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Side by Side Diff: components/mus/gles2/mojo_gpu_memory_buffer.cc

Issue 1344573002: Mandoline: Rename components/view_manager to components/mus (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Rebased Created 5 years, 3 months ago
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1 // Copyright 2015 The Chromium Authors. All rights reserved. 1 // Copyright 2015 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 "components/view_manager/gles2/mojo_gpu_memory_buffer.h" 5 #include "components/mus/gles2/mojo_gpu_memory_buffer.h"
6 6
7 #include "base/logging.h" 7 #include "base/logging.h"
8 #include "base/memory/shared_memory.h" 8 #include "base/memory/shared_memory.h"
9 #include "base/numerics/safe_conversions.h" 9 #include "base/numerics/safe_conversions.h"
10 #include "ui/gfx/buffer_format_util.h" 10 #include "ui/gfx/buffer_format_util.h"
11 11
12 namespace gles2 { 12 namespace gles2 {
13 13
14 MojoGpuMemoryBufferImpl::MojoGpuMemoryBufferImpl( 14 MojoGpuMemoryBufferImpl::MojoGpuMemoryBufferImpl(
15 const gfx::Size& size, 15 const gfx::Size& size,
16 gfx::BufferFormat format, 16 gfx::BufferFormat format,
17 scoped_ptr<base::SharedMemory> shared_memory) 17 scoped_ptr<base::SharedMemory> shared_memory)
18 : size_(size), 18 : size_(size),
19 format_(format), 19 format_(format),
20 shared_memory_(shared_memory.Pass()), 20 shared_memory_(shared_memory.Pass()),
21 mapped_(false) {} 21 mapped_(false) {}
22 22
23 MojoGpuMemoryBufferImpl::~MojoGpuMemoryBufferImpl() { 23 MojoGpuMemoryBufferImpl::~MojoGpuMemoryBufferImpl() {}
24 }
25 24
26 scoped_ptr<gfx::GpuMemoryBuffer> MojoGpuMemoryBufferImpl::Create( 25 scoped_ptr<gfx::GpuMemoryBuffer> MojoGpuMemoryBufferImpl::Create(
27 const gfx::Size& size, 26 const gfx::Size& size,
28 gfx::BufferFormat format, 27 gfx::BufferFormat format,
29 gfx::BufferUsage usage) { 28 gfx::BufferUsage usage) {
30 size_t bytes = gfx::BufferSizeForBufferFormat(size, format); 29 size_t bytes = gfx::BufferSizeForBufferFormat(size, format);
31 scoped_ptr<base::SharedMemory> shared_memory(new base::SharedMemory); 30 scoped_ptr<base::SharedMemory> shared_memory(new base::SharedMemory);
32 if (!shared_memory->CreateAnonymous(bytes)) 31 if (!shared_memory->CreateAnonymous(bytes))
33 return nullptr; 32 return nullptr;
34 return make_scoped_ptr<gfx::GpuMemoryBuffer>( 33 return make_scoped_ptr<gfx::GpuMemoryBuffer>(
35 new MojoGpuMemoryBufferImpl(size, format, shared_memory.Pass())); 34 new MojoGpuMemoryBufferImpl(size, format, shared_memory.Pass()));
36 } 35 }
37 36
38 MojoGpuMemoryBufferImpl* MojoGpuMemoryBufferImpl::FromClientBuffer( 37 MojoGpuMemoryBufferImpl* MojoGpuMemoryBufferImpl::FromClientBuffer(
39 ClientBuffer buffer) { 38 ClientBuffer buffer) {
40 return reinterpret_cast<MojoGpuMemoryBufferImpl*>(buffer); 39 return reinterpret_cast<MojoGpuMemoryBufferImpl*>(buffer);
41 } 40 }
42 41
43 const unsigned char* MojoGpuMemoryBufferImpl::GetMemory() const { 42 const unsigned char* MojoGpuMemoryBufferImpl::GetMemory() const {
44 return static_cast<const unsigned char*>(shared_memory_->memory()); 43 return static_cast<const unsigned char*>(shared_memory_->memory());
45 } 44 }
46 45
47 bool MojoGpuMemoryBufferImpl::Map(void** data) { 46 bool MojoGpuMemoryBufferImpl::Map(void** data) {
