Mercurial > sdl-ios-xcode
annotate WhatsNew @ 4278:010efca83dfc SDL-1.2
Fixed building without OpenGL support
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 07 Oct 2009 06:10:40 +0000 |
parents | 82dab719502e |
children | e1826b24ee8d |
rev | line source |
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0 | 1 |
2 This is a list of API changes in SDL's version history. | |
3 | |
4 Version 1.0: | |
5 | |
4113 | 6 1.2.13: |
7 Added SDL_BUTTON_X1 and SDL_BUTTON_X2 constants. | |
8 | |
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Updated docs with bug fixes in subversion.
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9 1.2.12: |
f5daa62ce1c4
Updated docs with bug fixes in subversion.
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10 Added SDL_VIDEO_ALLOW_SCREENSAVER to override SDL's disabling |
f5daa62ce1c4
Updated docs with bug fixes in subversion.
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11 of the screensaver on Mac OS X and X11. |
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12 |
1507 | 13 1.2.10: |
1794 | 14 If SDL_OpenAudio() is passed zero for the desired format |
15 fields, the following environment variables will be used | |
16 to fill them in: | |
17 SDL_AUDIO_FREQUENCY | |
18 SDL_AUDIO_FORMAT | |
19 SDL_AUDIO_CHANNELS | |
20 SDL_AUDIO_SAMPLES | |
21 If an environment variable is not specified, it will be set | |
22 to a reasonable default value. | |
23 | |
1765 | 24 Added support for the SDL_VIDEO_FULLSCREEN_HEAD environment |
25 variable, currently supported on X11 Xinerama configurations. | |
26 | |
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Implemented bug #2, 117:
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27 Added SDL_GL_SWAP_CONTROL to wait for vsync in OpenGL applications. |
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Implemented bug #2, 117:
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28 |
1737 | 29 Added SDL_GL_ACCELERATED_VISUAL to guarantee hardware acceleration. |
30 | |
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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.
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31 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.
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32 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.
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33 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.
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34 |
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.
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35 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.
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36 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.
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37 |
1507 | 38 Added SDL_GetKeyRepeat() |
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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.
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39 |
1507 | 40 Added SDL_config.h, with defaults for various build environments. |
41 | |
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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42 1.2.7: |
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43 Added CPU feature detection functions to SDL_cpuinfo.h: |
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44 SDL_HasRDTSC(), SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE(), |
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45 SDL_HasAltiVec() |
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Added function to create RWops from const memory: SDL_RWFromConstMem()
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46 Added function to create RWops from const memory: SDL_RWFromConstMem() |
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Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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47 |
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Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
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48 1.2.6: |
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Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
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49 Added SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() |
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Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
