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1 | /*************************************************************************** |
| 2 | * Copyright (C) 2010 PCSX4ALL Team * |
| 3 | * Copyright (C) 2010 Unai * |
| 4 | * * |
| 5 | * This program is free software; you can redistribute it and/or modify * |
| 6 | * it under the terms of the GNU General Public License as published by * |
| 7 | * the Free Software Foundation; either version 2 of the License, or * |
| 8 | * (at your option) any later version. * |
| 9 | * * |
| 10 | * This program is distributed in the hope that it will be useful, * |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 13 | * GNU General Public License for more details. * |
| 14 | * * |
| 15 | * You should have received a copy of the GNU General Public License * |
| 16 | * along with this program; if not, write to the * |
| 17 | * Free Software Foundation, Inc., * |
| 18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * |
| 19 | ***************************************************************************/ |
| 20 | |
| 21 | #ifndef __GPU_UNAI_GPU_RASTER_POLYGON_H__ |
| 22 | #define __GPU_UNAI_GPU_RASTER_POLYGON_H__ |
| 23 | |
| 24 | //senquack - NOTE: GPU Unai poly routines have been rewritten/adapted |
| 25 | // from DrHell routines to fix multiple issues. See README_senquack.txt |
| 26 | |
| 27 | /////////////////////////////////////////////////////////////////////////////// |
| 28 | // Shared poly vertex buffer, able to handle 3 or 4-pt polys of any type. |
| 29 | /////////////////////////////////////////////////////////////////////////////// |
| 30 | |
| 31 | struct PolyVertex { |
| 32 | s32 x, y; // Sign-extended 11-bit X,Y coords |
| 33 | union { |
| e223fa15 |
34 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
| 35 | struct { u8 pad[2], v, u; } tex; // Texture coords (if used) |
| 36 | #else |
| 0bfe8d59 |
37 | struct { u8 u, v, pad[2]; } tex; // Texture coords (if used) |
| e223fa15 |
38 | #endif |
| 0bfe8d59 |
39 | u32 tex_word; |
| 40 | }; |
| 41 | union { |
| e223fa15 |
42 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
| 43 | struct { u8 pad, b, g, r; } col; // 24-bit RGB color (if used) |
| 44 | #else |
| 0bfe8d59 |
45 | struct { u8 r, g, b, pad; } col; // 24-bit RGB color (if used) |
| e223fa15 |
46 | #endif |
| 0bfe8d59 |
47 | u32 col_word; |
| 48 | }; |
| 49 | }; |
| 50 | |
| 51 | enum PolyAttribute { |
| 52 | POLYATTR_TEXTURE = (1 << 0), |
| 53 | POLYATTR_GOURAUD = (1 << 1) |
| 54 | }; |
| 55 | |
| 56 | enum PolyType { |
| 57 | POLYTYPE_F = 0, |
| 58 | POLYTYPE_FT = (POLYATTR_TEXTURE), |
| 59 | POLYTYPE_G = (POLYATTR_GOURAUD), |
| 60 | POLYTYPE_GT = (POLYATTR_TEXTURE | POLYATTR_GOURAUD) |
| 61 | }; |
| 62 | |
| 63 | /////////////////////////////////////////////////////////////////////////////// |
| 64 | // polyInitVertexBuffer() |
| 65 | // Fills vbuf[] array with data from any type of poly draw-command packet. |
| 66 | /////////////////////////////////////////////////////////////////////////////// |
| 67 | static void polyInitVertexBuffer(PolyVertex *vbuf, const PtrUnion packet, PolyType ptype, u32 is_quad) |
| 68 | { |
| 69 | bool texturing = ptype & POLYATTR_TEXTURE; |
| 70 | bool gouraud = ptype & POLYATTR_GOURAUD; |
| 71 | |
| 72 | int vert_stride = 1; // Stride of vertices in cmd packet, in 32-bit words |
| 73 | if (texturing) |
| 74 | vert_stride++; |
| 75 | if (gouraud) |
| 76 | vert_stride++; |
| 77 | |
| 78 | int num_verts = (is_quad) ? 4 : 3; |
| e223fa15 |
79 | le32_t *ptr; |
| 0bfe8d59 |
80 | |
| 81 | // X,Y coords, adjusted by draw offsets |
| e223fa15 |
82 | s32 x_off = gpu_unai.DrawingOffset[0]; |
| 83 | s32 y_off = gpu_unai.DrawingOffset[1]; |
| 0bfe8d59 |
84 | ptr = &packet.U4[1]; |
| 85 | for (int i=0; i < num_verts; ++i, ptr += vert_stride) { |
| e223fa15 |
86 | u32 coords = le32_to_u32(*ptr); |
| 87 | vbuf[i].x = GPU_EXPANDSIGN((s16)coords) + x_off; |
| 88 | vbuf[i].y = GPU_EXPANDSIGN((s16)(coords >> 16)) + y_off; |
| 0bfe8d59 |
89 | } |
| 90 | |
| 91 | // U,V texture coords (if applicable) |
| 92 | if (texturing) { |
| 93 | ptr = &packet.U4[2]; |
| 94 | for (int i=0; i < num_verts; ++i, ptr += vert_stride) |
| e223fa15 |
95 | vbuf[i].tex_word = le32_to_u32(*ptr); |
| 0bfe8d59 |
96 | } |
| 97 | |
| 98 | // Colors (if applicable) |
| 99 | if (gouraud) { |
| 100 | ptr = &packet.U4[0]; |
| 101 | for (int i=0; i < num_verts; ++i, ptr += vert_stride) |
| e223fa15 |
102 | vbuf[i].col_word = le32_to_u32(*ptr); |
| 0bfe8d59 |
103 | } |
| 104 | } |
| 105 | |
| 106 | /////////////////////////////////////////////////////////////////////////////// |
| 107 | // Helper functions to determine which vertex in a 2 or 3 vertex array |
| 108 | // has the highest/lowest X/Y coordinate. |
| 109 | // Note: the comparison logic is such that, given a set of vertices with |
| 110 | // identical values for a given coordinate, a different index will be |
| 111 | // returned from vertIdxOfLeast..() than a call to vertIdxOfHighest..(). |
| 112 | // This ensures that, during the vertex-ordering phase of rasterization, |
| 113 | // all three vertices remain unique. |
| 114 | /////////////////////////////////////////////////////////////////////////////// |
| 115 | |
| 116 | template<typename T> |
| 117 | static inline int vertIdxOfLeastXCoord2(const T *Tptr) |
| 118 | { |
| 119 | return (Tptr[0].x <= Tptr[1].x) ? 0 : 1; |
| 120 | } |
| 121 | |
| 122 | template<typename T> |
| 123 | static inline int vertIdxOfLeastXCoord3(const T *Tptr) |
| 124 | { |
| 125 | int least_of_v0_v1 = vertIdxOfLeastXCoord2(Tptr); |
| 126 | return (Tptr[least_of_v0_v1].x <= Tptr[2].x) ? least_of_v0_v1 : 2; |
| 127 | } |
| 128 | |
| 129 | template<typename T> |
| 130 | static inline int vertIdxOfLeastYCoord2(const T *Tptr) |
| 131 | { |
| 132 | return (Tptr[0].y <= Tptr[1].y) ? 0 : 1; |
| 133 | } |
| 134 | |
| 135 | template<typename T> |
| 136 | static inline int vertIdxOfLeastYCoord3(const T *Tptr) |
| 137 | { |
| 138 | int least_of_v0_v1 = vertIdxOfLeastYCoord2(Tptr); |
| 139 | return (Tptr[least_of_v0_v1].y <= Tptr[2].y) ? least_of_v0_v1 : 2; |
| 140 | } |
| 141 | |
| 142 | template<typename T> |
| 143 | static inline int vertIdxOfHighestXCoord2(const T *Tptr) |
| 144 | { |
| 145 | return (Tptr[1].x >= Tptr[0].x) ? 1 : 0; |
| 146 | } |
| 147 | |
| 148 | template<typename T> |
| 149 | static inline int vertIdxOfHighestXCoord3(const T *Tptr) |
| 150 | { |
| 151 | int highest_of_v0_v1 = vertIdxOfHighestXCoord2(Tptr); |
| 152 | return (Tptr[2].x >= Tptr[highest_of_v0_v1].x) ? 2 : highest_of_v0_v1; |
| 153 | } |
| 154 | |
| 155 | template<typename T> |
| 156 | static inline int vertIdxOfHighestYCoord2(const T *Tptr) |
| 157 | { |
| 158 | return (Tptr[1].y >= Tptr[0].y) ? 1 : 0; |
| 159 | } |
| 160 | |
| 161 | template<typename T> |
| 162 | static inline int vertIdxOfHighestYCoord3(const T *Tptr) |
| 163 | { |
| 164 | int highest_of_v0_v1 = vertIdxOfHighestYCoord2(Tptr); |
| 165 | return (Tptr[2].y >= Tptr[highest_of_v0_v1].y) ? 2 : highest_of_v0_v1; |
| 166 | } |
| 167 | |
| 168 | /////////////////////////////////////////////////////////////////////////////// |
| 169 | // polyUseTriangle() |
| 170 | // Determines if the specified triangle should be rendered. If so, it |
