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4358 | Serge | 1 | /************************************************************************** |
2 | * |
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3 | * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. |
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4 | * All Rights Reserved. |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a |
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7 | * copy of this software and associated documentation files (the |
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8 | * "Software"), to deal in the Software without restriction, including |
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9 | * without limitation the rights to use, copy, modify, merge, publish, |
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10 | * distribute, sub license, and/or sell copies of the Software, and to |
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11 | * permit persons to whom the Software is furnished to do so, subject to |
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12 | * the following conditions: |
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13 | * |
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14 | * The above copyright notice and this permission notice (including the |
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15 | * next paragraph) shall be included in all copies or substantial portions |
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16 | * 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 |
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20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
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21 | * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR |
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22 | * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
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23 | * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
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24 | * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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25 | * |
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26 | **************************************************************************/ |
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27 | |||
28 | #include "main/mtypes.h" |
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29 | #include "main/enums.h" |
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30 | #include "main/macros.h" |
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31 | #include "main/colormac.h" |
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32 | #include "main/samplerobj.h" |
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33 | |||
34 | #include "intel_mipmap_tree.h" |
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35 | #include "intel_tex.h" |
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36 | |||
37 | #include "i915_context.h" |
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38 | #include "i915_reg.h" |
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39 | |||
40 | |||
41 | static GLuint |
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42 | translate_texture_format(gl_format mesa_format, GLenum DepthMode) |
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43 | { |
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44 | switch (mesa_format) { |
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45 | case MESA_FORMAT_L8: |
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46 | return MAPSURF_8BIT | MT_8BIT_L8; |
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47 | case MESA_FORMAT_I8: |
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48 | return MAPSURF_8BIT | MT_8BIT_I8; |
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49 | case MESA_FORMAT_A8: |
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4633 | Serge | 50 | case MESA_FORMAT_R8: |
4358 | Serge | 51 | return MAPSURF_8BIT | MT_8BIT_A8; |
52 | case MESA_FORMAT_AL88: |
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53 | return MAPSURF_16BIT | MT_16BIT_AY88; |
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54 | case MESA_FORMAT_RGB565: |
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55 | return MAPSURF_16BIT | MT_16BIT_RGB565; |
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56 | case MESA_FORMAT_ARGB1555: |
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57 | return MAPSURF_16BIT | MT_16BIT_ARGB1555; |
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58 | case MESA_FORMAT_ARGB4444: |
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59 | return MAPSURF_16BIT | MT_16BIT_ARGB4444; |
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60 | case MESA_FORMAT_SARGB8: |
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61 | case MESA_FORMAT_ARGB8888: |
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62 | return MAPSURF_32BIT | MT_32BIT_ARGB8888; |
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63 | case MESA_FORMAT_XRGB8888: |
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64 | return MAPSURF_32BIT | MT_32BIT_XRGB8888; |
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65 | case MESA_FORMAT_RGBA8888_REV: |
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66 | return MAPSURF_32BIT | MT_32BIT_ABGR8888; |
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67 | case MESA_FORMAT_YCBCR_REV: |
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68 | return (MAPSURF_422 | MT_422_YCRCB_NORMAL); |
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69 | case MESA_FORMAT_YCBCR: |
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70 | return (MAPSURF_422 | MT_422_YCRCB_SWAPY); |
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71 | case MESA_FORMAT_RGB_FXT1: |
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72 | case MESA_FORMAT_RGBA_FXT1: |
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73 | return (MAPSURF_COMPRESSED | MT_COMPRESS_FXT1); |
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74 | case MESA_FORMAT_Z16: |
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75 | if (DepthMode == GL_ALPHA) |
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76 | return (MAPSURF_16BIT | MT_16BIT_A16); |
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77 | else if (DepthMode == GL_INTENSITY) |
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78 | return (MAPSURF_16BIT | MT_16BIT_I16); |
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79 | else |
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80 | return (MAPSURF_16BIT | MT_16BIT_L16); |
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81 | case MESA_FORMAT_RGBA_DXT1: |
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82 | case MESA_FORMAT_RGB_DXT1: |
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83 | case MESA_FORMAT_SRGB_DXT1: |
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84 | case MESA_FORMAT_SRGBA_DXT1: |
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85 | return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1); |
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86 | case MESA_FORMAT_RGBA_DXT3: |
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87 | case MESA_FORMAT_SRGBA_DXT3: |
