src/mesa/pipe/softpipe/sp_state_surface.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29  */
  30 #include "p_inlines.h"
  31
  32 #include "sp_context.h"
  33 #include "sp_state.h"
  34 #include "sp_surface.h"
  35 #include "sp_tile_cache.h"
  36
  37
  38 /**
  39  * XXX this might get moved someday
  40  * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
  41  * Here, we map the surfaces and update the tile cache to point to the new
  42  * surfaces.
  43  */
  44 void
  45 softpipe_set_framebuffer_state(struct pipe_context *pipe,
  46                                const struct pipe_framebuffer_state *fb)
  47 {
  48    struct softpipe_context *sp = softpipe_context(pipe);
  49    struct pipe_surface *ps;
  50    uint i;
  51
  52    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  53       /* check if changing cbuf */
  54       if (sp->framebuffer.cbufs[i] != fb->cbufs[i]) {
  55          /* flush old */
  56          sp_flush_tile_cache(sp, sp->cbuf_cache[i]);
  57          /* unmap old */
  58          ps = sp->framebuffer.cbufs[i];
  59          if (ps && ps->map)
  60             pipe_surface_unmap(ps);
  61          /* map new */
  62          ps = fb->cbufs[i];
  63          if (ps)
  64             pipe_surface_map(ps);
  65          /* assign new */
  66          sp->framebuffer.cbufs[i] = fb->cbufs[i];
  67
  68          /* update cache */
  69          sp_tile_cache_set_surface(sp->cbuf_cache[i], ps);
  70       }
  71    }
  72
  73    sp->framebuffer.num_cbufs = fb->num_cbufs;
  74
  75    /* zbuf changing? */
  76    if (sp->framebuffer.zbuf != fb->zbuf) {
  77       /* flush old */
  78       sp_flush_tile_cache(sp, sp->zbuf_cache);
  79       /* unmap old */
  80       ps = sp->framebuffer.zbuf;
  81       if (ps && ps->map)
  82          pipe_surface_unmap(ps);
  83       if (sp->framebuffer.sbuf == sp->framebuffer.zbuf) {
  84          /* combined z/stencil */
  85          sp->framebuffer.sbuf = NULL;
  86       }
  87       /* map new */
  88       ps = fb->zbuf;
  89       if (ps)
  90          pipe_surface_map(ps);
  91       /* assign new */
  92       sp->framebuffer.zbuf = fb->zbuf;
  93
  94       /* update cache */
  95       sp_tile_cache_set_surface(sp->zbuf_cache, ps);
  96    }
  97
  98    /* XXX combined depth/stencil here */
  99
 100    /* sbuf changing? */
 101    if (sp->framebuffer.sbuf != fb->sbuf) {
 102       /* flush old */
 103       sp_flush_tile_cache(sp, sp->sbuf_cache_sep);
 104       /* unmap old */
 105       ps = sp->framebuffer.sbuf;
 106       if (ps && ps->map)
 107          pipe_surface_unmap(ps);
 108       /* map new */
 109       ps = fb->sbuf;
 110       if (ps && fb->sbuf != fb->zbuf)
 111          pipe_surface_map(ps);
 112       /* assign new */
 113       sp->framebuffer.sbuf = fb->sbuf;
 114
 115       /* update cache */
 116       if (fb->sbuf != fb->zbuf) {
 117          /* separate stencil buf */
 118          sp->sbuf_cache = sp->sbuf_cache_sep;
 119          sp_tile_cache_set_surface(sp->sbuf_cache, ps);
 120       }
 121       else {
 122          /* combined depth/stencil */
 123          sp->sbuf_cache = sp->zbuf_cache;
 124          sp_tile_cache_set_surface(sp->sbuf_cache, ps);
 125       }
 126    }
 127
 128    sp->dirty |= SP_NEW_FRAMEBUFFER;
 129 }
 130
 131
 132
 133
 134 void
 135 softpipe_set_clear_color_state(struct pipe_context *pipe,
 136                                const struct pipe_clear_color_state *clear)
 137 {
 138    struct softpipe_context *softpipe = softpipe_context(pipe);
 139
 140    softpipe->clear_color = *clear; /* struct copy */
 141 }