Mercurial > hg > Game > Cerium
annotate Renderer/Engine/task/DrawSpan.cc @ 1276:e92f00ed2fc0 draft
apply view matrix to normal vector
| author | Yutaka_Kinjyo <yutaka@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 22 Nov 2011 19:26:18 +0900 |
| parents | b417abf82193 |
| children | 4ba9b622073d |
| rev | line source |
|---|---|
| 539 | 1 #include <stdlib.h> |
| 2 #include <string.h> | |
| 3 #include "DrawSpan.h" | |
| 4 #include "polygon_pack.h" | |
| 860 | 5 #include "task_texture.h" |
| 539 | 6 #include "viewer_types.h" |
| 7 #include "Func.h" | |
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8 #include "SchedTask.h" |
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9 #include "Tapestry.h" |
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10 #include "SpanPack.h" |
| 1050 | 11 #include "matrix_calc.h" |
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12 |
| 623 | 13 #if (__LITTLE_ENDIAN__) |
| 14 #define LITTLEENDIAN 1 | |
| 15 #else | |
| 16 #define LITTLEENDIAN 0 | |
| 17 #endif | |
| 539 | 18 |
| 19 SchedDefineTask(DrawSpan); | |
| 20 | |
| 21 #define TEX_LOAD1 0 | |
| 22 #define TEX_LOAD2 1 | |
| 23 #define SPAN_PACK_LOAD 2 | |
| 24 #define FB_STORE 3 | |
| 25 | |
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26 typedef struct { |
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27 int **linebuf; |
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28 float *zRow; |
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29 TileListPtr tileList; |
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30 int doneWrite; |
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31 } G, *Gptr; |
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32 |
| 1158 | 33 /*double buffering するために、保持すべき状態*/ |
| 34 typedef struct DrawParam { | |
| 35 | |
| 36 float tex_z; | |
| 37 int localx; | |
| 38 int tex_localx; | |
| 39 int tex_localy; | |
| 40 TilePtr tile; | |
| 41 float world_z; | |
| 1159 | 42 int x; |
| 1158 | 43 int display; //他のオブジェクトの裏にいて表示するかしないかのflag |
| 44 | |
| 45 } DrawParam, *DrawParamPtr; | |
| 46 | |
| 47 | |
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48 static int** linebuf_init(SchedTask *smanager, int width, int height, int rgb); |
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49 static float* zRow_init(SchedTask *smanager, int width, int height); |
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50 // static TilePtr set_rgb(memaddr addr, int wait_tag); |
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51 // static void set_rgbs(memaddr addr, uint32 *max_addr, int wait_tag); |
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52 static uint32 get_rgb(int tx, int ty, TilePtr tile); |
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53 // static TilePtr isAvailableTile(memaddr addr); |
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54 static memaddr getTile(int tx, int ty, int tw, memaddr tex_addr_top); |
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55 static int getTexBlock(int tx, int ty, int twidth); |
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56 |
| 738 | 57 static void updateBuffer(Gptr g, float zpos, int rangex, int loaclx, int localy, |
| 58 int tex_x, int tex_y, float normal_x, float nomral_x, float normal_z, | |
| 59 TilePtr tile, int world_x, int world_y, float world_z,SchedTask *smanager); | |
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60 |
