Mercurial > hg > Members > kono > Cerium
annotate Renderer/Engine/spe/DrawSpan.cc @ 614:4e44147d78ee
remove uncessary Task Name definision
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Sat, 14 Nov 2009 18:21:14 +0900 |
| parents | e923249c318a |
| children | 360032cc500e |
| rev | line source |
|---|---|
| 507 | 1 #include <stdlib.h> |
| 2 #include <string.h> | |
| 3 #include "DrawSpan.h" | |
| 4 #include "polygon_pack.h" | |
| 5 #include "texture.h" | |
| 6 #include "viewer_types.h" | |
| 7 #include "Func.h" | |
| 594 | 8 #include "sys.h" |
| 507 | 9 #include "global_alloc.h" |
| 10 | |
| 11 SchedDefineTask(DrawSpan); | |
| 12 SchedDefineTask1(DrawSpanEnd,draw_span_end); | |
| 13 | |
| 14 #define TEX_LOAD1 0 | |
| 15 #define TEX_LOAD2 1 | |
| 16 #define SPAN_PACK_LOAD 2 | |
| 17 #define FB_STORE 3 | |
| 18 | |
| 19 static int | |
| 20 draw_span_end(SchedTask *s, void *rbuf, void *wbuf) | |
| 21 { | |
| 22 Gptr g = (Gptr)s->get_param(0); | |
| 23 s->dma_wait(FB_STORE); | |
| 24 free((void*)((int)g->linebuf*g->doneWrite)); | |
| 25 free(g); | |
| 26 return 0; | |
| 27 } | |
| 28 | |
| 29 /** | |
| 30 * テクスチャは、TEXTURE_SPLIT_PIXEL^2 のブロックに分割する | |
| 31 * | |
| 32 * +---+---+---+---+---+---+ | |
| 33 * | 0 | 1 | 2 | 3 | 4 | 5 | | |
| 34 * +---+---+---+---+---+---+ | |
| 35 * | | | | | |11 | | |
| 36 * +---+---+---+---+---+---+ | |
| 37 * | | | | | |17 | | |
| 38 * +---+---+---+---+---+---+ | |
| 39 * | | | | | |23 | | |
| 40 * +---+---+---+---+---+---+ | |
| 41 * | | | | | |29 | | |
| 42 * +---+---+---+---+---+---+ | |
| 43 * | | | | | |35 | | |
| 44 * +---+---+---+---+---+---+ | |
| 45 * | |
| 46 * 一辺を TEXTURE_SPLIT とする | |
| 47 * 各ブロックの数字がブロックIDとなる。 | |
| 48 */ | |
| 49 | |
| 50 /** | |
| 51 * テクスチャの座標から、 | |
| 52 * テクスチャのどのブロックかを求める | |
| 53 * | |
| 54 * @param[in] tx X coordinates of texture | |
| 55 * @param[in] tx Y coordinates of texture | |
| 56 * @param[in] twidth Width of texture | |
| 57 * @return block ID | |
| 58 */ | |
| 59 static int | |
| 60 getTexBlock(int tx, int ty, int twidth) | |
| 61 { | |
| 62 int blockX, blockY; | |
| 63 | |
| 64 blockX = tx / TEXTURE_SPLIT_PIXEL; | |
| 65 blockY = ty / TEXTURE_SPLIT_PIXEL; | |
| 66 | |
| 67 return blockX + (twidth/TEXTURE_SPLIT_PIXEL)*blockY; | |
| 68 } | |
| 69 | |
| 70 /** | |
| 71 * block ID と、テクスチャの TOP address から | |
| 72 * (tx,ty) で使われるテクスチャの Tile addres を求める | |
| 73 * | |
| 74 * @param[in] tx X coordinates of texture | |
| 75 * @param[in] tx Y coordinates of texture | |
| 76 * @param[in] tw Width of texture | |
| 77 * @param[in] tex_addr_top (tx,ty) で使うテクスチャの先頭address | |
| 78 * @return block ID | |
| 79 */ | |
| 80 static memaddr | |
| 81 getTile(int tx, int ty, int tw, memaddr tex_addr_top) | |
| 82 { | |
