Commit | Line | Data |
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ef79bbde P |
1 | /*************************************************************************** |
2 | gpu.c - description | |
3 | ------------------- | |
4 | begin : Sun Oct 28 2001 | |
5 | copyright : (C) 2001 by Pete Bernert | |
6 | email : BlackDove@addcom.de | |
7 | ***************************************************************************/ | |
8 | /*************************************************************************** | |
9 | * * | |
10 | * This program is free software; you can redistribute it and/or modify * | |
11 | * it under the terms of the GNU General Public License as published by * | |
12 | * the Free Software Foundation; either version 2 of the License, or * | |
13 | * (at your option) any later version. See also the license.txt file for * | |
14 | * additional informations. * | |
15 | * * | |
16 | ***************************************************************************/ | |
17 | ||
ef79bbde | 18 | #include "gpu.h" |
ef79bbde P |
19 | #include "stdint.h" |
20 | #include "psemu_plugin_defs.h" | |
ef79bbde P |
21 | |
22 | //////////////////////////////////////////////////////////////////////// | |
23 | // memory image of the PSX vram | |
24 | //////////////////////////////////////////////////////////////////////// | |
25 | ||
ef79bbde P |
26 | unsigned char *psxVub; |
27 | signed char *psxVsb; | |
28 | unsigned short *psxVuw; | |
29 | unsigned short *psxVuw_eom; | |
30 | signed short *psxVsw; | |
a96a5eb2 | 31 | uint32_t *psxVul; |
ef79bbde P |
32 | int32_t *psxVsl; |
33 | ||
34 | //////////////////////////////////////////////////////////////////////// | |
35 | // GPU globals | |
36 | //////////////////////////////////////////////////////////////////////// | |
37 | ||
38 | static long lGPUdataRet; | |
39 | long lGPUstatusRet; | |
a96a5eb2 | 40 | uint32_t ulStatusControl[256]; |
ef79bbde P |
41 | |
42 | static uint32_t gpuDataM[256]; | |
43 | static unsigned char gpuCommand = 0; | |
44 | static long gpuDataC = 0; | |
45 | static long gpuDataP = 0; | |
46 | ||
47 | VRAMLoad_t VRAMWrite; | |
48 | VRAMLoad_t VRAMRead; | |
49 | DATAREGISTERMODES DataWriteMode; | |
50 | DATAREGISTERMODES DataReadMode; | |
51 | ||
52 | BOOL bSkipNextFrame = FALSE; | |
79f58413 | 53 | BOOL fskip_frameReady; |
54 | DWORD lace_count_since_flip; | |
ef79bbde | 55 | DWORD dwLaceCnt=0; |
ef79bbde P |
56 | short sDispWidths[8] = {256,320,512,640,368,384,512,640}; |
57 | PSXDisplay_t PSXDisplay; | |
58 | PSXDisplay_t PreviousPSXDisplay; | |
59 | long lSelectedSlot=0; | |
ef79bbde P |
60 | BOOL bDoLazyUpdate=FALSE; |
61 | uint32_t lGPUInfoVals[16]; | |
62 | static int iFakePrimBusy=0; | |
2588a938 | 63 | static uint32_t vBlank=0; |
e64dc4c5 | 64 | static const int *skip_advice; |
ef79bbde P |
65 | |
66 | //////////////////////////////////////////////////////////////////////// | |
67 | // some misc external display funcs | |
68 | //////////////////////////////////////////////////////////////////////// | |
69 | ||
70 | #include <time.h> | |
ef79bbde | 71 | |
a96a5eb2 | 72 | // FPS library |
73 | #include "fps.c" | |
ef79bbde | 74 | |
ef79bbde P |
75 | |
76 | //////////////////////////////////////////////////////////////////////// | |
a96a5eb2 | 77 | // sets all kind of act fixes |
ef79bbde P |
78 | //////////////////////////////////////////////////////////////////////// |
79 | ||
a96a5eb2 | 80 | static void SetFixes(void) |
81 | { | |
82 | if(dwActFixes&0x02) sDispWidths[4]=384; | |
83 | else sDispWidths[4]=368; | |
84 | } | |
ef79bbde P |
85 | |
86 | //////////////////////////////////////////////////////////////////////// | |
87 | // INIT, will be called after lib load... well, just do some var init... | |
88 | //////////////////////////////////////////////////////////////////////// | |
89 | ||
55b0eeea | 90 | // one extra MB for soft drawing funcs security |
91 | static unsigned char vram[1024*512*2 + 1024*1024] __attribute__((aligned(2048))); | |
92 | ||
a96a5eb2 | 93 | long CALLBACK GPUinit(void) // GPU INIT |
ef79bbde P |
94 | { |
95 | memset(ulStatusControl,0,256*sizeof(uint32_t)); // init save state scontrol field | |
96 | ||
ef79bbde | 97 | //!!! ATTENTION !!! |
55b0eeea | 98 | psxVub=vram + 512 * 1024; // security offset into double sized psx vram! |
ef79bbde P |
99 | |
100 | psxVsb=(signed char *)psxVub; // different ways of accessing PSX VRAM | |
101 | psxVsw=(signed short *)psxVub; | |
102 | psxVsl=(int32_t *)psxVub; | |
103 | psxVuw=(unsigned short *)psxVub; | |
104 | psxVul=(uint32_t *)psxVub; | |
105 | ||
a96a5eb2 | 106 | psxVuw_eom=psxVuw+1024*512; // pre-calc of end of vram |
ef79bbde | 107 | |
55b0eeea | 108 | memset(vram,0x00,(512*2)*1024 + (1024*1024)); |
ef79bbde P |
109 | memset(lGPUInfoVals,0x00,16*sizeof(uint32_t)); |
110 | ||
ef79bbde P |
111 | PSXDisplay.RGB24 = FALSE; // init some stuff |
112 | PSXDisplay.Interlaced = FALSE; | |
113 | PSXDisplay.DrawOffset.x = 0; | |
114 | PSXDisplay.DrawOffset.y = 0; | |
115 | PSXDisplay.DisplayMode.x= 320; | |
116 | PSXDisplay.DisplayMode.y= 240; | |
117 | PreviousPSXDisplay.DisplayMode.x= 320; | |
118 | PreviousPSXDisplay.DisplayMode.y= 240; | |