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61 // static void reboot(SpanPackPtr spack, int cur_span_x); |
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62 |
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63 static int drawDot1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag); |
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64 //static void drawDot2(SchedTask *smanager, SpanPtr span, int startx, int endx, int js, int wait_tag); |
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65 static int drawLine1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag); |
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66 // static void drawLine2(SchedTask *smanager, SpanPtr span, int startx, int endx, int js, int wait_tag); |
| 738 | 67 |
| 1158 | 68 static int getDrawParam(SchedTask *smanager, Gptr g, SpanPtr span, int localy, int startx, |
| 69 int endx, int index, int j, DrawParamPtr param); | |
| 1157 | 70 |
| 738 | 71 static int infinity_light_calc(int color,float normal_x, float normal_y, float normal_z, |
| 72 SchedTask *smanager,int x, int y, float z, int world_x, int world_y, float world_z); | |
| 73 | |
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74 |
| 1157 | 75 |
| 76 | |
| 621 | 77 static float |
| 78 innerProduct1(float *v0, float *v1) | |
| 79 { | |
| 845 | 80 return (v0[0]*v1[0] + v0[1]*v1[1] + v0[2]*v1[2]); |
| 621 | 81 } |
| 82 | |
| 539 | 83 |
| 84 /** | |
| 85 * テクスチャは、TEXTURE_SPLIT_PIXEL^2 のブロックに分割する | |
| 86 * | |
| 87 * +---+---+---+---+---+---+ | |
| 88 * | 0 | 1 | 2 | 3 | 4 | 5 | | |
| 89 * +---+---+---+---+---+---+ | |
| 90 * | | | | | |11 | | |
| 91 * +---+---+---+---+---+---+ | |
| 92 * | | | | | |17 | | |
| 93 * +---+---+---+---+---+---+ | |
| 94 * | | | | | |23 | | |
| 95 * +---+---+---+---+---+---+ | |
| 96 * | | | | | |29 | | |
| 97 * +---+---+---+---+---+---+ | |
| 98 * | | | | | |35 | | |
| 99 * +---+---+---+---+---+---+ | |
| 100 * | |
| 101 * 一辺を TEXTURE_SPLIT とする | |
| 102 * 各ブロックの数字がブロックIDとなる。 | |
| 103 */ | |
| 104 | |
| 105 /** | |
| 106 * テクスチャの座標から、 | |
| 107 * テクスチャのどのブロックかを求める | |
| 108 * | |
| 109 * @param[in] tx X coordinates of texture | |
| 110 * @param[in] tx Y coordinates of texture | |
| 111 * @param[in] twidth Width of texture | |
| 112 * @return block ID | |
| 113 */ | |
| 114 static int | |
| 115 getTexBlock(int tx, int ty, int twidth) | |
| 116 { | |
| 117 int blockX, blockY; | |
| 118 | |
| 119 blockX = tx / TEXTURE_SPLIT_PIXEL; | |
| 120 blockY = ty / TEXTURE_SPLIT_PIXEL; | |
| 121 | |
| 122 return blockX + (twidth/TEXTURE_SPLIT_PIXEL)*blockY; | |
| 123 } | |
| 124 | |
| 125 /** | |
| 126 * block ID と、テクスチャの TOP address から | |
| 127 * (tx,ty) で使われるテクスチャの Tile addres を求める | |
| 128 * | |
| 129 * @param[in] tx X coordinates of texture | |
| 130 * @param[in] tx Y coordinates of texture | |
| 131 * @param[in] tw Width of texture | |
| 132 * @param[in] tex_addr_top (tx,ty) で使うテクスチャの先頭address | |
| 133 * @return block ID | |
| 134 */ | |
| 135 static memaddr | |
| 136 getTile(int tx, int ty, int tw, memaddr tex_addr_top) | |
| 137 { | |
| 138 int block = getTexBlock(tx, ty, tw); | |
| 139 return tex_addr_top + block * TEXTURE_BLOCK_SIZE * sizeof(uint32); | |
| 140 } | |
| 141 | |
| 142 /** | |
| 143 * FrameBuffer に書き込む rgb の領域初期化 | |
| 144 * | |
| 145 * @param width Width of Buffer | |
| 146 * @param height Height of Buffer | |
| 147 * @param rgb Initial value of RGB at Buffer | |
| 148 * @return Buffer | |
