root / hw / cirrus_vga_rop2.h @ 6f15b608
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/*
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* QEMU Cirrus CLGD 54xx VGA Emulator.
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*
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* Copyright (c) 2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#if DEPTH == 8 |
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#define PUTPIXEL() ROP_OP(d[0], col) |
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#elif DEPTH == 16 |
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#define PUTPIXEL() ROP_OP(((uint16_t *)d)[0], col); |
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#elif DEPTH == 24 |
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#define PUTPIXEL() ROP_OP(d[0], col); \ |
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ROP_OP(d[1], (col >> 8)); \ |
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ROP_OP(d[2], (col >> 16)) |
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#elif DEPTH == 32 |
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#define PUTPIXEL() ROP_OP(((uint32_t *)d)[0], col) |
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#else
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#error unsupported DEPTH
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#endif
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static void |
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glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH) |
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(CirrusVGAState * s, uint8_t * dst, |
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const uint8_t * src,
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int dstpitch, int srcpitch, |
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int bltwidth, int bltheight) |
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{ |
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uint8_t *d; |
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int x, y, pattern_y, pattern_pitch, pattern_x;
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unsigned int col; |
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const uint8_t *src1;
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#if DEPTH == 24 |
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int skipleft = s->gr[0x2f] & 0x1f; |
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#else
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int skipleft = (s->gr[0x2f] & 0x07) * (DEPTH / 8); |
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#endif
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#if DEPTH == 8 |
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pattern_pitch = 8;
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#elif DEPTH == 16 |
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pattern_pitch = 16;
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#else
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pattern_pitch = 32;
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#endif
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pattern_y = s->cirrus_blt_srcaddr & 7;
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for(y = 0; y < bltheight; y++) { |
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pattern_x = skipleft; |
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d = dst + skipleft; |
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src1 = src + pattern_y * pattern_pitch; |
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for (x = skipleft; x < bltwidth; x += (DEPTH / 8)) { |
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#if DEPTH == 8 |
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col = src1[pattern_x]; |
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pattern_x = (pattern_x + 1) & 7; |
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#elif DEPTH == 16 |
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col = ((uint16_t *)(src1 + pattern_x))[0];
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pattern_x = (pattern_x + 2) & 15; |
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#elif DEPTH == 24 |
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{ |
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const uint8_t *src2 = src1 + pattern_x * 3; |
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col = src2[0] | (src2[1] << 8) | (src2[2] << 16); |
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pattern_x = (pattern_x + 1) & 7; |
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} |
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#else
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col = ((uint32_t *)(src1 + pattern_x))[0];
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pattern_x = (pattern_x + 4) & 31; |
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#endif
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PUTPIXEL(); |
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d += (DEPTH / 8);
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} |
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pattern_y = (pattern_y + 1) & 7; |
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dst += dstpitch; |
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} |
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} |
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/* NOTE: srcpitch is ignored */
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static void |
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glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH) |
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(CirrusVGAState * s, uint8_t * dst, |
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const uint8_t * src,
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int dstpitch, int srcpitch, |
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int bltwidth, int bltheight) |
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{ |
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uint8_t *d; |
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int x, y;
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unsigned bits, bits_xor;
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unsigned int col; |
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unsigned bitmask;
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unsigned index;
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#if DEPTH == 24 |
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int dstskipleft = s->gr[0x2f] & 0x1f; |
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int srcskipleft = dstskipleft / 3; |
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#else
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int srcskipleft = s->gr[0x2f] & 0x07; |
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int dstskipleft = srcskipleft * (DEPTH / 8); |
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#endif
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if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
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bits_xor = 0xff;
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col = s->cirrus_blt_bgcol; |
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} else {
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bits_xor = 0x00;
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col = s->cirrus_blt_fgcol; |
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} |
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for(y = 0; y < bltheight; y++) { |
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bitmask = 0x80 >> srcskipleft;
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bits = *src++ ^ bits_xor; |
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d = dst + dstskipleft; |
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for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) { |
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if ((bitmask & 0xff) == 0) { |
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bitmask = 0x80;
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bits = *src++ ^ bits_xor; |
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} |
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index = (bits & bitmask); |
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if (index) {
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PUTPIXEL(); |
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} |
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d += (DEPTH / 8);
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bitmask >>= 1;
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} |
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dst += dstpitch; |
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} |
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} |
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static void |
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glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH) |
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(CirrusVGAState * s, uint8_t * dst, |
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const uint8_t * src,
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int dstpitch, int srcpitch, |
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int bltwidth, int bltheight) |
