Mercurial > sdl-ios-xcode
annotate src/video/macdsp/SDL_dspvideo.c @ 1555:780fd5b61df1
Fixed bug #89
Date: Sun, 23 Oct 2005 16:39:03 +0200
From: "A. Schmid" <sahib@phreaker.net>
Subject: [SDL] no software surfaces with svgalib driver?
Hi,
I noticed that the SDL (1.2.9) svgalib driver only makes use of linear
addressable (framebuffer) video modes. On older systems (like one of
mine), linear addressable modes are often not available.
Especially for cards with VESA VBE < 2.0 the svgalib vesa driver is
unusable, since VESA only supports framebuffering for VBE 2.0 and later.
The changes necessary to add support for software surfaces seem to be
relatively small. I only had to hack src/video/svga/SDL_svgavideo.c (see
attached patch). The code worked fine for me, but it is no more than a
proof of concept and should be reviewed (probably has a memory leak when
switching modes). It also uses the vgagl library (included in the
svgalib package) and needs to be linked against it.
-Alex
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 19 Mar 2006 12:05:16 +0000 |
| parents | 8d9bb0cf2c2a |
| children | e49147870aac e6de7e5fd451 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 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 | |
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70 2. *MacOS 9 or later (but *not* Mac OS X) for hardware accelerated blit / fill |
| 0 | 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 | |
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126 #if defined(__APPLE__) && defined(__MACH__) |
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127 #include <Carbon/Carbon.h> |
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128 #include <DrawSprocket/DrawSprocket.h> |
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129 #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335) |
| 0 | 130 #include <Carbon.h> |
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131 #include <DrawSprocket.h> |
| 0 | 132 #else |
| 133 #include <LowMem.h> | |
| 134 #include <Gestalt.h> | |
| 135 #include <Devices.h> | |
| 136 #include <DiskInit.h> | |
| 137 #include <QDOffscreen.h> | |
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138 #include <DrawSprocket.h> |
| 0 | 139 #endif |
| 140 | |
| 141 #include "SDL_video.h" | |
| 142 #include "SDL_syswm.h" | |
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143 #include "../SDL_sysvideo.h" |
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144 #include "../SDL_blit.h" |
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145 #include "../SDL_pixels_c.h" |
| 0 | 146 #include "SDL_dspvideo.h" |
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147 #include "../maccommon/SDL_macgl_c.h" |
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148 #include "../maccommon/SDL_macwm_c.h" |
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149 #include "../maccommon/SDL_macmouse_c.h" |
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150 #include "../maccommon/SDL_macevents_c.h" |
| 0 | 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 | |
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181 #if SDL_VIDEO_OPENGL |
| 0 | 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 */ | |
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222 #if ! TARGET_API_MAC_OSX |
| 0 | 223 /* This check is only meaningful if you weak-link DrawSprocketLib */ |
| 224 return ((Ptr)DSpStartup != (Ptr)kUnresolvedCFragSymbolAddress); | |
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225 #else |
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226 return 1; // DrawSprocket.framework doesn't have it all, but it's there |
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227 #endif |
| 0 | 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) | |
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238 SDL_free(device->hidden->dspinfo); |
| 0 | 239 |
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240 SDL_free(device->hidden); |
| 0 | 241 } |
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242 SDL_free(device); |
| 0 | 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 */ | |
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251 device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice)); |
| 0 | 252 if ( device ) { |
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253 SDL_memset(device, 0, sizeof (*device)); |
| 0 | 254 device->hidden = (struct SDL_PrivateVideoData *) |
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255 SDL_malloc((sizeof *device->hidden)); |
| 0 | 256 if (device->hidden) |
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257 SDL_memset(device->hidden, 0, sizeof ( *(device->hidden) ) ); |
| 0 | 258 } |
| 259 if ( (device == NULL) || (device->hidden == NULL) ) { | |
| 260 SDL_OutOfMemory(); | |
| 261 | |
| 262 if ( device ) { | |
| 263 | |
| 264 if (device->hidden) | |
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265 SDL_free(device->hidden); |
| 0 | 266 |
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267 SDL_free(device); |
| 0 | 268 } |
| 269 | |
| 270 return(NULL); | |
| 271 } | |
| 272 | |
| 273 /* Allocate DrawSprocket information */ | |
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274 device->hidden->dspinfo = (struct DSpInfo *)SDL_malloc( |
| 0 | 275 (sizeof *device->hidden->dspinfo)); |
| 276 if ( device->hidden->dspinfo == NULL ) { | |
| 277 SDL_OutOfMemory(); | |
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278 SDL_free(device->hidden); |
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279 SDL_free(device); |
| 0 | 280 return(0); |
| 281 } | |
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282 SDL_memset(device->hidden->dspinfo, 0, (sizeof *device->hidden->dspinfo)); |
