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.
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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
st_BeginConditionalRender(struct gl_context * ctx,struct gl_query_object * q,GLenum mode)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
st_EndConditionalRender(struct gl_context * ctx,struct gl_query_object * q)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 
st_init_cond_render_functions(struct dd_function_table * functions)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