зеркало из https://github.com/mozilla/gecko-dev.git
52 строки
1.8 KiB
C++
52 строки
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _MOZILLA_GFX_DATASURFACEHELPERS_H
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#define _MOZILLA_GFX_DATASURFACEHELPERS_H
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#include "2D.h"
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namespace mozilla {
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namespace gfx {
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void
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ConvertBGRXToBGRA(uint8_t* aData, const IntSize &aSize, int32_t aStride);
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/**
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* Copy the pixel data from aSrc and pack it into aDst. aSrcSize, aSrcStride
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* and aBytesPerPixel give the size, stride and bytes per pixel for aSrc's
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* surface. Callers are responsible for making sure that aDst is big enough to
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* contain |aSrcSize.width * aSrcSize.height * aBytesPerPixel| bytes.
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*/
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void
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CopySurfaceDataToPackedArray(uint8_t* aSrc, uint8_t* aDst, IntSize aSrcSize,
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int32_t aSrcStride, int32_t aBytesPerPixel);
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/**
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* Convert aSurface to a packed buffer in BGRA format. The pixel data is
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* returned in a buffer allocated with new uint8_t[]. The caller then has
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* ownership of the buffer and is responsible for delete[]'ing it.
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*/
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uint8_t*
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SurfaceToPackedBGRA(DataSourceSurface *aSurface);
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/**
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* Convert aSurface to a packed buffer in BGR format. The pixel data is
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* returned in a buffer allocated with new uint8_t[]. The caller then has
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* ownership of the buffer and is responsible for delete[]'ing it.
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*
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* This function is currently only intended for use with surfaces of format
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* SurfaceFormat::B8G8R8X8 since the X components of the pixel data (if any)
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* are simply dropped (no attempt is made to un-pre-multiply alpha from the
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* color components).
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*/
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uint8_t*
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SurfaceToPackedBGR(DataSourceSurface *aSurface);
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}
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}
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#endif // _MOZILLA_GFX_DATASURFACEHELPERS_H
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