Mercurial > hg > Members > kono > Cerium
annotate Renderer/Engine/task/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 | 42c94f85c779 |
| children | f7d78b3c1106 |
| 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" | |
| 8 #include "sys.h" | |
| 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); | |
|
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parents:
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24 |
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long -> memaddr (64 or 32)
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parents:
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diff
changeset
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25 if (!g->doneWrite) { |
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long -> memaddr (64 or 32)
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parents:
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diff
changeset
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26 free(g->linebuf); |
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42c94f85c779
long -> memaddr (64 or 32)
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
602
diff
changeset
|
27 } |
| 507 | 28 free(g); |
| 29 return 0; | |
| 30 } | |
| 31 | |
| 32 /** | |
| 33 * テクスチャは、TEXTURE_SPLIT_PIXEL^2 のブロックに分割する | |
| 34 * | |
| 35 * +---+---+---+---+---+---+ | |
| 36 * | 0 | 1 | 2 | 3 | 4 | 5 | | |
| 37 * +---+---+---+---+---+---+ | |
| 38 * | | | | | |11 | | |
| 39 * +---+---+---+---+---+---+ | |
| 40 * | | | | | |17 | | |
| 41 * +---+---+---+---+---+---+ | |
| 42 * | | | | | |23 | | |
| 43 * +---+---+---+---+---+---+ | |
| 44 * | | | | | |29 | | |
| 45 * +---+---+---+---+---+---+ | |
| 46 * | | | | | |35 | | |
| 47 * +---+---+---+---+---+---+ | |
| 48 * | |
| 49 * 一辺を TEXTURE_SPLIT とする | |
| 50 * 各ブロックの数字がブロックIDとなる。 | |
| 51 */ | |
| 52 | |
| 53 /** | |
| 54 * テクスチャの座標から、 | |
| 55 * テクスチャのどのブロックかを求める | |
| 56 * | |
| 57 * @param[in] tx X coordinates of texture | |
| 58 * @param[in] tx Y coordinates of texture | |
| 59 * @param[in] twidth Width of texture | |
| 60 * @return block ID | |
| 61 */ | |
| 62 static int | |
| 63 getTexBlock(int tx, int ty, int twidth) | |
| 64 { | |
| 65 int blockX, blockY; | |
| 66 | |
| 67 blockX = tx / TEXTURE_SPLIT_PIXEL; | |
| 68 blockY = ty / TEXTURE_SPLIT_PIXEL; | |
| 69 | |
| 70 return blockX + (twidth/TEXTURE_SPLIT_PIXEL)*blockY; | |
| 71 } | |
| 72 | |
| 73 /** | |
| 74 * block ID と、テクスチャの TOP address から | |
| 75 * (tx,ty) で使われるテクスチャの Tile addres を求める | |
| 76 * | |
| 77 * @param[in] tx X coordinates of texture | |
| 78 * @param[in] tx Y coordinates of texture | |
| 79 * @param[in] tw Width of texture | |
| 80 * @param[in] tex_addr_top (tx,ty) で使うテクスチャの先頭address | |
| 81 * @return block ID | |
| 82 */ | |
| 83 static memaddr | |
| 84 getTile(int tx, int ty, int tw, memaddr tex_addr_top) | |
| 85 { | |
| 86 int block = getTexBlock(tx, ty, tw); | |
| 87 return tex_addr_top + block * TEXTURE_BLOCK_SIZE * sizeof(uint32); | |
| 88 } | |
| 89 | |
| 90 /** | |
| 91 * FrameBuffer に書き込む rgb の領域初期化 | |
| 92 * | |
| 93 * @param width Width of Buffer | |
| 94 * @param height Height of Buffer | |
| 95 * @param rgb Initial value of RGB at Buffer | |
| 96 * @return Buffer | |
| 97 */ | |
| 98 static int* | |
