/* Convert an RGB palette to YCbCr. */
static void video_palette_to_ycbcr(const palette_t *p,
video_ycbcr_palette_t* ycbcr)
{
unsigned int i;
for (i = 0; i < p->num_entries; i++) {
video_convert_rgb_to_ycbcr(&p->entries[i], &ycbcr->entries[i]);
}
}
static void video_convert_rgb_to_renderer(const palette_entry_t *src,
video_ycbcr_color_t *dst, int video)
{
/* DBG(("video_convert_rgb_to_renderer")); */
if (video) {
/* PAL */
video_convert_rgb_to_ycbcr(src, dst);
} else {
/* NTSC */
video_convert_rgb_to_yiq(src, dst);
}
}
/* Convert the internal videochip palette to YCbCr. */
static void video_cbm_palette_to_ycbcr(const video_cbm_palette_t *p, video_ycbcr_palette_t* ycbcr)
{
unsigned int i;
if (p->type == CBM_PALETTE_RGB) {
/* special case for handling chips that output RGB (such as the VDC),
admittedly slightly ugly but simple and effective :) */
palette_entry_t src;
for (i = 0; i < p->num_entries; i++) {
src.red = (BYTE)p->entries[i].luminance;
src.green = (BYTE)p->entries[i].angle;
src.blue = p->entries[i].direction;
video_convert_rgb_to_ycbcr(&src, &ycbcr->entries[i]);
}
} else {
for (i = 0; i < p->num_entries; i++) {
video_convert_cbm_to_ycbcr(&p->entries[i], p->saturation, p->phase, &ycbcr->entries[i]);
}
}
}
