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1 | #include <stdio.h> |
2 | #include <stdlib.h> |
3 | #include <string.h> |
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4 | #include <strings.h> |
5 | #include <ctype.h> |
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6 | #include <sys/time.h> |
7 | #include <SDL/SDL.h> |
8 | |
9 | #include "pmsdl.h" |
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10 | #include "common/input.h" |
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11 | #include "linux/fbdev.h" |
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12 | #include "linux/oshide.h" |
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13 | |
14 | static SDL_Surface *g_screen; |
15 | static void *g_screen_fbp; |
16 | static Uint16 g_8bpp_pal[256]; |
17 | static Uint32 g_start_ticks; |
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18 | |
19 | static inline int min(int v1, int v2) |
20 | { |
21 | return v1 < v2 ? v1 : v2; |
22 | } |
23 | |
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24 | static SDL_Surface *alloc_surface(int w, int h, int bpp) |
25 | { |
26 | // SDL has some pointer overuse, every surface has a format, |
27 | // why make format accessible through pointer? |
28 | struct { |
29 | SDL_Surface s; |
30 | SDL_PixelFormat f; |
31 | } *ret; |
32 | |
33 | ret = calloc(1, sizeof(*ret)); |
34 | if (ret == NULL) |
35 | return NULL; |
36 | |
37 | ret->s.format = &ret->f; |
38 | ret->f.BitsPerPixel = bpp; |
39 | ret->f.BytesPerPixel = (bpp + 7) / 8; |
40 | |
41 | ret->s.w = w; |
42 | ret->s.h = h; |
43 | ret->s.pitch = w * ret->f.BytesPerPixel; |
44 | // XXX: more fields |
45 | |
46 | return &ret->s; |
47 | } |
48 | |
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49 | static char *sskip(char *p) |
50 | { |
51 | while (*p && isspace(*p)) |
52 | p++; |
53 | return p; |
54 | } |
55 | |
56 | static char *nsskip(char *p) |
57 | { |
58 | while (*p && !isspace(*p)) |
59 | p++; |
60 | return p; |
61 | } |
62 | |
63 | static int check_token(const char *p, const char *token) |
64 | { |
65 | int tlen = strlen(token); |
66 | return strncasecmp(p, token, tlen) == 0 && isspace(p[tlen]); |
67 | } |
68 | |
69 | static void do_config(void) |
70 | { |
71 | char buff[256]; |
72 | FILE *f; |
73 | |
74 | f = fopen("pmsdl.cfg", "r"); |
75 | if (f == NULL) |
76 | return; |
77 | |
78 | while (!feof(f)) { |
79 | char *p, *line = fgets(buff, sizeof(buff), f); |
80 | if (line == NULL) |
81 | break; |
82 | p = line = sskip(line); |
83 | if (*p == '#') |
84 | continue; |
85 | |
86 | if (check_token(p, "bind")) { |
87 | char *key, *key_end, *sdlkey, *sdlkey_end; |
88 | key = sskip(p + 5); |
89 | key_end = nsskip(key); |
90 | p = sskip(key_end); |
91 | if (*p != '=') |
92 | goto bad; |
93 | sdlkey = sskip(p + 1); |
94 | sdlkey_end = nsskip(sdlkey); |
95 | p = sskip(sdlkey_end); |
96 | if (*key == 0 || *sdlkey == 0 || *p != 0) |
97 | goto bad; |
98 | *key_end = *sdlkey_end = 0; |
99 | |
100 | pmsdl_input_bind(key, sdlkey); |
101 | continue; |
102 | } |
103 | |
104 | bad: |
105 | err("config: failed to parse: %s", line); |
106 | } |
107 | fclose(f); |
108 | } |
109 | |
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110 | DECLSPEC int SDLCALL |
111 | SDL_Init(Uint32 flags) |
112 | { |
113 | trace("%08x", flags); |
114 | |
