sdk-world v2026.11.05
PS2 SDK - world tier (copyleft-allowed, non-essential packages)
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gsInit.c
1// ____ ___ | / _____ _____
2// | __ | |___/ | |
3// |___| ___| | \ __|__ | gsKit Open Source Project.
4// ----------------------------------------------------------------------
5// Copyright 2004 - Chris "Neovanglist" Gilbert <Neovanglist@LainOS.org>
6// Licenced under Academic Free License version 2.0
7// Review gsKit README & LICENSE files for further details.
8//
9// gsInit.c - GS initialization and configuration routines.
10//
11// Parts taken from emoon's BreakPoint Demo Library
12//
13
14#include "gsKit.h"
15
16#include <stdio.h>
17#include <stdlib.h>
18#include <malloc.h>
19#include <unistd.h>
20#include <fcntl.h>
21#include <kernel.h>
22#include <osd_config.h>
23#include <rom0_info.h>
24#include <syscallnr.h>
25
26#define posixIODriver { open, close, (int (*)(int, void *, int))read, O_RDONLY }
27
28short int gsKit_check_rom(void)
29{
30 static int default_signal = -1;
31 char romname[15];
32
33 if(default_signal < 0)
34 {
35 _io_driver driver = posixIODriver;
36 GetRomNameWithIODriver((char *)romname, &driver);
37 romname[14] = '\0';
38
39 //ROMVER string format: VVVVRTYYYYMMDD
40 default_signal = (romname[4] == 'E') ? GS_MODE_PAL : GS_MODE_NTSC;
41 }
42
43 return default_signal;
44}
45
46void gsKit_set_display_offset(GSGLOBAL *gsGlobal, int x, int y)
47{
48 gsGlobal->StartXOffset = x;
49 gsGlobal->StartYOffset = y;
50
51 if (gsGlobal->Interlace == GS_INTERLACED) {
52 // Do not change odd/even start position in interlaced mode
53 gsGlobal->StartYOffset &= ~1;
54 }
55
56 GS_SET_DISPLAY1(
57 gsGlobal->StartX + gsGlobal->StartXOffset, // X position in the display area (in VCK unit
58 gsGlobal->StartY + gsGlobal->StartYOffset, // Y position in the display area (in Raster u
59 gsGlobal->MagH, // Horizontal Magnification
60 gsGlobal->MagV, // Vertical Magnification
61 gsGlobal->DW - 1, // Display area width
62 gsGlobal->DH - 1); // Display area height
63
64 GS_SET_DISPLAY2(
65 gsGlobal->StartX + gsGlobal->StartXOffset, // X position in the display area (in VCK units)
66 gsGlobal->StartY + gsGlobal->StartYOffset, // Y position in the display area (in Raster units)
67 gsGlobal->MagH, // Horizontal Magnification
68 gsGlobal->MagV, // Vertical Magnification
69 gsGlobal->DW - 1, // Display area width
70 gsGlobal->DH - 1); // Display area height
71}
72
73static void gsKit_set_buffer_attributes(GSGLOBAL *gsGlobal)
74{
75 int gs_DX, gs_DY, gs_DW, gs_DH;
76
77 gsGlobal->StartXOffset = 0;
78 gsGlobal->StartYOffset = 0;
79
80 switch (gsGlobal->Mode) {
81 case GS_MODE_NTSC:
82 gsGlobal->StartX = 492;
83 gsGlobal->StartY = 34;
84 gsGlobal->DW = 2880;
85 gsGlobal->DH = 480;
86 break;
87 case GS_MODE_PAL:
88 gsGlobal->StartX = 520;
89 gsGlobal->StartY = 40;
90 gsGlobal->DW = 2880;
91 gsGlobal->DH = 576;
92 break;
93 case GS_MODE_VGA_640_60:
94 gsGlobal->StartX = 280;
95 gsGlobal->StartY = 18;
96 gsGlobal->DW = 1280;
97 gsGlobal->DH = 480;
98 break;
99 case GS_MODE_VGA_640_72:
100 gsGlobal->StartX = 330;
101 gsGlobal->StartY = 18;
102 gsGlobal->DW = 1280;
103 gsGlobal->DH = 480;
104 break;
105 case GS_MODE_VGA_640_75:
106 gsGlobal->StartX = 360;
107 gsGlobal->StartY = 18;
108 gsGlobal->DW = 1280;
109 gsGlobal->DH = 480;
110 break;
111 case GS_MODE_VGA_640_85:
112 gsGlobal->StartX = 260;
113 gsGlobal->StartY = 18;
114 gsGlobal->DW = 1280;
115 gsGlobal->DH = 480;
116 break;
117 case GS_MODE_VGA_800_56:
118 gsGlobal->StartX = 450;
119 gsGlobal->StartY = 25;
120 gsGlobal->DW = 1600;
121 gsGlobal->DH = 600;
122 break;
123 case GS_MODE_VGA_800_60:
124 case GS_MODE_VGA_800_72:
125 gsGlobal->StartX = 465;
126 gsGlobal->StartY = 25;
127 gsGlobal->DW = 1600;
128 gsGlobal->DH = 600;
129 break;
130 case GS_MODE_VGA_800_75:
131 gsGlobal->StartX = 510;
132 gsGlobal->StartY = 25;
133 gsGlobal->DW = 1600;
134 gsGlobal->DH = 600;
135 break;
136 case GS_MODE_VGA_800_85:
137 gsGlobal->StartX = 500;
138 gsGlobal->StartY = 25;
139 gsGlobal->DW = 1600;
140 gsGlobal->DH = 600;
141 break;
142 case GS_MODE_VGA_1024_60:
143 gsGlobal->StartX = 580;
144 gsGlobal->StartY = 30;
