xserver git update 11/6/2010

1 files changed, 173 insertions, 172 deletions

diff --git a/xorg-server/mi/miline.h b/xorg-server/mi/miline.h
index b5f706dbf..0f2fc3374 100644
--- a/xorg-server/mi/miline.h
+++ b/xorg-server/mi/miline.h
@@ -1,172 +1,173 @@
-
-/*
-
-Copyright 1994, 1998  The Open Group
-
-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.
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
-OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from The Open Group.
-
-*/
-
-#ifndef MILINE_H
-
-#include "screenint.h"
-#include "privates.h"
-
-/*
- * Public definitions used for configuring basic pixelization aspects
- * of the sample implementation line-drawing routines provided in
- * {mfb,mi,cfb*} at run-time.
- */
-
-#define XDECREASING	4
-#define YDECREASING	2
-#define YMAJOR		1
-
-#define OCTANT1		(1 << (YDECREASING))
-#define OCTANT2		(1 << (YDECREASING|YMAJOR))
-#define OCTANT3		(1 << (XDECREASING|YDECREASING|YMAJOR))
-#define OCTANT4		(1 << (XDECREASING|YDECREASING))
-#define OCTANT5		(1 << (XDECREASING))
-#define OCTANT6		(1 << (XDECREASING|YMAJOR))
-#define OCTANT7		(1 << (YMAJOR))
-#define OCTANT8		(1 << (0))
-
-#define XMAJOROCTANTS		(OCTANT1 | OCTANT4 | OCTANT5 | OCTANT8)
-
-#define DEFAULTZEROLINEBIAS	(OCTANT2 | OCTANT3 | OCTANT4 | OCTANT5)
-
-/*
- * Devices can configure the rendering of routines in mi, mfb, and cfb*
- * by specifying a thin line bias to be applied to a particular screen
- * using the following function.  The bias parameter is an OR'ing of
- * the appropriate OCTANT constants defined above to indicate which
- * octants to bias a line to prefer an axial step when the Bresenham
- * error term is exactly zero.  The octants are mapped as follows:
- *
- *   \    |    /
- *    \ 3 | 2 /
- *     \  |  /
- *    4 \ | / 1
- *       \|/
- *   -----------
- *       /|\
- *    5 / | \ 8
- *     /  |  \
- *    / 6 | 7 \
- *   /    |    \
- *
- * For more information, see "Ambiguities in Incremental Line Rastering,"
- * Jack E. Bresenham, IEEE CG&A, May 1987.
- */
-
-extern _X_EXPORT void miSetZeroLineBias(
-    ScreenPtr /* pScreen */,
-    unsigned int /* bias */
-);
-
-/*
- * Private definitions needed for drawing thin (zero width) lines
- * Used by the mi, mfb, and all cfb* components.
- */
-
-#define X_AXIS	0
-#define Y_AXIS	1
-
-#define OUT_LEFT  0x08
-#define OUT_RIGHT 0x04
-#define OUT_ABOVE 0x02
-#define OUT_BELOW 0x01
-
-#define OUTCODES(_result, _x, _y, _pbox) \
-    if	    ( (_x) <  (_pbox)->x1) (_result) |= OUT_LEFT; \
-    else if ( (_x) >= (_pbox)->x2) (_result) |= OUT_RIGHT; \
-    if	    ( (_y) <  (_pbox)->y1) (_result) |= OUT_ABOVE; \
-    else if ( (_y) >= (_pbox)->y2) (_result) |= OUT_BELOW;
-
-#define MIOUTCODES(outcode, x, y, xmin, ymin, xmax, ymax) \
-{\
-     if (x < xmin) outcode |= OUT_LEFT;\
-     if (x > xmax) outcode |= OUT_RIGHT;\
-     if (y < ymin) outcode |= OUT_ABOVE;\
-     if (y > ymax) outcode |= OUT_BELOW;\
-}
-  
-#define SWAPINT(i, j) \
-{  int _t = i;  i = j;  j = _t; }
-
-#define SWAPPT(i, j) \
-{  DDXPointRec _t; _t = i;  i = j; j = _t; }
-
-#define SWAPINT_PAIR(x1, y1, x2, y2)\
-{   int t = x1;  x1 = x2;  x2 = t;\
-        t = y1;  y1 = y2;  y2 = t;\
-}
-
-#define miGetZeroLineBias(_pScreen) ((unsigned long) (unsigned long*)\
-    dixLookupPrivate(&(_pScreen)->devPrivates, miZeroLineScreenKey))
-
-#define CalcLineDeltas(_x1,_y1,_x2,_y2,_adx,_ady,_sx,_sy,_SX,_SY,_octant) \
-    (_octant) = 0;				\
-    (_sx) = (_SX);				\
-    if (((_adx) = (_x2) - (_x1)) < 0) {		\
-	(_adx) = -(_adx);			\
-	(_sx = -(_sx));				\
-	(_octant) |= XDECREASING;		\
-    }						\
-    (_sy) = (_SY);				\
-    if (((_ady) = (_y2) - (_y1)) < 0) {		\
-	(_ady) = -(_ady);			\
-	(_sy = -(_sy));				\
-	(_octant) |= YDECREASING;		\
-    }
-
-#define SetYMajorOctant(_octant)	((_octant) |= YMAJOR)
-
-#define FIXUP_ERROR(_e, _octant, _bias) \
-    (_e) -= (((_bias) >> (_octant)) & 1)
-
-#define IsXMajorOctant(_octant)		(!((_octant) & YMAJOR))
-#define IsYMajorOctant(_octant)		((_octant) & YMAJOR)
-#define IsXDecreasingOctant(_octant)	((_octant) & XDECREASING)
-#define IsYDecreasingOctant(_octant)	((_octant) & YDECREASING)
-
-extern _X_EXPORT DevPrivateKey miZeroLineScreenKey;
-
-extern _X_EXPORT int miZeroClipLine(
-    int /*xmin*/,
-    int /*ymin*/,
-    int /*xmax*/,
-    int /*ymax*/,
-    int * /*new_x1*/,
-    int * /*new_y1*/,
-    int * /*new_x2*/,
-    int * /*new_y2*/,
-    unsigned int /*adx*/,
-    unsigned int /*ady*/,
-    int * /*pt1_clipped*/,
-    int * /*pt2_clipped*/,
-    int /*octant*/,
-    unsigned int /*bias*/,
-    int /*oc1*/,
-    int /*oc2*/
-);
-
-#endif /* MILINE_H */
+

