Mercurial > hg > Members > kono > Cerium
annotate Renderer/Engine/polygon.cc @ 906:348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
| author | Yutaka_Kinjyo |
|---|---|
| date | Mon, 19 Jul 2010 23:40:53 +0900 |
| parents | 000a8b63ad9a |
| children | 2683838396c6 |
| rev | line source |
|---|---|
| 507 | 1 #include <iostream> |
| 2 #include <SDL.h> | |
| 3 #include <SDL_opengl.h> | |
| 4 #include <SDL_image.h> | |
| 5 #include "polygon.h" | |
| 6 #include "xml.h" | |
| 7 #include "sys.h" | |
| 8 #include "triangle.h" | |
| 9 #include "vertex.h" | |
| 10 #include "Span.h" | |
| 11 #include "SpanC.h" | |
| 12 #include "scene_graph_pack.h" | |
| 13 #include "error.h" | |
| 14 #include "viewer_types.h" | |
| 15 using namespace std; | |
| 16 | |
| 17 //extern int decode(char *cont, char *file_name); | |
| 18 extern int decode(char *cont, FILE *outfile); | |
| 19 | |
| 20 | |
| 21 Polygon::Polygon(void) | |
| 22 { | |
| 23 xyz[0] = 0; | |
| 24 xyz[1] = 0; | |
| 25 xyz[2] = 0; | |
| 26 xyz[3] = 1; | |
| 27 c_xyz[0] = 0; | |
| 28 c_xyz[1] = 0; | |
| 29 c_xyz[2] = 0; | |
| 30 c_xyz[3] = 1; | |
| 31 angle[0] = 0; | |
| 32 angle[1] = 0; | |
| 33 angle[2] = 0; | |
| 34 angle[3] = 1; | |
| 35 | |
| 861 | 36 |
| 37 #if !SPE_CREATE_POLYGON | |
| 38 | |
| 507 | 39 for (int i = 0; i < 16; i++) { |
| 40 matrix[i] = 0; | |
| 41 } | |
| 861 | 42 |
| 43 #endif | |
| 44 | |
| 507 | 45 } |
| 46 | |
| 47 void | |
| 48 Polygon::position_init(void) | |
| 49 { | |
| 50 xyz[0] = 0; | |
| 51 xyz[1] = 0; | |
| 52 xyz[2] = 0; | |
| 53 xyz[3] = 1; | |
| 54 c_xyz[0] = 0; | |
| 55 c_xyz[1] = 0; | |
| 56 c_xyz[2] = 0; | |
| 57 c_xyz[3] = 1; | |
| 58 angle[0] = 0; | |
| 59 angle[1] = 0; | |
| 60 angle[2] = 0; | |
| 61 angle[3] = 1; | |
| 62 | |
| 861 | 63 |
| 64 #if !SPE_CREATE_POLYGON | |
| 65 | |
| 507 | 66 for (int i = 0; i < 16; i++) { |
| 67 matrix[i] = 0; | |
| 68 } | |
| 861 | 69 |
| 70 #endif | |
| 71 | |
| 507 | 72 } |
| 73 | |
| 74 #if 0 | |
| 75 void Polygon::draw(SceneGraphPack *sgp) | |
| 76 { | |
| 77 float xyz1[4],xyz2[4],xyz3[4]; | |
| 78 | |
| 79 /***SceneGraphUpdate***/ | |
| 80 //sgp_update(); | |
| 81 for (int i = 0; i < sgp->info.size; i++) { | |
| 82 SceneGraphNode node = sgp->node[i]; | |
| 83 | |
| 84 /***draw***/ | |
| 85 int n,nt; | |
| 86 for(n=0,nt=0; n<node.size*3; n+=9,nt+=6) { | |
| 87 xyz1[0] = node.vertex[n]; | |
| 88 xyz1[1] = node.vertex[n+1]; | |
| 89 xyz1[2] = node.vertex[n+2]*-1; | |
| 90 xyz1[3] = 1; | |
| 91 xyz2[0] = node.vertex[n+3]; | |
| 92 xyz2[1] = node.vertex[n+3+1]; | |
| 93 xyz2[2] = node.vertex[n+3+2]*-1; | |
| 94 xyz2[3] = 1; | |
| 95 xyz3[0] = node.vertex[n+6]; | |
| 96 xyz3[1] = node.vertex[n+6+1]; | |
| 97 xyz3[2] = node.vertex[n+6+2]*-1; | |
| 98 xyz3[3] = 1; | |
| 99 | |
| 100 rotate(xyz1, node.translation); | |
| 101 rotate(xyz2, node.translation); | |
| 102 rotate(xyz3, node.translation); | |
| 103 | |
| 104 Vertex *ver1 = new Vertex(xyz1[0],xyz1[1],xyz1[2],node.texture[nt],node.texture[nt+1]); | |
| 105 Vertex *ver2 = new Vertex(xyz2[0],xyz2[1],xyz2[2],node.texture[nt+2],node.texture[nt+2+1]); | |
| 106 Vertex *ver3 = new Vertex(xyz3[0],xyz3[1],xyz3[2],node.texture[nt+4],node.texture[nt+4+1]); | |
| 107 | |
| 108 Triangle *tri = new Triangle(ver1,ver2,ver3); | |
| 109 Span_c *span = new Span_c(); | |
| 110 span->viewer = viewer; | |
| 111 span->p = this; | |
| 112 span->create_span(tri,texture_image); | |
| 113 delete ver1; | |
| 114 delete ver2; | |
| 115 delete ver3; | |
| 116 delete tri; | |
| 117 delete span; | |
| 118 } | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 | |
| 123 void Polygon::draw(PolygonPack *pp) | |
