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-rw-r--r--xorg-server/hw/xfree86/xaa/xaaFillPoly.c1924
1 files changed, 962 insertions, 962 deletions
diff --git a/xorg-server/hw/xfree86/xaa/xaaFillPoly.c b/xorg-server/hw/xfree86/xaa/xaaFillPoly.c
index 6f11e35ff..b8347b336 100644
--- a/xorg-server/hw/xfree86/xaa/xaaFillPoly.c
+++ b/xorg-server/hw/xfree86/xaa/xaaFillPoly.c
@@ -1,962 +1,962 @@
-
-/*
- * Copyright 1996 The XFree86 Project
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * 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
- * HARM HANEMAAYER 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.
- *
- */
-
-/*
- * Written by Mark Vojkovich. Loosly based on an original version
- * written by Harm Hanemaayer (H.Hanemaayer@inter.nl.net) which
- * only did solid rectangles and didn't have trapezoid support.
- *
- */
-
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include "misc.h"
-#include "xf86.h"
-#include "xf86_OSproc.h"
-
-#include <X11/X.h>
-#include "scrnintstr.h"
-#include "pixmapstr.h"
-#include "xf86str.h"
-#include "mi.h"
-#include "micoord.h"
-
-#include "xaa.h"
-#include "xaalocal.h"
-
-#define POLY_USE_MI 0
-#define POLY_FULLY_CLIPPED 1
-#define POLY_IS_EASY 2
-
-
-#define Setup(c,x,vertex,dx,dy,e,sign,step,DX) {\
- x = intToX(vertex); \
- if ((dy = intToY(c) - y)) { \
- DX = dx = intToX(c) - x; \
- step = 0; \
- if (dx >= 0) \
- { \
- e = 0; \
- sign = 1; \
- if (dx >= dy) {\
- step = dx / dy; \
- dx %= dy; \
- } \
- } \
- else \
- { \
- e = 1 - dy; \
- sign = -1; \
- dx = -dx; \
- if (dx >= dy) { \
- step = - (dx / dy); \
- dx %= dy; \
- } \
- } \
- } \
- x += origin; \
- vertex = c; \
-}
-
-#define Step(x,dx,dy,e,sign,step) {\
- x += step; \
- if ((e += dx) > 0) \
- { \
- x += sign; \
- e -= dy; \
- } \
-}
-
-#define FixError(x, dx, dy, e, sign, step, h) { \
- e += (h) * dx; \
- x += (h) * step; \
- if(e > 0) { \
- x += e * sign/dy; \
- e %= dy; \
- if(e) { \
- x += sign; \
- e -= dy; \
- } \
- } \
-}
-
-
-/*
- XAAIsEasyPoly -
-
- Checks CoordModeOrigin one rect polygons to see if we need
- to use Mi.
- Returns: POLY_USE_MI, POLY_FULLY_CLIPPED or POLY_IS_EASY
- as well as the pointer to the "top" point and the y
- extents.
-*/
-
-int
-XAAIsEasyPolygon(
- DDXPointPtr ptsIn,
- int count,
- BoxPtr extents,
- int origin,
- DDXPointPtr *topPoint, /* return */
- int *topY, int *bottomY, /* return */
- int shape
-){
- int c = 0, vertex1, vertex2;
-
- *topY = 32767;
- *bottomY = 0;
-
- origin -= (origin & 0x8000) << 1;
- vertex1 = extents->x1 - origin;
- vertex2 = extents->x2 - origin /* - 0x00010001 */;
- /* I think this was an error in cfb ^ */
-
- if (shape == Convex) {
- while (count--) {
- c = *((int*)ptsIn);
- if (((c - vertex1) | (vertex2 - c)) & 0x80008000)
- return POLY_USE_MI;
-
- c = intToY(c);
- if (c < *topY) {
- *topY = c;
- *topPoint = ptsIn;
- }
- ptsIn++;
- if (c > *bottomY) *bottomY = c;
- }
- } else {
- int yFlip = 0;
- int dx2, dx1, x1, x2;
-
- x2 = x1 = -1;
- dx2 = dx1 = 1;
-
- while (count--) {
- c = *((int*)ptsIn);
- if (((c - vertex1) | (vertex2 - c)) & 0x80008000)
- return POLY_USE_MI;
- c = intToY(c);
- if (c < *topY) {
- *topY = c;
- *topPoint = ptsIn;
- }
- ptsIn++;
- if (c > *bottomY) *bottomY = c;
- if (c == x1)
- continue;
- if (dx1 > 0) {
- if (x2 < 0) x2 = c;
- else dx2 = dx1 = (c - x1) >> 31;
- } else if ((c - x1) >> 31 != dx1) {
- dx1 = ~dx1;
- yFlip++;
- }
- x1 = c;
- }
- x1 = (x2 - c) >> 31;
- if (x1 != dx1) yFlip++;
- if (x1 != dx2) yFlip++;
- if (yFlip != 2) {
- if(*topY == *bottomY)
- return POLY_FULLY_CLIPPED;
- else
- return POLY_USE_MI;
- }
- }
- if (*topY == *bottomY)
- return POLY_FULLY_CLIPPED;
-
- return POLY_IS_EASY;
-}
-
-void
-XAAFillPolygonSolid(
- DrawablePtr pDraw,
- GCPtr pGC,
- int shape,
- int mode,
- int count,
- DDXPointPtr ptsIn
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
- int origin, vertex1, vertex2;
- int *vertex1p, *vertex2p, *endp;
- int x1 = 0, x2 = 0;
- int dx1 = 0, dx2 = 0, dy1 = 0, dy2 = 0;
- int DX1 = 0, DX2 = 0, e1 = 0, e2 = 0;
- int step1 = 0, step2 = 0, sign1 = 0, sign2 = 0;
- int c, y, maxy, h, yoffset;
- DDXPointPtr topPoint;
-
- if(!REGION_NUM_RECTS(pGC->pCompositeClip))
- return;
-
- if (mode == CoordModePrevious) {
- register DDXPointPtr ppt = ptsIn + 1;
-
- for (origin = 1; origin < count; origin++, ppt++) {
- ppt->x += (ppt-1)->x;
- ppt->y += (ppt-1)->y;
- }
- mode = CoordModeOrigin;
- }
-
- if (REGION_NUM_RECTS(pGC->pCompositeClip) != 1) {
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
- origin = coordToInt(pDraw->x, pDraw->y);
-
- switch( XAAIsEasyPolygon(ptsIn, count, &pGC->pCompositeClip->extents,
- origin, &topPoint, &y, &maxy, shape) ) {
- case POLY_USE_MI:
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- case POLY_FULLY_CLIPPED:
- return;
- }
-
- endp = (int*)ptsIn + count;
- vertex2p = vertex1p = (int *)topPoint;
- origin = pDraw->x;
- yoffset = pDraw->y;
- vertex2 = vertex1 = *vertex2p++;
- if (vertex2p == endp)
- vertex2p = (int *) ptsIn;
-
- (*infoRec->SetupForSolidFill)(infoRec->pScrn, pGC->fgPixel, pGC->alu,
- pGC->planemask);
-
- while(1) {
- if (y == intToY(vertex1)) {
- do {
- if (vertex1p == (int *) ptsIn)
- vertex1p = endp;
- c = *--vertex1p;
- Setup (c,x1,vertex1,dx1,dy1,e1,sign1,step1,DX1)
- } while (y >= intToY(vertex1));
- h = dy1;
- } else {
- Step(x1,dx1,dy1,e1,sign1,step1)
- h = intToY(vertex1) - y;
- }
- if (y == intToY(vertex2)) {
- do {
- c = *vertex2p++;
- if (vertex2p == endp)
- vertex2p = (int *) ptsIn;