145 gsGlobal->DW = 2048; // does this really need doubling? can't test
146 gsGlobal->DH = 768;
147 break;
148 case GS_MODE_VGA_1024_70:
149 gsGlobal->StartX = 266;
150 gsGlobal->StartY = 30;
151 gsGlobal->DW = 1024;
152 gsGlobal->DH = 768;
153 break;
154 case GS_MODE_VGA_1024_75:
155 gsGlobal->StartX = 260;
156 gsGlobal->StartY = 30;
157 gsGlobal->DW = 1024;
158 gsGlobal->DH = 768;
159 break;
160 case GS_MODE_VGA_1024_85:
161 gsGlobal->StartX = 290;
162 gsGlobal->StartY = 30;
163 gsGlobal->DW = 1024;
164 gsGlobal->DH = 768;
165 break;
166 case GS_MODE_VGA_1280_60:
167 case GS_MODE_VGA_1280_75:
168 gsGlobal->StartX = 350;
169 gsGlobal->StartY = 40;
170 gsGlobal->DW = 1280;
171 gsGlobal->DH = 1024;
172 break;
173 case GS_MODE_DTV_480P:
174 gsGlobal->StartX = 232;
175 gsGlobal->StartY = 35;
176 gsGlobal->DW = 1440;
177 gsGlobal->DH = 480; // though rare there are tv's that can handle an interlaced 480p source
178 break;
179 case GS_MODE_DTV_576P:
180 gsGlobal->StartX = 255;
181 gsGlobal->StartY = 44;
182 gsGlobal->DW = 1440;
183 gsGlobal->DH = 576;
184 break;
185 case GS_MODE_DTV_720P:
186 gsGlobal->StartX = 306;
187 gsGlobal->StartY = 24;
188 gsGlobal->DW = 1280;
189 gsGlobal->DH = 720;
190 break;
191 case GS_MODE_DTV_1080I:
192 gsGlobal->StartX = 236;
193 gsGlobal->StartY = 38;
194 gsGlobal->DW = 1920;
195 gsGlobal->DH = 1080;
196 break;
197 }
198
199 if((gsGlobal->Mode == GS_MODE_NTSC || gsGlobal->Mode == GS_MODE_PAL) && (gsGlobal->Interlace == GS_NONINTERLACED)) {
200 // NTSC 240p instead of 480i
201 // PAL 288p instead of 576i
202 gsGlobal->StartY /= 2;
203 gsGlobal->DH /= 2;
204 }
205
206 gsGlobal->MagH = (gsGlobal->DW / gsGlobal->Width) - 1; // gsGlobal->DW should be a multiple of the screen width
207 gsGlobal->MagV = (gsGlobal->DH / gsGlobal->Height) - 1; // gsGlobal->DH should be a multiple of the screen height
208
209 // For other video modes, other than NTSC and PAL: if this model supports the GetGsDxDy syscall, get the board-specific offsets.
210 if(gsGlobal->Mode != GS_MODE_NTSC && gsGlobal->Mode != GS_MODE_PAL)
211 {
212 if(GetSyscallHandler(__NR__GetGsDxDyOffset))
213 {
214 _GetGsDxDyOffset(gsGlobal->Mode, &gs_DX, &gs_DY, &gs_DW, &gs_DH);
215 gsGlobal->StartX += gs_DX;
216 gsGlobal->StartY += gs_DY;
217 }
218 }
219
220 // Keep the framebuffer in the center of the screen
221 gsGlobal->StartX += (gsGlobal->DW - ((gsGlobal->MagH + 1) * gsGlobal->Width )) / 2;
222 gsGlobal->StartY += (gsGlobal->DH - ((gsGlobal->MagV + 1) * gsGlobal->Height)) / 2;
223
224 if (gsGlobal->Interlace == GS_INTERLACED) {
225 // Do not change odd/even start position in interlaced mode
226 gsGlobal->StartY &= ~1;
227 }
228
229 // Calculate the actual display width and height
230 gsGlobal->DW = (gsGlobal->MagH + 1) * gsGlobal->Width;
231 gsGlobal->DH = (gsGlobal->MagV + 1) * gsGlobal->Height;
232
233 if ((gsGlobal->Interlace == GS_INTERLACED) && (gsGlobal->Field == GS_FRAME)) {
234 gsGlobal->MagV--;
235 }
236}
237
238void gsKit_init_screen(GSGLOBAL *gsGlobal)
239{
240 u64 *p_data;
241 u64 *p_store;
242 int size = 19;
243
244 if((gsGlobal->Dithering == GS_SETTING_ON) &&
245 ((gsGlobal->PSM == GS_PSM_CT16) || (gsGlobal->PSM == GS_PSM_CT16S)))
246 size++;
247
248 gsKit_set_buffer_attributes(gsGlobal);
249
250#ifdef DEBUG
251 printf("Screen Mode:\n");
252 printf("------------\n");
253 printf("Width : %d\n", gsGlobal->Width);
254 printf("Height: %d\n", gsGlobal->Height);
255 printf("StartX: %d\n", gsGlobal->StartX);
256 printf("StartY: %d\n", gsGlobal->StartY);
257 printf("MagH : %d\n", gsGlobal->MagH);
258 printf("MagV : %d\n", gsGlobal->MagV);
259 printf("DW : %d\n", gsGlobal->DW);
260 printf("DH : %d\n", gsGlobal->DH);
261#endif
262
263 GS_RESET();
264
265 __asm__("sync.p; nop;");
266
267 *GS_CSR = 0x00000000; // Clean CSR registers
268
269 GsPutIMR(0x00007F00); // Masks all interrupts
270
271 SetGsCrt(gsGlobal->Interlace, gsGlobal->Mode, gsGlobal->Field);
272
273 // Fix 1080i frame mode
274 if ((gsGlobal->Mode == GS_MODE_DTV_1080I) && (gsGlobal->Field == GS_FRAME))
275 GS_SET_SMODE2(1, 1, 0);
276
277 gsGlobal->FirstFrame = GS_SETTING_ON;
278
279 if(gsGlobal->ZBuffering == GS_SETTING_OFF)
280 {
