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annotate TaskManager/Test/test_render/task/CreateSpan.cpp @ 135:c65aee1528ef
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| author | gongo@charles.cr.ie.u-ryukyu.ac.jp |
|---|---|
| date | Thu, 27 Nov 2008 16:19:50 +0900 |
| parents | 92fcce4330f3 |
| children | 6cf991f28c6c |
| rev | line source |
|---|---|
| 109 | 1 #include "CreateSpan.h" |
| 2 #include "viewer_types.h" | |
| 3 | |
| 4 static const int SPAN_PACK_LOAD = 5; | |
| 5 static const int SPAN_PACK_STORE = 6; | |
| 6 static const int POLYGON_PACK_LOAD = 7; | |
| 7 | |
| 8 static SpanPackPtr spack = NULL; | |
| 9 static SpanPackPtr send_spack = NULL; | |
| 10 static int prev_index = 0; | |
| 11 | |
| 12 SchedDefineTask(CreateSpan); | |
| 13 | |
| 14 static float | |
| 15 calc(float f1, float f2,int i, float base) | |
| 16 { | |
| 17 float ans; | |
| 18 ans = f1/f2*i + base; | |
| 19 return ans; | |
| 20 } | |
| 21 | |
| 22 | |
| 23 /** | |
| 24 * TrianglePack から、vMin, vMid, vMax を求める | |
| 25 * | |
| 26 * @param [triPack] TrianglePack | |
| 27 * @param [vMin] [vMid] [vMax] | |
| 28 */ | |
| 29 static void | |
| 30 make_vertex(TrianglePack *triPack, | |
| 31 VertexPackPtr *vMin, VertexPackPtr *vMid, VertexPackPtr *vMax) | |
| 32 { | |
| 33 if (triPack->ver1.y <= triPack->ver2.y) { | |
| 34 if (triPack->ver2.y <= triPack->ver3.y) { | |
| 35 *vMin = &triPack->ver1; | |
| 36 *vMid = &triPack->ver2; | |
| 37 *vMax = &triPack->ver3; | |
| 38 } else if (triPack->ver3.y <= triPack->ver1.y) { | |
| 39 *vMin = &triPack->ver3; | |
| 40 *vMid = &triPack->ver1; | |
| 41 *vMax = &triPack->ver2; | |
| 42 } else { | |
| 43 *vMin = &triPack->ver1; | |
| 44 *vMid = &triPack->ver3; | |
| 45 *vMax = &triPack->ver2; | |
| 46 } | |
| 47 } else { | |
| 48 if (triPack->ver1.y <= triPack->ver3.y) { | |
| 49 *vMin = &triPack->ver2; | |
| 50 *vMid = &triPack->ver1; | |
| 51 *vMax = &triPack->ver3; | |
| 52 } else if (triPack->ver3.y <= triPack->ver2.y) { | |
| 53 *vMin = &triPack->ver3; | |
| 54 *vMid = &triPack->ver2; | |
| 55 *vMax = &triPack->ver1; | |
| 56 } else { | |
| 57 *vMin = &triPack->ver2; | |
| 58 *vMid = &triPack->ver3; | |
| 59 *vMax = &triPack->ver1; | |
| 60 } | |
| 61 } | |
| 62 } | |
| 63 | |
| 64 static void | |
| 65 make_vMid10(VertexPack *v, VertexPack *vMin, | |
| 66 VertexPack *vMid, VertexPack *vMax) | |
| 67 { | |
| 68 int d, d1; | |
| 69 | |
| 70 d = (int)(vMax->y - vMin->y); | |
| 71 d1 = (int)(vMid->y - vMin->y); | |
| 72 | |
| 73 v->tex_x = calc(vMax->tex_x - vMin->tex_x, d, d1, vMin->tex_x); | |
| 74 v->tex_y = calc(vMax->tex_y - vMin->tex_y, d, d1, vMin->tex_y); | |
| 75 v->x = calc(vMax->x - vMin->x, d, d1, vMin->x); | |
| 76 v->y = vMid->y; | |
| 77 v->z = calc(vMax->z - vMin->z, d, d1, vMin->z); | |
| 78 } | |
| 79 | |
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80 |
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81 /** |
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82 * x軸に水平な辺を持つ三角形ポリゴンから、 |
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83 * Span を抜き出す |
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84 */ |
| 109 | 85 void |
| 86 CreateSpan::half_triangle(SpanPackPtr *spackList, | |
| 87 int charge_y_top, int charge_y_end, | |
| 88 long *tex_addr, long tex_width, long tex_height, | |
| 89 VertexPack *vMin,VertexPack *vMid,VertexPack *vMid10) | |
| 90 { | |
| 91 float tmp_z,tmp_tex1, tmp_tex2 ,tmp_tey1,tmp_tey2; | |
| 92 float tmp_xpos,tmp_end,tmp_zpos; | |
| 93 float start_z, end_z; | |
| 94 float start_tex_x, end_tex_x, start_tex_y, end_tex_y; | |
| 95 int x, y, length; | |
| 96 | |
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97 /** |
