Mercurial > sdl-ios-xcode
annotate WhatsNew @ 2938:2929ed239d2a
Adjusted default choice of audio driver.
If a driver can definitely see available devices, it is chosen. Otherwise,
we'll take the first driver that initializes but saw no devices...this might
be because it can't enumerate them, or there really aren't any available.
This prevents the dsp driver from hogging control when there are no /dev/dsp*
nodes (for example, on a Linux box with ALSA and no OSS emulation).
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 01 Jan 2009 07:54:58 +0000 |
| parents | c121d94672cb |
| children | 4cb778067834 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 This is a list of API changes in SDL's version history. | |
| 3 | |
|
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1794
diff
changeset
|
4 1.3.0: |
|
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1794
diff
changeset
|
5 Added SDL_GetNumVideoDrivers() and SDL_GetVideoDriver(). |
|
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1794
diff
changeset
|
6 Replaced SDL_VideoDriverName() with SDL_GetCurrentVideoDriver() |
|
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1794
diff
changeset
|
7 Added SDL_GetNumAudioDrivers() and SDL_GetAudioDriver(). |
|
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1794
diff
changeset
|
8 Replaced SDL_AudioDriverName() with SDL_GetCurrentAudioDriver() |
| 0 | 9 |
| 1507 | 10 1.2.10: |
| 1794 | 11 If SDL_OpenAudio() is passed zero for the desired format |
| 12 fields, the following environment variables will be used | |
| 13 to fill them in: | |
| 14 SDL_AUDIO_FREQUENCY | |
| 15 SDL_AUDIO_FORMAT | |
| 16 SDL_AUDIO_CHANNELS | |
| 17 SDL_AUDIO_SAMPLES | |
| 18 If an environment variable is not specified, it will be set | |
| 19 to a reasonable default value. | |
| 20 | |
| 1765 | 21 Added support for the SDL_VIDEO_FULLSCREEN_HEAD environment |
| 22 variable, currently supported on X11 Xinerama configurations. | |
| 23 | |
|
1736
3b2a92126f4d
Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents:
1545
diff
changeset
|
24 Added SDL_GL_SWAP_CONTROL to wait for vsync in OpenGL applications. |
|
3b2a92126f4d
Implemented bug #2, 117:
Sam Lantinga <slouken@libsdl.org>
parents:
1545
diff
changeset
|
25 |
| 1737 | 26 Added SDL_GL_ACCELERATED_VISUAL to guarantee hardware acceleration. |
| 27 | |
|
1545
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
28 Added current_w and current_h to the SDL_VideoInfo structure, |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
29 which is set to the desktop resolution during video intialization, |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
30 and then set to the current resolution when a video mode is set. |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
31 |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
32 SDL_SetVideoMode() now accepts 0 for width or height and will use |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
33 the current video mode (or the desktop mode if no mode has been set.) |
|
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
34 |
| 1507 | 35 Added SDL_GetKeyRepeat() |
|
1545
8d9bb0cf2c2a
Added current_w and current_h to the SDL_VideoInfo structure, which is set to the desktop resolution during video intialization, and then set to the current resolution when a video mode is set.
Sam Lantinga <slouken@libsdl.org>
parents:
1507
diff
changeset
|
36 |
| 1507 | 37 Added SDL_config.h, with defaults for various build environments. |
| 38 | |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
39 1.2.7: |
|
751
6e9505e0647f
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
739
diff
changeset
|
40 Added CPU feature detection functions to SDL_cpuinfo.h: |
|
781
67176351a1b8
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
764
diff
changeset
|
41 SDL_HasRDTSC(), SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE(), |
|
67176351a1b8
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
764
diff
changeset
|
42 SDL_HasAltiVec() |
|
764
974c0fb74bf8
Added function to create RWops from const memory: SDL_RWFromConstMem()
Sam Lantinga <slouken@libsdl.org>
parents:
751
diff
changeset
|
43 Added function to create RWops from const memory: SDL_RWFromConstMem() |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
656
diff
changeset
|
44 |
|
648
12a21d82a060
Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
Sam Lantinga <slouken@libsdl.org>
parents:
451
diff
changeset
|
45 1.2.6: |
|
12a21d82a060
Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
Sam Lantinga <slouken@libsdl.org>
parents:
451
diff
changeset
|
46 Added SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() |
|
12a21d82a060
Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
Sam Lantinga <slouken@libsdl.org>
parents:
451
diff
changeset
|
47 |
|
656
864e2d2a9a55
Merged in Ryan's multisample code for MacOS, and changed the constants to match.