281 gsGlobal->Test->ZTE = GS_SETTING_ON;
282 gsGlobal->Test->ZTST = 1;
283 }
284
285 DIntr(); // disable interrupts
286
287 GS_SET_PMODE( 0, // Read Circuit 1
288 1, // Read Circuit 2
289 0, // Use ALP Register for Alpha Blending
290 1, // Alpha Value of Read Circuit 2 for Output Selection
291 0, // Blend Alpha with output of Read Circuit 2
292 0x80); // Alpha Value = 1.0
293
294 GS_SET_DISPFB1( 0, // Frame Buffer Base Pointer (Address/2048)
295 gsGlobal->Width / 64, // Buffer Width (Address/64)
296 gsGlobal->PSM, // Pixel Storage Format
297 0, // Upper Left X in Buffer
298 0);
299
300 GS_SET_DISPFB2( 0, // Frame Buffer Base Pointer (Address/2048)
301 gsGlobal->Width / 64, // Buffer Width (Address/64)
302 gsGlobal->PSM, // Pixel Storage Format
303 0, // Upper Left X in Buffer
304 0); // Upper Left Y in Buffer
305
306 GS_SET_DISPLAY1(
307 gsGlobal->StartX + gsGlobal->StartXOffset, // X position in the display area (in VCK unit
308 gsGlobal->StartY + gsGlobal->StartYOffset, // Y position in the display area (in Raster u
309 gsGlobal->MagH, // Horizontal Magnification
310 gsGlobal->MagV, // Vertical Magnification
311 gsGlobal->DW - 1, // Display area width
312 gsGlobal->DH - 1); // Display area height
313
314 GS_SET_DISPLAY2(
315 gsGlobal->StartX + gsGlobal->StartXOffset, // X position in the display area (in VCK units)
316 gsGlobal->StartY + gsGlobal->StartYOffset, // Y position in the display area (in Raster units)
317 gsGlobal->MagH, // Horizontal Magnification
318 gsGlobal->MagV, // Vertical Magnification
319 gsGlobal->DW - 1, // Display area width
320 gsGlobal->DH - 1); // Display area height
321
322 GS_SET_BGCOLOR( gsGlobal->BGColor->Red, // Red
323 gsGlobal->BGColor->Green, // Green
324 gsGlobal->BGColor->Blue); // Blue
325
326 EIntr(); //enable interrupts
327
328 gsGlobal->CurrentPointer = 0; // reset vram pointer too
329
330 // Context 1
331 gsGlobal->ScreenBuffer[0] = gsKit_vram_alloc( gsGlobal, gsKit_texture_size(gsGlobal->Width, gsGlobal->Height, gsGlobal->PSM), GSKIT_ALLOC_SYSBUFFER );
332
333 if(gsGlobal->DoubleBuffering == GS_SETTING_OFF)
334 {
335 gsGlobal->ScreenBuffer[1] = gsGlobal->ScreenBuffer[0];
336 }
337 else
338 // Context 2
339 gsGlobal->ScreenBuffer[1] = gsKit_vram_alloc( gsGlobal, gsKit_texture_size(gsGlobal->Width, gsGlobal->Height, gsGlobal->PSM), GSKIT_ALLOC_SYSBUFFER );
340
341
342 if(gsGlobal->ZBuffering == GS_SETTING_ON)
343 gsGlobal->ZBuffer = gsKit_vram_alloc( gsGlobal, gsKit_texture_size(gsGlobal->Width, gsGlobal->Height, gsGlobal->PSMZ), GSKIT_ALLOC_SYSBUFFER ); // Z Buffer
344
345 gsGlobal->TexturePointer = gsGlobal->CurrentPointer; // first useable address for textures
346
347 p_data = p_store = (u64 *)gsGlobal->dma_misc;
348
349 *p_data++ = GIF_TAG( size - 1, 1, 0, 0, GSKIT_GIF_FLG_PACKED, 1 );
350 *p_data++ = GIF_AD;
351
352 *p_data++ = 1;
353 *p_data++ = GS_PRMODECONT;
354
355 *p_data++ = GS_SETREG_FRAME_1( gsGlobal->ScreenBuffer[0] / 8192, gsGlobal->Width / 64, gsGlobal->PSM, 0 );
356 *p_data++ = GS_FRAME_1;
357
358 *p_data++ = GS_SETREG_XYOFFSET_1( gsGlobal->OffsetX,
359 gsGlobal->OffsetY);
360 *p_data++ = GS_XYOFFSET_1;
361
362 *p_data++ = GS_SETREG_SCISSOR_1( 0, gsGlobal->Width - 1, 0, gsGlobal->Height - 1 );
363 *p_data++ = GS_SCISSOR_1;
364
365 *p_data++ = GS_SETREG_TEST( gsGlobal->Test->ATE, gsGlobal->Test->ATST,
366 gsGlobal->Test->AREF, gsGlobal->Test->AFAIL,
367 gsGlobal->Test->DATE, gsGlobal->Test->DATM,
368 gsGlobal->Test->ZTE, gsGlobal->Test->ZTST );
369
370 *p_data++ = GS_TEST_1;
371
372 *p_data++ = GS_SETREG_CLAMP(gsGlobal->Clamp->WMS, gsGlobal->Clamp->WMT,
373 gsGlobal->Clamp->MINU, gsGlobal->Clamp->MAXU,
374 gsGlobal->Clamp->MINV, gsGlobal->Clamp->MAXV);
375
376 *p_data++ = GS_CLAMP_1;
377
378 if(gsGlobal->ZBuffering == GS_SETTING_ON)
379 {
380 if((gsGlobal->PSM == GS_PSM_CT16) && (gsGlobal->PSMZ != GS_PSMZ_16))
381 gsGlobal->PSMZ = GS_PSMZ_16; // seems only non-S 16-bit z depth works with this mode
382 if((gsGlobal->PSM != GS_PSM_CT16) && (gsGlobal->PSMZ == GS_PSMZ_16))
383 gsGlobal->PSMZ = GS_PSMZ_16S; // other depths don't seem to work with 16-bit non-S z depth
384
385 *p_data++ = GS_SETREG_ZBUF_1( gsGlobal->ZBuffer / 8192, gsGlobal->PSMZ, 0 );
