Mercurial > sdl-ios-xcode
annotate WhatsNew @ 615:7ec821f3cbd0
Date: Thu, 17 Apr 2003 23:27:34 -0400
From: Darrell Walisser
Subject: Yet another OS X cursor bug
The synopsis:
1. Call SDL_ShowCursor(0);
2. Call SDL_SetVideoMode();
3. Call SDL_GetEvent();
3. Call SDL_ShowCursor(1);
The result: Sometimes the cursor doesn't come back! Ack! Oddly enough,
it does come back when mousing over the dock or clicking in the menu
bar. But that's besides the point.
The reason why this is happening is a flaw in the handling of
activation/deactivation events. The short explanation is that the
HideCursor() and ShowCursor() calls must be balanced, but if the cursor
was initially hidden, HideCursor() was called again on the activate
event - so now the next ShowCursor() fails (as does the next, and the
next, for some reason).
So, here's the patch. All it does is keep track of the
HideCursor()/ShowCursor() calls so that they will always be balanced.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 20 Apr 2003 05:41:16 +0000 |
| parents | 24edec3cafe4 |
| children | 12a21d82a060 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 This is a list of API changes in SDL's version history. | |
| 3 | |
| 4 Version 1.0: | |
| 5 | |
|
451
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
6 1.2.5: |
|
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
7 Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5) |
|
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
8 |
|
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
9 Added SDL_GL_STEREO for stereoscopic OpenGL contexts |
|
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
10 |
| 0 | 11 1.2.0: |
| 12 Added SDL_VIDEOEXPOSE event to signal that the screen needs to | |
| 13 be redrawn. This is currently only delivered to OpenGL windows | |
| 14 on X11, though it may be delivered in the future when the video | |
| 15 memory is lost under DirectX. | |
| 16 | |
| 17 1.1.8: | |
| 18 You can pass SDL_NOFRAME to SDL_VideoMode() to create a window | |
| 19 that has no title bar or frame decoration. Fullscreen video | |
| 20 modes automatically have this flag set. | |
| 21 | |
| 22 Added a function to query the clipping rectangle for a surface: | |
| 23 void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect) | |
| 24 | |
| 25 Added a function to query the current event filter: | |
| 26 SDL_EventFilter SDL_GetEventFilter(void) | |
| 27 | |
| 28 If you pass -1 to SDL_ShowCursor(), it won't change the current | |
| 29 cursor visibility state, but will still return it. | |
| 30 | |
| 31 SDL_LockSurface() and SDL_UnlockSurface() are recursive, meaning | |
| 32 you can nest them as deep as you want, as long as each lock call | |
| 33 has a matching unlock call. The surface remains locked until the | |
| 34 last matching unlock call. | |
| 35 | |
| 36 Note that you may not blit to or from a locked surface. | |
| 37 | |
| 38 1.1.7: | |
| 39 The SDL_SetGammaRamp() and SDL_GetGammaRamp() functions now take | |
| 40 arrays of Uint16 values instead of Uint8 values. For the most part, | |
| 41 you can just take your old values and shift them up 8 bits to get | |
| 42 new correct values for your gamma ramps. | |
| 43 | |
| 44 You can pass SDL_RLEACCEL in flags passed to SDL_ConvertSurface() | |
| 45 and SDL will try to RLE accelerate colorkey and alpha blits in the | |
| 46 resulting surface. | |
| 47 | |
| 48 1.1.6: | |
| 49 Added a function to return the thread ID of a specific thread: | |
| 50 Uint32 SDL_GetThreadID(SDL_Thread *thread) | |
| 51 If 'thread' is NULL, this function returns the id for this thread. | |
| 52 | |
| 53 1.1.5: | |
| 54 The YUV overlay structure has been changed to use an array of | |
| 55 pitches and pixels representing the planes of a YUV image, to | |
| 56 better enable hardware acceleration. The YV12 and IYUV formats | |
| 57 each have three planes, corresponding to the Y, U, and V portions | |
| 58 of the image, while packed pixel YUV formats just have one plane. | |
| 59 | |
| 60 For palettized mode (8bpp), the screen colormap is now split in | |
