b78828bf |
1 | /* |
2 | * (C) notaz, 2010 |
3 | * |
4 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. |
5 | * See the COPYING file in the top-level directory. |
6 | */ |
7 | |
0ec348b9 |
8 | #include <stdio.h> |
9 | #include <stdlib.h> |
10 | #include <string.h> |
11 | #include <sys/time.h> |
12 | #include <SDL/SDL.h> |
13 | |
b78828bf |
14 | #include "omapsdl.h" |
3cb98c5e |
15 | #include "common/input.h" |
0ec348b9 |
16 | #include "linux/fbdev.h" |
3cb98c5e |
17 | #include "linux/oshide.h" |
0ec348b9 |
18 | |
19 | static SDL_Surface *g_screen; |
20 | static void *g_screen_fbp; |
21 | static Uint16 g_8bpp_pal[256]; |
22 | static Uint32 g_start_ticks; |
0ec348b9 |
23 | |
24 | static inline int min(int v1, int v2) |
25 | { |
26 | return v1 < v2 ? v1 : v2; |
27 | } |
28 | |
0ec348b9 |
29 | static SDL_Surface *alloc_surface(int w, int h, int bpp) |
30 | { |
31 | // SDL has some pointer overuse, every surface has a format, |
32 | // why make format accessible through pointer? |
33 | struct { |
34 | SDL_Surface s; |
35 | SDL_PixelFormat f; |
36 | } *ret; |
37 | |
38 | ret = calloc(1, sizeof(*ret)); |
39 | if (ret == NULL) |
40 | return NULL; |
41 | |
42 | ret->s.format = &ret->f; |
43 | ret->f.BitsPerPixel = bpp; |
44 | ret->f.BytesPerPixel = (bpp + 7) / 8; |
45 | |
46 | ret->s.w = w; |
47 | ret->s.h = h; |
48 | ret->s.pitch = w * ret->f.BytesPerPixel; |
49 | // XXX: more fields |
50 | |
51 | return &ret->s; |
52 | } |
53 | |
54 | DECLSPEC int SDLCALL |
55 | SDL_Init(Uint32 flags) |
56 | { |
57 | trace("%08x", flags); |
58 | |
3cb98c5e |
59 | if (g_start_ticks == 0) { |
b78828bf |
60 | omapsdl_input_init(); |
3cb98c5e |
61 | oshide_init(); |
b78828bf |
62 | omapsdl_config(); |
3cb98c5e |
63 | } |
64 | |
0ec348b9 |
65 | g_start_ticks = 0; |
66 | g_start_ticks = SDL_GetTicks(); |
67 | |
68 | return 0; |
69 | } |
70 | |
71 | DECLSPEC void SDLCALL |
72 | SDL_Quit(void) |
73 | { |
74 | trace(""); |
3cb98c5e |
75 | |
76 | if (g_start_ticks != 0) { |
77 | oshide_finish(); |
78 | g_start_ticks = 0; |
79 | } |
0ec348b9 |
80 | } |
81 | |
82 | DECLSPEC int SDLCALL |
83 | SDL_InitSubSystem(Uint32 flags) |
84 | { |
85 | trace("%08x", flags); |
86 | return 0; |
87 | } |
88 | |
89 | DECLSPEC void SDLCALL |
90 | SDL_QuitSubSystem(Uint32 flags) |
91 | { |
92 | trace("%08x", flags); |
93 | } |
94 | |
95 | DECLSPEC Uint32 SDLCALL |
96 | SDL_GetTicks(void) |
97 | { |
98 | struct timeval tv; |
99 | Uint32 ret; |
100 | |
101 | gettimeofday(&tv, NULL); |
102 | ret = tv.tv_sec * 1000; |
103 | ret += tv.tv_usec * 1048 >> 20; |
104 | |
105 | ret -= g_start_ticks; |
106 | dbg(" SDL_GetTicks %d", ret); |
107 | return ret; |
108 | } |
109 | |
110 | DECLSPEC SDL_Surface * SDLCALL |
111 | SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags) |
112 | { |
113 | struct vout_fbdev *fbdev; |
114 | |