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98 * 三角形ポリゴンをx軸に水平に二つに分けようとして |
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99 * ある一辺がすでに水平だった場合、つまり |
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100 * (環境によっては、back slash が 円マークかも) |
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101 * |
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102 * |\ |
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103 * | \ |
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104 * | \ |
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105 * ----- |
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106 * |
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107 * |
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108 * 上のようなポリゴンだった場合は、本来なら上の部分の三角形にだけ |
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109 * half_triangle の処理をするべきだが、現在の処理だと |
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110 * この half_triangle に「上の部分の三角形」と、 |
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111 * 「『下の部分の三角形と判断してしまった』直線」が来てしまう。 |
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112 * 直線の部分が来ると、calc() で 0 除算とかで、値不定で暴走するので |
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113 * 現在はこれで代用。 |
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114 * half_triangle 呼ぶ前にこれを判断できれば良いかもしれない。 |
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115 * てかこんなんでいいのかよ。。。 |
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116 * |
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117 */ |
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118 if (vMid10->x == vMin->x && vMid10->y == vMin->y) { |
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119 return; |
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120 } |
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121 |
| 135 | 122 #if 1 |
| 123 // これじゃないと | |
| 124 // テクスチャの貼りに微妙に隙間が。謎だ | |
| 109 | 125 int start_y = (int)vMid->y; |
| 126 int end_y = (int)vMin->y; | |
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127 #else |
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128 float start_y = vMid->y; |
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129 float end_y = vMin->y; |
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130 #endif |
| 109 | 131 float div_y = start_y - end_y; |
| 132 int k = 0; | |
| 133 int l = 1; | |
| 134 | |
| 135 SpanPackPtr tmp_spack; | |
| 136 | |
| 137 if (div_y < 0) { | |
| 138 div_y = -div_y; | |
| 139 k = 1; | |
| 140 l = -1; | |
| 141 } | |
| 142 | |
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143 for (int i = k; i < (int)div_y+1; i++) { |
| 109 | 144 y = (int)vMin->y + i*l; |
| 145 | |
| 146 /** | |
| 147 * 担当 y 範囲内 | |
| 148 */ | |
| 149 if (charge_y_top <= y && y <= charge_y_end) { | |
| 150 // 1..8 を index0, 9..16 を index1 にするために y を -1 | |
| 151 int index = (y-1) / split_screen_h; | |
| 152 | |
| 153 /** | |
| 154 * 違う SpanPack を扱う場合、 | |
| 155 * 現在の SpanPack をメインメモリに送り、 | |
| 156 * 新しい SpanPack を取ってくる | |
| 157 */ | |
| 158 if (index != prev_index) { | |
| 159 tmp_spack = spack; | |
| 160 spack = send_spack; | |
| 161 send_spack = tmp_spack; | |
| 162 | |
| 163 smanager->dma_wait(SPAN_PACK_STORE); | |
| 164 smanager->dma_store(send_spack, (uint32)spackList[prev_index], | |
| 165 sizeof(SpanPack), SPAN_PACK_STORE); | |
| 166 | |
| 167 smanager->dma_load(spack, (uint32)spackList[index], | |
| 168 sizeof(SpanPack), SPAN_PACK_LOAD); | |
| 169 prev_index = index; | |
| 170 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 171 } | |
| 172 | |
| 173 /** | |
| 174 * 書き込む SpanPack が満杯だったら | |
| 175 * メインメモリで allocate した領域 (next) を持ってきて | |
| 176 * 現在の spack->next につなぎ、next を次の spack とする。 | |
