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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" | 8 #include "base/numerics/safe_math.h" |
| 9 #include "content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h" | 9 #include "content/common/gpu/client/gpu_memory_buffer_impl_shared_memory.h" |
| 10 #include "ui/gfx/buffer_format_util.h" |
| 10 #include "ui/gl/gl_bindings.h" | 11 #include "ui/gl/gl_bindings.h" |
| 11 | 12 |
| 12 #if defined(OS_MACOSX) | 13 #if defined(OS_MACOSX) |
| 13 #include "content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h" | 14 #include "content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h" |
| 14 #endif | 15 #endif |
| 15 | 16 |
| 16 #if defined(OS_ANDROID) | 17 #if defined(OS_ANDROID) |
| 17 #include "content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.h" | 18 #include "content/common/gpu/client/gpu_memory_buffer_impl_surface_texture.h" |
| 18 #endif | 19 #endif |
| 19 | 20 |
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| 71 } | 72 } |
| 72 } | 73 } |
| 73 | 74 |
| 74 // static | 75 // static |
| 75 GpuMemoryBufferImpl* GpuMemoryBufferImpl::FromClientBuffer( | 76 GpuMemoryBufferImpl* GpuMemoryBufferImpl::FromClientBuffer( |
| 76 ClientBuffer buffer) { | 77 ClientBuffer buffer) { |
| 77 return reinterpret_cast<GpuMemoryBufferImpl*>(buffer); | 78 return reinterpret_cast<GpuMemoryBufferImpl*>(buffer); |
| 78 } | 79 } |
| 79 | 80 |
| 80 // static | 81 // static |
| 81 size_t GpuMemoryBufferImpl::NumberOfPlanesForGpuMemoryBufferFormat( | |
| 82 gfx::BufferFormat format) { | |
| 83 switch (format) { | |
| 84 case gfx::BufferFormat::ATC: | |
| 85 case gfx::BufferFormat::ATCIA: | |
| 86 case gfx::BufferFormat::DXT1: | |
| 87 case gfx::BufferFormat::DXT5: | |
| 88 case gfx::BufferFormat::ETC1: | |
| 89 case gfx::BufferFormat::R_8: | |
| 90 case gfx::BufferFormat::RGBA_4444: | |
| 91 case gfx::BufferFormat::RGBA_8888: | |
| 92 case gfx::BufferFormat::RGBX_8888: | |
| 93 case gfx::BufferFormat::BGRA_8888: | |
| 94 return 1; | |
| 95 case gfx::BufferFormat::YUV_420: | |
| 96 return 3; | |
| 97 } | |
| 98 NOTREACHED(); | |
| 99 return 0; | |
| 100 } | |
| 101 | |
| 102 // static | |
| 103 size_t GpuMemoryBufferImpl::SubsamplingFactor(gfx::BufferFormat format, | 82 size_t GpuMemoryBufferImpl::SubsamplingFactor(gfx::BufferFormat format, |
| 104 int plane) { | 83 int plane) { |
| 105 switch (format) { | 84 switch (format) { |
| 106 case gfx::BufferFormat::ATC: | 85 case gfx::BufferFormat::ATC: |
| 107 case gfx::BufferFormat::ATCIA: | 86 case gfx::BufferFormat::ATCIA: |
| 108 case gfx::BufferFormat::DXT1: | 87 case gfx::BufferFormat::DXT1: |
| 109 case gfx::BufferFormat::DXT5: | 88 case gfx::BufferFormat::DXT5: |
| 110 case gfx::BufferFormat::ETC1: | 89 case gfx::BufferFormat::ETC1: |
| 111 case gfx::BufferFormat::R_8: | 90 case gfx::BufferFormat::R_8: |
| 112 case gfx::BufferFormat::RGBA_4444: | 91 case gfx::BufferFormat::RGBA_4444: |
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| 169 } | 148 } |
| 170 NOTREACHED(); | 149 NOTREACHED(); |
| 171 return false; | 150 return false; |
| 172 } | 151 } |
| 173 | 152 |
| 174 // static | 153 // static |
| 175 bool GpuMemoryBufferImpl::BufferSizeInBytes(const gfx::Size& size, | 154 bool GpuMemoryBufferImpl::BufferSizeInBytes(const gfx::Size& size, |
| 176 gfx::BufferFormat format, | 155 gfx::BufferFormat format, |
| 177 size_t* size_in_bytes) { | 156 size_t* size_in_bytes) { |
| 178 base::CheckedNumeric<size_t> checked_size = 0; | 157 base::CheckedNumeric<size_t> checked_size = 0; |
| 179 size_t num_planes = NumberOfPlanesForGpuMemoryBufferFormat(format); | 158 size_t num_planes = gfx::NumberOfPlanesForBufferFormat(format); |
| 180 for (size_t i = 0; i < num_planes; ++i) { | 159 for (size_t i = 0; i < num_planes; ++i) { |
| 181 size_t row_size_in_bytes = 0; | 160 size_t row_size_in_bytes = 0; |
| 182 if (!RowSizeInBytes(size.width(), format, i, &row_size_in_bytes)) | 161 if (!RowSizeInBytes(size.width(), format, i, &row_size_in_bytes)) |
| 183 return false; | 162 return false; |
| 184 base::CheckedNumeric<size_t> checked_plane_size = row_size_in_bytes; | 163 base::CheckedNumeric<size_t> checked_plane_size = row_size_in_bytes; |
| 185 checked_plane_size *= size.height() / SubsamplingFactor(format, i); | 164 checked_plane_size *= size.height() / SubsamplingFactor(format, i); |
| 186 if (!checked_plane_size.IsValid()) | 165 if (!checked_plane_size.IsValid()) |
| 187 return false; | 166 return false; |
| 188 checked_size += checked_plane_size.ValueOrDie(); | 167 checked_size += checked_plane_size.ValueOrDie(); |
| 189 if (!checked_size.IsValid()) | 168 if (!checked_size.IsValid()) |
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| 203 | 182 |
| 204 gfx::GpuMemoryBufferId GpuMemoryBufferImpl::GetId() const { | 183 gfx::GpuMemoryBufferId GpuMemoryBufferImpl::GetId() const { |
| 205 return id_; | 184 return id_; |
| 206 } | 185 } |
| 207 | 186 |
| 208 ClientBuffer GpuMemoryBufferImpl::AsClientBuffer() { | 187 ClientBuffer GpuMemoryBufferImpl::AsClientBuffer() { |
| 209 return reinterpret_cast<ClientBuffer>(this); | 188 return reinterpret_cast<ClientBuffer>(this); |
| 210 } | 189 } |
| 211 | 190 |
| 212 } // namespace content | 191 } // namespace content |
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