/
SDL_gemvideo.c
1384 lines (1127 loc) · 31.5 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2012 Sam Lantinga
4
5
This library is free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13
Lesser General Public License for more details.
14
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
20
21
Sam Lantinga
slouken@libsdl.org
*/
22
#include "SDL_config.h"
23
24
/*
25
26
27
28
29
30
GEM video driver
Patrice Mandin
and work from
Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
*/
31
32
33
34
35
/* Mint includes */
#include <gem.h>
#include <gemx.h>
#include <mint/osbind.h>
36
#include <mint/cookie.h>
37
38
#include "SDL_endian.h"
39
40
#include "SDL_video.h"
#include "SDL_mouse.h"
41
42
43
44
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"
#include "../SDL_cursor_c.h"
45
46
47
48
49
#include "../ataricommon/SDL_ataric2p_s.h"
#include "../ataricommon/SDL_atarieddi_s.h"
#include "../ataricommon/SDL_atarimxalloc_c.h"
#include "../ataricommon/SDL_atarigl_c.h"
50
51
52
53
54
#include "SDL_gemvideo.h"
#include "SDL_gemevents_c.h"
#include "SDL_gemmouse_c.h"
#include "SDL_gemwm_c.h"
55
#include "../ataricommon/SDL_xbiosevents_c.h"
56
#include "../ataricommon/SDL_ataridevmouse_c.h"
57
58
59
/* Defines */
60
/*#define DEBUG_VIDEO_GEM 1*/
61
62
63
#define GEM_VID_DRIVER_NAME "gem"
64
65
66
67
68
#undef MIN
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
#undef MAX
#define MAX(a,b) (((a)>(b)) ? (a) : (b))
69
70
71
72
73
74
75
/* Variables */
static unsigned char vdi_index[256] = {
0, 2, 3, 6, 4, 7, 5, 8,
9, 10, 11, 14, 12, 15, 13, 255
};
76
static const char empty_name[]="";
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
/* Initialization/Query functions */
static int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat);
static SDL_Rect **GEM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
static SDL_Surface *GEM_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
static int GEM_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
static void GEM_VideoQuit(_THIS);
/* Hardware surface functions */
static int GEM_AllocHWSurface(_THIS, SDL_Surface *surface);
static int GEM_LockHWSurface(_THIS, SDL_Surface *surface);
static int GEM_FlipHWSurface(_THIS, SDL_Surface *surface);
static void GEM_UnlockHWSurface(_THIS, SDL_Surface *surface);
static void GEM_FreeHWSurface(_THIS, SDL_Surface *surface);
static void GEM_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
/* Internal functions */
static void GEM_FreeBuffers(_THIS);
95
static void GEM_ClearScreen(_THIS);
96
static void GEM_ClearRect(_THIS, short *rect);
97
static void GEM_SetNewPalette(_THIS, Uint16 newpal[256][3]);
98
99
static void GEM_LockScreen(_THIS);
static void GEM_UnlockScreen(_THIS);
100
101
static void refresh_window(_THIS, int winhandle, short *rect);
102
#if SDL_VIDEO_OPENGL
103
104
105
106
/* OpenGL functions */
static void GEM_GL_SwapBuffers(_THIS);
#endif
107
108
109
110
111
/* GEM driver bootstrap functions */
static int GEM_Available(void)
{
/* Test if AES available */
112
if (appl_init() == -1)
113
114
115
116
117
118
119
120
return 0;
appl_exit();
return 1;
}
static void GEM_DeleteDevice(SDL_VideoDevice *device)
{