| 177 */ | |
| 178 if (spack->info.size >= MAX_SIZE_SPAN) { | |
| 179 SpanPackPtr next; | |
| 180 | |
| 181 mainMem_alloc(0, sizeof(SpanPack)); | |
| 182 mainMem_wait(); | |
| 183 next = (SpanPackPtr)mainMem_get(0); | |
| 184 | |
| 185 spack->next = next; | |
| 186 | |
| 187 tmp_spack = spack; | |
| 188 spack = send_spack; | |
| 189 send_spack = tmp_spack; | |
| 190 | |
| 191 smanager->dma_wait(SPAN_PACK_STORE); | |
| 192 smanager->dma_store(send_spack, (uint32)spackList[index], | |
| 193 sizeof(SpanPack), SPAN_PACK_STORE); | |
| 194 | |
| 195 spackList[index] = next; | |
| 196 | |
| 197 smanager->dma_load(spack, (uint32)spackList[index], | |
| 198 sizeof(SpanPack), SPAN_PACK_LOAD); | |
| 199 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 200 spack->init((index+1)*split_screen_h); | |
| 201 } | |
| 202 } else { | |
| 203 /** | |
| 204 * 担当範囲外だったら無視 | |
| 205 */ | |
| 206 continue; | |
| 207 } | |
| 208 | |
| 209 tmp_xpos = calc(vMid10->x - vMin->x ,div_y, i, vMin->x); | |
| 210 tmp_end = calc(vMid->x - vMin->x ,div_y, i, vMin->x); | |
| 211 tmp_z = calc(vMid10->z - vMin->z ,div_y, i, vMin->z); | |
| 212 tmp_zpos = calc(vMid->z - vMin->z ,div_y, i, vMin->z); | |
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213 |
| 109 | 214 tmp_tex1 =((i/(div_y)) * vMid10->tex_x) + |
| 215 ( ((div_y - i)/(div_y)) * vMin->tex_x); | |
| 216 tmp_tex2 =( (i/(div_y)) * vMid->tex_x) + | |
| 217 ( ((div_y - i)/(div_y)) * vMin->tex_x); | |
| 218 | |
| 219 tmp_tey1 =( (i/(div_y)) * vMid10->tex_y) + | |
| 220 ( ((div_y - i)/(div_y)) * vMin->tex_y); | |
| 221 tmp_tey2 =( (i/(div_y)) * vMid->tex_y) + | |
| 222 ( ((div_y - i)/(div_y)) * vMin->tex_y); | |
| 223 | |
| 224 if (tmp_xpos > tmp_end) { | |
| 225 x = (int)tmp_end; | |
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226 /** |
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227 * +1 は要らない気がする・・・ |
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228 */ |
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229 //length = (int)(tmp_xpos)-(int)(tmp_end)+1; |
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230 length = (int)(tmp_xpos)-(int)(tmp_end); |
| 109 | 231 start_z = tmp_zpos; |
| 232 end_z = tmp_z; | |
| 233 start_tex_x = tmp_tex2; | |
| 234 end_tex_x = tmp_tex1; | |
| 235 start_tex_y = tmp_tey2; | |
| 236 end_tex_y = tmp_tey1; | |
| 237 } else { | |
| 238 x = (int)tmp_xpos; | |
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239 //length = (int)(tmp_end)-(int)(tmp_xpos)+1; |
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240 length = (int)(tmp_end)-(int)(tmp_xpos); |
| 109 | 241 start_z = tmp_z; |
| 242 end_z = tmp_zpos; | |
| 243 start_tex_x = tmp_tex1; | |
| 244 end_tex_x = tmp_tex2; | |
| 245 start_tex_y = tmp_tey1; | |
| 246 end_tex_y = tmp_tey2; | |
| 247 } | |
| 248 | |
| 249 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 250 | |
| 251 Span *span = &spack->span[spack->info.size++]; | |
| 252 | |
| 253 span->tex_addr = tex_addr; | |
| 254 span->tex_width = tex_width; | |
| 255 span->tex_height = tex_height; | |
| 256 span->x = x; | |
| 257 span->y = y; | |
| 258 span->length_x = length; | |
| 259 span->start_z = start_z; | |
| 260 span->end_z = end_z; | |
| 261 span->tex_x1 = start_tex_x; | |
| 262 span->tex_x2 = end_tex_x; | |
| 263 span->tex_y1 = start_tex_y; | |
| 264 span->tex_y2 = end_tex_y; | |
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265 |
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266 // TilePtr の計算 |
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267 // tix, tiy (Tile 内での x, y) |
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268 // |
| 109 | 269 } |
| 270 } | |
| 271 | |
| 272 | |
| 273 int | |
