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 "sp_context.h"
  31 #include "sp_state.h"
  32 #include "sp_surface.h"
  33 #include "sp_tile_cache.h"
  34
  35
  36 /**
  37  * XXX this might get moved someday
  38  * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
  39  * Here, we map the surfaces and update the tile cache to point to the new
  40  * surfaces.
  41  */
  42 void
  43 softpipe_set_framebuffer_state(struct pipe_context *pipe,
  44                                const struct pipe_framebuffer_state *fb)
  45 {
  46    struct softpipe_context *sp = softpipe_context(pipe);
  47    struct pipe_surface *ps;
  48    uint i;
  49
  50    for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
  51       /* check if changing cbuf */
  52       if (sp->framebuffer.cbufs[i] != fb->cbufs[i]) {
  53          /* flush old */
  54          sp_flush_tile_cache(sp, sp->cbuf_cache[i]);
  55          /* unmap old */
  56          ps = sp->framebuffer.cbufs[i];
  57          if (ps && ps->region)
  58             pipe->region_unmap(pipe, ps->region);
  59          /* map new */
  60          ps = fb->cbufs[i];
  61          if (ps)
  62             pipe->region_map(pipe, ps->region);
  63          /* assign new */
  64          sp->framebuffer.cbufs[i] = fb->cbufs[i];
  65
  66          /* update cache */
  67          sp_tile_cache_set_surface(sp->cbuf_cache[i], ps);
  68       }
  69    }
  70
  71    sp->framebuffer.num_cbufs = fb->num_cbufs;
  72
  73    /* zbuf changing? */
  74    if (sp->framebuffer.zbuf != fb->zbuf) {
  75       /* flush old */
  76       sp_flush_tile_cache(sp, sp->zbuf_cache);
  77       /* unmap old */
  78       ps = sp->framebuffer.zbuf;
  79       if (ps && ps->region)
  80          pipe->region_unmap(pipe, ps->region);
  81       if (sp->framebuffer.sbuf == sp->framebuffer.zbuf) {
  82          /* combined z/stencil */
  83          sp->framebuffer.sbuf = NULL;
  84       }
  85       /* map new */
  86       ps = fb->zbuf;
  87       if (ps)
  88          pipe->region_map(pipe, ps->region);
  89       /* assign new */
  90       sp->framebuffer.zbuf = fb->zbuf;
  91
  92       /* update cache */
  93       sp_tile_cache_set_surface(sp->zbuf_cache, ps);
  94    }
  95
  96    /* XXX combined depth/stencil here */
  97
  98    /* sbuf changing? */
  99    if (sp->framebuffer.sbuf != fb->sbuf) {
 100       /* flush old */
 101       sp_flush_tile_cache(sp, sp->sbuf_cache_sep);
 102       /* unmap old */
 103       ps = sp->framebuffer.sbuf;
 104       if (ps && ps->region)
 105          pipe->region_unmap(pipe, ps->region);
 106       /* map new */
 107       ps = fb->sbuf;
 108       if (ps && fb->sbuf != fb->zbuf)
 109          pipe->region_map(pipe, ps->region);
 110       /* assign new */
 111       sp->framebuffer.sbuf = fb->sbuf;
 112
 113       /* update cache */
 114       if (fb->sbuf != fb->zbuf) {
 115          /* separate stencil buf */
 116          sp->sbuf_cache = sp->sbuf_cache_sep;
 117          sp_tile_cache_set_surface(sp->sbuf_cache, ps);
 118       }
 119       else {
 120          /* combined depth/stencil */
 121          sp->sbuf_cache = sp->zbuf_cache;
 122          sp_tile_cache_set_surface(sp->sbuf_cache, ps);
 123       }
 124    }
 125
 126    sp->dirty |= SP_NEW_FRAMEBUFFER;
 127 }
 128
 129
 130
 131
 132 void
 133 softpipe_set_clear_color_state(struct pipe_context *pipe,
 134                                const struct pipe_clear_color_state *clear)
 135 {
 136    struct softpipe_context *softpipe = softpipe_context(pipe);
 137
 138    softpipe->clear_color = *clear; /* struct copy */
 139 }