121
122
SDL_free(device->hidden);
SDL_free(device);
123
124
125
126
127
}
static SDL_VideoDevice *GEM_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
128
int vectors_mask;
129
/* unsigned long dummy;*/
130
131
/* Initialize all variables that we clean on shutdown */
132
device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
133
if ( device ) {
134
SDL_memset(device, 0, (sizeof *device));
135
device->hidden = (struct SDL_PrivateVideoData *)
136
SDL_malloc((sizeof *device->hidden));
137
device->gl_data = (struct SDL_PrivateGLData *)
138
SDL_malloc((sizeof *device->gl_data));
139
140
141
142
}
if ( (device == NULL) || (device->hidden == NULL) ) {
SDL_OutOfMemory();
if ( device ) {
143
SDL_free(device);
144
145
146
}
return(0);
}
147
148
SDL_memset(device->hidden, 0, (sizeof *device->hidden));
SDL_memset(device->gl_data, 0, sizeof(*device->gl_data));
149
150
151
152
153
154
155
156
157
158
159
160
161
/* Set the function pointers */
device->VideoInit = GEM_VideoInit;
device->ListModes = GEM_ListModes;
device->SetVideoMode = GEM_SetVideoMode;
device->SetColors = GEM_SetColors;
device->UpdateRects = NULL /*GEM_UpdateRects*/;
device->VideoQuit = GEM_VideoQuit;
device->AllocHWSurface = GEM_AllocHWSurface;
device->LockHWSurface = GEM_LockHWSurface;
device->UnlockHWSurface = GEM_UnlockHWSurface;
device->FlipHWSurface = GEM_FlipHWSurface;
device->FreeHWSurface = GEM_FreeHWSurface;
162
device->ToggleFullScreen = NULL;
163
164
165
/* Window manager */
device->SetCaption = GEM_SetCaption;
166
device->SetIcon = GEM_SetIcon;
167
168
169
170
171
172
173
174
175
176
177
device->IconifyWindow = GEM_IconifyWindow;
device->GrabInput = GEM_GrabInput;
/* Events */
device->InitOSKeymap = GEM_InitOSKeymap;
device->PumpEvents = GEM_PumpEvents;
/* Mouse */
device->FreeWMCursor = GEM_FreeWMCursor;
device->CreateWMCursor = GEM_CreateWMCursor;
device->ShowWMCursor = GEM_ShowWMCursor;
178
device->WarpWMCursor = NULL /*GEM_WarpWMCursor*/;
179
180
device->CheckMouseMode = GEM_CheckMouseMode;
181
#if SDL_VIDEO_OPENGL
182
/* OpenGL functions */
183
184
185
186
device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary;
device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress;
device->GL_GetAttribute = SDL_AtariGL_GetAttribute;
device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent;
187
188
189
device->GL_SwapBuffers = GEM_GL_SwapBuffers;
#endif
190
191
192
193
194
195
196
device->hidden->use_dev_mouse =
(SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE;
vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
if (!(device->hidden->use_dev_mouse)) {
vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
}
197
/* if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
198
vectors_mask = 0;
199
}*/
200
201
SDL_AtariXbios_InstallVectors(vectors_mask);
202
203
204
205
206
207
208
209
210
211
212
213
214
215
device->free = GEM_DeleteDevice;
return device;
}
VideoBootStrap GEM_bootstrap = {
GEM_VID_DRIVER_NAME, "Atari GEM video driver",
GEM_Available, GEM_CreateDevice
};
static void VDI_ReadExtInfo(_THIS, short *work_out)
{
unsigned long EdDI_version;
216
long cookie_EdDI;
217
Uint16 clut_type;
218
219
/* Read EdDI informations */
