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1901 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * Version: 6.5.3 |
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4 | * |
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5 | * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
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6 | * |
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7 | * Permission is hereby granted, free of charge, to any person obtaining a |
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8 | * copy of this software and associated documentation files (the "Software"), |
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9 | * to deal in the Software without restriction, including without limitation |
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10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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11 | * and/or sell copies of the Software, and to permit persons to whom the |
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12 | * Software is furnished to do so, subject to the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice shall be included |
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15 | * in all copies or substantial portions of the Software. |
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16 | * |
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17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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23 | */ |
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24 | |||
25 | /** |
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26 | * \file program.c |
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27 | * Vertex and fragment program support functions. |
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28 | * \author Brian Paul |
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29 | */ |
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30 | |||
31 | |||
32 | #include "main/glheader.h" |
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33 | #include "main/context.h" |
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34 | #include "main/hash.h" |
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35 | #include "program.h" |
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36 | #include "prog_cache.h" |
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37 | #include "prog_parameter.h" |
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38 | #include "prog_instruction.h" |
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39 | |||
40 | |||
41 | /** |
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42 | * A pointer to this dummy program is put into the hash table when |
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43 | * glGenPrograms is called. |
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44 | */ |
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45 | struct gl_program _mesa_DummyProgram; |
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46 | |||
47 | |||
48 | /** |
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49 | * Init context's vertex/fragment program state |
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50 | */ |
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51 | void |
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52 | _mesa_init_program(struct gl_context *ctx) |
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53 | { |
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54 | GLuint i; |
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55 | |||
56 | /* |
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57 | * If this assertion fails, we need to increase the field |
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58 | * size for register indexes (see INST_INDEX_BITS). |
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59 | */ |
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60 | ASSERT(ctx->Const.VertexProgram.MaxUniformComponents / 4 |
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61 | <= (1 << INST_INDEX_BITS)); |
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62 | ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents / 4 |
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63 | <= (1 << INST_INDEX_BITS)); |
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64 | |||
65 | ASSERT(ctx->Const.VertexProgram.MaxTemps <= (1 << INST_INDEX_BITS)); |
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66 | ASSERT(ctx->Const.VertexProgram.MaxLocalParams <= (1 << INST_INDEX_BITS)); |
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67 | ASSERT(ctx->Const.FragmentProgram.MaxTemps <= (1 << INST_INDEX_BITS)); |
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68 | ASSERT(ctx->Const.FragmentProgram.MaxLocalParams <= (1 << INST_INDEX_BITS)); |
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69 | |||
70 | ASSERT(ctx->Const.VertexProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS); |
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71 | ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS); |
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72 | |||
73 | /* If this fails, increase prog_instruction::TexSrcUnit size */ |
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74 | ASSERT(MAX_TEXTURE_UNITS < (1 << 5)); |
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75 | |||
76 | /* If this fails, increase prog_instruction::TexSrcTarget size */ |
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77 | ASSERT(NUM_TEXTURE_TARGETS < (1 << 3)); |
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78 | |||
79 | ctx->Program.ErrorPos = -1; |
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80 | ctx->Program.ErrorString = _mesa_strdup(""); |
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81 | |||
82 | #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
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83 | ctx->VertexProgram.Enabled = GL_FALSE; |
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84 | #if FEATURE_es2_glsl |
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85 | ctx->VertexProgram.PointSizeEnabled = |
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86 | (ctx->API == API_OPENGLES2) ? GL_TRUE : GL_FALSE; |
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87 | #else |
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88 | ctx->VertexProgram.PointSizeEnabled = GL_FALSE; |
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89 | #endif |
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90 | ctx->VertexProgram.TwoSideEnabled = GL_FALSE; |
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91 | _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, |
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92 | ctx->Shared->DefaultVertexProgram); |
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93 | assert(ctx->VertexProgram.Current); |
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94 | for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) { |
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95 | ctx->VertexProgram.TrackMatrix[i] = GL_NONE; |
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96 | ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV; |
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97 | } |
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98 | ctx->VertexProgram.Cache = _mesa_new_program_cache(); |
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99 | #endif |
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100 | |||
101 | #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program |
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102 | ctx->FragmentProgram.Enabled = GL_FALSE; |
