root / hw / vga_template.h @ 17b0018b
History | View | Annotate | Download (13.2 kB)
| 1 |
/*
|
|---|---|
| 2 |
* QEMU VGA Emulator templates
|
| 3 |
*
|
| 4 |
* Copyright (c) 2003 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 |
#if DEPTH == 8 |
| 26 |
#define BPP 1 |
| 27 |
#define PIXEL_TYPE uint8_t
|
| 28 |
#elif DEPTH == 15 || DEPTH == 16 |
| 29 |
#define BPP 2 |
| 30 |
#define PIXEL_TYPE uint16_t
|
| 31 |
#elif DEPTH == 32 |
| 32 |
#define BPP 4 |
| 33 |
#define PIXEL_TYPE uint32_t
|
| 34 |
#else
|
| 35 |
#error unsupport depth
|
| 36 |
#endif
|
| 37 |
|
| 38 |
#if DEPTH != 15 |
| 39 |
|
| 40 |
static inline void glue(vga_draw_glyph_line_, DEPTH)(uint8_t *d, |
| 41 |
uint32_t font_data, |
| 42 |
uint32_t xorcol, |
| 43 |
uint32_t bgcol) |
| 44 |
{
|
| 45 |
#if BPP == 1 |
| 46 |
((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol; |
| 47 |
((uint32_t *)d)[3] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol; |
| 48 |
#elif BPP == 2 |
| 49 |
((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol; |
| 50 |
((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol; |
| 51 |
((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol; |
| 52 |
((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol; |
| 53 |
#else
|
| 54 |
((uint32_t *)d)[0] = ((-(font_data >> 7)) & xorcol) ^ bgcol; |
| 55 |
((uint32_t *)d)[1] = ((-(font_data >> 6) & 1) & xorcol) ^ bgcol; |
| 56 |
((uint32_t *)d)[2] = ((-(font_data >> 5) & 1) & xorcol) ^ bgcol; |
| 57 |
((uint32_t *)d)[3] = ((-(font_data >> 4) & 1) & xorcol) ^ bgcol; |
| 58 |
((uint32_t *)d)[4] = ((-(font_data >> 3) & 1) & xorcol) ^ bgcol; |
| 59 |
((uint32_t *)d)[5] = ((-(font_data >> 2) & 1) & xorcol) ^ bgcol; |
| 60 |
((uint32_t *)d)[6] = ((-(font_data >> 1) & 1) & xorcol) ^ bgcol; |
| 61 |
((uint32_t *)d)[7] = ((-(font_data >> 0) & 1) & xorcol) ^ bgcol; |
| 62 |
#endif
|
| 63 |
} |
| 64 |
|
| 65 |
static void glue(vga_draw_glyph8_, DEPTH)(uint8_t *d, int linesize, |
| 66 |
const uint8_t *font_ptr, int h, |
| 67 |
uint32_t fgcol, uint32_t bgcol) |
| 68 |
{
|
| 69 |
uint32_t font_data, xorcol; |
| 70 |
|
| 71 |
xorcol = bgcol ^ fgcol; |
| 72 |
do {
|
| 73 |
font_data = font_ptr[0];
|
| 74 |
glue(vga_draw_glyph_line_, DEPTH)(d, font_data, xorcol, bgcol); |
| 75 |
font_ptr += 4;
|
| 76 |
d += linesize; |
| 77 |
} while (--h);
|
| 78 |
} |
| 79 |
|
| 80 |
static void glue(vga_draw_glyph16_, DEPTH)(uint8_t *d, int linesize, |
| 81 |
const uint8_t *font_ptr, int h, |
| 82 |
uint32_t fgcol, uint32_t bgcol) |
| 83 |
{
|
| 84 |
uint32_t font_data, xorcol; |
| 85 |
|
| 86 |
xorcol = bgcol ^ fgcol; |
| 87 |
do {
|
| 88 |
font_data = font_ptr[0];
|
| 89 |
glue(vga_draw_glyph_line_, DEPTH)(d, |
| 90 |
expand4to8[font_data >> 4],
|
| 91 |
xorcol, bgcol); |
| 92 |
glue(vga_draw_glyph_line_, DEPTH)(d + 8 * BPP,
|
| 93 |