119 | PSXDisplay.Disabled = FALSE; | |
120 | PreviousPSXDisplay.Range.x0 =0; | |
121 | PreviousPSXDisplay.Range.y0 =0; | |
122 | PSXDisplay.Range.x0=0; | |
123 | PSXDisplay.Range.x1=0; | |
124 | PreviousPSXDisplay.DisplayModeNew.y=0; | |
125 | PSXDisplay.Double = 1; | |
126 | lGPUdataRet = 0x400; | |
127 | ||
128 | DataWriteMode = DR_NORMAL; | |
129 | ||
130 | // Reset transfer values, to prevent mis-transfer of data | |
131 | memset(&VRAMWrite, 0, sizeof(VRAMLoad_t)); | |
132 | memset(&VRAMRead, 0, sizeof(VRAMLoad_t)); | |
133 | ||
134 | // device initialised already ! | |
135 | lGPUstatusRet = 0x14802000; | |
136 | GPUIsIdle; | |
137 | GPUIsReadyForCommands; | |
138 | bDoVSyncUpdate = TRUE; | |
139 | ||
140 | return 0; | |
141 | } | |
142 | ||
143 | //////////////////////////////////////////////////////////////////////// | |
144 | // Here starts all... | |
145 | //////////////////////////////////////////////////////////////////////// | |
146 | ||
147 | ||
148 | long GPUopen(unsigned long * disp,char * CapText,char * CfgFile) | |
149 | { | |
150 | unsigned long d; | |
a96a5eb2 | 151 | |
152 | SetFixes(); | |
ef79bbde P |
153 | |
154 | InitFPS(); | |
155 | ||
ef79bbde P |
156 | bDoVSyncUpdate = TRUE; |
157 | ||
158 | d=ulInitDisplay(); // setup x | |
159 | ||
160 | if(disp) | |
161 | *disp=d; // wanna x pointer? ok | |
162 | ||
163 | if(d) return 0; | |
164 | return -1; | |
165 | } | |
166 | ||
167 | ||
168 | //////////////////////////////////////////////////////////////////////// | |
169 | // time to leave... | |
170 | //////////////////////////////////////////////////////////////////////// | |
171 | ||
172 | long CALLBACK GPUclose() // GPU CLOSE | |
173 | { | |
ef79bbde P |
174 | CloseDisplay(); // shutdown direct draw |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | //////////////////////////////////////////////////////////////////////// | |
180 | // I shot the sheriff | |
181 | //////////////////////////////////////////////////////////////////////// | |
182 | ||
a96a5eb2 | 183 | long CALLBACK GPUshutdown(void) // GPU SHUTDOWN |
ef79bbde | 184 | { |
a96a5eb2 | 185 | CloseDisplay(); // shutdown direct draw |
ef79bbde P |
186 | return 0; // nothinh to do |
187 | } | |
188 | ||
189 | //////////////////////////////////////////////////////////////////////// | |
190 | // Update display (swap buffers) | |
191 | //////////////////////////////////////////////////////////////////////// | |
192 | ||
a96a5eb2 | 193 | static void updateDisplay(void) // UPDATE DISPLAY |
ef79bbde P |
194 | { |
195 | if(PSXDisplay.Disabled) // disable? | |
196 | { | |
ef79bbde P |
197 | return; // -> and bye |
198 | } | |
199 | ||
200 | if(dwActFixes&32) // pc fps calculation fix | |
201 | { | |
202 | if(UseFrameLimit) PCFrameCap(); // -> brake | |
a96a5eb2 | 203 | if(UseFrameSkip) PCcalcfps(); |
ef79bbde P |
204 | } |
205 | ||
206 | if(UseFrameSkip) // skip ? | |
207 | { | |
79f58413 | 208 | if(fskip_frameReady) |
ef79bbde | 209 | { |
79f58413 | 210 | DoBufferSwap(); // -> to skip or not to skip |
211 | fskip_frameReady=FALSE; | |
212 | bDoVSyncUpdate=FALSE; // vsync done | |
ef79bbde | 213 | } |
ef79bbde P |
214 | } |
215 | else // no skip ? | |
216 | { | |
0d8f5b89 | 217 | bSkipNextFrame = FALSE; |
ef79bbde | 218 | DoBufferSwap(); // -> swap |
79f58413 | 219 | bDoVSyncUpdate=FALSE; // vsync done |
ef79bbde | 220 | } |
79f58413 | 221 | } |
222 | ||
223 | static void decideSkip(void) | |
224 | { | |
225 | if(!bDoVSyncUpdate) | |
226 | return; | |
227 | ||
228 | lace_count_since_flip=0; | |
229 | fskip_frameReady=!bSkipNextFrame; | |
f1bad6e1 | 230 | |
79f58413 | 231 | if(dwActFixes&0xa0) // -> pc fps calculation fix/old skipping fix |
232 | { | |
ea4a16e7 | 233 | int skip = (skip_advice && *skip_advice) || UseFrameSkip == 1 || fps_skip < fFrameRateHz; |
e64dc4c5 | 234 | if(skip && !bSkipNextFrame) // -> skip max one in a row |
79f58413 | 235 | {bSkipNextFrame = TRUE; fps_skip=fFrameRateHz;} |
236 | else bSkipNextFrame = FALSE; | |
237 | } | |
238 | else FrameSkip(); | |
ef79bbde P |
239 | } |
240 | ||
241 | //////////////////////////////////////////////////////////////////////// | |
242 | // roughly emulated screen centering bits... not complete !!! | |
243 | //////////////////////////////////////////////////////////////////////// | |
244 | ||
245 | void ChangeDispOffsetsX(void) // X CENTER | |
246 | { | |
247 | long lx,l; | |
248 | ||
249 | if(!PSXDisplay.Range.x1) return; | |
250 | ||
251 | l=PreviousPSXDisplay.DisplayMode.x; | |
252 | ||
253 | l*=(long)PSXDisplay.Range.x1; | |
254 | l/=2560;lx=l;l&=0xfffffff8; | |
255 | ||
256 | if(l==PreviousPSXDisplay.Range.y1) return; // abusing range.y1 for | |
257 | PreviousPSXDisplay.Range.y1=(short)l; // storing last x range and test | |
258 | ||
259 | if(lx>=PreviousPSXDisplay.DisplayMode.x) | |
260 | { | |
261 | PreviousPSXDisplay.Range.x1= | |
262 | (short)PreviousPSXDisplay.DisplayMode.x; | |
263 | PreviousPSXDisplay.Range.x0=0; | |
264 | } | |
265 | else | |
266 | { | |
267 | PreviousPSXDisplay.Range.x1=(short)l; | |
268 | ||
269 | PreviousPSXDisplay.Range.x0= | |
270 | (PSXDisplay.Range.x0-500)/8; | |
271 | ||