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103 | _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, |
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104 | ctx->Shared->DefaultFragmentProgram); |
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105 | assert(ctx->FragmentProgram.Current); |
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106 | ctx->FragmentProgram.Cache = _mesa_new_program_cache(); |
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107 | #endif |
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108 | |||
109 | #if FEATURE_ARB_geometry_shader4 |
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110 | ctx->GeometryProgram.Enabled = GL_FALSE; |
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111 | /* right now by default we don't have a geometry program */ |
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112 | _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, |
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113 | NULL); |
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114 | ctx->GeometryProgram.Cache = _mesa_new_program_cache(); |
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115 | #endif |
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116 | |||
117 | /* XXX probably move this stuff */ |
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118 | #if FEATURE_ATI_fragment_shader |
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119 | ctx->ATIFragmentShader.Enabled = GL_FALSE; |
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120 | ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader; |
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121 | assert(ctx->ATIFragmentShader.Current); |
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122 | ctx->ATIFragmentShader.Current->RefCount++; |
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123 | #endif |
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124 | } |
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125 | |||
126 | |||
127 | /** |
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128 | * Free a context's vertex/fragment program state |
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129 | */ |
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130 | void |
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131 | _mesa_free_program_data(struct gl_context *ctx) |
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132 | { |
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133 | #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
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134 | _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL); |
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135 | _mesa_delete_program_cache(ctx, ctx->VertexProgram.Cache); |
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136 | #endif |
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137 | #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program |
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138 | _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL); |
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139 | _mesa_delete_program_cache(ctx, ctx->FragmentProgram.Cache); |
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140 | #endif |
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141 | #if FEATURE_ARB_geometry_shader4 |
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142 | _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL); |
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143 | _mesa_delete_program_cache(ctx, ctx->GeometryProgram.Cache); |
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144 | #endif |
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145 | /* XXX probably move this stuff */ |
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146 | #if FEATURE_ATI_fragment_shader |
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147 | if (ctx->ATIFragmentShader.Current) { |
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148 | ctx->ATIFragmentShader.Current->RefCount--; |
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149 | if (ctx->ATIFragmentShader.Current->RefCount <= 0) { |
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150 | free(ctx->ATIFragmentShader.Current); |
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151 | } |
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152 | } |
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153 | #endif |
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154 | free((void *) ctx->Program.ErrorString); |
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155 | } |
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156 | |||
157 | |||
158 | /** |
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159 | * Update the default program objects in the given context to reference those |
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160 | * specified in the shared state and release those referencing the old |
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161 | * shared state. |
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162 | */ |
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163 | void |
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164 | _mesa_update_default_objects_program(struct gl_context *ctx) |
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165 | { |
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166 | #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program |
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167 | _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, |
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168 | (struct gl_vertex_program *) |
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169 | ctx->Shared->DefaultVertexProgram); |
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170 | assert(ctx->VertexProgram.Current); |
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171 | #endif |
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172 | |||
173 | #if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program |
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174 | _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, |
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175 | (struct gl_fragment_program *) |
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176 | ctx->Shared->DefaultFragmentProgram); |
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177 | assert(ctx->FragmentProgram.Current); |
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178 | #endif |
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179 | |||
180 | #if FEATURE_ARB_geometry_shader4 |
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181 | _mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, |
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182 | (struct gl_geometry_program *) |
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183 | ctx->Shared->DefaultGeometryProgram); |
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184 | #endif |
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185 | |||
186 | /* XXX probably move this stuff */ |
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187 | #if FEATURE_ATI_fragment_shader |
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188 | if (ctx->ATIFragmentShader.Current) { |
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189 | ctx->ATIFragmentShader.Current->RefCount--; |
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190 | if (ctx->ATIFragmentShader.Current->RefCount <= 0) { |
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191 | free(ctx->ATIFragmentShader.Current); |
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192 | } |
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193 | } |
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194 | ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader; |