| 171 | // fills the given array of vertex pointers, vert_ptrs, in order of |
| 172 | // increasing Y coordinate values, as required by rasterization algorithm. |
| 173 | // Parameter 'tri_num' is 0 for first triangle (idx 0,1,2 of vbuf[]), |
| 174 | // or 1 for second triangle of a quad (idx 1,2,3 of vbuf[]). |
| 175 | // Returns true if triangle should be rendered, false if not. |
| 176 | /////////////////////////////////////////////////////////////////////////////// |
| 177 | static bool polyUseTriangle(const PolyVertex *vbuf, int tri_num, const PolyVertex **vert_ptrs) |
| 178 | { |
| 179 | // Using verts 0,1,2 or is this the 2nd pass of a quad (verts 1,2,3)? |
| 180 | const PolyVertex *tri_ptr = &vbuf[(tri_num == 0) ? 0 : 1]; |
| 181 | |
| 182 | // Get indices of highest/lowest X,Y coords within triangle |
| 183 | int idx_lowest_x = vertIdxOfLeastXCoord3(tri_ptr); |
| 184 | int idx_highest_x = vertIdxOfHighestXCoord3(tri_ptr); |
| 185 | int idx_lowest_y = vertIdxOfLeastYCoord3(tri_ptr); |
| 186 | int idx_highest_y = vertIdxOfHighestYCoord3(tri_ptr); |
| 187 | |
| 188 | // Maximum absolute distance between any two X coordinates is 1023, |
| 189 | // and for Y coordinates is 511 (PS1 hardware limitation) |
| 190 | int lowest_x = tri_ptr[idx_lowest_x].x; |
| 191 | int highest_x = tri_ptr[idx_highest_x].x; |
| 192 | int lowest_y = tri_ptr[idx_lowest_y].y; |
| 193 | int highest_y = tri_ptr[idx_highest_y].y; |
| 194 | if ((highest_x - lowest_x) >= CHKMAX_X || |
| 195 | (highest_y - lowest_y) >= CHKMAX_Y) |
| 196 | return false; |
| 197 | |
| 198 | // Determine if triangle is completely outside clipping range |
| 199 | int xmin, xmax, ymin, ymax; |
| e223fa15 |
200 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
| 201 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
| 0bfe8d59 |
202 | int clipped_lowest_x = Max2(xmin,lowest_x); |
| 203 | int clipped_lowest_y = Max2(ymin,lowest_y); |
| 204 | int clipped_highest_x = Min2(xmax,highest_x); |
| 205 | int clipped_highest_y = Min2(ymax,highest_y); |
| 206 | if (clipped_lowest_x >= clipped_highest_x || |
| 207 | clipped_lowest_y >= clipped_highest_y) |
| 208 | return false; |
| 209 | |
| 210 | // Order vertex ptrs by increasing y value (draw routines need this). |
| 211 | // The middle index is deduced by a binary math trick that depends |
| 212 | // on index range always being between 0..2 |
| 213 | vert_ptrs[0] = tri_ptr + idx_lowest_y; |
| 214 | vert_ptrs[1] = tri_ptr + ((idx_lowest_y + idx_highest_y) ^ 3); |
| 215 | vert_ptrs[2] = tri_ptr + idx_highest_y; |
| 216 | return true; |
| 217 | } |
| 218 | |
| 219 | /////////////////////////////////////////////////////////////////////////////// |
| 220 | // GPU internal polygon drawing functions |
| 221 | /////////////////////////////////////////////////////////////////////////////// |
| 222 | |
| 223 | /*---------------------------------------------------------------------- |
| 224 | gpuDrawPolyF - Flat-shaded, untextured poly |
| 225 | ----------------------------------------------------------------------*/ |
| 226 | void gpuDrawPolyF(const PtrUnion packet, const PP gpuPolySpanDriver, u32 is_quad) |
| 227 | { |
| 228 | // Set up bgr555 color to be used across calls in inner driver |
| e223fa15 |
229 | gpu_unai.PixelData = GPU_RGB16(le32_to_u32(packet.U4[0])); |
| 0bfe8d59 |
230 | |
| 231 | PolyVertex vbuf[4]; |
| 232 | polyInitVertexBuffer(vbuf, packet, POLYTYPE_F, is_quad); |
| 233 | |
| 234 | int total_passes = is_quad ? 2 : 1; |
| 235 | int cur_pass = 0; |
| 236 | do |
| 237 | { |
| 238 | const PolyVertex* vptrs[3]; |
| 239 | if (polyUseTriangle(vbuf, cur_pass, vptrs) == false) |
| 240 | continue; |
| 241 | |
| 242 | s32 xa, xb, ya, yb; |
| 243 | s32 x3, dx3, x4, dx4, dx; |
| 244 | s32 x0, x1, x2, y0, y1, y2; |
| 245 | |
| 246 | x0 = vptrs[0]->x; y0 = vptrs[0]->y; |
| 247 | x1 = vptrs[1]->x; y1 = vptrs[1]->y; |
| 248 | x2 = vptrs[2]->x; y2 = vptrs[2]->y; |
| 249 | |
| 250 | ya = y2 - y0; |
| 251 | yb = y2 - y1; |
| 252 | dx = (x2 - x1) * ya - (x2 - x0) * yb; |
| 253 | |
| 254 | for (int loop0 = 2; loop0; loop0--) { |
| 255 | if (loop0 == 2) { |
| 256 | ya = y0; yb = y1; |
| 257 | x3 = x4 = i2x(x0); |
| 258 | if (dx < 0) { |
| 259 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 260 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 261 | dx3 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) * FloatInv(y2 - y0)) : 0; |
| 262 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) * FloatInv(y1 - y0)) : 0; |
| 263 | #else |
| 264 | dx3 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) / (float)(y2 - y0)) : 0; |
| 265 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) / (float)(y1 - y0)) : 0; |
| 266 | #endif |
| 267 | #else // Integer Division: |
| 268 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 269 | dx3 = ((y2 - y0) != 0) ? xLoDivx((x2 - x0), (y2 - y0)) : 0; |
| 270 | dx4 = ((y1 - y0) != 0) ? xLoDivx((x1 - x0), (y1 - y0)) : 0; |
| 271 | #else |
| 272 | dx3 = ((y2 - y0) != 0) ? GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)) : 0; |
| 273 | dx4 = ((y1 - y0) != 0) ? GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)) : 0; |
| 274 | #endif |
| 275 | #endif |
| 276 | } else { |
| 277 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 278 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 279 | dx3 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) * FloatInv(y1 - y0)) : 0; |
| 280 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) * FloatInv(y2 - y0)) : 0; |
| 281 | #else |
| 282 | dx3 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) / (float)(y1 - y0)) : 0; |
| 283 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) / (float)(y2 - y0)) : 0; |
| 284 | #endif |
| 285 | #else // Integer Division: |
| 286 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 287 | dx3 = ((y1 - y0) != 0) ? xLoDivx((x1 - x0), (y1 - y0)) : 0; |
| 288 | dx4 = ((y2 - y0) != 0) ? xLoDivx((x2 - x0), (y2 - y0)) : 0; |
| 289 | #else |
| 290 | dx3 = ((y1 - y0) != 0) ? GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)) : 0; |
| 291 | dx4 = ((y2 - y0) != 0) ? GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)) : 0; |
| 292 | #endif |
| 293 | #endif |
| 294 | } |
| 295 | } else { |
| 296 | //senquack - break out of final loop if nothing to be drawn (1st loop |
| 297 | // must always be taken to setup dx3/dx4) |
| 298 | if (y1 == y2) break; |
| 299 | |
| 300 | ya = y1; yb = y2; |
| 301 | |
| 302 | if (dx < 0) { |
| 303 | x3 = i2x(x0) + (dx3 * (y1 - y0)); |
| 304 | x4 = i2x(x1); |
| 305 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 306 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 307 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) * FloatInv(y2 - y1)) : 0; |
| 308 | #else |
| 309 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) / (float)(y2 - y1)) : 0; |
| 310 | #endif |
| 311 | #else // Integer Division: |
| 312 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 313 | dx4 = ((y2 - y1) != 0) ? xLoDivx ((x2 - x1), (y2 - y1)) : 0; |
| 314 | #else |
| 315 | dx4 = ((y2 - y1) != 0) ? GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)) : 0; |
| 316 | #endif |
| 317 | #endif |
| 318 | } else { |
| 319 | x3 = i2x(x1); |
| 320 | x4 = i2x(x0) + (dx4 * (y1 - y0)); |
