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57 | pj | 1 | /* $Id: ac_import.c,v 1.1 2003-02-28 11:49:40 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 | * Authors: |
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27 | * Keith Whitwell <keith@tungstengraphics.com> |
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28 | */ |
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29 | |||
30 | #include "glheader.h" |
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31 | #include "macros.h" |
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32 | #include "imports.h" |
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33 | #include "mmath.h" |
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34 | #include "mtypes.h" |
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35 | |||
36 | #include "math/m_translate.h" |
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37 | #include "array_cache/ac_context.h" |
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38 | #include "math/m_translate.h" |
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39 | |||
40 | #define STRIDE_ARRAY( array, offset ) \ |
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41 | do { \ |
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42 | char *tmp = (char *) (array).Ptr; \ |
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43 | tmp += (offset) * (array).StrideB; \ |
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44 | (array).Ptr = tmp; \ |
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45 | } while (0) |
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46 | |||
47 | /* Set the array pointer back to its source when the cached data is |
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48 | * invalidated: |
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49 | */ |
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50 | |||
51 | static void reset_texcoord( GLcontext *ctx, GLuint unit ) |
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52 | { |
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53 | ACcontext *ac = AC_CONTEXT(ctx); |
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54 | |||
55 | if (ctx->Array._Enabled & _NEW_ARRAY_TEXCOORD(unit)) { |
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56 | ac->Raw.TexCoord[unit] = ctx->Array.TexCoord[unit]; |
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57 | STRIDE_ARRAY(ac->Raw.TexCoord[unit], ac->start); |
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58 | } |
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59 | else { |
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60 | ac->Raw.TexCoord[unit] = ac->Fallback.TexCoord[unit]; |
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61 | |||
62 | if (ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][3] != 1.0) |
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63 | ac->Raw.TexCoord[unit].Size = 4; |
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64 | else if (ctx->Current.Attrib[VERT_ATTRIB_TEX0 + unit][2] != 0.0) |
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65 | ac->Raw.TexCoord[unit].Size = 3; |
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66 | else |
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67 | ac->Raw.TexCoord[unit].Size = 2; |
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68 | } |
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69 | |||
70 | ac->IsCached.TexCoord[unit] = GL_FALSE; |
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71 | ac->NewArrayState &= ~_NEW_ARRAY_TEXCOORD(unit); |
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72 | } |
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73 | |||
74 | static void reset_vertex( GLcontext *ctx ) |
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75 | { |
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76 | ACcontext *ac = AC_CONTEXT(ctx); |
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77 | ASSERT(ctx->Array.Vertex.Enabled |
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78 | || (ctx->VertexProgram.Enabled && ctx->Array.VertexAttrib[0].Enabled)); |
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79 | ac->Raw.Vertex = ctx->Array.Vertex; |
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80 | STRIDE_ARRAY(ac->Raw.Vertex, ac->start); |
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81 | ac->IsCached.Vertex = GL_FALSE; |
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82 | ac->NewArrayState &= ~_NEW_ARRAY_VERTEX; |
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83 | } |
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84 | |||
85 | |||
86 | static void reset_normal( GLcontext *ctx ) |
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87 | { |
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88 | ACcontext *ac = AC_CONTEXT(ctx); |
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89 | |||
90 | if (ctx->Array._Enabled & _NEW_ARRAY_NORMAL) { |
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91 | ac->Raw.Normal = ctx->Array.Normal; |
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92 | STRIDE_ARRAY(ac->Raw.Normal, ac->start); |
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93 | } |
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94 | else { |
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95 | ac->Raw.Normal = ac->Fallback.Normal; |
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96 | } |
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97 | |||
98 | ac->IsCached.Normal = GL_FALSE; |
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99 | ac->NewArrayState &= ~_NEW_ARRAY_NORMAL; |
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100 | } |
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101 | |||
102 | |||
103 | static void reset_color( GLcontext *ctx ) |
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104 | { |
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105 | ACcontext *ac = AC_CONTEXT(ctx); |
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106 | |||
107 | |||
108 | if (ctx->Array._Enabled & _NEW_ARRAY_COLOR0) { |
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109 | ac->Raw.Color = ctx->Array.Color; |