| 274 CreateSpan::run(void *rbuf, void *wbuf) | |
| 275 { | |
| 276 PolygonPack *pp = (PolygonPack*)smanager->get_input(0); | |
| 277 PolygonPack *next_pp = | |
| 278 (PolygonPack*)smanager->allocate(sizeof(PolygonPack)); | |
| 279 PolygonPack *free_pp = next_pp; | |
| 280 PolygonPack *tmp_pp; | |
| 281 | |
| 282 TrianglePackPtr triPack; | |
| 283 VertexPackPtr vMin, vMid, vMax; | |
| 284 VertexPackPtr vMid10 | |
| 285 = (VertexPackPtr)smanager->allocate(sizeof(VertexPack)); | |
| 286 | |
| 287 SpanPackPtr *spackList = (SpanPackPtr*)smanager->get_input(1); | |
| 288 spack = (SpanPackPtr)smanager->get_input(2); | |
| 289 send_spack = (SpanPackPtr)smanager->allocate(sizeof(SpanPack)); | |
| 290 prev_index = get_param(0); | |
| 291 | |
| 292 // spack と send_spack は swap しながら DMA を繰り返すので | |
| 293 // 自分で allocate した send_spack を覚えてないといけない | |
| 294 SpanPackPtr free_spack = send_spack; | |
| 295 | |
| 296 int charge_y_top = get_param(1); | |
| 297 int charge_y_end = get_param(2); | |
| 298 | |
| 299 do { | |
| 300 if (pp->next != NULL) { | |
| 301 smanager->dma_load(next_pp, (uint32)pp->next, | |
| 302 sizeof(PolygonPack), POLYGON_PACK_LOAD); | |
| 303 } else { | |
| 304 next_pp = NULL; | |
| 305 } | |
| 306 | |
| 307 for (int i = 0; i < pp->info.size; i++) { | |
| 308 triPack = &pp->tri[i]; | |
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309 |
| 109 | 310 #if 0 |
| 311 make_vertex(triPack, &vMin, &vMid, &vMax); | |
| 312 #else | |
| 313 if (triPack->ver1.y <= triPack->ver2.y) { | |
| 314 if (triPack->ver2.y <= triPack->ver3.y) { | |
| 315 vMin = &triPack->ver1; | |
| 316 vMid = &triPack->ver2; | |
| 317 vMax = &triPack->ver3; | |
| 318 } else if (triPack->ver3.y <= triPack->ver1.y) { | |
| 319 vMin = &triPack->ver3; | |
| 320 vMid = &triPack->ver1; | |
| 321 vMax = &triPack->ver2; | |
| 322 } else { | |
| 323 vMin = &triPack->ver1; | |
| 324 vMid = &triPack->ver3; | |
| 325 vMax = &triPack->ver2; | |
| 326 } | |
| 327 } else { | |
| 328 if (triPack->ver1.y <= triPack->ver3.y) { | |
| 329 vMin = &triPack->ver2; | |
| 330 vMid = &triPack->ver1; | |
| 331 vMax = &triPack->ver3; | |
| 332 } else if (triPack->ver3.y <= triPack->ver2.y) { | |
| 333 vMin = &triPack->ver3; | |
| 334 vMid = &triPack->ver2; | |
| 335 vMax = &triPack->ver1; | |
| 336 } else { | |
| 337 vMin = &triPack->ver2; | |
| 338 vMid = &triPack->ver3; | |
| 339 vMax = &triPack->ver1; | |
| 340 } | |
| 341 } | |
| 342 #endif | |
| 343 make_vMid10(vMid10, vMin, vMid, vMax); | |
|
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344 |
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345 /** |
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346 * ポリゴンを、x軸に水平に分割して二つの三角形を作り、 |
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347 * それぞれから Span を求める |
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348 */ |
| 109 | 349 half_triangle(spackList, charge_y_top, charge_y_end, |
| 350 triPack->tex_addr, triPack->tex_width, | |
| 351 triPack->tex_height, vMin, vMid, vMid10); | |
| 352 half_triangle(spackList, charge_y_top, charge_y_end, | |
| 353 pp->tri[0].tex_addr, pp->tri[0].tex_width, | |
| 354 pp->tri[0].tex_height, vMax, vMid, vMid10); | |
| 355 } | |
| 356 | |
| 357 smanager->dma_wait(POLYGON_PACK_LOAD); | |
| 358 | |
| 359 tmp_pp = pp; | |
| 360 pp = next_pp; | |
| 361 next_pp = tmp_pp; | |
| 362 } while (pp); | |
| 363 | |
| 364 smanager->dma_wait(SPAN_PACK_STORE); | |
| 365 smanager->dma_store(spack, (uint32)spackList[prev_index], | |
| 366 sizeof(SpanPack), SPAN_PACK_STORE); | |
| 367 smanager->dma_wait(SPAN_PACK_STORE); | |
| 368 | |
| 369 free(free_pp); | |
| 370 free(free_spack); | |
| 371 free(vMid10); | |
| 372 | |
| 373 return 0; | |
| 374 } |