272 | if(PreviousPSXDisplay.Range.x0<0) | |
273 | PreviousPSXDisplay.Range.x0=0; | |
274 | ||
275 | if((PreviousPSXDisplay.Range.x0+lx)> | |
276 | PreviousPSXDisplay.DisplayMode.x) | |
277 | { | |
278 | PreviousPSXDisplay.Range.x0= | |
279 | (short)(PreviousPSXDisplay.DisplayMode.x-lx); | |
280 | PreviousPSXDisplay.Range.x0+=2; //??? | |
281 | ||
282 | PreviousPSXDisplay.Range.x1+=(short)(lx-l); | |
283 | ||
284 | PreviousPSXDisplay.Range.x1-=2; // makes linux stretching easier | |
285 | ||
286 | } | |
287 | ||
ef79bbde P |
288 | // some linux alignment security |
289 | PreviousPSXDisplay.Range.x0=PreviousPSXDisplay.Range.x0>>1; | |
290 | PreviousPSXDisplay.Range.x0=PreviousPSXDisplay.Range.x0<<1; | |
291 | PreviousPSXDisplay.Range.x1=PreviousPSXDisplay.Range.x1>>1; | |
292 | PreviousPSXDisplay.Range.x1=PreviousPSXDisplay.Range.x1<<1; | |
293 | ||
ef79bbde P |
294 | DoClearScreenBuffer(); |
295 | } | |
296 | ||
297 | bDoVSyncUpdate=TRUE; | |
298 | } | |
299 | ||
300 | //////////////////////////////////////////////////////////////////////// | |
301 | ||
302 | void ChangeDispOffsetsY(void) // Y CENTER | |
303 | { | |
304 | int iT,iO=PreviousPSXDisplay.Range.y0; | |
305 | int iOldYOffset=PreviousPSXDisplay.DisplayModeNew.y; | |
306 | ||
307 | // new | |
308 | ||
a96a5eb2 | 309 | if((PreviousPSXDisplay.DisplayModeNew.x+PSXDisplay.DisplayModeNew.y)>512) |
ef79bbde | 310 | { |
a96a5eb2 | 311 | int dy1=512-PreviousPSXDisplay.DisplayModeNew.x; |
312 | int dy2=(PreviousPSXDisplay.DisplayModeNew.x+PSXDisplay.DisplayModeNew.y)-512; | |
ef79bbde P |
313 | |
314 | if(dy1>=dy2) | |
315 | { | |
316 | PreviousPSXDisplay.DisplayModeNew.y=-dy2; | |
317 | } | |
318 | else | |
319 | { | |
320 | PSXDisplay.DisplayPosition.y=0; | |
321 | PreviousPSXDisplay.DisplayModeNew.y=-dy1; | |
322 | } | |
323 | } | |
324 | else PreviousPSXDisplay.DisplayModeNew.y=0; | |
325 | ||
326 | // eon | |
327 | ||
328 | if(PreviousPSXDisplay.DisplayModeNew.y!=iOldYOffset) // if old offset!=new offset: recalc height | |
329 | { | |
330 | PSXDisplay.Height = PSXDisplay.Range.y1 - | |
331 | PSXDisplay.Range.y0 + | |
332 | PreviousPSXDisplay.DisplayModeNew.y; | |
333 | PSXDisplay.DisplayModeNew.y=PSXDisplay.Height*PSXDisplay.Double; | |
334 | } | |
335 | ||
336 | // | |
337 | ||
338 | if(PSXDisplay.PAL) iT=48; else iT=28; | |
339 | ||
340 | if(PSXDisplay.Range.y0>=iT) | |
341 | { | |
342 | PreviousPSXDisplay.Range.y0= | |
343 | (short)((PSXDisplay.Range.y0-iT-4)*PSXDisplay.Double); | |
344 | if(PreviousPSXDisplay.Range.y0<0) | |
345 | PreviousPSXDisplay.Range.y0=0; | |
346 | PSXDisplay.DisplayModeNew.y+= | |
347 | PreviousPSXDisplay.Range.y0; | |
348 | } | |
349 | else | |
350 | PreviousPSXDisplay.Range.y0=0; | |
351 | ||
352 | if(iO!=PreviousPSXDisplay.Range.y0) | |
353 | { | |
354 | DoClearScreenBuffer(); | |
355 | } | |
356 | } | |
357 | ||
358 | //////////////////////////////////////////////////////////////////////// | |
359 | // check if update needed | |
360 | //////////////////////////////////////////////////////////////////////// | |
361 | ||
a96a5eb2 | 362 | static void updateDisplayIfChanged(void) // UPDATE DISPLAY IF CHANGED |
ef79bbde P |
363 | { |
364 | if ((PSXDisplay.DisplayMode.y == PSXDisplay.DisplayModeNew.y) && | |
365 | (PSXDisplay.DisplayMode.x == PSXDisplay.DisplayModeNew.x)) | |
366 | { | |
367 | if((PSXDisplay.RGB24 == PSXDisplay.RGB24New) && | |
368 | (PSXDisplay.Interlaced == PSXDisplay.InterlacedNew)) return; | |
369 | } | |
370 | ||
371 | PSXDisplay.RGB24 = PSXDisplay.RGB24New; // get new infos | |
372 | ||
373 | PSXDisplay.DisplayMode.y = PSXDisplay.DisplayModeNew.y; | |
374 | PSXDisplay.DisplayMode.x = PSXDisplay.DisplayModeNew.x; | |
375 | PreviousPSXDisplay.DisplayMode.x= // previous will hold | |
376 | min(640,PSXDisplay.DisplayMode.x); // max 640x512... that's | |
377 | PreviousPSXDisplay.DisplayMode.y= // the size of my | |
378 | min(512,PSXDisplay.DisplayMode.y); // back buffer surface | |
379 | PSXDisplay.Interlaced = PSXDisplay.InterlacedNew; | |
380 | ||
381 | PSXDisplay.DisplayEnd.x= // calc end of display | |
382 | PSXDisplay.DisplayPosition.x+ PSXDisplay.DisplayMode.x; | |
383 | PSXDisplay.DisplayEnd.y= | |
384 | PSXDisplay.DisplayPosition.y+ PSXDisplay.DisplayMode.y+PreviousPSXDisplay.DisplayModeNew.y; | |
385 | PreviousPSXDisplay.DisplayEnd.x= | |
386 | PreviousPSXDisplay.DisplayPosition.x+ PSXDisplay.DisplayMode.x; | |
387 | PreviousPSXDisplay.DisplayEnd.y= | |
388 | PreviousPSXDisplay.DisplayPosition.y+ PSXDisplay.DisplayMode.y+PreviousPSXDisplay.DisplayModeNew.y; | |
389 | ||
390 | ChangeDispOffsetsX(); | |
391 | ||
392 | if(iFrameLimit==2) SetAutoFrameCap(); // -> set it | |
393 | ||
79f58413 | 394 | if(UseFrameSkip) decideSkip(); // stupid stuff when frame skipping enabled |
ef79bbde P |
395 | } |
396 | ||
ef79bbde P |
397 | //////////////////////////////////////////////////////////////////////// |
398 | // update lace is called evry VSync | |
399 | //////////////////////////////////////////////////////////////////////// | |
400 | ||
401 | void CALLBACK GPUupdateLace(void) // VSYNC | |
402 | { | |
2588a938 | 403 | //if(!(dwActFixes&1)) |
404 | // lGPUstatusRet^=0x80000000; // odd/even bit | |
