| 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 | Written by Darrell Walisser <dwaliss1@purdue.edu> |
| 26 | |
| 27 | Implementation notes ---------------------------------------------------------------------- |
| 28 | |
| 29 | A bit on GWorlds in VRAM from technote 1182: |
| 30 | |
| 31 | There are two important things to note about GWorld's allocated in |
| 32 | VRAM. First, the base address retrieved through GetPixBaseAddr or |
| 33 | read directly from the PixMap structure can become invalid anytime |
| 34 | memory is allocated in VRAM. This can occur either by explicit |
| 35 | allocations, such as calls to NewGWorld, or by implicit ones, such as |
| 36 | those associated with the internal texture allocation of OpenGL. The |
| 37 | stored pixel images themselves will still be valid but may have been |
| 38 | moved in VRAM, thus rendering any stored base addresses invalid. |
| 39 | You should never store an image's base address for longer than is |
| 40 | necessary and especially never across calls to NewGWorld or |
| 41 | texture-creation routines. |
| 42 | |
| 43 | Secondly, an offscreen pixel image allocated in VRAM can be |
| 44 | purged at system task time by the display driver. This means any |
| 45 | time your application yields time such by calling WaitNextEvent or |
| 46 | SystemTask you can lose your VRAM GWorld contents. While this |
| 47 | happens infrequently, usually associated with display resolution or |
| 48 | pixel depth changes you must code for this eventuality. This purge |
| 49 | can occur whether or not the GWorld is locked or not. A return value |
| 50 | of false from LockPixels, a NULL return value from GetPixBaseAddr |
| 51 | or NULL in the baseAddr field of the PixMap mean that the pixel |
| 52 | image has been purged. To reallocate it you can either call |
| 53 | UpdateGWorld or Dispose your current GWorld through |
| 54 | DisposeGWorld and reallocate it via NewGWorld. Either way you must |
| 55 | then rebuild the pixel image. |
| 56 | |
| 57 | ------------------------------------------------------------------------------------ |
| 58 | |
| 59 | Currently, I don't account for (1). In my testing, NewGWorld never invalidated |
| 60 | other existing GWorlds in VRAM. However, I do have protection for (2). |
| 61 | Namely, I am using GetOSEvent() instead of WaitNextEvent() so that there are no |
| 62 | context switches (the app hogs the CPU). Eventually a book-keeping system should |
| 63 | be coded to take care of (1) and (2). |
| 64 | |
| 65 | ------------------------------------------------------------------------------------ |
| 66 | |
| 67 | System requirements (* denotes optional): |
| 68 | |
| 69 | 1. DrawSprocket 1.7.3 |
| 70 | 2. *MacOS 9 or later (but *not* Mac OS X) for hardware accelerated blit / fill |
| 71 | 3. *May also require certain graphics hardware for (2). I trust that all Apple OEM |
| 72 | hardware will work. Third party accelerators may work if they have QuickDraw |
| 73 | acceleration in the drivers and the drivers have been updated for OS 9. The current |
| 74 | Voodoo 3 drivers (1.0b12) do not work. |
| 75 | |
| 76 | Coding suggestions: |
| 77 | |
| 78 | 1. Use SDL_UpdateRects ! |
| 79 | |
| 80 | If no QuickDraw acceleration is present, double-buffered surfaces will use a back buffer |
| 81 | in System memory. I recommend you use SDL_UpdateRects with double-buffered surfaces |
| 82 | for best performance on these cards, since the overhead is nearly zero for VRAM back buffer. |
| 83 | |
| 84 | 2. Load most-resident surfaces first. |
| 85 | |
| 86 | If you fill up VRAM or AGP memory, there is no contingency for purging to make room for the next one. |
| 87 | Therefore, you should load the surfaces you plan to use the most frequently first. |
| 88 | Sooner or later, I will code LRU replacement to help this. |
| 89 | |
| 90 | TODO: |
| 91 | Some kind of posterized mode for resolutions < 640x480. |
| 92 | Window support / fullscreen toggle. |
| 93 | Figure out how much VRAM is available. Put in video->info->video_mem. |
| 94 | Track VRAM usage. |
| 95 | |
| 96 | BUGS: |
| 97 | I can't create a hardware surface the same size as the screen?! How to fix? |
| 98 | |
| 99 | |
| 100 | |
| 101 | COMPILE OPTIONS: |
| 102 | |
| 103 | DSP_TRY_CC_AND_AA - Define if you want to try HWA color-key and alpha blitters |
| 104 | HW color-key blitting gives substantial improvements, |
| 105 | but hw alpha is neck-and-neck with SDL's soft bitter. |
| 106 | |
| 107 | DSP_NO_SYNC_VBL - Define for HWA double-buffered surfaces: don't sync |
| 108 | pseudo-flip to monitor redraw. |
| 109 | |
| 110 | DSP_NO_SYNC_OPENGL - Define for OpenGL surfaces: don't sync buffer swap. Synching buffer |
| 111 | swap may result in reduced performance, but can eliminate some |
| 112 | tearing artifacts. |
| 113 | CHANGELOG: |
| 114 | 09/17/00 Lots of little tweaks. Build modelist in reverse order so largest contexts |
| 115 | list first. Compared various methods with ROM methods and fixed rez switch |
| 116 | crashing bug in GL Tron. (Woohoo!) |
| 117 | */ |
| 118 | |
| 119 | #define DSP_TRY_CC_AND_AA |
| 120 | |
| 121 | /* #define DSP_NO_SYNC_VBL */ |
| 122 | |
| 123 | #define DSP_NO_SYNC_OPENGL |
| 124 | |
| 125 | |
| 126 | #if defined(__APPLE__) && defined(__MACH__) |
| 127 | #include <Carbon/Carbon.h> |
| 128 | #include <DrawSprocket/DrawSprocket.h> |
| 129 | #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335) |
| 130 | #include <Carbon.h> |
| 131 | #include <DrawSprocket.h> |
| 132 | #else |
| 133 | #include <LowMem.h> |
| 134 | #include <Gestalt.h> |
| 135 | #include <Devices.h> |
| 136 | #include <DiskInit.h> |
| 137 | #include <QDOffscreen.h> |
| 138 | #include <DrawSprocket.h> |
| 139 | #endif |
| 140 | |
| 141 | #include "SDL_video.h" |
| 142 | #include "SDL_syswm.h" |
| 143 | #include "../SDL_sysvideo.h" |
| 144 | #include "../SDL_blit.h" |
| 145 | #include "../SDL_pixels_c.h" |
| 146 | #include "SDL_dspvideo.h" |
| 147 | #include "../maccommon/SDL_macgl_c.h" |
| 148 | #include "../maccommon/SDL_macwm_c.h" |
| 149 | #include "../maccommon/SDL_macmouse_c.h" |
| 150 | #include "../maccommon/SDL_macevents_c.h" |
| 151 | |
