1 /* 2 * QEMU Cirrus CLGD 54xx VGA Emulator. 3 * 4 * Copyright (c) 2004 Fabrice Bellard 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to deal 8 * in the Software without restriction, including without limitation the rights 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 10 * copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 22 * THE SOFTWARE. 23 */ 24 25 static inline void glue(rop_8_,ROP_NAME)(uint8_t *dst, uint8_t src) 26 { 27 *dst = ROP_FN(*dst, src); 28 } 29 30 static inline void glue(rop_16_,ROP_NAME)(uint16_t *dst, uint16_t src) 31 { 32 *dst = ROP_FN(*dst, src); 33 } 34 35 static inline void glue(rop_32_,ROP_NAME)(uint32_t *dst, uint32_t src) 36 { 37 *dst = ROP_FN(*dst, src); 38 } 39 40 #define ROP_OP(d, s) glue(rop_8_,ROP_NAME)(d, s) 41 #define ROP_OP_16(d, s) glue(rop_16_,ROP_NAME)(d, s) 42 #define ROP_OP_32(d, s) glue(rop_32_,ROP_NAME)(d, s) 43 #undef ROP_FN 44 45 static void 46 glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s, 47 uint8_t *dst,const uint8_t *src, 48 int dstpitch,int srcpitch, 49 int bltwidth,int bltheight) 50 { 51 int x,y; 52 dstpitch -= bltwidth; 53 srcpitch -= bltwidth; 54 55 if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) { 56 return; 57 } 58 59 for (y = 0; y < bltheight; y++) { 60 for (x = 0; x < bltwidth; x++) { 61 ROP_OP(dst, *src); 62 dst++; 63 src++; 64 } 65 dst += dstpitch; 66 src += srcpitch; 67 } 68 } 69 70 static void 71 glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s, 72 uint8_t *dst,const uint8_t *src, 73 int dstpitch,int srcpitch, 74 int bltwidth,int bltheight) 75 { 76 int x,y; 77 dstpitch += bltwidth; 78 srcpitch += bltwidth; 79 for (y = 0; y < bltheight; y++) { 80 for (x = 0; x < bltwidth; x++) { 81 ROP_OP(dst, *src); 82 dst--; 83 src--; 84 } 85 dst += dstpitch; 86 src += srcpitch; 87 } 88 } 89 90 static void 91 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_8)(CirrusVGAState *s, 92 uint8_t *dst,const uint8_t *src, 93 int dstpitch,int srcpitch, 94 int bltwidth,int bltheight) 95 { 96 int x,y; 97 uint8_t p; 98 dstpitch -= bltwidth; 99 srcpitch -= bltwidth; 100 101 if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) { 102 return; 103 } 104 105 for (y = 0; y < bltheight; y++) { 106 for (x = 0; x < bltwidth; x++) { 107 p = *dst; 108 ROP_OP(&p, *src); 109 if (p != s->vga.gr[0x34]) *dst = p; 110 dst++; 111 src++; 112 } 113 dst += dstpitch; 114 src += srcpitch; 115 } 116 } 117 118 static void 119 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s, 120 uint8_t *dst,const uint8_t *src, 121 int dstpitch,int srcpitch, 122 int bltwidth,int bltheight) 123 { 124 int x,y; 125 uint8_t p; 126 dstpitch += bltwidth; 127 srcpitch += bltwidth; 128 for (y = 0; y < bltheight; y++) { 129 for (x = 0; x < bltwidth; x++) { 130 p = *dst; 131 ROP_OP(&p, *src); 132 if (p != s->vga.gr[0x34]) *dst = p; 133 dst--; 134 src--; 135 } 136 dst += dstpitch; 137 src += srcpitch; 138 } 139 } 140 141 static void 142 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, 143 uint8_t *dst,const uint8_t *src, 144 int dstpitch,int srcpitch, 145 int bltwidth,int bltheight) 146 { 147 int x,y; 148 uint8_t p1, p2; 149 dstpitch -= bltwidth; 150 srcpitch -= bltwidth; 151 152 if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) { 153 return; 154 } 155 156 for (y = 0; y < bltheight; y++) { 157 for (x = 0; x < bltwidth; x+=2) { 158 p1 = *dst; 159 p2 = *(dst+1); 160 ROP_OP(&p1, *src); 161 ROP_OP(&p2, *(src + 1)); 162 if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) { 163 *dst = p1; 164 *(dst+1) = p2; 165 } 166 dst+=2; 167 src+=2; 168 } 169 dst += dstpitch; 170 src += srcpitch; 171 } 172 } 173 174 static void 175 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, 176 uint8_t *dst,const uint8_t *src, 177 int dstpitch,int srcpitch, 178 int bltwidth,int bltheight) 179 { 180 int x,y; 181 uint8_t p1, p2; 182 dstpitch += bltwidth; 183 srcpitch += bltwidth; 184 for (y = 0; y < bltheight; y++) { 185 for (x = 0; x < bltwidth; x+=2) { 186 p1 = *(dst-1); 187 p2 = *dst; 188 ROP_OP(&p1, *(src - 1)); 189 ROP_OP(&p2, *src); 190 if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) { 191 *(dst-1) = p1; 192 *dst = p2; 193 } 194 dst-=2; 195 src-=2; 196 } 197 dst += dstpitch; 198 src += srcpitch; 199 } 200 } 201 202 #define DEPTH 8 203 #include "cirrus_vga_rop2.h" 204 205 #define DEPTH 16 206 #include "cirrus_vga_rop2.h" 207 208 #define DEPTH 24 209 #include "cirrus_vga_rop2.h" 210 211 #define DEPTH 32 212 #include "cirrus_vga_rop2.h" 213 214 #undef ROP_NAME 215 #undef ROP_OP 216 #undef ROP_OP_16 217 #undef ROP_OP_32 218