| 0 | 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; | |
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300 #if SDL_VIDEO_OPENGL |
| 0 | 301 device->GL_MakeCurrent = Mac_GL_MakeCurrent; |
| 302 device->GL_SwapBuffers = DSp_GL_SwapBuffers; | |
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303 device->GL_LoadLibrary = Mac_GL_LoadLibrary; |
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304 device->GL_GetProcAddress = Mac_GL_GetProcAddress; |
| 0 | 305 #endif |
| 306 device->SetCaption = NULL; | |
| 307 device->SetIcon = NULL; | |
| 308 device->IconifyWindow = NULL; | |
| 309 device->GrabInput = NULL; | |
| 310 device->GetWMInfo = NULL; | |
| 311 device->FreeWMCursor = Mac_FreeWMCursor; | |
| 312 device->CreateWMCursor = Mac_CreateWMCursor; | |
| 313 device->ShowWMCursor = Mac_ShowWMCursor; | |
| 314 device->WarpWMCursor = Mac_WarpWMCursor; | |
| 315 device->InitOSKeymap = Mac_InitOSKeymap; | |
| 316 device->PumpEvents = Mac_PumpEvents; | |
| 317 | |
| 318 device->GrabInput = NULL; | |
| 319 device->CheckMouseMode = NULL; | |
| 320 | |
| 321 device->free = DSp_DeleteDevice; | |
| 322 | |
| 323 return device; | |
| 324 } | |
| 325 | |
| 326 VideoBootStrap DSp_bootstrap = { | |
| 327 "DSp", "MacOS DrawSprocket", | |
| 328 DSp_Available, DSp_CreateDevice | |
| 329 }; | |
| 330 | |
| 331 /* Use DSp/Display Manager to build mode list for given screen */ | |
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332 static SDL_Rect** DSp_BuildModeList (const GDHandle gDevice, int *displayWidth, int *displayHeight) |
| 0 | 333 { |
| 334 DSpContextAttributes attributes; | |
| 335 DSpContextReference context; | |
| 336 DisplayIDType displayID; | |
| 337 SDL_Rect temp_list [16]; | |
| 338 SDL_Rect **mode_list; | |
| 339 int width, height, i, j; | |
| 340 | |
| 341 #if TARGET_API_MAC_OSX | |
| 342 | |
| 343 displayID = 0; | |
| 344 | |
| 345 #else | |
| 346 /* Ask Display Manager for integer id of screen device */ | |
| 347 if ( DMGetDisplayIDByGDevice (gDevice, &displayID, SDL_TRUE) != noErr ) { | |
| 348 return NULL; | |
| 349 } | |
| 350 #endif | |
| 351 /* Get the first possible DSp context on this device */ | |
| 352 if ( DSpGetFirstContext (displayID, &context) != noErr ) { | |
| 353 return NULL; | |
| 354 } | |
| 355 | |
| 356 if ( DSpContext_GetAttributes (context, &attributes) != noErr ) | |
| 357 return NULL; | |
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358 |
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359 *displayWidth = attributes.displayWidth; |
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360 *displayHeight = attributes.displayHeight; |
| 0 | 361 |
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362 for ( i = 0; i < SDL_arraysize(temp_list); i++ ) { |
| 0 | 363 width = attributes.displayWidth; |
| 364 height = attributes.displayHeight; | |
| 365 | |
| 366 temp_list [i].x = 0 | attributes.displayBestDepth; | |
| 367 temp_list [i].y = 0; | |
| 368 temp_list [i].w = width; | |
| 369 temp_list [i].h = height; | |
| 370 | |
| 371 /* DSp will report many different contexts with the same width and height. */ | |
| 372 /* They will differ in bit depth and refresh rate. */ | |
| 373 /* We will ignore them until we reach one with a different width/height */ | |
| 374 /* When there are no more contexts to look at, we will quit building the list*/ | |
| 375 while ( width == attributes.displayWidth && height == attributes.displayHeight ) { | |
| 376 | |
| 377 OSStatus err = DSpGetNextContext (context, &context); | |
| 378 if (err != noErr) | |
| 379 if (err == kDSpContextNotFoundErr) | |
| 380 goto done; | |
| 381 else | |
| 382 return NULL; | |
| 383 | |
| 384 if ( DSpContext_GetAttributes (context, &attributes) != noErr ) | |
| 385 return NULL; | |
| 386 | |
| 387 temp_list [i].x |= attributes.displayBestDepth; | |
| 388 } | |
| 389 } | |
| 390 done: | |
| 391 i++; /* i was not incremented before kicking out of the loop */ | |
| 392 | |
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393 mode_list = (SDL_Rect**) SDL_malloc (sizeof (SDL_Rect*) * (i+1)); |
| 0 | 394 if (mode_list) { |
| 395 | |
| 396 /* -dw- new stuff: build in reverse order so largest sizes list first */ | |
| 397 for (j = i-1; j >= 0; j--) { | |
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398 mode_list [j] = (SDL_Rect*) SDL_malloc (sizeof (SDL_Rect)); |
| 0 | 399 if (mode_list [j]) |
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400 SDL_memcpy (mode_list [j], &(temp_list [j]), sizeof (SDL_Rect)); |
| 0 | 401 else { |
| 402 SDL_OutOfMemory (); | |
| 403 return NULL; | |
| 404 } | |
| 405 } | |
| 406 mode_list [i] = NULL; /* append null to the end */ | |
| 407 } | |
| 408 else { | |
| 409 SDL_OutOfMemory (); | |
| 410 return NULL; | |
| 411 } | |
| 412 | |
| 413 return mode_list; | |
| 414 } | |
| 415 | |
| 416 static void DSp_IsHWAvailable (_THIS, SDL_PixelFormat *vformat) | |
| 417 { | |
| 418 /* | |
| 419 VRAM GWorlds are only available on OS 9 or later. | |
| 420 Even with OS 9, some display drivers won't support it, | |
| 421 so we create a test GWorld and check for errors. | |
| 422 */ | |
| 423 | |
| 424 long versionSystem; | |
| 425 | |
| 426 dsp_vram_available = SDL_FALSE; | |
| 427 dsp_agp_available = SDL_FALSE; | |
| 428 | |
| 429 Gestalt ('sysv', &versionSystem); | |
| 430 if (0x00000860 < (versionSystem & 0x0000FFFF)) { | |
| 431 | |
| 432 GWorldPtr offscreen; | |
| 433 OSStatus err; | |
| 434 Rect bounds; | |
| 435 | |
| 436 SetRect (&bounds, 0, 0, 320, 240); | |
| 437 | |
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438 #if useDistantHdwrMem && useLocalHdwrMem |
| 0 | 439 err = NewGWorld (&offscreen, vformat->BitsPerPixel, &bounds, NULL, SDL_Display, useDistantHdwrMem | noNewDevice); |
