| 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)(CirrusVGAState *s, |
| 26 | uint32_t dstaddr, uint8_t src) |
| 27 | { |
| 28 | uint8_t *dst = &s->vga.vram_ptr[dstaddr & s->cirrus_addr_mask]; |
| 29 | *dst = ROP_FN(*dst, src); |
| 30 | } |
| 31 | |
| 32 | static inline void glue(rop_tr_8_, ROP_NAME)(CirrusVGAState *s, |
| 33 | uint32_t dstaddr, uint8_t src, |
| 34 | uint8_t transp) |
| 35 | { |
| 36 | uint8_t *dst = &s->vga.vram_ptr[dstaddr & s->cirrus_addr_mask]; |
| 37 | uint8_t pixel = ROP_FN(*dst, src); |
| 38 | if (pixel != transp) { |
| 39 | *dst = pixel; |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | static inline void glue(rop_16_, ROP_NAME)(CirrusVGAState *s, |
| 44 | uint32_t dstaddr, uint16_t src) |
| 45 | { |
| 46 | uint16_t *dst = (uint16_t *) |
| 47 | (&s->vga.vram_ptr[dstaddr & s->cirrus_addr_mask & ~1]); |
| 48 | *dst = ROP_FN(*dst, src); |
| 49 | } |
| 50 | |
| 51 | static inline void glue(rop_tr_16_, ROP_NAME)(CirrusVGAState *s, |
| 52 | uint32_t dstaddr, uint16_t src, |
| 53 | uint16_t transp) |
| 54 | { |
| 55 | uint16_t *dst = (uint16_t *) |
| 56 | (&s->vga.vram_ptr[dstaddr & s->cirrus_addr_mask & ~1]); |
| 57 | uint16_t pixel = ROP_FN(*dst, src); |
| 58 | if (pixel != transp) { |
| 59 | *dst = pixel; |
| 60 | } |
| 61 | } |
| 62 | |
| 63 | static inline void glue(rop_32_, ROP_NAME)(CirrusVGAState *s, |
| 64 | uint32_t dstaddr, uint32_t src) |
| 65 | { |
| 66 | uint32_t *dst = (uint32_t *) |
| 67 | (&s->vga.vram_ptr[dstaddr & s->cirrus_addr_mask & ~3]); |
| 68 | *dst = ROP_FN(*dst, src); |
| 69 | } |
| 70 | |
| 71 | #define ROP_OP(st, d, s) glue(rop_8_, ROP_NAME)(st, d, s) |
| 72 | #define ROP_OP_TR(st, d, s, t) glue(rop_tr_8_, ROP_NAME)(st, d, s, t) |
| 73 | #define ROP_OP_16(st, d, s) glue(rop_16_, ROP_NAME)(st, d, s) |
| 74 | #define ROP_OP_TR_16(st, d, s, t) glue(rop_tr_16_, ROP_NAME)(st, d, s, t) |
| 75 | #define ROP_OP_32(st, d, s) glue(rop_32_, ROP_NAME)(st, d, s) |
| 76 | #undef ROP_FN |
| 77 | |
| 78 | static void |
| 79 | glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s, |
| 80 | uint32_t dstaddr, |
| 81 | uint32_t srcaddr, |
| 82 | int dstpitch, int srcpitch, |
| 83 | int bltwidth, int bltheight) |
| 84 | { |
| 85 | int x,y; |
| 86 | dstpitch -= bltwidth; |
| 87 | srcpitch -= bltwidth; |
| 88 | |
| 89 | if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) { |
| 90 | return; |
| 91 | } |
| 92 | |
| 93 | for (y = 0; y < bltheight; y++) { |
| 94 | for (x = 0; x < bltwidth; x++) { |
| 95 | ROP_OP(s, dstaddr, cirrus_src(s, srcaddr)); |
| 96 | dstaddr++; |
| 97 | srcaddr++; |
| 98 | } |
| 99 | dstaddr += dstpitch; |
| 100 | srcaddr += srcpitch; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | static void |
| 105 | glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s, |
| 106 | uint32_t dstaddr, |
| 107 | uint32_t srcaddr, |
| 108 | int dstpitch, int srcpitch, |
| 109 | int bltwidth, int bltheight) |
| 110 | { |
| 111 | int x,y; |
| 112 | dstpitch += bltwidth; |
| 113 | srcpitch += bltwidth; |
| 114 | for (y = 0; y < bltheight; y++) { |
| 115 | for (x = 0; x < bltwidth; x++) { |
| 116 | ROP_OP(s, dstaddr, cirrus_src(s, srcaddr)); |
| 117 | dstaddr--; |
| 118 | srcaddr--; |
| 119 | } |
| 120 | dstaddr += dstpitch; |
| 121 | srcaddr += srcpitch; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | static void |
| 126 | glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_8)(CirrusVGAState *s, |