| 149 */ | |
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150 static int ** |
| 539 | 151 linebuf_init(SchedTask *smanager, int width, int height, int rgb) |
| 152 { | |
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153 int **linebuf = (int**)smanager->allocate(height*sizeof(int*)); |
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154 for(int h = 0;h<height;h++) { |
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155 int *buf = linebuf[h] = (int*)smanager->get_output(h); |
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156 for (int i = 0; i < width; i++) { |
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157 buf[i] = rgb; |
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158 } |
| 539 | 159 } |
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160 return linebuf; |
| 539 | 161 } |
| 162 | |
| 163 /** | |
| 164 * Z-Buffer の初期化 | |
| 165 * | |
| 166 * @param width Width of Z-Buffer | |
| 167 * @param height Height of Z-Buffer | |
| 168 * @return Z-Buffer | |
| 169 */ | |
| 170 static float* | |
| 171 zRow_init(SchedTask *smanager, int width, int height) | |
| 172 { | |
| 173 float *buf = (float*)smanager->allocate(sizeof(float)*width*height); | |
| 174 float def = 65535.0f; | |
| 175 | |
| 176 for (int i = 0; i < width*height; i++) { | |
| 177 buf[i] = def; | |
| 178 } | |
| 179 | |
| 180 return buf; | |
| 181 } | |
| 182 | |
| 183 | |
| 184 static uint32 | |
| 185 get_rgb(int tx, int ty, TilePtr tile) | |
| 186 { | |
| 187 uint32 *data = (uint32 *)tile->data; | |
| 188 return data[(TEXTURE_SPLIT_PIXEL)*ty+tx]; | |
| 189 } | |
| 190 | |
| 191 | |
| 192 | |
| 193 /** | |
| 194 * zRow と Linebuf を更新する | |
| 195 * | |
| 196 * @param zpos 更新する pixel のZ座標 | |
| 197 * @param rangex このタスクが処理する描画領域の x の長さ | |
| 198 * @param x pixel の、描画領域内での x 座標 | |
| 199 * @param y 〃 の、y 座標 | |
| 200 * @param tex_x pixel が使用するテクスチャの、Tile (8x8) 内での x 座標 | |
| 201 * @param tex_y 〃 の y 座標 | |
| 202 * @param tex_addr テクスチャのアドレス(MainMemory) | |
| 203 */ | |
| 204 static void | |
| 738 | 205 updateBuffer(Gptr g, float zpos, int rangex, int localx, int localy, int tex_x, int tex_y, |
| 206 float normal_x, float normal_y, float normal_z, TilePtr tile, | |
| 207 int world_x, int world_y, float world_z, SchedTask *smanager) | |
| 539 | 208 { |
| 209 | |
| 210 int color = get_rgb(tex_x, tex_y, tile); | |
| 211 /*下位4bitを抽出*/ | |
| 623 | 212 #if LITTLEENDIAN |
| 599 | 213 int alpha = color & 0x000000ff; |
| 619 | 214 #else |
| 215 int alpha = color & 0xff000000; | |
| 216 #endif | |
| 845 | 217 |
| 1054 | 218 |
| 219 //完全に透けているか判断 | |
| 1031 | 220 int flag = (alpha != 0); |
| 1054 | 221 int *light_sysswitch = (int*)smanager->global_get(LightSysSwitch); |
| 222 //smanager->printf("sys %d\n",light_sysswitch); | |
| 539 | 223 |
| 1054 | 224 if ( *light_sysswitch == 1 && flag) { |
| 225 color = infinity_light_calc(color,normal_x,normal_y,normal_z, | |
| 226 smanager,localx,localy,zpos, | |
| 227 world_x,world_y,world_z); | |
| 855 | 228 } |
| 539 | 229 |
| 738 | 230 g->zRow[localx + (rangex*localy)] = zpos*flag + g->zRow[localx + (rangex*localy)]*(1-flag); |
| 1054 | 231 int *point = &g->linebuf[localy][localx]; |
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232 *point = color*flag + *point *(1-flag); |
| 539 | 233 |
| 1054 | 234 |
| 539 | 235 } |
| 236 | |
| 237 /** | |
| 238 * 長さが 1 の Span の描画 (要するに 1 pixel) | |
| 239 * | |
| 240 * @param span Span | |
| 241 * @param startx 描画開始範囲 | |
