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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "gpu/ipc/client/gpu_memory_buffer_impl_shared_memory.h" | 5 #include "gpu/ipc/client/gpu_memory_buffer_impl_shared_memory.h" |
6 | 6 |
7 #include <stdint.h> | 7 #include <stdint.h> |
8 #include <utility> | 8 #include <utility> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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55 return base::WrapUnique(new GpuMemoryBufferImplSharedMemory( | 55 return base::WrapUnique(new GpuMemoryBufferImplSharedMemory( |
56 id, size, format, callback, std::move(shared_memory), 0, | 56 id, size, format, callback, std::move(shared_memory), 0, |
57 gfx::RowSizeForBufferFormat(size.width(), format, 0))); | 57 gfx::RowSizeForBufferFormat(size.width(), format, 0))); |
58 } | 58 } |
59 | 59 |
60 // static | 60 // static |
61 gfx::GpuMemoryBufferHandle | 61 gfx::GpuMemoryBufferHandle |
62 GpuMemoryBufferImplSharedMemory::AllocateForChildProcess( | 62 GpuMemoryBufferImplSharedMemory::AllocateForChildProcess( |
63 gfx::GpuMemoryBufferId id, | 63 gfx::GpuMemoryBufferId id, |
64 const gfx::Size& size, | 64 const gfx::Size& size, |
65 gfx::BufferFormat format, | 65 gfx::BufferFormat format) { |
66 base::ProcessHandle child_process) { | |
67 size_t buffer_size = 0u; | 66 size_t buffer_size = 0u; |
68 if (!gfx::BufferSizeForBufferFormatChecked(size, format, &buffer_size)) | 67 if (!gfx::BufferSizeForBufferFormatChecked(size, format, &buffer_size)) |
69 return gfx::GpuMemoryBufferHandle(); | 68 return gfx::GpuMemoryBufferHandle(); |
70 | 69 |
71 base::SharedMemory shared_memory; | 70 base::SharedMemory shared_memory; |
72 if (!shared_memory.CreateAnonymous(buffer_size)) | 71 if (!shared_memory.CreateAnonymous(buffer_size)) |
73 return gfx::GpuMemoryBufferHandle(); | 72 return gfx::GpuMemoryBufferHandle(); |
74 | 73 |
75 gfx::GpuMemoryBufferHandle handle; | 74 gfx::GpuMemoryBufferHandle handle; |
76 handle.type = gfx::SHARED_MEMORY_BUFFER; | 75 handle.type = gfx::SHARED_MEMORY_BUFFER; |
77 handle.id = id; | 76 handle.id = id; |
78 handle.offset = 0; | 77 handle.offset = 0; |
79 handle.stride = static_cast<int32_t>( | 78 handle.stride = static_cast<int32_t>( |
80 gfx::RowSizeForBufferFormat(size.width(), format, 0)); | 79 gfx::RowSizeForBufferFormat(size.width(), format, 0)); |
81 shared_memory.GiveToProcess(child_process, &handle.handle); | 80 handle.handle = shared_memory.TakeHandle(); |
82 return handle; | 81 return handle; |
83 } | 82 } |
84 | 83 |
85 // static | 84 // static |
86 std::unique_ptr<GpuMemoryBufferImplSharedMemory> | 85 std::unique_ptr<GpuMemoryBufferImplSharedMemory> |
87 GpuMemoryBufferImplSharedMemory::CreateFromHandle( | 86 GpuMemoryBufferImplSharedMemory::CreateFromHandle( |
88 const gfx::GpuMemoryBufferHandle& handle, | 87 const gfx::GpuMemoryBufferHandle& handle, |
89 const gfx::Size& size, | 88 const gfx::Size& size, |
90 gfx::BufferFormat format, | 89 gfx::BufferFormat format, |
91 gfx::BufferUsage usage, | 90 gfx::BufferUsage usage, |
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217 gfx::GpuMemoryBufferHandle handle; | 216 gfx::GpuMemoryBufferHandle handle; |
218 handle.type = gfx::SHARED_MEMORY_BUFFER; | 217 handle.type = gfx::SHARED_MEMORY_BUFFER; |
219 handle.id = id_; | 218 handle.id = id_; |
220 handle.offset = offset_; | 219 handle.offset = offset_; |
221 handle.stride = stride_; | 220 handle.stride = stride_; |
222 handle.handle = shared_memory_->handle(); | 221 handle.handle = shared_memory_->handle(); |
223 return handle; | 222 return handle; |
224 } | 223 } |
225 | 224 |
226 } // namespace gpu | 225 } // namespace gpu |
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