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115 | if (g_start_ticks == 0) { |
116 | pmsdl_input_init(); |
117 | oshide_init(); |
118 | do_config(); |
119 | } |
120 | |
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121 | g_start_ticks = 0; |
122 | g_start_ticks = SDL_GetTicks(); |
123 | |
124 | return 0; |
125 | } |
126 | |
127 | DECLSPEC void SDLCALL |
128 | SDL_Quit(void) |
129 | { |
130 | trace(""); |
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131 | |
132 | if (g_start_ticks != 0) { |
133 | oshide_finish(); |
134 | g_start_ticks = 0; |
135 | } |
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136 | } |
137 | |
138 | DECLSPEC int SDLCALL |
139 | SDL_InitSubSystem(Uint32 flags) |
140 | { |
141 | trace("%08x", flags); |
142 | return 0; |
143 | } |
144 | |
145 | DECLSPEC void SDLCALL |
146 | SDL_QuitSubSystem(Uint32 flags) |
147 | { |
148 | trace("%08x", flags); |
149 | } |
150 | |
151 | DECLSPEC Uint32 SDLCALL |
152 | SDL_GetTicks(void) |
153 | { |
154 | struct timeval tv; |
155 | Uint32 ret; |
156 | |
157 | gettimeofday(&tv, NULL); |
158 | ret = tv.tv_sec * 1000; |
159 | ret += tv.tv_usec * 1048 >> 20; |
160 | |
161 | ret -= g_start_ticks; |
162 | dbg(" SDL_GetTicks %d", ret); |
163 | return ret; |
164 | } |
165 | |
166 | DECLSPEC SDL_Surface * SDLCALL |
167 | SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags) |
168 | { |
169 | struct vout_fbdev *fbdev; |
170 | |
171 | trace("%d, %d, %d, %08x", width, height, bpp, flags); |
172 | |
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173 | if (bpp == 0) |
174 | bpp = 16; |
175 | |
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176 | if (bpp != 8 && bpp != 16) { |
177 | err("unsupported bpp: %d\n", bpp); |
178 | return NULL; |
179 | } |
180 | |
181 | // XXX: destroy old g_screen? |
182 | |
183 | g_screen = alloc_surface(width, height, bpp); |
184 | if (g_screen == NULL) |
185 | return NULL; |
186 | |
187 | fbdev = vout_fbdev_init("/dev/fb0", &width, &height, 0); |
188 | if (fbdev == NULL) |
189 | goto fail_fbdev_init; |
190 | |
191 | g_screen_fbp = vout_fbdev_flip(fbdev); |
192 | if (bpp == 16) |
193 | g_screen->pixels = g_screen_fbp; |
194 | else |
195 | // we have to fake this for now.. |
196 | g_screen->pixels = calloc(g_screen->pitch * height, 1); |
197 | |
198 | if (g_screen->pixels == NULL) { |
199 | err("fb NULL"); |
200 | goto fail_pixels; |
201 | } |
202 | g_screen->hwdata = (void *)fbdev; |
203 | |
204 | dbg("returning %p", g_screen); |
205 | return g_screen; |
206 | |
207 | fail_pixels: |
208 | vout_fbdev_finish(fbdev); |
209 | fail_fbdev_init: |
210 | free(g_screen); |
211 | g_screen = NULL; |
212 | return NULL; |
213 | } |
214 | |
215 | DECLSPEC int SDLCALL |
216 | SDL_Flip(SDL_Surface *screen) |
217 | { |
218 | struct vout_fbdev *fbdev; |
219 | |
220 | trace("%p", screen); |
221 | |
222 | if (screen != g_screen) { |
223 | err("flip not on screen surface?"); |
224 | return -1; |
225 | } |
226 | |
227 | if (screen->format->BitsPerPixel == 8) { |
228 | int l = screen->pitch * screen->h; |
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229 | #ifdef __arm__ |
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230 | do_clut(g_screen_fbp, screen->pixels, g_8bpp_pal, l); |
231 | #else |
232 | Uint16 *d = g_screen_fbp; |
233 | Uint8 *s = screen->pixels; |
234 | |
