Class: SDL2::Mixer::Chunk

Inherits:

Object

• Object
• SDL2::Mixer::Chunk

show all

Defined in:

mixer.c,
mixer.c

Overview

Instance Attribute Summary (collapse)

• - (Object) filename readonly

Class Method Summary (collapse)

• + (Array<String>) decoders

  Get the names of the sample decoders.

• + (SDL2::Mixer::Chunk) load(path)

  Load a sample from file.

Instance Method Summary (collapse)

• - (nil) destroy

  Deallocate the sample memory.

• - (Boolean) destroy?

  Return true if the memory is deallocated by #destroy.

• - (String) inspect

  Inspection string.

• - (Integer) volume

  Get the volume of the sample.

• - (vol) volume=(vol)

  Set the volume of the sample.

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# File 'mixer.c', line 824

static VALUE Chunk_s_decoders(VALUE self)
{
    int i;
    int num_decoders = Mix_GetNumChunkDecoders();
    VALUE ary = rb_ary_new();
    for (i=0; i < num_decoders; ++i)
        rb_ary_push(ary, rb_usascii_str_new_cstr(Mix_GetChunkDecoder(i)));
    return ary;
}

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# File 'mixer.c', line 808

static VALUE Chunk_s_load(VALUE self, VALUE fname)
{
    Mix_Chunk* chunk = Mix_LoadWAV(StringValueCStr(fname));
    VALUE c;
    if (!chunk)
        MIX_ERROR();
    c = Chunk_new(chunk);
    rb_iv_set(c, "@filename", fname);
    return c;
}

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# File 'mixer.c', line 842

static VALUE Chunk_destroy(VALUE self)
{
    Chunk* c = Get_Chunk(self);
    if (c->chunk) Mix_FreeChunk(c->chunk);
    c->chunk = NULL;
    return Qnil;
}

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# File 'mixer.c', line 877

static VALUE Chunk_inspect(VALUE self)
{
    VALUE filename = rb_iv_get(self, "@filename");
    if (RTEST(Chunk_destroy_p(self)))
        return rb_sprintf("<%s: destroyed>", rb_obj_classname(self));
    
    return rb_sprintf("<%s: filename=\"%s\" volume=%d>",
                      rb_obj_classname(self),
                      StringValueCStr(filename),
                      Mix_VolumeChunk(Get_Mix_Chunk(self), -1));
}

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# File 'mixer.c', line 857

static VALUE Chunk_volume(VALUE self)
{
    return INT2NUM(Mix_VolumeChunk(Get_Mix_Chunk(self), -1));
}

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# File 'mixer.c', line 871

static VALUE Chunk_set_volume(VALUE self, VALUE vol)
{
    return INT2NUM(Mix_VolumeChunk(Get_Mix_Chunk(self), NUM2INT(vol)));
}