ef79bbde | 405 | |
dc40e780 | 406 | //pcsx-rearmed: removed, this is handled by core |
72228559 | 407 | //if(!(dwActFixes&32)) // std fps limitation? |
408 | // CheckFrameRate(); | |
ef79bbde P |
409 | |
410 | if(PSXDisplay.Interlaced) // interlaced mode? | |
411 | { | |
2588a938 | 412 | lGPUstatusRet^=0x80000000; // odd/even bit? |
413 | ||
ef79bbde P |
414 | if(bDoVSyncUpdate && PSXDisplay.DisplayMode.x>0 && PSXDisplay.DisplayMode.y>0) |
415 | { | |
416 | updateDisplay(); | |
417 | } | |
418 | } | |
419 | else // non-interlaced? | |
420 | { | |
421 | if(dwActFixes&64) // lazy screen update fix | |
422 | { | |
79f58413 | 423 | if(bDoLazyUpdate) |
ef79bbde P |
424 | updateDisplay(); |
425 | bDoLazyUpdate=FALSE; | |
426 | } | |
427 | else | |
428 | { | |
79f58413 | 429 | if(bDoVSyncUpdate) // some primitives drawn? |
f1bad6e1 | 430 | updateDisplay(); // -> update display |
ef79bbde P |
431 | } |
432 | } | |
f1bad6e1 | 433 | |
79f58413 | 434 | if(UseFrameSkip) { // frame over-skip guard |
435 | lace_count_since_flip++; | |
436 | if(lace_count_since_flip > 8) { | |
437 | bSkipNextFrame=FALSE; | |
438 | fskip_frameReady=TRUE; | |
439 | } | |
440 | } | |
ef79bbde P |
441 | } |
442 | ||
443 | //////////////////////////////////////////////////////////////////////// | |
444 | // process read request from GPU status register | |
445 | //////////////////////////////////////////////////////////////////////// | |
446 | ||
447 | ||
448 | uint32_t CALLBACK GPUreadStatus(void) // READ STATUS | |
449 | { | |
450 | if(dwActFixes&1) | |
451 | { | |
452 | static int iNumRead=0; // odd/even hack | |
453 | if((iNumRead++)==2) | |
454 | { | |
455 | iNumRead=0; | |
456 | lGPUstatusRet^=0x80000000; // interlaced bit toggle... we do it on every 3 read status... needed by some games (like ChronoCross) with old epsxe versions (1.5.2 and older) | |
457 | } | |
458 | } | |
459 | ||
460 | if(iFakePrimBusy) // 27.10.2007 - PETE : emulating some 'busy' while drawing... pfff | |
461 | { | |
462 | iFakePrimBusy--; | |
463 | ||
464 | if(iFakePrimBusy&1) // we do a busy-idle-busy-idle sequence after/while drawing prims | |
465 | { | |
466 | GPUIsBusy; | |
467 | GPUIsNotReadyForCommands; | |
468 | } | |
469 | else | |
470 | { | |
471 | GPUIsIdle; | |
472 | GPUIsReadyForCommands; | |
473 | } | |
474 | } | |
2588a938 | 475 | return lGPUstatusRet | vBlank; |
ef79bbde P |
476 | } |
477 | ||
478 | //////////////////////////////////////////////////////////////////////// | |
479 | // processes data send to GPU status register | |
480 | // these are always single packet commands. | |
481 | //////////////////////////////////////////////////////////////////////// | |
482 | ||
483 | void CALLBACK GPUwriteStatus(uint32_t gdata) // WRITE STATUS | |
484 | { | |
485 | uint32_t lCommand=(gdata>>24)&0xff; | |
486 | ||
487 | ulStatusControl[lCommand]=gdata; // store command for freezing | |
488 | ||
489 | switch(lCommand) | |
490 | { | |
491 | //--------------------------------------------------// | |
492 | // reset gpu | |
493 | case 0x00: | |
494 | memset(lGPUInfoVals,0x00,16*sizeof(uint32_t)); | |
495 | lGPUstatusRet=0x14802000; | |
496 | PSXDisplay.Disabled=1; | |
497 | DataWriteMode=DataReadMode=DR_NORMAL; | |
498 | PSXDisplay.DrawOffset.x=PSXDisplay.DrawOffset.y=0; | |
499 | drawX=drawY=0;drawW=drawH=0; | |
500 | sSetMask=0;lSetMask=0;bCheckMask=FALSE; | |
501 | usMirror=0; | |
502 | GlobalTextAddrX=0;GlobalTextAddrY=0; | |
503 | GlobalTextTP=0;GlobalTextABR=0; | |
504 | PSXDisplay.RGB24=FALSE; | |
505 | PSXDisplay.Interlaced=FALSE; | |
506 | bUsingTWin = FALSE; | |
507 | return; | |
508 | //--------------------------------------------------// | |
509 | // dis/enable display | |
510 | case 0x03: | |
511 | ||
512 | PreviousPSXDisplay.Disabled = PSXDisplay.Disabled; | |
513 | PSXDisplay.Disabled = (gdata & 1); | |
514 | ||
515 | if(PSXDisplay.Disabled) | |
516 | lGPUstatusRet|=GPUSTATUS_DISPLAYDISABLED; | |
517 | else lGPUstatusRet&=~GPUSTATUS_DISPLAYDISABLED; | |
518 | return; | |
519 | ||
520 | //--------------------------------------------------// | |
521 | // setting transfer mode | |
522 | case 0x04: | |
523 | gdata &= 0x03; // Only want the lower two bits | |
524 | ||
525 | DataWriteMode=DataReadMode=DR_NORMAL; | |
526 | if(gdata==0x02) DataWriteMode=DR_VRAMTRANSFER; | |
527 | if(gdata==0x03) DataReadMode =DR_VRAMTRANSFER; | |
528 | lGPUstatusRet&=~GPUSTATUS_DMABITS; // Clear the current settings of the DMA bits | |
529 | lGPUstatusRet|=(gdata << 29); // Set the DMA bits according to the received data | |
530 | ||
531 | return; | |
532 | //--------------------------------------------------// | |
533 | // setting display position | |
534 | case 0x05: | |
535 | { | |
536 | PreviousPSXDisplay.DisplayPosition.x = PSXDisplay.DisplayPosition.x; | |
537 | PreviousPSXDisplay.DisplayPosition.y = PSXDisplay.DisplayPosition.y; | |
538 | ||
ef79bbde | 539 | // new |
a96a5eb2 | 540 | PSXDisplay.DisplayPosition.y = (short)((gdata>>10)&0x1ff); |
ef79bbde P |
541 | |
542 | // store the same val in some helper var, we need it on later compares | |
543 | PreviousPSXDisplay.DisplayModeNew.x=PSXDisplay.DisplayPosition.y; | |
