Mercurial > hg > Members > kono > Cerium
annotate TaskManager/Test/test_render/spe/CreateSpan.cc @ 467:44c0bce54dcf
fix all examples. test_render is not working now.
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 01 Oct 2009 19:25:25 +0900 |
| parents | afb717c43a3c |
| children | 699ee087234e |
| rev | line source |
|---|---|
| 322 | 1 // #define DEBUG |
| 321 | 2 #include "error.h" |
| 109 | 3 #include "CreateSpan.h" |
| 4 #include "viewer_types.h" | |
| 5 | |
| 244 | 6 // DMA channel |
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7 static const int SPAN_PACK_LOAD = 5; |
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8 static const int SPAN_PACK_STORE = 6; |
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9 static const int POLYGON_PACK_LOAD = 7; |
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10 static const int TILE_ALLOCATE = 8; |
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11 static const int TILE_LOAD = 9; |
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12 static const int TILE_STORE = 10; |
| 109 | 13 |
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14 static struct g { |
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15 SpanPackPtr spack ; |
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16 SpanPackPtr send_spack ; |
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17 int prev_index = ; |
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18 } G, *Gptr; |
| 109 | 19 |
| 20 SchedDefineTask(CreateSpan); | |
| 21 | |
| 22 static float | |
| 23 calc(float f1, float f2,int i, float base) | |
| 24 { | |
| 25 float ans; | |
| 26 ans = f1/f2*i + base; | |
| 27 return ans; | |
| 28 } | |
| 29 | |
| 30 | |
| 31 /** | |
| 32 * TrianglePack から、vMin, vMid, vMax を求める | |
| 33 * | |
| 34 * @param [triPack] TrianglePack | |
| 35 * @param [vMin] [vMid] [vMax] | |
| 36 */ | |
| 37 static void | |
| 38 make_vertex(TrianglePack *triPack, | |
| 39 VertexPackPtr *vMin, VertexPackPtr *vMid, VertexPackPtr *vMax) | |
| 40 { | |
| 41 if (triPack->ver1.y <= triPack->ver2.y) { | |
| 42 if (triPack->ver2.y <= triPack->ver3.y) { | |
| 43 *vMin = &triPack->ver1; | |
| 44 *vMid = &triPack->ver2; | |
| 45 *vMax = &triPack->ver3; | |
| 46 } else if (triPack->ver3.y <= triPack->ver1.y) { | |
| 47 *vMin = &triPack->ver3; | |
| 48 *vMid = &triPack->ver1; | |
| 49 *vMax = &triPack->ver2; | |
| 50 } else { | |
| 51 *vMin = &triPack->ver1; | |
| 52 *vMid = &triPack->ver3; | |
| 53 *vMax = &triPack->ver2; | |
| 54 } | |
| 55 } else { | |
| 56 if (triPack->ver1.y <= triPack->ver3.y) { | |
| 57 *vMin = &triPack->ver2; | |
| 58 *vMid = &triPack->ver1; | |
| 59 *vMax = &triPack->ver3; | |
| 60 } else if (triPack->ver3.y <= triPack->ver2.y) { | |
| 61 *vMin = &triPack->ver3; | |
| 62 *vMid = &triPack->ver2; | |
| 63 *vMax = &triPack->ver1; | |
| 64 } else { | |
| 65 *vMin = &triPack->ver2; | |
| 66 *vMid = &triPack->ver3; | |
| 67 *vMax = &triPack->ver1; | |
| 68 } | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 static void | |
| 73 make_vMid10(VertexPack *v, VertexPack *vMin, | |
| 74 VertexPack *vMid, VertexPack *vMax) | |
| 75 { | |
| 146 | 76 //int d, d1; |
| 77 float d; | |
| 78 int d1; | |
| 79 | |
| 80 d = vMax->y - vMin->y; | |
| 109 | 81 d1 = (int)(vMid->y - vMin->y); |
| 82 | |
| 83 v->tex_x = calc(vMax->tex_x - vMin->tex_x, d, d1, vMin->tex_x); | |
| 84 v->tex_y = calc(vMax->tex_y - vMin->tex_y, d, d1, vMin->tex_y); | |
| 85 v->x = calc(vMax->x - vMin->x, d, d1, vMin->x); | |
| 86 v->y = vMid->y; | |
| 87 v->z = calc(vMax->z - vMin->z, d, d1, vMin->z); | |
| 88 } | |
| 89 | |
| 156 | 90 /** |
