play music

inc/lzy.h

@@ -30,6 +30,16 @@ extern "C" {
 
 #define LZY_UNUSED(x) (void)(x)
 
+#ifdef FXCG50
+typedef void LZY_Music;
+#else
+#ifndef LZY_SDL_MIXER_INCLUDE
+#define LZY_SDL_MIXER_INCLUDE <SDL_mixer.h>
+#endif
+#include LZY_SDL_MIXER_INCLUDE
+typedef Mix_Music LZY_Music;
+#endif
+
 int LZY_Init(const char *title, int target_fps, const char *tset_path,
              const char *font_path);
 void LZY_Quit(void);
@@ -42,6 +52,9 @@ int LZY_DrawRect(int x, int y, unsigned int w, unsigned int h);
 int LZY_DrawFillRect(int x, int y, unsigned int w, unsigned int h);
 int LZY_DrawTile(unsigned int id, int x, int y);
 int LZY_DrawChar(unsigned char chr, int x, int y);
+LZY_Music *LZY_MusicLoad(const char *path);
+int LZY_MusicDestroy(LZY_Music *music);
+int LZY_MusicPlay(LZY_Music *music, int loops);
 void LZY_CycleEvents(void);
 int LZY_KeyDown(unsigned int key);
 int LZY_ShouldQuit(void);
@@ -87,6 +100,9 @@ enum LZY_ScanCode {
 #ifndef LZY_SDL_IMAGE_INCLUDE
 #define LZY_SDL_IMAGE_INCLUDE <SDL_image.h>
 #endif
+#ifndef LZY_SDL_MIXER_INCLUDE
+#define LZY_SDL_MIXER_INCLUDE <SDL_mixer.h>
+#endif
 #ifndef LZY_DISPLAY_WIDTH
 #define LZY_DISPLAY_WIDTH 396
 #endif
@@ -269,6 +285,20 @@ int LZY_DrawText(const char *text, int x, int y) {
 #endif
 }
 
+LZY_Music *LZY_MusicLoad(const char *path) {
+	LZY_UNUSED(path);
+	return NULL;
+}
+int LZY_MusicDestroy(LZY_Music *music) {
+	LZY_UNUSED(music);
+	return -1;
+}
+int LZY_MusicPlay(LZY_Music *music, int loops) {
+	LZY_UNUSED(music);
+	LZY_UNUSED(loops);
+	return -1;
+}
+
 void LZY_CycleEvents(void) {
 	clearevents();
 	should_quit = should_quit || keydown(KEY_EXIT);
@@ -293,6 +323,7 @@ const char *LZY_GetError(void) {
 #else /* end FXCG50, begin SDL2 */
 #include LZY_SDL_INCLUDE
 #include LZY_SDL_IMAGE_INCLUDE
+#include LZY_SDL_MIXER_INCLUDE
 #include <stdint.h>
 
 static const char *error = NULL;
@@ -310,11 +341,23 @@ static uint64_t next_time;
 
 int LZY_Init(const char *title, int target_fps, const char *tset_path,
              const char *font_path) {
-	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
+	const int img_flags = IMG_INIT_PNG;
+
+	if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0) {
 		error = SDL_GetError();
 		return -1;
 	}
 
+	if ((IMG_Init(img_flags) & img_flags) != img_flags) {
+		error = IMG_GetError();
+		return -2;
+	}
+
+	if (Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 2048) < 0) {
+		error = Mix_GetError();
+		return -3;
+	}
+
 	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, 0);
 
 	window = SDL_CreateWindow(title, SDL_WINDOWPOS_UNDEFINED,
@@ -322,7 +365,7 @@ int LZY_Init(const char *title, int target_fps, const char *tset_path,
 	                          LZY_DISPLAY_HEIGHT, SDL_WINDOW_RESIZABLE);
 	if (window == NULL) {
 		error = SDL_GetError();
-		return -2;
+		return -4;
 	}
 
 	SDL_SetWindowMinimumSize(window, LZY_DISPLAY_WIDTH, LZY_DISPLAY_HEIGHT);
@@ -330,7 +373,7 @@ int LZY_Init(const char *title, int target_fps, const char *tset_path,
 	renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
 	if (renderer == NULL) {
 		error = SDL_GetError();
-		return -3;
+		return -5;
 	}
 
 	target = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGB888,
@@ -338,18 +381,18 @@ int LZY_Init(const char *title, int target_fps, const char *tset_path,
 	                           LZY_DISPLAY_HEIGHT);
 	if (target == NULL) {
 		error = SDL_GetError();
-		return -4;
+		return -6;
 	}
 
 	tset = IMG_LoadTexture(renderer, tset_path);
 	if (tset == NULL) {
 		error = IMG_GetError();
-		return -5;
+		return -7;
 	}
 
 	if (SDL_QueryTexture(tset, NULL, NULL, &tset_width, &tset_height) < 0) {
 		error = SDL_GetError();
-		return -6;
+		return -8;
 	}
 	tset_width /= LZY_TILE_SIZE;
 	tset_height /= LZY_TILE_SIZE;
@@ -357,12 +400,12 @@ int LZY_Init(const char *title, int target_fps, const char *tset_path,
 	font = IMG_LoadTexture(renderer, font_path);
 	if (font == NULL) {
 		error = IMG_GetError();
-		return -7;
+		return -9;
 	}
 
 	if (SDL_QueryTexture(font, NULL, NULL, &font_width, &font_height) < 0) {
 		error = SDL_GetError();
-		return -8;
+		return -10;
 	}
 	font_width /= LZY_CHR_WIDTH;
 	font_height /= LZY_CHR_HEIGHT;
@@ -397,6 +440,8 @@ void LZY_Quit(void) {
 		window = NULL;
 	}
 
+	Mix_Quit();
+	IMG_Quit();
 	SDL_Quit();
 }
 
@@ -576,6 +621,31 @@ int LZY_DrawText(const char *text, int x, int y) {
 	return err;
 }
 
+LZY_Music *LZY_MusicLoad(const char *path) {
+	LZY_Music *const music = Mix_LoadMUS(path);
+	if (music == NULL)
+		error = Mix_GetError();
+	return music;
+}
+
+int LZY_MusicPlay(LZY_Music *music, int loops) {
+	if (Mix_PlayMusic(music, loops) < 0) {
+		error = Mix_GetError();
+		return -1;
+	}
+	return 0;
+}
+
+int LZY_MusicDestroy(LZY_Music *music) {
+	if (music == NULL) {
+		error = "music is NULL";
+		return -1;
+	}
+
+	Mix_FreeMusic(music);
+	return 0;
+}
+
 void LZY_CycleEvents(void) {
 	static const SDL_Scancode sc[LZYK_COUNT] = {
 	    SDL_SCANCODE_LEFT, SDL_SCANCODE_RIGHT, SDL_SCANCODE_UP,

meson.build

@@ -5,6 +5,7 @@ cc = meson.get_compiler('c')
 sdl2deps = [
 	dependency('sdl2', version: '>=2.0.0'),
 	dependency('SDL2_image', version: '>=2.0.0'),
+	dependency('SDL2_mixer', version: '>=2.0.0'),
 	cc.find_library('m', required: true),
 	cc.find_library('dl', required: true),
 ]