--- /dev/null
+/* $XConsortium: cfb8bit.c,v 1.13 94/09/29 20:33:11 dpw Exp $ */
+/*
+
+Copyright (c) 1989, 1994 X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from the X Consortium.
+
+*/
+
+/*
+ * cfb8bit.c
+ *
+ * 8 bit color frame buffer utility routines
+ */
+
+
+#if PSZ == 8
+
+#include "X.h"
+#include "Xmd.h"
+#include "Xproto.h"
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "regionstr.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+#include "cfb8bit.h"
+
+PixelGroup cfb8StippleMasks[NUM_MASKS] = {
+#if NUM_MASKS == 16
+ 0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
+ 0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
+ 0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
+ 0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff
+#else /* NUM_MASKS == 256 */
+ 0x0000000000000000, 0x00000000000000ff,
+ 0x000000000000ff00, 0x000000000000ffff,
+ 0x0000000000ff0000, 0x0000000000ff00ff,
+ 0x0000000000ffff00, 0x0000000000ffffff,
+ 0x00000000ff000000, 0x00000000ff0000ff,
+ 0x00000000ff00ff00, 0x00000000ff00ffff,
+ 0x00000000ffff0000, 0x00000000ffff00ff,
+ 0x00000000ffffff00, 0x00000000ffffffff,
+ 0x000000ff00000000, 0x000000ff000000ff,
+ 0x000000ff0000ff00, 0x000000ff0000ffff,
+ 0x000000ff00ff0000, 0x000000ff00ff00ff,
+ 0x000000ff00ffff00, 0x000000ff00ffffff,
+ 0x000000ffff000000, 0x000000ffff0000ff,
+ 0x000000ffff00ff00, 0x000000ffff00ffff,
+ 0x000000ffffff0000, 0x000000ffffff00ff,
+ 0x000000ffffffff00, 0x000000ffffffffff,
+ 0x0000ff0000000000, 0x0000ff00000000ff,
+ 0x0000ff000000ff00, 0x0000ff000000ffff,
+ 0x0000ff0000ff0000, 0x0000ff0000ff00ff,
+ 0x0000ff0000ffff00, 0x0000ff0000ffffff,
+ 0x0000ff00ff000000, 0x0000ff00ff0000ff,
+ 0x0000ff00ff00ff00, 0x0000ff00ff00ffff,
+ 0x0000ff00ffff0000, 0x0000ff00ffff00ff,
+ 0x0000ff00ffffff00, 0x0000ff00ffffffff,
+ 0x0000ffff00000000, 0x0000ffff000000ff,
+ 0x0000ffff0000ff00, 0x0000ffff0000ffff,
+ 0x0000ffff00ff0000, 0x0000ffff00ff00ff,
+ 0x0000ffff00ffff00, 0x0000ffff00ffffff,
+ 0x0000ffffff000000, 0x0000ffffff0000ff,
+ 0x0000ffffff00ff00, 0x0000ffffff00ffff,
+ 0x0000ffffffff0000, 0x0000ffffffff00ff,
+ 0x0000ffffffffff00, 0x0000ffffffffffff,
+ 0x00ff000000000000, 0x00ff0000000000ff,
+ 0x00ff00000000ff00, 0x00ff00000000ffff,
+ 0x00ff000000ff0000, 0x00ff000000ff00ff,
+ 0x00ff000000ffff00, 0x00ff000000ffffff,
+ 0x00ff0000ff000000, 0x00ff0000ff0000ff,
+ 0x00ff0000ff00ff00, 0x00ff0000ff00ffff,
+ 0x00ff0000ffff0000, 0x00ff0000ffff00ff,
+ 0x00ff0000ffffff00, 0x00ff0000ffffffff,
+ 0x00ff00ff00000000, 0x00ff00ff000000ff,
+ 0x00ff00ff0000ff00, 0x00ff00ff0000ffff,
+ 0x00ff00ff00ff0000, 0x00ff00ff00ff00ff,
+ 0x00ff00ff00ffff00, 0x00ff00ff00ffffff,
+ 0x00ff00ffff000000, 0x00ff00ffff0000ff,
+ 0x00ff00ffff00ff00, 0x00ff00ffff00ffff,
