Mercurial > hg > Members > kono > Cerium
annotate Renderer/Engine/polygon.cc @ 1047:6a80ca9a65d9
broken texure ( h/w != 2^n ) protection
| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Wed, 08 Dec 2010 05:38:45 +0900 |
| parents | 2683838396c6 |
| children |
| 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 | |
| 18 Polygon::Polygon(void) | |
| 19 { | |
| 20 xyz[0] = 0; | |
| 21 xyz[1] = 0; | |
| 22 xyz[2] = 0; | |
| 23 xyz[3] = 1; | |
| 24 c_xyz[0] = 0; | |
| 25 c_xyz[1] = 0; | |
| 26 c_xyz[2] = 0; | |
| 27 c_xyz[3] = 1; | |
| 28 angle[0] = 0; | |
| 29 angle[1] = 0; | |
| 30 angle[2] = 0; | |
| 31 angle[3] = 1; | |
| 32 | |
| 861 | 33 |
| 34 #if !SPE_CREATE_POLYGON | |
| 35 | |
| 507 | 36 for (int i = 0; i < 16; i++) { |
| 37 matrix[i] = 0; | |
| 38 } | |
| 861 | 39 |
| 40 #endif | |
| 41 | |
| 507 | 42 } |
| 43 | |
| 44 void | |
| 45 Polygon::position_init(void) | |
| 46 { | |
| 47 xyz[0] = 0; | |
| 48 xyz[1] = 0; | |
| 49 xyz[2] = 0; | |
| 50 xyz[3] = 1; | |
| 51 c_xyz[0] = 0; | |
| 52 c_xyz[1] = 0; | |
| 53 c_xyz[2] = 0; | |
| 54 c_xyz[3] = 1; | |
| 55 angle[0] = 0; | |
| 56 angle[1] = 0; | |
| 57 angle[2] = 0; | |
| 58 angle[3] = 1; | |
| 59 | |
| 861 | 60 |
| 61 #if !SPE_CREATE_POLYGON | |
| 62 | |
| 507 | 63 for (int i = 0; i < 16; i++) { |
| 64 matrix[i] = 0; | |
| 65 } | |
| 861 | 66 |
| 67 #endif | |
| 68 | |
| 507 | 69 } |
| 70 | |
| 71 #if 0 | |
| 72 void Polygon::draw(SceneGraphPack *sgp) | |
| 73 { | |
| 74 float xyz1[4],xyz2[4],xyz3[4]; | |
| 75 | |
| 76 /***SceneGraphUpdate***/ | |
| 77 //sgp_update(); | |
| 78 for (int i = 0; i < sgp->info.size; i++) { | |
| 79 SceneGraphNode node = sgp->node[i]; | |
| 80 | |
| 81 /***draw***/ | |
| 82 int n,nt; | |
| 83 for(n=0,nt=0; n<node.size*3; n+=9,nt+=6) { | |
| 84 xyz1[0] = node.vertex[n]; | |
| 85 xyz1[1] = node.vertex[n+1]; | |
| 86 xyz1[2] = node.vertex[n+2]*-1; | |
| 87 xyz1[3] = 1; | |
| 88 xyz2[0] = node.vertex[n+3]; | |
| 89 xyz2[1] = node.vertex[n+3+1]; | |
| 90 xyz2[2] = node.vertex[n+3+2]*-1; | |
| 91 xyz2[3] = 1; | |
| 92 xyz3[0] = node.vertex[n+6]; | |
| 93 xyz3[1] = node.vertex[n+6+1]; | |
| 94 xyz3[2] = node.vertex[n+6+2]*-1; | |
| 95 xyz3[3] = 1; | |
| 96 | |
| 97 rotate(xyz1, node.translation); | |
| 98 rotate(xyz2, node.translation); | |
| 99 rotate(xyz3, node.translation); | |
| 100 | |
| 101 Vertex *ver1 = new Vertex(xyz1[0],xyz1[1],xyz1[2],node.texture[nt],node.texture[nt+1]); | |
| 102 Vertex *ver2 = new Vertex(xyz2[0],xyz2[1],xyz2[2],node.texture[nt+2],node.texture[nt+2+1]); | |
| 103 Vertex *ver3 = new Vertex(xyz3[0],xyz3[1],xyz3[2],node.texture[nt+4],node.texture[nt+4+1]); | |
| 104 | |
| 105 Triangle *tri = new Triangle(ver1,ver2,ver3); | |
| 106 Span_c *span = new Span_c(); | |
| 107 span->viewer = viewer; | |
| 108 span->p = this; | |
| 109 span->create_span(tri,texture_image); | |
| 110 delete ver1; | |
| 111 delete ver2; | |
| 112 delete ver3; | |
| 113 delete tri; | |
| 114 delete span; | |
| 115 } | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 | |
| 120 void Polygon::draw(PolygonPack *pp) | |
| 121 { | |
| 122 for(int n=0; n<pp->info.size; n++) | |
| 123 { | |
| 124 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); | |
| 125 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); | |
| 126 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); | |
| 127 | |
| 128 Triangle *tri = new Triangle(ver1,ver2,ver3); | |
| 129 Span_c *span = new Span_c(); | |
| 130 span->viewer = viewer; | |
| 131 span->p = this; | |
| 132 span->create_span(tri,texture_image); | |
| 133 delete ver1; | |
| 134 delete ver2; | |
| 135 delete ver3; | |
| 136 delete tri; | |
| 137 delete span; | |
| 138 } | |
| 139 } | |
| 140 | |
| 141 void Polygon::draw(SpanPack *sp) | |
| 142 { | |
| 143 Span *span; | |
| 144 | |
| 145 for (int n = 0; n < sp->info.size; n++) { | |
| 146 span = &sp->span[n]; | |
| 147 | |
| 148 //int x = span->x; | |
| 149 //int y = span->y; | |
| 150 float z = span->start_z; | |
| 151 int end = span->length_x; | |
| 152 float zpos = span->end_z; | |
| 153 float tex1 = span->tex_x1; | |
| 154 float tex2 = span->tex_x2; | |
| 155 float tey1 = span->tex_y1; | |
| 156 float tey2 = span->tex_y2; | |
| 157 Uint32 rgb; | |
| 158 int tex_xpos; | |
| 159 int tex_ypos; | |
| 160 int tex_zpos; | |
| 161 float tex_x, tex_y, tex_z; | |
| 162 | |
| 163 if (end == 1) { | |
| 164 tex_xpos = (int)((span->tex_height-1) * tex1); | |
| 165 tex_ypos = (int)((span->tex_width-1) * tey1); | |
| 166 tex_zpos = (int)z; | |
| 167 rgb = get_rgb(tex_xpos, tex_ypos); | |
