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xserver/hw/xgl/xglfill.c

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/*
* Copyright © 2004 David Reveman
*
* 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
* David Reveman not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
* David Reveman makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*
* DAVID REVEMAN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
* NO EVENT SHALL DAVID REVEMAN 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: David Reveman <davidr@novell.com>
*/
#include "xgl.h"
#include "gcstruct.h"
#include "fb.h"
Bool
xglFill (DrawablePtr pDrawable,
GCPtr pGC,
xglGeometryPtr pGeometry,
int x,
int y,
int width,
int height,
BoxPtr pBox,
int nBox)
{
XGL_GC_PRIV (pGC);
switch (pGC->fillStyle) {
case FillSolid:
if (xglSolid (pDrawable,
pGCPriv->op, pGCPriv->fg,
pGeometry,
x, y,
width, height,
pBox, nBox))
return TRUE;
break;
case FillStippled:
case FillOpaqueStippled:
break;
case FillTiled:
if (xglTile (pDrawable,
pGCPriv->op, pGC->tile.pixmap,
-(pGC->patOrg.x + pDrawable->x),
-(pGC->patOrg.y + pDrawable->y),
pGeometry,
x, y,
width, height,
pBox, nBox))
return TRUE;
break;
}
return FALSE;
}
static void
xglFillBox (DrawablePtr pDrawable,
GCPtr pGC,
int x,
int y,
int width,
int height,
BoxPtr pBox,
int nBox)
{
if (!nBox)
return;
if (!xglFill (pDrawable, pGC, NULL, x, y, width, height, pBox, nBox))
{
RegionRec region;
XGL_DRAWABLE_PIXMAP (pDrawable);
XGL_PIXMAP_PRIV (pPixmap);
if (!xglMapPixmapBits (pPixmap))
FatalError (XGL_SW_FAILURE_STRING);
switch (pGC->fillStyle) {
case FillSolid:
break;
case FillStippled:
case FillOpaqueStippled:
if (!xglSyncBits (&pGC->stipple->drawable, NullBox))
FatalError (XGL_SW_FAILURE_STRING);
break;
case FillTiled:
if (!xglSyncBits (&pGC->tile.pixmap->drawable, NullBox))
FatalError (XGL_SW_FAILURE_STRING);
break;
}
pPixmapPriv->damageBox = miEmptyBox;
while (nBox--)
{
fbFill (pDrawable, pGC,
pBox->x1, pBox->y1,
pBox->x2 - pBox->x1, pBox->y2 - pBox->y1);
REGION_INIT (pDrawable->pScreen, &region, pBox, 1);
xglAddSurfaceDamage (pDrawable, &region);
REGION_UNINIT (pDrawable->pScreen, &region);
pBox++;
}
} else
xglAddCurrentBitDamage (pDrawable);
}
#define N_STACK_BOX 1024
static BoxPtr
xglMoreBoxes (BoxPtr stackBox,
BoxPtr heapBox,
int nBoxes)
{
Bool stack = !heapBox;
heapBox = xrealloc (heapBox, sizeof (BoxRec) * nBoxes);
if (!heapBox)
return NULL;
if (stack)
memcpy (heapBox, stackBox, sizeof (BoxRec) * N_STACK_BOX);
return heapBox;
}
#define ADD_BOX(pBox, nBox, stackBox, heapBox, size, box) \
{ \
if ((nBox) == (size)) \
{ \
(size) *= 2; \
(heapBox) = xglMoreBoxes (stackBox, heapBox, size); \
if (heapBox) \
{ \
(pBox) = (heapBox) + (nBox); \
*(pBox)++ = (box); \
(nBox)++; \
} \
} \
else \
{ \
*(pBox)++ = (box); \
(nBox)++; \
} \
}
void
xglFillRect (DrawablePtr pDrawable,
GCPtr pGC,
int nrect,
xRectangle *prect)
{
RegionPtr pClip = pGC->pCompositeClip;
BoxPtr pClipBox;
BoxPtr pExtent = REGION_EXTENTS (pGC->pScreen, pClip);
BoxRec part, full;
BoxPtr heapBox = NULL;
BoxRec stackBox[N_STACK_BOX];
int size = N_STACK_BOX;
BoxPtr pBox = stackBox;
int nClip, nBox = 0;
while (nrect--)
{
full.x1 = prect->x + pDrawable->x;
