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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/angle/src/libANGLE/TransformFeedback.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/angle/src/libANGLE/TransformFeedback.cpp')
-rwxr-xr-xgfx/angle/src/libANGLE/TransformFeedback.cpp206
1 files changed, 206 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/TransformFeedback.cpp b/gfx/angle/src/libANGLE/TransformFeedback.cpp
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index 000000000..293c91b31
--- /dev/null
+++ b/gfx/angle/src/libANGLE/TransformFeedback.cpp
@@ -0,0 +1,206 @@
+//
+// Copyright (c) 2014 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#include "libANGLE/TransformFeedback.h"
+
+#include "libANGLE/Buffer.h"
+#include "libANGLE/Caps.h"
+#include "libANGLE/ContextState.h"
+#include "libANGLE/Program.h"
+#include "libANGLE/renderer/GLImplFactory.h"
+#include "libANGLE/renderer/TransformFeedbackImpl.h"
+
+namespace gl
+{
+
+TransformFeedbackState::TransformFeedbackState(size_t maxIndexedBuffers)
+ : mLabel(),
+ mActive(false),
+ mPrimitiveMode(GL_NONE),
+ mPaused(false),
+ mProgram(nullptr),
+ mGenericBuffer(),
+ mIndexedBuffers(maxIndexedBuffers)
+{
+}
+
+const BindingPointer<Buffer> &TransformFeedbackState::getGenericBuffer() const
+{
+ return mGenericBuffer;
+}
+
+const OffsetBindingPointer<Buffer> &TransformFeedbackState::getIndexedBuffer(size_t idx) const
+{
+ return mIndexedBuffers[idx];
+}
+
+const std::vector<OffsetBindingPointer<Buffer>> &TransformFeedbackState::getIndexedBuffers() const
+{
+ return mIndexedBuffers;
+}
+
+TransformFeedback::TransformFeedback(rx::GLImplFactory *implFactory, GLuint id, const Caps &caps)
+ : RefCountObject(id),
+ mState(caps.maxTransformFeedbackSeparateAttributes),
+ mImplementation(implFactory->createTransformFeedback(mState))
+{
+ ASSERT(mImplementation != nullptr);
+}
+
+TransformFeedback::~TransformFeedback()
+{
+ if (mState.mProgram)
+ {
+ mState.mProgram->release();
+ mState.mProgram = nullptr;
+ }
+ mState.mGenericBuffer.set(nullptr);
+ for (size_t i = 0; i < mState.mIndexedBuffers.size(); i++)
+ {
+ mState.mIndexedBuffers[i].set(nullptr);
+ }
+
+ SafeDelete(mImplementation);
+}
+
+void TransformFeedback::setLabel(const std::string &label)
+{
+ mState.mLabel = label;
+}
+
+const std::string &TransformFeedback::getLabel() const
+{
+ return mState.mLabel;
+}
+
+void TransformFeedback::begin(GLenum primitiveMode, Program *program)
+{
+ mState.mActive = true;
+ mState.mPrimitiveMode = primitiveMode;
+ mState.mPaused = false;
+ mImplementation->begin(primitiveMode);
+ bindProgram(program);
+}
+
+void TransformFeedback::end()
+{
+ mState.mActive = false;
+ mState.mPrimitiveMode = GL_NONE;
+ mState.mPaused = false;
+ mImplementation->end();
+ if (mState.mProgram)
+ {
+ mState.mProgram->release();
+ mState.mProgram = nullptr;
+ }
+}
+
+void TransformFeedback::pause()
+{
+ mState.mPaused = true;
+ mImplementation->pause();
+}
+
+void TransformFeedback::resume()
+{
+ mState.mPaused = false;
+ mImplementation->resume();
+}
+
+bool TransformFeedback::isActive() const
+{
+ return mState.mActive;
+}
+
+bool TransformFeedback::isPaused() const
+{
+ return mState.mPaused;
+}
+
+GLenum TransformFeedback::getPrimitiveMode() const
+{
+ return mState.mPrimitiveMode;
+}
+
+void TransformFeedback::bindProgram(Program *program)
+{
+ if (mState.mProgram != program)
+ {
+ if (mState.mProgram != nullptr)
+ {
+ mState.mProgram->release();
+ }
+ mState.mProgram = program;
+ if (mState.mProgram != nullptr)
+ {
+ mState.mProgram->addRef();
+ }
+ }
+}
+
+bool TransformFeedback::hasBoundProgram(GLuint program) const
+{
+ return mState.mProgram != nullptr && mState.mProgram->id() == program;
+}
+
+void TransformFeedback::bindGenericBuffer(Buffer *buffer)
+{
+ mState.mGenericBuffer.set(buffer);
+ mImplementation->bindGenericBuffer(mState.mGenericBuffer);
+}
+
+void TransformFeedback::detachBuffer(GLuint bufferName)
+{
+ for (size_t index = 0; index < mState.mIndexedBuffers.size(); index++)
+ {
+ if (mState.mIndexedBuffers[index].id() == bufferName)
+ {
+ mState.mIndexedBuffers[index].set(nullptr);
+ mImplementation->bindIndexedBuffer(index, mState.mIndexedBuffers[index]);
+ }
+ }
+
+ if (mState.mGenericBuffer.id() == bufferName)
+ {
+ mState.mGenericBuffer.set(nullptr);
+ mImplementation->bindGenericBuffer(mState.mGenericBuffer);
+ }
+}
+
+const BindingPointer<Buffer> &TransformFeedback::getGenericBuffer() const
+{
+ return mState.mGenericBuffer;
+}
+
+void TransformFeedback::bindIndexedBuffer(size_t index, Buffer *buffer, size_t offset, size_t size)
+{
+ ASSERT(index < mState.mIndexedBuffers.size());
+ mState.mIndexedBuffers[index].set(buffer, offset, size);
+ mImplementation->bindIndexedBuffer(index, mState.mIndexedBuffers[index]);
+}
+
+const OffsetBindingPointer<Buffer> &TransformFeedback::getIndexedBuffer(size_t index) const
+{
+ ASSERT(index < mState.mIndexedBuffers.size());
+ return mState.mIndexedBuffers[index];
+}
+
+size_t TransformFeedback::getIndexedBufferCount() const
+{
+ return mState.mIndexedBuffers.size();
+}
+
+rx::TransformFeedbackImpl *TransformFeedback::getImplementation()
+{
+ return mImplementation;
+}
+
+const rx::TransformFeedbackImpl *TransformFeedback::getImplementation() const
+{
+ return mImplementation;
+}
+
+}