blob: 939f098d15b7dfb405f4a659f5480e6ff8666b76 [file] [log] [blame]
Dees_Troy51a0e822012-09-05 15:24:24 -04001/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <stdbool.h>
18#include <stdlib.h>
19#include <unistd.h>
20
21#include <fcntl.h>
22#include <stdio.h>
23
24#include <sys/ioctl.h>
25#include <sys/mman.h>
26#include <sys/types.h>
27
28#include <linux/fb.h>
29#include <linux/kd.h>
30
31#include <pixelflinger/pixelflinger.h>
32
33#include "minui.h"
34
35#ifdef BOARD_USE_CUSTOM_RECOVERY_FONT
36#include BOARD_USE_CUSTOM_RECOVERY_FONT
37#else
38#include "font_10x18.h"
39#endif
40
41#ifdef RECOVERY_BGRA
42#define PIXEL_FORMAT GGL_PIXEL_FORMAT_BGRA_8888
43#define PIXEL_SIZE 4
44#endif
45#ifdef RECOVERY_RGBX
46#define PIXEL_FORMAT GGL_PIXEL_FORMAT_RGBX_8888
47#define PIXEL_SIZE 4
48#endif
49#ifndef PIXEL_FORMAT
50#define PIXEL_FORMAT GGL_PIXEL_FORMAT_RGB_565
51#define PIXEL_SIZE 2
52#endif
53
54// #define PRINT_SCREENINFO 1 // Enables printing of screen info to log
55
56typedef struct {
57 GGLSurface texture;
58 unsigned offset[97];
59 unsigned cheight;
60 unsigned ascent;
61} GRFont;
62
63static GRFont *gr_font = 0;
64static GGLContext *gr_context = 0;
65static GGLSurface gr_font_texture;
66static GGLSurface gr_framebuffer[2];
67static GGLSurface gr_mem_surface;
68static unsigned gr_active_fb = 0;
69
70static int gr_fb_fd = -1;
71static int gr_vt_fd = -1;
72
73static struct fb_var_screeninfo vi;
74static struct fb_fix_screeninfo fi;
75
76#ifdef PRINT_SCREENINFO
77static void print_fb_var_screeninfo()
78{
79 LOGI("vi.xres: %d\n", vi.xres);
80 LOGI("vi.yres: %d\n", vi.yres);
81 LOGI("vi.xres_virtual: %d\n", vi.xres_virtual);
82 LOGI("vi.yres_virtual: %d\n", vi.yres_virtual);
83 LOGI("vi.xoffset: %d\n", vi.xoffset);
84 LOGI("vi.yoffset: %d\n", vi.yoffset);
85 LOGI("vi.bits_per_pixel: %d\n", vi.bits_per_pixel);
86 LOGI("vi.grayscale: %d\n", vi.grayscale);
87}
88#endif
89
90static int get_framebuffer(GGLSurface *fb)
91{
92 int fd;
93 void *bits;
94
95 fd = open("/dev/graphics/fb0", O_RDWR);
96 if (fd < 0) {
97 perror("cannot open fb0");
98 return -1;
99 }
100
101 if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
102 perror("failed to get fb0 info");
103 close(fd);
104 return -1;
105 }
106
107 fprintf(stderr, "Pixel format: %dx%d @ %dbpp\n", vi.xres, vi.yres, vi.bits_per_pixel);
108
109 vi.bits_per_pixel = PIXEL_SIZE * 8;
110 if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) {
111 fprintf(stderr, "Pixel format: BGRA_8888\n");
112 if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
113 vi.red.offset = 8;
114 vi.red.length = 8;
115 vi.green.offset = 16;
116 vi.green.length = 8;
117 vi.blue.offset = 24;
118 vi.blue.length = 8;
119 vi.transp.offset = 0;
120 vi.transp.length = 8;
121 } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) {
122 fprintf(stderr, "Pixel format: RGBX_8888\n");
123 if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
124 vi.red.offset = 24;
125 vi.red.length = 8;
126 vi.green.offset = 16;
127 vi.green.length = 8;
128 vi.blue.offset = 8;
129 vi.blue.length = 8;
130 vi.transp.offset = 0;
131 vi.transp.length = 8;
132 } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGB_565) {
133#ifdef RECOVERY_RGB_565
134 fprintf(stderr, "Pixel format: RGB_565\n");
135 vi.blue.offset = 0;
136 vi.green.offset = 5;
137 vi.red.offset = 11;
138#else
139 fprintf(stderr, "Pixel format: BGR_565\n");
140 vi.blue.offset = 11;
141 vi.green.offset = 5;
142 vi.red.offset = 0;
143#endif
144 if (PIXEL_SIZE != 2) fprintf(stderr, "E: Pixel Size mismatch!\n");
145 vi.blue.length = 5;
146 vi.green.length = 6;
147 vi.red.length = 5;
148 vi.blue.msb_right = 0;
149 vi.green.msb_right = 0;
150 vi.red.msb_right = 0;
151 vi.transp.offset = 0;
152 vi.transp.length = 0;
153 }
154 else
155 {
156 perror("unknown pixel format");
157 close(fd);
158 return -1;
