/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
/* 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 ImageToI420Converter_h
#define ImageToI420Converter_h
#include "mozilla/AlreadyAddRefed.h"
#include "nsError.h"
#include "mozilla/gfx/Point.h"
namespace mozilla {
namespace gfx {
class SourceSurface;
enum class SurfaceFormat : int8_t;
}
// namespace gfx
namespace layers {
class Image;
}
// namespace layers
/**
* Gets a SourceSurface from given image.
*/
already_AddRefed<gfx::SourceSurface> GetSourceSurface(layers::Image* aImage);
/**
* Converts aImage to an I420 image and writes it to the given buffers.
*/
nsresult ConvertToI420(layers::Image* aImage, uint8_t* aDestY,
int aDestStrideY,
uint8_t* aDestU,
int aDestStrideU, uint8_t* aDestV,
int aDestStrideV);
/**
* Converts aImage to an NV12 image and writes it to the given buffers.
*/
nsresult ConvertToNV12(layers::Image* aImage, uint8_t* aDestY,
int aDestStrideY,
uint8_t* aDestUV,
int aDestStrideUV,
gfx::IntSize aDestSize);
/**
* Converts aImage into an RGBA image in a specified format and writes it to the
* given buffer.
*/
nsresult ConvertToRGBA(layers::Image* aImage,
const gfx::SurfaceFormat& aDestFormat,
uint8_t* aDestBuffer,
int aDestStride);
/*
* Convert the RGBA image data from SRGB color into DisplayP3 color.
* aSrcBuffer and aDestBuffer can be the same.
*/
nsresult ConvertSRGBBufferToDisplayP3(uint8_t* aSrcBuffer,
const gfx::SurfaceFormat& aSrcFormat,
uint8_t* aDestBuffer,
int aWidth,
int aHeight);
}
// namespace mozilla
#endif /* ImageToI420Converter_h */
