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_manager.h"
  43 #include "pipe/p_context.h"
  44 #include "pipe/p_defines.h"
  45 #include "pipe/p_screen.h"
  46 #include "util/u_gen_mipmap.h"
  47
  48
  49 void st_flush(struct st_context *st,
  50               struct pipe_fence_handle **fence,
  51               unsigned flags)
  52 {
  53    FLUSH_VERTICES(st->ctx, 0);
  54    FLUSH_CURRENT(st->ctx, 0);
  55
  56    st_flush_bitmap_cache(st);
  57
  58    st->pipe->flush(st->pipe, fence, flags);
  59 }
  60
  61
  62 /**
  63  * Flush, and wait for completion.
  64  */
  65 void st_finish( struct st_context *st )
  66 {
  67    struct pipe_fence_handle *fence = NULL;
  68
  69    st_flush(st, &fence, 0);
  70
  71    if(fence) {
  72       st->pipe->screen->fence_finish(st->pipe->screen, NULL, fence,
  73                                      PIPE_TIMEOUT_INFINITE);
  74       st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
  75    }
  76
  77    st_manager_flush_swapbuffers();
  78 }
  79
  80
  81
  82 /**
  83  * Called via ctx->Driver.Flush()
  84  */
  85 static void st_glFlush(struct gl_context *ctx)
  86 {
  87    struct st_context *st = st_context(ctx);
  88
  89    /* Don't call st_finish() here.  It is not the state tracker's
  90     * responsibilty to inject sleeps in the hope of avoiding buffer
  91     * synchronization issues.  Calling finish() here will just hide
  92     * problems that need to be fixed elsewhere.
  93     */
  94    st_flush(st, NULL, 0);
  95
  96    st_manager_flush_frontbuffer(st);
  97 }
  98
  99
 100 /**
 101  * Called via ctx->Driver.Finish()
 102  */
 103 static void st_glFinish(struct gl_context *ctx)
 104 {
 105    struct st_context *st = st_context(ctx);
 106
 107    st_finish(st);
 108
 109    st_manager_flush_frontbuffer(st);
 110 }
 111
 112
 113 static GLenum
 114 gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)
 115 {
 116    switch (status) {
 117    case PIPE_NO_RESET:
 118       return GL_NO_ERROR;
 119    case PIPE_GUILTY_CONTEXT_RESET:
 120       return GL_GUILTY_CONTEXT_RESET_ARB;
 121    case PIPE_INNOCENT_CONTEXT_RESET:
 122       return GL_INNOCENT_CONTEXT_RESET_ARB;
 123    case PIPE_UNKNOWN_CONTEXT_RESET:
 124       return GL_UNKNOWN_CONTEXT_RESET_ARB;
 125    default:
 126       assert(0);
 127       return GL_NO_ERROR;
 128    }
 129 }
 130
 131
 132 /**
 133  * Query information about GPU resets observed by this context
 134  *
 135  * Called via \c dd_function_table::GetGraphicsResetStatus.
 136  */
 137 static GLenum
 138 st_get_graphics_reset_status(struct gl_context *ctx)
 139 {
 140    struct st_context *st = st_context(ctx);
 141    enum pipe_reset_status status;
 142
 143    if (st->reset_status != PIPE_NO_RESET) {
 144       status = st->reset_status;
 145       st->reset_status = PIPE_NO_RESET;
 146    } else {
 147       status = st->pipe->get_device_reset_status(st->pipe);
 148    }
 149
 150    return gl_reset_status_from_pipe_reset_status(status);
 151 }
 152
 153
 154 static void
 155 st_device_reset_callback(void *data, enum pipe_reset_status status)
 156 {
 157    struct st_context *st = data;
 158
 159    assert(status != PIPE_NO_RESET);
 160
 161    st->reset_status = status;
 162    _mesa_set_context_lost_dispatch(st->ctx);
 163 }
 164
 165
 166 void
 167 st_install_device_reset_callback(struct st_context *st)
 168 {
 169    if (st->pipe->set_device_reset_callback) {
 170       struct pipe_device_reset_callback cb;
 171       cb.reset = st_device_reset_callback;
 172       cb.data = st;
 173       st->pipe->set_device_reset_callback(st->pipe, &cb);
 174    }
 175 }
 176
 177
 178 void st_init_flush_functions(struct pipe_screen *screen,
 179                              struct dd_function_table *functions)
 180 {
 181    functions->Flush = st_glFlush;
 182    functions->Finish = st_glFinish;
 183
 184    if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
 185       functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
 186 }