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88 | return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3); |
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89 | case MESA_FORMAT_RGBA_DXT5: |
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90 | case MESA_FORMAT_SRGBA_DXT5: |
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91 | return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5); |
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92 | case MESA_FORMAT_S8_Z24: |
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93 | case MESA_FORMAT_X8_Z24: |
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94 | if (DepthMode == GL_ALPHA) |
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95 | return (MAPSURF_32BIT | MT_32BIT_x8A24); |
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96 | else if (DepthMode == GL_INTENSITY) |
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97 | return (MAPSURF_32BIT | MT_32BIT_x8I24); |
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98 | else |
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99 | return (MAPSURF_32BIT | MT_32BIT_x8L24); |
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100 | default: |
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101 | fprintf(stderr, "%s: bad image format %s\n", __FUNCTION__, |
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102 | _mesa_get_format_name(mesa_format)); |
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103 | abort(); |
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104 | return 0; |
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105 | } |
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106 | } |
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107 | |||
108 | |||
109 | |||
110 | |||
111 | /* The i915 (and related graphics cores) do not support GL_CLAMP. The |
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112 | * Intel drivers for "other operating systems" implement GL_CLAMP as |
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113 | * GL_CLAMP_TO_EDGE, so the same is done here. |
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114 | */ |
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115 | static GLuint |
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116 | translate_wrap_mode(GLenum wrap) |
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117 | { |
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118 | switch (wrap) { |
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119 | case GL_REPEAT: |
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120 | return TEXCOORDMODE_WRAP; |
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121 | case GL_CLAMP: |
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122 | return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ |
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123 | case GL_CLAMP_TO_EDGE: |
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124 | return TEXCOORDMODE_CLAMP_EDGE; |
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125 | case GL_CLAMP_TO_BORDER: |
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126 | return TEXCOORDMODE_CLAMP_BORDER; |
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127 | case GL_MIRRORED_REPEAT: |
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128 | return TEXCOORDMODE_MIRROR; |
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129 | default: |
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130 | return TEXCOORDMODE_WRAP; |
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131 | } |
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132 | } |
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133 | |||
134 | |||
135 | |||
136 | /* Recalculate all state from scratch. Perhaps not the most |
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137 | * efficient, but this has gotten complex enough that we need |
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138 | * something which is understandable and reliable. |
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139 | */ |
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140 | static bool |
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141 | i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) |
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142 | { |
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143 | struct gl_context *ctx = &intel->ctx; |
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144 | struct i915_context *i915 = i915_context(ctx); |
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145 | struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit]; |
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146 | struct gl_texture_object *tObj = tUnit->_Current; |
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147 | struct intel_texture_object *intelObj = intel_texture_object(tObj); |
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148 | struct gl_texture_image *firstImage; |
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149 | struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit); |
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150 | GLuint *state = i915->state.Tex[unit], format; |
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151 | GLint lodbias, aniso = 0; |
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152 | GLubyte border[4]; |
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153 | GLfloat maxlod; |
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154 | |||
155 | memset(state, 0, sizeof(*state)); |
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156 | |||
157 | /*We need to refcount these. */ |
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158 | |||
159 | if (i915->state.tex_buffer[unit] != NULL) { |
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160 | drm_intel_bo_unreference(i915->state.tex_buffer[unit]); |
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161 | i915->state.tex_buffer[unit] = NULL; |
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162 | } |
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163 | |||
164 | if (!intel_finalize_mipmap_tree(intel, unit)) |
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165 | return false; |
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166 | |||
167 | /* Get first image here, since intelObj->firstLevel will get set in |
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168 | * the intel_finalize_mipmap_tree() call above. |
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169 | */ |
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170 | firstImage = tObj->Image[0][tObj->BaseLevel]; |
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171 | |||
172 | drm_intel_bo_reference(intelObj->mt->region->bo); |
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173 | i915->state.tex_buffer[unit] = intelObj->mt->region->bo; |
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174 | i915->state.tex_offset[unit] = intelObj->mt->offset; |
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175 | |||
176 | format = translate_texture_format(firstImage->TexFormat, |
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177 | tObj->DepthMode); |
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178 | |||