| 127 | uint32_t dstaddr, |
| 128 | uint32_t srcaddr, |
| 129 | int dstpitch, |
| 130 | int srcpitch, |
| 131 | int bltwidth, |
| 132 | int bltheight) |
| 133 | { |
| 134 | int x,y; |
| 135 | uint8_t transp = s->vga.gr[0x34]; |
| 136 | dstpitch -= bltwidth; |
| 137 | srcpitch -= bltwidth; |
| 138 | |
| 139 | if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) { |
| 140 | return; |
| 141 | } |
| 142 | |
| 143 | for (y = 0; y < bltheight; y++) { |
| 144 | for (x = 0; x < bltwidth; x++) { |
| 145 | ROP_OP_TR(s, dstaddr, cirrus_src(s, srcaddr), transp); |
| 146 | dstaddr++; |
| 147 | srcaddr++; |
| 148 | } |
| 149 | dstaddr += dstpitch; |
| 150 | srcaddr += srcpitch; |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | static void |
| 155 | glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s, |
| 156 | uint32_t dstaddr, |
| 157 | uint32_t srcaddr, |
| 158 | int dstpitch, |
| 159 | int srcpitch, |
| 160 | int bltwidth, |
| 161 | int bltheight) |
| 162 | { |
| 163 | int x,y; |
| 164 | uint8_t transp = s->vga.gr[0x34]; |
| 165 | dstpitch += bltwidth; |
| 166 | srcpitch += bltwidth; |
| 167 | for (y = 0; y < bltheight; y++) { |
| 168 | for (x = 0; x < bltwidth; x++) { |
| 169 | ROP_OP_TR(s, dstaddr, cirrus_src(s, srcaddr), transp); |
| 170 | dstaddr--; |
| 171 | srcaddr--; |
| 172 | } |
| 173 | dstaddr += dstpitch; |
| 174 | srcaddr += srcpitch; |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | static void |
| 179 | glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, |
| 180 | uint32_t dstaddr, |
| 181 | uint32_t srcaddr, |
| 182 | int dstpitch, |
| 183 | int srcpitch, |
| 184 | int bltwidth, |
| 185 | int bltheight) |
| 186 | { |
| 187 | int x,y; |
| 188 | uint16_t transp = s->vga.gr[0x34] | (uint16_t)s->vga.gr[0x35] << 8; |
| 189 | dstpitch -= bltwidth; |
| 190 | srcpitch -= bltwidth; |
| 191 | |
| 192 | if (bltheight > 1 && (dstpitch < 0 || srcpitch < 0)) { |
| 193 | return; |
| 194 | } |
| 195 | |
| 196 | for (y = 0; y < bltheight; y++) { |
| 197 | for (x = 0; x < bltwidth; x+=2) { |
| 198 | ROP_OP_TR_16(s, dstaddr, cirrus_src16(s, srcaddr), transp); |
| 199 | dstaddr += 2; |
| 200 | srcaddr += 2; |
| 201 | } |
| 202 | dstaddr += dstpitch; |
| 203 | srcaddr += srcpitch; |
| 204 | } |
| 205 | } |
| 206 | |
| 207 | static void |
| 208 | glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s, |
| 209 | uint32_t dstaddr, |
| 210 | uint32_t srcaddr, |
| 211 | int dstpitch, |
| 212 | int srcpitch, |
| 213 | int bltwidth, |
| 214 | int bltheight) |
| 215 | { |
| 216 | int x,y; |
| 217 | uint16_t transp = s->vga.gr[0x34] | (uint16_t)s->vga.gr[0x35] << 8; |
| 218 | dstpitch += bltwidth; |
| 219 | srcpitch += bltwidth; |
| 220 | for (y = 0; y < bltheight; y++) { |
| 221 | for (x = 0; x < bltwidth; x+=2) { |
| 222 | ROP_OP_TR_16(s, dstaddr - 1, cirrus_src16(s, srcaddr - 1), transp); |
| 223 | dstaddr -= 2; |
| 224 | srcaddr -= 2; |
| 225 | } |
| 226 | dstaddr += dstpitch; |
| 227 | srcaddr += srcpitch; |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | #define DEPTH 8 |
| 232 | #include "cirrus_vga_rop2.h" |
| 233 | |
| 234 | #define DEPTH 16 |
| 235 | #include "cirrus_vga_rop2.h" |
| 236 | |
| 237 | #define DEPTH 24 |
| 238 | #include "cirrus_vga_rop2.h" |
| 239 | |
| 240 | #define DEPTH 32 |
| 241 | #include "cirrus_vga_rop2.h" |
| 242 | |
| 243 | #undef ROP_NAME |
| 244 | #undef ROP_OP |
| 245 | #undef ROP_OP_16 |
| 246 | #undef ROP_OP_32 |