src/gallium/drivers/softpipe/sp_flush.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 /* Author:
  29  *    Keith Whitwell <keith@tungstengraphics.com>
  30  */
  31
  32
  33 #include "pipe/p_defines.h"
  34 #include "draw/draw_context.h"
  35 #include "sp_flush.h"
  36 #include "sp_context.h"
  37 #include "sp_surface.h"
  38 #include "sp_state.h"
  39 #include "sp_tile_cache.h"
  40 #include "sp_tex_tile_cache.h"
  41 #include "sp_winsys.h"
  42
  43
  44 void
  45 softpipe_flush( struct pipe_context *pipe,
  46                 unsigned flags,
  47                 struct pipe_fence_handle **fence )
  48 {
  49    struct softpipe_context *softpipe = softpipe_context(pipe);
  50    uint i;
  51
  52    draw_flush(softpipe->draw);
  53
  54    if (flags & PIPE_FLUSH_TEXTURE_CACHE) {
  55       for (i = 0; i < softpipe->num_textures; i++) {
  56          sp_flush_tex_tile_cache(softpipe->tex_cache[i]);
  57       }
  58       for (i = 0; i < softpipe->num_vertex_textures; i++) {
  59          sp_flush_tex_tile_cache(softpipe->vertex_tex_cache[i]);
  60       }
  61    }
  62
  63    if (flags & PIPE_FLUSH_SWAPBUFFERS) {
  64       /* If this is a swapbuffers, just flush color buffers.
  65        *
  66        * The zbuffer changes are not discarded, but held in the cache
  67        * in the hope that a later clear will wipe them out.
  68        */
  69       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++)
  70          if (softpipe->cbuf_cache[i])
  71             sp_flush_tile_cache(softpipe->cbuf_cache[i]);
  72
  73       /* Need this call for hardware buffers before swapbuffers.
  74        *
  75        * there should probably be another/different flush-type function
  76        * that's called before swapbuffers because we don't always want
  77        * to unmap surfaces when flushing.
  78        */
  79       softpipe_unmap_transfers(softpipe);
  80    }
  81    else if (flags & PIPE_FLUSH_RENDER_CACHE) {
  82       for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++)
  83          if (softpipe->cbuf_cache[i])
  84             sp_flush_tile_cache(softpipe->cbuf_cache[i]);
  85
  86       if (softpipe->zsbuf_cache)
  87          sp_flush_tile_cache(softpipe->zsbuf_cache);
  88
  89       softpipe->dirty_render_cache = FALSE;
  90    }
  91
  92    /* Enable to dump BMPs of the color/depth buffers each frame */
  93 #if 0
  94    if(flags & PIPE_FLUSH_FRAME) {
  95       static unsigned frame_no = 1;
  96       static char filename[256];
  97       util_snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no);
  98       debug_dump_surface_bmp(filename, softpipe->framebuffer.cbufs[0]);
  99       util_snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no);
 100       debug_dump_surface_bmp(filename, softpipe->framebuffer.zsbuf);
 101       ++frame_no;
 102    }
 103 #endif
 104
 105    if (fence)
 106       *fence = NULL;
 107 }
 108