hardware cursor support - fill with rop support - color expand and color expand with transparent support - various optimisations

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@902 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 140 insertions, 0 deletions

diff --git a/hw/cirrus_vga_rop2.h b/hw/cirrus_vga_rop2.h
new file mode 100644
index 0000000..6826627
--- /dev/null
+++ b/hw/cirrus_vga_rop2.h
@@ -0,0 +1,140 @@
+/*
+ * 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
+ * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+#if DEPTH == 8
+#define PUTPIXEL()    ROP_OP(d[0], col)
+#elif DEPTH == 16
+#define PUTPIXEL()    ROP_OP(((uint16_t *)d)[0], col);
+#elif DEPTH == 24
+#define PUTPIXEL()    ROP_OP(d[0], col); \
+                      ROP_OP(d[1], (col >> 8)); \
+                      ROP_OP(d[2], (col >> 16))
+#elif DEPTH == 32
+#define PUTPIXEL()    ROP_OP(((uint32_t *)d)[0], col)
+#else
+#error unsupported DEPTH
+#endif                
+
+static void
+glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
+     (CirrusVGAState * s, uint8_t * dst,
+      const uint8_t * src1, 
+      int dstpitch, int srcpitch, 
+      int bltwidth, int bltheight)
+{
+    const uint8_t *src;
+    uint8_t *d;
+    int x, y;
+    unsigned bits;
+    unsigned int col;
+    unsigned bitmask;
+    unsigned index;
+    int srcskipleft = 0;
+
+    col = s->cirrus_blt_fgcol;
+    for(y = 0; y < bltheight; y++) {
+        src = src1;
+        bitmask = 0x80 >> srcskipleft;
+        bits = *src++;
+        d = dst;
+        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+            if ((bitmask & 0xff) == 0) {
+                bitmask = 0x80;
+                bits = *src++;
+            }
+            index = (bits & bitmask);
+            if (index) {
+                PUTPIXEL();
+            }
+            d += (DEPTH / 8);
+            bitmask >>= 1;
+        }
+        src1 += srcpitch;
+        dst += dstpitch;
+    }
+}
+
+static void
+glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH)
+     (CirrusVGAState * s, uint8_t * dst,
+      const uint8_t * src1, 
+      int dstpitch, int srcpitch, 
+      int bltwidth, int bltheight)
+{
+    const uint8_t *src;
+    uint32_t colors[2];
+    uint8_t *d;
+    int x, y;
+    unsigned bits;
+    unsigned int col;
+    unsigned bitmask;
+    int srcskipleft = 0;
+
+    colors[0] = s->cirrus_blt_bgcol;
+    colors[1] = s->cirrus_blt_fgcol;
+    for(y = 0; y < bltheight; y++) {
+        src = src1;
+        bitmask = 0x80 >> srcskipleft;
+        bits = *src++;
+        d = dst;
+        for (x = 0; x < bltwidth; x += (DEPTH / 8)) {
+            if ((bitmask & 0xff) == 0) {
+                bitmask = 0x80;
+                bits = *src++;
+            }
+            col = colors[!!(bits & bitmask)];
+            PUTPIXEL();
+            d += (DEPTH / 8);
+            bitmask >>= 1;
+        }
+        src1 += srcpitch;
+        dst += dstpitch;
+    }
+}
+
+static void 
+glue(glue(glue(cirrus_fill_, ROP_NAME), _),DEPTH)
+     (CirrusVGAState *s,
+      uint8_t *dst, int dst_pitch, 
+      int width, int height)
+{
+    uint8_t *d, *d1;
+    uint32_t col;
+    int x, y;
+
+    col = s->cirrus_blt_fgcol;
+
+    d1 = dst;
+    for(y = 0; y < height; y++) {
+        d = d1;
+        for(x = 0; x < width; x += (DEPTH / 8)) {
+            PUTPIXEL();
+            d += (DEPTH / 8);
+        }
+        d1 += dst_pitch;
+    }
+}
+
+#undef DEPTH
+#undef PUTPIXEL