/
SDL_gemvideo.c
1335 lines (1087 loc) · 30.5 KB
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2006 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
22
23
Sam Lantinga
slouken@libsdl.org
*/
/*
24
25
26
27
28
29
GEM video driver
Patrice Mandin
and work from
Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
*/
30
31
32
33
34
35
36
37
38
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/* Mint includes */
#include <gem.h>
#include <gemx.h>
#include <mint/osbind.h>
39
#include <mint/cookie.h>
40
41
42
43
44
#include "SDL.h"
#include "SDL_error.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
45
#include "SDL_endian.h"
46
47
48
#include "SDL_sysvideo.h"
#include "SDL_pixels_c.h"
#include "SDL_events_c.h"
49
#include "SDL_cursor_c.h"
50
51
52
53
#include "SDL_ataric2p_s.h"
#include "SDL_atarieddi_s.h"
#include "SDL_atarimxalloc_c.h"
54
55
#include "SDL_atarigl_c.h"
56
57
58
59
#include "SDL_gemvideo.h"
#include "SDL_gemevents_c.h"
#include "SDL_gemmouse_c.h"
#include "SDL_gemwm_c.h"
60
#include "SDL_xbiosevents_c.h"
61
62
63
/* Defines */
64
/*#define DEBUG_VIDEO_GEM 1*/
65
66
67
#define GEM_VID_DRIVER_NAME "gem"
68
69
70
71
72
#undef MIN
#define MIN(a,b) (((a)<(b)) ? (a) : (b))
#undef MAX
#define MAX(a,b) (((a)>(b)) ? (a) : (b))
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
/* Variables */
static unsigned char vdi_index[256] = {
0, 2, 3, 6, 4, 7, 5, 8,
9, 10, 11, 14, 12, 15, 13, 255
};
static const unsigned char empty_name[]="";
/* 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);
#if 0
static int GEM_ToggleFullScreen(_THIS, int on);
#endif
/* Internal functions */
static void GEM_FreeBuffers(_THIS);
102
static void GEM_ClearScreen(_THIS);
103
static void GEM_ClearRect(_THIS, short *rect);
104
static void GEM_SetNewPalette(_THIS, Uint16 newpal[256][3]);
105
106
static void GEM_LockScreen(_THIS);
static void GEM_UnlockScreen(_THIS);
107
108
static void refresh_window(_THIS, int winhandle, short *rect);
109
110
111
112
113
#ifdef HAVE_OPENGL
/* OpenGL functions */
static void GEM_GL_SwapBuffers(_THIS);
#endif
114
115
116
117
118
/* GEM driver bootstrap functions */
static int GEM_Available(void)
{
/* Test if AES available */
119
if (appl_init() == -1)
120
121
122
123
124
125
126
127
return 0;
appl_exit();
return 1;
}
static void GEM_DeleteDevice(SDL_VideoDevice *device)
{
128
129
SDL_free(device->hidden);
SDL_free(device);
130
131
132
133
134
}
static SDL_VideoDevice *GEM_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
135
136
int vectors_mask;
unsigned long dummy;
137
138
/* Initialize all variables that we clean on shutdown */
139
device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
140
if ( device ) {
141
SDL_memset(device, 0, (sizeof *device));
142
device->hidden = (struct SDL_PrivateVideoData *)
143
SDL_malloc((sizeof *device->hidden));
144
device->gl_data = (struct SDL_PrivateGLData *)
145
SDL_malloc((sizeof *device->gl_data));
146
147
148
149
}
if ( (device == NULL) || (device->hidden == NULL) ) {
SDL_OutOfMemory();
if ( device ) {
150
SDL_free(device);
151
152
153
}
return(0);
}
154
155
SDL_memset(device->hidden, 0, (sizeof *device->hidden));
SDL_memset(device->gl_data, 0, sizeof(*device->gl_data));
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
/* 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;
device->ToggleFullScreen = NULL /*GEM_ToggleFullScreen*/;
/* Window manager */
device->SetCaption = GEM_SetCaption;
173
device->SetIcon = GEM_SetIcon;
174
175
176
177
178
179
180
181
182
183
184