full.y1 = prect->y + pDrawable->y;
full.x2 = full.x1 + (int) prect->width;
full.y2 = full.y1 + (int) prect->height;
prect++;
if (full.x1 < pExtent->x1)
full.x1 = pExtent->x1;
if (full.y1 < pExtent->y1)
full.y1 = pExtent->y1;
if (full.x2 > pExtent->x2)
full.x2 = pExtent->x2;
if (full.y2 > pExtent->y2)
full.y2 = pExtent->y2;
if (full.x1 >= full.x2 || full.y1 >= full.y2)
continue;
nClip = REGION_NUM_RECTS (pClip);
if (nClip == 1)
{
ADD_BOX (pBox, nBox, stackBox, heapBox, size, full);
}
else
{
pClipBox = REGION_RECTS (pClip);
while (nClip--)
{
part = *pClipBox++;
if (part.x1 < full.x1)
part.x1 = full.x1;
if (part.y1 < full.y1)
part.y1 = full.y1;
if (part.x2 > full.x2)
part.x2 = full.x2;
if (part.y2 > full.y2)
part.y2 = full.y2;
if (part.x1 < part.x2 && part.y1 < part.y2)
ADD_BOX (pBox, nBox, stackBox, heapBox, size, part);
}
}
}
xglFillBox (pDrawable, pGC,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
(heapBox) ? heapBox : stackBox, nBox);
if (heapBox)
xfree (heapBox);
}
void
xglFillSpan (DrawablePtr pDrawable,
GCPtr pGC,
int n,
DDXPointPtr ppt,
int *pwidth)
{
RegionPtr pClip = pGC->pCompositeClip;
BoxPtr pClipBox;
BoxPtr pExtent = REGION_EXTENTS (pGC->pScreen, pClip);
BoxRec part, full;
BoxPtr heapBox = NULL;
BoxRec stackBox[N_STACK_BOX];
int size = N_STACK_BOX;
BoxPtr pBox = stackBox;
int nClip, nBox = 0;
while (n--)
{
full.x1 = ppt->x;
full.y1 = ppt->y;
full.x2 = full.x1 + *pwidth;
full.y2 = full.y1 + 1;
pwidth++;
ppt++;
if (full.x1 < pExtent->x1)
full.x1 = pExtent->x1;
if (full.y1 < pExtent->y1)
full.y1 = pExtent->y1;
if (full.x2 > pExtent->x2)
full.x2 = pExtent->x2;
if (full.y2 > pExtent->y2)
full.y2 = pExtent->y2;
if (full.x1 >= full.x2 || full.y1 >= full.y2)
continue;
nClip = REGION_NUM_RECTS (pClip);
if (nClip == 1)
{
ADD_BOX (pBox, nBox, stackBox, heapBox, size, full);
}
else
{
pClipBox = REGION_RECTS (pClip);
while (nClip--)
{
part = *pClipBox++;
if (part.x1 < full.x1)
part.x1 = full.x1;
if (part.y1 < full.y1)
part.y1 = full.y1;
if (part.x2 > full.x2)
part.x2 = full.x2;
if (part.y2 > full.y2)
part.y2 = full.y2;
if (part.x1 < part.x2 && part.y1 < part.y2)
ADD_BOX (pBox, nBox, stackBox, heapBox, size, part);
}
}
}
xglFillBox (pDrawable, pGC,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
(heapBox) ? heapBox : stackBox, nBox);
if (heapBox)
xfree (heapBox);
}
Bool
xglFillLine (DrawablePtr pDrawable,
GCPtr pGC,
int mode,
int npt,
DDXPointPtr ppt)
{
RegionPtr pClip = pGC->pCompositeClip;
BoxPtr pExtent = REGION_EXTENTS (pGC->pScreen, pClip);
Bool coincidentEndpoints = FALSE;
Bool horizontalAndVertical = TRUE;
DDXPointPtr pptTmp;
int nptTmp;
DDXPointRec pt;
xglGeometryPtr pGeometry;
XGL_SCREEN_PRIV (pGC->pScreen);
if (npt < 2)
return TRUE;
pt = *ppt;
nptTmp = npt - 1;
pptTmp = ppt + 1;
if (mode == CoordModePrevious)
{
while (nptTmp--)
{
if (pptTmp->x && pptTmp->y)
horizontalAndVertical = FALSE;
pt.x += pptTmp->x;
pt.y += pptTmp->y;
pptTmp++;
}
if (pt.x == ppt->x && pt.y == ppt->y)
coincidentEndpoints = TRUE;
}
else
{
while (nptTmp--)
{
if (pptTmp->x != pt.x && pptTmp->y != pt.y)
{
horizontalAndVertical = FALSE;
break;
}
pt = *pptTmp++;
}
if (ppt[npt - 1].x == ppt->x && ppt[npt - 1].y == ppt->y)
coincidentEndpoints = TRUE;
}
if (horizontalAndVertical)