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91 * 与えられた scale から、実際に使うテクスチャの Tapestry を選択する |
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92 * |
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93 * テクスチャは、オリジナルのサイズから、可能なかぎり 1/2 で縮小していき、 |
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94 * 下の図の様に連続した領域に入れられる |
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95 * |
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96 * Tapestry (1) |
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97 * +---+---+---+---+ |
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98 * | 0 | 1 | 2 | 3 | |
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99 * +---+---+---+---+ |
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100 * | 4 | 5 | 6 | 7 | (2) |
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101 * +---+---+---+---+ +---+---+ |
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102 * | 8 | 9 | 10| 11| | 16| 17| (3) |
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103 * +---+---+---+---+ +---+---+ +---+ |
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104 * | 12| 13| 14| 15| | 18| 19| | 20| |
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105 * +---+---+---+---+ +---+---+ +---| |
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106 * |
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107 * (1) (2) (3) |
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108 * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ |
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109 * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | * | * | * | 14| 15| 16| 17| 18| 19| 20| |
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110 * +---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+ |
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111 * |
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112 * scale の値から、各 Tapestry の先頭アドレスを返す |
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113 * |
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114 * @param[in] tw Width of texture |
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115 * @param[in] th Height of texture |
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116 * @param[in] scale テクスチャの縮小率 (= 2^n) |
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117 * @param[in] addr_top テクスチャの先頭アドレス (上の図での (1) |
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118 * @return scale に対応する Tapestry のアドレス (上の図での (1) or (2) or(3) |
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119 */ |
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120 static uint32* |
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121 getTapestry(int tw, int th, int scale, uint32 *addr_top) |
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122 { |
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123 int index = 0; |
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124 |
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125 for (int s = 1; s < scale; s <<= 1) { |
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126 index += tw*th; |
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127 tw >>= 1; /* tw /= 2 */ |
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128 th >>= 1; |
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129 } |
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130 |
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131 return addr_top + index; |
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132 } |
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133 |
