* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-/* $Id$ */
+
#include <w32k.h>
+#define NDEBUG
+#include <debug.h>
+
VOID
DIB_16BPP_PutPixel(SURFOBJ *SurfObj, LONG x, LONG y, ULONG c)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta;
+ PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta;
PWORD addr = (PWORD)byteaddr + x;
*addr = (WORD)c;
ULONG
DIB_16BPP_GetPixel(SURFOBJ *SurfObj, LONG x, LONG y)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta;
+ PBYTE byteaddr = (PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta;
PWORD addr = (PWORD)byteaddr + x;
return (ULONG)(*addr);
VOID
DIB_16BPP_HLine(SURFOBJ *SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
{
- PBYTE byteaddr = SurfObj->pvScan0 + y * SurfObj->lDelta;
- PWORD addr = (PWORD)byteaddr + x1;
+ PDWORD addr = (PDWORD)((PWORD)((PBYTE)SurfObj->pvScan0 + y * SurfObj->lDelta) + x1);
+
+
+#ifdef _M_IX86
+ /* This is about 10% faster than the generic C code below */
+ LONG Count = x2 - x1;
+
+ __asm__ __volatile__ (
+" cld\n"
+" mov %0, %%eax\n"
+" shl $16, %%eax\n"
+" andl $0xffff, %0\n" /* If the pixel value is "abcd", put "abcdabcd" in %eax */
+" or %0, %%eax\n"
+" mov %2, %%edi\n"
+" test $0x03, %%edi\n" /* Align to fullword boundary */
+" jz 0f\n"
+" stosw\n"
+" dec %1\n"
+" jz 1f\n"
+"0:\n"
+" mov %1,%%ecx\n" /* Setup count of fullwords to fill */
+" shr $1,%%ecx\n"
+" rep stosl\n" /* The actual fill */
+" test $0x01, %1\n" /* One left to do at the right side? */
+" jz 1f\n"
+" stosw\n"
+"1:\n"
+ : /* no output */
+ : "r"(c), "r"(Count), "m"(addr)
+ : "%eax", "%ecx", "%edi");
+#else /* _M_IX86 */
LONG cx = x1;
+ DWORD cc;
- while(cx < x2) {
- *addr = (WORD)c;
- ++addr;
- ++cx;
+ if (0 != (cx & 0x01)) {
+ *((PWORD) addr) = c;
+ cx++;
+ addr = (PDWORD)((PWORD)(addr) + 1);
}
+ cc = ((c & 0xffff) << 16) | (c & 0xffff);
+ while(cx + 1 < x2) {
+ *addr++ = cc;
+ cx += 2;
+ }
+ if (cx < x2) {
+ *((PWORD) addr) = c;
+ }
+#endif /* _M_IX86 */
}
+
VOID
DIB_16BPP_VLine(SURFOBJ *SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
{
+#ifdef _M_IX86
+ asm volatile(
+ " testl %2, %2" "\n\t"
+ " jle 2f" "\n\t"
+ " movl %2, %%ecx" "\n\t"
+ " shrl $2, %2" "\n\t"
+ " andl $3, %%ecx" "\n\t"
+ " jz 1f" "\n\t"
+ "0:" "\n\t"
+ " movw %%ax, (%0)" "\n\t"
+ " addl %1, %0" "\n\t"
+ " decl %%ecx" "\n\t"
+ " jnz 0b" "\n\t"
+ " testl %2, %2" "\n\t"
+ " jz 2f" "\n\t"
+ "1:" "\n\t"
+ " movw %%ax, (%0)" "\n\t"
+ " addl %1, %0" "\n\t"
+ " movw %%ax, (%0)" "\n\t"
+ " addl %1, %0" "\n\t"
+ " movw %%ax, (%0)" "\n\t"
+ " addl %1, %0" "\n\t"
+ " movw %%ax, (%0)" "\n\t"
+ " addl %1, %0" "\n\t"
+ " decl %2" "\n\t"
+ " jnz 1b" "\n\t"
+ "2:" "\n\t"
+ : /* no output */
+ : "r"((PBYTE)SurfObj->pvScan0 + (y1 * SurfObj->lDelta) + (x * sizeof (WORD))),
+ "r"(SurfObj->lDelta), "r"(y2 - y1), "a"(c)
+ : "cc", "memory", "%ecx");
+#else
PBYTE byteaddr = SurfObj->pvScan0 + y1 * SurfObj->lDelta;
PWORD addr = (PWORD)byteaddr + x;
LONG lDelta = SurfObj->lDelta;
byteaddr += lDelta;
addr = (PWORD)byteaddr;
}
+#endif
}
BOOLEAN
LONG i, j, sx, sy, xColor, f1;
PBYTE SourceBits, DestBits, SourceLine, DestLine;