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110 | STRIDE_ARRAY(ac->Raw.Color, ac->start); |
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111 | } |
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112 | else |
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113 | ac->Raw.Color = ac->Fallback.Color; |
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114 | |||
115 | ac->IsCached.Color = GL_FALSE; |
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116 | ac->NewArrayState &= ~_NEW_ARRAY_COLOR0; |
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117 | } |
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118 | |||
119 | |||
120 | static void reset_secondarycolor( GLcontext *ctx ) |
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121 | { |
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122 | ACcontext *ac = AC_CONTEXT(ctx); |
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123 | |||
124 | if (ctx->Array._Enabled & _NEW_ARRAY_COLOR1) { |
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125 | ac->Raw.SecondaryColor = ctx->Array.SecondaryColor; |
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126 | STRIDE_ARRAY(ac->Raw.SecondaryColor, ac->start); |
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127 | } |
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128 | else |
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129 | ac->Raw.SecondaryColor = ac->Fallback.SecondaryColor; |
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130 | |||
131 | ac->IsCached.SecondaryColor = GL_FALSE; |
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132 | ac->NewArrayState &= ~_NEW_ARRAY_COLOR1; |
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133 | } |
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134 | |||
135 | |||
136 | static void reset_index( GLcontext *ctx ) |
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137 | { |
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138 | ACcontext *ac = AC_CONTEXT(ctx); |
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139 | |||
140 | if (ctx->Array._Enabled & _NEW_ARRAY_INDEX) { |
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141 | ac->Raw.Index = ctx->Array.Index; |
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142 | STRIDE_ARRAY(ac->Raw.Index, ac->start); |
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143 | } |
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144 | else |
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145 | ac->Raw.Index = ac->Fallback.Index; |
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146 | |||
147 | ac->IsCached.Index = GL_FALSE; |
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148 | ac->NewArrayState &= ~_NEW_ARRAY_INDEX; |
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149 | } |
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150 | |||
151 | |||
152 | static void reset_fogcoord( GLcontext *ctx ) |
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153 | { |
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154 | ACcontext *ac = AC_CONTEXT(ctx); |
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155 | |||
156 | if (ctx->Array._Enabled & _NEW_ARRAY_FOGCOORD) { |
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157 | ac->Raw.FogCoord = ctx->Array.FogCoord; |
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158 | STRIDE_ARRAY(ac->Raw.FogCoord, ac->start); |
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159 | } |
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160 | else |
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161 | ac->Raw.FogCoord = ac->Fallback.FogCoord; |
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162 | |||
163 | ac->IsCached.FogCoord = GL_FALSE; |
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164 | ac->NewArrayState &= ~_NEW_ARRAY_FOGCOORD; |
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165 | } |
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166 | |||
167 | |||
168 | static void reset_edgeflag( GLcontext *ctx ) |
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169 | { |
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170 | ACcontext *ac = AC_CONTEXT(ctx); |
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171 | |||
172 | if (ctx->Array._Enabled & _NEW_ARRAY_EDGEFLAG) { |
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173 | ac->Raw.EdgeFlag = ctx->Array.EdgeFlag; |
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174 | STRIDE_ARRAY(ac->Raw.EdgeFlag, ac->start); |
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175 | } |
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176 | else |
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177 | ac->Raw.EdgeFlag = ac->Fallback.EdgeFlag; |
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178 | |||
179 | ac->IsCached.EdgeFlag = GL_FALSE; |
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180 | ac->NewArrayState &= ~_NEW_ARRAY_EDGEFLAG; |
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181 | } |
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182 | |||
183 | |||
184 | static void reset_attrib( GLcontext *ctx, GLuint index ) |
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185 | { |
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186 | ACcontext *ac = AC_CONTEXT(ctx); |
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187 | GLboolean fallback = GL_FALSE; |
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188 | |||
189 | /* |
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190 | * The 16 NV vertex attribute arrays have top priority. If one of those |
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191 | * is not enabled, look if a corresponding conventional array is enabled. |
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192 | * If nothing else, use the fallback (ctx->Current.Attrib) values. |
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193 | */ |
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194 | if (ctx->Array._Enabled & _NEW_ARRAY_ATTRIB(index)) { |
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195 | ac->Raw.Attrib[index] = ctx->Array.VertexAttrib[index]; |
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196 | STRIDE_ARRAY(ac->Raw.Attrib[index], ac->start); |
