X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=hw%2Fcirrus_vga_rop2.h;h=137681ed1c116f8f00928ffb4e778178d3b380f3;hb=cd346349b45ef056f138a184f660b8c34c3213cc;hp=5521870c8b69a14de7d7cb252fee53b7b66d25a0;hpb=b30d4608dae994cf57cab4824f3307de026fd373;p=qemu

diff --git a/hw/cirrus_vga_rop2.h b/hw/cirrus_vga_rop2.h
index 5521870..137681e 100644
--- a/hw/cirrus_vga_rop2.h
+++ b/hw/cirrus_vga_rop2.h
@@ -1,8 +1,8 @@
 /*
  * QEMU Cirrus CLGD 54xx VGA Emulator.
- * 
+ *
  * Copyright (c) 2004 Fabrice Bellard
- * 
+ *
  * 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
@@ -34,19 +34,24 @@
 #define PUTPIXEL()    ROP_OP(((uint32_t *)d)[0], col)
 #else
 #error unsupported DEPTH
-#endif                
+#endif
 
 static void
 glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH)
      (CirrusVGAState * s, uint8_t * dst,
-      const uint8_t * src, 
-      int dstpitch, int srcpitch, 
+      const uint8_t * src,
+      int dstpitch, int srcpitch,
       int bltwidth, int bltheight)
 {
     uint8_t *d;
     int x, y, pattern_y, pattern_pitch, pattern_x;
     unsigned int col;
     const uint8_t *src1;
+#if DEPTH == 24
+    int skipleft = s->gr[0x2f] & 0x1f;
+#else
+    int skipleft = (s->gr[0x2f] & 0x07) * (DEPTH / 8);
+#endif
 
 #if DEPTH == 8
     pattern_pitch = 8;
@@ -56,11 +61,11 @@ glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH)
     pattern_pitch = 32;
 #endif
     pattern_y = s->cirrus_blt_srcaddr & 7;
-    pattern_x = 0;
     for(y = 0; y < bltheight; y++) {
-        d = dst;
+        pattern_x = skipleft;
+        d = dst + skipleft;
         src1 = src + pattern_y * pattern_pitch;
-        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+        for (x = skipleft; x < bltwidth; x += (DEPTH / 8)) {
 #if DEPTH == 8
             col = src1[pattern_x];
             pattern_x = (pattern_x + 1) & 7;
@@ -89,8 +94,8 @@ glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH)
 static void
 glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
      (CirrusVGAState * s, uint8_t * dst,
-      const uint8_t * src, 
-      int dstpitch, int srcpitch, 
+      const uint8_t * src,
+      int dstpitch, int srcpitch,
       int bltwidth, int bltheight)
 {
     uint8_t *d;
@@ -99,7 +104,13 @@ glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
     unsigned int col;
     unsigned bitmask;
     unsigned index;
-    int srcskipleft = 0;
+#if DEPTH == 24
+    int dstskipleft = s->gr[0x2f] & 0x1f;
+    int srcskipleft = dstskipleft / 3;
+#else
+    int srcskipleft = s->gr[0x2f] & 0x07;
+    int dstskipleft = srcskipleft * (DEPTH / 8);
+#endif
 
     if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
         bits_xor = 0xff;
@@ -112,8 +123,8 @@ glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
     for(y = 0; y < bltheight; y++) {
         bitmask = 0x80 >> srcskipleft;
         bits = *src++ ^ bits_xor;
-        d = dst;
-        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+        d = dst + dstskipleft;
+        for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
             if ((bitmask & 0xff) == 0) {
                 bitmask = 0x80;
                 bits = *src++ ^ bits_xor;
@@ -132,8 +143,8 @@ glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
 static void
 glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH)
      (CirrusVGAState * s, uint8_t * dst,
-      const uint8_t * src, 
-      int dstpitch, int srcpitch, 
+      const uint8_t * src,
+      int dstpitch, int srcpitch,
       int bltwidth, int bltheight)
 {
     uint32_t colors[2];
@@ -142,15 +153,16 @@ glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH)
     unsigned bits;
     unsigned int col;
     unsigned bitmask;
-    int srcskipleft = 0;
+    int srcskipleft = s->gr[0x2f] & 0x07;
+    int dstskipleft = srcskipleft * (DEPTH / 8);
 