Sam Lantinga <slouken@libsdl.org>
parents:
655
diff
changeset
|
48 Added SDL_GL_MULTISAMPLEBUFFERS and SDL_GL_MULTISAMPLESAMPLES for FSAA |
|
655
9c42ee1b7d77
Date: Thu, 24 Apr 2003 15:13:47 -0400
Sam Lantinga <slouken@libsdl.org>
parents:
648
diff
changeset
|
49 |
|
451
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
50 1.2.5: |
|
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
51 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
|
52 |
|
24edec3cafe4
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Sam Lantinga <slouken@libsdl.org>
parents:
296
diff
changeset
|
53 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
|
54 |
| 0 | 55 1.2.0: |
| 56 Added SDL_VIDEOEXPOSE event to signal that the screen needs to | |
| 57 be redrawn. This is currently only delivered to OpenGL windows | |
| 58 on X11, though it may be delivered in the future when the video | |
| 59 memory is lost under DirectX. | |
| 60 | |
| 61 1.1.8: | |
| 62 You can pass SDL_NOFRAME to SDL_VideoMode() to create a window | |
| 63 that has no title bar or frame decoration. Fullscreen video | |
| 64 modes automatically have this flag set. | |
| 65 | |
| 66 Added a function to query the clipping rectangle for a surface: | |
| 67 void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect) | |
| 68 | |
| 69 Added a function to query the current event filter: | |
| 70 SDL_EventFilter SDL_GetEventFilter(void) | |
| 71 | |
| 72 If you pass -1 to SDL_ShowCursor(), it won't change the current | |
| 73 cursor visibility state, but will still return it. | |
| 74 | |
| 75 SDL_LockSurface() and SDL_UnlockSurface() are recursive, meaning | |
| 76 you can nest them as deep as you want, as long as each lock call | |
| 77 has a matching unlock call. The surface remains locked until the | |
| 78 last matching unlock call. | |
| 79 | |
| 80 Note that you may not blit to or from a locked surface. | |
| 81 | |
| 82 1.1.7: | |
| 83 The SDL_SetGammaRamp() and SDL_GetGammaRamp() functions now take | |
| 84 arrays of Uint16 values instead of Uint8 values. For the most part, | |
| 85 you can just take your old values and shift them up 8 bits to get | |
| 86 new correct values for your gamma ramps. | |
| 87 | |
| 88 You can pass SDL_RLEACCEL in flags passed to SDL_ConvertSurface() | |
| 89 and SDL will try to RLE accelerate colorkey and alpha blits in the | |
| 90 resulting surface. | |
| 91 | |
| 92 1.1.6: | |
| 93 Added a function to return the thread ID of a specific thread: | |
| 94 Uint32 SDL_GetThreadID(SDL_Thread *thread) | |
| 95 If 'thread' is NULL, this function returns the id for this thread. | |
| 96 | |
| 97 1.1.5: | |
| 98 The YUV overlay structure has been changed to use an array of | |
| 99 pitches and pixels representing the planes of a YUV image, to | |
| 100 better enable hardware acceleration. The YV12 and IYUV formats | |
| 101 each have three planes, corresponding to the Y, U, and V portions | |
| 102 of the image, while packed pixel YUV formats just have one plane. | |
| 103 | |
| 104 For palettized mode (8bpp), the screen colormap is now split in | |
| 105 a physical and a logical palette. The physical palette determines | |
| 106 what colours the screen pixels will get when displayed, and the | |
| 107 logical palette controls the mapping from blits to/from the screen. | |
| 108 A new function, SDL_SetPalette() has been added to change | |
| 109 logical and physical palettes separately. SDL_SetColors() works | |
| 110 just as before, and is equivalent to calling SDL_SetPalette() with | |
| 111 a flag argument of (SDL_LOGPAL|SDL_PHYSPAL). | |
| 112 | |
| 113 SDL_BlitSurface() no longer modifies the source rectangle, only the | |
| 114 destination rectangle. The width/height members of the destination | |
| 115 rectangle are ignored, only the position is used. | |
| 116 | |
| 117 The old source clipping function SDL_SetClipping() has been replaced | |
| 118 with a more useful function to set the destination clipping rectangle: | |
| 119 SDL_bool SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect) | |
| 120 | |
| 121 Added a function to see what subsystems have been initialized: | |
| 122 Uint32 SDL_WasInit(Uint32 flags) | |
| 123 | |
| 124 The Big Alpha Flip: SDL now treats alpha as opacity like everybody | |
| 125 else, and not as transparency: | |
| 126 | |
| 127 A new cpp symbol: SDL_ALPHA_OPAQUE is defined as 255 | |
| 128 A new cpp symbol: SDL_ALPHA_TRANSPARENT is defined as 0 | |
| 129 Values between 0 and 255 vary from fully transparent to fully opaque. | |