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197 | } |
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198 | else if (ctx->Array._Enabled & (1 << index)) { |
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199 | /* use conventional vertex array if possible */ |
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200 | if (index == VERT_ATTRIB_POS) { |
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201 | ac->Raw.Attrib[index] = ctx->Array.Vertex; |
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202 | } |
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203 | else if (index == VERT_ATTRIB_NORMAL) { |
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204 | ac->Raw.Attrib[index] = ctx->Array.Normal; |
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205 | } |
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206 | else if (index == VERT_ATTRIB_COLOR0) { |
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207 | ac->Raw.Attrib[index] = ctx->Array.Color; |
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208 | } |
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209 | else if (index == VERT_ATTRIB_COLOR1) { |
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210 | ac->Raw.Attrib[index] = ctx->Array.SecondaryColor; |
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211 | } |
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212 | else if (index == VERT_ATTRIB_FOG) { |
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213 | ac->Raw.Attrib[index] = ctx->Array.FogCoord; |
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214 | } |
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215 | else if (index >= VERT_ATTRIB_TEX0 && index <= VERT_ATTRIB_TEX7) { |
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216 | GLuint unit = index - VERT_ATTRIB_TEX0; |
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217 | ASSERT(unit < MAX_TEXTURE_UNITS); |
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218 | ac->Raw.Attrib[index] = ctx->Array.TexCoord[unit]; |
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219 | } |
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220 | else { |
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221 | /* missing conventional array (vertex weight, for example) */ |
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222 | fallback = GL_TRUE; |
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223 | } |
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224 | if (!fallback) |
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225 | STRIDE_ARRAY(ac->Raw.Attrib[index], ac->start); |
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226 | } |
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227 | else { |
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228 | fallback = GL_TRUE; |
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229 | } |
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230 | |||
231 | if (fallback) { |
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232 | /* fallback to ctx->Current.Attrib values */ |
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233 | ac->Raw.Attrib[index] = ac->Fallback.Attrib[index]; |
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234 | |||
235 | if (ctx->Current.Attrib[index][3] != 1.0) |
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236 | ac->Raw.Attrib[index].Size = 4; |
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237 | else if (ctx->Current.Attrib[index][2] != 0.0) |
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238 | ac->Raw.Attrib[index].Size = 3; |
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239 | else |
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240 | ac->Raw.Attrib[index].Size = 2; |
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241 | } |
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242 | |||
243 | ac->IsCached.Attrib[index] = GL_FALSE; |
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244 | ac->NewArrayState &= ~_NEW_ARRAY_ATTRIB(index); |
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245 | } |
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246 | |||
247 | |||
248 | /* |
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249 | * Generic import function for color data |
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250 | */ |
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251 | static void import( GLcontext *ctx, |
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252 | GLenum type, |
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253 | struct gl_client_array *to, |
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254 | struct gl_client_array *from ) |
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255 | { |
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256 | ACcontext *ac = AC_CONTEXT(ctx); |
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257 | |||
258 | if (type == 0) |
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259 | type = from->Type; |
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260 | |||
261 | switch (type) { |
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262 | case GL_FLOAT: |
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263 | _math_trans_4f( (GLfloat (*)[4]) to->Ptr, |
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264 | from->Ptr, |
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265 | from->StrideB, |
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266 | from->Type, |
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267 | from->Size, |
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268 | 0, |
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269 | ac->count - ac->start); |
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270 | |||
271 | to->StrideB = 4 * sizeof(GLfloat); |
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272 | to->Type = GL_FLOAT; |
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273 | break; |
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274 | |||
275 | case GL_UNSIGNED_BYTE: |
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276 | _math_trans_4ub( (GLubyte (*)[4]) to->Ptr, |
