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      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
     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 /**
     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 #include "st_cb_bitmap.h"
     45 
     46 
     47 /**
     48  * Called via ctx->Driver.BeginConditionalRender()
     49  */
     50 static void
     51 st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q,
     52                           GLenum mode)
     53 {
     54    struct st_query_object *stq = st_query_object(q);
     55    struct st_context *st = st_context(ctx);
     56    struct pipe_context *pipe = st->pipe;
     57    uint m;
     58 
     59    st_flush_bitmap_cache(st);
     60 
     61    switch (mode) {
     62    case GL_QUERY_WAIT:
     63       m = PIPE_RENDER_COND_WAIT;
     64       break;
     65    case GL_QUERY_NO_WAIT:
     66       m = PIPE_RENDER_COND_NO_WAIT;
     67       break;
     68    case GL_QUERY_BY_REGION_WAIT:
     69       m = PIPE_RENDER_COND_BY_REGION_WAIT;
     70       break;
     71    case GL_QUERY_BY_REGION_NO_WAIT:
     72       m = PIPE_RENDER_COND_BY_REGION_NO_WAIT;
     73       break;
     74    default:
     75       assert(0 && "bad mode in st_BeginConditionalRender");
     76       m = PIPE_RENDER_COND_WAIT;
     77    }
     78 
     79    st->render_condition = stq->pq;
     80    st->condition_mode = m;
     81 
     82    pipe->render_condition(pipe, stq->pq, m);
     83 }
     84 
     85 
     86 /**
     87  * Called via ctx->Driver.BeginConditionalRender()
     88  */
     89 static void
     90 st_EndConditionalRender(struct gl_context *ctx, struct gl_query_object *q)
     91 {
     92    struct st_context *st = st_context(ctx);
     93    struct pipe_context *pipe = st->pipe;
     94    (void) q;
     95 
     96    st_flush_bitmap_cache(st);
     97 
     98    pipe->render_condition(pipe, NULL, 0);
     99    st->render_condition = NULL;
    100 }
    101 
    102 
    103 
    104 void st_init_cond_render_functions(struct dd_function_table *functions)
    105 {
    106    functions->BeginConditionalRender = st_BeginConditionalRender;
    107    functions->EndConditionalRender = st_EndConditionalRender;
    108 }
    109