| 321 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 322 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 323 | dx3 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) * FloatInv(y2 - y1)) : 0; |
| 324 | #else |
| 325 | dx3 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) / (float)(y2 - y1)) : 0; |
| 326 | #endif |
| 327 | #else // Integer Division: |
| 328 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 329 | dx3 = ((y2 - y1) != 0) ? xLoDivx ((x2 - x1), (y2 - y1)) : 0; |
| 330 | #else |
| 331 | dx3 = ((y2 - y1) != 0) ? GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)) : 0; |
| 332 | #endif |
| 333 | #endif |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | s32 xmin, xmax, ymin, ymax; |
| e223fa15 |
338 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
| 339 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
| 0bfe8d59 |
340 | |
| 341 | if ((ymin - ya) > 0) { |
| 342 | x3 += (dx3 * (ymin - ya)); |
| 343 | x4 += (dx4 * (ymin - ya)); |
| 344 | ya = ymin; |
| 345 | } |
| 346 | |
| 347 | if (yb > ymax) yb = ymax; |
| 348 | |
| 349 | int loop1 = yb - ya; |
| 350 | if (loop1 <= 0) |
| 351 | continue; |
| 352 | |
| e223fa15 |
353 | le16_t* PixelBase = &gpu_unai.vram[FRAME_OFFSET(0, ya)]; |
| 354 | int li=gpu_unai.ilace_mask; |
| 355 | int pi=(ProgressiveInterlaceEnabled()?(gpu_unai.ilace_mask+1):0); |
| 356 | int pif=(ProgressiveInterlaceEnabled()?(gpu_unai.prog_ilace_flag?(gpu_unai.ilace_mask+1):0):1); |
| 0bfe8d59 |
357 | |
| 358 | for (; loop1; --loop1, ya++, PixelBase += FRAME_WIDTH, |
| 359 | x3 += dx3, x4 += dx4 ) |
| 360 | { |
| 361 | if (ya&li) continue; |
| 362 | if ((ya&pi)==pif) continue; |
| 363 | |
| 364 | xa = FixedCeilToInt(x3); xb = FixedCeilToInt(x4); |
| 365 | if ((xmin - xa) > 0) xa = xmin; |
| 366 | if (xb > xmax) xb = xmax; |
| 367 | if ((xb - xa) > 0) |
| e223fa15 |
368 | gpuPolySpanDriver(gpu_unai, PixelBase + xa, (xb - xa)); |
| 0bfe8d59 |
369 | } |
| 370 | } |
| 371 | } while (++cur_pass < total_passes); |
| 372 | } |
| 373 | |
| 374 | /*---------------------------------------------------------------------- |
| 375 | gpuDrawPolyFT - Flat-shaded, textured poly |
| 376 | ----------------------------------------------------------------------*/ |
| 377 | void gpuDrawPolyFT(const PtrUnion packet, const PP gpuPolySpanDriver, u32 is_quad) |
| 378 | { |
| 379 | // r8/g8/b8 used if texture-blending & dithering is applied (24-bit light) |
| e223fa15 |
380 | gpu_unai.r8 = packet.U1[0]; |
| 381 | gpu_unai.g8 = packet.U1[1]; |
| 382 | gpu_unai.b8 = packet.U1[2]; |
| 0bfe8d59 |
383 | // r5/g5/b5 used if just texture-blending is applied (15-bit light) |
| e223fa15 |
384 | gpu_unai.r5 = packet.U1[0] >> 3; |
| 385 | gpu_unai.g5 = packet.U1[1] >> 3; |
| 386 | gpu_unai.b5 = packet.U1[2] >> 3; |
| 0bfe8d59 |
387 | |
| 388 | PolyVertex vbuf[4]; |
| 389 | polyInitVertexBuffer(vbuf, packet, POLYTYPE_FT, is_quad); |
| 390 | |
| 391 | int total_passes = is_quad ? 2 : 1; |
| 392 | int cur_pass = 0; |
| 393 | do |
| 394 | { |
| 395 | const PolyVertex* vptrs[3]; |
| 396 | if (polyUseTriangle(vbuf, cur_pass, vptrs) == false) |
| 397 | continue; |
| 398 | |
| 399 | s32 xa, xb, ya, yb; |
| 400 | s32 x3, dx3, x4, dx4, dx; |
| 401 | s32 u3, du3, v3, dv3; |
| 402 | s32 x0, x1, x2, y0, y1, y2; |
| 403 | s32 u0, u1, u2, v0, v1, v2; |
| 404 | s32 du4, dv4; |
| 405 | |
| 406 | x0 = vptrs[0]->x; y0 = vptrs[0]->y; |
| 407 | u0 = vptrs[0]->tex.u; v0 = vptrs[0]->tex.v; |
| 408 | x1 = vptrs[1]->x; y1 = vptrs[1]->y; |
| 409 | u1 = vptrs[1]->tex.u; v1 = vptrs[1]->tex.v; |
| 410 | x2 = vptrs[2]->x; y2 = vptrs[2]->y; |
| 411 | u2 = vptrs[2]->tex.u; v2 = vptrs[2]->tex.v; |
| 412 | |
| 413 | ya = y2 - y0; |
| 414 | yb = y2 - y1; |
| 415 | dx4 = (x2 - x1) * ya - (x2 - x0) * yb; |
| 416 | du4 = (u2 - u1) * ya - (u2 - u0) * yb; |
| 417 | dv4 = (v2 - v1) * ya - (v2 - v0) * yb; |
| 418 | dx = dx4; |
| 419 | if (dx4 < 0) { |
| 420 | dx4 = -dx4; |
| 421 | du4 = -du4; |
| 422 | dv4 = -dv4; |
| 423 | } |
| 424 | |
| 425 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 426 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 427 | if (dx4 != 0) { |
| 428 | float finv = FloatInv(dx4); |
| 429 | du4 = (fixed)((du4 << FIXED_BITS) * finv); |
| 430 | dv4 = (fixed)((dv4 << FIXED_BITS) * finv); |
| 431 | } else { |
| 432 | du4 = dv4 = 0; |
| 433 | } |
| 434 | #else |
| 435 | if (dx4 != 0) { |
| 436 | float fdiv = dx4; |
| 437 | du4 = (fixed)((du4 << FIXED_BITS) / fdiv); |
| 438 | dv4 = (fixed)((dv4 << FIXED_BITS) / fdiv); |
| 439 | } else { |
| 440 | du4 = dv4 = 0; |
| 441 | } |
| 442 | #endif |
| 443 | #else // Integer Division: |
| 444 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 445 | if (dx4 != 0) { |
| 446 | int iF, iS; |
| 447 | xInv(dx4, iF, iS); |
| 448 | du4 = xInvMulx(du4, iF, iS); |
| 449 | dv4 = xInvMulx(dv4, iF, iS); |
| 450 | } else { |
| 451 | du4 = dv4 = 0; |
| 452 | } |
| 453 | #else |
| 454 | if (dx4 != 0) { |
| 455 | du4 = GPU_FAST_DIV(du4 << FIXED_BITS, dx4); |
| 456 | dv4 = GPU_FAST_DIV(dv4 << FIXED_BITS, dx4); |
| 457 | } else { |
| 458 | du4 = dv4 = 0; |
| 459 | } |
| 460 | #endif |
| 461 | #endif |
| 462 | // Set u,v increments for inner driver |
| e223fa15 |
463 | gpu_unai.u_inc = du4; |
| 464 | gpu_unai.v_inc = dv4; |
| 0bfe8d59 |
465 | |
| 466 | //senquack - TODO: why is it always going through 2 iterations when sometimes one would suffice here? |
| 467 | // (SAME ISSUE ELSEWHERE) |
| 468 | for (s32 loop0 = 2; loop0; loop0--) { |
| 469 | if (loop0 == 2) { |
| 470 | ya = y0; yb = y1; |
| 471 | x3 = x4 = i2x(x0); |
| 472 | u3 = i2x(u0); v3 = i2x(v0); |
| 473 | if (dx < 0) { |
| 474 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 475 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 476 | if ((y2 - y0) != 0) { |
| 477 | float finv = FloatInv(y2 - y0); |
| 478 | dx3 = (fixed)(((x2 - x0) << FIXED_BITS) * finv); |
| 479 | du3 = (fixed)(((u2 - u0) << FIXED_BITS) * finv); |
| 480 | dv3 = (fixed)(((v2 - v0) << FIXED_BITS) * finv); |
| 481 | } else { |
| 482 | dx3 = du3 = dv3 = 0; |
| 483 | } |
| 484 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) * FloatInv(y1 - y0)) : 0; |
| 485 | #else |
| 486 | if ((y2 - y0) != 0) { |
| 487 | float fdiv = y2 - y0; |
| 488 | dx3 = (fixed)(((x2 - x0) << FIXED_BITS) / fdiv); |
| 489 | du3 = (fixed)(((u2 - u0) << FIXED_BITS) / fdiv); |
| 490 | dv3 = (fixed)(((v2 - v0) << FIXED_BITS) / fdiv); |
| 491 | } else { |
| 492 | dx3 = du3 = dv3 = 0; |
| 493 | } |
| 494 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) / (float)(y1 - y0)) : 0; |
| 495 | #endif |
| 496 | #else // Integer Division: |
| 497 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 498 | if ((y2 - y0) != 0) { |
| 499 | int iF, iS; |
| 500 | xInv((y2 - y0), iF, iS); |
| 501 | dx3 = xInvMulx((x2 - x0), iF, iS); |
| 502 | du3 = xInvMulx((u2 - u0), iF, iS); |
| 503 | dv3 = xInvMulx((v2 - v0), iF, iS); |
| 504 | } else { |
| 505 | dx3 = du3 = dv3 = 0; |
| 506 | } |
| 507 | dx4 = ((y1 - y0) != 0) ? xLoDivx((x1 - x0), (y1 - y0)) : 0; |
| 508 | #else |
| 509 | if ((y2 - y0) != 0) { |
| 510 | dx3 = GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)); |
| 511 | du3 = GPU_FAST_DIV((u2 - u0) << FIXED_BITS, (y2 - y0)); |
| 512 | dv3 = GPU_FAST_DIV((v2 - v0) << FIXED_BITS, (y2 - y0)); |
| 513 | } else { |
