenderer->getStateManager()->invalidateTransformFeedback();
+    return angle::Result::Continue;
 }
 
-void TransformFeedback11::end()
+angle::Result TransformFeedback11::end(const gl::Context *context)
 {
     mRenderer->getStateManager()->invalidateTransformFeedback();
     if (mRenderer->getWorkarounds().flushAfterEndingTransformFeedback)
     {
         mRenderer->getDeviceContext()->Flush();
     }
+    return angle::Result::Continue;
 }
 
-void TransformFeedback11::pause()
+angle::Result TransformFeedback11::pause(const gl::Context *context)
 {
     mRenderer->getStateManager()->invalidateTransformFeedback();
+    return angle::Result::Continue;
 }
 
-void TransformFeedback11::resume()
+angle::Result TransformFeedback11::resume(const gl::Context *context)
 {
     mRenderer->getStateManager()->invalidateTransformFeedback();
+    return angle::Result::Continue;
 }
 
-void TransformFeedback11::bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding)
+angle::Result TransformFeedback11::bindGenericBuffer(const gl::Context *context,
+                                                     const gl::BindingPointer<gl::Buffer> &binding)
 {
     mRenderer->getStateManager()->invalidateTransformFeedback();
+    return angle::Result::Continue;
 }
 
-void TransformFeedback11::bindIndexedBuffer(size_t index,
-                                            const gl::OffsetBindingPointer<gl::Buffer> &binding)
+angle::Result TransformFeedback11::bindIndexedBuffer(
+    const gl::Context *context,
+    size_t index,
+    const gl::OffsetBindingPointer<gl::Buffer> &binding)
 {
     mIsDirty              = true;
     mBufferOffsets[index] = static_cast<UINT>(binding.getOffset());
     mRenderer->getStateManager()->invalidateTransformFeedback();
+    return angle::Result::Continue;
 }
 
 void TransformFeedback11::onApply()

src/libANGLE/renderer/d3d/d3d11/TransformFeedback11.h

@@ -27,14 +27,16 @@ class TransformFeedback11 : public TransformFeedbackImpl
     TransformFeedback11(const gl::TransformFeedbackState &state, Renderer11 *renderer);
     ~TransformFeedback11() override;
 
-    void begin(gl::PrimitiveMode primitiveMode) override;
-    void end() override;
-    void pause() override;
-    void resume() override;
-
-    void bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding) override;
-    void bindIndexedBuffer(size_t index,
-                           const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
+    angle::Result begin(const gl::Context *context, gl::PrimitiveMode primitiveMode) override;
+    angle::Result end(const gl::Context *context) override;
+    angle::Result pause(const gl::Context *context) override;
+    angle::Result resume(const gl::Context *context) override;
+
+    angle::Result bindGenericBuffer(const gl::Context *context,
+                                    const gl::BindingPointer<gl::Buffer> &binding) override;
+    angle::Result bindIndexedBuffer(const gl::Context *context,
+                                    size_t index,
+                                    const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
 
     void onApply();
 

src/libANGLE/renderer/gl/TransformFeedbackGL.cpp

@@ -36,35 +36,46 @@ TransformFeedbackGL::~TransformFeedbackGL()
     mTransformFeedbackID = 0;
 }
 
-void TransformFeedbackGL::begin(gl::PrimitiveMode primitiveMode)
+angle::Result TransformFeedbackGL::begin(const gl::Context *context,
+                                         gl::PrimitiveMode primitiveMode)
 {
     mStateManager->onTransformFeedbackStateChange();
+    return angle::Result::Continue;
 }
 
-void TransformFeedbackGL::end()
+angle::Result TransformFeedbackGL::end(const gl::Context *context)
 {
     mStateManager->onTransformFeedbackStateChange();
 
     // Immediately end the transform feedback so that the results are visible.
     syncActiveState(false, gl::PrimitiveMode::InvalidEnum);
+    return angle::Result::Continue;
 }
 
-void TransformFeedbackGL::pause()
+angle::Result TransformFeedbackGL::pause(const gl::Context *context)
 {
     mStateManager->onTransformFeedbackStateChange();
 
     syncPausedState(true);
+    return angle::Result::Continue;
 }
 
-void TransformFeedbackGL::resume()
+angle::Result TransformFeedbackGL::resume(const gl::Context *context)
 {
     mStateManager->onTransformFeedbackStateChange();
+    return angle::Result::Continue;
 }
 
