1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/test/test_gpu_memory_buffer_manager.h"
#include <stddef.h>
#include <stdint.h>
#include "base/logging.h"
#include "base/numerics/safe_conversions.h"
#include "ui/gfx/buffer_format_util.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace cc {
namespace {
class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
public:
GpuMemoryBufferImpl(const gfx::Size& size,
gfx::BufferFormat format,
scoped_ptr<base::SharedMemory> shared_memory,
size_t offset,
size_t stride)
: size_(size),
format_(format),
shared_memory_(std::move(shared_memory)),
offset_(offset),
stride_(stride),
mapped_(false),
is_in_use_by_window_server_(false) {}
// Overridden from gfx::GpuMemoryBuffer:
bool Map() override {
DCHECK(!mapped_);
DCHECK_EQ(stride_, gfx::RowSizeForBufferFormat(size_.width(), format_, 0));
if (!shared_memory_->Map(offset_ +
gfx::BufferSizeForBufferFormat(size_, format_)))
return false;
mapped_ = true;
return true;
}
void* memory(size_t plane) override {
DCHECK(mapped_);
DCHECK_LT(plane, gfx::NumberOfPlanesForBufferFormat(format_));
return reinterpret_cast<uint8_t*>(shared_memory_->memory()) + offset_ +
gfx::BufferOffsetForBufferFormat(size_, format_, plane);
}
void Unmap() override {
DCHECK(mapped_);
shared_memory_->Unmap();
mapped_ = false;
}
bool IsInUseByMacOSWindowServer() const override {
return is_in_use_by_window_server_;
}
gfx::Size GetSize() const override { return size_; }
gfx::BufferFormat GetFormat() const override { return format_; }
int stride(size_t plane) const override {
DCHECK_LT(plane, gfx::NumberOfPlanesForBufferFormat(format_));
return base::checked_cast<int>(gfx::RowSizeForBufferFormat(
size_.width(), format_, static_cast<int>(plane)));
}
gfx::GpuMemoryBufferId GetId() const override {
NOTREACHED();
return gfx::GpuMemoryBufferId(0);
}
gfx::GpuMemoryBufferHandle GetHandle() const override {
gfx::GpuMemoryBufferHandle handle;
handle.type = gfx::SHARED_MEMORY_BUFFER;
handle.handle = shared_memory_->handle();
handle.offset = base::checked_cast<uint32_t>(offset_);
handle.stride = base::checked_cast<int32_t>(stride_);
return handle;
}
ClientBuffer AsClientBuffer() override {
return reinterpret_cast<ClientBuffer>(this);
}
void SetIsInUseByMacOSWindowServer(bool value) {
is_in_use_by_window_server_ = value;
}
private:
const gfx::Size size_;
gfx::BufferFormat format_;
scoped_ptr<base::SharedMemory> shared_memory_;
size_t offset_;
size_t stride_;
bool mapped_;
bool is_in_use_by_window_server_;
};
} // namespace
TestGpuMemoryBufferManager::TestGpuMemoryBufferManager() {
}
TestGpuMemoryBufferManager::~TestGpuMemoryBufferManager() {
}
void TestGpuMemoryBufferManager::SetGpuMemoryBufferIsInUseByMacOSWindowServer(
gfx::GpuMemoryBuffer* gpu_memory_buffer,
bool in_use) {
static_cast<GpuMemoryBufferImpl*>(gpu_memory_buffer)
->SetIsInUseByMacOSWindowServer(in_use);
}
scoped_ptr<gfx::GpuMemoryBuffer>
TestGpuMemoryBufferManager::AllocateGpuMemoryBuffer(const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage) {
scoped_ptr<base::SharedMemory> shared_memory(new base::SharedMemory);
const size_t buffer_size = gfx::BufferSizeForBufferFormat(size, format);
if (!shared_memory->CreateAnonymous(buffer_size))
return nullptr;
return make_scoped_ptr<gfx::GpuMemoryBuffer>(new GpuMemoryBufferImpl(
size, format, std::move(shared_memory), 0,
base::checked_cast<int>(
gfx::RowSizeForBufferFormat(size.width(), format, 0))));
}
scoped_ptr<gfx::GpuMemoryBuffer>
TestGpuMemoryBufferManager::CreateGpuMemoryBufferFromHandle(
const gfx::GpuMemoryBufferHandle& handle,
const gfx::Size& size,
gfx::BufferFormat format) {
if (handle.type != gfx::SHARED_MEMORY_BUFFER)
return nullptr;
return make_scoped_ptr<gfx::GpuMemoryBuffer>(new GpuMemoryBufferImpl(
size, format,
make_scoped_ptr(new base::SharedMemory(handle.handle, false)),
handle.offset, handle.stride));
}
gfx::GpuMemoryBuffer*
TestGpuMemoryBufferManager::GpuMemoryBufferFromClientBuffer(
ClientBuffer buffer) {
return reinterpret_cast<gfx::GpuMemoryBuffer*>(buffer);
}
void TestGpuMemoryBufferManager::SetDestructionSyncToken(
gfx::GpuMemoryBuffer* buffer,
const gpu::SyncToken& sync_token) {}
} // namespace cc
|
