ui/gl/gl_image_ref_counted_memory.cc

   1 // Copyright 2014 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 "ui/gl/gl_image_ref_counted_memory.h"
   6
   7 #include "base/logging.h"
   8 #include "base/memory/ref_counted_memory.h"
   9
  10 namespace gfx {
  11
  12 GLImageRefCountedMemory::GLImageRefCountedMemory(const gfx::Size& size,
  13                                                  unsigned internalformat)
  14     : GLImageMemory(size, internalformat) {
  15 }
  16
  17 GLImageRefCountedMemory::~GLImageRefCountedMemory() {
  18   DCHECK(!ref_counted_memory_.get());
  19 }
  20
  21 bool GLImageRefCountedMemory::Initialize(
  22     base::RefCountedMemory* ref_counted_memory,
  23     gfx::BufferFormat format) {
  24   if (!GLImageMemory::Initialize(ref_counted_memory->front(), format))
  25     return false;
  26
  27   DCHECK(!ref_counted_memory_.get());
  28   ref_counted_memory_ = ref_counted_memory;
  29   return true;
  30 }
  31
  32 void GLImageRefCountedMemory::Destroy(bool have_context) {
  33   GLImageMemory::Destroy(have_context);
  34   ref_counted_memory_ = NULL;
  35 }
  36
  37 void GLImageRefCountedMemory::OnMemoryDump(
  38     base::trace_event::ProcessMemoryDump* pmd,
  39     uint64_t process_tracing_id,
  40     const std::string& dump_name) {
  41   // Log size 0 if |ref_counted_memory_| has been released.
  42   size_t size_in_bytes = ref_counted_memory_ ? ref_counted_memory_->size() : 0;
  43
  44   base::trace_event::MemoryAllocatorDump* dump =
  45       pmd->CreateAllocatorDump(dump_name);
  46   dump->AddScalar(base::trace_event::MemoryAllocatorDump::kNameSize,
  47                   base::trace_event::MemoryAllocatorDump::kUnitsBytes,
  48                   static_cast<uint64_t>(size_in_bytes));
  49 }
  50
  51 }  // namespace gfx