コード例 #1
0
ファイル: rendduh.c プロジェクト: eukos16/NGUNIX
long duh_render(
	DUH_SIGRENDERER *sigrenderer,
	int bits, int unsign,
	float volume, float delta,
	long size, void *sptr
)
{
	long n;

	sample_t **sampptr;

	int n_channels;

	ASSERT(bits == 8 || bits == 16);
	ASSERT(sptr);

	if (!sigrenderer)
		return 0;

	n_channels = duh_sigrenderer_get_n_channels(sigrenderer);

	ASSERT(n_channels > 0);
	/* This restriction will be removed when need be. At the moment, tightly
	 * optimised loops exist for exactly one or two channels.
	 */
	ASSERT(n_channels <= 2);

	sampptr = allocate_sample_buffer(n_channels, size);

	if (!sampptr)
		return 0;

	dumb_silence(sampptr[0], n_channels * size);

	size = duh_sigrenderer_generate_samples(sigrenderer, volume, delta, size, sampptr);

	if (bits == 16) {
		int signconv = unsign ? 0x8000 : 0x0000;

		for (n = 0; n < size * n_channels; n++) {
			CONVERT16(sampptr[0][n], n, signconv);
		}
	} else {
		char signconv = unsign ? 0x80 : 0x00;

		for (n = 0; n < size * n_channels; n++) {
			CONVERT8(sampptr[0][n], n, signconv);
		}
	}

	destroy_sample_buffer(sampptr);

	return size;
}
コード例 #2
0
ファイル: memory.c プロジェクト: DeadRoolz/jpcsp
JNIEXPORT void JNICALL Java_jpcsp_memory_NativeMemoryUtils_write16(JNIEnv * env, jclass self, jlong memory, jint address, jint value) {
	CONVERT16(value);
	unsigned short *p16 = (void *) memory + (address & ~1);
	*p16 = (unsigned short) value;
}
コード例 #3
0
ファイル: memory.c プロジェクト: DeadRoolz/jpcsp
JNIEXPORT jint JNICALL Java_jpcsp_memory_NativeMemoryUtils_read16(JNIEnv * env, jclass self, jlong memory, jint address) {
	unsigned short *p16 = (void *) memory + (address & ~1);
	unsigned short value = *p16;
	CONVERT16(value);
	return value;
}