1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "gpu/command_buffer/client/gpu_memory_buffer_tracker.h" 6 7 #include "base/memory/scoped_ptr.h" 8 #include "gpu/command_buffer/client/gles2_implementation.h" 9 #include "gpu/command_buffer/client/image_factory.h" 10 #include "ui/gfx/gpu_memory_buffer.h" 11 12 namespace gpu { 13 namespace gles2 { 14 15 GpuMemoryBufferTracker::GpuMemoryBufferTracker(ImageFactory* factory) 16 : buffers_(), 17 factory_(factory) { 18 } 19 20 GpuMemoryBufferTracker::~GpuMemoryBufferTracker() { 21 while (!buffers_.empty()) { 22 RemoveBuffer(buffers_.begin()->first); 23 } 24 } 25 26 GLuint GpuMemoryBufferTracker::CreateBuffer( 27 GLsizei width, GLsizei height, GLenum internalformat) { 28 GLuint image_id = 0; 29 DCHECK(factory_); 30 scoped_ptr<gfx::GpuMemoryBuffer> buffer = 31 factory_->CreateGpuMemoryBuffer(width, height, internalformat, &image_id); 32 33 if (buffer.get() == NULL) 34 return 0; 35 36 std::pair<BufferMap::iterator, bool> result = 37 buffers_.insert(std::make_pair(image_id, buffer.release())); 38 GPU_DCHECK(result.second); 39 40 return image_id; 41 } 42 43 gfx::GpuMemoryBuffer* GpuMemoryBufferTracker::GetBuffer(GLuint image_id) { 44 BufferMap::iterator it = buffers_.find(image_id); 45 return (it != buffers_.end()) ? it->second : NULL; 46 } 47 48 void GpuMemoryBufferTracker::RemoveBuffer(GLuint image_id) { 49 BufferMap::iterator buffer_it = buffers_.find(image_id); 50 if (buffer_it != buffers_.end()) { 51 gfx::GpuMemoryBuffer* buffer = buffer_it->second; 52 buffers_.erase(buffer_it); 53 delete buffer; 54 } 55 DCHECK(factory_); 56 factory_->DeleteGpuMemoryBuffer(image_id); 57 } 58 59 } // namespace gles2 60 } // namespace gpu 61
