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1901 | serge | 1 | /* |
2 | * Mesa 3-D graphics library |
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3 | * Version: 6.5 |
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4 | * |
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5 | * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. |
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6 | * Copyright (C) 2009 VMware, Inc. All Rights Reserved. |
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7 | * |
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8 | * Permission is hereby granted, free of charge, to any person obtaining a |
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9 | * copy of this software and associated documentation files (the "Software"), |
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10 | * to deal in the Software without restriction, including without limitation |
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11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
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12 | * and/or sell copies of the Software, and to permit persons to whom the |
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13 | * Software is furnished to do so, subject to the following conditions: |
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14 | * |
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15 | * The above copyright notice and this permission notice shall be included |
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16 | * in all copies or substantial portions of the Software. |
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17 | * |
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18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
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19 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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21 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
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22 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
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23 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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24 | */ |
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25 | |||
26 | #include "mtypes.h" |
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27 | #include "attrib.h" |
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28 | #include "colormac.h" |
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29 | #include "enums.h" |
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30 | #include "formats.h" |
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31 | #include "hash.h" |
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32 | #include "imports.h" |
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33 | #include "debug.h" |
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34 | #include "get.h" |
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35 | #include "pixelstore.h" |
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36 | #include "readpix.h" |
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37 | #include "texobj.h" |
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38 | |||
39 | |||
40 | /** |
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41 | * Primitive names |
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42 | */ |
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43 | const char *_mesa_prim_name[GL_POLYGON+4] = { |
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44 | "GL_POINTS", |
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45 | "GL_LINES", |
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46 | "GL_LINE_LOOP", |
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47 | "GL_LINE_STRIP", |
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48 | "GL_TRIANGLES", |
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49 | "GL_TRIANGLE_STRIP", |
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50 | "GL_TRIANGLE_FAN", |
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51 | "GL_QUADS", |
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52 | "GL_QUAD_STRIP", |
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53 | "GL_POLYGON", |
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54 | "outside begin/end", |
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55 | "inside unknown primitive", |
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56 | "unknown state" |
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57 | }; |
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58 | |||
59 | |||
60 | static const char * |
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61 | tex_target_name(GLenum tgt) |
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62 | { |
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63 | static const struct { |
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64 | GLenum target; |
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65 | const char *name; |
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66 | } tex_targets[] = { |
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67 | { GL_TEXTURE_1D, "GL_TEXTURE_1D" }, |
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68 | { GL_TEXTURE_2D, "GL_TEXTURE_2D" }, |
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69 | { GL_TEXTURE_3D, "GL_TEXTURE_3D" }, |
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70 | { GL_TEXTURE_CUBE_MAP, "GL_TEXTURE_CUBE_MAP" }, |
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71 | { GL_TEXTURE_RECTANGLE, "GL_TEXTURE_RECTANGLE" }, |
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72 | { GL_TEXTURE_1D_ARRAY_EXT, "GL_TEXTURE_1D_ARRAY" }, |
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73 | { GL_TEXTURE_2D_ARRAY_EXT, "GL_TEXTURE_2D_ARRAY" } |
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74 | }; |
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75 | GLuint i; |
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76 | for (i = 0; i < Elements(tex_targets); i++) { |