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277 | from->Ptr, |
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278 | from->StrideB, |
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279 | from->Type, |
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280 | from->Size, |
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281 | 0, |
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282 | ac->count - ac->start); |
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283 | |||
284 | to->StrideB = 4 * sizeof(GLubyte); |
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285 | to->Type = GL_UNSIGNED_BYTE; |
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286 | break; |
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287 | |||
288 | case GL_UNSIGNED_SHORT: |
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289 | _math_trans_4us( (GLushort (*)[4]) to->Ptr, |
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290 | from->Ptr, |
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291 | from->StrideB, |
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292 | from->Type, |
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293 | from->Size, |
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294 | 0, |
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295 | ac->count - ac->start); |
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296 | |||
297 | to->StrideB = 4 * sizeof(GLushort); |
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298 | to->Type = GL_UNSIGNED_SHORT; |
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299 | break; |
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300 | |||
301 | default: |
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302 | ASSERT(0); |
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303 | break; |
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304 | } |
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305 | } |
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306 | |||
307 | |||
308 | |||
309 | /* |
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310 | * Functions to import array ranges with specified types and strides. |
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311 | * For example, if the vertex data is GLshort[2] and we want GLfloat[3] |
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312 | * we'll use an import function to do the data conversion. |
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313 | */ |
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314 | |||
315 | static void import_texcoord( GLcontext *ctx, GLuint unit, |
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316 | GLenum type, GLuint stride ) |
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317 | { |
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318 | ACcontext *ac = AC_CONTEXT(ctx); |
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319 | struct gl_client_array *from = &ac->Raw.TexCoord[unit]; |
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320 | struct gl_client_array *to = &ac->Cache.TexCoord[unit]; |
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321 | |||
322 | ASSERT(unit < ctx->Const.MaxTextureUnits); |
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323 | |||
324 | /* Limited choices at this stage: |
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325 | */ |
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326 | ASSERT(type == GL_FLOAT); |
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327 | ASSERT(stride == 4*sizeof(GLfloat) || stride == 0); |
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328 | ASSERT(ac->count - ac->start < ctx->Const.MaxArrayLockSize); |
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329 | |||
330 | _math_trans_4f( (GLfloat (*)[4]) to->Ptr, |
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331 | from->Ptr, |
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332 | from->StrideB, |
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333 | from->Type, |
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334 | from->Size, |
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335 | 0, |
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336 | ac->count - ac->start); |
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337 | |||
338 | to->Size = from->Size; |
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339 | to->StrideB = 4 * sizeof(GLfloat); |
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340 | to->Type = GL_FLOAT; |
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341 | ac->IsCached.TexCoord[unit] = GL_TRUE; |
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342 | } |
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343 | |||
344 | static void import_vertex( GLcontext *ctx, |
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345 | GLenum type, GLuint stride ) |
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346 | { |
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347 | ACcontext *ac = AC_CONTEXT(ctx); |
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348 | struct gl_client_array *from = &ac->Raw.Vertex; |
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349 | struct gl_client_array *to = &ac->Cache.Vertex; |
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350 | |||
351 | /* Limited choices at this stage: |
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352 | */ |
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353 | ASSERT(type == GL_FLOAT); |
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354 | ASSERT(stride == 4*sizeof(GLfloat) || stride == 0); |
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355 | |||
356 | _math_trans_4f( (GLfloat (*)[4]) to->Ptr, |
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357 | from->Ptr, |
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358 | from->StrideB, |
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359 | from->Type, |
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360 | from->Size, |
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361 | 0, |
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362 | ac->count - ac->start); |
