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e89f66ec
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1/*
2 * QEMU VGA Emulator templates
5fafdf24 3 *
e89f66ec 4 * Copyright (c) 2003 Fabrice Bellard
5fafdf24 5 *
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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
5fafdf24 27#define PIXEL_TYPE uint8_t
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28#elif DEPTH == 15 || DEPTH == 16
29#define BPP 2
5fafdf24 30#define PIXEL_TYPE uint16_t
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31#elif DEPTH == 32
32#define BPP 4
5fafdf24 33#define PIXEL_TYPE uint32_t
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34#else
35#error unsupport depth
36#endif
37
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38#ifdef BGR_FORMAT
39#define PIXEL_NAME glue(DEPTH, bgr)
40#else
41#define PIXEL_NAME DEPTH
42#endif /* BGR_FORMAT */
43
44#if DEPTH != 15 && !defined(BGR_FORMAT)
e89f66ec 45
5fafdf24 46static inline void glue(vga_draw_glyph_line_, DEPTH)(uint8_t *d,
17b0018b 47 uint32_t font_data,
5fafdf24 48 uint32_t xorcol,
17b0018b 49 uint32_t bgcol)
e89f66ec 50{
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51#if BPP == 1
52 ((uint32_t *)d)[0] = (dmask16[(font_data >> 4)] & xorcol) ^ bgcol;
188d8579 53 ((uint32_t *)d)[1] = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
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54#elif BPP == 2
55 ((uint32_t *)d)[0] = (dmask4[(font_data >> 6)] & xorcol) ^ bgcol;
56 ((uint32_t *)d)[1] = (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol;
57 ((uint32_t *)d)[2] = (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol;
58 ((uint32_t *)d)[3] = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
59#else
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60 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
61 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
62 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
63 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
64 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
65 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
66 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
67 ((uint32_t *)d)[7] = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
e89f66ec 68#endif
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69}
70
71static void glue(vga_draw_glyph8_, DEPTH)(uint8_t *d, int linesize,
72 const uint8_t *font_ptr, int h,
73 uint32_t fgcol, uint32_t bgcol)
74{
75 uint32_t font_data, xorcol;
3b46e624 76
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77 xorcol = bgcol ^ fgcol;
78 do {
79 font_data = font_ptr[0];
80 glue(vga_draw_glyph_line_, DEPTH)(d, font_data, xorcol, bgcol);
81 font_ptr += 4;
82 d += linesize;
83 } while (--h);
84}
85
86static void glue(vga_draw_glyph16_, DEPTH)(uint8_t *d, int linesize,
87 const uint8_t *font_ptr, int h,
88 uint32_t fgcol, uint32_t bgcol)
89{
90 uint32_t font_data, xorcol;
3b46e624 91
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92 xorcol = bgcol ^ fgcol;
93 do {
94 font_data = font_ptr[0];
5fafdf24
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95 glue(vga_draw_glyph_line_, DEPTH)(d,
96 expand4to8[font_data >> 4],
17b0018b 97 xorcol, bgcol);
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98 glue(vga_draw_glyph_line_, DEPTH)(d + 8 * BPP,
99 expand4to8[font_data & 0x0f],
17b0018b 100 xorcol, bgcol);
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101 font_ptr += 4;
102 d += linesize;
103 } while (--h);
104}
105
106static void glue(vga_draw_glyph9_, DEPTH)(uint8_t *d, int linesize,
5fafdf24 107 const uint8_t *font_ptr, int h,
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108 uint32_t fgcol, uint32_t bgcol, int dup9)
109{
110 uint32_t font_data, xorcol, v;
3b46e624 111
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112 xorcol = bgcol ^ fgcol;
113 do {
114 font_data = font_ptr[0];
e89f66ec 115#if BPP == 1
188d8579 116 cpu_to_32wu((uint32_t *)d, (dmask16[(font_data >> 4)] & xorcol) ^ bgcol);
e89f66ec 117 v = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
188d8579 118 cpu_to_32wu(((uint32_t *)d)+1, v);
e89f66ec 119 if (dup9)
39cf7803 120 ((uint8_t *)d)[8] = v >> (24 * (1 - BIG));
e89f66ec 121 else
39cf7803 122 ((uint8_t *)d)[8] = bgcol;
3b46e624 123
e89f66ec 124#elif BPP == 2
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125 cpu_to_32wu(((uint32_t *)d)+0, (dmask4[(font_data >> 6)] & xorcol) ^ bgcol);
126 cpu_to_32wu(((uint32_t *)d)+1, (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol);
127 cpu_to_32wu(((uint32_t *)d)+2, (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol);
e89f66ec 128 v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
188d8579 129 cpu_to_32wu(((uint32_t *)d)+3, v);
e89f66ec 130 if (dup9)
39cf7803 131 ((uint16_t *)d)[8] = v >> (16 * (1 - BIG));
e89f66ec 132 else
39cf7803 133 ((uint16_t *)d)[8] = bgcol;
e89f66ec 134#else
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135 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
136 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
137 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
138 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
139 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
140 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
141 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
142 v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
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143 ((uint32_t *)d)[7] = v;
144 if (dup9)