expand4to8[font_data & 0x0f],
|
| 94 |
xorcol, bgcol); |
| 95 |
font_ptr += 4;
|
| 96 |
d += linesize; |
| 97 |
} while (--h);
|
| 98 |
} |
| 99 |
|
| 100 |
static void glue(vga_draw_glyph9_, DEPTH)(uint8_t *d, int linesize, |
| 101 |
const uint8_t *font_ptr, int h, |
| 102 |
uint32_t fgcol, uint32_t bgcol, int dup9)
|
| 103 |
{
|
| 104 |
uint32_t font_data, xorcol, v; |
| 105 |
|
| 106 |
xorcol = bgcol ^ fgcol; |
| 107 |
do {
|
| 108 |
font_data = font_ptr[0];
|
| 109 |
/* XXX: unaligned accesses are done */
|
| 110 |
#if BPP == 1 |
| 111 |
((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol; |
| 112 |
v = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol; |
| 113 |
((uint32_t *)d)[3] = v;
|
| 114 |
if (dup9)
|
| 115 |
((uint8_t *)d)[8] = v >> (24 * (1 - BIG)); |
| 116 |
else
|
| 117 |
((uint8_t *)d)[8] = bgcol;
|
| 118 |
|
| 119 |
#elif BPP == 2 |
| 120 |
((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol; |
| 121 |
((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol; |
| 122 |
((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol; |
| 123 |
v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol; |
| 124 |
((uint32_t *)d)[3] = v;
|
| 125 |
if (dup9)
|
| 126 |
((uint16_t *)d)[8] = v >> (16 * (1 - BIG)); |
| 127 |
else
|
| 128 |
((uint16_t *)d)[8] = bgcol;
|
| 129 |
#else
|
| 130 |
((uint32_t *)d)[0] = ((-(font_data >> 7)) & xorcol) ^ bgcol; |
| 131 |
((uint32_t *)d)[1] = ((-(font_data >> 6) & 1) & xorcol) ^ bgcol; |
| 132 |
((uint32_t *)d)[2] = ((-(font_data >> 5) & 1) & xorcol) ^ bgcol; |
| 133 |
((uint32_t *)d)[3] = ((-(font_data >> 4) & 1) & xorcol) ^ bgcol; |
| 134 |
((uint32_t *)d)[4] = ((-(font_data >> 3) & 1) & xorcol) ^ bgcol; |
| 135 |
((uint32_t *)d)[5] = ((-(font_data >> 2) & 1) & xorcol) ^ bgcol; |
| 136 |
((uint32_t *)d)[6] = ((-(font_data >> 1) & 1) & xorcol) ^ bgcol; |
| 137 |
v = ((-(font_data >> 0) & 1) & xorcol) ^ bgcol; |
| 138 |
((uint32_t *)d)[7] = v;
|
| 139 |
if (dup9)
|
| 140 |
((uint32_t *)d)[8] = v;
|
| 141 |
else
|
| 142 |
((uint32_t *)d)[8] = bgcol;
|
| 143 |
#endif
|
| 144 |
font_ptr += 4;
|
| 145 |
d += linesize; |
| 146 |
} while (--h);
|
| 147 |
} |
| 148 |
|
| 149 |
/*
|
| 150 |
* 4 color mode
|
| 151 |
*/
|
| 152 |
static void glue(vga_draw_line2_, DEPTH)(VGAState *s1, uint8_t *d, |
| 153 |
const uint8_t *s, int width) |
| 154 |
{
|
| 155 |
uint32_t plane_mask, *palette, data, v; |
| 156 |
int x;
|
| 157 |
|
| 158 |
palette = s1->last_palette; |
| 159 |
plane_mask = mask16[s1->ar[0x12] & 0xf]; |
| 160 |
width >>= 3;
|
| 161 |
for(x = 0; x < width; x++) { |
| 162 |
data = ((uint32_t *)s)[0];
|
| 163 |
data &= plane_mask; |
| 164 |
v = expand2[GET_PLANE(data, 0)];
|
| 165 |
v |= expand2[GET_PLANE(data, 2)] << 2; |
| 166 |
((PIXEL_TYPE *)d)[0] = palette[v >> 12]; |
| 167 |
((PIXEL_TYPE *)d)[1] = palette[(v >> 8) & 0xf]; |