| 99 linebuf_init(SchedTask *smanager, int width, int height, int rgb) | |
| 100 { | |
| 101 int *buf = (int*)smanager->allocate(sizeof(int)*width*height); | |
| 102 | |
| 103 for (int i = 0; i < width*height; i++) { | |
| 104 buf[i] = rgb; | |
| 105 } | |
| 106 | |
| 107 return buf; | |
| 108 } | |
| 109 | |
| 110 /** | |
| 111 * Z-Buffer の初期化 | |
| 112 * | |
| 113 * @param width Width of Z-Buffer | |
| 114 * @param height Height of Z-Buffer | |
| 115 * @return Z-Buffer | |
| 116 */ | |
| 117 static float* | |
| 118 zRow_init(SchedTask *smanager, int width, int height) | |
| 119 { | |
| 120 float *buf = (float*)smanager->allocate(sizeof(float)*width*height); | |
| 121 float def = 65535.0f; | |
| 122 | |
| 123 for (int i = 0; i < width*height; i++) { | |
| 124 buf[i] = def; | |
| 125 } | |
| 126 | |
| 127 return buf; | |
| 128 } | |
| 129 | |
| 130 | |
| 131 static uint32 | |
| 132 get_rgb(int tx, int ty, TilePtr tile) | |
| 133 { | |
| 134 uint32 *data = (uint32 *)tile->data; | |
| 135 return data[(TEXTURE_SPLIT_PIXEL)*ty+tx]; | |
| 136 } | |
| 137 | |
| 138 | |
| 139 static void | |
| 140 writebuffer(SchedTask *smanager, Gptr g, unsigned int display, | |
| 141 int buf_width, int height, int screen_width) | |
| 142 { | |
| 143 for (int i = 0; i < height; i++) { | |
| 144 smanager->dma_store(&g->linebuf[i*buf_width], | |
| 145 display + (sizeof(int)*screen_width*i), | |
| 146 sizeof(int)*buf_width, FB_STORE); | |
| 147 } | |
| 148 | |
| 149 g->doneWrite = 1; | |
| 150 } | |
| 151 | |
| 152 /** | |
| 153 * zRow と Linebuf を更新する | |
| 154 * | |
| 155 * @param zpos 更新する pixel のZ座標 | |
| 156 * @param rangex このタスクが処理する描画領域の x の長さ | |
| 157 * @param x pixel の、描画領域内での x 座標 | |
| 158 * @param y 〃 の、y 座標 | |
| 159 * @param tex_x pixel が使用するテクスチャの、Tile (8x8) 内での x 座標 | |
| 160 * @param tex_y 〃 の y 座標 | |
| 161 * @param tex_addr テクスチャのアドレス(MainMemory) | |
| 162 */ | |
| 163 static void | |
| 164 updateBuffer(Gptr g, float zpos, int rangex, int x, int y, int tex_x, int tex_y, | |
| 165 float normal_x, float normal_y, float normal_z, TilePtr tile) | |
| 166 { | |
| 167 | |
| 168 int color = get_rgb(tex_x, tex_y, tile); | |
| 169 /*下位4bitを抽出*/ | |
| 599 | 170 int alpha = color & 0x000000ff; |
| 507 | 171 /*完全に透けているか判断*/ |
| 172 int flag = (alpha != 0); | |
| 173 | |
| 174 color = infinity_light_calc(color,normal_x,normal_y,normal_z); | |
| 175 | |
| 176 g->zRow[x + (rangex*y)] = zpos*flag + g->zRow[x + (rangex*y)]*(1-flag); | |
| 177 g->linebuf[x + (rangex*y)] = color*flag + g->linebuf[x + (rangex*y)]*(1-flag); | |
| 178 | |
| 179 } | |
| 180 | |
| 181 /** | |
| 182 * 長さが 1 の Span の描画 (要するに 1 pixel) | |
| 183 * | |
| 184 * @param span Span | |
| 185 * @param startx 描画開始範囲 | |
| 186 * @param endx 描画終了範囲 | |
| 187 */ | |
| 188 static int | |
| 189 drawDot1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag) | |
| 190 { | |
| 191 int rangex = endx - startx + 1; | |
| 192 | |
| 193 float normal_x = span->normal_x; | |
| 194 float normal_y = span->normal_y; | |
| 195 float normal_z = span->normal_z; | |
| 196 | |
| 197 | |
| 198 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ | |
| 199 int tex_xpos, tex_ypos; | |
| 200 | |
| 201 // span の始点に対応する Texture の座標 (tex1, tey1) | |
| 202 float tex = span->tex_x1; | |
| 203 float tey = span->tex_y1; | |
| 204 | |
