Sound.c

Go to the documentation of this file.

/*
 * ObjectivelyMVC: Object oriented MVC framework for OpenGL, SDL2 and GNU C.
 * Copyright (C) 2014 Jay Dolan <jay@jaydolan.com>
 *
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 *
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 *
 * 3. This notice may not be removed or altered from any source distribution.
 */
 
#include <assert.h>
 
#include <SDL_rwops.h>
 
#include "Sound.h"
 
#define _Class _Sound
 
#pragma mark - Object
 
static void dealloc(Object *self) {
 
    Sound *this = (Sound *) self;
 
    Mix_FreeChunk(this->chunk);
 
    super(Object, self, dealloc);
}
 
#pragma mark - Sound
 
static Sound *initWithBytes(Sound *self, const uint8_t *bytes, size_t length) {
 
    SDL_RWops *src = SDL_RWFromConstMem(bytes, (int) length);
    if (src) {
        self = $(self, initWithChunk, Mix_LoadWAV_RW(src, 1));
    } else {
        self = release(self);
    }
 
    return self;
}
 
static Sound *initWithData(Sound *self, const Data *data) {
 
    if (data) {
        self = $(self, initWithBytes, data->bytes, data->length);
    } else {
        self = release(self);
    }
 
    return self;
}
 
static Sound *initWithChunk(Sound *self, Mix_Chunk *chunk) {
 
    self = (Sound *) super(Object, self, init);
    if (self) {
        self->chunk = chunk;
        assert(self->chunk);
    }
 
    return self;
}
 
static Sound *initWithResource(Sound *self, const Resource *resource) {
 
    if (resource) {
        self = $(self, initWithData, resource->data);
    } else {
        self = release(self);
    }
 
    return self;
}
 
static Sound *initWithResourceName(Sound *self, const char *name) {
 
    Resource *resource = $$(Resource, resourceWithName, name);
 
    self = $(self, initWithResource, resource);
 
    release(resource);
 
    return self;
}
 
static Sound *soundWithBytes(const uint8_t *bytes, size_t length) {
    return $(alloc(Sound), initWithBytes, bytes, length);
}
 
static Sound *soundWithChunk(Mix_Chunk *chunk) {
    return $(alloc(Sound), initWithChunk, chunk);
}
 
static Sound *soundWithData(const Data *data) {
    return $(alloc(Sound), initWithData, data);
}
 
static Sound *soundWithResource(const Resource *resource) {
    return $(alloc(Sound), initWithResource, resource);
}
 
static Sound *soundWithResourceName(const char *name) {
    return $(alloc(Sound), initWithResourceName, name);
}
 
#pragma mark - Class lifecycle
 
static void initialize(Class *clazz) {
 
    ((ObjectInterface *) clazz->interface)->dealloc = dealloc;
 
    ((SoundInterface *) clazz->interface)->initWithBytes = initWithBytes;
    ((SoundInterface *) clazz->interface)->initWithChunk = initWithChunk;
    ((SoundInterface *) clazz->interface)->initWithData = initWithData;
    ((SoundInterface *) clazz->interface)->initWithResource = initWithResource;
    ((SoundInterface *) clazz->interface)->initWithResourceName = initWithResourceName;
 
    ((SoundInterface *) clazz->interface)->soundWithBytes = soundWithBytes;
    ((SoundInterface *) clazz->interface)->soundWithChunk = soundWithChunk;
    ((SoundInterface *) clazz->interface)->soundWithData = soundWithData;
    ((SoundInterface *) clazz->interface)->soundWithResource = soundWithResource;
    ((SoundInterface *) clazz->interface)->soundWithResourceName = soundWithResourceName;
}
 
Class *_Sound(void) {
    static Class *clazz;
    static Once once;
 
    do_once(&once, {
        clazz = _initialize(&(const ClassDef) {
            .name = "Sound",
            .superclass = _Object(),
            .instanceSize = sizeof(Sound),
            .interfaceOffset = offsetof(Sound, interface),
            .interfaceSize = sizeof(SoundInterface),
            .initialize = initialize,
        });
    });
 
    return clazz;
}
 
#undef _Class