static void update_tile_projections(void)
{
GLint *viewports;
int i;
icetGetIntegerv(ICET_NUM_TILES, &num_tiles);
free(tile_projections);
tile_projections = malloc(num_tiles*16*sizeof(GLdouble));
viewports = icetUnsafeStateGet(ICET_TILE_VIEWPORTS);
for (i = 0; i < num_tiles; i++) {
icetGetViewportProject(viewports[i*4+0], viewports[i*4+1],
viewports[i*4+2], viewports[i*4+3],
tile_projections + 16*i);
}
}
static void update_tile_projections(void)
{
IceTInt num_tiles;
const IceTInt *viewports;
IceTDouble *tile_projections;
IceTInt tile_idx;
if ( icetStateGetTime(ICET_TILE_VIEWPORTS)
< icetStateGetTime(ICET_TILE_PROJECTIONS) ) {
/* Projections already up to date. */
return;
}
icetGetIntegerv(ICET_NUM_TILES, &num_tiles);
tile_projections = icetStateAllocateDouble(ICET_TILE_PROJECTIONS,
num_tiles*16);
viewports = icetUnsafeStateGetInteger(ICET_TILE_VIEWPORTS);
for (tile_idx = 0; tile_idx < num_tiles; tile_idx++) {
icetGetViewportProject(viewports[tile_idx*4+0], viewports[tile_idx*4+1],
viewports[tile_idx*4+2], viewports[tile_idx*4+3],
tile_projections + 16*tile_idx);
}
}