| 130 | |
| 131 New functions: | |
| 132 SDL_DisplayFormatAlpha() | |
| 133 Returns a surface converted to a format with alpha-channel | |
| 134 that can be blit efficiently to the screen. (In other words, | |
| 135 like SDL_DisplayFormat() but the resulting surface has | |
| 136 an alpha channel.) This is useful for surfaces with alpha. | |
| 137 SDL_MapRGBA() | |
| 138 Works as SDL_MapRGB() but takes an additional alpha parameter. | |
| 139 SDL_GetRGBA() | |
| 140 Works as SDL_GetRGB() but also returns the alpha value | |
| 141 (SDL_ALPHA_OPAQUE for formats without an alpha channel) | |
| 142 | |
| 143 Both SDL_GetRGB() and SDL_GetRGBA() now always return values in | |
| 144 the [0..255] interval. Previously, SDL_GetRGB() would return | |
| 145 (0xf8, 0xfc, 0xf8) for a completely white pixel in RGB565 format. | |
| 146 (N.B.: This is broken for bit fields < 3 bits.) | |
| 147 | |
| 148 SDL_MapRGB() returns pixels in which the alpha channel is set opaque. | |
| 149 | |
| 150 SDL_SetAlpha() can now be used for both setting the per-surface | |
| 151 alpha, using the new way of thinking of alpha, and also to enable | |
| 152 and disable per-pixel alpha blending for surfaces with an alpha | |
| 153 channel: | |
| 154 To disable alpha blending: | |
| 155 SDL_SetAlpha(surface, 0, 0); | |
| 156 To re-enable alpha blending: | |
| 157 SDL_SetAlpha(surface, SDL_SRCALPHA, 0); | |
| 158 Surfaces with an alpha channel have blending enabled by default. | |
| 159 | |
| 160 SDL_SetAlpha() now accepts SDL_RLEACCEL as a flag, which requests | |
| 161 RLE acceleration of blits, just as like with SDL_SetColorKey(). | |
| 162 This flag can be set for both surfaces with an alpha channel | |
| 163 and surfaces with an alpha value set by SDL_SetAlpha(). | |
| 164 As always, RLE surfaces must be locked before pixel access is | |
| 165 allowed, and unlocked before any other SDL operations are done | |
| 166 on it. | |
| 167 | |
| 168 The blit semantics for surfaces with and without alpha and colorkey | |
| 169 have now been defined: | |
| 170 | |
| 171 RGBA->RGB: | |
| 172 SDL_SRCALPHA set: | |
| 173 alpha-blend (using alpha-channel). | |
| 174 SDL_SRCCOLORKEY ignored. | |
| 175 SDL_SRCALPHA not set: | |
| 176 copy RGB. | |
| 177 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 178 RGB values of the source colour key, ignoring alpha in the | |
| 179 comparison. | |
| 180 | |
| 181 RGB->RGBA: | |
| 182 SDL_SRCALPHA set: | |
| 183 alpha-blend (using the source per-surface alpha value); | |
| 184 set destination alpha to opaque. | |
| 185 SDL_SRCALPHA not set: | |
| 186 copy RGB, set destination alpha to opaque. | |
| 187 both: | |
| 188 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 189 source colour key. | |
| 190 | |
| 191 RGBA->RGBA: | |
| 192 SDL_SRCALPHA set: | |
| 193 alpha-blend (using the source alpha channel) the RGB values; | |
| 194 leave destination alpha untouched. [Note: is this correct?] | |
| 195 SDL_SRCCOLORKEY ignored. | |
| 196 SDL_SRCALPHA not set: | |
| 197 copy all of RGBA to the destination. | |
| 198 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 199 RGB values of the source colour key, ignoring alpha in the | |
| 200 comparison. | |
| 201 | |
| 202 RGB->RGB: | |
| 203 SDL_SRCALPHA set: | |
| 204 alpha-blend (using the source per-surface alpha value). | |
| 205 SDL_SRCALPHA not set: | |
| 206 copy RGB. | |
| 207 both: | |
| 208 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 209 source colour key. | |
| 210 | |
| 211 As a special case, blits from surfaces with per-surface alpha | |
| 212 value of 128 (50% transparency) are optimised and much faster | |
| 213 than other alpha values. This does not apply to surfaces with | |
| 214 alpha channels (per-pixel alpha). | |
| 215 | |
| 216 New functions for manipulating the gamma of the display have | |
| 217 been added: | |
| 218 int SDL_SetGamma(float red, float green, float blue); | |
| 219 int SDL_SetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue); | |
| 220 int SDL_GetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue); | |
| 221 Gamma ramps are tables with 256 entries which map the screen color | |
| 222 components into actually displayed colors. For an example of | |
| 223 implementing gamma correction and gamma fades, see test/testgamma.c | |
| 224 Gamma control is not supported on all hardware. | |
| 225 | |
| 226 1.1.4: | |
| 227 The size of the SDL_CDtrack structure changed from 8 to 12 bytes | |