{
BoxPtr pClipBox;
BoxRec part, full;
BoxPtr heapBox = NULL;
BoxRec stackBox[N_STACK_BOX];
int size = N_STACK_BOX;
BoxPtr pBox = stackBox;
int nClip, nBox = 0;
int dx, dy;
pt = *ppt;
ppt++;
npt--;
while (npt--)
{
if (mode == CoordModePrevious)
{
dx = ppt->x;
dy = ppt->y;
}
else
{
dx = ppt->x - pt.x;
dy = ppt->y - pt.y;
}
if (dx)
{
if (dx > 0)
{
full.x1 = pt.x + pDrawable->x;
if (npt || coincidentEndpoints)
full.x2 = full.x1 + dx;
else
full.x2 = full.x1 + dx + 1;
}
else
{
full.x2 = pt.x + pDrawable->x + 1;
if (npt || coincidentEndpoints)
full.x1 = full.x2 + dx;
else
full.x1 = full.x2 + dx - 1;
}
full.y1 = pt.y + pDrawable->y;
full.y2 = full.y1 + 1;
}
else
{
if (dy > 0)
{
full.y1 = pt.y + pDrawable->y;
if (npt || coincidentEndpoints)
full.y2 = full.y1 + dy;
else
full.y2 = full.y1 + dy + 1;
}
else
{
full.y2 = pt.y + pDrawable->y + 1;
if (npt || coincidentEndpoints)
full.y1 = full.y2 + dy;
else
full.y1 = full.y2 + dy - 1;
}
full.x1 = pt.x + pDrawable->x;
full.x2 = full.x1 + 1;
}
pt.x += dx;
pt.y += dy;
ppt++;
if (full.x1 < pExtent->x1)
full.x1 = pExtent->x1;
if (full.y1 < pExtent->y1)
full.y1 = pExtent->y1;
if (full.x2 > pExtent->x2)
full.x2 = pExtent->x2;
if (full.y2 > pExtent->y2)
full.y2 = pExtent->y2;
if (full.x1 >= full.x2 || full.y1 >= full.y2)
continue;
nClip = REGION_NUM_RECTS (pClip);
if (nClip == 1)
{
ADD_BOX (pBox, nBox, stackBox, heapBox, size, full);
}
else
{
pClipBox = REGION_RECTS (pClip);
while (nClip--)
{
part = *pClipBox++;
if (part.x1 < full.x1)
part.x1 = full.x1;
if (part.y1 < full.y1)
part.y1 = full.y1;
if (part.x2 > full.x2)
part.x2 = full.x2;
if (part.y2 > full.y2)
part.y2 = full.y2;
if (part.x1 < part.x2 && part.y1 < part.y2)
ADD_BOX (pBox, nBox, stackBox, heapBox, size, part);
}
}
}
xglFillBox (pDrawable, pGC,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
(heapBox) ? heapBox : stackBox, nBox);
if (heapBox)
xfree (heapBox);
return TRUE;
}
if (!pScreenPriv->lines)
return FALSE;
if (coincidentEndpoints)
npt--;
pGeometry = xglGetScratchVertexGeometry (pGC->pScreen, npt);
GEOMETRY_ADD_LINE (pGC->pScreen, pGeometry,
coincidentEndpoints, mode, npt, ppt);
if (coincidentEndpoints)
GEOMETRY_SET_VERTEX_PRIMITIVE (pGeometry, GLITZ_PRIMITIVE_LINE_LOOP);
else
GEOMETRY_SET_VERTEX_PRIMITIVE (pGeometry, GLITZ_PRIMITIVE_LINE_STRIP);
/* Lines need a 0.5 translate */
GEOMETRY_TRANSLATE_FIXED (pGeometry, 1 << 15, 1 << 15);
GEOMETRY_TRANSLATE (pGeometry, pDrawable->x, pDrawable->y);
pExtent = REGION_EXTENTS (pDrawable->pScreen, pGC->pCompositeClip);
if (xglFill (pDrawable, pGC, pGeometry,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
REGION_RECTS (pGC->pCompositeClip),
REGION_NUM_RECTS (pGC->pCompositeClip)))
{
xglAddCurrentBitDamage (pDrawable);
return TRUE;
}
return FALSE;
}
Bool
xglFillSegment (DrawablePtr pDrawable,
GCPtr pGC,
int nSegInit,
xSegment *pSegInit)
{
RegionPtr pClip = pGC->pCompositeClip;
BoxPtr pExtent = REGION_EXTENTS (pGC->pScreen, pClip);
Bool horizontalAndVertical = TRUE;
xglGeometryPtr pGeometry;
xSegment *pSeg;
int nSeg;
XGL_SCREEN_PRIV (pGC->pScreen);
if (nSegInit < 1)
return TRUE;
pSeg = pSegInit;
nSeg = nSegInit;
while (nSeg--)
{
if (pSeg->x1 != pSeg->x2 && pSeg->y1 != pSeg->y2)
horizontalAndVertical = FALSE;
