| /************************************************************************** |
| * |
| * 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 "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/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); |
| |
| 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; |
| } |
| } |