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55 | pj | 1 | /* $Id: rastpos.c,v 1.1 2003-02-28 11:42:04 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 "clip.h" |
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30 | #include "colormac.h" |
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31 | #include "context.h" |
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32 | #include "feedback.h" |
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33 | #include "light.h" |
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34 | #include "macros.h" |
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35 | #include "mmath.h" |
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36 | #include "rastpos.h" |
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37 | #include "state.h" |
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38 | #include "simple_list.h" |
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39 | #include "mtypes.h" |
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40 | |||
41 | #include "math/m_matrix.h" |
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42 | #include "math/m_xform.h" |
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43 | |||
44 | |||
45 | /* |
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46 | * Clip a point against the view volume. |
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47 | * Input: v - vertex-vector describing the point to clip |
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48 | * Return: 0 = outside view volume |
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49 | * 1 = inside view volume |
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50 | */ |
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51 | static GLuint |
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52 | viewclip_point( const GLfloat v[] ) |
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53 | { |
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54 | if ( v[0] > v[3] || v[0] < -v[3] |
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55 | || v[1] > v[3] || v[1] < -v[3] |
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56 | || v[2] > v[3] || v[2] < -v[3] ) { |
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57 | return 0; |
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58 | } |
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59 | else { |
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60 | return 1; |
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61 | } |
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62 | } |
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63 | |||
64 | |||
65 | /* As above, but only clip test against far/near Z planes */ |
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66 | static GLuint |
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67 | viewclip_point_z( const GLfloat v[] ) |
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68 | { |
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69 | if (v[2] > v[3] || v[2] < -v[3] ) { |
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70 | return 0; |
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71 | } |
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72 | else { |
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73 | return 1; |
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74 | } |
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75 | } |
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76 | |||
77 | |||
78 | |||
79 | /* |
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80 | * Clip a point against the user clipping planes. |
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81 | * Input: v - vertex-vector describing the point to clip. |
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82 | * Return: 0 = point was clipped |
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83 | * 1 = point not clipped |
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84 | */ |
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85 | static GLuint |
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86 | userclip_point( GLcontext* ctx, const GLfloat v[] ) |
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87 | { |
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88 | GLuint p; |
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89 | |||
90 | for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { |
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91 | if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { |
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92 | GLfloat dot = v[0] * ctx->Transform._ClipUserPlane[p][0] |
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93 | + v[1] * ctx->Transform._ClipUserPlane[p][1] |
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94 | + v[2] * ctx->Transform._ClipUserPlane[p][2] |
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95 | + v[3] * ctx->Transform._ClipUserPlane[p][3]; |
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96 | if (dot < 0.0F) { |
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97 | return 0; |
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98 | } |
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99 | } |
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100 | } |
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101 | |||
102 | return 1; |
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103 | } |
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104 | |||
