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SDL-1.2.14
[sdl_omap.git] / src / video / gem / SDL_gemvideo.c
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e14743d1 1/*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2009 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 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21*/
22#include "SDL_config.h"
23
24/*
25 GEM video driver
26
27 Patrice Mandin
28 and work from
29 Olivier Landemarre, Johan Klockars, Xavier Joubert, Claude Attard
30*/
31
32/* Mint includes */
33#include <gem.h>
34#include <gemx.h>
35#include <mint/osbind.h>
36#include <mint/cookie.h>
37
38#include "SDL_endian.h"
39#include "SDL_video.h"
40#include "SDL_mouse.h"
41#include "../SDL_sysvideo.h"
42#include "../SDL_pixels_c.h"
43#include "../../events/SDL_events_c.h"
44#include "../SDL_cursor_c.h"
45
46#include "../ataricommon/SDL_ataric2p_s.h"
47#include "../ataricommon/SDL_atarieddi_s.h"
48#include "../ataricommon/SDL_atarimxalloc_c.h"
49#include "../ataricommon/SDL_atarigl_c.h"
50
51#include "SDL_gemvideo.h"
52#include "SDL_gemevents_c.h"
53#include "SDL_gemmouse_c.h"
54#include "SDL_gemwm_c.h"
55#include "../ataricommon/SDL_xbiosevents_c.h"
56#include "../ataricommon/SDL_ataridevmouse_c.h"
57
58/* Defines */
59
60/*#define DEBUG_VIDEO_GEM 1*/
61
62#define GEM_VID_DRIVER_NAME "gem"
63
64#undef MIN
65#define MIN(a,b) (((a)<(b)) ? (a) : (b))
66#undef MAX
67#define MAX(a,b) (((a)>(b)) ? (a) : (b))
68
69/* Variables */
70
71static unsigned char vdi_index[256] = {
72 0, 2, 3, 6, 4, 7, 5, 8,
73 9, 10, 11, 14, 12, 15, 13, 255
74};
75
76static const unsigned char empty_name[]="";
77
78/* Initialization/Query functions */
79static int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat);
80static SDL_Rect **GEM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
81static SDL_Surface *GEM_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
82static int GEM_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
83static void GEM_VideoQuit(_THIS);
84
85/* Hardware surface functions */
86static int GEM_AllocHWSurface(_THIS, SDL_Surface *surface);
87static int GEM_LockHWSurface(_THIS, SDL_Surface *surface);
88static int GEM_FlipHWSurface(_THIS, SDL_Surface *surface);
89static void GEM_UnlockHWSurface(_THIS, SDL_Surface *surface);
90static void GEM_FreeHWSurface(_THIS, SDL_Surface *surface);
91static void GEM_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
92#if 0
93static int GEM_ToggleFullScreen(_THIS, int on);
94#endif
95
96/* Internal functions */
97static void GEM_FreeBuffers(_THIS);
98static void GEM_ClearScreen(_THIS);
99static void GEM_ClearRect(_THIS, short *rect);
100static void GEM_SetNewPalette(_THIS, Uint16 newpal[256][3]);
101static void GEM_LockScreen(_THIS);
102static void GEM_UnlockScreen(_THIS);
103static void refresh_window(_THIS, int winhandle, short *rect);
104
105#if SDL_VIDEO_OPENGL
106/* OpenGL functions */
107static void GEM_GL_SwapBuffers(_THIS);
108#endif
109
110/* GEM driver bootstrap functions */
111
112static int GEM_Available(void)
113{
114 /* Test if AES available */
115 if (appl_init() == -1)
116 return 0;
117
118 appl_exit();
119 return 1;
120}
121
122static void GEM_DeleteDevice(SDL_VideoDevice *device)
123{
124 SDL_free(device->hidden);
125 SDL_free(device);
126}
127
128static SDL_VideoDevice *GEM_CreateDevice(int devindex)
129{
130 SDL_VideoDevice *device;
131 int vectors_mask;
132 unsigned long dummy;
133
134 /* Initialize all variables that we clean on shutdown */
135 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
136 if ( device ) {
137 SDL_memset(device, 0, (sizeof *device));
138 device->hidden = (struct SDL_PrivateVideoData *)
139 SDL_malloc((sizeof *device->hidden));
140 device->gl_data = (struct SDL_PrivateGLData *)
141 SDL_malloc((sizeof *device->gl_data));
142 }
143 if ( (device == NULL) || (device->hidden == NULL) ) {
144 SDL_OutOfMemory();
145 if ( device ) {
146 SDL_free(device);
147 }
148 return(0);
149 }
150 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
151 SDL_memset(device->gl_data, 0, sizeof(*device->gl_data));
152
153 /* Set the function pointers */
154 device->VideoInit = GEM_VideoInit;
155 device->ListModes = GEM_ListModes;