| 168 |
((PIXEL_TYPE *)d)[2] = palette[(v >> 4) & 0xf]; |
| 169 |
((PIXEL_TYPE *)d)[3] = palette[(v >> 0) & 0xf]; |
| 170 |
|
| 171 |
v = expand2[GET_PLANE(data, 1)];
|
| 172 |
v |= expand2[GET_PLANE(data, 3)] << 2; |
| 173 |
((PIXEL_TYPE *)d)[4] = palette[v >> 12]; |
| 174 |
((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf]; |
| 175 |
((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf]; |
| 176 |
((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf]; |
| 177 |
d += BPP * 8;
|
| 178 |
s += 4;
|
| 179 |
} |
| 180 |
} |
| 181 |
|
| 182 |
#if BPP == 1 |
| 183 |
#define PUT_PIXEL2(d, n, v) ((uint16_t *)d)[(n)] = (v)
|
| 184 |
#elif BPP == 2 |
| 185 |
#define PUT_PIXEL2(d, n, v) ((uint32_t *)d)[(n)] = (v)
|
| 186 |
#else
|
| 187 |
#define PUT_PIXEL2(d, n, v) \
|
| 188 |
((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v) |
| 189 |
#endif
|
| 190 |
|
| 191 |
/*
|
| 192 |
* 4 color mode, dup2 horizontal
|
| 193 |
*/
|
| 194 |
static void glue(vga_draw_line2d2_, DEPTH)(VGAState *s1, uint8_t *d, |
| 195 |
const uint8_t *s, int width) |
| 196 |
{
|
| 197 |
uint32_t plane_mask, *palette, data, v; |
| 198 |
int x;
|
| 199 |
|
| 200 |
palette = s1->last_palette; |
| 201 |
plane_mask = mask16[s1->ar[0x12] & 0xf]; |
| 202 |
width >>= 3;
|
| 203 |
for(x = 0; x < width; x++) { |
| 204 |
data = ((uint32_t *)s)[0];
|
| 205 |
data &= plane_mask; |
| 206 |
v = expand2[GET_PLANE(data, 0)];
|
| 207 |
v |= expand2[GET_PLANE(data, 2)] << 2; |
| 208 |
PUT_PIXEL2(d, 0, palette[v >> 12]); |
| 209 |
PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]); |
| 210 |
PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]); |
| 211 |
PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]); |
| 212 |
|
| 213 |
v = expand2[GET_PLANE(data, 1)];
|
| 214 |
v |= expand2[GET_PLANE(data, 3)] << 2; |
| 215 |
PUT_PIXEL2(d, 4, palette[v >> 12]); |
| 216 |
PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]); |
| 217 |
PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]); |
| 218 |
PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]); |
| 219 |
d += BPP * 16;
|
| 220 |
s += 4;
|
| 221 |
} |
| 222 |
} |
| 223 |
|
| 224 |
/*
|
| 225 |
* 16 color mode
|
| 226 |
*/
|
| 227 |
static void glue(vga_draw_line4_, DEPTH)(VGAState *s1, uint8_t *d, |
| 228 |
const uint8_t *s, int width) |
| 229 |
{
|
| 230 |
uint32_t plane_mask, data, v, *palette; |
| 231 |
int x;
|
| 232 |
|
| 233 |
palette = s1->last_palette; |
| 234 |
plane_mask = mask16[s1->ar[0x12] & 0xf]; |
| 235 |
width >>= 3;
|
| 236 |
for(x = 0; x < width; x++) { |
| 237 |
data = ((uint32_t *)s)[0];
|
| 238 |
data &= plane_mask; |
| 239 |
v = expand4[GET_PLANE(data, 0)];
|
| 240 |
v |= expand4[GET_PLANE(data, 1)] << 1; |
| 241 |
v |= expand4[GET_PLANE(data, 2)] << 2; |
| 242 |
v |= expand4[GET_PLANE(data, 3)] << 3; |
| 243 |