PBYTE SourceBits_4BPP, SourceLine_4BPP;
- DestBits = BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;
+ DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + (BltInfo->DestRect.top * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;
switch(BltInfo->SourceSurface->iBitmapFormat)
{
break;
case BMF_4BPP:
- SourceBits_4BPP = BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + (BltInfo->SourcePoint.x >> 1);
+ SourceBits_4BPP = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + (BltInfo->SourcePoint.x >> 1);
for (j=BltInfo->DestRect.top; j<BltInfo->DestRect.bottom; j++)
{
break;
case BMF_8BPP:
- SourceLine = BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + BltInfo->SourcePoint.x;
DestLine = DestBits;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
{
- SourceBits = BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
+ SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
RtlMoveMemory(DestBits, SourceBits, 2 * (BltInfo->DestRect.right - BltInfo->DestRect.left));
}
else
{
- SourceBits = BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
- DestBits = BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;
+ SourceBits = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
+ DestBits = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;
for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
{
RtlMoveMemory(DestBits, SourceBits, 2 * (BltInfo->DestRect.right - BltInfo->DestRect.left));
{
if (BltInfo->DestRect.top < BltInfo->SourcePoint.y)
{
- SourceLine = BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
DestLine = DestBits;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
{
}
else
{
- SourceLine = BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
- DestLine = BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + ((BltInfo->SourcePoint.y + BltInfo->DestRect.bottom - BltInfo->DestRect.top - 1) * BltInfo->SourceSurface->lDelta) + 2 * BltInfo->SourcePoint.x;
+ DestLine = (PBYTE)BltInfo->DestSurface->pvScan0 + ((BltInfo->DestRect.bottom - 1) * BltInfo->DestSurface->lDelta) + 2 * BltInfo->DestRect.left;
for (j = BltInfo->DestRect.bottom - 1; BltInfo->DestRect.top <= j; j--)
{
SourceBits = SourceLine;
break;
case BMF_24BPP:
- SourceLine = BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 3 * BltInfo->SourcePoint.x;
DestLine = DestBits;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
break;
case BMF_32BPP:
- SourceLine = BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
+ SourceLine = (PBYTE)BltInfo->SourceSurface->pvScan0 + (BltInfo->SourcePoint.y * BltInfo->SourceSurface->lDelta) + 4 * BltInfo->SourcePoint.x;
DestLine = DestBits;
for (j = BltInfo->DestRect.top; j < BltInfo->DestRect.bottom; j++)
return TRUE;
}
+/* Optimize for bitBlt */
BOOLEAN
-DIB_16BPP_BitBlt(PBLTINFO BltInfo)
+DIB_16BPP_ColorFill(SURFOBJ* DestSurface, RECTL* DestRect, ULONG color)
{
- ULONG DestX, DestY;
- ULONG SourceX, SourceY;
- ULONG PatternY = 0;
- ULONG Dest, Source = 0, Pattern = 0;
- BOOL UsesSource;
- BOOL UsesPattern;
- PULONG DestBits;
- ULONG RoundedRight;
-
- UsesSource = ROP_USES_SOURCE(BltInfo->Rop4);