105 | |||
106 | /* This has been split off to allow the normal shade routines to |
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107 | * get a little closer to the vertex buffer, and to use the |
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108 | * GLvector objects directly. |
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109 | * Input: ctx - the context |
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110 | * vertex - vertex location |
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111 | * normal - normal vector |
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112 | * Output: Rcolor - returned color |
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113 | * Rspec - returned specular color (if separate specular enabled) |
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114 | * Rindex - returned color index |
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115 | */ |
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116 | static void |
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117 | shade_rastpos(GLcontext *ctx, |
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118 | const GLfloat vertex[4], |
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119 | const GLfloat normal[3], |
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120 | GLfloat Rcolor[4], |
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121 | GLfloat Rspec[4], |
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122 | GLuint *Rindex) |
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123 | { |
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124 | GLfloat (*base)[3] = ctx->Light._BaseColor; |
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125 | struct gl_light *light; |
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126 | GLfloat diffuseColor[4], specularColor[4]; |
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127 | GLfloat diffuse = 0, specular = 0; |
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128 | |||
129 | if (!ctx->_ShineTable[0] || !ctx->_ShineTable[1]) |
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130 | _mesa_validate_all_lighting_tables( ctx ); |
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131 | |||
132 | COPY_3V(diffuseColor, base[0]); |
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133 | diffuseColor[3] = CLAMP( ctx->Light.Material[0].Diffuse[3], 0.0F, 1.0F ); |
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134 | ASSIGN_4V(specularColor, 0.0, 0.0, 0.0, 0.0); |
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135 | |||
136 | foreach (light, &ctx->Light.EnabledList) { |
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137 | GLfloat n_dot_h; |
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138 | GLfloat attenuation = 1.0; |
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139 | GLfloat VP[3]; |
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140 | GLfloat n_dot_VP; |
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141 | GLfloat *h; |
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142 | GLfloat diffuseContrib[3], specularContrib[3]; |
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143 | GLboolean normalized; |
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144 | |||
145 | if (!(light->_Flags & LIGHT_POSITIONAL)) { |
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146 | COPY_3V(VP, light->_VP_inf_norm); |
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147 | attenuation = light->_VP_inf_spot_attenuation; |
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148 | } |
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149 | else { |
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150 | GLfloat d; |
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151 | |||
152 | SUB_3V(VP, light->_Position, vertex); |
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153 | d = (GLfloat) LEN_3FV( VP ); |
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154 | |||
155 | if ( d > 1e-6) { |
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156 | GLfloat invd = 1.0F / d; |
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157 | SELF_SCALE_SCALAR_3V(VP, invd); |
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158 | } |
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159 | attenuation = 1.0F / (light->ConstantAttenuation + d * |
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160 | (light->LinearAttenuation + d * |
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161 | light->QuadraticAttenuation)); |
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162 | |||
163 | if (light->_Flags & LIGHT_SPOT) { |
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164 | GLfloat PV_dot_dir = - DOT3(VP, light->_NormDirection); |
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165 | |||
166 | if (PV_dot_dir<light->_CosCutoff) { |
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167 | continue; |
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168 | } |
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169 | else { |
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170 | double x = PV_dot_dir * (EXP_TABLE_SIZE-1); |
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171 | int k = (int) x; |
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172 | GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] |
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173 | + (x-k)*light->_SpotExpTable[k][1]); |
