86aad47b |
1 | /*************************************************************************** |
2 | * Copyright (C) 2010 PCSX4ALL Team * |
3 | * Copyright (C) 2010 Unai * |
030d1121 |
4 | * Copyright (C) 2016 Senquack (dansilsby <AT> gmail <DOT> com) * |
86aad47b |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the * |
18 | * Free Software Foundation, Inc., * |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * |
20 | ***************************************************************************/ |
21 | |
22 | /////////////////////////////////////////////////////////////////////////////// |
030d1121 |
23 | // Inner loop driver instantiation file |
86aad47b |
24 | |
25 | /////////////////////////////////////////////////////////////////////////////// |
030d1121 |
26 | // Option Masks (CF template paramter) |
27 | #define CF_LIGHT ((CF>> 0)&1) // Lighting |
28 | #define CF_BLEND ((CF>> 1)&1) // Blending |
29 | #define CF_MASKCHECK ((CF>> 2)&1) // Mask bit check |
30 | #define CF_BLENDMODE ((CF>> 3)&3) // Blend mode 0..3 |
31 | #define CF_TEXTMODE ((CF>> 5)&3) // Texture mode 1..3 (0: texturing disabled) |
32 | #define CF_GOURAUD ((CF>> 7)&1) // Gouraud shading |
33 | #define CF_MASKSET ((CF>> 8)&1) // Mask bit set |
34 | #define CF_DITHER ((CF>> 9)&1) // Dithering |
35 | #define CF_BLITMASK ((CF>>10)&1) // blit_mask check (skip rendering pixels |
36 | // that wouldn't end up displayed on |
37 | // low-res screen using simple downscaler) |
86aad47b |
38 | |
030d1121 |
39 | //#ifdef __arm__ |
40 | //#ifndef ENABLE_GPU_ARMV7 |
41 | /* ARMv5 */ |
42 | //#include "gpu_inner_blend_arm5.h" |
43 | //#else |
44 | /* ARMv7 optimized */ |
45 | //#include "gpu_inner_blend_arm7.h" |
46 | //#endif |
47 | //#else |
48 | //#include "gpu_inner_blend.h" |
49 | //#endif |
86aad47b |
50 | |
030d1121 |
51 | // TODO: use the arm-optimized gpu_inner_blends for arm builds |
86aad47b |
52 | #include "gpu_inner_blend.h" |
030d1121 |
53 | |
54 | #include "gpu_inner_quantization.h" |
86aad47b |
55 | #include "gpu_inner_light.h" |
56 | |
030d1121 |
57 | // If defined, Gouraud colors are fixed-point 5.11, otherwise they are 8.16 |
58 | // This is only for debugging/verification of low-precision colors in C. |
59 | // Low-precision Gouraud is intended for use by SIMD-optimized inner drivers |
60 | // which get/use Gouraud colors in SIMD registers. |
61 | //#define GPU_GOURAUD_LOW_PRECISION |
62 | |
63 | // How many bits of fixed-point precision GouraudColor uses |
64 | #ifdef GPU_GOURAUD_LOW_PRECISION |
65 | #define GPU_GOURAUD_FIXED_BITS 11 |
66 | #else |
67 | #define GPU_GOURAUD_FIXED_BITS 16 |
68 | #endif |
69 | |
70 | // Used to pass Gouraud colors to gpuPixelSpanFn() (lines) |
71 | struct GouraudColor { |
72 | #ifdef GPU_GOURAUD_LOW_PRECISION |
73 | u16 r, g, b; |
74 | s16 r_incr, g_incr, b_incr; |
75 | #else |
76 | u32 r, g, b; |
77 | s32 r_incr, g_incr, b_incr; |
78 | #endif |
79 | }; |
80 | |
81 | static inline u16 gpuGouraudColor15bpp(u32 r, u32 g, u32 b) |
82 | { |
83 | r >>= GPU_GOURAUD_FIXED_BITS; |
84 | g >>= GPU_GOURAUD_FIXED_BITS; |
85 | b >>= GPU_GOURAUD_FIXED_BITS; |
86 | |
87 | #ifndef GPU_GOURAUD_LOW_PRECISION |
88 | // High-precision Gouraud colors are 8-bit + fractional |
89 | r >>= 3; g >>= 3; b >>= 3; |
90 | #endif |
91 | |
92 | return r | (g << 5) | (b << 10); |
93 | } |
94 | |
86aad47b |
95 | /////////////////////////////////////////////////////////////////////////////// |
030d1121 |
96 | // GPU Pixel span operations generator gpuPixelSpanFn<> |
97 | // Oct 2016: Created/adapted from old gpuPixelFn by senquack: |
98 | // Original gpuPixelFn was used to draw lines one pixel at a time. I wrote |
