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
|
// Copyright (c) 2013 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 "gpu/command_buffer/client/gpu_memory_buffer_tracker.h"
#include "base/memory/scoped_ptr.h"
#include "gpu/command_buffer/client/gles2_implementation.h"
#include "gpu/command_buffer/client/gpu_control.h"
namespace gpu {
namespace gles2 {
GpuMemoryBufferTracker::GpuMemoryBufferTracker(GpuControl* gpu_control)
: gpu_control_(gpu_control) {
}
GpuMemoryBufferTracker::~GpuMemoryBufferTracker() {
while (!buffers_.empty()) {
RemoveBuffer(buffers_.begin()->first);
}
}
int32 GpuMemoryBufferTracker::CreateBuffer(size_t width,
size_t height,
int32 internalformat,
int32 usage) {
int32 image_id = 0;
DCHECK(gpu_control_);
gfx::GpuMemoryBuffer* buffer = gpu_control_->CreateGpuMemoryBuffer(
width, height, internalformat, usage, &image_id);
if (!buffer)
return 0;
std::pair<BufferMap::iterator, bool> result =
buffers_.insert(std::make_pair(image_id, buffer));
DCHECK(result.second);
return image_id;
}
gfx::GpuMemoryBuffer* GpuMemoryBufferTracker::GetBuffer(int32 image_id) {
BufferMap::iterator it = buffers_.find(image_id);
return (it != buffers_.end()) ? it->second : NULL;
}
void GpuMemoryBufferTracker::RemoveBuffer(int32 image_id) {
BufferMap::iterator buffer_it = buffers_.find(image_id);
if (buffer_it != buffers_.end())
buffers_.erase(buffer_it);
DCHECK(gpu_control_);
gpu_control_->DestroyGpuMemoryBuffer(image_id);
}
} // namespace gles2
} // namespace gpu
|