| 168 //viewer->write_pixel(x, y, zpos, rgb); | |
| 169 } else { | |
| 170 for (int j = 0; j < end; j++) { | |
| 171 tex_x = tex1*(end-1-j)/(end-1) + tex2*j/(end-1); | |
| 172 tex_y = tey1*(end-1-j)/(end-1) + tey2*j/(end-1); | |
| 173 tex_z = z*(end-1-j)/(end-1) + zpos*j/(end-1); | |
| 174 if (tex_x > 1) tex_x = 1; | |
| 175 if (tex_y > 1) tex_y = 1; | |
| 176 tex_xpos = (int)((span->tex_height-1) * tex_x); | |
| 177 tex_ypos = (int)((span->tex_width-1) * tex_y); | |
| 178 rgb = get_rgb(tex_xpos,tex_ypos); | |
| 179 //viewer->write_pixel(j + x, y, tex_z, rgb); | |
| 180 } | |
| 181 } | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 #endif | |
| 186 | |
| 187 void Polygon::pickup_coordinate(char *cont) | |
| 188 { | |
| 860 | 189 |
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190 char *tmp_cont = cont; |
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191 int bound = 8; // coord_vertex size is 8byte. |
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192 int offset = 0; |
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193 |
| 507 | 194 for(int n=0; n<size*3; n+=3) |
| 195 { | |
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196 tmp_cont = pickup_float(tmp_cont, coord_xyz+n); |
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197 tmp_cont = pickup_float(tmp_cont, coord_xyz+n+1); |
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198 tmp_cont = pickup_float(tmp_cont, coord_xyz+n+2); |
| 507 | 199 |
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200 if (tmp_cont == NULL) |
| 507 | 201 { |
| 202 cout << "Analyzing obj data failed coordinate\n"; | |
| 203 } | |
| 204 } | |
| 860 | 205 |
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206 tmp_cont = cont; |
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207 |
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208 for(int n=0; n<size; n++) |
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209 { |
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210 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset); |
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211 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+1); |
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212 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+2); |
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213 |
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214 if (tmp_cont == NULL) |
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215 { |
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216 cout << "Analyzing obj data failed coordinate\n"; |
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217 } |
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218 } |
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219 |
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220 #if SPE_CREATE_POLYGON_CHECK |
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221 |
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222 for (int i = 0; i < size; i++) { |
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223 |
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224 if (*(coord_xyz+i*3) != *(coord_pack+i*bound+offset)) { |
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225 printf("hoge\n"); |
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226 } |
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227 |
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228 if (*(coord_xyz+i*3+1) != *(coord_pack+i*bound+offset+1)) { |
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229 printf("hoge\n"); |
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230 } |
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231 |
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232 if (*(coord_xyz+i*3+2) != *(coord_pack+i*bound+offset+2)) { |
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233 printf("hoge\n"); |
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234 } |
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235 |
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236 } |
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237 |
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238 #endif |
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239 |
| 507 | 240 } |
| 241 | |
| 242 void Polygon::pickup_normal(char *cont) | |
| 243 { | |
| 860 | 244 |
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245 char *tmp_cont = cont; |
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246 int bound = 8; // coord_pack size is 8byte. |