179 | state[I915_TEXREG_MS3] = |
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180 | (((firstImage->Height - 1) << MS3_HEIGHT_SHIFT) | |
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181 | ((firstImage->Width - 1) << MS3_WIDTH_SHIFT) | format); |
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182 | |||
183 | if (intelObj->mt->region->tiling != I915_TILING_NONE) { |
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184 | state[I915_TEXREG_MS3] |= MS3_TILED_SURFACE; |
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185 | if (intelObj->mt->region->tiling == I915_TILING_Y) |
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186 | state[I915_TEXREG_MS3] |= MS3_TILE_WALK; |
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187 | } |
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188 | |||
189 | /* We get one field with fraction bits for the maximum addressable |
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190 | * (lowest resolution) LOD. Use it to cover both MAX_LEVEL and |
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191 | * MAX_LOD. |
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192 | */ |
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193 | maxlod = MIN2(sampler->MaxLod, tObj->_MaxLevel - tObj->BaseLevel); |
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194 | state[I915_TEXREG_MS4] = |
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195 | ((((intelObj->mt->region->pitch / 4) - 1) << MS4_PITCH_SHIFT) | |
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196 | MS4_CUBE_FACE_ENA_MASK | |
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197 | (U_FIXED(CLAMP(maxlod, 0.0, 11.0), 2) << MS4_MAX_LOD_SHIFT) | |
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198 | ((firstImage->Depth - 1) << MS4_VOLUME_DEPTH_SHIFT)); |
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199 | |||
200 | |||
201 | { |
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202 | GLuint minFilt, mipFilt, magFilt; |
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203 | |||
204 | switch (sampler->MinFilter) { |
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205 | case GL_NEAREST: |
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206 | minFilt = FILTER_NEAREST; |
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207 | mipFilt = MIPFILTER_NONE; |
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208 | break; |
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209 | case GL_LINEAR: |
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210 | minFilt = FILTER_LINEAR; |
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211 | mipFilt = MIPFILTER_NONE; |
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212 | break; |
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213 | case GL_NEAREST_MIPMAP_NEAREST: |
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214 | minFilt = FILTER_NEAREST; |
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215 | mipFilt = MIPFILTER_NEAREST; |
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216 | break; |
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217 | case GL_LINEAR_MIPMAP_NEAREST: |
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218 | minFilt = FILTER_LINEAR; |
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219 | mipFilt = MIPFILTER_NEAREST; |
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220 | break; |
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221 | case GL_NEAREST_MIPMAP_LINEAR: |
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222 | minFilt = FILTER_NEAREST; |
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223 | mipFilt = MIPFILTER_LINEAR; |
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224 | break; |
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225 | case GL_LINEAR_MIPMAP_LINEAR: |
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226 | minFilt = FILTER_LINEAR; |
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227 | mipFilt = MIPFILTER_LINEAR; |
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228 | break; |
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229 | default: |
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230 | return false; |
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231 | } |
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232 | |||
233 | if (sampler->MaxAnisotropy > 1.0) { |
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234 | minFilt = FILTER_ANISOTROPIC; |
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235 | magFilt = FILTER_ANISOTROPIC; |
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236 | if (sampler->MaxAnisotropy > 2.0) |
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237 | aniso = SS2_MAX_ANISO_4; |
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238 | else |
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239 | aniso = SS2_MAX_ANISO_2; |
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240 | } |
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241 | else { |
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242 | switch (sampler->MagFilter) { |
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243 | case GL_NEAREST: |
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244 | magFilt = FILTER_NEAREST; |
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245 | break; |
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246 | case GL_LINEAR: |
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247 | magFilt = FILTER_LINEAR; |
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248 | break; |
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249 | default: |
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250 | return false; |
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251 | } |
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252 | } |
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253 | |||
254 | lodbias = (int) ((tUnit->LodBias + sampler->LodBias) * 16.0); |
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255 | if (lodbias < -256) |
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256 | lodbias = -256; |
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257 | if (lodbias > 255) |
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258 | lodbias = 255; |
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259 | state[I915_TEXREG_SS2] = ((lodbias << SS2_LOD_BIAS_SHIFT) & |
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260 | SS2_LOD_BIAS_MASK); |
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261 | |||
262 | /* YUV conversion: |
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263 | */ |
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264 | if (firstImage->TexFormat == MESA_FORMAT_YCBCR || |
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265 | firstImage->TexFormat == MESA_FORMAT_YCBCR_REV) |
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266 | state[I915_TEXREG_SS2] |= SS2_COLORSPACE_CONVERSION; |
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267 | |||
268 | /* Shadow: |
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269 | */ |
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270 | if (sampler->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB && |
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271 | tObj->Target != GL_TEXTURE_3D) { |
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272 | if (tObj->Target == GL_TEXTURE_1D) |
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273 | return false; |
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274 | |||
275 | state[I915_TEXREG_SS2] |= |
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276 | (SS2_SHADOW_ENABLE | |
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277 | intel_translate_shadow_compare_func(sampler->CompareFunc)); |
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278 | |||
279 | minFilt = FILTER_4X4_FLAT; |
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280 | magFilt = FILTER_4X4_FLAT; |
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281 | } |
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282 | |||
283 | state[I915_TEXREG_SS2] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | |
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284 | (mipFilt << SS2_MIP_FILTER_SHIFT) | |
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285 | (magFilt << SS2_MAG_FILTER_SHIFT) | |
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286 | aniso); |
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287 | } |
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288 | |||
289 | { |
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290 | GLenum ws = sampler->WrapS; |
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291 | GLenum wt = sampler->WrapT; |
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292 | GLenum wr = sampler->WrapR; |
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293 | float minlod; |
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294 | |||
295 | /* We program 1D textures as 2D textures, so the 2D texcoord could |
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296 | * result in sampling border values if we don't set the T wrap to |
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297 | * repeat. |
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298 | */ |
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299 | if (tObj->Target == GL_TEXTURE_1D) |
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300 | wt = GL_REPEAT; |
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301 | |||
302 | /* 3D textures don't seem to respect the border color. |
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303 | * Fallback if there's ever a danger that they might refer to |
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304 | * it. |
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305 | * |
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306 | * Effectively this means fallback on 3D clamp or |
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307 | * clamp_to_border. |
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308 | */ |
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309 | if (tObj->Target == GL_TEXTURE_3D && |
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310 | (sampler->MinFilter != GL_NEAREST || |
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311 | sampler->MagFilter != GL_NEAREST) && |
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312 | (ws == GL_CLAMP || |
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313 | wt == GL_CLAMP || |
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314 | wr == GL_CLAMP || |
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315 | ws == GL_CLAMP_TO_BORDER || |
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316 | wt == GL_CLAMP_TO_BORDER || wr == GL_CLAMP_TO_BORDER)) |
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317 | return false; |
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318 | |||
319 | /* Only support TEXCOORDMODE_CLAMP_EDGE and TEXCOORDMODE_CUBE (not |
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320 | * used) when using cube map texture coordinates |
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321 | */ |
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322 | if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB && |
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323 | (((ws != GL_CLAMP) && (ws != GL_CLAMP_TO_EDGE)) || |
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324 | ((wt != GL_CLAMP) && (wt != GL_CLAMP_TO_EDGE)))) |
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325 | return false; |
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326 | |||
327 | /* |
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328 | * According to 3DSTATE_MAP_STATE at page of 104 in Bspec |
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329 | * Vol3d 3D Instructions: |
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330 | * [DevGDG and DevAlv]: Must be a power of 2 for cube maps. |
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331 | * [DevLPT, DevCST and DevBLB]: If not a power of 2, cube maps |
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332 | * must have all faces enabled. |
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333 | * |
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334 | * But, as I tested on pineview(DevBLB derived), the rendering is |
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335 | * bad(you will find the color isn't samplered right in some |
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336 | * fragments). After checking, it seems that the texture layout is |
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337 | * wrong: making the width and height align of 4(although this |
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338 | * doesn't make much sense) will fix this issue and also broke some |
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339 | * others. Well, Bspec mentioned nothing about the layout alignment |
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340 | * and layout for NPOT cube map. I guess the Bspec just assume it's |
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341 | * a POT cube map. |
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342 | * |
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343 | * Thus, I guess we need do this for other platforms as well. |
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344 | */ |
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345 | if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB && |
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346 | !is_power_of_two(firstImage->Height)) |
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347 | return false; |
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348 | |||
349 | state[I915_TEXREG_SS3] = ss3; /* SS3_NORMALIZED_COORDS */ |
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350 | |||
351 | state[I915_TEXREG_SS3] |= |
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352 | ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | |
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353 | (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | |
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354 | (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); |
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355 | |||
356 | minlod = MIN2(sampler->MinLod, tObj->_MaxLevel - tObj->BaseLevel); |