| 61 a physical and a logical palette. The physical palette determines | |
| 62 what colours the screen pixels will get when displayed, and the | |
| 63 logical palette controls the mapping from blits to/from the screen. | |
| 64 A new function, SDL_SetPalette() has been added to change | |
| 65 logical and physical palettes separately. SDL_SetColors() works | |
| 66 just as before, and is equivalent to calling SDL_SetPalette() with | |
| 67 a flag argument of (SDL_LOGPAL|SDL_PHYSPAL). | |
| 68 | |
| 69 SDL_BlitSurface() no longer modifies the source rectangle, only the | |
| 70 destination rectangle. The width/height members of the destination | |
| 71 rectangle are ignored, only the position is used. | |
| 72 | |
| 73 The old source clipping function SDL_SetClipping() has been replaced | |
| 74 with a more useful function to set the destination clipping rectangle: | |
| 75 SDL_bool SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect) | |
| 76 | |
| 77 Added a function to see what subsystems have been initialized: | |
| 78 Uint32 SDL_WasInit(Uint32 flags) | |
| 79 | |
| 80 The Big Alpha Flip: SDL now treats alpha as opacity like everybody | |
| 81 else, and not as transparency: | |
| 82 | |
| 83 A new cpp symbol: SDL_ALPHA_OPAQUE is defined as 255 | |
| 84 A new cpp symbol: SDL_ALPHA_TRANSPARENT is defined as 0 | |
| 85 Values between 0 and 255 vary from fully transparent to fully opaque. | |
| 86 | |
| 87 New functions: | |
| 88 SDL_DisplayFormatAlpha() | |
| 89 Returns a surface converted to a format with alpha-channel | |
| 90 that can be blit efficiently to the screen. (In other words, | |
| 91 like SDL_DisplayFormat() but the resulting surface has | |
| 92 an alpha channel.) This is useful for surfaces with alpha. | |
| 93 SDL_MapRGBA() | |
| 94 Works as SDL_MapRGB() but takes an additional alpha parameter. | |
| 95 SDL_GetRGBA() | |
| 96 Works as SDL_GetRGB() but also returns the alpha value | |
| 97 (SDL_ALPHA_OPAQUE for formats without an alpha channel) | |
| 98 | |
| 99 Both SDL_GetRGB() and SDL_GetRGBA() now always return values in | |
| 100 the [0..255] interval. Previously, SDL_GetRGB() would return | |
| 101 (0xf8, 0xfc, 0xf8) for a completely white pixel in RGB565 format. | |
| 102 (N.B.: This is broken for bit fields < 3 bits.) | |
| 103 | |
| 104 SDL_MapRGB() returns pixels in which the alpha channel is set opaque. | |
| 105 | |
| 106 SDL_SetAlpha() can now be used for both setting the per-surface | |
| 107 alpha, using the new way of thinking of alpha, and also to enable | |
| 108 and disable per-pixel alpha blending for surfaces with an alpha | |
| 109 channel: | |
| 110 To disable alpha blending: | |
| 111 SDL_SetAlpha(surface, 0, 0); | |
| 112 To re-enable alpha blending: | |
| 113 SDL_SetAlpha(surface, SDL_SRCALPHA, 0); | |
| 114 Surfaces with an alpha channel have blending enabled by default. | |
| 115 | |
| 116 SDL_SetAlpha() now accepts SDL_RLEACCEL as a flag, which requests | |
| 117 RLE acceleration of blits, just as like with SDL_SetColorKey(). | |
| 118 This flag can be set for both surfaces with an alpha channel | |
| 119 and surfaces with an alpha value set by SDL_SetAlpha(). | |
| 120 As always, RLE surfaces must be locked before pixel access is | |
| 121 allowed, and unlocked before any other SDL operations are done | |
| 122 on it. | |
| 123 | |
| 124 The blit semantics for surfaces with and without alpha and colorkey | |
| 125 have now been defined: | |
| 126 | |
| 127 RGBA->RGB: | |
| 128 SDL_SRCALPHA set: | |
| 129 alpha-blend (using alpha-channel). | |
| 130 SDL_SRCCOLORKEY ignored. | |
| 131 SDL_SRCALPHA not set: | |
| 132 copy RGB. | |
| 133 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 134 RGB values of the source colour key, ignoring alpha in the | |
| 135 comparison. | |
| 136 | |
| 137 RGB->RGBA: | |
| 138 SDL_SRCALPHA set: | |
| 139 alpha-blend (using the source per-surface alpha value); | |
| 140 set destination alpha to opaque. | |
| 141 SDL_SRCALPHA not set: | |
| 142 copy RGB, set destination alpha to opaque. | |
| 143 both: | |