+ 0x00ff00ffffff0000, 0x00ff00ffffff00ff,
+ 0x00ff00ffffffff00, 0x00ff00ffffffffff,
+ 0x00ffff0000000000, 0x00ffff00000000ff,
+ 0x00ffff000000ff00, 0x00ffff000000ffff,
+ 0x00ffff0000ff0000, 0x00ffff0000ff00ff,
+ 0x00ffff0000ffff00, 0x00ffff0000ffffff,
+ 0x00ffff00ff000000, 0x00ffff00ff0000ff,
+ 0x00ffff00ff00ff00, 0x00ffff00ff00ffff,
+ 0x00ffff00ffff0000, 0x00ffff00ffff00ff,
+ 0x00ffff00ffffff00, 0x00ffff00ffffffff,
+ 0x00ffffff00000000, 0x00ffffff000000ff,
+ 0x00ffffff0000ff00, 0x00ffffff0000ffff,
+ 0x00ffffff00ff0000, 0x00ffffff00ff00ff,
+ 0x00ffffff00ffff00, 0x00ffffff00ffffff,
+ 0x00ffffffff000000, 0x00ffffffff0000ff,
+ 0x00ffffffff00ff00, 0x00ffffffff00ffff,
+ 0x00ffffffffff0000, 0x00ffffffffff00ff,
+ 0x00ffffffffffff00, 0x00ffffffffffffff,
+ 0xff00000000000000, 0xff000000000000ff,
+ 0xff0000000000ff00, 0xff0000000000ffff,
+ 0xff00000000ff0000, 0xff00000000ff00ff,
+ 0xff00000000ffff00, 0xff00000000ffffff,
+ 0xff000000ff000000, 0xff000000ff0000ff,
+ 0xff000000ff00ff00, 0xff000000ff00ffff,
+ 0xff000000ffff0000, 0xff000000ffff00ff,
+ 0xff000000ffffff00, 0xff000000ffffffff,
+ 0xff0000ff00000000, 0xff0000ff000000ff,
+ 0xff0000ff0000ff00, 0xff0000ff0000ffff,
+ 0xff0000ff00ff0000, 0xff0000ff00ff00ff,
+ 0xff0000ff00ffff00, 0xff0000ff00ffffff,
+ 0xff0000ffff000000, 0xff0000ffff0000ff,
+ 0xff0000ffff00ff00, 0xff0000ffff00ffff,
+ 0xff0000ffffff0000, 0xff0000ffffff00ff,
+ 0xff0000ffffffff00, 0xff0000ffffffffff,
+ 0xff00ff0000000000, 0xff00ff00000000ff,
+ 0xff00ff000000ff00, 0xff00ff000000ffff,
+ 0xff00ff0000ff0000, 0xff00ff0000ff00ff,
+ 0xff00ff0000ffff00, 0xff00ff0000ffffff,
+ 0xff00ff00ff000000, 0xff00ff00ff0000ff,
+ 0xff00ff00ff00ff00, 0xff00ff00ff00ffff,
+ 0xff00ff00ffff0000, 0xff00ff00ffff00ff,
+ 0xff00ff00ffffff00, 0xff00ff00ffffffff,
+ 0xff00ffff00000000, 0xff00ffff000000ff,
+ 0xff00ffff0000ff00, 0xff00ffff0000ffff,
+ 0xff00ffff00ff0000, 0xff00ffff00ff00ff,
+ 0xff00ffff00ffff00, 0xff00ffff00ffffff,
+ 0xff00ffffff000000, 0xff00ffffff0000ff,
+ 0xff00ffffff00ff00, 0xff00ffffff00ffff,
+ 0xff00ffffffff0000, 0xff00ffffffff00ff,
+ 0xff00ffffffffff00, 0xff00ffffffffffff,
+ 0xffff000000000000, 0xffff0000000000ff,
+ 0xffff00000000ff00, 0xffff00000000ffff,
+ 0xffff000000ff0000, 0xffff000000ff00ff,
+ 0xffff000000ffff00, 0xffff000000ffffff,
+ 0xffff0000ff000000, 0xffff0000ff0000ff,
+ 0xffff0000ff00ff00, 0xffff0000ff00ffff,
+ 0xffff0000ffff0000, 0xffff0000ffff00ff,
+ 0xffff0000ffffff00, 0xffff0000ffffffff,
+ 0xffff00ff00000000, 0xffff00ff000000ff,
+ 0xffff00ff0000ff00, 0xffff00ff0000ffff,
+ 0xffff00ff00ff0000, 0xffff00ff00ff00ff,
+ 0xffff00ff00ffff00, 0xffff00ff00ffffff,
+ 0xffff00ffff000000, 0xffff00ffff0000ff,
+ 0xffff00ffff00ff00, 0xffff00ffff00ffff,
+ 0xffff00ffffff0000, 0xffff00ffffff00ff,
+ 0xffff00ffffffff00, 0xffff00ffffffffff,
+ 0xffffff0000000000, 0xffffff00000000ff,
+ 0xffffff000000ff00, 0xffffff000000ffff,
+ 0xffffff0000ff0000, 0xffffff0000ff00ff,
+ 0xffffff0000ffff00, 0xffffff0000ffffff,
+ 0xffffff00ff000000, 0xffffff00ff0000ff,
+ 0xffffff00ff00ff00, 0xffffff00ff00ffff,
+ 0xffffff00ffff0000, 0xffffff00ffff00ff,
+ 0xffffff00ffffff00, 0xffffff00ffffffff,
+ 0xffffffff00000000, 0xffffffff000000ff,
+ 0xffffffff0000ff00, 0xffffffff0000ffff,
+ 0xffffffff00ff0000, 0xffffffff00ff00ff,
+ 0xffffffff00ffff00, 0xffffffff00ffffff,
+ 0xffffffffff000000, 0xffffffffff0000ff,
+ 0xffffffffff00ff00, 0xffffffffff00ffff,
+ 0xffffffffffff0000, 0xffffffffffff00ff,
+ 0xffffffffffffff00, 0xffffffffffffffff
+#endif
+};
+
+int cfb8StippleMode, cfb8StippleAlu, cfb8StippleRRop;
+PixelGroup cfb8StippleFg, cfb8StippleBg, cfb8StipplePm;
+PixelGroup cfb8StippleAnd[NUM_MASKS], cfb8StippleXor[NUM_MASKS];
+
+int
+cfb8SetStipple (alu, fg, planemask)
+int alu;
+unsigned long fg, planemask;
+{
+ unsigned long and, xor, rrop;
+ int s;
+ unsigned long c;
+
+ cfb8StippleMode = FillStippled;
+ cfb8StippleAlu = alu;
+ cfb8StippleFg = fg & PMSK;
+ cfb8StipplePm = planemask & PMSK;
+ rrop = cfbReduceRasterOp (alu, fg, planemask, &and, &xor);
+ cfb8StippleRRop = rrop;
+ /*
+ * create the appropriate pixel-fill bits for current
+ * foreground
+ */
+ for (s = 0; s < NUM_MASKS; s++)
+ {
+ c = cfb8StippleMasks[s];
+ cfb8StippleAnd[s] = and | ~c;
+ cfb8StippleXor[s] = xor & c;
+ }
+ return TRUE;
+}
+
+
+int
+cfb8SetOpaqueStipple (alu, fg, bg, planemask)
+int alu;
+unsigned long fg, bg, planemask;
+{
+ unsigned long andfg, xorfg, andbg, xorbg, rropfg, rropbg;
+ int s;
+ unsigned long c;
+
+ cfb8StippleMode = FillOpaqueStippled;
+ cfb8StippleAlu = alu;
+ cfb8StippleFg = fg & PMSK;
+ cfb8StippleBg = bg & PMSK;
+ cfb8StipplePm = planemask & PMSK;
+ rropfg = cfbReduceRasterOp (alu, cfb8StippleFg, cfb8StipplePm, &andfg, &xorfg);
+ rropbg = cfbReduceRasterOp (alu, cfb8StippleBg, cfb8StipplePm, &andbg, &xorbg);
+ if (rropfg == rropbg)
+ cfb8StippleRRop = rropfg;
+ else
+ cfb8StippleRRop = GXset;
+ /*
+ * create the appropriate pixel-fill bits for current
+ * foreground
+ */
+ for (s = 0; s < NUM_MASKS; s++)
+ {
+ c = cfb8StippleMasks[s];
+ cfb8StippleAnd[s] = (andfg | ~c) & (andbg | c);
+ cfb8StippleXor[s] = (xorfg & c) | (xorbg & ~c);
+ }
+ return TRUE;
+}
+
+/*
+ * a grungy little routine. This computes clip masks
+ * for partial character blts. Returns rgnOUT if the
+ * entire character is clipped; returns rgnIN if the entire
+ * character is unclipped; returns rgnPART if a portion of
+ * the character is visible. Computes clip masks for each
+ * longword of the character -- and those with the
+ * contents of the glyph to compute the visible bits.
+ */
+
+#if PGSZ == 32
+#if (BITMAP_BIT_ORDER == MSBFirst)
+PixelGroup cfb8BitLenMasks[PGSZ] = {
+ 0xffffffff, 0x7fffffff, 0x3fffffff, 0x1fffffff,
+ 0x0fffffff, 0x07ffffff, 0x03ffffff, 0x01ffffff,
+ 0x00ffffff, 0x007fffff, 0x003fffff, 0x001fffff,
+ 0x000fffff, 0x0007ffff, 0x0003ffff, 0x0001ffff,
+ 0x0000ffff, 0x00007fff, 0x00003fff, 0x00001fff,
+ 0x00000fff, 0x000007ff, 0x000003ff, 0x000001ff,
+ 0x000000ff, 0x0000007f, 0x0000003f, 0x0000001f,
+ 0x0000000f, 0x00000007, 0x00000003, 0x00000001,
+};
+#else
+PixelGroup cfb8BitLenMasks[PGSZ] = {
+ 0xffffffff, 0xfffffffe, 0xfffffffc, 0xfffffff8,
+ 0xfffffff0, 0xffffffe0, 0xffffffc0, 0xffffff80,
+ 0xffffff00, 0xfffffe00, 0xfffffc00, 0xfffff800,
+ 0xfffff000, 0xffffe000, 0xffffc000, 0xffff8000,
+ 0xffff0000, 0xfffe0000, 0xfffc0000, 0xfff80000,
+ 0xfff00000, 0xffe00000, 0xffc00000, 0xff800000,
+ 0xff000000, 0xfe000000, 0xfc000000, 0xf8000000,
+ 0xf0000000, 0xe0000000, 0xc0000000, 0x80000000,
+};
+#endif /* BITMAP_BIT_ORDER */
+#else /* PGSZ == 64 */
+#if (BITMAP_BIT_ORDER == MSBFirst)
+PixelGroup cfb8BitLenMasks[PGSZ] = {
+ 0xffffffffffffffff, 0x7fffffffffffffff,
+ 0x3fffffffffffffff, 0x1fffffffffffffff,
+ 0x0fffffffffffffff, 0x07ffffffffffffff,
+ 0x03ffffffffffffff, 0x01ffffffffffffff,
+ 0x00ffffffffffffff, 0x007fffffffffffff,
+ 0x003fffffffffffff, 0x001fffffffffffff,
+ 0x000fffffffffffff, 0x0007ffffffffffff,
+ 0x0003ffffffffffff, 0x0001ffffffffffff,
+ 0x0000ffffffffffff, 0x00007fffffffffff,
+ 0x00003fffffffffff, 0x00001fffffffffff,
+ 0x00000fffffffffff, 0x000007ffffffffff,
+ 0x000003ffffffffff, 0x000001ffffffffff,
+ 0x000000ffffffffff, 0x0000007fffffffff,
+ 0x0000003fffffffff, 0x0000001fffffffff,
+ 0x0000000fffffffff, 0x00000007ffffffff,
+ 0x00000003ffffffff, 0x00000001ffffffff,
+ 0x00000000ffffffff, 0x000000007fffffff,
+ 0x000000003fffffff, 0x000000001fffffff,
+ 0x000000000fffffff, 0x0000000007ffffff,
+ 0x0000000003ffffff, 0x0000000001ffffff,
+ 0x0000000000ffffff, 0x00000000007fffff,
+ 0x00000000003fffff, 0x00000000001fffff,
+ 0x00000000000fffff, 0x000000000007ffff,
+ 0x000000000003ffff, 0x000000000001ffff,
+ 0x000000000000ffff, 0x0000000000007fff,
+ 0x0000000000003fff, 0x0000000000001fff,
+ 0x0000000000000fff, 0x00000000000007ff,
+ 0x00000000000003ff, 0x00000000000001ff,
+ 0x00000000000000ff, 0x000000000000007f,
+ 0x000000000000003f, 0x000000000000001f,
+ 0x000000000000000f, 0x0000000000000007,
+ 0x0000000000000003, 0x0000000000000001
+};
+#else
+PixelGroup cfb8BitLenMasks[PGSZ] = {
+ 0xffffffffffffffff, 0xfffffffffffffffe,
+ 0xfffffffffffffffc, 0xfffffffffffffff8,
+ 0xfffffffffffffff0, 0xffffffffffffffe0,
+ 0xffffffffffffffc0, 0xffffffffffffff80,
+ 0xffffffffffffff00, 0xfffffffffffffe00,
+ 0xfffffffffffffc00, 0xfffffffffffff800,
+ 0xfffffffffffff000, 0xffffffffffffe000,
+ 0xffffffffffffc000, 0xffffffffffff8000,
+ 0xffffffffffff0000, 0xfffffffffffe0000,