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363 | |||
364 | to->Size = from->Size; |
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365 | to->StrideB = 4 * sizeof(GLfloat); |
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366 | to->Type = GL_FLOAT; |
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367 | ac->IsCached.Vertex = GL_TRUE; |
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368 | } |
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369 | |||
370 | static void import_normal( GLcontext *ctx, |
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371 | GLenum type, GLuint stride ) |
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372 | { |
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373 | ACcontext *ac = AC_CONTEXT(ctx); |
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374 | struct gl_client_array *from = &ac->Raw.Normal; |
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375 | struct gl_client_array *to = &ac->Cache.Normal; |
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376 | |||
377 | /* Limited choices at this stage: |
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378 | */ |
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379 | ASSERT(type == GL_FLOAT); |
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380 | ASSERT(stride == 3*sizeof(GLfloat) || stride == 0); |
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381 | |||
382 | _math_trans_3f( (GLfloat (*)[3]) to->Ptr, |
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383 | from->Ptr, |
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384 | from->StrideB, |
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385 | from->Type, |
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386 | 0, |
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387 | ac->count - ac->start); |
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388 | |||
389 | to->StrideB = 3 * sizeof(GLfloat); |
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390 | to->Type = GL_FLOAT; |
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391 | ac->IsCached.Normal = GL_TRUE; |
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392 | } |
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393 | |||
394 | static void import_color( GLcontext *ctx, |
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395 | GLenum type, GLuint stride ) |
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396 | { |
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397 | ACcontext *ac = AC_CONTEXT(ctx); |
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398 | struct gl_client_array *from = &ac->Raw.Color; |
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399 | struct gl_client_array *to = &ac->Cache.Color; |
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400 | |||
401 | import( ctx, type, to, from ); |
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402 | |||
403 | ac->IsCached.Color = GL_TRUE; |
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404 | } |
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405 | |||
406 | static void import_index( GLcontext *ctx, |
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407 | GLenum type, GLuint stride ) |
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408 | { |
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409 | ACcontext *ac = AC_CONTEXT(ctx); |
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410 | struct gl_client_array *from = &ac->Raw.Index; |
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411 | struct gl_client_array *to = &ac->Cache.Index; |
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412 | |||
413 | /* Limited choices at this stage: |
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414 | */ |
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415 | ASSERT(type == GL_UNSIGNED_INT); |
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416 | ASSERT(stride == sizeof(GLuint) || stride == 0); |
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417 | |||
418 | _math_trans_1ui( (GLuint *) to->Ptr, |
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419 | from->Ptr, |
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420 | from->StrideB, |
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421 | from->Type, |
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422 | 0, |
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423 | ac->count - ac->start); |
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424 | |||
425 | to->StrideB = sizeof(GLuint); |
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426 | to->Type = GL_UNSIGNED_INT; |
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427 | ac->IsCached.Index = GL_TRUE; |
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428 | } |
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429 | |||
430 | static void import_secondarycolor( GLcontext *ctx, |
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431 | GLenum type, GLuint stride ) |
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432 | { |
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433 | ACcontext *ac = AC_CONTEXT(ctx); |
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434 | struct gl_client_array *from = &ac->Raw.SecondaryColor; |
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435 | struct gl_client_array *to = &ac->Cache.SecondaryColor; |
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436 | |||
437 | import( ctx, type, to, from ); |
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438 | |||
439 | ac->IsCached.SecondaryColor = GL_TRUE; |
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440 | } |
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441 | |||
442 | static void import_fogcoord( GLcontext *ctx, |
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443 | GLenum type, GLuint stride ) |
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444 | { |
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445 | ACcontext *ac = AC_CONTEXT(ctx); |
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446 | struct gl_client_array *from = &ac->Raw.FogCoord; |
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447 | struct gl_client_array *to = &ac->Cache.FogCoord; |