220
if (Getcookie(C_EdDI, &cookie_EdDI) != C_FOUND) {
221
222
return;
}
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
EdDI_version = Atari_get_EdDI_version( (void *)cookie_EdDI);
vq_scrninfo(VDI_handle, work_out);
VDI_format = work_out[0];
clut_type = work_out[1];
/* With EdDI>=1.1, we can have screen pitch, address and format
* so we can directly write to screen without using vro_cpyfm
*/
if (EdDI_version >= EDDI_11) {
VDI_pitch = work_out[5];
VDI_screen = (void *) *((unsigned long *) &work_out[6]);
}
switch(clut_type) {
case VDI_CLUT_HARDWARE:
{
int i;
Uint16 *tmp_p;
tmp_p = (Uint16 *)&work_out[16];
for (i=0;i<256;i++) {
248
vdi_index[*tmp_p++] = i;
249
250
251
252
}
}
break;
case VDI_CLUT_SOFTWARE:
253
{
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
int component; /* red, green, blue, alpha, overlay */
int num_bit;
unsigned short *tmp_p;
/* We can build masks with info here */
tmp_p = (unsigned short *) &work_out[16];
for (component=0;component<5;component++) {
for (num_bit=0;num_bit<16;num_bit++) {
unsigned short valeur;
valeur = *tmp_p++;
if (valeur == 0xffff) {
continue;
}
switch(component) {
case 0:
VDI_redmask |= 1<< valeur;
break;
case 1:
VDI_greenmask |= 1<< valeur;
break;
case 2:
VDI_bluemask |= 1<< valeur;
break;
case 3:
VDI_alphamask |= 1<< valeur;
break;
}
}
}
286
}
287
288
289
290
/* Remove lower green bits for Intel endian screen */
if ((VDI_greenmask == ((7<<13)|3)) || (VDI_greenmask == ((7<<13)|7))) {
VDI_greenmask &= ~(7<<13);
291
292
293
294
295
296
297
298
299
}
break;
case VDI_CLUT_NONE:
break;
}
}
int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
300
int i, menubar_size;
301
302
303
short work_in[12], work_out[272], dummy;
/* Open AES (Application Environment Services) */
304
305
GEM_ap_id = appl_init();
if (GEM_ap_id == -1) {
306
307
308
309
310
fprintf(stderr,"Can not open AES\n");
return 1;
}
/* Read version and features */
311
312
313
GEM_version = aes_global[0];
if (GEM_version >= 0x0410) {
short ap_gout[4], errorcode;
314
315
GEM_wfeatures=0;
316
317
318
errorcode=appl_getinfo(AES_WINDOW, &ap_gout[0], &ap_gout[1], &ap_gout[2], &ap_gout[3]);
if (errorcode==0) {
319
GEM_wfeatures=ap_gout[0];
320
}
321
}
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
/* Ask VDI physical workstation handle opened by AES */
VDI_handle = graf_handle(&dummy, &dummy, &dummy, &dummy);
if (VDI_handle<1) {
fprintf(stderr,"Wrong VDI handle %d returned by AES\n",VDI_handle);
return 1;
}
/* Open virtual VDI workstation */
work_in[0]=Getrez()+2;
for(i = 1; i < 10; i++)
work_in[i] = 1;
work_in[10] = 2;
v_opnvwk(work_in, &VDI_handle, work_out);
if (VDI_handle == 0) {
fprintf(stderr,"Can not open VDI virtual workstation\n");
return 1;
}
/* Read fullscreen size */
VDI_w = work_out[0] + 1;
VDI_h = work_out[1] + 1;
/* Read desktop size and position */
if (!wind_get(DESKTOP_HANDLE, WF_WORKXYWH, &GEM_desk_x, &GEM_desk_y, &GEM_desk_w, &GEM_desk_h)) {
fprintf(stderr,"Can not read desktop properties\n");
return 1;
}
352
353
354
355
356
GEM_work_x = GEM_desk_x;
GEM_work_y = GEM_desk_y;
GEM_work_w = GEM_desk_w;
GEM_work_h = GEM_desk_h;
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
/* Read bit depth */