| 228 as the size of the length member was extended to 32 bits. | |
| 229 | |
| 230 You can now use SDL for 2D blitting with a GL mode by passing the | |
| 231 SDL_OPENGLBLIT flag to SDL_SetVideoMode(). You can specify 16 or | |
| 232 32 bpp, and the data in the framebuffer is put into the GL scene | |
| 233 when you call SDL_UpdateRects(), and the scene will be visible | |
| 234 when you call SDL_GL_SwapBuffers(). | |
| 235 | |
| 236 Run the "testgl" test program with the -logo command line option | |
| 237 to see an example of this blending of 2D and 3D in SDL. | |
| 238 | |
| 239 1.1.3: | |
| 240 Added SDL_FreeRW() to the API, to complement SDL_AllocRW() | |
| 241 | |
| 242 Added resizable window support - just add SDL_RESIZABLE to the | |
| 243 SDL_SetVideoMode() flags, and then wait for SDL_VIDEORESIZE events. | |
| 244 See SDL_events.h for details on the new SDL_ResizeEvent structure. | |
| 245 | |
| 246 Added condition variable support, based on mutexes and semaphores. | |
| 247 SDL_CreateCond() | |
| 248 SDL_DestroyCond() | |
| 249 SDL_CondSignal() | |
| 250 SDL_CondBroadcast() | |
| 251 SDL_CondWait() | |
| 252 SDL_CondTimedWait() | |
| 253 The new function prototypes are in SDL_mutex.h | |
| 254 | |
| 255 Added counting semaphore support, based on the mutex primitive. | |
| 256 SDL_CreateSemaphore() | |
| 257 SDL_DestroySemaphore() | |
| 258 SDL_SemWait() | |
| 259 SDL_SemTryWait() | |
| 260 SDL_SemWaitTimeout() | |
| 261 SDL_SemPost() | |
| 262 SDL_SemValue() | |
| 263 The new function prototypes are in SDL_mutex.h | |
| 264 | |
| 265 Added support for asynchronous blitting. To take advantage of this, | |
| 266 you must set the SDL_ASYNCBLIT flag when setting the video mode and | |
| 267 creating surfaces that you want accelerated in this way. You must | |
| 268 lock surfaces that have this flag set, and the lock will block until | |
| 269 any queued blits have completed. | |
| 270 | |
| 271 Added YUV video overlay support. | |
| 272 The supported YUV formats are: YV12, IYUV, YUY2, UYVY, and YVYU. | |
| 273 This function creates an overlay surface: | |
| 274 SDL_CreateYUVOverlay() | |
| 275 You must lock and unlock the overlay to get access to the data: | |
| 276 SDL_LockYUVOverlay() SDL_UnlockYUVOverlay() | |
| 277 You can then display the overlay: | |
| 278 SDL_DisplayYUVOverlay() | |
| 279 You must free the overlay when you are done using it: | |
| 280 SDL_FreeYUVOverlay() | |
| 281 See SDL_video.h for the full function prototypes. | |
| 282 | |
| 283 The joystick hat position constants have been changed: | |
| 284 Old constant New constant | |
| 285 ------------ ------------ | |
| 286 0 SDL_HAT_CENTERED | |
| 287 1 SDL_HAT_UP | |
| 288 2 SDL_HAT_RIGHTUP | |
| 289 3 SDL_HAT_RIGHT | |
| 290 4 SDL_HAT_RIGHTDOWN | |
| 291 5 SDL_HAT_DOWN | |
| 292 6 SDL_HAT_LEFTDOWN | |
| 293 7 SDL_HAT_LEFT | |
| 294 8 SDL_HAT_LEFTUP | |
| 295 The new constants are bitmasks, so you can check for the | |
| 296 individual axes like this: | |
| 297 if ( hat_position & SDL_HAT_UP ) { | |
| 298 } | |
| 299 and you'll catch left-up, up, and right-up. | |
| 300 | |
| 301 1.1.2: | |
| 302 Added multiple timer support: | |
| 303 SDL_AddTimer() and SDL_RemoveTimer() | |
| 304 | |
| 305 SDL_WM_SetIcon() now respects the icon colorkey if mask is NULL. | |
| 306 | |
| 307 1.1.0: | |
| 308 Added initial OpenGL support. | |
| 309 First set GL attributes (such as RGB depth, alpha depth, etc.) | |
| 310 SDL_GL_SetAttribute() | |
| 311 Then call SDL_SetVideoMode() with the SDL_OPENGL flag. | |
| 312 Perform all of your normal GL drawing. | |
| 313 Finally swap the buffers with the new SDL function: | |
| 314 SDL_GL_SwapBuffers() | |
| 315 See the new 'testgl' test program for an example of using GL with SDL. | |
| 316 | |
| 317 You can load GL extension functions by using the function: | |
| 318 SDL_GL_LoadProcAddress() | |
| 319 | |
| 320 Added functions to initialize and cleanup specific SDL subsystems: | |
| 321 SDL_InitSubSystem() and SDL_QuitSubSystem() | |
| 322 | |
| 323 Added user-defined event type: | |
| 324 typedef struct { | |
| 325 Uint8 type; | |
| 326 int code; | |
| 327 void *data1; | |
| 328 void *data2; | |
| 329 } SDL_UserEvent; | |
| 330 This structure is in the "user" member of an SDL_Event. | |
| 331 | |
| 332 Added a function to push events into the event queue: | |
| 333 SDL_PushEvent() | |
| 334 | |
| 335 Example of using the new SDL user-defined events: | |
| 336 { | |
| 337 SDL_Event event; | |
| 338 | |
| 339 event.type = SDL_USEREVENT; | |
