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Authors: Ove Kaaven <ovek@transgaming.com>, Gavriel State <gav@transgaming.com> 

More DIB section copy-blitting improvements: Handle 8bpp DIBs, DC
mapping modes, and clipping. Take advantage of the DIBsection's
XShmImage mechanism to get a really fast blit to the display.
This commit is contained in:
Alexandre Julliard 2000-12-22 01:07:57 +00:00
parent 188002fe71
commit 3f75eaacdc
3 changed files with 124 additions and 31 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
graphics/x11drv/bitblt.c
View File

@ -1490,6 +1490,7 @@ BOOL X11DRV_BitBlt( DC *dcDst, INT xDst, INT yDst,
struct StretchBlt_params params;
BOOL result = FALSE;
INT sSrc, sDst;
RECT visRectDst, visRectSrc;
if (((rop >> 16) & 0x55) == ((rop >> 17) & 0x55)) {
/* FIXME: seems the ROP doesn't include destination;
@ -1499,29 +1500,36 @@ BOOL X11DRV_BitBlt( DC *dcDst, INT xDst, INT yDst,
}
sDst = X11DRV_LockDIBSection( dcDst, DIB_Status_None, FALSE );
sSrc = X11DRV_LockDIBSection( dcSrc, DIB_Status_None, FALSE );
if ((sSrc == DIB_Status_AppMod) && (rop == SRCCOPY)) {
BITMAPOBJ *bmp;
BOOL done = FALSE;
/* do everything ourselves; map coordinates */
xSrc = dcSrc->DCOrgX + XLPTODP( dcSrc, xSrc );
ySrc = dcSrc->DCOrgY + YLPTODP( dcSrc, ySrc );
xDst = dcDst->DCOrgX + XLPTODP( dcDst, xDst );
yDst = dcDst->DCOrgY + YLPTODP( dcDst, yDst );
width = MulDiv(width, dcDst->vportExtX, dcDst->wndExtX);
height = MulDiv(height, dcDst->vportExtY, dcDst->wndExtY);
/* Perform basic clipping */
if (!BITBLT_GetVisRectangles( dcDst, xDst, yDst, width, height,
dcSrc, xSrc, ySrc, width, height,
&visRectSrc, &visRectDst ))
goto END;
xSrc = visRectSrc.left;
ySrc = visRectSrc.top;
xDst = visRectDst.left;
yDst = visRectDst.top;
width = visRectDst.right - visRectDst.left;
height = visRectDst.bottom - visRectDst.top;
if (sDst == DIB_Status_AppMod) {
FIXME("potential optimization - client-side DIB copy\n");
}
X11DRV_CoerceDIBSection( dcDst, DIB_Status_GdiMod, FALSE );
bmp = (BITMAPOBJ *)GDI_GetObjPtr( dcSrc->hBitmap, BITMAP_MAGIC );
if (bmp->dib) {
if (bmp->dib->dsBmih.biBitCount > 8) {
if (X11DRV_SetDIBitsToDevice( dcDst, xDst, yDst, width, height, xSrc, ySrc,
0, bmp->dib->dsBm.bmHeight, bmp->dib->dsBm.bmBits,
(BITMAPINFO*)&(bmp->dib->dsBmih), 0))
result = TRUE;
done = TRUE;
}
else FIXME("potential optimization - 8 bpp SetDIBitsToDevice\n");
}
GDI_ReleaseObj( dcSrc->hBitmap );
if (done) goto END;
X11DRV_DIB_CopyDIBSection( dcSrc, dcDst, xSrc, ySrc, xDst, yDst, width, height );
goto END;
}
params.dcDst = dcDst;