386 *p_data++ = GS_ZBUF_1;
387 }
388 if(gsGlobal->ZBuffering == GS_SETTING_OFF)
389 {
390 *p_data++ = GS_SETREG_ZBUF_1( 0, gsGlobal->PSM, 1 );
391 *p_data++ = GS_ZBUF_1;
392 }
393
394 *p_data++ = GS_SETREG_COLCLAMP( 255 );
395 *p_data++ = GS_COLCLAMP;
396
397 *p_data++ = GS_SETREG_FRAME_1( gsGlobal->ScreenBuffer[1] / 8192, gsGlobal->Width / 64, gsGlobal->PSM, 0 );
398 *p_data++ = GS_FRAME_2;
399
400 *p_data++ = GS_SETREG_XYOFFSET_1( gsGlobal->OffsetX,
401 gsGlobal->OffsetY);
402 *p_data++ = GS_XYOFFSET_2;
403
404 *p_data++ = GS_SETREG_SCISSOR_1( 0, gsGlobal->Width - 1, 0, gsGlobal->Height - 1);
405 *p_data++ = GS_SCISSOR_2;
406
407 *p_data++ = GS_SETREG_TEST( gsGlobal->Test->ATE, gsGlobal->Test->ATST,
408 gsGlobal->Test->AREF, gsGlobal->Test->AFAIL,
409 gsGlobal->Test->DATE, gsGlobal->Test->DATM,
410 gsGlobal->Test->ZTE, gsGlobal->Test->ZTST );
411
412 *p_data++ = GS_TEST_2;
413
414 *p_data++ = GS_SETREG_CLAMP(gsGlobal->Clamp->WMS, gsGlobal->Clamp->WMT,
415 gsGlobal->Clamp->MINU, gsGlobal->Clamp->MAXU,
416 gsGlobal->Clamp->MINV, gsGlobal->Clamp->MAXV);
417
418 *p_data++ = GS_CLAMP_2;
419
420 if(gsGlobal->ZBuffering == GS_SETTING_ON)
421 {
422 *p_data++ = GS_SETREG_ZBUF_1( gsGlobal->ZBuffer / 8192, gsGlobal->PSMZ, 0 );
423 *p_data++ = GS_ZBUF_2;
424 }
425 if(gsGlobal->ZBuffering == GS_SETTING_OFF)
426 {
427 *p_data++ = GS_SETREG_ZBUF_1( 0, gsGlobal->PSM, 1 );
428 *p_data++ = GS_ZBUF_2;
429 }
430
431 *p_data++ = GS_BLEND_BACK2FRONT;
432 *p_data++ = GS_ALPHA_1;
433
434 *p_data++ = GS_BLEND_BACK2FRONT;
435 *p_data++ = GS_ALPHA_2;
436
437 *p_data++ = GS_SETREG_DIMX(gsGlobal->DitherMatrix[0],gsGlobal->DitherMatrix[1],
438 gsGlobal->DitherMatrix[2],gsGlobal->DitherMatrix[3],gsGlobal->DitherMatrix[4],
439 gsGlobal->DitherMatrix[5],gsGlobal->DitherMatrix[6],gsGlobal->DitherMatrix[7],
440 gsGlobal->DitherMatrix[8],gsGlobal->DitherMatrix[9],gsGlobal->DitherMatrix[10],
441 gsGlobal->DitherMatrix[11],gsGlobal->DitherMatrix[12],gsGlobal->DitherMatrix[13],
442 gsGlobal->DitherMatrix[14],gsGlobal->DitherMatrix[15]); // 4x4 dither matrix
443
444 *p_data++ = GS_DIMX;
445
446 *p_data++ = GS_SETREG_TEXA(0x00, 0, 0x80);
447 *p_data++ = GS_TEXA;
448
449 if((gsGlobal->Dithering == GS_SETTING_ON) && ((gsGlobal->PSM == GS_PSM_CT16) || (gsGlobal->PSM == GS_PSM_CT16S))) {
450 *p_data++ = 1;
451 *p_data++ = GS_DTHE;
452 }
453
454 dmaKit_send_ucab(DMA_CHANNEL_GIF, p_store, size);
455 dmaKit_wait_fast();
456
457 // do a single frame here to get rid whatever needs to be done during the first frame
458
459 gsKit_clear(gsGlobal, GS_SETREG_RGBAQ(0x00,0x00,0x00,0x00,0x00)); // clear the screen
460
461 gsKit_queue_exec(gsGlobal);
462
463 gsKit_sync_flip(gsGlobal);
464
465 gsKit_queue_reset(gsGlobal->Os_Queue);
466}
467
468GSGLOBAL *gsKit_init_global_custom(int Os_AllocSize, int Per_AllocSize)
469{
470 //s8 dither_matrix[16] = {-4,2,-3,3,0,-2,1,-1,-3,3,-4,2,1,-1,0,-2};
471 s8 dither_matrix[16] = {4,2,5,3,0,6,1,7,5,3,4,2,1,7,0,6}; //different matrix
472 int i = 0;
473
474 GSGLOBAL *gsGlobal = calloc(1,sizeof(GSGLOBAL));
475 gsGlobal->BGColor = calloc(1,sizeof(GSBGCOLOR));
476 gsGlobal->Test = calloc(1,sizeof(GSTEST));
477 gsGlobal->Clamp = calloc(1,sizeof(GSCLAMP));
478 gsGlobal->Os_Queue = calloc(1,sizeof(GSQUEUE));
479 gsGlobal->Per_Queue = calloc(1,sizeof(GSQUEUE));
480 gsGlobal->dma_misc = gsKit_alloc_ucab(512);
481
482 /* Generic Values */
483 _io_driver driver = posixIODriver;
484 if(configGetTvScreenTypeWithIODriver(&driver) == 2) gsGlobal->Aspect = GS_ASPECT_16_9;
485 else
486 gsGlobal->Aspect = GS_ASPECT_4_3;
487
488 gsGlobal->PSM = GS_PSM_CT24;
489 gsGlobal->PSMZ = GS_PSMZ_32;
490
491 gsGlobal->Dithering = GS_SETTING_OFF;
492 gsGlobal->DoubleBuffering = GS_SETTING_ON;
493 gsGlobal->ZBuffering = GS_SETTING_ON;
494
495 // Setup a mode automatically
496 gsGlobal->Mode = gsKit_check_rom();
497 gsGlobal->Interlace = GS_INTERLACED;
498 gsGlobal->Field = GS_FIELD;
499 gsGlobal->Width = 640;
500
501 if(gsGlobal->Mode == GS_MODE_PAL) gsGlobal->Height = 512;
502 else gsGlobal->Height = 448;
503
504 gsGlobal->CurrentPointer = 0;
505
506 gsGlobal->DrawOrder = GS_PER_OS;
507
508 gsGlobal->EvenOrOdd = 0;
