sm501: Add missing arbitration control register
[qemu.git] / hw / display / vga-helpers.h
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 static inline void vga_draw_glyph_line(uint8_t *d, uint32_t font_data,
26 uint32_t xorcol, uint32_t bgcol)
27 {
28 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
29 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
30 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
31 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
32 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
33 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
34 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
35 ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
36 }
37
38 static void vga_draw_glyph8(uint8_t *d, int linesize,
39 const uint8_t *font_ptr, int h,
40 uint32_t fgcol, uint32_t bgcol)
41 {
42 uint32_t font_data, xorcol;
43
44 xorcol = bgcol ^ fgcol;
45 do {
46 font_data = font_ptr[0];
47 vga_draw_glyph_line(d, font_data, xorcol, bgcol);
48 font_ptr += 4;
49 d += linesize;
50 } while (--h);
51 }
52
53 static void vga_draw_glyph16(uint8_t *d, int linesize,
54 const uint8_t *font_ptr, int h,
55 uint32_t fgcol, uint32_t bgcol)
56 {
57 uint32_t font_data, xorcol;
58
59 xorcol = bgcol ^ fgcol;
60 do {
61 font_data = font_ptr[0];
62 vga_draw_glyph_line(d, expand4to8[font_data >> 4],
63 xorcol, bgcol);
64 vga_draw_glyph_line(d + 32, expand4to8[font_data & 0x0f],
65 xorcol, bgcol);
66 font_ptr += 4;
67 d += linesize;
68 } while (--h);
69 }
70
71 static void vga_draw_glyph9(uint8_t *d, int linesize,
72 const uint8_t *font_ptr, int h,
73 uint32_t fgcol, uint32_t bgcol, int dup9)
74 {
75 uint32_t font_data, xorcol, v;
76
77 xorcol = bgcol ^ fgcol;
78 do {
79 font_data = font_ptr[0];
80 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
81 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
82 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
83 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
84 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
85 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
86 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
87 v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
88 ((uint32_t *)d)[7] = v;
89 if (dup9)
90 ((uint32_t *)d)[8] = v;
91 else
92 ((uint32_t *)d)[8] = bgcol;
93 font_ptr += 4;
94 d += linesize;
95 } while (--h);
96 }
97
98 /*
99 * 4 color mode
100 */
101 static void vga_draw_line2(VGACommonState *s1, uint8_t *d,
102 const uint8_t *s, int width)
103 {
104 uint32_t plane_mask, *palette, data, v;
105 int x;
106
107 palette = s1->last_palette;
108 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
109 width >>= 3;
110 for(x = 0; x < width; x++) {
111 data = ((uint32_t *)s)[0];
112 data &= plane_mask;
113 v = expand2[GET_PLANE(data, 0)];
114 v |= expand2[GET_PLANE(data, 2)] << 2;
115 ((uint32_t *)d)[0] = palette[v >> 12];
116 ((uint32_t *)d)[1] = palette[(v >> 8) & 0xf];
117 ((uint32_t *)d)[2] = palette[(v >> 4) & 0xf];
118 ((uint32_t *)d)[3] = palette[(v >> 0) & 0xf];
119
120 v = expand2[GET_PLANE(data, 1)];
121 v |= expand2[GET_PLANE(data, 3)] << 2;
122 ((uint32_t *)d)[4] = palette[v >> 12];
123 ((uint32_t *)d)[5] = palette[(v >> 8) & 0xf];
124 ((uint32_t *)d)[6] = palette[(v >> 4) & 0xf];
125 ((uint32_t *)d)[7] = palette[(v >> 0) & 0xf];
126 d += 32;
127 s += 4;
128 }
129 }
130
131 #define PUT_PIXEL2(d, n, v) \
132 ((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v)
133
134 /*
135 * 4 color mode, dup2 horizontal
136 */
137 static void vga_draw_line2d2(VGACommonState *s1, uint8_t *d,
138 const uint8_t *s, int width)
139 {
140 uint32_t plane_mask, *palette, data, v;