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77 | if (tex_targets[i].target == tgt) |
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78 | return tex_targets[i].name; |
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79 | } |
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80 | return "UNKNOWN TEX TARGET"; |
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81 | } |
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82 | |||
83 | |||
84 | void |
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85 | _mesa_print_state( const char *msg, GLuint state ) |
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86 | { |
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87 | _mesa_debug(NULL, |
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88 | "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", |
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89 | msg, |
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90 | state, |
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91 | (state & _NEW_MODELVIEW) ? "ctx->ModelView, " : "", |
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92 | (state & _NEW_PROJECTION) ? "ctx->Projection, " : "", |
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93 | (state & _NEW_TEXTURE_MATRIX) ? "ctx->TextureMatrix, " : "", |
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94 | (state & _NEW_ACCUM) ? "ctx->Accum, " : "", |
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95 | (state & _NEW_COLOR) ? "ctx->Color, " : "", |
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96 | (state & _NEW_DEPTH) ? "ctx->Depth, " : "", |
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97 | (state & _NEW_EVAL) ? "ctx->Eval/EvalMap, " : "", |
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98 | (state & _NEW_FOG) ? "ctx->Fog, " : "", |
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99 | (state & _NEW_HINT) ? "ctx->Hint, " : "", |
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100 | (state & _NEW_LIGHT) ? "ctx->Light, " : "", |
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101 | (state & _NEW_LINE) ? "ctx->Line, " : "", |
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102 | (state & _NEW_PIXEL) ? "ctx->Pixel, " : "", |
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103 | (state & _NEW_POINT) ? "ctx->Point, " : "", |
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104 | (state & _NEW_POLYGON) ? "ctx->Polygon, " : "", |
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105 | (state & _NEW_POLYGONSTIPPLE) ? "ctx->PolygonStipple, " : "", |
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106 | (state & _NEW_SCISSOR) ? "ctx->Scissor, " : "", |
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107 | (state & _NEW_STENCIL) ? "ctx->Stencil, " : "", |
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108 | (state & _NEW_TEXTURE) ? "ctx->Texture, " : "", |
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109 | (state & _NEW_TRANSFORM) ? "ctx->Transform, " : "", |
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110 | (state & _NEW_VIEWPORT) ? "ctx->Viewport, " : "", |
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111 | (state & _NEW_PACKUNPACK) ? "ctx->Pack/Unpack, " : "", |
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112 | (state & _NEW_ARRAY) ? "ctx->Array, " : "", |
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113 | (state & _NEW_RENDERMODE) ? "ctx->RenderMode, " : "", |
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114 | (state & _NEW_BUFFERS) ? "ctx->Visual, ctx->DrawBuffer,, " : ""); |
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115 | } |
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116 | |||
117 | |||
118 | |||
119 | void |
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120 | _mesa_print_tri_caps( const char *name, GLuint flags ) |
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121 | { |
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122 | _mesa_debug(NULL, |
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123 | "%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s\n", |
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124 | name, |
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125 | flags, |
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126 | (flags & DD_FLATSHADE) ? "flat-shade, " : "", |
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127 | (flags & DD_SEPARATE_SPECULAR) ? "separate-specular, " : "", |
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128 | (flags & DD_TRI_LIGHT_TWOSIDE) ? "tri-light-twoside, " : "", |
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129 | (flags & DD_TRI_TWOSTENCIL) ? "tri-twostencil, " : "", |
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130 | (flags & DD_TRI_UNFILLED) ? "tri-unfilled, " : "", |
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131 | (flags & DD_TRI_STIPPLE) ? "tri-stipple, " : "", |
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132 | (flags & DD_TRI_OFFSET) ? "tri-offset, " : "", |
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133 | (flags & DD_TRI_SMOOTH) ? "tri-smooth, " : "", |
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134 | (flags & DD_LINE_SMOOTH) ? "line-smooth, " : "", |
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135 | (flags & DD_LINE_STIPPLE) ? "line-stipple, " : "", |
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136 | (flags & DD_POINT_SMOOTH) ? "point-smooth, " : "", |
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137 | (flags & DD_POINT_ATTEN) ? "point-atten, " : "", |
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138 | (flags & DD_TRI_CULL_FRONT_BACK) ? "cull-all, " : "" |
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139 | ); |
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140 | } |
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141 | |||
142 | |||
143 | /** |
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144 | * Print information about this Mesa version and build options. |
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145 | */ |
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146 | void _mesa_print_info( void ) |