544 | ||
a96a5eb2 | 545 | if((PSXDisplay.DisplayPosition.y+PSXDisplay.DisplayMode.y)>512) |
ef79bbde | 546 | { |
a96a5eb2 | 547 | int dy1=512-PSXDisplay.DisplayPosition.y; |
548 | int dy2=(PSXDisplay.DisplayPosition.y+PSXDisplay.DisplayMode.y)-512; | |
ef79bbde P |
549 | |
550 | if(dy1>=dy2) | |
551 | { | |
552 | PreviousPSXDisplay.DisplayModeNew.y=-dy2; | |
553 | } | |
554 | else | |
555 | { | |
556 | PSXDisplay.DisplayPosition.y=0; | |
557 | PreviousPSXDisplay.DisplayModeNew.y=-dy1; | |
558 | } | |
559 | } | |
560 | else PreviousPSXDisplay.DisplayModeNew.y=0; | |
561 | // eon | |
562 | ||
563 | PSXDisplay.DisplayPosition.x = (short)(gdata & 0x3ff); | |
564 | PSXDisplay.DisplayEnd.x= | |
565 | PSXDisplay.DisplayPosition.x+ PSXDisplay.DisplayMode.x; | |
566 | PSXDisplay.DisplayEnd.y= | |
567 | PSXDisplay.DisplayPosition.y+ PSXDisplay.DisplayMode.y + PreviousPSXDisplay.DisplayModeNew.y; | |
568 | PreviousPSXDisplay.DisplayEnd.x= | |
569 | PreviousPSXDisplay.DisplayPosition.x+ PSXDisplay.DisplayMode.x; | |
570 | PreviousPSXDisplay.DisplayEnd.y= | |
571 | PreviousPSXDisplay.DisplayPosition.y+ PSXDisplay.DisplayMode.y + PreviousPSXDisplay.DisplayModeNew.y; | |
572 | ||
573 | bDoVSyncUpdate=TRUE; | |
574 | ||
575 | if (!(PSXDisplay.Interlaced)) // stupid frame skipping option | |
576 | { | |
ef79bbde P |
577 | if(dwActFixes&64) bDoLazyUpdate=TRUE; |
578 | } | |
4215cb1f | 579 | if(UseFrameSkip) decideSkip(); |
ef79bbde P |
580 | }return; |
581 | //--------------------------------------------------// | |
582 | // setting width | |
583 | case 0x06: | |
584 | ||
585 | PSXDisplay.Range.x0=(short)(gdata & 0x7ff); | |
586 | PSXDisplay.Range.x1=(short)((gdata>>12) & 0xfff); | |
587 | ||
588 | PSXDisplay.Range.x1-=PSXDisplay.Range.x0; | |
589 | ||
590 | ChangeDispOffsetsX(); | |
591 | ||
592 | return; | |
593 | //--------------------------------------------------// | |
594 | // setting height | |
595 | case 0x07: | |
596 | { | |
597 | ||
598 | PSXDisplay.Range.y0=(short)(gdata & 0x3ff); | |
599 | PSXDisplay.Range.y1=(short)((gdata>>10) & 0x3ff); | |
600 | ||
601 | PreviousPSXDisplay.Height = PSXDisplay.Height; | |
602 | ||
603 | PSXDisplay.Height = PSXDisplay.Range.y1 - | |
604 | PSXDisplay.Range.y0 + | |
605 | PreviousPSXDisplay.DisplayModeNew.y; | |
606 | ||
607 | if(PreviousPSXDisplay.Height!=PSXDisplay.Height) | |
608 | { | |
609 | PSXDisplay.DisplayModeNew.y=PSXDisplay.Height*PSXDisplay.Double; | |
610 | ||
611 | ChangeDispOffsetsY(); | |
612 | ||
613 | updateDisplayIfChanged(); | |
614 | } | |
615 | return; | |
616 | } | |
617 | //--------------------------------------------------// | |
618 | // setting display infos | |
619 | case 0x08: | |
620 | ||
621 | PSXDisplay.DisplayModeNew.x = | |
622 | sDispWidths[(gdata & 0x03) | ((gdata & 0x40) >> 4)]; | |
623 | ||
624 | if (gdata&0x04) PSXDisplay.Double=2; | |
625 | else PSXDisplay.Double=1; | |
626 | ||
627 | PSXDisplay.DisplayModeNew.y = PSXDisplay.Height*PSXDisplay.Double; | |
628 | ||
629 | ChangeDispOffsetsY(); | |
630 | ||
631 | PSXDisplay.PAL = (gdata & 0x08)?TRUE:FALSE; // if 1 - PAL mode, else NTSC | |
632 | PSXDisplay.RGB24New = (gdata & 0x10)?TRUE:FALSE; // if 1 - TrueColor | |
633 | PSXDisplay.InterlacedNew = (gdata & 0x20)?TRUE:FALSE; // if 1 - Interlace | |
634 | ||
635 | lGPUstatusRet&=~GPUSTATUS_WIDTHBITS; // Clear the width bits | |
636 | lGPUstatusRet|= | |
637 | (((gdata & 0x03) << 17) | | |
638 | ((gdata & 0x40) << 10)); // Set the width bits | |
639 | ||
640 | if(PSXDisplay.InterlacedNew) | |
641 | { | |
642 | if(!PSXDisplay.Interlaced) | |
643 | { | |
644 | PreviousPSXDisplay.DisplayPosition.x = PSXDisplay.DisplayPosition.x; | |
645 | PreviousPSXDisplay.DisplayPosition.y = PSXDisplay.DisplayPosition.y; | |
646 | } | |
647 | lGPUstatusRet|=GPUSTATUS_INTERLACED; | |
648 | } | |
9f21ebfe | 649 | else lGPUstatusRet&=~(GPUSTATUS_INTERLACED|0x80000000); |
ef79bbde P |
650 | |
651 | if (PSXDisplay.PAL) | |
652 | lGPUstatusRet|=GPUSTATUS_PAL; | |
653 | else lGPUstatusRet&=~GPUSTATUS_PAL; | |
654 | ||
655 | if (PSXDisplay.Double==2) | |
656 | lGPUstatusRet|=GPUSTATUS_DOUBLEHEIGHT; | |
657 | else lGPUstatusRet&=~GPUSTATUS_DOUBLEHEIGHT; | |
658 | ||
659 | if (PSXDisplay.RGB24New) | |
660 | lGPUstatusRet|=GPUSTATUS_RGB24; | |
661 | else lGPUstatusRet&=~GPUSTATUS_RGB24; | |
662 | ||
663 | updateDisplayIfChanged(); | |
664 | ||
665 | return; | |
666 | //--------------------------------------------------// | |
667 | // ask about GPU version and other stuff | |
668 | case 0x10: | |
669 | ||
670 | gdata&=0xff; | |
671 | ||
672 | switch(gdata) | |
673 | { | |
674 | case 0x02: | |
675 | lGPUdataRet=lGPUInfoVals[INFO_TW]; // tw infos | |
676 | return; | |
677 | case 0x03: | |
678 | lGPUdataRet=lGPUInfoVals[INFO_DRAWSTART]; // draw start | |
679 | return; | |
680 | case 0x04: | |
681 | lGPUdataRet=lGPUInfoVals[INFO_DRAWEND]; // draw end | |
682 | return; | |
683 | case 0x05: | |
684 | case 0x06: | |
685 | lGPUdataRet=lGPUInfoVals[INFO_DRAWOFF]; // draw offset | |
686 | return; | |
687 | case 0x07: | |
a96a5eb2 | 688 | lGPUdataRet=0x02; // gpu type |
ef79bbde P |
689 | return; |
690 | case 0x08: | |
