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authormarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
committermarha <marha@users.sourceforge.net>2009-07-25 19:39:46 +0000
commit4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 (patch)
treec1e02b9d3509aa97703aa4b540d4cd22ec4600ed /xorg-server/hw/kdrive/src/kaapict.c
parentdc3c299dd0995549e2a6973ca0f25b254afd38a5 (diff)
downloadvcxsrv-4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05.tar.gz
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Added xorg-server-1.6.2.tar.gz
Diffstat (limited to 'xorg-server/hw/kdrive/src/kaapict.c')
-rw-r--r--xorg-server/hw/kdrive/src/kaapict.c719
1 files changed, 0 insertions, 719 deletions
diff --git a/xorg-server/hw/kdrive/src/kaapict.c b/xorg-server/hw/kdrive/src/kaapict.c
deleted file mode 100644
index 501b6b9c4..000000000
--- a/xorg-server/hw/kdrive/src/kaapict.c
+++ /dev/null
@@ -1,719 +0,0 @@
-/*
- * Copyright © 2001 Keith Packard
- *
- * Partly based on code that is Copyright © The XFree86 Project 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 Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Keith Packard makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <kdrive-config.h>
-#endif
-#include "kdrive.h"
-#include "kaa.h"
-
-#ifdef RENDER
-#include "mipict.h"
-
-#define KAA_DEBUG_FALLBACKS 0
-
-#if KAA_DEBUG_FALLBACKS
-static void kaaCompositeFallbackPictDesc(PicturePtr pict, char *string, int n)
-{
- char format[20];
- char size[20];
- char loc;
- int temp;
-
- if (!pict) {
- snprintf(string, n, "None");
- return;
- }
-
- switch (pict->format)
- {
- case PICT_a8r8g8b8:
- snprintf(format, 20, "ARGB8888");
- break;
- case PICT_r5g6b5:
- snprintf(format, 20, "RGB565 ");
- break;
- case PICT_x1r5g5b5:
- snprintf(format, 20, "RGB555 ");
- break;
- case PICT_a8:
- snprintf(format, 20, "A8 ");
- break;
- case PICT_a1:
- snprintf(format, 20, "A1 ");
- break;
- default:
- snprintf(format, 20, "0x%x", (int)pict->format);
- break;
- }
-
- loc = kaaGetOffscreenPixmap(pict->pDrawable, &temp, &temp) ? 's' : 'm';
-
- snprintf(size, 20, "%dx%d%s", pict->pDrawable->width,
- pict->pDrawable->height, pict->repeat ?
- " R" : "");
-
- snprintf(string, n, "0x%lx:%c fmt %s (%s)", (long)pict, loc, format, size);
-}
-
-static void
-kaaPrintCompositeFallback(CARD8 op,
- PicturePtr pSrc,
- PicturePtr pMask,
- PicturePtr pDst)
-{
- char sop[20];
- char srcdesc[40], maskdesc[40], dstdesc[40];
-
- switch(op)
- {
- case PictOpSrc:
- sprintf(sop, "Src");
- break;
- case PictOpOver:
- sprintf(sop, "Over");
- break;
- default:
- sprintf(sop, "0x%x", (int)op);
- break;
- }
-
- kaaCompositeFallbackPictDesc(pSrc, srcdesc, 40);
- kaaCompositeFallbackPictDesc(pMask, maskdesc, 40);
- kaaCompositeFallbackPictDesc(pDst, dstdesc, 40);
-
- ErrorF("Composite fallback: op %s, \n"
- " src %s, \n"
- " mask %s, \n"
- " dst %s, \n",
- sop, srcdesc, maskdesc, dstdesc);
-}
-
-static void
-kaaPrintTrapezoidFallback(PicturePtr pDst)
-{
- char dstdesc[40];
-
- kaaCompositeFallbackPictDesc(pDst, dstdesc, 40);
-
- ErrorF("Trapezoid fallback: dst %s, %c/%s\n",
- dstdesc,
- (pDst->polyMode == PolyModePrecise) ? 'p' : 'i',
- (pDst->polyEdge == PolyEdgeSharp) ? "a" : "aa");
-}
-#endif
-
-static Bool
-kaaGetPixelFromRGBA(CARD32 *pixel,
- CARD16 red,
- CARD16 green,
- CARD16 blue,
- CARD16 alpha,