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147 | { |
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148 | _mesa_debug(NULL, "Mesa GL_VERSION = %s\n", |
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149 | (char *) _mesa_GetString(GL_VERSION)); |
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150 | _mesa_debug(NULL, "Mesa GL_RENDERER = %s\n", |
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151 | (char *) _mesa_GetString(GL_RENDERER)); |
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152 | _mesa_debug(NULL, "Mesa GL_VENDOR = %s\n", |
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153 | (char *) _mesa_GetString(GL_VENDOR)); |
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154 | _mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n", |
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155 | (char *) _mesa_GetString(GL_EXTENSIONS)); |
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156 | #if defined(THREADS) |
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157 | _mesa_debug(NULL, "Mesa thread-safe: YES\n"); |
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158 | #else |
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159 | _mesa_debug(NULL, "Mesa thread-safe: NO\n"); |
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160 | #endif |
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161 | #if defined(USE_X86_ASM) |
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162 | _mesa_debug(NULL, "Mesa x86-optimized: YES\n"); |
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163 | #else |
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164 | _mesa_debug(NULL, "Mesa x86-optimized: NO\n"); |
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165 | #endif |
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166 | #if defined(USE_SPARC_ASM) |
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167 | _mesa_debug(NULL, "Mesa sparc-optimized: YES\n"); |
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168 | #else |
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169 | _mesa_debug(NULL, "Mesa sparc-optimized: NO\n"); |
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170 | #endif |
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171 | } |
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172 | |||
173 | |||
174 | /** |
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175 | * Set the debugging flags. |
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176 | * |
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177 | * \param debug debug string |
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178 | * |
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179 | * If compiled with debugging support then search for keywords in \p debug and |
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180 | * enables the verbose debug output of the respective feature. |
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181 | */ |
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182 | static void add_debug_flags( const char *debug ) |
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183 | { |
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184 | #ifdef DEBUG |
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185 | struct debug_option { |
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186 | const char *name; |
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187 | GLbitfield flag; |
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188 | }; |
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189 | static const struct debug_option debug_opt[] = { |
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190 | { "varray", VERBOSE_VARRAY }, |
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191 | { "tex", VERBOSE_TEXTURE }, |
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192 | { "mat", VERBOSE_MATERIAL }, |
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193 | { "pipe", VERBOSE_PIPELINE }, |
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194 | { "driver", VERBOSE_DRIVER }, |
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195 | { "state", VERBOSE_STATE }, |
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196 | { "api", VERBOSE_API }, |
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197 | { "list", VERBOSE_DISPLAY_LIST }, |
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198 | { "lighting", VERBOSE_LIGHTING }, |
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199 | { "disassem", VERBOSE_DISASSEM }, |
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200 | { "draw", VERBOSE_DRAW }, |
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201 | { "swap", VERBOSE_SWAPBUFFERS } |
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202 | }; |
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203 | GLuint i; |
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204 | |||
205 | MESA_VERBOSE = 0x0; |
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206 | for (i = 0; i < Elements(debug_opt); i++) { |
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207 | if (strstr(debug, debug_opt[i].name)) |
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208 | MESA_VERBOSE |= debug_opt[i].flag; |
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209 | } |
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210 | |||
211 | /* Debug flag: |
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212 | */ |
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213 | if (strstr(debug, "flush")) |
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214 | MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH; |
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215 | |||
216 | #if defined(_FPU_GETCW) && defined(_FPU_SETCW) |
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217 | if (strstr(debug, "fpexceptions")) { |
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218 | /* raise FP exceptions */ |
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219 | fpu_control_t mask; |
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220 | _FPU_GETCW(mask); |