| 124 { | |
| 125 for(int n=0; n<pp->info.size; n++) | |
| 126 { | |
| 127 Vertex *ver1 = new Vertex(pp->tri[n].ver1.x,pp->tri[n].ver1.y,pp->tri[n].ver1.z,pp->tri[n].ver1.tex_x,pp->tri[n].ver1.tex_y); | |
| 128 Vertex *ver2 = new Vertex(pp->tri[n].ver2.x,pp->tri[n].ver2.y,pp->tri[n].ver2.z,pp->tri[n].ver2.tex_x,pp->tri[n].ver2.tex_y); | |
| 129 Vertex *ver3 = new Vertex(pp->tri[n].ver3.x,pp->tri[n].ver3.y,pp->tri[n].ver3.z,pp->tri[n].ver3.tex_x,pp->tri[n].ver3.tex_y); | |
| 130 | |
| 131 Triangle *tri = new Triangle(ver1,ver2,ver3); | |
| 132 Span_c *span = new Span_c(); | |
| 133 span->viewer = viewer; | |
| 134 span->p = this; | |
| 135 span->create_span(tri,texture_image); | |
| 136 delete ver1; | |
| 137 delete ver2; | |
| 138 delete ver3; | |
| 139 delete tri; | |
| 140 delete span; | |
| 141 } | |
| 142 } | |
| 143 | |
| 144 void Polygon::draw(SpanPack *sp) | |
| 145 { | |
| 146 Span *span; | |
| 147 | |
| 148 for (int n = 0; n < sp->info.size; n++) { | |
| 149 span = &sp->span[n]; | |
| 150 | |
| 151 //int x = span->x; | |
| 152 //int y = span->y; | |
| 153 float z = span->start_z; | |
| 154 int end = span->length_x; | |
| 155 float zpos = span->end_z; | |
| 156 float tex1 = span->tex_x1; | |
| 157 float tex2 = span->tex_x2; | |
| 158 float tey1 = span->tex_y1; | |
| 159 float tey2 = span->tex_y2; | |
| 160 Uint32 rgb; | |
| 161 int tex_xpos; | |
| 162 int tex_ypos; | |
| 163 int tex_zpos; | |
| 164 float tex_x, tex_y, tex_z; | |
| 165 | |
| 166 if (end == 1) { | |
| 167 tex_xpos = (int)((span->tex_height-1) * tex1); | |
| 168 tex_ypos = (int)((span->tex_width-1) * tey1); | |
| 169 tex_zpos = (int)z; | |
| 170 rgb = get_rgb(tex_xpos, tex_ypos); | |
| 171 //viewer->write_pixel(x, y, zpos, rgb); | |
| 172 } else { | |
| 173 for (int j = 0; j < end; j++) { | |
| 174 tex_x = tex1*(end-1-j)/(end-1) + tex2*j/(end-1); | |
| 175 tex_y = tey1*(end-1-j)/(end-1) + tey2*j/(end-1); | |
| 176 tex_z = z*(end-1-j)/(end-1) + zpos*j/(end-1); | |
| 177 if (tex_x > 1) tex_x = 1; | |
| 178 if (tex_y > 1) tex_y = 1; | |
| 179 tex_xpos = (int)((span->tex_height-1) * tex_x); | |
| 180 tex_ypos = (int)((span->tex_width-1) * tex_y); | |
| 181 rgb = get_rgb(tex_xpos,tex_ypos); | |
| 182 //viewer->write_pixel(j + x, y, tex_z, rgb); | |
| 183 } | |
| 184 } | |
| 185 } | |
| 186 } | |
| 187 | |
| 188 #endif | |
| 189 | |
| 190 void Polygon::pickup_coordinate(char *cont) | |
| 191 { | |
| 860 | 192 |
| 193 #if SPE_CREATE_POLYGON | |
| 194 | |
| 195 TrianglePackPtr cur = tri_pack; | |
| 196 | |
| 197 for(int n=0; n<size; n+=3) | |
| 198 { | |
| 199 | |
| 200 cont = pickup_float(cont, &cur->ver1.x); | |
| 201 cont = pickup_float(cont, &cur->ver1.y); | |
| 202 cont = pickup_float(cont, &cur->ver1.z); | |
| 203 | |
| 204 cont = pickup_float(cont, &cur->ver2.x); | |
| 205 cont = pickup_float(cont, &cur->ver2.y); | |
| 206 cont = pickup_float(cont, &cur->ver2.z); | |
| 207 | |
| 208 cont = pickup_float(cont, &cur->ver3.x); | |
| 209 cont = pickup_float(cont, &cur->ver3.y); | |
| 210 cont = pickup_float(cont, &cur->ver3.z); | |
| 211 | |
| 212 cur = cur + 1; | |
| 213 | |
| 214 if (cont == NULL) | |
| 215 { | |
| 216 cout << "Analyzing obj data failed coordinate\n"; | |
| 217 } | |
| 218 } | |
| 219 | |
| 220 #else | |
| 221 | |
|
906
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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222 char *tmp_cont = cont; |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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223 int bound = 8; // coord_vertex size is 8byte. |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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224 int offset = 0; |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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225 |
| 507 | 226 for(int n=0; n<size*3; n+=3) |
| 227 { | |
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906
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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diff
changeset
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228 tmp_cont = pickup_float(tmp_cont, coord_xyz+n); |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
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changeset
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229 tmp_cont = pickup_float(tmp_cont, coord_xyz+n+1); |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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diff
changeset
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230 tmp_cont = pickup_float(tmp_cont, coord_xyz+n+2); |
| 507 | 231 |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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232 if (tmp_cont == NULL) |
| 507 | 233 { |
| 234 cout << "Analyzing obj data failed coordinate\n"; | |
| 235 } | |
| 236 } | |
| 860 | 237 |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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238 tmp_cont = cont; |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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239 |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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240 for(int n=0; n<size; n++) |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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241 { |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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242 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset); |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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243 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+1); |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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244 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+2); |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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245 |
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parents:
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246 if (tmp_cont == NULL) |
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coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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247 { |
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248 cout << "Analyzing obj data failed coordinate\n"; |
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coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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249 } |
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coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
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250 } |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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251 |
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252 #if SPE_CREATE_POLYGON_CHECK |
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253 |
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254 for (int i = 0; i < size; i++) { |
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coord_pack is stuffed with infomation of create polygon at spe.