115 | trace("%d, %d, %d, %08x", width, height, bpp, flags); |
116 | |
3cb98c5e |
117 | if (bpp == 0) |
118 | bpp = 16; |
119 | |
0ec348b9 |
120 | if (bpp != 8 && bpp != 16) { |
121 | err("unsupported bpp: %d\n", bpp); |
122 | return NULL; |
123 | } |
124 | |
125 | // XXX: destroy old g_screen? |
126 | |
127 | g_screen = alloc_surface(width, height, bpp); |
128 | if (g_screen == NULL) |
129 | return NULL; |
130 | |
131 | fbdev = vout_fbdev_init("/dev/fb0", &width, &height, 0); |
132 | if (fbdev == NULL) |
133 | goto fail_fbdev_init; |
134 | |
135 | g_screen_fbp = vout_fbdev_flip(fbdev); |
136 | if (bpp == 16) |
137 | g_screen->pixels = g_screen_fbp; |
138 | else |
139 | // we have to fake this for now.. |
140 | g_screen->pixels = calloc(g_screen->pitch * height, 1); |
141 | |
142 | if (g_screen->pixels == NULL) { |
143 | err("fb NULL"); |
144 | goto fail_pixels; |
145 | } |
146 | g_screen->hwdata = (void *)fbdev; |
147 | |
148 | dbg("returning %p", g_screen); |
149 | return g_screen; |
150 | |
151 | fail_pixels: |
152 | vout_fbdev_finish(fbdev); |
153 | fail_fbdev_init: |
154 | free(g_screen); |
155 | g_screen = NULL; |
156 | return NULL; |
157 | } |
158 | |
159 | DECLSPEC int SDLCALL |
160 | SDL_Flip(SDL_Surface *screen) |
161 | { |
162 | struct vout_fbdev *fbdev; |
163 | |
164 | trace("%p", screen); |
165 | |
166 | if (screen != g_screen) { |
167 | err("flip not on screen surface?"); |
168 | return -1; |
169 | } |
170 | |
171 | if (screen->format->BitsPerPixel == 8) { |
172 | int l = screen->pitch * screen->h; |
3cb98c5e |
173 | #ifdef __arm__ |
0ec348b9 |
174 | do_clut(g_screen_fbp, screen->pixels, g_8bpp_pal, l); |
175 | #else |
176 | Uint16 *d = g_screen_fbp; |
177 | Uint8 *s = screen->pixels; |
178 | |
179 | // XXX: perhaps optimize this sh*t |
180 | for (; l > 0; d++, s++, l--) |
181 | *d = g_8bpp_pal[*s]; |
182 | #endif |
183 | } |
184 | |
185 | fbdev = (void *)screen->hwdata; |
186 | g_screen_fbp = vout_fbdev_flip(fbdev); |
187 | |
188 | if (screen->format->BitsPerPixel != 8) |
189 | screen->pixels = g_screen_fbp; |
190 | |
191 | return 0; |
192 | } |
193 | |
194 | static int do_rect_clip(const SDL_Surface *s, SDL_Rect *r) |
195 | { |
196 | int x = r->x, y = r->y, w = r->w, h = r->h; |
197 | |
198 | if (x < 0) { |
199 | w += x; |
200 | if (w < 0) |
201 | w = 0; |
202 | x = 0; |
203 | } |
204 | if (y < 0) { |
205 | h += y; |
206 | if (h < 0) |
207 | h = 0; |
208 | y = 0; |
209 | } |
210 | if (x + w > s->w) { |
211 | w = s->w - x; |
212 | if (w < 0) |
213 | w = 0; |
214 | } |
215 | if (y + h > s->h) { |
216 | h = s->h - y; |
217 | if (h < 0) |
218 | h = 0; |
219 | } |
220 | |
221 | r->x = x; r->y = y; r->w = w; r->h = h; |
222 | return (w > 0 && h > 0) ? 0 : -1; |
223 | } |
224 | |
225 | DECLSPEC int SDLCALL |
226 | SDL_UpperBlit(SDL_Surface *src, SDL_Rect *srcrect, |
227 | SDL_Surface *dst, SDL_Rect *dstrect) |
228 | { |