156 device->SetVideoMode = GEM_SetVideoMode;
157 device->SetColors = GEM_SetColors;
158 device->UpdateRects = NULL /*GEM_UpdateRects*/;
159 device->VideoQuit = GEM_VideoQuit;
160 device->AllocHWSurface = GEM_AllocHWSurface;
161 device->LockHWSurface = GEM_LockHWSurface;
162 device->UnlockHWSurface = GEM_UnlockHWSurface;
163 device->FlipHWSurface = GEM_FlipHWSurface;
164 device->FreeHWSurface = GEM_FreeHWSurface;
165 device->ToggleFullScreen = NULL /*GEM_ToggleFullScreen*/;
166
167 /* Window manager */
168 device->SetCaption = GEM_SetCaption;
169 device->SetIcon = GEM_SetIcon;
170 device->IconifyWindow = GEM_IconifyWindow;
171 device->GrabInput = GEM_GrabInput;
172
173 /* Events */
174 device->InitOSKeymap = GEM_InitOSKeymap;
175 device->PumpEvents = GEM_PumpEvents;
176
177 /* Mouse */
178 device->FreeWMCursor = GEM_FreeWMCursor;
179 device->CreateWMCursor = GEM_CreateWMCursor;
180 device->ShowWMCursor = GEM_ShowWMCursor;
181 device->WarpWMCursor = NULL /*GEM_WarpWMCursor*/;
182 device->CheckMouseMode = GEM_CheckMouseMode;
183
184#if SDL_VIDEO_OPENGL
185 /* OpenGL functions */
186 device->GL_LoadLibrary = SDL_AtariGL_LoadLibrary;
187 device->GL_GetProcAddress = SDL_AtariGL_GetProcAddress;
188 device->GL_GetAttribute = SDL_AtariGL_GetAttribute;
189 device->GL_MakeCurrent = SDL_AtariGL_MakeCurrent;
190 device->GL_SwapBuffers = GEM_GL_SwapBuffers;
191#endif
192
193 device->hidden->use_dev_mouse =
194 (SDL_AtariDevMouse_Open()!=0) ? SDL_TRUE : SDL_FALSE;
195
196 vectors_mask = ATARI_XBIOS_JOYSTICKEVENTS; /* XBIOS joystick events */
197 if (!(device->hidden->use_dev_mouse)) {
198 vectors_mask |= ATARI_XBIOS_MOUSEEVENTS; /* XBIOS mouse events */
199 }
200/* if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
201 vectors_mask = 0;
202 }*/
203
204 SDL_AtariXbios_InstallVectors(vectors_mask);
205
206 device->free = GEM_DeleteDevice;
207
208 return device;
209}
210
211VideoBootStrap GEM_bootstrap = {
212 GEM_VID_DRIVER_NAME, "Atari GEM video driver",
213 GEM_Available, GEM_CreateDevice
214};
215
216static void VDI_ReadExtInfo(_THIS, short *work_out)
217{
218 unsigned long EdDI_version;
219 unsigned long cookie_EdDI;
220 Uint32 num_colours;
221 Uint16 clut_type, num_bits;
222
223 /* Read EdDI informations */
224 if (Getcookie(C_EdDI, &cookie_EdDI) == C_NOTFOUND) {
225 return;
226 }
227
228 EdDI_version = Atari_get_EdDI_version( (void *)cookie_EdDI);
229
230 vq_scrninfo(VDI_handle, work_out);
231
232 VDI_format = work_out[0];
233 clut_type = work_out[1];
234 num_bits = work_out[2];
235 num_colours = *((Uint32 *) &work_out[3]);
236
237 /* With EdDI>=1.1, we can have screen pitch, address and format
238 * so we can directly write to screen without using vro_cpyfm
239 */
240 if (EdDI_version >= EDDI_11) {
241 VDI_pitch = work_out[5];
242 VDI_screen = (void *) *((unsigned long *) &work_out[6]);
243 }
244
245 switch(clut_type) {
246 case VDI_CLUT_HARDWARE:
247 {
248 int i;
249 Uint16 *tmp_p;
250
251 tmp_p = (Uint16 *)&work_out[16];
252
253 for (i=0;i<256;i++) {
254 vdi_index[*tmp_p++] = i;
255 }
256 }
257 break;
258 case VDI_CLUT_SOFTWARE:
259 {
260 int component; /* red, green, blue, alpha, overlay */
261 int num_bit;
262 unsigned short *tmp_p;
263
264 /* We can build masks with info here */
265 tmp_p = (unsigned short *) &work_out[16];
266 for (component=0;component<5;component++) {
267 for (num_bit=0;num_bit<16;num_bit++) {
268 unsigned short valeur;
269
270 valeur = *tmp_p++;
271
272 if (valeur == 0xffff) {
273 continue;
274 }
275
276 switch(component) {
277 case 0:
278 VDI_redmask |= 1<< valeur;
279 break;
280 case 1:
281 VDI_greenmask |= 1<< valeur;
282 break;
283 case 2:
284 VDI_bluemask |= 1<< valeur;
285 break;
286 case 3:
287 VDI_alphamask |= 1<< valeur;
288 break;
289 }
290 }
291 }
292 }
293
294 /* Remove lower green bits for Intel endian screen */
295 if ((VDI_greenmask == ((7<<13)|3)) || (VDI_greenmask == ((7<<13)|7))) {
296 VDI_greenmask &= ~(7<<13);
297 }
298 break;
299 case VDI_CLUT_NONE:
300 break;
301 }
302}
303
304int GEM_VideoInit(_THIS, SDL_PixelFormat *vformat)
305{
306 int i, menubar_size;
307 short work_in[12], work_out[272], dummy;
308
309 /* Open AES (Application Environment Services) */
310 if (appl_init() == -1) {
311 fprintf(stderr,"Can not open AES\n");