| 440 if (err == noErr) { | |
| 441 dsp_vram_available = SDL_TRUE; | |
| 442 DisposeGWorld (offscreen); | |
| 443 } | |
| 444 | |
| 445 err = NewGWorld (&offscreen, vformat->BitsPerPixel, &bounds, NULL, SDL_Display, useLocalHdwrMem | noNewDevice); | |
| 446 if (err == noErr) { | |
| 447 DisposeGWorld (offscreen); | |
| 448 dsp_agp_available = SDL_TRUE; | |
| 449 } | |
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450 #endif |
| 0 | 451 } |
| 452 } | |
| 453 | |
| 454 static int DSp_GetMainDevice (_THIS, GDHandle *device) | |
| 455 { | |
| 456 | |
| 457 #if TARGET_API_MAC_OSX | |
| 458 /* DSpUserSelectContext not available on OS X */ | |
| 459 *device = GetMainDevice(); | |
| 460 return 0; | |
| 461 #else | |
| 462 | |
| 463 DSpContextAttributes attrib; | |
| 464 DSpContextReference context; | |
| 465 DisplayIDType display_id; | |
| 466 GDHandle main_device; | |
| 467 GDHandle device_list; | |
| 468 | |
| 469 device_list = GetDeviceList (); | |
| 470 main_device = GetMainDevice (); | |
| 471 | |
| 472 /* Quick check to avoid slower method when only one display exists */ | |
| 473 if ( (**device_list).gdNextGD == NULL ) { | |
| 474 *device = main_device; | |
| 475 return 0; | |
| 476 } | |
| 477 | |
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478 SDL_memset (&attrib, 0, sizeof (DSpContextAttributes)); |
| 0 | 479 |
| 480 /* These attributes are hopefully supported on all devices...*/ | |
| 481 attrib.displayWidth = 640; | |
| 482 attrib.displayHeight = 480; | |
| 483 attrib.displayBestDepth = 8; | |
| 484 attrib.backBufferBestDepth = 8; | |
| 485 attrib.displayDepthMask = kDSpDepthMask_All; | |
| 486 attrib.backBufferDepthMask = kDSpDepthMask_All; | |
| 487 attrib.colorNeeds = kDSpColorNeeds_Require; | |
| 488 attrib.pageCount = 1; | |
| 489 | |
| 490 if (noErr != DMGetDisplayIDByGDevice (main_device, &display_id, SDL_FALSE)) { | |
| 491 SDL_SetError ("Display Manager couldn't associate GDevice with a Display ID"); | |
| 492 return (-1); | |
| 493 } | |
| 494 | |
| 495 /* Put up dialog on main display to select which display to use */ | |
| 496 if (noErr != DSpUserSelectContext (&attrib, display_id, NULL, &context)) { | |
| 497 SDL_SetError ("DrawSprocket couldn't create a context"); | |
| 498 return (-1); | |
| 499 } | |
| 500 | |
| 501 if (noErr != DSpContext_GetDisplayID (context, &display_id)) { | |
| 502 SDL_SetError ("DrawSprocket couldn't get display ID"); | |
| 503 return (-1); | |
| 504 } | |
| 505 | |
| 506 if (noErr != DMGetGDeviceByDisplayID (display_id, &main_device, SDL_FALSE)) { | |
| 507 SDL_SetError ("Display Manager couldn't associate Display ID with GDevice"); | |
| 508 return (-1); | |
| 509 } | |
| 510 | |
| 511 *device = main_device; | |
| 512 return (0); | |
| 513 #endif | |
| 514 } | |
| 515 | |
| 516 static int DSp_VideoInit(_THIS, SDL_PixelFormat *vformat) | |
| 517 { | |
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518 NumVersion dsp_version = { 0x01, 0x00, 0x00, 0x00 }; |
| 0 | 519 |
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520 #if UNIVERSAL_INTERFACES_VERSION > 0x0320 |
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521 dsp_version = DSpGetVersion (); |
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522 #endif |
| 0 | 523 |
| 524 if ( (dsp_version.majorRev == 1 && dsp_version.minorAndBugRev < 0x73) || | |
| 525 (dsp_version.majorRev < 1) ) { | |
| 526 | |
| 527 /* StandardAlert (kAlertStopAlert, "\pError!", | |
| 528 "\pI need DrawSprocket 1.7.3 or later!\n" | |
| 529 "You can find a newer version at http://www.apple.com/swupdates.", | |
| 530 NULL, NULL); | |
| 531 */ | |
| 532 SDL_SetError ("DrawSprocket version is too old. Need 1.7.3 or later."); | |
| 533 return (-1); | |
| 534 } | |
| 535 | |
| 536 if ( DSpStartup () != noErr ) { | |
| 537 SDL_SetError ("DrawSprocket couldn't startup"); | |
| 538 return(-1); | |
| 539 } | |
| 540 | |
| 541 /* Start DSpintosh events */ | |
| 542 Mac_InitEvents(this); | |
| 543 | |
| 544 /* Get a handle to the main monitor, or choose one on multiple monitor setups */ | |
| 545 if ( DSp_GetMainDevice(this, &SDL_Display) < 0) | |
| 546 return (-1); | |
| 547 | |
| 548 /* Determine pixel format */ | |
| 549 vformat->BitsPerPixel = GetPixDepth ( (**SDL_Display).gdPMap ); | |
| 550 dsp_old_depth = vformat->BitsPerPixel; | |
| 551 | |
| 552 switch (vformat->BitsPerPixel) { | |
| 553 case 16: | |
| 554 vformat->Rmask = 0x00007c00; | |
| 555 vformat->Gmask = 0x000003e0; | |
| 556 vformat->Bmask = 0x0000001f; | |
| 557 break; | |
| 558 default: | |
| 559 break; | |
| 560 } | |
| 561 | |
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562 if ( DSp_CreatePalette (this) < 0 ) { |
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563 SDL_SetError ("Could not create palette"); |
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564 return (-1); |
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565 } |
| 0 | 566 |
| 567 /* Get a list of available fullscreen modes */ | |
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568 SDL_modelist = DSp_BuildModeList (SDL_Display, |
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569 &this->info.current_w, &this->info.current_h); |
| 0 | 570 if (SDL_modelist == NULL) { |
| 571 SDL_SetError ("DrawSprocket could not build a mode list"); | |
| 572 return (-1); | |
| 573 } | |
| 574 | |
| 575 /* Check for VRAM and AGP GWorlds for HW Blitting */ | |
| 576 DSp_IsHWAvailable (this, vformat); | |
| 577 | |
| 578 this->info.wm_available = 0; | |
| 579 | |
| 580 if (dsp_vram_available || dsp_agp_available) { | |
| 581 | |
| 582 this->info.hw_available = SDL_TRUE; | |
| 583 | |
| 584 this->CheckHWBlit = DSp_CheckHWBlit; | |
| 585 this->info.blit_hw = SDL_TRUE; | |
