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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 "cso_cache/cso_context.h"
     42 #include "st_context.h"
     43 #include "st_cb_queryobj.h"
     44 #include "st_cb_condrender.h"
     45 #include "st_cb_bitmap.h"
     46 
     47 
     48 /**
     49  * Called via ctx->Driver.BeginConditionalRender()
     50  */
     51 static void
     52 st_BeginConditionalRender(struct gl_context *ctx, struct gl_query_object *q,
     53                           GLenum mode)
     54 {
     55    struct st_query_object *stq = st_query_object(q);
     56    struct st_context *st = st_context(ctx);
     57    uint m;
     58    /* Don't invert the condition for rendering by default */
     59    boolean inverted = FALSE;
     60 
     61    st_flush_bitmap_cache(st);
     62 
     63    switch (mode) {
     64    case GL_QUERY_WAIT:
     65       m = PIPE_RENDER_COND_WAIT;
     66       break;
     67    case GL_QUERY_NO_WAIT:
     68       m = PIPE_RENDER_COND_NO_WAIT;
     69       break;
     70    case GL_QUERY_BY_REGION_WAIT:
     71       m = PIPE_RENDER_COND_BY_REGION_WAIT;
     72       break;
     73    case GL_QUERY_BY_REGION_NO_WAIT:
     74       m = PIPE_RENDER_COND_BY_REGION_NO_WAIT;
     75       break;
     76    case GL_QUERY_WAIT_INVERTED:
     77       m = PIPE_RENDER_COND_WAIT;
     78       inverted = TRUE;
     79       break;
     80    case GL_QUERY_NO_WAIT_INVERTED:
     81       m = PIPE_RENDER_COND_NO_WAIT;
     82       inverted = TRUE;
     83       break;
     84    case GL_QUERY_BY_REGION_WAIT_INVERTED:
     85       m = PIPE_RENDER_COND_BY_REGION_WAIT;
     86       inverted = TRUE;
     87       break;
     88    case GL_QUERY_BY_REGION_NO_WAIT_INVERTED:
     89       m = PIPE_RENDER_COND_BY_REGION_NO_WAIT;
     90       inverted = TRUE;
     91       break;
     92    default:
     93       assert(0 && "bad mode in st_BeginConditionalRender");
     94       m = PIPE_RENDER_COND_WAIT;
     95    }
     96 
     97    cso_set_render_condition(st->cso_context, stq->pq, inverted, m);
     98 }
     99 
    100 
    101 /**
    102  * Called via ctx->Driver.EndConditionalRender()
    103  */
    104 static void
    105 st_EndConditionalRender(struct gl_context *ctx, struct gl_query_object *q)
    106 {
    107    struct st_context *st = st_context(ctx);
    108    (void) q;
    109 
    110    st_flush_bitmap_cache(st);
    111 
    112    cso_set_render_condition(st->cso_context, NULL, FALSE, 0);
    113 }
    114 
    115 
    116 
    117 void st_init_cond_render_functions(struct dd_function_table *functions)
    118 {
    119    functions->BeginConditionalRender = st_BeginConditionalRender;
    120    functions->EndConditionalRender = st_EndConditionalRender;
    121 }
    122