| 152 | /* Initialization/Query functions */ |
| 153 | static int DSp_VideoInit(_THIS, SDL_PixelFormat *vformat); |
| 154 | static SDL_Rect **DSp_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags); |
| 155 | static SDL_Surface *DSp_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags); |
| 156 | static int DSp_SetColors(_THIS, int firstcolor, int ncolors, |
| 157 | SDL_Color *colors); |
| 158 | static int DSp_CreatePalette(_THIS); |
| 159 | static int DSp_DestroyPalette(_THIS); |
| 160 | static void DSp_VideoQuit(_THIS); |
| 161 | |
| 162 | static int DSp_GetMainDevice (_THIS, GDHandle *device); |
| 163 | static void DSp_IsHWAvailable (_THIS, SDL_PixelFormat *vformat); |
| 164 | static void DSp_DSpUpdate(_THIS, int numrects, SDL_Rect *sdl_rects); |
| 165 | static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *sdl_rects); |
| 166 | |
| 167 | /* Hardware surface functions */ |
| 168 | static int DSp_SetHWAlpha(_THIS, SDL_Surface *surface, UInt8 alpha); |
| 169 | static int DSp_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key); |
| 170 | static int DSp_NewHWSurface(_THIS, CGrafPtr *port, int depth, int width, int height); |
| 171 | static int DSp_AllocHWSurface(_THIS, SDL_Surface *surface); |
| 172 | static int DSp_LockHWSurface(_THIS, SDL_Surface *surface); |
| 173 | static void DSp_UnlockHWSurface(_THIS, SDL_Surface *surface); |
| 174 | static void DSp_FreeHWSurface(_THIS, SDL_Surface *surface); |
| 175 | static int DSp_FlipHWSurface(_THIS, SDL_Surface *surface); |
| 176 | static int DSp_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dest); |
| 177 | static int DSp_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, |
| 178 | SDL_Surface *dst, SDL_Rect *dstrect); |
| 179 | static int DSp_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color); |
| 180 | |
| 181 | #if SDL_VIDEO_OPENGL |
| 182 | static void DSp_GL_SwapBuffers (_THIS); |
| 183 | #endif |
| 184 | |
| 185 | #if ! TARGET_API_MAC_CARBON |
| 186 | |
| 187 | #define GetPortPixRowBytes(x) ( (*(x->portPixMap))->rowBytes ) |
| 188 | #define GetGDevPixMap(x) ((**(x)).gdPMap) |
| 189 | #define GetPortPixMap(x) ((*(x)).portPixMap) |
| 190 | |
| 191 | #define GetPixDepth(y) ((**(y)).pixelSize) |
| 192 | //#define GetPixRowBytes(y) ((**(y)).rowBytes) |
| 193 | //#define GetPixBaseAddr(y) ((**(y)).baseAddr) |
| 194 | #define GetPixCTab(y) ((**(y)).pmTable) |
| 195 | #define GetPortBitMapForCopyBits(x) (&(((GrafPtr)(x))->portBits)) |
| 196 | |
| 197 | #else |
| 198 | #define GetPortPixRowBytes(x) (GetPixRowBytes(GetPortPixMap(x)) ) |
| 199 | #define GetGDevPixMap(x) ((**(x)).gdPMap) |
| 200 | |
| 201 | #endif |
| 202 | |
| 203 | typedef struct private_hwdata { |
| 204 | |
| 205 | GWorldPtr offscreen; // offscreen gworld in VRAM or AGP |
| 206 | |
| 207 | #ifdef DSP_TRY_CC_AND_AA |
| 208 | GWorldPtr mask; // transparent mask |
| 209 | RGBColor alpha; // alpha color |
| 210 | RGBColor trans; // transparent color |
| 211 | #endif |
| 212 | |
| 213 | } private_hwdata; |
| 214 | |
| 215 | typedef private_hwdata private_swdata ; /* have same fields */ |
| 216 | |
| 217 | /* Macintosh toolbox driver bootstrap functions */ |
| 218 | |
| 219 | static int DSp_Available(void) |
| 220 | { |
| 221 | /* Check for DrawSprocket */ |
| 222 | #if ! TARGET_API_MAC_OSX |
| 223 | /* This check is only meaningful if you weak-link DrawSprocketLib */ |
| 224 | return ((Ptr)DSpStartup != (Ptr)kUnresolvedCFragSymbolAddress); |
| 225 | #else |
| 226 | return 1; // DrawSprocket.framework doesn't have it all, but it's there |
| 227 | #endif |
| 228 | } |
| 229 | |
| 230 | static void DSp_DeleteDevice(SDL_VideoDevice *device) |
| 231 | { |
| 232 | /* -dw- taking no chances with null pointers */ |
| 233 | if (device) { |
| 234 | |
| 235 | if (device->hidden) { |
| 236 | |
| 237 | if (device->hidden->dspinfo) |
| 238 | SDL_free(device->hidden->dspinfo); |
| 239 | |
| 240 | SDL_free(device->hidden); |
| 241 | } |
| 242 | SDL_free(device); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | static SDL_VideoDevice *DSp_CreateDevice(int devindex) |
| 247 | { |
| 248 | SDL_VideoDevice *device; |
| 249 | |
| 250 | /* Initialize all variables that we clean on shutdown */ |
| 251 | device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 252 | if ( device ) { |
| 253 | SDL_memset(device, 0, sizeof (*device)); |
| 254 | device->hidden = (struct SDL_PrivateVideoData *) |
| 255 | SDL_malloc((sizeof *device->hidden)); |
| 256 | if (device->hidden) |
| 257 | SDL_memset(device->hidden, 0, sizeof ( *(device->hidden) ) ); |
| 258 | } |
| 259 | if ( (device == NULL) || (device->hidden == NULL) ) { |
| 260 | SDL_OutOfMemory(); |
| 261 | |
| 262 | if ( device ) { |
| 263 | |
| 264 | if (device->hidden) |
| 265 | SDL_free(device->hidden); |
| 266 | |
| 267 | SDL_free(device); |
| 268 | } |
| 269 | |
| 270 | return(NULL); |
| 271 | } |
| 272 | |
| 273 | /* Allocate DrawSprocket information */ |
| 274 | device->hidden->dspinfo = (struct DSpInfo *)SDL_malloc( |
| 275 | (sizeof *device->hidden->dspinfo)); |
| 276 | if ( device->hidden->dspinfo == NULL ) { |
| 277 | SDL_OutOfMemory(); |
| 278 | SDL_free(device->hidden); |
| 279 | SDL_free(device); |
| 280 | return(0); |
| 281 | } |
| 282 | SDL_memset(device->hidden->dspinfo, 0, (sizeof *device->hidden->dspinfo)); |
| 283 | |
| 284 | /* Set the function pointers */ |
| 285 | device->VideoInit = DSp_VideoInit; |
| 286 | device->ListModes = DSp_ListModes; |
| 287 | device->SetVideoMode = DSp_SetVideoMode; |
| 288 | device->SetColors = DSp_SetColors; |
| 289 | device->UpdateRects = NULL; |
| 290 | device->VideoQuit = DSp_VideoQuit; |
| 291 | device->AllocHWSurface = DSp_AllocHWSurface; |
| 292 | device->CheckHWBlit = NULL; |
| 293 | device->FillHWRect = NULL; |
| 294 | device->SetHWColorKey = NULL; |
| 295 | device->SetHWAlpha = NULL; |
| 296 | device->LockHWSurface = DSp_LockHWSurface; |
| 297 | device->UnlockHWSurface = DSp_UnlockHWSurface; |
| 298 | device->FlipHWSurface = DSp_FlipHWSurface; |
| 299 | device->FreeHWSurface = DSp_FreeHWSurface; |
| 300 | #if SDL_MACCLASSIC_GAMMA_SUPPORT |
| 301 | device->SetGammaRamp = Mac_SetGammaRamp; |
| 302 | device->GetGammaRamp = Mac_GetGammaRamp; |
| 303 | #endif |
