Mercurial > sdl-ios-xcode
annotate src/video/macdsp/SDL_dspvideo.c @ 319:189a6a3416c7
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 26 Mar 2002 17:37:31 +0000 |
| parents | f6ffac90895c |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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f6ffac90895c
Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
parents:
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 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 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
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changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* | |
| 24 Written by Darrell Walisser <dwaliss1@purdue.edu> | |
| 25 | |
| 26 Implementation notes ---------------------------------------------------------------------- | |
| 27 | |
| 28 A bit on GWorlds in VRAM from technote 1182: | |
| 29 | |
| 30 There are two important things to note about GWorld's allocated in | |
| 31 VRAM. First, the base address retrieved through GetPixBaseAddr or | |
| 32 read directly from the PixMap structure can become invalid anytime | |
| 33 memory is allocated in VRAM. This can occur either by explicit | |
| 34 allocations, such as calls to NewGWorld, or by implicit ones, such as | |
| 35 those associated with the internal texture allocation of OpenGL. The | |
| 36 stored pixel images themselves will still be valid but may have been | |
| 37 moved in VRAM, thus rendering any stored base addresses invalid. | |
| 38 You should never store an image's base address for longer than is | |
| 39 necessary and especially never across calls to NewGWorld or | |
| 40 texture-creation routines. | |
| 41 | |
| 42 Secondly, an offscreen pixel image allocated in VRAM can be | |
| 43 purged at system task time by the display driver. This means any | |
| 44 time your application yields time such by calling WaitNextEvent or | |
| 45 SystemTask you can lose your VRAM GWorld contents. While this | |
| 46 happens infrequently, usually associated with display resolution or | |
| 47 pixel depth changes you must code for this eventuality. This purge | |
| 48 can occur whether or not the GWorld is locked or not. A return value | |
| 49 of false from LockPixels, a NULL return value from GetPixBaseAddr | |
| 50 or NULL in the baseAddr field of the PixMap mean that the pixel | |
| 51 image has been purged. To reallocate it you can either call | |
| 52 UpdateGWorld or Dispose your current GWorld through | |
| 53 DisposeGWorld and reallocate it via NewGWorld. Either way you must | |
| 54 then rebuild the pixel image. | |
| 55 | |
| 56 ------------------------------------------------------------------------------------ | |
| 57 | |
| 58 Currently, I don't account for (1). In my testing, NewGWorld never invalidated | |
| 59 other existing GWorlds in VRAM. However, I do have protection for (2). | |
| 60 Namely, I am using GetOSEvent() instead of WaitNextEvent() so that there are no | |
| 61 context switches (the app hogs the CPU). Eventually a book-keeping system should | |
| 62 be coded to take care of (1) and (2). | |
| 63 | |
| 64 ------------------------------------------------------------------------------------ | |
| 65 | |
| 66 System requirements (* denotes optional): | |
| 67 | |
| 68 1. DrawSprocket 1.7.3 | |
| 69 2. *MacOS 9 or later for hardware accelerated blit / fill | |
| 70 3. *May also require certain graphics hardware for (2). I trust that all Apple OEM | |
| 71 hardware will work. Third party accelerators may work if they have QuickDraw | |
| 72 acceleration in the drivers and the drivers have been updated for OS 9. The current | |
| 73 Voodoo 3 drivers (1.0b12) do not work. | |
| 74 | |
| 75 Coding suggestions: | |
| 76 | |
| 77 1. Use SDL_UpdateRects ! | |
| 78 | |
| 79 If no QuickDraw acceleration is present, double-buffered surfaces will use a back buffer | |
| 80 in System memory. I recommend you use SDL_UpdateRects with double-buffered surfaces | |
| 81 for best performance on these cards, since the overhead is nearly zero for VRAM back buffer. | |
| 82 | |
| 83 2. Load most-resident surfaces first. | |
| 84 | |
| 85 If you fill up VRAM or AGP memory, there is no contingency for purging to make room for the next one. | |
| 86 Therefore, you should load the surfaces you plan to use the most frequently first. | |
| 87 Sooner or later, I will code LRU replacement to help this. | |
| 88 | |
| 89 TODO: | |
| 90 Some kind of posterized mode for resolutions < 640x480. | |
| 91 Window support / fullscreen toggle. | |
| 92 Figure out how much VRAM is available. Put in video->info->video_mem. | |
| 93 Track VRAM usage. | |
| 94 | |
| 95 BUGS: | |
| 96 I can't create a hardware surface the same size as the screen?! How to fix? | |
| 97 | |
| 98 | |
| 99 | |
| 100 COMPILE OPTIONS: | |
| 101 | |
| 102 DSP_TRY_CC_AND_AA - Define if you want to try HWA color-key and alpha blitters | |
| 103 HW color-key blitting gives substantial improvements, | |
| 104 but hw alpha is neck-and-neck with SDL's soft bitter. | |
| 105 | |
| 106 DSP_NO_SYNC_VBL - Define for HWA double-buffered surfaces: don't sync | |
| 107 pseudo-flip to monitor redraw. | |
| 108 | |
| 109 DSP_NO_SYNC_OPENGL - Define for OpenGL surfaces: don't sync buffer swap. Synching buffer | |
| 110 swap may result in reduced performance, but can eliminate some | |
| 111 tearing artifacts. | |
| 112 CHANGELOG: | |
| 113 09/17/00 Lots of little tweaks. Build modelist in reverse order so largest contexts | |
| 114 list first. Compared various methods with ROM methods and fixed rez switch | |
| 115 crashing bug in GL Tron. (Woohoo!) | |
| 116 */ | |
| 117 | |
| 118 #define DSP_TRY_CC_AND_AA | |
| 119 | |
| 120 /* #define DSP_NO_SYNC_VBL */ | |
| 121 | |
| 122 #define DSP_NO_SYNC_OPENGL | |
| 123 | |
| 124 | |
| 125 #ifdef SAVE_RCSID | |
| 126 static char rcsid = | |
| 127 "@(#) $Id$"; | |
| 128 #endif | |
| 129 | |
| 130 #include <stdio.h> | |
| 131 #include <stdlib.h> | |
| 132 | |
| 133 #if TARGET_API_MAC_CARBON | |