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255 |
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256 if (*(coord_xyz+i*3) != *(coord_pack+i*bound+offset)) { |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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257 printf("hoge\n"); |
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258 } |
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259 |
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260 if (*(coord_xyz+i*3+1) != *(coord_pack+i*bound+offset+1)) { |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
861
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261 printf("hoge\n"); |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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262 } |
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coord_pack is stuffed with infomation of create polygon at spe.
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263 |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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264 if (*(coord_xyz+i*3+2) != *(coord_pack+i*bound+offset+2)) { |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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265 printf("hoge\n"); |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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266 } |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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267 |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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268 } |
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coord_pack is stuffed with infomation of create polygon at spe.
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269 |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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270 #endif |
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coord_pack is stuffed with infomation of create polygon at spe.
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parents:
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271 |
| 860 | 272 #endif |
| 273 | |
| 507 | 274 } |
| 275 | |
| 276 void Polygon::pickup_normal(char *cont) | |
| 277 { | |
| 860 | 278 |
| 279 #if SPE_CREATE_POLYGON | |
| 280 | |
| 281 TrianglePackPtr cur = tri_pack; | |
| 282 | |
| 283 for(int n=0; n<size; n+=3) | |
| 284 { | |
| 285 | |
| 286 cont = pickup_float(cont, &cur->normal1.x); | |
| 287 cont = pickup_float(cont, &cur->normal1.y); | |
| 288 cont = pickup_float(cont, &cur->normal1.z); | |
| 289 | |
| 290 cont = pickup_float(cont, &cur->normal2.x); | |
| 291 cont = pickup_float(cont, &cur->normal2.y); | |
| 292 cont = pickup_float(cont, &cur->normal2.z); | |
| 293 | |
| 294 cont = pickup_float(cont, &cur->normal3.x); | |
| 295 cont = pickup_float(cont, &cur->normal3.y); | |
| 296 cont = pickup_float(cont, &cur->normal3.z); | |
| 297 | |
| 298 cur = cur + 1; | |
| 299 | |
| 300 if (cont == NULL) | |
| 301 { | |
| 302 cout << "Analyzing obj data failed coordinate\n"; | |
| 303 } | |
| 304 } | |
| 305 | |
| 306 #else | |
| 307 | |
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906
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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308 char *tmp_cont = cont; |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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309 int bound = 8; // coord_pack size is 8byte. |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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310 int offset = 5; // coord_pack (xyz(3) + tex_x,tex_y(2) + n_xyz(3)) |
| 860 | 311 |
| 507 | 312 for (int n = 0; n<size*3; n += 3) |
| 313 { | |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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314 tmp_cont = pickup_float(tmp_cont, normal+n); |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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315 tmp_cont = pickup_float(tmp_cont, normal+n+1); |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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316 tmp_cont = pickup_float(tmp_cont, normal+n+2); |
| 507 | 317 |
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906
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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318 if (tmp_cont == NULL) |
| 507 | 319 { |
| 320 cout << "Analyzing obj data failed normal\n"; | |
| 321 } | |
| 322 } | |
| 860 | 323 |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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324 tmp_cont = cont; |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
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325 |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
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parents:
861
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changeset
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326 for(int n=0; n<size; n++) |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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327 { |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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328 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset); |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
|
329 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+1); |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
|
330 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+2); |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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331 |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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332 if (tmp_cont == NULL) |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
|
333 { |
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348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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334 cout << "Analyzing obj data failed coordinate\n"; |
|
348b48db317e
coord_pack is stuffed with infomation of create polygon at spe.