- Setup (c,x2,vertex2,dx2,dy2,e2,sign2,step2,DX2)
- } while (y >= intToY(vertex2));
- if (dy2 < h)
- h = dy2;
- } else {
- Step(x2,dx2,dy2,e2,sign2,step2)
- if ((c = (intToY(vertex2) - y)) < h)
- h = c;
- }
-
- /* fill spans for this segment */
- if(DX1 | DX2) {
- if(infoRec->SubsequentSolidFillTrap && (h > 6)) {
- if(x1 == x2) {
- while(x1 == x2) {
- y++;
- if (!--h) break;
- Step(x1,dx1,dy1,e1,sign1,step1)
- Step(x2,dx2,dy2,e2,sign2,step2)
- }
- if(y == maxy) break;
- if(!h) continue;
- }
-
- if(x1 < x2)
- (*infoRec->SubsequentSolidFillTrap)(infoRec->pScrn,
- y + yoffset, h,
- x1, DX1, dy1, e1,
- x2 - 1, DX2, dy2, e2);
- else
- (*infoRec->SubsequentSolidFillTrap)(infoRec->pScrn,
- y + yoffset, h,
- x2, DX2, dy2, e2,
- x1 - 1, DX1, dy1, e1);
- y += h;
- if(--h) {
- FixError(x1,dx1,dy1,e1,sign1,step1,h);
- FixError(x2,dx2,dy2,e2,sign2,step2,h);
- h = 0;
- }
- } else {
- while(1) {
- if (x2 > x1)
- (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
- x1, y + yoffset, x2 - x1, 1);
- else if (x1 > x2)
- (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
- x2, y + yoffset, x1 - x2, 1);
- y++;
- if (!--h) break;
- Step(x1,dx1,dy1,e1,sign1,step1)
- Step(x2,dx2,dy2,e2,sign2,step2)
- }
- }
- } else {
- if (x2 > x1)
- (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
- x1, y + yoffset, x2 - x1, h);
- else if (x1 > x2)
- (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
- x2, y + yoffset, x1 - x2, h);
-
- y += h;
- h = 0;
- }
- if (y == maxy) break;
- }
- SET_SYNC_FLAG(infoRec);
-}
-
-
-
-
-void
-XAAFillPolygonHelper(
- ScrnInfoPtr pScrn,
- DDXPointPtr ptsIn,
- int count,
- DDXPointPtr topPoint,
- int y,
- int maxy,
- int origin,
- RectFuncPtr RectFunc,
- TrapFuncPtr TrapFunc,
- int xorg,
- int yorg,
- XAACacheInfoPtr pCache
-){
- int *vertex1p, *vertex2p, *endp;
- int vertex1, vertex2;
- int x1 = 0, x2 = 0;
- int dx1 = 0, dx2 = 0, dy1 = 0, dy2 = 0;
- int DX1 = 0, DX2 = 0, e1 = 0, e2 = 0;
- int step1 = 0, step2 = 0, sign1 = 0, sign2 = 0;
- int c, h, yoffset;
-
-
- endp = (int*)ptsIn + count;
- vertex2p = vertex1p = (int *)topPoint;
- yoffset = intToY(origin);
- origin = intToX(origin);
- vertex2 = vertex1 = *vertex2p++;
- if (vertex2p == endp)
- vertex2p = (int *)ptsIn;
-
- while(1) {
- if (y == intToY(vertex1)) {
- do {
- if (vertex1p == (int *) ptsIn)
- vertex1p = endp;
- c = *--vertex1p;
- Setup (c,x1,vertex1,dx1,dy1,e1,sign1,step1,DX1)
- } while (y >= intToY(vertex1));
- h = dy1;
- } else {
- Step(x1,dx1,dy1,e1,sign1,step1)
- h = intToY(vertex1) - y;
- }
- if (y == intToY(vertex2)) {
- do {
- c = *vertex2p++;
- if (vertex2p == endp)
- vertex2p = (int *) ptsIn;
- Setup (c,x2,vertex2,dx2,dy2,e2,sign2,step2,DX2)
- } while (y >= intToY(vertex2));
- if (dy2 < h)
- h = dy2;
- } else {
- Step(x2,dx2,dy2,e2,sign2,step2)
- if ((c = (intToY(vertex2) - y)) < h)
- h = c;
- }
-
- /* fill spans for this segment */
- if(DX1 | DX2) {
- if(TrapFunc && (h > 6)) {
- if(x1 == x2) {
- while(x1 == x2) {
- y++;
- if (!--h) break;
- Step(x1,dx1,dy1,e1,sign1,step1)
- Step(x2,dx2,dy2,e2,sign2,step2)
- }
- if(y == maxy) break;
- if(!h) continue;
- }
-
- if(x1 < x2)
- (*TrapFunc)(pScrn, y + yoffset, h,
- x1, DX1, dy1, e1,
- x2 - 1, DX2, dy2, e2, xorg, yorg, pCache);
- else
- (*TrapFunc)(pScrn, y + yoffset, h,
- x2, DX2, dy2, e2,
- x1 - 1, DX1, dy1, e1, xorg, yorg, pCache);
- y += h;
- if(--h) {
- FixError(x1,dx1,dy1,e1,sign1,step1,h);
- FixError(x2,dx2,dy2,e2,sign2,step2,h);
- h = 0;
- }
- } else {
- while(1) {
- if (x2 > x1)
- (*RectFunc)(pScrn,
- x1, y + yoffset, x2 - x1, 1, xorg, yorg, pCache);
- else if (x1 > x2)
- (*RectFunc)(pScrn,
- x2, y + yoffset, x1 - x2, 1, xorg, yorg, pCache);
- y++;
- if (!--h) break;
- Step(x1,dx1,dy1,e1,sign1,step1)
- Step(x2,dx2,dy2,e2,sign2,step2)
- }
- }
- } else {
- if (x2 > x1)
- (*RectFunc)(pScrn,
- x1, y + yoffset, x2 - x1, h, xorg, yorg, pCache);
- else if (x1 > x2)
- (*RectFunc)(pScrn,
- x2, y + yoffset, x1 - x2, h, xorg, yorg, pCache);
-
- y += h;
- h = 0;
- }
- if (y == maxy) break;
- }
-}
-
- /*****************\
- | Solid Helpers |
- \*****************/
-
-static void
-SolidTrapHelper(
- ScrnInfoPtr pScrn,
- int y, int h,
- int x1, int dx1, int dy1, int e1,
- int x2, int dx2, int dy2, int e2,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
-
- (*infoRec->SubsequentSolidFillTrap) (pScrn,
- y, h, x1, dx1, dy1, e1, x2, dx2, dy2, e2);
-}
-
-static void
-SolidRectHelper (
- ScrnInfoPtr pScrn,
- int x, int y, int w, int h,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
-
- (*infoRec->SubsequentSolidFillRect) (pScrn, x, y, w, h);
-}
-
-
- /*********************\
- | Mono 8x8 Patterns |
- \*********************/
-
-static void
-Mono8x8PatternTrapHelper_ScreenOrigin(
- ScrnInfoPtr pScrn,
- int y, int h,
- int x1, int dx1, int dy1, int e1,
- int x2, int dx2, int dy2, int e2,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
-
- (*infoRec->SubsequentMono8x8PatternFillTrap) (pScrn, xorg, yorg,
- y, h, x1, dx1, dy1, e1, x2, dx2, dy2, e2);
-}
-
-static void
-Mono8x8PatternRectHelper_ScreenOrigin (
- ScrnInfoPtr pScrn,
- int x, int y, int w, int h,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
-
- (*infoRec->SubsequentMono8x8PatternFillRect) (pScrn, xorg, yorg,
- x, y, w, h);
-}
-
-static void
-Mono8x8PatternRectHelper (
- ScrnInfoPtr pScrn,
- int x, int y, int w, int h,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
-
- xorg = (x - xorg) & 0x07;
- yorg = (y - yorg) & 0x07;
-
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
- if(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_BITS) {
