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Fix pc migration from qemu <= 1.5
[qemu.git] / hw / display / vga_template.h
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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
TS
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
7d579514 116 stl_p((uint32_t *)d, (dmask16[(font_data >> 4)] & xorcol) ^ bgcol);
e89f66ec 117 v = (dmask16[(font_data >> 0) & 0xf] & xorcol) ^ bgcol;
7d579514 118 stl_p(((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 stl_p(((uint32_t *)d)+0, (dmask4[(font_data >> 6)] & xorcol) ^ bgcol);
126 stl_p(((uint32_t *)d)+1,
127 (dmask4[(font_data >> 4) & 3] & xorcol) ^ bgcol);
128 stl_p(((uint32_t *)d)+2,
129 (dmask4[(font_data >> 2) & 3] & xorcol) ^ bgcol);
e89f66ec 130 v = (dmask4[(font_data >> 0) & 3] & xorcol) ^ bgcol;
7d579514 131 stl_p(((uint32_t *)d)+3, v);
e89f66ec 132 if (dup9)
39cf7803 133 ((uint16_t *)d)[8] = v >> (16 * (1 - BIG));
e89f66ec 134 else
39cf7803 135 ((uint16_t *)d)[8] = bgcol;
e89f66ec 136#else
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137 ((uint32_t *)d)[0] = (-((font_data >> 7)) & xorcol) ^ bgcol;
138 ((uint32_t *)d)[1] = (-((font_data >> 6) & 1) & xorcol) ^ bgcol;
139 ((uint32_t *)d)[2] = (-((font_data >> 5) & 1) & xorcol) ^ bgcol;
140 ((uint32_t *)d)[3] = (-((font_data >> 4) & 1) & xorcol) ^ bgcol;
141 ((uint32_t *)d)[4] = (-((font_data >> 3) & 1) & xorcol) ^ bgcol;
142 ((uint32_t *)d)[5] = (-((font_data >> 2) & 1) & xorcol) ^ bgcol;
143 ((uint32_t *)d)[6] = (-((font_data >> 1) & 1) & xorcol) ^ bgcol;
144 v = (-((font_data >> 0) & 1) & xorcol) ^ bgcol;
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145 ((uint32_t *)d)[7] = v;
146 if (dup9)
39cf7803 147 ((uint32_t *)d)[8] = v;
e89f66ec 148 else
39cf7803 149 ((uint32_t *)d)[8] = bgcol;
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150#endif
151 font_ptr += 4;
152 d += linesize;
153 } while (--h);
154}
155
5fafdf24 156/*
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157 * 4 color mode
158 */
cedd91d2 159static void glue(vga_draw_line2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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160 const uint8_t *s, int width)
161{
162 uint32_t plane_mask, *palette, data, v;
163 int x;
164
165 palette = s1->last_palette;
5e55efc9 166 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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167 width >>= 3;
168 for(x = 0; x < width; x++) {
169 data = ((uint32_t *)s)[0];
170 data &= plane_mask;
171 v = expand2[GET_PLANE(data, 0)];
172 v |= expand2[GET_PLANE(data, 2)] << 2;
173 ((PIXEL_TYPE *)d)[0] = palette[v >> 12];
174 ((PIXEL_TYPE *)d)[1] = palette[(v >> 8) & 0xf];
175 ((PIXEL_TYPE *)d)[2] = palette[(v >> 4) & 0xf];
176 ((PIXEL_TYPE *)d)[3] = palette[(v >> 0) & 0xf];
177
178 v = expand2[GET_PLANE(data, 1)];
179 v |= expand2[GET_PLANE(data, 3)] << 2;
180 ((PIXEL_TYPE *)d)[4] = palette[v >> 12];
181 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
182 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
183 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
184 d += BPP * 8;
185 s += 4;
186 }
187}
188
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189#if BPP == 1
190#define PUT_PIXEL2(d, n, v) ((uint16_t *)d)[(n)] = (v)
191#elif BPP == 2
192#define PUT_PIXEL2(d, n, v) ((uint32_t *)d)[(n)] = (v)
193#else
194#define PUT_PIXEL2(d, n, v) \
195((uint32_t *)d)[2*(n)] = ((uint32_t *)d)[2*(n)+1] = (v)
196#endif
197
5fafdf24 198/*
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199 * 4 color mode, dup2 horizontal
200 */
cedd91d2 201static void glue(vga_draw_line2d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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202 const uint8_t *s, int width)
203{
204 uint32_t plane_mask, *palette, data, v;
205 int x;
206
207 palette = s1->last_palette;
5e55efc9 208 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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209 width >>= 3;
210 for(x = 0; x < width; x++) {
211 data = ((uint32_t *)s)[0];
212 data &= plane_mask;
213 v = expand2[GET_PLANE(data, 0)];
214 v |= expand2[GET_PLANE(data, 2)] << 2;
