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
  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  /*
  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    /* We want to call this function periodically.
  56     * Typically, it has nothing to do so it shouldn't be expensive.
  57     */
  58    st_context_free_zombie_objects(st);
  59
  60    st->pipe->flush(st->pipe, fence, flags);
  61 }
  62
  63
  64 /**
  65  * Flush, and wait for completion.
  66  */
  67 void
  68 st_finish(struct st_context *st)
  69 {
  70    struct pipe_fence_handle *fence = NULL;
  71
  72    st_flush_bitmap_cache(st);
  73    st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
  74
  75    if (fence) {
  76       st->pipe->screen->fence_finish(st->pipe->screen, NULL, fence,
  77                                      PIPE_TIMEOUT_INFINITE);
  78       st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
  79    }
  80
  81    st_manager_flush_swapbuffers();
  82 }
  83
  84
  85
  86 /**
  87  * Called via ctx->Driver.Flush()
  88  */
  89 static void
  90 st_glFlush(struct gl_context *ctx)
  91 {
  92    struct st_context *st = st_context(ctx);
  93
  94    st_flush_bitmap_cache(st);
  95
  96    /* Don't call st_finish() here.  It is not the state tracker's
  97     * responsibilty to inject sleeps in the hope of avoiding buffer
  98     * synchronization issues.  Calling finish() here will just hide
  99     * problems that need to be fixed elsewhere.
 100     */
 101    st_flush(st, NULL, 0);
 102
 103    st_manager_flush_frontbuffer(st);
 104 }
 105
 106
 107 /**
 108  * Called via ctx->Driver.Finish()
 109  */
 110 static void
 111 st_glFinish(struct gl_context *ctx)
 112 {
 113    struct st_context *st = st_context(ctx);
 114
 115    st_finish(st);
 116
 117    st_manager_flush_frontbuffer(st);
 118 }
 119
 120
 121 static GLenum
 122 gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)
 123 {
 124    switch (status) {
 125    case PIPE_NO_RESET:
 126       return GL_NO_ERROR;
 127    case PIPE_GUILTY_CONTEXT_RESET:
 128       return GL_GUILTY_CONTEXT_RESET_ARB;
 129    case PIPE_INNOCENT_CONTEXT_RESET:
 130       return GL_INNOCENT_CONTEXT_RESET_ARB;
 131    case PIPE_UNKNOWN_CONTEXT_RESET:
 132       return GL_UNKNOWN_CONTEXT_RESET_ARB;
 133    default:
 134       assert(0);
 135       return GL_NO_ERROR;
 136    }
 137 }
 138
 139
 140 static void
 141 st_device_reset_callback(void *data, enum pipe_reset_status status)
 142 {
 143    struct st_context *st = data;
 144
 145    assert(status != PIPE_NO_RESET);
 146
 147    st->reset_status = status;
 148    _mesa_set_context_lost_dispatch(st->ctx);
 149 }
 150
 151
 152 /**
 153  * Query information about GPU resets observed by this context
 154  *
 155  * Called via \c dd_function_table::GetGraphicsResetStatus.
 156  */
 157 static GLenum
 158 st_get_graphics_reset_status(struct gl_context *ctx)
 159 {
 160    struct st_context *st = st_context(ctx);
 161    enum pipe_reset_status status;
 162
 163    if (st->reset_status != PIPE_NO_RESET) {
 164       status = st->reset_status;
 165       st->reset_status = PIPE_NO_RESET;
 166    } else {
 167       status = st->pipe->get_device_reset_status(st->pipe);
 168       if (status != PIPE_NO_RESET)
 169          st_device_reset_callback(st, status);
 170    }
 171
 172    return gl_reset_status_from_pipe_reset_status(status);
 173 }
 174
 175
 176 void
 177 st_install_device_reset_callback(struct st_context *st)
 178 {
 179    if (st->pipe->set_device_reset_callback) {
 180       struct pipe_device_reset_callback cb;
 181       cb.reset = st_device_reset_callback;
 182       cb.data = st;
 183       st->pipe->set_device_reset_callback(st->pipe, &cb);
 184    }
 185 }
 186
 187
 188 void
 189 st_init_flush_functions(struct pipe_screen *screen,
 190                         struct dd_function_table *functions)
 191 {
 192    functions->Flush = st_glFlush;
 193    functions->Finish = st_glFinish;
 194
 195    if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
 196       functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
 197 }