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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
Hiemanshu Sharmaacf6a9b2012-11-21 11:28:36 -060054#define NUM_BUFFERS 2
55
Dees_Troy51a0e822012-09-05 15:24:24 -040056// #define PRINT_SCREENINFO 1 // Enables printing of screen info to log
57
58typedef struct {
59 GGLSurface texture;
60 unsigned offset[97];
61 unsigned cheight;
62 unsigned ascent;
63} GRFont;
64
65static GRFont *gr_font = 0;
66static GGLContext *gr_context = 0;
67static GGLSurface gr_font_texture;
Hiemanshu Sharmaacf6a9b2012-11-21 11:28:36 -060068static GGLSurface gr_framebuffer[NUM_BUFFERS];
Dees_Troy51a0e822012-09-05 15:24:24 -040069static GGLSurface gr_mem_surface;
70static unsigned gr_active_fb = 0;
Hiemanshu Sharma94f6c882012-11-21 11:25:22 -060071static unsigned double_buffering = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -040072
73static int gr_fb_fd = -1;
74static int gr_vt_fd = -1;
75
76static struct fb_var_screeninfo vi;
77static struct fb_fix_screeninfo fi;
78
79#ifdef PRINT_SCREENINFO
80static void print_fb_var_screeninfo()
81{
Dees_Troy2673cec2013-04-02 20:22:16 +000082 printf("vi.xres: %d\n", vi.xres);
83 printf("vi.yres: %d\n", vi.yres);
84 printf("vi.xres_virtual: %d\n", vi.xres_virtual);
85 printf("vi.yres_virtual: %d\n", vi.yres_virtual);
86 printf("vi.xoffset: %d\n", vi.xoffset);
87 printf("vi.yoffset: %d\n", vi.yoffset);
88 printf("vi.bits_per_pixel: %d\n", vi.bits_per_pixel);
89 printf("vi.grayscale: %d\n", vi.grayscale);
Dees_Troy51a0e822012-09-05 15:24:24 -040090}
91#endif
92
93static int get_framebuffer(GGLSurface *fb)
94{
95 int fd;
96 void *bits;
97
98 fd = open("/dev/graphics/fb0", O_RDWR);
99 if (fd < 0) {
100 perror("cannot open fb0");
101 return -1;
102 }
103
104 if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
105 perror("failed to get fb0 info");
106 close(fd);
107 return -1;
108 }
109
110 fprintf(stderr, "Pixel format: %dx%d @ %dbpp\n", vi.xres, vi.yres, vi.bits_per_pixel);
111
112 vi.bits_per_pixel = PIXEL_SIZE * 8;
113 if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_BGRA_8888) {
114 fprintf(stderr, "Pixel format: BGRA_8888\n");
115 if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
116 vi.red.offset = 8;
117 vi.red.length = 8;
118 vi.green.offset = 16;
119 vi.green.length = 8;
120 vi.blue.offset = 24;
121 vi.blue.length = 8;
122 vi.transp.offset = 0;
123 vi.transp.length = 8;
124 } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGBX_8888) {
125 fprintf(stderr, "Pixel format: RGBX_8888\n");
126 if (PIXEL_SIZE != 4) fprintf(stderr, "E: Pixel Size mismatch!\n");
127 vi.red.offset = 24;
128 vi.red.length = 8;
129 vi.green.offset = 16;
130 vi.green.length = 8;
131 vi.blue.offset = 8;
132 vi.blue.length = 8;
133 vi.transp.offset = 0;
134 vi.transp.length = 8;
135 } else if (PIXEL_FORMAT == GGL_PIXEL_FORMAT_RGB_565) {
136#ifdef RECOVERY_RGB_565
137 fprintf(stderr, "Pixel format: RGB_565\n");
138 vi.blue.offset = 0;
139 vi.green.offset = 5;
140 vi.red.offset = 11;
141#else
142 fprintf(stderr, "Pixel format: BGR_565\n");
143 vi.blue.offset = 11;
144 vi.green.offset = 5;
145 vi.red.offset = 0;
146#endif
147 if (PIXEL_SIZE != 2) fprintf(stderr, "E: Pixel Size mismatch!\n");
148 vi.blue.length = 5;
149 vi.green.length = 6;
150 vi.red.length = 5;
151 vi.blue.msb_right = 0;
152 vi.green.msb_right = 0;
153 vi.red.msb_right = 0;
154 vi.transp.offset = 0;
155 vi.transp.length = 0;
156 }
157 else
158 {
159 perror("unknown pixel format");
160 close(fd);
161 return -1;
162 }
163
164 vi.vmode = FB_VMODE_NONINTERLACED;
165 vi.activate = FB_ACTIVATE_NOW | FB_ACTIVATE_FORCE;
166
167 if (ioctl(fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
168 perror("failed to put fb0 info");
169 close(fd);
170 return -1;
171 }
172
173 if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
174 perror("failed to get fb0 info");
175 close(fd);
176 return -1;
177 }
178
179 bits = mmap(0, fi.smem_len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