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;
185
device->WarpWMCursor = NULL /*GEM_WarpWMCursor*/;
186
187
device->CheckMouseMode = GEM_CheckMouseMode;
188
189
#ifdef HAVE_OPENGL
/* OpenGL functions */
190
191
192
193
device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary;
device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress;
device->GL_GetAttribute = SDL_AtariGL_GetAttribute;
device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent;
194
195
196
device->GL_SwapBuffers = GEM_GL_SwapBuffers;
#endif
197
/* Joystick + Mouse relative motion */
198
199
200
201
202
203
vectors_mask = ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS;
if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
vectors_mask = 0;
}
SDL_AtariXbios_InstallVectors(vectors_mask);
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
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
248
249
250
251
252
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;
unsigned long cookie_EdDI;
Uint32 num_colours;
Uint16 clut_type, num_bits;
/* Read EdDI informations */
if (Getcookie(C_EdDI, &cookie_EdDI) == C_NOTFOUND) {
return;
}
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];
num_bits = work_out[2];
num_colours = *((Uint32 *) &work_out[3]);
/* 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++) {
253
vdi_index[*tmp_p++] = i;
254
255
256
257
}
}
break;
case VDI_CLUT_SOFTWARE:
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
286
287
288
289
290
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;
}
}
}
291
}
292
293
294
295
/* Remove lower green bits for Intel endian screen */
if ((VDI_greenmask == ((7<<13)|3)) || (VDI_greenmask == ((7<<13)|7))) {
VDI_greenmask &= ~(7<<13);
296
297
298
299
300
301
302
303
304
}
break;
case VDI_CLUT_NONE:
break;
}
}
int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
305
int i, menubar_size;
306
307
308
short work_in[12], work_out[272], dummy;
/* Open AES (Application Environment Services) */
309
if (appl_init() == -1) {
310
311
312
313
314
fprintf(stderr,"Can not open AES\n");
return 1;
}
/* Read version and features */
315
316
317
GEM_version = aes_global[0];
if (GEM_version >= 0x0410) {
short ap_gout[4], errorcode;
318
319
GEM_wfeatures=0;
320
321
322
errorcode=appl_getinfo(AES_WINDOW, &ap_gout[0], &ap_gout[1], &ap_gout[2], &ap_gout[3]);
if (errorcode==0) {
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
352
353
354
355
356
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
393
394
395
396
397
398
399
400
401
GEM_wfeatures=ap_gout[0];
}
}
/* 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;
}
/* 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;
}
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];
}
402
VDI_setpalette = GEM_SetNewPalette;
403
SDL_memcpy(VDI_curpalette,VDI_oldpalette,sizeof(VDI_curpalette));
404
405
406
407
408
409
410
411
/* 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;
412
GEM_fullscreen = SDL_FALSE;
413
GEM_lock_redraw = SDL_TRUE; /* Prevent redraw till buffers are setup */
414
415
VDI_screen = NULL;
416
417
418
419
420
421
422
423
424
425
426
427
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
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
/* Setup destination mfdb */
VDI_dst_mfdb.fd_addr = NULL;
/* Update hardware info */
this->info.hw_available = 0;
this->info.video_mem = 0;
/* 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);
/* Init chunky to planar routine */
444
445
446
447
448
449
450
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);