509
510 gsGlobal->Os_AllocSize = Os_AllocSize;
511 gsKit_queue_init(gsGlobal, gsGlobal->Os_Queue, GS_ONESHOT, Os_AllocSize);
512
513 gsGlobal->Per_AllocSize = Per_AllocSize;
514 gsKit_queue_init(gsGlobal, gsGlobal->Per_Queue, GS_PERSISTENT, Per_AllocSize);
515
516 gsGlobal->CurQueue = gsGlobal->Os_Queue;
517
518 gsGlobal->OffsetX = (int)(2048.0f * 16.0f);
519 gsGlobal->OffsetY = (int)(2048.0f * 16.0f);
520 gsGlobal->ActiveBuffer = 1;
521 gsGlobal->LockBuffer = GS_SETTING_OFF;
522 gsGlobal->PrimFogEnable = GS_SETTING_OFF;
523 gsGlobal->PrimAAEnable = GS_SETTING_OFF;
524 gsGlobal->PrimAlphaEnable = GS_SETTING_OFF;
525 gsGlobal->PrimAlpha = GS_BLEND_BACK2FRONT;
526 gsGlobal->PrimContext = 0;
527 gsGlobal->FirstFrame = GS_SETTING_ON;
528
529 for(i = 0; i < 15; i++) {
530 gsGlobal->DitherMatrix[i] = dither_matrix[i];
531 }
532
533 /* BGColor Register Values */
534 gsGlobal->BGColor->Red = 0x00;
535 gsGlobal->BGColor->Green = 0x00;
536 gsGlobal->BGColor->Blue = 0x00;
537
538 /* TEST Register Values */
539 gsGlobal->Test->ATE = GS_SETTING_OFF;
540 gsGlobal->Test->ATST = GS_SETTING_ON;
541 gsGlobal->Test->AREF = 0x80;
542 gsGlobal->Test->AFAIL = 0;
543 gsGlobal->Test->DATE = GS_SETTING_OFF;
544 gsGlobal->Test->DATM = 0;
545 gsGlobal->Test->ZTE = GS_SETTING_ON;
546 gsGlobal->Test->ZTST = 2;
547
548 gsGlobal->Clamp->WMS = GS_CMODE_CLAMP;
549 gsGlobal->Clamp->WMT = GS_CMODE_CLAMP;
550 gsGlobal->Clamp->MINU = 0;
551 gsGlobal->Clamp->MAXU = 0;
552 gsGlobal->Clamp->MINV = 0;
553 gsGlobal->Clamp->MAXV = 0;
554
555 return gsGlobal;
556}
557
558void gsKit_deinit_global(GSGLOBAL *gsGlobal)
559{
560 gsKit_queue_free(gsGlobal, gsGlobal->Per_Queue);
561 gsKit_queue_free(gsGlobal, gsGlobal->Os_Queue);
562
563 gsKit_free_ucab(gsGlobal->dma_misc);
564 free(gsGlobal->Per_Queue);
565 free(gsGlobal->Os_Queue);
566 free(gsGlobal->Clamp);
567 free(gsGlobal->Test);
568 free(gsGlobal->BGColor);
569 free(gsGlobal);
570}
dmaKit_wait_fast
void dmaKit_wait_fast(void)
Definition dmaCore.c:45
dmaKit_send_ucab
void dmaKit_send_ucab(u16 channel, void *data, u32 size)
Definition dmaCore.c:84
GS_CMODE_CLAMP
#define GS_CMODE_CLAMP
Stretches Texture Across the Surface.
Definition gsCore.h:46
gsKit_queue_reset
void gsKit_queue_reset(GSQUEUE *Queue)
Reset specified drawqueue to it's initial state (Useful for clearing the Persistent Queue).
Definition gsCore.c:553
gsKit_clear
void gsKit_clear(GSGLOBAL *gsGlobal, u64 Color)
Definition gsCore.c:244
gsKit_vram_alloc
u32 gsKit_vram_alloc(GSGLOBAL *gsGlobal, u32 size, u8 type)
GS VRAM Allocation.
Definition gsCore.c:20
gsKit_free_ucab
void gsKit_free_ucab(void *p)
Free UCAB buffer in GSQUEUE, internal use only.
Definition gsCore.c:603
gsKit_queue_free
void gsKit_queue_free(GSGLOBAL *gsGlobal, GSQUEUE *Queue)
Free Allocated Memory for Draw Queue.
Definition gsCore.c:634
gsKit_queue_init
void gsKit_queue_init(GSGLOBAL *gsGlobal, GSQUEUE *Queue, u8 mode, int size)
Initialize a Draw Queue (Allocates memory for the Queue).
Definition gsCore.c:612
gsKit_queue_exec
void gsKit_queue_exec(GSGLOBAL *gsGlobal)
Normal User Draw Queue "Execution" (Kicks Oneshot and Persistent Queues).
Definition gsCore.c:567
GSKIT_ALLOC_SYSBUFFER
#define GSKIT_ALLOC_SYSBUFFER
GS VRAM "System" Allocation (Framebuffer, ZBuffer, etc).
Definition gsCore.h:24
gsKit_sync_flip
void gsKit_sync_flip(GSGLOBAL *gsGlobal)
Definition gsCore.c:63
gsKit_alloc_ucab
void * gsKit_alloc_ucab(int size)
Allocate UCAB buffer in GSQUEUE, internal use only.
Definition gsCore.c:588
GS_MODE_VGA_800_60
#define GS_MODE_VGA_800_60
VGA 800x600 @ 60Hz.
Definition gsInit.h:76
GS_MODE_VGA_800_75
#define GS_MODE_VGA_800_75
VGA 800x600 @ 75Hz.
Definition gsInit.h:80
GS_ASPECT_4_3
#define GS_ASPECT_4_3
4:3 Aspect Ratio (UNUSED)
Definition gsInit.h:56
GS_SETREG_XYOFFSET_1
#define GS_SETREG_XYOFFSET_1
See GS_SETREG_XYOFFSET.
Definition gsInit.h:738
GS_SET_PMODE
#define GS_SET_PMODE(EN1, EN2, MMOD, AMOD, SLBG, ALP)
GS PCRTC (Merge Circuit) Register Access Macro.
Definition gsInit.h:623
GS_FRAME_1
#define GS_FRAME_1
GS Frame Buffer (Context 1).
Definition gsInit.h:240
GS_MODE_VGA_800_56
#define GS_MODE_VGA_800_56
VGA 800x600 @ 56Hz.