180 if (bits == MAP_FAILED) {
181 perror("failed to mmap framebuffer");
182 close(fd);
183 return -1;
184 }
185
186#ifdef RECOVERY_GRAPHICS_USE_LINELENGTH
187 vi.xres_virtual = fi.line_length / PIXEL_SIZE;
188#endif
189
190 fb->version = sizeof(*fb);
191 fb->width = vi.xres;
192 fb->height = vi.yres;
193#ifdef BOARD_HAS_JANKY_BACKBUFFER
Dees_Troy2673cec2013-04-02 20:22:16 +0000194 printf("setting JANKY BACKBUFFER\n");
Dees_Troy51a0e822012-09-05 15:24:24 -0400195 fb->stride = fi.line_length/2;
196#else
197 fb->stride = vi.xres_virtual;
198#endif
199 fb->data = bits;
200 fb->format = PIXEL_FORMAT;
201 memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
202
203 fb++;
204
Hiemanshu Sharma94f6c882012-11-21 11:25:22 -0600205 /* check if we can use double buffering */
206 if (vi.yres * fi.line_length * 2 > fi.smem_len)
207 return fd;
208
209 double_buffering = 1;
210
Dees_Troy51a0e822012-09-05 15:24:24 -0400211 fb->version = sizeof(*fb);
212 fb->width = vi.xres;
213 fb->height = vi.yres;
214#ifdef BOARD_HAS_JANKY_BACKBUFFER
215 fb->stride = fi.line_length/2;
216 fb->data = (void*) (((unsigned) bits) + vi.yres * fi.line_length);
217#else
218 fb->stride = vi.xres_virtual;
219 fb->data = (void*) (((unsigned) bits) + vi.yres * fb->stride * PIXEL_SIZE);
220#endif
221 fb->format = PIXEL_FORMAT;
222 memset(fb->data, 0, vi.yres * fb->stride * PIXEL_SIZE);
223
224#ifdef PRINT_SCREENINFO
225 print_fb_var_screeninfo();
226#endif
227
228 return fd;
229}
230
231static void get_memory_surface(GGLSurface* ms) {
232 ms->version = sizeof(*ms);
233 ms->width = vi.xres;
234 ms->height = vi.yres;
235 ms->stride = vi.xres_virtual;
236 ms->data = malloc(vi.xres_virtual * vi.yres * PIXEL_SIZE);
237 ms->format = PIXEL_FORMAT;
238}
239
240static void set_active_framebuffer(unsigned n)
241{
Hiemanshu Sharma94f6c882012-11-21 11:25:22 -0600242 if (n > 1 || !double_buffering) return;
Hiemanshu Sharmaacf6a9b2012-11-21 11:28:36 -0600243 vi.yres_virtual = vi.yres * NUM_BUFFERS;
Dees_Troy51a0e822012-09-05 15:24:24 -0400244 vi.yoffset = n * vi.yres;
245// vi.bits_per_pixel = PIXEL_SIZE * 8;
246 if (ioctl(gr_fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
247 perror("active fb swap failed");
248 }
249}
250
251void gr_flip(void)
252{
253 GGLContext *gl = gr_context;
254
255 /* swap front and back buffers */
Hiemanshu Sharma94f6c882012-11-21 11:25:22 -0600256 if (double_buffering)
257 gr_active_fb = (gr_active_fb + 1) & 1;
Dees_Troy51a0e822012-09-05 15:24:24 -0400258
259#ifdef BOARD_HAS_FLIPPED_SCREEN
260 /* flip buffer 180 degrees for devices with physicaly inverted screens */
261 unsigned int i;
262 for (i = 1; i < (vi.xres * vi.yres); i++) {
263 unsigned short tmp = gr_mem_surface.data[i];
264 gr_mem_surface.data[i] = gr_mem_surface.data[(vi.xres * vi.yres * 2) - i];
265 gr_mem_surface.data[(vi.xres * vi.yres * 2) - i] = tmp;
266 }
267#endif
268
269 /* copy data from the in-memory surface to the buffer we're about
270 * to make active. */
271 memcpy(gr_framebuffer[gr_active_fb].data, gr_mem_surface.data,
272 vi.xres_virtual * vi.yres * PIXEL_SIZE);
273
274 /* inform the display driver */
275 set_active_framebuffer(gr_active_fb);
276}
277
278void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
279{
280 GGLContext *gl = gr_context;
281 GGLint color[4];
282 color[0] = ((r << 8) | r) + 1;
283 color[1] = ((g << 8) | g) + 1;
284 color[2] = ((b << 8) | b) + 1;
285 color[3] = ((a << 8) | a) + 1;
286 gl->color4xv(gl, color);
287}
288
289int gr_measureEx(const char *s, void* font)
290{
291 GRFont* fnt = (GRFont*) font;
292 int total = 0;
293 unsigned pos;
294 unsigned off;
295
296 if (!fnt) fnt = gr_font;
297
298 while ((off = *s++))
299 {
300 off -= 32;
301 if (off < 96)
302 total += (fnt->offset[off+1] - fnt->offset[off]);
303 }
304 return total;
305}
306
307unsigned character_width(const char *s, void* pFont)
308{
309 GRFont *font = (GRFont*) pFont;
310 unsigned off;