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195 | assert(ctx->ATIFragmentShader.Current); |
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196 | ctx->ATIFragmentShader.Current->RefCount++; |
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197 | #endif |
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198 | } |
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199 | |||
200 | |||
201 | /** |
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202 | * Set the vertex/fragment program error state (position and error string). |
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203 | * This is generally called from within the parsers. |
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204 | */ |
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205 | void |
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206 | _mesa_set_program_error(struct gl_context *ctx, GLint pos, const char *string) |
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207 | { |
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208 | ctx->Program.ErrorPos = pos; |
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209 | free((void *) ctx->Program.ErrorString); |
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210 | if (!string) |
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211 | string = ""; |
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212 | ctx->Program.ErrorString = _mesa_strdup(string); |
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213 | } |
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214 | |||
215 | |||
216 | /** |
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217 | * Find the line number and column for 'pos' within 'string'. |
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218 | * Return a copy of the line which contains 'pos'. Free the line with |
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219 | * free(). |
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220 | * \param string the program string |
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221 | * \param pos the position within the string |
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222 | * \param line returns the line number corresponding to 'pos'. |
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223 | * \param col returns the column number corresponding to 'pos'. |
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224 | * \return copy of the line containing 'pos'. |
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225 | */ |
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226 | const GLubyte * |
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227 | _mesa_find_line_column(const GLubyte *string, const GLubyte *pos, |
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228 | GLint *line, GLint *col) |
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229 | { |
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230 | const GLubyte *lineStart = string; |
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231 | const GLubyte *p = string; |
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232 | GLubyte *s; |
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233 | int len; |
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234 | |||
235 | *line = 1; |
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236 | |||
237 | while (p != pos) { |
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238 | if (*p == (GLubyte) '\n') { |
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239 | (*line)++; |
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240 | lineStart = p + 1; |
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241 | } |
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242 | p++; |
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243 | } |
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244 | |||
245 | *col = (pos - lineStart) + 1; |
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246 | |||
247 | /* return copy of this line */ |
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248 | while (*p != 0 && *p != '\n') |
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249 | p++; |
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250 | len = p - lineStart; |
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251 | s = (GLubyte *) malloc(len + 1); |
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252 | memcpy(s, lineStart, len); |
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253 | s[len] = 0; |
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254 | |||
255 | return s; |
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256 | } |
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257 | |||
258 | |||
259 | /** |
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260 | * Initialize a new vertex/fragment program object. |
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261 | */ |
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262 | static struct gl_program * |
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263 | _mesa_init_program_struct( struct gl_context *ctx, struct gl_program *prog, |
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264 | GLenum target, GLuint id) |
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265 | { |
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266 | (void) ctx; |
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267 | if (prog) { |
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268 | GLuint i; |
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269 | memset(prog, 0, sizeof(*prog)); |
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270 | prog->Id = id; |
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271 | prog->Target = target; |
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272 | prog->Resident = GL_TRUE; |
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273 | prog->RefCount = 1; |
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274 | prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB; |
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275 | |||
276 | /* default mapping from samplers to texture units */ |
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277 | for (i = 0; i < MAX_SAMPLERS; i++) |
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278 | prog->SamplerUnits[i] = i; |
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279 | } |
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280 | |||
281 | return prog; |
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282 | } |
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283 | |||
284 | |||
285 | /** |
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286 | * Initialize a new fragment program object. |
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287 | */ |
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288 | struct gl_program * |
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289 | _mesa_init_fragment_program( struct gl_context *ctx, struct gl_fragment_program *prog, |
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290 | GLenum target, GLuint id) |
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291 | { |
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292 | if (prog) |
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293 | return _mesa_init_program_struct( ctx, &prog->Base, target, id ); |
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294 | else |
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295 | return NULL; |
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296 | } |
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297 | |||
298 | |||
299 | /** |
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300 | * Initialize a new vertex program object. |