| 304 | #if SDL_VIDEO_OPENGL |
| 305 | device->GL_MakeCurrent = Mac_GL_MakeCurrent; |
| 306 | device->GL_SwapBuffers = DSp_GL_SwapBuffers; |
| 307 | device->GL_LoadLibrary = Mac_GL_LoadLibrary; |
| 308 | device->GL_GetProcAddress = Mac_GL_GetProcAddress; |
| 309 | #endif |
| 310 | device->SetCaption = NULL; |
| 311 | device->SetIcon = NULL; |
| 312 | device->IconifyWindow = NULL; |
| 313 | device->GrabInput = NULL; |
| 314 | device->GetWMInfo = NULL; |
| 315 | device->FreeWMCursor = Mac_FreeWMCursor; |
| 316 | device->CreateWMCursor = Mac_CreateWMCursor; |
| 317 | device->ShowWMCursor = Mac_ShowWMCursor; |
| 318 | device->WarpWMCursor = Mac_WarpWMCursor; |
| 319 | device->InitOSKeymap = Mac_InitOSKeymap; |
| 320 | device->PumpEvents = Mac_PumpEvents; |
| 321 | |
| 322 | device->GrabInput = NULL; |
| 323 | device->CheckMouseMode = NULL; |
| 324 | |
| 325 | device->free = DSp_DeleteDevice; |
| 326 | |
| 327 | return device; |
| 328 | } |
| 329 | |
| 330 | VideoBootStrap DSp_bootstrap = { |
| 331 | "DSp", "MacOS DrawSprocket", |
| 332 | DSp_Available, DSp_CreateDevice |
| 333 | }; |
| 334 | |
| 335 | /* Use DSp/Display Manager to build mode list for given screen */ |
| 336 | static SDL_Rect** DSp_BuildModeList (const GDHandle gDevice, int *displayWidth, int *displayHeight) |
| 337 | { |
| 338 | DSpContextAttributes attributes; |
| 339 | DSpContextReference context; |
| 340 | DisplayIDType displayID; |
| 341 | SDL_Rect temp_list [16]; |
| 342 | SDL_Rect **mode_list; |
| 343 | int width, height, i, j; |
| 344 | |
| 345 | #if TARGET_API_MAC_OSX |
| 346 | |
| 347 | displayID = 0; |
| 348 | |
| 349 | #else |
| 350 | /* Ask Display Manager for integer id of screen device */ |
| 351 | if ( DMGetDisplayIDByGDevice (gDevice, &displayID, SDL_TRUE) != noErr ) { |
| 352 | return NULL; |
| 353 | } |
| 354 | #endif |
| 355 | /* Get the first possible DSp context on this device */ |
| 356 | if ( DSpGetFirstContext (displayID, &context) != noErr ) { |
| 357 | return NULL; |
| 358 | } |
| 359 | |
| 360 | if ( DSpContext_GetAttributes (context, &attributes) != noErr ) |
| 361 | return NULL; |
| 362 | |
| 363 | *displayWidth = attributes.displayWidth; |
| 364 | *displayHeight = attributes.displayHeight; |
| 365 | |
| 366 | for ( i = 0; i < SDL_arraysize(temp_list); i++ ) { |
| 367 | width = attributes.displayWidth; |
| 368 | height = attributes.displayHeight; |
| 369 | |
| 370 | temp_list [i].x = 0 | attributes.displayBestDepth; |
| 371 | temp_list [i].y = 0; |
| 372 | temp_list [i].w = width; |
| 373 | temp_list [i].h = height; |
| 374 | |
| 375 | /* DSp will report many different contexts with the same width and height. */ |
| 376 | /* They will differ in bit depth and refresh rate. */ |
| 377 | /* We will ignore them until we reach one with a different width/height */ |
| 378 | /* When there are no more contexts to look at, we will quit building the list*/ |
| 379 | while ( width == attributes.displayWidth && height == attributes.displayHeight ) { |
| 380 | |
| 381 | OSStatus err = DSpGetNextContext (context, &context); |
| 382 | if (err != noErr) |
| 383 | if (err == kDSpContextNotFoundErr) |
| 384 | goto done; |
| 385 | else |
| 386 | return NULL; |
| 387 | |
| 388 | if ( DSpContext_GetAttributes (context, &attributes) != noErr ) |
| 389 | return NULL; |
| 390 | |
| 391 | temp_list [i].x |= attributes.displayBestDepth; |
| 392 | } |
| 393 | } |
| 394 | done: |
| 395 | i++; /* i was not incremented before kicking out of the loop */ |
| 396 | |
| 397 | mode_list = (SDL_Rect**) SDL_malloc (sizeof (SDL_Rect*) * (i+1)); |
| 398 | if (mode_list) { |
| 399 | |
| 400 | /* -dw- new stuff: build in reverse order so largest sizes list first */ |
| 401 | for (j = i-1; j >= 0; j--) { |
| 402 | mode_list [j] = (SDL_Rect*) SDL_malloc (sizeof (SDL_Rect)); |
| 403 | if (mode_list [j]) |
| 404 | SDL_memcpy (mode_list [j], &(temp_list [j]), sizeof (SDL_Rect)); |
| 405 | else { |
| 406 | SDL_OutOfMemory (); |
| 407 | return NULL; |
| 408 | } |
| 409 | } |
| 410 | mode_list [i] = NULL; /* append null to the end */ |
| 411 | } |
| 412 | else { |
| 413 | SDL_OutOfMemory (); |
| 414 | return NULL; |
| 415 | } |
| 416 | |
| 417 | return mode_list; |
| 418 | } |
| 419 | |
| 420 | static void DSp_IsHWAvailable (_THIS, SDL_PixelFormat *vformat) |
| 421 | { |
| 422 | /* |
| 423 | VRAM GWorlds are only available on OS 9 or later. |
| 424 | Even with OS 9, some display drivers won't support it, |
| 425 | so we create a test GWorld and check for errors. |
| 426 | */ |
| 427 | |
| 428 | long versionSystem; |
| 429 | |
| 430 | dsp_vram_available = SDL_FALSE; |
| 431 | dsp_agp_available = SDL_FALSE; |
| 432 | |
| 433 | Gestalt ('sysv', &versionSystem); |
| 434 | if (0x00000860 < (versionSystem & 0x0000FFFF)) { |
| 435 | |
| 436 | GWorldPtr offscreen; |
| 437 | OSStatus err; |
| 438 | Rect bounds; |
| 439 | |
| 440 | SetRect (&bounds, 0, 0, 320, 240); |
| 441 | |
| 442 | #if useDistantHdwrMem && useLocalHdwrMem |
| 443 | err = NewGWorld (&offscreen, vformat->BitsPerPixel, &bounds, NULL, SDL_Display, useDistantHdwrMem | noNewDevice); |
| 444 | if (err == noErr) { |
| 445 | dsp_vram_available = SDL_TRUE; |
| 446 | DisposeGWorld (offscreen); |
| 447 | } |
| 448 | |
| 449 | err = NewGWorld (&offscreen, vformat->BitsPerPixel, &bounds, NULL, SDL_Display, useLocalHdwrMem | noNewDevice); |
| 450 | if (err == noErr) { |
| 451 | DisposeGWorld (offscreen); |
| 452 | dsp_agp_available = SDL_TRUE; |
| 453 | } |
| 454 | #endif |
| 455 | } |
| 456 | } |
| 457 | |
| 458 | static int DSp_GetMainDevice (_THIS, GDHandle *device) |
| 459 | { |
| 460 | |
| 461 | #if TARGET_API_MAC_OSX |
| 462 | /* DSpUserSelectContext not available on OS X */ |
| 463 | *device = GetMainDevice(); |
| 464 | return 0; |
| 465 | #else |
| 466 | |
| 467 | DSpContextAttributes attrib; |
| 468 | DSpContextReference context; |
| 469 | DisplayIDType display_id; |
| 470 | GDHandle main_device; |
| 471 | GDHandle device_list; |
| 472 | |
| 473 | device_list = GetDeviceList (); |
| 474 | main_device = GetMainDevice (); |
| 475 | |
| 476 | /* Quick check to avoid slower method when only one display exists */ |
| 477 | if ( (**device_list).gdNextGD == NULL ) { |