311
312 /* Handle default font */
313 if (!font) font = gr_font;
314
315 off = *s - 32;
316 if (off == 0)
317 return 0;
318
319 return font->offset[off+1] - font->offset[off];
320}
321
322int gr_textEx(int x, int y, const char *s, void* pFont)
323{
324 GGLContext *gl = gr_context;
325 GRFont *font = (GRFont*) pFont;
326 unsigned off;
327 unsigned cwidth;
328
329 /* Handle default font */
330 if (!font) font = gr_font;
331
332 gl->bindTexture(gl, &font->texture);
333 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
334 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
335 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
336 gl->enable(gl, GGL_TEXTURE_2D);
337
338 while((off = *s++)) {
339 off -= 32;
340 cwidth = 0;
341 if (off < 96) {
342 cwidth = font->offset[off+1] - font->offset[off];
343 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
344 gl->recti(gl, x, y, x + cwidth, y + font->cheight);
345 x += cwidth;
346 }
347 }
348
349 return x;
350}
351
352int gr_textExW(int x, int y, const char *s, void* pFont, int max_width)
353{
354 GGLContext *gl = gr_context;
355 GRFont *font = (GRFont*) pFont;
356 unsigned off;
357 unsigned cwidth;
358
359 /* Handle default font */
360 if (!font) font = gr_font;
361
362 gl->bindTexture(gl, &font->texture);
363 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
364 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
365 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
366 gl->enable(gl, GGL_TEXTURE_2D);
367
368 while((off = *s++)) {
369 off -= 32;
370 cwidth = 0;
371 if (off < 96) {
372 cwidth = font->offset[off+1] - font->offset[off];
373 if ((x + (int)cwidth) < max_width) {
374 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
375 gl->recti(gl, x, y, x + cwidth, y + font->cheight);
376 x += cwidth;
377 } else {
378 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
379 gl->recti(gl, x, y, max_width, y + font->cheight);
380 x = max_width;
381 return x;
382 }
383 }
384 }
385
386 return x;
387}
388
389int gr_textExWH(int x, int y, const char *s, void* pFont, int max_width, int max_height)
390{
391 GGLContext *gl = gr_context;
392 GRFont *font = (GRFont*) pFont;
393 unsigned off;
394 unsigned cwidth;
395 int rect_x, rect_y;
396
397 /* Handle default font */
398 if (!font) font = gr_font;
399
400 gl->bindTexture(gl, &font->texture);
401 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
402 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
403 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
404 gl->enable(gl, GGL_TEXTURE_2D);
405
406 while((off = *s++)) {
407 off -= 32;
408 cwidth = 0;
409 if (off < 96) {
410 cwidth = font->offset[off+1] - font->offset[off];
411 if ((x + (int)cwidth) < max_width)
412 rect_x = x + cwidth;
413 else
414 rect_x = max_width;
Dees_Troyf7596752012-09-28 13:21:36 -0400415 if (y + font->cheight < (unsigned int)(max_height))
Dees_Troy51a0e822012-09-05 15:24:24 -0400416 rect_y = y + font->cheight;
417 else
418 rect_y = max_height;
419
420 gl->texCoord2i(gl, (font->offset[off]) - x, 0 - y);
421 gl->recti(gl, x, y, rect_x, rect_y);
422 x += cwidth;
423 if (x > max_width)
424 return x;
425 }
426 }
427
428 return x;
429}
430
431int twgr_text(int x, int y, const char *s)
432{
433 GGLContext *gl = gr_context;
434 GRFont *font = gr_font;
435 unsigned off;
Dees_Troyf7596752012-09-28 13:21:36 -0400436 unsigned cwidth = 0;
Dees_Troy51a0e822012-09-05 15:24:24 -0400437
438 y -= font->ascent;
439
440 gl->bindTexture(gl, &font->texture);
441 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
442 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
443 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
444 gl->enable(gl, GGL_TEXTURE_2D);
445
446 while((off = *s++)) {
447 off -= 32;
448 if (off < 96) {
449 cwidth = font->offset[off+1] - font->offset[off];
450 gl->texCoord2i(gl, (off * cwidth) - x, 0 - y);
451 gl->recti(gl, x, y, x + cwidth, y + font->cheight);
452 }
453 x += cwidth;