| 134 #include <Carbon.h> | |
| 135 #else | |
| 136 #include <LowMem.h> | |
| 137 #include <Gestalt.h> | |
| 138 #include <Devices.h> | |
| 139 #include <DiskInit.h> | |
| 140 #include <QDOffscreen.h> | |
| 141 #endif | |
| 142 | |
| 143 #include "SDL_video.h" | |
| 144 #include "SDL_blit.h" | |
| 145 #include "SDL_error.h" | |
| 146 #include "SDL_syswm.h" | |
| 147 #include "SDL_sysvideo.h" | |
| 148 #include "SDL_dspvideo.h" | |
| 149 #include "SDL_macgl_c.h" | |
| 150 #include "SDL_macwm_c.h" | |
| 151 #include "SDL_macmouse_c.h" | |
| 152 #include "SDL_macevents_c.h" | |
| 153 | |
| 154 /* Initialization/Query functions */ | |
| 155 static int DSp_VideoInit(_THIS, SDL_PixelFormat *vformat); | |
| 156 static SDL_Rect **DSp_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); | |
| 157 static SDL_Surface *DSp_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); | |
| 158 static int DSp_SetColors(_THIS, int firstcolor, int ncolors, | |
| 159 SDL_Color *colors); | |
| 160 static int DSp_CreatePalette(_THIS); | |
| 161 static int DSp_DestroyPalette(_THIS); | |
| 162 static void DSp_VideoQuit(_THIS); | |
| 163 | |
| 164 static int DSp_GetMainDevice (_THIS, GDHandle *device); | |
| 165 static void DSp_IsHWAvailable (_THIS, SDL_PixelFormat *vformat); | |
| 166 static void DSp_DSpUpdate(_THIS, int numrects, SDL_Rect *sdl_rects); | |
| 167 static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *sdl_rects); | |
| 168 | |
| 169 /* Hardware surface functions */ | |
| 170 static int DSp_SetHWAlpha(_THIS, SDL_Surface *surface, UInt8 alpha); | |
| 171 static int DSp_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key); | |
| 172 static int DSp_NewHWSurface(_THIS, CGrafPtr *port, int depth, int width, int height); | |
| 173 static int DSp_AllocHWSurface(_THIS, SDL_Surface *surface); | |
| 174 static int DSp_LockHWSurface(_THIS, SDL_Surface *surface); | |
| 175 static void DSp_UnlockHWSurface(_THIS, SDL_Surface *surface); | |
| 176 static void DSp_FreeHWSurface(_THIS, SDL_Surface *surface); | |
| 177 static int DSp_FlipHWSurface(_THIS, SDL_Surface *surface); | |
| 178 static int DSp_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dest); | |
| 179 static int DSp_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 180 SDL_Surface *dst, SDL_Rect *dstrect); | |
| 181 static int DSp_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); | |
| 182 | |
| 183 #ifdef HAVE_OPENGL | |
| 184 static void DSp_GL_SwapBuffers (_THIS); | |
| 185 #endif | |
| 186 | |
| 187 #if ! TARGET_API_MAC_CARBON | |
| 188 | |
| 189 #define GetPortPixRowBytes(x) ( (*(x->portPixMap))->rowBytes ) | |
| 190 #define GetGDevPixMap(x) ((**(x)).gdPMap) | |
| 191 #define GetPortPixMap(x) ((*(x)).portPixMap) | |
| 192 | |
| 193 #define GetPixDepth(y) ((**(y)).pixelSize) | |
| 194 //#define GetPixRowBytes(y) ((**(y)).rowBytes) | |
| 195 //#define GetPixBaseAddr(y) ((**(y)).baseAddr) | |
| 196 #define GetPixCTab(y) ((**(y)).pmTable) | |
| 197 #define GetPortBitMapForCopyBits(x) (&(((GrafPtr)(x))->portBits)) | |
| 198 | |
| 199 #else | |
| 200 #define GetPortPixRowBytes(x) (GetPixRowBytes(GetPortPixMap(x)) ) | |
| 201 #define GetGDevPixMap(x) ((**(x)).gdPMap) | |
| 202 | |
| 203 #endif | |
| 204 | |
| 205 typedef struct private_hwdata { | |
| 206 | |
| 207 GWorldPtr offscreen; // offscreen gworld in VRAM or AGP | |
| 208 | |
| 209 #ifdef DSP_TRY_CC_AND_AA | |
| 210 GWorldPtr mask; // transparent mask | |
| 211 RGBColor alpha; // alpha color | |
| 212 RGBColor trans; // transparent color | |
| 213 #endif | |
| 214 | |
| 215 } private_hwdata; | |
| 216 | |
| 217 typedef private_hwdata private_swdata ; /* have same fields */ | |
| 218 | |
| 219 /* Macintosh toolbox driver bootstrap functions */ | |
| 220 | |
| 221 static int DSp_Available(void) | |
| 222 { | |
| 223 /* Check for DrawSprocket */ | |
| 224 /* This check is only meaningful if you weak-link DrawSprocketLib */ | |
| 225 return ((Ptr)DSpStartup != (Ptr)kUnresolvedCFragSymbolAddress); | |
| 226 } | |
| 227 | |
| 228 static void DSp_DeleteDevice(SDL_VideoDevice *device) | |
| 229 { | |
| 230 /* -dw- taking no chances with null pointers */ | |
| 231 if (device) { | |
| 232 | |
| 233 if (device->hidden) { | |
| 234 | |
| 235 if (device->hidden->dspinfo) | |
| 236 free(device->hidden->dspinfo); | |
| 237 | |
| 238 free(device->hidden); | |
| 239 } | |
| 240 free(device); | |
| 241 } | |
| 242 } | |
| 243 | |
| 244 static SDL_VideoDevice *DSp_CreateDevice(int devindex) | |
| 245 { | |
| 246 SDL_VideoDevice *device; | |
| 247 | |
| 248 /* Initialize all variables that we clean on shutdown */ | |
| 249 device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice)); | |
| 250 if ( device ) { | |
| 251 memset(device, 0, sizeof (*device)); | |
| 252 device->hidden = (struct SDL_PrivateVideoData *) | |
| 253 malloc((sizeof *device->hidden)); | |
| 254 if (device->hidden) | |
| 255 memset(device->hidden, 0, sizeof ( *(device->hidden) ) ); | |
| 256 } | |
| 257 if ( (device == NULL) || (device->hidden == NULL) ) { | |
| 258 SDL_OutOfMemory(); | |
| 259 | |
| 260 if ( device ) { | |
| 261 | |
| 262 if (device->hidden) | |
| 263 free (device->hidden); | |
| 264 | |
| 265 free(device); | |
| 266 } | |
| 267 | |
| 268 return(NULL); | |
| 269 } | |
| 270 | |
| 271 /* Allocate DrawSprocket information */ | |
| 272 device->hidden->dspinfo = (struct DSpInfo *)malloc( | |
| 273 (sizeof *device->hidden->dspinfo)); | |
| 274 if ( device->hidden->dspinfo == NULL ) { | |
| 275 SDL_OutOfMemory(); | |
| 276 free(device->hidden); | |
| 277 free(device); | |
| 278 return(0); | |
| 279 } | |
| 280 memset(device->hidden->dspinfo, 0, (sizeof *device->hidden->dspinfo)); | |
| 281 | |
| 282 /* Set the function pointers */ | |
| 283 device->VideoInit = DSp_VideoInit; | |
| 284 device->ListModes = DSp_ListModes; | |
| 285 device->SetVideoMode = DSp_SetVideoMode; | |
| 286 device->SetColors = DSp_SetColors; | |
| 287 device->UpdateRects = NULL; | |
| 288 device->VideoQuit = DSp_VideoQuit; | |
| 289 device->AllocHWSurface = DSp_AllocHWSurface; | |