- int patx = pCache->pat0;
- int paty = pCache->pat1;
- XAARotateMonoPattern(&patx, &paty, xorg, yorg,
- (infoRec->Mono8x8PatternFillFlags &
- BIT_ORDER_IN_BYTE_MSBFIRST));
- xorg = patx; yorg = paty;
- } else {
- int slot = (yorg << 3) + xorg;
- xorg = pCache->x + pCache->offsets[slot].x;
- yorg = pCache->y + pCache->offsets[slot].y;
- }
- }
-
-
- (*infoRec->SubsequentMono8x8PatternFillRect) (pScrn, xorg, yorg,
- x, y, w, h);
-}
-
-
-
- /****************\
- | Cache Expand |
- \****************/
-
-
-static void
-CacheExpandRectHelper (
- ScrnInfoPtr pScrn,
- int X, int Y, int Width, int Height,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
- int x, phaseY, phaseX, skipleft, w, blit_w, blit_h;
- int cacheWidth;
-
- cacheWidth = (pCache->w * pScrn->bitsPerPixel) /
- infoRec->CacheColorExpandDensity;
-
- phaseY = (Y - yorg) % pCache->orig_h;
- if(phaseY < 0) phaseY += pCache->orig_h;
- phaseX = (X - xorg) % pCache->orig_w;
- if(phaseX < 0) phaseX += pCache->orig_w;
-
- while(1) {
- w = Width; skipleft = phaseX; x = X;
- blit_h = pCache->h - phaseY;
- if(blit_h > Height) blit_h = Height;
-
- while(1) {
- blit_w = cacheWidth - skipleft;
- if(blit_w > w) blit_w = w;
- (*infoRec->SubsequentScreenToScreenColorExpandFill)(
- pScrn, x, Y, blit_w, blit_h,
- pCache->x, pCache->y + phaseY, skipleft);
- w -= blit_w;
- if(!w) break;
- x += blit_w;
- skipleft = (skipleft + blit_w) % pCache->orig_w;
- }
- Height -= blit_h;
- if(!Height) break;
- Y += blit_h;
- phaseY = (phaseY + blit_h) % pCache->orig_h;
- }
-}
-
-
-
- /**************\
- | Cache Blit |
- \**************/
-
-
-static void
-CacheBltRectHelper (
- ScrnInfoPtr pScrn,
- int X, int Y, int Width, int Height,
- int xorg, int yorg,
- XAACacheInfoPtr pCache
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
- int x, phaseY, phaseX, skipleft, w, blit_w, blit_h;
-
- phaseY = (Y - yorg) % pCache->orig_h;
- if(phaseY < 0) phaseY += pCache->orig_h;
- phaseX = (X - xorg) % pCache->orig_w;
- if(phaseX < 0) phaseX += pCache->orig_w;
-
- while(1) {
- w = Width; skipleft = phaseX; x = X;
- blit_h = pCache->h - phaseY;
- if(blit_h > Height) blit_h = Height;
-
- while(1) {
- blit_w = pCache->w - skipleft;
- if(blit_w > w) blit_w = w;
- (*infoRec->SubsequentScreenToScreenCopy)(pScrn,
- pCache->x + skipleft, pCache->y + phaseY,
- x, Y, blit_w, blit_h);
- w -= blit_w;
- if(!w) break;
- x += blit_w;
- skipleft = (skipleft + blit_w) % pCache->orig_w;
- }
- Height -= blit_h;
- if(!Height) break;
- Y += blit_h;
- phaseY = (phaseY + blit_h) % pCache->orig_h;
- }
-}
-
-
- /**********************\
- | Stippled Polygons |
- \**********************/
-
-
-void
-XAAFillPolygonStippled(
- DrawablePtr pDraw,
- GCPtr pGC,
- int shape,
- int mode,
- int count,
- DDXPointPtr ptsIn
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
- XAAPixmapPtr pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->stipple);
- int origin, type, patx, paty, fg, bg;
- int y, maxy, xorg, yorg;
- DDXPointPtr topPoint;
- XAACacheInfoPtr pCache = NULL;
- RectFuncPtr RectFunc = NULL;
- TrapFuncPtr TrapFunc = NULL;
-
- if(!REGION_NUM_RECTS(pGC->pCompositeClip))
- return;
-
- if (mode == CoordModePrevious) {
- register DDXPointPtr ppt = ptsIn + 1;
-
- for (origin = 1; origin < count; origin++, ppt++) {
- ppt->x += (ppt-1)->x;
- ppt->y += (ppt-1)->y;
- }
- mode = CoordModeOrigin;
- }
-
- if (REGION_NUM_RECTS(pGC->pCompositeClip) != 1) {
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
-
- if(pGC->fillStyle == FillStippled) {
- type = (*infoRec->StippledFillChooser)(pGC);
- fg = pGC->fgPixel; bg = -1;
- } else {
- type = (*infoRec->OpaqueStippledFillChooser)(pGC);
- fg = pGC->fgPixel; bg = pGC->bgPixel;
- }
-
-
- if(!type) {
- (*XAAFallbackOps.FillPolygon)(pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
- if((type == DO_COLOR_EXPAND) || (type == DO_COLOR_8x8)) {
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
- origin = pDraw->x;
-
- switch( XAAIsEasyPolygon(ptsIn, count, &pGC->pCompositeClip->extents,
- origin, &topPoint, &y, &maxy, shape) ) {
- case POLY_USE_MI:
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- case POLY_FULLY_CLIPPED:
- return;
- }
-
- xorg = (pDraw->x + pGC->patOrg.x);
- yorg = (pDraw->y + pGC->patOrg.y);
-
-
- if((fg == bg) && (bg != -1) && infoRec->SetupForSolidFill) {
-
- (*infoRec->SetupForSolidFill)(infoRec->pScrn, fg,
- pGC->alu, pGC->planemask);
-
- RectFunc = SolidRectHelper;
- TrapFunc = infoRec->SubsequentSolidFillTrap ? SolidTrapHelper : NULL;
- } else
- switch(type) {
- case DO_MONO_8x8:
- patx = pPriv->pattern0; paty = pPriv->pattern1;
- if(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_SCREEN_ORIGIN) {
- xorg = (-xorg) & 0x07; yorg = (-yorg) & 0x07;
- if(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_BITS) {
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_ORIGIN)) {
- XAARotateMonoPattern(&patx, &paty, xorg, yorg,
- (infoRec->Mono8x8PatternFillFlags &
- BIT_ORDER_IN_BYTE_MSBFIRST));
- xorg = patx; yorg = paty;
- }
- } else {
- XAACacheInfoPtr pCache = (*infoRec->CacheMono8x8Pattern)(
- infoRec->pScrn, patx, paty);
- patx = pCache->x; paty = pCache->y;
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
- int slot = (yorg << 3) + xorg;
- patx += pCache->offsets[slot].x;
- paty += pCache->offsets[slot].y;
- xorg = patx; yorg = paty;
- }
- }
- RectFunc = Mono8x8PatternRectHelper_ScreenOrigin;
- if(infoRec->SubsequentMono8x8PatternFillTrap)
- TrapFunc = Mono8x8PatternTrapHelper_ScreenOrigin;