- UsesPattern = ROP_USES_PATTERN(BltInfo->Rop4);
-
- RoundedRight = BltInfo->DestRect.right -
- ((BltInfo->DestRect.right - BltInfo->DestRect.left) & 0x1);
- SourceY = BltInfo->SourcePoint.y;
- DestBits = (PULONG)(
- BltInfo->DestSurface->pvScan0 +
- (BltInfo->DestRect.left << 1) +
- BltInfo->DestRect.top * BltInfo->DestSurface->lDelta);
-
- if (UsesPattern)
- {
- if (BltInfo->PatternSurface)
- {
- PatternY = (BltInfo->DestRect.top + BltInfo->BrushOrigin.y) %
- BltInfo->PatternSurface->sizlBitmap.cy;
- }
- else
- {
- Pattern = BltInfo->Brush->iSolidColor |
- (BltInfo->Brush->iSolidColor << 16);
- }
- }
-
- for (DestY = BltInfo->DestRect.top; DestY < BltInfo->DestRect.bottom; DestY++)
- {
- SourceX = BltInfo->SourcePoint.x;
-
- for (DestX = BltInfo->DestRect.left; DestX < RoundedRight; DestX += 2, DestBits++, SourceX += 2)
- {
- Dest = *DestBits;
-
- if (UsesSource)
- {
- Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
- Source |= DIB_GetSource(BltInfo->SourceSurface, SourceX + 1, SourceY, BltInfo->XlateSourceToDest) << 16;
- }
-
- if (BltInfo->PatternSurface)
- {
- Pattern = DIB_GetSource(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY, BltInfo->XlatePatternToDest);
- Pattern |= DIB_GetSource(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x + 1) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY, BltInfo->XlatePatternToDest) << 16;
- }
-
- *DestBits = DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern);
- }
-
- if (DestX < BltInfo->DestRect.right)
- {
- Dest = *((PUSHORT)DestBits);
-
- if (UsesSource)
- {
- Source = DIB_GetSource(BltInfo->SourceSurface, SourceX, SourceY, BltInfo->XlateSourceToDest);
- }
-
- if (BltInfo->PatternSurface)
- {
- Pattern = DIB_GetSource(BltInfo->PatternSurface, (DestX + BltInfo->BrushOrigin.x) % BltInfo->PatternSurface->sizlBitmap.cx, PatternY, BltInfo->XlatePatternToDest);
- }
-
- DIB_16BPP_PutPixel(BltInfo->DestSurface, DestX, DestY, DIB_DoRop(BltInfo->Rop4, Dest, Source, Pattern) & 0xFFFF);
- DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
- }
-
- SourceY++;
- if (BltInfo->PatternSurface)
- {
- PatternY++;
- PatternY %= BltInfo->PatternSurface->sizlBitmap.cy;
- }
- DestBits = (PULONG)(
- (ULONG_PTR)DestBits -
- ((BltInfo->DestRect.right - BltInfo->DestRect.left) << 1) +
- BltInfo->DestSurface->lDelta);
- }
+ ULONG DestY;
+
+#ifdef _M_IX86
+ /* This is about 10% faster than the generic C code below */
+ ULONG delta = DestSurface->lDelta;
+ ULONG width = (DestRect->right - DestRect->left) ;
+ PULONG pos = (PULONG) ((PBYTE)DestSurface->pvScan0 + DestRect->top * delta + (DestRect->left<<1));
+ color = (color&0xffff); /* If the color value is "abcd", put "abcdabcd" into color */
+ color += (color<<16);
- return TRUE;
-}
+ for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
+ {
+ __asm__ __volatile__ (
+ " cld\n"
+ " mov %1,%%ebx\n"
+ " mov %2,%%edi\n"
+ " test $0x03, %%edi\n" /* Align to fullword boundary */
+ " jz .FL1\n"
+ " stosw\n"
+ " dec %%ebx\n"
+ " jz .FL2\n"
+ ".FL1:\n"
+ " mov %%ebx,%%ecx\n" /* Setup count of fullwords to fill */
+ " shr $1,%%ecx\n"
+ " rep stosl\n" /* The actual fill */
