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108 lines
3.5 KiB
C
108 lines
3.5 KiB
C
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/*
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* Mesa 3-D graphics library
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* Version: 4.1
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*
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* Copyright (C) 1999-2002 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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void GLAPIENTRY
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_mesa_Hint( GLenum target, GLenum mode )
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{
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END(ctx);
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if (MESA_VERBOSE & VERBOSE_API)
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_mesa_debug(ctx, "glHint %s %s\n",
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_mesa_lookup_enum_by_nr(target),
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_mesa_lookup_enum_by_nr(mode));
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if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) {
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_mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)");
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return;
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}
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switch (target) {
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case GL_FOG_HINT:
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if (ctx->Hint.Fog == mode)
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return;
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FLUSH_VERTICES(ctx, _NEW_HINT);
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ctx->Hint.Fog = mode;
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break;
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case GL_LINE_SMOOTH_HINT:
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if (ctx->Hint.LineSmooth == mode)
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return;
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FLUSH_VERTICES(ctx, _NEW_HINT);
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ctx->Hint.LineSmooth = mode;
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break;
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case GL_PERSPECTIVE_CORRECTION_HINT:
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if (ctx->Hint.PerspectiveCorrection == mode)
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return;
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FLUSH_VERTICES(ctx, _NEW_HINT);
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ctx->Hint.PerspectiveCorrection = mode;
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break;
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case GL_POINT_SMOOTH_HINT:
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if (ctx->Hint.PointSmooth == mode)
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return;
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FLUSH_VERTICES(ctx, _NEW_HINT);
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ctx->Hint.PointSmooth = mode;
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break;
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case GL_POLYGON_SMOOTH_HINT:
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if (ctx->Hint.PolygonSmooth == mode)
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return;
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FLUSH_VERTICES(ctx, _NEW_HINT);
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ctx->Hint.PolygonSmooth = mode;
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break;
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/* GL_EXT_clip_volume_hint */
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case GL_CLIP_VOLUME_CLIPPING_HINT_EXT:
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if (ctx->Hint.ClipVolumeClipping == mode)
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return;
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FLUSH_VERTICES(ctx, _NEW_HINT);
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ctx->Hint.ClipVolumeClipping = mode;
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break;
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default:
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_mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
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return;
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}
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if (ctx->Driver.Hint) {
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(*ctx->Driver.Hint)( ctx, target, mode );
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}
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}
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/**********************************************************************/
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/***** Initialization *****/
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/**********************************************************************/
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void _mesa_init_hint( struct gl_context * ctx )
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{
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/* Hint group */
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ctx->Hint.PerspectiveCorrection = GL_DONT_CARE;
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ctx->Hint.PointSmooth = GL_DONT_CARE;
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ctx->Hint.LineSmooth = GL_DONT_CARE;
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ctx->Hint.PolygonSmooth = GL_DONT_CARE;
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ctx->Hint.Fog = GL_DONT_CARE;
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ctx->Hint.ClipVolumeClipping = GL_DONT_CARE;
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}
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