src/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 bool ScopedResource::Allocate(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 #ifndef NDEBUG
  29   allocate_thread_id_ = base::PlatformThread::CurrentId();
  30 #endif
  31
  32   return id() != 0;
  33 }
  34
  35 void ScopedResource::Free() {
  36   if (id()) {
  37 #ifndef NDEBUG
  38     DCHECK(allocate_thread_id_ == base::PlatformThread::CurrentId());
  39 #endif
  40     resource_provider_->DeleteResource(id());
  41   }
  42   set_id(0);
  43 }
  44
  45 void ScopedResource::Leak() {
  46   set_id(0);
  47 }
  48
  49 }  // namespace cc