159 }
160
161 vi.vmode = FB_VMODE_NONINTERLACED;
162 vi.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
163
164 if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
165 perror("failed to put fb0 info");
166 close(fd);
167 return -1;
168 }
169
170 if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
171 perror("failed to get fb0 info");
172 close(fd);
173 return -1;
174 }
175
176 bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
177 if (bits == MAP_FAILED) {
178 perror("failed to mmap framebuffer");
179 close(fd);
180 return -1;
181 }
182
183#ifdef RECOVERY_GRAPHICS_USE_LINELENGTH
184 vi.xres_virtual = fi.line_length / PIXEL_SIZE;
185#endif
186
187 fb->version = sizeof(*fb);
188 fb->width = vi.xres;
189 fb->height = vi.yres;
190#ifdef BOARD_HAS_JANKY_BACKBUFFER
191 LOGI("setting JANKY BACKBUFFER\n");
192 fb->stride = fi.line_length/2;
193#else
194 fb->stride = vi.xres_virtual;
195#endif
196 fb->data = bits;
197 fb->format = PIXEL_FORMAT;
198 memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
199
200 fb++;
201
202 fb->version = sizeof(*fb);
203 fb->width = vi.xres;
204 fb->height = vi.yres;
205#ifdef BOARD_HAS_JANKY_BACKBUFFER
206 fb->stride = fi.line_length/2;
207 fb->data = (void*) (((unsigned) bits) + vi.yres * fi.line_length);
208#else
209 fb->stride = vi.xres_virtual;
210 fb->data = (void*) (((unsigned) bits) + vi.yres * fb->stride * PIXEL_SIZE);
211#endif
212 fb->format = PIXEL_FORMAT;
213 memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
214
215#ifdef PRINT_SCREENINFO
216 print_fb_var_screeninfo();
217#endif
218
219 return fd;
220}
221
222static void get_memory_surface(GGLSurface* ms) {
223 ms->version = sizeof(*ms);
224 ms->width = vi.xres;
225 ms->height = vi.yres;
226 ms->stride = vi.xres_virtual;
227 ms->data = malloc(vi.xres_virtual * vi.yres * PIXEL_SIZE);
228 ms->format = PIXEL_FORMAT;
229}
230
231static void set_active_framebuffer(unsigned n)
232{
233 if (n > 1) return;
234 vi.yres_virtual = vi.yres * 2;
235 vi.yoffset = n * vi.yres;
236// vi.bits_per_pixel = PIXEL_SIZE * 8;
237 if (ioctl(gr_fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
238 perror("active fb swap failed");
239 }
240}
241
242void gr_flip(void)
243{
244 GGLContext *gl = gr_context;
245
246 /* swap front and back buffers */
247 gr_active_fb = (gr_active_fb + 1) & 1;
248
249#ifdef BOARD_HAS_FLIPPED_SCREEN
250 /* flip buffer 180 degrees for devices with physicaly inverted screens */
251 unsigned int i;
252 for (i = 1; i < (vi.xres * vi.yres); i++) {
253 unsigned short tmp = gr_mem_surface.data[i];
254 gr_mem_surface.data[i] = gr_mem_surface.data[(vi.xres * vi.yres * 2) - i];
255 gr_mem_surface.data[(vi.xres * vi.yres * 2) - i] = tmp;
256 }
257#endif
258
259 /* copy data from the in-memory surface to the buffer we're about
260 * to make active. */
261 memcpy(gr_framebuffer[gr_active_fb].data, gr_mem_surface.data,
262 vi.xres_virtual * vi.yres * PIXEL_SIZE);
263
264 /* inform the display driver */
265 set_active_framebuffer(gr_active_fb);
266}
267
268void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
269{
270 GGLContext *gl = gr_context;
271 GGLint color[4];
272 color[0] = ((r << 8) | r) + 1;
273 color[1] = ((g << 8) | g) + 1;
274 color[2] = ((b << 8) | b) + 1;
275 color[3] = ((a << 8) | a) + 1;
276 gl->color4xv(gl, color);
277}
278
279int gr_measureEx(const char *s, void* font)
280{
281 GRFont* fnt = (GRFont*) font;
282 int total = 0;
283 unsigned pos;
284 unsigned off;
285
286 if (!fnt) fnt = gr_font;
287
288 while ((off = *s++))
289 {
290 off -= 32;
291 if (off < 96)
292 total += (fnt->offset[off+1] - fnt->offset[off]);
293 }
294 return total;
295}
296
297unsigned character_width(const char *s, void* pFont)
298{
299 GRFont *font = (GRFont*) pFont;
300 unsigned off;
301
302 /* Handle default font */
303 if (!font) font = gr_font;