| 586 | |
| 587 this->FillHWRect = DSp_FillHWRect; | |
| 588 this->info.blit_fill = SDL_TRUE; | |
| 589 | |
| 590 #ifdef DSP_TRY_CC_AND_AA | |
| 591 this->SetHWColorKey = DSp_SetHWColorKey; | |
| 592 this->info.blit_hw_CC = SDL_TRUE; | |
| 593 | |
| 594 this->SetHWAlpha = DSp_SetHWAlpha; | |
| 595 this->info.blit_hw_A = SDL_TRUE; | |
| 596 #endif | |
| 597 | |
| 598 } | |
| 599 | |
| 600 return(0); | |
| 601 } | |
| 602 | |
| 603 static SDL_Rect **DSp_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags) | |
| 604 { | |
| 605 static SDL_Rect *dsp_modes[16]; | |
| 606 int i = 0, j = 0; | |
| 607 | |
| 608 if ( format->BitsPerPixel == 0 ) | |
| 609 return ( (SDL_Rect**) NULL ); | |
| 610 | |
| 611 while (SDL_modelist[i] != NULL) { | |
| 612 | |
| 613 if (SDL_modelist[i]->x & format->BitsPerPixel) { | |
| 614 dsp_modes[j] = SDL_modelist[i]; | |
| 615 j++; | |
| 616 } | |
| 617 i++; | |
| 618 } | |
| 619 | |
| 620 dsp_modes[j] = NULL; | |
| 621 | |
| 622 return dsp_modes; | |
| 623 } | |
| 624 | |
| 625 /* Various screen update functions available */ | |
| 626 static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *rects); | |
| 627 | |
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628 #if ! TARGET_API_MAC_OSX |
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629 |
| 0 | 630 static volatile unsigned int retrace_count = 0; /* -dw- need volatile because it updates asychronously */ |
| 631 | |
| 632 Boolean DSp_VBLProc ( DSpContextReference context, void *ref_con ) | |
| 633 { | |
| 634 retrace_count++; | |
| 635 | |
| 636 return 1; /* Darrell, is this right? */ | |
| 637 } | |
| 638 | |
| 639 static void DSp_SetHWError (OSStatus err, int is_agp) | |
| 640 { | |
| 641 char message[1024]; | |
| 642 const char *fmt, *mem; | |
| 643 | |
| 644 if ( is_agp ) { | |
| 645 mem = "AGP Memory"; | |
| 646 } else { | |
| 647 mem = "VRAM"; | |
| 648 } | |
| 649 switch(err) { | |
| 650 case memFullErr: | |
| 651 fmt = "Hardware surface possible but not enough %s available"; | |
| 652 break; | |
| 653 case cDepthErr: | |
| 654 fmt = "Hardware surface possible but invalid color depth"; | |
| 655 break; | |
| 656 default: | |
| 657 fmt = "Hardware surface could not be allocated in %s - unknown error"; | |
| 658 break; | |
| 659 } | |
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660 SDL_snprintf(message, SDL_arraysize(message), fmt, mem); |
| 0 | 661 SDL_SetError(message); |
| 662 } | |
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663 #endif // TARGET_API_MAC_OSX |
| 0 | 664 |
| 665 /* put up a dialog to verify display change */ | |
| 666 static int DSp_ConfirmSwitch () { | |
| 667 | |
| 668 /* resource id's for dialog */ | |
| 669 const int rDialog = 1002; | |
| 670 const int bCancel = 1; | |
| 671 const int bOK = 2; | |
| 672 | |
| 673 DialogPtr dialog; | |
| 674 OSStatus err; | |
| 675 SInt32 response; | |
| 676 DialogItemIndex item = 0; | |
| 677 GrafPtr savePort; | |
| 678 | |
| 679 GetPort (&savePort); | |
| 680 | |
| 681 dialog = GetNewDialog (rDialog, NULL, (WindowPtr) -1); | |
| 682 if (dialog == NULL) | |
| 683 return (0); | |
| 684 | |
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685 #if TARGET_API_CARBON |
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686 SetPort (GetDialogPort(dialog)); |
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687 #else |
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688 SetPort ((WindowPtr) dialog); |
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689 #endif |
| 0 | 690 |
| 691 SetDialogDefaultItem (dialog, bCancel); | |
| 692 SetDialogCancelItem (dialog, bCancel); | |
| 693 | |
| 694 SetEventMask (everyEvent); | |
| 695 FlushEvents (everyEvent, 0); | |
| 696 | |
| 697 /* On MacOS 8.5 or later, we can make the dialog go away after 15 seconds */ | |
| 698 /* This is good since it's possible user can't even see the dialog! */ | |
| 699 /* Requires linking to DialogsLib */ | |
| 700 err = Gestalt(gestaltSystemVersion,&response); | |
| 701 if (err == noErr && response >= 0x00000850) { | |
| 702 SetDialogTimeout(dialog, bCancel, 15); | |
| 703 } | |
| 704 | |
| 705 do { | |
| 706 | |
| 707 ModalDialog ( NULL, &item ); | |
| 708 | |
| 709 } while ( item != bCancel && item != bOK && err != noErr); | |
| 710 | |
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711 |
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712 DisposeDialog (dialog); |
| 0 | 713 SetPort (savePort); |
| 714 | |
| 715 SetEventMask(everyEvent - autoKeyMask); | |
| 716 FlushEvents(everyEvent, 0); | |
| 717 | |
| 718 return (item - 1); | |
| 719 } | |
| 720 | |
| 721 static void DSp_UnsetVideoMode(_THIS, SDL_Surface *current) | |
| 722 { | |
| 723 | |
| 724 | |
| 725 if ( current->flags & SDL_OPENGL ) { | |
| 726 Mac_GL_Quit (this); | |
| 727 } | |
| 728 | |
| 729 if (dsp_context != NULL) { | |
| 730 | |
| 731 GWorldPtr front; | |
| 732 DSpContext_GetFrontBuffer (dsp_context, &front); | |
| 733 | |
| 734 if (front != dsp_back_buffer) | |
| 735 DisposeGWorld (dsp_back_buffer); | |
| 736 | |
| 737 if (current->hwdata) | |
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738 SDL_free(current->hwdata); |
| 0 | 739 |
| 740 DSpContext_SetState (dsp_context, kDSpContextState_Inactive ); | |
| 741 DSpContext_Release (dsp_context); | |
| 742 | |
| 743 dsp_context = NULL; | |
| 744 } | |
| 745 | |
| 746 if (SDL_Window != NULL) { | |
| 747 DisposeWindow (SDL_Window); | |
| 748 SDL_Window = NULL; | |
| 749 } | |
| 750 | |
| 751 current->pixels = NULL; | |
| 752 current->flags = 0; | |
| 753 } | |
| 754 | |
| 755 static SDL_Surface *DSp_SetVideoMode(_THIS, | |
| 756 SDL_Surface *current, int width, int height, int bpp, Uint32 flags) | |
| 757 { | |
| 758 | |
|