- CARD32 format)
-{
- int rbits, bbits, gbits, abits;
- int rshift, bshift, gshift, ashift;
-
- *pixel = 0;
-
- if (!PICT_FORMAT_COLOR(format))
- return FALSE;
-
- rbits = PICT_FORMAT_R(format);
- gbits = PICT_FORMAT_G(format);
- bbits = PICT_FORMAT_B(format);
- abits = PICT_FORMAT_A(format);
-
- if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) {
- bshift = 0;
- gshift = bbits;
- rshift = gshift + gbits;
- ashift = rshift + rbits;
- } else { /* PICT_TYPE_ABGR */
- rshift = 0;
- gshift = rbits;
- bshift = gshift + gbits;
- ashift = bshift + bbits;
- }
-
- *pixel |= ( blue >> (16 - bbits)) << bshift;
- *pixel |= ( red >> (16 - rbits)) << rshift;
- *pixel |= (green >> (16 - gbits)) << gshift;
- *pixel |= (alpha >> (16 - abits)) << ashift;
-
- return TRUE;
-}
-
-
-static Bool
-kaaGetRGBAFromPixel(CARD32 pixel,
- CARD16 *red,
- CARD16 *green,
- CARD16 *blue,
- CARD16 *alpha,
- CARD32 format)
-{
- int rbits, bbits, gbits, abits;
- int rshift, bshift, gshift, ashift;
-
- if (!PICT_FORMAT_COLOR(format))
- return FALSE;
-
- rbits = PICT_FORMAT_R(format);
- gbits = PICT_FORMAT_G(format);
- bbits = PICT_FORMAT_B(format);
- abits = PICT_FORMAT_A(format);
-
- if (PICT_FORMAT_TYPE(format) == PICT_TYPE_ARGB) {
- bshift = 0;
- gshift = bbits;
- rshift = gshift + gbits;
- ashift = rshift + rbits;
- } else { /* PICT_TYPE_ABGR */
- rshift = 0;
- gshift = rbits;
- bshift = gshift + gbits;
- ashift = bshift + bbits;
- }
-
- *red = ((pixel >> rshift ) & ((1 << rbits) - 1)) << (16 - rbits);
- while (rbits < 16) {
- *red |= *red >> rbits;
- rbits <<= 1;
- }
-
- *green = ((pixel >> gshift ) & ((1 << gbits) - 1)) << (16 - gbits);
- while (gbits < 16) {
- *green |= *green >> gbits;
- gbits <<= 1;
- }
-
- *blue = ((pixel >> bshift ) & ((1 << bbits) - 1)) << (16 - bbits);
- while (bbits < 16) {
- *blue |= *blue >> bbits;
- bbits <<= 1;
- }
-
- if (abits) {
- *alpha = ((pixel >> ashift ) & ((1 << abits) - 1)) << (16 - abits);
- while (abits < 16) {
- *alpha |= *alpha >> abits;
- abits <<= 1;
- }
- } else
- *alpha = 0xffff;
-
- return TRUE;
-}
-
-static int
-kaaTryDriverSolidFill(PicturePtr pSrc,
- PicturePtr pDst,
- INT16 xSrc,
- INT16 ySrc,
- INT16 xDst,
- INT16 yDst,
- CARD16 width,
- CARD16 height)
-{
- KaaScreenPriv (pDst->pDrawable->pScreen);
- RegionRec region;
- BoxPtr pbox;
- int nbox;
- int dst_off_x, dst_off_y;
- PixmapPtr pSrcPix, pDstPix;
- CARD32 pixel;
- CARD16 red, green, blue, alpha;
-
- xDst += pDst->pDrawable->x;
- yDst += pDst->pDrawable->y;
- xSrc += pSrc->pDrawable->x;
- ySrc += pSrc->pDrawable->y;
-
- if (!miComputeCompositeRegion (&region, pSrc, NULL, pDst,
- xSrc, ySrc, 0, 0, xDst, yDst,
- width, height))
- return 1;
-
- if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseMemory ((PixmapPtr) pSrc->pDrawable);
- if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseScreen ((PixmapPtr) pDst->pDrawable);
-
- pDstPix = kaaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y);
- if (!pDstPix) {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 0;
- }
-
- if (pSrc->pDrawable->type == DRAWABLE_WINDOW)
- pSrcPix = (*pSrc->pDrawable->pScreen->GetWindowPixmap)(
- (WindowPtr) (pSrc->pDrawable));
- else
- pSrcPix = (PixmapPtr) (pSrc->pDrawable);
-
- /* If source is offscreen, we need to sync the accelerator
- * before accessing it. We'd prefer for it to be in memory.