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50 |
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Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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51 Added SDL_GL_MULTISAMPLEBUFFERS and SDL_GL_MULTISAMPLESAMPLES for FSAA |
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Date: Thu, 24 Apr 2003 15:13:47 -0400
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52 |
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Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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53 1.2.5: |
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Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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54 Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5) |
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55 |
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Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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56 Added SDL_GL_STEREO for stereoscopic OpenGL contexts |
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Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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57 |
0 | 58 1.2.0: |
59 Added SDL_VIDEOEXPOSE event to signal that the screen needs to | |
60 be redrawn. This is currently only delivered to OpenGL windows | |
61 on X11, though it may be delivered in the future when the video | |
62 memory is lost under DirectX. | |
63 | |
64 1.1.8: | |
65 You can pass SDL_NOFRAME to SDL_VideoMode() to create a window | |
66 that has no title bar or frame decoration. Fullscreen video | |
67 modes automatically have this flag set. | |
68 | |
69 Added a function to query the clipping rectangle for a surface: | |
70 void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect) | |
71 | |
72 Added a function to query the current event filter: | |
73 SDL_EventFilter SDL_GetEventFilter(void) | |
74 | |
75 If you pass -1 to SDL_ShowCursor(), it won't change the current | |
76 cursor visibility state, but will still return it. | |
77 | |
78 SDL_LockSurface() and SDL_UnlockSurface() are recursive, meaning | |
79 you can nest them as deep as you want, as long as each lock call | |
80 has a matching unlock call. The surface remains locked until the | |
81 last matching unlock call. | |
82 | |
83 Note that you may not blit to or from a locked surface. | |
84 | |
85 1.1.7: | |
86 The SDL_SetGammaRamp() and SDL_GetGammaRamp() functions now take | |
87 arrays of Uint16 values instead of Uint8 values. For the most part, | |
88 you can just take your old values and shift them up 8 bits to get | |
89 new correct values for your gamma ramps. | |
90 | |
91 You can pass SDL_RLEACCEL in flags passed to SDL_ConvertSurface() | |
92 and SDL will try to RLE accelerate colorkey and alpha blits in the | |
93 resulting surface. | |
94 | |
95 1.1.6: | |
96 Added a function to return the thread ID of a specific thread: | |
97 Uint32 SDL_GetThreadID(SDL_Thread *thread) | |
98 If 'thread' is NULL, this function returns the id for this thread. | |
99 | |
100 1.1.5: | |
101 The YUV overlay structure has been changed to use an array of | |
102 pitches and pixels representing the planes of a YUV image, to | |
103 better enable hardware acceleration. The YV12 and IYUV formats | |
104 each have three planes, corresponding to the Y, U, and V portions | |
105 of the image, while packed pixel YUV formats just have one plane. | |
106 | |
107 For palettized mode (8bpp), the screen colormap is now split in | |
108 a physical and a logical palette. The physical palette determines | |
109 what colours the screen pixels will get when displayed, and the | |
110 logical palette controls the mapping from blits to/from the screen. | |
111 A new function, SDL_SetPalette() has been added to change | |
112 logical and physical palettes separately. SDL_SetColors() works | |
113 just as before, and is equivalent to calling SDL_SetPalette() with | |
114 a flag argument of (SDL_LOGPAL|SDL_PHYSPAL). | |
115 | |
116 SDL_BlitSurface() no longer modifies the source rectangle, only the | |
117 destination rectangle. The width/height members of the destination | |
118 rectangle are ignored, only the position is used. | |
119 | |
120 The old source clipping function SDL_SetClipping() has been replaced | |
121 with a more useful function to set the destination clipping rectangle: | |