vq_extnd(VDI_handle, 1, work_out);
VDI_bpp = work_out[4];
VDI_oldnumcolors=0;
switch(VDI_bpp) {
case 8:
VDI_pixelsize=1;
break;
case 15:
case 16:
VDI_pixelsize=2;
break;
case 24:
VDI_pixelsize=3;
break;
case 32:
VDI_pixelsize=4;
break;
default:
fprintf(stderr,"%d bits colour depth not supported\n",VDI_bpp);
return 1;
}
/* Setup hardware -> VDI palette mapping */
for(i = 16; i < 255; i++) {
vdi_index[i] = i;
}
vdi_index[255] = 1;
/* Save current palette */
if (VDI_bpp>8) {
VDI_oldnumcolors=1<<8;
} else {
VDI_oldnumcolors=1<<VDI_bpp;
}
393
394
395
396
397
398
399
400
401
402
for(i = 0; i < VDI_oldnumcolors; i++) {
short rgb[3];
vq_color(VDI_handle, i, 0, rgb);
VDI_oldpalette[i][0] = rgb[0];
VDI_oldpalette[i][1] = rgb[1];
VDI_oldpalette[i][2] = rgb[2];
}
403
VDI_setpalette = GEM_SetNewPalette;
404
SDL_memcpy(VDI_curpalette,VDI_oldpalette,sizeof(VDI_curpalette));
405
406
407
408
409
410
411
412
/* Setup screen info */
GEM_title_name = empty_name;
GEM_icon_name = empty_name;
GEM_handle = -1;
GEM_locked = SDL_FALSE;
GEM_win_fulled = SDL_FALSE;
413
GEM_fullscreen = SDL_FALSE;
414
GEM_lock_redraw = SDL_TRUE; /* Prevent redraw till buffers are setup */
415
416
VDI_screen = NULL;
417
418
419
420
421
422
423
424
425
426
427
428
VDI_pitch = VDI_w * VDI_pixelsize;
VDI_format = ( (VDI_bpp <= 8) ? VDI_FORMAT_INTER : VDI_FORMAT_PACK);
VDI_redmask = VDI_greenmask = VDI_bluemask = VDI_alphamask = 0;
VDI_ReadExtInfo(this, work_out);
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: screen: address=0x%08x, pitch=%d\n", VDI_screen, VDI_pitch);
printf("sdl:video:gem: format=%d\n", VDI_format);
printf("sdl:video:gem: masks: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
VDI_alphamask, VDI_redmask, VDI_greenmask, VDI_bluemask
);
#endif
429
430
431
432
/* Setup destination mfdb */
VDI_dst_mfdb.fd_addr = NULL;
433
434
435
/* Determine the current screen size */
this->info.current_w = VDI_w;
this->info.current_h = VDI_h;
436
437
438
439
440
441
442
/* Determine the screen depth */
/* we change this during the SDL_SetVideoMode implementation... */
vformat->BitsPerPixel = VDI_bpp;
/* Set mouse cursor to arrow */
graf_mouse(ARROW, NULL);
443
GEM_cursor = NULL;
444
445
/* Init chunky to planar routine */
446
447
448
449
450
451
452
SDL_Atari_C2pConvert = SDL_Atari_C2pConvert8;
/* Setup VDI fill functions */
vsf_color(VDI_handle,0);
vsf_interior(VDI_handle,1);
vsf_perimeter(VDI_handle,0);
453
454
455
456
/* Menu bar save buffer */
menubar_size = GEM_desk_w * GEM_desk_y * VDI_pixelsize;
GEM_menubar=Atari_SysMalloc(menubar_size,MX_PREFTTRAM);
457
/* Fill video modes list */
458
SDL_modelist[0] = SDL_malloc(sizeof(SDL_Rect));
459
460
461
462
463
464
465
SDL_modelist[0]->x = 0;
SDL_modelist[0]->y = 0;
SDL_modelist[0]->w = VDI_w;
SDL_modelist[0]->h = VDI_h;
SDL_modelist[1] = NULL;
466
#if SDL_VIDEO_OPENGL
467
SDL_AtariGL_InitPointers(this);
468
#endif
469
470
this->info.wm_available = 1;
471
472
473
474
475
476
477
/* We're done! */
return(0);
}
SDL_Rect **GEM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
{
478
if (format->BitsPerPixel != VDI_bpp) {
479
480
return ((SDL_Rect **)NULL);
}
481
482
483
484
485
486
if (flags & SDL_FULLSCREEN) {