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174 | attenuation *= spot; |
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175 | } |
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176 | } |
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177 | } |
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178 | |||
179 | if (attenuation < 1e-3) |
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180 | continue; |
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181 | |||
182 | n_dot_VP = DOT3( normal, VP ); |
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183 | |||
184 | if (n_dot_VP < 0.0F) { |
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185 | ACC_SCALE_SCALAR_3V(diffuseColor, attenuation, light->_MatAmbient[0]); |
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186 | continue; |
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187 | } |
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188 | |||
189 | COPY_3V(diffuseContrib, light->_MatAmbient[0]); |
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190 | ACC_SCALE_SCALAR_3V(diffuseContrib, n_dot_VP, light->_MatDiffuse[0]); |
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191 | diffuse += n_dot_VP * light->_dli * attenuation; |
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192 | ASSIGN_3V(specularContrib, 0.0, 0.0, 0.0); |
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193 | |||
194 | { |
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195 | if (ctx->Light.Model.LocalViewer) { |
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196 | GLfloat v[3]; |
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197 | COPY_3V(v, vertex); |
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198 | NORMALIZE_3FV(v); |
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199 | SUB_3V(VP, VP, v); |
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200 | h = VP; |
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201 | normalized = 0; |
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202 | } |
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203 | else if (light->_Flags & LIGHT_POSITIONAL) { |
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204 | h = VP; |
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205 | ACC_3V(h, ctx->_EyeZDir); |
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206 | normalized = 0; |
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207 | } |
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208 | else { |
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209 | h = light->_h_inf_norm; |
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210 | normalized = 1; |
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211 | } |
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212 | |||
213 | n_dot_h = DOT3(normal, h); |
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214 | |||
215 | if (n_dot_h > 0.0F) { |
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216 | const struct gl_material *mat = &ctx->Light.Material[0]; |
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217 | GLfloat spec_coef; |
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218 | GLfloat shininess = mat->Shininess; |
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219 | |||
220 | if (!normalized) { |
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221 | n_dot_h *= n_dot_h; |
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222 | n_dot_h /= LEN_SQUARED_3FV( h ); |
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223 | shininess *= .5; |
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224 | } |
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225 | |||
226 | GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec_coef ); |
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227 | |||
228 | if (spec_coef > 1.0e-10) { |
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229 | if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) { |
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230 | ACC_SCALE_SCALAR_3V( specularContrib, spec_coef, |
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231 | light->_MatSpecular[0]); |
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232 | } |
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233 | else { |
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234 | ACC_SCALE_SCALAR_3V( diffuseContrib, spec_coef, |
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235 | light->_MatSpecular[0]); |
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236 | } |
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237 | specular += spec_coef * light->_sli * attenuation; |
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238 | } |
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239 | } |
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240 | } |
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241 | |||
242 | ACC_SCALE_SCALAR_3V( diffuseColor, attenuation, diffuseContrib ); |
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243 | ACC_SCALE_SCALAR_3V( specularColor, attenuation, specularContrib ); |
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244 | } |
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245 | |||
246 | if (ctx->Visual.rgbMode) { |
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247 | Rcolor[0] = CLAMP(diffuseColor[0], 0.0F, 1.0F); |
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248 | Rcolor[1] = CLAMP(diffuseColor[1], 0.0F, 1.0F); |
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249 | Rcolor[2] = CLAMP(diffuseColor[2], 0.0F, 1.0F); |