- */
- if (kaaPixmapIsOffscreen(pSrcPix)) {
- kaaWaitSync(pDst->pDrawable->pScreen);
- }
-
- pixel = *(CARD32 *)(pSrcPix->devPrivate.ptr);
- if (!kaaGetRGBAFromPixel(pixel, &red, &green, &blue, &alpha,
- pSrc->format))
- {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return -1;
- }
- kaaGetPixelFromRGBA(&pixel, red, green, blue, alpha,
- pDst->format);
-
- if (!(*pKaaScr->info->PrepareSolid) (pDstPix, GXcopy, 0xffffffff, pixel))
- {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return -1;
- }
-
- nbox = REGION_NUM_RECTS(&region);
- pbox = REGION_RECTS(&region);
- while (nbox--)
- {
- (*pKaaScr->info->Solid) (pbox->x1 + dst_off_x,
- pbox->y1 + dst_off_y,
- pbox->x2 + dst_off_x,
- pbox->y2 + dst_off_y);
- pbox++;
- }
-
- (*pKaaScr->info->DoneSolid) ();
- kaaMarkSync (pDst->pDrawable->pScreen);
- kaaDrawableDirty (pDst->pDrawable);
-
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 1;
-}
-
-static int
-kaaTryDriverBlend(CARD8 op,
- PicturePtr pSrc,
- PicturePtr pDst,
- INT16 xSrc,
- INT16 ySrc,
- INT16 xDst,
- INT16 yDst,
- CARD16 width,
- CARD16 height)
-{
- KaaScreenPriv (pDst->pDrawable->pScreen);
- RegionRec region;
- BoxPtr pbox;
- int nbox;
- int src_off_x, src_off_y, dst_off_x, dst_off_y;
- PixmapPtr pSrcPix, pDstPix;
- struct _Pixmap srcScratch;
-
- xDst += pDst->pDrawable->x;
- yDst += pDst->pDrawable->y;
-
- xSrc += pSrc->pDrawable->x;
- ySrc += pSrc->pDrawable->y;
-
- if (!miComputeCompositeRegion (&region, pSrc, NULL, pDst,
- xSrc, ySrc, 0, 0, xDst, yDst,
- width, height))
- return 1;
-
-
- if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseScreen ((PixmapPtr) pSrc->pDrawable);
- if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseScreen ((PixmapPtr) pDst->pDrawable);
-
- pSrcPix = kaaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y);
- pDstPix = kaaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y);
-
- if (!pDstPix) {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 0;
- }
-
- if (!pSrcPix && pKaaScr->info->UploadToScratch) {
- if ((*pKaaScr->info->UploadToScratch) ((PixmapPtr) pSrc->pDrawable,
- &srcScratch))
- pSrcPix = &srcScratch;
- }
-
- if (!pSrcPix) {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 0;
- }
-
- if (!(*pKaaScr->info->PrepareBlend) (op, pSrc, pDst, pSrcPix,
- pDstPix))
- {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return -1;
- }
-
- nbox = REGION_NUM_RECTS(&region);
- pbox = REGION_RECTS(&region);
-
- xSrc -= xDst;
- ySrc -= yDst;
-
- while (nbox--)
- {
- (*pKaaScr->info->Blend) (pbox->x1 + xSrc + src_off_x,
- pbox->y1 + ySrc + src_off_y,
- pbox->x1 + dst_off_x,
- pbox->y1 + dst_off_y,
- pbox->x2 - pbox->x1,
- pbox->y2 - pbox->y1);
- pbox++;
- }
-
- (*pKaaScr->info->DoneBlend) ();
- kaaMarkSync (pDst->pDrawable->pScreen);
- kaaDrawableDirty (pDst->pDrawable);
-
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 1;
-}
-
-static int
-kaaTryDriverComposite(CARD8 op,
- PicturePtr pSrc,
- PicturePtr pMask,