312 return 1;
313 }
314
315 /* Read version and features */
316 GEM_version = aes_global[0];
317 if (GEM_version >= 0x0410) {
318 short ap_gout[4], errorcode;
319
320 GEM_wfeatures=0;
321 errorcode=appl_getinfo(AES_WINDOW, &ap_gout[0], &ap_gout[1], &ap_gout[2], &ap_gout[3]);
322
323 if (errorcode==0) {
324 GEM_wfeatures=ap_gout[0];
325 }
326 }
327
328 /* Ask VDI physical workstation handle opened by AES */
329 VDI_handle = graf_handle(&dummy, &dummy, &dummy, &dummy);
330 if (VDI_handle<1) {
331 fprintf(stderr,"Wrong VDI handle %d returned by AES\n",VDI_handle);
332 return 1;
333 }
334
335 /* Open virtual VDI workstation */
336 work_in[0]=Getrez()+2;
337 for(i = 1; i < 10; i++)
338 work_in[i] = 1;
339 work_in[10] = 2;
340
341 v_opnvwk(work_in, &VDI_handle, work_out);
342 if (VDI_handle == 0) {
343 fprintf(stderr,"Can not open VDI virtual workstation\n");
344 return 1;
345 }
346
347 /* Read fullscreen size */
348 VDI_w = work_out[0] + 1;
349 VDI_h = work_out[1] + 1;
350
351 /* Read desktop size and position */
352 if (!wind_get(DESKTOP_HANDLE, WF_WORKXYWH, &GEM_desk_x, &GEM_desk_y, &GEM_desk_w, &GEM_desk_h)) {
353 fprintf(stderr,"Can not read desktop properties\n");
354 return 1;
355 }
356
357 /* Read bit depth */
358 vq_extnd(VDI_handle, 1, work_out);
359 VDI_bpp = work_out[4];
360 VDI_oldnumcolors=0;
361
362 switch(VDI_bpp) {
363 case 8:
364 VDI_pixelsize=1;
365 break;
366 case 15:
367 case 16:
368 VDI_pixelsize=2;
369 break;
370 case 24:
371 VDI_pixelsize=3;
372 break;
373 case 32:
374 VDI_pixelsize=4;
375 break;
376 default:
377 fprintf(stderr,"%d bits colour depth not supported\n",VDI_bpp);
378 return 1;
379 }
380
381 /* Setup hardware -> VDI palette mapping */
382 for(i = 16; i < 255; i++) {
383 vdi_index[i] = i;
384 }
385 vdi_index[255] = 1;
386
387 /* Save current palette */
388 if (VDI_bpp>8) {
389 VDI_oldnumcolors=1<<8;
390 } else {
391 VDI_oldnumcolors=1<<VDI_bpp;
392 }
393
394 for(i = 0; i < VDI_oldnumcolors; i++) {
395 short rgb[3];
396
397 vq_color(VDI_handle, i, 0, rgb);
398
399 VDI_oldpalette[i][0] = rgb[0];
400 VDI_oldpalette[i][1] = rgb[1];
401 VDI_oldpalette[i][2] = rgb[2];
402 }
403 VDI_setpalette = GEM_SetNewPalette;
404 SDL_memcpy(VDI_curpalette,VDI_oldpalette,sizeof(VDI_curpalette));
405
406 /* Setup screen info */
407 GEM_title_name = empty_name;
408 GEM_icon_name = empty_name;
409
410 GEM_handle = -1;
411 GEM_locked = SDL_FALSE;
412 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 VDI_pitch = VDI_w * VDI_pixelsize;
418 VDI_format = ( (VDI_bpp <= 8) ? VDI_FORMAT_INTER : VDI_FORMAT_PACK);
419 VDI_redmask = VDI_greenmask = VDI_bluemask = VDI_alphamask = 0;
420 VDI_ReadExtInfo(this, work_out);
421
422#ifdef DEBUG_VIDEO_GEM
423 printf("sdl:video:gem: screen: address=0x%08x, pitch=%d\n", VDI_screen, VDI_pitch);
424 printf("sdl:video:gem: format=%d\n", VDI_format);
425 printf("sdl:video:gem: masks: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
426 VDI_alphamask, VDI_redmask, VDI_greenmask, VDI_bluemask
427 );
428#endif
429
430 /* Setup destination mfdb */
431 VDI_dst_mfdb.fd_addr = NULL;
432
433 /* Determine the current screen size */
434 this->info.current_w = VDI_w;
435 this->info.current_h = VDI_h;
436
437 /* Determine the screen depth */
438 /* we change this during the SDL_SetVideoMode implementation... */
439 vformat->BitsPerPixel = VDI_bpp;
440
441 /* Set mouse cursor to arrow */
442 graf_mouse(ARROW, NULL);
443 GEM_cursor = NULL;
444
445 /* Init chunky to planar routine */
446 SDL_Atari_C2pConvert = SDL_Atari_C2pConvert8;
447
448 /* Setup VDI fill functions */
449 vsf_color(VDI_handle,0);
450 vsf_interior(VDI_handle,1);
451 vsf_perimeter(VDI_handle,0);
452
453 /* Menu bar save buffer */
454 menubar_size = GEM_desk_w * GEM_desk_y * VDI_pixelsize;
455 GEM_menubar=Atari_SysMalloc(menubar_size,MX_PREFTTRAM);
456
457 /* Fill video modes list */
458 SDL_modelist[0] = SDL_malloc(sizeof(SDL_Rect));
459 SDL_modelist[0]->x = 0;
460 SDL_modelist[0]->y = 0;
461 SDL_modelist[0]->w = VDI_w;
462 SDL_modelist[0]->h = VDI_h;
463
464 SDL_modelist[1] = NULL;
465
466#if SDL_VIDEO_OPENGL
467 SDL_AtariGL_InitPointers(this);
468#endif
469
470 this->info.wm_available = 1;
471
472 /* We're done! */
473 return(0);