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301 | */ |
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302 | struct gl_program * |
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303 | _mesa_init_vertex_program( struct gl_context *ctx, struct gl_vertex_program *prog, |
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304 | GLenum target, GLuint id) |
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305 | { |
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306 | if (prog) |
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307 | return _mesa_init_program_struct( ctx, &prog->Base, target, id ); |
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308 | else |
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309 | return NULL; |
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310 | } |
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311 | |||
312 | |||
313 | /** |
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314 | * Initialize a new geometry program object. |
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315 | */ |
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316 | struct gl_program * |
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317 | _mesa_init_geometry_program( struct gl_context *ctx, struct gl_geometry_program *prog, |
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318 | GLenum target, GLuint id) |
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319 | { |
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320 | if (prog) |
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321 | return _mesa_init_program_struct( ctx, &prog->Base, target, id ); |
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322 | else |
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323 | return NULL; |
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324 | } |
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325 | |||
326 | |||
327 | /** |
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328 | * Allocate and initialize a new fragment/vertex program object but |
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329 | * don't put it into the program hash table. Called via |
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330 | * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a |
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331 | * device driver function to implement OO deriviation with additional |
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332 | * types not understood by this function. |
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333 | * |
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334 | * \param ctx context |
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335 | * \param id program id/number |
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336 | * \param target program target/type |
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337 | * \return pointer to new program object |
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338 | */ |
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339 | struct gl_program * |
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340 | _mesa_new_program(struct gl_context *ctx, GLenum target, GLuint id) |
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341 | { |
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342 | struct gl_program *prog; |
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343 | switch (target) { |
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344 | case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */ |
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345 | case GL_VERTEX_STATE_PROGRAM_NV: |
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346 | prog = _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program), |
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347 | target, id ); |
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348 | break; |
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349 | case GL_FRAGMENT_PROGRAM_NV: |
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350 | case GL_FRAGMENT_PROGRAM_ARB: |
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351 | prog =_mesa_init_fragment_program(ctx, |
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352 | CALLOC_STRUCT(gl_fragment_program), |
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353 | target, id ); |
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354 | break; |
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355 | case MESA_GEOMETRY_PROGRAM: |
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356 | prog = _mesa_init_geometry_program(ctx, |
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357 | CALLOC_STRUCT(gl_geometry_program), |
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358 | target, id); |
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359 | break; |
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360 | default: |
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361 | _mesa_problem(ctx, "bad target in _mesa_new_program"); |
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362 | prog = NULL; |
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363 | } |
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364 | return prog; |
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365 | } |
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366 | |||
367 | |||
368 | /** |
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369 | * Delete a program and remove it from the hash table, ignoring the |
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370 | * reference count. |
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371 | * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation) |
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372 | * by a device driver function. |
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373 | */ |
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374 | void |
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375 | _mesa_delete_program(struct gl_context *ctx, struct gl_program *prog) |
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376 | { |
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377 | (void) ctx; |
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378 | ASSERT(prog); |
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379 | ASSERT(prog->RefCount==0); |
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380 | |||
381 | if (prog == &_mesa_DummyProgram) |
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382 | return; |
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383 | |||
384 | if (prog->String) |
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385 | free(prog->String); |
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386 | |||
387 | _mesa_free_instructions(prog->Instructions, prog->NumInstructions); |
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388 | |||
389 | if (prog->Parameters) { |
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390 | _mesa_free_parameter_list(prog->Parameters); |
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391 | } |
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392 | if (prog->Varying) { |
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393 | _mesa_free_parameter_list(prog->Varying); |
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394 | } |
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395 | if (prog->Attributes) { |
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396 | _mesa_free_parameter_list(prog->Attributes); |
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397 | } |
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398 | |||
399 | free(prog); |
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400 | } |
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401 | |||
