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47 lines
1.0 KiB
C++
47 lines
1.0 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "sky/viewer/cc/web_external_bitmap_impl.h"
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#include "base/memory/shared_memory.h"
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namespace sky_viewer_cc {
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namespace {
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SharedMemoryAllocationFunction g_memory_allocator;
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} // namespace
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void SetSharedMemoryAllocationFunction(
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SharedMemoryAllocationFunction allocator) {
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g_memory_allocator = allocator;
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}
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WebExternalBitmapImpl::WebExternalBitmapImpl() {
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}
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WebExternalBitmapImpl::~WebExternalBitmapImpl() {
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}
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void WebExternalBitmapImpl::setSize(blink::WebSize size) {
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if (size != size_) {
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size_t byte_size = size.width * size.height * 4;
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shared_memory_ = g_memory_allocator(byte_size);
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if (shared_memory_)
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shared_memory_->Map(byte_size);
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size_ = size;
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}
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}
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blink::WebSize WebExternalBitmapImpl::size() {
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return size_;
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}
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uint8* WebExternalBitmapImpl::pixels() {
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return static_cast<uint8*>(shared_memory_->memory());
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}
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} // namespace sky_viewer_cc
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