474}
475
476SDL_Rect **GEM_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
477{
478 if (format->BitsPerPixel != VDI_bpp) {
479 return ((SDL_Rect **)NULL);
480 }
481
482 if (flags & SDL_FULLSCREEN) {
483 return (SDL_modelist);
484 }
485
486 return((SDL_Rect **)-1);
487}
488
489static void GEM_FreeBuffers(_THIS)
490{
491 /* Release buffer */
492 if ( GEM_buffer2 ) {
493 Mfree( GEM_buffer2 );
494 GEM_buffer2=NULL;
495 }
496
497 if ( GEM_buffer1 ) {
498 Mfree( GEM_buffer1 );
499 GEM_buffer1=NULL;
500 }
501}
502
503static void GEM_ClearRect(_THIS, short *rect)
504{
505 short oldrgb[3], rgb[3]={0,0,0};
506
507 vq_color(VDI_handle, vdi_index[0], 0, oldrgb);
508 vs_color(VDI_handle, vdi_index[0], rgb);
509
510 vsf_color(VDI_handle,0);
511 vsf_interior(VDI_handle,1);
512 vsf_perimeter(VDI_handle,0);
513 v_bar(VDI_handle, rect);
514
515 vs_color(VDI_handle, vdi_index[0], oldrgb);
516}
517
518static void GEM_ClearScreen(_THIS)
519{
520 short pxy[4];
521
522 v_hide_c(VDI_handle);
523
524 pxy[0] = pxy[1] = 0;
525 pxy[2] = VDI_w - 1;
526 pxy[3] = VDI_h - 1;
527 GEM_ClearRect(this, pxy);
528
529 v_show_c(VDI_handle, 1);
530}
531
532static void GEM_SetNewPalette(_THIS, Uint16 newpal[256][3])
533{
534 int i;
535 short rgb[3];
536
537 if (VDI_oldnumcolors==0)
538 return;
539
540 for(i = 0; i < VDI_oldnumcolors; i++) {
541 rgb[0] = newpal[i][0];
542 rgb[1] = newpal[i][1];
543 rgb[2] = newpal[i][2];
544
545 vs_color(VDI_handle, i, rgb);
546 }
547}
548
549static void GEM_LockScreen(_THIS)
550{
551 if (!GEM_locked) {
552 /* Lock AES */
553 wind_update(BEG_UPDATE);
554 wind_update(BEG_MCTRL);
555 /* Reserve memory space, used to be sure of compatibility */
556 form_dial( FMD_START, 0,0,0,0, 0,0,VDI_w,VDI_h);
557
558 /* Save menu bar */
559 if (GEM_menubar) {
560 MFDB mfdb_src;
561 short blitcoords[8];
562
563 mfdb_src.fd_addr=GEM_menubar;
564 mfdb_src.fd_w=GEM_desk_w;
565 mfdb_src.fd_h=GEM_desk_y;
566 mfdb_src.fd_wdwidth=GEM_desk_w>>4;
567 mfdb_src.fd_nplanes=VDI_bpp;
568 mfdb_src.fd_stand=
569 mfdb_src.fd_r1=
570 mfdb_src.fd_r2=
571 mfdb_src.fd_r3= 0;
572
573 blitcoords[0] = blitcoords[4] = 0;
574 blitcoords[1] = blitcoords[5] = 0;
575 blitcoords[2] = blitcoords[6] = GEM_desk_w-1;
576 blitcoords[3] = blitcoords[7] = GEM_desk_y-1;
577
578 vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &VDI_dst_mfdb, &mfdb_src);
579 }
580
581 GEM_locked=SDL_TRUE;
582 }
583}
584
585static void GEM_UnlockScreen(_THIS)
586{
587 if (GEM_locked) {
588 /* Restore menu bar */
589 if (GEM_menubar) {
590 MFDB mfdb_src;
591 short blitcoords[8];
592
593 mfdb_src.fd_addr=GEM_menubar;
594 mfdb_src.fd_w=GEM_desk_w;
595 mfdb_src.fd_h=GEM_desk_y;
596 mfdb_src.fd_wdwidth=GEM_desk_w>>4;
597 mfdb_src.fd_nplanes=VDI_bpp;
598 mfdb_src.fd_stand=
599 mfdb_src.fd_r1=
600 mfdb_src.fd_r2=
601 mfdb_src.fd_r3= 0;
602
603 blitcoords[0] = blitcoords[4] = 0;
604 blitcoords[1] = blitcoords[5] = 0;
605 blitcoords[2] = blitcoords[6] = GEM_desk_w-1;
606 blitcoords[3] = blitcoords[7] = GEM_desk_y-1;
607
608 vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &mfdb_src, &VDI_dst_mfdb);
609 }
610
611 /* Restore screen memory, and send REDRAW to all apps */
612 form_dial( FMD_FINISH, 0,0,0,0, 0,0,VDI_w,VDI_h);
613 /* Unlock AES */
614 wind_update(END_MCTRL);
615 wind_update(END_UPDATE);
616
617 GEM_locked=SDL_FALSE;
618 }
619}
620
621SDL_Surface *GEM_SetVideoMode(_THIS, SDL_Surface *current,
622 int width, int height, int bpp, Uint32 flags)
623{
624 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 width = (width | 15) +1;
630 }
631
632 /*--- Verify if asked mode can be used ---*/
633 if (VDI_bpp != bpp) {
634 SDL_SetError("%d bpp mode not supported", bpp);
635 return(NULL);
636 }
637
638 if (flags & SDL_FULLSCREEN) {
639 if ((VDI_w < width) || (VDI_h < height)) {
640 SDL_SetError("%dx%d mode is too large", width, height);
641 return(NULL);
642 }
643 }
644
645 /*--- Allocate the new pixel format for the screen ---*/
646 if ( ! SDL_ReallocFormat(current, VDI_bpp, VDI_redmask, VDI_greenmask, VDI_bluemask, VDI_alphamask) ) {
647 SDL_SetError("Couldn't allocate new pixel format for requested mode");
648 return(NULL);
649 }
650
651 screensize = width * height * VDI_pixelsize;
652
653#ifdef DEBUG_VIDEO_GEM