| 340 event.user.code = my_event_code; | |
| 341 event.user.data1 = significant_data; | |
| 342 event.user.data2 = 0; | |
| 343 SDL_PushEvent(&event); | |
| 344 } | |
| 345 | |
| 346 Added a function to get mouse deltas since last query: | |
| 347 SDL_GetRelativeMouseState() | |
| 348 | |
| 349 Added a boolean datatype to SDL_types.h: | |
| 350 SDL_bool = { SDL_TRUE, SDL_FALSE } | |
| 351 | |
| 352 Added a function to get the current audio status: | |
| 353 SDL_GetAudioState(); | |
| 354 It returns one of: | |
| 355 SDL_AUDIO_STOPPED, | |
| 356 SDL_AUDIO_PLAYING, | |
| 357 SDL_AUDIO_PAUSED | |
| 358 | |
| 359 Added an AAlib driver (ASCII Art) - by Stephane Peter. | |
| 360 | |
| 361 1.0.6: | |
| 362 The input grab state is reset after each call to SDL_SetVideoMode(). | |
| 363 The input is grabbed by default in fullscreen mode, and ungrabbed in | |
| 364 windowed mode. If you want to set input grab to a particular value, | |
| 365 you should set it after each call to SDL_SetVideoMode(). | |
| 366 | |
| 367 1.0.5: | |
| 368 Exposed SDL_AudioInit(), SDL_VideoInit() | |
| 369 Added SDL_AudioDriverName() and SDL_VideoDriverName() | |
| 370 | |
| 371 Added new window manager function: | |
| 372 SDL_WM_ToggleFullScreen() | |
| 373 This is currently implemented only on Linux | |
| 374 | |
| 375 The ALT-ENTER code has been removed - it's not appropriate for a | |
| 376 lib to bind keys when they aren't even emergency escape sequences. | |
| 377 | |
| 378 ALT-ENTER functionality can be implemented with the following code: | |
| 379 | |
| 380 int Handle_AltEnter(const SDL_Event *event) | |
| 381 { | |
| 382 if ( event->type == SDL_KEYDOWN ) { | |
| 383 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
| 384 (event->key.keysym.mod & KMOD_ALT) ) { | |
| 385 SDL_WM_ToggleFullScreen(SDL_GetVideoSurface()); | |
| 386 return(0); | |
| 387 } | |
| 388 } | |
| 389 return(1); | |
| 390 } | |
| 391 SDL_SetEventFilter(Handle_AltEnter); | |
| 392 | |
| 393 1.0.3: | |
| 394 Under X11, if you grab the input and hide the mouse cursor, | |
| 395 the mouse will go into a "relative motion" mode where you | |
| 396 will always get relative motion events no matter how far in | |
| 397 each direction you move the mouse - relative motion is not | |
| 398 bounded by the edges of the window (though the absolute values | |
| 399 of the mouse positions are clamped by the size of the window). | |
| 400 The SVGAlib, framebuffer console, and DirectInput drivers all | |
| 401 have this behavior naturally, and the GDI and BWindow drivers | |
| 402 never go into "relative motion" mode. | |
| 403 | |
| 404 1.0.2: | |
| 405 Added a function to enable keyboard repeat: | |
| 406 SDL_EnableKeyRepeat() | |
| 407 | |
| 408 Added a function to grab the mouse and keyboard input | |
| 409 SDL_WM_GrabInput() | |
| 410 | |
| 411 Added a function to iconify the window. | |
| 412 SDL_WM_IconifyWindow() | |
| 413 If this function succeeds, the application will receive an event | |
| 414 signaling SDL_APPACTIVE event | |
| 415 | |
| 416 1.0.1: | |
| 417 Added constants to SDL_audio.h for 16-bit native byte ordering: | |
| 418 AUDIO_U16SYS, AUDIO_S16SYS | |
| 419 | |
| 420 1.0.0: | |
| 421 New public release | |
| 422 | |
| 423 0.11.5: | |
| 424 A new function SDL_GetVideoSurface() has been added, and returns | |
| 425 a pointer to the current display surface. | |
| 426 | |
| 427 SDL_AllocSurface() has been renamed SDL_CreateRGBSurface(), and | |
| 428 a new function SDL_CreateRGBSurfaceFrom() has been added to allow | |
| 429 creating an SDL surface from an existing pixel data buffer. | |
| 430 | |
| 431 Added SDL_GetRGB() to the headers and documentation. | |
| 432 | |
| 433 0.11.4: | |
| 434 SDL_SetLibraryPath() is no longer meaningful, and has been removed. | |
| 435 | |
| 436 0.11.3: | |
| 437 A new flag for SDL_Init(), SDL_INIT_NOPARACHUTE, prevents SDL from | |
| 438 installing fatal signal handlers on operating systems that support | |
| 439 them. | |
| 440 | |
| 441 0.9.15: | |
| 442 SDL_CreateColorCursor() has been removed. Color cursors should | |
| 443 be implemented as sprites, blitted by the application when the | |
| 444 cursor moves. To get smooth color cursor updates when the app | |
| 445 is busy, pass the SDL_INIT_EVENTTHREAD flag to SDL_Init(). This | |
| 446 allows you to handle the mouse motion in another thread from an | |
| 447 event filter function, but is currently only supported by Linux | |
| 448 and BeOS. Note that you'll have to protect the display surface | |
