1/**********************************************************
2 * Copyright 2008-2009 VMware, Inc.  All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26#include "pipe/p_defines.h"
27#include "util/u_debug_image.h"
28#include "util/u_string.h"
29#include "svga_screen.h"
30#include "svga_surface.h"
31#include "svga_context.h"
32#include "svga_debug.h"
33
34
35static void svga_flush( struct pipe_context *pipe,
36                        struct pipe_fence_handle **fence,
37                        unsigned flags)
38{
39   struct svga_context *svga = svga_context(pipe);
40
41   /* Emit buffered drawing commands, and any back copies.
42    */
43   svga_surfaces_flush( svga );
44
45   if (flags & PIPE_FLUSH_FENCE_FD)
46      svga->swc->hints |= SVGA_HINT_FLAG_EXPORT_FENCE_FD;
47
48   /* Flush command queue.
49    */
50   svga_context_flush(svga, fence);
51
52   SVGA_DBG(DEBUG_DMA|DEBUG_PERF, "%s fence_ptr %p\n",
53            __FUNCTION__, fence ? *fence : NULL);
54
55   /* Enable to dump BMPs of the color/depth buffers each frame */
56   if (0) {
57      struct pipe_framebuffer_state *fb = &svga->curr.framebuffer;
58      static unsigned frame_no = 1;
59      char filename[256];
60      unsigned i;
61
62      for (i = 0; i < fb->nr_cbufs; i++) {
63         snprintf(filename, sizeof(filename), "cbuf%u_%04u.bmp", i, frame_no);
64         debug_dump_surface_bmp(&svga->pipe, filename, fb->cbufs[i]);
65      }
66
67      if (0 && fb->zsbuf) {
68         snprintf(filename, sizeof(filename), "zsbuf_%04u.bmp", frame_no);
69         debug_dump_surface_bmp(&svga->pipe, filename, fb->zsbuf);
70      }
71
72      ++frame_no;
73   }
74}
75
76
77/**
78 * svga_create_fence_fd
79 *
80 * Wraps a SVGA fence around an imported file descriptor.  This
81 * fd represents a fence from another process/device.  The fence created
82 * here can then be fed into fence_server_sync() so SVGA can synchronize
83 * with an external process
84 */
85static void
86svga_create_fence_fd(struct pipe_context *pipe,
87                     struct pipe_fence_handle **fence,
88                     int fd,
89                     enum pipe_fd_type type)
90{
91   struct svga_winsys_screen *sws = svga_winsys_screen(pipe->screen);
92
93   assert(type == PIPE_FD_TYPE_NATIVE_SYNC);
94   sws->fence_create_fd(sws, fence, fd);
95}
96
97
98/**
99 * svga_fence_server_sync
100 *
101 * This function imports a fence from another process/device into the current
102 * software context so that SVGA can synchronize with it.
103 */
104static void
105svga_fence_server_sync(struct pipe_context *pipe,
106                       struct pipe_fence_handle *fence)
107{
108   struct svga_winsys_screen *sws = svga_winsys_screen(pipe->screen);
109   struct svga_context *svga = svga_context(pipe);
110
111   sws->fence_server_sync(sws, &svga->swc->imported_fence_fd, fence);
112}
113
114
115void svga_init_flush_functions( struct svga_context *svga )
116{
117   svga->pipe.flush = svga_flush;
118   svga->pipe.create_fence_fd = svga_create_fence_fd;
119   svga->pipe.fence_server_sync = svga_fence_server_sync;
120}
121