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57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 7.1
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*
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* Copyright (C) 1999-2007 Brian Paul 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 "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is 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
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* in 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
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* OR 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
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <precomp.h>
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/**
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* Called via glSampleCoverageARB
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*/
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void GLAPIENTRY
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_mesa_SampleCoverageARB(GLclampf value, GLboolean invert)
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{
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );
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ctx->Multisample.SampleCoverageValue = (GLfloat) CLAMP(value, 0.0, 1.0);
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ctx->Multisample.SampleCoverageInvert = invert;
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ctx->NewState |= _NEW_MULTISAMPLE;
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}
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/**
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* Initialize the context's multisample state.
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* \param ctx the GL context.
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*/
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void
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_mesa_init_multisample(struct gl_context *ctx)
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{
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ctx->Multisample.Enabled = GL_TRUE;
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ctx->Multisample.SampleAlphaToCoverage = GL_FALSE;
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ctx->Multisample.SampleAlphaToOne = GL_FALSE;
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ctx->Multisample.SampleCoverage = GL_FALSE;
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ctx->Multisample.SampleCoverageValue = 1.0;
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ctx->Multisample.SampleCoverageInvert = GL_FALSE;
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}
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