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759 #if !TARGET_API_MAC_OSX |
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760 DisplayIDType display_id; |
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761 Fixed freq; |
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762 #endif |
| 0 | 763 DSpContextAttributes attrib; |
| 764 OSStatus err; | |
| 765 UInt32 rmask = 0, gmask = 0, bmask = 0; | |
| 766 | |
| 767 int page_count; | |
| 768 int double_buf; | |
| 769 int hw_surface; | |
| 770 int use_dsp_back_buffer; | |
| 771 | |
| 772 DSp_UnsetVideoMode (this, current); | |
| 773 | |
| 774 if (bpp != dsp_old_depth) | |
| 775 DSp_DestroyPalette (this); | |
| 776 | |
| 777 double_buf = (flags & SDL_DOUBLEBUF) != 0; | |
| 778 hw_surface = (flags & SDL_HWSURFACE) != 0; | |
| 779 use_dsp_back_buffer = !dsp_vram_available || !hw_surface ; | |
| 780 | |
| 781 current->flags |= SDL_FULLSCREEN; | |
| 782 | |
| 783 rebuild: | |
| 784 | |
| 785 if ( double_buf && use_dsp_back_buffer ) { | |
| 786 page_count = 2; | |
| 787 } else { | |
| 788 page_count = 1; | |
| 789 } | |
| 790 | |
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791 SDL_memset (&attrib, 0, sizeof (DSpContextAttributes)); |
| 0 | 792 attrib.displayWidth = width; |
| 793 attrib.displayHeight = height; | |
| 794 attrib.displayBestDepth = bpp; | |
| 795 attrib.backBufferBestDepth = bpp; | |
| 796 attrib.displayDepthMask = kDSpDepthMask_All; | |
| 797 attrib.backBufferDepthMask = kDSpDepthMask_All; | |
| 798 attrib.colorNeeds = kDSpColorNeeds_Require; | |
| 799 attrib.colorTable = 0; | |
| 800 attrib.pageCount = page_count; | |
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801 #if TARGET_API_MAC_OSX || UNIVERSAL_INTERFACES_VERSION == 0x0320 |
| 0 | 802 |
| 803 if ( DSpFindBestContext (&attrib, &dsp_context) != noErr ) { | |
| 804 SDL_SetError ("DrawSprocket couldn't find a context"); | |
| 805 return NULL; | |
| 806 } | |
| 807 | |
| 808 #else | |
| 809 if ( noErr != DMGetDisplayIDByGDevice (SDL_Display, &display_id, SDL_FALSE) ) { | |
| 810 SDL_SetError ("Display Manager couldn't associate GDevice with display_id"); | |
| 811 return NULL; | |
| 812 } | |
|
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813 if ( DSpFindBestContextOnDisplayID(&attrib, &dsp_context, display_id) != noErr ) { |
| 0 | 814 SDL_SetError ("DrawSprocket couldn't find a suitable context on given display"); |
| 815 return NULL; | |
| 816 } | |
| 817 | |
| 818 #endif | |
| 819 if ( DSpContext_Reserve (dsp_context, &attrib) != noErr ) { | |
| 820 SDL_SetError ("DrawSprocket couldn't get the needed resources to build the display"); | |
| 821 return NULL; | |
| 822 } | |
| 823 | |
| 824 if ( (err = DSpContext_SetState (dsp_context, kDSpContextState_Active)) != noErr ) { | |
| 825 | |
| 826 if (err == kDSpConfirmSwitchWarning) { | |
| 827 | |
| 828 if ( ! DSp_ConfirmSwitch () ) { | |
| 829 | |
| 830 DSpContext_Release (dsp_context); | |
| 831 dsp_context = NULL; | |
| 832 SDL_SetError ("User cancelled display switch"); | |
| 833 return NULL; | |
| 834 } | |
| 835 else | |
| 836 /* Have to reactivate context. Why? */ | |
| 837 DSpContext_SetState (dsp_context, kDSpContextState_Active); | |
| 838 | |
| 839 } | |
| 840 else { | |
| 841 SDL_SetError ("DrawSprocket couldn't activate the context"); | |
| 842 return NULL; | |
| 843 } | |
| 844 } | |
| 845 | |
| 846 | |
| 847 if (bpp != dsp_old_depth) { | |
| 848 | |
| 849 DSp_CreatePalette (this); | |
| 850 | |
| 851 /* update format if display depth changed */ | |
| 852 if (bpp == 16) { | |
| 853 | |
| 854 rmask = 0x00007c00; | |
| 855 gmask = 0x000003e0; | |
| 856 bmask = 0x0000001f; | |
| 857 } | |
| 858 if ( ! SDL_ReallocFormat (current, bpp, rmask, gmask, bmask, 0 ) ) { | |
| 859 | |
| 860 SDL_SetError ("Could not reallocate video format."); | |
| 861 return(NULL); | |
| 862 } | |
| 863 } | |
| 864 | |
| 865 if (!double_buf) { | |
| 866 | |
| 867 /* single-buffer context */ | |
| 868 DSpContext_GetFrontBuffer (dsp_context, &dsp_back_buffer); | |
| 869 | |
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870 current->hwdata = (private_hwdata*) SDL_malloc (sizeof (private_hwdata)); |
| 0 | 871 if (current ->hwdata == NULL) { |
| 872 SDL_OutOfMemory (); | |
| 873 return NULL; | |
| 874 } | |
| 875 current->hwdata->offscreen = dsp_back_buffer; | |
| 876 current->flags |= SDL_HWSURFACE; | |
| 877 this->UpdateRects = DSp_DirectUpdate; | |
| 878 } | |
| 879 else if ( use_dsp_back_buffer ) { | |
| 880 | |
| 881 DSpContext_GetBackBuffer (dsp_context, kDSpBufferKind_Normal, &dsp_back_buffer); | |
| 882 | |
| 883 current->flags |= SDL_DOUBLEBUF | SDL_SWSURFACE; /* only front buffer is in VRAM */ | |
| 884 this->UpdateRects = DSp_DSpUpdate; | |
| 885 } | |
| 886 else if ( DSp_NewHWSurface(this, &dsp_back_buffer, bpp, width-1, height-1) == 0 ) { | |
| 887 | |
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888 current->hwdata = (private_hwdata*) SDL_malloc (sizeof (private_hwdata)); |
| 0 | 889 if (current ->hwdata == NULL) { |
| 890 SDL_OutOfMemory (); | |
| 891 return NULL; | |
| 892 } | |
| 893 | |
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894 SDL_memset (current->hwdata, 0, sizeof (private_hwdata)); |
| 0 | 895 current->hwdata->offscreen = dsp_back_buffer; |
| 896 current->flags |= SDL_DOUBLEBUF | SDL_HWSURFACE; | |
| 897 this->UpdateRects = DSp_DirectUpdate; /* hardware doesn't do update rects, must be page-flipped */ | |
| 898 } | |
| 899 else { | |
| 900 | |
| 901 DSpContext_Release (dsp_context); | |
| 902 use_dsp_back_buffer = SDL_TRUE; | |
| 903 goto rebuild; | |
| 904 } | |
| 905 | |
| 906 current->pitch = GetPortPixRowBytes(dsp_back_buffer) & 0x3FFF; | |
| 907 current->pixels = GetPixBaseAddr(GetPortPixMap(dsp_back_buffer)); | |
| 908 | |
