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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
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boliu
2014/09/29 15:47:18
remove this and header from android_webview/androi
reveman
2014/09/29 18:32:09
Done.
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| 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_factory_impl.h" | |
| 6 | |
| 7 #include "android_webview/public/browser/draw_gl.h" | |
| 8 #include "base/logging.h" | |
| 9 #include "gpu/command_buffer/service/in_process_command_buffer.h" | |
| 10 #include "ui/gfx/gpu_memory_buffer.h" | |
| 11 #include "ui/gfx/size.h" | |
| 12 #include "ui/gl/gl_bindings.h" | |
| 13 #include "ui/gl/gl_image_android_native_buffer.h" | |
| 14 | |
| 15 namespace android_webview { | |
| 16 | |
| 17 namespace { | |
| 18 | |
| 19 // Provides hardware rendering functions from the Android glue layer. | |
| 20 AwDrawGLFunctionTable* g_gl_draw_functions = NULL; | |
| 21 | |
| 22 class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer { | |
| 23 public: | |
| 24 GpuMemoryBufferImpl(long buffer_id, const gfx::Size& size) | |
| 25 : buffer_id_(buffer_id), size_(size), mapped_(false) { | |
| 26 DCHECK(buffer_id_); | |
| 27 } | |
| 28 | |
| 29 virtual ~GpuMemoryBufferImpl() { | |
| 30 g_gl_draw_functions->release_graphic_buffer(buffer_id_); | |
| 31 } | |
| 32 | |
| 33 // Overridden from gfx::GpuMemoryBuffer: | |
| 34 virtual void* Map() OVERRIDE { | |
| 35 void* vaddr = NULL; | |
| 36 int err = g_gl_draw_functions->map(buffer_id_, MAP_READ_WRITE, &vaddr); | |
| 37 DCHECK(!err); | |
| 38 mapped_ = true; | |
| 39 return vaddr; | |
| 40 } | |
| 41 virtual void Unmap() OVERRIDE { | |
| 42 int err = g_gl_draw_functions->unmap(buffer_id_); | |
| 43 DCHECK(!err); | |
| 44 mapped_ = false; | |
| 45 } | |
| 46 virtual bool IsMapped() const OVERRIDE { return mapped_; } | |
| 47 virtual uint32 GetStride() const OVERRIDE { | |
| 48 return g_gl_draw_functions->get_stride(buffer_id_); | |
| 49 } | |
| 50 virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE { | |
| 51 gfx::GpuMemoryBufferHandle handle; | |
| 52 handle.type = gfx::ANDROID_NATIVE_BUFFER; | |
| 53 handle.buffer_id = buffer_id_; | |
| 54 return handle; | |
| 55 } | |
| 56 | |
| 57 private: | |
| 58 long buffer_id_; | |
| 59 gfx::Size size_; | |
| 60 bool mapped_; | |
| 61 | |
| 62 DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl); | |
| 63 }; | |
| 64 | |
| 65 } // namespace | |
| 66 | |
| 67 GpuMemoryBufferFactoryImpl::GpuMemoryBufferFactoryImpl() { | |
| 68 } | |
| 69 | |
| 70 GpuMemoryBufferFactoryImpl::~GpuMemoryBufferFactoryImpl() { | |
| 71 } | |
| 72 | |
| 73 scoped_ptr<gfx::GpuMemoryBuffer> | |
| 74 GpuMemoryBufferFactoryImpl::AllocateGpuMemoryBuffer(size_t width, | |
| 75 size_t height, | |
| 76 unsigned internalformat, | |
| 77 unsigned usage) { | |
| 78 // For Android WebView we assume the |internalformat| will always be | |
| 79 // GL_RGBA8_OES. | |
| 80 CHECK_EQ(static_cast<GLenum>(GL_RGBA8_OES), internalformat); | |
| 81 CHECK(g_gl_draw_functions); | |
| 82 long buffer_id = g_gl_draw_functions->create_graphic_buffer(width, height); | |
| 83 if (!buffer_id) | |
| 84 return scoped_ptr<gfx::GpuMemoryBuffer>(); | |
| 85 | |
| 86 return make_scoped_ptr( | |
| 87 new GpuMemoryBufferImpl(buffer_id, gfx::Size(width, height))) | |
| 88 .PassAs<gfx::GpuMemoryBuffer>(); | |
| 89 } | |
| 90 | |
| 91 scoped_refptr<gfx::GLImage> | |
| 92 GpuMemoryBufferFactoryImpl::CreateImageForGpuMemoryBuffer( | |
| 93 const gfx::GpuMemoryBufferHandle& handle, | |
| 94 const gfx::Size& size, | |
| 95 unsigned internalformat) { | |
| 96 DCHECK_EQ(gfx::ANDROID_NATIVE_BUFFER, handle.type); | |
| 97 | |
| 98 EGLClientBuffer native_buffer = | |
| 99 g_gl_draw_functions->get_native_buffer(handle.buffer_id); | |
| 100 DCHECK(native_buffer); | |
| 101 | |
| 102 scoped_refptr<gfx::GLImageAndroidNativeBuffer> image( | |
| 103 new gfx::GLImageAndroidNativeBuffer(size)); | |
| 104 if (!image->Initialize(native_buffer)) | |
| 105 return scoped_refptr<gfx::GLImage>(); | |
| 106 | |
| 107 return image; | |
| 108 } | |
| 109 | |
| 110 // static | |
| 111 void GpuMemoryBufferFactoryImpl::SetAwDrawGLFunctionTable( | |
| 112 AwDrawGLFunctionTable* table) { | |
| 113 g_gl_draw_functions = table; | |
| 114 } | |
| 115 | |
| 116 bool GpuMemoryBufferFactoryImpl::Initialize() { | |
| 117 if (!g_gl_draw_functions) | |
| 118 return false; | |
| 119 | |
| 120 gpu::InProcessCommandBuffer::SetGpuMemoryBufferFactory(this); | |
| 121 return true; | |
| 122 } | |
| 123 | |
| 124 } // namespace android_webview | |
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