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