| 83 int block = getTexBlock(tx, ty, tw); | |
| 594 | 84 return tex_addr_top + block * TEXTURE_BLOCK_SIZE * sizeof(uint32); |
| 507 | 85 } |
| 86 | |
| 87 /** | |
| 88 * FrameBuffer に書き込む rgb の領域初期化 | |
| 89 * | |
| 90 * @param width Width of Buffer | |
| 91 * @param height Height of Buffer | |
| 92 * @param rgb Initial value of RGB at Buffer | |
| 93 * @return Buffer | |
| 94 */ | |
| 95 static int* | |
| 96 linebuf_init(SchedTask *smanager, int width, int height, int rgb) | |
| 97 { | |
| 98 int *buf = (int*)smanager->allocate(sizeof(int)*width*height); | |
| 99 | |
| 100 for (int i = 0; i < width*height; i++) { | |
| 101 buf[i] = rgb; | |
| 102 } | |
| 103 | |
| 104 return buf; | |
| 105 } | |
| 106 | |
| 107 /** | |
| 108 * Z-Buffer の初期化 | |
| 109 * | |
| 110 * @param width Width of Z-Buffer | |
| 111 * @param height Height of Z-Buffer | |
| 112 * @return Z-Buffer | |
| 113 */ | |
| 114 static float* | |
| 115 zRow_init(SchedTask *smanager, int width, int height) | |
| 116 { | |
| 117 float *buf = (float*)smanager->allocate(sizeof(float)*width*height); | |
| 118 float def = 65535.0f; | |
| 119 | |
| 594 | 120 for (int i = 0; i < width*height; i++) { |
| 121 buf[i] = def; | |
| 507 | 122 } |
| 123 | |
| 124 return buf; | |
| 125 } | |
| 126 | |
| 127 | |
| 128 static uint32 | |
| 129 get_rgb(int tx, int ty, TilePtr tile) | |
| 130 { | |
| 131 uint32 *data = (uint32 *)tile->data; | |
| 132 return data[(TEXTURE_SPLIT_PIXEL)*ty+tx]; | |
| 133 } | |
| 134 | |
| 135 | |
| 136 static void | |
| 137 writebuffer(SchedTask *smanager, Gptr g, unsigned int display, | |
| 594 | 138 int buf_width, int height, int screen_width) |
| 507 | 139 { |
| 140 for (int i = 0; i < height; i++) { | |
| 141 smanager->dma_store(&g->linebuf[i*buf_width], | |
| 142 display + (sizeof(int)*screen_width*i), | |
| 143 sizeof(int)*buf_width, FB_STORE); | |
| 144 } | |
| 145 | |
| 146 g->doneWrite = 1; | |
| 147 } | |
| 148 | |
| 149 /** | |
| 150 * zRow と Linebuf を更新する | |
| 151 * | |
| 152 * @param zpos 更新する pixel のZ座標 | |
| 153 * @param rangex このタスクが処理する描画領域の x の長さ | |
| 154 * @param x pixel の、描画領域内での x 座標 | |
| 155 * @param y 〃 の、y 座標 | |
| 156 * @param tex_x pixel が使用するテクスチャの、Tile (8x8) 内での x 座標 | |
| 157 * @param tex_y 〃 の y 座標 | |
| 158 * @param tex_addr テクスチャのアドレス(MainMemory) | |
| 159 */ | |
| 160 static void | |
| 594 | 161 updateBuffer(Gptr g, float zpos, int rangex, int x, int y, int tex_x, int tex_y, |
| 162 float normal_x, float normal_y, float normal_z, TilePtr tile) | |
| 507 | 163 { |
| 594 | 164 |
| 507 | 165 |
| 594 | 166 int color = get_rgb(tex_x, tex_y, tile); |
| 167 /*下位4bitを抽出*/ | |
| 599 | 168 int alpha = color & 0xff000000; |
| 594 | 169 /*完全に透けているか判断*/ |
| 170 int flag = (alpha != 0); | |