402 | |||
403 | /** |
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404 | * Return the gl_program object for a given ID. |
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405 | * Basically just a wrapper for _mesa_HashLookup() to avoid a lot of |
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406 | * casts elsewhere. |
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407 | */ |
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408 | struct gl_program * |
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409 | _mesa_lookup_program(struct gl_context *ctx, GLuint id) |
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410 | { |
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411 | if (id) |
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412 | return (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id); |
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413 | else |
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414 | return NULL; |
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415 | } |
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416 | |||
417 | |||
418 | /** |
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419 | * Reference counting for vertex/fragment programs |
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420 | */ |
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421 | void |
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422 | _mesa_reference_program(struct gl_context *ctx, |
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423 | struct gl_program **ptr, |
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424 | struct gl_program *prog) |
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425 | { |
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426 | assert(ptr); |
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427 | if (*ptr && prog) { |
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428 | /* sanity check */ |
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429 | if ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB) |
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430 | ASSERT(prog->Target == GL_VERTEX_PROGRAM_ARB); |
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431 | else if ((*ptr)->Target == GL_FRAGMENT_PROGRAM_ARB) |
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432 | ASSERT(prog->Target == GL_FRAGMENT_PROGRAM_ARB || |
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433 | prog->Target == GL_FRAGMENT_PROGRAM_NV); |
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434 | else if ((*ptr)->Target == MESA_GEOMETRY_PROGRAM) |
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435 | ASSERT(prog->Target == MESA_GEOMETRY_PROGRAM); |
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436 | } |
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437 | if (*ptr == prog) { |
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438 | return; /* no change */ |
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439 | } |
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440 | if (*ptr) { |
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441 | GLboolean deleteFlag; |
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442 | |||
443 | /*_glthread_LOCK_MUTEX((*ptr)->Mutex);*/ |
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444 | #if 0 |
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445 | printf("Program %p ID=%u Target=%s Refcount-- to %d\n", |
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446 | *ptr, (*ptr)->Id, |
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447 | ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : |
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448 | ((*ptr)->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")), |
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449 | (*ptr)->RefCount - 1); |
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450 | #endif |
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451 | ASSERT((*ptr)->RefCount > 0); |
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452 | (*ptr)->RefCount--; |
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453 | |||
454 | deleteFlag = ((*ptr)->RefCount == 0); |
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455 | /*_glthread_UNLOCK_MUTEX((*ptr)->Mutex);*/ |
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456 | |||
457 | if (deleteFlag) { |
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458 | ASSERT(ctx); |
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459 | ctx->Driver.DeleteProgram(ctx, *ptr); |
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460 | } |
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461 | |||
462 | *ptr = NULL; |
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463 | } |
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464 | |||
465 | assert(!*ptr); |
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466 | if (prog) { |
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467 | /*_glthread_LOCK_MUTEX(prog->Mutex);*/ |
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468 | prog->RefCount++; |
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469 | #if 0 |
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470 | printf("Program %p ID=%u Target=%s Refcount++ to %d\n", |
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471 | prog, prog->Id, |
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472 | (prog->Target == GL_VERTEX_PROGRAM_ARB ? "VP" : |
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473 | (prog->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")), |
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474 | prog->RefCount); |
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475 | #endif |
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476 | /*_glthread_UNLOCK_MUTEX(prog->Mutex);*/ |
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477 | } |
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478 | |||
479 | *ptr = prog; |
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480 | } |
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481 | |||
482 | |||
483 | /** |
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484 | * Return a copy of a program. |
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485 | * XXX Problem here if the program object is actually OO-derivation |
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486 | * made by a device driver. |
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487 | */ |
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488 | struct gl_program * |
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489 | _mesa_clone_program(struct gl_context *ctx, const struct gl_program *prog) |
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490 | { |
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491 | struct gl_program *clone; |
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492 | |||
493 | clone = ctx->Driver.NewProgram(ctx, prog->Target, prog->Id); |
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494 | if (!clone) |
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495 | return NULL; |
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496 | |||
497 | assert(clone->Target == prog->Target); |
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498 | assert(clone->RefCount == 1); |
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499 | |||
500 | clone->String = (GLubyte *) _mesa_strdup((char *) prog->String); |
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501 | clone->Format = prog->Format; |
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502 | clone->Instructions = _mesa_alloc_instructions(prog->NumInstructions); |
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503 | if (!clone->Instructions) { |