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448 | |||
449 | /* Limited choices at this stage: |
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450 | */ |
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451 | ASSERT(type == GL_FLOAT); |
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452 | ASSERT(stride == sizeof(GLfloat) || stride == 0); |
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453 | |||
454 | _math_trans_1f( (GLfloat *) to->Ptr, |
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455 | from->Ptr, |
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456 | from->StrideB, |
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457 | from->Type, |
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458 | 0, |
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459 | ac->count - ac->start); |
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460 | |||
461 | to->StrideB = sizeof(GLfloat); |
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462 | to->Type = GL_FLOAT; |
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463 | ac->IsCached.FogCoord = GL_TRUE; |
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464 | } |
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465 | |||
466 | static void import_edgeflag( GLcontext *ctx, |
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467 | GLenum type, GLuint stride ) |
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468 | { |
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469 | ACcontext *ac = AC_CONTEXT(ctx); |
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470 | struct gl_client_array *from = &ac->Raw.EdgeFlag; |
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471 | struct gl_client_array *to = &ac->Cache.EdgeFlag; |
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472 | |||
473 | /* Limited choices at this stage: |
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474 | */ |
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475 | ASSERT(type == GL_UNSIGNED_BYTE); |
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476 | ASSERT(stride == sizeof(GLubyte) || stride == 0); |
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477 | |||
478 | _math_trans_1ub( (GLubyte *) to->Ptr, |
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479 | from->Ptr, |
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480 | from->StrideB, |
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481 | from->Type, |
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482 | 0, |
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483 | ac->count - ac->start); |
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484 | |||
485 | to->StrideB = sizeof(GLubyte); |
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486 | to->Type = GL_UNSIGNED_BYTE; |
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487 | ac->IsCached.EdgeFlag = GL_TRUE; |
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488 | } |
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489 | |||
490 | static void import_attrib( GLcontext *ctx, GLuint index, |
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491 | GLenum type, GLuint stride ) |
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492 | { |
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493 | ACcontext *ac = AC_CONTEXT(ctx); |
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494 | struct gl_client_array *from = &ac->Raw.Attrib[index]; |
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495 | struct gl_client_array *to = &ac->Cache.Attrib[index]; |
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496 | |||
497 | ASSERT(index < VERT_ATTRIB_MAX); |
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498 | |||
499 | /* Limited choices at this stage: |
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500 | */ |
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501 | ASSERT(type == GL_FLOAT); |
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502 | ASSERT(stride == 4*sizeof(GLfloat) || stride == 0); |
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503 | ASSERT(ac->count - ac->start < ctx->Const.MaxArrayLockSize); |
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504 | |||
505 | _math_trans_4f( (GLfloat (*)[4]) to->Ptr, |
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506 | from->Ptr, |
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507 | from->StrideB, |
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508 | from->Type, |
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509 | from->Size, |
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510 | 0, |
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511 | ac->count - ac->start); |
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512 | |||
513 | to->Size = from->Size; |
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514 | to->StrideB = 4 * sizeof(GLfloat); |
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515 | to->Type = GL_FLOAT; |
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516 | ac->IsCached.Attrib[index] = GL_TRUE; |
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517 | } |
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518 | |||
519 | |||
520 | |||
521 | /* |
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522 | * Externals to request arrays with specific properties: |
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523 | */ |
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524 | |||
525 | |||
526 | struct gl_client_array *_ac_import_texcoord( GLcontext *ctx, |
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527 | GLuint unit, |
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528 | GLenum type, |
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529 | GLuint reqstride, |
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530 | GLuint reqsize, |
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531 | GLboolean reqwriteable, |
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532 | GLboolean *writeable ) |
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533 | { |
||
534 | ACcontext *ac = AC_CONTEXT(ctx); |
||
535 | |||
536 | ASSERT(unit < ctx->Const.MaxTextureUnits); |
||
537 | |||
538 | /* Can we keep the existing version? |