451
452
453
454
/* Menu bar save buffer */
menubar_size = GEM_desk_w * GEM_desk_y * VDI_pixelsize;
GEM_menubar=Atari_SysMalloc(menubar_size,MX_PREFTTRAM);
455
/* Fill video modes list */
456
SDL_modelist[0] = SDL_malloc(sizeof(SDL_Rect));
457
458
459
460
461
462
463
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;
464
465
#ifdef HAVE_OPENGL
SDL_AtariGL_InitPointers(this);
466
#endif
467
468
469
470
471
472
473
/* We're done! */
return(0);
}
SDL_Rect **GEM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
{
474
if (format->BitsPerPixel != VDI_bpp) {
475
476
return ((SDL_Rect **)NULL);
}
477
478
479
480
481
482
if (flags & SDL_FULLSCREEN) {
return (SDL_modelist);
}
return((SDL_Rect **)-1);
483
484
485
486
487
}
static void GEM_FreeBuffers(_THIS)
{
/* Release buffer */
488
if ( GEM_buffer2 ) {
489
Mfree( GEM_buffer2 );
490
491
492
493
GEM_buffer2=NULL;
}
if ( GEM_buffer1 ) {
494
Mfree( GEM_buffer1 );
495
GEM_buffer1=NULL;
496
497
498
}
}
499
static void GEM_ClearRect(_THIS, short *rect)
500
{
501
short oldrgb[3], rgb[3]={0,0,0};
502
503
504
505
506
507
508
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);
509
v_bar(VDI_handle, rect);
510
511
vs_color(VDI_handle, vdi_index[0], oldrgb);
512
513
514
515
516
517
518
519
520
521
522
523
}
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;
GEM_ClearRect(this, pxy);
524
525
526
527
v_show_c(VDI_handle, 1);
}
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
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);
}
}
545
546
547
548
549
550
static void GEM_LockScreen(_THIS)
{
if (!GEM_locked) {
/* Lock AES */
wind_update(BEG_UPDATE);
wind_update(BEG_MCTRL);
551
552
/* Reserve memory space, used to be sure of compatibility */
form_dial( FMD_START, 0,0,0,0, 0,0,VDI_w,VDI_h);
553
554
555
556
557
558
559
560
561
/* 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;
562
mfdb_src.fd_wdwidth=GEM_desk_w>>4;
563
564
565
566
567
568
569
570
571
572
573
574
575
576
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);
}
577
578
579
580
581
582
583
GEM_locked=SDL_TRUE;
}
}
static void GEM_UnlockScreen(_THIS)
{
if (GEM_locked) {
584
585
586
587
588
589
590
591
/* 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;
592
mfdb_src.fd_wdwidth=GEM_desk_w>>4;
593
594
595
596
597
598
599
600
601
602
603
604
605
606
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);
}
607
608
609
610
611
612
613
614
615
616
/* 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;
}
}
617
618
619
620
621
SDL_Surface *GEM_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
int maxwidth, maxheight;
Uint32 modeflags, screensize;
622
SDL_bool use_shadow1, use_shadow2;
623
624
625
626
627
628
629
630
631
632
633
/*--- Verify if asked mode can be used ---*/
if (flags & SDL_FULLSCREEN) {
maxwidth=VDI_w;
maxheight=VDI_h;
} else {
/* Windowed mode */
maxwidth=GEM_desk_w;
maxheight=GEM_desk_h;
}
634
/* width must be multiple of 16, for vro_cpyfm() and c2p_convert() */
635
if ((width & 15) != 0) {
636
637
638
width = (width | 15) +1;
}
639
640
641
642
643
644
645
646
647
648
649
if ((maxwidth < width) || (maxheight < height) || (VDI_bpp != bpp)) {
SDL_SetError("Couldn't find requested mode in list");
return(NULL);
}
/*--- 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);
}
650
651
screensize = width * height * VDI_pixelsize;
652
653
654
655
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: setvideomode(): %dx%dx%d = %d\n", width, height, bpp, screensize);
#endif
656
/*--- Allocate shadow buffers if needed, and conversion operations ---*/