99 | // new line algorithms that draw lines using horizontal/vertical/diagonal |
100 | // spans of pixels, necessitating new pixel-drawing function that could |
101 | // not only render spans of pixels, but gouraud-shade them as well. |
102 | // This speeds up line rendering and would allow tile-rendering (untextured |
103 | // rectangles) to use the same set of functions. Since tiles are always |
104 | // monochrome, they simply wouldn't use the extra set of 32 gouraud-shaded |
105 | // gpuPixelSpanFn functions (TODO?). |
106 | // |
107 | // NOTE: While the PS1 framebuffer is 16 bit, we use 8-bit pointers here, |
108 | // so that pDst can be incremented directly by 'incr' parameter |
109 | // without having to shift it before use. |
110 | template<int CF> |
111 | static u8* gpuPixelSpanFn(u8* pDst, uintptr_t data, ptrdiff_t incr, size_t len) |
86aad47b |
112 | { |
030d1121 |
113 | // Blend func can save an operation if it knows uSrc MSB is |
114 | // unset. For untextured prims, this is always true. |
115 | const bool skip_uSrc_mask = true; |
116 | |
117 | u16 col; |
118 | struct GouraudColor * gcPtr; |
119 | u32 r, g, b; |
120 | s32 r_incr, g_incr, b_incr; |
121 | |
122 | if (CF_GOURAUD) { |
123 | gcPtr = (GouraudColor*)data; |
124 | r = gcPtr->r; r_incr = gcPtr->r_incr; |
125 | g = gcPtr->g; g_incr = gcPtr->g_incr; |
126 | b = gcPtr->b; b_incr = gcPtr->b_incr; |
127 | } else { |
128 | col = (u16)data; |
86aad47b |
129 | } |
030d1121 |
130 | |
131 | do { |
132 | if (!CF_GOURAUD) |
133 | { // NO GOURAUD |
134 | if (!CF_MASKCHECK && !CF_BLEND) { |
135 | if (CF_MASKSET) { *(u16*)pDst = col | 0x8000; } |
136 | else { *(u16*)pDst = col; } |
137 | } else if (CF_MASKCHECK && !CF_BLEND) { |
138 | if (!(*(u16*)pDst & 0x8000)) { |
139 | if (CF_MASKSET) { *(u16*)pDst = col | 0x8000; } |
140 | else { *(u16*)pDst = col; } |
141 | } |
142 | } else { |
143 | u16 uDst = *(u16*)pDst; |
144 | if (CF_MASKCHECK) { if (uDst & 0x8000) goto endpixel; } |
145 | |
146 | u16 uSrc = col; |
147 | |
148 | if (CF_BLEND) |
149 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
150 | |
151 | if (CF_MASKSET) { *(u16*)pDst = uSrc | 0x8000; } |
152 | else { *(u16*)pDst = uSrc; } |
153 | } |
154 | |
155 | } else |
156 | { // GOURAUD |
157 | |
158 | if (!CF_MASKCHECK && !CF_BLEND) { |
159 | col = gpuGouraudColor15bpp(r, g, b); |
160 | if (CF_MASKSET) { *(u16*)pDst = col | 0x8000; } |
161 | else { *(u16*)pDst = col; } |
162 | } else if (CF_MASKCHECK && !CF_BLEND) { |
163 | col = gpuGouraudColor15bpp(r, g, b); |
164 | if (!(*(u16*)pDst & 0x8000)) { |
165 | if (CF_MASKSET) { *(u16*)pDst = col | 0x8000; } |
166 | else { *(u16*)pDst = col; } |
167 | } |
168 | } else { |
169 | u16 uDst = *(u16*)pDst; |
170 | if (CF_MASKCHECK) { if (uDst & 0x8000) goto endpixel; } |
171 | col = gpuGouraudColor15bpp(r, g, b); |
172 | |
173 | u16 uSrc = col; |
174 | |
175 | // Blend func can save an operation if it knows uSrc MSB is |
176 | // unset. For untextured prims, this is always true. |
177 | const bool skip_uSrc_mask = true; |
178 | |
179 | if (CF_BLEND) |
180 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
181 | |
182 | if (CF_MASKSET) { *(u16*)pDst = uSrc | 0x8000; } |
183 | else { *(u16*)pDst = uSrc; } |
184 | } |
86aad47b |
185 | } |
030d1121 |
186 | |
187 | endpixel: |
188 | if (CF_GOURAUD) { |
189 | r += r_incr; |
190 | g += g_incr; |
191 | b += b_incr; |
192 | } |
193 | pDst += incr; |
194 | } while (len-- > 1); |
195 | |
196 | // Note from senquack: Normally, I'd prefer to write a 'do {} while (--len)' |
197 | // loop, or even a for() loop, however, on MIPS platforms anything but the |
