Enforce a memory limit on MappedMemoryManager

gpu/command_buffer/client/gles2_implementation.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.
 
 // A class to emulate GLES2 over command buffers.
 
 #include "gpu/command_buffer/client/gles2_implementation.h"
 
 #include <algorithm>
 #include <map>
 #include <queue>
 #include <set>
 #include <limits>
 #include <stdio.h>
 #include <string.h>
 #include <GLES2/gl2ext.h>
 #include <GLES2/gl2extchromium.h>
 #include "gpu/command_buffer/client/buffer_tracker.h"
 #include "gpu/command_buffer/client/gpu_memory_buffer_tracker.h"
-#include "gpu/command_buffer/client/mapped_memory.h"
 #include "gpu/command_buffer/client/program_info_manager.h"
 #include "gpu/command_buffer/client/query_tracker.h"
 #include "gpu/command_buffer/client/transfer_buffer.h"
 #include "gpu/command_buffer/client/vertex_array_object_manager.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/common/trace_event.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 #if defined(__native_client__) && !defined(GLES2_SUPPORT_CLIENT_SIDE_ARRAYS)
 #define GLES2_SUPPORT_CLIENT_SIDE_ARRAYS
@@ skipping 95 matching lines @@
 
   share_group_ =
       (share_group ? share_group : new ShareGroup(bind_generates_resource));
 
   memset(&reserved_ids_, 0, sizeof(reserved_ids_));
 }
 
 bool GLES2Implementation::Initialize(
     unsigned int starting_transfer_buffer_size,
     unsigned int min_transfer_buffer_size,
-    unsigned int max_transfer_buffer_size) {
+    unsigned int max_transfer_buffer_size,
+    unsigned int mapped_memory_limit) {
   GPU_DCHECK_GE(starting_transfer_buffer_size, min_transfer_buffer_size);
   GPU_DCHECK_LE(starting_transfer_buffer_size, max_transfer_buffer_size);
   GPU_DCHECK_GE(min_transfer_buffer_size, kStartingOffset);
 
   if (!transfer_buffer_->Initialize(
       starting_transfer_buffer_size,
       kStartingOffset,
       min_transfer_buffer_size,
       max_transfer_buffer_size,
       kAlignment,
       kSizeToFlush)) {
     return false;
   }
 
-  mapped_memory_.reset(new MappedMemoryManager(helper_));
-  SetSharedMemoryChunkSizeMultiple(1024 * 1024 * 2);
+  mapped_memory_.reset(new MappedMemoryManager(helper_, mapped_memory_limit));
+  mapped_memory_->set_chunk_size_multiple(2 * 1024 * 1024);
 
   if (!QueryAndCacheStaticState())
     return false;
 
   util_.set_num_compressed_texture_formats(
       static_state_.int_state.num_compressed_texture_formats);
   util_.set_num_shader_binary_formats(
       static_state_.int_state.num_shader_binary_formats);
 
   texture_units_.reset(
@@ skipping 119 matching lines @@
 }
 
 int32 GLES2Implementation::GetResultShmId() {
   return transfer_buffer_->GetShmId();
 }
 
 uint32 GLES2Implementation::GetResultShmOffset() {
   return transfer_buffer_->GetResultOffset();
 }
 
-void GLES2Implementation::SetSharedMemoryChunkSizeMultiple(
-    unsigned int multiple) {
-  mapped_memory_->set_chunk_size_multiple(multiple);
-}
-
 void GLES2Implementation::FreeUnusedSharedMemory() {
   mapped_memory_->FreeUnused();
 }
 
 void GLES2Implementation::FreeEverything() {
   WaitForCmd();
   query_tracker_->Shrink();
   FreeUnusedSharedMemory();
   transfer_buffer_->Free();
   helper_->FreeRingBuffer();
@@ skipping 3515 matching lines @@
   CheckGLError();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/client/gles2_implementation_impl_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu