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Diffstat (limited to 'xorg-server/fb/fbsolid.c')
-rw-r--r--xorg-server/fb/fbsolid.c422
1 files changed, 209 insertions, 213 deletions
diff --git a/xorg-server/fb/fbsolid.c b/xorg-server/fb/fbsolid.c
index 53fcae071..544a1c683 100644
--- a/xorg-server/fb/fbsolid.c
+++ b/xorg-server/fb/fbsolid.c
@@ -1,213 +1,209 @@
-/*
- * Copyright © 1998 Keith Packard
- *
- * 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 Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Keith Packard makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD 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.
- */
-
-#define FbSelectPart(xor,o,t) xor
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "fb.h"
-
-void
-fbSolid (FbBits *dst,
- FbStride dstStride,
- int dstX,
- int bpp,
-
- int width,
- int height,
-
- FbBits and,
- FbBits xor)
-{
- FbBits startmask, endmask;
- int n, nmiddle;
- int startbyte, endbyte;
-
-#ifdef FB_24BIT
- if (bpp == 24 && (!FbCheck24Pix(and) || !FbCheck24Pix(xor)))
- {
- fbSolid24 (dst, dstStride, dstX, width, height, and, xor);
- return;
- }
-#endif
- dst += dstX >> FB_SHIFT;
- dstX &= FB_MASK;
- FbMaskBitsBytes(dstX, width, and == 0, startmask, startbyte,
- nmiddle, endmask, endbyte);
- if (startmask)
- dstStride--;
- dstStride -= nmiddle;
- while (height--)
- {
- if (startmask)
- {
- FbDoLeftMaskByteRRop(dst,startbyte,startmask,and,xor);
- dst++;
- }
- n = nmiddle;
- if (!and)
- while (n--)
- WRITE(dst++, xor);
- else
- while (n--)
- {
- WRITE(dst, FbDoRRop (READ(dst), and, xor));
- dst++;
- }
- if (endmask)
- FbDoRightMaskByteRRop(dst,endbyte,endmask,and,xor);
- dst += dstStride;
- }
-}
-
-#ifdef FB_24BIT
-void
-fbSolid24 (FbBits *dst,
- FbStride dstStride,
- int dstX,
-
- int width,
- int height,
-
- FbBits and,
- FbBits xor)
-{
- FbBits startmask, endmask;
- FbBits xor0 = 0, xor1 = 0, xor2 = 0;
- FbBits and0 = 0, and1 = 0, and2 = 0;
- FbBits xorS = 0, andS = 0, xorE = 0, andE = 0;
- int n, nmiddle;
- int rotS, rot;
-
- dst += dstX >> FB_SHIFT;
- dstX &= FB_MASK;
- /*
- * Rotate pixel values this far across the word to align on
- * screen pixel boundaries
- */
- rot = FbFirst24Rot (dstX);
- FbMaskBits (dstX, width, startmask, nmiddle, endmask);
- if (startmask)
- dstStride--;
- dstStride -= nmiddle;
-
- /*
- * Precompute rotated versions of the rasterop values
- */
- rotS = rot;
- xor = FbRot24(xor,rotS);
- and = FbRot24(and,rotS);
- if (startmask)
- {
- xorS = xor;
- andS = and;
- xor = FbNext24Pix(xor);
- and = FbNext24Pix(and);
- }
-
- if (nmiddle)
- {
- xor0 = xor;
- and0 = and;
- xor1 = FbNext24Pix(xor0);
- and1 = FbNext24Pix(and0);
- xor2 = FbNext24Pix(xor1);
- and2 = FbNext24Pix(and1);
- }
-
- if (endmask)
- {
- switch (nmiddle % 3) {
- case 0:
- xorE = xor;
- andE = and;
- break;
- case 1:
- xorE = xor1;
- andE = and1;
- break;
- case 2:
- xorE = xor2;
- andE = and2;
- break;
- }
- }
-
- while (height--)
- {
- if (startmask)
- {
- WRITE(dst, FbDoMaskRRop(READ(dst), andS, xorS, startmask));
- dst++;
- }
- n = nmiddle;
- if (!and0)
- {
- while (n >= 3)
- {
- WRITE(dst++, xor0);
- WRITE(dst++, xor1);
- WRITE(dst++, xor2);
- n -= 3;
- }
- if (n)
- {
- WRITE(dst++, xor0);
- n--;
- if (n)
- {
- WRITE(dst++, xor1);
- }
- }
- }
- else
- {
- while (n >= 3)
- {
- WRITE(dst, FbDoRRop (READ(dst), and0, xor0));
- dst++;
- WRITE(dst, FbDoRRop (READ(dst), and1, xor1));
- dst++;
- WRITE(dst, FbDoRRop (READ(dst), and2, xor2));
- dst++;
- n -= 3;
- }
- if (n)
- {
- WRITE(dst, FbDoRRop (READ(dst), and0, xor0));
- dst++;
- n--;
- if (n)
- {
- WRITE(dst, FbDoRRop (READ(dst), and1, xor1));
- dst++;
- }
- }
- }
- if (endmask)
- WRITE(dst, FbDoMaskRRop (READ(dst), andE, xorE, endmask));
- dst += dstStride;
- }
-}
-#endif
+/*
+ * Copyright © 1998 Keith Packard
+ *
+ * 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 Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD 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.