691 | case 0x0F: // some bios addr? | |
692 | lGPUdataRet=0xBFC03720; | |
693 | return; | |
694 | } | |
695 | return; | |
696 | //--------------------------------------------------// | |
697 | } | |
698 | } | |
699 | ||
700 | //////////////////////////////////////////////////////////////////////// | |
701 | // vram read/write helpers, needed by LEWPY's optimized vram read/write :) | |
702 | //////////////////////////////////////////////////////////////////////// | |
703 | ||
a96a5eb2 | 704 | static inline void FinishedVRAMWrite(void) |
ef79bbde | 705 | { |
ef79bbde P |
706 | // Set register to NORMAL operation |
707 | DataWriteMode = DR_NORMAL; | |
708 | // Reset transfer values, to prevent mis-transfer of data | |
709 | VRAMWrite.x = 0; | |
710 | VRAMWrite.y = 0; | |
711 | VRAMWrite.Width = 0; | |
712 | VRAMWrite.Height = 0; | |
713 | VRAMWrite.ColsRemaining = 0; | |
714 | VRAMWrite.RowsRemaining = 0; | |
715 | } | |
716 | ||
a96a5eb2 | 717 | static inline void FinishedVRAMRead(void) |
ef79bbde P |
718 | { |
719 | // Set register to NORMAL operation | |
720 | DataReadMode = DR_NORMAL; | |
721 | // Reset transfer values, to prevent mis-transfer of data | |
722 | VRAMRead.x = 0; | |
723 | VRAMRead.y = 0; | |
724 | VRAMRead.Width = 0; | |
725 | VRAMRead.Height = 0; | |
726 | VRAMRead.ColsRemaining = 0; | |
727 | VRAMRead.RowsRemaining = 0; | |
728 | ||
729 | // Indicate GPU is no longer ready for VRAM data in the STATUS REGISTER | |
730 | lGPUstatusRet&=~GPUSTATUS_READYFORVRAM; | |
731 | } | |
732 | ||
733 | //////////////////////////////////////////////////////////////////////// | |
734 | // core read from vram | |
735 | //////////////////////////////////////////////////////////////////////// | |
736 | ||
737 | void CALLBACK GPUreadDataMem(uint32_t * pMem, int iSize) | |
738 | { | |
739 | int i; | |
740 | ||
741 | if(DataReadMode!=DR_VRAMTRANSFER) return; | |
742 | ||
743 | GPUIsBusy; | |
744 | ||
745 | // adjust read ptr, if necessary | |
746 | while(VRAMRead.ImagePtr>=psxVuw_eom) | |
a96a5eb2 | 747 | VRAMRead.ImagePtr-=512*1024; |
ef79bbde | 748 | while(VRAMRead.ImagePtr<psxVuw) |
a96a5eb2 | 749 | VRAMRead.ImagePtr+=512*1024; |
ef79bbde P |
750 | |
751 | for(i=0;i<iSize;i++) | |
752 | { | |
753 | // do 2 seperate 16bit reads for compatibility (wrap issues) | |
754 | if ((VRAMRead.ColsRemaining > 0) && (VRAMRead.RowsRemaining > 0)) | |
755 | { | |
756 | // lower 16 bit | |
757 | lGPUdataRet=(uint32_t)GETLE16(VRAMRead.ImagePtr); | |
758 | ||
759 | VRAMRead.ImagePtr++; | |
a96a5eb2 | 760 | if(VRAMRead.ImagePtr>=psxVuw_eom) VRAMRead.ImagePtr-=512*1024; |
ef79bbde P |
761 | VRAMRead.RowsRemaining --; |
762 | ||
763 | if(VRAMRead.RowsRemaining<=0) | |
764 | { | |
765 | VRAMRead.RowsRemaining = VRAMRead.Width; | |
766 | VRAMRead.ColsRemaining--; | |
767 | VRAMRead.ImagePtr += 1024 - VRAMRead.Width; | |
a96a5eb2 | 768 | if(VRAMRead.ImagePtr>=psxVuw_eom) VRAMRead.ImagePtr-=512*1024; |
ef79bbde P |
769 | } |
770 | ||
771 | // higher 16 bit (always, even if it's an odd width) | |
772 | lGPUdataRet|=(uint32_t)GETLE16(VRAMRead.ImagePtr)<<16; | |
773 | PUTLE32(pMem, lGPUdataRet); pMem++; | |
774 | ||
775 | if(VRAMRead.ColsRemaining <= 0) | |
776 | {FinishedVRAMRead();goto ENDREAD;} | |
777 | ||
778 | VRAMRead.ImagePtr++; | |
a96a5eb2 | 779 | if(VRAMRead.ImagePtr>=psxVuw_eom) VRAMRead.ImagePtr-=512*1024; |
ef79bbde P |
780 | VRAMRead.RowsRemaining--; |
781 | if(VRAMRead.RowsRemaining<=0) | |
782 | { | |
783 | VRAMRead.RowsRemaining = VRAMRead.Width; | |
784 | VRAMRead.ColsRemaining--; | |
785 | VRAMRead.ImagePtr += 1024 - VRAMRead.Width; | |
a96a5eb2 | 786 | if(VRAMRead.ImagePtr>=psxVuw_eom) VRAMRead.ImagePtr-=512*1024; |
ef79bbde P |
787 | } |
788 | if(VRAMRead.ColsRemaining <= 0) | |
789 | {FinishedVRAMRead();goto ENDREAD;} | |
790 | } | |
791 | else {FinishedVRAMRead();goto ENDREAD;} | |
792 | } | |
793 | ||
794 | ENDREAD: | |
795 | GPUIsIdle; | |
796 | } | |
797 | ||
798 | ||
799 | //////////////////////////////////////////////////////////////////////// | |
800 | ||
801 | uint32_t CALLBACK GPUreadData(void) | |
802 | { | |
803 | uint32_t l; | |
804 | GPUreadDataMem(&l,1); | |
805 | return lGPUdataRet; | |
806 | } | |
807 | ||
a96a5eb2 | 808 | // Software drawing function |
809 | #include "soft.c" | |
810 | ||
811 | // PSX drawing primitives | |
812 | #include "prim.c" | |
813 | ||
ef79bbde P |
814 | //////////////////////////////////////////////////////////////////////// |
815 | // processes data send to GPU data register | |
816 | // extra table entries for fixing polyline troubles | |
817 | //////////////////////////////////////////////////////////////////////// | |
818 | ||
a96a5eb2 | 819 | static const unsigned char primTableCX[256] = |
ef79bbde P |
820 | { |
821 | // 00 | |
822 | 0,0,3,0,0,0,0,0, | |
823 | // 08 | |
824 | 0,0,0,0,0,0,0,0, | |
825 | // 10 | |
826 | 0,0,0,0,0,0,0,0, | |
827 | // 18 | |
828 | 0,0,0,0,0,0,0,0, | |
829 | // 20 | |
830 | 4,4,4,4,7,7,7,7, | |
831 | // 28 | |
832 | 5,5,5,5,9,9,9,9, | |
833 | // 30 | |
834 | 6,6,6,6,9,9,9,9, | |
835 | // 38 | |
836 | 8,8,8,8,12,12,12,12, | |
837 | // 40 | |
838 | 3,3,3,3,0,0,0,0, | |
839 | // 48 | |