122 SDL_bool SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect) | |
123 | |
124 Added a function to see what subsystems have been initialized: | |
125 Uint32 SDL_WasInit(Uint32 flags) | |
126 | |
127 The Big Alpha Flip: SDL now treats alpha as opacity like everybody | |
128 else, and not as transparency: | |
129 | |
130 A new cpp symbol: SDL_ALPHA_OPAQUE is defined as 255 | |
131 A new cpp symbol: SDL_ALPHA_TRANSPARENT is defined as 0 | |
132 Values between 0 and 255 vary from fully transparent to fully opaque. | |
133 | |
134 New functions: | |
135 SDL_DisplayFormatAlpha() | |
136 Returns a surface converted to a format with alpha-channel | |
137 that can be blit efficiently to the screen. (In other words, | |
138 like SDL_DisplayFormat() but the resulting surface has | |
139 an alpha channel.) This is useful for surfaces with alpha. | |
140 SDL_MapRGBA() | |
141 Works as SDL_MapRGB() but takes an additional alpha parameter. | |
142 SDL_GetRGBA() | |
143 Works as SDL_GetRGB() but also returns the alpha value | |
144 (SDL_ALPHA_OPAQUE for formats without an alpha channel) | |
145 | |
146 Both SDL_GetRGB() and SDL_GetRGBA() now always return values in | |
147 the [0..255] interval. Previously, SDL_GetRGB() would return | |
148 (0xf8, 0xfc, 0xf8) for a completely white pixel in RGB565 format. | |
149 (N.B.: This is broken for bit fields < 3 bits.) | |
150 | |
151 SDL_MapRGB() returns pixels in which the alpha channel is set opaque. | |
152 | |
153 SDL_SetAlpha() can now be used for both setting the per-surface | |
154 alpha, using the new way of thinking of alpha, and also to enable | |
155 and disable per-pixel alpha blending for surfaces with an alpha | |
156 channel: | |
157 To disable alpha blending: | |
158 SDL_SetAlpha(surface, 0, 0); | |
159 To re-enable alpha blending: | |
160 SDL_SetAlpha(surface, SDL_SRCALPHA, 0); | |
161 Surfaces with an alpha channel have blending enabled by default. | |
162 | |
163 SDL_SetAlpha() now accepts SDL_RLEACCEL as a flag, which requests | |
164 RLE acceleration of blits, just as like with SDL_SetColorKey(). | |
165 This flag can be set for both surfaces with an alpha channel | |
166 and surfaces with an alpha value set by SDL_SetAlpha(). | |
167 As always, RLE surfaces must be locked before pixel access is | |
168 allowed, and unlocked before any other SDL operations are done | |
169 on it. | |
170 | |
171 The blit semantics for surfaces with and without alpha and colorkey | |
172 have now been defined: | |
173 | |
174 RGBA->RGB: | |
175 SDL_SRCALPHA set: | |
176 alpha-blend (using alpha-channel). | |
177 SDL_SRCCOLORKEY ignored. | |
178 SDL_SRCALPHA not set: | |
179 copy RGB. | |
180 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
181 RGB values of the source colour key, ignoring alpha in the | |
182 comparison. | |
183 | |
184 RGB->RGBA: | |
185 SDL_SRCALPHA set: | |
186 alpha-blend (using the source per-surface alpha value); | |
187 set destination alpha to opaque. | |
188 SDL_SRCALPHA not set: | |
189 copy RGB, set destination alpha to opaque. | |
190 both: | |
191 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
192 source colour key. | |
193 | |
194 RGBA->RGBA: | |
195 SDL_SRCALPHA set: | |
196 alpha-blend (using the source alpha channel) the RGB values; | |
197 leave destination alpha untouched. [Note: is this correct?] | |
198 SDL_SRCCOLORKEY ignored. | |
199 SDL_SRCALPHA not set: | |
200 copy all of RGBA to the destination. | |
201 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
202 RGB values of the source colour key, ignoring alpha in the | |
203 comparison. | |
204 | |
205 RGB->RGB: | |
206 SDL_SRCALPHA set: | |
207 alpha-blend (using the source per-surface alpha value). | |
208 SDL_SRCALPHA not set: | |
209 copy RGB. | |
210 both: | |
211 if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
212 source colour key. | |
213 | |
214 As a special case, blits from surfaces with per-surface alpha | |
215 value of 128 (50% transparency) are optimised and much faster | |
216 than other alpha values. This does not apply to surfaces with | |
217 alpha channels (per-pixel alpha). | |
218 | |
219 New functions for manipulating the gamma of the display have | |
220 been added: | |
221 int SDL_SetGamma(float red, float green, float blue); | |
222 int SDL_SetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue); | |
223 int SDL_GetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue); | |
224 Gamma ramps are tables with 256 entries which map the screen color | |