| 478 | *device = main_device; |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | SDL_memset (&attrib, 0, sizeof (DSpContextAttributes)); |
| 483 | |
| 484 | /* These attributes are hopefully supported on all devices...*/ |
| 485 | attrib.displayWidth = 640; |
| 486 | attrib.displayHeight = 480; |
| 487 | attrib.displayBestDepth = 8; |
| 488 | attrib.backBufferBestDepth = 8; |
| 489 | attrib.displayDepthMask = kDSpDepthMask_All; |
| 490 | attrib.backBufferDepthMask = kDSpDepthMask_All; |
| 491 | attrib.colorNeeds = kDSpColorNeeds_Require; |
| 492 | attrib.pageCount = 1; |
| 493 | |
| 494 | if (noErr != DMGetDisplayIDByGDevice (main_device, &display_id, SDL_FALSE)) { |
| 495 | SDL_SetError ("Display Manager couldn't associate GDevice with a Display ID"); |
| 496 | return (-1); |
| 497 | } |
| 498 | |
| 499 | /* Put up dialog on main display to select which display to use */ |
| 500 | if (noErr != DSpUserSelectContext (&attrib, display_id, NULL, &context)) { |
| 501 | SDL_SetError ("DrawSprocket couldn't create a context"); |
| 502 | return (-1); |
| 503 | } |
| 504 | |
| 505 | if (noErr != DSpContext_GetDisplayID (context, &display_id)) { |
| 506 | SDL_SetError ("DrawSprocket couldn't get display ID"); |
| 507 | return (-1); |
| 508 | } |
| 509 | |
| 510 | if (noErr != DMGetGDeviceByDisplayID (display_id, &main_device, SDL_FALSE)) { |
| 511 | SDL_SetError ("Display Manager couldn't associate Display ID with GDevice"); |
| 512 | return (-1); |
| 513 | } |
| 514 | |
| 515 | *device = main_device; |
| 516 | return (0); |
| 517 | #endif |
| 518 | } |
| 519 | |
| 520 | static int DSp_VideoInit(_THIS, SDL_PixelFormat *vformat) |
| 521 | { |
| 522 | NumVersion dsp_version = { 0x01, 0x00, 0x00, 0x00 }; |
| 523 | |
| 524 | #if UNIVERSAL_INTERFACES_VERSION > 0x0320 |
| 525 | dsp_version = DSpGetVersion (); |
| 526 | #endif |
| 527 | |
| 528 | if ( (dsp_version.majorRev == 1 && dsp_version.minorAndBugRev < 0x73) || |
| 529 | (dsp_version.majorRev < 1) ) { |
| 530 | |
| 531 | /* StandardAlert (kAlertStopAlert, "\pError!", |
| 532 | "\pI need DrawSprocket 1.7.3 or later!\n" |
| 533 | "You can find a newer version at http://www.apple.com/swupdates.", |
| 534 | NULL, NULL); |
| 535 | */ |
| 536 | SDL_SetError ("DrawSprocket version is too old. Need 1.7.3 or later."); |
| 537 | return (-1); |
| 538 | } |
| 539 | |
| 540 | if ( DSpStartup () != noErr ) { |
| 541 | SDL_SetError ("DrawSprocket couldn't startup"); |
| 542 | return(-1); |
| 543 | } |
| 544 | |
| 545 | /* Start DSpintosh events */ |
| 546 | Mac_InitEvents(this); |
| 547 | |
| 548 | /* Get a handle to the main monitor, or choose one on multiple monitor setups */ |
| 549 | if ( DSp_GetMainDevice(this, &SDL_Display) < 0) |
| 550 | return (-1); |
| 551 | |
| 552 | /* Determine pixel format */ |
| 553 | vformat->BitsPerPixel = GetPixDepth ( (**SDL_Display).gdPMap ); |
| 554 | dsp_old_depth = vformat->BitsPerPixel; |
| 555 | |
| 556 | switch (vformat->BitsPerPixel) { |
| 557 | case 16: |
| 558 | vformat->Rmask = 0x00007c00; |
| 559 | vformat->Gmask = 0x000003e0; |
| 560 | vformat->Bmask = 0x0000001f; |
| 561 | break; |
| 562 | default: |
| 563 | break; |
| 564 | } |
| 565 | |
| 566 | if ( DSp_CreatePalette (this) < 0 ) { |
| 567 | SDL_SetError ("Could not create palette"); |
| 568 | return (-1); |
| 569 | } |
| 570 | |
| 571 | /* Get a list of available fullscreen modes */ |
| 572 | SDL_modelist = DSp_BuildModeList (SDL_Display, |
| 573 | &this->info.current_w, &this->info.current_h); |
| 574 | if (SDL_modelist == NULL) { |
| 575 | SDL_SetError ("DrawSprocket could not build a mode list"); |
| 576 | return (-1); |
| 577 | } |
| 578 | |
| 579 | /* Check for VRAM and AGP GWorlds for HW Blitting */ |
| 580 | DSp_IsHWAvailable (this, vformat); |
| 581 | |
| 582 | this->info.wm_available = 0; |
| 583 | |
| 584 | if (dsp_vram_available || dsp_agp_available) { |
| 585 | |
| 586 | this->info.hw_available = SDL_TRUE; |
| 587 | |
| 588 | this->CheckHWBlit = DSp_CheckHWBlit; |
| 589 | this->info.blit_hw = SDL_TRUE; |
| 590 | |
| 591 | this->FillHWRect = DSp_FillHWRect; |
| 592 | this->info.blit_fill = SDL_TRUE; |
| 593 | |
| 594 | #ifdef DSP_TRY_CC_AND_AA |
| 595 | this->SetHWColorKey = DSp_SetHWColorKey; |
| 596 | this->info.blit_hw_CC = SDL_TRUE; |
| 597 | |
| 598 | this->SetHWAlpha = DSp_SetHWAlpha; |
| 599 | this->info.blit_hw_A = SDL_TRUE; |
| 600 | #endif |
| 601 | |
| 602 | } |
| 603 | |
| 604 | return(0); |
| 605 | } |
| 606 | |
| 607 | static SDL_Rect **DSp_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) |
| 608 | { |
| 609 | static SDL_Rect *dsp_modes[16]; |
| 610 | int i = 0, j = 0; |
| 611 | |
| 612 | if ( format->BitsPerPixel == 0 ) |
| 613 | return ( (SDL_Rect**) NULL ); |
| 614 | |
| 615 | while (SDL_modelist[i] != NULL) { |
| 616 | |
| 617 | if (SDL_modelist[i]->x & format->BitsPerPixel) { |
| 618 | dsp_modes[j] = SDL_modelist[i]; |
| 619 | j++; |
| 620 | } |
| 621 | i++; |
| 622 | } |
| 623 | |
| 624 | dsp_modes[j] = NULL; |
| 625 | |
| 626 | return dsp_modes; |
| 627 | } |
| 628 | |
| 629 | /* Various screen update functions available */ |
| 630 | static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); |
| 631 | |
| 632 | #if ! TARGET_API_MAC_OSX |
| 633 | |
| 634 | static volatile unsigned int retrace_count = 0; /* -dw- need volatile because it updates asychronously */ |
| 635 | |
| 636 | Boolean DSp_VBLProc ( DSpContextReference context, void *ref_con ) |
| 637 | { |
| 638 | retrace_count++; |
| 639 | |
| 640 | return 1; /* Darrell, is this right? */ |
| 641 | } |
| 642 | |
| 643 | static void DSp_SetHWError (OSStatus err, int is_agp) |
| 644 | { |
| 645 | char message[1024]; |
| 646 | const char *fmt, *mem; |
| 647 | |
| 648 | if ( is_agp ) { |
| 649 | mem = "AGP Memory"; |
| 650 | } else { |
| 651 | mem = "VRAM"; |
| 652 | } |
| 653 | switch(err) { |
| 654 | case memFullErr: |
| 655 | fmt = "Hardware surface possible but not enough %s available"; |
| 656 | break; |
| 657 | case cDepthErr: |
| 658 | fmt = "Hardware surface possible but invalid color depth"; |
| 659 | break; |
| 660 | default: |
| 661 | fmt = "Hardware surface could not be allocated in %s - unknown error"; |
| 662 | break; |
| 663 | } |