| 909 current->w = width; | |
| 910 current->h = height; | |
| 911 | |
| 912 #if ! TARGET_API_MAC_OSX | |
| 913 | |
| 914 if (use_dsp_back_buffer) { | |
| 915 | |
| 916 DSpContext_GetMonitorFrequency (dsp_context, &freq); | |
| 917 DSpContext_SetMaxFrameRate (dsp_context, freq >> 16); | |
| 918 } | |
| 919 | |
| 920 | |
| 921 if ( (current->flags & SDL_HWSURFACE) || (current->flags & SDL_OPENGL) ) | |
| 922 DSpContext_SetVBLProc (dsp_context, DSp_VBLProc, NULL); | |
| 923 #endif | |
| 924 | |
| 925 if (bpp == 8) | |
| 926 current->flags |= SDL_HWPALETTE; | |
| 927 | |
| 928 if (flags & SDL_OPENGL) { | |
| 929 | |
| 930 Rect rect; | |
| 931 RGBColor rgb = { 0.0, 0.0, 0.0 }; | |
| 932 GrafPtr save_port; | |
| 933 | |
| 934 SetRect (&rect, 0, 0, width, height); | |
| 935 SDL_Window = NewCWindow(nil, &( (**SDL_Display).gdRect), "\p", SDL_TRUE, plainDBox, (WindowPtr)-1, SDL_FALSE, 0); | |
| 936 | |
| 937 if (SDL_Window == NULL) { | |
| 938 | |
| 939 SDL_SetError ("DSp_SetVideoMode : OpenGL window could not be created."); | |
| 940 return NULL; | |
| 941 } | |
| 942 | |
| 943 /* Set window color to black to avoid white flash*/ | |
| 944 GetPort (&save_port); | |
|
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945 #if TARGET_API_MAC_CARBON |
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946 SetPort (GetWindowPort(SDL_Window)); |
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947 #else |
| 0 | 948 SetPort (SDL_Window); |
|
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|
949 #endif |
| 0 | 950 RGBForeColor (&rgb); |
| 951 PaintRect (&rect); | |
| 952 SetPort (save_port); | |
| 953 | |
| 954 SetPortWindowPort (SDL_Window); | |
| 955 SelectWindow (SDL_Window); | |
| 956 | |
| 957 if ( Mac_GL_Init (this) < 0 ) { | |
| 958 | |
| 959 SDL_SetError ("DSp_SetVideoMode : could not create OpenGL context."); | |
| 960 return NULL; | |
| 961 } | |
| 962 | |
| 963 current->flags |= SDL_OPENGL; | |
| 964 } | |
| 965 | |
| 966 return current; | |
| 967 } | |
| 968 | |
| 969 #ifdef DSP_TRY_CC_AND_AA | |
| 970 | |
| 971 static int DSp_MakeHWMask (_THIS, SDL_Surface *surface) | |
| 972 { | |
| 973 GDHandle save_device; | |
| 974 CGrafPtr save_port; | |
| 975 GWorldPtr temp; | |
| 976 RGBColor black = { 0, 0, 0 }; | |
| 977 RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF }; | |
| 978 Rect rect; | |
| 979 | |
| 980 Uint32 depth = GetPixDepth ( GetGDevPixMap (SDL_Display) ); | |
| 981 | |
| 982 SetRect (&rect, 0, 0, surface->w, surface->h); | |
| 983 | |
| 984 if ( noErr != NewGWorld (&(surface->hwdata->mask), depth, &rect, 0, SDL_Display, 0 ) < 0 ) { | |
| 985 | |
| 986 SDL_OutOfMemory (); | |
| 987 return (-1); | |
| 988 } | |
| 989 | |
| 990 if ( noErr != NewGWorld (&temp, depth, &rect, 0 , SDL_Display, 0 ) ) { | |
| 991 | |
| 992 SDL_OutOfMemory (); | |
| 993 return (-1); | |
| 994 } | |
| 995 | |
| 996 | |
| 997 GetGWorld (&save_port, &save_device); | |
| 998 SetGWorld (surface->hwdata->mask, SDL_Display); | |
| 999 | |
| 1000 RGBForeColor (&white); | |
| 1001 PaintRect (&rect); | |
| 1002 | |
| 1003 RGBBackColor (&(surface->hwdata->trans)); | |
| 1004 | |
| 1005 CopyBits ( GetPortBitMapForCopyBits(surface->hwdata->offscreen), | |
| 1006 GetPortBitMapForCopyBits(surface->hwdata->mask), | |
| 1007 &rect, &rect, transparent, NULL ); | |
| 1008 | |
| 1009 SetGWorld (surface->hwdata->mask, SDL_Display); | |
| 1010 SetGWorld (save_port, save_device); | |
| 1011 return (0); | |
| 1012 } | |
| 1013 | |
| 1014 static int DSp_SetHWAlpha(_THIS, SDL_Surface *surface, UInt8 alpha) | |
| 1015 { | |
| 1016 surface->hwdata->alpha.red = (alpha / 255.0) * 65535; | |
| 1017 surface->hwdata->alpha.blue = (alpha / 255.0) * 65535; | |
| 1018 surface->hwdata->alpha.green = (alpha / 255.0) * 65535; | |
| 1019 | |
| 1020 surface->flags |= SDL_SRCALPHA; | |
| 1021 | |
| 1022 if (surface->flags & SDL_SRCCOLORKEY) { | |
| 1023 return(DSp_MakeHWMask (this, surface)); | |
| 1024 } | |
| 1025 return(0); | |
| 1026 } | |
| 1027 | |
| 1028 static int DSp_SetHWColorKey(_THIS, SDL_Surface *surface, Uint32 key) | |
| 1029 { | |
| 1030 CGrafPtr save_port; | |
| 1031 GDHandle save_device; | |
| 1032 | |
| 1033 GetGWorld (&save_port, &save_device); | |
| 1034 SetGWorld (surface->hwdata->offscreen, NULL); | |
| 1035 | |
| 1036 Index2Color (key, &(surface->hwdata->trans)); | |
| 1037 surface->flags |= SDL_SRCCOLORKEY; | |
| 1038 | |
| 1039 SetGWorld (save_port, save_device); | |
| 1040 | |
| 1041 if ( surface->flags & SDL_SRCALPHA ) { | |
| 1042 return(DSp_MakeHWMask (this, surface)); | |
| 1043 } | |
| 1044 return(0); | |
| 1045 } | |
| 1046 | |
| 1047 #endif /* DSP_TRY_CC_AND_AA */ | |
| 1048 | |
| 1049 static int DSp_NewHWSurface(_THIS, CGrafPtr *port, int depth, int width, int height) { | |
| 1050 | |
| 1051 OSStatus err; | |
| 1052 Rect bounds; | |
| 1053 | |
| 1054 SetRect (&bounds, 0, 0, width, height); | |
| 1055 | |
|
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changeset
|
1056 #if useDistantHdwrMem && useLocalHdwrMem |
| 0 | 1057 if (dsp_vram_available) { |
| 1058 /* try VRAM */ | |
| 1059 err = NewGWorld (port, depth, &bounds, 0 , SDL_Display, useDistantHdwrMem | noNewDevice ); | |
| 1060 if (err != noErr) | |
| 1061 DSp_SetHWError (err, SDL_FALSE); | |
| 1062 else | |
| 1063 return (0); | |
| 1064 } | |
| 1065 | |
| 1066 if (dsp_agp_available) { | |
| 1067 /* try AGP */ | |
| 1068 err = NewGWorld (port, depth, &bounds, 0 , SDL_Display, useLocalHdwrMem | noNewDevice ); | |
| 1069 | |
| 1070 if (err != noErr) | |
| 1071 DSp_SetHWError (err, SDL_TRUE); | |
| 1072 else | |
| 1073 return (0); | |
| 1074 } | |
|
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|
1075 #endif |
| 0 | 1076 |
| 1077 return (-1); | |
| 1078 } | |
| 1079 | |