225 components into actually displayed colors. For an example of | |
226 implementing gamma correction and gamma fades, see test/testgamma.c | |
227 Gamma control is not supported on all hardware. | |
228 | |
229 1.1.4: | |
230 The size of the SDL_CDtrack structure changed from 8 to 12 bytes | |
231 as the size of the length member was extended to 32 bits. | |
232 | |
233 You can now use SDL for 2D blitting with a GL mode by passing the | |
234 SDL_OPENGLBLIT flag to SDL_SetVideoMode(). You can specify 16 or | |
235 32 bpp, and the data in the framebuffer is put into the GL scene | |
236 when you call SDL_UpdateRects(), and the scene will be visible | |
237 when you call SDL_GL_SwapBuffers(). | |
238 | |
239 Run the "testgl" test program with the -logo command line option | |
240 to see an example of this blending of 2D and 3D in SDL. | |
241 | |
242 1.1.3: | |
243 Added SDL_FreeRW() to the API, to complement SDL_AllocRW() | |
244 | |
245 Added resizable window support - just add SDL_RESIZABLE to the | |
246 SDL_SetVideoMode() flags, and then wait for SDL_VIDEORESIZE events. | |
247 See SDL_events.h for details on the new SDL_ResizeEvent structure. | |
248 | |
249 Added condition variable support, based on mutexes and semaphores. | |
250 SDL_CreateCond() | |
251 SDL_DestroyCond() | |
252 SDL_CondSignal() | |
253 SDL_CondBroadcast() | |
254 SDL_CondWait() | |
255 SDL_CondTimedWait() | |
256 The new function prototypes are in SDL_mutex.h | |
257 | |
258 Added counting semaphore support, based on the mutex primitive. | |
259 SDL_CreateSemaphore() | |
260 SDL_DestroySemaphore() | |
261 SDL_SemWait() | |
262 SDL_SemTryWait() | |
263 SDL_SemWaitTimeout() | |
264 SDL_SemPost() | |
265 SDL_SemValue() | |
266 The new function prototypes are in SDL_mutex.h | |
267 | |
268 Added support for asynchronous blitting. To take advantage of this, | |
269 you must set the SDL_ASYNCBLIT flag when setting the video mode and | |
270 creating surfaces that you want accelerated in this way. You must | |
271 lock surfaces that have this flag set, and the lock will block until | |
272 any queued blits have completed. | |
273 | |
274 Added YUV video overlay support. | |
275 The supported YUV formats are: YV12, IYUV, YUY2, UYVY, and YVYU. | |
276 This function creates an overlay surface: | |
277 SDL_CreateYUVOverlay() | |
278 You must lock and unlock the overlay to get access to the data: | |
279 SDL_LockYUVOverlay() SDL_UnlockYUVOverlay() | |
280 You can then display the overlay: | |
281 SDL_DisplayYUVOverlay() | |
282 You must free the overlay when you are done using it: | |
283 SDL_FreeYUVOverlay() | |
284 See SDL_video.h for the full function prototypes. | |
285 | |
286 The joystick hat position constants have been changed: | |
287 Old constant New constant | |
288 ------------ ------------ | |
289 0 SDL_HAT_CENTERED | |
290 1 SDL_HAT_UP | |
291 2 SDL_HAT_RIGHTUP | |
292 3 SDL_HAT_RIGHT | |
293 4 SDL_HAT_RIGHTDOWN | |
294 5 SDL_HAT_DOWN | |
295 6 SDL_HAT_LEFTDOWN | |
296 7 SDL_HAT_LEFT | |
297 8 SDL_HAT_LEFTUP | |
298 The new constants are bitmasks, so you can check for the | |
299 individual axes like this: | |
300 if ( hat_position & SDL_HAT_UP ) { | |
301 } | |
302 and you'll catch left-up, up, and right-up. | |
303 | |
304 1.1.2: | |
305 Added multiple timer support: | |
306 SDL_AddTimer() and SDL_RemoveTimer() | |
307 | |
308 SDL_WM_SetIcon() now respects the icon colorkey if mask is NULL. | |
309 | |
310 1.1.0: | |
311 Added initial OpenGL support. | |
312 First set GL attributes (such as RGB depth, alpha depth, etc.) | |
313 SDL_GL_SetAttribute() | |
314 Then call SDL_SetVideoMode() with the SDL_OPENGL flag. | |
315 Perform all of your normal GL drawing. | |
316 Finally swap the buffers with the new SDL function: | |
317 SDL_GL_SwapBuffers() | |
318 See the new 'testgl' test program for an example of using GL with SDL. | |
319 | |
320 You can load GL extension functions by using the function: | |
321 SDL_GL_LoadProcAddress() | |
322 | |
323 Added functions to initialize and cleanup specific SDL subsystems: | |
324 SDL_InitSubSystem() and SDL_QuitSubSystem() | |
325 | |
326 Added user-defined event type: | |
327 typedef struct { | |
328 Uint8 type; | |
329 int code; | |
330 void *data1; | |
331 void *data2; | |
332 } SDL_UserEvent; | |
333 This structure is in the "user" member of an SDL_Event. | |
334 | |
335 Added a function to push events into the event queue: | |
336 SDL_PushEvent() | |
337 | |
