src/mesa/state_tracker/st_cb_condrender.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 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 THE AUTHORS 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 /**
  30  * glBegin/EndCondtionalRender functions
  31  *
  32  * \author Brian Paul
  33  */
  34
  35
  36 #include "main/imports.h"
  37 #include "main/context.h"
  38
  39 #include "pipe/p_context.h"
  40 #include "pipe/p_defines.h"
  41 #include "st_context.h"
  42 #include "st_cb_queryobj.h"
  43 #include "st_cb_condrender.h"
  44
  45
  46 /**
  47  * Called via ctx->Driver.BeginConditionalRender()
  48  */
  49 static void
  50 st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q,
  51                           GLenum mode)
  52 {
  53    struct st_query_object *stq = st_query_object(q);
  54    struct st_context *st = st_context(ctx);
  55    struct pipe_context *pipe = st->pipe;
  56    uint m;
  57
  58    switch (mode) {
  59    case GL_QUERY_WAIT:
  60       m = PIPE_RENDER_COND_WAIT;
  61       break;
  62    case GL_QUERY_NO_WAIT:
  63       m = PIPE_RENDER_COND_NO_WAIT;
  64       break;
  65    case GL_QUERY_BY_REGION_WAIT:
  66       m = PIPE_RENDER_COND_BY_REGION_WAIT;
  67       break;
  68    case GL_QUERY_BY_REGION_NO_WAIT:
  69       m = PIPE_RENDER_COND_BY_REGION_NO_WAIT;
  70       break;
  71    default:
  72       assert(0 && "bad mode in st_BeginConditionalRender");
  73       m = PIPE_RENDER_COND_WAIT;
  74    }
  75
  76    st->render_condition = stq->pq;
  77    st->condition_mode = m;
  78
  79    pipe->render_condition(pipe, stq->pq, m);
  80 }
  81
  82
  83 /**
  84  * Called via ctx->Driver.BeginConditionalRender()
  85  */
  86 static void
  87 st_EndConditionalRender(struct gl_context *ctx, struct gl_query_object *q)
  88 {
  89    struct st_context *st = st_context(ctx);
  90    struct pipe_context *pipe = st->pipe;
  91    (void) q;
  92
  93    pipe->render_condition(pipe, NULL, 0);
  94    st->render_condition = NULL;
  95 }
  96
  97
  98
  99 void st_init_cond_render_functions(struct dd_function_table *functions)
 100 {
 101    functions->BeginConditionalRender = st_BeginConditionalRender;
 102    functions->EndConditionalRender = st_EndConditionalRender;
 103 }