| 290 device->CheckHWBlit = NULL; | |
| 291 device->FillHWRect = NULL; | |
| 292 device->SetHWColorKey = NULL; | |
| 293 device->SetHWAlpha = NULL; | |
| 294 device->LockHWSurface = DSp_LockHWSurface; | |
| 295 device->UnlockHWSurface = DSp_UnlockHWSurface; | |
| 296 device->FlipHWSurface = DSp_FlipHWSurface; | |
| 297 device->FreeHWSurface = DSp_FreeHWSurface; | |
| 298 #ifdef HAVE_OPENGL | |
| 299 device->GL_MakeCurrent = Mac_GL_MakeCurrent; | |
| 300 device->GL_SwapBuffers = DSp_GL_SwapBuffers; | |
| 301 #endif | |
| 302 device->SetCaption = NULL; | |
| 303 device->SetIcon = NULL; | |
| 304 device->IconifyWindow = NULL; | |
| 305 device->GrabInput = NULL; | |
| 306 device->GetWMInfo = NULL; | |
| 307 device->FreeWMCursor = Mac_FreeWMCursor; | |
| 308 device->CreateWMCursor = Mac_CreateWMCursor; | |
| 309 device->ShowWMCursor = Mac_ShowWMCursor; | |
| 310 device->WarpWMCursor = Mac_WarpWMCursor; | |
| 311 device->InitOSKeymap = Mac_InitOSKeymap; | |
| 312 device->PumpEvents = Mac_PumpEvents; | |
| 313 | |
| 314 device->GrabInput = NULL; | |
| 315 device->CheckMouseMode = NULL; | |
| 316 | |
| 317 device->free = DSp_DeleteDevice; | |
| 318 | |
| 319 return device; | |
| 320 } | |
| 321 | |
| 322 VideoBootStrap DSp_bootstrap = { | |
| 323 "DSp", "MacOS DrawSprocket", | |
| 324 DSp_Available, DSp_CreateDevice | |
| 325 }; | |
| 326 | |
| 327 /* Use DSp/Display Manager to build mode list for given screen */ | |
| 328 static SDL_Rect** DSp_BuildModeList (const GDHandle gDevice) | |
| 329 { | |
| 330 DSpContextAttributes attributes; | |
| 331 DSpContextReference context; | |
| 332 DisplayIDType displayID; | |
| 333 SDL_Rect temp_list [16]; | |
| 334 SDL_Rect **mode_list; | |
| 335 int width, height, i, j; | |
| 336 | |
| 337 #if TARGET_API_MAC_OSX | |
| 338 | |
| 339 displayID = 0; | |
| 340 | |
| 341 #else | |
| 342 /* Ask Display Manager for integer id of screen device */ | |
| 343 if ( DMGetDisplayIDByGDevice (gDevice, &displayID, SDL_TRUE) != noErr ) { | |
| 344 return NULL; | |
| 345 } | |
| 346 #endif | |
| 347 /* Get the first possible DSp context on this device */ | |
| 348 if ( DSpGetFirstContext (displayID, &context) != noErr ) { | |
| 349 return NULL; | |
| 350 } | |
| 351 | |
| 352 if ( DSpContext_GetAttributes (context, &attributes) != noErr ) | |
| 353 return NULL; | |
| 354 | |
| 355 for ( i = 0; i < SDL_TABLESIZE(temp_list); i++ ) { | |
| 356 width = attributes.displayWidth; | |
| 357 height = attributes.displayHeight; | |
| 358 | |
| 359 temp_list [i].x = 0 | attributes.displayBestDepth; | |
| 360 temp_list [i].y = 0; | |
| 361 temp_list [i].w = width; | |
| 362 temp_list [i].h = height; | |
| 363 | |
| 364 /* DSp will report many different contexts with the same width and height. */ | |
| 365 /* They will differ in bit depth and refresh rate. */ | |
| 366 /* We will ignore them until we reach one with a different width/height */ | |
| 367 /* When there are no more contexts to look at, we will quit building the list*/ | |
| 368 while ( width == attributes.displayWidth && height == attributes.displayHeight ) { | |
| 369 | |
| 370 OSStatus err = DSpGetNextContext (context, &context); | |
| 371 if (err != noErr) | |
| 372 if (err == kDSpContextNotFoundErr) | |
| 373 goto done; | |
| 374 else | |
| 375 return NULL; | |
| 376 | |
| 377 if ( DSpContext_GetAttributes (context, &attributes) != noErr ) | |
| 378 return NULL; | |
| 379 | |
| 380 temp_list [i].x |= attributes.displayBestDepth; | |
| 381 } | |
| 382 } | |
| 383 done: | |
| 384 i++; /* i was not incremented before kicking out of the loop */ | |
| 385 | |
| 386 mode_list = (SDL_Rect**) malloc (sizeof (SDL_Rect*) * (i+1)); | |
| 387 if (mode_list) { | |
| 388 | |
| 389 /* -dw- new stuff: build in reverse order so largest sizes list first */ | |
| 390 for (j = i-1; j >= 0; j--) { | |
| 391 mode_list [j] = (SDL_Rect*) malloc (sizeof (SDL_Rect)); | |
| 392 if (mode_list [j]) | |
| 393 memcpy (mode_list [j], &(temp_list [j]), sizeof (SDL_Rect)); | |
| 394 else { | |
| 395 SDL_OutOfMemory (); | |
| 396 return NULL; | |
| 397 } | |
| 398 } | |
| 399 mode_list [i] = NULL; /* append null to the end */ | |
| 400 } | |
| 401 else { | |
| 402 SDL_OutOfMemory (); | |
| 403 return NULL; | |
| 404 } | |
| 405 | |
| 406 return mode_list; | |
| 407 } | |
| 408 | |
| 409 static void DSp_IsHWAvailable (_THIS, SDL_PixelFormat *vformat) | |
| 410 { | |
| 411 /* | |
| 412 VRAM GWorlds are only available on OS 9 or later. | |
| 413 Even with OS 9, some display drivers won't support it, | |
| 414 so we create a test GWorld and check for errors. | |
| 415 */ | |
| 416 | |
| 417 long versionSystem; | |
| 418 | |
| 419 dsp_vram_available = SDL_FALSE; | |
| 420 dsp_agp_available = SDL_FALSE; | |
| 421 | |
| 422 Gestalt ('sysv', &versionSystem); | |
| 423 if (0x00000860 < (versionSystem & 0x0000FFFF)) { | |
| 424 | |
| 425 GWorldPtr offscreen; | |
| 426 OSStatus err; | |
| 427 Rect bounds; | |
| 428 | |
| 429 SetRect (&bounds, 0, 0, 320, 240); | |
| 430 | |
| 431 err = NewGWorld (&offscreen, vformat->BitsPerPixel, &bounds, NULL, SDL_Display, useDistantHdwrMem | noNewDevice); | |
| 432 if (err == noErr) { | |
| 433 dsp_vram_available = SDL_TRUE; | |
| 434 DisposeGWorld (offscreen); | |
| 435 } | |
| 436 | |
| 437 err = NewGWorld (&offscreen, vformat->BitsPerPixel, &bounds, NULL, SDL_Display, useLocalHdwrMem | noNewDevice); | |
| 438 if (err == noErr) { | |
| 439 DisposeGWorld (offscreen); | |
| 440 dsp_agp_available = SDL_TRUE; | |
| 441 } | |
| 442 } | |
| 443 } | |
| 444 | |
| 445 static int DSp_GetMainDevice (_THIS, GDHandle *device) | |
| 446 { | |
| 447 | |
| 448 #if TARGET_API_MAC_OSX | |
| 449 /* DSpUserSelectContext not available on OS X */ | |
| 450 *device = GetMainDevice(); | |
| 451 return 0; | |
| 452 #else | |
| 453 | |
| 454 DSpContextAttributes attrib; | |
| 455 DSpContextReference context; | |
| 456 DisplayIDType display_id; | |
| 457 GDHandle main_device; | |
| 458 GDHandle device_list; | |
| 459 | |
| 460 device_list = GetDeviceList (); | |
| 461 main_device = GetMainDevice (); | |
