blob: ed7836c197d43e5a68fb9a8496caf0fbd71742a5 [file] [log] [blame]
// Copyright 2013 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 "content/common/gpu/client/gpu_memory_buffer_impl_io_surface.h"
#include "base/logging.h"
namespace content {
GpuMemoryBufferImplIOSurface::GpuMemoryBufferImplIOSurface(
gfx::GpuMemoryBufferId id,
const gfx::Size& size,
Format format,
const DestructionCallback& callback,
IOSurfaceRef io_surface)
: GpuMemoryBufferImpl(id, size, format, callback), io_surface_(io_surface) {
}
GpuMemoryBufferImplIOSurface::~GpuMemoryBufferImplIOSurface() {
}
// static
scoped_ptr<GpuMemoryBufferImpl> GpuMemoryBufferImplIOSurface::CreateFromHandle(
const gfx::GpuMemoryBufferHandle& handle,
const gfx::Size& size,
Format format,
const DestructionCallback& callback) {
base::ScopedCFTypeRef<IOSurfaceRef> io_surface(
IOSurfaceLookup(handle.io_surface_id));
if (!io_surface)
return scoped_ptr<GpuMemoryBufferImpl>();
return make_scoped_ptr<GpuMemoryBufferImpl>(new GpuMemoryBufferImplIOSurface(
handle.id, size, format, callback, io_surface.release()));
}
bool GpuMemoryBufferImplIOSurface::Map(void** data) {
DCHECK(!mapped_);
IOSurfaceLock(io_surface_, 0, NULL);
mapped_ = true;
*data = IOSurfaceGetBaseAddress(io_surface_);
return true;
}
void GpuMemoryBufferImplIOSurface::Unmap() {
DCHECK(mapped_);
IOSurfaceUnlock(io_surface_, 0, NULL);
mapped_ = false;
}
void GpuMemoryBufferImplIOSurface::GetStride(int* stride) const {
*stride = IOSurfaceGetBytesPerRow(io_surface_);
}
gfx::GpuMemoryBufferHandle GpuMemoryBufferImplIOSurface::GetHandle() const {
gfx::GpuMemoryBufferHandle handle;
handle.type = gfx::IO_SURFACE_BUFFER;
handle.id = id_;
handle.io_surface_id = IOSurfaceGetID(io_surface_);
return handle;
}
} // namespace content