141 int x;
142
143 palette = s1->last_palette;
144 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
145 width >>= 3;
146 for(x = 0; x < width; x++) {
147 data = ((uint32_t *)s)[0];
148 data &= plane_mask;
149 v = expand2[GET_PLANE(data, 0)];
150 v |= expand2[GET_PLANE(data, 2)] << 2;
151 PUT_PIXEL2(d, 0, palette[v >> 12]);
152 PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]);
153 PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]);
154 PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]);
155
156 v = expand2[GET_PLANE(data, 1)];
157 v |= expand2[GET_PLANE(data, 3)] << 2;
158 PUT_PIXEL2(d, 4, palette[v >> 12]);
159 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
160 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
161 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
162 d += 64;
163 s += 4;
164 }
165 }
166
167 /*
168 * 16 color mode
169 */
170 static void vga_draw_line4(VGACommonState *s1, uint8_t *d,
171 const uint8_t *s, int width)
172 {
173 uint32_t plane_mask, data, v, *palette;
174 int x;
175
176 palette = s1->last_palette;
177 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
178 width >>= 3;
179 for(x = 0; x < width; x++) {
180 data = ((uint32_t *)s)[0];
181 data &= plane_mask;
182 v = expand4[GET_PLANE(data, 0)];
183 v |= expand4[GET_PLANE(data, 1)] << 1;
184 v |= expand4[GET_PLANE(data, 2)] << 2;
185 v |= expand4[GET_PLANE(data, 3)] << 3;
186 ((uint32_t *)d)[0] = palette[v >> 28];
187 ((uint32_t *)d)[1] = palette[(v >> 24) & 0xf];
188 ((uint32_t *)d)[2] = palette[(v >> 20) & 0xf];
189 ((uint32_t *)d)[3] = palette[(v >> 16) & 0xf];
190 ((uint32_t *)d)[4] = palette[(v >> 12) & 0xf];
191 ((uint32_t *)d)[5] = palette[(v >> 8) & 0xf];
192 ((uint32_t *)d)[6] = palette[(v >> 4) & 0xf];
193 ((uint32_t *)d)[7] = palette[(v >> 0) & 0xf];
194 d += 32;
195 s += 4;
196 }
197 }
198
199 /*
200 * 16 color mode, dup2 horizontal
201 */
202 static void vga_draw_line4d2(VGACommonState *s1, uint8_t *d,
203 const uint8_t *s, int width)
204 {
205 uint32_t plane_mask, data, v, *palette;
206 int x;
207
208 palette = s1->last_palette;
209 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
210 width >>= 3;
211 for(x = 0; x < width; x++) {
212 data = ((uint32_t *)s)[0];
213 data &= plane_mask;
214 v = expand4[GET_PLANE(data, 0)];
215 v |= expand4[GET_PLANE(data, 1)] << 1;
216 v |= expand4[GET_PLANE(data, 2)] << 2;
217 v |= expand4[GET_PLANE(data, 3)] << 3;
218 PUT_PIXEL2(d, 0, palette[v >> 28]);
219 PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]);
220 PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]);
221 PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]);
222 PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]);
223 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
224 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
225 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
226 d += 64;
227 s += 4;
228 }
229 }
230
231 /*
232 * 256 color mode, double pixels
233 *
234 * XXX: add plane_mask support (never used in standard VGA modes)
235 */
236 static void vga_draw_line8d2(VGACommonState *s1, uint8_t *d,
237 const uint8_t *s, int width)
238 {
239 uint32_t *palette;
240 int x;
241
242 palette = s1->last_palette;
243 width >>= 3;
244 for(x = 0; x < width; x++) {
245 PUT_PIXEL2(d, 0, palette[s[0]]);
246 PUT_PIXEL2(d, 1, palette[s[1]]);
247 PUT_PIXEL2(d, 2, palette[s[2]]);
248 PUT_PIXEL2(d, 3, palette[s[3]]);
249 d += 32;
250 s += 4;
251 }
252 }
253
254 /*
255 * standard 256 color mode
256 *
257 * XXX: add plane_mask support (never used in standard VGA modes)
258 */
259 static void vga_draw_line8(VGACommonState *s1, uint8_t *d,