| 144 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 145 source colour key. | |
| 146 | |
| 147 RGBA->RGBA: | |
| 148 SDL_SRCALPHA set: | |
| 149 alpha-blend (using the source alpha channel) the RGB values; | |
| 150 leave destination alpha untouched. [Note: is this correct?] | |
| 151 SDL_SRCCOLORKEY ignored. | |
| 152 SDL_SRCALPHA not set: | |
| 153 copy all of RGBA to the destination. | |
| 154 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 155 RGB values of the source colour key, ignoring alpha in the | |
| 156 comparison. | |
| 157 | |
| 158 RGB->RGB: | |
| 159 SDL_SRCALPHA set: | |
| 160 alpha-blend (using the source per-surface alpha value). | |
| 161 SDL_SRCALPHA not set: | |
| 162 copy RGB. | |
| 163 both: | |
| 164 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 165 source colour key. | |
| 166 | |
| 167 As a special case, blits from surfaces with per-surface alpha | |
| 168 value of 128 (50% transparency) are optimised and much faster | |
| 169 than other alpha values. This does not apply to surfaces with | |
| 170 alpha channels (per-pixel alpha). | |
| 171 | |
| 172 New functions for manipulating the gamma of the display have | |
| 173 been added: | |
| 174 int SDL_SetGamma(float red, float green, float blue); | |
| 175 int SDL_SetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue); | |
| 176 int SDL_GetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue); | |
| 177 Gamma ramps are tables with 256 entries which map the screen color | |
| 178 components into actually displayed colors. For an example of | |
| 179 implementing gamma correction and gamma fades, see test/testgamma.c | |
| 180 Gamma control is not supported on all hardware. | |
| 181 | |
| 182 1.1.4: | |
| 183 The size of the SDL_CDtrack structure changed from 8 to 12 bytes | |
| 184 as the size of the length member was extended to 32 bits. | |
| 185 | |
| 186 You can now use SDL for 2D blitting with a GL mode by passing the | |
| 187 SDL_OPENGLBLIT flag to SDL_SetVideoMode(). You can specify 16 or | |
| 188 32 bpp, and the data in the framebuffer is put into the GL scene | |
| 189 when you call SDL_UpdateRects(), and the scene will be visible | |
| 190 when you call SDL_GL_SwapBuffers(). | |
| 191 | |
| 192 Run the "testgl" test program with the -logo command line option | |
| 193 to see an example of this blending of 2D and 3D in SDL. | |
| 194 | |
| 195 1.1.3: | |
| 196 Added SDL_FreeRW() to the API, to complement SDL_AllocRW() | |
| 197 | |
| 198 Added resizable window support - just add SDL_RESIZABLE to the | |
| 199 SDL_SetVideoMode() flags, and then wait for SDL_VIDEORESIZE events. | |
| 200 See SDL_events.h for details on the new SDL_ResizeEvent structure. | |
| 201 | |
| 202 Added condition variable support, based on mutexes and semaphores. | |
| 203 SDL_CreateCond() | |
| 204 SDL_DestroyCond() | |
| 205 SDL_CondSignal() | |
| 206 SDL_CondBroadcast() | |
| 207 SDL_CondWait() | |
| 208 SDL_CondTimedWait() | |
| 209 The new function prototypes are in SDL_mutex.h | |
| 210 | |
| 211 Added counting semaphore support, based on the mutex primitive. | |
| 212 SDL_CreateSemaphore() | |
| 213 SDL_DestroySemaphore() | |
| 214 SDL_SemWait() | |
| 215 SDL_SemTryWait() | |
| 216 SDL_SemWaitTimeout() | |
| 217 SDL_SemPost() | |
| 218 SDL_SemValue() | |
| 219 The new function prototypes are in SDL_mutex.h | |
| 220 | |
| 221 Added support for asynchronous blitting. To take advantage of this, | |
| 222 you must set the SDL_ASYNCBLIT flag when setting the video mode and | |
| 223 creating surfaces that you want accelerated in this way. You must | |
| 224 lock surfaces that have this flag set, and the lock will block until | |
| 225 any queued blits have completed. | |
| 226 | |
| 227 Added YUV video overlay support. | |
| 228 The supported YUV formats are: YV12, IYUV, YUY2, UYVY, and YVYU. | |
| 229 This function creates an overlay surface: | |
| 230 SDL_CreateYUVOverlay() | |
| 231 You must lock and unlock the overlay to get access to the data: | |
| 232 SDL_LockYUVOverlay() SDL_UnlockYUVOverlay() | |