| 514 | dx3 = du3 = dv3 = 0; |
| 515 | } |
| 516 | dx4 = ((y1 - y0) != 0) ? GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)) : 0; |
| 517 | #endif |
| 518 | #endif |
| 519 | } else { |
| 520 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 521 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 522 | if ((y1 - y0) != 0) { |
| 523 | float finv = FloatInv(y1 - y0); |
| 524 | dx3 = (fixed)(((x1 - x0) << FIXED_BITS) * finv); |
| 525 | du3 = (fixed)(((u1 - u0) << FIXED_BITS) * finv); |
| 526 | dv3 = (fixed)(((v1 - v0) << FIXED_BITS) * finv); |
| 527 | } else { |
| 528 | dx3 = du3 = dv3 = 0; |
| 529 | } |
| 530 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) * FloatInv(y2 - y0)) : 0; |
| 531 | #else |
| 532 | if ((y1 - y0) != 0) { |
| 533 | float fdiv = y1 - y0; |
| 534 | dx3 = (fixed)(((x1 - x0) << FIXED_BITS) / fdiv); |
| 535 | du3 = (fixed)(((u1 - u0) << FIXED_BITS) / fdiv); |
| 536 | dv3 = (fixed)(((v1 - v0) << FIXED_BITS) / fdiv); |
| 537 | } else { |
| 538 | dx3 = du3 = dv3 = 0; |
| 539 | } |
| 540 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) / (float)(y2 - y0)) : 0; |
| 541 | #endif |
| 542 | #else // Integer Division: |
| 543 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 544 | if ((y1 - y0) != 0) { |
| 545 | int iF, iS; |
| 546 | xInv((y1 - y0), iF, iS); |
| 547 | dx3 = xInvMulx((x1 - x0), iF, iS); |
| 548 | du3 = xInvMulx((u1 - u0), iF, iS); |
| 549 | dv3 = xInvMulx((v1 - v0), iF, iS); |
| 550 | } else { |
| 551 | dx3 = du3 = dv3 = 0; |
| 552 | } |
| 553 | dx4 = ((y2 - y0) != 0) ? xLoDivx((x2 - x0), (y2 - y0)) : 0; |
| 554 | #else |
| 555 | if ((y1 - y0) != 0) { |
| 556 | dx3 = GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)); |
| 557 | du3 = GPU_FAST_DIV((u1 - u0) << FIXED_BITS, (y1 - y0)); |
| 558 | dv3 = GPU_FAST_DIV((v1 - v0) << FIXED_BITS, (y1 - y0)); |
| 559 | } else { |
| 560 | dx3 = du3 = dv3 = 0; |
| 561 | } |
| 562 | dx4 = ((y2 - y0) != 0) ? GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)) : 0; |
| 563 | #endif |
| 564 | #endif |
| 565 | } |
| 566 | } else { |
| 567 | //senquack - break out of final loop if nothing to be drawn (1st loop |
| 568 | // must always be taken to setup dx3/dx4) |
| 569 | if (y1 == y2) break; |
| 570 | |
| 571 | ya = y1; yb = y2; |
| 572 | |
| 573 | if (dx < 0) { |
| 574 | x3 = i2x(x0); |
| 575 | x4 = i2x(x1); |
| 576 | u3 = i2x(u0); |
| 577 | v3 = i2x(v0); |
| 578 | if ((y1 - y0) != 0) { |
| 579 | x3 += (dx3 * (y1 - y0)); |
| 580 | u3 += (du3 * (y1 - y0)); |
| 581 | v3 += (dv3 * (y1 - y0)); |
| 582 | } |
| 583 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 584 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 585 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) * FloatInv(y2 - y1)) : 0; |
| 586 | #else |
| 587 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) / (float)(y2 - y1)) : 0; |
| 588 | #endif |
| 589 | #else // Integer Division: |
| 590 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 591 | dx4 = ((y2 - y1) != 0) ? xLoDivx((x2 - x1), (y2 - y1)) : 0; |
| 592 | #else |
| 593 | dx4 = ((y2 - y1) != 0) ? GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)) : 0; |
| 594 | #endif |
| 595 | #endif |
| 596 | } else { |
| 597 | x3 = i2x(x1); |
| 598 | x4 = i2x(x0) + (dx4 * (y1 - y0)); |
| 599 | u3 = i2x(u1); |
| 600 | v3 = i2x(v1); |
| 601 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 602 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 603 | if ((y2 - y1) != 0) { |
| 604 | float finv = FloatInv(y2 - y1); |
| 605 | dx3 = (fixed)(((x2 - x1) << FIXED_BITS) * finv); |
| 606 | du3 = (fixed)(((u2 - u1) << FIXED_BITS) * finv); |
| 607 | dv3 = (fixed)(((v2 - v1) << FIXED_BITS) * finv); |
| 608 | } else { |
| 609 | dx3 = du3 = dv3 = 0; |
| 610 | } |
| 611 | #else |
| 612 | if ((y2 - y1) != 0) { |
| 613 | float fdiv = y2 - y1; |
| 614 | dx3 = (fixed)(((x2 - x1) << FIXED_BITS) / fdiv); |
| 615 | du3 = (fixed)(((u2 - u1) << FIXED_BITS) / fdiv); |
| 616 | dv3 = (fixed)(((v2 - v1) << FIXED_BITS) / fdiv); |
| 617 | } else { |
| 618 | dx3 = du3 = dv3 = 0; |
| 619 | } |
| 620 | #endif |
| 621 | #else // Integer Division: |
| 622 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 623 | if ((y2 - y1) != 0) { |
| 624 | int iF, iS; |
| 625 | xInv((y2 - y1), iF, iS); |
| 626 | dx3 = xInvMulx((x2 - x1), iF, iS); |
| 627 | du3 = xInvMulx((u2 - u1), iF, iS); |
| 628 | dv3 = xInvMulx((v2 - v1), iF, iS); |
| 629 | } else { |
| 630 | dx3 = du3 = dv3 = 0; |
| 631 | } |
| 632 | #else |
| 633 | if ((y2 - y1) != 0) { |
| 634 | dx3 = GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)); |
| 635 | du3 = GPU_FAST_DIV((u2 - u1) << FIXED_BITS, (y2 - y1)); |
| 636 | dv3 = GPU_FAST_DIV((v2 - v1) << FIXED_BITS, (y2 - y1)); |
| 637 | } else { |
| 638 | dx3 = du3 = dv3 = 0; |
| 639 | } |
| 640 | #endif |
| 641 | #endif |
| 642 | } |
| 643 | } |
| 644 | |
| 645 | s32 xmin, xmax, ymin, ymax; |
| e223fa15 |
646 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
| 647 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
| 0bfe8d59 |
648 | |
| 649 | if ((ymin - ya) > 0) { |
| 650 | x3 += dx3 * (ymin - ya); |
| 651 | x4 += dx4 * (ymin - ya); |
| 652 | u3 += du3 * (ymin - ya); |
| 653 | v3 += dv3 * (ymin - ya); |
| 654 | ya = ymin; |
| 655 | } |
| 656 | |
| 657 | if (yb > ymax) yb = ymax; |
| 658 | |
| 659 | int loop1 = yb - ya; |
| 660 | if (loop1 <= 0) |
| 661 | continue; |
| 662 | |
| e223fa15 |
663 | le16_t* PixelBase = &gpu_unai.vram[FRAME_OFFSET(0, ya)]; |
| 664 | int li=gpu_unai.ilace_mask; |
| 665 | int pi=(ProgressiveInterlaceEnabled()?(gpu_unai.ilace_mask+1):0); |
| 666 | int pif=(ProgressiveInterlaceEnabled()?(gpu_unai.prog_ilace_flag?(gpu_unai.ilace_mask+1):0):1); |
| 0bfe8d59 |
667 | |
| 668 | for (; loop1; --loop1, ++ya, PixelBase += FRAME_WIDTH, |
| 669 | x3 += dx3, x4 += dx4, |
| 670 | u3 += du3, v3 += dv3 ) |
| 671 | { |
| 672 | if (ya&li) continue; |
| 673 | if ((ya&pi)==pif) continue; |
| 674 | |
| 675 | u32 u4, v4; |
| 676 | |
| 677 | xa = FixedCeilToInt(x3); xb = FixedCeilToInt(x4); |
| 678 | u4 = u3; v4 = v3; |
| 679 | |
| 680 | fixed itmp = i2x(xa) - x3; |
| 681 | if (itmp != 0) { |
| 682 | u4 += (du4 * itmp) >> FIXED_BITS; |
| 683 | v4 += (dv4 * itmp) >> FIXED_BITS; |
| 684 | } |
| 685 | |
| 686 | u4 += fixed_HALF; |
| 687 | v4 += fixed_HALF; |
| 688 | |
| 689 | if ((xmin - xa) > 0) { |
| 690 | u4 += du4 * (xmin - xa); |
| 691 | v4 += dv4 * (xmin - xa); |
| 692 | xa = xmin; |
| 693 | } |
| 694 | |
| 695 | // Set u,v coords for inner driver |
| e223fa15 |
696 | gpu_unai.u = u4; |
| 697 | gpu_unai.v = v4; |
| 0bfe8d59 |
698 | |
| 699 | if (xb > xmax) xb = xmax; |
| 700 | if ((xb - xa) > 0) |
| e223fa15 |
701 | gpuPolySpanDriver(gpu_unai, PixelBase + xa, (xb - xa)); |
| 0bfe8d59 |
702 | } |
| 703 | } |
| 704 | } while (++cur_pass < total_passes); |
| 705 | } |
| 706 | |
| 707 | /*---------------------------------------------------------------------- |
| 708 | gpuDrawPolyG - Gouraud-shaded, untextured poly |
| 709 | ----------------------------------------------------------------------*/ |
| 710 | void gpuDrawPolyG(const PtrUnion packet, const PP gpuPolySpanDriver, u32 is_quad) |
| 711 | { |
| 712 | PolyVertex vbuf[4]; |
| 713 | polyInitVertexBuffer(vbuf, packet, POLYTYPE_G, is_quad); |
| 714 | |
| 715 | int total_passes = is_quad ? 2 : 1; |