198 | // 'do {} while (len-- > 1)' tends to generate very unoptimal asm, with |
199 | // many unneeded MULs/ADDs/branches at the ends of these functions. |
200 | // If you change the loop structure above, be sure to compare the quality |
201 | // of the generated code!! |
202 | |
203 | if (CF_GOURAUD) { |
204 | gcPtr->r = r; |
205 | gcPtr->g = g; |
206 | gcPtr->b = b; |
86aad47b |
207 | } |
030d1121 |
208 | return pDst; |
209 | } |
210 | |
211 | static u8* PixelSpanNULL(u8* pDst, uintptr_t data, ptrdiff_t incr, size_t len) |
212 | { |
213 | #ifdef ENABLE_GPU_LOG_SUPPORT |
214 | fprintf(stdout,"PixelSpanNULL()\n"); |
215 | #endif |
216 | return pDst; |
86aad47b |
217 | } |
86aad47b |
218 | |
219 | /////////////////////////////////////////////////////////////////////////////// |
030d1121 |
220 | // PixelSpan (lines) innerloops driver |
221 | typedef u8* (*PSD)(u8* dst, uintptr_t data, ptrdiff_t incr, size_t len); |
222 | |
223 | const PSD gpuPixelSpanDrivers[64] = |
86aad47b |
224 | { |
030d1121 |
225 | // Array index | 'CF' template field | Field value |
226 | // ------------+---------------------+---------------- |
227 | // Bit 0 | CF_BLEND | off (0), on (1) |
228 | // Bit 1 | CF_MASKCHECK | off (0), on (1) |
229 | // Bit 3:2 | CF_BLENDMODE | 0..3 |
230 | // Bit 4 | CF_MASKSET | off (0), on (1) |
231 | // Bit 5 | CF_GOURAUD | off (0), on (1) |
232 | // |
233 | // NULL entries are ones for which blending is disabled and blend-mode |
234 | // field is non-zero, which is obviously invalid. |
235 | |
236 | // Flat-shaded |
237 | gpuPixelSpanFn<0x00<<1>, gpuPixelSpanFn<0x01<<1>, gpuPixelSpanFn<0x02<<1>, gpuPixelSpanFn<0x03<<1>, |
238 | PixelSpanNULL, gpuPixelSpanFn<0x05<<1>, PixelSpanNULL, gpuPixelSpanFn<0x07<<1>, |
239 | PixelSpanNULL, gpuPixelSpanFn<0x09<<1>, PixelSpanNULL, gpuPixelSpanFn<0x0B<<1>, |
240 | PixelSpanNULL, gpuPixelSpanFn<0x0D<<1>, PixelSpanNULL, gpuPixelSpanFn<0x0F<<1>, |
241 | |
242 | // Flat-shaded + PixelMSB (CF_MASKSET) |
243 | gpuPixelSpanFn<(0x00<<1)|0x100>, gpuPixelSpanFn<(0x01<<1)|0x100>, gpuPixelSpanFn<(0x02<<1)|0x100>, gpuPixelSpanFn<(0x03<<1)|0x100>, |
244 | PixelSpanNULL, gpuPixelSpanFn<(0x05<<1)|0x100>, PixelSpanNULL, gpuPixelSpanFn<(0x07<<1)|0x100>, |
245 | PixelSpanNULL, gpuPixelSpanFn<(0x09<<1)|0x100>, PixelSpanNULL, gpuPixelSpanFn<(0x0B<<1)|0x100>, |
246 | PixelSpanNULL, gpuPixelSpanFn<(0x0D<<1)|0x100>, PixelSpanNULL, gpuPixelSpanFn<(0x0F<<1)|0x100>, |
247 | |
248 | // Gouraud-shaded (CF_GOURAUD) |
249 | gpuPixelSpanFn<(0x00<<1)|0x80>, gpuPixelSpanFn<(0x01<<1)|0x80>, gpuPixelSpanFn<(0x02<<1)|0x80>, gpuPixelSpanFn<(0x03<<1)|0x80>, |
250 | PixelSpanNULL, gpuPixelSpanFn<(0x05<<1)|0x80>, PixelSpanNULL, gpuPixelSpanFn<(0x07<<1)|0x80>, |
251 | PixelSpanNULL, gpuPixelSpanFn<(0x09<<1)|0x80>, PixelSpanNULL, gpuPixelSpanFn<(0x0B<<1)|0x80>, |
252 | PixelSpanNULL, gpuPixelSpanFn<(0x0D<<1)|0x80>, PixelSpanNULL, gpuPixelSpanFn<(0x0F<<1)|0x80>, |
253 | |
254 | // Gouraud-shaded (CF_GOURAUD) + PixelMSB (CF_MASKSET) |
255 | gpuPixelSpanFn<(0x00<<1)|0x180>, gpuPixelSpanFn<(0x01<<1)|0x180>, gpuPixelSpanFn<(0x02<<1)|0x180>, gpuPixelSpanFn<(0x03<<1)|0x180>, |
256 | PixelSpanNULL, gpuPixelSpanFn<(0x05<<1)|0x180>, PixelSpanNULL, gpuPixelSpanFn<(0x07<<1)|0x180>, |
257 | PixelSpanNULL, gpuPixelSpanFn<(0x09<<1)|0x180>, PixelSpanNULL, gpuPixelSpanFn<(0x0B<<1)|0x180>, |
258 | PixelSpanNULL, gpuPixelSpanFn<(0x0D<<1)|0x180>, PixelSpanNULL, gpuPixelSpanFn<(0x0F<<1)|0x180> |
86aad47b |
259 | }; |
260 | |
261 | /////////////////////////////////////////////////////////////////////////////// |
262 | // GPU Tiles innerloops generator |
263 | |
030d1121 |
264 | template<int CF> |
265 | static void gpuTileSpanFn(u16 *pDst, u32 count, u16 data) |