| 233 You can then display the overlay: | |
| 234 SDL_DisplayYUVOverlay() | |
| 235 You must free the overlay when you are done using it: | |
| 236 SDL_FreeYUVOverlay() | |
| 237 See SDL_video.h for the full function prototypes. | |
| 238 | |
| 239 The joystick hat position constants have been changed: | |
| 240 Old constant New constant | |
| 241 ------------ ------------ | |
| 242 0 SDL_HAT_CENTERED | |
| 243 1 SDL_HAT_UP | |
| 244 2 SDL_HAT_RIGHTUP | |
| 245 3 SDL_HAT_RIGHT | |
| 246 4 SDL_HAT_RIGHTDOWN | |
| 247 5 SDL_HAT_DOWN | |
| 248 6 SDL_HAT_LEFTDOWN | |
| 249 7 SDL_HAT_LEFT | |
| 250 8 SDL_HAT_LEFTUP | |
| 251 The new constants are bitmasks, so you can check for the | |
| 252 individual axes like this: | |
| 253 if ( hat_position & SDL_HAT_UP ) { | |
| 254 } | |
| 255 and you'll catch left-up, up, and right-up. | |
| 256 | |
| 257 1.1.2: | |
| 258 Added multiple timer support: | |
| 259 SDL_AddTimer() and SDL_RemoveTimer() | |
| 260 | |
| 261 SDL_WM_SetIcon() now respects the icon colorkey if mask is NULL. | |
| 262 | |
| 263 1.1.0: | |
| 264 Added initial OpenGL support. | |
| 265 First set GL attributes (such as RGB depth, alpha depth, etc.) | |
| 266 SDL_GL_SetAttribute() | |
| 267 Then call SDL_SetVideoMode() with the SDL_OPENGL flag. | |
| 268 Perform all of your normal GL drawing. | |
| 269 Finally swap the buffers with the new SDL function: | |
| 270 SDL_GL_SwapBuffers() | |
| 271 See the new 'testgl' test program for an example of using GL with SDL. | |
| 272 | |
| 273 You can load GL extension functions by using the function: | |
| 274 SDL_GL_LoadProcAddress() | |
| 275 | |
| 276 Added functions to initialize and cleanup specific SDL subsystems: | |
| 277 SDL_InitSubSystem() and SDL_QuitSubSystem() | |
| 278 | |
| 279 Added user-defined event type: | |
| 280 typedef struct { | |
| 281 Uint8 type; | |
| 282 int code; | |
| 283 void *data1; | |
| 284 void *data2; | |
| 285 } SDL_UserEvent; | |
| 286 This structure is in the "user" member of an SDL_Event. | |
| 287 | |
| 288 Added a function to push events into the event queue: | |
| 289 SDL_PushEvent() | |
| 290 | |
| 291 Example of using the new SDL user-defined events: | |
| 292 { | |
| 293 SDL_Event event; | |
| 294 | |
| 295 event.type = SDL_USEREVENT; | |
| 296 event.user.code = my_event_code; | |
| 297 event.user.data1 = significant_data; | |
| 298 event.user.data2 = 0; | |
| 299 SDL_PushEvent(&event); | |
| 300 } | |
| 301 | |
| 302 Added a function to get mouse deltas since last query: | |
| 303 SDL_GetRelativeMouseState() | |
| 304 | |
| 305 Added a boolean datatype to SDL_types.h: | |
| 306 SDL_bool = { SDL_TRUE, SDL_FALSE } | |
| 307 | |
| 308 Added a function to get the current audio status: | |
| 309 SDL_GetAudioState(); | |
| 310 It returns one of: | |
| 311 SDL_AUDIO_STOPPED, | |
| 312 SDL_AUDIO_PLAYING, | |
| 313 SDL_AUDIO_PAUSED | |
| 314 | |
| 315 Added an AAlib driver (ASCII Art) - by Stephane Peter. | |
| 316 | |
| 317 1.0.6: | |
| 318 The input grab state is reset after each call to SDL_SetVideoMode(). | |
| 319 The input is grabbed by default in fullscreen mode, and ungrabbed in | |
| 320 windowed mode. If you want to set input grab to a particular value, | |
| 321 you should set it after each call to SDL_SetVideoMode(). | |
| 322 | |
| 323 1.0.5: | |
| 324 Exposed SDL_AudioInit(), SDL_VideoInit() | |
| 325 Added SDL_AudioDriverName() and SDL_VideoDriverName() | |
| 326 | |
| 327 Added new window manager function: | |
| 328 SDL_WM_ToggleFullScreen() | |
| 329 This is currently implemented only on Linux | |
| 330 | |
| 331 The ALT-ENTER code has been removed - it's not appropriate for a | |
| 332 lib to bind keys when they aren't even emergency escape sequences. | |
| 333 | |
| 334 ALT-ENTER functionality can be implemented with the following code: | |
| 335 | |
| 336 int Handle_AltEnter(const SDL_Event *event) | |
| 337 { | |
| 338 if ( event->type == SDL_KEYDOWN ) { | |
| 339 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
| 340 (event->key.keysym.mod & KMOD_ALT) ) { | |
| 341 SDL_WM_ToggleFullScreen(SDL_GetVideoSurface()); | |
