src/gallium/drivers/llvmpipe/lp_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 "lp_flush.h"
  36 #include "lp_context.h"
  37 #include "lp_surface.h"
  38 #include "lp_state.h"
  39 #include "lp_tile_cache.h"
  40 #include "lp_tex_cache.h"
  41 #include "lp_winsys.h"
  42
  43
  44 void
  45 llvmpipe_flush( struct pipe_context *pipe,
  46                 unsigned flags,
  47                 struct pipe_fence_handle **fence )
  48 {
  49    struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
  50    uint i;
  51
  52    draw_flush(llvmpipe->draw);
  53
  54    if (flags & PIPE_FLUSH_SWAPBUFFERS) {
  55       /* If this is a swapbuffers, just flush color buffers.
  56        *
  57        * The zbuffer changes are not discarded, but held in the cache
  58        * in the hope that a later clear will wipe them out.
  59        */
  60       for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++)
  61          if (llvmpipe->cbuf_cache[i]) {
  62             lp_tile_cache_map_transfers(llvmpipe->cbuf_cache[i]);
  63             lp_flush_tile_cache(llvmpipe->cbuf_cache[i]);
  64          }
  65
  66       /* Need this call for hardware buffers before swapbuffers.
  67        *
  68        * there should probably be another/different flush-type function
  69        * that's called before swapbuffers because we don't always want
  70        * to unmap surfaces when flushing.
  71        */
  72       llvmpipe_unmap_transfers(llvmpipe);
  73    }
  74    else if (flags & PIPE_FLUSH_RENDER_CACHE) {
  75       for (i = 0; i < llvmpipe->framebuffer.nr_cbufs; i++)
  76          if (llvmpipe->cbuf_cache[i]) {
  77             lp_tile_cache_map_transfers(llvmpipe->cbuf_cache[i]);
  78             lp_flush_tile_cache(llvmpipe->cbuf_cache[i]);
  79          }
  80
  81       /* FIXME: untile zsbuf! */
  82
  83       llvmpipe->dirty_render_cache = FALSE;
  84    }
  85
  86    /* Enable to dump BMPs of the color/depth buffers each frame */
  87 #if 0
  88    if(flags & PIPE_FLUSH_FRAME) {
  89       static unsigned frame_no = 1;
  90       static char filename[256];
  91       util_snprintf(filename, sizeof(filename), "cbuf_%u.bmp", frame_no);
  92       debug_dump_surface_bmp(filename, llvmpipe->framebuffer.cbufs[0]);
  93       util_snprintf(filename, sizeof(filename), "zsbuf_%u.bmp", frame_no);
  94       debug_dump_surface_bmp(filename, llvmpipe->framebuffer.zsbuf);
  95       ++frame_no;
  96    }
  97 #endif
  98
  99    if (fence)
 100       *fence = NULL;
 101 }
 102