Begin/EndQuery functions
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/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* glBegin/EndQuery interface to pipe
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*
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* \author Brian Paul
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*/
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#include "main/imports.h"
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#include "main/context.h"
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#include "main/image.h"
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#include "pipe/p_context.h"
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#include "pipe/p_defines.h"
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#include "st_context.h"
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#include "st_cb_queryobj.h"
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#include "st_public.h"
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/**
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* Do glReadPixels by getting rows from the framebuffer surface with
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* get_tile(). Convert to requested format/type with Mesa image routines.
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* Image transfer ops are done in software too.
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*/
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static void
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st_BeginQuery(GLcontext *ctx, GLenum target, struct gl_query_object *q)
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{
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struct pipe_context *pipe = ctx->st->pipe;
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if (target == GL_SAMPLES_PASSED_ARB) {
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pipe->reset_occlusion_counter(pipe);
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}
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}
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static void
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st_EndQuery(GLcontext *ctx, GLenum target, struct gl_query_object *q)
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{
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struct pipe_context *pipe = ctx->st->pipe;
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if (target == GL_SAMPLES_PASSED_ARB) {
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q->Result = pipe->get_occlusion_counter(pipe);
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}
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}
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void st_init_query_functions(struct dd_function_table *functions)
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{
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functions->BeginQuery = st_BeginQuery;
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functions->EndQuery = st_EndQuery;
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}
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@ -0,0 +1,36 @@
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/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef ST_CB_QUERYOBJ_H
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#define ST_CB_QUERYOBJ_H
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extern void
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st_init_query_functions(struct dd_function_table *functions);
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#endif
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