Definition gsInit.h:74
GS_NONINTERLACED
#define GS_NONINTERLACED
Non-Interlaced Mode.
Definition gsInit.h:39
GS_DTHE
#define GS_DTHE
GS Dither Control.
Definition gsInit.h:226
GS_PSMZ_16S
#define GS_PSMZ_16S
RGBA16 ZBuffer ?
Definition gsInit.h:140
gsKit_init_global_custom
GSGLOBAL * gsKit_init_global_custom(int Os_AllocSize, int Per_AllocSize)
Initialize gsGlobal (With Specified Sizes (In Bytes) for the Persistent and Oneshot drawbuffers).
Definition gsInit.c:468
gsKit_init_screen
void gsKit_init_screen(GSGLOBAL *gsGlobal)
Initialize Screen and GS Registers.
Definition gsInit.c:238
GS_SETREG_COLCLAMP
#define GS_SETREG_COLCLAMP(clamp)
GS COLCLAMP Packing Macro.
Definition gsInit.h:765
GS_CLAMP_2
#define GS_CLAMP_2
GS Texture Wrap Mode (Context 2).
Definition gsInit.h:174
GS_PER_OS
#define GS_PER_OS
Draw Persistent objects first, before oneshot objects.
Definition gsInit.h:34
GS_FRAME_2
#define GS_FRAME_2
GS Frame Buffer (Context 2).
Definition gsInit.h:242
GS_PSM_CT16S
#define GS_PSM_CT16S
RGBA16 Texture ?
Definition gsInit.h:121
GS_SETREG_TEST
#define GS_SETREG_TEST(ate, atst, aref, afail, date, datm, zte, ztst)
GS TEST Packing Macro.
Definition gsInit.h:758
GS_MODE_DTV_480P
#define GS_MODE_DTV_480P
DTV 480 Progressive Scan (720x480).
Definition gsInit.h:99
GS_PSMZ_32
#define GS_PSMZ_32
R8 G8 B8 A8 (RGBA32) ZBuffer.
Definition gsInit.h:134
GS_PRMODECONT
#define GS_PRMODECONT
GS Primitive Attribute Setting Mode.
Definition gsInit.h:194
GS_SET_SMODE2
#define GS_SET_SMODE2(INT, FFMD, DPMS)
Setting For Modes Related to Video Synchronization.
Definition gsInit.h:634
GS_MODE_VGA_1280_75
#define GS_MODE_VGA_1280_75
VGA 1280x1024 @ 75Hz.
Definition gsInit.h:96
GS_SET_DISPLAY1
#define GS_SET_DISPLAY1(DX, DY, MAGH, MAGV, DW, DH)
GS Display Settings Register Access Macro (Output Circuit 1).
Definition gsInit.h:705
GS_MODE_NTSC
#define GS_MODE_NTSC
NTSC Full Buffer.
Definition gsInit.h:61
GS_CLAMP_1
#define GS_CLAMP_1
GS Texture Wrap Mode (Context 1).
Definition gsInit.h:172
GS_FRAME
#define GS_FRAME
Frame Mode - Reads Every Line.
Definition gsInit.h:46
GS_SETREG_ZBUF_1
#define GS_SETREG_ZBUF_1
See GS_SETREG_ZBUF.
Definition gsInit.h:745
gsKit_set_display_offset
void gsKit_set_display_offset(GSGLOBAL *gsGlobal, int x, int y)
Position the framebuffer onto the display.
Definition gsInit.c:46
GS_SETREG_RGBAQ
#define GS_SETREG_RGBAQ(r, g, b, a, q)
Object Creation Macro for RGBAQ Color Values.
Definition gsInit.h:579
GS_MODE_VGA_1280_60
#define GS_MODE_VGA_1280_60
VGA 1280x1024 @ 60Hz.
Definition gsInit.h:94
GS_MODE_PAL
#define GS_MODE_PAL
PAL Full Buffer.
Definition gsInit.h:63
GS_BLEND_BACK2FRONT
#define GS_BLEND_BACK2FRONT
Blend Alpha Primitives "Back To Front".
Definition gsInit.h:145
GS_MODE_VGA_1024_70
#define GS_MODE_VGA_1024_70
VGA 1024x768 @ 70Hz.
Definition gsInit.h:87
GS_SETTING_OFF
#define GS_SETTING_OFF
Define a setting to be OFF.
Definition gsInit.h:148
GIF_TAG
#define GIF_TAG(NLOOP, EOP, PRE, PRIM, FLG, NREG)
DMA Packet Header "GIF Tag" For Packets Sent To GIF.
Definition gsInit.h:570
GS_XYOFFSET_2
#define GS_XYOFFSET_2
GS Offset Value.
Definition gsInit.h:192
GS_DIMX
#define GS_DIMX
GS Dither Matrix.
Definition gsInit.h:224
gsKit_check_rom
short int gsKit_check_rom(void)
Checks the console's capabilities based on the ROM version (returns default video format: GS_MODE_NTS...
Definition gsInit.c:28
GS_MODE_VGA_800_72
#define GS_MODE_VGA_800_72
VGA 800x600 @ 72Hz.
Definition gsInit.h:78
GS_PSM_CT24
#define GS_PSM_CT24
R8 G8 B8 (RGB24) Texture.
Definition gsInit.h:117
GS_COLCLAMP
#define GS_COLCLAMP
GS Color Clamp.
Definition gsInit.h:228
GS_SETTING_ON
#define GS_SETTING_ON
Define a setting to be ON.
Definition gsInit.h:151
GS_ZBUF_1
#define GS_ZBUF_1
GS Z Buffer (Context 1).
Definition gsInit.h:244
GS_TEXA
#define GS_TEXA
GS Texture Alpha Value.
Definition gsInit.h:210
GS_MODE_VGA_640_72
#define GS_MODE_VGA_640_72
VGA 640x480 @ 72Hz.
Definition gsInit.h:67
GS_ONESHOT
#define GS_ONESHOT
Oneshot Draw Queue.
Definition gsInit.h:26
GS_MODE_DTV_720P
#define GS_MODE_DTV_720P
DTV 720 Progressive Scan (1280x720).
Definition gsInit.h:105
GS_MODE_DTV_576P
#define GS_MODE_DTV_576P
DTV 576 Progressive Scan (720x576).