| 716 | int cur_pass = 0; |
| 717 | do |
| 718 | { |
| 719 | const PolyVertex* vptrs[3]; |
| 720 | if (polyUseTriangle(vbuf, cur_pass, vptrs) == false) |
| 721 | continue; |
| 722 | |
| 723 | s32 xa, xb, ya, yb; |
| 724 | s32 x3, dx3, x4, dx4, dx; |
| 725 | s32 r3, dr3, g3, dg3, b3, db3; |
| 726 | s32 x0, x1, x2, y0, y1, y2; |
| 727 | s32 r0, r1, r2, g0, g1, g2, b0, b1, b2; |
| 728 | s32 dr4, dg4, db4; |
| 729 | |
| 730 | x0 = vptrs[0]->x; y0 = vptrs[0]->y; |
| 731 | r0 = vptrs[0]->col.r; g0 = vptrs[0]->col.g; b0 = vptrs[0]->col.b; |
| 732 | x1 = vptrs[1]->x; y1 = vptrs[1]->y; |
| 733 | r1 = vptrs[1]->col.r; g1 = vptrs[1]->col.g; b1 = vptrs[1]->col.b; |
| 734 | x2 = vptrs[2]->x; y2 = vptrs[2]->y; |
| 735 | r2 = vptrs[2]->col.r; g2 = vptrs[2]->col.g; b2 = vptrs[2]->col.b; |
| 736 | |
| 737 | ya = y2 - y0; |
| 738 | yb = y2 - y1; |
| 739 | dx4 = (x2 - x1) * ya - (x2 - x0) * yb; |
| 740 | dr4 = (r2 - r1) * ya - (r2 - r0) * yb; |
| 741 | dg4 = (g2 - g1) * ya - (g2 - g0) * yb; |
| 742 | db4 = (b2 - b1) * ya - (b2 - b0) * yb; |
| 743 | dx = dx4; |
| 744 | if (dx4 < 0) { |
| 745 | dx4 = -dx4; |
| 746 | dr4 = -dr4; |
| 747 | dg4 = -dg4; |
| 748 | db4 = -db4; |
| 749 | } |
| 750 | |
| 751 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 752 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 753 | if (dx4 != 0) { |
| 754 | float finv = FloatInv(dx4); |
| 755 | dr4 = (fixed)((dr4 << FIXED_BITS) * finv); |
| 756 | dg4 = (fixed)((dg4 << FIXED_BITS) * finv); |
| 757 | db4 = (fixed)((db4 << FIXED_BITS) * finv); |
| 758 | } else { |
| 759 | dr4 = dg4 = db4 = 0; |
| 760 | } |
| 761 | #else |
| 762 | if (dx4 != 0) { |
| 763 | float fdiv = dx4; |
| 764 | dr4 = (fixed)((dr4 << FIXED_BITS) / fdiv); |
| 765 | dg4 = (fixed)((dg4 << FIXED_BITS) / fdiv); |
| 766 | db4 = (fixed)((db4 << FIXED_BITS) / fdiv); |
| 767 | } else { |
| 768 | dr4 = dg4 = db4 = 0; |
| 769 | } |
| 770 | #endif |
| 771 | #else // Integer Division: |
| 772 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 773 | if (dx4 != 0) { |
| 774 | int iF, iS; |
| 775 | xInv(dx4, iF, iS); |
| 776 | dr4 = xInvMulx(dr4, iF, iS); |
| 777 | dg4 = xInvMulx(dg4, iF, iS); |
| 778 | db4 = xInvMulx(db4, iF, iS); |
| 779 | } else { |
| 780 | dr4 = dg4 = db4 = 0; |
| 781 | } |
| 782 | #else |
| 783 | if (dx4 != 0) { |
| 784 | dr4 = GPU_FAST_DIV(dr4 << FIXED_BITS, dx4); |
| 785 | dg4 = GPU_FAST_DIV(dg4 << FIXED_BITS, dx4); |
| 786 | db4 = GPU_FAST_DIV(db4 << FIXED_BITS, dx4); |
| 787 | } else { |
| 788 | dr4 = dg4 = db4 = 0; |
| 789 | } |
| 790 | #endif |
| 791 | #endif |
| 792 | // Setup packed Gouraud increment for inner driver |
| e223fa15 |
793 | gpu_unai.gInc = gpuPackGouraudColInc(dr4, dg4, db4); |
| 0bfe8d59 |
794 | |
| 795 | for (s32 loop0 = 2; loop0; loop0--) { |
| 796 | if (loop0 == 2) { |
| 797 | ya = y0; |
| 798 | yb = y1; |
| 799 | x3 = x4 = i2x(x0); |
| 800 | r3 = i2x(r0); |
| 801 | g3 = i2x(g0); |
| 802 | b3 = i2x(b0); |
| 803 | if (dx < 0) { |
| 804 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 805 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 806 | if ((y2 - y0) != 0) { |
| 807 | float finv = FloatInv(y2 - y0); |
| 808 | dx3 = (fixed)(((x2 - x0) << FIXED_BITS) * finv); |
| 809 | dr3 = (fixed)(((r2 - r0) << FIXED_BITS) * finv); |
| 810 | dg3 = (fixed)(((g2 - g0) << FIXED_BITS) * finv); |
| 811 | db3 = (fixed)(((b2 - b0) << FIXED_BITS) * finv); |
| 812 | } else { |
| 813 | dx3 = dr3 = dg3 = db3 = 0; |
| 814 | } |
| 815 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) * FloatInv(y1 - y0)) : 0; |
| 816 | #else |
| 817 | if ((y2 - y0) != 0) { |
| 818 | float fdiv = y2 - y0; |
| 819 | dx3 = (fixed)(((x2 - x0) << FIXED_BITS) / fdiv); |
| 820 | dr3 = (fixed)(((r2 - r0) << FIXED_BITS) / fdiv); |
| 821 | dg3 = (fixed)(((g2 - g0) << FIXED_BITS) / fdiv); |
| 822 | db3 = (fixed)(((b2 - b0) << FIXED_BITS) / fdiv); |
| 823 | } else { |
| 824 | dx3 = dr3 = dg3 = db3 = 0; |
| 825 | } |
| 826 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) / (float)(y1 - y0)) : 0; |
| 827 | #endif |
| 828 | #else // Integer Division: |
| 829 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 830 | if ((y2 - y0) != 0) { |
| 831 | int iF, iS; |
| 832 | xInv((y2 - y0), iF, iS); |
| 833 | dx3 = xInvMulx((x2 - x0), iF, iS); |
| 834 | dr3 = xInvMulx((r2 - r0), iF, iS); |
| 835 | dg3 = xInvMulx((g2 - g0), iF, iS); |
| 836 | db3 = xInvMulx((b2 - b0), iF, iS); |
| 837 | } else { |
| 838 | dx3 = dr3 = dg3 = db3 = 0; |
| 839 | } |
| 840 | dx4 = ((y1 - y0) != 0) ? xLoDivx((x1 - x0), (y1 - y0)) : 0; |
| 841 | #else |
| 842 | if ((y2 - y0) != 0) { |
| 843 | dx3 = GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)); |
| 844 | dr3 = GPU_FAST_DIV((r2 - r0) << FIXED_BITS, (y2 - y0)); |
| 845 | dg3 = GPU_FAST_DIV((g2 - g0) << FIXED_BITS, (y2 - y0)); |
| 846 | db3 = GPU_FAST_DIV((b2 - b0) << FIXED_BITS, (y2 - y0)); |
| 847 | } else { |
| 848 | dx3 = dr3 = dg3 = db3 = 0; |
| 849 | } |
| 850 | dx4 = ((y1 - y0) != 0) ? GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)) : 0; |
| 851 | #endif |
| 852 | #endif |
| 853 | } else { |
| 854 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 855 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 856 | if ((y1 - y0) != 0) { |
| 857 | float finv = FloatInv(y1 - y0); |
| 858 | dx3 = (fixed)(((x1 - x0) << FIXED_BITS) * finv); |
| 859 | dr3 = (fixed)(((r1 - r0) << FIXED_BITS) * finv); |
| 860 | dg3 = (fixed)(((g1 - g0) << FIXED_BITS) * finv); |
| 861 | db3 = (fixed)(((b1 - b0) << FIXED_BITS) * finv); |
| 862 | } else { |
| 863 | dx3 = dr3 = dg3 = db3 = 0; |
| 864 | } |
| 865 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) * FloatInv(y2 - y0)) : 0; |
| 866 | #else |
| 867 | if ((y1 - y0) != 0) { |
| 868 | float fdiv = y1 - y0; |
| 869 | dx3 = (fixed)(((x1 - x0) << FIXED_BITS) / fdiv); |
| 870 | dr3 = (fixed)(((r1 - r0) << FIXED_BITS) / fdiv); |
| 871 | dg3 = (fixed)(((g1 - g0) << FIXED_BITS) / fdiv); |
| 872 | db3 = (fixed)(((b1 - b0) << FIXED_BITS) / fdiv); |
| 873 | } else { |
| 874 | dx3 = dr3 = dg3 = db3 = 0; |
| 875 | } |
| 876 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) / (float)(y2 - y0)) : 0; |
| 877 | #endif |
| 878 | #else // Integer Division: |
| 879 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 880 | if ((y1 - y0) != 0) { |
| 881 | int iF, iS; |
| 882 | xInv((y1 - y0), iF, iS); |
| 883 | dx3 = xInvMulx((x1 - x0), iF, iS); |
| 884 | dr3 = xInvMulx((r1 - r0), iF, iS); |
| 885 | dg3 = xInvMulx((g1 - g0), iF, iS); |
| 886 | db3 = xInvMulx((b1 - b0), iF, iS); |
| 887 | } else { |
| 888 | dx3 = dr3 = dg3 = db3 = 0; |
| 889 | } |
| 890 | dx4 = ((y2 - y0) != 0) ? xLoDivx((x2 - x0), (y2 - y0)) : 0; |
| 891 | #else |
| 892 | if ((y1 - y0) != 0) { |
| 893 | dx3 = GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)); |
| 894 | dr3 = GPU_FAST_DIV((r1 - r0) << FIXED_BITS, (y1 - y0)); |
| 895 | dg3 = GPU_FAST_DIV((g1 - g0) << FIXED_BITS, (y1 - y0)); |
| 896 | db3 = GPU_FAST_DIV((b1 - b0) << FIXED_BITS, (y1 - y0)); |
| 897 | } else { |
| 898 | dx3 = dr3 = dg3 = db3 = 0; |
| 899 | } |
| 900 | dx4 = ((y2 - y0) != 0) ? GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)) : 0; |
| 901 | #endif |
| 902 | #endif |
| 903 | } |
| 904 | } else { |
| 905 | //senquack - break out of final loop if nothing to be drawn (1st loop |
