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| 1 // Copyright 2014 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 "services/sky/compositor/resource_manager.h" | |
| 6 | |
| 7 #ifndef GL_GLEXT_PROTOTYPES | |
| 8 #define GL_GLEXT_PROTOTYPES | |
| 9 #endif | |
| 10 | |
| 11 #include "base/logging.h" | |
| 12 #include "base/stl_util.h" | |
| 13 #include "gpu/GLES2/gl2chromium.h" | |
| 14 #include "gpu/GLES2/gl2extchromium.h" | |
| 15 #include "mojo/converters/geometry/geometry_type_converters.h" | |
| 16 #include "mojo/gpu/gl_context.h" | |
| 17 #include "mojo/gpu/gl_texture.h" | |
| 18 #include "mojo/public/c/gles2/gles2.h" | |
| 19 #include "services/sky/compositor/layer.h" | |
| 20 | |
| 21 namespace sky { | |
| 22 | |
| 23 ResourceManager::ResourceManager(base::WeakPtr<mojo::GLContext> gl_context) | |
| 24 : gl_context_(gl_context), next_resource_id_(0) { | |
| 25 } | |
| 26 | |
| 27 ResourceManager::~ResourceManager() { | |
| 28 STLDeleteContainerPairSecondPointers(resource_to_texture_map_.begin(), | |
| 29 resource_to_texture_map_.end()); | |
| 30 } | |
| 31 | |
| 32 scoped_ptr<mojo::GLTexture> ResourceManager::CreateTexture( | |
| 33 const gfx::Size& size) { | |
| 34 scoped_ptr<mojo::GLTexture> texture = texture_cache_.GetTexture(size); | |
| 35 if (texture) | |
| 36 return texture.Pass(); | |
| 37 gl_context_->MakeCurrent(); | |
| 38 return make_scoped_ptr(new mojo::GLTexture( | |
| 39 gl_context_, mojo::TypeConverter<mojo::Size, gfx::Size>::Convert(size))); | |
| 40 } | |
| 41 | |
| 42 mojo::TransferableResourcePtr ResourceManager::CreateTransferableResource( | |
| 43 Layer* layer) { | |
| 44 scoped_ptr<mojo::GLTexture> texture = layer->GetTexture(); | |
| 45 mojo::Size size = texture->size(); | |
| 46 | |
| 47 gl_context_->MakeCurrent(); | |
| 48 glBindTexture(GL_TEXTURE_2D, texture->texture_id()); | |
| 49 GLbyte mailbox[GL_MAILBOX_SIZE_CHROMIUM]; | |
| 50 glGenMailboxCHROMIUM(mailbox); | |
| 51 glProduceTextureCHROMIUM(GL_TEXTURE_2D, mailbox); | |
| 52 GLuint sync_point = glInsertSyncPointCHROMIUM(); | |
| 53 | |
| 54 mojo::TransferableResourcePtr resource = mojo::TransferableResource::New(); | |
| 55 resource->id = next_resource_id_++; | |
| 56 resource_to_texture_map_[resource->id] = texture.release(); | |
| 57 resource->format = mojo::RESOURCE_FORMAT_RGBA_8888; | |
| 58 resource->filter = GL_LINEAR; | |
| 59 resource->size = size.Clone(); | |
| 60 resource->is_repeated = false; | |
| 61 resource->is_software = false; | |
| 62 | |
| 63 mojo::MailboxHolderPtr mailbox_holder = mojo::MailboxHolder::New(); | |
| 64 mailbox_holder->mailbox = mojo::Mailbox::New(); | |
| 65 for (int i = 0; i < GL_MAILBOX_SIZE_CHROMIUM; ++i) | |
| 66 mailbox_holder->mailbox->name.push_back(mailbox[i]); | |
| 67 mailbox_holder->texture_target = GL_TEXTURE_2D; | |
| 68 mailbox_holder->sync_point = sync_point; | |
| 69 resource->mailbox_holder = mailbox_holder.Pass(); | |
| 70 | |
| 71 return resource.Pass(); | |
| 72 } | |
| 73 | |
| 74 void ResourceManager::ReturnResources( | |
| 75 mojo::Array<mojo::ReturnedResourcePtr> resources) { | |
| 76 DCHECK(resources.size()); | |
| 77 | |
| 78 gl_context_->MakeCurrent(); | |
| 79 for (size_t i = 0u; i < resources.size(); ++i) { | |
| 80 mojo::ReturnedResourcePtr resource = resources[i].Pass(); | |
| 81 DCHECK_EQ(1, resource->count); | |
| 82 auto iter = resource_to_texture_map_.find(resource->id); | |
| 83 if (iter == resource_to_texture_map_.end()) | |
| 84 continue; | |
| 85 scoped_ptr<mojo::GLTexture> texture(iter->second); | |
| 86 DCHECK_NE(0u, texture->texture_id()); | |
| 87 resource_to_texture_map_.erase(iter); | |
| 88 glWaitSyncPointCHROMIUM(resource->sync_point); | |
| 89 texture_cache_.PutTexture(texture.Pass()); | |
| 90 } | |
| 91 } | |
| 92 | |
| 93 } // namespace examples | |
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