| 205 // span の始点に対応する z 座標 | |
| 206 float zpos = span->start_z; | |
| 207 | |
| 208 /* Tile 内での座標 */ | |
| 209 int localx = getLocalX(span->x-1); | |
| 210 int localy = getLocalY(span->y-1); | |
| 211 | |
| 212 /** | |
| 213 * (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 214 * そのブロックのアドレス(MainMemory) | |
| 215 */ | |
| 216 int tex_localx; | |
| 217 int tex_localy; | |
| 218 memaddr tex_addr; | |
| 219 | |
| 220 if (span->x < startx || endx < span->x) { | |
| 221 return -1; | |
| 222 } | |
| 223 | |
| 224 tex_xpos = (int)((span->tex_width-1) * tex); | |
| 225 tex_ypos = (int)((span->tex_height-1) * tey); | |
| 226 | |
| 227 if (zpos < g->zRow[localx + (rangex*localy)]) { | |
| 228 tex_addr = getTile(tex_xpos, tex_ypos, | |
| 229 span->tex_width, (memaddr)span->tex_addr); | |
| 230 tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 231 tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL; | |
| 232 | |
| 233 TilePtr tile = smanager->get_segment(tex_addr,g->tileList); | |
| 234 smanager->wait_segment(tile); | |
| 235 | |
| 236 updateBuffer(g, zpos, rangex, localx, localy, | |
| 237 tex_localx, tex_localy, | |
| 238 normal_x,normal_y,normal_z,tile); | |
| 239 } | |
| 240 | |
| 241 return -1; | |
| 242 } | |
| 243 | |
| 244 #if 0 | |
| 245 static void | |
| 246 drawDot2(SchedTask *smanager, SpanPtr span, int startx, int end, int js, int wait_tag) | |
| 247 { | |
| 248 //printf("%d\n", js); | |
| 249 } | |
| 250 #endif | |
| 251 | |
| 252 /** | |
| 253 * 長さが 1 より大きい Span の描画 | |
| 254 * | |
| 255 * 本来の目的として、この関数(drawLine1) では | |
| 256 * : 既に SPE 上に Tile のある pixel だけ描画 | |
| 257 * : それ以外は、ここで予め DMA load しておき、 | |
| 258 * : drawLine2 で一気に描画する | |
| 259 * 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 | |
| 260 * 今は drawLine1 で load -> wait -> rendering を全部やってます | |
| 261 * (rendering といっても、rendering buffer に書き込むだけで | |
| 262 * まだ main memory (frame buffer) に dma store してるわけではない) | |
| 263 * | |
| 264 * @param span Span | |
| 265 * @param startx 描画開始範囲 | |
| 266 * @param endx 描画終了範囲 | |
| 267 * @return 「span のどの位置まで rendering が終わったか」の x 座標 | |
| 268 */ | |
| 269 static int | |
| 270 drawLine1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag) | |
| 271 { | |
| 272 int x = span->x; | |
| 273 int rangex = endx - startx + 1; | |
| 274 int x_len = span->length_x; | |
| 275 | |
| 276 float normal_x = span->normal_x; | |
| 277 float normal_y = span->normal_y; | |
| 278 float normal_z = span->normal_z; | |
| 279 | |
| 280 | |
| 281 int js = (x < startx) ? startx - x : 0; | |
| 282 int je = (x + x_len > endx) ? endx - x : x_len; | |
| 283 | |
| 284 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ | |
| 285 int tex_xpos, tex_ypos; | |
| 286 | |
| 287 // span の始点に対応する座標 (tex1, tey1) | |
| 288 float tex1 = span->tex_x1; | |
| 289 float tey1 = span->tex_y1; | |
| 290 | |
| 291 // span の終点に対応する座標 (tex2, tey2) | |
| 292 float tex2 = span->tex_x2; | |
| 293 float tey2 = span->tex_y2; | |
| 294 | |
| 295 // span の始点、終点に対応する z 座標 | |
| 296 float zpos1 = span->start_z; | |
| 297 float zpos2 = span->end_z; | |
| 298 | |
| 299 // Tile 内での座標 | |
| 300 int localx, localy = getLocalY(span->y-1); | |
| 301 | |
| 302 int ret = je+1; | |
| 303 | |
| 304 //for (int j = js; j <= je; j++) { | |
| 305 for (int j = je; j >= js; j--) { | |