| 906 | // must always be taken to setup dx3/dx4) |
| 907 | if (y1 == y2) break; |
| 908 | |
| 909 | ya = y1; yb = y2; |
| 910 | |
| 911 | if (dx < 0) { |
| 912 | x3 = i2x(x0); x4 = i2x(x1); |
| 913 | r3 = i2x(r0); g3 = i2x(g0); b3 = i2x(b0); |
| 914 | |
| 915 | if ((y1 - y0) != 0) { |
| 916 | x3 += (dx3 * (y1 - y0)); |
| 917 | r3 += (dr3 * (y1 - y0)); |
| 918 | g3 += (dg3 * (y1 - y0)); |
| 919 | b3 += (db3 * (y1 - y0)); |
| 920 | } |
| 921 | |
| 922 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 923 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 924 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) * FloatInv(y2 - y1)) : 0; |
| 925 | #else |
| 926 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) / (float)(y2 - y1)) : 0; |
| 927 | #endif |
| 928 | #else // Integer Division: |
| 929 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 930 | dx4 = ((y2 - y1) != 0) ? xLoDivx((x2 - x1), (y2 - y1)) : 0; |
| 931 | #else |
| 932 | dx4 = ((y2 - y1) != 0) ? GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)) : 0; |
| 933 | #endif |
| 934 | #endif |
| 935 | } else { |
| 936 | x3 = i2x(x1); |
| 937 | x4 = i2x(x0) + (dx4 * (y1 - y0)); |
| 938 | |
| 939 | r3 = i2x(r1); g3 = i2x(g1); b3 = i2x(b1); |
| 940 | |
| 941 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 942 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 943 | if ((y2 - y1) != 0) { |
| 944 | float finv = FloatInv(y2 - y1); |
| 945 | dx3 = (fixed)(((x2 - x1) << FIXED_BITS) * finv); |
| 946 | dr3 = (fixed)(((r2 - r1) << FIXED_BITS) * finv); |
| 947 | dg3 = (fixed)(((g2 - g1) << FIXED_BITS) * finv); |
| 948 | db3 = (fixed)(((b2 - b1) << FIXED_BITS) * finv); |
| 949 | } else { |
| 950 | dx3 = dr3 = dg3 = db3 = 0; |
| 951 | } |
| 952 | #else |
| 953 | if ((y2 - y1) != 0) { |
| 954 | float fdiv = y2 - y1; |
| 955 | dx3 = (fixed)(((x2 - x1) << FIXED_BITS) / fdiv); |
| 956 | dr3 = (fixed)(((r2 - r1) << FIXED_BITS) / fdiv); |
| 957 | dg3 = (fixed)(((g2 - g1) << FIXED_BITS) / fdiv); |
| 958 | db3 = (fixed)(((b2 - b1) << FIXED_BITS) / fdiv); |
| 959 | } else { |
| 960 | dx3 = dr3 = dg3 = db3 = 0; |
| 961 | } |
| 962 | #endif |
| 963 | #else // Integer Division: |
| 964 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 965 | if ((y2 - y1) != 0) { |
| 966 | int iF, iS; |
| 967 | xInv((y2 - y1), iF, iS); |
| 968 | dx3 = xInvMulx((x2 - x1), iF, iS); |
| 969 | dr3 = xInvMulx((r2 - r1), iF, iS); |
| 970 | dg3 = xInvMulx((g2 - g1), iF, iS); |
| 971 | db3 = xInvMulx((b2 - b1), iF, iS); |
| 972 | } else { |
| 973 | dx3 = dr3 = dg3 = db3 = 0; |
| 974 | } |
| 975 | #else |
| 976 | if ((y2 - y1) != 0) { |
| 977 | dx3 = GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)); |
| 978 | dr3 = GPU_FAST_DIV((r2 - r1) << FIXED_BITS, (y2 - y1)); |
| 979 | dg3 = GPU_FAST_DIV((g2 - g1) << FIXED_BITS, (y2 - y1)); |
| 980 | db3 = GPU_FAST_DIV((b2 - b1) << FIXED_BITS, (y2 - y1)); |
| 981 | } else { |
| 982 | dx3 = dr3 = dg3 = db3 = 0; |
| 983 | } |
| 984 | #endif |
| 985 | #endif |
| 986 | } |
| 987 | } |
| 988 | |
| 989 | s32 xmin, xmax, ymin, ymax; |
| e223fa15 |
990 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
| 991 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
| 0bfe8d59 |
992 | |
| 993 | if ((ymin - ya) > 0) { |
| 994 | x3 += (dx3 * (ymin - ya)); |
| 995 | x4 += (dx4 * (ymin - ya)); |
| 996 | r3 += (dr3 * (ymin - ya)); |
| 997 | g3 += (dg3 * (ymin - ya)); |
| 998 | b3 += (db3 * (ymin - ya)); |
| 999 | ya = ymin; |
| 1000 | } |
| 1001 | |
| 1002 | if (yb > ymax) yb = ymax; |
| 1003 | |
| 1004 | int loop1 = yb - ya; |
| 1005 | if (loop1 <= 0) |
| 1006 | continue; |
| 1007 | |
| e223fa15 |
1008 | le16_t* PixelBase = &gpu_unai.vram[FRAME_OFFSET(0, ya)]; |
| 1009 | int li=gpu_unai.ilace_mask; |
| 1010 | int pi=(ProgressiveInterlaceEnabled()?(gpu_unai.ilace_mask+1):0); |
| 1011 | int pif=(ProgressiveInterlaceEnabled()?(gpu_unai.prog_ilace_flag?(gpu_unai.ilace_mask+1):0):1); |
| 0bfe8d59 |
1012 | |
| 1013 | for (; loop1; --loop1, ++ya, PixelBase += FRAME_WIDTH, |
| 1014 | x3 += dx3, x4 += dx4, |
| 1015 | r3 += dr3, g3 += dg3, b3 += db3 ) |
| 1016 | { |
| 1017 | if (ya&li) continue; |
| 1018 | if ((ya&pi)==pif) continue; |
| 1019 | |
| 1020 | u32 r4, g4, b4; |
| 1021 | |
| 1022 | xa = FixedCeilToInt(x3); |
| 1023 | xb = FixedCeilToInt(x4); |
| 1024 | r4 = r3; g4 = g3; b4 = b3; |
| 1025 | |
| 1026 | fixed itmp = i2x(xa) - x3; |
| 1027 | if (itmp != 0) { |
| 1028 | r4 += (dr4 * itmp) >> FIXED_BITS; |
| 1029 | g4 += (dg4 * itmp) >> FIXED_BITS; |
| 1030 | b4 += (db4 * itmp) >> FIXED_BITS; |
| 1031 | } |
| 1032 | |
| 1033 | r4 += fixed_HALF; |
| 1034 | g4 += fixed_HALF; |
| 1035 | b4 += fixed_HALF; |
| 1036 | |
| 1037 | if ((xmin - xa) > 0) { |
| 1038 | r4 += (dr4 * (xmin - xa)); |
| 1039 | g4 += (dg4 * (xmin - xa)); |
| 1040 | b4 += (db4 * (xmin - xa)); |
| 1041 | xa = xmin; |
| 1042 | } |
| 1043 | |
| 1044 | // Setup packed Gouraud color for inner driver |
| e223fa15 |
1045 | gpu_unai.gCol = gpuPackGouraudCol(r4, g4, b4); |
| 0bfe8d59 |
1046 | |
| 1047 | if (xb > xmax) xb = xmax; |
| 1048 | if ((xb - xa) > 0) |
| e223fa15 |
1049 | gpuPolySpanDriver(gpu_unai, PixelBase + xa, (xb - xa)); |
| 0bfe8d59 |
1050 | } |
| 1051 | } |
| 1052 | } while (++cur_pass < total_passes); |
| 1053 | } |
| 1054 | |
| 1055 | /*---------------------------------------------------------------------- |
| 1056 | gpuDrawPolyGT - Gouraud-shaded, textured poly |
| 1057 | ----------------------------------------------------------------------*/ |
| 1058 | void gpuDrawPolyGT(const PtrUnion packet, const PP gpuPolySpanDriver, u32 is_quad) |
| 1059 | { |
| 1060 | PolyVertex vbuf[4]; |
| 1061 | polyInitVertexBuffer(vbuf, packet, POLYTYPE_GT, is_quad); |
| 1062 | |
| 1063 | int total_passes = is_quad ? 2 : 1; |
| 1064 | int cur_pass = 0; |
| 1065 | do |
| 1066 | { |
| 1067 | const PolyVertex* vptrs[3]; |
| 1068 | if (polyUseTriangle(vbuf, cur_pass, vptrs) == false) |
| 1069 | continue; |
| 1070 | |
| 1071 | s32 xa, xb, ya, yb; |
| 1072 | s32 x3, dx3, x4, dx4, dx; |
| 1073 | s32 u3, du3, v3, dv3; |
| 1074 | s32 r3, dr3, g3, dg3, b3, db3; |
| 1075 | s32 x0, x1, x2, y0, y1, y2; |
| 1076 | s32 u0, u1, u2, v0, v1, v2; |
| 1077 | s32 r0, r1, r2, g0, g1, g2, b0, b1, b2; |
| 1078 | s32 du4, dv4; |
| 1079 | s32 dr4, dg4, db4; |
| 1080 | |
| 1081 | x0 = vptrs[0]->x; y0 = vptrs[0]->y; |
| 1082 | u0 = vptrs[0]->tex.u; v0 = vptrs[0]->tex.v; |
| 1083 | r0 = vptrs[0]->col.r; g0 = vptrs[0]->col.g; b0 = vptrs[0]->col.b; |
| 1084 | x1 = vptrs[1]->x; y1 = vptrs[1]->y; |
| 1085 | u1 = vptrs[1]->tex.u; v1 = vptrs[1]->tex.v; |
| 1086 | r1 = vptrs[1]->col.r; g1 = vptrs[1]->col.g; b1 = vptrs[1]->col.b; |
| 1087 | x2 = vptrs[2]->x; y2 = vptrs[2]->y; |
| 1088 | u2 = vptrs[2]->tex.u; v2 = vptrs[2]->tex.v; |
| 1089 | r2 = vptrs[2]->col.r; g2 = vptrs[2]->col.g; b2 = vptrs[2]->col.b; |
| 1090 | |
| 1091 | ya = y2 - y0; |
| 1092 | yb = y2 - y1; |
| 1093 | dx4 = (x2 - x1) * ya - (x2 - x0) * yb; |
| 1094 | du4 = (u2 - u1) * ya - (u2 - u0) * yb; |
| 1095 | dv4 = (v2 - v1) * ya - (v2 - v0) * yb; |
| 1096 | dr4 = (r2 - r1) * ya - (r2 - r0) * yb; |
| 1097 | dg4 = (g2 - g1) * ya - (g2 - g0) * yb; |
| 1098 | db4 = (b2 - b1) * ya - (b2 - b0) * yb; |
| 1099 | dx = dx4; |
| 1100 | if (dx4 < 0) { |
| 1101 | dx4 = -dx4; |
