| 1 | /*
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| 2 | * Replacement functions to protect the alpha channel
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| 3 | */
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| 4 | /*
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| 5 | * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved.
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| 6 | *
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| 7 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 8 | * copy of this software and associated documentation files (the "Software"),
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| 9 | * to deal in the Software without restriction, including without limitation
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| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 11 | * and/or sell copies of the Software, and to permit persons to whom the
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| 12 | * Software is furnished to do so, subject to the following conditions:
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| 13 | *
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| 14 | * The above copyright notice and this permission notice shall be included in
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| 15 | * all copies or substantial portions of the Software.
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| 16 | *
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 20 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 21 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 22 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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| 23 | * DEALINGS IN THE SOFTWARE.
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| 24 | *
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| 25 | * Except as contained in this notice, the name(s) of the above copyright
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| 26 | * holders shall not be used in advertising or otherwise to promote the sale,
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| 27 | * use or other dealings in this Software without prior written authorization.
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| 28 | */
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| 29 |
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| 30 | #ifndef _SAFEALPHA_H
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| 31 | #define _SAFEALPHA_H
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| 32 |
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| 33 | #include "picturestr.h"
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| 34 |
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| 35 | #ifdef RENDER
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| 36 | void
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| 37 | SafeAlphaComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
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| 38 | INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask,
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| 39 | INT16 xDst, INT16 yDst, CARD16 width, CARD16 height);
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| 40 | #endif /* RENDER */
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| 41 |
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| 42 | #endif /* _SAFEALPHA_H */
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