| 171 | |
| 172 color = infinity_light_calc(color,normal_x,normal_y,normal_z); | |
| 173 | |
| 174 g->zRow[x + (rangex*y)] = zpos*flag + g->zRow[x + (rangex*y)]*(1-flag); | |
| 175 g->linebuf[x + (rangex*y)] = color*flag + g->linebuf[x + (rangex*y)]*(1-flag); | |
| 176 | |
| 507 | 177 } |
| 178 | |
| 179 /** | |
| 180 * 長さが 1 の Span の描画 (要するに 1 pixel) | |
| 181 * | |
| 182 * @param span Span | |
| 183 * @param startx 描画開始範囲 | |
| 184 * @param endx 描画終了範囲 | |
| 185 */ | |
| 186 static int | |
| 187 drawDot1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag) | |
| 188 { | |
| 189 int rangex = endx - startx + 1; | |
| 190 | |
| 594 | 191 float normal_x = span->normal_x; |
| 192 float normal_y = span->normal_y; | |
| 193 float normal_z = span->normal_z; | |
| 194 | |
| 195 | |
| 507 | 196 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ |
| 197 int tex_xpos, tex_ypos; | |
| 198 | |
| 199 // span の始点に対応する Texture の座標 (tex1, tey1) | |
| 200 float tex = span->tex_x1; | |
| 201 float tey = span->tex_y1; | |
| 202 | |
| 203 // span の始点に対応する z 座標 | |
| 204 float zpos = span->start_z; | |
| 205 | |
| 206 /* Tile 内での座標 */ | |
| 207 int localx = getLocalX(span->x-1); | |
| 208 int localy = getLocalY(span->y-1); | |
| 209 | |
| 210 /** | |
| 211 * (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 212 * そのブロックのアドレス(MainMemory) | |
| 213 */ | |
| 214 int tex_localx; | |
| 215 int tex_localy; | |
| 216 memaddr tex_addr; | |
| 217 | |
| 218 if (span->x < startx || endx < span->x) { | |
| 219 return -1; | |
| 220 } | |
| 221 | |
| 222 tex_xpos = (int)((span->tex_width-1) * tex); | |
| 223 tex_ypos = (int)((span->tex_height-1) * tey); | |
| 224 | |
| 225 if (zpos < g->zRow[localx + (rangex*localy)]) { | |
| 226 tex_addr = getTile(tex_xpos, tex_ypos, | |
| 227 span->tex_width, (memaddr)span->tex_addr); | |
| 228 tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 229 tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL; | |
| 230 | |
| 594 | 231 TilePtr tile = smanager->get_segment(tex_addr,g->tileList); |
| 232 smanager->wait_segment(tile); | |
| 507 | 233 |
| 234 updateBuffer(g, zpos, rangex, localx, localy, | |
| 594 | 235 tex_localx, tex_localy, |
| 236 normal_x,normal_y,normal_z,tile); | |
| 507 | 237 } |
| 238 | |
| 239 return -1; | |
| 240 } | |
| 241 | |
| 594 | 242 #if 0 |
| 243 static void | |
| 244 drawDot2(SchedTask *smanager, SpanPtr span, int startx, int end, int js, int wait_tag) | |
| 245 { | |
| 246 //printf("%d\n", js); | |
| 247 } | |
| 248 #endif | |
| 507 | 249 |
| 250 /** | |
| 251 * 長さが 1 より大きい Span の描画 | |
| 252 * | |
| 253 * 本来の目的として、この関数(drawLine1) では | |
| 254 * : 既に SPE 上に Tile のある pixel だけ描画 | |
| 255 * : それ以外は、ここで予め DMA load しておき、 | |