+ " test $0x01, %%ebx\n" /* One left to do at the right side? */
+ " jz .FL2\n"
+ " stosw\n"
+ ".FL2:\n"
+ :
+ : "a" (color), "r" (width), "m" (pos)
+ : "%ecx", "%ebx", "%edi");
+ pos =(PULONG)((ULONG_PTR)pos + delta);
+ }
+#else /* _M_IX86 */
+ for (DestY = DestRect->top; DestY< DestRect->bottom; DestY++)
+ {
+ DIB_16BPP_HLine (DestSurface, DestRect->left, DestRect->right, DestY, color);
+ }
+#endif
+return TRUE;
+}
/*
=======================================
Stretching functions goes below
typedef unsigned short PIXEL;
/* 16-bit HiColor (565 format) */
-inline PIXEL average16(PIXEL a, PIXEL b)
+__inline PIXEL average16(PIXEL a, PIXEL b)
{
// This one doesn't work
/*
}*/ /* if */
// This one should be correct, but it's too long
-/*
+/*
unsigned char r1, g1, b1, r2, g2, b2, rr, gr, br;
unsigned short res;
-
+
r1 = (a & 0xF800) >> 11;
g1 = (a & 0x7E0) >> 5;
b1 = (a & 0x1F);
-
+
r2 = (b & 0xF800) >> 11;
g2 = (b & 0x7E0) >> 5;
b2 = (b & 0x1F);
-
+
rr = (r1+r2) / 2;
gr = (g1+g2) / 2;
br = (b1+b2) / 2;
-
+
res = (rr << 11) + (gr << 5) + br;
return res;
UINT DestY, RECTL *DestRect)
{
LONG Left, Right;
-
+
while (ClipSpans[*SpanIndex].Y < DestY
|| (ClipSpans[*SpanIndex].Y == DestY
&& ClipSpans[*SpanIndex].X + ClipSpans[*SpanIndex].Width < DestRect->left))
PIXEL *ScanLine, *ScanLineAhead;
PIXEL *PrevSource = NULL;
PIXEL *PrevSourceAhead = NULL;
- PIXEL *Target = (PIXEL *) (DestSurf->pvScan0 + (DestRect->top * DestSurf->lDelta) + 2 * DestRect->left);
- PIXEL *Source = (PIXEL *) (SourceSurf->pvScan0 + (SourceRect->top * SourceSurf->lDelta) + 2 * SourceRect->left);
+ PIXEL *Target = (PIXEL *) ((PBYTE)DestSurf->pvScan0 + (DestRect->top * DestSurf->lDelta) + 2 * DestRect->left);
+ PIXEL *Source = (PIXEL *) ((PBYTE)SourceSurf->pvScan0 + (SourceRect->top * SourceSurf->lDelta) + 2 * SourceRect->left);
PSPAN ClipSpans;
UINT ClipSpansCount;
UINT SpanIndex;
} /* if */
PrevSource = Source;
} /* if */
-
+
if (E >= Mid && PrevSourceAhead != (PIXEL *)((BYTE *)Source + SourceSurf->lDelta)) {
int x;
ScaleLineAvg16(ScanLineAhead, (PIXEL *)((BYTE *)Source + SourceSurf->lDelta), SourceRect->right - SourceRect->left, DestRect->right - DestRect->left);
return TRUE;
}
+/* check clib region */
+BOOLEAN CheckClipRegion(CLIPOBJ *ClipRegion, RECTL* DestRect, int DesX, int DesY)
+{
+ BOOLEAN status = FALSE;
+ PSPAN ClipSpans;
+ UINT ClipSpansCount;
+ UINT SpanIndex = 0;
+
+ if (! ClipobjToSpans(&ClipSpans, &ClipSpansCount, ClipRegion, DestRect))
+ {
+ return FALSE;
+ }
+
+ if (0 == ClipSpansCount)
+ {
+ /* No clip spans == empty clipping region, everything clipped away */
+ ASSERT(NULL == ClipSpans);
+ return FALSE;
+ }
+
+ for (SpanIndex=0; SpanIndex<ClipSpansCount;SpanIndex++)
+ {
+ if (ClipSpans[SpanIndex].Y < DesY)
+ status = FALSE;
+
+ if (ClipSpans[SpanIndex].Y+ClipSpans[SpanIndex].Height > DesY)
+ status = FALSE;
+
+ if (ClipSpans[SpanIndex].X > DesX)
+ status = FALSE;
+
+ if (ClipSpans[SpanIndex].X+ClipSpans[SpanIndex].Width > DesX)
+ status = FALSE;
+ }
+
+ return status;
+}
+
+
//NOTE: If you change something here, please do the same in other dibXXbpp.c files!
