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| 1901 | serge | 1 | |
| 2 | * Mesa 3-D graphics library |
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| 3 | * Version: 4.1 |
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| 4 | * |
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| 5 | * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. |
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| 6 | * |
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| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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| 8 | * copy of this software and associated documentation files (the "Software"), |
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| 9 | * to deal in the Software without restriction, including without limitation |
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| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
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| 12 | * Software is furnished to do so, subject to the following conditions: |
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| 13 | * |
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| 14 | * The above copyright notice and this permission notice shall be included |
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| 15 | * in all copies or substantial portions of the Software. |
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| 16 | * |
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| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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| 20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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| 21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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| 22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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| 23 | */ |
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| 24 | |||
| 25 | |||
| 26 | |||
| 27 | #include "enums.h" |
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| 28 | #include "context.h" |
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| 29 | #include "hint.h" |
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| 30 | #include "imports.h" |
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| 31 | |||
| 32 | |||
| 33 | |||
| 34 | |||
| 35 | _mesa_Hint( GLenum target, GLenum mode ) |
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| 36 | { |
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| 37 | GET_CURRENT_CONTEXT(ctx); |
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| 38 | ASSERT_OUTSIDE_BEGIN_END(ctx); |
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| 39 | |||
| 40 | |||
| 41 | _mesa_debug(ctx, "glHint %s %d\n", |
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| 42 | _mesa_lookup_enum_by_nr(target), mode); |
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| 43 | |||
| 44 | |||
| 45 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(mode)"); |
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| 46 | return; |
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| 47 | } |
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| 48 | |||
| 49 | |||
| 50 | case GL_FOG_HINT: |
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| 51 | if (ctx->Hint.Fog == mode) |
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| 52 | return; |
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| 53 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 54 | ctx->Hint.Fog = mode; |
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| 55 | break; |
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| 56 | case GL_LINE_SMOOTH_HINT: |
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| 57 | if (ctx->Hint.LineSmooth == mode) |
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| 58 | return; |
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| 59 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 60 | ctx->Hint.LineSmooth = mode; |
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| 61 | break; |
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| 62 | case GL_PERSPECTIVE_CORRECTION_HINT: |
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| 63 | if (ctx->Hint.PerspectiveCorrection == mode) |
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| 64 | return; |
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| 65 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 66 | ctx->Hint.PerspectiveCorrection = mode; |
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| 67 | break; |
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| 68 | case GL_POINT_SMOOTH_HINT: |
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| 69 | if (ctx->Hint.PointSmooth == mode) |
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| 70 | return; |
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| 71 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 72 | ctx->Hint.PointSmooth = mode; |
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| 73 | break; |
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| 74 | case GL_POLYGON_SMOOTH_HINT: |
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| 75 | if (ctx->Hint.PolygonSmooth == mode) |
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| 76 | return; |
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| 77 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 78 | ctx->Hint.PolygonSmooth = mode; |
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| 79 | break; |
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| 80 | |||
| 81 | |||
| 82 | case GL_CLIP_VOLUME_CLIPPING_HINT_EXT: |
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| 83 | if (ctx->Hint.ClipVolumeClipping == mode) |
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| 84 | return; |
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| 85 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 86 | ctx->Hint.ClipVolumeClipping = mode; |
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| 87 | break; |
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| 88 | |||
| 89 | |||
| 90 | case GL_TEXTURE_COMPRESSION_HINT_ARB: |
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| 91 | if (ctx->Hint.TextureCompression == mode) |
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| 92 | return; |
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| 93 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 94 | ctx->Hint.TextureCompression = mode; |
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| 95 | break; |
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| 96 | |||
| 97 | |||
| 98 | case GL_GENERATE_MIPMAP_HINT_SGIS: |
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| 99 | if (ctx->Hint.GenerateMipmap == mode) |
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| 100 | return; |
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| 101 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 102 | ctx->Hint.GenerateMipmap = mode; |
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| 103 | break; |
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| 104 | |||
| 105 | |||
| 106 | case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_ARB: |
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| 107 | if (!ctx->Extensions.ARB_fragment_shader) { |
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| 108 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); |
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| 109 | return; |
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| 110 | } |
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| 111 | if (ctx->Hint.FragmentShaderDerivative == mode) |
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| 112 | return; |
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| 113 | FLUSH_VERTICES(ctx, _NEW_HINT); |
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| 114 | ctx->Hint.FragmentShaderDerivative = mode; |
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| 115 | break; |
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| 116 | |||
| 117 | |||
| 118 | _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)"); |
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| 119 | return; |
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| 120 | } |
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| 121 | |||
| 122 | |||
| 123 | (*ctx->Driver.Hint)( ctx, target, mode ); |
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| 124 | } |
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| 125 | } |
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| 126 | |||
| 127 | |||
| 128 | |||
| 129 | /***** Initialization *****/ |
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| 130 | /**********************************************************************/ |
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| 131 | |||
| 132 | |||
| 133 | { |
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| 134 | /* Hint group */ |
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| 135 | ctx->Hint.PerspectiveCorrection = GL_DONT_CARE; |
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| 136 | ctx->Hint.PointSmooth = GL_DONT_CARE; |
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| 137 | ctx->Hint.LineSmooth = GL_DONT_CARE; |
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| 138 | ctx->Hint.PolygonSmooth = GL_DONT_CARE; |
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| 139 | ctx->Hint.Fog = GL_DONT_CARE; |
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| 140 | ctx->Hint.ClipVolumeClipping = GL_DONT_CARE; |
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| 141 | ctx->Hint.TextureCompression = GL_DONT_CARE; |
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| 142 | ctx->Hint.GenerateMipmap = GL_DONT_CARE; |
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| 143 | ctx->Hint.FragmentShaderDerivative = GL_DONT_CARE; |
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| 144 | } |
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| 145 |