-void TransformFeedbackGL::bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding) {}
+angle::Result TransformFeedbackGL::bindGenericBuffer(const gl::Context *context,
+                                                     const gl::BindingPointer<gl::Buffer> &binding)
+{
+    return angle::Result::Continue;
+}
 
-void TransformFeedbackGL::bindIndexedBuffer(size_t index,
-                                            const gl::OffsetBindingPointer<gl::Buffer> &binding)
+angle::Result TransformFeedbackGL::bindIndexedBuffer(
+    const gl::Context *context,
+    size_t index,
+    const gl::OffsetBindingPointer<gl::Buffer> &binding)
 {
     // Directly bind buffer (not through the StateManager methods) because the buffer bindings are
     // tracked per transform feedback object
@@ -88,6 +99,7 @@ void TransformFeedbackGL::bindIndexedBuffer(size_t index,
     {
         mFunctions->bindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, static_cast<GLuint>(index), 0);
     }
+    return angle::Result::Continue;
 }
 
 GLuint TransformFeedbackGL::getTransformFeedbackID() const

src/libANGLE/renderer/gl/TransformFeedbackGL.h

@@ -25,14 +25,16 @@ class TransformFeedbackGL : public TransformFeedbackImpl
                         StateManagerGL *stateManager);
     ~TransformFeedbackGL() override;
 
-    void begin(gl::PrimitiveMode primitiveMode) override;
-    void end() override;
-    void pause() override;
-    void resume() override;
-
-    void bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding) override;
-    void bindIndexedBuffer(size_t index,
-                           const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
+    angle::Result begin(const gl::Context *context, gl::PrimitiveMode primitiveMode) override;
+    angle::Result end(const gl::Context *context) override;
+    angle::Result pause(const gl::Context *context) override;
+    angle::Result resume(const gl::Context *context) override;
+
+    angle::Result bindGenericBuffer(const gl::Context *context,
+                                    const gl::BindingPointer<gl::Buffer> &binding) override;
+    angle::Result bindIndexedBuffer(const gl::Context *context,
+                                    size_t index,
+                                    const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
 
     GLuint getTransformFeedbackID() const;
 

src/libANGLE/renderer/null/TransformFeedbackNULL.cpp

@@ -20,18 +20,40 @@ TransformFeedbackNULL::TransformFeedbackNULL(const gl::TransformFeedbackState &s
 
 TransformFeedbackNULL::~TransformFeedbackNULL() {}
 
-void TransformFeedbackNULL::begin(gl::PrimitiveMode primitiveMode) {}
+angle::Result TransformFeedbackNULL::begin(const gl::Context *context,
+                                           gl::PrimitiveMode primitiveMode)
+{
+    return angle::Result::Continue;
+}
 
-void TransformFeedbackNULL::end() {}
+angle::Result TransformFeedbackNULL::end(const gl::Context *context)
+{
+    return angle::Result::Continue;
+}
 
-void TransformFeedbackNULL::pause() {}
+angle::Result TransformFeedbackNULL::pause(const gl::Context *context)
+{
+    return angle::Result::Continue;
+}
 
-void TransformFeedbackNULL::resume() {}
+angle::Result TransformFeedbackNULL::resume(const gl::Context *context)
+{
+    return angle::Result::Continue;
+}
 
-void TransformFeedbackNULL::bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding) {}
+angle::Result TransformFeedbackNULL::bindGenericBuffer(
+    const gl::Context *context,
+    const gl::BindingPointer<gl::Buffer> &binding)
+{
+    return angle::Result::Continue;
+}
 
-void TransformFeedbackNULL::bindIndexedBuffer(size_t index,
-                                              const gl::OffsetBindingPointer<gl::Buffer> &binding)
-{}
+angle::Result TransformFeedbackNULL::bindIndexedBuffer(
+    const gl::Context *context,
+    size_t index,
+    const gl::OffsetBindingPointer<gl::Buffer> &binding)
+{
+    return angle::Result::Continue;
+}
 