| 449 from multi-threaded access by using mutexes if you do this. | |
| 450 | |
| 451 Thread-safe surface support has been removed from SDL. | |
| 452 This makes blitting somewhat faster, by removing SDL_MiddleBlit(). | |
| 453 Code that used SDL_MiddleBlit() should use SDL_LowerBlit() instead. | |
| 454 You can make your surfaces thread-safe by allocating your own | |
| 455 mutex and making lock/unlock calls around accesses to your surface. | |
| 456 | |
| 457 0.9.14: | |
| 458 SDL_GetMouseState() now takes pointers to int rather than Uint16. | |
| 459 | |
| 460 If you set the SDL_WINDOWID environment variable under UNIX X11, | |
| 461 SDL will use that as the main window instead of creating it's own. | |
| 462 This is an unsupported extension to SDL, and not portable at all. | |
| 463 | |
| 464 0.9.13: | |
| 465 Added a function SDL_SetLibraryPath() which can be used to specify | |
| 466 the directory containing the SDL dynamic libraries. This is useful | |
| 467 for commercial applications which ship with particular versions | |
| 468 of the libraries, and for security on multi-user systems. | |
| 469 If this function is not used, the default system directories are | |
| 470 searched using the native dynamic object loading mechanism. | |
| 471 | |
| 472 In order to support C linkage under Visual C++, you must declare | |
| 473 main() without any return type: | |
| 474 main(int argc, char *argv[]) { | |
| 475 /* Do the program... */ | |
| 476 return(0); | |
| 477 } | |
| 478 C++ programs should also return a value if compiled under VC++. | |
| 479 | |
| 480 The blit_endian member of the SDL_VideoInfo struct has been removed. | |
| 481 | |
| 482 SDL_SymToASCII() has been replaced with SDL_GetKeyName(), so there | |
| 483 is now no longer any function to translate a keysym to a character. | |
| 484 | |
| 485 The SDL_keysym structure has been extended with a 'scancode' and | |
| 486 'unicode' member. The 'scancode' is a hardware specific scancode | |
| 487 for the key that was pressed, and may be 0. The 'unicode' member | |
| 488 is a 16-bit UNICODE translation of the key that was pressed along | |
| 489 with any modifiers or compose keys that have been pressed. | |
| 490 If no UNICODE translation exists for the key, 'unicode' will be 0. | |
| 491 | |
| 492 Added a function SDL_EnableUNICODE() to enable/disable UNICODE | |
| 493 translation of character keypresses. Translation defaults off. | |
| 494 | |
| 495 To convert existing code to use the new API, change code which | |
| 496 uses SDL_SymToASCII() to get the keyname to use SDL_GetKeyName(), | |
| 497 and change code which uses it to get the ASCII value of a sym to | |
| 498 use the 'unicode' member of the event keysym. | |
| 499 | |
| 500 0.9.12: | |
| 501 There is partial support for 64-bit datatypes. I don't recommend | |
| 502 you use this if you have a choice, because 64-bit datatypes are not | |
| 503 supported on many platforms. On platforms for which it is supported, | |
| 504 the SDL_HAS_64BIT_TYPE C preprocessor define will be enabled, and | |
| 505 you can use the Uint64 and Sint64 datatypes. | |
| 506 | |
| 507 Added functions to SDL_endian.h to support 64-bit datatypes: | |
| 508 SDL_SwapLE64(), SDL_SwapBE64(), | |
| 509 SDL_ReadLE64(), SDL_ReadBE64(), SDL_WriteLE64(), SDL_WriteBE64() | |
| 510 | |
| 511 A new member "len_ratio" has been added to the SDL_AudioCVT structure, | |
| 512 and allows you to determine either the original buffer length or the | |
| 513 converted buffer length, given the other. | |
| 514 | |
| 515 A new function SDL_FreeWAV() has been added to the API to free data | |
| 516 allocated by SDL_LoadWAV_RW(). This is necessary under Win32 since | |
| 517 the gcc compiled DLL uses a different heap than VC++ compiled apps. | |
| 518 | |
| 519 SDL now has initial support for international keyboards using the | |
| 520 Latin character set. | |
| 521 If a particular mapping is desired, you can set the DEFAULT_KEYBOARD | |
| 522 compile-time variable, or you can set the environment variable | |
| 523 "SDL_KEYBOARD" to a string identifying the keyboard mapping you desire. | |
| 524 The valid values for these variables can be found in SDL_keyboard.c | |
| 525 | |
| 526 Full support for German and French keyboards under X11 is implemented. | |
| 527 | |
| 528 0.9.11: | |
| 529 The THREADED_EVENTS compile-time define has been replaced with the | |
| 530 SDL_INIT_EVENTTHREAD flag. If this flag is passed to SDL_Init(), | |