86aad47b |
266 | { |
030d1121 |
267 | if (!CF_MASKCHECK && !CF_BLEND) { |
268 | if (CF_MASKSET) { data = data | 0x8000; } |
86aad47b |
269 | do { *pDst++ = data; } while (--count); |
030d1121 |
270 | } else if (CF_MASKCHECK && !CF_BLEND) { |
271 | if (CF_MASKSET) { data = data | 0x8000; } |
86aad47b |
272 | do { if (!(*pDst&0x8000)) { *pDst = data; } pDst++; } while (--count); |
030d1121 |
273 | } else |
86aad47b |
274 | { |
030d1121 |
275 | // Blend func can save an operation if it knows uSrc MSB is |
276 | // unset. For untextured prims, this is always true. |
277 | const bool skip_uSrc_mask = true; |
278 | |
279 | u16 uSrc, uDst; |
86aad47b |
280 | do |
281 | { |
030d1121 |
282 | if (CF_MASKCHECK || CF_BLEND) { uDst = *pDst; } |
283 | if (CF_MASKCHECK) { if (uDst&0x8000) goto endtile; } |
284 | |
86aad47b |
285 | uSrc = data; |
286 | |
030d1121 |
287 | if (CF_BLEND) |
288 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
86aad47b |
289 | |
030d1121 |
290 | if (CF_MASKSET) { *pDst = uSrc | 0x8000; } |
291 | else { *pDst = uSrc; } |
292 | |
293 | //senquack - Did not apply "Silent Hill" mask-bit fix to here. |
294 | // It is hard to tell from scarce documentation available and |
295 | // lack of comments in code, but I believe the tile-span |
296 | // functions here should not bother to preserve any source MSB, |
297 | // as they are not drawing from a texture. |
298 | endtile: |
299 | pDst++; |
86aad47b |
300 | } |
301 | while (--count); |
302 | } |
303 | } |
304 | |
030d1121 |
305 | static void TileNULL(u16 *pDst, u32 count, u16 data) |
306 | { |
307 | #ifdef ENABLE_GPU_LOG_SUPPORT |
308 | fprintf(stdout,"TileNULL()\n"); |
309 | #endif |
310 | } |
311 | |
86aad47b |
312 | /////////////////////////////////////////////////////////////////////////////// |
313 | // Tiles innerloops driver |
314 | typedef void (*PT)(u16 *pDst, u32 count, u16 data); |
86aad47b |
315 | |
030d1121 |
316 | // Template instantiation helper macros |
317 | #define TI(cf) gpuTileSpanFn<(cf)> |
318 | #define TN TileNULL |
319 | #define TIBLOCK(ub) \ |
320 | TI((ub)|0x00), TI((ub)|0x02), TI((ub)|0x04), TI((ub)|0x06), \ |
321 | TN, TI((ub)|0x0a), TN, TI((ub)|0x0e), \ |
322 | TN, TI((ub)|0x12), TN, TI((ub)|0x16), \ |
323 | TN, TI((ub)|0x1a), TN, TI((ub)|0x1e) |
324 | |
325 | const PT gpuTileSpanDrivers[32] = { |
326 | TIBLOCK(0<<8), TIBLOCK(1<<8) |
86aad47b |
327 | }; |
328 | |
030d1121 |
329 | #undef TI |
330 | #undef TN |
331 | #undef TIBLOCK |
332 | |
333 | |
86aad47b |
334 | /////////////////////////////////////////////////////////////////////////////// |
335 | // GPU Sprites innerloops generator |
336 | |
030d1121 |
337 | template<int CF> |
338 | static void gpuSpriteSpanFn(u16 *pDst, u32 count, u8* pTxt, u32 u0) |
86aad47b |
339 | { |
030d1121 |
340 | // Blend func can save an operation if it knows uSrc MSB is unset. |
341 | // Untextured prims can always skip (source color always comes with MSB=0). |
342 | // For textured prims, lighting funcs always return it unset. (bonus!) |
343 | const bool skip_uSrc_mask = (!CF_TEXTMODE) || CF_LIGHT; |
344 | |
345 | u16 uSrc, uDst, srcMSB; |
346 | u32 u0_mask = gpu_unai.TextureWindow[2]; |
347 | |
348 | u8 r5, g5, b5; |
349 | if (CF_LIGHT) { |
350 | r5 = gpu_unai.r5; |
351 | g5 = gpu_unai.g5; |
352 | b5 = gpu_unai.b5; |
353 | } |
354 | |
355 | if (CF_TEXTMODE==3) { |
356 | // Texture is accessed byte-wise, so adjust mask if 16bpp |
357 | u0_mask <<= 1; |
358 | } |
359 | |
360 | const u16 *CBA_; if (CF_TEXTMODE!=3) CBA_ = gpu_unai.CBA; |
86aad47b |
361 | |
362 | do |
363 | { |
030d1121 |
364 | if (CF_MASKCHECK || CF_BLEND) { uDst = *pDst; } |