- } else { /* !HARDWARE_PATTERN_SCREEN_ORIGIN */
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_BITS)){
- pCache = (*infoRec->CacheMono8x8Pattern)(
- infoRec->pScrn, patx, paty);
- patx = pCache->x; paty = pCache->y;
- } else {
- pCache = &(infoRec->ScratchCacheInfoRec);
- pCache->pat0 = patx;
- pCache->pat1 = paty;
- }
- RectFunc = Mono8x8PatternRectHelper;
- }
-
- (*infoRec->SetupForMono8x8PatternFill)(infoRec->pScrn,
- patx, paty, fg, bg, pGC->alu, pGC->planemask);
- break;
- case DO_CACHE_EXPAND:
- pCache = (*infoRec->CacheMonoStipple)(infoRec->pScrn, pGC->stipple);
-
- (*infoRec->SetupForScreenToScreenColorExpandFill)(
- infoRec->pScrn, fg, bg, pGC->alu, pGC->planemask);
-
- RectFunc = CacheExpandRectHelper;
- break;
- case DO_CACHE_BLT:
- pCache = (*infoRec->CacheStipple)(infoRec->pScrn, pGC->stipple,
- fg, bg);
- (*infoRec->SetupForScreenToScreenCopy)(infoRec->pScrn, 1, 1,
- pGC->alu, pGC->planemask, pCache->trans_color);
-
- RectFunc = CacheBltRectHelper;
- break;
- default:
- return;
- }
-
-
- XAAFillPolygonHelper(infoRec->pScrn, ptsIn, count, topPoint,
- y, maxy, origin, RectFunc, TrapFunc, xorg, yorg, pCache);
-
- SET_SYNC_FLAG(infoRec);
-}
-
-
-
-
- /*******************\
- | Tiled Polygons |
- \*******************/
-
-
-void
-XAAFillPolygonTiled(
- DrawablePtr pDraw,
- GCPtr pGC,
- int shape,
- int mode,
- int count,
- DDXPointPtr ptsIn
-){
- XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
- XAAPixmapPtr pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->tile.pixmap);
- int origin, type, patx, paty;
- int y, maxy, xorg, yorg;
- DDXPointPtr topPoint;
- XAACacheInfoPtr pCache = NULL;
- RectFuncPtr RectFunc = NULL;
- TrapFuncPtr TrapFunc = NULL;
-
- if(!REGION_NUM_RECTS(pGC->pCompositeClip))
- return;
-
- if (mode == CoordModePrevious) {
- register DDXPointPtr ppt = ptsIn + 1;
-
- for (origin = 1; origin < count; origin++, ppt++) {
- ppt->x += (ppt-1)->x;
- ppt->y += (ppt-1)->y;
- }
- mode = CoordModeOrigin;
- }
-
- if (REGION_NUM_RECTS(pGC->pCompositeClip) != 1) {
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
-
- type = (*infoRec->TiledFillChooser)(pGC);
-
- if(!type || (type == DO_IMAGE_WRITE)) {
- (*XAAFallbackOps.FillPolygon)(pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
- if(type == DO_COLOR_8x8) {
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- return;
- }
-
- origin = pDraw->x;
-
- switch( XAAIsEasyPolygon(ptsIn, count, &pGC->pCompositeClip->extents,
- origin, &topPoint, &y, &maxy, shape) ) {
- case POLY_USE_MI:
- miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
- case POLY_FULLY_CLIPPED:
- return;
- }
-
- xorg = (pDraw->x + pGC->patOrg.x);
- yorg = (pDraw->y + pGC->patOrg.y);
-
- switch(type) {
- case DO_MONO_8x8:
- patx = pPriv->pattern0; paty = pPriv->pattern1;
- if(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_SCREEN_ORIGIN) {
- xorg = (-xorg) & 0x07; yorg = (-yorg) & 0x07;
- if(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_BITS) {
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_ORIGIN)) {
- XAARotateMonoPattern(&patx, &paty, xorg, yorg,
- (infoRec->Mono8x8PatternFillFlags &
- BIT_ORDER_IN_BYTE_MSBFIRST));
- xorg = patx; yorg = paty;
- }
- } else {
- XAACacheInfoPtr pCache = (*infoRec->CacheMono8x8Pattern)(
- infoRec->pScrn, patx, paty);
- patx = pCache->x; paty = pCache->y;
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
- int slot = (yorg << 3) + xorg;
- patx += pCache->offsets[slot].x;
- paty += pCache->offsets[slot].y;
- xorg = patx; yorg = paty;
- }
- }
- RectFunc = Mono8x8PatternRectHelper_ScreenOrigin;
- if(infoRec->SubsequentMono8x8PatternFillTrap)
- TrapFunc = Mono8x8PatternTrapHelper_ScreenOrigin;
- } else { /* !HARDWARE_PATTERN_SCREEN_ORIGIN */
- if(!(infoRec->Mono8x8PatternFillFlags &
- HARDWARE_PATTERN_PROGRAMMED_BITS)){
- pCache = (*infoRec->CacheMono8x8Pattern)(
- infoRec->pScrn, patx, paty);
- patx = pCache->x; paty = pCache->y;
- }
- else {
- pCache = &(infoRec->ScratchCacheInfoRec);
- pCache->pat0 = patx;
- pCache->pat1 = paty;
- }
- RectFunc = Mono8x8PatternRectHelper;
- }
-
- (*infoRec->SetupForMono8x8PatternFill)(infoRec->pScrn,
- patx, paty, pPriv->fg, pPriv->bg, pGC->alu, pGC->planemask);
- break;
- case DO_CACHE_BLT:
- pCache = (*infoRec->CacheTile)(infoRec->pScrn, pGC->tile.pixmap);
- (*infoRec->SetupForScreenToScreenCopy)(infoRec->pScrn, 1, 1,
- pGC->alu, pGC->planemask, -1);
-
- RectFunc = CacheBltRectHelper;
- break;
- case DO_PIXMAP_COPY:
- pCache = &(infoRec->ScratchCacheInfoRec);
- pCache->x = pPriv->offscreenArea->box.x1;
- pCache->y = pPriv->offscreenArea->box.y1;
- pCache->w = pCache->orig_w =
- pPriv->offscreenArea->box.x2 - pCache->x;
- pCache->h = pCache->orig_h =
- pPriv->offscreenArea->box.y2 - pCache->y;
-
- (*infoRec->SetupForScreenToScreenCopy)(infoRec->pScrn, 1, 1,
- pGC->alu, pGC->planemask, -1);
-
- RectFunc = CacheBltRectHelper;
- break;
- default:
- return;
- }
-
- XAAFillPolygonHelper(infoRec->pScrn, ptsIn, count, topPoint,
- y, maxy, origin, RectFunc, TrapFunc, xorg, yorg, pCache);
-
- SET_SYNC_FLAG(infoRec);
-}
-
-
+
+/*
+ * Copyright 1996 The XFree86 Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * 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
+ * HARM HANEMAAYER 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.
+ *
+ */
+
+/*
+ * Written by Mark Vojkovich. Loosly based on an original version
+ * written by Harm Hanemaayer (H.Hanemaayer@inter.nl.net) which
+ * only did solid rectangles and didn't have trapezoid support.