654 printf("sdl:video:gem: setvideomode(): %dx%dx%d = %d\n", width, height, bpp, screensize);
655#endif
656
657 /*--- Allocate shadow buffers if needed, and conversion operations ---*/
658 GEM_FreeBuffers(this);
659
660 GEM_bufops=0;
661 use_shadow1=use_shadow2=SDL_FALSE;
662 if (VDI_screen && (flags & SDL_FULLSCREEN)) {
663 if (VDI_format==VDI_FORMAT_INTER) {
664 use_shadow1=SDL_TRUE;
665 GEM_bufops = B2S_C2P_1TOS;
666 }
667 } else {
668 use_shadow1=SDL_TRUE;
669 if (VDI_format==VDI_FORMAT_PACK) {
670 GEM_bufops = B2S_VROCPYFM_1TOS;
671 } else {
672 use_shadow2=SDL_TRUE;
673 GEM_bufops = B2S_C2P_1TO2|B2S_VROCPYFM_2TOS;
674 }
675 }
676
677 if (use_shadow1) {
678 GEM_buffer1 = Atari_SysMalloc(screensize, MX_PREFTTRAM);
679 if (GEM_buffer1==NULL) {
680 SDL_SetError("Can not allocate %d KB for frame buffer", screensize>>10);
681 return NULL;
682 }
683 SDL_memset(GEM_buffer1, 0, screensize);
684#ifdef DEBUG_VIDEO_GEM
685 printf("sdl:video:gem: setvideomode(): allocated buffer 1\n");
686#endif
687 }
688
689 if (use_shadow2) {
690 GEM_buffer2 = Atari_SysMalloc(screensize, MX_PREFTTRAM);
691 if (GEM_buffer2==NULL) {
692 SDL_SetError("Can not allocate %d KB for shadow buffer", screensize>>10);
693 return NULL;
694 }
695 SDL_memset(GEM_buffer2, 0, screensize);
696#ifdef DEBUG_VIDEO_GEM
697 printf("sdl:video:gem: setvideomode(): allocated buffer 2\n");
698#endif
699 }
700
701 /*--- Initialize screen ---*/
702 modeflags = SDL_PREALLOC;
703 if (VDI_bpp == 8) {
704 modeflags |= SDL_HWPALETTE;
705 }
706
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 modeflags |= SDL_HWSURFACE;
715 } else {
716 modeflags |= SDL_SWSURFACE;
717 }
718
719 GEM_fullscreen = SDL_TRUE;
720 } else {
721 int old_win_type;
722 short x2,y2,w2,h2;
723
724 GEM_UnlockScreen(this);
725
726 /* Set window gadgets */
727 old_win_type = GEM_win_type;
728 if (!(flags & SDL_NOFRAME)) {
729 GEM_win_type=NAME|MOVER|CLOSER|SMALLER;
730 if (flags & SDL_RESIZABLE) {
731 GEM_win_type |= FULLER|SIZER;
732 modeflags |= SDL_RESIZABLE;
733 }
734 } else {
735 GEM_win_type=0;
736 modeflags |= SDL_NOFRAME;
737 }
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 /* Calculate window size */
743 if (!wind_calc(WC_BORDER, GEM_win_type, 0,0,width,height, &x2,&y2,&w2,&h2)) {
744 GEM_FreeBuffers(this);
745 SDL_SetError("Can not calculate window attributes");
746 return NULL;
747 }
748
749 /* Center window */
750 x2 = (GEM_desk_w-w2)>>1;
751 y2 = (GEM_desk_h-h2)>>1;
752 if (x2<0) {
753 x2 = 0;
754 }
755 if (y2<0) {
756 y2 = 0;
757 }
758 x2 += GEM_desk_x;
759 y2 += GEM_desk_y;
760
761 /* Destroy existing window */
762 if (GEM_handle >= 0) {
763 wind_close(GEM_handle);
764 wind_delete(GEM_handle);
765 }
766
767 /* Create window */
768 GEM_handle=wind_create(GEM_win_type, x2,y2,w2,h2);
769 if (GEM_handle<0) {
770 GEM_FreeBuffers(this);
771 SDL_SetError("Can not create window");
772 return NULL;
773 }
774
775#ifdef DEBUG_VIDEO_GEM
776 printf("sdl:video:gem: handle=%d\n", GEM_handle);
777#endif
778
779 /* Setup window name */
780 wind_set(GEM_handle,WF_NAME,(short)(((unsigned long)GEM_title_name)>>16),(short)(((unsigned long)GEM_title_name) & 0xffff),0,0);
781 GEM_refresh_name = SDL_FALSE;
782
783 /* Open the window */
784 wind_open(GEM_handle,x2,y2,w2,h2);
785 } else {
786 /* Resize window to fit asked video mode */
787 wind_get (GEM_handle, WF_WORKXYWH, &x2,&y2,&w2,&h2);
788 if (wind_calc(WC_BORDER, GEM_win_type, x2,y2,width,height, &x2,&y2,&w2,&h2)) {
789 wind_set (GEM_handle, WF_CURRXYWH, x2,y2,w2,h2);
790 }
791 }
792
793 GEM_fullscreen = SDL_FALSE;
794 }
795
796 /* Set up the new mode framebuffer */
797 current->w = width;
798 current->h = height;
799 if (use_shadow1) {
800 current->pixels = GEM_buffer1;
801 current->pitch = width * VDI_pixelsize;
802 } else {
803 current->pixels = VDI_screen;
804 current->pitch = VDI_pitch;
805 }
806
807#if SDL_VIDEO_OPENGL
808 if (flags & SDL_OPENGL) {
809 if (!SDL_AtariGL_Init(this, current)) {
810 GEM_FreeBuffers(this);
811 SDL_SetError("Can not create OpenGL context");
812 return NULL;
813 }
814
815 modeflags |= SDL_OPENGL;
816 }
817#endif
818
819 current->flags = modeflags;
820
821#ifdef DEBUG_VIDEO_GEM
822 printf("sdl:video:gem: surface: %dx%d\n", current->w, current->h);