304
305 off = *s - 32;
306 if (off == 0)
307 return 0;
308
309 return font->offset[off+1] - font->offset[off];
310}
311
312int gr_textEx(int x, int y, const char *s, void* pFont)
313{
314 GGLContext *gl = gr_context;
315 GRFont *font = (GRFont*) pFont;
316 unsigned off;
317 unsigned cwidth;
318
319 /* Handle default font */
320 if (!font) font = gr_font;
321
322 gl->bindTexture(gl, &font->texture);
323 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
324 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
325 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
326 gl->enable(gl, GGL_TEXTURE_2D);
327
328 while((off = *s++)) {
329 off -= 32;
330 cwidth = 0;
331 if (off < 96) {
332 cwidth = font->offset[off+1] - font->offset[off];
333 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
334 gl->recti(gl, x, y, x + cwidth, y + font->cheight);
335 x += cwidth;
336 }
337 }
338
339 return x;
340}
341
342int gr_textExW(int x, int y, const char *s, void* pFont, int max_width)
343{
344 GGLContext *gl = gr_context;
345 GRFont *font = (GRFont*) pFont;
346 unsigned off;
347 unsigned cwidth;
348
349 /* Handle default font */
350 if (!font) font = gr_font;
351
352 gl->bindTexture(gl, &font->texture);
353 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
354 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
355 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
356 gl->enable(gl, GGL_TEXTURE_2D);
357
358 while((off = *s++)) {
359 off -= 32;
360 cwidth = 0;
361 if (off < 96) {
362 cwidth = font->offset[off+1] - font->offset[off];
363 if ((x + (int)cwidth) < max_width) {
364 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
365 gl->recti(gl, x, y, x + cwidth, y + font->cheight);
366 x += cwidth;
367 } else {
368 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
369 gl->recti(gl, x, y, max_width, y + font->cheight);
370 x = max_width;
371 return x;
372 }
373 }
374 }
375
376 return x;
377}
378
379int gr_textExWH(int x, int y, const char *s, void* pFont, int max_width, int max_height)
380{
381 GGLContext *gl = gr_context;
382 GRFont *font = (GRFont*) pFont;
383 unsigned off;
384 unsigned cwidth;
385 int rect_x, rect_y;
386
387 /* Handle default font */
388 if (!font) font = gr_font;
389
390 gl->bindTexture(gl, &font->texture);
391 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
392 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
393 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
394 gl->enable(gl, GGL_TEXTURE_2D);
395
396 while((off = *s++)) {
397 off -= 32;
398 cwidth = 0;
399 if (off < 96) {
400 cwidth = font->offset[off+1] - font->offset[off];
401 if ((x + (int)cwidth) < max_width)
402 rect_x = x + cwidth;
403 else
404 rect_x = max_width;
405 if (y + font->cheight < max_height)
406 rect_y = y + font->cheight;
407 else
408 rect_y = max_height;
409
410 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
411 gl->recti(gl, x, y, rect_x, rect_y);
412 x += cwidth;
413 if (x > max_width)
414 return x;
415 }
416 }
417
418 return x;
419}
420
421int twgr_text(int x, int y, const char *s)
422{
423 GGLContext *gl = gr_context;
424 GRFont *font = gr_font;
425 unsigned off;
426 unsigned cwidth;
427
428 y -= font->ascent;
429
430 gl->bindTexture(gl, &font->texture);
431 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
432 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
433 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
434 gl->enable(gl, GGL_TEXTURE_2D);
435
436 while((off = *s++)) {
437 off -= 32;
438 if (off < 96) {
439 cwidth = font->offset[off+1] - font->offset[off];
440 gl->texCoord2i(gl, (off * cwidth) - x, 0 - y);
441 gl->recti(gl, x, y, x + cwidth, y + font->cheight);
442 }
443 x += cwidth;
444 }
445
446 return x;
447}
448
449void gr_fill(int x, int y, int w, int h)
450{
451 GGLContext *gl = gr_context;