+ *
+ */
+
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "misc.h"
+#include "xf86.h"
+#include "xf86_OSproc.h"
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "xf86str.h"
+#include "mi.h"
+#include "micoord.h"
+
+#include "xaa.h"
+#include "xaalocal.h"
+
+#define POLY_USE_MI 0
+#define POLY_FULLY_CLIPPED 1
+#define POLY_IS_EASY 2
+
+
+#define Setup(c,x,vertex,dx,dy,e,sign,step,DX) {\
+ x = intToX(vertex); \
+ if ((dy = intToY(c) - y)) { \
+ DX = dx = intToX(c) - x; \
+ step = 0; \
+ if (dx >= 0) \
+ { \
+ e = 0; \
+ sign = 1; \
+ if (dx >= dy) {\
+ step = dx / dy; \
+ dx %= dy; \
+ } \
+ } \
+ else \
+ { \
+ e = 1 - dy; \
+ sign = -1; \
+ dx = -dx; \
+ if (dx >= dy) { \
+ step = - (dx / dy); \
+ dx %= dy; \
+ } \
+ } \
+ } \
+ x += origin; \
+ vertex = c; \
+}
+
+#define Step(x,dx,dy,e,sign,step) {\
+ x += step; \
+ if ((e += dx) > 0) \
+ { \
+ x += sign; \
+ e -= dy; \
+ } \
+}
+
+#define FixError(x, dx, dy, e, sign, step, h) { \
+ e += (h) * dx; \
+ x += (h) * step; \
+ if(e > 0) { \
+ x += e * sign/dy; \
+ e %= dy; \
+ if(e) { \
+ x += sign; \
+ e -= dy; \
+ } \
+ } \
+}
+
+
+/*
+ XAAIsEasyPoly -
+
+ Checks CoordModeOrigin one rect polygons to see if we need
+ to use Mi.
+ Returns: POLY_USE_MI, POLY_FULLY_CLIPPED or POLY_IS_EASY
+ as well as the pointer to the "top" point and the y
+ extents.
+*/
+
+int
+XAAIsEasyPolygon(
+ DDXPointPtr ptsIn,
+ int count,
+ BoxPtr extents,
+ int origin,
+ DDXPointPtr *topPoint, /* return */
+ int *topY, int *bottomY, /* return */
+ int shape
+){
+ int c = 0, vertex1, vertex2;
+
+ *topY = 32767;
+ *bottomY = 0;
+
+ origin -= (origin & 0x8000) << 1;
+ vertex1 = extents->x1 - origin;
+ vertex2 = extents->x2 - origin /* - 0x00010001 */;
+ /* I think this was an error in cfb ^ */
+
+ if (shape == Convex) {
+ while (count--) {
+ c = *((int*)ptsIn);
+ if (((c - vertex1) | (vertex2 - c)) & 0x80008000)
+ return POLY_USE_MI;
+
+ c = intToY(c);
+ if (c < *topY) {
+ *topY = c;
+ *topPoint = ptsIn;
+ }
+ ptsIn++;
+ if (c > *bottomY) *bottomY = c;
+ }
+ } else {
+ int yFlip = 0;
+ int dx2, dx1, x1, x2;
+
+ x2 = x1 = -1;
+ dx2 = dx1 = 1;
+
+ while (count--) {
+ c = *((int*)ptsIn);
+ if (((c - vertex1) | (vertex2 - c)) & 0x80008000)
+ return POLY_USE_MI;
+ c = intToY(c);
+ if (c < *topY) {
+ *topY = c;
+ *topPoint = ptsIn;
+ }
+ ptsIn++;
+ if (c > *bottomY) *bottomY = c;
+ if (c == x1)
+ continue;
+ if (dx1 > 0) {
+ if (x2 < 0) x2 = c;
+ else dx2 = dx1 = (c - x1) >> 31;
+ } else if ((c - x1) >> 31 != dx1) {
+ dx1 = ~dx1;
+ yFlip++;
+ }
+ x1 = c;
+ }
+ x1 = (x2 - c) >> 31;
+ if (x1 != dx1) yFlip++;
+ if (x1 != dx2) yFlip++;
+ if (yFlip != 2) {
+ if(*topY == *bottomY)
+ return POLY_FULLY_CLIPPED;
+ else
+ return POLY_USE_MI;
+ }
+ }
+ if (*topY == *bottomY)
+ return POLY_FULLY_CLIPPED;
+
+ return POLY_IS_EASY;
+}
+
+void
+XAAFillPolygonSolid(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int shape,
+ int mode,
+ int count,
+ DDXPointPtr ptsIn
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ int origin, vertex1, vertex2;
+ int *vertex1p, *vertex2p, *endp;
+ int x1 = 0, x2 = 0;
+ int dx1 = 0, dx2 = 0, dy1 = 0, dy2 = 0;
+ int DX1 = 0, DX2 = 0, e1 = 0, e2 = 0;
+ int step1 = 0, step2 = 0, sign1 = 0, sign2 = 0;
+ int c, y, maxy, h, yoffset;
+ DDXPointPtr topPoint;
+
+ if(!RegionNumRects(pGC->pCompositeClip))
+ return;
+
+ if (mode == CoordModePrevious) {
+ register DDXPointPtr ppt = ptsIn + 1;
+
+ for (origin = 1; origin < count; origin++, ppt++) {
+ ppt->x += (ppt-1)->x;
+ ppt->y += (ppt-1)->y;
+ }
+ mode = CoordModeOrigin;
+ }
+
+ if (RegionNumRects(pGC->pCompositeClip) != 1) {
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+ origin = coordToInt(pDraw->x, pDraw->y);
+
+ switch( XAAIsEasyPolygon(ptsIn, count, &pGC->pCompositeClip->extents,
+ origin, &topPoint, &y, &maxy, shape) ) {
+ case POLY_USE_MI:
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ case POLY_FULLY_CLIPPED:
+ return;
+ }
+
+ endp = (int*)ptsIn + count;
+ vertex2p = vertex1p = (int *)topPoint;
+ origin = pDraw->x;
+ yoffset = pDraw->y;
+ vertex2 = vertex1 = *vertex2p++;
+ if (vertex2p == endp)
+ vertex2p = (int *) ptsIn;
+
+ (*infoRec->SetupForSolidFill)(infoRec->pScrn, pGC->fgPixel, pGC->alu,
+ pGC->planemask);
+
+ while(1) {
+ if (y == intToY(vertex1)) {
+ do {
+ if (vertex1p == (int *) ptsIn)
+ vertex1p = endp;
+ c = *--vertex1p;
+ Setup (c,x1,vertex1,dx1,dy1,e1,sign1,step1,DX1)
+ } while (y >= intToY(vertex1));
+ h = dy1;
+ } else {
+ Step(x1,dx1,dy1,e1,sign1,step1)
+ h = intToY(vertex1) - y;
+ }
+ if (y == intToY(vertex2)) {
+ do {
+ c = *vertex2p++;
+ if (vertex2p == endp)
+ vertex2p = (int *) ptsIn;
+ Setup (c,x2,vertex2,dx2,dy2,e2,sign2,step2,DX2)
+ } while (y >= intToY(vertex2));
+ if (dy2 < h)
+ h = dy2;
+ } else {
+ Step(x2,dx2,dy2,e2,sign2,step2)
+ if ((c = (intToY(vertex2) - y)) < h)
+ h = c;
+ }
+
+ /* fill spans for this segment */
+ if(DX1 | DX2) {
+ if(infoRec->SubsequentSolidFillTrap && (h > 6)) {
+ if(x1 == x2) {
+ while(x1 == x2) {
+ y++;
+ if (!--h) break;
+ Step(x1,dx1,dy1,e1,sign1,step1)
+ Step(x2,dx2,dy2,e2,sign2,step2)
+ }
+ if(y == maxy) break;
+ if(!h) continue;
+ }
+
+ if(x1 < x2)
+ (*infoRec->SubsequentSolidFillTrap)(infoRec->pScrn,