return (SDL_modelist);
}
return((SDL_Rect **)-1);
487
488
489
490
491
}
static void GEM_FreeBuffers(_THIS)
{
/* Release buffer */
492
if ( GEM_buffer2 ) {
493
Mfree( GEM_buffer2 );
494
495
496
497
GEM_buffer2=NULL;
}
if ( GEM_buffer1 ) {
498
Mfree( GEM_buffer1 );
499
GEM_buffer1=NULL;
500
501
502
}
}
503
void GEM_ClearRect(_THIS, short *rect)
504
{
505
short oldrgb[3], rgb[3]={0,0,0};
506
507
508
509
510
511
512
vq_color(VDI_handle, vdi_index[0], 0, oldrgb);
vs_color(VDI_handle, vdi_index[0], rgb);
vsf_color(VDI_handle,0);
vsf_interior(VDI_handle,1);
vsf_perimeter(VDI_handle,0);
513
v_bar(VDI_handle, rect);
514
515
vs_color(VDI_handle, vdi_index[0], oldrgb);
516
517
518
519
520
521
522
523
524
525
526
}
static void GEM_ClearScreen(_THIS)
{
short pxy[4];
v_hide_c(VDI_handle);
pxy[0] = pxy[1] = 0;
pxy[2] = VDI_w - 1;
pxy[3] = VDI_h - 1;
527
GEM_ClearRect(this, pxy);
528
529
530
531
v_show_c(VDI_handle, 1);
}
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
static void GEM_SetNewPalette(_THIS, Uint16 newpal[256][3])
{
int i;
short rgb[3];
if (VDI_oldnumcolors==0)
return;
for(i = 0; i < VDI_oldnumcolors; i++) {
rgb[0] = newpal[i][0];
rgb[1] = newpal[i][1];
rgb[2] = newpal[i][2];
vs_color(VDI_handle, i, rgb);
}
}
549
550
551
552
553
554
static void GEM_LockScreen(_THIS)
{
if (!GEM_locked) {
/* Lock AES */
wind_update(BEG_UPDATE);
wind_update(BEG_MCTRL);
555
556
/* Reserve memory space, used to be sure of compatibility */
form_dial( FMD_START, 0,0,0,0, 0,0,VDI_w,VDI_h);
557
558
559
560
561
562
563
564
565
/* Save menu bar */
if (GEM_menubar) {
MFDB mfdb_src;
short blitcoords[8];
mfdb_src.fd_addr=GEM_menubar;
mfdb_src.fd_w=GEM_desk_w;
mfdb_src.fd_h=GEM_desk_y;
566
mfdb_src.fd_wdwidth=GEM_desk_w>>4;
567
568
569
570
571
572
573
574
575
576
577
578
579
580
mfdb_src.fd_nplanes=VDI_bpp;
mfdb_src.fd_stand=
mfdb_src.fd_r1=
mfdb_src.fd_r2=
mfdb_src.fd_r3= 0;
blitcoords[0] = blitcoords[4] = 0;
blitcoords[1] = blitcoords[5] = 0;
blitcoords[2] = blitcoords[6] = GEM_desk_w-1;
blitcoords[3] = blitcoords[7] = GEM_desk_y-1;
vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &VDI_dst_mfdb, &mfdb_src);
}
581
582
583
584
585
586
587
GEM_locked=SDL_TRUE;
}
}
static void GEM_UnlockScreen(_THIS)
{
if (GEM_locked) {
588
589
590
591
592
593
594
595
/* Restore menu bar */
if (GEM_menubar) {
MFDB mfdb_src;
short blitcoords[8];
mfdb_src.fd_addr=GEM_menubar;
mfdb_src.fd_w=GEM_desk_w;
mfdb_src.fd_h=GEM_desk_y;
596
mfdb_src.fd_wdwidth=GEM_desk_w>>4;
597
598
599
600
601
602
603
604
605
606
607
608
609
610
mfdb_src.fd_nplanes=VDI_bpp;
mfdb_src.fd_stand=
mfdb_src.fd_r1=
mfdb_src.fd_r2=
mfdb_src.fd_r3= 0;
blitcoords[0] = blitcoords[4] = 0;
blitcoords[1] = blitcoords[5] = 0;
blitcoords[2] = blitcoords[6] = GEM_desk_w-1;
blitcoords[3] = blitcoords[7] = GEM_desk_y-1;
vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &mfdb_src, &VDI_dst_mfdb);
}
611
612
613
614
615
616
617
618
619
620
/* Restore screen memory, and send REDRAW to all apps */
form_dial( FMD_FINISH, 0,0,0,0, 0,0,VDI_w,VDI_h);
/* Unlock AES */
wind_update(END_MCTRL);
wind_update(END_UPDATE);
GEM_locked=SDL_FALSE;
}
}
621
622
623
624
SDL_Surface *GEM_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