| 462 | |
| 463 /* Quick check to avoid slower method when only one display exists */ | |
| 464 if ( (**device_list).gdNextGD == NULL ) { | |
| 465 *device = main_device; | |
| 466 return 0; | |
| 467 } | |
| 468 | |
| 469 memset (&attrib, 0, sizeof (DSpContextAttributes)); | |
| 470 | |
| 471 /* These attributes are hopefully supported on all devices...*/ | |
| 472 attrib.displayWidth = 640; | |
| 473 attrib.displayHeight = 480; | |
| 474 attrib.displayBestDepth = 8; | |
| 475 attrib.backBufferBestDepth = 8; | |
| 476 attrib.displayDepthMask = kDSpDepthMask_All; | |
| 477 attrib.backBufferDepthMask = kDSpDepthMask_All; | |
| 478 attrib.colorNeeds = kDSpColorNeeds_Require; | |
| 479 attrib.pageCount = 1; | |
| 480 | |
| 481 if (noErr != DMGetDisplayIDByGDevice (main_device, &display_id, SDL_FALSE)) { | |
| 482 SDL_SetError ("Display Manager couldn't associate GDevice with a Display ID"); | |
| 483 return (-1); | |
| 484 } | |
| 485 | |
| 486 /* Put up dialog on main display to select which display to use */ | |
| 487 if (noErr != DSpUserSelectContext (&attrib, display_id, NULL, &context)) { | |
| 488 SDL_SetError ("DrawSprocket couldn't create a context"); | |
| 489 return (-1); | |
| 490 } | |
| 491 | |
| 492 if (noErr != DSpContext_GetDisplayID (context, &display_id)) { | |
| 493 SDL_SetError ("DrawSprocket couldn't get display ID"); | |
| 494 return (-1); | |
| 495 } | |
| 496 | |
| 497 if (noErr != DMGetGDeviceByDisplayID (display_id, &main_device, SDL_FALSE)) { | |
| 498 SDL_SetError ("Display Manager couldn't associate Display ID with GDevice"); | |
| 499 return (-1); | |
| 500 } | |
| 501 | |
| 502 *device = main_device; | |
| 503 return (0); | |
| 504 #endif | |
| 505 } | |
| 506 | |
| 507 static int DSp_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 508 { | |
| 509 | |
| 510 NumVersion dsp_version = DSpGetVersion (); | |
| 511 | |
| 512 if ( (dsp_version.majorRev == 1 && dsp_version.minorAndBugRev < 0x73) || | |
| 513 (dsp_version.majorRev < 1) ) { | |
| 514 | |
| 515 /* StandardAlert (kAlertStopAlert, "\pError!", | |
| 516 "\pI need DrawSprocket 1.7.3 or later!\n" | |
| 517 "You can find a newer version at http://www.apple.com/swupdates.", | |
| 518 NULL, NULL); | |
| 519 */ | |
| 520 SDL_SetError ("DrawSprocket version is too old. Need 1.7.3 or later."); | |
| 521 return (-1); | |
| 522 } | |
| 523 | |
| 524 if ( DSpStartup () != noErr ) { | |
| 525 SDL_SetError ("DrawSprocket couldn't startup"); | |
| 526 return(-1); | |
| 527 } | |
| 528 | |
| 529 /* Start DSpintosh events */ | |
| 530 Mac_InitEvents(this); | |
| 531 | |
| 532 /* Get a handle to the main monitor, or choose one on multiple monitor setups */ | |
| 533 if ( DSp_GetMainDevice(this, &SDL_Display) < 0) | |
| 534 return (-1); | |
| 535 | |
| 536 /* Determine pixel format */ | |
| 537 vformat->BitsPerPixel = GetPixDepth ( (**SDL_Display).gdPMap ); | |
| 538 dsp_old_depth = vformat->BitsPerPixel; | |
| 539 | |
| 540 switch (vformat->BitsPerPixel) { | |
| 541 case 16: | |
| 542 vformat->Rmask = 0x00007c00; | |
| 543 vformat->Gmask = 0x000003e0; | |
| 544 vformat->Bmask = 0x0000001f; | |
| 545 break; | |
| 546 default: | |
| 547 break; | |
| 548 } | |
| 549 | |
| 550 if ( DSp_CreatePalette (this) < 0 ) { | |
| 551 | |
| 552 SDL_SetError ("Could not create palette"); | |
| 553 return (-1); | |
| 554 } | |
| 555 | |
| 556 /* Get a list of available fullscreen modes */ | |
| 557 SDL_modelist = DSp_BuildModeList (SDL_Display); | |
| 558 if (SDL_modelist == NULL) { | |
| 559 SDL_SetError ("DrawSprocket could not build a mode list"); | |
| 560 return (-1); | |
| 561 } | |
| 562 | |
| 563 /* Check for VRAM and AGP GWorlds for HW Blitting */ | |
| 564 DSp_IsHWAvailable (this, vformat); | |
| 565 | |
| 566 this->info.wm_available = 0; | |
| 567 | |
| 568 if (dsp_vram_available || dsp_agp_available) { | |
| 569 | |
| 570 this->info.hw_available = SDL_TRUE; | |
| 571 | |
| 572 this->CheckHWBlit = DSp_CheckHWBlit; | |
| 573 this->info.blit_hw = SDL_TRUE; | |
| 574 | |
| 575 this->FillHWRect = DSp_FillHWRect; | |
| 576 this->info.blit_fill = SDL_TRUE; | |
| 577 | |
| 578 #ifdef DSP_TRY_CC_AND_AA | |
| 579 this->SetHWColorKey = DSp_SetHWColorKey; | |
| 580 this->info.blit_hw_CC = SDL_TRUE; | |
| 581 | |
| 582 this->SetHWAlpha = DSp_SetHWAlpha; | |
| 583 this->info.blit_hw_A = SDL_TRUE; | |
| 584 #endif | |
| 585 | |
| 586 } | |
| 587 | |
| 588 return(0); | |
| 589 } | |
| 590 | |
| 591 static SDL_Rect **DSp_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 592 { | |
| 593 static SDL_Rect *dsp_modes[16]; | |
| 594 int i = 0, j = 0; | |
| 595 | |
| 596 if ( format->BitsPerPixel == 0 ) | |
| 597 return ( (SDL_Rect**) NULL ); | |
| 598 | |
| 599 while (SDL_modelist[i] != NULL) { | |
| 600 | |
| 601 if (SDL_modelist[i]->x & format->BitsPerPixel) { | |
| 602 dsp_modes[j] = SDL_modelist[i]; | |
| 603 j++; | |
| 604 } | |
| 605 i++; | |
| 606 } | |
| 607 | |
| 608 dsp_modes[j] = NULL; | |
| 609 | |
| 610 return dsp_modes; | |
| 611 } | |
| 612 | |
| 613 /* Various screen update functions available */ | |
| 614 static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 615 | |
| 616 static volatile unsigned int retrace_count = 0; /* -dw- need volatile because it updates asychronously */ | |
| 617 | |
| 618 #if ! TARGET_API_MAC_OSX | |
| 619 Boolean DSp_VBLProc ( DSpContextReference context, void *ref_con ) | |
| 620 { | |
| 621 retrace_count++; | |
| 622 | |
| 623 return 1; /* Darrell, is this right? */ | |
| 624 } | |
| 625 #endif | |
| 626 | |
| 627 static void DSp_SetHWError (OSStatus err, int is_agp) | |
| 628 { | |
| 629 char message[1024]; | |
| 630 const char *fmt, *mem; | |
| 631 | |
| 632 if ( is_agp ) { | |
| 633 mem = "AGP Memory"; | |
| 634 } else { | |
| 635 mem = "VRAM"; | |
| 636 } | |
| 637 switch(err) { | |
| 638 case memFullErr: | |
| 639 fmt = "Hardware surface possible but not enough %s available"; | |
| 640 break; | |
| 641 case cDepthErr: | |
| 642 fmt = "Hardware surface possible but invalid color depth"; | |
| 643 break; | |
| 644 default: | |