+ */
+
+#define FbSelectPart(xor,o,t) xor
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "fb.h"
+
+void
+fbSolid (FbBits *dst,
+ FbStride dstStride,
+ int dstX,
+ int bpp,
+
+ int width,
+ int height,
+
+ FbBits and,
+ FbBits xor)
+{
+ FbBits startmask, endmask;
+ int n, nmiddle;
+ int startbyte, endbyte;
+
+ if (bpp == 24 && (!FbCheck24Pix(and) || !FbCheck24Pix(xor)))
+ {
+ fbSolid24 (dst, dstStride, dstX, width, height, and, xor);
+ return;
+ }
+ dst += dstX >> FB_SHIFT;
+ dstX &= FB_MASK;
+ FbMaskBitsBytes(dstX, width, and == 0, startmask, startbyte,
+ nmiddle, endmask, endbyte);
+ if (startmask)
+ dstStride--;
+ dstStride -= nmiddle;
+ while (height--)
+ {
+ if (startmask)
+ {
+ FbDoLeftMaskByteRRop(dst,startbyte,startmask,and,xor);
+ dst++;
+ }
+ n = nmiddle;
+ if (!and)
+ while (n--)
+ WRITE(dst++, xor);
+ else
+ while (n--)
+ {
+ WRITE(dst, FbDoRRop (READ(dst), and, xor));
+ dst++;
+ }
+ if (endmask)
+ FbDoRightMaskByteRRop(dst,endbyte,endmask,and,xor);
+ dst += dstStride;
+ }
+}
+
+void
+fbSolid24 (FbBits *dst,
+ FbStride dstStride,
+ int dstX,
+
+ int width,
+ int height,
+
+ FbBits and,
+ FbBits xor)
+{
+ FbBits startmask, endmask;
+ FbBits xor0 = 0, xor1 = 0, xor2 = 0;
+ FbBits and0 = 0, and1 = 0, and2 = 0;
+ FbBits xorS = 0, andS = 0, xorE = 0, andE = 0;
+ int n, nmiddle;
+ int rotS, rot;
+
+ dst += dstX >> FB_SHIFT;
+ dstX &= FB_MASK;
+ /*
+ * Rotate pixel values this far across the word to align on
+ * screen pixel boundaries
+ */
+ rot = FbFirst24Rot (dstX);
+ FbMaskBits (dstX, width, startmask, nmiddle, endmask);
+ if (startmask)
+ dstStride--;
+ dstStride -= nmiddle;
+
+ /*
+ * Precompute rotated versions of the rasterop values
+ */
+ rotS = rot;
+ xor = FbRot24(xor,rotS);
+ and = FbRot24(and,rotS);
+ if (startmask)
+ {
+ xorS = xor;
+ andS = and;
+ xor = FbNext24Pix(xor);
+ and = FbNext24Pix(and);
+ }
+
+ if (nmiddle)
+ {
+ xor0 = xor;
+ and0 = and;
+ xor1 = FbNext24Pix(xor0);
+ and1 = FbNext24Pix(and0);
+ xor2 = FbNext24Pix(xor1);
+ and2 = FbNext24Pix(and1);
+ }
+
+ if (endmask)
+ {
+ switch (nmiddle % 3) {
+ case 0:
+ xorE = xor;
+ andE = and;
+ break;
+ case 1:
+ xorE = xor1;
+ andE = and1;
+ break;
+ case 2:
+ xorE = xor2;
+ andE = and2;
+ break;
+ }
+ }
+
+ while (height--)
+ {
+ if (startmask)
+ {
+ WRITE(dst, FbDoMaskRRop(READ(dst), andS, xorS, startmask));
+ dst++;
+ }
+ n = nmiddle;
+ if (!and0)
+ {
+ while (n >= 3)
+ {
+ WRITE(dst++, xor0);
+ WRITE(dst++, xor1);
+ WRITE(dst++, xor2);
+ n -= 3;
+ }
+ if (n)
+ {
+ WRITE(dst++, xor0);
+ n--;
+ if (n)
+ {
+ WRITE(dst++, xor1);
+ }
+ }
+ }
+ else
+ {
+ while (n >= 3)
+ {
+ WRITE(dst, FbDoRRop (READ(dst), and0, xor0));
+ dst++;
+ WRITE(dst, FbDoRRop (READ(dst), and1, xor1));
+ dst++;
+ WRITE(dst, FbDoRRop (READ(dst), and2, xor2));
+ dst++;
+ n -= 3;
+ }
+ if (n)
+ {
+ WRITE(dst, FbDoRRop (READ(dst), and0, xor0));
+ dst++;
+ n--;
+ if (n)
+ {
+ WRITE(dst, FbDoRRop (READ(dst), and1, xor1));
+ dst++;
+ }
+ }
+ }
+ if (endmask)
+ WRITE(dst, FbDoMaskRRop (READ(dst), andE, xorE, endmask));
+ dst += dstStride;
+ }
+}
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