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Add pixman-xserver-compat.h, (that was supposed to go in a couple of commits ago).

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Carl Worth 2005-01-21 10:52:55 +00:00
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2005-01-21 Carl Worth <cworth@cworth.org>
* src/pixman-xserver-compat.h): Add pixman-xserver-compat.h, (that
was supposed to go in a couple of commits ago).
* src/fbedgeimp.h (rasterizeEdges): Avoid buffer ovverrun when
trapezoid's right edge is on a pixel boundary.

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pixman/src/pixman-xserver-compat.h Normal file
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/*
* Copyright © 2005 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of Red Hat,
* Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Carl Worth, Red Hat, Inc.
*/
#ifndef _PIXMAN_XORG_COMPAT_H_
#define _PIXMAN_XORG_COMPAT_H_
/* This is a compatibility header file, designed to make it easier to
* copy files directly from the xorg server into the implementation of
* libpixman.
*
* The intended usage is that when copying files from the server, the
* only change necessary should be to replace the block of include
* directives with:
*
* #include "pixman-xorg-compat.h"
*/
/* First, include the primary internal header file for libpixman. */
#include "icint.h"
/* Then, define any names that the server code will be expecting in
* terms of libpixman names. */
typedef pixman_bits_t FbBits;
typedef pixman_image_t* PicturePtr;
typedef uint8_t CARD8;
typedef uint16_t CARD16;
typedef int16_t INT16;
typedef pixman_point_fixed_t xPointFixed;
typedef pixman_line_fixed_t xLineFixed;
typedef pixman_trapezoid_t xTrapezoid;
typedef pixman_triangle_t xTriangle;
#define RENDER 1
#define FB_SHIFT IC_SHIFT
#define FB_MASK IC_MASK
#define FB_ALLONES IC_ALLONES
#define FbMaskBits IcMaskBits
/* XXX: We changed some function and field names which makes for some
* ugly hacks... */
#define pDrawable pixels
#define fbGetDrawable(pDrawable, pointer, stride, bpp, xoff, yoff) { \
(buf) = (pDrawable)->data; \
(stride) = ((int) pDrawable->stride) / sizeof (pixman_bits_t); \
(bpp) = (pDrawable)->bpp; \
(xoff) = 0; \
(yoff) = 0; \
}
/* Then, include any header files that have been copied directly
* from xserver. */
#include "renderedge.h"
/* And finally, this one prototype must come after the include of
* renderedge.h, so it can't live alongside the other prototypes in
* the horrible mess that is icint.h.
*/
pixman_private void
fbRasterizeEdges (pixman_bits_t *buf,
int bpp,
int width,
int stride,
RenderEdge *l,
RenderEdge *r,
pixman_fixed16_16_t t,
pixman_fixed16_16_t b);
#endif