| 342 return(0); | |
| 343 } | |
| 344 } | |
| 345 return(1); | |
| 346 } | |
| 347 SDL_SetEventFilter(Handle_AltEnter); | |
| 348 | |
| 349 1.0.3: | |
| 350 Under X11, if you grab the input and hide the mouse cursor, | |
| 351 the mouse will go into a "relative motion" mode where you | |
| 352 will always get relative motion events no matter how far in | |
| 353 each direction you move the mouse - relative motion is not | |
| 354 bounded by the edges of the window (though the absolute values | |
| 355 of the mouse positions are clamped by the size of the window). | |
| 356 The SVGAlib, framebuffer console, and DirectInput drivers all | |
| 357 have this behavior naturally, and the GDI and BWindow drivers | |
| 358 never go into "relative motion" mode. | |
| 359 | |
| 360 1.0.2: | |
| 361 Added a function to enable keyboard repeat: | |
| 362 SDL_EnableKeyRepeat() | |
| 363 | |
| 364 Added a function to grab the mouse and keyboard input | |
| 365 SDL_WM_GrabInput() | |
| 366 | |
| 367 Added a function to iconify the window. | |
| 368 SDL_WM_IconifyWindow() | |
| 369 If this function succeeds, the application will receive an event | |
| 370 signaling SDL_APPACTIVE event | |
| 371 | |
| 372 1.0.1: | |
| 373 Added constants to SDL_audio.h for 16-bit native byte ordering: | |
| 374 AUDIO_U16SYS, AUDIO_S16SYS | |
| 375 | |
| 376 1.0.0: | |
| 377 New public release | |
| 378 | |
| 379 Version 0.11: | |
| 380 | |
| 381 0.11.5: | |
| 382 A new function SDL_GetVideoSurface() has been added, and returns | |
| 383 a pointer to the current display surface. | |
| 384 | |
| 385 SDL_AllocSurface() has been renamed SDL_CreateRGBSurface(), and | |
| 386 a new function SDL_CreateRGBSurfaceFrom() has been added to allow | |
| 387 creating an SDL surface from an existing pixel data buffer. | |
| 388 | |
| 389 Added SDL_GetRGB() to the headers and documentation. | |
| 390 | |
| 391 0.11.4: | |
| 392 SDL_SetLibraryPath() is no longer meaningful, and has been removed. | |
| 393 | |
| 394 0.11.3: | |
| 395 A new flag for SDL_Init(), SDL_INIT_NOPARACHUTE, prevents SDL from | |
| 396 installing fatal signal handlers on operating systems that support | |
| 397 them. | |
| 398 | |
| 399 Version 0.9: | |
| 400 | |
| 401 0.9.15: | |
| 402 SDL_CreateColorCursor() has been removed. Color cursors should | |
| 403 be implemented as sprites, blitted by the application when the | |
| 404 cursor moves. To get smooth color cursor updates when the app | |
| 405 is busy, pass the SDL_INIT_EVENTTHREAD flag to SDL_Init(). This | |
| 406 allows you to handle the mouse motion in another thread from an | |
| 407 event filter function, but is currently only supported by Linux | |
| 408 and BeOS. Note that you'll have to protect the display surface | |
| 409 from multi-threaded access by using mutexes if you do this. | |
| 410 | |
| 411 Thread-safe surface support has been removed from SDL. | |
| 412 This makes blitting somewhat faster, by removing SDL_MiddleBlit(). | |
| 413 Code that used SDL_MiddleBlit() should use SDL_LowerBlit() instead. | |
| 414 You can make your surfaces thread-safe by allocating your own | |
| 415 mutex and making lock/unlock calls around accesses to your surface. | |
| 416 | |
| 417 0.9.14: | |
| 418 SDL_GetMouseState() now takes pointers to int rather than Uint16. | |
| 419 | |
| 420 If you set the SDL_WINDOWID environment variable under UNIX X11, | |
| 421 SDL will use that as the main window instead of creating it's own. | |
| 422 This is an unsupported extension to SDL, and not portable at all. | |
| 423 | |
| 424 0.9.13: | |
| 425 Added a function SDL_SetLibraryPath() which can be used to specify | |
| 426 the directory containing the SDL dynamic libraries. This is useful | |
| 427 for commercial applications which ship with particular versions | |
| 428 of the libraries, and for security on multi-user systems. | |
| 429 If this function is not used, the default system directories are | |
| 430 searched using the native dynamic object loading mechanism. | |
| 431 | |