235 | // XXX: perhaps optimize this sh*t |
236 | for (; l > 0; d++, s++, l--) |
237 | *d = g_8bpp_pal[*s]; |
238 | #endif |
239 | } |
240 | |
241 | fbdev = (void *)screen->hwdata; |
242 | g_screen_fbp = vout_fbdev_flip(fbdev); |
243 | |
244 | if (screen->format->BitsPerPixel != 8) |
245 | screen->pixels = g_screen_fbp; |
246 | |
247 | return 0; |
248 | } |
249 | |
250 | static int do_rect_clip(const SDL_Surface *s, SDL_Rect *r) |
251 | { |
252 | int x = r->x, y = r->y, w = r->w, h = r->h; |
253 | |
254 | if (x < 0) { |
255 | w += x; |
256 | if (w < 0) |
257 | w = 0; |
258 | x = 0; |
259 | } |
260 | if (y < 0) { |
261 | h += y; |
262 | if (h < 0) |
263 | h = 0; |
264 | y = 0; |
265 | } |
266 | if (x + w > s->w) { |
267 | w = s->w - x; |
268 | if (w < 0) |
269 | w = 0; |
270 | } |
271 | if (y + h > s->h) { |
272 | h = s->h - y; |
273 | if (h < 0) |
274 | h = 0; |
275 | } |
276 | |
277 | r->x = x; r->y = y; r->w = w; r->h = h; |
278 | return (w > 0 && h > 0) ? 0 : -1; |
279 | } |
280 | |
281 | DECLSPEC int SDLCALL |
282 | SDL_UpperBlit(SDL_Surface *src, SDL_Rect *srcrect, |
283 | SDL_Surface *dst, SDL_Rect *dstrect) |
284 | { |
285 | int sx = 0, sy = 0, sw, sh; |
286 | int dx = 0, dy = 0; |
287 | SDL_Rect tmprect = { 0, }; |
288 | |
289 | trace("%p, %p, %p, %p", src, srcrect, dst, dstrect); |
290 | |
291 | if (src == NULL || dst == NULL) |
292 | return -1; |
293 | |
294 | if (srcrect != NULL) { |
295 | // XXX: dst pos may need to be adjusted in some corner cases |
296 | if (do_rect_clip(src, srcrect) < 0) |
297 | return -1; |
298 | sx = srcrect->x; |
299 | sy = srcrect->y; |
300 | sw = srcrect->w; |
301 | sh = srcrect->h; |
302 | } else { |
303 | sw = src->w; |
304 | sh = src->h; |
305 | } |
306 | |
307 | if (dstrect == NULL) |
308 | dstrect = &tmprect; |
309 | |
310 | // SDL just uses source w and h |
311 | dstrect->w = sw; |
312 | dstrect->h = sh; |
313 | if (do_rect_clip(dst, dstrect) < 0) |
314 | return -1; |
315 | dx = dstrect->x; |
316 | dy = dstrect->y; |
317 | sw = dstrect->w; |
318 | sh = dstrect->h; |
319 | |
320 | dbg("(%d %d %d %d) -> (%d %d %d %d)", sx, sy, sw, sh, dx, dy, sw, sh); |
321 | |
322 | if (src->format->BitsPerPixel == dst->format->BitsPerPixel) { |
323 | int Bpp = src->format->BytesPerPixel; |
324 | int dpitch = dst->pitch; |
325 | int spitch = src->pitch; |
326 | Uint8 *d = (Uint8 *)dst->pixels + dpitch * dy + dx * Bpp; |
327 | Uint8 *s = (Uint8 *)src->pixels + spitch * sy + sx * Bpp; |
328 | |
329 | for (sw *= Bpp; sh > 0; d += dpitch, s += spitch, sh--) |
330 | memcpy(d, s, sw); |
331 | } |
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332 | else |
333 | not_supported(); |
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334 | |
335 | return 0; |
336 | } |
337 | |
338 | DECLSPEC SDL_Surface * SDLCALL |
339 | SDL_CreateRGBSurface(Uint32 flags, int width, int height, int depth, |
340 | Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask) |
341 | { |
342 | SDL_Surface *ret; |
343 | |
344 | trace("%08x, %d, %d, %d, %04x, %04x, %04x, %04x", |
345 | flags, width, height, depth, Rmask, Gmask, Bmask, Amask); |
346 | |
347 | ret = alloc_surface(width, height, depth); |
348 | if (ret == NULL) |
349 | return NULL; |
350 | |
351 | ret->pixels = calloc(ret->pitch * height, 1); |
352 | if (ret->pixels == NULL) |
353 | goto fail; |
354 | |
