static long
conv_rgbaF_rgb8 (unsigned char *src, unsigned char *dst, long samples)
{
long n = samples;
while (n--)
{
register float f = (*(float *) src);
*(unsigned char *) dst = table_F_8[gggl_float_to_index16 (f)];
src += 4;
dst += 1;
f = (*(float *) src);
*(unsigned char *) dst = table_F_8[gggl_float_to_index16 (f)];
src += 4;
dst += 1;
f = (*(float *) src);
*(unsigned char *) dst = table_F_8[gggl_float_to_index16 (f)];
src += 4;
dst += 1;
src += 4;
}
return samples;
}
static long
conv_rgbAF_lrgba8 (unsigned char *srcc,
unsigned char *dstc,
long samples)
{
float *src = (void *) srcc;
unsigned char *dst = (void *) dstc;
long n = samples;
while (n--)
{
float alpha = src[3];
float recip = (1.0/alpha);
if (alpha < BABL_ALPHA_THRESHOLD)
{
dst[0] = dst[1] = dst[2] = dst[3] = 0;
}
else
{
dst[0] = table_F_8[gggl_float_to_index16 (src[0] * recip)];
dst[1] = table_F_8[gggl_float_to_index16 (src[1] * recip)];
dst[2] = table_F_8[gggl_float_to_index16 (src[2] * recip)];
dst[3] = table_F_8[gggl_float_to_index16 (alpha)];
}
src += 4;
dst += 4;
}
return samples;
}
static long
conv_F_16 (unsigned char *src, unsigned char *dst, long samples)
{
long n = samples;
if (!table_inited)
table_init ();
while (n--)
{
register float f = (*(float *) src);
*(unsigned short *) dst = table_F_16[gggl_float_to_index16 (f)];
dst += 2;
src += 4;
}
return samples;
}
