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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 55 | pj | 1 | /* $Id: hint.c,v 1.1 2003-02-28 11:42:02 pj Exp $ */ |
| 2 | |||
| 3 | /* |
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| 4 | * Mesa 3-D graphics library |
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| 5 | * Version: 4.1 |
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| 6 | * |
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| 7 | * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. |
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| 8 | * |
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 10 | * copy of this software and associated documentation files (the "Software"), |
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| 11 | * to deal in the Software without restriction, including without limitation |
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 14 | * Software is furnished to do so, subject to the following conditions: |
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| 15 | * |
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| 16 | * The above copyright notice and this permission notice shall be included |
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| 17 | * in all copies or substantial portions of the Software. |
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| 18 | * |
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 25 | */ |
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| 26 | |||
| 27 | |||
| 28 | #include "glheader.h" |
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| 29 | #include "enums.h" |
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| 30 | #include "context.h" |
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| 31 | #include "hint.h" |
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| 32 | #include "imports.h" |
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| 33 | |||
| 34 | |||
| 35 | |||
| 36 | void |
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| 37 | _mesa_Hint( GLenum target, GLenum mode ) |
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| 38 | { |
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| 39 | GET_CURRENT_CONTEXT(ctx); |
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| 40 | ASSERT_OUTSIDE_BEGIN_END(ctx); |
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| 41 | |||
| 42 | if (MESA_VERBOSE & VERBOSE_API) |
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| 43 | _mesa_debug(ctx, "glHint %s %d\n", |
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| 44 | _mesa_lookup_enum_by_nr(target), mode); |
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| 45 | |||
| 46 | if (mode != GL_NICEST && mode != GL_FASTEST && mode != GL_DONT_CARE) { |
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| 47 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)"); |
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| 48 | return; |
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| 49 | } |
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| 50 | |||
| 51 | switch (target) { |
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| 52 | case GL_FOG_HINT: |
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| 53 | if (ctx->Hint.Fog == mode) |
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| 54 | return; |
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| 55 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 56 | ctx->Hint.Fog = mode; |
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| 57 | break; |
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| 58 | case GL_LINE_SMOOTH_HINT: |
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| 59 | if (ctx->Hint.LineSmooth == mode) |
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| 60 | return; |
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| 61 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 62 | ctx->Hint.LineSmooth = mode; |
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| 63 | break; |
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| 64 | case GL_PERSPECTIVE_CORRECTION_HINT: |
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| 65 | if (ctx->Hint.PerspectiveCorrection == mode) |
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| 66 | return; |
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| 67 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 68 | ctx->Hint.PerspectiveCorrection = mode; |
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| 69 | break; |
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| 70 | case GL_POINT_SMOOTH_HINT: |
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| 71 | if (ctx->Hint.PointSmooth == mode) |
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| 72 | return; |
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| 73 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 74 | ctx->Hint.PointSmooth = mode; |
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| 75 | break; |
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| 76 | case GL_POLYGON_SMOOTH_HINT: |
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| 77 | if (ctx->Hint.PolygonSmooth == mode) |
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| 78 | return; |
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| 79 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 80 | ctx->Hint.PolygonSmooth = mode; |
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| 81 | break; |
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| 82 | |||
| 83 | /* GL_EXT_clip_volume_hint */ |
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| 84 | case GL_CLIP_VOLUME_CLIPPING_HINT_EXT: |
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| 85 | if (ctx->Hint.ClipVolumeClipping == mode) |
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| 86 | return; |
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| 87 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 88 | ctx->Hint.ClipVolumeClipping = mode; |
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| 89 | break; |
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| 90 | |||
| 91 | /* GL_ARB_texture_compression */ |
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| 92 | case GL_TEXTURE_COMPRESSION_HINT_ARB: |
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| 93 | if (!ctx->Extensions.ARB_texture_compression) { |
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| 94 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); |
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| 95 | return; |
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| 96 | } |
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| 97 | if (ctx->Hint.TextureCompression == mode) |
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| 98 | return; |
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| 99 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 100 | ctx->Hint.TextureCompression = mode; |
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| 101 | break; |
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| 102 | |||
| 103 | /* GL_SGIS_generate_mipmap */ |
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| 104 | case GL_GENERATE_MIPMAP_HINT_SGIS: |
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| 105 | if (!ctx->Extensions.SGIS_generate_mipmap) { |
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| 106 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); |
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| 107 | return; |
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| 108 | } |
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| 109 | if (ctx->Hint.GenerateMipmap == mode) |
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| 110 | return; |
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| 111 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 112 | ctx->Hint.GenerateMipmap = mode; |
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| 113 | break; |
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| 114 | |||
| 115 | default: |
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| 116 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); |
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| 117 | return; |
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| 118 | } |
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| 119 | |||
| 120 | if (ctx->Driver.Hint) { |
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| 121 | (*ctx->Driver.Hint)( ctx, target, mode ); |
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| 122 | } |
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| 123 | } |