365 | if (CF_MASKCHECK) if (uDst&0x8000) { goto endsprite; } |
86aad47b |
366 | |
030d1121 |
367 | if (CF_TEXTMODE==1) { // 4bpp (CLUT) |
368 | u8 rgb = pTxt[(u0 & u0_mask)>>1]; |
369 | uSrc = CBA_[(rgb>>((u0&1)<<2))&0xf]; |
86aad47b |
370 | } |
030d1121 |
371 | if (CF_TEXTMODE==2) { // 8bpp (CLUT) |
372 | uSrc = CBA_[pTxt[u0 & u0_mask]]; |
373 | } |
374 | if (CF_TEXTMODE==3) { // 16bpp |
375 | uSrc = *(u16*)(&pTxt[u0 & u0_mask]); |
86aad47b |
376 | } |
377 | |
030d1121 |
378 | if (!uSrc) goto endsprite; |
379 | |
380 | //senquack - save source MSB, as blending or lighting macros will not |
381 | // (Silent Hill gray rectangles mask bit bug) |
382 | if (CF_BLEND || CF_LIGHT) srcMSB = uSrc & 0x8000; |
86aad47b |
383 | |
030d1121 |
384 | if (CF_LIGHT) |
385 | uSrc = gpuLightingTXT(uSrc, r5, g5, b5); |
386 | |
387 | if (CF_BLEND && srcMSB) |
388 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
389 | |
390 | if (CF_MASKSET) { *pDst = uSrc | 0x8000; } |
391 | else if (CF_BLEND || CF_LIGHT) { *pDst = uSrc | srcMSB; } |
392 | else { *pDst = uSrc; } |
393 | |
394 | endsprite: |
395 | u0 += (CF_TEXTMODE==3) ? 2 : 1; |
396 | pDst++; |
86aad47b |
397 | } |
398 | while (--count); |
399 | } |
030d1121 |
400 | |
401 | static void SpriteNULL(u16 *pDst, u32 count, u8* pTxt, u32 u0) |
402 | { |
403 | #ifdef ENABLE_GPU_LOG_SUPPORT |
404 | fprintf(stdout,"SpriteNULL()\n"); |
405 | #endif |
406 | } |
407 | |
86aad47b |
408 | /////////////////////////////////////////////////////////////////////////////// |
409 | |
410 | /////////////////////////////////////////////////////////////////////////////// |
411 | // Sprite innerloops driver |
030d1121 |
412 | typedef void (*PS)(u16 *pDst, u32 count, u8* pTxt, u32 u0); |
413 | |
414 | // Template instantiation helper macros |
415 | #define TI(cf) gpuSpriteSpanFn<(cf)> |
416 | #define TN SpriteNULL |
417 | #define TIBLOCK(ub) \ |
418 | TN, TN, TN, TN, TN, TN, TN, TN, \ |
419 | TN, TN, TN, TN, TN, TN, TN, TN, \ |
420 | TN, TN, TN, TN, TN, TN, TN, TN, \ |
421 | TN, TN, TN, TN, TN, TN, TN, TN, \ |
422 | TI((ub)|0x20), TI((ub)|0x21), TI((ub)|0x22), TI((ub)|0x23), TI((ub)|0x24), TI((ub)|0x25), TI((ub)|0x26), TI((ub)|0x27), \ |
423 | TN, TN, TI((ub)|0x2a), TI((ub)|0x2b), TN, TN, TI((ub)|0x2e), TI((ub)|0x2f), \ |
424 | TN, TN, TI((ub)|0x32), TI((ub)|0x33), TN, TN, TI((ub)|0x36), TI((ub)|0x37), \ |
425 | TN, TN, TI((ub)|0x3a), TI((ub)|0x3b), TN, TN, TI((ub)|0x3e), TI((ub)|0x3f), \ |
426 | TI((ub)|0x40), TI((ub)|0x41), TI((ub)|0x42), TI((ub)|0x43), TI((ub)|0x44), TI((ub)|0x45), TI((ub)|0x46), TI((ub)|0x47), \ |
427 | TN, TN, TI((ub)|0x4a), TI((ub)|0x4b), TN, TN, TI((ub)|0x4e), TI((ub)|0x4f), \ |
428 | TN, TN, TI((ub)|0x52), TI((ub)|0x53), TN, TN, TI((ub)|0x56), TI((ub)|0x57), \ |
429 | TN, TN, TI((ub)|0x5a), TI((ub)|0x5b), TN, TN, TI((ub)|0x5e), TI((ub)|0x5f), \ |
430 | TI((ub)|0x60), TI((ub)|0x61), TI((ub)|0x62), TI((ub)|0x63), TI((ub)|0x64), TI((ub)|0x65), TI((ub)|0x66), TI((ub)|0x67), \ |
431 | TN, TN, TI((ub)|0x6a), TI((ub)|0x6b), TN, TN, TI((ub)|0x6e), TI((ub)|0x6f), \ |
432 | TN, TN, TI((ub)|0x72), TI((ub)|0x73), TN, TN, TI((ub)|0x76), TI((ub)|0x77), \ |
433 | TN, TN, TI((ub)|0x7a), TI((ub)|0x7b), TN, TN, TI((ub)|0x7e), TI((ub)|0x7f) |
434 | |
435 | const PS gpuSpriteSpanDrivers[256] = { |
436 | TIBLOCK(0<<8), TIBLOCK(1<<8) |
86aad47b |
437 | }; |
438 | |
030d1121 |
439 | #undef TI |
440 | #undef TN |
441 | #undef TIBLOCK |
442 | |
86aad47b |
443 | /////////////////////////////////////////////////////////////////////////////// |
444 | // GPU Polygon innerloops generator |
030d1121 |
445 | |
446 | //senquack - Newer version with following changes: |