| 256 * : drawLine2 で一気に描画する | |
| 257 * ってものだったんだけど、どうも上手く行かなかったので | |
| 258 * 今は drawLine1 で load -> wait -> rendering を全部やってます | |
| 259 * (rendering といっても、rendering buffer に書き込むだけで | |
| 260 * まだ main memory (frame buffer) に dma store してるわけではない) | |
| 261 * | |
| 262 * @param span Span | |
| 263 * @param startx 描画開始範囲 | |
| 264 * @param endx 描画終了範囲 | |
| 265 * @return 「span のどの位置まで rendering が終わったか」の x 座標 | |
| 266 */ | |
| 267 static int | |
| 268 drawLine1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag) | |
| 269 { | |
| 270 int x = span->x; | |
| 271 int rangex = endx - startx + 1; | |
| 272 int x_len = span->length_x; | |
| 273 | |
| 594 | 274 float normal_x = span->normal_x; |
| 275 float normal_y = span->normal_y; | |
| 276 float normal_z = span->normal_z; | |
| 277 | |
| 278 | |
| 507 | 279 int js = (x < startx) ? startx - x : 0; |
| 280 int je = (x + x_len > endx) ? endx - x : x_len; | |
| 281 | |
| 282 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ | |
| 283 int tex_xpos, tex_ypos; | |
| 284 | |
| 285 // span の始点に対応する座標 (tex1, tey1) | |
| 286 float tex1 = span->tex_x1; | |
| 287 float tey1 = span->tex_y1; | |
| 288 | |
| 289 // span の終点に対応する座標 (tex2, tey2) | |
| 290 float tex2 = span->tex_x2; | |
| 291 float tey2 = span->tex_y2; | |
| 292 | |
| 293 // span の始点、終点に対応する z 座標 | |
| 294 float zpos1 = span->start_z; | |
| 295 float zpos2 = span->end_z; | |
| 296 | |
| 297 // Tile 内での座標 | |
| 298 int localx, localy = getLocalY(span->y-1); | |
| 299 | |
| 300 int ret = je+1; | |
| 301 | |
| 302 //for (int j = js; j <= je; j++) { | |
| 303 for (int j = je; j >= js; j--) { | |
| 304 float tex_x, tex_y, tex_z; | |
| 305 | |
| 306 localx = getLocalX(x-1+j); | |
| 307 | |
| 308 tex_z = zpos1*(x_len-1-j)/(x_len-1) + zpos2*j/(x_len-1); | |
| 309 | |
| 310 tex_x = tex1*(x_len-1-j)/(x_len-1) + tex2*j/(x_len-1); | |
| 311 tex_y = tey1*(x_len-1-j)/(x_len-1) + tey2*j/(x_len-1); | |
| 312 if (tex_x > 1) tex_x = 1; | |
| 313 if (tex_x < 0) tex_x = 0; | |
| 314 if (tex_y > 1) tex_y = 1; | |
| 315 if (tex_y < 0) tex_y = 0; | |
| 316 tex_xpos = (int)((span->tex_width-1) * tex_x); | |
| 317 tex_ypos = (int)((span->tex_height-1) * tex_y); | |
| 318 | |
| 319 if (tex_z < g->zRow[localx + (rangex*localy)]) { | |
| 320 // (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 321 // そのブロックのアドレス(MainMemory) | |
| 322 memaddr tex_addr; | |
| 323 int tex_localx; | |
| 324 int tex_localy; | |
| 325 | |
| 326 tex_addr = getTile(tex_xpos, tex_ypos, | |
| 327 span->tex_width, (memaddr)span->tex_addr); | |
| 328 tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 329 tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL; | |
| 330 TilePtr tile = smanager->get_segment(tex_addr,g->tileList); | |
