зеркало из https://github.com/mozilla/gecko-dev.git
76 строки
2.2 KiB
C++
76 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef GFX_LAYERS_BLOBSURFACE_H
|
|
#define GFX_LAYERS_BLOBSURFACE_H
|
|
|
|
#include <stdint.h> // for uint8_t, uint32_t
|
|
#include "mozilla/Attributes.h" // for MOZ_STACK_CLASS
|
|
#include "mozilla/RefPtr.h" // for TemporaryRef
|
|
#include "mozilla/gfx/Point.h" // for IntSize
|
|
#include "mozilla/gfx/Types.h" // for SurfaceFormat
|
|
|
|
class gfxImageSurface;
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
class DataSourceSurface;
|
|
} // namespace gfx
|
|
} // namespace mozilla
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
class ImageDataSerializerBase
|
|
{
|
|
public:
|
|
bool IsValid() const;
|
|
|
|
uint8_t* GetData();
|
|
gfx::IntSize GetSize() const;
|
|
gfx::SurfaceFormat GetFormat() const;
|
|
TemporaryRef<gfx::DataSourceSurface> GetAsSurface();
|
|
TemporaryRef<gfxImageSurface> GetAsThebesSurface();
|
|
|
|
protected:
|
|
ImageDataSerializerBase(uint8_t* aData)
|
|
: mData(aData) {}
|
|
uint8_t* mData;
|
|
};
|
|
|
|
/**
|
|
* A facility to serialize an image into a buffer of memory.
|
|
* This is intended for use with the IPC code, in order to copy image data
|
|
* into shared memory.
|
|
* Note that there is a separate serializer class for YCbCr images
|
|
* (see YCbCrImageDataSerializer.h).
|
|
*/
|
|
class MOZ_STACK_CLASS ImageDataSerializer : public ImageDataSerializerBase
|
|
{
|
|
public:
|
|
ImageDataSerializer(uint8_t* aData) : ImageDataSerializerBase(aData) {}
|
|
void InitializeBufferInfo(gfx::IntSize aSize,
|
|
gfx::SurfaceFormat aFormat);
|
|
static uint32_t ComputeMinBufferSize(gfx::IntSize aSize,
|
|
gfx::SurfaceFormat aFormat);
|
|
};
|
|
|
|
/**
|
|
* A facility to deserialize image data that has been serialized by an
|
|
* ImageDataSerializer.
|
|
*/
|
|
class MOZ_STACK_CLASS ImageDataDeserializer : public ImageDataSerializerBase
|
|
{
|
|
public:
|
|
ImageDataDeserializer(uint8_t* aData) : ImageDataSerializerBase(aData) {}
|
|
};
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|
|
|
|
#endif
|