447 | // * Adapted to work with new poly routings in gpu_raster_polygon.h |
448 | // adapted from DrHell GPU. They are less glitchy and use 22.10 |
449 | // fixed-point instead of original UNAI's 16.16. |
450 | // * Texture coordinates are no longer packed together into one |
451 | // unsigned int. This seems to lose too much accuracy (they each |
452 | // end up being only 8.7 fixed-point that way) and pixel-droupouts |
453 | // were noticeable both with original code and current DrHell |
454 | // adaptations. An example would be the sky in NFS3. Now, they are |
455 | // stored in separate ints, using separate masks. |
456 | // * Function is no longer INLINE, as it was always called |
457 | // through a function pointer. |
458 | // * Function now ensures the mask bit of source texture is preserved |
459 | // across calls to blending functions (Silent Hill rectangles fix) |
460 | // * November 2016: Large refactoring of blending/lighting when |
461 | // JohnnyF added dithering. See gpu_inner_quantization.h and |
462 | // relevant blend/light headers. |
463 | // (see README_senquack.txt) |
464 | template<int CF> |
465 | static void gpuPolySpanFn(const gpu_unai_t &gpu_unai, u16 *pDst, u32 count) |
86aad47b |
466 | { |
030d1121 |
467 | // Blend func can save an operation if it knows uSrc MSB is unset. |
468 | // Untextured prims can always skip this (src color MSB is always 0). |
469 | // For textured prims, lighting funcs always return it unset. (bonus!) |
470 | const bool skip_uSrc_mask = (!CF_TEXTMODE) || CF_LIGHT; |
471 | |
472 | u32 bMsk; if (CF_BLITMASK) bMsk = gpu_unai.blit_mask; |
473 | |
474 | if (!CF_TEXTMODE) |
475 | { |
476 | if (!CF_GOURAUD) |
86aad47b |
477 | { |
030d1121 |
478 | // UNTEXTURED, NO GOURAUD |
479 | const u16 pix15 = gpu_unai.PixelData; |
480 | do { |
481 | u16 uSrc, uDst; |
482 | |
483 | // NOTE: Don't enable CF_BLITMASK pixel skipping (speed hack) |
484 | // on untextured polys. It seems to do more harm than good: see |
485 | // gravestone text at end of Medieval intro sequence. -senquack |
486 | //if (CF_BLITMASK) { if ((bMsk>>((((uintptr_t)pDst)>>1)&7))&1) { goto endpolynotextnogou; } } |
487 | |
488 | if (CF_BLEND || CF_MASKCHECK) uDst = *pDst; |
489 | if (CF_MASKCHECK) { if (uDst&0x8000) { goto endpolynotextnogou; } } |
490 | |
491 | uSrc = pix15; |
492 | |
493 | if (CF_BLEND) |
494 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
495 | |
496 | if (CF_MASKSET) { *pDst = uSrc | 0x8000; } |
497 | else { *pDst = uSrc; } |
498 | |
499 | endpolynotextnogou: |
500 | pDst++; |
501 | } while(--count); |
86aad47b |
502 | } |
503 | else |
504 | { |
030d1121 |
505 | // UNTEXTURED, GOURAUD |
506 | u32 l_gCol = gpu_unai.gCol; |
507 | u32 l_gInc = gpu_unai.gInc; |
508 | |
509 | do { |
510 | u16 uDst, uSrc; |
511 | |
512 | // See note in above loop regarding CF_BLITMASK |
513 | //if (CF_BLITMASK) { if ((bMsk>>((((uintptr_t)pDst)>>1)&7))&1) goto endpolynotextgou; } |
514 | |
515 | if (CF_BLEND || CF_MASKCHECK) uDst = *pDst; |
516 | if (CF_MASKCHECK) { if (uDst&0x8000) goto endpolynotextgou; } |
517 | |
518 | if (CF_DITHER) { |
519 | // GOURAUD, DITHER |
520 | |
521 | u32 uSrc24 = gpuLightingRGB24(l_gCol); |
522 | if (CF_BLEND) |
523 | uSrc24 = gpuBlending24<CF_BLENDMODE>(uSrc24, uDst); |
524 | uSrc = gpuColorQuantization24<CF_DITHER>(uSrc24, pDst); |
525 | } else { |
526 | // GOURAUD, NO DITHER |
527 | |
528 | uSrc = gpuLightingRGB(l_gCol); |
529 | |
530 | if (CF_BLEND) |
531 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
86aad47b |
532 | } |
030d1121 |
533 | |
534 | if (CF_MASKSET) { *pDst = uSrc | 0x8000; } |
535 | else { *pDst = uSrc; } |
536 | |
537 | endpolynotextgou: |