| 531 SDL will create a separate thread to perform input event handling. | |
| 532 If this flag is passed to SDL_Init(), and the OS doesn't support | |
| 533 event handling in a separate thread, SDL_Init() will fail. | |
| 534 Be sure to add calls to SDL_Delay() in your main thread to allow | |
| 535 the OS to schedule your event thread, or it may starve, leading | |
| 536 to slow event delivery and/or dropped events. | |
| 537 Currently MacOS and Win32 do not support this flag, while BeOS | |
| 538 and Linux do support it. I recommend that your application only | |
| 539 use this flag if absolutely necessary. | |
| 540 | |
| 541 The SDL thread function passed to SDL_CreateThread() now returns a | |
| 542 status. This status can be retrieved by passing a non-NULL pointer | |
| 543 as the 'status' argument to SDL_WaitThread(). | |
| 544 | |
| 545 The volume parameter to SDL_MixAudio() has been increased in range | |
| 546 from (0-8) to (0-128) | |
| 547 | |
| 548 SDL now has a data source abstraction which can encompass a file, | |
| 549 an area of memory, or any custom object you can envision. It uses | |
| 550 these abstractions, SDL_RWops, in the endian read/write functions, | |
| 551 and the built-in WAV and BMP file loaders. This means you can load | |
| 552 WAV chunks from memory mapped files, compressed archives, network | |
| 553 pipes, or anything else that has a data read abstraction. | |
| 554 | |
| 555 There are three built-in data source abstractions: | |
| 556 SDL_RWFromFile(), SDL_RWFromFP(), SDL_RWFromMem() | |
| 557 along with a generic data source allocation function: | |
| 558 SDL_AllocRW() | |
| 559 These data sources can be used like stdio file pointers with the | |
| 560 following convenience functions: | |
| 561 SDL_RWseek(), SDL_RWread(), SDL_RWwrite(), SDL_RWclose() | |
| 562 These functions are defined in the new header file "SDL_rwops.h" | |
| 563 | |
| 564 The endian swapping functions have been turned into macros for speed | |
| 565 and SDL_CalculateEndian() has been removed. SDL_endian.h now defines | |
| 566 SDL_BYTEORDER as either SDL_BIG_ENDIAN or SDL_LIL_ENDIAN depending on | |
| 567 the endianness of the host system. | |
| 568 | |
| 569 The endian read/write functions now take an SDL_RWops pointer | |
| 570 instead of a stdio FILE pointer, to support the new data source | |
| 571 abstraction. | |
| 572 | |
| 573 The SDL_*LoadWAV() functions have been replaced with a single | |
| 574 SDL_LoadWAV_RW() function that takes a SDL_RWops pointer as it's | |
| 575 first parameter, and a flag whether or not to automatically | |
| 576 free it as the second parameter. SDL_LoadWAV() is a macro for | |
| 577 backward compatibility and convenience: | |
| 578 SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...); | |
| 579 | |
| 580 The SDL_*LoadBMP()/SDL_*SaveBMP() functions have each been replaced | |
| 581 with a single function that takes a SDL_RWops pointer as it's | |
| 582 first parameter, and a flag whether or not to automatically | |
| 583 free it as the second parameter. SDL_LoadBMP() and SDL_SaveBMP() | |
| 584 are macros for backward compatibility and convenience: | |
| 585 SDL_LoadBMP_RW(SDL_RWFromFile("sample.bmp", "rb"), 1, ...); | |
| 586 SDL_SaveBMP_RW(SDL_RWFromFile("sample.bmp", "wb"), 1, ...); | |
| 587 Note that these functions use SDL_RWseek() extensively, and should | |
| 588 not be used on pipes or other non-seekable data sources. | |
| 589 | |
| 590 0.9.10: | |
| 591 The Linux SDL_SysWMInfo and SDL_SysWMMsg structures have been | |
| 592 extended to support multiple types of display drivers, as well as | |
| 593 safe access to the X11 display when THREADED_EVENTS is enabled. | |
| 594 The new structures are documented in the SDL_syswm.h header file. | |
| 595 | |
| 596 Thanks to John Elliott <jce@seasip.demon.co.uk>, the UK keyboard | |
| 597 should now work properly, as well as the "Windows" keys on US | |
| 598 keyboards. | |
| 599 | |
| 600 The Linux CD-ROM code now reads the CD-ROM devices from /etc/fstab | |
| 601 instead of trying to open each block device on the system. | |
| 602 The CD must be listed in /etc/fstab as using the iso9660 filesystem. | |
| 603 | |
| 604 On Linux, if you define THREADED_EVENTS at compile time, a separate | |
| 605 thread will be spawned to gather X events asynchronously from the | |
| 606 graphics updates. This hasn't been extensively tested, but it does | |
| 607 provide a means of handling keyboard and mouse input in a separate | |