((PIXEL_TYPE *)d)[0] = palette[v >> 28]; |
| 244 |
((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf]; |
| 245 |
((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf]; |
| 246 |
((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf]; |
| 247 |
((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf]; |
| 248 |
((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf]; |
| 249 |
((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf]; |
| 250 |
((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf]; |
| 251 |
d += BPP * 8;
|
| 252 |
s += 4;
|
| 253 |
} |
| 254 |
} |
| 255 |
|
| 256 |
/*
|
| 257 |
* 16 color mode, dup2 horizontal
|
| 258 |
*/
|
| 259 |
static void glue(vga_draw_line4d2_, DEPTH)(VGAState *s1, uint8_t *d, |
| 260 |
const uint8_t *s, int width) |
| 261 |
{
|
| 262 |
uint32_t plane_mask, data, v, *palette; |
| 263 |
int x;
|
| 264 |
|
| 265 |
palette = s1->last_palette; |
| 266 |
plane_mask = mask16[s1->ar[0x12] & 0xf]; |
| 267 |
width >>= 3;
|
| 268 |
for(x = 0; x < width; x++) { |
| 269 |
data = ((uint32_t *)s)[0];
|
| 270 |
data &= plane_mask; |
| 271 |
v = expand4[GET_PLANE(data, 0)];
|
| 272 |
v |= expand4[GET_PLANE(data, 1)] << 1; |
| 273 |
v |= expand4[GET_PLANE(data, 2)] << 2; |
| 274 |
v |= expand4[GET_PLANE(data, 3)] << 3; |
| 275 |
PUT_PIXEL2(d, 0, palette[v >> 28]); |
| 276 |
PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]); |
| 277 |
PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]); |
| 278 |
PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]); |
| 279 |
PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]); |
| 280 |
PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]); |
| 281 |
PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]); |
| 282 |
PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]); |
| 283 |
d += BPP * 16;
|
| 284 |
s += 4;
|
| 285 |
} |
| 286 |
} |
| 287 |
|
| 288 |
/*
|
| 289 |
* 256 color mode, double pixels
|
| 290 |
*
|
| 291 |
* XXX: add plane_mask support (never used in standard VGA modes)
|
| 292 |
*/
|
| 293 |
static void glue(vga_draw_line8d2_, DEPTH)(VGAState *s1, uint8_t *d, |
| 294 |
const uint8_t *s, int width) |
| 295 |
{
|
| 296 |
uint32_t *palette; |
| 297 |
int x;
|
| 298 |
|
| 299 |
palette = s1->last_palette; |
| 300 |
width >>= 3;
|
| 301 |
for(x = 0; x < width; x++) { |
| 302 |
PUT_PIXEL2(d, 0, palette[s[0]]); |
| 303 |
PUT_PIXEL2(d, 1, palette[s[1]]); |
| 304 |
PUT_PIXEL2(d, 2, palette[s[2]]); |
| 305 |
PUT_PIXEL2(d, 3, palette[s[3]]); |
| 306 |
d += BPP * 8;
|
| 307 |
s += 4;
|
| 308 |
} |
| 309 |
} |
| 310 |
|
| 311 |
/*
|
| 312 |
* standard 256 color mode
|
| 313 |
*
|
| 314 |
* XXX: add plane_mask support (never used in standard VGA modes)
|
| 315 |
*/
|
| 316 |
static void glue(vga_draw_line8_, DEPTH)(VGAState *s1, uint8_t *d, |
| 317 |
