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#include "TZR.h"
#include "TZR_globals.h"
#include "sdl_error.h"
#include <SDL2/SDL.h>
#include <SDL2/SDL_opengl.h>
#include <SDL2/SDL_mixer.h>
#include <SDL2/SDL_mouse.h>
#include <errno.h>
#include <unistd.h>
static int
_sdl_error(void)
{
sdl_error(-1);
TZR_Quit();
return -1;
}
int
_TZR_Init(const TZR_Config *config)
{
memcpy(&___tzr_config, config, sizeof(TZR_Config));
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0)
return _sdl_error();
if (___tzr_config.mixer == TZR_MIXER_FLAC &&
Mix_Init(MIX_INIT_FLAC) != MIX_INIT_FLAC)
{
TZR_Log("%s", Mix_GetError());
___tzr_config.mixer = TZR_MIXER_OFF;
}
int chdir_rv;
if (___tzr_config.basepath == NULL) {
char *const basepath = SDL_GetBasePath();
if (basepath == NULL)
return _sdl_error();
chdir_rv = chdir(basepath);
SDL_free(basepath);
} else
chdir_rv = chdir(___tzr_config.basepath);
if (chdir_rv < 0)
return TZR_Log("%s", strerror(errno)), TZR_Quit(), -1;
___tzr_window =
SDL_CreateWindow(config->title,
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
___tzr_config.width * ___tzr_config.ratio
* ___tzr_config.scale,
___tzr_config.height * ___tzr_config.scale,
SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL);
if (___tzr_window == NULL) {
___tzr_window =
SDL_CreateWindow(config->title,
SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED,
___tzr_config.width * ___tzr_config.ratio
* ___tzr_config.scale,
___tzr_config.height * ___tzr_config.scale,
SDL_WINDOW_RESIZABLE );
}
if (___tzr_window == NULL)
return _sdl_error();
#ifdef TZR_OPENGL
___tzr_gl_ctx = SDL_GL_CreateContext(___tzr_window);
if (___tzr_gl_ctx == NULL) {
TZR_Log("%s", SDL_GetError());
___tzr_config.mipmaps = false;
} else if (___tzr_config.mipmaps) do {
const char *gl_version = (const char *)glGetString(GL_VERSION);
if (gl_version == NULL || strlen(gl_version) < 3) {
___tzr_config.mipmaps = false;
break;
}
const int major = atoi(gl_version);
const int minor = atoi(gl_version + 2);
if (major < 3)
___tzr_config.mipmaps = false;
} while (0);
#endif /* TZR_OPENGL */
#ifdef __EMSCRIPTEN__
/* TODO: verify than this is unneeded */
___tzr_renderer = SDL_CreateRenderer(___tzr_window, -1,
SDL_RENDERER_SOFTWARE);
#else
___tzr_renderer = SDL_CreateRenderer(___tzr_window, -1,
SDL_RENDERER_ACCELERATED);
if (___tzr_renderer == NULL) {
TZR_Log("%s", SDL_GetError());
___tzr_renderer = SDL_CreateRenderer(___tzr_window, -1,
SDL_RENDERER_SOFTWARE);
}
#endif /* __EMSCRIPTEN__ */
if (___tzr_renderer == NULL)
return _sdl_error();
if (TZR_SetViewportSize(___tzr_config.width, ___tzr_config.height)) {
TZR_Quit();
return -1;
}
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY,
___tzr_config.scale_linear ? "1" : "0");
___tzr_tick = 0;
if (___tzr_config.target_fps > 0) {
___tzr_min_dt = 1000 / ___tzr_config.target_fps;
___tzr_next_time = SDL_GetTicks64();
}
if (!___tzr_config.show_cursor)
SDL_ShowCursor(SDL_FALSE);
___tzr_mouse_x = ___tzr_config.width / 2;
___tzr_mouse_y = ___tzr_config.height / 2;
/* Setup audio. */
do if (___tzr_config.mixer) {
if (Mix_OpenAudio(48000, MIX_DEFAULT_FORMAT, 8, 1024) < 0) {
sdl_error(0);
Mix_Quit();
___tzr_config.mixer = false;
break;
}
#ifdef TZR_SOLOUD
___tzr_soloud = Soloud_create();
if (___tzr_soloud == NULL) {
TZR_Log("Soloud_create failed");
Mix_Quit();
___tzr_config.mixer = false;
break;
}
if (Soloud_init(___tzr_soloud)) {
TZR_Log("Soloud_init failed");
Soloud_destroy(___tzr_soloud);
___tzr_soloud = NULL;
Mix_Quit();
___tzr_config.mixer = false;
break;
}
#endif /* TZR_SOLOUD */
} while (0);
return 0;
}
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