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| 1 // Copyright 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 "android_webview/browser/gpu_memory_buffer_impl.h" | |
| 6 | |
| 7 #include "android_webview/public/browser/draw_gl.h" | |
| 8 #include "base/bind.h" | |
| 9 #include "base/logging.h" | |
| 10 #include "gpu/command_buffer/client/gl_in_process_context.h" | |
| 11 #include "gpu/command_buffer/client/gpu_memory_buffer.h" | |
| 12 #include "ui/gfx/size.h" | |
| 13 | |
| 14 namespace android_webview { | |
| 15 | |
| 16 // Provides hardware rendering functions from the Android glue layer. | |
| 17 AwDrawGLFunctionTable* g_gl_draw_functions = NULL; | |
| 18 | |
| 19 GpuMemoryBufferImpl::GpuMemoryBufferImpl(gfx::Size size) | |
| 20 : buffer_id_(g_gl_draw_functions->create_graphic_buffer( | |
| 21 size.width(), size.height())), | |
| 22 size_(size), | |
| 23 mapped_(false) { | |
| 24 } | |
| 25 | |
| 26 GpuMemoryBufferImpl::~GpuMemoryBufferImpl() { | |
| 27 g_gl_draw_functions->release_graphic_buffer(buffer_id_); | |
| 28 } | |
| 29 | |
| 30 void GpuMemoryBufferImpl::Map(gpu::GpuMemoryBuffer::AccessMode mode, | |
| 31 void** vaddr) { | |
| 32 DCHECK(buffer_id_ != 0); | |
| 33 AwMapMode map_mode = MAP_READ_ONLY; | |
| 34 switch (mode) { | |
| 35 case GpuMemoryBuffer::READ_ONLY: | |
| 36 map_mode = MAP_READ_ONLY; | |
| 37 break; | |
| 38 case GpuMemoryBuffer::WRITE_ONLY: | |
| 39 map_mode = MAP_WRITE_ONLY; | |
| 40 break; | |
| 41 case GpuMemoryBuffer::READ_WRITE: | |
| 42 map_mode = MAP_READ_WRITE; | |
| 43 break; | |
| 44 default: | |
| 45 LOG(DFATAL) << "Unknown map mode: " << mode; | |
| 46 } | |
| 47 int err = g_gl_draw_functions->map(buffer_id_, map_mode, vaddr); | |
| 48 DCHECK(err == 0); | |
| 49 mapped_ = true; | |
| 50 } | |
| 51 | |
| 52 void GpuMemoryBufferImpl::Unmap() { | |
| 53 DCHECK(buffer_id_ != 0); | |
| 54 int err = g_gl_draw_functions->unmap(buffer_id_); | |
| 55 DCHECK(err == 0); | |
| 56 mapped_ = false; | |
| 57 } | |
| 58 | |
| 59 void* GpuMemoryBufferImpl::GetNativeBuffer() { | |
| 60 DCHECK(buffer_id_ != 0); | |
| 61 return g_gl_draw_functions->get_native_buffer(buffer_id_); | |
| 62 } | |
| 63 | |
| 64 uint32 GpuMemoryBufferImpl::GetStride() { | |
| 65 DCHECK(buffer_id_ != 0); | |
| 66 return g_gl_draw_functions->get_stride(buffer_id_); | |
| 67 } | |
| 68 | |
| 69 bool GpuMemoryBufferImpl::IsMapped() { | |
| 70 return mapped_; | |
| 71 } | |
| 72 | |
| 73 bool GpuMemoryBufferImpl::InitCheck() { | |
| 74 return buffer_id_ != 0; | |
| 75 } | |
| 76 | |
| 77 // static | |
| 78 scoped_ptr<gpu::GpuMemoryBuffer> GpuMemoryBufferImpl::CreateGpuMemoryBuffer( | |
| 79 int width, int height) { | |
| 80 DCHECK(width > 0); | |
| 81 DCHECK(height > 0); | |
| 82 scoped_ptr<GpuMemoryBufferImpl> result(new GpuMemoryBufferImpl( | |
| 83 gfx::Size(width, height))); | |
| 84 | |
| 85 // Check if the buffer allocation succeeded. | |
| 86 if (!result->InitCheck()) | |
| 87 return scoped_ptr<GpuMemoryBuffer>(); | |
| 88 | |
| 89 return result.PassAs<gpu::GpuMemoryBuffer>(); | |
| 90 } | |
| 91 | |
| 92 // static | |
| 93 void GpuMemoryBufferImpl::SetAwDrawGLFunctionTable( | |
| 94 AwDrawGLFunctionTable* table) { | |
| 95 g_gl_draw_functions = table; | |
| 96 gpu::GLInProcessContext::SetGpuMemoryBufferCreator(&CreateGpuMemoryBuffer); | |
| 97 } | |
| 98 | |
| 99 } // namespace android_webview | |
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Chromium Code Reviews
Issue 20017005:
gpu: Refactor GpuMemoryBuffer framework for multi-process support. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src