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250 | Rcolor[3] = CLAMP(diffuseColor[3], 0.0F, 1.0F); |
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251 | Rspec[0] = CLAMP(specularColor[0], 0.0F, 1.0F); |
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252 | Rspec[1] = CLAMP(specularColor[1], 0.0F, 1.0F); |
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253 | Rspec[2] = CLAMP(specularColor[2], 0.0F, 1.0F); |
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254 | Rspec[3] = CLAMP(specularColor[3], 0.0F, 1.0F); |
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255 | } |
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256 | else { |
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257 | struct gl_material *mat = &ctx->Light.Material[0]; |
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258 | GLfloat d_a = mat->DiffuseIndex - mat->AmbientIndex; |
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259 | GLfloat s_a = mat->SpecularIndex - mat->AmbientIndex; |
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260 | GLfloat ind = mat->AmbientIndex |
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261 | + diffuse * (1.0F-specular) * d_a |
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262 | + specular * s_a; |
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263 | if (ind > mat->SpecularIndex) { |
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264 | ind = mat->SpecularIndex; |
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265 | } |
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266 | *Rindex = (GLuint) (GLint) ind; |
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267 | } |
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268 | |||
269 | } |
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270 | |||
271 | /* |
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272 | * Caller: context->API.RasterPos4f |
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273 | */ |
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274 | static void |
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275 | raster_pos4f(GLcontext *ctx, GLfloat x, GLfloat y, GLfloat z, GLfloat w) |
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276 | { |
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277 | GLfloat v[4], eye[4], clip[4], ndc[3], d; |
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278 | ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); |
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279 | FLUSH_CURRENT(ctx, 0); |
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280 | |||
281 | if (ctx->NewState) |
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282 | _mesa_update_state( ctx ); |
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283 | |||
284 | ASSIGN_4V( v, x, y, z, w ); |
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285 | TRANSFORM_POINT( eye, ctx->ModelviewMatrixStack.Top->m, v ); |
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286 | |||
287 | /* raster color */ |
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288 | if (ctx->Light.Enabled) { |
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289 | GLfloat *norm, eyenorm[3]; |
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290 | GLfloat *objnorm = ctx->Current.Attrib[VERT_ATTRIB_NORMAL]; |
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291 | |||
292 | if (ctx->_NeedEyeCoords) { |
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293 | GLfloat *inv = ctx->ModelviewMatrixStack.Top->inv; |
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294 | TRANSFORM_NORMAL( eyenorm, objnorm, inv ); |
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295 | norm = eyenorm; |
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296 | } |
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297 | else { |
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298 | norm = objnorm; |
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299 | } |
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300 | |||
301 | shade_rastpos( ctx, v, norm, |
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302 | ctx->Current.RasterColor, |
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303 | ctx->Current.RasterSecondaryColor, |
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304 | &ctx->Current.RasterIndex ); |
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305 | |||
306 | } |
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307 | else { |
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308 | /* use current color or index */ |
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309 | if (ctx->Visual.rgbMode) { |
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310 | COPY_4FV(ctx->Current.RasterColor, |
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311 | ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); |
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312 | COPY_4FV(ctx->Current.RasterSecondaryColor, |
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313 | ctx->Current.Attrib[VERT_ATTRIB_COLOR1]); |
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314 | } |
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315 | else { |
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316 | ctx->Current.RasterIndex = ctx->Current.Index; |
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317 | } |
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318 | } |