39cf7803 145 ((uint32_t *)d)[8] = v;
e89f66ec 146 else
39cf7803 147 ((uint32_t *)d)[8] = bgcol;
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148#endif
149 font_ptr += 4;
150 d += linesize;
151 } while (--h);
152}
153
5fafdf24 154/*
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155 * 4 color mode
156 */
cedd91d2 157static void glue(vga_draw_line2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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158 const uint8_t *s, int width)
159{
160 uint32_t plane_mask, *palette, data, v;
161 int x;
162
163 palette = s1->last_palette;
5e55efc9 164 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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165 width >>= 3;
166 for(x = 0; x < width; x++) {
167 data = ((uint32_t *)s)[0];
168 data &= plane_mask;
169 v = expand2[GET_PLANE(data, 0)];
170 v |= expand2[GET_PLANE(data, 2)] << 2;
171 ((PIXEL_TYPE *)d)[0] = palette[v >> 12];
172 ((PIXEL_TYPE *)d)[1] = palette[(v >> 8) & 0xf];
173 ((PIXEL_TYPE *)d)[2] = palette[(v >> 4) & 0xf];
174 ((PIXEL_TYPE *)d)[3] = palette[(v >> 0) & 0xf];
175
176 v = expand2[GET_PLANE(data, 1)];
177 v |= expand2[GET_PLANE(data, 3)] << 2;
178 ((PIXEL_TYPE *)d)[4] = palette[v >> 12];
179 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
180 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
181 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
182 d += BPP * 8;
183 s += 4;
184 }
185}
186
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187#if BPP == 1
188#define PUT_PIXEL2(d, n, v) ((uint16_t *)d)[(n)] = (v)
189#elif BPP == 2
190#define PUT_PIXEL2(d, n, v) ((uint32_t *)d)[(n)] = (v)
191#else
192#define PUT_PIXEL2(d, n, v) \
193((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v)
194#endif
195
5fafdf24 196/*
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197 * 4 color mode, dup2 horizontal
198 */
cedd91d2 199static void glue(vga_draw_line2d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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200 const uint8_t *s, int width)
201{
202 uint32_t plane_mask, *palette, data, v;
203 int x;
204
205 palette = s1->last_palette;
5e55efc9 206 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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207 width >>= 3;
208 for(x = 0; x < width; x++) {
209 data = ((uint32_t *)s)[0];
210 data &= plane_mask;
211 v = expand2[GET_PLANE(data, 0)];
212 v |= expand2[GET_PLANE(data, 2)] << 2;
213 PUT_PIXEL2(d, 0, palette[v >> 12]);
214 PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]);
215 PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]);
216 PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]);
217
218 v = expand2[GET_PLANE(data, 1)];
219 v |= expand2[GET_PLANE(data, 3)] << 2;
220 PUT_PIXEL2(d, 4, palette[v >> 12]);
221 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
222 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
223 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
224 d += BPP * 16;
225 s += 4;
226 }
227}
228
5fafdf24 229/*
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230 * 16 color mode
231 */
cedd91d2 232static void glue(vga_draw_line4_, DEPTH)(VGACommonState *s1, uint8_t *d,
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233 const uint8_t *s, int width)
234{
235 uint32_t plane_mask, data, v, *palette;
236 int x;
237
238 palette = s1->last_palette;
5e55efc9 239 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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240 width >>= 3;
241 for(x = 0; x < width; x++) {
242 data = ((uint32_t *)s)[0];
243 data &= plane_mask;
244 v = expand4[GET_PLANE(data, 0)];
245 v |= expand4[GET_PLANE(data, 1)] << 1;
246 v |= expand4[GET_PLANE(data, 2)] << 2;
247 v |= expand4[GET_PLANE(data, 3)] << 3;
248 ((PIXEL_TYPE *)d)[0] = palette[v >> 28];
249 ((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf];
250 ((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf];
251 ((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf];
252 ((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf];
253 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
254 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
255 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
256 d += BPP * 8;
257 s += 4;
258 }
259}
260
5fafdf24 261/*
17b0018b
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262 * 16 color mode, dup2 horizontal
263 */
cedd91d2 264static void glue(vga_draw_line4d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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265 const uint8_t *s, int width)
266{
267 uint32_t plane_mask, data, v, *palette;
268 int x;
269
270 palette = s1->last_palette;
5e55efc9 271 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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272 width >>= 3;
273 for(x = 0; x < width; x++) {
274 data = ((uint32_t *)s)[0];
275 data &= plane_mask;
276 v = expand4[GET_PLANE(data, 0)];
277 v |= expand4[GET_PLANE(data, 1)] << 1;
278 v |= expand4[GET_PLANE(data, 2)] << 2;
279 v |= expand4[GET_PLANE(data, 3)] << 3;
280 PUT_PIXEL2(d, 0, palette[v >> 28]);
281 PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]);
282 PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]);
283 PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]);
284 PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]);
285 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
286 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
287 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
288 d += BPP * 16;