260 const uint8_t *s, int width)
261 {
262 uint32_t *palette;
263 int x;
264
265 palette = s1->last_palette;
266 width >>= 3;
267 for(x = 0; x < width; x++) {
268 ((uint32_t *)d)[0] = palette[s[0]];
269 ((uint32_t *)d)[1] = palette[s[1]];
270 ((uint32_t *)d)[2] = palette[s[2]];
271 ((uint32_t *)d)[3] = palette[s[3]];
272 ((uint32_t *)d)[4] = palette[s[4]];
273 ((uint32_t *)d)[5] = palette[s[5]];
274 ((uint32_t *)d)[6] = palette[s[6]];
275 ((uint32_t *)d)[7] = palette[s[7]];
276 d += 32;
277 s += 8;
278 }
279 }
280
281 /*
282 * 15 bit color
283 */
284 static void vga_draw_line15_le(VGACommonState *s1, uint8_t *d,
285 const uint8_t *s, int width)
286 {
287 int w;
288 uint32_t v, r, g, b;
289
290 w = width;
291 do {
292 v = lduw_le_p((void *)s);
293 r = (v >> 7) & 0xf8;
294 g = (v >> 2) & 0xf8;
295 b = (v << 3) & 0xf8;
296 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
297 s += 2;
298 d += 4;
299 } while (--w != 0);
300 }
301
302 static void vga_draw_line15_be(VGACommonState *s1, uint8_t *d,
303 const uint8_t *s, int width)
304 {
305 int w;
306 uint32_t v, r, g, b;
307
308 w = width;
309 do {
310 v = lduw_be_p((void *)s);
311 r = (v >> 7) & 0xf8;
312 g = (v >> 2) & 0xf8;
313 b = (v << 3) & 0xf8;
314 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
315 s += 2;
316 d += 4;
317 } while (--w != 0);
318 }
319
320 /*
321 * 16 bit color
322 */
323 static void vga_draw_line16_le(VGACommonState *s1, uint8_t *d,
324 const uint8_t *s, int width)
325 {
326 int w;
327 uint32_t v, r, g, b;
328
329 w = width;
330 do {
331 v = lduw_le_p((void *)s);
332 r = (v >> 8) & 0xf8;
333 g = (v >> 3) & 0xfc;
334 b = (v << 3) & 0xf8;
335 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
336 s += 2;
337 d += 4;
338 } while (--w != 0);
339 }
340
341 static void vga_draw_line16_be(VGACommonState *s1, uint8_t *d,
342 const uint8_t *s, int width)
343 {
344 int w;
345 uint32_t v, r, g, b;
346
347 w = width;
348 do {
349 v = lduw_be_p((void *)s);
350 r = (v >> 8) & 0xf8;
351 g = (v >> 3) & 0xfc;
352 b = (v << 3) & 0xf8;
353 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
354 s += 2;
355 d += 4;
356 } while (--w != 0);
357 }
358
359 /*
360 * 24 bit color
361 */
362 static void vga_draw_line24_le(VGACommonState *s1, uint8_t *d,
363 const uint8_t *s, int width)
364 {
365 int w;
366 uint32_t r, g, b;
367
368 w = width;
369 do {
370 b = s[0];
371 g = s[1];
372 r = s[2];
373 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
374 s += 3;
375 d += 4;
376 } while (--w != 0);
377 }
378
379 static void vga_draw_line24_be(VGACommonState *s1, uint8_t *d,
380 const uint8_t *s, int width)
381 {
382 int w;
383 uint32_t r, g, b;
384
385 w = width;
386 do {
387 r = s[0];
388 g = s[1];
389 b = s[2];
390 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
391 s += 3;
392 d += 4;
393 } while (--w != 0);
394 }
395
396 /*
397 * 32 bit color
398 */
399 static void vga_draw_line32_le(VGACommonState *s1, uint8_t *d,
400 const uint8_t *s, int width)
401 {
402 #ifndef HOST_WORDS_BIGENDIAN
403 memcpy(d, s, width * 4);
404 #else
405 int w;
406 uint32_t r, g, b;
407
408 w = width;
409 do {
410 b = s[0];
411 g = s[1];
412 r = s[2];
413 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
414 s += 4;
415 d += 4;
416 } while (--w != 0);
417 #endif
418 }
419
420 static void vga_draw_line32_be(VGACommonState *s1, uint8_t *d,
421 const uint8_t *s, int width)
422 {
423 #ifdef HOST_WORDS_BIGENDIAN
424 memcpy(d, s, width * 4);
425 #else
426 int w;
427 uint32_t r, g, b;
428
429 w = width;
430 do {
431 r = s[1];
432 g = s[2];
433 b = s[3];
434 ((uint32_t *)d)[0] = rgb_to_pixel32(r, g, b);
435 s += 4;
436 d += 4;
437 } while (--w != 0);
438 #endif
439 }