| 1102 | du4 = -du4; |
| 1103 | dv4 = -dv4; |
| 1104 | dr4 = -dr4; |
| 1105 | dg4 = -dg4; |
| 1106 | db4 = -db4; |
| 1107 | } |
| 1108 | |
| 1109 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 1110 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 1111 | if (dx4 != 0) { |
| 1112 | float finv = FloatInv(dx4); |
| 1113 | du4 = (fixed)((du4 << FIXED_BITS) * finv); |
| 1114 | dv4 = (fixed)((dv4 << FIXED_BITS) * finv); |
| 1115 | dr4 = (fixed)((dr4 << FIXED_BITS) * finv); |
| 1116 | dg4 = (fixed)((dg4 << FIXED_BITS) * finv); |
| 1117 | db4 = (fixed)((db4 << FIXED_BITS) * finv); |
| 1118 | } else { |
| 1119 | du4 = dv4 = dr4 = dg4 = db4 = 0; |
| 1120 | } |
| 1121 | #else |
| 1122 | if (dx4 != 0) { |
| 1123 | float fdiv = dx4; |
| 1124 | du4 = (fixed)((du4 << FIXED_BITS) / fdiv); |
| 1125 | dv4 = (fixed)((dv4 << FIXED_BITS) / fdiv); |
| 1126 | dr4 = (fixed)((dr4 << FIXED_BITS) / fdiv); |
| 1127 | dg4 = (fixed)((dg4 << FIXED_BITS) / fdiv); |
| 1128 | db4 = (fixed)((db4 << FIXED_BITS) / fdiv); |
| 1129 | } else { |
| 1130 | du4 = dv4 = dr4 = dg4 = db4 = 0; |
| 1131 | } |
| 1132 | #endif |
| 1133 | #else // Integer Division: |
| 1134 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 1135 | if (dx4 != 0) { |
| 1136 | int iF, iS; |
| 1137 | xInv(dx4, iF, iS); |
| 1138 | du4 = xInvMulx(du4, iF, iS); |
| 1139 | dv4 = xInvMulx(dv4, iF, iS); |
| 1140 | dr4 = xInvMulx(dr4, iF, iS); |
| 1141 | dg4 = xInvMulx(dg4, iF, iS); |
| 1142 | db4 = xInvMulx(db4, iF, iS); |
| 1143 | } else { |
| 1144 | du4 = dv4 = dr4 = dg4 = db4 = 0; |
| 1145 | } |
| 1146 | #else |
| 1147 | if (dx4 != 0) { |
| 1148 | du4 = GPU_FAST_DIV(du4 << FIXED_BITS, dx4); |
| 1149 | dv4 = GPU_FAST_DIV(dv4 << FIXED_BITS, dx4); |
| 1150 | dr4 = GPU_FAST_DIV(dr4 << FIXED_BITS, dx4); |
| 1151 | dg4 = GPU_FAST_DIV(dg4 << FIXED_BITS, dx4); |
| 1152 | db4 = GPU_FAST_DIV(db4 << FIXED_BITS, dx4); |
| 1153 | } else { |
| 1154 | du4 = dv4 = dr4 = dg4 = db4 = 0; |
| 1155 | } |
| 1156 | #endif |
| 1157 | #endif |
| 1158 | // Set u,v increments and packed Gouraud increment for inner driver |
| e223fa15 |
1159 | gpu_unai.u_inc = du4; |
| 1160 | gpu_unai.v_inc = dv4; |
| 1161 | gpu_unai.gInc = gpuPackGouraudColInc(dr4, dg4, db4); |
| 0bfe8d59 |
1162 | |
| 1163 | for (s32 loop0 = 2; loop0; loop0--) { |
| 1164 | if (loop0 == 2) { |
| 1165 | ya = y0; yb = y1; |
| 1166 | x3 = x4 = i2x(x0); |
| 1167 | u3 = i2x(u0); v3 = i2x(v0); |
| 1168 | r3 = i2x(r0); g3 = i2x(g0); b3 = i2x(b0); |
| 1169 | if (dx < 0) { |
| 1170 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 1171 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 1172 | if ((y2 - y0) != 0) { |
| 1173 | float finv = FloatInv(y2 - y0); |
| 1174 | dx3 = (fixed)(((x2 - x0) << FIXED_BITS) * finv); |
| 1175 | du3 = (fixed)(((u2 - u0) << FIXED_BITS) * finv); |
| 1176 | dv3 = (fixed)(((v2 - v0) << FIXED_BITS) * finv); |
| 1177 | dr3 = (fixed)(((r2 - r0) << FIXED_BITS) * finv); |
| 1178 | dg3 = (fixed)(((g2 - g0) << FIXED_BITS) * finv); |
| 1179 | db3 = (fixed)(((b2 - b0) << FIXED_BITS) * finv); |
| 1180 | } else { |
| 1181 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1182 | } |
| 1183 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) * FloatInv(y1 - y0)) : 0; |
| 1184 | #else |
| 1185 | if ((y2 - y0) != 0) { |
| 1186 | float fdiv = y2 - y0; |
| 1187 | dx3 = (fixed)(((x2 - x0) << FIXED_BITS) / fdiv); |
| 1188 | du3 = (fixed)(((u2 - u0) << FIXED_BITS) / fdiv); |
| 1189 | dv3 = (fixed)(((v2 - v0) << FIXED_BITS) / fdiv); |
| 1190 | dr3 = (fixed)(((r2 - r0) << FIXED_BITS) / fdiv); |
| 1191 | dg3 = (fixed)(((g2 - g0) << FIXED_BITS) / fdiv); |
| 1192 | db3 = (fixed)(((b2 - b0) << FIXED_BITS) / fdiv); |
| 1193 | } else { |
| 1194 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1195 | } |
| 1196 | dx4 = ((y1 - y0) != 0) ? (fixed)(((x1 - x0) << FIXED_BITS) / (float)(y1 - y0)) : 0; |
| 1197 | #endif |
| 1198 | #else // Integer Division: |
| 1199 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 1200 | if ((y2 - y0) != 0) { |
| 1201 | int iF, iS; |
| 1202 | xInv((y2 - y0), iF, iS); |
| 1203 | dx3 = xInvMulx((x2 - x0), iF, iS); |
| 1204 | du3 = xInvMulx((u2 - u0), iF, iS); |
| 1205 | dv3 = xInvMulx((v2 - v0), iF, iS); |
| 1206 | dr3 = xInvMulx((r2 - r0), iF, iS); |
| 1207 | dg3 = xInvMulx((g2 - g0), iF, iS); |
| 1208 | db3 = xInvMulx((b2 - b0), iF, iS); |
| 1209 | } else { |
| 1210 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1211 | } |
| 1212 | dx4 = ((y1 - y0) != 0) ? xLoDivx((x1 - x0), (y1 - y0)) : 0; |
| 1213 | #else |
| 1214 | if ((y2 - y0) != 0) { |
| 1215 | dx3 = GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)); |
| 1216 | du3 = GPU_FAST_DIV((u2 - u0) << FIXED_BITS, (y2 - y0)); |
| 1217 | dv3 = GPU_FAST_DIV((v2 - v0) << FIXED_BITS, (y2 - y0)); |
| 1218 | dr3 = GPU_FAST_DIV((r2 - r0) << FIXED_BITS, (y2 - y0)); |
| 1219 | dg3 = GPU_FAST_DIV((g2 - g0) << FIXED_BITS, (y2 - y0)); |
| 1220 | db3 = GPU_FAST_DIV((b2 - b0) << FIXED_BITS, (y2 - y0)); |
| 1221 | } else { |
| 1222 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1223 | } |
| 1224 | dx4 = ((y1 - y0) != 0) ? GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)) : 0; |
| 1225 | #endif |
| 1226 | #endif |
| 1227 | } else { |
| 1228 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 1229 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 1230 | if ((y1 - y0) != 0) { |
| 1231 | float finv = FloatInv(y1 - y0); |
| 1232 | dx3 = (fixed)(((x1 - x0) << FIXED_BITS) * finv); |
| 1233 | du3 = (fixed)(((u1 - u0) << FIXED_BITS) * finv); |
| 1234 | dv3 = (fixed)(((v1 - v0) << FIXED_BITS) * finv); |
| 1235 | dr3 = (fixed)(((r1 - r0) << FIXED_BITS) * finv); |
| 1236 | dg3 = (fixed)(((g1 - g0) << FIXED_BITS) * finv); |
| 1237 | db3 = (fixed)(((b1 - b0) << FIXED_BITS) * finv); |
| 1238 | } else { |
| 1239 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1240 | } |
| 1241 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) * FloatInv(y2 - y0)) : 0; |
| 1242 | #else |
| 1243 | if ((y1 - y0) != 0) { |
| 1244 | float fdiv = y1 - y0; |
| 1245 | dx3 = (fixed)(((x1 - x0) << FIXED_BITS) / fdiv); |
| 1246 | du3 = (fixed)(((u1 - u0) << FIXED_BITS) / fdiv); |
| 1247 | dv3 = (fixed)(((v1 - v0) << FIXED_BITS) / fdiv); |
| 1248 | dr3 = (fixed)(((r1 - r0) << FIXED_BITS) / fdiv); |
| 1249 | dg3 = (fixed)(((g1 - g0) << FIXED_BITS) / fdiv); |
| 1250 | db3 = (fixed)(((b1 - b0) << FIXED_BITS) / fdiv); |
| 1251 | } else { |
| 1252 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1253 | } |
| 1254 | dx4 = ((y2 - y0) != 0) ? (fixed)(((x2 - x0) << FIXED_BITS) / float(y2 - y0)) : 0; |
| 1255 | #endif |
| 1256 | #else // Integer Division: |
| 1257 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 1258 | if ((y1 - y0) != 0) { |
| 1259 | int iF, iS; |
| 1260 | xInv((y1 - y0), iF, iS); |
| 1261 | dx3 = xInvMulx((x1 - x0), iF, iS); |
| 1262 | du3 = xInvMulx((u1 - u0), iF, iS); |
| 1263 | dv3 = xInvMulx((v1 - v0), iF, iS); |
| 1264 | dr3 = xInvMulx((r1 - r0), iF, iS); |
| 1265 | dg3 = xInvMulx((g1 - g0), iF, iS); |
| 1266 | db3 = xInvMulx((b1 - b0), iF, iS); |
| 1267 | } else { |
| 1268 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1269 | } |
| 1270 | dx4 = ((y2 - y0) != 0) ? xLoDivx((x2 - x0), (y2 - y0)) : 0; |
| 1271 | #else |
| 1272 | if ((y1 - y0) != 0) { |