229 | int sx = 0, sy = 0, sw, sh; |
230 | int dx = 0, dy = 0; |
231 | SDL_Rect tmprect = { 0, }; |
232 | |
233 | trace("%p, %p, %p, %p", src, srcrect, dst, dstrect); |
234 | |
235 | if (src == NULL || dst == NULL) |
236 | return -1; |
237 | |
238 | if (srcrect != NULL) { |
239 | // XXX: dst pos may need to be adjusted in some corner cases |
240 | if (do_rect_clip(src, srcrect) < 0) |
241 | return -1; |
242 | sx = srcrect->x; |
243 | sy = srcrect->y; |
244 | sw = srcrect->w; |
245 | sh = srcrect->h; |
246 | } else { |
247 | sw = src->w; |
248 | sh = src->h; |
249 | } |
250 | |
251 | if (dstrect == NULL) |
252 | dstrect = &tmprect; |
253 | |
254 | // SDL just uses source w and h |
255 | dstrect->w = sw; |
256 | dstrect->h = sh; |
257 | if (do_rect_clip(dst, dstrect) < 0) |
258 | return -1; |
259 | dx = dstrect->x; |
260 | dy = dstrect->y; |
261 | sw = dstrect->w; |
262 | sh = dstrect->h; |
263 | |
264 | dbg("(%d %d %d %d) -> (%d %d %d %d)", sx, sy, sw, sh, dx, dy, sw, sh); |
265 | |
266 | if (src->format->BitsPerPixel == dst->format->BitsPerPixel) { |
267 | int Bpp = src->format->BytesPerPixel; |
268 | int dpitch = dst->pitch; |
269 | int spitch = src->pitch; |
270 | Uint8 *d = (Uint8 *)dst->pixels + dpitch * dy + dx * Bpp; |
271 | Uint8 *s = (Uint8 *)src->pixels + spitch * sy + sx * Bpp; |
272 | |
273 | for (sw *= Bpp; sh > 0; d += dpitch, s += spitch, sh--) |
274 | memcpy(d, s, sw); |
275 | } |
3cb98c5e |
276 | else |
277 | not_supported(); |
0ec348b9 |
278 | |
279 | return 0; |
280 | } |
281 | |
282 | DECLSPEC SDL_Surface * SDLCALL |
283 | SDL_CreateRGBSurface(Uint32 flags, int width, int height, int depth, |
284 | Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask) |
285 | { |
286 | SDL_Surface *ret; |
287 | |
288 | trace("%08x, %d, %d, %d, %04x, %04x, %04x, %04x", |
289 | flags, width, height, depth, Rmask, Gmask, Bmask, Amask); |
290 | |
291 | ret = alloc_surface(width, height, depth); |
292 | if (ret == NULL) |
293 | return NULL; |
294 | |
295 | ret->pixels = calloc(ret->pitch * height, 1); |
296 | if (ret->pixels == NULL) |
297 | goto fail; |
298 | |
299 | dbg("returning %p", ret); |
300 | return ret; |
301 | |
302 | fail: |
303 | free(ret); |
304 | return NULL; |
305 | } |
306 | |
307 | DECLSPEC int SDLCALL |
308 | SDL_SetColors(SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors) |
309 | { |
310 | int i, to; |
311 | |
312 | trace("%p, %p, %d, %d", surface, colors, firstcolor, ncolors); |
313 | |
314 | if (surface != g_screen) |
315 | return 0; |
316 | |
317 | to = min(ARRAY_SIZE(g_8bpp_pal), firstcolor + ncolors); |
318 | for (i = firstcolor; i < to; i++) { |
319 | SDL_Color *c = &colors[i - firstcolor]; |
320 | int r = c->r, g = c->g, b = c->b; |
321 | // noiz2sa gets a good deal darker that real SDL, |
322 | // don't know what's going on there |
323 | /* |
324 | if (r < 0xf8 && (r & 7) > 3) r += 8; |