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319 | |||
320 | /* compute raster distance */ |
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321 | if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) |
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322 | ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; |
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323 | else |
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324 | ctx->Current.RasterDistance = (GLfloat) |
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325 | GL_SQRT( eye[0]*eye[0] + eye[1]*eye[1] + eye[2]*eye[2] ); |
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326 | |||
327 | /* apply projection matrix: clip = Proj * eye */ |
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328 | TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye ); |
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329 | |||
330 | /* clip to view volume */ |
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331 | if (ctx->Transform.RasterPositionUnclipped) { |
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332 | /* GL_IBM_rasterpos_clip: only clip against Z */ |
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333 | if (viewclip_point_z(clip) == 0) |
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334 | ctx->Current.RasterPosValid = GL_FALSE; |
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335 | } |
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336 | else if (viewclip_point(clip) == 0) { |
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337 | /* Normal OpenGL behaviour */ |
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338 | ctx->Current.RasterPosValid = GL_FALSE; |
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339 | return; |
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340 | } |
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341 | |||
342 | /* clip to user clipping planes */ |
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343 | if (ctx->Transform.ClipPlanesEnabled && !userclip_point(ctx, clip)) { |
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344 | ctx->Current.RasterPosValid = GL_FALSE; |
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345 | return; |
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346 | } |
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347 | |||
348 | /* ndc = clip / W */ |
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349 | ASSERT( clip[3]!=0.0 ); |
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350 | d = 1.0F / clip[3]; |
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351 | ndc[0] = clip[0] * d; |
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352 | ndc[1] = clip[1] * d; |
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353 | ndc[2] = clip[2] * d; |
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354 | |||
355 | ctx->Current.RasterPos[0] = (ndc[0] * ctx->Viewport._WindowMap.m[MAT_SX] + |
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356 | ctx->Viewport._WindowMap.m[MAT_TX]); |
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357 | ctx->Current.RasterPos[1] = (ndc[1] * ctx->Viewport._WindowMap.m[MAT_SY] + |
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358 | ctx->Viewport._WindowMap.m[MAT_TY]); |
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359 | ctx->Current.RasterPos[2] = (ndc[2] * ctx->Viewport._WindowMap.m[MAT_SZ] + |
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360 | ctx->Viewport._WindowMap.m[MAT_TZ]) / ctx->DepthMaxF; |
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361 | ctx->Current.RasterPos[3] = clip[3]; |
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362 | ctx->Current.RasterPosValid = GL_TRUE; |
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363 | |||
364 | { |
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365 | GLuint texSet; |
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366 | for (texSet = 0; texSet < ctx->Const.MaxTextureUnits; texSet++) { |
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367 | COPY_4FV( ctx->Current.RasterTexCoords[texSet], |
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368 | ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texSet] ); |
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369 | } |
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370 | } |
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371 | |||
372 | if (ctx->RenderMode==GL_SELECT) { |
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373 | _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] ); |
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374 | } |
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375 | |||
376 | } |
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377 | |||
378 | |||
379 | void |
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380 | _mesa_RasterPos2d(GLdouble x, GLdouble y) |
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381 | { |
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382 | _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); |
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383 | } |
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384 | |||
385 | void |
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386 | _mesa_RasterPos2f(GLfloat x, GLfloat y) |
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387 | { |
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388 | _mesa_RasterPos4f(x, y, 0.0F, 1.0F); |