| 306 float tex_x, tex_y, tex_z; | |
| 307 | |
| 308 localx = getLocalX(x-1+j); | |
| 309 | |
| 310 tex_z = zpos1*(x_len-1-j)/(x_len-1) + zpos2*j/(x_len-1); | |
| 311 | |
| 312 tex_x = tex1*(x_len-1-j)/(x_len-1) + tex2*j/(x_len-1); | |
| 313 tex_y = tey1*(x_len-1-j)/(x_len-1) + tey2*j/(x_len-1); | |
| 314 if (tex_x > 1) tex_x = 1; | |
| 315 if (tex_x < 0) tex_x = 0; | |
| 316 if (tex_y > 1) tex_y = 1; | |
| 317 if (tex_y < 0) tex_y = 0; | |
| 318 tex_xpos = (int)((span->tex_width-1) * tex_x); | |
| 319 tex_ypos = (int)((span->tex_height-1) * tex_y); | |
| 320 | |
| 321 if (tex_z < g->zRow[localx + (rangex*localy)]) { | |
| 322 // (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 323 // そのブロックのアドレス(MainMemory) | |
| 324 memaddr tex_addr; | |
| 325 int tex_localx; | |
| 326 int tex_localy; | |
| 327 | |
| 328 tex_addr = getTile(tex_xpos, tex_ypos, | |
| 329 span->tex_width, (memaddr)span->tex_addr); | |
| 330 tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 331 tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL; | |
| 332 TilePtr tile = smanager->get_segment(tex_addr,g->tileList); | |
| 333 smanager->wait_segment(tile); | |
| 334 | |
| 335 updateBuffer(g, tex_z, rangex, localx, localy, | |
| 336 tex_localx, tex_localy, | |
| 337 normal_x, normal_y, normal_z, tile); | |
| 338 } | |
| 339 } | |
| 340 | |
| 341 return ret; | |
| 342 } | |
| 343 | |
| 344 static int | |
| 345 infinity_light_calc(int color,float normal_x, float normal_y, float normal_z) | |
| 346 { | |
| 347 unsigned char rgb[4]; | |
| 348 int light_rgb; | |
| 349 int flag; | |
| 350 float normal_vector[4] = {normal_x,normal_y,normal_z,0}; | |
| 351 // 光のベクトル,きめうちしちゃった。どうにかする | |
| 352 float light_vector[4] = {0,0,-1,0}; | |
| 353 float inner_product; | |
| 354 | |
| 355 // 引数で受け取った color の rgb 情報の抜き出し | |
| 356 rgb[0] = (color & 0xff000000) >> 24; | |
| 357 rgb[1] = (color & 0x00ff0000) >> 16; | |
| 358 rgb[2] = (color & 0x0000ff00) >> 8; | |
| 359 rgb[3] = (color & 0x000000ff); | |
| 360 | |
| 361 // 法線ベクトルと光源ベクトルとの内積をとる | |
| 362 inner_product = innerProduct(normal_vector,light_vector); | |
| 363 // 内積がマイナスの場合は色がない。 | |
| 364 flag = (inner_product > 0); | |
| 365 | |
| 366 // 内積を rgb にかけていく | |
| 367 rgb[0] = (unsigned char)(rgb[0]*inner_product*flag); | |
| 368 rgb[1] = (unsigned char)(rgb[1]*inner_product*flag); | |
| 369 rgb[2] = (unsigned char)(rgb[2]*inner_product*flag); | |
| 370 | |
| 371 //計算した rgb を light_rgb にまとめる。 | |
| 372 light_rgb = (rgb[0] << 24) + (rgb[1] << 16) + (rgb[2] << 8) + (rgb[3]); | |
| 373 | |
| 374 return light_rgb; | |
| 375 } | |
| 376 | |
| 377 | |
| 378 static int | |
| 379 run(SchedTask *smanager, void *rbuf, void *wbuf) | |
| 380 { | |
| 381 Gptr g = (Gptr)smanager->allocate(sizeof(G)); | |
| 382 | |
| 383 SpanPackPtr spack = (SpanPackPtr)smanager->get_input(0); | |
| 384 SpanPackPtr next_spack = (SpanPackPtr)smanager->allocate(sizeof(SpanPack)); | |
| 385 SpanPackPtr free_spack = next_spack; // next_spack の free() 用 | |
| 386 Span *span; | |
| 387 | |
| 388 Span nop_span; | |
| 389 nop_span.length_x = 1; | |
| 390 | |
| 391 int (*drawFunc1[2])(SchedTask *, Gptr, SpanPtr, int, int, int) = { | |
| 392 &drawDot1, &drawLine1 | |
| 393 }; | |
| 394 | |
| 395 uint32 display = smanager->get_param(0); | |
| 396 int screen_width = smanager->get_param(1); | |