     colors[0] = s->cirrus_blt_bgcol;
     colors[1] = s->cirrus_blt_fgcol;
     for(y = 0; y < bltheight; y++) {
         bitmask = 0x80 >> srcskipleft;
         bits = *src++;
-        d = dst;
-        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+        d = dst + dstskipleft;
+        for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
             if ((bitmask & 0xff) == 0) {
                 bitmask = 0x80;
                 bits = *src++;
@@ -167,14 +179,21 @@ glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH)
 static void
 glue(glue(glue(cirrus_colorexpand_pattern_transp_, ROP_NAME), _),DEPTH)
      (CirrusVGAState * s, uint8_t * dst,
-      const uint8_t * src, 
-      int dstpitch, int srcpitch, 
+      const uint8_t * src,
+      int dstpitch, int srcpitch,
       int bltwidth, int bltheight)
 {
     uint8_t *d;
     int x, y, bitpos, pattern_y;
     unsigned int bits, bits_xor;
     unsigned int col;
+#if DEPTH == 24
+    int dstskipleft = s->gr[0x2f] & 0x1f;
+    int srcskipleft = dstskipleft / 3;
+#else
+    int srcskipleft = s->gr[0x2f] & 0x07;
+    int dstskipleft = srcskipleft * (DEPTH / 8);
+#endif
 
     if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
         bits_xor = 0xff;
@@ -187,9 +206,9 @@ glue(glue(glue(cirrus_colorexpand_pattern_transp_, ROP_NAME), _),DEPTH)
 
     for(y = 0; y < bltheight; y++) {
         bits = src[pattern_y] ^ bits_xor;
-        bitpos = 7;
-        d = dst;
-        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+        bitpos = 7 - srcskipleft;
+        d = dst + dstskipleft;
+        for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
             if ((bits >> bitpos) & 1) {
                 PUTPIXEL();
             }
@@ -204,8 +223,8 @@ glue(glue(glue(cirrus_colorexpand_pattern_transp_, ROP_NAME), _),DEPTH)
 static void
 glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH)
      (CirrusVGAState * s, uint8_t * dst,
-      const uint8_t * src, 
-      int dstpitch, int srcpitch, 
+      const uint8_t * src,
+      int dstpitch, int srcpitch,
       int bltwidth, int bltheight)
 {
     uint32_t colors[2];
@@ -213,6 +232,8 @@ glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH)
     int x, y, bitpos, pattern_y;
     unsigned int bits;
     unsigned int col;
+    int srcskipleft = s->gr[0x2f] & 0x07;
+    int dstskipleft = srcskipleft * (DEPTH / 8);
 
     colors[0] = s->cirrus_blt_bgcol;
     colors[1] = s->cirrus_blt_fgcol;
@@ -220,9 +241,9 @@ glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH)
 
     for(y = 0; y < bltheight; y++) {
         bits = src[pattern_y];
-        bitpos = 7;
-        d = dst;
-        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+        bitpos = 7 - srcskipleft;
+        d = dst + dstskipleft;
+        for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
             col = colors[(bits >> bitpos) & 1];
             PUTPIXEL();
             d += (DEPTH / 8);
@@ -233,10 +254,10 @@ glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH)
     }
 }
 
-static void 
+static void
 glue(glue(glue(cirrus_fill_, ROP_NAME), _),DEPTH)
      (CirrusVGAState *s,
-      uint8_t *dst, int dst_pitch, 
+      uint8_t *dst, int dst_pitch,
       int width, int height)
 {
     uint8_t *d, *d1;