| 242 * @param endx 描画終了範囲 | |
| 243 */ | |
| 244 static int | |
| 245 drawDot1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag) | |
| 246 { | |
| 247 int rangex = endx - startx + 1; | |
| 248 | |
| 249 float normal_x = span->normal_x; | |
| 250 float normal_y = span->normal_y; | |
| 251 float normal_z = span->normal_z; | |
| 252 | |
| 253 | |
| 254 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ | |
| 255 int tex_xpos, tex_ypos; | |
| 256 | |
| 257 // span の始点に対応する Texture の座標 (tex1, tey1) | |
| 258 float tex = span->tex_x1; | |
| 259 float tey = span->tex_y1; | |
| 260 | |
| 261 // span の始点に対応する z 座標 | |
| 262 float zpos = span->start_z; | |
| 263 | |
| 264 /* Tile 内での座標 */ | |
| 265 int localx = getLocalX(span->x-1); | |
| 266 int localy = getLocalY(span->y-1); | |
| 267 | |
| 268 /** | |
| 269 * (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 270 * そのブロックのアドレス(MainMemory) | |
| 271 */ | |
| 272 int tex_localx; | |
| 273 int tex_localy; | |
| 274 memaddr tex_addr; | |
| 275 | |
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276 if (span->x < startx || endx < span->x || ! span->tex_addr) { |
| 539 | 277 return -1; |
| 278 } | |
| 279 | |
| 280 tex_xpos = (int)((span->tex_width-1) * tex); | |
| 281 tex_ypos = (int)((span->tex_height-1) * tey); | |
| 282 | |
| 283 if (zpos < g->zRow[localx + (rangex*localy)]) { | |
| 1157 | 284 |
| 539 | 285 tex_addr = getTile(tex_xpos, tex_ypos, |
| 286 span->tex_width, (memaddr)span->tex_addr); | |
| 287 tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 288 tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL; | |
| 289 | |
| 290 TilePtr tile = smanager->get_segment(tex_addr,g->tileList); | |
| 291 smanager->wait_segment(tile); | |
| 292 | |
| 293 updateBuffer(g, zpos, rangex, localx, localy, | |
| 294 tex_localx, tex_localy, | |
| 738 | 295 normal_x,normal_y,normal_z,tile, |
| 296 span->x, span->y, zpos, smanager); | |
| 539 | 297 } |
| 298 | |
| 299 return -1; | |
| 300 } | |
| 301 | |
| 302 #if 0 | |
| 303 static void | |
| 304 drawDot2(SchedTask *smanager, SpanPtr span, int startx, int end, int js, int wait_tag) | |
| 305 { | |
| 306 //printf("%d\n", js); | |
| 307 } | |
| 308 #endif | |
| 309 | |
| 310 /** | |
| 311 * 長さが 1 より大きい Span の描画 | |
| 312 * | |
| 313 * 本来の目的として、この関数(drawLine1) では | |
| 314 * : 既に SPE 上に Tile のある pixel だけ描画 | |
| 315 * : それ以外は、ここで予め DMA load しておき、 | |
| 316 * : drawLine2 で一気に描画する | |
| 317 * 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 | |
| 318 * 今は drawLine1 で load -> wait -> rendering を全部やってます | |
| 319 * (rendering といっても、rendering buffer に書き込むだけで | |
| 320 * まだ main memory (frame buffer) に dma store してるわけではない) | |
| 321 * | |
| 322 * @param span Span | |
| 323 * @param startx 描画開始範囲 | |
| 324 * @param endx 描画終了範囲 | |
| 325 * @return 「span のどの位置まで rendering が終わったか」の x 座標 | |
| 326 */ | |
| 327 static int | |
| 328 drawLine1(SchedTask *smanager, Gptr g, SpanPtr span, int startx, int endx, int wait_tag) | |
| 329 { | |
| 1157 | 330 |
| 1163 | 331 |
| 332 #ifdef PIPE_TILE | |
| 333 | |
| 1157 | 334 int cur = 0; |
| 1159 | 335 DrawParam param[2]; |
| 539 | 336 |
| 1158 | 337 int rangex = endx - startx + 1; |
| 539 | 338 |
| 1158 | 339 int js = (span->x < startx) ? startx - span->x : 0; |
| 340 int je = (span->x + span->length_x > endx) ? endx - span->x : span->length_x; | |
| 539 | 341 |
| 1157 | 342 int localy = getLocalY(span->y-1); |
| 539 | 343 |
| 344 int ret = je+1; | |
