cc/resources/scoped_resource.cc

   1 // Copyright 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 "cc/resources/scoped_resource.h"
   6
   7 namespace cc {
   8
   9 ScopedResource::ScopedResource(ResourceProvider* resource_provider)
  10     : resource_provider_(resource_provider) {
  11   DCHECK(resource_provider_);
  12 }
  13
  14 ScopedResource::~ScopedResource() {
  15   Free();
  16 }
  17
  18 void ScopedResource::Allocate(const gfx::Size& size,
  19                               ResourceProvider::TextureUsageHint hint,
  20                               ResourceFormat format) {
  21   DCHECK(!id());
  22   DCHECK(!size.IsEmpty());
  23
  24   set_dimensions(size, format);
  25   set_id(resource_provider_->CreateResource(
  26       size, GL_CLAMP_TO_EDGE, hint, format));
  27
  28 #if DCHECK_IS_ON
  29   allocate_thread_id_ = base::PlatformThread::CurrentId();
  30 #endif
  31 }
  32
  33 void ScopedResource::AllocateManaged(const gfx::Size& size,
  34                                      GLenum target,
  35                                      ResourceFormat format) {
  36   DCHECK(!id());
  37   DCHECK(!size.IsEmpty());
  38
  39   set_dimensions(size, format);
  40   set_id(resource_provider_->CreateManagedResource(
  41       size,
  42       target,
  43       GL_CLAMP_TO_EDGE,
  44       ResourceProvider::TextureUsageAny,
  45       format));
  46
  47 #if DCHECK_IS_ON
  48   allocate_thread_id_ = base::PlatformThread::CurrentId();
  49 #endif
  50 }
  51
  52 void ScopedResource::Free() {
  53   if (id()) {
  54 #if DCHECK_IS_ON
  55     DCHECK(allocate_thread_id_ == base::PlatformThread::CurrentId());
  56 #endif
  57     resource_provider_->DeleteResource(id());
  58   }
  59   set_id(0);
  60 }
  61
  62 void ScopedResource::Leak() {
  63   set_id(0);
  64 }
  65
  66 }  // namespace cc