| 432 In order to support C linkage under Visual C++, you must declare | |
| 433 main() without any return type: | |
| 434 main(int argc, char *argv[]) { | |
| 435 /* Do the program... */ | |
| 436 return(0); | |
| 437 } | |
| 438 C++ programs should also return a value if compiled under VC++. | |
| 439 | |
| 440 The blit_endian member of the SDL_VideoInfo struct has been removed. | |
| 441 | |
| 442 SDL_SymToASCII() has been replaced with SDL_GetKeyName(), so there | |
| 443 is now no longer any function to translate a keysym to a character. | |
| 444 | |
| 445 The SDL_keysym structure has been extended with a 'scancode' and | |
| 446 'unicode' member. The 'scancode' is a hardware specific scancode | |
| 447 for the key that was pressed, and may be 0. The 'unicode' member | |
| 448 is a 16-bit UNICODE translation of the key that was pressed along | |
| 449 with any modifiers or compose keys that have been pressed. | |
| 450 If no UNICODE translation exists for the key, 'unicode' will be 0. | |
| 451 | |
| 452 Added a function SDL_EnableUNICODE() to enable/disable UNICODE | |
| 453 translation of character keypresses. Translation defaults off. | |
| 454 | |
| 455 To convert existing code to use the new API, change code which | |
| 456 uses SDL_SymToASCII() to get the keyname to use SDL_GetKeyName(), | |
| 457 and change code which uses it to get the ASCII value of a sym to | |
| 458 use the 'unicode' member of the event keysym. | |
| 459 | |
| 460 0.9.12: | |
| 461 There is partial support for 64-bit datatypes. I don't recommend | |
| 462 you use this if you have a choice, because 64-bit datatypes are not | |
| 463 supported on many platforms. On platforms for which it is supported, | |
| 464 the SDL_HAS_64BIT_TYPE C preprocessor define will be enabled, and | |
| 465 you can use the Uint64 and Sint64 datatypes. | |
| 466 | |
| 467 Added functions to SDL_endian.h to support 64-bit datatypes: | |
| 468 SDL_SwapLE64(), SDL_SwapBE64(), | |
| 469 SDL_ReadLE64(), SDL_ReadBE64(), SDL_WriteLE64(), SDL_WriteBE64() | |
| 470 | |
| 471 A new member "len_ratio" has been added to the SDL_AudioCVT structure, | |
| 472 and allows you to determine either the original buffer length or the | |
| 473 converted buffer length, given the other. | |
| 474 | |
| 475 A new function SDL_FreeWAV() has been added to the API to free data | |
| 476 allocated by SDL_LoadWAV_RW(). This is necessary under Win32 since | |
| 477 the gcc compiled DLL uses a different heap than VC++ compiled apps. | |
| 478 | |
| 479 SDL now has initial support for international keyboards using the | |
| 480 Latin character set. | |
| 481 If a particular mapping is desired, you can set the DEFAULT_KEYBOARD | |
| 482 compile-time variable, or you can set the environment variable | |
| 483 "SDL_KEYBOARD" to a string identifying the keyboard mapping you desire. | |
| 484 The valid values for these variables can be found in SDL_keyboard.c | |
| 485 | |
| 486 Full support for German and French keyboards under X11 is implemented. | |
| 487 | |
| 488 0.9.11: | |
| 489 The THREADED_EVENTS compile-time define has been replaced with the | |
| 490 SDL_INIT_EVENTTHREAD flag. If this flag is passed to SDL_Init(), | |
| 491 SDL will create a separate thread to perform input event handling. | |
| 492 If this flag is passed to SDL_Init(), and the OS doesn't support | |
| 493 event handling in a separate thread, SDL_Init() will fail. | |
| 494 Be sure to add calls to SDL_Delay() in your main thread to allow | |
| 495 the OS to schedule your event thread, or it may starve, leading | |
| 496 to slow event delivery and/or dropped events. | |
| 497 Currently MacOS and Win32 do not support this flag, while BeOS | |
| 498 and Linux do support it. I recommend that your application only | |
| 499 use this flag if absolutely necessary. | |
| 500 | |
| 501 The SDL thread function passed to SDL_CreateThread() now returns a | |
| 502 status. This status can be retrieved by passing a non-NULL pointer | |
| 503 as the 'status' argument to SDL_WaitThread(). | |
| 504 | |
| 505 The volume parameter to SDL_MixAudio() has been increased in range | |