338 Example of using the new SDL user-defined events: | |
339 { | |
340 SDL_Event event; | |
341 | |
342 event.type = SDL_USEREVENT; | |
343 event.user.code = my_event_code; | |
344 event.user.data1 = significant_data; | |
345 event.user.data2 = 0; | |
346 SDL_PushEvent(&event); | |
347 } | |
348 | |
349 Added a function to get mouse deltas since last query: | |
350 SDL_GetRelativeMouseState() | |
351 | |
352 Added a boolean datatype to SDL_types.h: | |
353 SDL_bool = { SDL_TRUE, SDL_FALSE } | |
354 | |
355 Added a function to get the current audio status: | |
356 SDL_GetAudioState(); | |
357 It returns one of: | |
358 SDL_AUDIO_STOPPED, | |
359 SDL_AUDIO_PLAYING, | |
360 SDL_AUDIO_PAUSED | |
361 | |
362 Added an AAlib driver (ASCII Art) - by Stephane Peter. | |
363 | |
364 1.0.6: | |
365 The input grab state is reset after each call to SDL_SetVideoMode(). | |
366 The input is grabbed by default in fullscreen mode, and ungrabbed in | |
367 windowed mode. If you want to set input grab to a particular value, | |
368 you should set it after each call to SDL_SetVideoMode(). | |
369 | |
370 1.0.5: | |
371 Exposed SDL_AudioInit(), SDL_VideoInit() | |
372 Added SDL_AudioDriverName() and SDL_VideoDriverName() | |
373 | |
374 Added new window manager function: | |
375 SDL_WM_ToggleFullScreen() | |
376 This is currently implemented only on Linux | |
377 | |
378 The ALT-ENTER code has been removed - it's not appropriate for a | |
379 lib to bind keys when they aren't even emergency escape sequences. | |
380 | |
381 ALT-ENTER functionality can be implemented with the following code: | |
382 | |
383 int Handle_AltEnter(const SDL_Event *event) | |
384 { | |
385 if ( event->type == SDL_KEYDOWN ) { | |
386 if ( (event->key.keysym.sym == SDLK_RETURN) && | |
387 (event->key.keysym.mod & KMOD_ALT) ) { | |
388 SDL_WM_ToggleFullScreen(SDL_GetVideoSurface()); | |
389 return(0); | |
390 } | |
391 } | |
392 return(1); | |
393 } | |
394 SDL_SetEventFilter(Handle_AltEnter); | |
395 | |
396 1.0.3: | |
397 Under X11, if you grab the input and hide the mouse cursor, | |
398 the mouse will go into a "relative motion" mode where you | |
399 will always get relative motion events no matter how far in | |
400 each direction you move the mouse - relative motion is not | |
401 bounded by the edges of the window (though the absolute values | |
402 of the mouse positions are clamped by the size of the window). | |
403 The SVGAlib, framebuffer console, and DirectInput drivers all | |
404 have this behavior naturally, and the GDI and BWindow drivers | |
405 never go into "relative motion" mode. | |
406 | |
407 1.0.2: | |
408 Added a function to enable keyboard repeat: | |
409 SDL_EnableKeyRepeat() | |
410 | |
411 Added a function to grab the mouse and keyboard input | |
412 SDL_WM_GrabInput() | |
413 | |
414 Added a function to iconify the window. | |
415 SDL_WM_IconifyWindow() | |
416 If this function succeeds, the application will receive an event | |
417 signaling SDL_APPACTIVE event | |
418 | |
419 1.0.1: | |
420 Added constants to SDL_audio.h for 16-bit native byte ordering: | |
421 AUDIO_U16SYS, AUDIO_S16SYS | |
422 | |
423 1.0.0: | |
424 New public release | |
425 | |
426 Version 0.11: | |
427 | |
428 0.11.5: | |
429 A new function SDL_GetVideoSurface() has been added, and returns | |
430 a pointer to the current display surface. | |
431 | |
432 SDL_AllocSurface() has been renamed SDL_CreateRGBSurface(), and | |
433 a new function SDL_CreateRGBSurfaceFrom() has been added to allow | |
434 creating an SDL surface from an existing pixel data buffer. | |
435 | |
436 Added SDL_GetRGB() to the headers and documentation. | |
437 | |
438 0.11.4: | |
439 SDL_SetLibraryPath() is no longer meaningful, and has been removed. | |
440 | |
441 0.11.3: | |
442 A new flag for SDL_Init(), SDL_INIT_NOPARACHUTE, prevents SDL from | |
443 installing fatal signal handlers on operating systems that support | |
444 them. | |
445 | |
446 Version 0.9: | |
447 | |
448 0.9.15: | |
449 SDL_CreateColorCursor() has been removed. Color cursors should | |
450 be implemented as sprites, blitted by the application when the | |
451 cursor moves. To get smooth color cursor updates when the app | |
452 is busy, pass the SDL_INIT_EVENTTHREAD flag to SDL_Init(). This | |
453 allows you to handle the mouse motion in another thread from an | |
454 event filter function, but is currently only supported by Linux | |
455 and BeOS. Note that you'll have to protect the display surface | |