454 }
455
456 return x;
457}
458
459void gr_fill(int x, int y, int w, int h)
460{
461 GGLContext *gl = gr_context;
462 gl->disable(gl, GGL_TEXTURE_2D);
463 gl->recti(gl, x, y, x + w, y + h);
464}
465
466void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy) {
467 if (gr_context == NULL) {
468 return;
469 }
470
471 GGLContext *gl = gr_context;
472 gl->bindTexture(gl, (GGLSurface*) source);
473 gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
474 gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
475 gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
476 gl->enable(gl, GGL_TEXTURE_2D);
477 gl->texCoord2i(gl, sx - dx, sy - dy);
478 gl->recti(gl, dx, dy, dx + w, dy + h);
479}
480
481unsigned int gr_get_width(gr_surface surface) {
482 if (surface == NULL) {
483 return 0;
484 }
485 return ((GGLSurface*) surface)->width;
486}
487
488unsigned int gr_get_height(gr_surface surface) {
489 if (surface == NULL) {
490 return 0;
491 }
492 return ((GGLSurface*) surface)->height;
493}
494
495void* gr_loadFont(const char* fontName)
496{
497 int fd;
498 GRFont *font = 0;
499 GGLSurface *ftex;
500 unsigned char *bits, *rle;
501 unsigned char *in, data;
502 unsigned width, height;
503 unsigned element;
504
505 fd = open(fontName, O_RDONLY);
506 if (fd == -1)
507 {
508 char tmp[128];
509
510 sprintf(tmp, "/res/fonts/%s.dat", fontName);
511 fd = open(tmp, O_RDONLY);
512 if (fd == -1)
513 return NULL;
514 }
515
516 font = calloc(sizeof(*font), 1);
517 ftex = &font->texture;
518
519 read(fd, &width, sizeof(unsigned));
520 read(fd, &height, sizeof(unsigned));
521 read(fd, font->offset, sizeof(unsigned) * 96);
522 font->offset[96] = width;
523
524 bits = malloc(width * height);
525 memset(bits, 0, width * height);
526
527 unsigned pos = 0;
528 while (pos < width * height)
529 {
530 int bit;
531
532 read(fd, &data, 1);
533 for (bit = 0; bit < 8; bit++)
534 {
535 if (data & (1 << (7-bit))) bits[pos++] = 255;
536 else bits[pos++] = 0;
537
538 if (pos == width * height) break;
539 }
540 }
541 close(fd);
542
543 ftex->version = sizeof(*ftex);
544 ftex->width = width;
545 ftex->height = height;
546 ftex->stride = width;
547 ftex->data = (void*) bits;
548 ftex->format = GGL_PIXEL_FORMAT_A_8;
549 font->cheight = height;
550 font->ascent = height - 2;
551 return (void*) font;
552}
553
554int gr_getFontDetails(void* font, unsigned* cheight, unsigned* maxwidth)
555{
556 GRFont *fnt = (GRFont*) font;
557
558 if (!fnt) fnt = gr_font;
559 if (!fnt) return -1;
560
561 if (cheight) *cheight = fnt->cheight;
562 if (maxwidth)
563 {
564 int pos;
565 *maxwidth = 0;
566 for (pos = 0; pos < 96; pos++)
567 {
568 unsigned int width = fnt->offset[pos+1] - fnt->offset[pos];
569 if (width > *maxwidth)
570 {
571 *maxwidth = width;
572 }
573 }
574 }
575 return 0;
576}
577
578static void gr_init_font(void)
579{
580 int fontRes;
581 GGLSurface *ftex;
582 unsigned char *bits, *rle;
583 unsigned char *in, data;
584 unsigned width, height;
585 unsigned element;
586
587 gr_font = calloc(sizeof(*gr_font), 1);
588 ftex = &gr_font->texture;
589
590 width = font.width;
591 height = font.height;
592
593 bits = malloc(width * height);
594 rle = bits;
595
596 in = font.rundata;
597 while((data = *in++))
598 {
599 memset(rle, (data & 0x80) ? 255 : 0, data & 0x7f);
600 rle += (data & 0x7f);
601 }
602 for (element = 0; element < 97; element++)
603 {
604 gr_font->offset[element] = (element * font.cwidth);
605 }
606
607 ftex->version = sizeof(*ftex);
608 ftex->width = width;
609 ftex->height = height;
610 ftex->stride = width;
611 ftex->data = (void*) bits;
612 ftex->format = GGL_PIXEL_FORMAT_A_8;
613 gr_font->cheight = height;
614 gr_font->ascent = height - 2;
615 return;
616}
617
618int gr_init(void)
619{
620 gglInit(&gr_context);
621 GGLContext *gl = gr_context;
622
623 gr_init_font();
624 gr_vt_fd = open("/dev/tty0", O_RDWR | O_SYNC);
625 if (gr_vt_fd < 0) {
626 // This is non-fatal; post-Cupcake kernels don't have tty0.