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221 | mask &= ~(_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM |
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222 | | _FPU_MASK_OM | _FPU_MASK_UM); |
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223 | _FPU_SETCW(mask); |
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224 | } |
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225 | #endif |
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226 | |||
227 | #else |
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228 | (void) debug; |
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229 | #endif |
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230 | } |
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231 | |||
232 | |||
233 | void |
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234 | _mesa_init_debug( struct gl_context *ctx ) |
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235 | { |
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236 | char *c; |
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237 | |||
238 | /* Dither disable */ |
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239 | ctx->NoDither = _mesa_getenv("MESA_NO_DITHER") ? GL_TRUE : GL_FALSE; |
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240 | if (ctx->NoDither) { |
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241 | if (_mesa_getenv("MESA_DEBUG")) { |
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242 | _mesa_debug(ctx, "MESA_NO_DITHER set - dithering disabled\n"); |
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243 | } |
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244 | ctx->Color.DitherFlag = GL_FALSE; |
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245 | } |
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246 | |||
247 | c = _mesa_getenv("MESA_DEBUG"); |
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248 | if (c) |
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249 | add_debug_flags(c); |
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250 | |||
251 | c = _mesa_getenv("MESA_VERBOSE"); |
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252 | if (c) |
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253 | add_debug_flags(c); |
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254 | } |
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255 | |||
256 | |||
257 | /* |
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258 | * Write ppm file |
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259 | */ |
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260 | static void |
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261 | write_ppm(const char *filename, const GLubyte *buffer, int width, int height, |
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262 | int comps, int rcomp, int gcomp, int bcomp, GLboolean invert) |
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263 | { |
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264 | FILE *f = fopen( filename, "w" ); |
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265 | if (f) { |
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266 | int x, y; |
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267 | const GLubyte *ptr = buffer; |
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268 | fprintf(f,"P6\n"); |
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269 | fprintf(f,"# ppm-file created by osdemo.c\n"); |
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270 | fprintf(f,"%i %i\n", width,height); |
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271 | fprintf(f,"255\n"); |
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272 | fclose(f); |
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273 | f = fopen( filename, "ab" ); /* reopen in binary append mode */ |
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274 | for (y=0; y < height; y++) { |
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275 | for (x = 0; x < width; x++) { |
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276 | int yy = invert ? (height - 1 - y) : y; |
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277 | int i = (yy * width + x) * comps; |
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278 | fputc(ptr[i+rcomp], f); /* write red */ |
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279 | fputc(ptr[i+gcomp], f); /* write green */ |
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280 | fputc(ptr[i+bcomp], f); /* write blue */ |
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281 | } |
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282 | } |
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283 | fclose(f); |
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284 | } |
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285 | } |
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286 | |||
287 | |||
288 | /** |
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289 | * Write a texture image to a ppm file. |
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290 | * \param face cube face in [0,5] |
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291 | * \param level mipmap level |
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292 | */ |
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293 | static void |
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294 | write_texture_image(struct gl_texture_object *texObj, |
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295 | GLuint face, GLuint level) |
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296 | { |
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297 | struct gl_texture_image *img = texObj->Image[face][level]; |
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298 | if (img) { |
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299 | GET_CURRENT_CONTEXT(ctx); |
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300 | struct gl_pixelstore_attrib store; |
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301 | GLubyte *buffer; |
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302 | char s[100]; |
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303 | |||