- PicturePtr pDst,
- INT16 xSrc,
- INT16 ySrc,
- INT16 xMask,
- INT16 yMask,
- INT16 xDst,
- INT16 yDst,
- CARD16 width,
- CARD16 height)
-{
- KaaScreenPriv (pDst->pDrawable->pScreen);
- RegionRec region;
- BoxPtr pbox;
- int nbox;
- int src_off_x, src_off_y, mask_off_x, mask_off_y, dst_off_x, dst_off_y;
- PixmapPtr pSrcPix, pMaskPix = NULL, pDstPix;
- struct _Pixmap scratch;
-
- xDst += pDst->pDrawable->x;
- yDst += pDst->pDrawable->y;
-
- if (pMask) {
- xMask += pMask->pDrawable->x;
- yMask += pMask->pDrawable->y;
- }
-
- xSrc += pSrc->pDrawable->x;
- ySrc += pSrc->pDrawable->y;
-
- if (!miComputeCompositeRegion (&region, pSrc, pMask, pDst,
- xSrc, ySrc, xMask, yMask, xDst, yDst,
- width, height))
- return 1;
-
- if (pKaaScr->info->CheckComposite &&
- !(*pKaaScr->info->CheckComposite) (op, pSrc, pMask, pDst))
- {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return -1;
- }
-
- if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseScreen ((PixmapPtr) pSrc->pDrawable);
- if (pMask && pMask->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseScreen ((PixmapPtr) pMask->pDrawable);
- if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseScreen ((PixmapPtr) pDst->pDrawable);
-
- pSrcPix = kaaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y);
- if (pMask)
- pMaskPix = kaaGetOffscreenPixmap (pMask->pDrawable, &mask_off_x,
- &mask_off_y);
- pDstPix = kaaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y);
-
- if (!pDstPix) {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 0;
- }
-
- if (!pSrcPix && (!pMask || pMaskPix) && pKaaScr->info->UploadToScratch) {
- if (pSrc->pDrawable->type == DRAWABLE_WINDOW)
- pSrcPix = (*pSrc->pDrawable->pScreen->GetWindowPixmap) (
- (WindowPtr) pSrc->pDrawable);
- else
- pSrcPix = (PixmapPtr) pSrc->pDrawable;
- if ((*pKaaScr->info->UploadToScratch) (pSrcPix, &scratch))
- pSrcPix = &scratch;
- } else if (pSrcPix && pMask && !pMaskPix && pKaaScr->info->UploadToScratch) {
- if (pMask->pDrawable->type == DRAWABLE_WINDOW)
- pMaskPix = (*pMask->pDrawable->pScreen->GetWindowPixmap) (
- (WindowPtr) pMask->pDrawable);
- else
- pMaskPix = (PixmapPtr) pMask->pDrawable;
- if ((*pKaaScr->info->UploadToScratch) (pMaskPix, &scratch))
- pMaskPix = &scratch;
- }
-
- if (!pSrcPix || (pMask && !pMaskPix)) {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 0;
- }
-
- if (!(*pKaaScr->info->PrepareComposite) (op, pSrc, pMask, pDst, pSrcPix,
- pMaskPix, pDstPix))
- {
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return -1;
- }
-
- nbox = REGION_NUM_RECTS(&region);
- pbox = REGION_RECTS(&region);
-
- xMask -= xDst;
- yMask -= yDst;
-
- xSrc -= xDst;
- ySrc -= yDst;
-
- while (nbox--)
- {
- (*pKaaScr->info->Composite) (pbox->x1 + xSrc + src_off_x,
- pbox->y1 + ySrc + src_off_y,
- pbox->x1 + xMask + mask_off_x,
- pbox->y1 + yMask + mask_off_y,
- pbox->x1 + dst_off_x,
- pbox->y1 + dst_off_y,
- pbox->x2 - pbox->x1,
- pbox->y2 - pbox->y1);
- pbox++;