657
658
GEM_FreeBuffers(this);
659
660
661
662
663
664
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;
665
666
}
} else {
667
668
669
670
671
672
673
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;
}
674
675
}
676
677
678
if (use_shadow1) {
GEM_buffer1 = Atari_SysMalloc(screensize, MX_PREFTTRAM);
if (GEM_buffer1==NULL) {
679
SDL_SetError("Can not allocate %d KB for frame buffer", screensize>>10);
680
681
return NULL;
}
682
SDL_memset(GEM_buffer1, 0, screensize);
683
684
685
686
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: setvideomode(): allocated buffer 1\n");
#endif
}
687
688
689
690
if (use_shadow2) {
GEM_buffer2 = Atari_SysMalloc(screensize, MX_PREFTTRAM);
if (GEM_buffer2==NULL) {
691
SDL_SetError("Can not allocate %d KB for shadow buffer", screensize>>10);
692
693
return NULL;
}
694
SDL_memset(GEM_buffer2, 0, screensize);
695
696
697
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: setvideomode(): allocated buffer 2\n");
#endif
698
699
700
}
/*--- Initialize screen ---*/
701
modeflags = SDL_PREALLOC;
702
703
704
705
if (VDI_bpp == 8) {
modeflags |= SDL_HWPALETTE;
}
706
if (flags & SDL_FULLSCREEN) {
707
GEM_LockScreen(this);
708
709
GEM_ClearScreen(this);
710
711
modeflags |= SDL_FULLSCREEN;
712
if (VDI_screen && (VDI_format==VDI_FORMAT_PACK) && !use_shadow1) {
713
714
715
716
modeflags |= SDL_HWSURFACE;
} else {
modeflags |= SDL_SWSURFACE;
}
717
718
GEM_fullscreen = SDL_TRUE;
719
} else {
720
int old_win_type;
721
722
short x2,y2,w2,h2;
723
GEM_UnlockScreen(this);
724
725
/* Set window gadgets */
726
old_win_type = GEM_win_type;
727
728
729
730
731
732
733
734
735
736
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;
}
737
modeflags |= SDL_SWSURFACE;
738
739
/* Recreate window ? only for different widget or non-created window */
740
if ((old_win_type != GEM_win_type) || (GEM_handle < 0)) {
741
742
743
744
745
746
/* 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;
}
747
748
749
750
/* Center window */
x2 = GEM_desk_x+((GEM_desk_w-w2)>>1);
y2 = GEM_desk_y+((GEM_desk_h-h2)>>1);
751
752
753
754
755
756
757
758
759
760
761
762
763
764
/* 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;
}
765
766
#ifdef DEBUG_VIDEO_GEM
767
printf("sdl:video:gem: handle=%d\n", GEM_handle);
768
769
#endif
770
771
772
/* Setup window name */
wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);
GEM_refresh_name = SDL_FALSE;
773
774
775
/* Open the window */
wind_open(GEM_handle,x2,y2,w2,h2);
776
777
778
779
780
781
782
783
784
785
786
787
788
} else {
/* Resize window if needed, to fit asked video mode */
if (modeflags & SDL_RESIZABLE) {
wind_get (GEM_handle, WF_WORKXYWH, &x2,&y2,&w2,&h2);
if ((w2&15)!=0) {
w2=(w2|15)+1;
}
if ((w2!=width) || (h2!=height)) {
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);
}
}
}
789
}
790
791
GEM_fullscreen = SDL_FALSE;
792
793
794
795
796
}
/* Set up the new mode framebuffer */
current->w = width;
current->h = height;
797
798
if (use_shadow1) {
current->pixels = GEM_buffer1;
799
current->pitch = width * VDI_pixelsize;
800
801
802
803
804
} else {
current->pixels = VDI_screen;
current->pitch = VDI_pitch;
}
805
806
#ifdef HAVE_OPENGL
if (flags & SDL_OPENGL) {
807
if (!SDL_AtariGL_Init(this, current)) {
808
GEM_FreeBuffers(this);
809
810
SDL_SetError("Can not create OpenGL context");
return NULL;
811
812
813
814
815
816
817
818
}
modeflags |= SDL_OPENGL;
}
#endif
current->flags = modeflags;
819
820
821
822
#ifdef DEBUG_VIDEO_GEM
printf("sdl:video:gem: surface: %dx%d\n", current->w, current->h);