304 | buffer = (GLubyte *) malloc(img->Width * img->Height |
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305 | * img->Depth * 4); |
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306 | |||
307 | store = ctx->Pack; /* save */ |
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308 | ctx->Pack = ctx->DefaultPacking; |
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309 | |||
310 | ctx->Driver.GetTexImage(ctx, texObj->Target, level, |
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311 | GL_RGBA, GL_UNSIGNED_BYTE, |
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312 | buffer, texObj, img); |
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313 | |||
314 | /* make filename */ |
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315 | _mesa_snprintf(s, sizeof(s), "/tmp/tex%u.l%u.f%u.ppm", texObj->Name, level, face); |
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316 | |||
317 | printf(" Writing image level %u to %s\n", level, s); |
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318 | write_ppm(s, buffer, img->Width, img->Height, 4, 0, 1, 2, GL_FALSE); |
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319 | |||
320 | ctx->Pack = store; /* restore */ |
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321 | |||
322 | free(buffer); |
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323 | } |
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324 | } |
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325 | |||
326 | |||
327 | /** |
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328 | * Write renderbuffer image to a ppm file. |
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329 | */ |
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330 | static void |
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331 | write_renderbuffer_image(const struct gl_renderbuffer *rb) |
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332 | { |
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333 | GET_CURRENT_CONTEXT(ctx); |
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334 | GLubyte *buffer; |
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335 | char s[100]; |
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336 | GLenum format, type; |
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337 | |||
338 | if (rb->_BaseFormat == GL_RGB || |
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339 | rb->_BaseFormat == GL_RGBA) { |
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340 | format = GL_RGBA; |
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341 | type = GL_UNSIGNED_BYTE; |
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342 | } |
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343 | else if (rb->_BaseFormat == GL_DEPTH_STENCIL) { |
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344 | format = GL_DEPTH_STENCIL; |
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345 | type = GL_UNSIGNED_INT_24_8; |
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346 | } |
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347 | else { |
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348 | return; |
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349 | } |
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350 | |||
351 | buffer = (GLubyte *) malloc(rb->Width * rb->Height * 4); |
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352 | |||
353 | ctx->Driver.ReadPixels(ctx, 0, 0, rb->Width, rb->Height, |
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354 | format, type, &ctx->DefaultPacking, buffer); |
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355 | |||
356 | /* make filename */ |
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357 | _mesa_snprintf(s, sizeof(s), "/tmp/renderbuffer%u.ppm", rb->Name); |
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358 | |||
359 | printf(" Writing renderbuffer image to %s\n", s); |
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360 | write_ppm(s, buffer, rb->Width, rb->Height, 4, 0, 1, 2, GL_TRUE); |
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361 | |||
362 | free(buffer); |
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363 | } |
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364 | |||
365 | |||
366 | /** How many texture images (mipmap levels, faces) to write to files */ |
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367 | #define WRITE_NONE 0 |
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368 | #define WRITE_ONE 1 |
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369 | #define WRITE_ALL 2 |
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370 | |||
371 | static GLuint WriteImages; |
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372 | |||
373 | |||
374 | static void |
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375 | dump_texture(struct gl_texture_object *texObj, GLuint writeImages) |
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376 | { |
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377 | const GLuint numFaces = texObj->Target == GL_TEXTURE_CUBE_MAP ? 6 : 1; |
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378 | GLboolean written = GL_FALSE; |
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379 | GLuint i, j; |
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380 | |||
381 | printf("Texture %u\n", texObj->Name); |
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382 | printf(" Target %s\n", tex_target_name(texObj->Target)); |
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383 | for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { |
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384 | for (j = 0; j < numFaces; j++) { |
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385 | struct gl_texture_image *texImg = texObj->Image[j][i]; |
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386 | if (texImg) { |
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387 | printf(" Face %u level %u: %d x %d x %d, format %s at %p\n", |
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388 | j, i, |
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389 | texImg->Width, texImg->Height, texImg->Depth, |