48 DCHECK(!mapped_); 47 DCHECK(!mapped_);
49 if (!shared_memory_->Map(gfx::BufferSizeForBufferFormat(size_, format_))) 48 if (!shared_memory_->Map(gfx::BufferSizeForBufferFormat(size_, format_)))
50 return false; 49 return false;
51 mapped_ = true; 50 mapped_ = true;
52 size_t offset = 0; 51 size_t offset = 0;
53 int num_planes = static_cast<int>( 52 int num_planes =
54 gfx::NumberOfPlanesForBufferFormat(format_)); 53 static_cast<int>(gfx::NumberOfPlanesForBufferFormat(format_));
55 for (int i = 0; i < num_planes; ++i) { 54 for (int i = 0; i < num_planes; ++i) {
56 data[i] = reinterpret_cast<uint8*>(shared_memory_->memory()) + offset; 55 data[i] = reinterpret_cast<uint8*>(shared_memory_->memory()) + offset;
57 offset += 56 offset +=
58 gfx::RowSizeForBufferFormat(size_.width(), format_, i) * 57 gfx::RowSizeForBufferFormat(size_.width(), format_, i) *
59 (size_.height() / gfx::SubsamplingFactorForBufferFormat(format_, i)); 58 (size_.height() / gfx::SubsamplingFactorForBufferFormat(format_, i));
60 } 59 }
61 return true; 60 return true;
62 } 61 }
63 62
64 void MojoGpuMemoryBufferImpl::Unmap() { 63 void MojoGpuMemoryBufferImpl::Unmap() {
65 DCHECK(mapped_); 64 DCHECK(mapped_);
66 shared_memory_->Unmap(); 65 shared_memory_->Unmap();
67 mapped_ = false; 66 mapped_ = false;
68 } 67 }
69 68
70 bool MojoGpuMemoryBufferImpl::IsMapped() const { 69 bool MojoGpuMemoryBufferImpl::IsMapped() const {
71 return mapped_; 70 return mapped_;
72 } 71 }
73 72
74 gfx::BufferFormat MojoGpuMemoryBufferImpl::GetFormat() const { 73 gfx::BufferFormat MojoGpuMemoryBufferImpl::GetFormat() const {
75 return format_; 74 return format_;
76 } 75 }
77 76
78 void MojoGpuMemoryBufferImpl::GetStride(int* stride) const { 77 void MojoGpuMemoryBufferImpl::GetStride(int* stride) const {
79 int num_planes = static_cast<int>( 78 int num_planes =
80 gfx::NumberOfPlanesForBufferFormat(format_)); 79 static_cast<int>(gfx::NumberOfPlanesForBufferFormat(format_));
81 for (int i = 0; i < num_planes; ++i) 80 for (int i = 0; i < num_planes; ++i)
82 stride[i] = base::checked_cast<int>( 81 stride[i] = base::checked_cast<int>(
83 gfx::RowSizeForBufferFormat(size_.width(), format_, i)); 82 gfx::RowSizeForBufferFormat(size_.width(), format_, i));
84 } 83 }
85 84
86 gfx::GpuMemoryBufferId MojoGpuMemoryBufferImpl::GetId() const { 85 gfx::GpuMemoryBufferId MojoGpuMemoryBufferImpl::GetId() const {
87 return gfx::GpuMemoryBufferId(0); 86 return gfx::GpuMemoryBufferId(0);
88 } 87 }
89 88
90 gfx::GpuMemoryBufferHandle MojoGpuMemoryBufferImpl::GetHandle() const { 89 gfx::GpuMemoryBufferHandle MojoGpuMemoryBufferImpl::GetHandle() const {
91 gfx::GpuMemoryBufferHandle handle; 90 gfx::GpuMemoryBufferHandle handle;
92 handle.type = gfx::SHARED_MEMORY_BUFFER; 91 handle.type = gfx::SHARED_MEMORY_BUFFER;
93 handle.handle = shared_memory_->handle(); 92 handle.handle = shared_memory_->handle();
94 return handle; 93 return handle;
95 } 94 }
96 95
97 ClientBuffer MojoGpuMemoryBufferImpl::AsClientBuffer() { 96 ClientBuffer MojoGpuMemoryBufferImpl::AsClientBuffer() {
98 return reinterpret_cast<ClientBuffer>(this); 97 return reinterpret_cast<ClientBuffer>(this);
99 } 98 }
100 99
101 } // namespace gles2 100 } // namespace gles2
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