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108 lines
3.5 KiB
108 lines
3.5 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// TOGL CODE LICENSE |
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// |
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// Copyright 2011-2014 Valve Corporation |
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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 copy |
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// of this software and associated documentation files (the "Software"), to deal |
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// in the Software without restriction, including without limitation the rights |
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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// copies of the Software, and to permit persons to whom the Software is |
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// furnished to do so, subject to the following conditions: |
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// |
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// The above copyright notice and this permission notice shall be included in |
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// all copies or substantial portions of the Software. |
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// |
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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// THE SOFTWARE. |
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// |
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// cglmquery.h |
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// GLMgr queries |
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// |
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//=============================================================================== |
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#ifndef CGLMQUERY_H |
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#define CGLMQUERY_H |
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#pragma once |
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//=============================================================================== |
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// forward declarations |
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class GLMContext; |
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class CGLMQuery; |
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//=============================================================================== |
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enum EGLMQueryType |
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{ |
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EOcclusion, |
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EFence, |
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EGLMQueryCount |
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}; |
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struct GLMQueryParams |
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{ |
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EGLMQueryType m_type; |
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}; |
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class CGLMQuery |
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{ |
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// leave everything public til it's running |
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public: |
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friend class GLMContext; // only GLMContext can make CGLMTex objects |
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friend struct IDirect3DDevice9; |
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friend struct IDirect3DQuery9; |
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GLMContext *m_ctx; // link back to parent context |
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GLMQueryParams m_params; // params created with |
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GLuint m_name; // name of the query object per se - could be fence, could be query object ... NOT USED WITH GL_ARB_sync! |
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#ifdef HAVE_GL_ARB_SYNC |
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GLsync m_syncobj; // GL_ARB_sync object. NOT USED WITH GL_NV_fence or GL_APPLE_fence! |
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#else |
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GLuint m_syncobj; |
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#endif |
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bool m_started; |
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bool m_stopped; |
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bool m_done; |
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bool m_nullQuery; // was gl_nullqueries true at Start time - if so, continue to act like a null query through Stop/IsDone/Complete time |
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// restated - only Start should examine the convar. |
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static uint s_nTotalOcclusionQueryCreatesOrDeletes; |
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CGLMQuery( GLMContext *ctx, GLMQueryParams *params ); |
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~CGLMQuery( ); |
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// for an occlusion query: |
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// Start = BeginQuery query-start goes into stream |
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// Stop = EndQuery query-end goes into stream - a fence is also set so we can probe for completion |
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// IsDone = TestFence use the added fence to ask if query-end has passed (i.e. will Complete block?) |
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// Complete = GetQueryObjectuivARB(uint id, enum pname, uint *params) - extract the sample count |
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// for a fence query: |
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// Start = SetFence fence goes into command stream |
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// Stop = NOP fences are self finishing - no need to call Stop on a fence |
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// IsDone = TestFence ask if fence passed |
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// Complete = FinishFence |
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void Start ( void ); |
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void Stop ( void ); |
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bool IsDone ( void ); |
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void Complete ( uint *result ); |
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// accessors for the started/stopped state |
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bool IsStarted ( void ); |
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bool IsStopped ( void ); |
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}; |
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#endif
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