pSeg++;
}
if (horizontalAndVertical)
{
BoxPtr pClipBox;
BoxRec part, full;
BoxPtr heapBox = NULL;
BoxRec stackBox[N_STACK_BOX];
int size = N_STACK_BOX;
BoxPtr pBox = stackBox;
int nClip, nBox = 0;
while (nSegInit--)
{
if (pSegInit->x1 != pSegInit->x2)
{
if (pSegInit->x1 < pSegInit->x2)
{
full.x1 = pSegInit->x1;
full.x2 = pSegInit->x2;
}
else
{
full.x1 = pSegInit->x2;
full.x2 = pSegInit->x1;
}
full.x1 += pDrawable->x;
full.x2 += pDrawable->x + 1;
full.y1 = pSegInit->y1 + pDrawable->y;
full.y2 = full.y1 + 1;
}
else
{
if (pSegInit->y1 < pSegInit->y2)
{
full.y1 = pSegInit->y1;
full.y2 = pSegInit->y2;
}
else
{
full.y1 = pSegInit->y2;
full.y2 = pSegInit->y1;
}
full.y1 += pDrawable->y;
full.y2 += pDrawable->y + 1;
full.x1 = pSegInit->x1 + pDrawable->x;
full.x2 = full.x1 + 1;
}
pSegInit++;
if (full.x1 < pExtent->x1)
full.x1 = pExtent->x1;
if (full.y1 < pExtent->y1)
full.y1 = pExtent->y1;
if (full.x2 > pExtent->x2)
full.x2 = pExtent->x2;
if (full.y2 > pExtent->y2)
full.y2 = pExtent->y2;
if (full.x1 >= full.x2 || full.y1 >= full.y2)
continue;
nClip = REGION_NUM_RECTS (pClip);
if (nClip == 1)
{
ADD_BOX (pBox, nBox, stackBox, heapBox, size, full);
}
else
{
pClipBox = REGION_RECTS (pClip);
while (nClip--)
{
part = *pClipBox++;
if (part.x1 < full.x1)
part.x1 = full.x1;
if (part.y1 < full.y1)
part.y1 = full.y1;
if (part.x2 > full.x2)
part.x2 = full.x2;
if (part.y2 > full.y2)
part.y2 = full.y2;
if (part.x1 < part.x2 && part.y1 < part.y2)
ADD_BOX (pBox, nBox, stackBox, heapBox, size, part);
}
}
}
xglFillBox (pDrawable, pGC,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
(heapBox) ? heapBox : stackBox, nBox);
if (heapBox)
xfree (heapBox);
return TRUE;
}
if (!pScreenPriv->lines)
return FALSE;
pGeometry = xglGetScratchVertexGeometry (pGC->pScreen, 2 * nSegInit);
GEOMETRY_ADD_SEGMENT (pGC->pScreen, pGeometry, nSegInit, pSegInit);
/* Line segments need 0.5 translate */
GEOMETRY_TRANSLATE_FIXED (pGeometry, 1 << 15, 1 << 15);
GEOMETRY_SET_VERTEX_PRIMITIVE (pGeometry, GLITZ_PRIMITIVE_LINES);
GEOMETRY_TRANSLATE (pGeometry, pDrawable->x, pDrawable->y);
if (xglFill (pDrawable, pGC, pGeometry,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
REGION_RECTS (pGC->pCompositeClip),
REGION_NUM_RECTS (pGC->pCompositeClip)))
{
xglAddCurrentBitDamage (pDrawable);
return TRUE;
}
return FALSE;
}
Bool
xglFillGlyph (DrawablePtr pDrawable,
GCPtr pGC,
int x,
int y,
unsigned int nGlyph,
CharInfoPtr *ppci,
pointer pglyphBase)
{
BoxPtr pExtent;
xglGeometryRec geometry;
if (nGlyph < 1)
return TRUE;
pExtent = REGION_EXTENTS (pDrawable->pScreen, pGC->pCompositeClip);
x += pDrawable->x;
y += pDrawable->y;
GEOMETRY_INIT (pDrawable->pScreen, &geometry,
GLITZ_GEOMETRY_TYPE_BITMAP,
GEOMETRY_USAGE_SYSMEM, 0);
GEOMETRY_FOR_GLYPH (pDrawable->pScreen,
&geometry,
nGlyph,
ppci,
pglyphBase);
GEOMETRY_TRANSLATE (&geometry, x, y);
if (xglFill (pDrawable, pGC, &geometry,
pExtent->x1, pExtent->y1,
pExtent->x2 - pExtent->x1, pExtent->y2 - pExtent->y1,
REGION_RECTS (pGC->pCompositeClip),
REGION_NUM_RECTS (pGC->pCompositeClip)))
{
GEOMETRY_UNINIT (&geometry);
xglAddCurrentBitDamage (pDrawable);
return TRUE;
}
GEOMETRY_UNINIT (&geometry);
return FALSE;
}
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