+/*

+

+Copyright 1994, 1998  The Open Group

+

+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.

+

+The above copyright notice and this permission notice shall be included in

+all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE

+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

+

+Except as contained in this notice, the name of The Open Group shall not be

+used in advertising or otherwise to promote the sale, use or other dealings

+in this Software without prior written authorization from The Open Group.

+

+*/

+

+#ifndef MILINE_H

+

+#include "screenint.h"

+#include "privates.h"

+

+/*

+ * Public definitions used for configuring basic pixelization aspects

+ * of the sample implementation line-drawing routines provided in

+ * {mfb,mi,cfb*} at run-time.

+ */

+

+#define XDECREASING	4

+#define YDECREASING	2

+#define YMAJOR		1

+

+#define OCTANT1		(1 << (YDECREASING))

+#define OCTANT2		(1 << (YDECREASING|YMAJOR))

+#define OCTANT3		(1 << (XDECREASING|YDECREASING|YMAJOR))

+#define OCTANT4		(1 << (XDECREASING|YDECREASING))

+#define OCTANT5		(1 << (XDECREASING))

+#define OCTANT6		(1 << (XDECREASING|YMAJOR))

+#define OCTANT7		(1 << (YMAJOR))

+#define OCTANT8		(1 << (0))

+

+#define XMAJOROCTANTS		(OCTANT1 | OCTANT4 | OCTANT5 | OCTANT8)

+

+#define DEFAULTZEROLINEBIAS	(OCTANT2 | OCTANT3 | OCTANT4 | OCTANT5)

+

+/*

+ * Devices can configure the rendering of routines in mi, mfb, and cfb*

+ * by specifying a thin line bias to be applied to a particular screen

+ * using the following function.  The bias parameter is an OR'ing of

+ * the appropriate OCTANT constants defined above to indicate which

+ * octants to bias a line to prefer an axial step when the Bresenham

+ * error term is exactly zero.  The octants are mapped as follows:

+ *

+ *   \    |    /

+ *    \ 3 | 2 /

+ *     \  |  /

+ *    4 \ | / 1

+ *       \|/

+ *   -----------

+ *       /|\

+ *    5 / | \ 8

+ *     /  |  \

+ *    / 6 | 7 \

+ *   /    |    \

+ *

+ * For more information, see "Ambiguities in Incremental Line Rastering,"

+ * Jack E. Bresenham, IEEE CG&A, May 1987.