+ y + yoffset, h,
+ x1, DX1, dy1, e1,
+ x2 - 1, DX2, dy2, e2);
+ else
+ (*infoRec->SubsequentSolidFillTrap)(infoRec->pScrn,
+ y + yoffset, h,
+ x2, DX2, dy2, e2,
+ x1 - 1, DX1, dy1, e1);
+ y += h;
+ if(--h) {
+ FixError(x1,dx1,dy1,e1,sign1,step1,h);
+ FixError(x2,dx2,dy2,e2,sign2,step2,h);
+ h = 0;
+ }
+ } else {
+ while(1) {
+ if (x2 > x1)
+ (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
+ x1, y + yoffset, x2 - x1, 1);
+ else if (x1 > x2)
+ (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
+ x2, y + yoffset, x1 - x2, 1);
+ y++;
+ if (!--h) break;
+ Step(x1,dx1,dy1,e1,sign1,step1)
+ Step(x2,dx2,dy2,e2,sign2,step2)
+ }
+ }
+ } else {
+ if (x2 > x1)
+ (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
+ x1, y + yoffset, x2 - x1, h);
+ else if (x1 > x2)
+ (*infoRec->SubsequentSolidFillRect)(infoRec->pScrn,
+ x2, y + yoffset, x1 - x2, h);
+
+ y += h;
+ h = 0;
+ }
+ if (y == maxy) break;
+ }
+ SET_SYNC_FLAG(infoRec);
+}
+
+
+
+
+void
+XAAFillPolygonHelper(
+ ScrnInfoPtr pScrn,
+ DDXPointPtr ptsIn,
+ int count,
+ DDXPointPtr topPoint,
+ int y,
+ int maxy,
+ int origin,
+ RectFuncPtr RectFunc,
+ TrapFuncPtr TrapFunc,
+ int xorg,
+ int yorg,
+ XAACacheInfoPtr pCache
+){
+ int *vertex1p, *vertex2p, *endp;
+ int vertex1, vertex2;
+ int x1 = 0, x2 = 0;
+ int dx1 = 0, dx2 = 0, dy1 = 0, dy2 = 0;
+ int DX1 = 0, DX2 = 0, e1 = 0, e2 = 0;
+ int step1 = 0, step2 = 0, sign1 = 0, sign2 = 0;
+ int c, h, yoffset;
+
+
+ endp = (int*)ptsIn + count;
+ vertex2p = vertex1p = (int *)topPoint;
+ yoffset = intToY(origin);
+ origin = intToX(origin);
+ vertex2 = vertex1 = *vertex2p++;
+ if (vertex2p == endp)
+ vertex2p = (int *)ptsIn;
+
+ while(1) {
+ if (y == intToY(vertex1)) {
+ do {
+ if (vertex1p == (int *) ptsIn)
+ vertex1p = endp;
+ c = *--vertex1p;
+ Setup (c,x1,vertex1,dx1,dy1,e1,sign1,step1,DX1)
+ } while (y >= intToY(vertex1));
+ h = dy1;
+ } else {
+ Step(x1,dx1,dy1,e1,sign1,step1)
+ h = intToY(vertex1) - y;
+ }
+ if (y == intToY(vertex2)) {
+ do {
+ c = *vertex2p++;
+ if (vertex2p == endp)
+ vertex2p = (int *) ptsIn;
+ Setup (c,x2,vertex2,dx2,dy2,e2,sign2,step2,DX2)
+ } while (y >= intToY(vertex2));
+ if (dy2 < h)
+ h = dy2;
+ } else {
+ Step(x2,dx2,dy2,e2,sign2,step2)
+ if ((c = (intToY(vertex2) - y)) < h)
+ h = c;
+ }
+
+ /* fill spans for this segment */
+ if(DX1 | DX2) {
+ if(TrapFunc && (h > 6)) {
+ if(x1 == x2) {
+ while(x1 == x2) {
+ y++;
+ if (!--h) break;
+ Step(x1,dx1,dy1,e1,sign1,step1)
+ Step(x2,dx2,dy2,e2,sign2,step2)
+ }
+ if(y == maxy) break;
+ if(!h) continue;
+ }
+
+ if(x1 < x2)
+ (*TrapFunc)(pScrn, y + yoffset, h,
+ x1, DX1, dy1, e1,
+ x2 - 1, DX2, dy2, e2, xorg, yorg, pCache);
+ else
+ (*TrapFunc)(pScrn, y + yoffset, h,
+ x2, DX2, dy2, e2,
+ x1 - 1, DX1, dy1, e1, xorg, yorg, pCache);
+ y += h;
+ if(--h) {
+ FixError(x1,dx1,dy1,e1,sign1,step1,h);
+ FixError(x2,dx2,dy2,e2,sign2,step2,h);
+ h = 0;
+ }
+ } else {
+ while(1) {
+ if (x2 > x1)
+ (*RectFunc)(pScrn,
+ x1, y + yoffset, x2 - x1, 1, xorg, yorg, pCache);
+ else if (x1 > x2)
+ (*RectFunc)(pScrn,
+ x2, y + yoffset, x1 - x2, 1, xorg, yorg, pCache);
+ y++;
+ if (!--h) break;
+ Step(x1,dx1,dy1,e1,sign1,step1)
+ Step(x2,dx2,dy2,e2,sign2,step2)
+ }
+ }
+ } else {
+ if (x2 > x1)
+ (*RectFunc)(pScrn,
+ x1, y + yoffset, x2 - x1, h, xorg, yorg, pCache);
+ else if (x1 > x2)
+ (*RectFunc)(pScrn,
+ x2, y + yoffset, x1 - x2, h, xorg, yorg, pCache);
+
+ y += h;
+ h = 0;
+ }
+ if (y == maxy) break;
+ }
+}
+
+ /*****************\
+ | Solid Helpers |
+ \*****************/
+
+static void
+SolidTrapHelper(
+ ScrnInfoPtr pScrn,
+ int y, int h,
+ int x1, int dx1, int dy1, int e1,
+ int x2, int dx2, int dy2, int e2,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+
+ (*infoRec->SubsequentSolidFillTrap) (pScrn,
+ y, h, x1, dx1, dy1, e1, x2, dx2, dy2, e2);
+}
+
+static void
+SolidRectHelper (
+ ScrnInfoPtr pScrn,
+ int x, int y, int w, int h,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+
+ (*infoRec->SubsequentSolidFillRect) (pScrn, x, y, w, h);
+}
+
+
+ /*********************\
+ | Mono 8x8 Patterns |
+ \*********************/
+
+static void
+Mono8x8PatternTrapHelper_ScreenOrigin(
+ ScrnInfoPtr pScrn,
+ int y, int h,
+ int x1, int dx1, int dy1, int e1,
+ int x2, int dx2, int dy2, int e2,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+
+ (*infoRec->SubsequentMono8x8PatternFillTrap) (pScrn, xorg, yorg,
+ y, h, x1, dx1, dy1, e1, x2, dx2, dy2, e2);
+}
+
+static void
+Mono8x8PatternRectHelper_ScreenOrigin (
+ ScrnInfoPtr pScrn,
+ int x, int y, int w, int h,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+
+ (*infoRec->SubsequentMono8x8PatternFillRect) (pScrn, xorg, yorg,
+ x, y, w, h);
+}
+
+static void
+Mono8x8PatternRectHelper (
+ ScrnInfoPtr pScrn,
+ int x, int y, int w, int h,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+
+ xorg = (x - xorg) & 0x07;
+ yorg = (y - yorg) & 0x07;
+
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
+ if(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_BITS) {
+ int patx = pCache->pat0;
+ int paty = pCache->pat1;
+ XAARotateMonoPattern(&patx, &paty, xorg, yorg,
+ (infoRec->Mono8x8PatternFillFlags &
+ BIT_ORDER_IN_BYTE_MSBFIRST));
+ xorg = patx; yorg = paty;
+ } else {