823#endif
824
825 this->UpdateRects = GEM_UpdateRects;
826 GEM_lock_redraw = SDL_FALSE; /* Enable redraw */
827
828 /* We're done */
829 return(current);
830}
831
832static int GEM_AllocHWSurface(_THIS, SDL_Surface *surface)
833{
834 return -1;
835}
836
837static void GEM_FreeHWSurface(_THIS, SDL_Surface *surface)
838{
839 return;
840}
841
842static int GEM_LockHWSurface(_THIS, SDL_Surface *surface)
843{
844 return(0);
845}
846
847static void GEM_UnlockHWSurface(_THIS, SDL_Surface *surface)
848{
849 return;
850}
851
852static void GEM_UpdateRectsFullscreen(_THIS, int numrects, SDL_Rect *rects)
853{
854 SDL_Surface *surface;
855 int i, surf_width;
856
857 surface = this->screen;
858 /* Need to be a multiple of 16 pixels */
859 surf_width=surface->w;
860 if ((surf_width & 15) != 0) {
861 surf_width = (surf_width | 15) + 1;
862 }
863
864 if (GEM_bufops & (B2S_C2P_1TO2|B2S_C2P_1TOS)) {
865 void *destscr;
866 int destpitch;
867
868 if (GEM_bufops & B2S_C2P_1TOS) {
869 destscr = VDI_screen;
870 destpitch = VDI_pitch;
871 } else {
872 destscr = GEM_buffer2;
873 destpitch = surface->pitch;
874 }
875
876 for (i=0;i<numrects;i++) {
877 void *source,*destination;
878 int x1,x2;
879
880 x1 = rects[i].x & ~15;
881 x2 = rects[i].x+rects[i].w;
882 if (x2 & 15) {
883 x2 = (x2 | 15) +1;
884 }
885
886 source = surface->pixels;
887 source += surface->pitch * rects[i].y;
888 source += x1;
889
890 destination = destscr;
891 destination += destpitch * rects[i].y;
892 destination += x1;
893
894 SDL_Atari_C2pConvert(
895 source, destination,
896 x2-x1, rects[i].h,
897 SDL_FALSE,
898 surface->pitch, destpitch
899 );
900 }
901 }
902
903 if (GEM_bufops & (B2S_VROCPYFM_1TOS|B2S_VROCPYFM_2TOS)) {
904 MFDB mfdb_src;
905 short blitcoords[8];
906
907 mfdb_src.fd_addr=surface->pixels;
908 mfdb_src.fd_w=surf_width;
909 mfdb_src.fd_h=surface->h;
910 mfdb_src.fd_wdwidth= (surface->pitch/VDI_pixelsize) >> 4;
911 mfdb_src.fd_nplanes=surface->format->BitsPerPixel;
912 mfdb_src.fd_stand=
913 mfdb_src.fd_r1=
914 mfdb_src.fd_r2=
915 mfdb_src.fd_r3= 0;
916 if (GEM_bufops & B2S_VROCPYFM_2TOS) {
917 mfdb_src.fd_addr=GEM_buffer2;
918 }
919
920 for ( i=0; i<numrects; ++i ) {
921 blitcoords[0] = blitcoords[4] = rects[i].x;
922 blitcoords[1] = blitcoords[5] = rects[i].y;
923 blitcoords[2] = blitcoords[6] = rects[i].x + rects[i].w - 1;
924 blitcoords[3] = blitcoords[7] = rects[i].y + rects[i].h - 1;
925
926 vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &mfdb_src, &VDI_dst_mfdb);
927 }
928 }
929}
930
931static void GEM_UpdateRectsWindowed(_THIS, int numrects, SDL_Rect *rects)
932{
933 short pxy[4], wind_pxy[4];
934 int i;
935
936 if (wind_get(GEM_handle, WF_WORKXYWH, &wind_pxy[0], &wind_pxy[1], &wind_pxy[2], &wind_pxy[3])==0) {
937 return;
938 }
939
940 for ( i=0; i<numrects; ++i ) {
941 pxy[0] = wind_pxy[0] + rects[i].x;
942 pxy[1] = wind_pxy[1] + rects[i].y;
943 pxy[2] = rects[i].w;
944 pxy[3] = rects[i].h;
945
946 GEM_wind_redraw(this, GEM_handle, pxy);
947 }
948}
949
950static void GEM_UpdateRects(_THIS, int numrects, SDL_Rect *rects)
951{
952 SDL_Surface *surface;
953
954 if (GEM_lock_redraw) {
955 return;
956 }
957
958 surface = this->screen;
959
960 if (surface->flags & SDL_FULLSCREEN) {
961 GEM_UpdateRectsFullscreen(this, numrects, rects);
962 } else {
963 GEM_UpdateRectsWindowed(this, numrects, rects);
964 }
965}
966
967static int GEM_FlipHWSurfaceFullscreen(_THIS, SDL_Surface *surface)
968{
969 int surf_width;
970
971 /* Need to be a multiple of 16 pixels */
972 surf_width=surface->w;
973 if ((surf_width & 15) != 0) {
974 surf_width = (surf_width | 15) + 1;
975 }
976
977 if (GEM_bufops & (B2S_C2P_1TO2|B2S_C2P_1TOS)) {
978 void *destscr;
979 int destpitch;
980
981 if (GEM_bufops & B2S_C2P_1TOS) {
982 destscr = VDI_screen;
983 destpitch = VDI_pitch;
984 } else {
985 destscr = GEM_buffer2;
986 destpitch = surface->pitch;
987 }
988
989 SDL_Atari_C2pConvert(
990 surface->pixels, destscr,
991 surf_width, surface->h,
992 SDL_FALSE,
993 surface->pitch, destpitch
994 );
995 }
996
997 if (GEM_bufops & (B2S_VROCPYFM_1TOS|B2S_VROCPYFM_2TOS)) {
998 MFDB mfdb_src;
999 short blitcoords[8];
1000
1001 mfdb_src.fd_w=surf_width;
1002 mfdb_src.fd_h=surface->h;
1003 mfdb_src.fd_wdwidth=mfdb_src.fd_w >> 4;