289 s += 4;
290 }
291}
292
5fafdf24 293/*
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294 * 256 color mode, double pixels
295 *
296 * XXX: add plane_mask support (never used in standard VGA modes)
297 */
cedd91d2 298static void glue(vga_draw_line8d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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299 const uint8_t *s, int width)
300{
301 uint32_t *palette;
302 int x;
303
304 palette = s1->last_palette;
305 width >>= 3;
306 for(x = 0; x < width; x++) {
307 PUT_PIXEL2(d, 0, palette[s[0]]);
308 PUT_PIXEL2(d, 1, palette[s[1]]);
309 PUT_PIXEL2(d, 2, palette[s[2]]);
310 PUT_PIXEL2(d, 3, palette[s[3]]);
311 d += BPP * 8;
312 s += 4;
313 }
314}
315
5fafdf24 316/*
17b0018b 317 * standard 256 color mode
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318 *
319 * XXX: add plane_mask support (never used in standard VGA modes)
320 */
cedd91d2 321static void glue(vga_draw_line8_, DEPTH)(VGACommonState *s1, uint8_t *d,
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322 const uint8_t *s, int width)
323{
324 uint32_t *palette;
325 int x;
326
327 palette = s1->last_palette;
328 width >>= 3;
329 for(x = 0; x < width; x++) {
330 ((PIXEL_TYPE *)d)[0] = palette[s[0]];
331 ((PIXEL_TYPE *)d)[1] = palette[s[1]];
332 ((PIXEL_TYPE *)d)[2] = palette[s[2]];
333 ((PIXEL_TYPE *)d)[3] = palette[s[3]];
334 ((PIXEL_TYPE *)d)[4] = palette[s[4]];
335 ((PIXEL_TYPE *)d)[5] = palette[s[5]];
336 ((PIXEL_TYPE *)d)[6] = palette[s[6]];
337 ((PIXEL_TYPE *)d)[7] = palette[s[7]];
338 d += BPP * 8;
339 s += 8;
340 }
341}
342
343#endif /* DEPTH != 15 */
344
345
346/* XXX: optimize */
347
5fafdf24 348/*
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349 * 15 bit color
350 */
cedd91d2 351static void glue(vga_draw_line15_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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352 const uint8_t *s, int width)
353{
e2542fe2 354#if DEPTH == 15 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
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355 memcpy(d, s, width * 2);
356#else
357 int w;
358 uint32_t v, r, g, b;
359
360 w = width;
361 do {
61382a50 362 v = lduw_raw((void *)s);
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363 r = (v >> 7) & 0xf8;
364 g = (v >> 2) & 0xf8;
365 b = (v << 3) & 0xf8;
d3079cd2 366 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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367 s += 2;
368 d += BPP;
369 } while (--w != 0);
3b46e624 370#endif
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371}
372
5fafdf24 373/*
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374 * 16 bit color
375 */
cedd91d2 376static void glue(vga_draw_line16_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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377 const uint8_t *s, int width)
378{
e2542fe2 379#if DEPTH == 16 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
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380 memcpy(d, s, width * 2);
381#else
382 int w;
383 uint32_t v, r, g, b;
384
385 w = width;
386 do {
61382a50 387 v = lduw_raw((void *)s);
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388 r = (v >> 8) & 0xf8;
389 g = (v >> 3) & 0xfc;
390 b = (v << 3) & 0xf8;
d3079cd2 391 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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392 s += 2;
393 d += BPP;
394 } while (--w != 0);
3b46e624 395#endif
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396}
397
5fafdf24 398/*
4fa0f5d2
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399 * 24 bit color
400 */
cedd91d2 401static void glue(vga_draw_line24_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
4fa0f5d2
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402 const uint8_t *s, int width)
403{
404 int w;
405 uint32_t r, g, b;
406
407 w = width;
408 do {
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409#if defined(TARGET_WORDS_BIGENDIAN)
410 r = s[0];
411 g = s[1];
412 b = s[2];
413#else
4fa0f5d2
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414 b = s[0];
415 g = s[1];
416 r = s[2];
53c862a8 417#endif
d3079cd2 418 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
4fa0f5d2
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419 s += 3;
420 d += BPP;
421 } while (--w != 0);
422}
423
5fafdf24 424/*
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425 * 32 bit color
426 */
cedd91d2 427static void glue(vga_draw_line32_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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428 const uint8_t *s, int width)
429{
e2542fe2 430#if DEPTH == 32 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) && !defined(BGR_FORMAT)
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431 memcpy(d, s, width * 4);
432#else
433 int w;
434 uint32_t r, g, b;
435
436 w = width;
437 do {
53c862a8
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438#if defined(TARGET_WORDS_BIGENDIAN)
439 r = s[1];
440 g = s[2];
441 b = s[3];
442#else
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443 b = s[0];
444 g = s[1];
445 r = s[2];
53c862a8 446#endif
d3079cd2 447 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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448 s += 4;
449 d += BPP;
450 } while (--w != 0);
451#endif
452}
453
17b0018b 454#undef PUT_PIXEL2
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455#undef DEPTH
456#undef BPP
457#undef PIXEL_TYPE
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458#undef PIXEL_NAME
459#undef BGR_FORMAT