452 gl->disable(gl, GGL_TEXTURE_2D);
453 gl->recti(gl, x, y, x + w, y + h);
454}
455
456void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy) {
457 if (gr_context == NULL) {
458 return;
459 }
460
461 GGLContext *gl = gr_context;
462 gl->bindTexture(gl, (GGLSurface*) source);
463 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
464 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
465 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
466 gl->enable(gl, GGL_TEXTURE_2D);
467 gl->texCoord2i(gl, sx - dx, sy - dy);
468 gl->recti(gl, dx, dy, dx + w, dy + h);
469}
470
471unsigned int gr_get_width(gr_surface surface) {
472 if (surface == NULL) {
473 return 0;
474 }
475 return ((GGLSurface*) surface)->width;
476}
477
478unsigned int gr_get_height(gr_surface surface) {
479 if (surface == NULL) {
480 return 0;
481 }
482 return ((GGLSurface*) surface)->height;
483}
484
485void* gr_loadFont(const char* fontName)
486{
487 int fd;
488 GRFont *font = 0;
489 GGLSurface *ftex;
490 unsigned char *bits, *rle;
491 unsigned char *in, data;
492 unsigned width, height;
493 unsigned element;
494
495 fd = open(fontName, O_RDONLY);
496 if (fd == -1)
497 {
498 char tmp[128];
499
500 sprintf(tmp, "/res/fonts/%s.dat", fontName);
501 fd = open(tmp, O_RDONLY);
502 if (fd == -1)
503 return NULL;
504 }
505
506 font = calloc(sizeof(*font), 1);
507 ftex = &font->texture;
508
509 read(fd, &width, sizeof(unsigned));
510 read(fd, &height, sizeof(unsigned));
511 read(fd, font->offset, sizeof(unsigned) * 96);
512 font->offset[96] = width;
513
514 bits = malloc(width * height);
515 memset(bits, 0, width * height);
516
517 unsigned pos = 0;
518 while (pos < width * height)
519 {
520 int bit;
521
522 read(fd, &data, 1);
523 for (bit = 0; bit < 8; bit++)
524 {
525 if (data & (1 << (7-bit))) bits[pos++] = 255;
526 else bits[pos++] = 0;
527
528 if (pos == width * height) break;
529 }
530 }
531 close(fd);
532
533 ftex->version = sizeof(*ftex);
534 ftex->width = width;
535 ftex->height = height;
536 ftex->stride = width;
537 ftex->data = (void*) bits;
538 ftex->format = GGL_PIXEL_FORMAT_A_8;
539 font->cheight = height;
540 font->ascent = height - 2;
541 return (void*) font;
542}
543
544int gr_getFontDetails(void* font, unsigned* cheight, unsigned* maxwidth)
545{
546 GRFont *fnt = (GRFont*) font;
547
548 if (!fnt) fnt = gr_font;
549 if (!fnt) return -1;
550
551 if (cheight) *cheight = fnt->cheight;
552 if (maxwidth)
553 {
554 int pos;
555 *maxwidth = 0;
556 for (pos = 0; pos < 96; pos++)
557 {
558 unsigned int width = fnt->offset[pos+1] - fnt->offset[pos];
559 if (width > *maxwidth)
560 {
561 *maxwidth = width;
562 }
563 }
564 }
565 return 0;
566}
567
568static void gr_init_font(void)
569{
570 int fontRes;
571 GGLSurface *ftex;
572 unsigned char *bits, *rle;
573 unsigned char *in, data;
574 unsigned width, height;
575 unsigned element;
576
577 gr_font = calloc(sizeof(*gr_font), 1);
578 ftex = &gr_font->texture;
579
580 width = font.width;
581 height = font.height;
582
583 bits = malloc(width * height);
584 rle = bits;
585
586 in = font.rundata;
587 while((data = *in++))
588 {
589 memset(rle, (data & 0x80) ? 255 : 0, data & 0x7f);
590 rle += (data & 0x7f);
591 }
592 for (element = 0; element < 97; element++)
593 {
594 gr_font->offset[element] = (element * font.cwidth);
595 }
596
597 ftex->version = sizeof(*ftex);
598 ftex->width = width;
599 ftex->height = height;
600 ftex->stride = width;
601 ftex->data = (void*) bits;
602 ftex->format = GGL_PIXEL_FORMAT_A_8;
603 gr_font->cheight = height;
604 gr_font->ascent = height - 2;
605 return;
606}
607
608int gr_init(void)
609{
610 gglInit(&gr_context);
611 GGLContext *gl = gr_context;
612
613 gr_init_font();
614 gr_vt_fd = open("/dev/tty0", O_RDWR | O_SYNC);
615 if (gr_vt_fd < 0) {
616 // This is non-fatal; post-Cupcake kernels don't have tty0.
