GL Implementation for GPU Discardable

gpu/command_buffer/service/context_group.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gpu/command_buffer/service/context_group.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 #include <string>
 
 #include "base/command_line.h"
 #include "gpu/command_buffer/service/buffer_manager.h"
 #include "gpu/command_buffer/service/framebuffer_manager.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_passthrough.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
 #include "gpu/command_buffer/service/mailbox_manager_impl.h"
 #include "gpu/command_buffer/service/path_manager.h"
 #include "gpu/command_buffer/service/program_manager.h"
 #include "gpu/command_buffer/service/progress_reporter.h"
 #include "gpu/command_buffer/service/renderbuffer_manager.h"
 #include "gpu/command_buffer/service/sampler_manager.h"
+#include "gpu/command_buffer/service/service_discardable_manager.h"
 #include "gpu/command_buffer/service/shader_manager.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/command_buffer/service/transfer_buffer_manager.h"
 #include "ui/gl/gl_bindings.h"
 #include "ui/gl/gl_version_info.h"
 
 namespace gpu {
 namespace gles2 {
 
 namespace {
@@ skipping 28 matching lines @@
     const GpuPreferences& gpu_preferences,
     const scoped_refptr<MailboxManager>& mailbox_manager,
     const scoped_refptr<MemoryTracker>& memory_tracker,
     const scoped_refptr<ShaderTranslatorCache>& shader_translator_cache,
     const scoped_refptr<FramebufferCompletenessCache>&
         framebuffer_completeness_cache,
     const scoped_refptr<FeatureInfo>& feature_info,
     bool bind_generates_resource,
     gpu::ImageFactory* image_factory,
     ProgressReporter* progress_reporter,
-    const GpuFeatureInfo& gpu_feature_info)
+    const GpuFeatureInfo& gpu_feature_info,
+    const scoped_refptr<ServiceDiscardableManager>& discardable_manager)
     : gpu_preferences_(gpu_preferences),
       mailbox_manager_(mailbox_manager),
       memory_tracker_(memory_tracker),
       shader_translator_cache_(shader_translator_cache),
 #if defined(OS_MACOSX)
       // Framebuffer completeness is not cacheable on OS X because of dynamic
       // graphics switching.
       // http://crbug.com/180876
       // TODO(tobiasjs): determine whether GPU switching is possible
       // programmatically, rather than just hardcoding this behaviour
@@ skipping 19 matching lines @@
       min_program_texel_offset_(0),
       max_program_texel_offset_(0),
       max_transform_feedback_separate_attribs_(0u),
       max_uniform_buffer_bindings_(0u),
       uniform_buffer_offset_alignment_(1u),
       program_cache_(NULL),
       feature_info_(feature_info),
       image_factory_(image_factory),
       passthrough_resources_(new PassthroughResources),
       progress_reporter_(progress_reporter),
-      gpu_feature_info_(gpu_feature_info) {
+      gpu_feature_info_(gpu_feature_info),
+      discardable_manager_(discardable_manager) {
   {
+    CHECK(discardable_manager);
     DCHECK(feature_info_);
     if (!mailbox_manager_.get())
       mailbox_manager_ = new MailboxManagerImpl;
     transfer_buffer_manager_ = new TransferBufferManager(memory_tracker_.get());
   }
 }
 
 bool ContextGroup::Initialize(GLES2Decoder* decoder,
                               ContextType context_type,
                               const DisallowedFeatures& disallowed_features) {
@@ skipping 505 matching lines @@
     GLuint client_id, GLuint* service_id) const {
   Buffer* buffer = buffer_manager_->GetBuffer(client_id);
   if (!buffer)
     return false;
   *service_id = buffer->service_id();
   return true;
 }
 
 }  // namespace gles2
 }  // namespace gpu