| 664 | SDL_snprintf(message, SDL_arraysize(message), fmt, mem); |
| 665 | SDL_SetError(message); |
| 666 | } |
| 667 | #endif // TARGET_API_MAC_OSX |
| 668 | |
| 669 | /* put up a dialog to verify display change */ |
| 670 | static int DSp_ConfirmSwitch () { |
| 671 | |
| 672 | /* resource id's for dialog */ |
| 673 | const int rDialog = 1002; |
| 674 | const int bCancel = 1; |
| 675 | const int bOK = 2; |
| 676 | |
| 677 | DialogPtr dialog; |
| 678 | OSStatus err; |
| 679 | SInt32 response; |
| 680 | DialogItemIndex item = 0; |
| 681 | GrafPtr savePort; |
| 682 | |
| 683 | GetPort (&savePort); |
| 684 | |
| 685 | dialog = GetNewDialog (rDialog, NULL, (WindowPtr) -1); |
| 686 | if (dialog == NULL) |
| 687 | return (0); |
| 688 | |
| 689 | #if TARGET_API_MAC_CARBON |
| 690 | SetPort (GetDialogPort(dialog)); |
| 691 | #else |
| 692 | SetPort ((WindowPtr) dialog); |
| 693 | #endif |
| 694 | |
| 695 | SetDialogDefaultItem (dialog, bCancel); |
| 696 | SetDialogCancelItem (dialog, bCancel); |
| 697 | |
| 698 | SetEventMask (everyEvent); |
| 699 | FlushEvents (everyEvent, 0); |
| 700 | |
| 701 | /* On MacOS 8.5 or later, we can make the dialog go away after 15 seconds */ |
| 702 | /* This is good since it's possible user can't even see the dialog! */ |
| 703 | /* Requires linking to DialogsLib */ |
| 704 | err = Gestalt(gestaltSystemVersion,&response); |
| 705 | if (err == noErr && response >= 0x00000850) { |
| 706 | SetDialogTimeout(dialog, bCancel, 15); |
| 707 | } |
| 708 | |
| 709 | do { |
| 710 | |
| 711 | ModalDialog ( NULL, &item ); |
| 712 | |
| 713 | } while ( item != bCancel && item != bOK && err != noErr); |
| 714 | |
| 715 | |
| 716 | DisposeDialog (dialog); |
| 717 | SetPort (savePort); |
| 718 | |
| 719 | SetEventMask(everyEvent - autoKeyMask); |
| 720 | FlushEvents(everyEvent, 0); |
| 721 | |
| 722 | return (item - 1); |
| 723 | } |
| 724 | |
| 725 | static void DSp_UnsetVideoMode(_THIS, SDL_Surface *current) |
| 726 | { |
| 727 | |
| 728 | |
| 729 | if ( current->flags & SDL_OPENGL ) { |
| 730 | Mac_GL_Quit (this); |
| 731 | } |
| 732 | |
| 733 | if (dsp_context != NULL) { |
| 734 | |
| 735 | GWorldPtr front; |
| 736 | DSpContext_GetFrontBuffer (dsp_context, &front); |
| 737 | |
| 738 | if (front != dsp_back_buffer) |
| 739 | DisposeGWorld (dsp_back_buffer); |
| 740 | |
| 741 | if (current->hwdata) |
| 742 | SDL_free(current->hwdata); |
| 743 | |
| 744 | DSpContext_SetState (dsp_context, kDSpContextState_Inactive ); |
| 745 | DSpContext_Release (dsp_context); |
| 746 | |
| 747 | dsp_context = NULL; |
| 748 | } |
| 749 | |
| 750 | if (SDL_Window != NULL) { |
| 751 | DisposeWindow (SDL_Window); |
| 752 | SDL_Window = NULL; |
| 753 | } |
| 754 | |
| 755 | current->pixels = NULL; |
| 756 | current->flags = 0; |
| 757 | } |
| 758 | |
| 759 | static SDL_Surface *DSp_SetVideoMode(_THIS, |
| 760 | SDL_Surface *current, int width, int height, int bpp, Uint32 flags) |
| 761 | { |
| 762 | |
| 763 | #if !TARGET_API_MAC_OSX |
| 764 | DisplayIDType display_id; |
| 765 | Fixed freq; |
| 766 | #endif |
| 767 | DSpContextAttributes attrib; |
| 768 | OSStatus err; |
| 769 | UInt32 rmask = 0, gmask = 0, bmask = 0; |
| 770 | |
| 771 | int page_count; |
| 772 | int double_buf; |
| 773 | int hw_surface; |
| 774 | int use_dsp_back_buffer; |
| 775 | |
| 776 | DSp_UnsetVideoMode (this, current); |
| 777 | |
| 778 | if (bpp != dsp_old_depth) |
| 779 | DSp_DestroyPalette (this); |
| 780 | |
| 781 | double_buf = (flags & SDL_DOUBLEBUF) != 0; |
| 782 | hw_surface = (flags & SDL_HWSURFACE) != 0; |
| 783 | use_dsp_back_buffer = !dsp_vram_available || !hw_surface ; |
| 784 | |
| 785 | current->flags |= SDL_FULLSCREEN; |
| 786 | |
| 787 | rebuild: |
| 788 | |
| 789 | if ( double_buf && use_dsp_back_buffer ) { |
| 790 | page_count = 2; |
| 791 | } else { |
| 792 | page_count = 1; |
| 793 | } |
| 794 | |
| 795 | SDL_memset (&attrib, 0, sizeof (DSpContextAttributes)); |
| 796 | attrib.displayWidth = width; |
| 797 | attrib.displayHeight = height; |
| 798 | attrib.displayBestDepth = bpp; |
| 799 | attrib.backBufferBestDepth = bpp; |
| 800 | attrib.displayDepthMask = kDSpDepthMask_All; |
| 801 | attrib.backBufferDepthMask = kDSpDepthMask_All; |
| 802 | attrib.colorNeeds = kDSpColorNeeds_Require; |
| 803 | attrib.colorTable = 0; |
| 804 | attrib.pageCount = page_count; |
| 805 | #if TARGET_API_MAC_OSX || UNIVERSAL_INTERFACES_VERSION == 0x0320 |
| 806 | |
| 807 | if ( DSpFindBestContext (&attrib, &dsp_context) != noErr ) { |
| 808 | SDL_SetError ("DrawSprocket couldn't find a context"); |
| 809 | return NULL; |
| 810 | } |
| 811 | |
| 812 | #else |
| 813 | if ( noErr != DMGetDisplayIDByGDevice (SDL_Display, &display_id, SDL_FALSE) ) { |
| 814 | SDL_SetError ("Display Manager couldn't associate GDevice with display_id"); |
| 815 | return NULL; |
| 816 | } |
| 817 | if ( DSpFindBestContextOnDisplayID(&attrib, &dsp_context, display_id) != noErr ) { |
| 818 | SDL_SetError ("DrawSprocket couldn't find a suitable context on given display"); |
| 819 | return NULL; |
| 820 | } |
| 821 | |
| 822 | #endif |
| 823 | if ( DSpContext_Reserve (dsp_context, &attrib) != noErr ) { |
| 824 | SDL_SetError ("DrawSprocket couldn't get the needed resources to build the display"); |
| 825 | return NULL; |
| 826 | } |
| 827 | |
| 828 | if ( (err = DSpContext_SetState (dsp_context, kDSpContextState_Active)) != noErr ) { |
| 829 | |
| 830 | if (err == kDSpConfirmSwitchWarning) { |
| 831 | |
| 832 | if ( ! DSp_ConfirmSwitch () ) { |
| 833 | |
| 834 | DSpContext_Release (dsp_context); |
| 835 | dsp_context = NULL; |
| 836 | SDL_SetError ("User cancelled display switch"); |
| 837 | return NULL; |
| 838 | } |
| 839 | else |
| 840 | /* Have to reactivate context. Why? */ |
| 841 | DSpContext_SetState (dsp_context, kDSpContextState_Active); |
| 842 | |
| 843 | } |
| 844 | else { |
| 845 | SDL_SetError ("DrawSprocket couldn't activate the context"); |
| 846 | return NULL; |
| 847 | } |
| 848 | } |
| 849 | |
| 850 | |
| 851 | if (bpp != dsp_old_depth) { |
| 852 | |
| 853 | DSp_CreatePalette (this); |
| 854 | |
| 855 | /* update format if display depth changed */ |
| 856 | if (bpp == 16) { |
| 857 | |
| 858 | rmask = 0x00007c00; |
| 859 | gmask = 0x000003e0; |
