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95cbc86ade
There were two problems (both fixed in this CL): 1) When we were resized by the view manager, we forgot to deflate by the device-pixel-ratio when converting to engine types. That caused use to allocate a backing texture that was 9x what we needed. 2) When the surfaces system returned textures to us for re-use, we'd put them into the cache even if they were the old size. That caused us to thrash the texture cache. In this CL, we make the size of the textures in the cache explicit. R=eseidel@chromium.org BUG=449001 Review URL: https://codereview.chromium.org/868263002
94 lines
3.2 KiB
C++
94 lines
3.2 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sky/compositor/resource_manager.h"
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#ifndef GL_GLEXT_PROTOTYPES
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#define GL_GLEXT_PROTOTYPES
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#endif
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#include "base/logging.h"
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#include "base/stl_util.h"
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#include "gpu/GLES2/gl2chromium.h"
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#include "gpu/GLES2/gl2extchromium.h"
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#include "mojo/converters/geometry/geometry_type_converters.h"
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#include "mojo/gpu/gl_context.h"
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#include "mojo/gpu/gl_texture.h"
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#include "mojo/public/c/gles2/gles2.h"
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#include "sky/compositor/layer.h"
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namespace sky {
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ResourceManager::ResourceManager(base::WeakPtr<mojo::GLContext> gl_context)
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: gl_context_(gl_context), next_resource_id_(0) {
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}
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ResourceManager::~ResourceManager() {
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STLDeleteContainerPairSecondPointers(resource_to_texture_map_.begin(),
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resource_to_texture_map_.end());
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}
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scoped_ptr<mojo::GLTexture> ResourceManager::CreateTexture(
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const gfx::Size& size) {
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scoped_ptr<mojo::GLTexture> texture = texture_cache_.GetTexture(size);
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if (texture)
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return texture.Pass();
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gl_context_->MakeCurrent();
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return make_scoped_ptr(new mojo::GLTexture(
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gl_context_, mojo::TypeConverter<mojo::Size, gfx::Size>::Convert(size)));
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}
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mojo::TransferableResourcePtr ResourceManager::CreateTransferableResource(
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Layer* layer) {
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scoped_ptr<mojo::GLTexture> texture = layer->GetTexture();
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mojo::Size size = texture->size();
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gl_context_->MakeCurrent();
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glBindTexture(GL_TEXTURE_2D, texture->texture_id());
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GLbyte mailbox[GL_MAILBOX_SIZE_CHROMIUM];
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glGenMailboxCHROMIUM(mailbox);
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glProduceTextureCHROMIUM(GL_TEXTURE_2D, mailbox);
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GLuint sync_point = glInsertSyncPointCHROMIUM();
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mojo::TransferableResourcePtr resource = mojo::TransferableResource::New();
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resource->id = next_resource_id_++;
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resource_to_texture_map_[resource->id] = texture.release();
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resource->format = mojo::RESOURCE_FORMAT_RGBA_8888;
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resource->filter = GL_LINEAR;
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resource->size = size.Clone();
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resource->is_repeated = false;
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resource->is_software = false;
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mojo::MailboxHolderPtr mailbox_holder = mojo::MailboxHolder::New();
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mailbox_holder->mailbox = mojo::Mailbox::New();
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for (int i = 0; i < GL_MAILBOX_SIZE_CHROMIUM; ++i)
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mailbox_holder->mailbox->name.push_back(mailbox[i]);
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mailbox_holder->texture_target = GL_TEXTURE_2D;
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mailbox_holder->sync_point = sync_point;
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resource->mailbox_holder = mailbox_holder.Pass();
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return resource.Pass();
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}
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void ResourceManager::ReturnResources(
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mojo::Array<mojo::ReturnedResourcePtr> resources) {
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DCHECK(resources.size());
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gl_context_->MakeCurrent();
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for (size_t i = 0u; i < resources.size(); ++i) {
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mojo::ReturnedResourcePtr resource = resources[i].Pass();
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DCHECK_EQ(1, resource->count);
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auto iter = resource_to_texture_map_.find(resource->id);
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if (iter == resource_to_texture_map_.end())
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continue;
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scoped_ptr<mojo::GLTexture> texture(iter->second);
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DCHECK_NE(0u, texture->texture_id());
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resource_to_texture_map_.erase(iter);
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glWaitSyncPointCHROMIUM(resource->sync_point);
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texture_cache_.PutTexture(texture.Pass());
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}
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}
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} // namespace examples
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