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134 |
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135 /** |
| 184 | 136 * span の width,height と texture の width,height を比べて |
| 172 | 137 * span を描画する際に使う texture の比率を求める |
| 138 * | |
| 175 | 139 * @param[in] width Width of span |
| 140 * @param[in] height Height of span | |
| 141 * @param[in] tex_width Width of 1/1 texture that span use | |
| 142 * @param[in] tex_height Height of 1/1 texture that span use | |
| 143 * @param[in] scale_max この Span で使う texture の最大縮小率 | |
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144 * 計算結果が scale_max 以上になるのを防ぐ |
| 172 | 145 * @return 描画に使う texture の比率 |
| 146 * width と height は 1/scale の画像を使う | |
| 147 * | |
| 148 */ | |
| 169 | 149 static int |
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150 getScale(int width, int height, int tex_width, int tex_height, int scale_max) |
| 169 | 151 { |
| 172 | 152 int base, tex_base; |
| 169 | 153 int scale = 1; |
| 172 | 154 |
| 155 /** | |
| 156 * width と height で、長い方を基準に、 | |
| 157 * texture の scale を決める | |
| 158 */ | |
| 159 if (width > height) { | |
| 160 base = width; | |
| 161 tex_base = tex_width; | |
| 162 } else { | |
| 163 base = height; | |
| 164 tex_base = tex_height; | |
| 165 } | |
| 166 | |
| 167 if (tex_base > base) { | |
| 168 int t_scale = tex_base/base; | |
| 169 | 169 while (t_scale >>= 1) { |
| 170 scale <<= 1; | |
| 171 } | |
| 172 } | |
| 173 | |
|
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174 return (scale > scale_max) ? scale_max : scale; |
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175 //return scale_max; |
| 169 | 176 } |
| 177 | |
| 141 | 178 /** |
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179 * x軸に水平な辺を持つ三角形ポリゴンから、 |
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180 * Span を抜き出す |
| 172 | 181 * |
| 175 | 182 * @param[in] spackList triangle から生成された span を格納する List |
| 183 * @param[in] charge_y_top 担当する y の範囲開始地点 | |
| 184 * @param[in] charge_y_end 担当する y の範囲終了地点 | |
| 185 * @param[in] tex_addr triangle が参照するテクスチャの先頭アドレス | |
| 186 * @param[in] tex_width テクスチャの width | |
| 187 * @param[in] tex_height テクスチャの height | |
| 176 | 188 * @param[in] tex_scale_max テクスチャの最大縮小率 (2^n) |
| 175 | 189 * @param[in] vMin triangle の座標 |
| 190 * @param[in] vMid triangle の座標。triangle を二つに分けて出来た新しい座標 | |
| 191 * @param[in] vMid10 triangle の座標 | |
| 176 | 192 * @param[in] length_y 分割する前の Triangle の y の長さ |
| 193 * @param[in] tex_y_len 分割する前の Triangle に貼られている Texture の | |
| 194 * 長さの割合 (0 ... 1) | |
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195 */ |
| 109 | 196 void |
| 409 | 197 CreateSpan::half_triangle(SchedTask *smanager, SpanPackPtr *spackList, |
| 109 | 198 int charge_y_top, int charge_y_end, |
| 210 | 199 TriangleTexInfoPtr tex_info, |
| 172 | 200 VertexPack *vMin,VertexPack *vMid,VertexPack *vMid10, |
| 176 | 201 int length_y, float tex_y_len) |
| 109 | 202 { |
| 203 float tmp_z,tmp_tex1, tmp_tex2 ,tmp_tey1,tmp_tey2; | |
| 204 float tmp_xpos,tmp_end,tmp_zpos; | |
| 205 float start_z, end_z; | |
| 206 float start_tex_x, end_tex_x, start_tex_y, end_tex_y; | |
| 207 int x, y, length; | |
| 208 | |
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209 #if 1 |
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210 // これじゃないと |
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211 // テクスチャの貼りに微妙に隙間が。謎だ |
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212 int start_y = (int)vMid->y; |
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213 int end_y = (int)vMin->y; |
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214 #else |