Definition gsInit.h:101
GS_ASPECT_16_9
#define GS_ASPECT_16_9
16:9 Aspect Ratio (UNUSED)
Definition gsInit.h:58
GIF_AD
#define GIF_AD
GIF_TAG Address+Data Setting. (Used after GIF_TAG).
Definition gsInit.h:494
GS_MODE_VGA_640_75
#define GS_MODE_VGA_640_75
VGA 640x480 @ 65Hz.
Definition gsInit.h:69
GS_PERSISTENT
#define GS_PERSISTENT
Persistent Draw Queue.
Definition gsInit.h:24
GS_SCISSOR_2
#define GS_SCISSOR_2
GS Scissoring Area (Context 2).
Definition gsInit.h:218
GS_SCISSOR_1
#define GS_SCISSOR_1
GS Scissoring Area (Context 1).
Definition gsInit.h:216
GS_SET_DISPFB1
#define GS_SET_DISPFB1(FBP, FBW, PSM, DBX, DBY)
GS Framebuffer Register Access Macro (Output Circuit 1).
Definition gsInit.h:684
GS_RESET
#define GS_RESET()
GS Reset Macro.
Definition gsInit.h:502
GS_TEST_1
#define GS_TEST_1
GS TEST (Context 1).
Definition gsInit.h:230
GS_SET_DISPLAY2
#define GS_SET_DISPLAY2(DX, DY, MAGH, MAGV, DW, DH)
GS Display Settings Register Access Macro (Output Circuit 2).
Definition gsInit.h:718
GS_MODE_DTV_1080I
#define GS_MODE_DTV_1080I
DTV 1080 Interlaced (1920x1080).
Definition gsInit.h:103
GS_MODE_VGA_640_85
#define GS_MODE_VGA_640_85
VGA 640x480 @ 85Hz.
Definition gsInit.h:71
GS_ALPHA_2
#define GS_ALPHA_2
GS Alpha Blending (Context 2).
Definition gsInit.h:222
GS_PSMZ_16
#define GS_PSMZ_16
RGBA16 ZBuffer.
Definition gsInit.h:138
GS_TEST_2
#define GS_TEST_2
GS TEST (Context 2).
Definition gsInit.h:232
GS_MODE_VGA_1024_60
#define GS_MODE_VGA_1024_60
VGA 1024x768 @ 60Hz.
Definition gsInit.h:85
GS_SET_BGCOLOR
#define GS_SET_BGCOLOR(R, G, B)
GS Background Color Register Access Macro.
Definition gsInit.h:731
GS_SETREG_SCISSOR_1
#define GS_SETREG_SCISSOR_1
See GS_SETREG_SCISSOR.
Definition gsInit.h:777
GS_ALPHA_1
#define GS_ALPHA_1
GS Alpha Blending (Context 1).
Definition gsInit.h:220
GS_SETREG_CLAMP
#define GS_SETREG_CLAMP(wms, wmt, minu, maxu, minv, maxv)
GS CLAMP Packing Macro.
Definition gsInit.h:790
GS_XYOFFSET_1
#define GS_XYOFFSET_1
GS Offset Value.
Definition gsInit.h:190
GS_ZBUF_2
#define GS_ZBUF_2
GS Z Buffer (Context 2).
Definition gsInit.h:246
GS_MODE_VGA_1024_75
#define GS_MODE_VGA_1024_75
VGA 1024x768 @ 75Hz.
Definition gsInit.h:89
GS_SETREG_FRAME_1
#define GS_SETREG_FRAME_1
See GS_SETREG_FRAME.
Definition gsInit.h:768
GS_MODE_VGA_1024_85
#define GS_MODE_VGA_1024_85
VGA 1024x768 @ 85Hz.
Definition gsInit.h:91
GS_INTERLACED
#define GS_INTERLACED
Interlaced Mode.
Definition gsInit.h:41
GS_FIELD
#define GS_FIELD
Field Mode - Reads Every Other Line.
Definition gsInit.h:44
GS_MODE_VGA_640_60
#define GS_MODE_VGA_640_60
VGA 640x480 @ 60Hz.
Definition gsInit.h:65
GS_SET_DISPFB2
#define GS_SET_DISPFB2(FBP, FBW, PSM, DBX, DBY)
GS Framebuffer Register Access Macro (Output Circuit 2).
Definition gsInit.h:693
GS_SETREG_DIMX
#define GS_SETREG_DIMX(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P)
GS DIMX Packing Macro from dma.h in ps2sdk.
Definition gsInit.h:808
GS_MODE_VGA_800_85
#define GS_MODE_VGA_800_85
VGA 800x600 @ 85Hz.
Definition gsInit.h:82
GS_CSR
#define GS_CSR
GS CSR (GS System Status) Register.
Definition gsInit.h:540
GS_PSM_CT16
#define GS_PSM_CT16
RGBA16 Texture.
Definition gsInit.h:119
GSKIT_GIF_FLG_PACKED
#define GSKIT_GIF_FLG_PACKED
gsKit GIFTAG data format "FLG"
Definition gsInit.h:299
gsBGColor::Green
u8 Green
Green Value.
Definition gsInit.h:818
gsBGColor::Blue
u8 Blue
Blue Value.
Definition gsInit.h:819
gsBGColor::Red
u8 Red
Red Value.
Definition gsInit.h:817
gsClamp::MAXU
int MAXU
Maximum Horizontal Clamp Value.
Definition gsInit.h:843
gsClamp::MINV
int MINV
Minimum Vertical Clamp Value.
Definition gsInit.h:844
gsClamp::WMS
u8 WMS
Wrap Mode Horizontal.
Definition gsInit.h:840
gsClamp::WMT
u8 WMT
Wrap Mode Vertical.
Definition gsInit.h:841
gsClamp::MAXV
int MAXV
Maximum Vertical Clamp Value.
Definition gsInit.h:845
gsClamp::MINU
int MINU
Minimum Horizontal Clamp Value.
Definition gsInit.h:842
gsGlobal::ActiveBuffer
u8 ActiveBuffer
Active Framebuffer.
Definition gsInit.h:916
gsGlobal::PrimAlphaEnable
int PrimAlphaEnable
Primitive Alpha Blending Enable.
Definition gsInit.h:945
gsGlobal::EvenOrOdd
u8 EvenOrOdd
Is ((GSREG*)CSR)->FIELD (Used for Interlace Correction).