+ 0xfffffffffffc0000, 0xfffffffffff80000,
+ 0xfffffffffff00000, 0xffffffffffe00000,
+ 0xffffffffffc00000, 0xffffffffff800000,
+ 0xffffffffff000000, 0xfffffffffe000000,
+ 0xfffffffffc000000, 0xfffffffff8000000,
+ 0xfffffffff0000000, 0xffffffffe0000000,
+ 0xffffffffc0000000, 0xffffffff80000000,
+ 0xffffffff00000000, 0xfffffffe00000000,
+ 0xfffffffc00000000, 0xfffffff800000000,
+ 0xfffffff000000000, 0xffffffe000000000,
+ 0xffffffc000000000, 0xffffff8000000000,
+ 0xffffff0000000000, 0xfffffe0000000000,
+ 0xfffffc0000000000, 0xfffff80000000000,
+ 0xfffff00000000000, 0xffffe00000000000,
+ 0xffffc00000000000, 0xffff800000000000,
+ 0xffff000000000000, 0xfffe000000000000,
+ 0xfffc000000000000, 0xfff8000000000000,
+ 0xfff0000000000000, 0xffe0000000000000,
+ 0xffc0000000000000, 0xff80000000000000,
+ 0xff00000000000000, 0xfe00000000000000,
+ 0xfc00000000000000, 0xf800000000000000,
+ 0xf000000000000000, 0xe000000000000000,
+ 0xc000000000000000, 0x8000000000000000
+};
+#endif /* BITMAP_BIT_ORDER */
+#endif /* PGSZ */
+
+
+
+int
+cfb8ComputeClipMasks32 (pBox, numRects, x, y, w, h, clips)
+ BoxPtr pBox;
+ int numRects;
+ int x, y, w, h;
+ CARD32 *clips;
+{
+ int yBand, yBandBot;
+ int ch;
+ unsigned long clip;
+ int partIN = FALSE, partOUT = FALSE;
+ int result;
+
+ if (numRects == 0)
+ return rgnOUT;
+ while (numRects && pBox->y2 <= y)
+ {
+ --numRects;
+ ++pBox;
+ }
+ if (!numRects || pBox->y1 >= y + h)
+ return rgnOUT;
+ yBand = pBox->y1;
+ while (numRects && pBox->y1 == yBand && pBox->x2 <= x)
+ {
+ --numRects;
+ ++pBox;
+ }
+ if (!numRects || pBox->y1 >= y + h)
+ return rgnOUT;
+ if (numRects &&
+ x >= pBox->x1 &&
+ x + w <= pBox->x2 &&
+ y >= pBox->y1 &&
+ y + h <= pBox->y2)
+ {
+ return rgnIN;
+ }
+ ch = 0;
+ while (numRects && pBox->y1 < y + h)
+ {
+ yBand = pBox->y1;
+ yBandBot = pBox->y2;
+ while (ch < h && y + ch < yBand)
+ {
+ partOUT = TRUE;
+ clips[ch++] = 0;
+ }
+ if (ch >= h)
+ break;
+ while (numRects && pBox->y1 == yBand && pBox->x2 <= x)
+ {
+ --numRects;
+ ++pBox;
+ }
+ if (!numRects)
+ break;
+ clip = 0;
+ while (numRects && pBox->y1 == yBand && pBox->x1 < x + w)
+ {
+ if (x < pBox->x1)
+ if (pBox->x2 < x + w)
+ clip |= cfb8BitLenMasks[pBox->x1 - x] & ~cfb8BitLenMasks[pBox->x2 - x];
+ else
+ clip |= cfb8BitLenMasks[pBox->x1 - x];
+ else
+ if (pBox->x2 < x + w)
+ clip |= ~cfb8BitLenMasks[pBox->x2 - x];
+ else
+ clip = ~0;
+ --numRects;
+ ++pBox;
+ }
+ if (clip != 0)
+ partIN = TRUE;
+ if (clip != ~0)
+ partOUT = TRUE;
+ while (ch < h && y + ch < yBandBot)
+ clips[ch++] = clip;
+ while (numRects && pBox->y1 == yBand)
+ {
+ --numRects;
+ ++pBox;
+ }
+ }
+ while (ch < h)
+ {
+ partOUT = TRUE;
+ clips[ch++] = 0;
+ }
+ result = rgnOUT;
+ if (partIN)
+ {
+ if (partOUT)
+ result = rgnPART;
+ else
+ result = rgnIN;
+ }
+ return result;
+}
+
+#endif /* PSZ == 8 */
projects / rdpsrv / blobdiff