215 PUT_PIXEL2(d, 0, palette[v >> 12]);
216 PUT_PIXEL2(d, 1, palette[(v >> 8) & 0xf]);
217 PUT_PIXEL2(d, 2, palette[(v >> 4) & 0xf]);
218 PUT_PIXEL2(d, 3, palette[(v >> 0) & 0xf]);
219
220 v = expand2[GET_PLANE(data, 1)];
221 v |= expand2[GET_PLANE(data, 3)] << 2;
222 PUT_PIXEL2(d, 4, palette[v >> 12]);
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 += BPP * 16;
227 s += 4;
228 }
229}
230
5fafdf24 231/*
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232 * 16 color mode
233 */
cedd91d2 234static void glue(vga_draw_line4_, DEPTH)(VGACommonState *s1, uint8_t *d,
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235 const uint8_t *s, int width)
236{
237 uint32_t plane_mask, data, v, *palette;
238 int x;
239
240 palette = s1->last_palette;
5e55efc9 241 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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242 width >>= 3;
243 for(x = 0; x < width; x++) {
244 data = ((uint32_t *)s)[0];
245 data &= plane_mask;
246 v = expand4[GET_PLANE(data, 0)];
247 v |= expand4[GET_PLANE(data, 1)] << 1;
248 v |= expand4[GET_PLANE(data, 2)] << 2;
249 v |= expand4[GET_PLANE(data, 3)] << 3;
250 ((PIXEL_TYPE *)d)[0] = palette[v >> 28];
251 ((PIXEL_TYPE *)d)[1] = palette[(v >> 24) & 0xf];
252 ((PIXEL_TYPE *)d)[2] = palette[(v >> 20) & 0xf];
253 ((PIXEL_TYPE *)d)[3] = palette[(v >> 16) & 0xf];
254 ((PIXEL_TYPE *)d)[4] = palette[(v >> 12) & 0xf];
255 ((PIXEL_TYPE *)d)[5] = palette[(v >> 8) & 0xf];
256 ((PIXEL_TYPE *)d)[6] = palette[(v >> 4) & 0xf];
257 ((PIXEL_TYPE *)d)[7] = palette[(v >> 0) & 0xf];
258 d += BPP * 8;
259 s += 4;
260 }
261}
262
5fafdf24 263/*
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264 * 16 color mode, dup2 horizontal
265 */
cedd91d2 266static void glue(vga_draw_line4d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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267 const uint8_t *s, int width)
268{
269 uint32_t plane_mask, data, v, *palette;
270 int x;
271
272 palette = s1->last_palette;
5e55efc9 273 plane_mask = mask16[s1->ar[VGA_ATC_PLANE_ENABLE] & 0xf];
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274 width >>= 3;
275 for(x = 0; x < width; x++) {
276 data = ((uint32_t *)s)[0];
277 data &= plane_mask;
278 v = expand4[GET_PLANE(data, 0)];
279 v |= expand4[GET_PLANE(data, 1)] << 1;
280 v |= expand4[GET_PLANE(data, 2)] << 2;
281 v |= expand4[GET_PLANE(data, 3)] << 3;
282 PUT_PIXEL2(d, 0, palette[v >> 28]);
283 PUT_PIXEL2(d, 1, palette[(v >> 24) & 0xf]);
284 PUT_PIXEL2(d, 2, palette[(v >> 20) & 0xf]);
285 PUT_PIXEL2(d, 3, palette[(v >> 16) & 0xf]);
286 PUT_PIXEL2(d, 4, palette[(v >> 12) & 0xf]);
287 PUT_PIXEL2(d, 5, palette[(v >> 8) & 0xf]);
288 PUT_PIXEL2(d, 6, palette[(v >> 4) & 0xf]);
289 PUT_PIXEL2(d, 7, palette[(v >> 0) & 0xf]);
290 d += BPP * 16;
291 s += 4;
292 }
293}
294
5fafdf24 295/*
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296 * 256 color mode, double pixels
297 *
298 * XXX: add plane_mask support (never used in standard VGA modes)
299 */
cedd91d2 300static void glue(vga_draw_line8d2_, DEPTH)(VGACommonState *s1, uint8_t *d,
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301 const uint8_t *s, int width)
302{
303 uint32_t *palette;
304 int x;
305
306 palette = s1->last_palette;
307 width >>= 3;
308 for(x = 0; x < width; x++) {
309 PUT_PIXEL2(d, 0, palette[s[0]]);
310 PUT_PIXEL2(d, 1, palette[s[1]]);
311 PUT_PIXEL2(d, 2, palette[s[2]]);
312 PUT_PIXEL2(d, 3, palette[s[3]]);
313 d += BPP * 8;
314 s += 4;
315 }
316}
317
5fafdf24 318/*
17b0018b 319 * standard 256 color mode
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320 *
321 * XXX: add plane_mask support (never used in standard VGA modes)
322 */
cedd91d2 323static void glue(vga_draw_line8_, DEPTH)(VGACommonState *s1, uint8_t *d,
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324 const uint8_t *s, int width)
325{
326 uint32_t *palette;
327 int x;
328
329 palette = s1->last_palette;
330 width >>= 3;
331 for(x = 0; x < width; x++) {
332 ((PIXEL_TYPE *)d)[0] = palette[s[0]];
333 ((PIXEL_TYPE *)d)[1] = palette[s[1]];
334 ((PIXEL_TYPE *)d)[2] = palette[s[2]];
335 ((PIXEL_TYPE *)d)[3] = palette[s[3]];
336 ((PIXEL_TYPE *)d)[4] = palette[s[4]];