 }  // namespace rx

src/libANGLE/renderer/null/TransformFeedbackNULL.h

@@ -21,14 +21,16 @@ class TransformFeedbackNULL : public TransformFeedbackImpl
     TransformFeedbackNULL(const gl::TransformFeedbackState &state);
     ~TransformFeedbackNULL() override;
 
-    void begin(gl::PrimitiveMode primitiveMode) override;
-    void end() override;
-    void pause() override;
-    void resume() override;
-
-    void bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding) override;
-    void bindIndexedBuffer(size_t index,
-                           const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
+    angle::Result begin(const gl::Context *context, gl::PrimitiveMode primitiveMode) override;
+    angle::Result end(const gl::Context *context) override;
+    angle::Result pause(const gl::Context *context) override;
+    angle::Result resume(const gl::Context *context) override;
+
+    angle::Result bindGenericBuffer(const gl::Context *context,
+                                    const gl::BindingPointer<gl::Buffer> &binding) override;
+    angle::Result bindIndexedBuffer(const gl::Context *context,
+                                    size_t index,
+                                    const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
 };
 
 }  // namespace rx

src/libANGLE/renderer/vulkan/TransformFeedbackVk.cpp

@@ -20,35 +20,45 @@ TransformFeedbackVk::TransformFeedbackVk(const gl::TransformFeedbackState &state
 
 TransformFeedbackVk::~TransformFeedbackVk() {}
 
-void TransformFeedbackVk::begin(gl::PrimitiveMode primitiveMode)
+angle::Result TransformFeedbackVk::begin(const gl::Context *context,
+                                         gl::PrimitiveMode primitiveMode)
 {
     UNIMPLEMENTED();
+    return angle::Result::Stop;
 }
 
-void TransformFeedbackVk::end()
+angle::Result TransformFeedbackVk::end(const gl::Context *context)
 {
     UNIMPLEMENTED();
+    return angle::Result::Stop;
 }
 
-void TransformFeedbackVk::pause()
+angle::Result TransformFeedbackVk::pause(const gl::Context *context)
 {
     UNIMPLEMENTED();
+    return angle::Result::Stop;
 }
 
-void TransformFeedbackVk::resume()
+angle::Result TransformFeedbackVk::resume(const gl::Context *context)
 {
     UNIMPLEMENTED();
+    return angle::Result::Stop;
 }
 
-void TransformFeedbackVk::bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding)
+angle::Result TransformFeedbackVk::bindGenericBuffer(const gl::Context *context,
+                                                     const gl::BindingPointer<gl::Buffer> &binding)
 {
     UNIMPLEMENTED();
+    return angle::Result::Stop;
 }
 
-void TransformFeedbackVk::bindIndexedBuffer(size_t index,
-                                            const gl::OffsetBindingPointer<gl::Buffer> &binding)
+angle::Result TransformFeedbackVk::bindIndexedBuffer(
+    const gl::Context *context,
+    size_t index,
+    const gl::OffsetBindingPointer<gl::Buffer> &binding)
 {
     UNIMPLEMENTED();
+    return angle::Result::Stop;
 }
 
 }  // namespace rx

src/libANGLE/renderer/vulkan/TransformFeedbackVk.h

@@ -21,14 +21,16 @@ class TransformFeedbackVk : public TransformFeedbackImpl
     TransformFeedbackVk(const gl::TransformFeedbackState &state);
     ~TransformFeedbackVk() override;
 
-    void begin(gl::PrimitiveMode primitiveMode) override;
-    void end() override;
-    void pause() override;
-    void resume() override;
-
-    void bindGenericBuffer(const gl::BindingPointer<gl::Buffer> &binding) override;
-    void bindIndexedBuffer(size_t index,
-                           const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
+    angle::Result begin(const gl::Context *context, gl::PrimitiveMode primitiveMode) override;
+    angle::Result end(const gl::Context *context) override;
+    angle::Result pause(const gl::Context *context) override;
+    angle::Result resume(const gl::Context *context) override;
+
+    angle::Result bindGenericBuffer(const gl::Context *context,
+                                    const gl::BindingPointer<gl::Buffer> &binding) override;
+    angle::Result bindIndexedBuffer(const gl::Context *context,
+                                    size_t index,
+                                    const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
 };
 
 }  // namespace rx