Expose video memory usage estimation (textures, renderbuffers, buffers) in command buffer.

This will be used by GpuMemoryManager

BUG=129739
TEST=bots
R=gman

Review URL: https://chromiumcodereview.appspot.com/10548034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@142061 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 25 insertions, 0 deletions

diff --git a/gpu/command_buffer/service/buffer_manager.h b/gpu/command_buffer/service/buffer_manager.h
index b3b4ede..49715cc 100644
--- a/gpu/command_buffer/service/buffer_manager.h
+++ b/gpu/command_buffer/service/buffer_manager.h
@@ -183,6 +183,10 @@ class GPU_EXPORT BufferManager {
     allow_buffers_on_multiple_targets_ = allow;
   }
 
+  size_t mem_represented() const {
+    return mem_represented_;
+  }
+
  private:
   void UpdateMemRepresented();
 
diff --git a/gpu/command_buffer/service/context_group.cc b/gpu/command_buffer/service/context_group.cc
index 81fd606..cc86ce5 100644
--- a/gpu/command_buffer/service/context_group.cc
+++ b/gpu/command_buffer/service/context_group.cc
@@ -239,6 +239,17 @@ IdAllocatorInterface* ContextGroup::GetIdAllocator(unsigned namespace_id) {
   return id_namespaces_[namespace_id].get();
 }
 
+uint32 ContextGroup::GetMemRepresented() const {
+  uint32 total = 0;
+  if (buffer_manager_.get())
+    total += buffer_manager_->mem_represented();
+  if (renderbuffer_manager_.get())
+    total += renderbuffer_manager_->mem_represented();
+  if (texture_manager_.get())
+    total += texture_manager_->mem_represented();
+  return total;
+}
+
 ContextGroup::~ContextGroup() {
   CHECK(num_contexts_ == 0);
 }
diff --git a/gpu/command_buffer/service/context_group.h b/gpu/command_buffer/service/context_group.h
index bf76308..2f3eaf9 100644
--- a/gpu/command_buffer/service/context_group.h
+++ b/gpu/command_buffer/service/context_group.h
@@ -122,6 +122,8 @@ class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
 
   IdAllocatorInterface* GetIdAllocator(unsigned namespace_id);
 
+  uint32 GetMemRepresented() const;
+
  private:
   friend class base::RefCounted<ContextGroup>;
   ~ContextGroup();
diff --git a/gpu/command_buffer/service/renderbuffer_manager.h b/gpu/command_buffer/service/renderbuffer_manager.h
index 483c193..6a99e2f 100644
--- a/gpu/command_buffer/service/renderbuffer_manager.h
+++ b/gpu/command_buffer/service/renderbuffer_manager.h
@@ -160,6 +160,10 @@ class GPU_EXPORT RenderbufferManager {
   // Gets a client id for a given service id.
   bool GetClientId(GLuint service_id, GLuint* client_id) const;
 
+  size_t mem_represented() const {
+    return mem_represented_;
+  }
+
  private:
   void UpdateMemRepresented();
 
diff --git a/gpu/command_buffer/service/texture_manager.h b/gpu/command_buffer/service/texture_manager.h
index 927711c..a157146 100644
--- a/gpu/command_buffer/service/texture_manager.h
+++ b/gpu/command_buffer/service/texture_manager.h
@@ -509,6 +509,10 @@ class GPU_EXPORT TextureManager {
     }
   }
 
+  uint32 mem_represented() const {
+    return mem_represented_;
+  }
+
  private:
   // Helper for Initialize().
   TextureInfo::Ref CreateDefaultAndBlackTextures(