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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 | |||
29 | #include "main/glheader.h" |
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30 | #include "main/context.h" |
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31 | |||
32 | #include "pipe/p_defines.h" |
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33 | #include "st_context.h" |
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34 | #include "st_atom.h" |
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35 | #include "st_cb_bitmap.h" |
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36 | #include "st_program.h" |
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37 | #include "st_manager.h" |
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38 | |||
39 | |||
40 | /** |
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41 | * This is used to initialize st->atoms[]. |
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42 | */ |
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43 | static const struct st_tracked_state *atoms[] = |
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44 | { |
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45 | &st_update_depth_stencil_alpha, |
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46 | &st_update_clip, |
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47 | |||
48 | &st_finalize_textures, |
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49 | &st_update_fp, |
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50 | &st_update_gp, |
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51 | &st_update_vp, |
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52 | |||
53 | &st_update_rasterizer, |
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54 | &st_update_polygon_stipple, |
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55 | &st_update_viewport, |
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56 | &st_update_scissor, |
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57 | &st_update_blend, |
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58 | &st_update_vertex_texture, |
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59 | &st_update_fragment_texture, |
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60 | &st_update_geometry_texture, |
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61 | &st_update_sampler, /* depends on update_*_texture for swizzle */ |
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62 | &st_update_framebuffer, |
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63 | &st_update_msaa, |
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64 | &st_update_vs_constants, |
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65 | &st_update_gs_constants, |
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66 | &st_update_fs_constants, |
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67 | &st_bind_vs_ubos, |
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68 | &st_bind_fs_ubos, |
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69 | &st_update_pixel_transfer, |
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70 | |||
71 | /* this must be done after the vertex program update */ |
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72 | &st_update_array |
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73 | }; |
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74 | |||
75 | |||
76 | void st_init_atoms( struct st_context *st ) |
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77 | { |
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78 | /* no-op */ |
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79 | } |
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80 | |||
81 | |||
82 | void st_destroy_atoms( struct st_context *st ) |
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83 | { |
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84 | /* no-op */ |
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85 | } |
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86 | |||
87 | |||
88 | /*********************************************************************** |
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89 | */ |
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90 | |||
91 | static GLboolean check_state( const struct st_state_flags *a, |
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92 | const struct st_state_flags *b ) |
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93 | { |
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94 | return ((a->mesa & b->mesa) || |
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95 | (a->st & b->st)); |
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96 | } |
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97 | |||
98 | static void accumulate_state( struct st_state_flags *a, |
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99 | const struct st_state_flags *b ) |
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100 | { |
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101 | a->mesa |= b->mesa; |
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102 | a->st |= b->st; |
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103 | } |
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104 | |||
105 | |||
106 | static void xor_states( struct st_state_flags *result, |
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107 | const struct st_state_flags *a, |
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108 | const struct st_state_flags *b ) |
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109 | { |
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110 | result->mesa = a->mesa ^ b->mesa; |
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111 | result->st = a->st ^ b->st; |
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112 | } |
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113 | |||
114 | |||
115 | /* Too complex to figure out, just check every time: |
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116 | */ |
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117 | static void check_program_state( struct st_context *st ) |
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118 | { |
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119 | struct gl_context *ctx = st->ctx; |
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120 | |||
121 | if (ctx->VertexProgram._Current != &st->vp->Base) |
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122 | st->dirty.st |= ST_NEW_VERTEX_PROGRAM; |
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123 | |||
124 | if (ctx->FragmentProgram._Current != &st->fp->Base) |
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125 | st->dirty.st |= ST_NEW_FRAGMENT_PROGRAM; |
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126 | |||
127 | if (ctx->GeometryProgram._Current != &st->gp->Base) |
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128 | st->dirty.st |= ST_NEW_GEOMETRY_PROGRAM; |
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129 | } |
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130 | |||
131 | static void check_attrib_edgeflag(struct st_context *st) |
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132 | { |
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133 | const struct gl_client_array **arrays = st->ctx->Array._DrawArrays; |
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134 | GLboolean vertDataEdgeFlags; |
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135 | |||
136 | if (!arrays) |
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137 | return; |
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138 | |||
139 | vertDataEdgeFlags = arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj && |
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140 | arrays[VERT_ATTRIB_EDGEFLAG]->BufferObj->Name; |
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141 | if (vertDataEdgeFlags != st->vertdata_edgeflags) { |
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142 | st->vertdata_edgeflags = vertDataEdgeFlags; |
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143 | st->dirty.st |= ST_NEW_EDGEFLAGS_DATA; |
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144 | } |
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145 | } |
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146 | |||
147 | |||
148 | /*********************************************************************** |
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149 | * Update all derived state: |
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150 | */ |
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151 | |||
152 | void st_validate_state( struct st_context *st ) |
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153 | { |
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154 | struct st_state_flags *state = &st->dirty; |
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155 | GLuint i; |
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156 | |||
157 | /* Get Mesa driver state. */ |
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158 | st->dirty.st |= st->ctx->NewDriverState; |
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159 | st->ctx->NewDriverState = 0; |
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160 | |||
161 | check_attrib_edgeflag(st); |
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162 | |||
163 | if (state->mesa) |
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164 | st_flush_bitmap_cache(st); |
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165 | |||
166 | check_program_state( st ); |
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167 | |||
168 | st_manager_validate_framebuffers(st); |
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169 | |||
170 | if (state->st == 0) |
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171 | return; |
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172 | |||
173 | /*printf("%s %x/%x\n", __FUNCTION__, state->mesa, state->st);*/ |
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174 | |||
175 | #ifdef DEBUG |
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176 | if (1) { |
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177 | #else |
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178 | if (0) { |
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179 | #endif |
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180 | /* Debug version which enforces various sanity checks on the |
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181 | * state flags which are generated and checked to help ensure |
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182 | * state atoms are ordered correctly in the list. |
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183 | */ |
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184 | struct st_state_flags examined, prev; |
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185 | memset(&examined, 0, sizeof(examined)); |
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186 | prev = *state; |
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187 | |||
188 | for (i = 0; i < Elements(atoms); i++) { |
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189 | const struct st_tracked_state *atom = atoms[i]; |
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190 | struct st_state_flags generated; |
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191 | |||
192 | /*printf("atom %s %x/%x\n", atom->name, atom->dirty.mesa, atom->dirty.st);*/ |
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193 | |||
194 | if (!(atom->dirty.mesa || atom->dirty.st) || |
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195 | !atom->update) { |
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196 | printf("malformed atom %s\n", atom->name); |
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197 | assert(0); |
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198 | } |
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199 | |||
200 | if (check_state(state, &atom->dirty)) { |
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201 | atoms[i]->update( st ); |
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202 | /*printf("after: %x\n", atom->dirty.mesa);*/ |
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203 | } |
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204 | |||
205 | accumulate_state(&examined, &atom->dirty); |
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206 | |||
207 | /* generated = (prev ^ state) |
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208 | * if (examined & generated) |
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209 | * fail; |
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210 | */ |
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211 | xor_states(&generated, &prev, state); |
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212 | assert(!check_state(&examined, &generated)); |
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213 | prev = *state; |
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214 | } |
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215 | /*printf("\n");*/ |
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216 | |||
217 | } |
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218 | else { |
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219 | for (i = 0; i < Elements(atoms); i++) { |
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220 | if (check_state(state, &atoms[i]->dirty)) |
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221 | atoms[i]->update( st ); |
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222 | } |
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223 | } |
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224 | |||
225 | memset(state, 0, sizeof(*state)); |
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226 | }>> |
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227 |