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 for (y = 0; y < bltheight; y++) { 101 for (x = 0; x < bltwidth; x++) { 102 p = *dst; 103 ROP_OP(&p, *src); 104 if (p != s->vga.gr[0x34]) *dst = p; 105 dst++; 106 src++; 107 } 108 dst += dstpitch; 109 src += srcpitch; 110 } 111 } 112 113 static void 114 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s, 115 uint8_t *dst,const uint8_t *src, 116 int dstpitch,int srcpitch, 117 int bltwidth,int bltheight) 118 { 119 int x,y; 120 uint8_t p; 121 dstpitch += bltwidth; 122 srcpitch += bltwidth; 123 for (y = 0; y < bltheight; y++) { 124 for (x = 0; x < bltwidth; x++) { 125 p = *dst; 126 ROP_OP(&p, *src); 127 if (p != s->vga.gr[0x34]) *dst = p; 128 dst--; 129 src--; 130 } 131 dst += dstpitch; 132 src += srcpitch; 133 } 134 } 135 136 static void 137 glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, 138 uint8_t *dst,const uint8_t *src, 139 int dstpitch,int srcpitch, 140 int bltwidth,int bltheight) 141 { 142 int x,y; 143 uint8_t p1, p2; 144 dstpitch -= bltwidth; 145 srcpitch -= bltwidth; 146 for (y = 0; y < bltheight; y++) { 147 for (x = 0; x < bltwidth; x+=2) { 148 p1 = *dst; 149 p2 = *(dst+1); 150 ROP_OP(&p1, *src); 151 ROP_OP(&p2, *(src + 1)); 152 if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) { 153 *dst = p1; 154 *(dst+1) = p2; 155 } 156 dst+=2; 157 src+=2; 158 } 159 dst += dstpitch; 160 src += srcpitch; 161 } 162 } 163 164 static void 165 glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, 166 uint8_t *dst,const uint8_t *src, 167 int dstpitch,int srcpitch, 168 int bltwidth,int bltheight) 169 { 170 int x,y; 171 uint8_t p1, p2; 172 dstpitch += bltwidth; 173 srcpitch += bltwidth; 174 for (y = 0; y < bltheight; y++) { 175 for (x = 0; x < bltwidth; x+=2) { 176 p1 = *(dst-1); 177 p2 = *dst; 178 ROP_OP(&p1, *(src - 1)); 179 ROP_OP(&p2, *src); 180 if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) { 181 *(dst-1) = p1; 182 *dst = p2; 183 } 184 dst-=2; 185 src-=2; 186 } 187 dst += dstpitch; 188 src += srcpitch; 189 } 190 } 191 192 #define DEPTH 8 193 #include "cirrus_vga_rop2.h" 194 195 #define DEPTH 16 196 #include "cirrus_vga_rop2.h" 197 198 #define DEPTH 24 199 #include "cirrus_vga_rop2.h" 200 201 #define DEPTH 32 202 #include "cirrus_vga_rop2.h" 203 204 #undef ROP_NAME 205 #undef ROP_OP 206 #undef ROP_OP_16 207 #undef ROP_OP_32 208