| 645 fmt = "Hardware surface could not be allocated in %s - unknown error"; | |
| 646 break; | |
| 647 } | |
| 648 sprintf(message, fmt, mem); | |
| 649 SDL_SetError(message); | |
| 650 } | |
| 651 | |
| 652 /* put up a dialog to verify display change */ | |
| 653 static int DSp_ConfirmSwitch () { | |
| 654 | |
| 655 /* resource id's for dialog */ | |
| 656 const int rDialog = 1002; | |
| 657 const int bCancel = 1; | |
| 658 const int bOK = 2; | |
| 659 | |
| 660 DialogPtr dialog; | |
| 661 OSStatus err; | |
| 662 SInt32 response; | |
| 663 DialogItemIndex item = 0; | |
| 664 GrafPtr savePort; | |
| 665 | |
| 666 GetPort (&savePort); | |
| 667 | |
| 668 dialog = GetNewDialog (rDialog, NULL, (WindowPtr) -1); | |
| 669 if (dialog == NULL) | |
| 670 return (0); | |
| 671 | |
| 672 SetPort (dialog); | |
| 673 | |
| 674 SetDialogDefaultItem (dialog, bCancel); | |
| 675 SetDialogCancelItem (dialog, bCancel); | |
| 676 | |
| 677 SetEventMask (everyEvent); | |
| 678 FlushEvents (everyEvent, 0); | |
| 679 | |
| 680 /* On MacOS 8.5 or later, we can make the dialog go away after 15 seconds */ | |
| 681 /* This is good since it's possible user can't even see the dialog! */ | |
| 682 /* Requires linking to DialogsLib */ | |
| 683 err = Gestalt(gestaltSystemVersion,&response); | |
| 684 if (err == noErr && response >= 0x00000850) { | |
| 685 SetDialogTimeout(dialog, bCancel, 15); | |
| 686 } | |
| 687 | |
| 688 do { | |
| 689 | |
| 690 ModalDialog ( NULL, &item ); | |
| 691 | |
| 692 } while ( item != bCancel && item != bOK && err != noErr); | |
| 693 | |
| 694 DisposeWindow (dialog); | |
| 695 SetPort (savePort); | |
| 696 | |
| 697 SetEventMask(everyEvent - autoKeyMask); | |
| 698 FlushEvents(everyEvent, 0); | |
| 699 | |
| 700 return (item - 1); | |
| 701 } | |
| 702 | |
| 703 static void DSp_UnsetVideoMode(_THIS, SDL_Surface *current) | |
| 704 { | |
| 705 | |
| 706 | |
| 707 if ( current->flags & SDL_OPENGL ) { | |
| 708 Mac_GL_Quit (this); | |
| 709 } | |
| 710 | |
| 711 if (dsp_context != NULL) { | |
| 712 | |
| 713 GWorldPtr front; | |
| 714 DSpContext_GetFrontBuffer (dsp_context, &front); | |
| 715 | |
| 716 if (front != dsp_back_buffer) | |
| 717 DisposeGWorld (dsp_back_buffer); | |
| 718 | |
| 719 if (current->hwdata) | |
| 720 free (current->hwdata); | |
| 721 | |
| 722 DSpContext_SetState (dsp_context, kDSpContextState_Inactive ); | |
| 723 DSpContext_Release (dsp_context); | |
| 724 | |
| 725 dsp_context = NULL; | |
| 726 } | |
| 727 | |
| 728 if (SDL_Window != NULL) { | |
| 729 DisposeWindow (SDL_Window); | |
| 730 SDL_Window = NULL; | |
| 731 } | |
| 732 | |
| 733 current->pixels = NULL; | |
| 734 current->flags = 0; | |
| 735 } | |
| 736 | |
| 737 static SDL_Surface *DSp_SetVideoMode(_THIS, | |
| 738 SDL_Surface *current, int width, int height, int bpp, Uint32 flags) | |
| 739 { | |
| 740 | |
| 741 DisplayIDType display_id; | |
| 742 DSpContextAttributes attrib; | |
| 743 Fixed freq; | |
| 744 OSStatus err; | |
| 745 UInt32 rmask = 0, gmask = 0, bmask = 0; | |
| 746 | |
| 747 int page_count; | |
| 748 int double_buf; | |
| 749 int hw_surface; | |
| 750 int use_dsp_back_buffer; | |
| 751 | |
| 752 DSp_UnsetVideoMode (this, current); | |
| 753 | |
| 754 if (bpp != dsp_old_depth) | |
| 755 DSp_DestroyPalette (this); | |
| 756 | |
| 757 double_buf = (flags & SDL_DOUBLEBUF) != 0; | |
| 758 hw_surface = (flags & SDL_HWSURFACE) != 0; | |
| 759 use_dsp_back_buffer = !dsp_vram_available || !hw_surface ; | |
| 760 | |
| 761 current->flags |= SDL_FULLSCREEN; | |
| 762 | |
| 763 rebuild: | |
| 764 | |
| 765 if ( double_buf && use_dsp_back_buffer ) { | |
| 766 page_count = 2; | |
| 767 } else { | |
| 768 page_count = 1; | |
| 769 } | |
| 770 | |
| 771 memset (&attrib, 0, sizeof (DSpContextAttributes)); | |
| 772 attrib.displayWidth = width; | |
| 773 attrib.displayHeight = height; | |
| 774 attrib.displayBestDepth = bpp; | |
| 775 attrib.backBufferBestDepth = bpp; | |
| 776 attrib.displayDepthMask = kDSpDepthMask_All; | |
| 777 attrib.backBufferDepthMask = kDSpDepthMask_All; | |
| 778 attrib.colorNeeds = kDSpColorNeeds_Require; | |
| 779 attrib.colorTable = 0; | |
| 780 attrib.pageCount = page_count; | |
| 781 #if TARGET_API_MAC_OSX | |
| 782 | |
| 783 if ( DSpFindBestContext (&attrib, &dsp_context) != noErr ) { | |
| 784 SDL_SetError ("DrawSprocket couldn't find a context"); | |
| 785 return NULL; | |
| 786 } | |
| 787 | |
| 788 #else | |
| 789 if ( noErr != DMGetDisplayIDByGDevice (SDL_Display, &display_id, SDL_FALSE) ) { | |
| 790 SDL_SetError ("Display Manager couldn't associate GDevice with display_id"); | |
| 791 return NULL; | |
| 792 } | |
| 793 if ( DSpFindBestContextOnDisplayID (&attrib, &dsp_context, display_id) != noErr ) { | |
| 794 SDL_SetError ("DrawSprocket couldn't find a suitable context on given display"); | |
| 795 return NULL; | |
| 796 } | |
| 797 | |
| 798 #endif | |
| 799 if ( DSpContext_Reserve (dsp_context, &attrib) != noErr ) { | |
| 800 SDL_SetError ("DrawSprocket couldn't get the needed resources to build the display"); | |
| 801 return NULL; | |
| 802 } | |
| 803 | |
| 804 if ( (err = DSpContext_SetState (dsp_context, kDSpContextState_Active)) != noErr ) { | |
| 805 | |
| 806 if (err == kDSpConfirmSwitchWarning) { | |
| 807 | |
| 808 if ( ! DSp_ConfirmSwitch () ) { | |
| 809 | |
| 810 DSpContext_Release (dsp_context); | |
| 811 dsp_context = NULL; | |
| 812 SDL_SetError ("User cancelled display switch"); | |
| 813 return NULL; | |
| 814 } | |
| 815 else | |
| 816 /* Have to reactivate context. Why? */ | |
| 817 DSpContext_SetState (dsp_context, kDSpContextState_Active); | |
| 818 | |
| 819 } | |
| 820 else { | |
| 821 SDL_SetError ("DrawSprocket couldn't activate the context"); | |
| 822 return NULL; | |
| 823 } | |
| 824 } | |
| 825 | |
| 826 | |
| 827 if (bpp != dsp_old_depth) { | |
| 828 | |
| 829 DSp_CreatePalette (this); | |
| 830 | |
| 831 /* update format if display depth changed */ | |
| 832 if (bpp == 16) { | |
| 833 | |
| 834 rmask = 0x00007c00; | |
| 835 gmask = 0x000003e0; | |
| 836 bmask = 0x0000001f; | |