617 } else if (ioctl(gr_vt_fd, KDSETMODE, (void*) KD_GRAPHICS)) {
618 // However, if we do open tty0, we expect the ioctl to work.
619 perror("failed KDSETMODE to KD_GRAPHICS on tty0");
620 gr_exit();
621 return -1;
622 }
623
624 gr_fb_fd = get_framebuffer(gr_framebuffer);
625 if (gr_fb_fd < 0) {
626 perror("Unable to get framebuffer.\n");
627 gr_exit();
628 return -1;
629 }
630
631 get_memory_surface(&gr_mem_surface);
632
633 fprintf(stderr, "framebuffer: fd %d (%d x %d)\n",
634 gr_fb_fd, gr_framebuffer[0].width, gr_framebuffer[0].height);
635
636 /* start with 0 as front (displayed) and 1 as back (drawing) */
637 gr_active_fb = 0;
638 set_active_framebuffer(0);
639 gl->colorBuffer(gl, &gr_mem_surface);
640
641 gl->activeTexture(gl, 0);
642 gl->enable(gl, GGL_BLEND);
643 gl->blendFunc(gl, GGL_SRC_ALPHA, GGL_ONE_MINUS_SRC_ALPHA);
644
645// gr_fb_blank(true);
646// gr_fb_blank(false);
647
648 return 0;
649}
650
651void gr_exit(void)
652{
653 close(gr_fb_fd);
654 gr_fb_fd = -1;
655
656 free(gr_mem_surface.data);
657
658 ioctl(gr_vt_fd, KDSETMODE, (void*) KD_TEXT);
659 close(gr_vt_fd);
660 gr_vt_fd = -1;
661}
662
663int gr_fb_width(void)
664{
665 return gr_framebuffer[0].width;
666}
667
668int gr_fb_height(void)
669{
670 return gr_framebuffer[0].height;
671}
672
673gr_pixel *gr_fb_data(void)
674{
675 return (unsigned short *) gr_mem_surface.data;
676}
677
678void gr_fb_blank(int blank)
679{
680 int ret;
681
682 ret = ioctl(gr_fb_fd, FBIOBLANK, blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK);
683 if (ret < 0)
684 perror("ioctl(): blank");
685}
686
687int gr_get_surface(gr_surface* surface)
688{
689 GGLSurface* ms = malloc(sizeof(GGLSurface));
690 if (!ms) return -1;
691
692 // Allocate the data
693 get_memory_surface(ms);
694
695 // Now, copy the data
696 memcpy(ms->data, gr_mem_surface.data, vi.xres * vi.yres * vi.bits_per_pixel / 8);
697
698 *surface = (gr_surface*) ms;
699 return 0;
700}
701
702int gr_free_surface(gr_surface surface)
703{
704 if (!surface)
705 return -1;
706
707 GGLSurface* ms = (GGLSurface*) surface;
708 free(ms->data);
709 free(ms);
710 return 0;
711}
712
713void gr_write_frame_to_file(int fd)
714{
715 write(fd, gr_mem_surface.data, vi.xres * vi.yres * vi.bits_per_pixel / 8);
716}