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215 float start_y = vMid->y; |
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216 float end_y = vMin->y; |
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217 #endif |
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218 float div_y = start_y - end_y; |
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219 int k = 0; |
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220 int l = 1; |
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221 |
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222 SpanPackPtr tmp_spack; |
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223 |
| 135 | 224 /** |
| 225 * 三角形ポリゴンをx軸に水平に二つに分けようとして | |
| 226 * ある一辺がすでに水平だった場合、つまり | |
| 227 * | |
| 228 * |\ | |
| 229 * | \ | |
| 230 * | \ | |
| 231 * ----- | |
| 232 * | |
| 233 * | |
| 234 * 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 | |
| 235 * half_triangle の処理をするべきだが、現在の処理だと | |
| 236 * この half_triangle に「上の部分の三角形」と、 | |
| 237 * 「『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。 | |
| 238 * 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 | |
| 239 * 現在はこれで代用。 | |
| 240 * half_triangle 呼ぶ前にこれを判断できれば良いかもしれない。 | |
| 241 * てかこんなんでいいのかよ。。。 | |
| 242 */ | |
|
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243 #if 1 |
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244 if ((int)div_y == 0) { |
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245 return; |
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246 } |
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247 #else |
| 135 | 248 if (vMid10->x == vMin->x && vMid10->y == vMin->y) { |
| 249 return; | |
| 250 } | |
| 251 #endif | |
| 109 | 252 |
| 253 if (div_y < 0) { | |
| 254 div_y = -div_y; | |
| 255 k = 1; | |
| 256 l = -1; | |
| 257 } | |
| 258 | |
| 135 | 259 for (int i = k; i < (int)div_y+1; i++) { |
| 109 | 260 y = (int)vMin->y + i*l; |
| 210 | 261 #if 1 |
| 109 | 262 |
| 263 /** | |
| 264 * 担当 y 範囲内 | |
| 265 */ | |
| 266 if (charge_y_top <= y && y <= charge_y_end) { | |
| 267 // 1..8 を index0, 9..16 を index1 にするために y を -1 | |
| 268 int index = (y-1) / split_screen_h; | |
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269 |
| 109 | 270 /** |
| 271 * 違う SpanPack を扱う場合、 | |
| 272 * 現在の SpanPack をメインメモリに送り、 | |
| 273 * 新しい SpanPack を取ってくる | |
| 274 */ | |
| 275 if (index != prev_index) { | |
| 276 tmp_spack = spack; | |
| 277 spack = send_spack; | |
| 278 send_spack = tmp_spack; | |
| 279 | |
| 280 smanager->dma_wait(SPAN_PACK_STORE); | |
| 281 smanager->dma_store(send_spack, (uint32)spackList[prev_index], | |
| 282 sizeof(SpanPack), SPAN_PACK_STORE); | |
| 283 | |
| 284 smanager->dma_load(spack, (uint32)spackList[index], | |
| 285 sizeof(SpanPack), SPAN_PACK_LOAD); | |
| 286 prev_index = index; | |
| 287 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 288 } | |
| 289 | |
| 290 /** | |
| 291 * 書き込む SpanPack が満杯だったら | |
| 292 * メインメモリで allocate した領域 (next) を持ってきて | |
| 293 * 現在の spack->next につなぎ、next を次の spack とする。 | |
| 294 */ | |
| 295 if (spack->info.size >= MAX_SIZE_SPAN) { | |
| 296 SpanPackPtr next; | |
| 297 | |
| 321 | 298 __debug_spe("CreateSpan mainMem_alloc 0x%x\n", (unsigned int)sizeof(SpanPack)); |
| 141 | 299 smanager->mainMem_alloc(0, sizeof(SpanPack)); |
| 300 smanager->mainMem_wait(); | |
| 301 next = (SpanPackPtr)smanager->mainMem_get(0); | |
| 321 | 302 __debug_spe("CreateSpan mainMem_allocated 0x%x\n", (unsigned int)next); |
| 109 | 303 |
| 244 | 304 spack->next = next; // この部分は TaskManager でやる |
| 109 | 305 |
| 306 tmp_spack = spack; | |
| 307 spack = send_spack; | |
| 308 send_spack = tmp_spack; | |
