src/mesa/state_tracker/st_cb_flush.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   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 VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  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  /*
  29   * Authors:
  30   *   Keith Whitwell <keithw@vmware.com>
  31   *   Brian Paul
  32   */
  33
  34 #include "main/glheader.h"
  35 #include "main/macros.h"
  36 #include "main/context.h"
  37 #include "st_context.h"
  38 #include "st_cb_bitmap.h"
  39 #include "st_cb_flush.h"
  40 #include "st_cb_clear.h"
  41 #include "st_cb_fbo.h"
  42 #include "st_context.h"
  43 #include "st_manager.h"
  44 #include "pipe/p_context.h"
  45 #include "pipe/p_defines.h"
  46 #include "pipe/p_screen.h"
  47 #include "util/u_gen_mipmap.h"
  48
  49
  50 void
  51 st_flush(struct st_context *st,
  52          struct pipe_fence_handle **fence,
  53          unsigned flags)
  54 {
  55    st_flush_bitmap_cache(st);
  56
  57    /* We want to call this function periodically.
  58     * Typically, it has nothing to do so it shouldn't be expensive.
  59     */
  60    st_context_free_zombie_objects(st);
  61
  62    st->pipe->flush(st->pipe, fence, flags);
  63 }
  64
  65
  66 /**
  67  * Flush, and wait for completion.
  68  */
  69 void
  70 st_finish(struct st_context *st)
  71 {
  72    struct pipe_fence_handle *fence = NULL;
  73
  74    st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
  75
  76    if (fence) {
  77       st->pipe->screen->fence_finish(st->pipe->screen, NULL, fence,
  78                                      PIPE_TIMEOUT_INFINITE);
  79       st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
  80    }
  81
  82    st_manager_flush_swapbuffers();
  83 }
  84
  85
  86
  87 /**
  88  * Called via ctx->Driver.Flush()
  89  */
  90 static void
  91 st_glFlush(struct gl_context *ctx)
  92 {
  93    struct st_context *st = st_context(ctx);
  94
  95    /* Don't call st_finish() here.  It is not the state tracker's
  96     * responsibilty to inject sleeps in the hope of avoiding buffer
  97     * synchronization issues.  Calling finish() here will just hide
  98     * problems that need to be fixed elsewhere.
  99     */
 100    st_flush(st, NULL, 0);
 101
 102    st_manager_flush_frontbuffer(st);
 103 }
 104
 105
 106 /**
 107  * Called via ctx->Driver.Finish()
 108  */
 109 static void
 110 st_glFinish(struct gl_context *ctx)
 111 {
 112    struct st_context *st = st_context(ctx);
 113
 114    st_finish(st);
 115
 116    st_manager_flush_frontbuffer(st);
 117 }
 118
 119
 120 static GLenum
 121 gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)
 122 {
 123    switch (status) {
 124    case PIPE_NO_RESET:
 125       return GL_NO_ERROR;
 126    case PIPE_GUILTY_CONTEXT_RESET:
 127       return GL_GUILTY_CONTEXT_RESET_ARB;
 128    case PIPE_INNOCENT_CONTEXT_RESET:
 129       return GL_INNOCENT_CONTEXT_RESET_ARB;
 130    case PIPE_UNKNOWN_CONTEXT_RESET:
 131       return GL_UNKNOWN_CONTEXT_RESET_ARB;
 132    default:
 133       assert(0);
 134       return GL_NO_ERROR;
 135    }
 136 }
 137
 138
 139 static void
 140 st_device_reset_callback(void *data, enum pipe_reset_status status)
 141 {
 142    struct st_context *st = data;
 143
 144    assert(status != PIPE_NO_RESET);
 145
 146    st->reset_status = status;
 147    _mesa_set_context_lost_dispatch(st->ctx);
 148 }
 149
 150
 151 /**
 152  * Query information about GPU resets observed by this context
 153  *
 154  * Called via \c dd_function_table::GetGraphicsResetStatus.
 155  */
 156 static GLenum
 157 st_get_graphics_reset_status(struct gl_context *ctx)
 158 {
 159    struct st_context *st = st_context(ctx);
 160    enum pipe_reset_status status;
 161
 162    if (st->reset_status != PIPE_NO_RESET) {
 163       status = st->reset_status;
 164       st->reset_status = PIPE_NO_RESET;
 165    } else {
 166       status = st->pipe->get_device_reset_status(st->pipe);
 167       if (status != PIPE_NO_RESET)
 168          st_device_reset_callback(st, status);
 169    }
 170
 171    return gl_reset_status_from_pipe_reset_status(status);
 172 }
 173
 174
 175 void
 176 st_install_device_reset_callback(struct st_context *st)
 177 {
 178    if (st->pipe->set_device_reset_callback) {
 179       struct pipe_device_reset_callback cb;
 180       cb.reset = st_device_reset_callback;
 181       cb.data = st;
 182       st->pipe->set_device_reset_callback(st->pipe, &cb);
 183    }
 184 }
 185
 186
 187 void
 188 st_init_flush_functions(struct pipe_screen *screen,
 189                         struct dd_function_table *functions)
 190 {
 191    functions->Flush = st_glFlush;
 192    functions->Finish = st_glFinish;
 193
 194    if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
 195       functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
 196 }