1004 mfdb_src.fd_nplanes=surface->format->BitsPerPixel;
1005 mfdb_src.fd_stand=
1006 mfdb_src.fd_r1=
1007 mfdb_src.fd_r2=
1008 mfdb_src.fd_r3= 0;
1009 if (GEM_bufops & B2S_VROCPYFM_1TOS) {
1010 mfdb_src.fd_addr=surface->pixels;
1011 } else {
1012 mfdb_src.fd_addr=GEM_buffer2;
1013 }
1014
1015 blitcoords[0] = blitcoords[4] = 0;
1016 blitcoords[1] = blitcoords[5] = 0;
1017 blitcoords[2] = blitcoords[6] = surface->w - 1;
1018 blitcoords[3] = blitcoords[7] = surface->h - 1;
1019
1020 vro_cpyfm(VDI_handle, S_ONLY, blitcoords, &mfdb_src, &VDI_dst_mfdb);
1021 }
1022
1023 return(0);
1024}
1025
1026static int GEM_FlipHWSurfaceWindowed(_THIS, SDL_Surface *surface)
1027{
1028 short pxy[8];
1029
1030 /* Update the whole window */
1031 wind_get(GEM_handle, WF_WORKXYWH, &pxy[0], &pxy[1], &pxy[2], &pxy[3]);
1032
1033 GEM_wind_redraw(this, GEM_handle, pxy);
1034
1035 return(0);
1036}
1037
1038static int GEM_FlipHWSurface(_THIS, SDL_Surface *surface)
1039{
1040 if (GEM_lock_redraw) {
1041 return(0);
1042 }
1043
1044 if (surface->flags & SDL_FULLSCREEN) {
1045 return GEM_FlipHWSurfaceFullscreen(this, surface);
1046 } else {
1047 return GEM_FlipHWSurfaceWindowed(this, surface);
1048 }
1049}
1050
1051static int GEM_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors)
1052{
1053 int i;
1054 SDL_Surface *surface;
1055
1056#ifdef DEBUG_VIDEO_GEM
1057 printf("sdl:video:gem: setcolors()\n");
1058#endif
1059
1060 /* Do not change palette in True Colour */
1061 surface = this->screen;
1062 if (surface->format->BitsPerPixel > 8) {
1063 return 1;
1064 }
1065
1066 for(i = 0; i < ncolors; i++)
1067 {
1068 int r, g, b;
1069 short rgb[3];
1070
1071 r = colors[i].r;
1072 g = colors[i].g;
1073 b = colors[i].b;
1074
1075 rgb[0] = VDI_curpalette[i][0] = (1000 * r) / 255;
1076 rgb[1] = VDI_curpalette[i][1] =(1000 * g) / 255;
1077 rgb[2] = VDI_curpalette[i][2] =(1000 * b) / 255;
1078
1079 vs_color(VDI_handle, vdi_index[firstcolor+i], rgb);
1080 }
1081
1082 return(1);
1083}
1084
1085#if 0
1086static int GEM_ToggleFullScreen(_THIS, int on)
1087{
1088 if (on) {
1089 GEM_LockScreen(this);
1090 } else {
1091 GEM_UnlockScreen(this);
1092 }
1093
1094 return(1);
1095}
1096#endif
1097
1098/* Note: If we are terminated, this could be called in the middle of
1099 another SDL video routine -- notably UpdateRects.
1100*/
1101void GEM_VideoQuit(_THIS)
1102{
1103 SDL_AtariXbios_RestoreVectors();
1104 if (GEM_usedevmouse) {
1105 SDL_AtariDevMouse_Close();
1106 }
1107
1108 GEM_FreeBuffers(this);
1109
1110#if SDL_VIDEO_OPENGL
1111 if (gl_active) {
1112 SDL_AtariGL_Quit(this, SDL_TRUE);
1113 }
1114#endif
1115
1116 /* Destroy window */
1117 if (GEM_handle>=0) {
1118 wind_close(GEM_handle);
1119 wind_delete(GEM_handle);
1120 GEM_handle=-1;
1121 }
1122
1123 GEM_UnlockScreen(this);
1124 if (GEM_menubar) {
1125 Mfree(GEM_menubar);
1126 GEM_menubar=NULL;
1127 }
1128
1129 appl_exit();
1130
1131 GEM_SetNewPalette(this, VDI_oldpalette);
1132
1133 /* Close VDI workstation */
1134 if (VDI_handle) {
1135 v_clsvwk(VDI_handle);
1136 }
1137
1138 /* Free mode list */
1139 if (SDL_modelist[0]) {
1140 SDL_free(SDL_modelist[0]);
1141 SDL_modelist[0]=NULL;
1142 }
1143
1144 this->screen->pixels = NULL;
1145}
1146
1147void GEM_wind_redraw(_THIS, int winhandle, short *inside)
1148{
1149 short todo[4];
1150
1151 /* Tell AES we are going to update */
1152 wind_update(BEG_UPDATE);
1153
1154 v_hide_c(VDI_handle);
1155
1156 /* Browse the rectangle list to redraw */
1157 if (wind_get(winhandle, WF_FIRSTXYWH, &todo[0], &todo[1], &todo[2], &todo[3])!=0) {
1158
1159 while (todo[2] && todo[3]) {
1160
1161 if (rc_intersect((GRECT *)inside,(GRECT *)todo)) {
1162 todo[2] += todo[0]-1;
1163 todo[3] += todo[1]-1;
1164 refresh_window(this, winhandle, todo);
1165 }
1166
1167 if (wind_get(winhandle, WF_NEXTXYWH, &todo[0], &todo[1], &todo[2], &todo[3])==0) {
1168 break;
1169 }
1170 }
1171
1172 }
1173
1174 /* Update finished */
1175 wind_update(END_UPDATE);
1176
1177 v_show_c(VDI_handle,1);
1178}
1179
1180static void refresh_window(_THIS, int winhandle, short *rect)
1181{
1182 MFDB mfdb_src;
1183 short pxy[8],wind_pxy[8];
1184 SDL_Surface *surface;
1185 int iconified;
1186
1187 /* Is window iconified ? */
1188 iconified = 0;