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504 | _mesa_reference_program(ctx, &clone, NULL); |
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505 | return NULL; |
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506 | } |
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507 | _mesa_copy_instructions(clone->Instructions, prog->Instructions, |
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508 | prog->NumInstructions); |
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509 | clone->InputsRead = prog->InputsRead; |
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510 | clone->OutputsWritten = prog->OutputsWritten; |
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511 | clone->SamplersUsed = prog->SamplersUsed; |
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512 | clone->ShadowSamplers = prog->ShadowSamplers; |
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513 | memcpy(clone->TexturesUsed, prog->TexturesUsed, sizeof(prog->TexturesUsed)); |
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514 | |||
515 | if (prog->Parameters) |
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516 | clone->Parameters = _mesa_clone_parameter_list(prog->Parameters); |
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517 | memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams)); |
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518 | if (prog->Varying) |
||
519 | clone->Varying = _mesa_clone_parameter_list(prog->Varying); |
||
520 | if (prog->Attributes) |
||
521 | clone->Attributes = _mesa_clone_parameter_list(prog->Attributes); |
||
522 | memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams)); |
||
523 | clone->IndirectRegisterFiles = prog->IndirectRegisterFiles; |
||
524 | clone->NumInstructions = prog->NumInstructions; |
||
525 | clone->NumTemporaries = prog->NumTemporaries; |
||
526 | clone->NumParameters = prog->NumParameters; |
||
527 | clone->NumAttributes = prog->NumAttributes; |
||
528 | clone->NumAddressRegs = prog->NumAddressRegs; |
||
529 | clone->NumNativeInstructions = prog->NumNativeInstructions; |
||
530 | clone->NumNativeTemporaries = prog->NumNativeTemporaries; |
||
531 | clone->NumNativeParameters = prog->NumNativeParameters; |
||
532 | clone->NumNativeAttributes = prog->NumNativeAttributes; |
||
533 | clone->NumNativeAddressRegs = prog->NumNativeAddressRegs; |
||
534 | clone->NumAluInstructions = prog->NumAluInstructions; |
||
535 | clone->NumTexInstructions = prog->NumTexInstructions; |
||
536 | clone->NumTexIndirections = prog->NumTexIndirections; |
||
537 | clone->NumNativeAluInstructions = prog->NumNativeAluInstructions; |
||
538 | clone->NumNativeTexInstructions = prog->NumNativeTexInstructions; |
||
539 | clone->NumNativeTexIndirections = prog->NumNativeTexIndirections; |
||
540 | |||
541 | switch (prog->Target) { |
||
542 | case GL_VERTEX_PROGRAM_ARB: |
||
543 | { |
||
544 | const struct gl_vertex_program *vp |
||
545 | = (const struct gl_vertex_program *) prog; |
||
546 | struct gl_vertex_program *vpc = (struct gl_vertex_program *) clone; |
||
547 | vpc->IsPositionInvariant = vp->IsPositionInvariant; |
||
548 | vpc->IsNVProgram = vp->IsNVProgram; |
||
549 | } |
||
550 | break; |
||
551 | case GL_FRAGMENT_PROGRAM_ARB: |
||
552 | { |
||
553 | const struct gl_fragment_program *fp |
||
554 | = (const struct gl_fragment_program *) prog; |
||
555 | struct gl_fragment_program *fpc = (struct gl_fragment_program *) clone; |
||
556 | fpc->FogOption = fp->FogOption; |
||
557 | fpc->UsesKill = fp->UsesKill; |
||
558 | fpc->OriginUpperLeft = fp->OriginUpperLeft; |
||
559 | fpc->PixelCenterInteger = fp->PixelCenterInteger; |
||
560 | } |
||
561 | break; |
||
562 | case MESA_GEOMETRY_PROGRAM: |
||
563 | { |
||
564 | const struct gl_geometry_program *gp |
||
565 | = (const struct gl_geometry_program *) prog; |
||
566 | struct gl_geometry_program *gpc = (struct gl_geometry_program *) clone; |
||
567 | gpc->VerticesOut = gp->VerticesOut; |
||
568 | gpc->InputType = gp->InputType; |
||
569 | gpc->OutputType = gp->OutputType; |
||
570 | } |
||
571 | break; |
||
572 | default: |
||
573 | _mesa_problem(NULL, "Unexpected target in _mesa_clone_program"); |
||
574 | } |
||
575 | |||
576 | return clone; |
||
577 | } |
||
578 | |||
579 | |||
580 | /** |
||
581 | * Insert 'count' NOP instructions at 'start' in the given program. |
||
582 | * Adjust branch targets accordingly. |
||
583 | */ |
||
584 | GLboolean |
||
585 | _mesa_insert_instructions(struct gl_program *prog, GLuint start, GLuint count) |
||
586 | { |
||
587 | const GLuint origLen = prog->NumInstructions; |
||
588 | const GLuint newLen = origLen + count; |
||
589 | struct prog_instruction *newInst; |
||
590 | GLuint i; |
||
591 | |||
592 | /* adjust branches */ |
||
593 | for (i = 0; i < prog->NumInstructions; i++) { |
||
594 | struct prog_instruction *inst = prog->Instructions + i; |
||
595 | if (inst->BranchTarget > 0) { |
||
596 | if ((GLuint)inst->BranchTarget >= start) { |
||
597 | inst->BranchTarget += count; |
||
598 | } |
||
599 | } |
||
600 | } |
||
601 | |||
602 | /* Alloc storage for new instructions */ |
||
603 | newInst = _mesa_alloc_instructions(newLen); |
||
604 | if (!newInst) { |
||
605 | return GL_FALSE; |
||
606 | } |
||
607 | |||
608 | /* Copy 'start' instructions into new instruction buffer */ |
||
609 | _mesa_copy_instructions(newInst, prog->Instructions, start); |
||
610 | |||
611 | /* init the new instructions */ |
||
612 | _mesa_init_instructions(newInst + start, count); |
||
613 | |||
614 | /* Copy the remaining/tail instructions to new inst buffer */ |
||
615 | _mesa_copy_instructions(newInst + start + count, |
||
616 | prog->Instructions + start, |
||
617 | origLen - start); |
||
618 | |||
619 | /* free old instructions */ |
||
620 | _mesa_free_instructions(prog->Instructions, origLen); |
||
621 | |||
622 | /* install new instructions */ |
||
623 | prog->Instructions = newInst; |
||
624 | prog->NumInstructions = newLen; |
||
625 | |||
626 | return GL_TRUE; |
||
627 | } |
||
628 | |||
629 | /** |
||
630 | * Delete 'count' instructions at 'start' in the given program. |
||
631 | * Adjust branch targets accordingly. |
||
632 | */ |
||
633 | GLboolean |
||
634 | _mesa_delete_instructions(struct gl_program *prog, GLuint start, GLuint count) |
||
635 | { |
||
636 | const GLuint origLen = prog->NumInstructions; |
||
637 | const GLuint newLen = origLen - count; |
||
638 | struct prog_instruction *newInst; |
||
639 | GLuint i; |
||
640 | |||
641 | /* adjust branches */ |
||
642 | for (i = 0; i < prog->NumInstructions; i++) { |
||
643 | struct prog_instruction *inst = prog->Instructions + i; |
||
644 | if (inst->BranchTarget > 0) { |
||
645 | if (inst->BranchTarget > (GLint) start) { |
||
646 | inst->BranchTarget -= count; |
||
647 | } |
||
648 | } |
||
649 | } |
||
650 | |||
651 | /* Alloc storage for new instructions */ |
||
652 | newInst = _mesa_alloc_instructions(newLen); |
||
653 | if (!newInst) { |
||
654 | return GL_FALSE; |
||
655 | } |
||
656 | |||
657 | /* Copy 'start' instructions into new instruction buffer */ |
||
658 | _mesa_copy_instructions(newInst, prog->Instructions, start); |
||
659 | |||
660 | /* Copy the remaining/tail instructions to new inst buffer */ |
||
661 | _mesa_copy_instructions(newInst + start, |
||
662 | prog->Instructions + start + count, |
||
663 | newLen - start); |
||
664 | |||
665 | /* free old instructions */ |
||
666 | _mesa_free_instructions(prog->Instructions, origLen); |
||
667 | |||
668 | /* install new instructions */ |
||
669 | prog->Instructions = newInst; |
||
670 | prog->NumInstructions = newLen; |
||
671 | |||
672 | return GL_TRUE; |
||
673 | } |
||
674 | |||
675 | |||
676 | /** |
||
677 | * Search instructions for registers that match (oldFile, oldIndex), |
||
678 | * replacing them with (newFile, newIndex). |
||
679 | */ |