| 1080 static int DSp_AllocHWSurface(_THIS, SDL_Surface *surface) | |
| 1081 { | |
| 1082 GWorldPtr temp; | |
| 1083 | |
| 1084 if ( DSp_NewHWSurface (this, &temp, surface->format->BitsPerPixel, surface->w, surface->h) < 0 ) | |
| 1085 return (-1); | |
| 1086 | |
|
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1087 surface->hwdata = (private_hwdata*) SDL_malloc (sizeof (private_hwdata)); |
| 0 | 1088 if (surface->hwdata == NULL) { |
| 1089 SDL_OutOfMemory (); | |
| 1090 return -1; | |
| 1091 } | |
| 1092 | |
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1093 SDL_memset (surface->hwdata, 0, sizeof(private_hwdata)); |
| 0 | 1094 surface->hwdata->offscreen = temp; |
| 1095 surface->pitch = GetPixRowBytes (GetPortPixMap (temp)) & 0x3FFF; | |
| 1096 surface->pixels = GetPixBaseAddr (GetPortPixMap (temp)); | |
| 1097 surface->flags |= SDL_HWSURFACE; | |
| 1098 #ifdef DSP_TRY_CC_AND_AA | |
| 1099 surface->flags |= SDL_HWACCEL; | |
| 1100 #endif | |
| 1101 return 0; | |
| 1102 } | |
| 1103 | |
| 1104 static void DSp_FreeHWSurface(_THIS, SDL_Surface *surface) | |
| 1105 { | |
| 1106 if (surface->hwdata->offscreen != NULL) | |
| 1107 DisposeGWorld (surface->hwdata->offscreen); | |
|
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1108 SDL_free(surface->hwdata); |
| 0 | 1109 |
| 1110 surface->pixels = NULL; | |
| 1111 } | |
| 1112 | |
| 1113 static int DSp_CheckHWBlit(_THIS, SDL_Surface *src, SDL_Surface *dest) | |
| 1114 { | |
| 1115 int accelerated; | |
| 1116 | |
| 1117 /* Set initial acceleration on */ | |
| 1118 src->flags |= SDL_HWACCEL; | |
| 1119 | |
| 1120 /* Set the surface attributes */ | |
| 1121 if ( (src->flags & SDL_SRCALPHA) == SDL_SRCALPHA ) { | |
| 1122 if ( ! this->info.blit_hw_A ) { | |
| 1123 src->flags &= ~SDL_HWACCEL; | |
| 1124 } | |
| 1125 } | |
| 1126 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 1127 if ( ! this->info.blit_hw_CC ) { | |
| 1128 src->flags &= ~SDL_HWACCEL; | |
| 1129 } | |
| 1130 } | |
| 1131 | |
| 1132 /* Check to see if final surface blit is accelerated */ | |
| 1133 accelerated = !!(src->flags & SDL_HWACCEL); | |
| 1134 if ( accelerated ) { | |
| 1135 src->map->hw_blit = DSp_HWAccelBlit; | |
| 1136 } | |
| 1137 return(accelerated); | |
| 1138 } | |
| 1139 | |
| 1140 static int DSp_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 1141 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 1142 { | |
| 1143 CGrafPtr save_port; | |
| 1144 GDHandle save_device; | |
| 1145 Rect src_rect, dst_rect; | |
| 1146 RGBColor black = { 0, 0, 0 }; | |
| 1147 RGBColor white = { 0xFFFF, 0xFFFF, 0xFFFF }; | |
| 1148 | |
| 1149 #ifdef DSP_TRY_CC_AND_AA | |
| 1150 UInt32 mode; | |
| 1151 #endif | |
| 1152 | |
| 1153 SetRect (&src_rect, srcrect->x, srcrect->y, srcrect->x + srcrect->w, srcrect->y + srcrect->h); | |
| 1154 SetRect (&dst_rect, dstrect->x, dstrect->y, dstrect->x + dstrect->w, dstrect->y + dstrect->h); | |
| 1155 | |
| 1156 GetGWorld (&save_port, &save_device); | |
| 1157 SetGWorld (dst->hwdata->offscreen, NULL); | |
| 1158 | |
| 1159 RGBForeColor (&black); | |
| 1160 RGBBackColor (&white); | |
| 1161 | |
| 1162 #ifdef DSP_TRY_CC_AND_AA | |
| 1163 | |
| 1164 if ( (src->flags & SDL_SRCCOLORKEY) && | |
| 1165 (src->flags & SDL_SRCALPHA) ) { | |
| 1166 | |
| 1167 OpColor (&(src->hwdata->alpha)); | |
| 1168 | |
| 1169 CopyDeepMask ( GetPortBitMapForCopyBits(src->hwdata->offscreen), | |
| 1170 GetPortBitMapForCopyBits(src->hwdata->mask), | |
| 1171 GetPortBitMapForCopyBits(dst->hwdata->offscreen), | |
| 1172 &src_rect, &src_rect, &dst_rect, | |
| 1173 blend, | |
| 1174 NULL ); | |
| 1175 } | |
| 1176 else { | |
| 1177 | |
| 1178 if ( src->flags & SDL_SRCCOLORKEY) { | |
| 1179 RGBBackColor (&(src->hwdata->trans) ); | |
| 1180 mode = transparent; | |
| 1181 } | |
| 1182 else if (src->flags & SDL_SRCALPHA) { | |
| 1183 | |
| 1184 OpColor (&(src->hwdata->alpha)); | |
| 1185 mode = blend; | |
| 1186 } | |
| 1187 else { | |
| 1188 | |
| 1189 mode = srcCopy; | |
| 1190 } | |
| 1191 | |
| 1192 CopyBits ( GetPortBitMapForCopyBits(src->hwdata->offscreen), | |
| 1193 GetPortBitMapForCopyBits(dst->hwdata->offscreen), | |
| 1194 &src_rect, &dst_rect, mode, NULL ); | |
| 1195 } | |
| 1196 #else | |
| 1197 | |
| 1198 CopyBits ( &(((GrafPtr)(src->hwdata->offscreen))->portBits), | |
| 1199 &(((GrafPtr)(dst->hwdata->offscreen))->portBits), | |
| 1200 &src_rect, &dst_rect, srcCopy, NULL ); | |
| 1201 | |
| 1202 #endif /* DSP_TRY_CC_AND_AA */ | |
| 1203 | |
| 1204 SetGWorld (save_port, save_device); | |
| 1205 | |
| 1206 return(0); | |
| 1207 } | |
| 1208 | |
| 1209 static int DSp_FillHWRect(_THIS, SDL_Surface *dst, SDL_Rect *rect, Uint32 color) | |
| 1210 { | |
| 1211 CGrafPtr save_port; | |
| 1212 GDHandle save_device; | |
| 1213 Rect fill_rect; | |
| 1214 RGBColor rgb; | |
| 1215 | |
| 1216 SetRect (&fill_rect, rect->x, rect->y, rect->x + rect->w, rect->y + rect->h); | |
| 1217 | |
| 1218 GetGWorld (&save_port, &save_device); | |
| 1219 SetGWorld (dst->hwdata->offscreen, NULL); | |
| 1220 | |
| 1221 Index2Color (color, &rgb); | |
| 1222 | |
| 1223 RGBForeColor (&rgb); | |
| 1224 PaintRect (&fill_rect); | |
| 1225 | |
| 1226 SetGWorld (save_port, save_device); | |
| 1227 | |
| 1228 return(0); | |
| 1229 } | |
| 1230 | |
| 1231 static int DSp_FlipHWSurface(_THIS, SDL_Surface *surface) | |
| 1232 { | |
| 1233 if ( (surface->flags & SDL_HWSURFACE) ) { | |
| 1234 CGrafPtr dsp_front_buffer, save_port; | |
| 1235 Rect rect; | |
| 1236 | |
|
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1237 #if ! TARGET_API_MAC_OSX |
| 0 | 1238 unsigned int old_count; |
|
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1239 #endif |
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1240 |
| 0 | 1241 /* pseudo page flipping for VRAM back buffer*/ |