||
539 | */ |
||
540 | if (ac->NewArrayState & _NEW_ARRAY_TEXCOORD(unit)) |
||
541 | reset_texcoord( ctx, unit ); |
||
542 | |||
543 | /* Is the request impossible? |
||
544 | */ |
||
545 | if (reqsize != 0 && ac->Raw.TexCoord[unit].Size > (GLint) reqsize) |
||
546 | return 0; |
||
547 | |||
548 | /* Do we need to pull in a copy of the client data: |
||
549 | */ |
||
550 | if (ac->Raw.TexCoord[unit].Type != type || |
||
551 | (reqstride != 0 && ac->Raw.TexCoord[unit].StrideB != (GLint)reqstride) || |
||
552 | reqwriteable) |
||
553 | { |
||
554 | if (!ac->IsCached.TexCoord[unit]) |
||
555 | import_texcoord(ctx, unit, type, reqstride ); |
||
556 | *writeable = GL_TRUE; |
||
557 | return &ac->Cache.TexCoord[unit]; |
||
558 | } |
||
559 | else { |
||
560 | *writeable = GL_FALSE; |
||
561 | return &ac->Raw.TexCoord[unit]; |
||
562 | } |
||
563 | } |
||
564 | |||
565 | struct gl_client_array *_ac_import_vertex( GLcontext *ctx, |
||
566 | GLenum type, |
||
567 | GLuint reqstride, |
||
568 | GLuint reqsize, |
||
569 | GLboolean reqwriteable, |
||
570 | GLboolean *writeable ) |
||
571 | { |
||
572 | ACcontext *ac = AC_CONTEXT(ctx); |
||
573 | |||
574 | /* Can we keep the existing version? |
||
575 | */ |
||
576 | if (ac->NewArrayState & _NEW_ARRAY_VERTEX) |
||
577 | reset_vertex( ctx ); |
||
578 | |||
579 | /* Is the request impossible? |
||
580 | */ |
||
581 | if (reqsize != 0 && ac->Raw.Vertex.Size > (GLint) reqsize) |
||
582 | return 0; |
||
583 | |||
584 | /* Do we need to pull in a copy of the client data: |
||
585 | */ |
||
586 | if (ac->Raw.Vertex.Type != type || |
||
587 | (reqstride != 0 && ac->Raw.Vertex.StrideB != (GLint) reqstride) || |
||
588 | reqwriteable) |
||
589 | { |
||
590 | if (!ac->IsCached.Vertex) |
||
591 | import_vertex(ctx, type, reqstride ); |
||
592 | *writeable = GL_TRUE; |
||
593 | return &ac->Cache.Vertex; |
||
594 | } |
||
595 | else { |
||
596 | *writeable = GL_FALSE; |
||
597 | return &ac->Raw.Vertex; |
||
598 | } |
||
599 | } |
||
600 | |||
601 | struct gl_client_array *_ac_import_normal( GLcontext *ctx, |
||
602 | GLenum type, |
||
603 | GLuint reqstride, |
||
604 | GLboolean reqwriteable, |
||
605 | GLboolean *writeable ) |
||
606 | { |
||
607 | ACcontext *ac = AC_CONTEXT(ctx); |
||
608 | |||
609 | /* Can we keep the existing version? |
||
610 | */ |
||
611 | if (ac->NewArrayState & _NEW_ARRAY_NORMAL) |
||
612 | reset_normal( ctx ); |
||
613 | |||
614 | /* Do we need to pull in a copy of the client data: |
||
615 | */ |
||
616 | if (ac->Raw.Normal.Type != type || |
||
617 | (reqstride != 0 && ac->Raw.Normal.StrideB != (GLint) reqstride) || |
||
618 | reqwriteable) |
||
619 | { |
||
620 | if (!ac->IsCached.Normal) |
||
621 | import_normal(ctx, type, reqstride ); |
||
622 | *writeable = GL_TRUE; |
||
623 | return &ac->Cache.Normal; |
||
624 | } |
||
625 | else { |
||
626 | *writeable = GL_FALSE; |
||
627 | return &ac->Raw.Normal; |
||
628 | } |
||
629 | } |
||
630 | |||
631 | struct gl_client_array *_ac_import_color( GLcontext *ctx, |
||
632 | GLenum type, |
||
633 | GLuint reqstride, |
||
634 | GLuint reqsize, |
||
635 | GLboolean reqwriteable, |
||
636 | GLboolean *writeable ) |
||
637 | { |
||
638 | ACcontext *ac = AC_CONTEXT(ctx); |
||
639 | |||
640 | /* Can we keep the existing version? |
||
641 | */ |
||
642 | if (ac->NewArrayState & _NEW_ARRAY_COLOR0) |
||
643 | reset_color( ctx ); |
||
644 | |||
645 | /* Is the request impossible? |
||
646 | */ |
||
647 | if (reqsize != 0 && ac->Raw.Color.Size > (GLint) reqsize) { |
||
648 | return 0; |
||
649 | } |
||
650 | |||
651 | /* Do we need to pull in a copy of the client data: |
||
652 | */ |
||
653 | if ((type != 0 && ac->Raw.Color.Type != type) || |
||
654 | (reqstride != 0 && ac->Raw.Color.StrideB != (GLint) reqstride) || |
||
655 | reqwriteable) |
||
656 | { |
||
657 | if (!ac->IsCached.Color) |
||
658 | import_color(ctx, type, reqstride ); |
||
659 | *writeable = GL_TRUE; |
||
660 | return &ac->Cache.Color; |
||
661 | } |
||
662 | else { |
||
663 | *writeable = GL_FALSE; |
||
664 | return &ac->Raw.Color; |
||
665 | } |
||
666 | } |
||
667 | |||
668 | struct gl_client_array *_ac_import_index( GLcontext *ctx, |
||
669 | GLenum type, |
||
670 | GLuint reqstride, |
||
671 | GLboolean reqwriteable, |
||
672 | GLboolean *writeable ) |
||
673 | { |
||
674 | ACcontext *ac = AC_CONTEXT(ctx); |
||
675 | |||
676 | /* Can we keep the existing version? |
||
677 | */ |
||
678 | if (ac->NewArrayState & _NEW_ARRAY_INDEX) |
||
679 | reset_index( ctx ); |
||
680 | |||
681 | |||
682 | /* Do we need to pull in a copy of the client data: |
||
683 | */ |
||
684 | if (ac->Raw.Index.Type != type || |
||
685 | (reqstride != 0 && ac->Raw.Index.StrideB != (GLint) reqstride) || |
||
686 | reqwriteable) |
||
687 | { |
||
688 | if (!ac->IsCached.Index) |
||
689 | import_index(ctx, type, reqstride ); |
||
690 | *writeable = GL_TRUE; |
||
691 | return &ac->Cache.Index; |
||
692 | } |
||
693 | else { |
||
694 | *writeable = GL_FALSE; |
||
695 | return &ac->Raw.Index; |
||
696 | } |
||
697 | } |
||
698 | |||
699 | struct gl_client_array *_ac_import_secondarycolor( GLcontext *ctx, |
||
700 | GLenum type, |
||
701 | GLuint reqstride, |
||
702 | GLuint reqsize, |
||
703 | GLboolean reqwriteable, |
||
704 | GLboolean *writeable ) |
||
705 | { |
||
706 | ACcontext *ac = AC_CONTEXT(ctx); |
||
707 | |||
708 | /* Can we keep the existing version? |
||
709 | */ |
||
710 | if (ac->NewArrayState & _NEW_ARRAY_COLOR1) |
||
711 | reset_secondarycolor( ctx ); |
||
712 | |||
713 | /* Is the request impossible? |
||
714 | */ |
||
715 | if (reqsize != 0 && ac->Raw.SecondaryColor.Size > (GLint) reqsize) |
||
716 | return 0; |
||
717 | |||
718 | /* Do we need to pull in a copy of the client data: |
||
719 | */ |
||
720 | if ((type != 0 && ac->Raw.SecondaryColor.Type != type) || |
||
721 | (reqstride != 0 && ac->Raw.SecondaryColor.StrideB != (GLint)reqstride) || |
||
722 | reqwriteable) |
||
723 | { |
||
724 | if (!ac->IsCached.SecondaryColor) |
||
725 | import_secondarycolor(ctx, type, reqstride ); |
||
726 | *writeable = GL_TRUE; |
||
727 | return &ac->Cache.SecondaryColor; |
||
728 | } |
||
729 | else { |
||
730 | *writeable = GL_FALSE; |
||
731 | return &ac->Raw.SecondaryColor; |
||
732 | } |