Uint32 modeflags, screensize;
625
SDL_bool use_shadow1, use_shadow2;
626
627
/* width must be multiple of 16, for vro_cpyfm() and c2p_convert() */
628
if ((width & 15) != 0) {
629
630
631
width = (width | 15) +1;
}
632
633
634
/*--- Verify if asked mode can be used ---*/
if (VDI_bpp != bpp) {
SDL_SetError("%d bpp mode not supported", bpp);
635
636
637
return(NULL);
}
638
639
640
641
642
643
644
if (flags & SDL_FULLSCREEN) {
if ((VDI_w < width) || (VDI_h < height)) {
SDL_SetError("%dx%d mode is too large", width, height);
return(NULL);
}
}
645
646
647
648
649
650
/*--- Allocate the new pixel format for the screen ---*/
if ( ! SDL_ReallocFormat(current, VDI_bpp, VDI_redmask, VDI_greenmask, VDI_bluemask, VDI_alphamask) ) {
SDL_SetError("Couldn't allocate new pixel format for requested mode");
return(NULL);
}
651
652
screensize = width * height * VDI_pixelsize;
653
654
655
656
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: setvideomode(): %dx%dx%d = %d\n", width, height, bpp, screensize);
#endif
657
/*--- Allocate shadow buffers if needed, and conversion operations ---*/
658
659
GEM_FreeBuffers(this);
660
661
662
663
664
665
GEM_bufops=0;
use_shadow1=use_shadow2=SDL_FALSE;
if (VDI_screen && (flags & SDL_FULLSCREEN)) {
if (VDI_format==VDI_FORMAT_INTER) {
use_shadow1=SDL_TRUE;
GEM_bufops = B2S_C2P_1TOS;
666
667
}
} else {
668
669
670
671
672
673
674
use_shadow1=SDL_TRUE;
if (VDI_format==VDI_FORMAT_PACK) {
GEM_bufops = B2S_VROCPYFM_1TOS;
} else {
use_shadow2=SDL_TRUE;
GEM_bufops = B2S_C2P_1TO2|B2S_VROCPYFM_2TOS;
}
675
676
}
677
678
679
if (use_shadow1) {
GEM_buffer1 = Atari_SysMalloc(screensize, MX_PREFTTRAM);
if (GEM_buffer1==NULL) {
680
SDL_SetError("Can not allocate %d KB for frame buffer", screensize>>10);
681
682
return NULL;
}
683
SDL_memset(GEM_buffer1, 0, screensize);
684
685
686
687
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: setvideomode(): allocated buffer 1\n");
#endif
}
688
689
690
691
if (use_shadow2) {
GEM_buffer2 = Atari_SysMalloc(screensize, MX_PREFTTRAM);
if (GEM_buffer2==NULL) {
692
SDL_SetError("Can not allocate %d KB for shadow buffer", screensize>>10);
693
694
return NULL;
}
695
SDL_memset(GEM_buffer2, 0, screensize);
696
697
698
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: setvideomode(): allocated buffer 2\n");
#endif
699
700
701
}
/*--- Initialize screen ---*/
702
modeflags = SDL_PREALLOC;
703
704
705
706
if (VDI_bpp == 8) {
modeflags |= SDL_HWPALETTE;
}
707
if (flags & SDL_FULLSCREEN) {
708
GEM_LockScreen(this);
709
710
GEM_ClearScreen(this);
711
712
modeflags |= SDL_FULLSCREEN;
713
if (VDI_screen && (VDI_format==VDI_FORMAT_PACK) && !use_shadow1) {
714
715
716
717
modeflags |= SDL_HWSURFACE;
} else {
modeflags |= SDL_SWSURFACE;
}
718
719
GEM_fullscreen = SDL_TRUE;
720
} else {
721
int old_win_type;
722
723
short x2,y2,w2,h2;
724
GEM_UnlockScreen(this);
725
726
/* Set window gadgets */
727
old_win_type = GEM_win_type;
728
729
730
731
732
733
734
735
736
737
if (!(flags & SDL_NOFRAME)) {
GEM_win_type=NAME|MOVER|CLOSER|SMALLER;
if (flags & SDL_RESIZABLE) {
GEM_win_type |= FULLER|SIZER;
modeflags |= SDL_RESIZABLE;
}
} else {
GEM_win_type=0;
modeflags |= SDL_NOFRAME;