1189/* if (GEM_wfeatures & (1<<WF_ICONIFY))*/ {
1190 if (wind_get(winhandle, WF_ICONIFY, &wind_pxy[0], &wind_pxy[1], &wind_pxy[2], &wind_pxy[3])!=0) {
1191 iconified = wind_pxy[0];
1192 }
1193 }
1194
1195 if (wind_get(winhandle, WF_WORKXYWH, &wind_pxy[0], &wind_pxy[1], &wind_pxy[2], &wind_pxy[3])==0) {
1196 return;
1197 }
1198
1199 if (iconified && GEM_icon) {
1200 short icon_rect[4], dst_rect[4];
1201 short iconx,icony;
1202
1203 surface = GEM_icon;
1204
1205 GEM_ClearRect(this, rect);
1206
1207 /* Calculate centered icon(x,y,w,h) relative to window */
1208 iconx = (wind_pxy[2]-surface->w)>>1;
1209 icony = (wind_pxy[3]-surface->h)>>1;
1210
1211 icon_rect[0] = iconx;
1212 icon_rect[1] = icony;
1213 icon_rect[2] = surface->w;
1214 icon_rect[3] = surface->h;
1215
1216 /* Calculate redraw rectangle(x,y,w,h) relative to window */
1217 dst_rect[0] = rect[0]-wind_pxy[0];
1218 dst_rect[1] = rect[1]-wind_pxy[1];
1219 dst_rect[2] = rect[2]-rect[0]+1;
1220 dst_rect[3] = rect[3]-rect[1]+1;
1221
1222 /* Does the icon rectangle must be redrawn ? */
1223 if (!rc_intersect((GRECT *)icon_rect, (GRECT *)dst_rect)) {
1224 return;
1225 }
1226
1227#if DEBUG_VIDEO_GEM
1228 printf("sdl:video:gem: clip(0,0,%d,%d) to (%d,%d,%d,%d)\n",
1229 surface->w-1,surface->h-1, dst_rect[0],dst_rect[1],dst_rect[2],dst_rect[3]);
1230 printf("sdl:video:gem: icon(%d,%d,%d,%d)\n",
1231 icon_rect[0], icon_rect[1], icon_rect[2], icon_rect[3]);
1232 printf("sdl:video:gem: refresh_window(): draw icon\n");
1233#endif
1234
1235 /* Calculate icon(x1,y1,x2,y2) relative to screen */
1236 icon_rect[0] += wind_pxy[0];
1237 icon_rect[1] += wind_pxy[1];
1238 icon_rect[2] += icon_rect[0]-1;
1239 icon_rect[3] += icon_rect[1]-1;
1240
1241 /* Calculate intersection rectangle to redraw */
1242 pxy[4]=pxy[0]=MAX(icon_rect[0],rect[0]);
1243 pxy[5]=pxy[1]=MAX(icon_rect[1],rect[1]);
1244 pxy[6]=pxy[2]=MIN(icon_rect[2],rect[2]);
1245 pxy[7]=pxy[3]=MIN(icon_rect[3],rect[3]);
1246
1247 /* Calculate icon source image pos relative to window */
1248 pxy[0] -= wind_pxy[0]+iconx;
1249 pxy[1] -= wind_pxy[1]+icony;
1250 pxy[2] -= wind_pxy[0]+iconx;
1251 pxy[3] -= wind_pxy[1]+icony;
1252
1253 } else {
1254 surface = this->screen;
1255
1256#if DEBUG_VIDEO_GEM
1257 printf("sdl:video:gem: refresh_window(): draw frame buffer\n");
1258#endif
1259
1260 /* Redraw all window content */
1261 pxy[0] = rect[0]-wind_pxy[0];
1262 pxy[1] = rect[1]-wind_pxy[1];
1263 pxy[2] = rect[2]-wind_pxy[0];
1264 pxy[3] = rect[3]-wind_pxy[1];
1265
1266 pxy[4] = rect[0];
1267 pxy[5] = rect[1];
1268 pxy[6] = rect[2];
1269 pxy[7] = rect[3];
1270 }
1271
1272 if (GEM_bufops & B2S_C2P_1TO2) {
1273 void *src, *dest;
1274 int x1,x2;
1275
1276 x1 = (rect[0]-wind_pxy[0]) & ~15;
1277 x2 = rect[2]-wind_pxy[0];
1278 if (x2 & 15) {
1279 x2 = (x2 | 15) +1;
1280 }
1281
1282 src = surface->pixels;
1283 src += surface->pitch * (rect[1]-wind_pxy[1]);
1284 src += x1;
1285
1286 dest = GEM_buffer2;
1287 dest += surface->pitch * (rect[1]-wind_pxy[1]);
1288 dest += x1;
1289
1290 SDL_Atari_C2pConvert(
1291 src, dest,
1292 x2-x1, rect[3]-rect[1]+1,
1293 SDL_FALSE,
1294 surface->pitch, surface->pitch
1295 );
1296 }
1297
1298 mfdb_src.fd_addr=surface->pixels;
1299 {
1300 int width;
1301
1302 /* Need to be a multiple of 16 pixels */
1303 width=surface->w;
1304 if ((width & 15) != 0) {
1305 width = (width | 15) + 1;
1306 }
1307 mfdb_src.fd_w=width;
1308 }
1309 mfdb_src.fd_h=surface->h;
1310 mfdb_src.fd_nplanes=surface->format->BitsPerPixel;
1311 mfdb_src.fd_wdwidth=mfdb_src.fd_w>>4;
1312 mfdb_src.fd_stand=
1313 mfdb_src.fd_r1=
1314 mfdb_src.fd_r2=
1315 mfdb_src.fd_r3= 0;
1316
1317 if (GEM_bufops & B2S_VROCPYFM_2TOS) {
1318 mfdb_src.fd_addr=GEM_buffer2;
1319 }
1320
1321#if DEBUG_VIDEO_GEM
1322 printf("sdl:video:gem: redraw %dx%d: (%d,%d,%d,%d) to (%d,%d,%d,%d)\n",
1323 surface->w, surface->h,
1324 pxy[0],pxy[1],pxy[2],pxy[3],
1325 pxy[4],pxy[5],pxy[6],pxy[7]
1326 );
1327#endif
1328
1329 vro_cpyfm( VDI_handle, S_ONLY, pxy, &mfdb_src, &VDI_dst_mfdb);
1330}
1331
1332#if SDL_VIDEO_OPENGL
1333
1334static void GEM_GL_SwapBuffers(_THIS)
1335{
1336 SDL_AtariGL_SwapBuffers(this);
1337 GEM_FlipHWSurface(this, this->screen);
1338}
1339
1340#endif
SDL with some OMAP hardware support