337 ((PIXEL_TYPE *)d)[5] = palette[s[5]];
338 ((PIXEL_TYPE *)d)[6] = palette[s[6]];
339 ((PIXEL_TYPE *)d)[7] = palette[s[7]];
340 d += BPP * 8;
341 s += 8;
342 }
343}
344
345#endif /* DEPTH != 15 */
346
347
348/* XXX: optimize */
349
5fafdf24 350/*
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351 * 15 bit color
352 */
cedd91d2 353static void glue(vga_draw_line15_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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354 const uint8_t *s, int width)
355{
e2542fe2 356#if DEPTH == 15 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
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357 memcpy(d, s, width * 2);
358#else
359 int w;
360 uint32_t v, r, g, b;
361
362 w = width;
363 do {
61382a50 364 v = lduw_raw((void *)s);
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365 r = (v >> 7) & 0xf8;
366 g = (v >> 2) & 0xf8;
367 b = (v << 3) & 0xf8;
d3079cd2 368 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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369 s += 2;
370 d += BPP;
371 } while (--w != 0);
3b46e624 372#endif
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373}
374
5fafdf24 375/*
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376 * 16 bit color
377 */
cedd91d2 378static void glue(vga_draw_line16_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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379 const uint8_t *s, int width)
380{
e2542fe2 381#if DEPTH == 16 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
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382 memcpy(d, s, width * 2);
383#else
384 int w;
385 uint32_t v, r, g, b;
386
387 w = width;
388 do {
61382a50 389 v = lduw_raw((void *)s);
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390 r = (v >> 8) & 0xf8;
391 g = (v >> 3) & 0xfc;
392 b = (v << 3) & 0xf8;
d3079cd2 393 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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394 s += 2;
395 d += BPP;
396 } while (--w != 0);
3b46e624 397#endif
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398}
399
5fafdf24 400/*
4fa0f5d2
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401 * 24 bit color
402 */
cedd91d2 403static void glue(vga_draw_line24_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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404 const uint8_t *s, int width)
405{
406 int w;
407 uint32_t r, g, b;
408
409 w = width;
410 do {
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411#if defined(TARGET_WORDS_BIGENDIAN)
412 r = s[0];
413 g = s[1];
414 b = s[2];
415#else
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416 b = s[0];
417 g = s[1];
418 r = s[2];
53c862a8 419#endif
d3079cd2 420 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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421 s += 3;
422 d += BPP;
423 } while (--w != 0);
424}
425
5fafdf24 426/*
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427 * 32 bit color
428 */
cedd91d2 429static void glue(vga_draw_line32_, PIXEL_NAME)(VGACommonState *s1, uint8_t *d,
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430 const uint8_t *s, int width)
431{
e2542fe2 432#if DEPTH == 32 && defined(HOST_WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN) && !defined(BGR_FORMAT)
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433 memcpy(d, s, width * 4);
434#else
435 int w;
436 uint32_t r, g, b;
437
438 w = width;
439 do {
53c862a8
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440#if defined(TARGET_WORDS_BIGENDIAN)
441 r = s[1];
442 g = s[2];
443 b = s[3];
444#else
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445 b = s[0];
446 g = s[1];
447 r = s[2];
53c862a8 448#endif
d3079cd2 449 ((PIXEL_TYPE *)d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
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450 s += 4;
451 d += BPP;
452 } while (--w != 0);
453#endif
454}
455
17b0018b 456#undef PUT_PIXEL2
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457#undef DEPTH
458#undef BPP
459#undef PIXEL_TYPE
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460#undef PIXEL_NAME
461#undef BGR_FORMAT