| 309 | |
| 310 smanager->dma_wait(SPAN_PACK_STORE); | |
| 311 smanager->dma_store(send_spack, (uint32)spackList[index], | |
| 312 sizeof(SpanPack), SPAN_PACK_STORE); | |
| 313 | |
| 314 spackList[index] = next; | |
| 141 | 315 |
| 109 | 316 smanager->dma_load(spack, (uint32)spackList[index], |
| 317 sizeof(SpanPack), SPAN_PACK_LOAD); | |
| 318 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 319 spack->init((index+1)*split_screen_h); | |
| 320 } | |
| 321 } else { | |
| 322 /** | |
| 323 * 担当範囲外だったら無視 | |
| 324 */ | |
| 325 continue; | |
| 326 } | |
| 146 | 327 |
| 328 tmp_xpos = calc(vMid10->x - vMin->x ,div_y, i, vMin->x); | |
| 329 tmp_end = calc(vMid->x - vMin->x ,div_y, i, vMin->x); | |
| 330 tmp_z = calc(vMid10->z - vMin->z ,div_y, i, vMin->z); | |
| 331 tmp_zpos = calc(vMid->z - vMin->z ,div_y, i, vMin->z); | |
| 332 | |
| 333 length = (tmp_xpos > tmp_end) | |
| 334 ? (int)tmp_xpos - (int)tmp_end : (int)tmp_end - (int)tmp_xpos; | |
| 335 if (length == 0) { | |
| 336 continue; | |
| 337 } | |
| 109 | 338 |
| 339 tmp_tex1 =((i/(div_y)) * vMid10->tex_x) + | |
| 340 ( ((div_y - i)/(div_y)) * vMin->tex_x); | |
| 341 tmp_tex2 =( (i/(div_y)) * vMid->tex_x) + | |
| 342 ( ((div_y - i)/(div_y)) * vMin->tex_x); | |
| 343 | |
| 344 tmp_tey1 =( (i/(div_y)) * vMid10->tex_y) + | |
| 345 ( ((div_y - i)/(div_y)) * vMin->tex_y); | |
| 346 tmp_tey2 =( (i/(div_y)) * vMid->tex_y) + | |
| 347 ( ((div_y - i)/(div_y)) * vMin->tex_y); | |
| 348 | |
| 349 if (tmp_xpos > tmp_end) { | |
| 350 x = (int)tmp_end; | |
| 172 | 351 length = (int)(tmp_xpos)-(int)(tmp_end)+1; |
| 109 | 352 start_z = tmp_zpos; |
| 353 end_z = tmp_z; | |
| 354 start_tex_x = tmp_tex2; | |
| 355 end_tex_x = tmp_tex1; | |
| 356 start_tex_y = tmp_tey2; | |
| 357 end_tex_y = tmp_tey1; | |
| 358 } else { | |
| 359 x = (int)tmp_xpos; | |
| 172 | 360 length = (int)(tmp_end)-(int)(tmp_xpos)+1; |
| 109 | 361 start_z = tmp_z; |
| 362 end_z = tmp_zpos; | |
| 363 start_tex_x = tmp_tex1; | |
| 364 end_tex_x = tmp_tex2; | |
| 365 start_tex_y = tmp_tey1; | |
| 366 end_tex_y = tmp_tey2; | |
| 367 } | |
| 368 | |
| 369 smanager->dma_wait(SPAN_PACK_LOAD); | |
| 370 | |
| 371 Span *span = &spack->span[spack->info.size++]; | |
| 372 | |
| 373 span->x = x; | |
| 374 span->y = y; | |
| 375 span->length_x = length; | |
| 376 span->start_z = start_z; | |
| 377 span->end_z = end_z; | |
| 378 span->tex_x1 = start_tex_x; | |
| 379 span->tex_x2 = end_tex_x; | |
| 380 span->tex_y1 = start_tex_y; | |
| 381 span->tex_y2 = end_tex_y; | |
| 172 | 382 |
| 176 | 383 |
| 384 float tex_x_len = span->tex_x2 - span->tex_x1; | |
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385 |
| 176 | 386 /** |
| 387 * tex_x_len, tex_y_len を掛ける理由は | |
| 388 * Changelog の 2008-12-16 を参照 | |
| 389 */ | |
| 390 int scale = getScale(span->length_x, length_y, | |
| 391 (int)(span->tex_width*tex_x_len), | |
| 210 | 392 (int)(span->tex_height*tex_y_len), |
| 393 tex_info->scale_max); | |
| 233 | 394 //scale = tex_info->scale_max; |
| 176 | 395 |
| 210 | 396 uint32 *tapestry = getTapestry(tex_info->width, |
| 397 tex_info->height, scale, | |
| 398 tex_info->addr); | |
| 399 span->tex_addr = tapestry; | |
| 400 span->tex_width = tex_info->width/scale; | |
| 401 span->tex_height = tex_info->height/scale; | |
| 402 } | |
| 403 #else | |
| 233 | 404 |
| 405 /** | |
| 406 * ここに SIMD 化した記述をしようとして断念 | |
| 407 */ | |
| 203 | 408 |
| 210 | 409 #endif |
| 410 | |
| 109 | 411 } |
| 412 | |
| 413 | |
|
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414 static int |
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415 run(SchedTask *smanager, void *rbuf, void *wbuf) |