627 } else if (ioctl(gr_vt_fd, KDSETMODE, (void*) KD_GRAPHICS)) {
628 // However, if we do open tty0, we expect the ioctl to work.
629 perror("failed KDSETMODE to KD_GRAPHICS on tty0");
630 gr_exit();
631 return -1;
632 }
633
634 gr_fb_fd = get_framebuffer(gr_framebuffer);
635 if (gr_fb_fd < 0) {
636 perror("Unable to get framebuffer.\n");
637 gr_exit();
638 return -1;
639 }
640
641 get_memory_surface(&gr_mem_surface);
642
643 fprintf(stderr, "framebuffer: fd %d (%d x %d)\n",
644 gr_fb_fd, gr_framebuffer[0].width, gr_framebuffer[0].height);
645
646 /* start with 0 as front (displayed) and 1 as back (drawing) */
647 gr_active_fb = 0;
648 set_active_framebuffer(0);
649 gl->colorBuffer(gl, &gr_mem_surface);
650
651 gl->activeTexture(gl, 0);
652 gl->enable(gl, GGL_BLEND);
653 gl->blendFunc(gl, GGL_SRC_ALPHA, GGL_ONE_MINUS_SRC_ALPHA);
654
655// gr_fb_blank(true);
656// gr_fb_blank(false);
657
658 return 0;
659}
660
661void gr_exit(void)
662{
663 close(gr_fb_fd);
664 gr_fb_fd = -1;
665
666 free(gr_mem_surface.data);
667
668 ioctl(gr_vt_fd, KDSETMODE, (void*) KD_TEXT);
669 close(gr_vt_fd);
670 gr_vt_fd = -1;
671}
672
673int gr_fb_width(void)
674{
675 return gr_framebuffer[0].width;
676}
677
678int gr_fb_height(void)
679{
680 return gr_framebuffer[0].height;
681}
682
683gr_pixel *gr_fb_data(void)
684{
685 return (unsigned short *) gr_mem_surface.data;
686}
687
Dees_Troy70237dc2013-02-28 21:31:48 +0000688int gr_fb_blank(int blank)
Dees_Troy51a0e822012-09-05 15:24:24 -0400689{
690 int ret;
691
692 ret = ioctl(gr_fb_fd, FBIOBLANK, blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK);
693 if (ret < 0)
694 perror("ioctl(): blank");
Dees_Troy70237dc2013-02-28 21:31:48 +0000695 return ret;
Dees_Troy51a0e822012-09-05 15:24:24 -0400696}
697
698int gr_get_surface(gr_surface* surface)
699{
700 GGLSurface* ms = malloc(sizeof(GGLSurface));
701 if (!ms) return -1;
702
703 // Allocate the data
704 get_memory_surface(ms);
705
706 // Now, copy the data
707 memcpy(ms->data, gr_mem_surface.data, vi.xres * vi.yres * vi.bits_per_pixel / 8);
708
709 *surface = (gr_surface*) ms;
710 return 0;
711}
712
713int gr_free_surface(gr_surface surface)
714{
715 if (!surface)
716 return -1;
717
718 GGLSurface* ms = (GGLSurface*) surface;
719 free(ms->data);
720 free(ms);
721 return 0;
722}
723
724void gr_write_frame_to_file(int fd)
725{
726 write(fd, gr_mem_surface.data, vi.xres * vi.yres * vi.bits_per_pixel / 8);
727}