BOOLEAN DIB_16BPP_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
RECTL* DestRect, RECTL *SourceRect,
CLIPOBJ *ClipRegion, XLATEOBJ *ColorTranslation,
ULONG Mode)
{
+ LONG SrcSizeY;
+ LONG SrcSizeX;
+ LONG DesSizeY;
+ LONG DesSizeX;
+ LONG sx;
+ LONG sy;
+ LONG DesX;
+ LONG DesY;
+ LONG color;
+ PULONG DestBits;
+ LONG DifflDelta;
+
+
DPRINT("DIB_16BPP_StretchBlt: Source BPP: %u, srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
BitsPerFormat(SourceSurf->iBitmapFormat), SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
+ SrcSizeY = SourceRect->bottom - SourceRect->top;
+ SrcSizeX = SourceRect->right - SourceRect->left;
+
+ DesSizeY = DestRect->bottom - DestRect->top;
+ DesSizeX = DestRect->right - DestRect->left;
+
switch(SourceSurf->iBitmapFormat)
{
- case BMF_1BPP:
- case BMF_4BPP:
- case BMF_8BPP:
- case BMF_24BPP:
- case BMF_32BPP:
- /* Not implemented yet. */
- return FALSE;
- break;
+
+ case BMF_1BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ DestBits = (PULONG)((PBYTE)DestSurf->pvScan0 + (DestRect->left << 1) +
+ DestRect->top * DestSurf->lDelta);
+
+ DifflDelta = DestSurf->lDelta - (DesSizeX << 1);
+
+ for (DesY=0; DesY<DesSizeY; DesY++)
+ {
+ sy = ((DesY * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=0; DesX<DesSizeX; DesX++)
+ {
+
+ sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
+
+ if(DIB_1BPP_GetPixel(SourceSurf, sx, sy) == 0)
+ {
+ *DestBits = XLATEOBJ_iXlate(ColorTranslation, 0);
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
+ }
+ else
+ {
+ *DestBits = XLATEOBJ_iXlate(ColorTranslation, 1);
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
+ }
+ }
+ DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
+ }
+ break;
+
+ case BMF_4BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ DestBits = (PULONG)((PBYTE)DestSurf->pvScan0 + (DestRect->left << 1) +
+ DestRect->top * DestSurf->lDelta);
+
+ DifflDelta = DestSurf->lDelta - (DesSizeX << 1);
+
+ for (DesY=0; DesY<DesSizeY; DesY++)
+ {
+ sy = ((DesY * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=0; DesX<DesSizeX; DesX++)
+ {
+
+ sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_4BPP_GetPixel(SourceSurf, sx, sy);
+
+ *DestBits = XLATEOBJ_iXlate(ColorTranslation, color);
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
+ }
+ DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
+ }
+ break;
+
+ case BMF_8BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ DestBits = (PULONG)((PBYTE)DestSurf->pvScan0 + (DestRect->left << 1) +
+ DestRect->top * DestSurf->lDelta);
+
+ DifflDelta = DestSurf->lDelta - (DesSizeX << 1);
+
+ for (DesY=0; DesY<DesSizeY; DesY++)
+ {
+ sy = ((DesY * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=0; DesX<DesSizeX; DesX++)
+ {
+
+ sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_8BPP_GetPixel(SourceSurf, sx, sy);
+
+ *DestBits = XLATEOBJ_iXlate(ColorTranslation, color);
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
+ }
+ DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
+ }
+ break;
+
+
+ case BMF_24BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ DestBits = (PULONG)((PBYTE)DestSurf->pvScan0 + (DestRect->left << 1) +