Yutaka_Kinjyo
parents:
861
diff
changeset
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335 } |
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336 } |
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337 |
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338 #if SPE_CREATE_POLYGON_CHECK |
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339 |
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340 for (int i = 0; i < size; i++) { |
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341 |
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342 if (*(normal+i*3) != *(coord_pack+i*bound+offset)) { |
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343 printf("hoge\n"); |
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344 } |
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345 |
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346 if (*(normal+i*3+1) != *(coord_pack+i*bound+offset+1)) { |
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347 printf("hoge\n"); |
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348 } |
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349 |
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350 if (*(normal+i*3+2) != *(coord_pack+i*bound+offset+2)) { |
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351 printf("hoge\n"); |
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352 } |
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353 |
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354 } |
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355 |
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356 #endif |
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357 |
| 860 | 358 #endif |
| 359 | |
| 507 | 360 } |
| 361 | |
| 362 void Polygon::pickup_model(char *cont) | |
| 363 { | |
| 364 cont = pickup_float(cont,c_xyz); | |
| 365 cont = pickup_float(cont,c_xyz+1); | |
| 366 cont = pickup_float(cont,c_xyz+2); | |
| 367 | |
| 368 if (cont == NULL) | |
| 369 { | |
| 370 cout << "Analyzing obj data failed model\n"; | |
| 371 } | |
| 372 } | |
| 373 | |
| 374 void Polygon::pickup_texture(char *cont) | |
| 375 { | |
| 860 | 376 |
| 377 #if SPE_CREATE_POLYGON | |
| 378 | |
| 379 TrianglePackPtr cur = tri_pack; | |
| 380 | |
| 381 for(int n=0; n<size; n+=3) | |
| 382 { | |
| 383 | |
| 384 cont = pickup_float(cont, &cur->ver1.tex_x); | |
| 385 cont = pickup_float(cont, &cur->ver1.tex_y); | |
| 386 | |
| 387 cont = pickup_float(cont, &cur->ver2.tex_x); | |
| 388 cont = pickup_float(cont, &cur->ver2.tex_y); | |
| 389 | |
| 390 cont = pickup_float(cont, &cur->ver3.tex_x); | |
| 391 cont = pickup_float(cont, &cur->ver3.tex_y); | |
| 392 | |
| 393 cur = cur + 1; | |
| 394 | |
| 395 if (cont == NULL) | |
| 396 { | |
| 397 cout << "Analyzing obj data failed coordinate\n"; | |
| 398 } | |
| 399 } | |
| 400 | |
| 401 #else | |
| 402 | |
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403 char *tmp_cont = cont; |
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404 int bound = 8; // coord_pack size is 8byte. |
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405 int offset = 3; // coord_pack (xyz(3) + tex_x,tex_y(2) + n_xyz(3)) |
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406 |
| 507 | 407 for (int n = 0; n < size*3; n += 3) |
| 408 { | |
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409 tmp_cont = pickup_float(tmp_cont, coord_tex+n); |
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410 tmp_cont = pickup_float(tmp_cont, coord_tex+n+1); |
| 507 | 411 coord_tex[n+2] = 1.0; |
| 412 | |
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413 if (tmp_cont == NULL) |
| 507 | 414 { |
| 415 cout << "Analyzing obj data failed texture\n"; | |
| 416 } | |
| 417 } | |
| 860 | 418 |
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419 tmp_cont = cont; |
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420 |
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421 for(int n=0; n<size; n++) |
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422 { |
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423 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset); |
