aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/fb/fbpixmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/fb/fbpixmap.c')
-rw-r--r--xorg-server/fb/fbpixmap.c408
1 files changed, 193 insertions, 215 deletions
diff --git a/xorg-server/fb/fbpixmap.c b/xorg-server/fb/fbpixmap.c
index a356c67b6..fbcdca99c 100644
--- a/xorg-server/fb/fbpixmap.c
+++ b/xorg-server/fb/fbpixmap.c
@@ -29,30 +29,30 @@
#include "fb.h"
PixmapPtr
-fbCreatePixmapBpp (ScreenPtr pScreen, int width, int height, int depth, int bpp,
- unsigned usage_hint)
+fbCreatePixmapBpp(ScreenPtr pScreen, int width, int height, int depth, int bpp,
+ unsigned usage_hint)
{
- PixmapPtr pPixmap;
- size_t datasize;
- size_t paddedWidth;
- int adjust;
- int base;
+ PixmapPtr pPixmap;
+ size_t datasize;
+ size_t paddedWidth;
+ int adjust;
+ int base;
- paddedWidth = ((width * bpp + FB_MASK) >> FB_SHIFT) * sizeof (FbBits);
+ paddedWidth = ((width * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);
if (paddedWidth / 4 > 32767 || height > 32767)
- return NullPixmap;
+ return NullPixmap;
datasize = height * paddedWidth;
base = pScreen->totalPixmapSize;
adjust = 0;
if (base & 7)
- adjust = 8 - (base & 7);
+ adjust = 8 - (base & 7);
datasize += adjust;
#ifdef FB_DEBUG
datasize += 2 * paddedWidth;
#endif
pPixmap = AllocatePixmap(pScreen, datasize);
if (!pPixmap)
- return NullPixmap;
+ return NullPixmap;
pPixmap->drawable.type = DRAWABLE_PIXMAP;
pPixmap->drawable.class = 0;
pPixmap->drawable.pScreen = pScreen;
@@ -66,11 +66,12 @@ fbCreatePixmapBpp (ScreenPtr pScreen, int width, int height, int depth, int bpp,
pPixmap->drawable.height = height;
pPixmap->devKind = paddedWidth;
pPixmap->refcnt = 1;
- pPixmap->devPrivate.ptr = (pointer) ((char *)pPixmap + base + adjust);
+ pPixmap->devPrivate.ptr = (pointer) ((char *) pPixmap + base + adjust);
#ifdef FB_DEBUG
- pPixmap->devPrivate.ptr = (void *) ((char *) pPixmap->devPrivate.ptr + paddedWidth);
- fbInitializeDrawable (&pPixmap->drawable);
+ pPixmap->devPrivate.ptr =
+ (void *) ((char *) pPixmap->devPrivate.ptr + paddedWidth);
+ fbInitializeDrawable(&pPixmap->drawable);
#endif
#ifdef COMPOSITE
@@ -84,21 +85,22 @@ fbCreatePixmapBpp (ScreenPtr pScreen, int width, int height, int depth, int bpp,
}
PixmapPtr
-fbCreatePixmap (ScreenPtr pScreen, int width, int height, int depth,
- unsigned usage_hint)
+fbCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
+ unsigned usage_hint)
{
- int bpp;
- bpp = BitsPerPixel (depth);
+ int bpp;
+
+ bpp = BitsPerPixel(depth);
if (bpp == 32 && depth <= 24)
- bpp = fbGetScreenPrivate(pScreen)->pix32bpp;
- return fbCreatePixmapBpp (pScreen, width, height, depth, bpp, usage_hint);
+ bpp = fbGetScreenPrivate(pScreen)->pix32bpp;
+ return fbCreatePixmapBpp(pScreen, width, height, depth, bpp, usage_hint);
}
Bool
-fbDestroyPixmap (PixmapPtr pPixmap)
+fbDestroyPixmap(PixmapPtr pPixmap)
{
- if(--pPixmap->refcnt)
- return TRUE;
+ if (--pPixmap->refcnt)
+ return TRUE;
FreePixmap(pPixmap);
return TRUE;
}
@@ -138,183 +140,160 @@ if (((rx1) < (rx2)) && ((ry1) < (ry2)) && \
RegionPtr
fbPixmapToRegion(PixmapPtr pPix)
{
- register RegionPtr pReg;