+ */

+

+extern _X_EXPORT void miSetZeroLineBias(

+    ScreenPtr /* pScreen */,

+    unsigned int /* bias */

+);

+

+/*

+ * Private definitions needed for drawing thin (zero width) lines

+ * Used by the mi, mfb, and all cfb* components.

+ */

+

+#define X_AXIS	0

+#define Y_AXIS	1

+

+#define OUT_LEFT  0x08

+#define OUT_RIGHT 0x04

+#define OUT_ABOVE 0x02

+#define OUT_BELOW 0x01

+

+#define OUTCODES(_result, _x, _y, _pbox) \

+    if	    ( (_x) <  (_pbox)->x1) (_result) |= OUT_LEFT; \

+    else if ( (_x) >= (_pbox)->x2) (_result) |= OUT_RIGHT; \

+    if	    ( (_y) <  (_pbox)->y1) (_result) |= OUT_ABOVE; \

+    else if ( (_y) >= (_pbox)->y2) (_result) |= OUT_BELOW;

+

+#define MIOUTCODES(outcode, x, y, xmin, ymin, xmax, ymax) \

+{\

+     if (x < xmin) outcode |= OUT_LEFT;\

+     if (x > xmax) outcode |= OUT_RIGHT;\

+     if (y < ymin) outcode |= OUT_ABOVE;\

+     if (y > ymax) outcode |= OUT_BELOW;\

+}

+  

+#define SWAPINT(i, j) \

+{  int _t = i;  i = j;  j = _t; }

+

+#define SWAPPT(i, j) \

+{  DDXPointRec _t; _t = i;  i = j; j = _t; }

+

+#define SWAPINT_PAIR(x1, y1, x2, y2)\

+{   int t = x1;  x1 = x2;  x2 = t;\

+        t = y1;  y1 = y2;  y2 = t;\

+}

+

+#define miGetZeroLineBias(_pScreen) ((unsigned long) (unsigned long*)\

+    dixLookupPrivate(&(_pScreen)->devPrivates, miZeroLineScreenKey))

+

+#define CalcLineDeltas(_x1,_y1,_x2,_y2,_adx,_ady,_sx,_sy,_SX,_SY,_octant) \

+    (_octant) = 0;				\

+    (_sx) = (_SX);				\

+    if (((_adx) = (_x2) - (_x1)) < 0) {		\

+	(_adx) = -(_adx);			\

+	(_sx = -(_sx));				\

+	(_octant) |= XDECREASING;		\

+    }						\

+    (_sy) = (_SY);				\

+    if (((_ady) = (_y2) - (_y1)) < 0) {		\

+	(_ady) = -(_ady);			\

+	(_sy = -(_sy));				\

+	(_octant) |= YDECREASING;		\

+    }

+

+#define SetYMajorOctant(_octant)	((_octant) |= YMAJOR)

+

+#define FIXUP_ERROR(_e, _octant, _bias) \

+    (_e) -= (((_bias) >> (_octant)) & 1)

+

+#define IsXMajorOctant(_octant)		(!((_octant) & YMAJOR))

+#define IsYMajorOctant(_octant)		((_octant) & YMAJOR)

+#define IsXDecreasingOctant(_octant)	((_octant) & XDECREASING)

+#define IsYDecreasingOctant(_octant)	((_octant) & YDECREASING)

+

+extern _X_EXPORT DevPrivateKeyRec miZeroLineScreenKeyRec;

+#define miZeroLineScreenKey (&miZeroLineScreenKeyRec)

+

+extern _X_EXPORT int miZeroClipLine(

+    int /*xmin*/,

+    int /*ymin*/,

+    int /*xmax*/,

+    int /*ymax*/,

+    int * /*new_x1*/,

+    int * /*new_y1*/,

+    int * /*new_x2*/,

+    int * /*new_y2*/,

+    unsigned int /*adx*/,

+    unsigned int /*ady*/,

+    int * /*pt1_clipped*/,

+    int * /*pt2_clipped*/,

+    int /*octant*/,

+    unsigned int /*bias*/,

+    int /*oc1*/,

+    int /*oc2*/

+);

+

+#endif /* MILINE_H */