| 860 | bmask = 0x0000001f; |
| 861 | } |
| 862 | if ( ! SDL_ReallocFormat (current, bpp, rmask, gmask, bmask, 0 ) ) { |
| 863 | |
| 864 | SDL_SetError ("Could not reallocate video format."); |
| 865 | return(NULL); |
| 866 | } |
| 867 | } |
| 868 | |
| 869 | if (!double_buf) { |
| 870 | |
| 871 | /* single-buffer context */ |
| 872 | DSpContext_GetFrontBuffer (dsp_context, &dsp_back_buffer); |
| 873 | |
| 874 | current->hwdata = (private_hwdata*) SDL_malloc (sizeof (private_hwdata)); |
| 875 | if (current ->hwdata == NULL) { |
| 876 | SDL_OutOfMemory (); |
| 877 | return NULL; |
| 878 | } |
| 879 | current->hwdata->offscreen = dsp_back_buffer; |
| 880 | current->flags |= SDL_HWSURFACE; |
| 881 | this->UpdateRects = DSp_DirectUpdate; |
| 882 | } |
| 883 | else if ( use_dsp_back_buffer ) { |
| 884 | |
| 885 | DSpContext_GetBackBuffer (dsp_context, kDSpBufferKind_Normal, &dsp_back_buffer); |
| 886 | |
| 887 | current->flags |= SDL_DOUBLEBUF | SDL_SWSURFACE; /* only front buffer is in VRAM */ |
| 888 | this->UpdateRects = DSp_DSpUpdate; |
| 889 | } |
| 890 | else if ( DSp_NewHWSurface(this, &dsp_back_buffer, bpp, width-1, height-1) == 0 ) { |
| 891 | |
| 892 | current->hwdata = (private_hwdata*) SDL_malloc (sizeof (private_hwdata)); |
| 893 | if (current ->hwdata == NULL) { |
| 894 | SDL_OutOfMemory (); |
| 895 | return NULL; |
| 896 | } |
| 897 | |
| 898 | SDL_memset (current->hwdata, 0, sizeof (private_hwdata)); |
| 899 | current->hwdata->offscreen = dsp_back_buffer; |
| 900 | current->flags |= SDL_DOUBLEBUF | SDL_HWSURFACE; |
| 901 | this->UpdateRects = DSp_DirectUpdate; /* hardware doesn't do update rects, must be page-flipped */ |
| 902 | } |
| 903 | else { |
| 904 | |
| 905 | DSpContext_Release (dsp_context); |
| 906 | use_dsp_back_buffer = SDL_TRUE; |
| 907 | goto rebuild; |
| 908 | } |
| 909 | |
| 910 | current->pitch = GetPortPixRowBytes(dsp_back_buffer) & 0x3FFF; |
| 911 | current->pixels = GetPixBaseAddr(GetPortPixMap(dsp_back_buffer)); |
| 912 | |
| 913 | current->w = width; |
| 914 | current->h = height; |
| 915 | |
| 916 | #if ! TARGET_API_MAC_OSX |
| 917 | |
| 918 | if (use_dsp_back_buffer) { |
| 919 | |
| 920 | DSpContext_GetMonitorFrequency (dsp_context, &freq); |
| 921 | DSpContext_SetMaxFrameRate (dsp_context, freq >> 16); |
| 922 | } |
| 923 | |
| 924 | |
| 925 | if ( (current->flags & SDL_HWSURFACE) || (current->flags & SDL_OPENGL) ) |
| 926 | DSpContext_SetVBLProc (dsp_context, DSp_VBLProc, NULL); |
| 927 | #endif |
| 928 | |
| 929 | if (bpp == 8) |
| 930 | current->flags |= SDL_HWPALETTE; |
| 931 | |
| 932 | if (flags & SDL_OPENGL) { |
| 933 | |
| 934 | Rect rect; |
| 935 | RGBColor rgb = { 0.0, 0.0, 0.0 }; |
| 936 | GrafPtr save_port; |
| 937 | |
| 938 | SetRect (&rect, 0, 0, width, height); |
| 939 | SDL_Window = NewCWindow(nil, &( (**SDL_Display).gdRect), "\p", SDL_TRUE, plainDBox, (WindowPtr)-1, SDL_FALSE, 0); |
| 940 | |
| 941 | if (SDL_Window == NULL) { |
| 942 | |
| 943 | SDL_SetError ("DSp_SetVideoMode : OpenGL window could not be created."); |
| 944 | return NULL; |
| 945 | } |
| 946 | |
| 947 | /* Set window color to black to avoid white flash*/ |
| 948 | GetPort (&save_port); |
| 949 | #if TARGET_API_MAC_CARBON |
| 950 | SetPort (GetWindowPort(SDL_Window)); |
| 951 | #else |
| 952 | SetPort (SDL_Window); |
| 953 | #endif |
| 954 | RGBForeColor (&rgb); |
| 955 | PaintRect (&rect); |
| 956 | SetPort (save_port); |
| 957 | |
| 958 | SetPortWindowPort (SDL_Window); |
| 959 | SelectWindow (SDL_Window); |
| 960 | |
| 961 | if ( Mac_GL_Init (this) < 0 ) { |
| 962 | |
| 963 | SDL_SetError ("DSp_SetVideoMode : could not create OpenGL context."); |
| 964 | return NULL; |
| 965 | } |
| 966 | |
| 967 | current->flags |= SDL_OPENGL; |
| 968 | } |
| 969 | |
| 970 | return current; |
| 971 | } |
| 972 | |
| 973 | #ifdef DSP_TRY_CC_AND_AA |
| 974 | |
| 975 | static int DSp_MakeHWMask (_THIS, SDL_Surface *surface) |
| 976 | { |
| 977 | GDHandle save_device; |
| 978 | CGrafPtr save_port; |
| 979 | GWorldPtr temp; |
| 980 | RGBColor black = { 0, 0, 0 }; |
| 981 | RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF }; |
| 982 | Rect rect; |
| 983 | |
| 984 | Uint32 depth = GetPixDepth ( GetGDevPixMap (SDL_Display) ); |
| 985 | |
| 986 | SetRect (&rect, 0, 0, surface->w, surface->h); |
| 987 | |
| 988 | if ( noErr != NewGWorld (&(surface->hwdata->mask), depth, &rect, 0, SDL_Display, 0 ) < 0 ) { |
| 989 | |
| 990 | SDL_OutOfMemory (); |
| 991 | return (-1); |
| 992 | } |
| 993 | |
| 994 | if ( noErr != NewGWorld (&temp, depth, &rect, 0 , SDL_Display, 0 ) ) { |
| 995 | |
| 996 | SDL_OutOfMemory (); |
| 997 | return (-1); |
| 998 | } |
| 999 | |
| 1000 | |
| 1001 | GetGWorld (&save_port, &save_device); |
| 1002 | SetGWorld (surface->hwdata->mask, SDL_Display); |
| 1003 | |
| 1004 | RGBForeColor (&white); |
| 1005 | PaintRect (&rect); |
| 1006 | |
| 1007 | RGBBackColor (&(surface->hwdata->trans)); |
| 1008 | |
| 1009 | CopyBits ( GetPortBitMapForCopyBits(surface->hwdata->offscreen), |
| 1010 | GetPortBitMapForCopyBits(surface->hwdata->mask), |
| 1011 | &rect, &rect, transparent, NULL ); |
| 1012 | |
| 1013 | SetGWorld (surface->hwdata->mask, SDL_Display); |
| 1014 | SetGWorld (save_port, save_device); |
| 1015 | return (0); |
| 1016 | } |
| 1017 | |
| 1018 | static int DSp_SetHWAlpha(_THIS, SDL_Surface *surface, UInt8 alpha) |
| 1019 | { |
| 1020 | surface->hwdata->alpha.red = (alpha / 255.0) * 65535; |
| 1021 | surface->hwdata->alpha.blue = (alpha / 255.0) * 65535; |
| 1022 | surface->hwdata->alpha.green = (alpha / 255.0) * 65535; |
| 1023 | |
| 1024 | surface->flags |= SDL_SRCALPHA; |
| 1025 | |
| 1026 | if (surface->flags & SDL_SRCCOLORKEY) { |
| 1027 | return(DSp_MakeHWMask (this, surface)); |
| 1028 | } |
| 1029 | return(0); |
| 1030 | } |
| 1031 | |
| 1032 | static int DSp_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) |
| 1033 | { |
| 1034 | CGrafPtr save_port; |
| 1035 | GDHandle save_device; |
| 1036 | |
| 1037 | GetGWorld (&save_port, &save_device); |
| 1038 | SetGWorld (surface->hwdata->offscreen, NULL); |
| 1039 | |
| 1040 | Index2Color (key, &(surface->hwdata->trans)); |
| 1041 | surface->flags |= SDL_SRCCOLORKEY; |
| 1042 | |