| 1273 | dx3 = GPU_FAST_DIV((x1 - x0) << FIXED_BITS, (y1 - y0)); |
| 1274 | du3 = GPU_FAST_DIV((u1 - u0) << FIXED_BITS, (y1 - y0)); |
| 1275 | dv3 = GPU_FAST_DIV((v1 - v0) << FIXED_BITS, (y1 - y0)); |
| 1276 | dr3 = GPU_FAST_DIV((r1 - r0) << FIXED_BITS, (y1 - y0)); |
| 1277 | dg3 = GPU_FAST_DIV((g1 - g0) << FIXED_BITS, (y1 - y0)); |
| 1278 | db3 = GPU_FAST_DIV((b1 - b0) << FIXED_BITS, (y1 - y0)); |
| 1279 | } else { |
| 1280 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1281 | } |
| 1282 | dx4 = ((y2 - y0) != 0) ? GPU_FAST_DIV((x2 - x0) << FIXED_BITS, (y2 - y0)) : 0; |
| 1283 | #endif |
| 1284 | #endif |
| 1285 | } |
| 1286 | } else { |
| 1287 | //senquack - break out of final loop if nothing to be drawn (1st loop |
| 1288 | // must always be taken to setup dx3/dx4) |
| 1289 | if (y1 == y2) break; |
| 1290 | |
| 1291 | ya = y1; yb = y2; |
| 1292 | |
| 1293 | if (dx < 0) { |
| 1294 | x3 = i2x(x0); x4 = i2x(x1); |
| 1295 | u3 = i2x(u0); v3 = i2x(v0); |
| 1296 | r3 = i2x(r0); g3 = i2x(g0); b3 = i2x(b0); |
| 1297 | |
| 1298 | if ((y1 - y0) != 0) { |
| 1299 | x3 += (dx3 * (y1 - y0)); |
| 1300 | u3 += (du3 * (y1 - y0)); |
| 1301 | v3 += (dv3 * (y1 - y0)); |
| 1302 | r3 += (dr3 * (y1 - y0)); |
| 1303 | g3 += (dg3 * (y1 - y0)); |
| 1304 | b3 += (db3 * (y1 - y0)); |
| 1305 | } |
| 1306 | |
| 1307 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 1308 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 1309 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) * FloatInv(y2 - y1)) : 0; |
| 1310 | #else |
| 1311 | dx4 = ((y2 - y1) != 0) ? (fixed)(((x2 - x1) << FIXED_BITS) / (float)(y2 - y1)) : 0; |
| 1312 | #endif |
| 1313 | #else // Integer Division: |
| 1314 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 1315 | dx4 = ((y2 - y1) != 0) ? xLoDivx((x2 - x1), (y2 - y1)) : 0; |
| 1316 | #else |
| 1317 | dx4 = ((y2 - y1) != 0) ? GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)) : 0; |
| 1318 | #endif |
| 1319 | #endif |
| 1320 | } else { |
| 1321 | x3 = i2x(x1); |
| 1322 | x4 = i2x(x0) + (dx4 * (y1 - y0)); |
| 1323 | |
| 1324 | u3 = i2x(u1); v3 = i2x(v1); |
| 1325 | r3 = i2x(r1); g3 = i2x(g1); b3 = i2x(b1); |
| 1326 | #ifdef GPU_UNAI_USE_FLOATMATH |
| 1327 | #ifdef GPU_UNAI_USE_FLOAT_DIV_MULTINV |
| 1328 | if ((y2 - y1) != 0) { |
| 1329 | float finv = FloatInv(y2 - y1); |
| 1330 | dx3 = (fixed)(((x2 - x1) << FIXED_BITS) * finv); |
| 1331 | du3 = (fixed)(((u2 - u1) << FIXED_BITS) * finv); |
| 1332 | dv3 = (fixed)(((v2 - v1) << FIXED_BITS) * finv); |
| 1333 | dr3 = (fixed)(((r2 - r1) << FIXED_BITS) * finv); |
| 1334 | dg3 = (fixed)(((g2 - g1) << FIXED_BITS) * finv); |
| 1335 | db3 = (fixed)(((b2 - b1) << FIXED_BITS) * finv); |
| 1336 | } else { |
| 1337 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1338 | } |
| 1339 | #else |
| 1340 | if ((y2 - y1) != 0) { |
| 1341 | float fdiv = y2 - y1; |
| 1342 | dx3 = (fixed)(((x2 - x1) << FIXED_BITS) / fdiv); |
| 1343 | du3 = (fixed)(((u2 - u1) << FIXED_BITS) / fdiv); |
| 1344 | dv3 = (fixed)(((v2 - v1) << FIXED_BITS) / fdiv); |
| 1345 | dr3 = (fixed)(((r2 - r1) << FIXED_BITS) / fdiv); |
| 1346 | dg3 = (fixed)(((g2 - g1) << FIXED_BITS) / fdiv); |
| 1347 | db3 = (fixed)(((b2 - b1) << FIXED_BITS) / fdiv); |
| 1348 | } else { |
| 1349 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1350 | } |
| 1351 | #endif |
| 1352 | #else // Integer Division: |
| 1353 | #ifdef GPU_UNAI_USE_INT_DIV_MULTINV |
| 1354 | if ((y2 - y1) != 0) { |
| 1355 | int iF, iS; |
| 1356 | xInv((y2 - y1), iF, iS); |
| 1357 | dx3 = xInvMulx((x2 - x1), iF, iS); |
| 1358 | du3 = xInvMulx((u2 - u1), iF, iS); |
| 1359 | dv3 = xInvMulx((v2 - v1), iF, iS); |
| 1360 | dr3 = xInvMulx((r2 - r1), iF, iS); |
| 1361 | dg3 = xInvMulx((g2 - g1), iF, iS); |
| 1362 | db3 = xInvMulx((b2 - b1), iF, iS); |
| 1363 | } else { |
| 1364 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1365 | } |
| 1366 | #else |
| 1367 | if ((y2 - y1) != 0) { |
| 1368 | dx3 = GPU_FAST_DIV((x2 - x1) << FIXED_BITS, (y2 - y1)); |
| 1369 | du3 = GPU_FAST_DIV((u2 - u1) << FIXED_BITS, (y2 - y1)); |
| 1370 | dv3 = GPU_FAST_DIV((v2 - v1) << FIXED_BITS, (y2 - y1)); |
| 1371 | dr3 = GPU_FAST_DIV((r2 - r1) << FIXED_BITS, (y2 - y1)); |
| 1372 | dg3 = GPU_FAST_DIV((g2 - g1) << FIXED_BITS, (y2 - y1)); |
| 1373 | db3 = GPU_FAST_DIV((b2 - b1) << FIXED_BITS, (y2 - y1)); |
| 1374 | } else { |
| 1375 | dx3 = du3 = dv3 = dr3 = dg3 = db3 = 0; |
| 1376 | } |
| 1377 | #endif |
| 1378 | #endif |
| 1379 | } |
| 1380 | } |
| 1381 | |
| 1382 | s32 xmin, xmax, ymin, ymax; |
| e223fa15 |
1383 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
| 1384 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
| 0bfe8d59 |
1385 | |
| 1386 | if ((ymin - ya) > 0) { |
| 1387 | x3 += (dx3 * (ymin - ya)); |
| 1388 | x4 += (dx4 * (ymin - ya)); |
| 1389 | u3 += (du3 * (ymin - ya)); |
| 1390 | v3 += (dv3 * (ymin - ya)); |
| 1391 | r3 += (dr3 * (ymin - ya)); |
| 1392 | g3 += (dg3 * (ymin - ya)); |
| 1393 | b3 += (db3 * (ymin - ya)); |
| 1394 | ya = ymin; |
| 1395 | } |
| 1396 | |
| 1397 | if (yb > ymax) yb = ymax; |
| 1398 | |
| 1399 | int loop1 = yb - ya; |
| 1400 | if (loop1 <= 0) |
| 1401 | continue; |
| 1402 | |
| e223fa15 |
1403 | le16_t* PixelBase = &gpu_unai.vram[FRAME_OFFSET(0, ya)]; |
| 1404 | int li=gpu_unai.ilace_mask; |
| 1405 | int pi=(ProgressiveInterlaceEnabled()?(gpu_unai.ilace_mask+1):0); |
| 1406 | int pif=(ProgressiveInterlaceEnabled()?(gpu_unai.prog_ilace_flag?(gpu_unai.ilace_mask+1):0):1); |
| 0bfe8d59 |
1407 | |
| 1408 | for (; loop1; --loop1, ++ya, PixelBase += FRAME_WIDTH, |
| 1409 | x3 += dx3, x4 += dx4, |
| 1410 | u3 += du3, v3 += dv3, |
| 1411 | r3 += dr3, g3 += dg3, b3 += db3 ) |
| 1412 | { |
| 1413 | if (ya&li) continue; |
| 1414 | if ((ya&pi)==pif) continue; |
| 1415 | |
| 1416 | u32 u4, v4; |
| 1417 | u32 r4, g4, b4; |
| 1418 | |
| 1419 | xa = FixedCeilToInt(x3); |
| 1420 | xb = FixedCeilToInt(x4); |
| 1421 | u4 = u3; v4 = v3; |
| 1422 | r4 = r3; g4 = g3; b4 = b3; |
| 1423 | |
| 1424 | fixed itmp = i2x(xa) - x3; |
| 1425 | if (itmp != 0) { |
| 1426 | u4 += (du4 * itmp) >> FIXED_BITS; |
| 1427 | v4 += (dv4 * itmp) >> FIXED_BITS; |
| 1428 | r4 += (dr4 * itmp) >> FIXED_BITS; |
| 1429 | g4 += (dg4 * itmp) >> FIXED_BITS; |
| 1430 | b4 += (db4 * itmp) >> FIXED_BITS; |
| 1431 | } |
| 1432 | |
| 1433 | u4 += fixed_HALF; |
| 1434 | v4 += fixed_HALF; |
| 1435 | r4 += fixed_HALF; |
| 1436 | g4 += fixed_HALF; |
| 1437 | b4 += fixed_HALF; |
| 1438 | |
| 1439 | if ((xmin - xa) > 0) { |
| 1440 | u4 += du4 * (xmin - xa); |
| 1441 | v4 += dv4 * (xmin - xa); |
| 1442 | r4 += dr4 * (xmin - xa); |
| 1443 | g4 += dg4 * (xmin - xa); |
| 1444 | b4 += db4 * (xmin - xa); |
| 1445 | xa = xmin; |
| 1446 | } |
| 1447 | |
| 1448 | // Set packed Gouraud color and u,v coords for inner driver |
| e223fa15 |
1449 | gpu_unai.u = u4; |
| 1450 | gpu_unai.v = v4; |
| 1451 | gpu_unai.gCol = gpuPackGouraudCol(r4, g4, b4); |
| 0bfe8d59 |
1452 | |
| 1453 | if (xb > xmax) xb = xmax; |
| 1454 | if ((xb - xa) > 0) |
| e223fa15 |
1455 | gpuPolySpanDriver(gpu_unai, PixelBase + xa, (xb - xa)); |
| 0bfe8d59 |
1456 | } |
| 1457 | } |
| 1458 | } while (++cur_pass < total_passes); |
| 1459 | } |
| 1460 | |
| 1461 | #endif /* __GPU_UNAI_GPU_RASTER_POLYGON_H__ */ |
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