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Diffstat (limited to 'hw/display/cirrus_vga_rop2.h')
-rw-r--r--hw/display/cirrus_vga_rop2.h281
1 files changed, 281 insertions, 0 deletions
diff --git a/hw/display/cirrus_vga_rop2.h b/hw/display/cirrus_vga_rop2.h
new file mode 100644
index 0000000000..d28bcc6f25
--- /dev/null
+++ b/hw/display/cirrus_vga_rop2.h
@@ -0,0 +1,281 @@
+/*
+ * 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_16((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_32(((uint32_t *)&d[0]), col)
+#else
+#error unsupported DEPTH
+#endif
+
+static void
+glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH)
+ (CirrusVGAState * s, uint8_t * dst,
+ 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->vga.gr[0x2f] & 0x1f;
+#else
+ int skipleft = (s->vga.gr[0x2f] & 0x07) * (DEPTH / 8);
+#endif
+
+#if DEPTH == 8
+ pattern_pitch = 8;
+#elif DEPTH == 16
+ pattern_pitch = 16;
+#else
+ pattern_pitch = 32;
+#endif
+ pattern_y = s->cirrus_blt_srcaddr & 7;
+ for(y = 0; y < bltheight; y++) {
+ pattern_x = skipleft;
+ d = dst + skipleft;
+ src1 = src + pattern_y * pattern_pitch;
+ for (x = skipleft; x < bltwidth; x += (DEPTH / 8)) {
+#if DEPTH == 8
+ col = src1[pattern_x];
+ pattern_x = (pattern_x + 1) & 7;
+#elif DEPTH == 16
+ col = ((uint16_t *)(src1 + pattern_x))[0];
+ pattern_x = (pattern_x + 2) & 15;
+#elif DEPTH == 24
+ {
+ const uint8_t *src2 = src1 + pattern_x * 3;
+ col = src2[0] | (src2[1] << 8) | (src2[2] << 16);
+ pattern_x = (pattern_x + 1) & 7;
+ }
+#else
+ col = ((uint32_t *)(src1 + pattern_x))[0];
+ pattern_x = (pattern_x + 4) & 31;
+#endif
+ PUTPIXEL();
+ d += (DEPTH / 8);
+ }
+ pattern_y = (pattern_y + 1) & 7;
+ dst += dstpitch;
+ }
+}
+
+/* NOTE: srcpitch is ignored */
+static void
+glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
+ (CirrusVGAState * s, uint8_t * dst,
+ const uint8_t * src,
+ int dstpitch, int srcpitch,
+ int bltwidth, int bltheight)
+{
+ uint8_t *d;
+ int x, y;
+ unsigned bits, bits_xor;
+ unsigned int col;
+ unsigned bitmask;
+ unsigned index;
+#if DEPTH == 24
+ int dstskipleft = s->vga.gr[0x2f] & 0x1f;
+ int srcskipleft = dstskipleft / 3;
+#else
+ int srcskipleft = s->vga.gr[0x2f] & 0x07;
+ int dstskipleft = srcskipleft * (DEPTH / 8);
+#endif
+
+ if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
+ bits_xor = 0xff;
+ col = s->cirrus_blt_bgcol;
+ } else {
+ bits_xor = 0x00;
+ col = s->cirrus_blt_fgcol;
+ }
+
+ for(y = 0; y < bltheight; y++) {
+ bitmask = 0x80 >> srcskipleft;
+ bits = *src++ ^ bits_xor;
+ d = dst + dstskipleft;
+ for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
+ if ((bitmask & 0xff) == 0) {
+ bitmask = 0x80;
+ bits = *src++ ^ bits_xor;
+ }
+ index = (bits & bitmask);
+ if (index) {
+ PUTPIXEL();
+ }
+ d += (DEPTH / 8);
+ bitmask >>= 1;
+ }
+ dst += dstpitch;
+ }
+}
+
+static void
+glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH)
+ (CirrusVGAState * s, uint8_t * dst,
+ const uint8_t * src,
+ int dstpitch, int srcpitch,
+ int bltwidth, int bltheight)
+{
+ uint32_t colors[2];
+ uint8_t *d;
+ int x, y;
+ unsigned bits;
+ unsigned int col;
+ unsigned bitmask;
+ int srcskipleft = s->vga.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 + dstskipleft;
+ for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
+ if ((bitmask & 0xff) == 0) {
+ bitmask = 0x80;
+ bits = *src++;
+ }
+ col = colors[!!(bits & bitmask)];
+ PUTPIXEL();
+ d += (DEPTH / 8);
+ bitmask >>= 1;
+ }
+ dst += dstpitch;
+ }
+}
+
+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,
+ 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->vga.gr[0x2f] & 0x1f;
+ int srcskipleft = dstskipleft / 3;
+#else
+ int srcskipleft = s->vga.gr[0x2f] & 0x07;
+ int dstskipleft = srcskipleft * (DEPTH / 8);
+#endif
+
+ if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
+ bits_xor = 0xff;
+ col = s->cirrus_blt_bgcol;
+ } else {
+ bits_xor = 0x00;
+ col = s->cirrus_blt_fgcol;
+ }
+ pattern_y = s->cirrus_blt_srcaddr & 7;
+
+ for(y = 0; y < bltheight; y++) {
+ bits = src[pattern_y] ^ bits_xor;
+ bitpos = 7 - srcskipleft;
+ d = dst + dstskipleft;
+ for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
+ if ((bits >> bitpos) & 1) {
+ PUTPIXEL();
+ }
+ d += (DEPTH / 8);
+ bitpos = (bitpos - 1) & 7;
+ }
+ pattern_y = (pattern_y + 1) & 7;
+ dst += dstpitch;
+ }
+}
+
+static void
+glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH)
+ (CirrusVGAState * s, uint8_t * dst,
+ const uint8_t * src,
+ int dstpitch, int srcpitch,
+ int bltwidth, int bltheight)
+{
+ uint32_t colors[2];
+ uint8_t *d;
+ int x, y, bitpos, pattern_y;
+ unsigned int bits;
+ unsigned int col;
+ int srcskipleft = s->vga.gr[0x2f] & 0x07;
+ int dstskipleft = srcskipleft * (DEPTH / 8);
+
+ colors[0] = s->cirrus_blt_bgcol;
+ colors[1] = s->cirrus_blt_fgcol;
+ pattern_y = s->cirrus_blt_srcaddr & 7;
+
+ for(y = 0; y < bltheight; y++) {
+ bits = src[pattern_y];
+ bitpos = 7 - srcskipleft;
+ d = dst + dstskipleft;
+ for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
+ col = colors[(bits >> bitpos) & 1];
+ PUTPIXEL();
+ d += (DEPTH / 8);
+ bitpos = (bitpos - 1) & 7;
+ }
+ pattern_y = (pattern_y + 1) & 7;
+ 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
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-18 16:42:42 +0000