| 608 thread from the graphics thread. (This is now enabled by default.) | |
| 609 | |
| 610 A special access function SDL_PeepEvents() allows you to manipulate | |
| 611 the event queue in a thread-safe manner, including peeking at events, | |
| 612 removing events of a specified type, and adding new events of arbitrary | |
| 613 type to the queue (use the new 'user' member of the SDL_Event type). | |
| 614 | |
| 615 If you use SDL_PeepEvents() to gather events, then the main graphics | |
| 616 thread needs to call SDL_PumpEvents() periodically to drive the event | |
| 617 loop and generate input events. This is not necessary if SDL has been | |
| 618 compiled with THREADED_EVENTS defined, but doesn't hurt. | |
| 619 | |
| 620 A new function SDL_ThreadID() returns the identifier associated with | |
| 621 the current thread. | |
| 622 | |
| 623 0.9.9: | |
| 624 The AUDIO_STEREO format flag has been replaced with a new 'channels' | |
| 625 member of the SDL_AudioSpec structure. The channels are 1 for mono | |
| 626 audio, and 2 for stereo audio. In the future more channels may be | |
| 627 supported for 3D surround sound. | |
| 628 | |
| 629 The SDL_MixAudio() function now takes an additional volume parameter, | |
| 630 which should be set to SDL_MIX_MAXVOLUME for compatibility with the | |
| 631 original function. | |
| 632 | |
| 633 The CD-ROM functions which take a 'cdrom' parameter can now be | |
| 634 passed NULL, and will act on the last successfully opened CD-ROM. | |
| 635 | |
| 636 0.9.8: | |
| 637 No changes, bugfixes only. | |
| 638 | |
| 639 0.9.7: | |
| 640 No changes, bugfixes only. | |
| 641 | |
| 642 0.9.6: | |
| 643 Added a fast rectangle fill function: SDL_FillRect() | |
| 644 | |
| 645 Addition of a useful function for getting info on the video hardware: | |
| 646 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
| 647 This function replaces SDL_GetDisplayFormat(). | |
| 648 | |
| 649 Initial support for double-buffering: | |
| 650 Use the SDL_DOUBLEBUF flag in SDL_SetVideoMode() | |
| 651 Update the screen with a new function: SDL_Flip() | |
| 652 | |
| 653 SDL_AllocSurface() takes two new flags: | |
| 654 SDL_SRCCOLORKEY means that the surface will be used for colorkey blits | |
| 655 and if the hardware supports hardware acceleration of colorkey blits | |
| 656 between two surfaces in video memory, to place the surface in video | |
| 657 memory if possible, otherwise it will be placed in system memory. | |
| 658 SDL_SRCALPHA means that the surface will be used for alpha blits and | |
| 659 if the hardware supports hardware acceleration of alpha blits between | |
| 660 two surfaces in video memory, to place the surface in video memory | |
| 661 if possible, otherwise it will be placed in system memory. | |
| 662 SDL_HWSURFACE now means that the surface will be created with the | |
| 663 same format as the display surface, since having surfaces in video | |
| 664 memory is only useful for fast blitting to the screen, and you can't | |
| 665 blit surfaces with different surface formats in video memory. | |
| 666 | |
| 667 0.9.5: | |
| 668 You can now pass a NULL mask to SDL_WM_SetIcon(), and it will assume | |
| 669 that the icon consists of the entire image. | |
| 670 | |
| 671 SDL_LowerBlit() is back -- but don't use it on the display surface. | |
| 672 It is exactly the same as SDL_MiddleBlit(), but doesn't check for | |
| 673 thread safety. | |
| 674 | |
| 675 Added SDL_FPLoadBMP(), SDL_FPSaveBMP(), SDL_FPLoadWAV(), which take | |
| 676 a FILE pointer instead of a file name. | |
| 677 | |
| 678 Added CD-ROM audio control API: | |
| 679 SDL_CDNumDrives() | |
| 680 SDL_CDName() | |
| 681 SDL_CDOpen() | |
| 682 SDL_CDStatus() | |
| 683 SDL_CDPlayTracks() | |
| 684 SDL_CDPlay() | |
| 685 SDL_CDPause() | |
| 686 SDL_CDResume() | |
| 687 SDL_CDStop() | |
| 688 SDL_CDEject() | |
| 689 SDL_CDClose() | |
| 690 | |
| 691 0.9.4: | |
| 692 No changes, bugfixes only. | |
| 693 | |
| 694 0.9.3: | |
| 695 Mouse motion event now includes relative motion information: | |
| 696 Sint16 event->motion.xrel, Sint16 event->motion.yrel | |
| 697 | |
| 698 X11 keyrepeat handling can be disabled by defining IGNORE_X_KEYREPEAT | |
| 699 (Add -DIGNORE_X_KEYREPEAT to CFLAGS line in obj/x11Makefile) | |
| 700 | |
| 701 0.9.2: | |
| 702 No changes, bugfixes only. | |
| 703 | |
| 704 0.9.1: | |
| 705 Removed SDL_MapSurface() and SDL_UnmapSurface() -- surfaces are now | |
| 706 automatically mapped on blit. | |
| 707 | |
| 708 0.8.0: | |
| 709 SDL stable release |