aboutsummaryrefslogtreecommitdiffstats
path: root/common/Xregion/Xregion.h
diff options
context:
space:
mode:
Diffstat (limited to 'common/Xregion/Xregion.h')
-rw-r--r--common/Xregion/Xregion.h276
1 files changed, 127 insertions, 149 deletions
diff --git a/common/Xregion/Xregion.h b/common/Xregion/Xregion.h
index 28cfa0ad..a9c977d0 100644
--- a/common/Xregion/Xregion.h
+++ b/common/Xregion/Xregion.h
@@ -1,6 +1,5 @@
-/* $Xorg: Xutil.h,v 1.8 2001/02/09 02:03:39 xorgcvs Exp $ */
-
-/***********************************************************
+/* $Xorg: region.h,v 1.4 2001/02/09 02:03:40 xorgcvs Exp $ */
+/************************************************************************
Copyright 1987, 1998 The Open Group
@@ -45,168 +44,147 @@ 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.
-******************************************************************/
-/* $XFree86: xc/lib/X11/Xutil.h,v 3.4 2001/12/14 19:54:10 dawes Exp $ */
-
-#ifndef _XREGION_H_
-#define _XREGION_H_
-
-/* - Faked defines to fool the X11 region code */
-
-#include <stdlib.h>
-#include <string.h>
-
-#define Bool int
-#define Xmalloc malloc
-#define Xfree free
-#define Xrealloc realloc
-
-#define NeedFunctionPrototypes 1
+************************************************************************/
-/* - Cribbed from Xlib.h */
+#ifndef _X11_XREGION_H_
+#define _X11_XREGION_H_
typedef struct {
- short x, y;
-} XPoint;
+ short x1, x2, y1, y2;
+} Box, BOX, BoxRec, *BoxPtr;
typedef struct {
- short x, y;
- unsigned short width, height;
-} XRectangle;
+ short x, y, width, height;
+}RECTANGLE, RectangleRec, *RectanglePtr;
-/*
- * opaque reference to Region data type
- */
-typedef struct _XRegion *Region;
-
-/* Return values from XRectInRegion() */
-
-#define RectangleOut 0
-#define RectangleIn 1
-#define RectanglePart 2
-
-#ifdef __cplusplus
-extern "C" {
+#define TRUE 1
+#define FALSE 0
+#define MAXSHORT 32767
+#define MINSHORT -MAXSHORT
+#ifndef MAX
+#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif
-
-extern int XClipBox(
-#if NeedFunctionPrototypes
- Region /* r */,
- XRectangle* /* rect_return */
+#ifndef MIN
+#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
-);
-extern Region XCreateRegion(
-#if NeedFunctionPrototypes
- void
-#endif
-);
-
-extern const char *XDefaultString (void);
-
-extern int XDestroyRegion(
-#if NeedFunctionPrototypes
- Region /* r */
-#endif
-);
-
-extern int XEmptyRegion(
-#if NeedFunctionPrototypes
- Region /* r */
-#endif
-);
-
-extern int XEqualRegion(
-#if NeedFunctionPrototypes
- Region /* r1 */,
- Region /* r2 */
-#endif
-);
-
-extern int XIntersectRegion(
-#if NeedFunctionPrototypes
- Region /* sra */,
- Region /* srb */,
- Region /* dr_return */
-#endif
-);
-extern int XOffsetRegion(
-#if NeedFunctionPrototypes
- Region /* r */,
- int /* dx */,
- int /* dy */
-#endif
-);
+/*
+ * clip region
+ */
-extern Bool XPointInRegion(
-#if NeedFunctionPrototypes
- Region /* r */,
- int /* x */,
- int /* y */
-#endif
-);
+typedef struct _XRegion {
+ long size;
+ long numRects;
+ BOX *rects;
+ BOX extents;
+} REGION;
-extern Region XPolygonRegion(
-#if NeedFunctionPrototypes
- XPoint* /* points */,
- int /* n */,
- int /* fill_rule */
-#endif
-);
-
-extern int XRectInRegion(
-#if NeedFunctionPrototypes
- Region /* r */,
- int /* x */,
- int /* y */,
- unsigned int /* width */,
- unsigned int /* height */
-#endif
-);
+/* Xutil.h contains the declaration:
+ * typedef struct _XRegion *Region;
+ */
-extern int XShrinkRegion(
-#if NeedFunctionPrototypes
- Region /* r */,
- int /* dx */,
- int /* dy */
-#endif
-);
+/* 1 if two BOXs overlap.
+ * 0 if two BOXs do not overlap.