538 | pDst++; |
539 | l_gCol += l_gInc; |
86aad47b |
540 | } |
541 | while (--count); |
542 | } |
543 | } |
544 | else |
545 | { |
030d1121 |
546 | // TEXTURED |
547 | |
548 | u16 uDst, uSrc, srcMSB; |
549 | |
550 | //senquack - note: original UNAI code had gpu_unai.{u4/v4} packed into |
551 | // one 32-bit unsigned int, but this proved to lose too much accuracy |
552 | // (pixel drouputs noticeable in NFS3 sky), so now are separate vars. |
553 | u32 l_u_msk = gpu_unai.u_msk; u32 l_v_msk = gpu_unai.v_msk; |
554 | u32 l_u = gpu_unai.u & l_u_msk; u32 l_v = gpu_unai.v & l_v_msk; |
555 | s32 l_u_inc = gpu_unai.u_inc; s32 l_v_inc = gpu_unai.v_inc; |
556 | |
557 | const u16* TBA_ = gpu_unai.TBA; |
558 | const u16* CBA_; if (CF_TEXTMODE!=3) CBA_ = gpu_unai.CBA; |
559 | |
560 | u8 r5, g5, b5; |
561 | u8 r8, g8, b8; |
562 | |
563 | u32 l_gInc, l_gCol; |
564 | |
565 | if (CF_LIGHT) { |
566 | if (CF_GOURAUD) { |
567 | l_gInc = gpu_unai.gInc; |
568 | l_gCol = gpu_unai.gCol; |
569 | } else { |
570 | if (CF_DITHER) { |
571 | r8 = gpu_unai.r8; |
572 | g8 = gpu_unai.g8; |
573 | b8 = gpu_unai.b8; |
574 | } else { |
575 | r5 = gpu_unai.r5; |
576 | g5 = gpu_unai.g5; |
577 | b5 = gpu_unai.b5; |
578 | } |
579 | } |
580 | } |
581 | |
86aad47b |
582 | do |
583 | { |
030d1121 |
584 | if (CF_BLITMASK) { if ((bMsk>>((((uintptr_t)pDst)>>1)&7))&1) goto endpolytext; } |
585 | if (CF_MASKCHECK || CF_BLEND) { uDst = *pDst; } |
586 | if (CF_MASKCHECK) if (uDst&0x8000) { goto endpolytext; } |
587 | |
588 | //senquack - adapted to work with new 22.10 fixed point routines: |
589 | // (UNAI originally used 16.16) |
590 | if (CF_TEXTMODE==1) { // 4bpp (CLUT) |
591 | u32 tu=(l_u>>10); |
592 | u32 tv=(l_v<<1)&(0xff<<11); |
593 | u8 rgb=((u8*)TBA_)[tv+(tu>>1)]; |
594 | uSrc=CBA_[(rgb>>((tu&1)<<2))&0xf]; |
595 | if (!uSrc) goto endpolytext; |
596 | } |
597 | if (CF_TEXTMODE==2) { // 8bpp (CLUT) |
598 | uSrc = CBA_[(((u8*)TBA_)[(l_u>>10)+((l_v<<1)&(0xff<<11))])]; |
599 | if (!uSrc) goto endpolytext; |
86aad47b |
600 | } |
030d1121 |
601 | if (CF_TEXTMODE==3) { // 16bpp |
602 | uSrc = TBA_[(l_u>>10)+((l_v)&(0xff<<10))]; |
603 | if (!uSrc) goto endpolytext; |
604 | } |
605 | |
606 | // Save source MSB, as blending or lighting will not (Silent Hill) |
607 | if (CF_BLEND || CF_LIGHT) srcMSB = uSrc & 0x8000; |
608 | |
609 | // When textured, only dither when LIGHT (texture blend) is enabled |
610 | // LIGHT && BLEND => dither |
611 | // LIGHT && !BLEND => dither |
612 | //!LIGHT && BLEND => no dither |
613 | //!LIGHT && !BLEND => no dither |
614 | |
615 | if (CF_DITHER && CF_LIGHT) { |
616 | u32 uSrc24; |
617 | if ( CF_GOURAUD) |
618 | uSrc24 = gpuLightingTXT24Gouraud(uSrc, l_gCol); |
619 | if (!CF_GOURAUD) |
620 | uSrc24 = gpuLightingTXT24(uSrc, r8, g8, b8); |
621 | |
622 | if (CF_BLEND && srcMSB) |
623 | uSrc24 = gpuBlending24<CF_BLENDMODE>(uSrc24, uDst); |
624 | |
625 | uSrc = gpuColorQuantization24<CF_DITHER>(uSrc24, pDst); |
626 | } else |
86aad47b |
627 | { |
030d1121 |
628 | if (CF_LIGHT) { |
629 | if ( CF_GOURAUD) |
630 | uSrc = gpuLightingTXTGouraud(uSrc, l_gCol); |
631 | if (!CF_GOURAUD) |
632 | uSrc = gpuLightingTXT(uSrc, r5, g5, b5); |
633 | } |
634 | |
635 | if (CF_BLEND && srcMSB) |
636 | uSrc = gpuBlending<CF_BLENDMODE, skip_uSrc_mask>(uSrc, uDst); |
86aad47b |
637 | } |
030d1121 |
638 | |
639 | if (CF_MASKSET) { *pDst = uSrc | 0x8000; } |
640 | else if (CF_BLEND || CF_LIGHT) { *pDst = uSrc | srcMSB; } |
641 | else { *pDst = uSrc; } |
642 | endpolytext: |
643 | pDst++; |
644 | l_u = (l_u + l_u_inc) & l_u_msk; |
645 | l_v = (l_v + l_v_inc) & l_v_msk; |
646 | if (CF_LIGHT && CF_GOURAUD) l_gCol += l_gInc; |
86aad47b |