| 837 } | |
| 838 if ( ! SDL_ReallocFormat (current, bpp, rmask, gmask, bmask, 0 ) ) { | |
| 839 | |
| 840 SDL_SetError ("Could not reallocate video format."); | |
| 841 return(NULL); | |
| 842 } | |
| 843 } | |
| 844 | |
| 845 if (!double_buf) { | |
| 846 | |
| 847 /* single-buffer context */ | |
| 848 DSpContext_GetFrontBuffer (dsp_context, &dsp_back_buffer); | |
| 849 | |
| 850 current->hwdata = (private_hwdata*) malloc (sizeof (private_hwdata)); | |
| 851 if (current ->hwdata == NULL) { | |
| 852 SDL_OutOfMemory (); | |
| 853 return NULL; | |
| 854 } | |
| 855 current->hwdata->offscreen = dsp_back_buffer; | |
| 856 current->flags |= SDL_HWSURFACE; | |
| 857 this->UpdateRects = DSp_DirectUpdate; | |
| 858 } | |
| 859 else if ( use_dsp_back_buffer ) { | |
| 860 | |
| 861 DSpContext_GetBackBuffer (dsp_context, kDSpBufferKind_Normal, &dsp_back_buffer); | |
| 862 | |
| 863 current->flags |= SDL_DOUBLEBUF | SDL_SWSURFACE; /* only front buffer is in VRAM */ | |
| 864 this->UpdateRects = DSp_DSpUpdate; | |
| 865 } | |
| 866 else if ( DSp_NewHWSurface(this, &dsp_back_buffer, bpp, width-1, height-1) == 0 ) { | |
| 867 | |
| 868 current->hwdata = (private_hwdata*) malloc (sizeof (private_hwdata)); | |
| 869 if (current ->hwdata == NULL) { | |
| 870 SDL_OutOfMemory (); | |
| 871 return NULL; | |
| 872 } | |
| 873 | |
| 874 memset (current->hwdata, 0, sizeof (private_hwdata)); | |
| 875 current->hwdata->offscreen = dsp_back_buffer; | |
| 876 current->flags |= SDL_DOUBLEBUF | SDL_HWSURFACE; | |
| 877 this->UpdateRects = DSp_DirectUpdate; /* hardware doesn't do update rects, must be page-flipped */ | |
| 878 } | |
| 879 else { | |
| 880 | |
| 881 DSpContext_Release (dsp_context); | |
| 882 use_dsp_back_buffer = SDL_TRUE; | |
| 883 goto rebuild; | |
| 884 } | |
| 885 | |
| 886 current->pitch = GetPortPixRowBytes(dsp_back_buffer) & 0x3FFF; | |
| 887 current->pixels = GetPixBaseAddr(GetPortPixMap(dsp_back_buffer)); | |
| 888 | |
| 889 current->w = width; | |
| 890 current->h = height; | |
| 891 | |
| 892 #if ! TARGET_API_MAC_OSX | |
| 893 | |
| 894 if (use_dsp_back_buffer) { | |
| 895 | |
| 896 DSpContext_GetMonitorFrequency (dsp_context, &freq); | |
| 897 DSpContext_SetMaxFrameRate (dsp_context, freq >> 16); | |
| 898 } | |
| 899 | |
| 900 | |
| 901 if ( (current->flags & SDL_HWSURFACE) || (current->flags & SDL_OPENGL) ) | |
| 902 DSpContext_SetVBLProc (dsp_context, DSp_VBLProc, NULL); | |
| 903 #endif | |
| 904 | |
| 905 if (bpp == 8) | |
| 906 current->flags |= SDL_HWPALETTE; | |
| 907 | |
| 908 if (flags & SDL_OPENGL) { | |
| 909 | |
| 910 Rect rect; | |
| 911 RGBColor rgb = { 0.0, 0.0, 0.0 }; | |
| 912 GrafPtr save_port; | |
| 913 | |
| 914 SetRect (&rect, 0, 0, width, height); | |
| 915 SDL_Window = NewCWindow(nil, &( (**SDL_Display).gdRect), "\p", SDL_TRUE, plainDBox, (WindowPtr)-1, SDL_FALSE, 0); | |
| 916 | |
| 917 if (SDL_Window == NULL) { | |
| 918 | |
| 919 SDL_SetError ("DSp_SetVideoMode : OpenGL window could not be created."); | |
| 920 return NULL; | |
| 921 } | |
| 922 | |
| 923 /* Set window color to black to avoid white flash*/ | |
| 924 GetPort (&save_port); | |
| 925 SetPort (SDL_Window); | |
| 926 RGBForeColor (&rgb); | |
| 927 PaintRect (&rect); | |
| 928 SetPort (save_port); | |
| 929 | |
| 930 SetPortWindowPort (SDL_Window); | |
| 931 SelectWindow (SDL_Window); | |
| 932 | |
| 933 if ( Mac_GL_Init (this) < 0 ) { | |
| 934 | |
| 935 SDL_SetError ("DSp_SetVideoMode : could not create OpenGL context."); | |
| 936 return NULL; | |
| 937 } | |
| 938 | |
| 939 current->flags |= SDL_OPENGL; | |
| 940 } | |
| 941 | |
| 942 return current; | |
| 943 } | |
| 944 | |
| 945 #ifdef DSP_TRY_CC_AND_AA | |
| 946 | |
| 947 static int DSp_MakeHWMask (_THIS, SDL_Surface *surface) | |
| 948 { | |
| 949 GDHandle save_device; | |
| 950 CGrafPtr save_port; | |
| 951 GWorldPtr temp; | |
| 952 RGBColor black = { 0, 0, 0 }; | |
| 953 RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF }; | |
| 954 Rect rect; | |
| 955 | |
| 956 Uint32 depth = GetPixDepth ( GetGDevPixMap (SDL_Display) ); | |
| 957 | |
| 958 SetRect (&rect, 0, 0, surface->w, surface->h); | |
| 959 | |
| 960 if ( noErr != NewGWorld (&(surface->hwdata->mask), depth, &rect, 0, SDL_Display, 0 ) < 0 ) { | |
| 961 | |
| 962 SDL_OutOfMemory (); | |
| 963 return (-1); | |
| 964 } | |
| 965 | |
| 966 if ( noErr != NewGWorld (&temp, depth, &rect, 0 , SDL_Display, 0 ) ) { | |
| 967 | |
| 968 SDL_OutOfMemory (); | |
| 969 return (-1); | |
| 970 } | |
| 971 | |
| 972 | |
| 973 GetGWorld (&save_port, &save_device); | |
| 974 SetGWorld (surface->hwdata->mask, SDL_Display); | |
| 975 | |
| 976 RGBForeColor (&white); | |
| 977 PaintRect (&rect); | |
| 978 | |
| 979 RGBBackColor (&(surface->hwdata->trans)); | |
| 980 | |
| 981 CopyBits ( GetPortBitMapForCopyBits(surface->hwdata->offscreen), | |
| 982 GetPortBitMapForCopyBits(surface->hwdata->mask), | |
| 983 &rect, &rect, transparent, NULL ); | |
| 984 | |
| 985 SetGWorld (surface->hwdata->mask, SDL_Display); | |
| 986 SetGWorld (save_port, save_device); | |
| 987 return (0); | |
| 988 } | |
| 989 | |
| 990 static int DSp_SetHWAlpha(_THIS, SDL_Surface *surface, UInt8 alpha) | |
| 991 { | |
| 992 surface->hwdata->alpha.red = (alpha / 255.0) * 65535; | |
| 993 surface->hwdata->alpha.blue = (alpha / 255.0) * 65535; | |
| 994 surface->hwdata->alpha.green = (alpha / 255.0) * 65535; | |
| 995 | |
| 996 surface->flags |= SDL_SRCALPHA; | |
| 997 | |
| 998 if (surface->flags & SDL_SRCCOLORKEY) { | |
| 999 return(DSp_MakeHWMask (this, surface)); | |
| 1000 } | |
| 1001 return(0); | |
| 1002 } | |
| 1003 | |
| 1004 static int DSp_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | |
| 1005 { | |
| 1006 CGrafPtr save_port; | |
| 1007 GDHandle save_device; | |
| 1008 | |
| 1009 GetGWorld (&save_port, &save_device); | |
| 1010 SetGWorld (surface->hwdata->offscreen, NULL); | |
| 1011 | |
| 1012 Index2Color (key, &(surface->hwdata->trans)); | |
| 1013 surface->flags |= SDL_SRCCOLORKEY; | |
| 1014 | |
| 1015 SetGWorld (save_port, save_device); | |