- }
-
- (*pKaaScr->info->DoneComposite) ();
- kaaMarkSync (pDst->pDrawable->pScreen);
- kaaDrawableDirty (pDst->pDrawable);
-
- REGION_UNINIT(pDst->pDrawable->pScreen, &region);
- return 1;
-}
-
-
-void
-kaaComposite(CARD8 op,
- PicturePtr pSrc,
- PicturePtr pMask,
- PicturePtr pDst,
- INT16 xSrc,
- INT16 ySrc,
- INT16 xMask,
- INT16 yMask,
- INT16 xDst,
- INT16 yDst,
- CARD16 width,
- CARD16 height)
-{
- KdScreenPriv (pDst->pDrawable->pScreen);
- KaaScreenPriv (pDst->pDrawable->pScreen);
- int ret = -1;
-
- if (!pMask && pSrc->pDrawable)
- {
- if (op == PictOpSrc)
- {
- if (pScreenPriv->enabled && pSrc->pDrawable && pSrc->pDrawable->width == 1 &&
- pSrc->pDrawable->height == 1 && pSrc->repeat)
- {
- ret = kaaTryDriverSolidFill(pSrc, pDst, xSrc, ySrc, xDst, yDst,
- width, height);
- if (ret == 1)
- return;
- }
- else if (!pSrc->repeat && !pSrc->transform &&
- pSrc->format == pDst->format)
- {
- RegionRec region;
-
- xDst += pDst->pDrawable->x;
- yDst += pDst->pDrawable->y;
- xSrc += pSrc->pDrawable->x;
- ySrc += pSrc->pDrawable->y;
-
- if (!miComputeCompositeRegion (&region, pSrc, pMask, pDst,
- xSrc, ySrc, xMask, yMask, xDst,
- yDst, width, height))
- return;
-
-
- kaaCopyNtoN (pSrc->pDrawable, pDst->pDrawable, 0,
- REGION_RECTS(&region), REGION_NUM_RECTS(&region),
- xSrc - xDst, ySrc - yDst,
- FALSE, FALSE, 0, 0);
- return;
- }
- }
-
- if (pScreenPriv->enabled && pKaaScr->info->PrepareBlend &&
- !pSrc->alphaMap && !pDst->alphaMap)
- {
- ret = kaaTryDriverBlend(op, pSrc, pDst, xSrc, ySrc, xDst, yDst,
- width, height);
- if (ret == 1)
- return;
- }
- }
-
- if (pSrc->pDrawable && (!pMask || pMask->pDrawable) &&
- pScreenPriv->enabled && pKaaScr->info->PrepareComposite &&
- !pSrc->alphaMap && (!pMask || !pMask->alphaMap) && !pDst->alphaMap)
- {
- ret = kaaTryDriverComposite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask,
- yMask, xDst, yDst, width, height);
- if (ret == 1)
- return;
- }
-
- if (ret != 0) {
- /* failure to accelerate was not due to pixmaps being in the wrong
- * locations.
- */
- if (pSrc->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseMemory ((PixmapPtr) pSrc->pDrawable);
- if (pMask && pMask->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseMemory ((PixmapPtr) pMask->pDrawable);
- if (pDst->pDrawable->type == DRAWABLE_PIXMAP)
- kaaPixmapUseMemory ((PixmapPtr) pDst->pDrawable);
- }
-
-#if KAA_DEBUG_FALLBACKS
- kaaPrintCompositeFallback (op, pSrc, pMask, pDst);
-#endif
-
- KdCheckComposite (op, pSrc, pMask, pDst, xSrc, ySrc,
- xMask, yMask, xDst, yDst, width, height);
-}
-#endif
-
-static xFixed
-miLineFixedX (xLineFixed *l, xFixed y, Bool ceil)
-{
- xFixed dx = l->p2.x - l->p1.x;
- xFixed_32_32 ex = (xFixed_32_32) (y - l->p1.y) * dx;
- xFixed dy = l->p2.y - l->p1.y;
- if (ceil)
- ex += (dy - 1);
- return l->p1.x + (xFixed) (ex / dy);
-}
-
-/* Need to decide just how much to trim, to maintain translation independence
- * when converted to floating point.