647 | } |
648 | while (--count); |
649 | } |
650 | } |
faf8bb13 |
651 | |
030d1121 |
652 | static void PolyNULL(const gpu_unai_t &gpu_unai, u16 *pDst, u32 count) |
faf8bb13 |
653 | { |
030d1121 |
654 | #ifdef ENABLE_GPU_LOG_SUPPORT |
655 | fprintf(stdout,"PolyNULL()\n"); |
656 | #endif |
faf8bb13 |
657 | } |
658 | |
86aad47b |
659 | /////////////////////////////////////////////////////////////////////////////// |
660 | // Polygon innerloops driver |
030d1121 |
661 | typedef void (*PP)(const gpu_unai_t &gpu_unai, u16 *pDst, u32 count); |
662 | |
663 | // Template instantiation helper macros |
664 | #define TI(cf) gpuPolySpanFn<(cf)> |
665 | #define TN PolyNULL |
666 | #define TIBLOCK(ub) \ |
667 | TI((ub)|0x00), TI((ub)|0x01), TI((ub)|0x02), TI((ub)|0x03), TI((ub)|0x04), TI((ub)|0x05), TI((ub)|0x06), TI((ub)|0x07), \ |
668 | TN, TN, TI((ub)|0x0a), TI((ub)|0x0b), TN, TN, TI((ub)|0x0e), TI((ub)|0x0f), \ |
669 | TN, TN, TI((ub)|0x12), TI((ub)|0x13), TN, TN, TI((ub)|0x16), TI((ub)|0x17), \ |
670 | TN, TN, TI((ub)|0x1a), TI((ub)|0x1b), TN, TN, TI((ub)|0x1e), TI((ub)|0x1f), \ |
671 | TI((ub)|0x20), TI((ub)|0x21), TI((ub)|0x22), TI((ub)|0x23), TI((ub)|0x24), TI((ub)|0x25), TI((ub)|0x26), TI((ub)|0x27), \ |
672 | TN, TN, TI((ub)|0x2a), TI((ub)|0x2b), TN, TN, TI((ub)|0x2e), TI((ub)|0x2f), \ |
673 | TN, TN, TI((ub)|0x32), TI((ub)|0x33), TN, TN, TI((ub)|0x36), TI((ub)|0x37), \ |
674 | TN, TN, TI((ub)|0x3a), TI((ub)|0x3b), TN, TN, TI((ub)|0x3e), TI((ub)|0x3f), \ |
675 | TI((ub)|0x40), TI((ub)|0x41), TI((ub)|0x42), TI((ub)|0x43), TI((ub)|0x44), TI((ub)|0x45), TI((ub)|0x46), TI((ub)|0x47), \ |
676 | TN, TN, TI((ub)|0x4a), TI((ub)|0x4b), TN, TN, TI((ub)|0x4e), TI((ub)|0x4f), \ |
677 | TN, TN, TI((ub)|0x52), TI((ub)|0x53), TN, TN, TI((ub)|0x56), TI((ub)|0x57), \ |
678 | TN, TN, TI((ub)|0x5a), TI((ub)|0x5b), TN, TN, TI((ub)|0x5e), TI((ub)|0x5f), \ |
679 | TI((ub)|0x60), TI((ub)|0x61), TI((ub)|0x62), TI((ub)|0x63), TI((ub)|0x64), TI((ub)|0x65), TI((ub)|0x66), TI((ub)|0x67), \ |
680 | TN, TN, TI((ub)|0x6a), TI((ub)|0x6b), TN, TN, TI((ub)|0x6e), TI((ub)|0x6f), \ |
681 | TN, TN, TI((ub)|0x72), TI((ub)|0x73), TN, TN, TI((ub)|0x76), TI((ub)|0x77), \ |
682 | TN, TN, TI((ub)|0x7a), TI((ub)|0x7b), TN, TN, TI((ub)|0x7e), TI((ub)|0x7f), \ |
683 | TN, TI((ub)|0x81), TN, TI((ub)|0x83), TN, TI((ub)|0x85), TN, TI((ub)|0x87), \ |
684 | TN, TN, TN, TI((ub)|0x8b), TN, TN, TN, TI((ub)|0x8f), \ |
685 | TN, TN, TN, TI((ub)|0x93), TN, TN, TN, TI((ub)|0x97), \ |
686 | TN, TN, TN, TI((ub)|0x9b), TN, TN, TN, TI((ub)|0x9f), \ |
687 | TN, TI((ub)|0xa1), TN, TI((ub)|0xa3), TN, TI((ub)|0xa5), TN, TI((ub)|0xa7), \ |
688 | TN, TN, TN, TI((ub)|0xab), TN, TN, TN, TI((ub)|0xaf), \ |
689 | TN, TN, TN, TI((ub)|0xb3), TN, TN, TN, TI((ub)|0xb7), \ |
690 | TN, TN, TN, TI((ub)|0xbb), TN, TN, TN, TI((ub)|0xbf), \ |
691 | TN, TI((ub)|0xc1), TN, TI((ub)|0xc3), TN, TI((ub)|0xc5), TN, TI((ub)|0xc7), \ |
692 | TN, TN, TN, TI((ub)|0xcb), TN, TN, TN, TI((ub)|0xcf), \ |
693 | TN, TN, TN, TI((ub)|0xd3), TN, TN, TN, TI((ub)|0xd7), \ |
694 | TN, TN, TN, TI((ub)|0xdb), TN, TN, TN, TI((ub)|0xdf), \ |
695 | TN, TI((ub)|0xe1), TN, TI((ub)|0xe3), TN, TI((ub)|0xe5), TN, TI((ub)|0xe7), \ |
696 | TN, TN, TN, TI((ub)|0xeb), TN, TN, TN, TI((ub)|0xef), \ |
697 | TN, TN, TN, TI((ub)|0xf3), TN, TN, TN, TI((ub)|0xf7), \ |
698 | TN, TN, TN, TI((ub)|0xfb), TN, TN, TN, TI((ub)|0xff) |
699 | |
700 | const PP gpuPolySpanDrivers[2048] = { |
701 | TIBLOCK(0<<8), TIBLOCK(1<<8), TIBLOCK(2<<8), TIBLOCK(3<<8), |
702 | TIBLOCK(4<<8), TIBLOCK(5<<8), TIBLOCK(6<<8), TIBLOCK(7<<8) |
86aad47b |
703 | }; |
030d1121 |
704 | |
705 | #undef TI |
706 | #undef TN |
707 | #undef TIBLOCK |