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389 | } |
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390 | |||
391 | void |
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392 | _mesa_RasterPos2i(GLint x, GLint y) |
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393 | { |
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394 | _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); |
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395 | } |
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396 | |||
397 | void |
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398 | _mesa_RasterPos2s(GLshort x, GLshort y) |
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399 | { |
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400 | _mesa_RasterPos4f(x, y, 0.0F, 1.0F); |
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401 | } |
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402 | |||
403 | void |
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404 | _mesa_RasterPos3d(GLdouble x, GLdouble y, GLdouble z) |
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405 | { |
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406 | _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); |
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407 | } |
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408 | |||
409 | void |
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410 | _mesa_RasterPos3f(GLfloat x, GLfloat y, GLfloat z) |
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411 | { |
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412 | _mesa_RasterPos4f(x, y, z, 1.0F); |
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413 | } |
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414 | |||
415 | void |
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416 | _mesa_RasterPos3i(GLint x, GLint y, GLint z) |
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417 | { |
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418 | _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); |
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419 | } |
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420 | |||
421 | void |
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422 | _mesa_RasterPos3s(GLshort x, GLshort y, GLshort z) |
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423 | { |
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424 | _mesa_RasterPos4f(x, y, z, 1.0F); |
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425 | } |
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426 | |||
427 | void |
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428 | _mesa_RasterPos4d(GLdouble x, GLdouble y, GLdouble z, GLdouble w) |
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429 | { |
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430 | _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); |
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431 | } |
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432 | |||
433 | void |
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434 | _mesa_RasterPos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) |
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435 | { |
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436 | GET_CURRENT_CONTEXT(ctx); |
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437 | raster_pos4f(ctx, x, y, z, w); |
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438 | } |
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439 | |||
440 | void |
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441 | _mesa_RasterPos4i(GLint x, GLint y, GLint z, GLint w) |
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442 | { |
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443 | _mesa_RasterPos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); |
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444 | } |
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445 | |||
446 | void |
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447 | _mesa_RasterPos4s(GLshort x, GLshort y, GLshort z, GLshort w) |
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448 | { |
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449 | _mesa_RasterPos4f(x, y, z, w); |
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450 | } |
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451 | |||
452 | void |
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453 | _mesa_RasterPos2dv(const GLdouble *v) |
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454 | { |
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455 | _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); |
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456 | } |
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457 | |||
458 | void |
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459 | _mesa_RasterPos2fv(const GLfloat *v) |
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460 | { |
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461 | _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F); |
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462 | } |
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463 | |||
464 | void |
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465 | _mesa_RasterPos2iv(const GLint *v) |
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466 | { |
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467 | _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); |
