ggi_accel_t *GGI_kgi_map_accelerator(ggi_visual_t vis, kgi_u_t resource,
kgi_u_t min, kgi_u_t max,
kgi_u_t buffers, kgi_u_t priority)
{
ggi_accel_t *accel;
kgi_error_t err;
err = kgiSetupMmapAccel(&KGI_CTX(vis), resource,
min, max, buffers, priority);
DPRINT("setup err: %d\n", err);
if (err != KGI_EOK)
return NULL;
accel = malloc(sizeof(ggi_accel_t));
if (! accel)
return NULL;
accel->u32.current = 0;
accel->u32.buffer = mmap(0, (0x1000 << max) * buffers,
PROT_READ | PROT_WRITE, MAP_SHARED,
KGI_CTX(vis).mapper.fd, 0);
DPRINT("mmap buffer: %d\n", accel->u32.buffer);
if (accel->u32.buffer == MAP_FAILED) {
free(accel);
return NULL;
}
return accel;
}
int
GGI_kgi_setPalette(struct ggi_visual *vis, size_t start, size_t len, const ggi_color *colormap)
{
kgic_ilut_set_request_t ilut;
size_t nocols = 1 << GT_DEPTH(LIBGGI_GT(vis));
APP_ASSERT(colormap != NULL,
"GGI_kgi_setPalette() - colormap == NULL");
DPRINT_COLOR("display-kgi: SetPalVec(%d,%d)\n", start, len);
if (start == (size_t)GGI_PALETTE_DONTCARE) {
start = 0;
}
if ((start < 0) || (len < 0) || (start+len > nocols)) {
return GGI_ENOSPACE;
}
memcpy(LIBGGI_PAL(vis)->clut.data, colormap, len*sizeof(ggi_color));
ilut.image = 0;
ilut.resource = 0;
ilut.lut = 0;
ilut.idx = start;
ilut.cnt = len;
ilut.am = KGI_AM_COLORS;
ilut.data = (kgi_u16_t *)KGI_PRIV(vis);
for (start = 0; len > 0; start++, colormap++, len--) {
ilut.data[start*3] = colormap->r;
ilut.data[start*3 + 1] = colormap->g;
ilut.data[start*3 + 2] = colormap->b;
}
if(kgiSetIlut(&KGI_CTX(vis), &ilut) != KGI_EOK) {
DPRINT_COLOR("display-kgi: PUTCMAP failed.");
return -1;
}
return 0;
}