| 1016 | |
| 1017 if ( surface->flags & SDL_SRCALPHA ) { | |
| 1018 return(DSp_MakeHWMask (this, surface)); | |
| 1019 } | |
| 1020 return(0); | |
| 1021 } | |
| 1022 | |
| 1023 #endif /* DSP_TRY_CC_AND_AA */ | |
| 1024 | |
| 1025 static int DSp_NewHWSurface(_THIS, CGrafPtr *port, int depth, int width, int height) { | |
| 1026 | |
| 1027 OSStatus err; | |
| 1028 Rect bounds; | |
| 1029 | |
| 1030 SetRect (&bounds, 0, 0, width, height); | |
| 1031 | |
| 1032 if (dsp_vram_available) { | |
| 1033 /* try VRAM */ | |
| 1034 err = NewGWorld (port, depth, &bounds, 0 , SDL_Display, useDistantHdwrMem | noNewDevice ); | |
| 1035 if (err != noErr) | |
| 1036 DSp_SetHWError (err, SDL_FALSE); | |
| 1037 else | |
| 1038 return (0); | |
| 1039 } | |
| 1040 | |
| 1041 if (dsp_agp_available) { | |
| 1042 /* try AGP */ | |
| 1043 err = NewGWorld (port, depth, &bounds, 0 , SDL_Display, useLocalHdwrMem | noNewDevice ); | |
| 1044 | |
| 1045 if (err != noErr) | |
| 1046 DSp_SetHWError (err, SDL_TRUE); | |
| 1047 else | |
| 1048 return (0); | |
| 1049 } | |
| 1050 | |
| 1051 return (-1); | |
| 1052 } | |
| 1053 | |
| 1054 static int DSp_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1055 { | |
| 1056 GWorldPtr temp; | |
| 1057 | |
| 1058 if ( DSp_NewHWSurface (this, &temp, surface->format->BitsPerPixel, surface->w, surface->h) < 0 ) | |
| 1059 return (-1); | |
| 1060 | |
| 1061 surface->hwdata = (private_hwdata*) malloc (sizeof (private_hwdata)); | |
| 1062 if (surface->hwdata == NULL) { | |
| 1063 SDL_OutOfMemory (); | |
| 1064 return -1; | |
| 1065 } | |
| 1066 | |
| 1067 memset (surface->hwdata, 0, sizeof(private_hwdata)); | |
| 1068 surface->hwdata->offscreen = temp; | |
| 1069 surface->pitch = GetPixRowBytes (GetPortPixMap (temp)) & 0x3FFF; | |
| 1070 surface->pixels = GetPixBaseAddr (GetPortPixMap (temp)); | |
| 1071 surface->flags |= SDL_HWSURFACE; | |
| 1072 #ifdef DSP_TRY_CC_AND_AA | |
| 1073 surface->flags |= SDL_HWACCEL; | |
| 1074 #endif | |
| 1075 return 0; | |
| 1076 } | |
| 1077 | |
| 1078 static void DSp_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1079 { | |
| 1080 if (surface->hwdata->offscreen != NULL) | |
| 1081 DisposeGWorld (surface->hwdata->offscreen); | |
| 1082 free (surface->hwdata); | |
| 1083 | |
| 1084 surface->pixels = NULL; | |
| 1085 } | |
| 1086 | |
| 1087 static int DSp_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dest) | |
| 1088 { | |
| 1089 int accelerated; | |
| 1090 | |
| 1091 /* Set initial acceleration on */ | |
| 1092 src->flags |= SDL_HWACCEL; | |
| 1093 | |
| 1094 /* Set the surface attributes */ | |
| 1095 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 1096 if ( ! this->info.blit_hw_A ) { | |
| 1097 src->flags &= ~SDL_HWACCEL; | |
| 1098 } | |
| 1099 } | |
| 1100 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 1101 if ( ! this->info.blit_hw_CC ) { | |
| 1102 src->flags &= ~SDL_HWACCEL; | |
| 1103 } | |
| 1104 } | |
| 1105 | |
| 1106 /* Check to see if final surface blit is accelerated */ | |
| 1107 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 1108 if ( accelerated ) { | |
| 1109 src->map->hw_blit = DSp_HWAccelBlit; | |
| 1110 } | |
| 1111 return(accelerated); | |
| 1112 } | |
| 1113 | |
| 1114 static int DSp_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 1115 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 1116 { | |
| 1117 CGrafPtr save_port; | |
| 1118 GDHandle save_device; | |
| 1119 Rect src_rect, dst_rect; | |
| 1120 RGBColor black = { 0, 0, 0 }; | |
| 1121 RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF }; | |
| 1122 | |
| 1123 #ifdef DSP_TRY_CC_AND_AA | |
| 1124 UInt32 mode; | |
| 1125 #endif | |
| 1126 | |
| 1127 SetRect (&src_rect, srcrect->x, srcrect->y, srcrect->x + srcrect->w, srcrect->y + srcrect->h); | |
| 1128 SetRect (&dst_rect, dstrect->x, dstrect->y, dstrect->x + dstrect->w, dstrect->y + dstrect->h); | |
| 1129 | |
| 1130 GetGWorld (&save_port, &save_device); | |
| 1131 SetGWorld (dst->hwdata->offscreen, NULL); | |
| 1132 | |
| 1133 RGBForeColor (&black); | |
| 1134 RGBBackColor (&white); | |
| 1135 | |
| 1136 #ifdef DSP_TRY_CC_AND_AA | |
| 1137 | |
| 1138 if ( (src->flags & SDL_SRCCOLORKEY) && | |
| 1139 (src->flags & SDL_SRCALPHA) ) { | |
| 1140 | |
| 1141 OpColor (&(src->hwdata->alpha)); | |
| 1142 | |
| 1143 CopyDeepMask ( GetPortBitMapForCopyBits(src->hwdata->offscreen), | |
| 1144 GetPortBitMapForCopyBits(src->hwdata->mask), | |
| 1145 GetPortBitMapForCopyBits(dst->hwdata->offscreen), | |
| 1146 &src_rect, &src_rect, &dst_rect, | |
| 1147 blend, | |
| 1148 NULL ); | |
| 1149 } | |
| 1150 else { | |
| 1151 | |
| 1152 if ( src->flags & SDL_SRCCOLORKEY) { | |
| 1153 RGBBackColor (&(src->hwdata->trans) ); | |
| 1154 mode = transparent; | |
| 1155 } | |
| 1156 else if (src->flags & SDL_SRCALPHA) { | |
| 1157 | |
| 1158 OpColor (&(src->hwdata->alpha)); | |
| 1159 mode = blend; | |
| 1160 } | |
| 1161 else { | |
| 1162 | |
| 1163 mode = srcCopy; | |
| 1164 } | |
| 1165 | |
| 1166 CopyBits ( GetPortBitMapForCopyBits(src->hwdata->offscreen), | |
| 1167 GetPortBitMapForCopyBits(dst->hwdata->offscreen), | |
| 1168 &src_rect, &dst_rect, mode, NULL ); | |
| 1169 } | |
| 1170 #else | |
| 1171 | |
| 1172 CopyBits ( &(((GrafPtr)(src->hwdata->offscreen))->portBits), | |
| 1173 &(((GrafPtr)(dst->hwdata->offscreen))->portBits), | |
| 1174 &src_rect, &dst_rect, srcCopy, NULL ); | |
| 1175 | |
| 1176 #endif /* DSP_TRY_CC_AND_AA */ | |
| 1177 | |
| 1178 SetGWorld (save_port, save_device); | |
| 1179 | |
| 1180 return(0); | |
| 1181 } | |
| 1182 | |
| 1183 static int DSp_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 1184 { | |
| 1185 CGrafPtr save_port; | |
| 1186 GDHandle save_device; | |
| 1187 Rect fill_rect; | |
| 1188 RGBColor rgb; | |
| 1189 | |
| 1190 SetRect (&fill_rect, rect->x, rect->y, rect->x + rect->w, rect->y + rect->h); | |
| 1191 | |
| 1192 GetGWorld (&save_port, &save_device); | |
| 1193 SetGWorld (dst->hwdata->offscreen, NULL); | |
| 1194 | |
| 1195 Index2Color (color, &rgb); | |
| 1196 | |
| 1197 RGBForeColor (&rgb); | |