325 | if (g < 0xfc && (g & 3) > 1) g += 4; |
326 | if (b < 0xf8 && (b & 7) > 3) b += 8; |
327 | */ |
328 | g_8bpp_pal[i] = ((r << 8) & 0xf800) | ((g << 3) & 0x07e0) | (b >> 3); |
329 | // g_8bpp_pal[i] += 0x0821; |
330 | } |
331 | |
332 | return 0; |
333 | } |
334 | |
335 | DECLSPEC int SDLCALL |
336 | SDL_FillRect(SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color) |
337 | { |
338 | trace("%p, %p, %04x", dst, dstrect, color); |
339 | |
3cb98c5e |
340 | if (dst->format->BytesPerPixel != 1) { |
341 | not_supported(); |
0ec348b9 |
342 | return -1; |
343 | } |
344 | else |
345 | memset(dst->pixels, color, dst->pitch * dst->h); |
346 | |
347 | return 0; |
348 | } |
349 | |
350 | /* |
351 | DECLSPEC SDL_Surface * SDLCALL |
352 | SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, |
353 | Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask) |
354 | { |
355 | } |
356 | */ |
357 | |
358 | DECLSPEC SDL_RWops * SDLCALL |
359 | SDL_RWFromFile(const char *file, const char *mode) |
360 | { |
361 | SDL_RWops *ret; |
362 | FILE *f; |
363 | |
364 | trace("%s, %s", file, mode); |
365 | |
366 | f = fopen(file, mode); |
367 | if (f == NULL) |
368 | return NULL; |
369 | |
370 | ret = calloc(1, sizeof(*ret)); |
371 | if (ret == NULL) { |
372 | fclose(f); |
373 | return NULL; |
374 | } |
375 | ret->hidden.stdio.fp = f; |
376 | |
377 | return ret; |
378 | } |
379 | |
380 | DECLSPEC void SDLCALL |
381 | SDL_FreeRW(SDL_RWops *area) |
382 | { |
383 | if (area->hidden.stdio.fp) { |
384 | fclose(area->hidden.stdio.fp); |
385 | area->hidden.stdio.fp = NULL; |
386 | } |
387 | free(area); |
388 | } |
389 | |
390 | DECLSPEC SDL_Surface * SDLCALL |
391 | SDL_LoadBMP_RW(SDL_RWops *src, int freesrc) |
392 | { |
393 | struct bmp_dib_v3 { |
394 | unsigned char magic[2]; |
395 | uint32_t filesz; |
396 | uint16_t creator1; |
397 | uint16_t creator2; |
398 | uint32_t bmp_offset; |
399 | uint32_t header_sz; |
400 | int32_t width; |
401 | int32_t height; |
402 | uint16_t nplanes; |
403 | uint16_t bitspp; |
404 | uint32_t compress_type; |
405 | uint32_t bmp_bytesz; |
406 | int32_t hres; |
407 | int32_t vres; |
408 | uint32_t ncolors; |
409 | uint32_t nimpcolors; |
410 | } __attribute__((packed)) bmp; |
411 | SDL_Surface *ret = NULL; |
412 | int data_size, read_size; |
3cb98c5e |
413 | uint8_t *tmp_buf = NULL; |
0ec348b9 |
414 | int i, bytespp; |
415 | FILE *f; |
416 | |
417 | trace("%p, %d", src, freesrc); |
418 | |
419 | f = src->hidden.stdio.fp; |
420 | if (f == NULL) |
421 | goto out; |
422 | |
423 | if (fread(&bmp, 1, sizeof(bmp), f) != sizeof(bmp)) { |
424 | err("bmp read error"); |
425 | goto out; |
426 | } |
427 | |
428 | if (bmp.magic[0] != 'B' || bmp.magic[1] != 'M' || bmp.header_sz != 40) { |
429 | err("unhandled BMP format, sz=%d", bmp.header_sz); |
430 | goto out; |
431 | } |
432 | |