| 1159 | 345 int index = 1; |
| 539 | 346 |
| 1163 | 347 |
| 1158 | 348 getDrawParam(smanager, g, span, localy, startx, endx, index, je, ¶m[cur]); |
| 1157 | 349 |
| 1158 | 350 //for (int j = je; j >= js; j--) { <-もとはこうで、一度先にtextureをloadしておくから、je-1にしてる |
| 1157 | 351 for (int j = je-1; j >= js; j--) { |
| 539 | 352 |
| 1158 | 353 index += 1; |
| 1157 | 354 |
| 1158 | 355 getDrawParam(smanager, g, span, localy, startx, endx, index, j, ¶m[cur^1]); //次のループで使用するtexture |
| 1157 | 356 |
| 1158 | 357 if (param[cur].display) { |
| 358 smanager->wait_segment(param[cur].tile); // 前でload命令を出しておいたtextureを待つ。 | |
| 1157 | 359 |
| 1158 | 360 updateBuffer(g, param[cur].tex_z, rangex, param[cur].localx, localy, |
| 361 param[cur].tex_localx, param[cur].tex_localy, | |
| 362 span->normal_x, span->normal_y, span->normal_z, param[cur].tile, | |
| 1159 | 363 param[cur].x, span->y, param[cur].world_z, smanager); |
| 1157 | 364 } |
| 365 | |
| 366 cur ^= 1; | |
| 539 | 367 |
| 1157 | 368 } |
| 1159 | 369 /* |
| 1158 | 370 if (param[cur].display) { |
| 371 smanager->wait_segment(param[cur].tile); | |
| 372 | |
| 373 updateBuffer(g, param[cur].tex_z, rangex, param[cur].localx, localy, | |
| 374 param[cur].tex_localx, param[cur].tex_localy, | |
| 375 span->normal_x, span->normal_y, span->normal_z, param[cur].tile, | |
| 1159 | 376 param[cur].x, span->y, param[cur].world_z, smanager); |
| 1158 | 377 |
| 378 } | |
| 1159 | 379 */ |
| 1158 | 380 |
| 1163 | 381 |
| 382 #else | |
| 383 | |
| 384 | |
| 385 int x = span->x; | |
| 386 int rangex = endx - startx + 1; | |
| 387 int x_len = span->length_x; | |
| 388 | |
| 389 float normal_x = span->normal_x; | |
| 390 float normal_y = span->normal_y; | |
| 391 float normal_z = span->normal_z; | |
| 392 | |
| 393 int js = (x < startx) ? startx - x : 0; | |
| 394 int je = (x + x_len > endx) ? endx - x : x_len; | |
| 395 | |
| 396 // span の始点に対応する座標 (tex1, tey1) | |
| 397 float tex1 = span->tex_x1; | |
| 398 float tey1 = span->tex_y1; | |
| 399 | |
| 400 // span の終点に対応する座標 (tex2, tey2) | |
| 401 float tex2 = span->tex_x2; | |
| 402 float tey2 = span->tex_y2; | |
| 403 | |
| 404 // span の始点、終点に対応する z 座標 | |
| 405 float zpos1 = span->start_z; | |
| 406 float zpos2 = span->end_z; | |
| 407 | |
| 408 //spanを右から左に見ていくうちに、zが下がるのか、上がっていくのか。 | |
| 409 float z_inclination = (zpos2 - zpos1) / x_len; | |
| 410 float world_z = zpos2; | |
| 411 | |
| 412 // Tile 内での座標 | |
| 413 int localx, localy = getLocalY(span->y-1); | |
| 414 | |
| 415 int ret = je+1; | |
| 416 | |
| 417 //for (int j = js; j <= je; j++) { | |
| 418 for (int j = je; j >= js; j--) { | |
| 419 | |
| 420 float tex_z; | |
| 421 | |
| 422 world_z -= z_inclination; | |
| 423 localx = getLocalX(x-1+j); | |
| 424 tex_z = zpos1*(x_len-1-j)/(x_len-1) + zpos2*j/(x_len-1); | |
| 425 | |
| 426 if (tex_z < g->zRow[localx + (rangex*localy)]) { | |
| 427 | |
| 428 float tex_x, tex_y; | |
| 429 | |
| 430 tex_x = tex1*(x_len-1-j)/(x_len-1) + tex2*j/(x_len-1); | |
| 431 tex_y = tey1*(x_len-1-j)/(x_len-1) + tey2*j/(x_len-1); | |
| 432 | |
| 433 if (tex_x > 1) tex_x = 1; | |
| 434 if (tex_x < 0) tex_x = 0; | |
| 435 if (tex_y > 1) tex_y = 1; | |
| 436 if (tex_y < 0) tex_y = 0; | |
| 437 | |
| 438 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ | |
| 439 int tex_xpos, tex_ypos; | |
| 440 | |
| 441 tex_xpos = (int)((span->tex_width-1) * tex_x); | |
| 442 tex_ypos = (int)((span->tex_height-1) * tex_y); | |
| 443 | |
