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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 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 | 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 #ifndef UI_GFX_GPU_MEMORY_BUFFER_H_ | 5 #ifndef UI_GFX_GPU_MEMORY_BUFFER_H_ |
6 #define UI_GFX_GPU_MEMORY_BUFFER_H_ | 6 #define UI_GFX_GPU_MEMORY_BUFFER_H_ |
7 | 7 |
8 #include <stddef.h> | 8 #include <stddef.h> |
9 #include <stdint.h> | 9 #include <stdint.h> |
10 | 10 |
11 #include "base/memory/shared_memory.h" | 11 #include "base/memory/shared_memory.h" |
12 #include "base/trace_event/memory_dump_manager.h" | |
13 #include "build/build_config.h" | 12 #include "build/build_config.h" |
14 #include "ui/gfx/buffer_types.h" | 13 #include "ui/gfx/buffer_types.h" |
15 #include "ui/gfx/generic_shared_memory_id.h" | 14 #include "ui/gfx/generic_shared_memory_id.h" |
16 #include "ui/gfx/geometry/rect.h" | 15 #include "ui/gfx/geometry/rect.h" |
17 #include "ui/gfx/gfx_export.h" | 16 #include "ui/gfx/gfx_export.h" |
18 | 17 |
19 #if defined(USE_OZONE) | 18 #if defined(USE_OZONE) |
20 #include "ui/gfx/native_pixmap_handle.h" | 19 #include "ui/gfx/native_pixmap_handle.h" |
21 #elif defined(OS_MACOSX) && !defined(OS_IOS) | 20 #elif defined(OS_MACOSX) && !defined(OS_IOS) |
22 #include "ui/gfx/mac/io_surface.h" | 21 #include "ui/gfx/mac/io_surface.h" |
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49 base::SharedMemoryHandle handle; | 48 base::SharedMemoryHandle handle; |
50 uint32_t offset; | 49 uint32_t offset; |
51 int32_t stride; | 50 int32_t stride; |
52 #if defined(USE_OZONE) | 51 #if defined(USE_OZONE) |
53 NativePixmapHandle native_pixmap_handle; | 52 NativePixmapHandle native_pixmap_handle; |
54 #elif defined(OS_MACOSX) && !defined(OS_IOS) | 53 #elif defined(OS_MACOSX) && !defined(OS_IOS) |
55 ScopedRefCountedIOSurfaceMachPort mach_port; | 54 ScopedRefCountedIOSurfaceMachPort mach_port; |
56 #endif | 55 #endif |
57 }; | 56 }; |
58 | 57 |
59 base::trace_event::MemoryAllocatorDumpGuid GFX_EXPORT | |
60 GetGpuMemoryBufferGUIDForTracing(uint64_t tracing_process_id, | |
61 GpuMemoryBufferId buffer_id); | |
62 | |
63 // This interface typically correspond to a type of shared memory that is also | 58 // This interface typically correspond to a type of shared memory that is also |
64 // shared with the GPU. A GPU memory buffer can be written to directly by | 59 // shared with the GPU. A GPU memory buffer can be written to directly by |
65 // regular CPU code, but can also be read by the GPU. | 60 // regular CPU code, but can also be read by the GPU. |
66 class GFX_EXPORT GpuMemoryBuffer { | 61 class GFX_EXPORT GpuMemoryBuffer { |
67 public: | 62 public: |
68 virtual ~GpuMemoryBuffer() {} | 63 virtual ~GpuMemoryBuffer() {} |
69 | 64 |
70 // Maps each plane of the buffer into the client's address space so it can be | 65 // Maps each plane of the buffer into the client's address space so it can be |
71 // written to by the CPU. This call may block, for instance if the GPU needs | 66 // written to by the CPU. This call may block, for instance if the GPU needs |
72 // to finish accessing the buffer or if CPU caches need to be synchronized. | 67 // to finish accessing the buffer or if CPU caches need to be synchronized. |
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101 // Returns a platform specific handle for this buffer. | 96 // Returns a platform specific handle for this buffer. |
102 virtual GpuMemoryBufferHandle GetHandle() const = 0; | 97 virtual GpuMemoryBufferHandle GetHandle() const = 0; |
103 | 98 |
104 // Type-checking downcast routine. | 99 // Type-checking downcast routine. |
105 virtual ClientBuffer AsClientBuffer() = 0; | 100 virtual ClientBuffer AsClientBuffer() = 0; |
106 }; | 101 }; |
107 | 102 |
108 } // namespace gfx | 103 } // namespace gfx |
109 | 104 |
110 #endif // UI_GFX_GPU_MEMORY_BUFFER_H_ | 105 #endif // UI_GFX_GPU_MEMORY_BUFFER_H_ |
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