| 331 smanager->wait_segment(tile); | |
| 332 | |
| 333 updateBuffer(g, tex_z, rangex, localx, localy, | |
| 594 | 334 tex_localx, tex_localy, |
| 335 normal_x, normal_y, normal_z, tile); | |
| 507 | 336 } |
| 337 } | |
| 338 | |
| 339 return ret; | |
| 340 } | |
| 341 | |
| 594 | 342 float |
| 343 innerProduct(float *v0, float *v1) | |
| 344 { | |
| 345 return (v0[0]*v1[0] + v0[1]*v1[1] + v0[2]*v1[2]); | |
| 346 } | |
| 347 | |
| 348 static int | |
| 349 infinity_light_calc(int color,float normal_x, float normal_y, float normal_z) | |
| 507 | 350 { |
| 594 | 351 unsigned char rgb[4]; |
| 352 int light_rgb; | |
| 353 int flag; | |
| 354 float normal_vector[4] = {normal_x,normal_y,normal_z,0}; | |
| 355 // 光のベクトル,きめうちしちゃった。どうにかする | |
| 356 float light_vector[4] = {0,0,-1,0}; | |
| 357 float inner_product; | |
| 358 | |
| 359 // 引数で受け取った color の rgb 情報の抜き出し | |
| 360 rgb[3] = (color & 0xff000000) >> 24; | |
| 361 rgb[2] = (color & 0x00ff0000) >> 16; | |
| 362 rgb[1] = (color & 0x0000ff00) >> 8; | |
| 363 rgb[0] = (color & 0x000000ff); | |
| 364 | |
| 365 // 法線ベクトルと光源ベクトルとの内積をとる | |
| 366 inner_product = innerProduct(normal_vector,light_vector); | |
| 367 // 内積がマイナスの場合は色がない。 | |
| 368 flag = (inner_product > 0); | |
| 369 | |
| 370 // 内積を rgb にかけていく | |
| 371 rgb[0] = (unsigned char)(rgb[0]*inner_product*flag); | |
| 372 rgb[1] = (unsigned char)(rgb[1]*inner_product*flag); | |
| 373 rgb[2] = (unsigned char)(rgb[2]*inner_product*flag); | |
| 374 | |
| 375 //計算した rgb を light_rgb にまとめる。 | |
| 376 light_rgb = (rgb[3] << 24) + (rgb[2] << 16) + (rgb[1] << 8) + (rgb[0]); | |
| 377 | |
| 378 return light_rgb; | |
| 507 | 379 } |
| 594 | 380 |
| 507 | 381 |
| 382 static int | |
| 383 run(SchedTask *smanager, void *rbuf, void *wbuf) | |
| 384 { | |
| 385 Gptr g = (Gptr)smanager->allocate(sizeof(G)); | |
| 386 | |
| 387 SpanPackPtr spack = (SpanPackPtr)smanager->get_input(0); | |
| 388 SpanPackPtr next_spack = (SpanPackPtr)smanager->allocate(sizeof(SpanPack)); | |
| 389 SpanPackPtr free_spack = next_spack; // next_spack の free() 用 | |
| 390 Span *span; | |
| 391 | |
| 392 Span nop_span; | |
| 393 nop_span.length_x = 1; | |
| 394 | |
| 594 | 395 int (*drawFunc1[2])(SchedTask *, Gptr, SpanPtr, int, int, int) = { |
| 396 &drawDot1, &drawLine1 | |
| 397 }; | |
| 507 | 398 |
| 399 uint32 display = smanager->get_param(0); | |
| 400 int screen_width = smanager->get_param(1); | |
| 401 int rangex_start = smanager->get_param(2); | |
| 402 int rangex_end = smanager->get_param(3); | |
| 403 | |
| 404 // このタスクが担当する x の範囲 | |
| 405 int rangex = rangex_end - rangex_start + 1; | |
| 406 | |
| 407 // y の範囲 | |
| 408 int rangey = smanager->get_param(4); | |
| 409 g->tileList = (TileListPtr)smanager->global_get(GLOBAL_TILE_LIST); | |