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357 | state[I915_TEXREG_SS3] |= (unit << SS3_TEXTUREMAP_INDEX_SHIFT); |
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358 | state[I915_TEXREG_SS3] |= (U_FIXED(CLAMP(minlod, 0.0, 11.0), 4) << |
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359 | SS3_MIN_LOD_SHIFT); |
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360 | |||
361 | } |
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362 | |||
363 | if (sampler->sRGBDecode == GL_DECODE_EXT && |
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364 | (_mesa_get_srgb_format_linear(firstImage->TexFormat) != |
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365 | firstImage->TexFormat)) { |
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366 | state[I915_TEXREG_SS2] |= SS2_REVERSE_GAMMA_ENABLE; |
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367 | } |
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368 | |||
369 | /* convert border color from float to ubyte */ |
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370 | CLAMPED_FLOAT_TO_UBYTE(border[0], sampler->BorderColor.f[0]); |
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371 | CLAMPED_FLOAT_TO_UBYTE(border[1], sampler->BorderColor.f[1]); |
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372 | CLAMPED_FLOAT_TO_UBYTE(border[2], sampler->BorderColor.f[2]); |
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373 | CLAMPED_FLOAT_TO_UBYTE(border[3], sampler->BorderColor.f[3]); |
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374 | |||
375 | if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) { |
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376 | /* GL specs that border color for depth textures is taken from the |
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377 | * R channel, while the hardware uses A. Spam R into all the channels |
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378 | * for safety. |
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379 | */ |
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380 | state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[0], |
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381 | border[0], |
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382 | border[0], |
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383 | border[0]); |
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384 | } else { |
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385 | state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[3], |
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386 | border[0], |
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387 | border[1], |
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388 | border[2]); |
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389 | } |
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390 | |||
391 | |||
392 | I915_ACTIVESTATE(i915, I915_UPLOAD_TEX(unit), true); |
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393 | /* memcmp was already disabled, but definitely won't work as the |
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394 | * region might now change and that wouldn't be detected: |
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395 | */ |
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396 | I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit)); |
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397 | |||
398 | |||
399 | #if 0 |
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400 | DBG(TEXTURE, "state[I915_TEXREG_SS2] = 0x%x\n", state[I915_TEXREG_SS2]); |
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401 | DBG(TEXTURE, "state[I915_TEXREG_SS3] = 0x%x\n", state[I915_TEXREG_SS3]); |
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402 | DBG(TEXTURE, "state[I915_TEXREG_SS4] = 0x%x\n", state[I915_TEXREG_SS4]); |
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403 | DBG(TEXTURE, "state[I915_TEXREG_MS2] = 0x%x\n", state[I915_TEXREG_MS2]); |
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404 | DBG(TEXTURE, "state[I915_TEXREG_MS3] = 0x%x\n", state[I915_TEXREG_MS3]); |
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405 | DBG(TEXTURE, "state[I915_TEXREG_MS4] = 0x%x\n", state[I915_TEXREG_MS4]); |
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406 | #endif |
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407 | |||
408 | return true; |
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409 | } |
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410 | |||
411 | |||
412 | |||
413 | |||
414 | void |
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415 | i915UpdateTextureState(struct intel_context *intel) |
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416 | { |
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417 | bool ok = true; |
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418 | GLuint i; |
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419 | |||
420 | for (i = 0; i < I915_TEX_UNITS && ok; i++) { |
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421 | switch (intel->ctx.Texture.Unit[i]._ReallyEnabled) { |
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422 | case TEXTURE_1D_BIT: |
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423 | case TEXTURE_2D_BIT: |
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424 | case TEXTURE_CUBE_BIT: |
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425 | case TEXTURE_3D_BIT: |
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426 | ok = i915_update_tex_unit(intel, i, SS3_NORMALIZED_COORDS); |
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427 | break; |
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428 | case TEXTURE_RECT_BIT: |
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429 | ok = i915_update_tex_unit(intel, i, 0); |
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430 | break; |
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431 | case 0:{ |
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432 | struct i915_context *i915 = i915_context(&intel->ctx); |
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433 | if (i915->state.active & I915_UPLOAD_TEX(i)) |
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434 | I915_ACTIVESTATE(i915, I915_UPLOAD_TEX(i), false); |
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435 | |||
436 | if (i915->state.tex_buffer[i] != NULL) { |
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437 | drm_intel_bo_unreference(i915->state.tex_buffer[i]); |
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438 | i915->state.tex_buffer[i] = NULL; |
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439 | } |
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440 | |||
441 | break; |
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442 | } |
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443 | default: |
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444 | ok = false; |
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445 | break; |
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446 | } |
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447 | } |
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448 | |||
449 | FALLBACK(intel, I915_FALLBACK_TEXTURE, !ok); |
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450 | }> |