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390 | _mesa_get_format_name(texImg->TexFormat), |
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391 | texImg->Data); |
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392 | if (writeImages == WRITE_ALL || |
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393 | (writeImages == WRITE_ONE && !written)) { |
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394 | write_texture_image(texObj, j, i); |
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395 | written = GL_TRUE; |
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396 | } |
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397 | } |
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398 | } |
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399 | } |
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400 | } |
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401 | |||
402 | |||
403 | /** |
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404 | * Dump a single texture. |
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405 | */ |
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406 | void |
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407 | _mesa_dump_texture(GLuint texture, GLuint writeImages) |
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408 | { |
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409 | GET_CURRENT_CONTEXT(ctx); |
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410 | struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, texture); |
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411 | if (texObj) { |
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412 | dump_texture(texObj, writeImages); |
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413 | } |
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414 | } |
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415 | |||
416 | |||
417 | static void |
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418 | dump_texture_cb(GLuint id, void *data, void *userData) |
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419 | { |
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420 | struct gl_texture_object *texObj = (struct gl_texture_object *) data; |
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421 | (void) userData; |
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422 | dump_texture(texObj, WriteImages); |
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423 | } |
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424 | |||
425 | |||
426 | /** |
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427 | * Print basic info about all texture objext to stdout. |
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428 | * If dumpImages is true, write PPM of level[0] image to a file. |
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429 | */ |
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430 | void |
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431 | _mesa_dump_textures(GLuint writeImages) |
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432 | { |
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433 | GET_CURRENT_CONTEXT(ctx); |
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434 | WriteImages = writeImages; |
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435 | _mesa_HashWalk(ctx->Shared->TexObjects, dump_texture_cb, ctx); |
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436 | } |
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437 | |||
438 | |||
439 | static void |
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440 | dump_renderbuffer(const struct gl_renderbuffer *rb, GLboolean writeImage) |
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441 | { |
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442 | printf("Renderbuffer %u: %u x %u IntFormat = %s\n", |
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443 | rb->Name, rb->Width, rb->Height, |
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444 | _mesa_lookup_enum_by_nr(rb->InternalFormat)); |
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445 | if (writeImage) { |
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446 | write_renderbuffer_image(rb); |
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447 | } |
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448 | } |
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449 | |||
450 | |||
451 | static void |
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452 | dump_renderbuffer_cb(GLuint id, void *data, void *userData) |
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453 | { |
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454 | const struct gl_renderbuffer *rb = (const struct gl_renderbuffer *) data; |
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455 | (void) userData; |
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456 | dump_renderbuffer(rb, WriteImages); |
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457 | } |
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458 | |||
459 | |||
460 | /** |
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461 | * Print basic info about all renderbuffers to stdout. |
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462 | * If dumpImages is true, write PPM of level[0] image to a file. |
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463 | */ |
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464 | void |
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465 | _mesa_dump_renderbuffers(GLboolean writeImages) |
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466 | { |
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467 | GET_CURRENT_CONTEXT(ctx); |
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468 | WriteImages = writeImages; |
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469 | _mesa_HashWalk(ctx->Shared->RenderBuffers, dump_renderbuffer_cb, ctx); |
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470 | } |
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471 | |||
472 | |||
473 | |||
474 | void |