| 444 // (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 445 // そのブロックのアドレス(MainMemory) | |
| 446 memaddr tex_addr; | |
| 447 int tex_localx; | |
| 448 int tex_localy; | |
| 449 | |
| 450 if (!span->tex_addr) return -1; // broken case, I'd like to write some thing... | |
| 451 tex_addr = getTile(tex_xpos, tex_ypos, | |
| 452 span->tex_width, (memaddr)span->tex_addr); | |
| 453 tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 454 tex_localy = tex_ypos % TEXTURE_SPLIT_PIXEL; | |
| 455 | |
| 456 TilePtr tile = smanager->get_segment(tex_addr,g->tileList); | |
| 457 smanager->wait_segment(tile); | |
| 458 | |
| 459 updateBuffer(g, tex_z, rangex, localx, localy, | |
| 460 tex_localx, tex_localy, | |
| 461 normal_x, normal_y, normal_z, tile, | |
| 462 span->x+j, span->y, world_z, smanager); | |
| 463 } | |
| 464 } | |
| 465 | |
| 466 | |
| 467 | |
| 468 #endif | |
| 469 | |
| 1157 | 470 return ret; |
| 471 } | |
| 472 | |
| 1158 | 473 static int |
| 474 getDrawParam(SchedTask *smanager, Gptr g, SpanPtr span, int localy, int startx, int endx, int index, int j, DrawParamPtr param) { | |
| 1157 | 475 |
| 476 int x = span->x; | |
| 477 int rangex = endx - startx + 1; | |
| 478 int x_len = span->length_x; | |
| 479 | |
| 480 /* span->x に対応する Texture の座標 (tex_xpos, tex_ypos) */ | |
| 481 int tex_xpos, tex_ypos; | |
| 482 | |
| 483 // span の始点に対応する座標 (tex1, tey1) | |
| 484 float tex1 = span->tex_x1; | |
| 485 float tey1 = span->tex_y1; | |
| 539 | 486 |
| 1157 | 487 // span の終点に対応する座標 (tex2, tey2) |
| 488 float tex2 = span->tex_x2; | |
| 489 float tey2 = span->tex_y2; | |
| 490 | |
| 491 // span の始点、終点に対応する z 座標 | |
| 492 float zpos1 = span->start_z; | |
| 493 float zpos2 = span->end_z; | |
| 494 | |
| 495 //spanを右から左に見ていくうちに、zが下がるのか、上がっていくのか。 | |
| 496 float z_inclination = (zpos1 - zpos2) / x_len; | |
| 1159 | 497 param->world_z = zpos2 + (z_inclination*index); |
| 498 param->x = x + j; | |
| 1158 | 499 param->tex_z = zpos1*(x_len-1-j)/(x_len-1) + zpos2*j/(x_len-1); |
| 500 param->localx = getLocalX(x-1+j); | |
| 1157 | 501 |
| 1159 | 502 |
| 1158 | 503 if (param->tex_z < g->zRow[param->localx + (rangex*localy)]) { |
| 1157 | 504 |
| 505 float tex_x, tex_y; | |
| 506 | |
| 539 | 507 tex_x = tex1*(x_len-1-j)/(x_len-1) + tex2*j/(x_len-1); |
| 508 tex_y = tey1*(x_len-1-j)/(x_len-1) + tey2*j/(x_len-1); | |
| 509 if (tex_x > 1) tex_x = 1; | |
| 510 if (tex_x < 0) tex_x = 0; | |
| 511 if (tex_y > 1) tex_y = 1; | |
| 512 if (tex_y < 0) tex_y = 0; | |
| 513 tex_xpos = (int)((span->tex_width-1) * tex_x); | |
| 514 tex_ypos = (int)((span->tex_height-1) * tex_y); | |
| 1157 | 515 |
| 516 // (tex_xpos, tex_ypos) の、Tile 内(上の図参照)での座標と | |
| 517 // そのブロックのアドレス(MainMemory) | |
| 518 memaddr tex_addr; | |
| 519 | |
| 1158 | 520 if (!span->tex_addr) return -1; // broken case, I'd like to write some thing... |
| 1157 | 521 tex_addr = getTile(tex_xpos, tex_ypos, |
| 522 span->tex_width, (memaddr)span->tex_addr); | |
| 523 | |
| 1158 | 524 param->tex_localx = tex_xpos % TEXTURE_SPLIT_PIXEL; |
| 525 param->tex_localy = tex_xpos % TEXTURE_SPLIT_PIXEL; | |
| 526 | |
| 1159 | 527 param->tile = smanager->get_segment(tex_addr, g->tileList); |
| 1158 | 528 |
| 1159 | 529 param->display = 1; // z軸の一番まえだから表示されるよ |
| 1158 | 530 |
| 531 return 1; // | |
| 539 | 532 } |
| 533 | |
| 1158 | 534 param->display = 0; //z軸の前に他のオブジェクトがあるので、計算しなくていい。 |
| 535 | |
| 536 return 1; | |
| 1157 | 537 |
| 539 | 538 } |
| 539 | |
| 540 static int | |
