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