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247 int offset = 5; // coord_pack (xyz(3) + tex_x,tex_y(2) + n_xyz(3)) |
| 860 | 248 |
| 507 | 249 for (int n = 0; n<size*3; n += 3) |
| 250 { | |
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251 tmp_cont = pickup_float(tmp_cont, normal+n); |
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252 tmp_cont = pickup_float(tmp_cont, normal+n+1); |
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253 tmp_cont = pickup_float(tmp_cont, normal+n+2); |
| 507 | 254 |
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255 if (tmp_cont == NULL) |
| 507 | 256 { |
| 257 cout << "Analyzing obj data failed normal\n"; | |
| 258 } | |
| 259 } | |
| 860 | 260 |
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261 tmp_cont = cont; |
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262 |
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263 for(int n=0; n<size; n++) |
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264 { |
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265 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset); |
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266 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+1); |
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267 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+2); |
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268 |
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269 if (tmp_cont == NULL) |
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270 { |
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271 cout << "Analyzing obj data failed coordinate\n"; |
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272 } |
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273 } |
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274 |
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275 #if SPE_CREATE_POLYGON_CHECK |
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276 |
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277 for (int i = 0; i < size; i++) { |
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278 |
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279 if (*(normal+i*3) != *(coord_pack+i*bound+offset)) { |
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280 printf("hoge\n"); |
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281 } |
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282 |
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283 if (*(normal+i*3+1) != *(coord_pack+i*bound+offset+1)) { |
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284 printf("hoge\n"); |
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285 } |
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286 |
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287 if (*(normal+i*3+2) != *(coord_pack+i*bound+offset+2)) { |
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288 printf("hoge\n"); |
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289 } |
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290 |
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291 } |
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292 |
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293 #endif |
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294 |
| 507 | 295 } |
| 296 | |
| 297 void Polygon::pickup_model(char *cont) | |
| 298 { | |
| 299 cont = pickup_float(cont,c_xyz); | |
| 300 cont = pickup_float(cont,c_xyz+1); | |
| 301 cont = pickup_float(cont,c_xyz+2); | |
| 302 | |
| 303 if (cont == NULL) | |
| 304 { | |
| 305 cout << "Analyzing obj data failed model\n"; | |
| 306 } | |
| 307 } | |
| 308 | |
| 309 void Polygon::pickup_texture(char *cont) | |
| 310 { | |
| 860 | 311 |
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312 char *tmp_cont = cont; |
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313 int bound = 8; // coord_pack size is 8byte. |
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314 int offset = 3; // coord_pack (xyz(3) + tex_x,tex_y(2) + n_xyz(3)) |
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315 |
| 507 | 316 for (int n = 0; n < size*3; n += 3) |
| 317 { | |
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318 tmp_cont = pickup_float(tmp_cont, coord_tex+n); |
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319 tmp_cont = pickup_float(tmp_cont, coord_tex+n+1); |
| 507 | 320 coord_tex[n+2] = 1.0; |
| 321 | |
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322 if (tmp_cont == NULL) |