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{ |
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uint32_t colors[2];
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uint8_t *d; |
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int x, y;
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unsigned bits;
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unsigned int col; |
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unsigned bitmask;
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int srcskipleft = s->gr[0x2f] & 0x07; |
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int dstskipleft = srcskipleft * (DEPTH / 8); |
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colors[0] = s->cirrus_blt_bgcol;
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colors[1] = s->cirrus_blt_fgcol;
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for(y = 0; y < bltheight; y++) { |
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bitmask = 0x80 >> srcskipleft;
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bits = *src++; |
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d = dst + dstskipleft; |
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for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) { |
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if ((bitmask & 0xff) == 0) { |
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bitmask = 0x80;
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bits = *src++; |
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} |
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col = colors[!!(bits & bitmask)]; |
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PUTPIXEL(); |
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d += (DEPTH / 8);
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bitmask >>= 1;
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} |
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dst += dstpitch; |
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} |
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} |
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static void |
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glue(glue(glue(cirrus_colorexpand_pattern_transp_, ROP_NAME), _),DEPTH) |
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(CirrusVGAState * s, uint8_t * dst, |
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const uint8_t * src,
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int dstpitch, int srcpitch, |
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int bltwidth, int bltheight) |
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{ |
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uint8_t *d; |
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int x, y, bitpos, pattern_y;
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unsigned int bits, bits_xor; |
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unsigned int col; |
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#if DEPTH == 24 |
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int dstskipleft = s->gr[0x2f] & 0x1f; |
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int srcskipleft = dstskipleft / 3; |
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#else
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int srcskipleft = s->gr[0x2f] & 0x07; |
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int dstskipleft = srcskipleft * (DEPTH / 8); |
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#endif
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if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
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bits_xor = 0xff;
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col = s->cirrus_blt_bgcol; |
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} else {
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bits_xor = 0x00;
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col = s->cirrus_blt_fgcol; |
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} |
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pattern_y = s->cirrus_blt_srcaddr & 7;
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for(y = 0; y < bltheight; y++) { |
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bits = src[pattern_y] ^ bits_xor; |
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bitpos = 7 - srcskipleft;
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d = dst + dstskipleft; |
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for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) { |
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if ((bits >> bitpos) & 1) { |
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PUTPIXEL(); |
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} |
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d += (DEPTH / 8);
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bitpos = (bitpos - 1) & 7; |
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} |
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pattern_y = (pattern_y + 1) & 7; |
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dst += dstpitch; |
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} |
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} |
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static void |
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glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH) |
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(CirrusVGAState * s, uint8_t * dst, |
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const uint8_t * src,
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int dstpitch, int srcpitch, |
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int bltwidth, int bltheight) |
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{ |
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uint32_t colors[2];
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uint8_t *d; |
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int x, y, bitpos, pattern_y;
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unsigned int bits; |
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unsigned int col; |
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int srcskipleft = s->gr[0x2f] & 0x07; |
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int dstskipleft = srcskipleft * (DEPTH / 8); |
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colors[0] = s->cirrus_blt_bgcol;
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colors[1] = s->cirrus_blt_fgcol;
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pattern_y = s->cirrus_blt_srcaddr & 7;
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for(y = 0; y < bltheight; y++) { |
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bits = src[pattern_y]; |
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bitpos = 7 - srcskipleft;
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d = dst + dstskipleft; |
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for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) { |
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col = colors[(bits >> bitpos) & 1];
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PUTPIXEL(); |
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d += (DEPTH / 8);
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bitpos = (bitpos - 1) & 7; |
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} |
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pattern_y = (pattern_y + 1) & 7; |
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dst += dstpitch; |
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} |
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} |
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static void |
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glue(glue(glue(cirrus_fill_, ROP_NAME), _),DEPTH) |
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(CirrusVGAState *s, |
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uint8_t *dst, int dst_pitch,
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int width, int height) |
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{ |
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uint8_t *d, *d1; |
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uint32_t col; |
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int x, y;
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col = s->cirrus_blt_fgcol; |
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d1 = dst; |
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for(y = 0; y < height; y++) { |
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d = d1; |
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for(x = 0; x < width; x += (DEPTH / 8)) { |
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PUTPIXEL(); |
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d += (DEPTH / 8);
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} |
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d1 += dst_pitch; |
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} |
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} |
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#undef DEPTH
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#undef PUTPIXEL
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