||
680 | static void |
||
681 | replace_registers(struct prog_instruction *inst, GLuint numInst, |
||
682 | GLuint oldFile, GLuint oldIndex, |
||
683 | GLuint newFile, GLuint newIndex) |
||
684 | { |
||
685 | GLuint i, j; |
||
686 | for (i = 0; i < numInst; i++) { |
||
687 | /* src regs */ |
||
688 | for (j = 0; j < _mesa_num_inst_src_regs(inst[i].Opcode); j++) { |
||
689 | if (inst[i].SrcReg[j].File == oldFile && |
||
690 | inst[i].SrcReg[j].Index == oldIndex) { |
||
691 | inst[i].SrcReg[j].File = newFile; |
||
692 | inst[i].SrcReg[j].Index = newIndex; |
||
693 | } |
||
694 | } |
||
695 | /* dst reg */ |
||
696 | if (inst[i].DstReg.File == oldFile && inst[i].DstReg.Index == oldIndex) { |
||
697 | inst[i].DstReg.File = newFile; |
||
698 | inst[i].DstReg.Index = newIndex; |
||
699 | } |
||
700 | } |
||
701 | } |
||
702 | |||
703 | |||
704 | /** |
||
705 | * Search instructions for references to program parameters. When found, |
||
706 | * increment the parameter index by 'offset'. |
||
707 | * Used when combining programs. |
||
708 | */ |
||
709 | static void |
||
710 | adjust_param_indexes(struct prog_instruction *inst, GLuint numInst, |
||
711 | GLuint offset) |
||
712 | { |
||
713 | GLuint i, j; |
||
714 | for (i = 0; i < numInst; i++) { |
||
715 | for (j = 0; j < _mesa_num_inst_src_regs(inst[i].Opcode); j++) { |
||
716 | GLuint f = inst[i].SrcReg[j].File; |
||
717 | if (f == PROGRAM_CONSTANT || |
||
718 | f == PROGRAM_UNIFORM || |
||
719 | f == PROGRAM_STATE_VAR) { |
||
720 | inst[i].SrcReg[j].Index += offset; |
||
721 | } |
||
722 | } |
||
723 | } |
||
724 | } |
||
725 | |||
726 | |||
727 | /** |
||
728 | * Combine two programs into one. Fix instructions so the outputs of |
||
729 | * the first program go to the inputs of the second program. |
||
730 | */ |
||
731 | struct gl_program * |
||
732 | _mesa_combine_programs(struct gl_context *ctx, |
||
733 | const struct gl_program *progA, |
||
734 | const struct gl_program *progB) |
||
735 | { |
||
736 | struct prog_instruction *newInst; |
||
737 | struct gl_program *newProg; |
||
738 | const GLuint lenA = progA->NumInstructions - 1; /* omit END instr */ |
||
739 | const GLuint lenB = progB->NumInstructions; |
||
740 | const GLuint numParamsA = _mesa_num_parameters(progA->Parameters); |
||
741 | const GLuint newLength = lenA + lenB; |
||
742 | GLboolean usedTemps[MAX_PROGRAM_TEMPS]; |
||
743 | GLuint firstTemp = 0; |
||
744 | GLbitfield inputsB; |
||
745 | GLuint i; |
||
746 | |||
747 | ASSERT(progA->Target == progB->Target); |
||
748 | |||
749 | newInst = _mesa_alloc_instructions(newLength); |
||
750 | if (!newInst) |
||
751 | return GL_FALSE; |
||
752 | |||
753 | _mesa_copy_instructions(newInst, progA->Instructions, lenA); |
||
754 | _mesa_copy_instructions(newInst + lenA, progB->Instructions, lenB); |
||
755 | |||
756 | /* adjust branch / instruction addresses for B's instructions */ |
||
757 | for (i = 0; i < lenB; i++) { |
||
758 | newInst[lenA + i].BranchTarget += lenA; |
||
759 | } |
||
760 | |||
761 | newProg = ctx->Driver.NewProgram(ctx, progA->Target, 0); |
||
762 | newProg->Instructions = newInst; |
||
763 | newProg->NumInstructions = newLength; |
||
764 | |||
765 | /* find used temp regs (we may need new temps below) */ |
||
766 | _mesa_find_used_registers(newProg, PROGRAM_TEMPORARY, |
||
767 | usedTemps, MAX_PROGRAM_TEMPS); |
||
768 | |||
769 | if (newProg->Target == GL_FRAGMENT_PROGRAM_ARB) { |
||
770 | struct gl_fragment_program *fprogA, *fprogB, *newFprog; |
||
771 | GLbitfield progB_inputsRead = progB->InputsRead; |
||
772 | GLint progB_colorFile, progB_colorIndex; |
||
773 | |||
774 | fprogA = (struct gl_fragment_program *) progA; |
||
775 | fprogB = (struct gl_fragment_program *) progB; |
||
776 | newFprog = (struct gl_fragment_program *) newProg; |
||
777 | |||
778 | newFprog->UsesKill = fprogA->UsesKill || fprogB->UsesKill; |
||
779 | |||
780 | /* We'll do a search and replace for instances |
||
781 | * of progB_colorFile/progB_colorIndex below... |
||
782 | */ |
||
783 | progB_colorFile = PROGRAM_INPUT; |
||
784 | progB_colorIndex = FRAG_ATTRIB_COL0; |
||
785 | |||
786 | /* |
||
787 | * The fragment program may get color from a state var rather than |
||
788 | * a fragment input (vertex output) if it's constant. |
||
789 | * See the texenvprogram.c code. |
||
790 | * So, search the program's parameter list now to see if the program |
||
791 | * gets color from a state var instead of a conventional fragment |
||
792 | * input register. |
||
793 | */ |
||
794 | for (i = 0; i < progB->Parameters->NumParameters; i++) { |
||
795 | struct gl_program_parameter *p = &progB->Parameters->Parameters[i]; |
||
796 | if (p->Type == PROGRAM_STATE_VAR && |
||
797 | p->StateIndexes[0] == STATE_INTERNAL && |
||
798 | p->StateIndexes[1] == STATE_CURRENT_ATTRIB && |
||
799 | (int) p->StateIndexes[2] == (int) VERT_ATTRIB_COLOR0) { |
||
800 | progB_inputsRead |= FRAG_BIT_COL0; |
||
801 | progB_colorFile = PROGRAM_STATE_VAR; |
||
802 | progB_colorIndex = i; |
||
803 | break; |
||
804 | } |
||
805 | } |
||
806 | |||
807 | /* Connect color outputs of fprogA to color inputs of fprogB, via a |
||
808 | * new temporary register. |
||
809 | */ |
||
810 | if ((progA->OutputsWritten & (1 << FRAG_RESULT_COLOR)) && |
||
811 | (progB_inputsRead & FRAG_BIT_COL0)) { |
||
812 | GLint tempReg = _mesa_find_free_register(usedTemps, MAX_PROGRAM_TEMPS, |
||
813 | firstTemp); |
||
814 | if (tempReg < 0) { |
||
815 | _mesa_problem(ctx, "No free temp regs found in " |
||
816 | "_mesa_combine_programs(), using 31"); |
||
817 | tempReg = 31; |
||
818 | } |
||
819 | firstTemp = tempReg + 1; |
||
820 | |||
821 | /* replace writes to result.color[0] with tempReg */ |
||
822 | replace_registers(newInst, lenA, |
||
823 | PROGRAM_OUTPUT, FRAG_RESULT_COLOR, |
||
824 | PROGRAM_TEMPORARY, tempReg); |
||
825 | /* replace reads from the input color with tempReg */ |
||
826 | replace_registers(newInst + lenA, lenB, |
||
827 | progB_colorFile, progB_colorIndex, /* search for */ |
||
828 | PROGRAM_TEMPORARY, tempReg /* replace with */ ); |
||
829 | } |
||
830 | |||
831 | /* compute combined program's InputsRead */ |
||
832 | inputsB = progB_inputsRead; |
||
833 | if (progA->OutputsWritten & (1 << FRAG_RESULT_COLOR)) { |
||
834 | inputsB &= ~(1 << FRAG_ATTRIB_COL0); |
||
835 | } |
||
836 | newProg->InputsRead = progA->InputsRead | inputsB; |
||
837 | newProg->OutputsWritten = progB->OutputsWritten; |
||
838 | newProg->SamplersUsed = progA->SamplersUsed | progB->SamplersUsed; |
||
839 | } |
||
840 | else { |
||
841 | /* vertex program */ |
||
842 | assert(0); /* XXX todo */ |
||
843 | } |
||
844 | |||
845 | /* |
||
846 | * Merge parameters (uniforms, constants, etc) |
||
847 | */ |
||
848 | newProg->Parameters = _mesa_combine_parameter_lists(progA->Parameters, |
||
849 | progB->Parameters); |
||
850 | |||
851 | adjust_param_indexes(newInst + lenA, lenB, numParamsA); |
||
852 | |||
853 | |||
854 | return newProg; |
||
855 | } |
||
856 | |||
857 | |||
858 | /** |
||
859 | * Populate the 'used' array with flags indicating which registers (TEMPs, |
||
860 | * INPUTs, OUTPUTs, etc, are used by the given program. |
||
861 | * \param file type of register to scan for |
||
862 | * \param used returns true/false flags for in use / free |
||
863 | * \param usedSize size of the 'used' array |
||
864 | */ |
||
865 | void |
||
866 | _mesa_find_used_registers(const struct gl_program *prog, |
||
867 | gl_register_file file, |
||
868 | GLboolean used[], GLuint usedSize) |
||
869 | { |
||
870 | GLuint i, j; |
||
871 | |||
872 | memset(used, 0, usedSize); |
||
873 | |||
874 | for (i = 0; i < prog->NumInstructions; i++) { |
||
875 | const struct prog_instruction *inst = prog->Instructions + i; |
||
876 | const GLuint n = _mesa_num_inst_src_regs(inst->Opcode); |
||
877 | |||
878 | if (inst->DstReg.File == file) { |
||