+ int slot = (yorg << 3) + xorg;
+ xorg = pCache->x + pCache->offsets[slot].x;
+ yorg = pCache->y + pCache->offsets[slot].y;
+ }
+ }
+
+
+ (*infoRec->SubsequentMono8x8PatternFillRect) (pScrn, xorg, yorg,
+ x, y, w, h);
+}
+
+
+
+ /****************\
+ | Cache Expand |
+ \****************/
+
+
+static void
+CacheExpandRectHelper (
+ ScrnInfoPtr pScrn,
+ int X, int Y, int Width, int Height,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+ int x, phaseY, phaseX, skipleft, w, blit_w, blit_h;
+ int cacheWidth;
+
+ cacheWidth = (pCache->w * pScrn->bitsPerPixel) /
+ infoRec->CacheColorExpandDensity;
+
+ phaseY = (Y - yorg) % pCache->orig_h;
+ if(phaseY < 0) phaseY += pCache->orig_h;
+ phaseX = (X - xorg) % pCache->orig_w;
+ if(phaseX < 0) phaseX += pCache->orig_w;
+
+ while(1) {
+ w = Width; skipleft = phaseX; x = X;
+ blit_h = pCache->h - phaseY;
+ if(blit_h > Height) blit_h = Height;
+
+ while(1) {
+ blit_w = cacheWidth - skipleft;
+ if(blit_w > w) blit_w = w;
+ (*infoRec->SubsequentScreenToScreenColorExpandFill)(
+ pScrn, x, Y, blit_w, blit_h,
+ pCache->x, pCache->y + phaseY, skipleft);
+ w -= blit_w;
+ if(!w) break;
+ x += blit_w;
+ skipleft = (skipleft + blit_w) % pCache->orig_w;
+ }
+ Height -= blit_h;
+ if(!Height) break;
+ Y += blit_h;
+ phaseY = (phaseY + blit_h) % pCache->orig_h;
+ }
+}
+
+
+
+ /**************\
+ | Cache Blit |
+ \**************/
+
+
+static void
+CacheBltRectHelper (
+ ScrnInfoPtr pScrn,
+ int X, int Y, int Width, int Height,
+ int xorg, int yorg,
+ XAACacheInfoPtr pCache
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+ int x, phaseY, phaseX, skipleft, w, blit_w, blit_h;
+
+ phaseY = (Y - yorg) % pCache->orig_h;
+ if(phaseY < 0) phaseY += pCache->orig_h;
+ phaseX = (X - xorg) % pCache->orig_w;
+ if(phaseX < 0) phaseX += pCache->orig_w;
+
+ while(1) {
+ w = Width; skipleft = phaseX; x = X;
+ blit_h = pCache->h - phaseY;
+ if(blit_h > Height) blit_h = Height;
+
+ while(1) {
+ blit_w = pCache->w - skipleft;
+ if(blit_w > w) blit_w = w;
+ (*infoRec->SubsequentScreenToScreenCopy)(pScrn,
+ pCache->x + skipleft, pCache->y + phaseY,
+ x, Y, blit_w, blit_h);
+ w -= blit_w;
+ if(!w) break;
+ x += blit_w;
+ skipleft = (skipleft + blit_w) % pCache->orig_w;
+ }
+ Height -= blit_h;
+ if(!Height) break;
+ Y += blit_h;
+ phaseY = (phaseY + blit_h) % pCache->orig_h;
+ }
+}
+
+
+ /**********************\
+ | Stippled Polygons |
+ \**********************/
+
+
+void
+XAAFillPolygonStippled(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int shape,
+ int mode,
+ int count,
+ DDXPointPtr ptsIn
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ XAAPixmapPtr pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->stipple);
+ int origin, type, patx, paty, fg, bg;
+ int y, maxy, xorg, yorg;
+ DDXPointPtr topPoint;
+ XAACacheInfoPtr pCache = NULL;
+ RectFuncPtr RectFunc = NULL;
+ TrapFuncPtr TrapFunc = NULL;
+
+ if(!RegionNumRects(pGC->pCompositeClip))
+ return;
+
+ if (mode == CoordModePrevious) {
+ register DDXPointPtr ppt = ptsIn + 1;
+
+ for (origin = 1; origin < count; origin++, ppt++) {
+ ppt->x += (ppt-1)->x;
+ ppt->y += (ppt-1)->y;
+ }
+ mode = CoordModeOrigin;
+ }
+
+ if (RegionNumRects(pGC->pCompositeClip) != 1) {
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+
+ if(pGC->fillStyle == FillStippled) {
+ type = (*infoRec->StippledFillChooser)(pGC);
+ fg = pGC->fgPixel; bg = -1;
+ } else {
+ type = (*infoRec->OpaqueStippledFillChooser)(pGC);
+ fg = pGC->fgPixel; bg = pGC->bgPixel;
+ }
+
+
+ if(!type) {
+ (*XAAFallbackOps.FillPolygon)(pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+ if((type == DO_COLOR_EXPAND) || (type == DO_COLOR_8x8)) {
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+ origin = pDraw->x;
+
+ switch( XAAIsEasyPolygon(ptsIn, count, &pGC->pCompositeClip->extents,
+ origin, &topPoint, &y, &maxy, shape) ) {
+ case POLY_USE_MI:
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ case POLY_FULLY_CLIPPED:
+ return;
+ }
+
+ xorg = (pDraw->x + pGC->patOrg.x);
+ yorg = (pDraw->y + pGC->patOrg.y);
+
+
+ if((fg == bg) && (bg != -1) && infoRec->SetupForSolidFill) {
+
+ (*infoRec->SetupForSolidFill)(infoRec->pScrn, fg,
+ pGC->alu, pGC->planemask);
+
+ RectFunc = SolidRectHelper;
+ TrapFunc = infoRec->SubsequentSolidFillTrap ? SolidTrapHelper : NULL;
+ } else
+ switch(type) {
+ case DO_MONO_8x8:
+ patx = pPriv->pattern0; paty = pPriv->pattern1;
+ if(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_SCREEN_ORIGIN) {
+ xorg = (-xorg) & 0x07; yorg = (-yorg) & 0x07;
+ if(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_BITS) {
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_ORIGIN)) {
+ XAARotateMonoPattern(&patx, &paty, xorg, yorg,
+ (infoRec->Mono8x8PatternFillFlags &
+ BIT_ORDER_IN_BYTE_MSBFIRST));
+ xorg = patx; yorg = paty;
+ }
+ } else {
+ XAACacheInfoPtr pCache = (*infoRec->CacheMono8x8Pattern)(
+ infoRec->pScrn, patx, paty);
+ patx = pCache->x; paty = pCache->y;
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
+ int slot = (yorg << 3) + xorg;
+ patx += pCache->offsets[slot].x;
+ paty += pCache->offsets[slot].y;
+ xorg = patx; yorg = paty;
+ }
+ }
+ RectFunc = Mono8x8PatternRectHelper_ScreenOrigin;
+ if(infoRec->SubsequentMono8x8PatternFillTrap)