| 738 | 541 infinity_light_calc(int color,float normal_x, float normal_y, |
| 542 float normal_z, SchedTask *smanager, int x, int y, float z, | |
| 543 int world_x, int world_y, float world_z) | |
| 544 | |
| 539 | 545 { |
| 765 | 546 |
| 539 | 547 unsigned char rgb[4]; |
| 548 int light_rgb; | |
| 549 float normal_vector[4] = {normal_x,normal_y,normal_z,0}; | |
| 765 | 550 float light_vector[4]; |
| 551 float *light_xyz = (float*)smanager->global_get(Light); | |
| 552 | |
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553 //normalize(normal_vector, normal_vector); |
| 539 | 554 |
| 555 // 引数で受け取った color の rgb 情報の抜き出し | |
| 623 | 556 #if LITTLEENDIAN |
| 539 | 557 rgb[0] = (color & 0xff000000) >> 24; |
| 558 rgb[1] = (color & 0x00ff0000) >> 16; | |
| 559 rgb[2] = (color & 0x0000ff00) >> 8; | |
| 560 rgb[3] = (color & 0x000000ff); | |
| 619 | 561 #else |
| 562 rgb[3] = (color & 0xff000000) >> 24; | |
| 563 rgb[2] = (color & 0x00ff0000) >> 16; | |
| 564 rgb[1] = (color & 0x0000ff00) >> 8; | |
| 565 rgb[0] = (color & 0x000000ff); | |
| 566 #endif | |
| 539 | 567 |
| 765 | 568 int tmp_rgb[3] = {0,0,0}; |
| 569 int light_num = 4; | |
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570 //float inner_product = 0.2; // 0.2 は環境光ってことにしてみた。 |
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571 float inner_product = 0; // 0.2 は環境光ってことにしてみた。 |
| 765 | 572 for (int i = 0; i < light_num; i++) { |
| 573 | |
| 574 light_vector[0] = world_x - light_xyz[i*4]; | |
| 575 light_vector[1] = world_y - light_xyz[i*4+1]; | |
| 576 light_vector[2] = light_xyz[i*4+2] - world_z; | |
| 577 light_vector[3] = light_xyz[i*4+3]; | |
| 578 | |
| 579 normalize(light_vector, light_vector); | |
| 580 | |
| 1144 | 581 float tmp_inner_product = 0; |
| 582 | |
| 765 | 583 // 法線ベクトルと光源ベクトルとの内積をとる |
| 1144 | 584 tmp_inner_product = innerProduct1(normal_vector,light_vector); |
| 539 | 585 |
| 765 | 586 // 内積がマイナスの場合は色がない。 |
| 1144 | 587 if (inner_product < tmp_inner_product) { |
| 588 inner_product = tmp_inner_product; | |
| 589 } | |
| 765 | 590 |
| 591 // 内積を rgb にかけていく | |
| 845 | 592 |
| 1144 | 593 tmp_rgb[0] = (unsigned char)(rgb[0]*inner_product); |
| 594 tmp_rgb[1] = (unsigned char)(rgb[1]*inner_product); | |
| 595 tmp_rgb[2] = (unsigned char)(rgb[2]*inner_product); | |
| 765 | 596 |
| 597 } | |
| 598 | |
| 599 int rgb_flag[3]; | |
| 600 for (int i = 0; i < 3; i++) { | |
| 601 rgb_flag[i] = (tmp_rgb[i] > 255); | |
| 602 } | |
| 603 | |
| 604 rgb[0] = tmp_rgb[0]*(1 - rgb_flag[0]) + 255*(rgb_flag[0]); | |
| 605 rgb[1] = tmp_rgb[1]*(1 - rgb_flag[1]) + 255*(rgb_flag[1]); | |
| 606 rgb[2] = tmp_rgb[2]*(1 - rgb_flag[2]) + 255*(rgb_flag[2]); | |
| 607 | |
| 539 | 608 |
| 609 //計算した rgb を light_rgb にまとめる。 | |
| 623 | 610 #if LITTLEENDIAN |
| 539 | 611 light_rgb = (rgb[0] << 24) + (rgb[1] << 16) + (rgb[2] << 8) + (rgb[3]); |
| 619 | 612 #else |
| 613 light_rgb = (rgb[3] << 24) + (rgb[2] << 16) + (rgb[1] << 8) + (rgb[0]); | |
| 614 #endif | |
| 539 | 615 |
| 616 return light_rgb; | |
| 765 | 617 |
| 539 | 618 } |
| 619 | |
| 620 | |
| 621 static int | |
| 622 run(SchedTask *smanager, void *rbuf, void *wbuf) | |
| 623 { | |
| 838 | 624 |
| 845 | 625 //get_param(5) is spack->info.size |
| 846 | 626 if ((long)smanager->get_param(5) == 0) { |
| 838 | 627 |
| 628 int rangex_start = (long)smanager->get_param(2); | |
| 629 int rangex_end = (long)smanager->get_param(3); | |
| 630 | |
| 631 int rangex = rangex_end - rangex_start + 1; | |