||
733 | } |
||
734 | |||
735 | struct gl_client_array *_ac_import_fogcoord( GLcontext *ctx, |
||
736 | GLenum type, |
||
737 | GLuint reqstride, |
||
738 | GLboolean reqwriteable, |
||
739 | GLboolean *writeable ) |
||
740 | { |
||
741 | ACcontext *ac = AC_CONTEXT(ctx); |
||
742 | |||
743 | /* Can we keep the existing version? |
||
744 | */ |
||
745 | if (ac->NewArrayState & _NEW_ARRAY_FOGCOORD) |
||
746 | reset_fogcoord( ctx ); |
||
747 | |||
748 | /* Do we need to pull in a copy of the client data: |
||
749 | */ |
||
750 | if (ac->Raw.FogCoord.Type != type || |
||
751 | (reqstride != 0 && ac->Raw.FogCoord.StrideB != (GLint) reqstride) || |
||
752 | reqwriteable) |
||
753 | { |
||
754 | if (!ac->IsCached.FogCoord) |
||
755 | import_fogcoord(ctx, type, reqstride ); |
||
756 | *writeable = GL_TRUE; |
||
757 | return &ac->Cache.FogCoord; |
||
758 | } |
||
759 | else { |
||
760 | *writeable = GL_FALSE; |
||
761 | return &ac->Raw.FogCoord; |
||
762 | } |
||
763 | } |
||
764 | |||
765 | struct gl_client_array *_ac_import_edgeflag( GLcontext *ctx, |
||
766 | GLenum type, |
||
767 | GLuint reqstride, |
||
768 | GLboolean reqwriteable, |
||
769 | GLboolean *writeable ) |
||
770 | { |
||
771 | ACcontext *ac = AC_CONTEXT(ctx); |
||
772 | |||
773 | /* Can we keep the existing version? |
||
774 | */ |
||
775 | if (ac->NewArrayState & _NEW_ARRAY_EDGEFLAG) |
||
776 | reset_edgeflag( ctx ); |
||
777 | |||
778 | /* Do we need to pull in a copy of the client data: |
||
779 | */ |
||
780 | if (ac->Raw.EdgeFlag.Type != type || |
||
781 | (reqstride != 0 && ac->Raw.EdgeFlag.StrideB != (GLint) reqstride) || |
||
782 | reqwriteable) |
||
783 | { |
||
784 | if (!ac->IsCached.EdgeFlag) |
||
785 | import_edgeflag(ctx, type, reqstride ); |
||
786 | *writeable = GL_TRUE; |
||
787 | return &ac->Cache.EdgeFlag; |
||
788 | } |
||
789 | else { |
||
790 | *writeable = GL_FALSE; |
||
791 | return &ac->Raw.EdgeFlag; |
||
792 | } |
||
793 | } |
||
794 | |||
795 | /* GL_NV_vertex_program */ |
||
796 | struct gl_client_array *_ac_import_attrib( GLcontext *ctx, |
||
797 | GLuint index, |
||
798 | GLenum type, |
||
799 | GLuint reqstride, |
||
800 | GLuint reqsize, |
||
801 | GLboolean reqwriteable, |
||
802 | GLboolean *writeable ) |
||
803 | { |
||
804 | ACcontext *ac = AC_CONTEXT(ctx); |
||
805 | |||
806 | ASSERT(index < VERT_ATTRIB_MAX); |
||
807 | |||
808 | /* Can we keep the existing version? |
||
809 | */ |
||
810 | if (ac->NewArrayState & _NEW_ARRAY_ATTRIB(index)) { |
||
811 | reset_attrib( ctx, index ); |
||
812 | } |
||
813 | else if (ac->NewArrayState & (1 << index)) { |
||
814 | /* Also need to check conventional attributes */ |
||
815 | reset_attrib( ctx, index ); |
||
816 | } |
||
817 | |||
818 | /* Is the request impossible? |
||
819 | */ |
||
820 | if (reqsize != 0 && ac->Raw.Attrib[index].Size > (GLint) reqsize) |
||
821 | return NULL; |
||
822 | |||
823 | /* Do we need to pull in a copy of the client data: |
||
824 | */ |
||
825 | if (ac->Raw.Attrib[index].Type != type || |
||
826 | (reqstride != 0 && ac->Raw.Attrib[index].StrideB != (GLint)reqstride) || |
||
827 | reqwriteable) |
||
828 | { |
||
829 | if (!ac->IsCached.Attrib[index]) |
||
830 | import_attrib(ctx, index, type, reqstride ); |
||
831 | *writeable = GL_TRUE; |
||
832 | return &ac->Cache.Attrib[index]; |
||
833 | } |
||
834 | else { |
||
835 | *writeable = GL_FALSE; |
||
836 | return &ac->Raw.Attrib[index]; |
||
837 | } |
||
838 | } |
||
839 | |||
840 | |||
841 | /* Clients must call this function to validate state and set bounds |
||
842 | * before importing any data: |
||
843 | */ |
||
844 | void _ac_import_range( GLcontext *ctx, GLuint start, GLuint count ) |
||
845 | { |
||
846 | ACcontext *ac = AC_CONTEXT(ctx); |
||
847 | |||
848 | if (!ctx->Array.LockCount) { |
||
849 | /* Not locked, discard cached data. Changes to lock |
||
850 | * status are caught via. _ac_invalidate_state(). |
||
851 | */ |
||
852 | ac->NewArrayState = _NEW_ARRAY_ALL; |
||
853 | ac->start = start; |
||
854 | ac->count = count; |
||
855 | } |
||
856 | else { |
||
857 | /* Locked, discard data for any disabled arrays. Require that |
||
858 | * the whole locked range always be dealt with, otherwise hard to |
||
859 | * maintain cached data in the face of clipping. |
||
860 | */ |
||
861 | ac->NewArrayState |= ~ctx->Array._Enabled; |
||
862 | ac->start = ctx->Array.LockFirst; |
||
863 | ac->count = ctx->Array.LockCount; |
||
864 | ASSERT(ac->start == start); /* hmm? */ |
||
865 | ASSERT(ac->count == count); |
||
866 | } |
||
867 | } |
||
868 | |||
869 | |||
870 | |||
871 | /* Additional convienence function for importing the element list |
||
872 | * for glDrawElements() and glDrawRangeElements(). |
||
873 | */ |
||
874 | CONST void * |
||
875 | _ac_import_elements( GLcontext *ctx, |
||
876 | GLenum new_type, |
||
877 | GLuint count, |
||
878 | GLenum old_type, |
||
879 | CONST void *indices ) |
||
880 | { |
||
881 | ACcontext *ac = AC_CONTEXT(ctx); |
||
882 | |||
883 | if (old_type == new_type) |
||
884 | return indices; |
||
885 | |||
886 | if (ac->elt_size < count * sizeof(GLuint)) { |
||
887 | if (ac->Elts) FREE(ac->Elts); |
||
888 | while (ac->elt_size < count * sizeof(GLuint)) |
||
889 | ac->elt_size *= 2; |
||
890 | ac->Elts = (GLuint *) MALLOC(ac->elt_size); |
||
891 | } |
||
892 | |||
893 | switch (new_type) { |
||
894 | case GL_UNSIGNED_BYTE: |
||
895 | ASSERT(0); |
||
896 | return 0; |
||
897 | case GL_UNSIGNED_SHORT: |
||
898 | ASSERT(0); |
||
899 | return 0; |
||
900 | case GL_UNSIGNED_INT: { |
||
901 | GLuint *out = (GLuint *)ac->Elts; |
||
902 | GLuint i; |
||
903 | |||
904 | switch (old_type) { |
||
905 | case GL_UNSIGNED_BYTE: { |
||
906 | CONST GLubyte *in = (CONST GLubyte *)indices; |
||
907 | for (i = 0 ; i < count ; i++) |
||
908 | out[i] = in[i]; |
||
909 | break; |
||
910 | } |
||
911 | case GL_UNSIGNED_SHORT: { |
||
912 | CONST GLushort *in = (CONST GLushort *)indices; |
||
913 | for (i = 0 ; i < count ; i++) |
||
914 | out[i] = in[i]; |
||
915 | break; |
||
916 | } |
||
917 | default: |
||
918 | ASSERT(0); |
||
919 | } |
||
920 | |||
921 | return (CONST void *)out; |
||
922 | } |
||
923 | default: |
||
924 | ASSERT(0); |
||
925 | break; |
||
926 | } |
||
927 | |||
928 | return 0; |
||
929 | } |