}
738
modeflags |= SDL_SWSURFACE;
739
740
/* Recreate window ? only for different widget or non-created window */
741
if ((old_win_type != GEM_win_type) || (GEM_handle < 0)) {
742
743
744
745
746
747
/* Calculate window size */
if (!wind_calc(WC_BORDER, GEM_win_type, 0,0,width,height, &x2,&y2,&w2,&h2)) {
GEM_FreeBuffers(this);
SDL_SetError("Can not calculate window attributes");
return NULL;
}
748
749
/* Center window */
750
751
752
753
754
755
756
757
758
759
x2 = (GEM_desk_w-w2)>>1;
y2 = (GEM_desk_h-h2)>>1;
if (x2<0) {
x2 = 0;
}
if (y2<0) {
y2 = 0;
}
x2 += GEM_desk_x;
y2 += GEM_desk_y;
760
761
762
763
/* Align work area on 16 pixels boundary (faster for bitplanes modes) */
wind_calc(WC_WORK, GEM_win_type, x2,y2,w2,h2, &x2,&y2,&w2,&h2);
x2 &= -16;
764
765
x2 -= 8;
w2 += 16;
766
767
wind_calc(WC_BORDER, GEM_win_type, x2,y2,w2,h2, &x2,&y2,&w2,&h2);
768
769
770
771
772
773
774
775
776
777
778
779
780
/* Destroy existing window */
if (GEM_handle >= 0) {
wind_close(GEM_handle);
wind_delete(GEM_handle);
}
/* Create window */
GEM_handle=wind_create(GEM_win_type, x2,y2,w2,h2);
if (GEM_handle<0) {
GEM_FreeBuffers(this);
SDL_SetError("Can not create window");
return NULL;
}
781
782
#ifdef DEBUG_VIDEO_GEM
783
printf("sdl:video:gem: handle=%d\n", GEM_handle);
784
785
#endif
786
/* Setup window name */
787
788
789
790
wind_set(GEM_handle,WF_NAME,
(short)(((unsigned long)GEM_title_name)>>16),
(short)(((unsigned long)GEM_title_name) & 0xffff),
0,0);
791
GEM_refresh_name = SDL_FALSE;
792
793
794
/* Open the window */
wind_open(GEM_handle,x2,y2,w2,h2);
795
} else {
796
797
798
799
/* Resize window to fit asked video mode */
wind_get (GEM_handle, WF_WORKXYWH, &x2,&y2,&w2,&h2);
if (wind_calc(WC_BORDER, GEM_win_type, x2,y2,width,height, &x2,&y2,&w2,&h2)) {
wind_set (GEM_handle, WF_CURRXYWH, x2,y2,w2,h2);
800
}
801
}
802
803
GEM_align_work_area(this, GEM_handle, 0);
804
GEM_fullscreen = SDL_FALSE;
805
806
807
808
809
}
/* Set up the new mode framebuffer */
current->w = width;
current->h = height;
810
811
if (use_shadow1) {
current->pixels = GEM_buffer1;
812
current->pitch = width * VDI_pixelsize;
813
814
815
816
817
} else {
current->pixels = VDI_screen;
current->pitch = VDI_pitch;
}
818
#if SDL_VIDEO_OPENGL
819
if (flags & SDL_OPENGL) {
820
if (!SDL_AtariGL_Init(this, current)) {
821
GEM_FreeBuffers(this);
822
823
SDL_SetError("Can not create OpenGL context");
return NULL;
824
825
826
827
828
829
830
831
}
modeflags |= SDL_OPENGL;
}
#endif
current->flags = modeflags;
832
833
834
835
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: surface: %dx%d\n", current->w, current->h);
#endif
836
this->UpdateRects = GEM_UpdateRects;
837
GEM_lock_redraw = SDL_FALSE; /* Enable redraw */
838
839
840
841
842
/* We're done */
return(current);
}
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
void GEM_align_work_area(_THIS, short windowid, int clear_pads)
{
int new_x, new_w;
wind_get(windowid, WF_WORKXYWH, &GEM_work_x,&GEM_work_y,&GEM_work_w,&GEM_work_h);
/* Align work area on 16 pixels boundary (faster for bitplanes modes) */
new_x = GEM_work_x;
if (new_x & 15) {
new_x = (new_x|15)+1;
}
new_w = GEM_work_w;
new_w -= (new_x - GEM_work_x);