| 109 | 416 { |
|
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417 smanager->__debug_spe("CreateSpan\n"); |
| 321 | 418 |
| 109 | 419 PolygonPack *pp = (PolygonPack*)smanager->get_input(0); |
| 420 PolygonPack *next_pp = | |
| 421 (PolygonPack*)smanager->allocate(sizeof(PolygonPack)); | |
| 422 PolygonPack *free_pp = next_pp; | |
| 423 PolygonPack *tmp_pp; | |
| 424 | |
| 425 TrianglePackPtr triPack; | |
| 426 VertexPackPtr vMin, vMid, vMax; | |
| 427 VertexPackPtr vMid10 | |
| 428 = (VertexPackPtr)smanager->allocate(sizeof(VertexPack)); | |
| 429 | |
| 430 SpanPackPtr *spackList = (SpanPackPtr*)smanager->get_input(1); | |
| 431 spack = (SpanPackPtr)smanager->get_input(2); | |
| 432 send_spack = (SpanPackPtr)smanager->allocate(sizeof(SpanPack)); | |
| 433 prev_index = get_param(0); | |
| 434 | |
| 435 // spack と send_spack は swap しながら DMA を繰り返すので | |
| 436 // 自分で allocate した send_spack を覚えてないといけない | |
| 437 SpanPackPtr free_spack = send_spack; | |
| 438 | |
| 439 int charge_y_top = get_param(1); | |
| 440 int charge_y_end = get_param(2); | |
| 441 | |
| 442 do { | |
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443 smanager->__debug_spe("CreateSpan allocated 0x%x\n",(uint32)next_pp); |
| 321 | 444 |
| 109 | 445 if (pp->next != NULL) { |
| 446 smanager->dma_load(next_pp, (uint32)pp->next, | |
| 447 sizeof(PolygonPack), POLYGON_PACK_LOAD); | |
| 448 } else { | |
| 449 next_pp = NULL; | |
| 450 } | |
| 451 | |
| 452 for (int i = 0; i < pp->info.size; i++) { | |
| 453 triPack = &pp->tri[i]; | |
| 210 | 454 |
| 455 TriangleTexInfoPtr tri_tex_info = &triPack->tex_info; | |
| 456 | |
| 109 | 457 make_vertex(triPack, &vMin, &vMid, &vMax); |
| 458 make_vMid10(vMid10, vMin, vMid, vMax); | |
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459 |
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460 /** |
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461 * 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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462 * それぞれから Span を求める |
| 172 | 463 * |
| 464 * vMax | |
| 465 * |\ | |
| 466 * | \ | |
| 467 * | \ | |
| 468 * | \ | |
| 469 * vMid10 ------ vMid | |
| 470 * | / | |
| 471 * | / | |
| 472 * | / | |
| 473 * |/ | |
| 474 * vMin | |
| 475 * | |
| 476 * (vMax, vMid, vMin) という triangle を | |
| 477 * (vMax, vMid, vMid10) (vMin, vMid, vMid10) という | |
| 478 * 二つの Triangle に分けている | |
|
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479 */ |
| 409 | 480 half_triangle(smanager, spackList, charge_y_top, charge_y_end, |
| 210 | 481 tri_tex_info, vMin, vMid, vMid10, |
| 176 | 482 (int)(vMax->y - vMin->y), vMax->tex_y - vMin->tex_y); |
| 409 | 483 half_triangle(smanager, spackList, charge_y_top, charge_y_end, |
| 210 | 484 tri_tex_info, vMax, vMid, vMid10, |
| 176 | 485 (int)(vMax->y - vMin->y), vMax->tex_y - vMin->tex_y); |
| 109 | 486 } |
| 487 | |
| 488 smanager->dma_wait(POLYGON_PACK_LOAD); | |
| 489 | |
| 490 tmp_pp = pp; | |
| 491 pp = next_pp; | |
| 492 next_pp = tmp_pp; | |
| 493 } while (pp); | |
| 494 | |
| 495 smanager->dma_wait(SPAN_PACK_STORE); | |
| 496 smanager->dma_store(spack, (uint32)spackList[prev_index], | |
| 497 sizeof(SpanPack), SPAN_PACK_STORE); | |
| 498 smanager->dma_wait(SPAN_PACK_STORE); | |
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499 smanager->__debug_spe("CreateSpan spack_stored 0x%x\n",(uint32)spackList[prev_index]); |
| 109 | 500 |
| 244 | 501 // smanager で allocate したのだから free も smanager でやるべき |
| 109 | 502 free(free_pp); |
| 503 free(free_spack); | |
| 504 free(vMid10); | |
| 505 | |
| 506 return 0; | |
| 507 } |