1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "gpu/command_buffer/service/image_manager.h"
6
7 #include "ui/gl/gl_image.h"
8
9 namespace gpu {
10 namespace gles2 {
11
ImageManager()12 ImageManager::ImageManager() : release_after_use_(false) {
13 }
14
~ImageManager()15 ImageManager::~ImageManager() {
16 }
17
RegisterGpuMemoryBuffer(int32 id,gfx::GpuMemoryBufferHandle buffer,size_t width,size_t height,unsigned internalformat)18 void ImageManager::RegisterGpuMemoryBuffer(int32 id,
19 gfx::GpuMemoryBufferHandle buffer,
20 size_t width,
21 size_t height,
22 unsigned internalformat) {
23 if (id <= 0) {
24 DVLOG(0) << "Cannot register GPU memory buffer with non-positive ID.";
25 return;
26 }
27
28 if (LookupImage(id)) {
29 DVLOG(0) << "GPU memory buffer ID already in use.";
30 return;
31 }
32
33 scoped_refptr<gfx::GLImage> gl_image =
34 gfx::GLImage::CreateGLImageForGpuMemoryBuffer(buffer,
35 gfx::Size(width, height),
36 internalformat);
37 if (!gl_image)
38 return;
39
40 if (release_after_use_)
41 gl_image->SetReleaseAfterUse();
42
43 AddImage(gl_image.get(), id);
44 }
45
UnregisterGpuMemoryBuffer(int32 id)46 void ImageManager::UnregisterGpuMemoryBuffer(int32 id) {
47 RemoveImage(id);
48 }
49
AddImage(gfx::GLImage * image,int32 service_id)50 void ImageManager::AddImage(gfx::GLImage* image, int32 service_id) {
51 gl_images_[service_id] = image;
52 }
53
RemoveImage(int32 service_id)54 void ImageManager::RemoveImage(int32 service_id) {
55 gl_images_.erase(service_id);
56 }
57
LookupImage(int32 service_id)58 gfx::GLImage* ImageManager::LookupImage(int32 service_id) {
59 GLImageMap::const_iterator iter = gl_images_.find(service_id);
60 if (iter != gl_images_.end())
61 return iter->second.get();
62
63 return NULL;
64 }
65
SetReleaseAfterUse()66 void ImageManager::SetReleaseAfterUse() {
67 release_after_use_ = true;
68 }
69
70 } // namespace gles2
71 } // namespace gpu
72