456 from multi-threaded access by using mutexes if you do this. | |
457 | |
458 Thread-safe surface support has been removed from SDL. | |
459 This makes blitting somewhat faster, by removing SDL_MiddleBlit(). | |
460 Code that used SDL_MiddleBlit() should use SDL_LowerBlit() instead. | |
461 You can make your surfaces thread-safe by allocating your own | |
462 mutex and making lock/unlock calls around accesses to your surface. | |
463 | |
464 0.9.14: | |
465 SDL_GetMouseState() now takes pointers to int rather than Uint16. | |
466 | |
467 If you set the SDL_WINDOWID environment variable under UNIX X11, | |
468 SDL will use that as the main window instead of creating it's own. | |
469 This is an unsupported extension to SDL, and not portable at all. | |
470 | |
471 0.9.13: | |
472 Added a function SDL_SetLibraryPath() which can be used to specify | |
473 the directory containing the SDL dynamic libraries. This is useful | |
474 for commercial applications which ship with particular versions | |
475 of the libraries, and for security on multi-user systems. | |
476 If this function is not used, the default system directories are | |
477 searched using the native dynamic object loading mechanism. | |
478 | |
479 In order to support C linkage under Visual C++, you must declare | |
480 main() without any return type: | |
481 main(int argc, char *argv[]) { | |
482 /* Do the program... */ | |
483 return(0); | |
484 } | |
485 C++ programs should also return a value if compiled under VC++. | |
486 | |
487 The blit_endian member of the SDL_VideoInfo struct has been removed. | |
488 | |
489 SDL_SymToASCII() has been replaced with SDL_GetKeyName(), so there | |
490 is now no longer any function to translate a keysym to a character. | |
491 | |
492 The SDL_keysym structure has been extended with a 'scancode' and | |
493 'unicode' member. The 'scancode' is a hardware specific scancode | |
494 for the key that was pressed, and may be 0. The 'unicode' member | |
495 is a 16-bit UNICODE translation of the key that was pressed along | |
496 with any modifiers or compose keys that have been pressed. | |
497 If no UNICODE translation exists for the key, 'unicode' will be 0. | |
498 | |
499 Added a function SDL_EnableUNICODE() to enable/disable UNICODE | |
500 translation of character keypresses. Translation defaults off. | |
501 | |
502 To convert existing code to use the new API, change code which | |
503 uses SDL_SymToASCII() to get the keyname to use SDL_GetKeyName(), | |
504 and change code which uses it to get the ASCII value of a sym to | |
505 use the 'unicode' member of the event keysym. | |
506 | |
507 0.9.12: | |
508 There is partial support for 64-bit datatypes. I don't recommend | |
509 you use this if you have a choice, because 64-bit datatypes are not | |
510 supported on many platforms. On platforms for which it is supported, | |
511 the SDL_HAS_64BIT_TYPE C preprocessor define will be enabled, and | |
512 you can use the Uint64 and Sint64 datatypes. | |
513 | |
514 Added functions to SDL_endian.h to support 64-bit datatypes: | |
515 SDL_SwapLE64(), SDL_SwapBE64(), | |
516 SDL_ReadLE64(), SDL_ReadBE64(), SDL_WriteLE64(), SDL_WriteBE64() | |
517 | |
518 A new member "len_ratio" has been added to the SDL_AudioCVT structure, | |
519 and allows you to determine either the original buffer length or the | |
520 converted buffer length, given the other. | |
521 | |
522 A new function SDL_FreeWAV() has been added to the API to free data | |
523 allocated by SDL_LoadWAV_RW(). This is necessary under Win32 since | |
524 the gcc compiled DLL uses a different heap than VC++ compiled apps. | |
525 | |
526 SDL now has initial support for international keyboards using the | |
527 Latin character set. | |
528 If a particular mapping is desired, you can set the DEFAULT_KEYBOARD | |
529 compile-time variable, or you can set the environment variable | |
530 "SDL_KEYBOARD" to a string identifying the keyboard mapping you desire. | |
531 The valid values for these variables can be found in SDL_keyboard.c | |
532 | |
533 Full support for German and French keyboards under X11 is implemented. | |
534 | |
535 0.9.11: | |
536 The THREADED_EVENTS compile-time define has been replaced with the | |
537 SDL_INIT_EVENTTHREAD flag. If this flag is passed to SDL_Init(), | |
538 SDL will create a separate thread to perform input event handling. | |
539 If this flag is passed to SDL_Init(), and the OS doesn't support | |
540 event handling in a separate thread, SDL_Init() will fail. | |