#endif
823
this->UpdateRects = GEM_UpdateRects;
824
GEM_lock_redraw = SDL_FALSE; /* Enable redraw */
825
826
827
828
829
830
831
832
833
/* We're done */
return(current);
}
static int GEM_AllocHWSurface(_THIS, SDL_Surface *surface)
{
return -1;
}
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
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;
853
int i, surf_width;
854
855
surface = this->screen;
856
857
/* Need to be a multiple of 16 pixels */
surf_width=surface->w;
858
if ((surf_width & 15) != 0) {
859
860
surf_width = (surf_width | 15) + 1;
}
861
862
863
864
865
866
if (GEM_bufops & (B2S_C2P_1TO2|B2S_C2P_1TOS)) {
void *destscr;
int destpitch;
if (GEM_bufops & B2S_C2P_1TOS) {
867
destscr = VDI_screen;
868
869
870
871
872
destpitch = VDI_pitch;
} else {
destscr = GEM_buffer2;
destpitch = surface->pitch;
}
873
874
875
876
for (i=0;i<numrects;i++) {
void *source,*destination;
int x1,x2;
877
878
879
880
881
x1 = rects[i].x & ~15;
x2 = rects[i].x+rects[i].w;
if (x2 & 15) {
x2 = (x2 | 15) +1;
882
883
}
884
885
886
source = surface->pixels;
source += surface->pitch * rects[i].y;
source += x1;
887
888
889
890
891
892
893
894
895
896
897
destination = destscr;
destination += destpitch * rects[i].y;
destination += x1;
SDL_Atari_C2pConvert(
source, destination,
x2-x1, rects[i].h,
SDL_FALSE,
surface->pitch, destpitch
);
898
899
}
}
900
901
902
903
if (GEM_bufops & (B2S_VROCPYFM_1TOS|B2S_VROCPYFM_2TOS)) {
MFDB mfdb_src;
short blitcoords[8];
904
905
mfdb_src.fd_addr=surface->pixels;
906
mfdb_src.fd_w=surf_width;
907
mfdb_src.fd_h=surface->h;
908
mfdb_src.fd_wdwidth= (surface->pitch/VDI_pixelsize) >> 4;
909
910
911
912
913
914
915
916
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;
}
917
918
for ( i=0; i<numrects; ++i ) {
919
920
921
922
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;
923
924
925
vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &mfdb_src, &VDI_dst_mfdb);
}
926
}
927
928
929
930
}
static void GEM_UpdateRectsWindowed(_THIS, int numrects, SDL_Rect *rects)
{
931
short pxy[4], wind_pxy[4];
932
933
int i;
934
935
936
if (wind_get(GEM_handle, WF_WORKXYWH, &wind_pxy[0], &wind_pxy[1], &wind_pxy[2], &wind_pxy[3])==0) {
return;
}
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
for ( i=0; i<numrects; ++i ) {
pxy[0] = wind_pxy[0] + rects[i].x;
pxy[1] = wind_pxy[1] + rects[i].y;
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;
952
953
954
955
if (GEM_lock_redraw) {
return;
}
956
957
958
959
960
961
962
963
964
965
966
surface = this->screen;
if (surface->flags & SDL_FULLSCREEN) {
GEM_UpdateRectsFullscreen(this, numrects, rects);
} else {
GEM_UpdateRectsWindowed(this, numrects, rects);
}
}
static int GEM_FlipHWSurfaceFullscreen(_THIS, SDL_Surface *surface)
{
967
968
969
970
int surf_width;
/* Need to be a multiple of 16 pixels */
surf_width=surface->w;
971
if ((surf_width & 15) != 0) {
972
973
974
surf_width = (surf_width | 15) + 1;
}
975
976
977
if (GEM_bufops & (B2S_C2P_1TO2|B2S_C2P_1TOS)) {
void *destscr;
int destpitch;
978
979
if (GEM_bufops & B2S_C2P_1TOS) {
980
destscr = VDI_screen;
981
982
983
984
985
destpitch = VDI_pitch;
} else {
destscr = GEM_buffer2;
destpitch = surface->pitch;
}
986
987
988
SDL_Atari_C2pConvert(
surface->pixels, destscr,
989
surf_width, surface->h,
990
991
992
993
SDL_FALSE,
surface->pitch, destpitch
);
}
994
995
996
997
if (GEM_bufops & (B2S_VROCPYFM_1TOS|B2S_VROCPYFM_2TOS)) {
MFDB mfdb_src;
short blitcoords[8];
998
999
mfdb_src.fd_w=surf_width;
1000
mfdb_src.fd_h=surface->h;