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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 |
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37 | struct { u8 u, v, pad[2]; } tex; // Texture coords (if used) |
e223fa15 |
38 | #endif |
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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 |
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45 | struct { u8 r, g, b, pad; } col; // 24-bit RGB color (if used) |
e223fa15 |
46 | #endif |
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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; |
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80 | |
81 | // X,Y coords, adjusted by draw offsets |
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82 | s32 x_off = gpu_unai.DrawingOffset[0]; |
83 | s32 y_off = gpu_unai.DrawingOffset[1]; |
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84 | ptr = &packet.U4[1]; |
85 | for (int i=0; i < num_verts; ++i, ptr += vert_stride) { |
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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; |
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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) |
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95 | vbuf[i].tex_word = le32_to_u32(*ptr); |
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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) |
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102 | vbuf[i].col_word = le32_to_u32(*ptr); |
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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; |
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200 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
201 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
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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 |
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229 | gpu_unai.PixelData = GPU_RGB16(le32_to_u32(packet.U4[0])); |
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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; |
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338 | xmin = gpu_unai.DrawingArea[0]; xmax = gpu_unai.DrawingArea[2]; |
339 | ymin = gpu_unai.DrawingArea[1]; ymax = gpu_unai.DrawingArea[3]; |
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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); |
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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) |
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368 | gpuPolySpanDriver(gpu_unai, PixelBase + xa, (xb - xa)); |
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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; |
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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__ */ |