+ DestRect->top * DestSurf->lDelta);
+
+ DifflDelta = DestSurf->lDelta - (DesSizeX << 1);
+
+ for (DesY=0; DesY<DesSizeY; DesY++)
+ {
+ sy = ((DesY * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=0; DesX<DesSizeX; DesX++)
+ {
+
+ sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_24BPP_GetPixel(SourceSurf, sx, sy);
+
+ *DestBits = XLATEOBJ_iXlate(ColorTranslation, color);
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
+ }
+ DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
+ }
+ break;
+
+ case BMF_32BPP:
+ /* FIXME : MaskOrigin, BrushOrigin, ClipRegion, Mode ? */
+ /* This is a reference implementation, it hasn't been optimized for speed */
+
+ DestBits = (PULONG)((PBYTE)DestSurf->pvScan0 + (DestRect->left << 1) +
+ DestRect->top * DestSurf->lDelta);
+
+ DifflDelta = DestSurf->lDelta - (DesSizeX << 1);
+
+ for (DesY=0; DesY<DesSizeY; DesY++)
+ {
+ sy = ((DesY * SrcSizeY) / DesSizeY) + SourceRect->top;
+
+ for (DesX=0; DesX<DesSizeX; DesX++)
+ {
+
+ sx = ((DesX * SrcSizeX) / DesSizeX) + SourceRect->left;
+ color = DIB_32BPP_GetPixel(SourceSurf, sx, sy);
+
+ *DestBits = XLATEOBJ_iXlate(ColorTranslation, color);
+ DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
+ }
+ DestBits = (PULONG)((ULONG_PTR)DestBits + DifflDelta);
+ }
+ break;
case BMF_16BPP:
return ScaleRectAvg16(DestSurf, SourceSurf, DestRect, SourceRect, MaskOrigin, BrushOrigin,
ClipRegion, ColorTranslation, Mode);
break;
-
+
default:
DPRINT1("DIB_16BPP_StretchBlt: Unhandled Source BPP: %u\n", BitsPerFormat(SourceSurf->iBitmapFormat));
return FALSE;
}
-
-
+
+
return TRUE;
}
-BOOLEAN
+BOOLEAN
DIB_16BPP_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
RECTL* DestRect, POINTL *SourcePoint,
XLATEOBJ *ColorTranslation, ULONG iTransColor)
{
ULONG RoundedRight, X, Y, SourceX, SourceY, Source, wd, Dest;
ULONG *DestBits;
-
+
RoundedRight = DestRect->right - ((DestRect->right - DestRect->left) & 0x1);
SourceY = SourcePoint->y;
- DestBits = (ULONG*)(DestSurf->pvScan0 +
+ DestBits = (ULONG*)((PBYTE)DestSurf->pvScan0 +
(DestRect->left << 1) +
DestRect->top * DestSurf->lDelta);
wd = DestSurf->lDelta - ((DestRect->right - DestRect->left) << 1);
-
+
for(Y = DestRect->top; Y < DestRect->bottom; Y++)
{
SourceX = SourcePoint->x;
for(X = DestRect->left; X < RoundedRight; X += 2, DestBits++, SourceX += 2)
{
Dest = *DestBits;
-
+
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
if(Source != iTransColor)
{
*DestBits = Dest;
}
-
+
if(X < DestRect->right)
{
Source = DIB_GetSourceIndex(SourceSurf, SourceX, SourceY);
{
*((USHORT*)DestBits) = (USHORT)XLATEOBJ_iXlate(ColorTranslation, Source);
}
-
+
DestBits = (PULONG)((ULONG_PTR)DestBits + 2);
}
SourceY++;
DestBits = (ULONG*)((ULONG_PTR)DestBits + wd);
}
-
+
return TRUE;
}
+typedef union {
+ ULONG ul;
+ struct {
+ UCHAR red;
+ UCHAR green;
+ UCHAR blue;
+ UCHAR alpha;
+ } col;
+} NICEPIXEL32;
+
+typedef union {
+ USHORT us;
+ struct {
+ USHORT red:5,
+ green:6,
+ blue:5;
+ } col;
+} NICEPIXEL16;
+
+STATIC inline UCHAR
+Clamp5(ULONG val)
+{
+ return (val > 31) ? 31 : val;
+}
+
+STATIC inline UCHAR
+Clamp6(ULONG val)
+{