879 | ASSERT(inst->DstReg.Index < usedSize); |
||
880 | if(inst->DstReg.Index < usedSize) |
||
881 | used[inst->DstReg.Index] = GL_TRUE; |
||
882 | } |
||
883 | |||
884 | for (j = 0; j < n; j++) { |
||
885 | if (inst->SrcReg[j].File == file) { |
||
886 | ASSERT(inst->SrcReg[j].Index < usedSize); |
||
887 | if(inst->SrcReg[j].Index < usedSize) |
||
888 | used[inst->SrcReg[j].Index] = GL_TRUE; |
||
889 | } |
||
890 | } |
||
891 | } |
||
892 | } |
||
893 | |||
894 | |||
895 | /** |
||
896 | * Scan the given 'used' register flag array for the first entry |
||
897 | * that's >= firstReg. |
||
898 | * \param used vector of flags indicating registers in use (as returned |
||
899 | * by _mesa_find_used_registers()) |
||
900 | * \param usedSize size of the 'used' array |
||
901 | * \param firstReg first register to start searching at |
||
902 | * \return index of unused register, or -1 if none. |
||
903 | */ |
||
904 | GLint |
||
905 | _mesa_find_free_register(const GLboolean used[], |
||
906 | GLuint usedSize, GLuint firstReg) |
||
907 | { |
||
908 | GLuint i; |
||
909 | |||
910 | assert(firstReg < usedSize); |
||
911 | |||
912 | for (i = firstReg; i < usedSize; i++) |
||
913 | if (!used[i]) |
||
914 | return i; |
||
915 | |||
916 | return -1; |
||
917 | } |
||
918 | |||
919 | |||
920 | |||
921 | /** |
||
922 | * Check if the given register index is valid (doesn't exceed implementation- |
||
923 | * dependent limits). |
||
924 | * \return GL_TRUE if OK, GL_FALSE if bad index |
||
925 | */ |
||
926 | GLboolean |
||
927 | _mesa_valid_register_index(const struct gl_context *ctx, |
||
928 | gl_shader_type shaderType, |
||
929 | gl_register_file file, GLint index) |
||
930 | { |
||
931 | const struct gl_program_constants *c; |
||
932 | |||
933 | switch (shaderType) { |
||
934 | case MESA_SHADER_VERTEX: |
||
935 | c = &ctx->Const.VertexProgram; |
||
936 | break; |
||
937 | case MESA_SHADER_FRAGMENT: |
||
938 | c = &ctx->Const.FragmentProgram; |
||
939 | break; |
||
940 | case MESA_SHADER_GEOMETRY: |
||
941 | c = &ctx->Const.GeometryProgram; |
||
942 | break; |
||
943 | default: |
||
944 | _mesa_problem(ctx, |
||
945 | "unexpected shader type in _mesa_valid_register_index()"); |
||
946 | return GL_FALSE; |
||
947 | } |
||
948 | |||
949 | switch (file) { |
||
950 | case PROGRAM_UNDEFINED: |
||
951 | return GL_TRUE; /* XXX or maybe false? */ |
||
952 | |||
953 | case PROGRAM_TEMPORARY: |
||
954 | return index >= 0 && index < c->MaxTemps; |
||
955 | |||
956 | case PROGRAM_ENV_PARAM: |
||
957 | return index >= 0 && index < c->MaxEnvParams; |
||
958 | |||
959 | case PROGRAM_LOCAL_PARAM: |
||
960 | return index >= 0 && index < c->MaxLocalParams; |
||
961 | |||
962 | case PROGRAM_NAMED_PARAM: |
||
963 | return index >= 0 && index < c->MaxParameters; |
||
964 | |||
965 | case PROGRAM_UNIFORM: |
||
966 | case PROGRAM_STATE_VAR: |
||
967 | /* aka constant buffer */ |
||
968 | return index >= 0 && index < c->MaxUniformComponents / 4; |
||
969 | |||
970 | case PROGRAM_CONSTANT: |
||
971 | /* constant buffer w/ possible relative negative addressing */ |
||
972 | return (index > (int) c->MaxUniformComponents / -4 && |
||
973 | index < c->MaxUniformComponents / 4); |
||
974 | |||
975 | case PROGRAM_INPUT: |
||
976 | if (index < 0) |
||
977 | return GL_FALSE; |
||
978 | |||
979 | switch (shaderType) { |
||
980 | case MESA_SHADER_VERTEX: |
||
981 | return index < VERT_ATTRIB_GENERIC0 + c->MaxAttribs; |
||
982 | case MESA_SHADER_FRAGMENT: |
||
983 | return index < FRAG_ATTRIB_VAR0 + ctx->Const.MaxVarying; |
||
984 | case MESA_SHADER_GEOMETRY: |
||
985 | return index < GEOM_ATTRIB_VAR0 + ctx->Const.MaxVarying; |
||
986 | default: |
||
987 | return GL_FALSE; |
||
988 | } |
||
989 | |||
990 | case PROGRAM_OUTPUT: |
||
991 | if (index < 0) |
||
992 | return GL_FALSE; |
||
993 | |||
994 | switch (shaderType) { |
||
995 | case MESA_SHADER_VERTEX: |
||
996 | return index < VERT_RESULT_VAR0 + ctx->Const.MaxVarying; |
||
997 | case MESA_SHADER_FRAGMENT: |
||
998 | return index < FRAG_RESULT_DATA0 + ctx->Const.MaxDrawBuffers; |
||
999 | case MESA_SHADER_GEOMETRY: |
||
1000 | return index < GEOM_RESULT_VAR0 + ctx->Const.MaxVarying; |
||
1001 | default: |
||
1002 | return GL_FALSE; |
||
1003 | } |
||
1004 | |||
1005 | case PROGRAM_ADDRESS: |
||
1006 | return index >= 0 && index < c->MaxAddressRegs; |
||
1007 | |||
1008 | default: |
||
1009 | _mesa_problem(ctx, |
||
1010 | "unexpected register file in _mesa_valid_register_index()"); |
||
1011 | return GL_FALSE; |
||
1012 | } |
||
1013 | } |
||
1014 | |||
1015 | |||
1016 | |||
1017 | /** |
||
1018 | * "Post-process" a GPU program. This is intended to be used for debugging. |
||
1019 | * Example actions include no-op'ing instructions or changing instruction |
||
1020 | * behaviour. |
||
1021 | */ |
||
1022 | void |
||
1023 | _mesa_postprocess_program(struct gl_context *ctx, struct gl_program *prog) |
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1024 | { |
||
1025 | static const GLfloat white[4] = { 0.5, 0.5, 0.5, 0.5 }; |
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1026 | GLuint i; |
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1027 | GLuint whiteSwizzle; |
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1028 | GLint whiteIndex = _mesa_add_unnamed_constant(prog->Parameters, |
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1029 | white, 4, &whiteSwizzle); |
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1030 | |||
1031 | (void) whiteIndex; |
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1032 | |||
1033 | for (i = 0; i < prog->NumInstructions; i++) { |
||
1034 | struct prog_instruction *inst = prog->Instructions + i; |
||
1035 | const GLuint n = _mesa_num_inst_src_regs(inst->Opcode); |
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1036 | |||
1037 | (void) n; |
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1038 | |||
1039 | if (_mesa_is_tex_instruction(inst->Opcode)) { |
||
1040 | #if 0 |
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1041 | /* replace TEX/TXP/TXB with MOV */ |
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1042 | inst->Opcode = OPCODE_MOV; |
||
1043 | inst->DstReg.WriteMask = WRITEMASK_XYZW; |
||
1044 | inst->SrcReg[0].Swizzle = SWIZZLE_XYZW; |
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1045 | inst->SrcReg[0].Negate = NEGATE_NONE; |
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1046 | #endif |
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1047 | |||
1048 | #if 0 |
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1049 | /* disable shadow texture mode */ |
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1050 | inst->TexShadow = 0; |
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1051 | #endif |
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1052 | } |
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1053 | |||
1054 | if (inst->Opcode == OPCODE_TXP) { |
||
1055 | #if 0 |
||
1056 | inst->Opcode = OPCODE_MOV; |
||
1057 | inst->DstReg.WriteMask = WRITEMASK_XYZW; |
||
1058 | inst->SrcReg[0].File = PROGRAM_CONSTANT; |
||
1059 | inst->SrcReg[0].Index = whiteIndex; |
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1060 | inst->SrcReg[0].Swizzle = SWIZZLE_XYZW; |
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1061 | inst->SrcReg[0].Negate = NEGATE_NONE; |
||
1062 | #endif |
||
1063 | #if 0 |
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1064 | inst->TexShadow = 0; |
||
1065 | #endif |
||
1066 | #if 0 |
||
1067 | inst->Opcode = OPCODE_TEX; |
||
1068 | inst->TexShadow = 0; |
||
1069 | #endif |
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1070 | } |
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1071 | |||
1072 | } |
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1073 | }>>>>>>>>>>>>>>>>>>>>>>>>><>><>>><>>>>>>>>>>=>=>>><>>><>>=>=>><>=>><>=>><>=>><>=>><>=>><>=> |