+ TrapFunc = Mono8x8PatternTrapHelper_ScreenOrigin;
+ } else { /* !HARDWARE_PATTERN_SCREEN_ORIGIN */
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_BITS)){
+ pCache = (*infoRec->CacheMono8x8Pattern)(
+ infoRec->pScrn, patx, paty);
+ patx = pCache->x; paty = pCache->y;
+ } else {
+ pCache = &(infoRec->ScratchCacheInfoRec);
+ pCache->pat0 = patx;
+ pCache->pat1 = paty;
+ }
+ RectFunc = Mono8x8PatternRectHelper;
+ }
+
+ (*infoRec->SetupForMono8x8PatternFill)(infoRec->pScrn,
+ patx, paty, fg, bg, pGC->alu, pGC->planemask);
+ break;
+ case DO_CACHE_EXPAND:
+ pCache = (*infoRec->CacheMonoStipple)(infoRec->pScrn, pGC->stipple);
+
+ (*infoRec->SetupForScreenToScreenColorExpandFill)(
+ infoRec->pScrn, fg, bg, pGC->alu, pGC->planemask);
+
+ RectFunc = CacheExpandRectHelper;
+ break;
+ case DO_CACHE_BLT:
+ pCache = (*infoRec->CacheStipple)(infoRec->pScrn, pGC->stipple,
+ fg, bg);
+ (*infoRec->SetupForScreenToScreenCopy)(infoRec->pScrn, 1, 1,
+ pGC->alu, pGC->planemask, pCache->trans_color);
+
+ RectFunc = CacheBltRectHelper;
+ break;
+ default:
+ return;
+ }
+
+
+ XAAFillPolygonHelper(infoRec->pScrn, ptsIn, count, topPoint,
+ y, maxy, origin, RectFunc, TrapFunc, xorg, yorg, pCache);
+
+ SET_SYNC_FLAG(infoRec);
+}
+
+
+
+
+ /*******************\
+ | Tiled Polygons |
+ \*******************/
+
+
+void
+XAAFillPolygonTiled(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int shape,
+ int mode,
+ int count,
+ DDXPointPtr ptsIn
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ XAAPixmapPtr pPriv = XAA_GET_PIXMAP_PRIVATE(pGC->tile.pixmap);
+ int origin, type, patx, paty;
+ int y, maxy, xorg, yorg;
+ DDXPointPtr topPoint;
+ XAACacheInfoPtr pCache = NULL;
+ RectFuncPtr RectFunc = NULL;
+ TrapFuncPtr TrapFunc = NULL;
+
+ if(!RegionNumRects(pGC->pCompositeClip))
+ return;
+
+ if (mode == CoordModePrevious) {
+ register DDXPointPtr ppt = ptsIn + 1;
+
+ for (origin = 1; origin < count; origin++, ppt++) {
+ ppt->x += (ppt-1)->x;
+ ppt->y += (ppt-1)->y;
+ }
+ mode = CoordModeOrigin;
+ }
+
+ if (RegionNumRects(pGC->pCompositeClip) != 1) {
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+
+ type = (*infoRec->TiledFillChooser)(pGC);
+
+ if(!type || (type == DO_IMAGE_WRITE)) {
+ (*XAAFallbackOps.FillPolygon)(pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+ if(type == DO_COLOR_8x8) {
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ return;
+ }
+
+ origin = pDraw->x;
+
+ switch( XAAIsEasyPolygon(ptsIn, count, &pGC->pCompositeClip->extents,
+ origin, &topPoint, &y, &maxy, shape) ) {
+ case POLY_USE_MI:
+ miFillPolygon (pDraw, pGC, shape, mode, count, ptsIn);
+ case POLY_FULLY_CLIPPED:
+ return;
+ }
+
+ xorg = (pDraw->x + pGC->patOrg.x);
+ yorg = (pDraw->y + pGC->patOrg.y);
+
+ switch(type) {
+ case DO_MONO_8x8:
+ patx = pPriv->pattern0; paty = pPriv->pattern1;
+ if(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_SCREEN_ORIGIN) {
+ xorg = (-xorg) & 0x07; yorg = (-yorg) & 0x07;
+ if(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_BITS) {
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_ORIGIN)) {
+ XAARotateMonoPattern(&patx, &paty, xorg, yorg,
+ (infoRec->Mono8x8PatternFillFlags &
+ BIT_ORDER_IN_BYTE_MSBFIRST));
+ xorg = patx; yorg = paty;
+ }
+ } else {
+ XAACacheInfoPtr pCache = (*infoRec->CacheMono8x8Pattern)(
+ infoRec->pScrn, patx, paty);
+ patx = pCache->x; paty = pCache->y;
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_ORIGIN)){
+ int slot = (yorg << 3) + xorg;
+ patx += pCache->offsets[slot].x;
+ paty += pCache->offsets[slot].y;
+ xorg = patx; yorg = paty;
+ }
+ }
+ RectFunc = Mono8x8PatternRectHelper_ScreenOrigin;
+ if(infoRec->SubsequentMono8x8PatternFillTrap)
+ TrapFunc = Mono8x8PatternTrapHelper_ScreenOrigin;
+ } else { /* !HARDWARE_PATTERN_SCREEN_ORIGIN */
+ if(!(infoRec->Mono8x8PatternFillFlags &
+ HARDWARE_PATTERN_PROGRAMMED_BITS)){
+ pCache = (*infoRec->CacheMono8x8Pattern)(
+ infoRec->pScrn, patx, paty);
+ patx = pCache->x; paty = pCache->y;
+ }
+ else {
+ pCache = &(infoRec->ScratchCacheInfoRec);
+ pCache->pat0 = patx;
+ pCache->pat1 = paty;
+ }
+ RectFunc = Mono8x8PatternRectHelper;
+ }
+
+ (*infoRec->SetupForMono8x8PatternFill)(infoRec->pScrn,
+ patx, paty, pPriv->fg, pPriv->bg, pGC->alu, pGC->planemask);
+ break;
+ case DO_CACHE_BLT:
+ pCache = (*infoRec->CacheTile)(infoRec->pScrn, pGC->tile.pixmap);
+ (*infoRec->SetupForScreenToScreenCopy)(infoRec->pScrn, 1, 1,
+ pGC->alu, pGC->planemask, -1);
+
+ RectFunc = CacheBltRectHelper;
+ break;
+ case DO_PIXMAP_COPY:
+ pCache = &(infoRec->ScratchCacheInfoRec);
+ pCache->x = pPriv->offscreenArea->box.x1;
+ pCache->y = pPriv->offscreenArea->box.y1;
+ pCache->w = pCache->orig_w =
+ pPriv->offscreenArea->box.x2 - pCache->x;
+ pCache->h = pCache->orig_h =
+ pPriv->offscreenArea->box.y2 - pCache->y;
+
+ (*infoRec->SetupForScreenToScreenCopy)(infoRec->pScrn, 1, 1,
+ pGC->alu, pGC->planemask, -1);
+
+ RectFunc = CacheBltRectHelper;
+ break;
+ default:
+ return;
+ }
+
+ XAAFillPolygonHelper(infoRec->pScrn, ptsIn, count, topPoint,
+ y, maxy, origin, RectFunc, TrapFunc, xorg, yorg, pCache);
+
+ SET_SYNC_FLAG(infoRec);
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-03 07:42:52 +0000