| 506 from (0-8) to (0-128) | |
| 507 | |
| 508 SDL now has a data source abstraction which can encompass a file, | |
| 509 an area of memory, or any custom object you can envision. It uses | |
| 510 these abstractions, SDL_RWops, in the endian read/write functions, | |
| 511 and the built-in WAV and BMP file loaders. This means you can load | |
| 512 WAV chunks from memory mapped files, compressed archives, network | |
| 513 pipes, or anything else that has a data read abstraction. | |
| 514 | |
| 515 There are three built-in data source abstractions: | |
| 516 SDL_RWFromFile(), SDL_RWFromFP(), SDL_RWFromMem() | |
| 517 along with a generic data source allocation function: | |
| 518 SDL_AllocRW() | |
| 519 These data sources can be used like stdio file pointers with the | |
| 520 following convenience functions: | |
| 521 SDL_RWseek(), SDL_RWread(), SDL_RWwrite(), SDL_RWclose() | |
| 522 These functions are defined in the new header file "SDL_rwops.h" | |
| 523 | |
| 524 The endian swapping functions have been turned into macros for speed | |
| 525 and SDL_CalculateEndian() has been removed. SDL_endian.h now defines | |
| 526 SDL_BYTEORDER as either SDL_BIG_ENDIAN or SDL_LIL_ENDIAN depending on | |
| 527 the endianness of the host system. | |
| 528 | |
| 529 The endian read/write functions now take an SDL_RWops pointer | |
| 530 instead of a stdio FILE pointer, to support the new data source | |
| 531 abstraction. | |
| 532 | |
| 533 The SDL_*LoadWAV() functions have been replaced with a single | |
| 534 SDL_LoadWAV_RW() function that takes a SDL_RWops pointer as it's | |
| 535 first parameter, and a flag whether or not to automatically | |
| 536 free it as the second parameter. SDL_LoadWAV() is a macro for | |
| 537 backward compatibility and convenience: | |
| 538 SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...); | |
| 539 | |
| 540 The SDL_*LoadBMP()/SDL_*SaveBMP() functions have each been replaced | |
| 541 with a single function that takes a SDL_RWops pointer as it's | |
| 542 first parameter, and a flag whether or not to automatically | |
| 543 free it as the second parameter. SDL_LoadBMP() and SDL_SaveBMP() | |
| 544 are macros for backward compatibility and convenience: | |
| 545 SDL_LoadBMP_RW(SDL_RWFromFile("sample.bmp", "rb"), 1, ...); | |
| 546 SDL_SaveBMP_RW(SDL_RWFromFile("sample.bmp", "wb"), 1, ...); | |
| 547 Note that these functions use SDL_RWseek() extensively, and should | |
| 548 not be used on pipes or other non-seekable data sources. | |
| 549 | |
| 550 0.9.10: | |
| 551 The Linux SDL_SysWMInfo and SDL_SysWMMsg structures have been | |
| 552 extended to support multiple types of display drivers, as well as | |
| 553 safe access to the X11 display when THREADED_EVENTS is enabled. | |
| 554 The new structures are documented in the SDL_syswm.h header file. | |
| 555 | |
| 556 Thanks to John Elliott <jce@seasip.demon.co.uk>, the UK keyboard | |
| 557 should now work properly, as well as the "Windows" keys on US | |
| 558 keyboards. | |
| 559 | |
| 560 The Linux CD-ROM code now reads the CD-ROM devices from /etc/fstab | |
| 561 instead of trying to open each block device on the system. | |
| 562 The CD must be listed in /etc/fstab as using the iso9660 filesystem. | |
| 563 | |
| 564 On Linux, if you define THREADED_EVENTS at compile time, a separate | |
| 565 thread will be spawned to gather X events asynchronously from the | |
| 566 graphics updates. This hasn't been extensively tested, but it does | |
| 567 provide a means of handling keyboard and mouse input in a separate | |
| 568 thread from the graphics thread. (This is now enabled by default.) | |
| 569 | |
| 570 A special access function SDL_PeepEvents() allows you to manipulate | |
| 571 the event queue in a thread-safe manner, including peeking at events, | |
| 572 removing events of a specified type, and adding new events of arbitrary | |
| 573 type to the queue (use the new 'user' member of the SDL_Event type). | |
| 574 | |
| 575 If you use SDL_PeepEvents() to gather events, then the main graphics | |