433 | if ((unsigned)bmp.width > 0xffff || (unsigned)bmp.height > 0xffff) { |
434 | err("BMP size %dx%d out of range", bmp.width, bmp.height); |
435 | goto out; |
436 | } |
437 | |
438 | if (bmp.bitspp != 4) { |
439 | err("BMP unhandled bpp: %d", bmp.bitspp); |
440 | goto out; |
441 | } |
442 | |
443 | bytespp = bmp.bitspp < 8 ? 1 : (bmp.bitspp + 7) / 8; |
444 | data_size = bmp.width * bmp.height * bytespp; |
445 | tmp_buf = malloc(data_size); |
446 | if (tmp_buf == NULL) |
447 | goto out; |
448 | |
449 | if (fseek(f, bmp.bmp_offset, SEEK_SET) != 0) { |
450 | err("BMP seek error"); |
451 | goto out; |
452 | } |
453 | |
454 | read_size = bmp.width * bmp.bitspp / 8; |
455 | for (i = bmp.height - 1; i > 0; i--) { |
456 | if (fread((char *)tmp_buf + i * read_size, 1, read_size, f) != read_size) { |
457 | err("BMP read error"); |
458 | goto out; |
459 | } |
460 | } |
461 | |
462 | if (bmp.bitspp == 4) { |
463 | // just convert to 8bpp now |
464 | int c = bmp.width * bmp.height / 2; |
465 | uint8_t *p = tmp_buf; |
466 | for (i = c - 1; i >= 0; i--) { |
467 | p[i * 2 + 1] = p[i] & 0xf; |
468 | p[i * 2] = p[i] >> 4; |
469 | } |
470 | } |
471 | |
472 | ret = alloc_surface(bmp.width, bmp.height, 8); |
473 | if (ret == NULL) |
474 | goto out; |
475 | |
476 | ret->pixels = tmp_buf; |
477 | tmp_buf = NULL; |
478 | |
479 | out: |
480 | if (tmp_buf != NULL) |
481 | free(tmp_buf); |
482 | if (freesrc) |
483 | SDL_FreeRW(src); |
484 | |
485 | return ret; |
486 | } |
487 | |
488 | DECLSPEC SDL_Surface * SDLCALL |
489 | SDL_ConvertSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags) |
490 | { |
491 | SDL_Surface *ret; |
492 | void *data; |
493 | |
494 | trace("%p, %p, %08x", src, fmt, flags); |
495 | |
496 | if (src->format->BitsPerPixel != fmt->BitsPerPixel) { |
497 | err("convert: not implemented"); |
498 | return NULL; |
499 | } |
500 | |
501 | data = malloc(src->pitch * src->h); |
502 | if (data == NULL) |
503 | return NULL; |
504 | memcpy(data, src->pixels, src->pitch * src->h); |
505 | |
506 | ret = alloc_surface(src->w, src->h, fmt->BitsPerPixel); |
507 | if (ret == NULL) { |
508 | free(data); |
509 | return NULL; |
510 | } |
511 | ret->pixels = data; |
512 | return ret; |
513 | } |
514 | |
515 | DECLSPEC int SDLCALL |
516 | SDL_SetColorKey(SDL_Surface *surface, Uint32 flag, Uint32 key) |
517 | { |
518 | trace("%p, %08x, %04x", surface, flag, key); |
519 | return 0; |
520 | } |
521 | |
0ec348b9 |
522 | DECLSPEC void SDLCALL |
523 | SDL_WM_SetCaption(const char *title, const char *icon) |
524 | { |
525 | trace("%s, %s", title, icon); |
526 | } |
527 | |
528 | DECLSPEC int SDLCALL |
529 | SDL_ShowCursor(int toggle) |
530 | { |
531 | trace("%d", toggle); |
532 | return 0; |
533 | } |
534 | |
535 | DECLSPEC char * SDLCALL |
536 | SDL_GetError(void) |
537 | { |
538 | trace(""); |
539 | |
540 | return ""; |
541 | } |
542 | |