355 | dbg("returning %p", ret); |
356 | return ret; |
357 | |
358 | fail: |
359 | free(ret); |
360 | return NULL; |
361 | } |
362 | |
363 | DECLSPEC int SDLCALL |
364 | SDL_SetColors(SDL_Surface *surface, SDL_Color *colors, int firstcolor, int ncolors) |
365 | { |
366 | int i, to; |
367 | |
368 | trace("%p, %p, %d, %d", surface, colors, firstcolor, ncolors); |
369 | |
370 | if (surface != g_screen) |
371 | return 0; |
372 | |
373 | to = min(ARRAY_SIZE(g_8bpp_pal), firstcolor + ncolors); |
374 | for (i = firstcolor; i < to; i++) { |
375 | SDL_Color *c = &colors[i - firstcolor]; |
376 | int r = c->r, g = c->g, b = c->b; |
377 | // noiz2sa gets a good deal darker that real SDL, |
378 | // don't know what's going on there |
379 | /* |
380 | if (r < 0xf8 && (r & 7) > 3) r += 8; |
381 | if (g < 0xfc && (g & 3) > 1) g += 4; |
382 | if (b < 0xf8 && (b & 7) > 3) b += 8; |
383 | */ |
384 | g_8bpp_pal[i] = ((r << 8) & 0xf800) | ((g << 3) & 0x07e0) | (b >> 3); |
385 | // g_8bpp_pal[i] += 0x0821; |
386 | } |
387 | |
388 | return 0; |
389 | } |
390 | |
391 | DECLSPEC int SDLCALL |
392 | SDL_FillRect(SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color) |
393 | { |
394 | trace("%p, %p, %04x", dst, dstrect, color); |
395 | |
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396 | if (dst->format->BytesPerPixel != 1) { |
397 | not_supported(); |
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398 | return -1; |
399 | } |
400 | else |
401 | memset(dst->pixels, color, dst->pitch * dst->h); |
402 | |
403 | return 0; |
404 | } |
405 | |
406 | /* |
407 | DECLSPEC SDL_Surface * SDLCALL |
408 | SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, |
409 | Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask) |
410 | { |
411 | } |
412 | */ |
413 | |
414 | DECLSPEC SDL_RWops * SDLCALL |
415 | SDL_RWFromFile(const char *file, const char *mode) |
416 | { |
417 | SDL_RWops *ret; |
418 | FILE *f; |
419 | |
420 | trace("%s, %s", file, mode); |
421 | |
422 | f = fopen(file, mode); |
423 | if (f == NULL) |
424 | return NULL; |
425 | |
426 | ret = calloc(1, sizeof(*ret)); |
427 | if (ret == NULL) { |
428 | fclose(f); |
429 | return NULL; |
430 | } |
431 | ret->hidden.stdio.fp = f; |
432 | |
433 | return ret; |
434 | } |
435 | |
436 | DECLSPEC void SDLCALL |
437 | SDL_FreeRW(SDL_RWops *area) |
438 | { |
439 | if (area->hidden.stdio.fp) { |
440 | fclose(area->hidden.stdio.fp); |
441 | area->hidden.stdio.fp = NULL; |
442 | } |
443 | free(area); |
444 | } |
445 | |
446 | DECLSPEC SDL_Surface * SDLCALL |
447 | SDL_LoadBMP_RW(SDL_RWops *src, int freesrc) |
448 | { |
449 | struct bmp_dib_v3 { |
450 | unsigned char magic[2]; |
451 | uint32_t filesz; |
452 | uint16_t creator1; |
453 | uint16_t creator2; |
454 | uint32_t bmp_offset; |
455 | uint32_t header_sz; |
456 | int32_t width; |
457 | int32_t height; |
458 | uint16_t nplanes; |
459 | uint16_t bitspp; |
460 | uint32_t compress_type; |
461 | uint32_t bmp_bytesz; |
462 | int32_t hres; |
463 | int32_t vres; |
464 | uint32_t ncolors; |
465 | uint32_t nimpcolors; |
466 | } __attribute__((packed)) bmp; |
467 | SDL_Surface *ret = NULL; |
468 | int data_size, read_size; |
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469 | uint8_t *tmp_buf = NULL; |
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470 | int i, bytespp; |