Definition gsInit.h:912
gsGlobal::ZBuffering
u8 ZBuffering
Enable/Disable Z Buffering.
Definition gsInit.h:909
gsGlobal::Width
int Width
Framebuffer Width (the mode's DW is a multiple of this value).
Definition gsInit.h:918
gsGlobal::CurrentPointer
u32 CurrentPointer
Current VRAM Pointer.
Definition gsInit.h:904
gsGlobal::Field
s16 Field
Field / Frame.
Definition gsInit.h:903
gsGlobal::MagH
int MagH
X Magnification Value (MAGH = DW / Width - 1).
Definition gsInit.h:927
gsGlobal::Per_AllocSize
int Per_AllocSize
Persistent Drawbuffer Size (Per Buffer).
Definition gsInit.h:938
gsGlobal::BGColor
GSBGCOLOR * BGColor
Background Color Structure Pointer.
Definition gsInit.h:931
gsGlobal::Os_AllocSize
int Os_AllocSize
Oneshot Drawbuffer Size (Per Buffer).
Definition gsInit.h:937
gsGlobal::Dithering
u8 Dithering
Dithering (On/Off).
Definition gsInit.h:906
gsGlobal::Test
GSTEST * Test
TEST Register Value Structure Pointer.
Definition gsInit.h:932
gsGlobal::PrimContext
int PrimContext
Primitive Context.
Definition gsInit.h:942
gsGlobal::CurQueue
GSQUEUE * CurQueue
Draw Queue (Current).
Definition gsInit.h:934
gsGlobal::Aspect
int Aspect
Framebuffer Aspect Ratio (GS_ASPECT_4_3/GS_ASPECT_16_9).
Definition gsInit.h:920
gsGlobal::PSMZ
int PSMZ
ZBuffer Pixel Storage Method.
Definition gsInit.h:941
gsGlobal::TexturePointer
u32 TexturePointer
Pointer to beginning of Texture Buffer.
Definition gsInit.h:905
gsGlobal::Mode
s16 Mode
Display Mode.
Definition gsInit.h:901
gsGlobal::DoubleBuffering
u8 DoubleBuffering
Enable/Disable Double Buffering.
Definition gsInit.h:908
gsGlobal::StartYOffset
int StartYOffset
Y Starting Coordinate (Used for Placement Correction) Additional correction.
Definition gsInit.h:926
gsGlobal::StartXOffset
int StartXOffset
X Starting Coordinate (Used for Placement Correction) Additional correction.
Definition gsInit.h:925
gsGlobal::Os_Queue
GSQUEUE * Os_Queue
Draw Queue (Oneshot).
Definition gsInit.h:936
gsGlobal::OffsetX
int OffsetX
X Window Offset.
Definition gsInit.h:921
gsGlobal::DW
int DW
Total Display Area Width (DW = Width * (MAGH + 1)).
Definition gsInit.h:929
gsGlobal::ScreenBuffer
u32 ScreenBuffer[2]
Screenbuffer Pointer Array.
Definition gsInit.h:910
gsGlobal::StartX
int StartX
X Starting Coordinate (Used for Placement Correction) Default value.
Definition gsInit.h:923
gsGlobal::PSM
int PSM
Pixel Storage Method (Color Mode).
Definition gsInit.h:940
gsGlobal::DrawOrder
u8 DrawOrder
Drawing Order (GS_PER_OS/GS_OS_PER) (GS_PER_OS = Persitant objects always drawn first).
Definition gsInit.h:913
gsGlobal::MagV
int MagV
Y Magnification Value (MAGV = DH / Height - 1).
Definition gsInit.h:928
gsGlobal::Height
int Height
Framebuffer Height (the mode's DH is a multiple of this value).
Definition gsInit.h:919
gsGlobal::PrimAlpha
u64 PrimAlpha
Primitive Alpha Value.
Definition gsInit.h:946
gsGlobal::PrimFogEnable
int PrimFogEnable
Primitive Fog Enable.
Definition gsInit.h:943
gsGlobal::Clamp
GSCLAMP * Clamp
CLAMP Register Value Structure Pointer.
Definition gsInit.h:933
gsGlobal::PrimAAEnable
int PrimAAEnable
Primitive AntiAlaising Enable.
Definition gsInit.h:944
gsGlobal::OffsetY
int OffsetY
Y Window Offset.
Definition gsInit.h:922
gsGlobal::ZBuffer
u32 ZBuffer
ZBuffer Pointer.
Definition gsInit.h:911
gsGlobal::DitherMatrix
s8 DitherMatrix[16]
Dithering Matrix.
Definition gsInit.h:907
gsGlobal::FirstFrame
u8 FirstFrame
Have we executed a frame yet?
Definition gsInit.h:914
gsGlobal::DH
int DH
Total Display Area Height (DH = Height * (MAGH + 1)).
Definition gsInit.h:930
gsGlobal::Interlace
s16 Interlace
Interlace (On/Off).
Definition gsInit.h:902
gsGlobal::StartY
int StartY
Y Starting Coordinate (Used for Placement Correction) Default value.
Definition gsInit.h:924
gsGlobal::Per_Queue
GSQUEUE * Per_Queue
Draw Queue (Persistent).
Definition gsInit.h:935
gsGlobal::LockBuffer
volatile u8 LockBuffer
Used to lock the buffer so it doesn't switch.
Definition gsInit.h:917
gsTest::ATE
u8 ATE
Alpha Test Enable.
Definition gsInit.h:826
gsTest::ATST
u8 ATST
Alpha Test Method.
Definition gsInit.h:827
gsTest::ZTE
u8 ZTE
Depth Test Enable (DO NOT USE THIS - IT IS BUGGED IN PARTICULAR GS REV - SET TO 1 ALWAYS).
Definition gsInit.h:832
gsTest::DATE
u8 DATE
Destination Alpha Enable.
Definition gsInit.h:830
gsTest::DATM
u8 DATM
Destination Alpha Mode.
Definition gsInit.h:831
gsTest::ZTST
u8 ZTST
Depth Test Method.
Definition gsInit.h:833
gsTest::AREF
u8 AREF
Alpha Reference Value.
Definition gsInit.h:828
gsTest::AFAIL
u8 AFAIL
Alpha Failure Action.
Definition gsInit.h:829