- FbBits *pw, w;
- register int ib;
- int width, h, base, rx1 = 0, crects;
- FbBits *pwLineEnd;
- int irectPrevStart, irectLineStart;
- register BoxPtr prectO, prectN;
- BoxPtr FirstRect, rects, prectLineStart;
- Bool fInBox, fSame;
- register FbBits mask0 = FB_ALLONES & ~FbScrRight(FB_ALLONES, 1);
- FbBits *pwLine;
- int nWidth;
-
+ register RegionPtr pReg;
+ FbBits *pw, w;
+ register int ib;
+ int width, h, base, rx1 = 0, crects;
+ FbBits *pwLineEnd;
+ int irectPrevStart, irectLineStart;
+ register BoxPtr prectO, prectN;
+ BoxPtr FirstRect, rects, prectLineStart;
+ Bool fInBox, fSame;
+ register FbBits mask0 = FB_ALLONES & ~FbScrRight(FB_ALLONES, 1);
+ FbBits *pwLine;
+ int nWidth;
+
pReg = RegionCreate(NULL, 1);
- if(!pReg)
- return NullRegion;
+ if (!pReg)
+ return NullRegion;
FirstRect = RegionBoxptr(pReg);
rects = FirstRect;
fbPrepareAccess(&pPix->drawable);
pwLine = (FbBits *) pPix->devPrivate.ptr;
- nWidth = pPix->devKind >> (FB_SHIFT-3);
+ nWidth = pPix->devKind >> (FB_SHIFT - 3);
width = pPix->drawable.width;
pReg->extents.x1 = width - 1;
pReg->extents.x2 = 0;
irectPrevStart = -1;
- for(h = 0; h < pPix->drawable.height; h++)
- {
- pw = pwLine;
- pwLine += nWidth;
- irectLineStart = rects - FirstRect;
- /* If the Screen left most bit of the word is set, we're starting in
- * a box */
- if(READ(pw) & mask0)
- {
- fInBox = TRUE;
- rx1 = 0;
- }
- else
- fInBox = FALSE;
- /* Process all words which are fully in the pixmap */
- pwLineEnd = pw + (width >> FB_SHIFT);
- for (base = 0; pw < pwLineEnd; base += FB_UNIT)
- {
- w = READ(pw++);
- if (fInBox)
- {
- if (!~w)
- continue;
- }
- else
- {
- if (!w)
- continue;
- }
- for(ib = 0; ib < FB_UNIT; ib++)
- {
- /* If the Screen left most bit of the word is set, we're
- * starting a box */
- if(w & mask0)
- {
- if(!fInBox)
- {
- rx1 = base + ib;
- /* start new box */
- fInBox = TRUE;
- }
- }
- else
- {
- if(fInBox)
- {
- /* end box */
- ADDRECT(pReg, rects, FirstRect,
- rx1, h, base + ib, h + 1);
- fInBox = FALSE;
- }
- }
- /* Shift the word VISUALLY left one. */
- w = FbScrLeft(w, 1);
- }
- }
- if(width & FB_MASK)
- {
- /* Process final partial word on line */
- w = READ(pw++);
- for(ib = 0; ib < (width & FB_MASK); ib++)
- {
- /* If the Screen left most bit of the word is set, we're
- * starting a box */
- if(w & mask0)
- {
- if(!fInBox)
- {
- rx1 = base + ib;
- /* start new box */
- fInBox = TRUE;
- }
- }
- else
- {
- if(fInBox)
- {
- /* end box */
- ADDRECT(pReg, rects, FirstRect,
- rx1, h, base + ib, h + 1);
- fInBox = FALSE;
- }
- }
- /* Shift the word VISUALLY left one. */
- w = FbScrLeft(w, 1);
- }
- }
- /* If scanline ended with last bit set, end the box */
- if(fInBox)
- {
- ADDRECT(pReg, rects, FirstRect,
- rx1, h, base + (width & FB_MASK), h + 1);
- }
- /* if all rectangles on this line have the same x-coords as
- * those on the previous line, then add 1 to all the previous y2s and
- * throw away all the rectangles from this line
- */
- fSame = FALSE;
- if(irectPrevStart != -1)
- {
- crects = irectLineStart - irectPrevStart;
- if(crects == ((rects - FirstRect) - irectLineStart))