471 | FILE *f; |
472 | |
473 | trace("%p, %d", src, freesrc); |
474 | |
475 | f = src->hidden.stdio.fp; |
476 | if (f == NULL) |
477 | goto out; |
478 | |
479 | if (fread(&bmp, 1, sizeof(bmp), f) != sizeof(bmp)) { |
480 | err("bmp read error"); |
481 | goto out; |
482 | } |
483 | |
484 | if (bmp.magic[0] != 'B' || bmp.magic[1] != 'M' || bmp.header_sz != 40) { |
485 | err("unhandled BMP format, sz=%d", bmp.header_sz); |
486 | goto out; |
487 | } |
488 | |
489 | if ((unsigned)bmp.width > 0xffff || (unsigned)bmp.height > 0xffff) { |
490 | err("BMP size %dx%d out of range", bmp.width, bmp.height); |
491 | goto out; |
492 | } |
493 | |
494 | if (bmp.bitspp != 4) { |
495 | err("BMP unhandled bpp: %d", bmp.bitspp); |
496 | goto out; |
497 | } |
498 | |
499 | bytespp = bmp.bitspp < 8 ? 1 : (bmp.bitspp + 7) / 8; |
500 | data_size = bmp.width * bmp.height * bytespp; |
501 | tmp_buf = malloc(data_size); |
502 | if (tmp_buf == NULL) |
503 | goto out; |
504 | |
505 | if (fseek(f, bmp.bmp_offset, SEEK_SET) != 0) { |
506 | err("BMP seek error"); |
507 | goto out; |
508 | } |
509 | |
510 | read_size = bmp.width * bmp.bitspp / 8; |
511 | for (i = bmp.height - 1; i > 0; i--) { |
512 | if (fread((char *)tmp_buf + i * read_size, 1, read_size, f) != read_size) { |
513 | err("BMP read error"); |
514 | goto out; |
515 | } |
516 | } |
517 | |
518 | if (bmp.bitspp == 4) { |
519 | // just convert to 8bpp now |
520 | int c = bmp.width * bmp.height / 2; |
521 | uint8_t *p = tmp_buf; |
522 | for (i = c - 1; i >= 0; i--) { |
523 | p[i * 2 + 1] = p[i] & 0xf; |
524 | p[i * 2] = p[i] >> 4; |
525 | } |
526 | } |
527 | |
528 | ret = alloc_surface(bmp.width, bmp.height, 8); |
529 | if (ret == NULL) |
530 | goto out; |
531 | |
532 | ret->pixels = tmp_buf; |
533 | tmp_buf = NULL; |
534 | |
535 | out: |
536 | if (tmp_buf != NULL) |
537 | free(tmp_buf); |
538 | if (freesrc) |
539 | SDL_FreeRW(src); |
540 | |
541 | return ret; |
542 | } |
543 | |
544 | DECLSPEC SDL_Surface * SDLCALL |
545 | SDL_ConvertSurface(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags) |
546 | { |
547 | SDL_Surface *ret; |
548 | void *data; |
549 | |
550 | trace("%p, %p, %08x", src, fmt, flags); |
551 | |
552 | if (src->format->BitsPerPixel != fmt->BitsPerPixel) { |
553 | err("convert: not implemented"); |
554 | return NULL; |
555 | } |
556 | |
557 | data = malloc(src->pitch * src->h); |
558 | if (data == NULL) |
559 | return NULL; |
560 | memcpy(data, src->pixels, src->pitch * src->h); |
561 | |
562 | ret = alloc_surface(src->w, src->h, fmt->BitsPerPixel); |
563 | if (ret == NULL) { |
564 | free(data); |
565 | return NULL; |
566 | } |
567 | ret->pixels = data; |
568 | return ret; |
569 | } |
570 | |
571 | DECLSPEC int SDLCALL |
572 | SDL_SetColorKey(SDL_Surface *surface, Uint32 flag, Uint32 key) |
573 | { |
574 | trace("%p, %08x, %04x", surface, flag, key); |
575 | return 0; |
576 | } |
577 | |
0ec348b9 |
578 | DECLSPEC void SDLCALL |
579 | SDL_WM_SetCaption(const char *title, const char *icon) |
580 | { |
581 | trace("%s, %s", title, icon); |
582 | } |
583 | |
584 | DECLSPEC int SDLCALL |
585 | SDL_ShowCursor(int toggle) |
586 | { |
587 | trace("%d", toggle); |
588 | return 0; |
589 | } |
590 | |
591 | DECLSPEC char * SDLCALL |
592 | SDL_GetError(void) |
593 | { |
594 | trace(""); |
595 | |
596 | return ""; |
597 | } |
598 | |