840 | // 5,5,5,5,6,6,6,6, // FLINE | |
841 | 254,254,254,254,254,254,254,254, | |
842 | // 50 | |
843 | 4,4,4,4,0,0,0,0, | |
844 | // 58 | |
845 | // 7,7,7,7,9,9,9,9, // GLINE | |
846 | 255,255,255,255,255,255,255,255, | |
847 | // 60 | |
848 | 3,3,3,3,4,4,4,4, | |
849 | // 68 | |
850 | 2,2,2,2,3,3,3,3, // 3=SPRITE1??? | |
851 | // 70 | |
852 | 2,2,2,2,3,3,3,3, | |
853 | // 78 | |
854 | 2,2,2,2,3,3,3,3, | |
855 | // 80 | |
856 | 4,0,0,0,0,0,0,0, | |
857 | // 88 | |
858 | 0,0,0,0,0,0,0,0, | |
859 | // 90 | |
860 | 0,0,0,0,0,0,0,0, | |
861 | // 98 | |
862 | 0,0,0,0,0,0,0,0, | |
863 | // a0 | |
864 | 3,0,0,0,0,0,0,0, | |
865 | // a8 | |
866 | 0,0,0,0,0,0,0,0, | |
867 | // b0 | |
868 | 0,0,0,0,0,0,0,0, | |
869 | // b8 | |
870 | 0,0,0,0,0,0,0,0, | |
871 | // c0 | |
872 | 3,0,0,0,0,0,0,0, | |
873 | // c8 | |
874 | 0,0,0,0,0,0,0,0, | |
875 | // d0 | |
876 | 0,0,0,0,0,0,0,0, | |
877 | // d8 | |
878 | 0,0,0,0,0,0,0,0, | |
879 | // e0 | |
880 | 0,1,1,1,1,1,1,0, | |
881 | // e8 | |
882 | 0,0,0,0,0,0,0,0, | |
883 | // f0 | |
884 | 0,0,0,0,0,0,0,0, | |
885 | // f8 | |
886 | 0,0,0,0,0,0,0,0 | |
887 | }; | |
888 | ||
889 | void CALLBACK GPUwriteDataMem(uint32_t * pMem, int iSize) | |
890 | { | |
891 | unsigned char command; | |
892 | uint32_t gdata=0; | |
893 | int i=0; | |
894 | GPUIsBusy; | |
895 | GPUIsNotReadyForCommands; | |
896 | ||
897 | STARTVRAM: | |
898 | ||
899 | if(DataWriteMode==DR_VRAMTRANSFER) | |
900 | { | |
901 | BOOL bFinished=FALSE; | |
902 | ||
903 | // make sure we are in vram | |
904 | while(VRAMWrite.ImagePtr>=psxVuw_eom) | |
a96a5eb2 | 905 | VRAMWrite.ImagePtr-=512*1024; |
ef79bbde | 906 | while(VRAMWrite.ImagePtr<psxVuw) |
a96a5eb2 | 907 | VRAMWrite.ImagePtr+=512*1024; |
ef79bbde P |
908 | |
909 | // now do the loop | |
910 | while(VRAMWrite.ColsRemaining>0) | |
911 | { | |
912 | while(VRAMWrite.RowsRemaining>0) | |
913 | { | |
914 | if(i>=iSize) {goto ENDVRAM;} | |
915 | i++; | |
916 | ||
917 | gdata=GETLE32(pMem); pMem++; | |
918 | ||
919 | PUTLE16(VRAMWrite.ImagePtr, (unsigned short)gdata); VRAMWrite.ImagePtr++; | |
a96a5eb2 | 920 | if(VRAMWrite.ImagePtr>=psxVuw_eom) VRAMWrite.ImagePtr-=512*1024; |
ef79bbde P |
921 | VRAMWrite.RowsRemaining --; |
922 | ||
923 | if(VRAMWrite.RowsRemaining <= 0) | |
924 | { | |
925 | VRAMWrite.ColsRemaining--; | |
926 | if (VRAMWrite.ColsRemaining <= 0) // last pixel is odd width | |
927 | { | |
928 | gdata=(gdata&0xFFFF)|(((uint32_t)GETLE16(VRAMWrite.ImagePtr))<<16); | |
929 | FinishedVRAMWrite(); | |
930 | bDoVSyncUpdate=TRUE; | |
931 | goto ENDVRAM; | |
932 | } | |
933 | VRAMWrite.RowsRemaining = VRAMWrite.Width; | |
934 | VRAMWrite.ImagePtr += 1024 - VRAMWrite.Width; | |
935 | } | |
936 | ||
937 | PUTLE16(VRAMWrite.ImagePtr, (unsigned short)(gdata>>16)); VRAMWrite.ImagePtr++; | |
a96a5eb2 | 938 | if(VRAMWrite.ImagePtr>=psxVuw_eom) VRAMWrite.ImagePtr-=512*1024; |
ef79bbde P |
939 | VRAMWrite.RowsRemaining --; |
940 | } | |
941 | ||
942 | VRAMWrite.RowsRemaining = VRAMWrite.Width; | |
943 | VRAMWrite.ColsRemaining--; | |
944 | VRAMWrite.ImagePtr += 1024 - VRAMWrite.Width; | |
945 | bFinished=TRUE; | |
946 | } | |
947 | ||
948 | FinishedVRAMWrite(); | |
949 | if(bFinished) bDoVSyncUpdate=TRUE; | |
950 | } | |
951 | ||
952 | ENDVRAM: | |
953 | ||
954 | if(DataWriteMode==DR_NORMAL) | |
955 | { | |
956 | void (* *primFunc)(unsigned char *); | |
957 | if(bSkipNextFrame) primFunc=primTableSkip; | |
958 | else primFunc=primTableJ; | |
959 | ||
960 | for(;i<iSize;) | |
961 | { | |
962 | if(DataWriteMode==DR_VRAMTRANSFER) goto STARTVRAM; | |
963 | ||
964 | gdata=GETLE32(pMem); pMem++; i++; | |
965 | ||
966 | if(gpuDataC == 0) | |
967 | { | |
968 | command = (unsigned char)((gdata>>24) & 0xff); | |
969 | ||
970 | //if(command>=0xb0 && command<0xc0) auxprintf("b0 %x!!!!!!!!!\n",command); | |
971 | ||
972 | if(primTableCX[command]) | |
973 | { | |
974 | gpuDataC = primTableCX[command]; | |
975 | gpuCommand = command; | |
0d16cda2 | 976 | PUTLE32_(&gpuDataM[0], gdata); |
ef79bbde P |
977 | gpuDataP = 1; |
978 | } | |
979 | else continue; | |
980 | } | |
981 | else | |
982 | { | |
0d16cda2 | 983 | PUTLE32_(&gpuDataM[gpuDataP], gdata); |
ef79bbde P |
984 | if(gpuDataC>128) |
985 | { | |
986 | if((gpuDataC==254 && gpuDataP>=3) || | |
987 | (gpuDataC==255 && gpuDataP>=4 && !(gpuDataP&1))) | |
988 | { | |
989 | if((gpuDataM[gpuDataP] & 0xF000F000) == 0x50005000) | |
990 | gpuDataP=gpuDataC-1; | |
991 | } | |
992 | } | |
993 | gpuDataP++; | |
994 | } | |
995 | ||
996 | if(gpuDataP == gpuDataC) | |
997 | { | |
998 | gpuDataC=gpuDataP=0; | |
999 | primFunc[gpuCommand]((unsigned char *)gpuDataM); | |
a96a5eb2 | 1000 | if(dwActFixes&0x0400) // hack for emulating "gpu busy" in some games |
1001 | iFakePrimBusy=4; | |
1002 | } | |
ef79bbde P |
1003 | } |
1004 | } | |
1005 | ||
1006 | lGPUdataRet=gdata; | |
1007 | ||
1008 | GPUIsReadyForCommands; | |
1009 | GPUIsIdle; | |
1010 | } | |
1011 | ||
1012 | //////////////////////////////////////////////////////////////////////// | |
1013 | ||
1014 | void CALLBACK GPUwriteData(uint32_t gdata) | |
1015 | { | |
0d16cda2 | 1016 | PUTLE32_(&gdata, gdata); |
ef79bbde P |
1017 | GPUwriteDataMem(&gdata,1); |