| 397 int rangex_start = smanager->get_param(2); | |
| 398 int rangex_end = smanager->get_param(3); | |
| 399 | |
| 400 // このタスクが担当する x の範囲 | |
| 401 int rangex = rangex_end - rangex_start + 1; | |
| 402 | |
| 403 // y の範囲 | |
| 404 int rangey = smanager->get_param(4); | |
| 405 g->tileList = (TileListPtr)smanager->global_get(GLOBAL_TILE_LIST); | |
| 406 | |
| 407 g->zRow = zRow_init(smanager, rangex, rangey); | |
| 408 //linebuf = linebuf_init(rangex, rangey, 0x00ffffff); | |
| 409 g->linebuf = linebuf_init(smanager, rangex, rangey, 0); | |
| 410 | |
| 411 g->doneWrite = 0; | |
| 412 | |
| 413 int tl_tag[2] = {TEX_LOAD1, TEX_LOAD2}; | |
| 414 int tl_tag_flg1 = 0; | |
| 415 int tl_tag_flg2 = 1; | |
| 416 | |
| 417 do { | |
| 418 /** | |
| 419 * SpanPack->next が存在する場合、 | |
| 420 * 現在の SpanPack を処理してる間に | |
| 421 * 次の SpanPack の DMA 転送を行う | |
| 422 */ | |
| 423 if (spack->next != NULL) { | |
|
603
42c94f85c779
long -> memaddr (64 or 32)
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
602
diff
changeset
|
424 smanager->dma_load(next_spack, (memaddr)spack->next, |
| 507 | 425 sizeof(SpanPack), SPAN_PACK_LOAD); |
| 426 } else { | |
| 427 next_spack = NULL; | |
| 428 } | |
| 429 | |
| 430 SpanPtr resume_span = &nop_span; | |
| 431 int resume_span_x = 0; | |
| 432 | |
| 433 for (int t = 0; t < spack->info.size; t++) { | |
| 434 SpanPtr next_span; | |
| 435 int next_span_x; | |
| 436 | |
| 437 span = &spack->span[t]; | |
| 438 | |
| 439 /** | |
| 440 * span の長さによって、drawLine か drawDot を選択している | |
| 441 */ | |
| 442 next_span_x | |
| 443 = (*drawFunc1[(span->length_x != 1)])( | |
| 444 smanager, g, | |
| 445 span, rangex_start, rangex_end, tl_tag[tl_tag_flg1]); | |
| 446 next_span = span; | |
| 447 | |
| 448 resume_span = next_span; | |
| 449 resume_span_x = next_span_x; | |
| 450 | |
| 451 //smanager->dma_wait(tl_tag[tl_tag_flg1]); | |
| 452 | |
| 453 tl_tag_flg1 ^= 1; | |
| 454 tl_tag_flg2 ^= 1; | |
| 455 } | |
| 456 | |
| 457 // 現在 drawLine2、drawDot2 は機能してないので | |
| 458 //(this->*drawFunc2[(resume_span->length_x != 1)])( | |
| 459 //resume_span, rangex_start, rangex_end, resume_span_x, | |
| 460 //tl_tag[tl_tag_flg1]); | |
| 461 | |
| 462 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 463 | |
| 464 SpanPackPtr tmp_spack = spack; | |
| 465 spack = next_spack; | |
| 466 next_spack = tmp_spack; | |
| 467 } while (spack); | |
| 468 | |
| 469 writebuffer(smanager, g, display, rangex, rangey, screen_width); | |
| 470 | |
| 471 // linebuf は、writebuffer() の dma_store を wait する | |
| 472 // DrawSpan::~DrawSpan() 内で free する。 | |
| 473 //free(linebuf); | |
| 474 free(g->zRow); | |
| 475 | |
| 476 //FINISH: | |
| 477 /** | |
| 478 * goto FINISH; の時は reboot なので | |
| 479 * linebuf, zRow は free() しない | |
| 480 */ | |
| 481 | |
| 482 free(free_spack); | |
| 483 | |
|
614
4e44147d78ee
remove uncessary Task Name definision
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
603
diff
changeset
|
484 TaskPtr nextTask = smanager->create_task(DrawSpanEnd); |
|
603
42c94f85c779
long -> memaddr (64 or 32)
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
parents:
602
diff
changeset
|
485 nextTask->add_param((memaddr)g); |
| 507 | 486 smanager->wait_task(nextTask); |
| 487 | |
| 488 return 0; | |
| 489 } | |
| 490 | |
| 491 /* end */ |