| 1242 DSpContext_GetFrontBuffer (dsp_context, &dsp_front_buffer); | |
| 1243 SetRect (&rect, 0, 0, surface->w-1, surface->h-1); | |
| 1244 | |
| 1245 GetPort ((GrafPtr *)&save_port); | |
| 1246 SetPort ((GrafPtr)dsp_front_buffer); | |
| 1247 | |
| 1248 /* wait for retrace */ | |
| 1249 /* I have tried doing the swap in interrupt routine (VBL Proc) to do */ | |
| 1250 /* it asynchronously, but apparently CopyBits isn't interrupt safe */ | |
| 1251 | |
| 1252 #if ! TARGET_API_MAC_OSX | |
| 1253 #ifndef DSP_NO_SYNC_VBL | |
| 1254 old_count = retrace_count; | |
| 1255 while (old_count == retrace_count) | |
| 1256 ; | |
| 1257 #endif | |
| 1258 #endif | |
| 1259 | |
| 1260 CopyBits ( GetPortBitMapForCopyBits(dsp_back_buffer), | |
| 1261 GetPortBitMapForCopyBits(dsp_front_buffer), | |
| 1262 &rect, &rect, srcCopy, NULL ); | |
| 1263 | |
| 1264 SetPort ((GrafPtr)save_port); | |
| 1265 | |
| 1266 } else { | |
| 1267 /* not really page flipping at all: DSp just blits the dirty rectangles from DSp_UpdateRects */ | |
| 1268 Boolean busy_flag; | |
| 1269 DSpContext_SwapBuffers (dsp_context, NULL, &busy_flag); /* this waits for VBL */ | |
| 1270 DSpContext_GetBackBuffer (dsp_context, kDSpBufferKind_Normal, &dsp_back_buffer); | |
| 1271 surface->pixels = GetPixBaseAddr( GetPortPixMap(dsp_back_buffer) ); | |
| 1272 } | |
| 1273 return(0); | |
| 1274 } | |
| 1275 | |
| 1276 static int DSp_LockHWSurface(_THIS, SDL_Surface *surface) | |
| 1277 { | |
| 1278 if ( LockPixels (GetGWorldPixMap (surface->hwdata->offscreen)) ) | |
| 1279 return 0; | |
| 1280 else | |
| 1281 return -1; | |
| 1282 } | |
| 1283 | |
| 1284 static void DSp_UnlockHWSurface(_THIS, SDL_Surface *surface) | |
| 1285 { | |
| 1286 UnlockPixels (GetGWorldPixMap (surface->hwdata->offscreen)); | |
| 1287 } | |
| 1288 | |
| 1289 static void DSp_DirectUpdate(_THIS, int numrects, SDL_Rect *sdl_rects) | |
| 1290 { | |
| 1291 return; | |
| 1292 } | |
| 1293 | |
| 1294 static void DSp_DSpUpdate(_THIS, int numrects, SDL_Rect *sdl_rects) | |
| 1295 { | |
| 1296 #if ! TARGET_API_MAC_OSX /* Unsupported DSp in here */ | |
| 1297 int i; | |
| 1298 Rect rect; | |
| 1299 | |
| 1300 for (i = 0; i < numrects; i++) { | |
| 1301 | |
| 1302 rect.top = sdl_rects[i].y; | |
| 1303 rect.left = sdl_rects[i].x; | |
| 1304 rect.bottom = sdl_rects[i].h + sdl_rects[i].y; | |
| 1305 rect.right = sdl_rects[i].w + sdl_rects[i].x; | |
| 1306 | |
| 1307 DSpContext_InvalBackBufferRect (dsp_context, &rect); | |
| 1308 } | |
| 1309 #endif | |
| 1310 } | |
| 1311 | |
| 1312 static int DSp_CreatePalette(_THIS) { | |
| 1313 | |
| 1314 | |
| 1315 /* Create our palette */ | |
| 1316 SDL_CTab = (CTabHandle)NewHandle(sizeof(ColorSpec)*256 + 8); | |
| 1317 if ( SDL_CTab == nil ) { | |
| 1318 SDL_OutOfMemory(); | |
| 1319 return(-1); | |
| 1320 } | |
| 1321 (**SDL_CTab).ctSeed = GetCTSeed(); | |
| 1322 (**SDL_CTab).ctFlags = 0; | |
| 1323 (**SDL_CTab).ctSize = 255; | |
| 1324 CTabChanged(SDL_CTab); | |
| 1325 SDL_CPal = NewPalette(256, SDL_CTab, pmExplicit+pmTolerant, 0); | |
| 1326 | |
| 1327 return 0; | |
| 1328 } | |
| 1329 | |
| 1330 static int DSp_DestroyPalette(_THIS) { | |
| 1331 | |
| 1332 /* Free palette and restore original one */ | |
| 1333 if ( SDL_CTab != nil ) { | |
| 1334 DisposeHandle((Handle)SDL_CTab); | |
| 1335 SDL_CTab = nil; | |
| 1336 } | |
| 1337 if ( SDL_CPal != nil ) { | |
| 1338 DisposePalette(SDL_CPal); | |
| 1339 SDL_CPal = nil; | |
| 1340 } | |
| 1341 RestoreDeviceClut(SDL_Display); | |
| 1342 | |
| 1343 return (0); | |
| 1344 } | |
| 1345 | |
| 1346 static int DSp_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors) | |
| 1347 { | |
| 1348 CTabHandle cTab; | |
| 1349 | |
| 1350 int i; | |
| 1351 | |
| 1352 cTab = SDL_CTab; | |
| 1353 | |
| 1354 /* Verify the range of colors */ | |
| 1355 if ( (firstcolor+ncolors) > ((**cTab).ctSize+1) ) { | |
| 1356 return(0); | |
| 1357 } | |
| 1358 | |
| 1359 /* Set the screen palette and update the display */ | |
| 1360 for(i = 0; i < ncolors; i++) { | |
| 1361 int j = firstcolor + i; | |
| 1362 (**cTab).ctTable[j].value = j; | |
| 1363 (**cTab).ctTable[j].rgb.red = colors[i].r << 8 | colors[i].r; | |
| 1364 (**cTab).ctTable[j].rgb.green = colors[i].g << 8 | colors[i].g; | |
| 1365 (**cTab).ctTable[j].rgb.blue = colors[i].b << 8 | colors[i].b; | |
| 1366 } | |
| 1367 | |
| 1368 SetGDevice(SDL_Display); | |
| 1369 SetEntries(0, (**cTab).ctSize, (ColorSpec *)&(**cTab).ctTable); | |
| 1370 | |
| 1371 return(1); | |
| 1372 } | |
| 1373 | |
| 1374 void DSp_VideoQuit(_THIS) | |
| 1375 { | |
| 1376 int i; | |
| 1377 | |
| 1378 /* Free current video mode */ | |
| 1379 DSp_UnsetVideoMode(this, this->screen); | |
| 1380 | |
| 1381 /* Free Palette and restore original */ | |
| 1382 DSp_DestroyPalette (this); | |
| 1383 | |
| 1384 /* Free list of video modes */ | |
| 1385 if ( SDL_modelist != NULL ) { | |
| 1386 for ( i=0; SDL_modelist[i]; i++ ) { | |
|
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1387 SDL_free(SDL_modelist[i]); |
| 0 | 1388 } |
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1389 SDL_free(SDL_modelist); |
| 0 | 1390 SDL_modelist = NULL; |
| 1391 } | |
| 1392 | |
| 1393 /* Unload DrawSprocket */ | |
| 1394 DSpShutdown (); | |
| 1395 } | |
| 1396 | |
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1397 #if SDL_VIDEO_OPENGL |
| 0 | 1398 |
| 1399 /* swap buffers with v-sync */ | |
| 1400 static void DSp_GL_SwapBuffers (_THIS) { | |
| 1401 | |
| 1402 #ifndef DSP_NO_SYNC_OPENGL | |
| 1403 | |
| 1404 unsigned int old_count; | |
| 1405 | |
| 1406 old_count = retrace_count; | |
| 1407 while (old_count == retrace_count) | |
| 1408 ; | |
| 1409 #endif | |
| 1410 | |
| 1411 aglSwapBuffers (glContext); | |
| 1412 } | |
| 1413 | |
| 1414 #endif |