| 1043 | SetGWorld (save_port, save_device); |
| 1044 | |
| 1045 | if ( surface->flags & SDL_SRCALPHA ) { |
| 1046 | return(DSp_MakeHWMask (this, surface)); |
| 1047 | } |
| 1048 | return(0); |
| 1049 | } |
| 1050 | |
| 1051 | #endif /* DSP_TRY_CC_AND_AA */ |
| 1052 | |
| 1053 | static int DSp_NewHWSurface(_THIS, CGrafPtr *port, int depth, int width, int height) { |
| 1054 | |
| 1055 | OSStatus err; |
| 1056 | Rect bounds; |
| 1057 | |
| 1058 | SetRect (&bounds, 0, 0, width, height); |
| 1059 | |
| 1060 | #if useDistantHdwrMem && useLocalHdwrMem |
| 1061 | if (dsp_vram_available) { |
| 1062 | /* try VRAM */ |
| 1063 | err = NewGWorld (port, depth, &bounds, 0 , SDL_Display, useDistantHdwrMem | noNewDevice ); |
| 1064 | if (err != noErr) |
| 1065 | DSp_SetHWError (err, SDL_FALSE); |
| 1066 | else |
| 1067 | return (0); |
| 1068 | } |
| 1069 | |
| 1070 | if (dsp_agp_available) { |
| 1071 | /* try AGP */ |
| 1072 | err = NewGWorld (port, depth, &bounds, 0 , SDL_Display, useLocalHdwrMem | noNewDevice ); |
| 1073 | |
| 1074 | if (err != noErr) |
| 1075 | DSp_SetHWError (err, SDL_TRUE); |
| 1076 | else |
| 1077 | return (0); |
| 1078 | } |
| 1079 | #endif |
| 1080 | |
| 1081 | return (-1); |
| 1082 | } |
| 1083 | |
| 1084 | static int DSp_AllocHWSurface(_THIS, SDL_Surface *surface) |
| 1085 | { |
| 1086 | GWorldPtr temp; |
| 1087 | |
| 1088 | if ( DSp_NewHWSurface (this, &temp, surface->format->BitsPerPixel, surface->w, surface->h) < 0 ) |
| 1089 | return (-1); |
| 1090 | |
| 1091 | surface->hwdata = (private_hwdata*) SDL_malloc (sizeof (private_hwdata)); |
| 1092 | if (surface->hwdata == NULL) { |
| 1093 | SDL_OutOfMemory (); |
| 1094 | return -1; |
| 1095 | } |
| 1096 | |
| 1097 | SDL_memset (surface->hwdata, 0, sizeof(private_hwdata)); |
| 1098 | surface->hwdata->offscreen = temp; |
| 1099 | surface->pitch = GetPixRowBytes (GetPortPixMap (temp)) & 0x3FFF; |
| 1100 | surface->pixels = GetPixBaseAddr (GetPortPixMap (temp)); |
| 1101 | surface->flags |= SDL_HWSURFACE; |
| 1102 | #ifdef DSP_TRY_CC_AND_AA |
| 1103 | surface->flags |= SDL_HWACCEL; |
| 1104 | #endif |
| 1105 | return 0; |
| 1106 | } |
| 1107 | |
| 1108 | static void DSp_FreeHWSurface(_THIS, SDL_Surface *surface) |
| 1109 | { |
| 1110 | if (surface->hwdata->offscreen != NULL) |
| 1111 | DisposeGWorld (surface->hwdata->offscreen); |
| 1112 | SDL_free(surface->hwdata); |
| 1113 | |
| 1114 | surface->pixels = NULL; |
| 1115 | } |
| 1116 | |
| 1117 | static int DSp_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dest) |
| 1118 | { |
| 1119 | int accelerated; |
| 1120 | |
| 1121 | /* Set initial acceleration on */ |
| 1122 | src->flags |= SDL_HWACCEL; |
| 1123 | |
| 1124 | /* Set the surface attributes */ |
| 1125 | if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { |
| 1126 | if ( ! this->info.blit_hw_A ) { |
| 1127 | src->flags &= ~SDL_HWACCEL; |
| 1128 | } |
| 1129 | } |
| 1130 | if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { |
| 1131 | if ( ! this->info.blit_hw_CC ) { |
| 1132 | src->flags &= ~SDL_HWACCEL; |
| 1133 | } |
| 1134 | } |
| 1135 | |
| 1136 | /* Check to see if final surface blit is accelerated */ |
| 1137 | accelerated = !!(src->flags & SDL_HWACCEL); |
| 1138 | if ( accelerated ) { |
| 1139 | src->map->hw_blit = DSp_HWAccelBlit; |
| 1140 | } |
| 1141 | return(accelerated); |
| 1142 | } |
| 1143 | |
| 1144 | static int DSp_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, |
| 1145 | SDL_Surface *dst, SDL_Rect *dstrect) |
| 1146 | { |
| 1147 | CGrafPtr save_port; |
| 1148 | GDHandle save_device; |
| 1149 | Rect src_rect, dst_rect; |
| 1150 | RGBColor black = { 0, 0, 0 }; |
| 1151 | RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF }; |
| 1152 | |
| 1153 | #ifdef DSP_TRY_CC_AND_AA |
| 1154 | UInt32 mode; |
| 1155 | #endif |
| 1156 | |
| 1157 | SetRect (&src_rect, srcrect->x, srcrect->y, srcrect->x + srcrect->w, srcrect->y + srcrect->h); |
| 1158 | SetRect (&dst_rect, dstrect->x, dstrect->y, dstrect->x + dstrect->w, dstrect->y + dstrect->h); |
| 1159 | |
| 1160 | GetGWorld (&save_port, &save_device); |
| 1161 | SetGWorld (dst->hwdata->offscreen, NULL); |
| 1162 | |
| 1163 | RGBForeColor (&black); |
| 1164 | RGBBackColor (&white); |
| 1165 | |
| 1166 | #ifdef DSP_TRY_CC_AND_AA |
| 1167 | |
| 1168 | if ( (src->flags & SDL_SRCCOLORKEY) && |
| 1169 | (src->flags & SDL_SRCALPHA) ) { |
| 1170 | |
| 1171 | OpColor (&(src->hwdata->alpha)); |
| 1172 | |
| 1173 | CopyDeepMask ( GetPortBitMapForCopyBits(src->hwdata->offscreen), |
| 1174 | GetPortBitMapForCopyBits(src->hwdata->mask), |
| 1175 | GetPortBitMapForCopyBits(dst->hwdata->offscreen), |
| 1176 | &src_rect, &src_rect, &dst_rect, |
| 1177 | blend, |
| 1178 | NULL ); |
| 1179 | } |
| 1180 | else { |
| 1181 | |
| 1182 | if ( src->flags & SDL_SRCCOLORKEY) { |
| 1183 | RGBBackColor (&(src->hwdata->trans) ); |
| 1184 | mode = transparent; |
| 1185 | } |
| 1186 | else if (src->flags & SDL_SRCALPHA) { |
| 1187 | |
| 1188 | OpColor (&(src->hwdata->alpha)); |
| 1189 | mode = blend; |
| 1190 | } |
| 1191 | else { |
| 1192 | |
| 1193 | mode = srcCopy; |
| 1194 | } |
| 1195 | |
| 1196 | CopyBits ( GetPortBitMapForCopyBits(src->hwdata->offscreen), |
| 1197 | GetPortBitMapForCopyBits(dst->hwdata->offscreen), |
| 1198 | &src_rect, &dst_rect, mode, NULL ); |
| 1199 | } |
| 1200 | #else |
| 1201 | |
| 1202 | CopyBits ( &(((GrafPtr)(src->hwdata->offscreen))->portBits), |
| 1203 | &(((GrafPtr)(dst->hwdata->offscreen))->portBits), |
| 1204 | &src_rect, &dst_rect, srcCopy, NULL ); |
| 1205 | |
| 1206 | #endif /* DSP_TRY_CC_AND_AA */ |
| 1207 | |
| 1208 | SetGWorld (save_port, save_device); |
| 1209 | |
| 1210 | return(0); |
| 1211 | } |
| 1212 | |
| 1213 | static int DSp_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) |
| 1214 | { |
| 1215 | CGrafPtr save_port; |
| 1216 | GDHandle save_device; |
| 1217 | Rect fill_rect; |
| 1218 | RGBColor rgb; |
| 1219 | |
| 1220 | SetRect (&fill_rect, rect->x, rect->y, rect->x + rect->w, rect->y + rect->h); |
| 1221 | |
| 1222 | GetGWorld (&save_port, &save_device); |
| 1223 | SetGWorld (dst->hwdata->offscreen, NULL); |
| 1224 | |
| 1225 | Index2Color (color, &rgb); |
| 1226 | |
| 1227 | RGBForeColor (&rgb); |
| 1228 | PaintRect (&fill_rect); |
