/**
* Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
*/
void
llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
const struct pipe_framebuffer_state *fb)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
boolean changed = !util_framebuffer_state_equal(&lp->framebuffer, fb);
assert(fb->width <= LP_MAX_WIDTH);
assert(fb->height <= LP_MAX_HEIGHT);
if (changed) {
util_copy_framebuffer_state(&lp->framebuffer, fb);
if (LP_PERF & PERF_NO_DEPTH) {
pipe_surface_reference(&lp->framebuffer.zsbuf, NULL);
}
/* Tell draw module how deep the Z/depth buffer is */
if (lp->framebuffer.zsbuf) {
int depth_bits;
double mrd;
depth_bits = util_format_get_component_bits(lp->framebuffer.zsbuf->format,
UTIL_FORMAT_COLORSPACE_ZS,
0);
if (depth_bits > 16) {
mrd = 0.0000001;
}
else {
mrd = 0.00002;
}
lp->mrd = mrd;
draw_set_mrd(lp->draw, mrd);
}
lp_setup_bind_framebuffer( lp->setup, &lp->framebuffer );
lp->dirty |= LP_NEW_FRAMEBUFFER;
}
}
/**
* Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
*/
void
llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
const struct pipe_framebuffer_state *fb)
{
struct llvmpipe_context *lp = llvmpipe_context(pipe);
boolean changed = !util_framebuffer_state_equal(&lp->framebuffer, fb);
assert(fb->width <= LP_MAX_WIDTH);
assert(fb->height <= LP_MAX_HEIGHT);
if (changed) {
util_copy_framebuffer_state(&lp->framebuffer, fb);
if (LP_PERF & PERF_NO_DEPTH) {
pipe_surface_reference(&lp->framebuffer.zsbuf, NULL);
}
/* Tell draw module how deep the Z/depth buffer is.
*
* If no depth buffer is bound, send the utility function the default
* format for no bound depth (PIPE_FORMAT_NONE).
*
* FIXME: mrd constant isn't right should use a value derived from
* current primitive not a constant (for float depth buffers)
*/
lp->mrd = util_get_depth_format_mrd((lp->framebuffer.zsbuf) ?
lp->framebuffer.zsbuf->format : PIPE_FORMAT_NONE);
draw_set_mrd(lp->draw, lp->mrd);
lp_setup_bind_framebuffer( lp->setup, &lp->framebuffer );
lp->dirty |= LP_NEW_FRAMEBUFFER;
}
}