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424 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+1); |
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425 |
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426 if (tmp_cont == NULL) |
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427 { |
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428 cout << "Analyzing obj data failed coordinate\n"; |
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429 } |
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430 } |
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431 |
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432 #if SPE_CREATE_POLYGON_CHECK |
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433 |
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434 for (int i = 0; i < size; i++) { |
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435 |
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436 if (*(coord_tex+i*3) != *(coord_pack+i*bound+offset)) { |
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437 printf("hoge\n"); |
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438 } |
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439 |
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440 if (*(coord_tex+i*3+1) != *(coord_pack+i*bound+offset+1)) { |
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441 printf("hoge\n"); |
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442 } |
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443 |
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444 |
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445 } |
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446 |
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447 #endif |
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448 |
| 860 | 449 #endif |
| 450 | |
| 507 | 451 } |
| 452 | |
| 453 char *get_pixel(int tx, int ty, SDL_Surface *texture_image) | |
| 454 { | |
| 455 return (char*)texture_image->pixels+(texture_image->format->BytesPerPixel*((texture_image->w)*ty+tx)); | |
| 456 } | |
| 457 | |
| 458 unsigned my_ntohl(unsigned u) { | |
| 459 // rr gg bb 00 | |
| 460 // rr | |
| 461 // bb gg rr | |
| 462 //unsigned u1 = ((u&0xff)<<24) + | |
| 463 // ((u&0xff00)<<8) + | |
| 464 // ((u&0xff0000)>>8) + | |
| 465 // ((u&0xff000000)>>24); | |
| 466 unsigned u1; | |
| 467 unsigned b = (u&0xff000000)>>24; | |
| 468 unsigned g = (u&0xff0000)>>16; | |
| 469 unsigned r = (u&0xff00)>>8; | |
| 470 u1 = r + (g<<8) + (b<<16); | |
| 471 //printf("pixel %x->%x\n",u,u1); | |
| 472 return u1; | |
| 473 } | |
| 474 | |
| 475 Uint32 Polygon::get_rgb(int tx, int ty) | |
| 476 { | |
| 477 SDL_PixelFormat *fmt; | |
| 478 //Uint32 temp, pixel; | |
| 479 Uint8 red, green, blue; | |
| 480 | |
| 481 fmt = texture_image->format; | |
| 482 | |
| 483 if (tx<0) tx = 0; | |
| 484 if (texture_image->w-1< tx) tx = texture_image->w-1 ; | |
| 485 if (ty<0) ty = 0; | |
| 486 if (texture_image->h-1< ty) ty = texture_image->h-1 ; | |
| 487 | |
| 488 | |
| 489 | |
| 490 //SDL_LockSurface(texture_image); | |
| 491 char *p = get_pixel(tx,ty,texture_image); | |
| 492 #if 0 | |
| 493 pixel = my_ntohl(*(Uint32*)p); | |
| 494 //printf("pixel = %d\n", pixel); | |
| 495 //printf("pixel %x bpp = %d ",p, fmt->BytesPerPixel); | |
| 496 //SDL_UnlockSurface(texture_image); | |
| 497 | |
| 498 temp = pixel&fmt->Rmask; | |
| 499 temp = temp>>fmt->Rshift; | |
| 500 temp = temp<<fmt->Rloss; | |
| 501 red = (Uint8)temp; | |
| 502 | |
| 503 temp = pixel&fmt->Gmask; | |
| 504 temp = temp>>fmt->Gshift; | |
| 505 temp = temp<<fmt->Gloss; | |
| 506 green = (Uint8)temp; | |
| 507 | |
| 508 temp = pixel&fmt->Bmask; | |
| 509 temp = temp>>fmt->Bshift; | |
| 510 temp = temp<<fmt->Bloss; | |
| 511 blue = (Uint8)temp; | |
| 512 #endif | |
| 513 blue = (Uint8) p[0]; | |
| 514 green = (Uint8) p[1]; | |
| 515 red = (Uint8) p[2]; | |
| 516 | |
| 517 //printf("tx = %d ty = %d ", tx,ty); | |
| 518 //printf("pixel color => R: %d, G: %d, B: %d\n", red, green, blue); | |
| 519 | |
| 520 SDL_PixelFormat *pf = NULL; | |
| 521 //pf = viewer->screen->format; | |
| 522 | |
| 523 //cout << SDL_MapRGB(pf, red, green, blue) << endl; | |
| 524 return SDL_MapRGB(pf, red, green, blue); | |
| 525 } |