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468 | } |
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469 | |||
470 | void |
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471 | _mesa_RasterPos2sv(const GLshort *v) |
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472 | { |
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473 | _mesa_RasterPos4f(v[0], v[1], 0.0F, 1.0F); |
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474 | } |
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475 | |||
476 | void |
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477 | _mesa_RasterPos3dv(const GLdouble *v) |
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478 | { |
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479 | _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); |
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480 | } |
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481 | |||
482 | void |
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483 | _mesa_RasterPos3fv(const GLfloat *v) |
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484 | { |
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485 | _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F); |
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486 | } |
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487 | |||
488 | void |
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489 | _mesa_RasterPos3iv(const GLint *v) |
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490 | { |
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491 | _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); |
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492 | } |
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493 | |||
494 | void |
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495 | _mesa_RasterPos3sv(const GLshort *v) |
||
496 | { |
||
497 | _mesa_RasterPos4f(v[0], v[1], v[2], 1.0F); |
||
498 | } |
||
499 | |||
500 | void |
||
501 | _mesa_RasterPos4dv(const GLdouble *v) |
||
502 | { |
||
503 | _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], |
||
504 | (GLfloat) v[2], (GLfloat) v[3]); |
||
505 | } |
||
506 | |||
507 | void |
||
508 | _mesa_RasterPos4fv(const GLfloat *v) |
||
509 | { |
||
510 | _mesa_RasterPos4f(v[0], v[1], v[2], v[3]); |
||
511 | } |
||
512 | |||
513 | void |
||
514 | _mesa_RasterPos4iv(const GLint *v) |
||
515 | { |
||
516 | _mesa_RasterPos4f((GLfloat) v[0], (GLfloat) v[1], |
||
517 | (GLfloat) v[2], (GLfloat) v[3]); |
||
518 | } |
||
519 | |||
520 | void |
||
521 | _mesa_RasterPos4sv(const GLshort *v) |
||
522 | { |
||
523 | _mesa_RasterPos4f(v[0], v[1], v[2], v[3]); |
||
524 | } |
||
525 | |||
526 | |||
527 | /**********************************************************************/ |
||
528 | /*** GL_ARB_window_pos / GL_MESA_window_pos ***/ |
||
529 | /**********************************************************************/ |
||
530 | |||
531 | static void |
||
532 | window_pos3f(GLfloat x, GLfloat y, GLfloat z) |
||
533 | { |
||
534 | GET_CURRENT_CONTEXT(ctx); |
||
535 | GLfloat z2; |
||
536 | |||
537 | ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); |
||
538 | FLUSH_CURRENT(ctx, 0); |
||
539 | |||
540 | z2 = CLAMP(z, 0.0F, 1.0F) * (ctx->Viewport.Far - ctx->Viewport.Near) |
||
541 | + ctx->Viewport.Near; |
||
542 | |||
543 | /* set raster position */ |
||
544 | ctx->Current.RasterPos[0] = x; |
||
545 | ctx->Current.RasterPos[1] = y; |
||
546 | ctx->Current.RasterPos[2] = z2; |
||
547 | ctx->Current.RasterPos[3] = 1.0F; |
||
548 | |||
549 | ctx->Current.RasterPosValid = GL_TRUE; |
||
550 | |||
551 | if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) |
||
552 | ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; |
||
553 | else |
||
554 | ctx->Current.RasterDistance = 0.0; |
||
555 | |||
556 | /* raster color = current color or index */ |
||
557 | if (ctx->Visual.rgbMode) { |
||
558 | ctx->Current.RasterColor[0] |
||
559 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][0], 0.0F, 1.0F); |
||
560 | ctx->Current.RasterColor[1] |
||
561 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][1], 0.0F, 1.0F); |
||
562 | ctx->Current.RasterColor[2] |
||
563 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][2], 0.0F, 1.0F); |
||
564 | ctx->Current.RasterColor[3] |
||
565 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR0][3], 0.0F, 1.0F); |
||
566 | ctx->Current.RasterSecondaryColor[0] |
||
567 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][0], 0.0F, 1.0F); |
||
568 | ctx->Current.RasterSecondaryColor[1] |
||
569 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][1], 0.0F, 1.0F); |
||
570 | ctx->Current.RasterSecondaryColor[2] |
||
571 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][2], 0.0F, 1.0F); |
||
572 | ctx->Current.RasterSecondaryColor[3] |
||
573 | = CLAMP(ctx->Current.Attrib[VERT_ATTRIB_COLOR1][3], 0.0F, 1.0F); |
||
574 | } |
||
575 | else { |
||
576 | ctx->Current.RasterIndex = ctx->Current.Index; |
||
577 | } |
||
578 | |||
579 | /* raster texcoord = current texcoord */ |
||
580 | { |
||
581 | GLuint texSet; |
||
582 | for (texSet = 0; texSet < ctx->Const.MaxTextureUnits; texSet++) { |
||
583 | COPY_4FV( ctx->Current.RasterTexCoords[texSet], |
||
584 | ctx->Current.Attrib[VERT_ATTRIB_TEX0 + texSet] ); |
||
585 | } |
||
586 | } |
||
587 | |||
588 | if (ctx->RenderMode==GL_SELECT) { |
||
589 | _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] ); |
||
590 | } |
||
591 | } |
||
592 | |||
593 | |||