- */
-#define XFIXED_TO_FLOAT(x) (((float)((x) & 0xffffff00)) / 65536.0)
-
-/* This is just to allow us to work on the hardware side of the problem while
- * waiting for cairo to get a new tesselator. We may not be able to support
- * RasterizeTrapezoid at all due to the abutting edges requirement, but it might
- * be technically legal if we widened the trap by some epsilon, so that alpha
- * values at abutting edges were a little too big and capped at one, rather than
- * a little too small and looked bad.
- */
-void kaaRasterizeTrapezoid(PicturePtr pDst,
- xTrapezoid *trap,
- int xoff,
- int yoff)
-{
- KdScreenPriv (pDst->pDrawable->pScreen);
- KaaScreenPriv (pDst->pDrawable->pScreen);
- KaaTrapezoid ktrap;
- PixmapPtr pPix;
- xFixed x1, x2;
-
- if (!pScreenPriv->enabled ||
- !pKaaScr->info->PrepareTrapezoids ||
- pDst->pDrawable->type != DRAWABLE_PIXMAP ||
- pDst->alphaMap || pDst->format != PICT_a8)
- {
- KdCheckRasterizeTrapezoid (pDst, trap, xoff, yoff);
-#if KAA_DEBUG_FALLBACKS
- kaaPrintTrapezoidFallback (pDst);
-#endif
- return;
- }
- pPix = (PixmapPtr)pDst->pDrawable;
-
- kaaPixmapUseScreen (pPix);
-
- if (!kaaPixmapIsOffscreen (pPix) ||
- !(*pKaaScr->info->PrepareTrapezoids) (pDst, pPix))
- {
-#if KAA_DEBUG_FALLBACKS
- kaaPrintTrapezoidFallback (pDst);
-#endif
- KdCheckRasterizeTrapezoid (pDst, trap, xoff, yoff);
- return;
- }
-
- ktrap.ty = XFIXED_TO_FLOAT(trap->top) + yoff;
- x1 = miLineFixedX (&trap->left, trap->top, FALSE);
- x2 = miLineFixedX (&trap->right, trap->top, TRUE);
- ktrap.tl = XFIXED_TO_FLOAT(x1) + xoff;
- ktrap.tr = XFIXED_TO_FLOAT(x2) + xoff;
- ktrap.by = XFIXED_TO_FLOAT(trap->bottom) + yoff;
- x1 = miLineFixedX (&trap->left, trap->bottom, FALSE);
- x2 = miLineFixedX (&trap->right, trap->bottom, TRUE);
- ktrap.bl = XFIXED_TO_FLOAT(x1) + xoff;
- ktrap.br = XFIXED_TO_FLOAT(x2) + xoff;
-
- (*pKaaScr->info->Trapezoids) (&ktrap, 1);
- (*pKaaScr->info->DoneTrapezoids) ();
-}
-
-void
-kaaInitTrapOffsets(int grid_order, float *x_offsets, float *y_offsets,
- float x_offset, float y_offset)
-{
- int i = 0;
- float x, y, x_count, y_count;
-
- x_count = (1 << (grid_order / 2)) + 1;
- y_count = (1 << (grid_order / 2)) - 1;
-
- x_offset += 1.0 / x_count / 2.0;
- y_offset += 1.0 / y_count / 2.0;
-
- for (x = 0; x < x_count; x++) {
- for (y = 0; y < y_count; y++) {
- x_offsets[i] = x / x_count + x_offset;
- y_offsets[i] = y / y_count + y_offset;
- i++;
- }
- }
-}
-