| 410 | |
| 411 g->zRow = zRow_init(smanager, rangex, rangey); | |
| 412 //linebuf = linebuf_init(rangex, rangey, 0x00ffffff); | |
| 413 g->linebuf = linebuf_init(smanager, rangex, rangey, 0); | |
| 414 | |
| 415 g->doneWrite = 0; | |
| 416 | |
| 417 int tl_tag[2] = {TEX_LOAD1, TEX_LOAD2}; | |
| 418 int tl_tag_flg1 = 0; | |
| 419 int tl_tag_flg2 = 1; | |
| 420 | |
| 421 do { | |
| 422 /** | |
| 423 * SpanPack->next が存在する場合、 | |
| 424 * 現在の SpanPack を処理してる間に | |
| 425 * 次の SpanPack の DMA 転送を行う | |
| 426 */ | |
| 427 if (spack->next != NULL) { | |
| 594 | 428 smanager->dma_load(next_spack, (uint32)spack->next, |
| 507 | 429 sizeof(SpanPack), SPAN_PACK_LOAD); |
| 430 } else { | |
| 431 next_spack = NULL; | |
| 432 } | |
| 433 | |
| 434 SpanPtr resume_span = &nop_span; | |
| 435 int resume_span_x = 0; | |
| 436 | |
| 437 for (int t = 0; t < spack->info.size; t++) { | |
| 438 SpanPtr next_span; | |
| 439 int next_span_x; | |
| 440 | |
| 441 span = &spack->span[t]; | |
| 442 | |
| 443 /** | |
| 444 * span の長さによって、drawLine か drawDot を選択している | |
| 445 */ | |
| 594 | 446 next_span_x |
| 447 = (*drawFunc1[(span->length_x != 1)])( | |
| 448 smanager, g, | |
| 449 span, rangex_start, rangex_end, tl_tag[tl_tag_flg1]); | |
| 507 | 450 next_span = span; |
| 451 | |
| 452 resume_span = next_span; | |
| 453 resume_span_x = next_span_x; | |
| 454 | |
| 455 //smanager->dma_wait(tl_tag[tl_tag_flg1]); | |
| 456 | |
| 457 tl_tag_flg1 ^= 1; | |
| 458 tl_tag_flg2 ^= 1; | |
| 459 } | |
| 460 | |
| 461 // 現在 drawLine2、drawDot2 は機能してないので | |
| 462 //(this->*drawFunc2[(resume_span->length_x != 1)])( | |
| 463 //resume_span, rangex_start, rangex_end, resume_span_x, | |
| 464 //tl_tag[tl_tag_flg1]); | |
| 465 | |
| 466 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 467 | |
| 468 SpanPackPtr tmp_spack = spack; | |
| 469 spack = next_spack; | |
| 470 next_spack = tmp_spack; | |
| 471 } while (spack); | |
| 472 | |
| 473 writebuffer(smanager, g, display, rangex, rangey, screen_width); | |
| 474 | |
| 475 // linebuf は、writebuffer() の dma_store を wait する | |
| 476 // DrawSpan::~DrawSpan() 内で free する。 | |
| 477 //free(linebuf); | |
| 478 free(g->zRow); | |
| 479 | |
| 480 //FINISH: | |
| 481 /** | |
| 482 * goto FINISH; の時は reboot なので | |
| 483 * linebuf, zRow は free() しない | |
| 484 */ | |
| 485 | |
| 486 free(free_spack); | |
| 487 | |
|
614
4e44147d78ee
remove uncessary Task Name definision
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
599
diff
changeset
|
488 TaskPtr nextTask = smanager->create_task(DrawSpanEnd); |
| 507 | 489 nextTask->add_param((int)g); |
| 490 smanager->wait_task(nextTask); | |
| 491 | |
| 492 return 0; | |
| 493 } | |
| 594 | 494 |
| 495 /* end */ |