594 | /* This is just to support the GL_MESA_window_pos version */ |
||
595 | static void |
||
596 | window_pos4f(GLfloat x, GLfloat y, GLfloat z, GLfloat w) |
||
597 | { |
||
598 | GET_CURRENT_CONTEXT(ctx); |
||
599 | window_pos3f(x, y, z); |
||
600 | ctx->Current.RasterPos[3] = w; |
||
601 | } |
||
602 | |||
603 | |||
604 | void |
||
605 | _mesa_WindowPos2dMESA(GLdouble x, GLdouble y) |
||
606 | { |
||
607 | window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); |
||
608 | } |
||
609 | |||
610 | void |
||
611 | _mesa_WindowPos2fMESA(GLfloat x, GLfloat y) |
||
612 | { |
||
613 | window_pos4f(x, y, 0.0F, 1.0F); |
||
614 | } |
||
615 | |||
616 | void |
||
617 | _mesa_WindowPos2iMESA(GLint x, GLint y) |
||
618 | { |
||
619 | window_pos4f((GLfloat) x, (GLfloat) y, 0.0F, 1.0F); |
||
620 | } |
||
621 | |||
622 | void |
||
623 | _mesa_WindowPos2sMESA(GLshort x, GLshort y) |
||
624 | { |
||
625 | window_pos4f(x, y, 0.0F, 1.0F); |
||
626 | } |
||
627 | |||
628 | void |
||
629 | _mesa_WindowPos3dMESA(GLdouble x, GLdouble y, GLdouble z) |
||
630 | { |
||
631 | window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); |
||
632 | } |
||
633 | |||
634 | void |
||
635 | _mesa_WindowPos3fMESA(GLfloat x, GLfloat y, GLfloat z) |
||
636 | { |
||
637 | window_pos4f(x, y, z, 1.0F); |
||
638 | } |
||
639 | |||
640 | void |
||
641 | _mesa_WindowPos3iMESA(GLint x, GLint y, GLint z) |
||
642 | { |
||
643 | window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, 1.0F); |
||
644 | } |
||
645 | |||
646 | void |
||
647 | _mesa_WindowPos3sMESA(GLshort x, GLshort y, GLshort z) |
||
648 | { |
||
649 | window_pos4f(x, y, z, 1.0F); |
||
650 | } |
||
651 | |||
652 | void |
||
653 | _mesa_WindowPos4dMESA(GLdouble x, GLdouble y, GLdouble z, GLdouble w) |
||
654 | { |
||
655 | window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); |
||
656 | } |
||
657 | |||
658 | void |
||
659 | _mesa_WindowPos4fMESA(GLfloat x, GLfloat y, GLfloat z, GLfloat w) |
||
660 | { |
||
661 | window_pos4f(x, y, z, w); |
||
662 | } |
||
663 | |||
664 | void |
||
665 | _mesa_WindowPos4iMESA(GLint x, GLint y, GLint z, GLint w) |
||
666 | { |
||
667 | window_pos4f((GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); |
||
668 | } |
||
669 | |||
670 | void |
||
671 | _mesa_WindowPos4sMESA(GLshort x, GLshort y, GLshort z, GLshort w) |
||
672 | { |
||
673 | window_pos4f(x, y, z, w); |
||
674 | } |
||
675 | |||
676 | void |
||
677 | _mesa_WindowPos2dvMESA(const GLdouble *v) |
||
678 | { |
||
679 | window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); |
||
680 | } |
||
681 | |||
682 | void |
||
683 | _mesa_WindowPos2fvMESA(const GLfloat *v) |
||
684 | { |
||
685 | window_pos4f(v[0], v[1], 0.0F, 1.0F); |
||
686 | } |
||
687 | |||
688 | void |
||
689 | _mesa_WindowPos2ivMESA(const GLint *v) |
||
690 | { |
||
691 | window_pos4f((GLfloat) v[0], (GLfloat) v[1], 0.0F, 1.0F); |
||
692 | } |
||
693 | |||
694 | void |
||
695 | _mesa_WindowPos2svMESA(const GLshort *v) |
||
696 | { |
||
697 | window_pos4f(v[0], v[1], 0.0F, 1.0F); |
||
698 | } |
||
699 | |||
700 | void |
||
701 | _mesa_WindowPos3dvMESA(const GLdouble *v) |
||
702 | { |
||
703 | window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); |
||
704 | } |
||
705 | |||
706 | void |
||
707 | _mesa_WindowPos3fvMESA(const GLfloat *v) |
||
708 | { |
||
709 | window_pos4f(v[0], v[1], v[2], 1.0); |
||
710 | } |
||
711 | |||
712 | void |
||
713 | _mesa_WindowPos3ivMESA(const GLint *v) |
||
714 | { |
||
715 | window_pos4f((GLfloat) v[0], (GLfloat) v[1], (GLfloat) v[2], 1.0F); |
||
716 | } |
||
717 | |||
718 | void |
||
719 | _mesa_WindowPos3svMESA(const GLshort *v) |
||
720 | { |
||
721 | window_pos4f(v[0], v[1], v[2], 1.0F); |
||
722 | } |
||
723 | |||
724 | void |
||
725 | _mesa_WindowPos4dvMESA(const GLdouble *v) |
||
726 | { |
||
727 | window_pos4f((GLfloat) v[0], (GLfloat) v[1], |
||
728 | (GLfloat) v[2], (GLfloat) v[3]); |
||
729 | } |
||
730 | |||
731 | void |
||
732 | _mesa_WindowPos4fvMESA(const GLfloat *v) |
||
733 | { |
||
734 | window_pos4f(v[0], v[1], v[2], v[3]); |
||
735 | } |
||
736 | |||
737 | void |
||
738 | _mesa_WindowPos4ivMESA(const GLint *v) |
||
739 | { |
||
740 | window_pos4f((GLfloat) v[0], (GLfloat) v[1], |
||
741 | (GLfloat) v[2], (GLfloat) v[3]); |
||
742 | } |
||
743 | |||
744 | void |
||
745 | _mesa_WindowPos4svMESA(const GLshort *v) |
||
746 | { |
||
747 | window_pos4f(v[0], v[1], v[2], v[3]); |
||
748 | } |
||
749 | |||
750 | |||
751 | |||
752 | #if 0 |
||
753 | |||
754 | /* |
||
755 | * OpenGL implementation of glWindowPos*MESA() |
||
756 | */ |
||
757 | void glWindowPos4fMESA( GLfloat x, GLfloat y, GLfloat z, GLfloat w ) |
||
758 | { |
||
759 | GLfloat fx, fy; |
||
760 | |||
761 | /* Push current matrix mode and viewport attributes */ |
||
762 | glPushAttrib( GL_TRANSFORM_BIT | GL_VIEWPORT_BIT ); |
||
763 | |||
764 | /* Setup projection parameters */ |
||
765 | glMatrixMode( GL_PROJECTION ); |
||
766 | glPushMatrix(); |
||
767 | glLoadIdentity(); |
||
768 | glMatrixMode( GL_MODELVIEW ); |
||
769 | glPushMatrix(); |
||
770 | glLoadIdentity(); |
||
771 | |||
772 | glDepthRange( z, z ); |
||
773 | glViewport( (int) x - 1, (int) y - 1, 2, 2 ); |
||
774 | |||
775 | /* set the raster (window) position */ |
||
776 | fx = x - (int) x; |
||
777 | fy = y - (int) y; |
||
778 | glRasterPos4f( fx, fy, 0.0, w ); |
||
779 | |||
780 | /* restore matrices, viewport and matrix mode */ |
||
781 | glPopMatrix(); |
||
782 | glMatrixMode( GL_PROJECTION ); |
||
783 | glPopMatrix(); |
||
784 | |||
785 | glPopAttrib(); |
||
786 | } |
||
787 | |||
788 | #endif |