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/**************************************************************************
*
* Copyright 2007 VMware, Inc.
* 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 VMWARE 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 <keithw@vmware.com>
*/
#include "pipe/p_state.h"
#include "util/u_inlines.h"
#include "util/u_framebuffer.h"
#include "util/u_surface.h"
#include "lp_context.h"
#include "lp_scene.h"
#include "lp_state.h"
#include "lp_setup.h"
#include "draw/draw_context.h"
#include "util/format/u_format.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);
boolean changed = !util_framebuffer_state_equal(&lp->framebuffer, fb);
unsigned i;
assert(fb->width <= LP_MAX_WIDTH);
assert(fb->height <= LP_MAX_HEIGHT);
if (changed) {
/*
* If no depth buffer is bound, send the utility function the default
* format for no bound depth (PIPE_FORMAT_NONE).
*/
enum pipe_format depth_format = fb->zsbuf ?
fb->zsbuf->format : PIPE_FORMAT_NONE;
const struct util_format_description *depth_desc =
util_format_description(depth_format);
if (lp->framebuffer.zsbuf && lp->framebuffer.zsbuf->context != pipe) {
debug_printf("Illegal setting of fb state with zsbuf created in "
"another context\n");
}
for (i = 0; i < fb->nr_cbufs; i++) {
if (lp->framebuffer.cbufs[i] &&
lp->framebuffer.cbufs[i]->context != pipe) {
debug_printf("Illegal setting of fb state with cbuf %d created in "
"another context\n", i);
}
}
util_copy_framebuffer_state(&lp->framebuffer, fb);
if (LP_PERF & PERF_NO_DEPTH) {
pipe_surface_reference(&lp->framebuffer.zsbuf, NULL);
}
/*
* Calculate the floating point depth sense and Minimum Resolvable Depth
* value for the llvmpipe module. This is separate from the draw module.
*/
lp->floating_point_depth =
(util_get_depth_format_type(depth_desc) == UTIL_FORMAT_TYPE_FLOAT);
lp->mrd = util_get_depth_format_mrd(depth_desc);
/* Tell the draw module how deep the Z/depth buffer is. */
draw_set_zs_format(lp->draw, depth_format);
lp_setup_bind_framebuffer( lp->setup, &lp->framebuffer );
lp->dirty |= LP_NEW_FRAMEBUFFER;
}
}
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