111
graphics/x11drv/dib.c
View File

@ -122,10 +122,15 @@ int *X11DRV_DIB_GenColorMap( DC *dc, int *colorMapping,
}
else /* DIB_PAL_COLORS */
{
WORD * index = (WORD *)colorPtr;
if (colorPtr) {
WORD * index = (WORD *)colorPtr;
for (i = start; i < end; i++, index++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( dc, PALETTEINDEX(*index) );
for (i = start; i < end; i++, index++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( dc, PALETTEINDEX(*index) );
} else {
for (i = start; i < end; i++)
colorMapping[i] = X11DRV_PALETTE_ToPhysical( dc, PALETTEINDEX(i) );
}
}
return colorMapping;
@ -142,14 +147,14 @@ int *X11DRV_DIB_BuildColorMap( DC *dc, WORD coloruse, WORD depth,
{
int colors;
BOOL isInfo;
WORD *colorPtr;
const void *colorPtr;
int *colorMapping;
if ((isInfo = (info->bmiHeader.biSize == sizeof(BITMAPINFOHEADER))))
{
colors = info->bmiHeader.biClrUsed;
if (!colors) colors = 1 << info->bmiHeader.biBitCount;
colorPtr = (WORD *)info->bmiColors;
colorPtr = info->bmiColors;
}
else /* assume BITMAPCOREINFO */
{
@ -163,6 +168,9 @@ int *X11DRV_DIB_BuildColorMap( DC *dc, WORD coloruse, WORD depth,
return NULL;
}
/* just so CopyDIBSection doesn't have to create an identity palette */
if (coloruse == (WORD)-1) colorPtr = NULL;
if (!(colorMapping = (int *)HeapAlloc(GetProcessHeap(), 0,
colors * sizeof(int) )))
return NULL;
@ -2684,6 +2692,10 @@ int X11DRV_DIB_SetImageBits( const X11DRV_DIB_IMAGEBITS_DESCR *descr )
break;
}
TRACE("XPutImage(%p,%ld,%p,%p,%d,%d,%d,%d,%d,%d)\n",
display, descr->drawable, descr->gc, bmpImage,
descr->xSrc, descr->ySrc, descr->xDest, descr->yDest,
descr->width, descr->height);
if (descr->useShm)
{
XShmPutImage( display, descr->drawable, descr->gc, bmpImage,
@ -3126,7 +3138,12 @@ static void X11DRV_DIB_DoProtectDIBSection( BITMAPOBJ *bmp, DWORD new_prot )
/***********************************************************************
* X11DRV_DIB_DoUpdateDIBSection
*/
static void X11DRV_DIB_DoUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
static void X11DRV_DIB_DoCopyDIBSection(BITMAPOBJ *bmp, BOOL toDIB,
void *colorMap, int nColorMap,
Drawable dest,
DWORD xSrc, DWORD ySrc,
DWORD xDest, DWORD yDest,
DWORD width, DWORD height)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
X11DRV_DIB_IMAGEBITS_DESCR descr;
@ -3138,8 +3155,8 @@ static void X11DRV_DIB_DoUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
descr.dc = NULL;
descr.palentry = NULL;
descr.image = dib->image;
descr.colorMap = (RGBQUAD *)dib->colorMap;
descr.nColorMap = dib->nColorMap;
descr.colorMap = colorMap;
descr.nColorMap = nColorMap;
descr.bits = dib->dibSection.dsBm.bmBits;
descr.depth = bmp->bitmap.bmBitsPixel;
@ -3166,14 +3183,14 @@ static void X11DRV_DIB_DoUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
}
/* Hack for now */
descr.drawable = (Pixmap)bmp->physBitmap;
descr.drawable = dest;
descr.gc = BITMAP_GC(bmp);
descr.xSrc = 0;
descr.ySrc = 0;
descr.xDest = 0;
descr.yDest = 0;
descr.width = bmp->bitmap.bmWidth;
descr.height = bmp->bitmap.bmHeight;
descr.xSrc = xSrc;
