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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/* Authors: Keith Whitwell <keith@tungstengraphics.com>
*/
#include "lp_context.h"
#include "lp_state.h"
#include "lp_surface.h"
#include "lp_setup.h"
#include "draw/draw_context.h"
/**
* 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);
uint i;
boolean dirty = FALSE;
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
if (lp->framebuffer.cbufs[i] != fb->cbufs[i]) {
pipe_surface_reference(&lp->framebuffer.cbufs[i], fb->cbufs[i]);
dirty = TRUE;
}
}
if (lp->framebuffer.nr_cbufs != fb->nr_cbufs) {
dirty = TRUE;
lp->framebuffer.nr_cbufs = fb->nr_cbufs;
}
/* zbuf changing? */
if (lp->framebuffer.zsbuf != fb->zsbuf) {
dirty = TRUE;
/* assign new */
pipe_surface_reference(&lp->framebuffer.zsbuf, fb->zsbuf);
/* Tell draw module how deep the Z/depth buffer is */
if (lp->framebuffer.zsbuf) {
int depth_bits;
double mrd;
depth_bits = pf_get_component_bits(lp->framebuffer.zsbuf->format,
PIPE_FORMAT_COMP_Z);
if (depth_bits > 16) {
mrd = 0.0000001;
}
else {
mrd = 0.00002;
}
draw_set_mrd(lp->draw, mrd);
}
}
if (dirty) {
lp_setup_bind_framebuffer( lp->setup, fb );
lp->dirty |= LP_NEW_FRAMEBUFFER;
}
}
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