/**************************************************************************
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*
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* Copyright 2007 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/* Authors: Keith Whitwell <keithw@vmware.com>
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*/
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#include "pipe/p_state.h"
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#include "util/u_inlines.h"
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#include "util/u_framebuffer.h"
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#include "util/u_surface.h"
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#include "lp_context.h"
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#include "lp_scene.h"
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#include "lp_state.h"
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#include "lp_setup.h"
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#include "draw/draw_context.h"
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#include "util/u_format.h"
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/**
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* Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
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*/
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void
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llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
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const struct pipe_framebuffer_state *fb)
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{
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struct llvmpipe_context *lp = llvmpipe_context(pipe);
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boolean changed = !util_framebuffer_state_equal(&lp->framebuffer, fb);
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unsigned i;
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assert(fb->width <= LP_MAX_WIDTH);
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assert(fb->height <= LP_MAX_HEIGHT);
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if (changed) {
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/*
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* If no depth buffer is bound, send the utility function the default
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* format for no bound depth (PIPE_FORMAT_NONE).
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*/
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enum pipe_format depth_format = fb->zsbuf ?
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fb->zsbuf->format : PIPE_FORMAT_NONE;
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const struct util_format_description *depth_desc =
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util_format_description(depth_format);
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if (lp->framebuffer.zsbuf && lp->framebuffer.zsbuf->context != pipe) {
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debug_printf("Illegal setting of fb state with zsbuf created in "
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"another context\n");
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}
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for (i = 0; i < fb->nr_cbufs; i++) {
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if (lp->framebuffer.cbufs[i] &&
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lp->framebuffer.cbufs[i]->context != pipe) {
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debug_printf("Illegal setting of fb state with cbuf %d created in "
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"another context\n", i);
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}
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}
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util_copy_framebuffer_state(&lp->framebuffer, fb);
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if (LP_PERF & PERF_NO_DEPTH) {
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pipe_surface_reference(&lp->framebuffer.zsbuf, NULL);
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}
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/*
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* Calculate the floating point depth sense and Minimum Resolvable Depth
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* value for the llvmpipe module. This is separate from the draw module.
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*/
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lp->floating_point_depth =
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(util_get_depth_format_type(depth_desc) == UTIL_FORMAT_TYPE_FLOAT);
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lp->mrd = util_get_depth_format_mrd(depth_desc);
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/* Tell the draw module how deep the Z/depth buffer is. */
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draw_set_zs_format(lp->draw, depth_format);
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lp_setup_bind_framebuffer( lp->setup, &lp->framebuffer );
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lp->dirty |= LP_NEW_FRAMEBUFFER;
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}
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}
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