| 1198 PaintRect (&fill_rect); | |
| 1199 | |
| 1200 SetGWorld (save_port, save_device); | |
| 1201 | |
| 1202 return(0); | |
| 1203 } | |
| 1204 | |
| 1205 static int DSp_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 1206 { | |
| 1207 if ( (surface->flags & SDL_HWSURFACE) ) { | |
| 1208 CGrafPtr dsp_front_buffer, save_port; | |
| 1209 Rect rect; | |
| 1210 | |
| 1211 unsigned int old_count; | |
| 1212 | |
| 1213 /* pseudo page flipping for VRAM back buffer*/ | |
| 1214 DSpContext_GetFrontBuffer (dsp_context, &dsp_front_buffer); | |
| 1215 SetRect (&rect, 0, 0, surface->w-1, surface->h-1); | |
| 1216 | |
| 1217 GetPort ((GrafPtr *)&save_port); | |
| 1218 SetPort ((GrafPtr)dsp_front_buffer); | |
| 1219 | |
| 1220 /* wait for retrace */ | |
| 1221 /* I have tried doing the swap in interrupt routine (VBL Proc) to do */ | |
| 1222 /* it asynchronously, but apparently CopyBits isn't interrupt safe */ | |
| 1223 | |
| 1224 #if ! TARGET_API_MAC_OSX | |
| 1225 #ifndef DSP_NO_SYNC_VBL | |
| 1226 old_count = retrace_count; | |
| 1227 while (old_count == retrace_count) | |
| 1228 ; | |
| 1229 #endif | |
| 1230 #endif | |
| 1231 | |
| 1232 CopyBits ( GetPortBitMapForCopyBits(dsp_back_buffer), | |
| 1233 GetPortBitMapForCopyBits(dsp_front_buffer), | |
| 1234 &rect, &rect, srcCopy, NULL ); | |
| 1235 | |
| 1236 SetPort ((GrafPtr)save_port); | |
| 1237 | |
| 1238 } else { | |
| 1239 /* not really page flipping at all: DSp just blits the dirty rectangles from DSp_UpdateRects */ | |
| 1240 Boolean busy_flag; | |
| 1241 DSpContext_SwapBuffers (dsp_context, NULL, &busy_flag); /* this waits for VBL */ | |
| 1242 DSpContext_GetBackBuffer (dsp_context, kDSpBufferKind_Normal, &dsp_back_buffer); | |
| 1243 surface->pixels = GetPixBaseAddr( GetPortPixMap(dsp_back_buffer) ); | |
| 1244 } | |
| 1245 return(0); | |
| 1246 } | |
| 1247 | |
| 1248 static int DSp_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1249 { | |
| 1250 if ( LockPixels (GetGWorldPixMap (surface->hwdata->offscreen)) ) | |
| 1251 return 0; | |
| 1252 else | |
| 1253 return -1; | |
| 1254 } | |
| 1255 | |
| 1256 static void DSp_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1257 { | |
| 1258 UnlockPixels (GetGWorldPixMap (surface->hwdata->offscreen)); | |
| 1259 } | |
| 1260 | |
| 1261 static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *sdl_rects) | |
| 1262 { | |
| 1263 return; | |
| 1264 } | |
| 1265 | |
| 1266 static void DSp_DSpUpdate(_THIS, int numrects, SDL_Rect *sdl_rects) | |
| 1267 { | |
| 1268 #if ! TARGET_API_MAC_OSX /* Unsupported DSp in here */ | |
| 1269 int i; | |
| 1270 Rect rect; | |
| 1271 | |
| 1272 for (i = 0; i < numrects; i++) { | |
| 1273 | |
| 1274 rect.top = sdl_rects[i].y; | |
| 1275 rect.left = sdl_rects[i].x; | |
| 1276 rect.bottom = sdl_rects[i].h + sdl_rects[i].y; | |
| 1277 rect.right = sdl_rects[i].w + sdl_rects[i].x; | |
| 1278 | |
| 1279 DSpContext_InvalBackBufferRect (dsp_context, &rect); | |
| 1280 } | |
| 1281 #endif | |
| 1282 } | |
| 1283 | |
| 1284 static int DSp_CreatePalette(_THIS) { | |
| 1285 | |
| 1286 | |
| 1287 /* Create our palette */ | |
| 1288 SDL_CTab = (CTabHandle)NewHandle(sizeof(ColorSpec)*256 + 8); | |
| 1289 if ( SDL_CTab == nil ) { | |
| 1290 SDL_OutOfMemory(); | |
| 1291 return(-1); | |
| 1292 } | |
| 1293 (**SDL_CTab).ctSeed = GetCTSeed(); | |
| 1294 (**SDL_CTab).ctFlags = 0; | |
| 1295 (**SDL_CTab).ctSize = 255; | |
| 1296 CTabChanged(SDL_CTab); | |
| 1297 SDL_CPal = NewPalette(256, SDL_CTab, pmExplicit+pmTolerant, 0); | |
| 1298 | |
| 1299 return 0; | |
| 1300 } | |
| 1301 | |
| 1302 static int DSp_DestroyPalette(_THIS) { | |
| 1303 | |
| 1304 /* Free palette and restore original one */ | |
| 1305 if ( SDL_CTab != nil ) { | |
| 1306 DisposeHandle((Handle)SDL_CTab); | |
| 1307 SDL_CTab = nil; | |
| 1308 } | |
| 1309 if ( SDL_CPal != nil ) { | |
| 1310 DisposePalette(SDL_CPal); | |
| 1311 SDL_CPal = nil; | |
| 1312 } | |
| 1313 RestoreDeviceClut(SDL_Display); | |
| 1314 | |
| 1315 return (0); | |
| 1316 } | |
| 1317 | |
| 1318 static int DSp_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1319 { | |
| 1320 CTabHandle cTab; | |
| 1321 | |
| 1322 int i; | |
| 1323 | |
| 1324 cTab = SDL_CTab; | |
| 1325 | |
| 1326 /* Verify the range of colors */ | |
| 1327 if ( (firstcolor+ncolors) > ((**cTab).ctSize+1) ) { | |
| 1328 return(0); | |
| 1329 } | |
| 1330 | |
| 1331 /* Set the screen palette and update the display */ | |
| 1332 for(i = 0; i < ncolors; i++) { | |
| 1333 int j = firstcolor + i; | |
| 1334 (**cTab).ctTable[j].value = j; | |
| 1335 (**cTab).ctTable[j].rgb.red = colors[i].r << 8 | colors[i].r; | |
| 1336 (**cTab).ctTable[j].rgb.green = colors[i].g << 8 | colors[i].g; | |
| 1337 (**cTab).ctTable[j].rgb.blue = colors[i].b << 8 | colors[i].b; | |
| 1338 } | |
| 1339 | |
| 1340 SetGDevice(SDL_Display); | |
| 1341 SetEntries(0, (**cTab).ctSize, (ColorSpec *)&(**cTab).ctTable); | |
| 1342 | |
| 1343 return(1); | |
| 1344 } | |
| 1345 | |
| 1346 void DSp_VideoQuit(_THIS) | |
| 1347 { | |
| 1348 int i; | |
| 1349 | |
| 1350 /* Free current video mode */ | |
| 1351 DSp_UnsetVideoMode(this, this->screen); | |
| 1352 | |
| 1353 /* Free Palette and restore original */ | |
| 1354 DSp_DestroyPalette (this); | |
| 1355 | |
| 1356 /* Free list of video modes */ | |
| 1357 if ( SDL_modelist != NULL ) { | |
| 1358 for ( i=0; SDL_modelist[i]; i++ ) { | |
| 1359 free(SDL_modelist[i]); | |
| 1360 } | |
| 1361 free(SDL_modelist); | |
| 1362 SDL_modelist = NULL; | |
| 1363 } | |
| 1364 | |
| 1365 /* Unload DrawSprocket */ | |
| 1366 DSpShutdown (); | |
| 1367 } | |
| 1368 | |
| 1369 #ifdef HAVE_OPENGL | |
| 1370 | |
| 1371 /* swap buffers with v-sync */ | |
| 1372 static void DSp_GL_SwapBuffers (_THIS) { | |
| 1373 | |
| 1374 #ifndef DSP_NO_SYNC_OPENGL | |
| 1375 | |
| 1376 unsigned int old_count; | |
| 1377 | |
| 1378 old_count = retrace_count; | |
| 1379 while (old_count == retrace_count) | |
| 1380 ; | |
| 1381 #endif | |
| 1382 | |
| 1383 aglSwapBuffers (glContext); | |
| 1384 } | |
| 1385 | |
| 1386 #endif |