const uint8_t *s, int width) |
| 318 |
{
|
| 319 |
uint32_t *palette; |
| 320 |
int x;
|
| 321 |
|
| 322 |
palette = s1->last_palette; |
| 323 |
width >>= 3;
|
| 324 |
for(x = 0; x < width; x++) { |
| 325 |
((PIXEL_TYPE *)d)[0] = palette[s[0]]; |
| 326 |
((PIXEL_TYPE *)d)[1] = palette[s[1]]; |
| 327 |
((PIXEL_TYPE *)d)[2] = palette[s[2]]; |
| 328 |
((PIXEL_TYPE *)d)[3] = palette[s[3]]; |
| 329 |
((PIXEL_TYPE *)d)[4] = palette[s[4]]; |
| 330 |
((PIXEL_TYPE *)d)[5] = palette[s[5]]; |
| 331 |
((PIXEL_TYPE *)d)[6] = palette[s[6]]; |
| 332 |
((PIXEL_TYPE *)d)[7] = palette[s[7]]; |
| 333 |
d += BPP * 8;
|
| 334 |
s += 8;
|
| 335 |
} |
| 336 |
} |
| 337 |
|
| 338 |
#endif /* DEPTH != 15 */ |
| 339 |
|
| 340 |
|
| 341 |
/* XXX: optimize */
|
| 342 |
|
| 343 |
/*
|
| 344 |
* 15 bit color
|
| 345 |
*/
|
| 346 |
static void glue(vga_draw_line15_, DEPTH)(VGAState *s1, uint8_t *d, |
| 347 |
const uint8_t *s, int width) |
| 348 |
{
|
| 349 |
#if DEPTH == 15 && !defined(WORDS_BIGENDIAN) |
| 350 |
memcpy(d, s, width * 2);
|
| 351 |
#else
|
| 352 |
int w;
|
| 353 |
uint32_t v, r, g, b; |
| 354 |
|
| 355 |
w = width; |
| 356 |
do {
|
| 357 |
v = lduw((void *)s);
|
| 358 |
r = (v >> 7) & 0xf8; |
| 359 |
g = (v >> 2) & 0xf8; |
| 360 |
b = (v << 3) & 0xf8; |
| 361 |
((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
|
| 362 |
s += 2;
|
| 363 |
d += BPP; |
| 364 |
} while (--w != 0); |
| 365 |
#endif
|
| 366 |
} |
| 367 |
|
| 368 |
/*
|
| 369 |
* 16 bit color
|
| 370 |
*/
|
| 371 |
static void glue(vga_draw_line16_, DEPTH)(VGAState *s1, uint8_t *d, |
| 372 |
const uint8_t *s, int width) |
| 373 |
{
|
| 374 |
#if DEPTH == 16 && !defined(WORDS_BIGENDIAN) |
| 375 |
memcpy(d, s, width * 2);
|
| 376 |
#else
|
| 377 |
int w;
|
| 378 |
uint32_t v, r, g, b; |
| 379 |
|
| 380 |
w = width; |
| 381 |
do {
|
| 382 |
v = lduw((void *)s);
|
| 383 |
r = (v >> 8) & 0xf8; |
| 384 |
g = (v >> 3) & 0xfc; |
| 385 |
b = (v << 3) & 0xf8; |
| 386 |
((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
|
| 387 |
s += 2;
|
| 388 |
d += BPP; |
| 389 |
} while (--w != 0); |
| 390 |
#endif
|
| 391 |
} |
| 392 |
|
| 393 |
/*
|
| 394 |
* 32 bit color
|
| 395 |
*/
|
| 396 |
static void glue(vga_draw_line32_, DEPTH)(VGAState *s1, uint8_t *d, |
| 397 |
const uint8_t *s, int width) |
| 398 |
{
|
| 399 |
#if DEPTH == 32 && !defined(WORDS_BIGENDIAN) |
| 400 |
memcpy(d, s, width * 4);
|
| 401 |
#else
|
| 402 |
int w;
|
| 403 |
uint32_t r, g, b; |
| 404 |
|
| 405 |
w = width; |
| 406 |
do {
|
| 407 |
b = s[0];
|
| 408 |
g = s[1];
|
| 409 |
r = s[2];
|
| 410 |
((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, DEPTH)(r, g, b);
|
| 411 |
s += 4;
|
| 412 |
d += BPP; |
| 413 |
} while (--w != 0); |
| 414 |
#endif
|
| 415 |
} |
| 416 |
|
| 417 |
#undef PUT_PIXEL2
|
| 418 |
#undef DEPTH
|
| 419 |
#undef BPP
|
| 420 |
#undef PIXEL_TYPE
|