1018 | } | |
1019 | ||
ef79bbde P |
1020 | //////////////////////////////////////////////////////////////////////// |
1021 | // process gpu commands | |
1022 | //////////////////////////////////////////////////////////////////////// | |
1023 | ||
1024 | unsigned long lUsedAddr[3]; | |
1025 | ||
a96a5eb2 | 1026 | static inline BOOL CheckForEndlessLoop(unsigned long laddr) |
ef79bbde P |
1027 | { |
1028 | if(laddr==lUsedAddr[1]) return TRUE; | |
1029 | if(laddr==lUsedAddr[2]) return TRUE; | |
1030 | ||
1031 | if(laddr<lUsedAddr[0]) lUsedAddr[1]=laddr; | |
1032 | else lUsedAddr[2]=laddr; | |
1033 | lUsedAddr[0]=laddr; | |
1034 | return FALSE; | |
1035 | } | |
1036 | ||
1037 | long CALLBACK GPUdmaChain(uint32_t * baseAddrL, uint32_t addr) | |
1038 | { | |
1039 | uint32_t dmaMem; | |
1040 | unsigned char * baseAddrB; | |
1041 | short count;unsigned int DMACommandCounter = 0; | |
b03e0caf | 1042 | long dmaWords = 0; |
ef79bbde P |
1043 | |
1044 | GPUIsBusy; | |
1045 | ||
1046 | lUsedAddr[0]=lUsedAddr[1]=lUsedAddr[2]=0xffffff; | |
1047 | ||
1048 | baseAddrB = (unsigned char*) baseAddrL; | |
1049 | ||
1050 | do | |
1051 | { | |
a96a5eb2 | 1052 | addr&=0x1FFFFC; |
ef79bbde P |
1053 | if(DMACommandCounter++ > 2000000) break; |
1054 | if(CheckForEndlessLoop(addr)) break; | |
1055 | ||
1056 | count = baseAddrB[addr+3]; | |
b03e0caf | 1057 | dmaWords += 1 + count; |
ef79bbde P |
1058 | |
1059 | dmaMem=addr+4; | |
1060 | ||
1061 | if(count>0) GPUwriteDataMem(&baseAddrL[dmaMem>>2],count); | |
1062 | ||
1063 | addr = GETLE32(&baseAddrL[addr>>2])&0xffffff; | |
1064 | } | |
1065 | while (addr != 0xffffff); | |
1066 | ||
1067 | GPUIsIdle; | |
1068 | ||
b03e0caf | 1069 | return dmaWords; |
ef79bbde P |
1070 | } |
1071 | ||
ef79bbde P |
1072 | //////////////////////////////////////////////////////////////////////// |
1073 | // Freeze | |
1074 | //////////////////////////////////////////////////////////////////////// | |
1075 | ||
1076 | typedef struct GPUFREEZETAG | |
1077 | { | |
1078 | uint32_t ulFreezeVersion; // should be always 1 for now (set by main emu) | |
1079 | uint32_t ulStatus; // current gpu status | |
1080 | uint32_t ulControl[256]; // latest control register values | |
1081 | unsigned char psxVRam[1024*1024*2]; // current VRam image (full 2 MB for ZN) | |
1082 | } GPUFreeze_t; | |
1083 | ||
1084 | //////////////////////////////////////////////////////////////////////// | |
1085 | ||
1086 | long CALLBACK GPUfreeze(uint32_t ulGetFreezeData,GPUFreeze_t * pF) | |
1087 | { | |
1088 | //----------------------------------------------------// | |
1089 | if(ulGetFreezeData==2) // 2: info, which save slot is selected? (just for display) | |
1090 | { | |
1091 | long lSlotNum=*((long *)pF); | |
1092 | if(lSlotNum<0) return 0; | |
1093 | if(lSlotNum>8) return 0; | |
1094 | lSelectedSlot=lSlotNum+1; | |
ef79bbde P |
1095 | return 1; |
1096 | } | |
1097 | //----------------------------------------------------// | |
1098 | if(!pF) return 0; // some checks | |
1099 | if(pF->ulFreezeVersion!=1) return 0; | |
1100 | ||
1101 | if(ulGetFreezeData==1) // 1: get data | |
1102 | { | |
1103 | pF->ulStatus=lGPUstatusRet; | |
1104 | memcpy(pF->ulControl,ulStatusControl,256*sizeof(uint32_t)); | |
a96a5eb2 | 1105 | memcpy(pF->psxVRam, psxVub, 1024*512*2); |
ef79bbde P |
1106 | |
1107 | return 1; | |
1108 | } | |
1109 | ||
1110 | if(ulGetFreezeData!=0) return 0; // 0: set data | |
1111 | ||
1112 | lGPUstatusRet=pF->ulStatus; | |
1113 | memcpy(ulStatusControl,pF->ulControl,256*sizeof(uint32_t)); | |
a96a5eb2 | 1114 | memcpy(psxVub, pF->psxVRam, 1024*512*2); |
ef79bbde P |
1115 | |
1116 | // RESET TEXTURE STORE HERE, IF YOU USE SOMETHING LIKE THAT | |
1117 | ||
321ca84d | 1118 | PreviousPSXDisplay.Height = 0; |
ef79bbde P |
1119 | GPUwriteStatus(ulStatusControl[0]); |
1120 | GPUwriteStatus(ulStatusControl[1]); | |
1121 | GPUwriteStatus(ulStatusControl[2]); | |
1122 | GPUwriteStatus(ulStatusControl[3]); | |
1123 | GPUwriteStatus(ulStatusControl[8]); // try to repair things | |
1124 | GPUwriteStatus(ulStatusControl[6]); | |
1125 | GPUwriteStatus(ulStatusControl[7]); | |
1126 | GPUwriteStatus(ulStatusControl[5]); | |
1127 | GPUwriteStatus(ulStatusControl[4]); | |
1128 | ||
1129 | return 1; | |
1130 | } | |
2588a938 | 1131 | |
1132 | void CALLBACK GPUvBlank(int val) | |
1133 | { | |
1134 | vBlank=val?0x80000000:0; | |
1135 | } | |
1136 | ||
e64dc4c5 | 1137 | // rearmed thing |
1138 | #include "../../frontend/plugin_lib.h" | |
1139 | ||
76f7048e | 1140 | const struct rearmed_cbs *rcbs; |
1141 | ||
e64dc4c5 | 1142 | void GPUrearmedCallbacks(const struct rearmed_cbs *cbs) |
1143 | { | |
1144 | // sync config | |
1145 | UseFrameSkip = cbs->frameskip; | |
1146 | iUseDither = cbs->gpu_peops.iUseDither; | |
1147 | dwActFixes = cbs->gpu_peops.dwActFixes; | |
1148 | fFrameRateHz = cbs->gpu_peops.fFrameRateHz; | |
1149 | dwFrameRateTicks = cbs->gpu_peops.dwFrameRateTicks; | |
55b0eeea | 1150 | if (cbs->pl_vout_set_raw_vram) |
1151 | cbs->pl_vout_set_raw_vram(psxVub); | |
e64dc4c5 | 1152 | |
1153 | skip_advice = &cbs->fskip_advice; | |
1154 | fps_skip = 100.0f; | |
76f7048e | 1155 | rcbs = cbs; |
e64dc4c5 | 1156 | } |