+ return (val > 63) ? 63 : val;
+}
+
+BOOLEAN
+DIB_16BPP_AlphaBlend(SURFOBJ* Dest, SURFOBJ* Source, RECTL* DestRect,
+ RECTL* SourceRect, CLIPOBJ* ClipRegion,
+ XLATEOBJ* ColorTranslation, BLENDOBJ* BlendObj)
+{
+ INT Rows, Cols, SrcX, SrcY;
+ register PUSHORT Dst;
+ ULONG DstDelta;
+ BLENDFUNCTION BlendFunc;
+ register NICEPIXEL16 DstPixel;
+ register NICEPIXEL32 SrcPixel;
+ UCHAR Alpha, SrcBpp;
+
+ DPRINT("DIB_16BPP_AlphaBlend: srcRect: (%d,%d)-(%d,%d), dstRect: (%d,%d)-(%d,%d)\n",
+ SourceRect->left, SourceRect->top, SourceRect->right, SourceRect->bottom,
+ DestRect->left, DestRect->top, DestRect->right, DestRect->bottom);
+
+ ASSERT(DestRect->bottom - DestRect->top == SourceRect->bottom - SourceRect->top &&
+ DestRect->right - DestRect->left == SourceRect->right - SourceRect->left);
+
+ BlendFunc = BlendObj->BlendFunction;
+ if (BlendFunc.BlendOp != AC_SRC_OVER)
+ {
+ DPRINT1("BlendOp != AC_SRC_OVER\n");
+ return FALSE;
+ }
+ if (BlendFunc.BlendFlags != 0)
+ {
+ DPRINT1("BlendFlags != 0\n");
+ return FALSE;
+ }
+ if ((BlendFunc.AlphaFormat & ~AC_SRC_ALPHA) != 0)
+ {
+ DPRINT1("Unsupported AlphaFormat (0x%x)\n", BlendFunc.AlphaFormat);
+ return FALSE;
+ }
+ if ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0 &&
+ BitsPerFormat(Source->iBitmapFormat) != 32)
+ {
+ DPRINT1("Source bitmap must be 32bpp when AC_SRC_ALPHA is set\n");
+ return FALSE;
+ }
+
+ Dst = (PUSHORT)((ULONG_PTR)Dest->pvScan0 + (DestRect->top * Dest->lDelta) +
+ (DestRect->left << 1));
+ DstDelta = Dest->lDelta - ((DestRect->right - DestRect->left) << 1);
+ SrcBpp = BitsPerFormat(Source->iBitmapFormat);
+
+ Rows = DestRect->bottom - DestRect->top;
+ SrcY = SourceRect->top;
+ while (--Rows >= 0)
+ {
+ Cols = DestRect->right - DestRect->left;
+ SrcX = SourceRect->left;
+ while (--Cols >= 0)
+ {
+ if (SrcBpp <= 16)
+ {
+ DstPixel.us = DIB_GetSource(Source, SrcX++, SrcY, ColorTranslation);
+ SrcPixel.col.red = (DstPixel.col.red << 3) | (DstPixel.col.red >> 2);
+ SrcPixel.col.green = (DstPixel.col.green << 2) | (DstPixel.col.green >> 4);
+ SrcPixel.col.blue = (DstPixel.col.blue << 3) | (DstPixel.col.blue >> 2);
+ }
+ else
+ {
+ SrcPixel.ul = DIB_GetSourceIndex(Source, SrcX++, SrcY);
+ }
+ SrcPixel.col.red = SrcPixel.col.red * BlendFunc.SourceConstantAlpha / 255;
+ SrcPixel.col.green = SrcPixel.col.green * BlendFunc.SourceConstantAlpha / 255;
+ SrcPixel.col.blue = SrcPixel.col.blue * BlendFunc.SourceConstantAlpha / 255;
+ SrcPixel.col.alpha = (SrcBpp == 32) ? (SrcPixel.col.alpha * BlendFunc.SourceConstantAlpha / 255) : BlendFunc.SourceConstantAlpha;
+
+ Alpha = ((BlendFunc.AlphaFormat & AC_SRC_ALPHA) != 0) ?
+ SrcPixel.col.alpha : BlendFunc.SourceConstantAlpha;
+
+ DstPixel.us = *Dst;
+ DstPixel.col.red = Clamp5(DstPixel.col.red * (255 - Alpha) / 255 + (SrcPixel.col.red >> 3));
+ DstPixel.col.green = Clamp6(DstPixel.col.green * (255 - Alpha) / 255 + (SrcPixel.col.green >> 2));
+ DstPixel.col.blue = Clamp5(DstPixel.col.blue * (255 - Alpha) / 255 + (SrcPixel.col.blue >> 3));
+ *Dst++ = DstPixel.us;
+ }
+ Dst = (PUSHORT)((ULONG_PTR)Dst + DstDelta);
+ SrcY++;
+ }
+
+ return TRUE;
+}
+
/* EOF */
projects / reactos.git / blobdiff