new_w &= -16;
if (clear_pads) {
short pxy[4];
pxy[1] = GEM_work_y;
pxy[3] = pxy[1] + GEM_work_h - 1;
/* Left padding */
pxy[0] = GEM_work_x;
pxy[2] = new_x - 1;
if (pxy[0]<=pxy[2]) {
GEM_ClearRect(this, pxy);
}
/* Right padding */
pxy[0] = new_x + new_w;
pxy[2] = GEM_work_x + GEM_work_w - 1;
if (pxy[0]<=pxy[2]) {
GEM_ClearRect(this, pxy);
}
}
GEM_work_w = new_w;
GEM_work_x = new_x;
}
883
884
885
886
static int GEM_AllocHWSurface(_THIS, SDL_Surface *surface)
{
return -1;
}
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
static void GEM_FreeHWSurface(_THIS, SDL_Surface *surface)
{
return;
}
static int GEM_LockHWSurface(_THIS, SDL_Surface *surface)
{
return(0);
}
static void GEM_UnlockHWSurface(_THIS, SDL_Surface *surface)
{
return;
}
static void GEM_UpdateRectsFullscreen(_THIS, int numrects, SDL_Rect *rects)
{
SDL_Surface *surface;
906
int i, surf_width;
907
908
surface = this->screen;
909
910
/* Need to be a multiple of 16 pixels */
surf_width=surface->w;
911
if ((surf_width & 15) != 0) {
912
913
surf_width = (surf_width | 15) + 1;
}
914
915
916
917
918
919
if (GEM_bufops & (B2S_C2P_1TO2|B2S_C2P_1TOS)) {
void *destscr;
int destpitch;
if (GEM_bufops & B2S_C2P_1TOS) {
920
destscr = VDI_screen;
921
922
923
924
925
destpitch = VDI_pitch;
} else {
destscr = GEM_buffer2;
destpitch = surface->pitch;
}
926
927
928
929
for (i=0;i<numrects;i++) {
void *source,*destination;
int x1,x2;
930
931
932
933
934
x1 = rects[i].x & ~15;
x2 = rects[i].x+rects[i].w;
if (x2 & 15) {
x2 = (x2 | 15) +1;
935
936
}
937
938
939
source = surface->pixels;
source += surface->pitch * rects[i].y;
source += x1;
940
941
942
943
944
945
946
947
948
949
950
destination = destscr;
destination += destpitch * rects[i].y;
destination += x1;
SDL_Atari_C2pConvert(
source, destination,
x2-x1, rects[i].h,
SDL_FALSE,
surface->pitch, destpitch
);
951
952
}
}
953
954
955
956
if (GEM_bufops & (B2S_VROCPYFM_1TOS|B2S_VROCPYFM_2TOS)) {
MFDB mfdb_src;
short blitcoords[8];
957
958
mfdb_src.fd_addr=surface->pixels;
959
mfdb_src.fd_w=surf_width;
960
mfdb_src.fd_h=surface->h;
961
mfdb_src.fd_wdwidth= (surface->pitch/VDI_pixelsize) >> 4;
962
963
964
965
966
967
968
969
mfdb_src.fd_nplanes=surface->format->BitsPerPixel;
mfdb_src.fd_stand=
mfdb_src.fd_r1=
mfdb_src.fd_r2=
mfdb_src.fd_r3= 0;
if (GEM_bufops & B2S_VROCPYFM_2TOS) {
mfdb_src.fd_addr=GEM_buffer2;
}
970
971
for ( i=0; i<numrects; ++i ) {
972
973
974
975
blitcoords[0] = blitcoords[4] = rects[i].x;
blitcoords[1] = blitcoords[5] = rects[i].y;
blitcoords[2] = blitcoords[6] = rects[i].x + rects[i].w - 1;
blitcoords[3] = blitcoords[7] = rects[i].y + rects[i].h - 1;
976
977
978
vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &mfdb_src, &VDI_dst_mfdb);
}
979
}
980
981
982
983
}
static void GEM_UpdateRectsWindowed(_THIS, int numrects, SDL_Rect *rects)
{
984
short pxy[4];
985
986
987
int i;
for ( i=0; i<numrects; ++i ) {
988
989
pxy[0] = GEM_work_x + rects[i].x;
pxy[1] = GEM_work_y + rects[i].y;
990
991
992
993
994
995
996
997
998
999
1000
pxy[2] = rects[i].w;
pxy[3] = rects[i].h;
GEM_wind_redraw(this, GEM_handle, pxy);
}
}
static void GEM_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
{
SDL_Surface *surface;