- {
- prectO = FirstRect + irectPrevStart;
- prectN = prectLineStart = FirstRect + irectLineStart;
- fSame = TRUE;
- while(prectO < prectLineStart)
- {
- if((prectO->x1 != prectN->x1) || (prectO->x2 != prectN->x2))
- {
- fSame = FALSE;
- break;
- }
- prectO++;
- prectN++;
- }
- if (fSame)
- {
- prectO = FirstRect + irectPrevStart;
- while(prectO < prectLineStart)
- {
- prectO->y2 += 1;
- prectO++;
- }
- rects -= crects;
- pReg->data->numRects -= crects;
- }
- }
- }
- if(!fSame)
- irectPrevStart = irectLineStart;
+ for (h = 0; h < pPix->drawable.height; h++) {
+ pw = pwLine;
+ pwLine += nWidth;
+ irectLineStart = rects - FirstRect;
+ /* If the Screen left most bit of the word is set, we're starting in
+ * a box */
+ if (READ(pw) & mask0) {
+ fInBox = TRUE;
+ rx1 = 0;
+ }
+ else
+ fInBox = FALSE;
+ /* Process all words which are fully in the pixmap */
+ pwLineEnd = pw + (width >> FB_SHIFT);
+ for (base = 0; pw < pwLineEnd; base += FB_UNIT) {
+ w = READ(pw++);
+ if (fInBox) {
+ if (!~w)
+ continue;
+ }
+ else {
+ if (!w)
+ continue;
+ }
+ for (ib = 0; ib < FB_UNIT; ib++) {
+ /* If the Screen left most bit of the word is set, we're
+ * starting a box */
+ if (w & mask0) {
+ if (!fInBox) {
+ rx1 = base + ib;
+ /* start new box */
+ fInBox = TRUE;
+ }
+ }
+ else {
+ if (fInBox) {
+ /* end box */
+ ADDRECT(pReg, rects, FirstRect,
+ rx1, h, base + ib, h + 1);
+ fInBox = FALSE;
+ }
+ }
+ /* Shift the word VISUALLY left one. */
+ w = FbScrLeft(w, 1);
+ }
+ }
+ if (width & FB_MASK) {
+ /* Process final partial word on line */
+ w = READ(pw++);
+ for (ib = 0; ib < (width & FB_MASK); ib++) {
+ /* If the Screen left most bit of the word is set, we're
+ * starting a box */
+ if (w & mask0) {
+ if (!fInBox) {
+ rx1 = base + ib;
+ /* start new box */
+ fInBox = TRUE;
+ }
+ }
+ else {
+ if (fInBox) {
+ /* end box */
+ ADDRECT(pReg, rects, FirstRect,
+ rx1, h, base + ib, h + 1);
+ fInBox = FALSE;
+ }
+ }
+ /* Shift the word VISUALLY left one. */
+ w = FbScrLeft(w, 1);
+ }
+ }
+ /* If scanline ended with last bit set, end the box */
+ if (fInBox) {
+ ADDRECT(pReg, rects, FirstRect,
+ rx1, h, base + (width & FB_MASK), h + 1);
+ }
+ /* if all rectangles on this line have the same x-coords as
+ * those on the previous line, then add 1 to all the previous y2s and
+ * throw away all the rectangles from this line
+ */
+ fSame = FALSE;
+ if (irectPrevStart != -1) {
+ crects = irectLineStart - irectPrevStart;
+ if (crects == ((rects - FirstRect) - irectLineStart)) {
+ prectO = FirstRect + irectPrevStart;
+ prectN = prectLineStart = FirstRect + irectLineStart;
+ fSame = TRUE;
+ while (prectO < prectLineStart) {
+ if ((prectO->x1 != prectN->x1) ||
+ (prectO->x2 != prectN->x2)) {
+ fSame = FALSE;
+ break;
+ }
+ prectO++;
+ prectN++;
+ }
+ if (fSame) {
+ prectO = FirstRect + irectPrevStart;
+ while (prectO < prectLineStart) {
+ prectO->y2 += 1;
+ prectO++;
+ }
+ rects -= crects;
+ pReg->data->numRects -= crects;
+ }
+ }
+ }
+ if (!fSame)
+ irectPrevStart = irectLineStart;
}
if (!pReg->data->numRects)
- pReg->extents.x1 = pReg->extents.x2 = 0;
- else
- {