| 576 thread needs to call SDL_PumpEvents() periodically to drive the event | |
| 577 loop and generate input events. This is not necessary if SDL has been | |
| 578 compiled with THREADED_EVENTS defined, but doesn't hurt. | |
| 579 | |
| 580 A new function SDL_ThreadID() returns the identifier associated with | |
| 581 the current thread. | |
| 582 | |
| 583 0.9.9: | |
| 584 The AUDIO_STEREO format flag has been replaced with a new 'channels' | |
| 585 member of the SDL_AudioSpec structure. The channels are 1 for mono | |
| 586 audio, and 2 for stereo audio. In the future more channels may be | |
| 587 supported for 3D surround sound. | |
| 588 | |
| 589 The SDL_MixAudio() function now takes an additional volume parameter, | |
| 590 which should be set to SDL_MIX_MAXVOLUME for compatibility with the | |
| 591 original function. | |
| 592 | |
| 593 The CD-ROM functions which take a 'cdrom' parameter can now be | |
| 594 passed NULL, and will act on the last successfully opened CD-ROM. | |
| 595 | |
| 596 0.9.8: | |
| 597 No changes, bugfixes only. | |
| 598 | |
| 599 0.9.7: | |
| 600 No changes, bugfixes only. | |
| 601 | |
| 602 0.9.6: | |
| 603 Added a fast rectangle fill function: SDL_FillRect() | |
| 604 | |
| 605 Addition of a useful function for getting info on the video hardware: | |
| 606 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 607 This function replaces SDL_GetDisplayFormat(). | |
| 608 | |
| 609 Initial support for double-buffering: | |
| 610 Use the SDL_DOUBLEBUF flag in SDL_SetVideoMode() | |
| 611 Update the screen with a new function: SDL_Flip() | |
| 612 | |
| 613 SDL_AllocSurface() takes two new flags: | |
| 614 SDL_SRCCOLORKEY means that the surface will be used for colorkey blits | |
| 615 and if the hardware supports hardware acceleration of colorkey blits | |
| 616 between two surfaces in video memory, to place the surface in video | |
| 617 memory if possible, otherwise it will be placed in system memory. | |
| 618 SDL_SRCALPHA means that the surface will be used for alpha blits and | |
| 619 if the hardware supports hardware acceleration of alpha blits between | |
| 620 two surfaces in video memory, to place the surface in video memory | |
| 621 if possible, otherwise it will be placed in system memory. | |
| 622 SDL_HWSURFACE now means that the surface will be created with the | |
| 623 same format as the display surface, since having surfaces in video | |
| 624 memory is only useful for fast blitting to the screen, and you can't | |
| 625 blit surfaces with different surface formats in video memory. | |
| 626 | |
| 627 0.9.5: | |
| 628 You can now pass a NULL mask to SDL_WM_SetIcon(), and it will assume | |
| 629 that the icon consists of the entire image. | |
| 630 | |
| 631 SDL_LowerBlit() is back -- but don't use it on the display surface. | |
| 632 It is exactly the same as SDL_MiddleBlit(), but doesn't check for | |
| 633 thread safety. | |
| 634 | |
| 635 Added SDL_FPLoadBMP(), SDL_FPSaveBMP(), SDL_FPLoadWAV(), which take | |
| 636 a FILE pointer instead of a file name. | |
| 637 | |
| 638 Added CD-ROM audio control API: | |
| 639 SDL_CDNumDrives() | |
| 640 SDL_CDName() | |
| 641 SDL_CDOpen() | |
| 642 SDL_CDStatus() | |
| 643 SDL_CDPlayTracks() | |
| 644 SDL_CDPlay() | |
| 645 SDL_CDPause() | |
| 646 SDL_CDResume() | |
| 647 SDL_CDStop() | |
| 648 SDL_CDEject() | |
| 649 SDL_CDClose() | |
| 650 | |
| 651 0.9.4: | |
| 652 No changes, bugfixes only. | |
| 653 | |
| 654 0.9.3: | |
| 655 Mouse motion event now includes relative motion information: | |
| 656 Sint16 event->motion.xrel, Sint16 event->motion.yrel | |
| 657 | |
| 658 X11 keyrepeat handling can be disabled by defining IGNORE_X_KEYREPEAT | |
| 659 (Add -DIGNORE_X_KEYREPEAT to CFLAGS line in obj/x11Makefile) | |
| 660 | |
| 661 0.9.2: | |
| 662 No changes, bugfixes only. | |
| 663 | |
| 664 0.9.1: | |
| 665 Removed SDL_MapSurface() and SDL_UnmapSurface() -- surfaces are now | |
| 666 automatically mapped on blit. | |
| 667 | |
| 668 0.8.0: | |
| 669 SDL stable release |