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comparison render_sdl.c @ 1103:22e87b739ad6

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WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
author Michael Pavone <pavone@retrodev.com>
date Fri, 09 Dec 2016 09:48:48 -0800
parents c15896605bf2
children 928a65750345
comparison
equal deleted inserted replaced
1102:c15896605bf2 1103:22e87b739ad6
7 #include <stdio.h> 7 #include <stdio.h>
8 #include <string.h> 8 #include <string.h>
9 #include <math.h> 9 #include <math.h>
10 #include "render.h" 10 #include "render.h"
11 #include "blastem.h" 11 #include "blastem.h"
12 #include "genesis.h"
12 #include "io.h" 13 #include "io.h"
13 #include "util.h" 14 #include "util.h"
14 15
15 #ifndef DISABLE_OPENGL 16 #ifndef DISABLE_OPENGL
16 #include <GL/glew.h> 17 #include <GL/glew.h>
29 30
30 static uint8_t render_gl = 1; 31 static uint8_t render_gl = 1;
31 static uint8_t scanlines = 0; 32 static uint8_t scanlines = 0;
32 33
33 static uint32_t last_frame = 0; 34 static uint32_t last_frame = 0;
34
35 static uint32_t min_delay;
36 static uint32_t frame_delay = 1000/60;
37 35
38 static int16_t * current_psg = NULL; 36 static int16_t * current_psg = NULL;
39 static int16_t * current_ym = NULL; 37 static int16_t * current_ym = NULL;
40 38
41 static uint32_t buffer_samples, sample_rate; 39 static uint32_t buffer_samples, sample_rate;
243 SDL_DestroyTexture(sdl_textures[i]); 241 SDL_DestroyTexture(sdl_textures[i]);
244 } 242 }
245 } 243 }
246 } 244 }
247 245
248 void render_init(int width, int height, char * title, uint32_t fps, uint8_t fullscreen) 246 void render_init(int width, int height, char * title, uint8_t fullscreen)
249 { 247 {
250 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK) < 0) { 248 if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_JOYSTICK) < 0) {
251 fatal_error("Unable to init SDL: %s\n", SDL_GetError()); 249 fatal_error("Unable to init SDL: %s\n", SDL_GetError());
252 } 250 }
253 atexit(SDL_Quit); 251 atexit(SDL_Quit);
360 render_alloc_surfaces(); 358 render_alloc_surfaces();
361 def.ptrval = "off"; 359 def.ptrval = "off";
362 scanlines = !strcmp(tern_find_path_default(config, "video\0scanlines\0", def).ptrval, "on"); 360 scanlines = !strcmp(tern_find_path_default(config, "video\0scanlines\0", def).ptrval, "on");
363 361
364 caption = title; 362 caption = title;
365 min_delay = 0;
366 for (int i = 0; i < 100; i++) {
367 uint32_t start = SDL_GetTicks();
368 SDL_Delay(1);
369 uint32_t delay = SDL_GetTicks()-start;
370 if (delay > min_delay) {
371 min_delay = delay;
372 }
373 }
374 if (!min_delay) {
375 min_delay = 1;
376 }
377 printf("minimum delay: %d\n", min_delay);
378
379 frame_delay = 1000/fps;
380 363
381 audio_mutex = SDL_CreateMutex(); 364 audio_mutex = SDL_CreateMutex();
382 psg_cond = SDL_CreateCond(); 365 psg_cond = SDL_CreateCond();
383 ym_cond = SDL_CreateCond(); 366 ym_cond = SDL_CreateCond();
384 audio_ready = SDL_CreateCond(); 367 audio_ready = SDL_CreateCond();