| 632 int rangey = (long)smanager->get_param(4); | |
| 633 | |
| 914 | 634 for(int h = 0; h < rangey; h++) { |
| 635 int *buf = (int*)smanager->get_output(h); | |
| 636 for (int i = 0; i < rangex; i++) { | |
| 637 buf[i] = 0; | |
| 638 } | |
| 639 } | |
| 838 | 640 |
| 641 return 0; | |
| 642 | |
| 643 } | |
| 644 | |
| 645 | |
| 623 | 646 G g0; |
| 647 Gptr g = &g0; | |
| 539 | 648 |
| 649 SpanPackPtr spack = (SpanPackPtr)smanager->get_input(0); | |
| 650 SpanPackPtr next_spack = (SpanPackPtr)smanager->allocate(sizeof(SpanPack)); | |
| 651 SpanPackPtr free_spack = next_spack; // next_spack の free() 用 | |
| 652 Span *span; | |
| 653 | |
| 654 Span nop_span; | |
| 655 nop_span.length_x = 1; | |
| 656 | |
| 738 | 657 // uint32 display = (long)smanager->get_param(0); |
| 658 // int screen_width = (long)smanager->get_param(1); | |
|
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659 int rangex_start = (long)smanager->get_param(2); |
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660 int rangex_end = (long)smanager->get_param(3); |
| 539 | 661 |
| 662 // このタスクが担当する x の範囲 | |
| 663 int rangex = rangex_end - rangex_start + 1; | |
| 664 | |
| 665 // y の範囲 | |
|
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666 int rangey = (long)smanager->get_param(4); |
| 539 | 667 g->tileList = (TileListPtr)smanager->global_get(GLOBAL_TILE_LIST); |
| 668 | |
| 669 g->zRow = zRow_init(smanager, rangex, rangey); | |
| 670 g->linebuf = linebuf_init(smanager, rangex, rangey, 0); | |
| 671 | |
| 672 int tl_tag[2] = {TEX_LOAD1, TEX_LOAD2}; | |
| 673 int tl_tag_flg1 = 0; | |
| 674 int tl_tag_flg2 = 1; | |
| 675 | |
| 676 do { | |
| 677 /** | |
| 678 * SpanPack->next が存在する場合、 | |
| 679 * 現在の SpanPack を処理してる間に | |
| 680 * 次の SpanPack の DMA 転送を行う | |
| 681 */ | |
| 682 if (spack->next != NULL) { | |
|
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683 smanager->dma_load(next_spack, (memaddr)spack->next, |
| 539 | 684 sizeof(SpanPack), SPAN_PACK_LOAD); |
| 685 } else { | |
| 686 next_spack = NULL; | |
| 687 } | |
| 688 | |
| 689 SpanPtr resume_span = &nop_span; | |
| 690 | |
| 691 for (int t = 0; t < spack->info.size; t++) { | |
| 692 SpanPtr next_span; | |
| 693 | |
| 694 span = &spack->span[t]; | |
| 695 | |
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696 if (span->length_x != 1) { |
| 1159 | 697 drawLine1( |
| 845 | 698 smanager, g, |
| 699 span, rangex_start, rangex_end, tl_tag[tl_tag_flg1]); | |
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700 } else { |
| 1159 | 701 drawDot1( |
| 845 | 702 smanager, g, |
| 703 span, rangex_start, rangex_end, tl_tag[tl_tag_flg1]); | |
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704 } |
| 539 | 705 next_span = span; |
| 706 | |
| 707 resume_span = next_span; | |
| 708 | |
| 709 tl_tag_flg1 ^= 1; | |
| 710 tl_tag_flg2 ^= 1; | |
| 711 } | |
| 712 | |
| 713 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 714 | |
| 715 SpanPackPtr tmp_spack = spack; | |
| 716 spack = next_spack; | |
| 717 next_spack = tmp_spack; | |
| 718 } while (spack); | |
| 719 | |
| 720 | |
| 721 free(g->zRow); | |
|
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722 free(g->linebuf); |
| 539 | 723 |
| 724 //FINISH: | |
| 725 /** | |
| 726 * goto FINISH; の時は reboot なので | |
| 727 * linebuf, zRow は free() しない | |
| 728 */ | |
| 729 | |
| 730 free(free_spack); | |
| 731 | |
| 732 | |
| 733 return 0; | |
| 734 } | |
| 735 | |
| 736 /* end */ |