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475 | _mesa_dump_color_buffer(const char *filename) |
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476 | { |
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477 | GET_CURRENT_CONTEXT(ctx); |
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478 | const GLuint w = ctx->DrawBuffer->Width; |
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479 | const GLuint h = ctx->DrawBuffer->Height; |
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480 | GLubyte *buf; |
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481 | |||
482 | buf = (GLubyte *) malloc(w * h * 4); |
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483 | |||
484 | _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT); |
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485 | _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1); |
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486 | _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE); |
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487 | |||
488 | _mesa_ReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, buf); |
||
489 | |||
490 | printf("ReadBuffer %p 0x%x DrawBuffer %p 0x%x\n", |
||
491 | (void *) ctx->ReadBuffer->_ColorReadBuffer, |
||
492 | ctx->ReadBuffer->ColorReadBuffer, |
||
493 | (void *) ctx->DrawBuffer->_ColorDrawBuffers[0], |
||
494 | ctx->DrawBuffer->ColorDrawBuffer[0]); |
||
495 | printf("Writing %d x %d color buffer to %s\n", w, h, filename); |
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496 | write_ppm(filename, buf, w, h, 4, 0, 1, 2, GL_TRUE); |
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497 | |||
498 | _mesa_PopClientAttrib(); |
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499 | |||
500 | free(buf); |
||
501 | } |
||
502 | |||
503 | |||
504 | void |
||
505 | _mesa_dump_depth_buffer(const char *filename) |
||
506 | { |
||
507 | GET_CURRENT_CONTEXT(ctx); |
||
508 | const GLuint w = ctx->DrawBuffer->Width; |
||
509 | const GLuint h = ctx->DrawBuffer->Height; |
||
510 | GLuint *buf; |
||
511 | GLubyte *buf2; |
||
512 | GLuint i; |
||
513 | |||
514 | buf = (GLuint *) malloc(w * h * 4); /* 4 bpp */ |
||
515 | buf2 = (GLubyte *) malloc(w * h * 3); /* 3 bpp */ |
||
516 | |||
517 | _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT); |
||
518 | _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1); |
||
519 | _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE); |
||
520 | |||
521 | _mesa_ReadPixels(0, 0, w, h, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, buf); |
||
522 | |||
523 | /* spread 24 bits of Z across R, G, B */ |
||
524 | for (i = 0; i < w * h; i++) { |
||
525 | buf2[i*3+0] = (buf[i] >> 24) & 0xff; |
||
526 | buf2[i*3+1] = (buf[i] >> 16) & 0xff; |
||
527 | buf2[i*3+2] = (buf[i] >> 8) & 0xff; |
||
528 | } |
||
529 | |||
530 | printf("Writing %d x %d depth buffer to %s\n", w, h, filename); |
||
531 | write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE); |
||
532 | |||
533 | _mesa_PopClientAttrib(); |
||
534 | |||
535 | free(buf); |
||
536 | free(buf2); |
||
537 | } |
||
538 | |||
539 | |||
540 | void |
||
541 | _mesa_dump_stencil_buffer(const char *filename) |
||
542 | { |
||
543 | GET_CURRENT_CONTEXT(ctx); |
||
544 | const GLuint w = ctx->DrawBuffer->Width; |
||
545 | const GLuint h = ctx->DrawBuffer->Height; |
||
546 | GLubyte *buf; |
||
547 | GLubyte *buf2; |
||
548 | GLuint i; |
||
549 | |||
550 | buf = (GLubyte *) malloc(w * h); /* 1 bpp */ |
||
551 | buf2 = (GLubyte *) malloc(w * h * 3); /* 3 bpp */ |
||
552 | |||
553 | _mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT); |
||
554 | _mesa_PixelStorei(GL_PACK_ALIGNMENT, 1); |
||
555 | _mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE); |
||
556 | |||
557 | _mesa_ReadPixels(0, 0, w, h, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, buf); |
||
558 | |||
559 | for (i = 0; i < w * h; i++) { |
||
560 | buf2[i*3+0] = buf[i]; |
||
561 | buf2[i*3+1] = (buf[i] & 127) * 2; |
||
562 | buf2[i*3+2] = (buf[i] - 128) * 2; |
||
563 | } |
||
564 | |||
565 | printf("Writing %d x %d stencil buffer to %s\n", w, h, filename); |
||
566 | write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE); |
||
567 | |||
568 | _mesa_PopClientAttrib(); |
||
569 | |||
570 | free(buf); |
||
571 | free(buf2); |
||
572 | } |
||
573 | |||
574 | |||
575 | /** |
||
576 | * Quick and dirty function to "print" a texture to stdout. |
||
577 | */ |
||
578 | void |
||
579 | _mesa_print_texture(struct gl_context *ctx, const struct gl_texture_image *img) |
||
580 | { |
||
581 | #if CHAN_TYPE != GL_UNSIGNED_BYTE |
||
582 | _mesa_problem(NULL, "PrintTexture not supported"); |
||
583 | #else |
||
584 | GLuint i, j, c; |
||
585 | const GLubyte *data = (const GLubyte *) img->Data; |
||
586 | |||
587 | if (!data) { |
||
588 | printf("No texture data\n"); |
||
589 | return; |
||
590 | } |
||
591 | |||
592 | /* XXX add more formats or make into a new format utility function */ |
||
593 | switch (img->TexFormat) { |
||
594 | case MESA_FORMAT_A8: |
||
595 | case MESA_FORMAT_L8: |
||
596 | case MESA_FORMAT_I8: |
||
597 | case MESA_FORMAT_CI8: |
||
598 | c = 1; |
||
599 | break; |
||
600 | case MESA_FORMAT_AL88: |
||
601 | case MESA_FORMAT_AL88_REV: |
||
602 | c = 2; |
||
603 | break; |
||
604 | case MESA_FORMAT_RGB888: |
||
605 | case MESA_FORMAT_BGR888: |
||
606 | c = 3; |
||
607 | break; |
||
608 | case MESA_FORMAT_RGBA8888: |
||
609 | case MESA_FORMAT_ARGB8888: |
||
610 | c = 4; |
||
611 | break; |
||
612 | default: |
||
613 | _mesa_problem(NULL, "error in PrintTexture\n"); |
||
614 | return; |
||
615 | } |
||
616 | |||
617 | for (i = 0; i < img->Height; i++) { |
||
618 | for (j = 0; j < img->Width; j++) { |
||
619 | if (c==1) |
||
620 | printf("%02x ", data[0]); |
||
621 | else if (c==2) |
||
622 | printf("%02x%02x ", data[0], data[1]); |
||
623 | else if (c==3) |
||
624 | printf("%02x%02x%02x ", data[0], data[1], data[2]); |
||
625 | else if (c==4) |
||
626 | printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]); |
||
627 | data += (img->RowStride - img->Width) * c; |
||
628 | } |
||
629 | /* XXX use img->ImageStride here */ |
||
630 | printf("\n"); |
||
631 | } |
||
632 | #endif |
||
633 | }>>>>>>>>>> |