| 1229 | |
| 1230 | SetGWorld (save_port, save_device); |
| 1231 | |
| 1232 | return(0); |
| 1233 | } |
| 1234 | |
| 1235 | static int DSp_FlipHWSurface(_THIS, SDL_Surface *surface) |
| 1236 | { |
| 1237 | if ( (surface->flags & SDL_HWSURFACE) ) { |
| 1238 | CGrafPtr dsp_front_buffer, save_port; |
| 1239 | Rect rect; |
| 1240 | |
| 1241 | #if ! TARGET_API_MAC_OSX |
| 1242 | unsigned int old_count; |
| 1243 | #endif |
| 1244 | |
| 1245 | /* pseudo page flipping for VRAM back buffer*/ |
| 1246 | DSpContext_GetFrontBuffer (dsp_context, &dsp_front_buffer); |
| 1247 | SetRect (&rect, 0, 0, surface->w-1, surface->h-1); |
| 1248 | |
| 1249 | GetPort ((GrafPtr *)&save_port); |
| 1250 | SetPort ((GrafPtr)dsp_front_buffer); |
| 1251 | |
| 1252 | /* wait for retrace */ |
| 1253 | /* I have tried doing the swap in interrupt routine (VBL Proc) to do */ |
| 1254 | /* it asynchronously, but apparently CopyBits isn't interrupt safe */ |
| 1255 | |
| 1256 | #if ! TARGET_API_MAC_OSX |
| 1257 | #ifndef DSP_NO_SYNC_VBL |
| 1258 | old_count = retrace_count; |
| 1259 | while (old_count == retrace_count) |
| 1260 | ; |
| 1261 | #endif |
| 1262 | #endif |
| 1263 | |
| 1264 | CopyBits ( GetPortBitMapForCopyBits(dsp_back_buffer), |
| 1265 | GetPortBitMapForCopyBits(dsp_front_buffer), |
| 1266 | &rect, &rect, srcCopy, NULL ); |
| 1267 | |
| 1268 | SetPort ((GrafPtr)save_port); |
| 1269 | |
| 1270 | } else { |
| 1271 | /* not really page flipping at all: DSp just blits the dirty rectangles from DSp_UpdateRects */ |
| 1272 | Boolean busy_flag; |
| 1273 | DSpContext_SwapBuffers (dsp_context, NULL, &busy_flag); /* this waits for VBL */ |
| 1274 | DSpContext_GetBackBuffer (dsp_context, kDSpBufferKind_Normal, &dsp_back_buffer); |
| 1275 | surface->pixels = GetPixBaseAddr( GetPortPixMap(dsp_back_buffer) ); |
| 1276 | } |
| 1277 | return(0); |
| 1278 | } |
| 1279 | |
| 1280 | static int DSp_LockHWSurface(_THIS, SDL_Surface *surface) |
| 1281 | { |
| 1282 | if ( LockPixels (GetGWorldPixMap (surface->hwdata->offscreen)) ) |
| 1283 | return 0; |
| 1284 | else |
| 1285 | return -1; |
| 1286 | } |
| 1287 | |
| 1288 | static void DSp_UnlockHWSurface(_THIS, SDL_Surface *surface) |
| 1289 | { |
| 1290 | UnlockPixels (GetGWorldPixMap (surface->hwdata->offscreen)); |
| 1291 | } |
| 1292 | |
| 1293 | static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *sdl_rects) |
| 1294 | { |
| 1295 | return; |
| 1296 | } |
| 1297 | |
| 1298 | static void DSp_DSpUpdate(_THIS, int numrects, SDL_Rect *sdl_rects) |
| 1299 | { |
| 1300 | #if ! TARGET_API_MAC_OSX /* Unsupported DSp in here */ |
| 1301 | int i; |
| 1302 | Rect rect; |
| 1303 | |
| 1304 | for (i = 0; i < numrects; i++) { |
| 1305 | |
| 1306 | rect.top = sdl_rects[i].y; |
| 1307 | rect.left = sdl_rects[i].x; |
| 1308 | rect.bottom = sdl_rects[i].h + sdl_rects[i].y; |
| 1309 | rect.right = sdl_rects[i].w + sdl_rects[i].x; |
| 1310 | |
| 1311 | DSpContext_InvalBackBufferRect (dsp_context, &rect); |
| 1312 | } |
| 1313 | #endif |
| 1314 | } |
| 1315 | |
| 1316 | static int DSp_CreatePalette(_THIS) { |
| 1317 | |
| 1318 | |
| 1319 | /* Create our palette */ |
| 1320 | SDL_CTab = (CTabHandle)NewHandle(sizeof(ColorSpec)*256 + 8); |
| 1321 | if ( SDL_CTab == nil ) { |
| 1322 | SDL_OutOfMemory(); |
| 1323 | return(-1); |
| 1324 | } |
| 1325 | (**SDL_CTab).ctSeed = GetCTSeed(); |
| 1326 | (**SDL_CTab).ctFlags = 0; |
| 1327 | (**SDL_CTab).ctSize = 255; |
| 1328 | CTabChanged(SDL_CTab); |
| 1329 | SDL_CPal = NewPalette(256, SDL_CTab, pmExplicit+pmTolerant, 0); |
| 1330 | |
| 1331 | return 0; |
| 1332 | } |
| 1333 | |
| 1334 | static int DSp_DestroyPalette(_THIS) { |
| 1335 | |
| 1336 | /* Free palette and restore original one */ |
| 1337 | if ( SDL_CTab != nil ) { |
| 1338 | DisposeHandle((Handle)SDL_CTab); |
| 1339 | SDL_CTab = nil; |
| 1340 | } |
| 1341 | if ( SDL_CPal != nil ) { |
| 1342 | DisposePalette(SDL_CPal); |
| 1343 | SDL_CPal = nil; |
| 1344 | } |
| 1345 | RestoreDeviceClut(SDL_Display); |
| 1346 | |
| 1347 | return (0); |
| 1348 | } |
| 1349 | |
| 1350 | static int DSp_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) |
| 1351 | { |
| 1352 | CTabHandle cTab; |
| 1353 | |
| 1354 | int i; |
| 1355 | |
| 1356 | cTab = SDL_CTab; |
| 1357 | |
| 1358 | /* Verify the range of colors */ |
| 1359 | if ( (firstcolor+ncolors) > ((**cTab).ctSize+1) ) { |
| 1360 | return(0); |
| 1361 | } |
| 1362 | |
| 1363 | /* Set the screen palette and update the display */ |
| 1364 | for(i = 0; i < ncolors; i++) { |
| 1365 | int j = firstcolor + i; |
| 1366 | (**cTab).ctTable[j].value = j; |
| 1367 | (**cTab).ctTable[j].rgb.red = colors[i].r << 8 | colors[i].r; |
| 1368 | (**cTab).ctTable[j].rgb.green = colors[i].g << 8 | colors[i].g; |
| 1369 | (**cTab).ctTable[j].rgb.blue = colors[i].b << 8 | colors[i].b; |
| 1370 | } |
| 1371 | |
| 1372 | SetGDevice(SDL_Display); |
| 1373 | SetEntries(0, (**cTab).ctSize, (ColorSpec *)&(**cTab).ctTable); |
| 1374 | |
| 1375 | return(1); |
| 1376 | } |
| 1377 | |
| 1378 | void DSp_VideoQuit(_THIS) |
| 1379 | { |
| 1380 | int i; |
| 1381 | |
| 1382 | /* Free current video mode */ |
| 1383 | DSp_UnsetVideoMode(this, this->screen); |
| 1384 | |
| 1385 | /* Free Palette and restore original */ |
| 1386 | DSp_DestroyPalette (this); |
| 1387 | |
| 1388 | #if SDL_MACCLASSIC_GAMMA_SUPPORT |
| 1389 | Mac_QuitGamma(this); |
| 1390 | #endif |
| 1391 | |
| 1392 | /* Free list of video modes */ |
| 1393 | if ( SDL_modelist != NULL ) { |
| 1394 | for ( i=0; SDL_modelist[i]; i++ ) { |
| 1395 | SDL_free(SDL_modelist[i]); |
| 1396 | } |
| 1397 | SDL_free(SDL_modelist); |
| 1398 | SDL_modelist = NULL; |
| 1399 | } |
| 1400 | |
| 1401 | /* Unload DrawSprocket */ |
| 1402 | DSpShutdown (); |
| 1403 | } |
| 1404 | |
| 1405 | #if SDL_VIDEO_OPENGL |
| 1406 | |
| 1407 | /* swap buffers with v-sync */ |
| 1408 | static void DSp_GL_SwapBuffers (_THIS) { |
| 1409 | |
| 1410 | #ifndef DSP_NO_SYNC_OPENGL |
| 1411 | |
| 1412 | unsigned int old_count; |
| 1413 | |
| 1414 | old_count = retrace_count; |
| 1415 | while (old_count == retrace_count) |
| 1416 | ; |
| 1417 | #endif |
| 1418 | |
| 1419 | aglSwapBuffers (glContext); |
| 1420 | } |
| 1421 | |
| 1422 | #endif |