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Side by Side Diff: ui/gfx/gpu_memory_buffer.h

Issue 255713008: Change glimage to accept a type. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: First draft Created 6 years, 7 months ago
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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 "base/memory/shared_memory.h" 8 #include "base/memory/shared_memory.h"
9 #include "build/build_config.h" 9 #include "build/build_config.h"
10 #include "ui/gfx/gfx_export.h" 10 #include "ui/gfx/gfx_export.h"
11 11
12 #if defined(OS_ANDROID) 12 #if defined(OS_ANDROID)
13 #include <third_party/khronos/EGL/egl.h> 13 #include <third_party/khronos/EGL/egl.h>
14 #endif 14 #endif
15 15
16 #if defined(USE_OZONE)
17 #include "ui/gfx/ozone/surface_factory_ozone.h"
18 #endif
19
16 namespace gfx { 20 namespace gfx {
17 21
18 enum GpuMemoryBufferType { 22 enum GpuMemoryBufferType {
19 EMPTY_BUFFER, 23 EMPTY_BUFFER,
20 SHARED_MEMORY_BUFFER, 24 SHARED_MEMORY_BUFFER,
21 IO_SURFACE_BUFFER, 25 IO_SURFACE_BUFFER,
22 ANDROID_NATIVE_BUFFER, 26 ANDROID_NATIVE_BUFFER,
23 SURFACE_TEXTURE_BUFFER, 27 SURFACE_TEXTURE_BUFFER,
24 GPU_MEMORY_BUFFER_TYPE_LAST = SURFACE_TEXTURE_BUFFER 28 OZONE_NATIVE_BUFFER,
29 GPU_MEMORY_BUFFER_TYPE_LAST = OZONE_NATIVE_BUFFER
25 }; 30 };
26 31
27 #if defined(OS_ANDROID) 32 #if defined(OS_ANDROID)
28 struct SurfaceTextureId { 33 struct SurfaceTextureId {
29 SurfaceTextureId() : primary_id(0), secondary_id(0) {} 34 SurfaceTextureId() : primary_id(0), secondary_id(0) {}
30 SurfaceTextureId(int32 primary_id, int32 secondary_id) 35 SurfaceTextureId(int32 primary_id, int32 secondary_id)
31 : primary_id(primary_id), secondary_id(secondary_id) {} 36 : primary_id(primary_id), secondary_id(secondary_id) {}
32 int32 primary_id; 37 int32 primary_id;
33 int32 secondary_id; 38 int32 secondary_id;
34 }; 39 };
(...skipping 16 matching lines...) Expand all
51 bool is_null() const { return type == EMPTY_BUFFER; } 56 bool is_null() const { return type == EMPTY_BUFFER; }
52 GpuMemoryBufferType type; 57 GpuMemoryBufferType type;
53 base::SharedMemoryHandle handle; 58 base::SharedMemoryHandle handle;
54 #if defined(OS_MACOSX) 59 #if defined(OS_MACOSX)
55 uint32 io_surface_id; 60 uint32 io_surface_id;
56 #endif 61 #endif
57 #if defined(OS_ANDROID) 62 #if defined(OS_ANDROID)
58 EGLClientBuffer native_buffer; 63 EGLClientBuffer native_buffer;
59 SurfaceTextureId surface_texture_id; 64 SurfaceTextureId surface_texture_id;
60 #endif 65 #endif
66 #if defined(OS_MACOSX)
67 uint32 io_surface_id;
68 #endif
69 #if defined(USE_OZONE)
70 gfx::NativeBufferOzone ozone_native_buffer;
71 #endif
61 }; 72 };
62 73
63 // This interface typically correspond to a type of shared memory that is also 74 // 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 75 // 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. 76 // regular CPU code, but can also be read by the GPU.
66 class GFX_EXPORT GpuMemoryBuffer { 77 class GFX_EXPORT GpuMemoryBuffer {
67 public: 78 public:
68 enum AccessMode { READ_ONLY, WRITE_ONLY, READ_WRITE }; 79 enum Usage { READ_WRITE, SCANOUT, USAGE_LAST = SCANOUT };
69
70 GpuMemoryBuffer(); 80 GpuMemoryBuffer();
71 virtual ~GpuMemoryBuffer(); 81 virtual ~GpuMemoryBuffer();
72 82
73 // Maps the buffer into the client's address space so it can be written to by 83 // Maps the buffer into the client's address space so it can be written to by
74 // the CPU. This call may block, for instance if the GPU needs to finish 84 // the CPU. This call may block, for instance if the GPU needs to finish
75 // accessing the buffer or if CPU caches need to be synchronized. |mode| 85 // accessing the buffer or if CPU caches need to be synchronized. |mode|
76 // indicate how the client intends to use the mapped buffer. Returns NULL on 86 // indicate how the client intends to use the mapped buffer. Returns NULL on
77 // failure. 87 // failure.
78 virtual void* Map(AccessMode mode) = 0; 88 virtual void* Map() = 0;
reveman 2014/04/29 20:04:43 Can we start be making this change first and all t
79 89
80 // Unmaps the buffer. It's illegal to use the pointer returned by Map() after 90 // Unmaps the buffer. It's illegal to use the pointer returned by Map() after
81 // this has been called. 91 // this has been called.
82 virtual void Unmap() = 0; 92 virtual void Unmap() = 0;
83 93
84 // Returns true iff the buffer is mapped. 94 // Returns true iff the buffer is mapped.
85 virtual bool IsMapped() const = 0; 95 virtual bool IsMapped() const = 0;
86 96
87 // Returns the stride in bytes for the buffer. 97 // Returns the stride in bytes for the buffer.
88 virtual uint32 GetStride() const = 0; 98 virtual uint32 GetStride() const = 0;
89 99
90 // Returns a platform specific handle for this buffer. 100 // Returns a platform specific handle for this buffer.
91 virtual GpuMemoryBufferHandle GetHandle() const = 0; 101 virtual GpuMemoryBufferHandle GetHandle() const = 0;
92 }; 102 };
93 103
94 } // namespace gfx 104 } // namespace gfx
95 105
96 #endif // UI_GFX_GPU_MEMORY_BUFFER_H_ 106 #endif // UI_GFX_GPU_MEMORY_BUFFER_H_
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