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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 #include "content/common/gpu/client/gpu_memory_buffer_impl.h" | 5 #include "content/common/gpu/client/gpu_memory_buffer_impl.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/numerics/safe_math.h" | |
9 #include "content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h" | 8 #include "content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h" |
10 #include "ui/gl/gl_bindings.h" | 9 #include "ui/gl/gl_bindings.h" |
11 | 10 |
12 #if defined(OS_MACOSX) | 11 #if defined(OS_MACOSX) |
13 #include "content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h" | 12 #include "content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h" |
14 #endif | 13 #endif |
15 | 14 |
16 #if defined(OS_ANDROID) | 15 #if defined(OS_ANDROID) |
17 #include "content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.h" | 16 #include "content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.h" |
18 #endif | 17 #endif |
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70 } | 69 } |
71 } | 70 } |
72 | 71 |
73 // static | 72 // static |
74 GpuMemoryBufferImpl* GpuMemoryBufferImpl::FromClientBuffer( | 73 GpuMemoryBufferImpl* GpuMemoryBufferImpl::FromClientBuffer( |
75 ClientBuffer buffer) { | 74 ClientBuffer buffer) { |
76 return reinterpret_cast<GpuMemoryBufferImpl*>(buffer); | 75 return reinterpret_cast<GpuMemoryBufferImpl*>(buffer); |
77 } | 76 } |
78 | 77 |
79 // static | 78 // static |
80 bool GpuMemoryBufferImpl::StrideInBytes(size_t width, | 79 size_t GpuMemoryBufferImpl::BytesPerPixel(Format format) { |
81 Format format, | |
82 size_t* stride_in_bytes) { | |
83 base::CheckedNumeric<size_t> s = width; | |
84 switch (format) { | 80 switch (format) { |
85 case RGBA_8888: | 81 case RGBA_8888: |
86 case RGBX_8888: | 82 case RGBX_8888: |
87 case BGRA_8888: | 83 case BGRA_8888: |
88 s *= 4; | 84 return 4; |
89 if (!s.IsValid()) | |
90 return false; | |
91 | |
92 *stride_in_bytes = s.ValueOrDie(); | |
93 return true; | |
94 } | 85 } |
95 | 86 |
96 NOTREACHED(); | 87 NOTREACHED(); |
97 return false; | 88 return 0; |
98 } | 89 } |
99 | 90 |
100 gfx::GpuMemoryBuffer::Format GpuMemoryBufferImpl::GetFormat() const { | 91 gfx::GpuMemoryBuffer::Format GpuMemoryBufferImpl::GetFormat() const { |
101 return format_; | 92 return format_; |
102 } | 93 } |
103 | 94 |
104 bool GpuMemoryBufferImpl::IsMapped() const { | 95 bool GpuMemoryBufferImpl::IsMapped() const { |
105 return mapped_; | 96 return mapped_; |
106 } | 97 } |
107 | 98 |
108 ClientBuffer GpuMemoryBufferImpl::AsClientBuffer() { | 99 ClientBuffer GpuMemoryBufferImpl::AsClientBuffer() { |
109 return reinterpret_cast<ClientBuffer>(this); | 100 return reinterpret_cast<ClientBuffer>(this); |
110 } | 101 } |
111 | 102 |
112 } // namespace content | 103 } // namespace content |
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