lp_flush.c revision 4a49301e 
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
42void
43llvmpipe_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
101