- pReg->extents.y1 = RegionBoxptr(pReg)->y1;
- pReg->extents.y2 = RegionEnd(pReg)->y2;
- if (pReg->data->numRects == 1)
- {
- free(pReg->data);
- pReg->data = (RegDataPtr)NULL;
- }
+ pReg->extents.x1 = pReg->extents.x2 = 0;
+ else {
+ pReg->extents.y1 = RegionBoxptr(pReg)->y1;
+ pReg->extents.y2 = RegionEnd(pReg)->y2;
+ if (pReg->data->numRects == 1) {
+ free(pReg->data);
+ pReg->data = (RegDataPtr) NULL;
+ }
}
fbFinishAccess(&pPix->drawable);
#ifdef DEBUG
if (!RegionIsValid(pReg))
- FatalError("Assertion failed file %s, line %d: expr\n", __FILE__, __LINE__);
+ FatalError("Assertion failed file %s, line %d: expr\n", __FILE__,
+ __LINE__);
#endif
return pReg;
}
@@ -328,63 +307,62 @@ fbPixmapToRegion(PixmapPtr pPix)
#endif
static Bool
-fbValidateBits (FbStip *bits, int stride, FbStip data)
+fbValidateBits(FbStip * bits, int stride, FbStip data)
{
- while (stride--)
- {
- if (*bits != data)
- {
+ while (stride--) {
+ if (*bits != data) {
#ifdef WIN32
- NCD_DEBUG ((DEBUG_FAILURE, "fdValidateBits failed at 0x%x (is 0x%x want 0x%x)",
- bits, *bits, data));
+ NCD_DEBUG((DEBUG_FAILURE,
+ "fdValidateBits failed at 0x%x (is 0x%x want 0x%x)",
+ bits, *bits, data));
#else
- fprintf (stderr, "fbValidateBits failed\n");
+ fprintf(stderr, "fbValidateBits failed\n");
#endif
- return FALSE;
- }
- bits++;
+ return FALSE;
+ }
+ bits++;
}
}
void
-fbValidateDrawable (DrawablePtr pDrawable)
+fbValidateDrawable(DrawablePtr pDrawable)
{
- FbStip *bits, *first, *last;
- int stride, bpp;
- int xoff, yoff;
- int height;
- Bool failed;
-
+ FbStip *bits, *first, *last;
+ int stride, bpp;
+ int xoff, yoff;
+ int height;
+ Bool failed;
+
if (pDrawable->type != DRAWABLE_PIXMAP)
- pDrawable = (DrawablePtr) fbGetWindowPixmap(pDrawable);
+ pDrawable = (DrawablePtr) fbGetWindowPixmap(pDrawable);
fbGetStipDrawable(pDrawable, bits, stride, bpp, xoff, yoff);
first = bits - stride;
last = bits + stride * pDrawable->height;
- if (!fbValidateBits (first, stride, FB_HEAD_BITS) ||
- !fbValidateBits (last, stride, FB_TAIL_BITS))
- fbInitializeDrawable(pDrawable);
- fbFinishAccess (pDrawable);
+ if (!fbValidateBits(first, stride, FB_HEAD_BITS) ||
+ !fbValidateBits(last, stride, FB_TAIL_BITS))
+ fbInitializeDrawable(pDrawable);
+ fbFinishAccess(pDrawable);
}
void
-fbSetBits (FbStip *bits, int stride, FbStip data)
+fbSetBits(FbStip * bits, int stride, FbStip data)
{
while (stride--)
- *bits++ = data;
+ *bits++ = data;
}
void
-fbInitializeDrawable (DrawablePtr pDrawable)
+fbInitializeDrawable(DrawablePtr pDrawable)
{
- FbStip *bits, *first, *last;
- int stride, bpp;
- int xoff, yoff;
-
+ FbStip *bits, *first, *last;
+ int stride, bpp;
+ int xoff, yoff;
+
fbGetStipDrawable(pDrawable, bits, stride, bpp, xoff, yoff);
first = bits - stride;
last = bits + stride * pDrawable->height;
- fbSetBits (first, stride, FB_HEAD_BITS);
- fbSetBits (last, stride, FB_TAIL_BITS);
- fbFinishAccess (pDrawable);
+ fbSetBits(first, stride, FB_HEAD_BITS);
+ fbSetBits(last, stride, FB_TAIL_BITS);
+ fbFinishAccess(pDrawable);
}
-#endif /* FB_DEBUG */
+#endif /* FB_DEBUG */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 10:51:50 +0000