| 507 | 323 { |
| 324 cout << "Analyzing obj data failed texture\n"; | |
| 325 } | |
| 326 } | |
| 860 | 327 |
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328 tmp_cont = cont; |
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329 |
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330 for(int n=0; n<size; n++) |
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331 { |
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332 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset); |
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333 tmp_cont = pickup_float(tmp_cont, coord_pack+n*bound+offset+1); |
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334 |
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335 if (tmp_cont == NULL) |
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336 { |
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337 cout << "Analyzing obj data failed coordinate\n"; |
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338 } |
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339 } |
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340 |
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341 #if SPE_CREATE_POLYGON_CHECK |
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342 |
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343 for (int i = 0; i < size; i++) { |
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344 |
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345 if (*(coord_tex+i*3) != *(coord_pack+i*bound+offset)) { |
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346 printf("hoge\n"); |
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347 } |
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348 |
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349 if (*(coord_tex+i*3+1) != *(coord_pack+i*bound+offset+1)) { |
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350 printf("hoge\n"); |
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351 } |
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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 |
| 507 | 358 } |
| 359 | |
| 360 char *get_pixel(int tx, int ty, SDL_Surface *texture_image) | |
| 361 { | |
| 362 return (char*)texture_image->pixels+(texture_image->format->BytesPerPixel*((texture_image->w)*ty+tx)); | |
| 363 } | |
| 364 | |
| 365 unsigned my_ntohl(unsigned u) { | |
| 366 // rr gg bb 00 | |
| 367 // rr | |
| 368 // bb gg rr | |
| 369 //unsigned u1 = ((u&0xff)<<24) + | |
| 370 // ((u&0xff00)<<8) + | |
| 371 // ((u&0xff0000)>>8) + | |
| 372 // ((u&0xff000000)>>24); | |
| 373 unsigned u1; | |
| 374 unsigned b = (u&0xff000000)>>24; | |
| 375 unsigned g = (u&0xff0000)>>16; | |
| 376 unsigned r = (u&0xff00)>>8; | |
| 377 u1 = r + (g<<8) + (b<<16); | |
| 378 //printf("pixel %x->%x\n",u,u1); | |
| 379 return u1; | |
| 380 } | |
| 381 | |
| 382 Uint32 Polygon::get_rgb(int tx, int ty) | |
| 383 { | |
| 384 SDL_PixelFormat *fmt; | |
| 385 //Uint32 temp, pixel; | |
| 386 Uint8 red, green, blue; | |
| 387 | |
| 388 fmt = texture_image->format; | |
| 389 | |
| 390 if (tx<0) tx = 0; | |
| 391 if (texture_image->w-1< tx) tx = texture_image->w-1 ; | |
| 392 if (ty<0) ty = 0; | |
| 393 if (texture_image->h-1< ty) ty = texture_image->h-1 ; | |
| 394 | |
| 395 | |
| 396 | |
| 397 //SDL_LockSurface(texture_image); | |
| 398 char *p = get_pixel(tx,ty,texture_image); | |
| 399 #if 0 | |
| 400 pixel = my_ntohl(*(Uint32*)p); | |
| 401 //printf("pixel = %d\n", pixel); | |
| 402 //printf("pixel %x bpp = %d ",p, fmt->BytesPerPixel); | |
| 403 //SDL_UnlockSurface(texture_image); | |
| 404 | |
| 405 temp = pixel&fmt->Rmask; | |
| 406 temp = temp>>fmt->Rshift; | |
| 407 temp = temp<<fmt->Rloss; | |
| 408 red = (Uint8)temp; | |
| 409 | |
| 410 temp = pixel&fmt->Gmask; | |
| 411 temp = temp>>fmt->Gshift; | |
| 412 temp = temp<<fmt->Gloss; | |
| 413 green = (Uint8)temp; | |
| 414 | |
| 415 temp = pixel&fmt->Bmask; | |
| 416 temp = temp>>fmt->Bshift; | |
| 417 temp = temp<<fmt->Bloss; | |
| 418 blue = (Uint8)temp; | |
| 419 #endif | |
| 420 blue = (Uint8) p[0]; | |
| 421 green = (Uint8) p[1]; | |
| 422 red = (Uint8) p[2]; | |
| 423 | |
| 424 //printf("tx = %d ty = %d ", tx,ty); | |
| 425 //printf("pixel color => R: %d, G: %d, B: %d\n", red, green, blue); | |
| 426 | |
| 427 SDL_PixelFormat *pf = NULL; | |
| 428 //pf = viewer->screen->format; | |
| 429 | |
| 430 //cout << SDL_MapRGB(pf, red, green, blue) << endl; | |
| 431 return SDL_MapRGB(pf, red, green, blue); | |
| 432 } |