+ * Remember, x2 and y2 are not in the region
+ */
+#define EXTENTCHECK(r1, r2) \
+ ((r1)->x2 > (r2)->x1 && \
+ (r1)->x1 < (r2)->x2 && \
+ (r1)->y2 > (r2)->y1 && \
+ (r1)->y1 < (r2)->y2)
-extern int XSubtractRegion(
-#if NeedFunctionPrototypes
- Region /* sra */,
- Region /* srb */,
- Region /* dr_return */
-#endif
-);
+/*
+ * update region extents
+ */
+#define EXTENTS(r,idRect){\
+ if((r)->x1 < (idRect)->extents.x1)\
+ (idRect)->extents.x1 = (r)->x1;\
+ if((r)->y1 < (idRect)->extents.y1)\
+ (idRect)->extents.y1 = (r)->y1;\
+ if((r)->x2 > (idRect)->extents.x2)\
+ (idRect)->extents.x2 = (r)->x2;\
+ if((r)->y2 > (idRect)->extents.y2)\
+ (idRect)->extents.y2 = (r)->y2;\
+ }
-extern int XUnionRectWithRegion(
-#if NeedFunctionPrototypes
- XRectangle* /* rectangle */,
- Region /* src_region */,
- Region /* dest_region_return */
-#endif
-);
+/*
+ * Check to see if there is enough memory in the present region.
+ */
+#define MEMCHECK(reg, rect, firstrect){\
+ if ((reg)->numRects >= ((reg)->size - 1)){\
+ (firstrect) = (BOX *) Xrealloc \
+ ((char *)(firstrect), (unsigned) (2 * (sizeof(BOX)) * ((reg)->size)));\
+ if ((firstrect) == 0)\
+ return(0);\
+ (reg)->size *= 2;\
+ (rect) = &(firstrect)[(reg)->numRects];\
+ }\
+ }
+
+/* this routine checks to see if the previous rectangle is the same
+ * or subsumes the new rectangle to add.
+ */
-extern int XUnionRegion(
-#if NeedFunctionPrototypes
- Region /* sra */,
- Region /* srb */,
- Region /* dr_return */
-#endif
-);
+#define CHECK_PREVIOUS(Reg, R, Rx1, Ry1, Rx2, Ry2)\
+ (!(((Reg)->numRects > 0)&&\
+ ((R-1)->y1 == (Ry1)) &&\
+ ((R-1)->y2 == (Ry2)) &&\
+ ((R-1)->x1 <= (Rx1)) &&\
+ ((R-1)->x2 >= (Rx2))))
+
+/* add a rectangle to the given Region */
+#define ADDRECT(reg, r, rx1, ry1, rx2, ry2){\
+ if (((rx1) < (rx2)) && ((ry1) < (ry2)) &&\
+ CHECK_PREVIOUS((reg), (r), (rx1), (ry1), (rx2), (ry2))){\
+ (r)->x1 = (rx1);\
+ (r)->y1 = (ry1);\
+ (r)->x2 = (rx2);\
+ (r)->y2 = (ry2);\
+ EXTENTS((r), (reg));\
+ (reg)->numRects++;\
+ (r)++;\
+ }\
+ }
+
+
+
+/* add a rectangle to the given Region */
+#define ADDRECTNOX(reg, r, rx1, ry1, rx2, ry2){\
+ if ((rx1 < rx2) && (ry1 < ry2) &&\
+ CHECK_PREVIOUS((reg), (r), (rx1), (ry1), (rx2), (ry2))){\
+ (r)->x1 = (rx1);\
+ (r)->y1 = (ry1);\
+ (r)->x2 = (rx2);\
+ (r)->y2 = (ry2);\
+ (reg)->numRects++;\
+ (r)++;\
+ }\
+ }
+
+#define EMPTY_REGION(pReg) pReg->numRects = 0
+
+#define REGION_NOT_EMPTY(pReg) pReg->numRects
+
+#define INBOX(r, x, y) \
+ ( ( ((r).x2 > x)) && \
+ ( ((r).x1 <= x)) && \
+ ( ((r).y2 > y)) && \
+ ( ((r).y1 <= y)) )
-extern int XXorRegion(
-#if NeedFunctionPrototypes
- Region /* sra */,
- Region /* srb */,
- Region /* dr_return */
-#endif
-);
+/*
+ * number of points to buffer before sending them off
+ * to scanlines() : Must be an even number
+ */
+#define NUMPTSTOBUFFER 200
-#ifdef __cplusplus
-};
-#endif
+/*
+ * used to allocate buffers for points and link
+ * the buffers together
+ */
+typedef struct _POINTBLOCK {
+ XPoint pts[NUMPTSTOBUFFER];
+ struct _POINTBLOCK *next;
+} POINTBLOCK;
-#endif /* _XUTIL_H_ */
+#endif /* _X11_XREGION_H_ */
generated by cgit v1.2.3 (git 2.39.1) at 2025-02-09 18:34:57 +0000