descr.ySrc = ySrc;
descr.xDest = xDest;
descr.yDest = yDest;
descr.width = width;
descr.height = height;
#ifdef HAVE_LIBXXSHM
descr.useShm = (dib->shminfo.shmid != -1);
#else
@ -3197,6 +3214,70 @@ static void X11DRV_DIB_DoUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
}
}
/***********************************************************************
* X11DRV_DIB_CopyDIBSection
*/
void X11DRV_DIB_CopyDIBSection(DC *dcSrc, DC *dcDst,
DWORD xSrc, DWORD ySrc,
DWORD xDest, DWORD yDest,
DWORD width, DWORD height)
{
BITMAPOBJ *bmp;
X11DRV_PDEVICE *physDev = (X11DRV_PDEVICE *)dcDst->physDev;
int nColorMap = 0, *colorMap = NULL;
TRACE("(%p,%p,%ld,%ld,%ld,%ld,%ld,%ld)\n", dcSrc, dcDst,
xSrc, ySrc, xDest, yDest, width, height);
/* this function is meant as an optimization for BitBlt,
* not to be called otherwise */
if (!(dcSrc->flags & DC_MEMORY)) {
ERR("called for non-memory source DC!?\n");
return;
}
bmp = (BITMAPOBJ *)GDI_GetObjPtr( dcSrc->hBitmap, BITMAP_MAGIC );
if (!(bmp && bmp->dib)) {
ERR("called for non-DIBSection!?\n");
GDI_ReleaseObj( dcSrc->hBitmap );
return;
}
/* while BitBlt should already have made sure we only get
* positive values, we should check for oversize values */
if ((xSrc < bmp->bitmap.bmWidth) &&
(ySrc < bmp->bitmap.bmHeight)) {
if (xSrc + width > bmp->bitmap.bmWidth)
width = bmp->bitmap.bmWidth - xSrc;
if (ySrc + height > bmp->bitmap.bmHeight)
height = bmp->bitmap.bmHeight - ySrc;
/* if the source bitmap is 8bpp or less, we're supposed to use the
* DC's palette for color conversion (not the DIB color table) */
if (bmp->dib->dsBm.bmBitsPixel <= 8)
colorMap = X11DRV_DIB_BuildColorMap( dcSrc, (WORD)-1,
bmp->dib->dsBm.bmBitsPixel,
(BITMAPINFO*)&(bmp->dib->dsBmih),
&nColorMap );
/* perform the copy */
X11DRV_DIB_DoCopyDIBSection(bmp, FALSE, colorMap, nColorMap,
physDev->drawable, xSrc, ySrc, xDest, yDest,
width, height);
/* free color mapping */
if (colorMap)
HeapFree(GetProcessHeap(), 0, colorMap);
}
GDI_ReleaseObj( dcSrc->hBitmap );
}
/***********************************************************************
* X11DRV_DIB_DoUpdateDIBSection
*/
static void X11DRV_DIB_DoUpdateDIBSection(BITMAPOBJ *bmp, BOOL toDIB)
{
X11DRV_DIBSECTION *dib = (X11DRV_DIBSECTION *) bmp->dib;
X11DRV_DIB_DoCopyDIBSection(bmp, toDIB, dib->colorMap, dib->nColorMap,
(Drawable)bmp->physBitmap, 0, 0, 0, 0,
bmp->bitmap.bmWidth, bmp->bitmap.bmHeight);
}
/***********************************************************************
* X11DRV_DIB_FaultHandler
*/

4
include/x11drv.h
View File

@ -298,6 +298,10 @@ extern UINT X11DRV_DIB_GetDIBColorTable(struct tagBITMAPOBJ *,struct tagDC*,UINT
extern INT X11DRV_DIB_Coerce(struct tagBITMAPOBJ *,INT,BOOL);
extern INT X11DRV_DIB_Lock(struct tagBITMAPOBJ *,INT,BOOL);
extern void X11DRV_DIB_Unlock(struct tagBITMAPOBJ *,BOOL);
void X11DRV_DIB_CopyDIBSection(DC *dcSrc, DC *dcDst,
DWORD xSrc, DWORD ySrc,
DWORD xDest, DWORD yDest,
DWORD width, DWORD height);
/**************************************************************************
* X11 GDI driver