541 Be sure to add calls to SDL_Delay() in your main thread to allow | |
542 the OS to schedule your event thread, or it may starve, leading | |
543 to slow event delivery and/or dropped events. | |
544 Currently MacOS and Win32 do not support this flag, while BeOS | |
545 and Linux do support it. I recommend that your application only | |
546 use this flag if absolutely necessary. | |
547 | |
548 The SDL thread function passed to SDL_CreateThread() now returns a | |
549 status. This status can be retrieved by passing a non-NULL pointer | |
550 as the 'status' argument to SDL_WaitThread(). | |
551 | |
552 The volume parameter to SDL_MixAudio() has been increased in range | |
553 from (0-8) to (0-128) | |
554 | |
555 SDL now has a data source abstraction which can encompass a file, | |
556 an area of memory, or any custom object you can envision. It uses | |
557 these abstractions, SDL_RWops, in the endian read/write functions, | |
558 and the built-in WAV and BMP file loaders. This means you can load | |
559 WAV chunks from memory mapped files, compressed archives, network | |
560 pipes, or anything else that has a data read abstraction. | |
561 | |
562 There are three built-in data source abstractions: | |
563 SDL_RWFromFile(), SDL_RWFromFP(), SDL_RWFromMem() | |
564 along with a generic data source allocation function: | |
565 SDL_AllocRW() | |
566 These data sources can be used like stdio file pointers with the | |
567 following convenience functions: | |
568 SDL_RWseek(), SDL_RWread(), SDL_RWwrite(), SDL_RWclose() | |
569 These functions are defined in the new header file "SDL_rwops.h" | |
570 | |
571 The endian swapping functions have been turned into macros for speed | |
572 and SDL_CalculateEndian() has been removed. SDL_endian.h now defines | |
573 SDL_BYTEORDER as either SDL_BIG_ENDIAN or SDL_LIL_ENDIAN depending on | |
574 the endianness of the host system. | |
575 | |
576 The endian read/write functions now take an SDL_RWops pointer | |
577 instead of a stdio FILE pointer, to support the new data source | |
578 abstraction. | |
579 | |
580 The SDL_*LoadWAV() functions have been replaced with a single | |
581 SDL_LoadWAV_RW() 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_LoadWAV() is a macro for | |
584 backward compatibility and convenience: | |
585 SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...); | |
586 | |
587 The SDL_*LoadBMP()/SDL_*SaveBMP() functions have each been replaced | |
588 with a single function that takes a SDL_RWops pointer as it's | |
589 first parameter, and a flag whether or not to automatically | |
590 free it as the second parameter. SDL_LoadBMP() and SDL_SaveBMP() | |
591 are macros for backward compatibility and convenience: | |
592 SDL_LoadBMP_RW(SDL_RWFromFile("sample.bmp", "rb"), 1, ...); | |
593 SDL_SaveBMP_RW(SDL_RWFromFile("sample.bmp", "wb"), 1, ...); | |
594 Note that these functions use SDL_RWseek() extensively, and should | |
595 not be used on pipes or other non-seekable data sources. | |
596 | |
597 0.9.10: | |
598 The Linux SDL_SysWMInfo and SDL_SysWMMsg structures have been | |
599 extended to support multiple types of display drivers, as well as | |
600 safe access to the X11 display when THREADED_EVENTS is enabled. | |
601 The new structures are documented in the SDL_syswm.h header file. | |
602 | |
603 Thanks to John Elliott <jce@seasip.demon.co.uk>, the UK keyboard | |
604 should now work properly, as well as the "Windows" keys on US | |
605 keyboards. | |
606 | |
607 The Linux CD-ROM code now reads the CD-ROM devices from /etc/fstab | |
608 instead of trying to open each block device on the system. | |
609 The CD must be listed in /etc/fstab as using the iso9660 filesystem. | |
610 | |
611 On Linux, if you define THREADED_EVENTS at compile time, a separate | |
612 thread will be spawned to gather X events asynchronously from the | |
613 graphics updates. This hasn't been extensively tested, but it does | |
614 provide a means of handling keyboard and mouse input in a separate | |
615 thread from the graphics thread. (This is now enabled by default.) | |
616 | |
617 A special access function SDL_PeepEvents() allows you to manipulate | |
618 the event queue in a thread-safe manner, including peeking at events, | |
619 removing events of a specified type, and adding new events of arbitrary | |
620 type to the queue (use the new 'user' member of the SDL_Event type). | |
621 | |
622 If you use SDL_PeepEvents() to gather events, then the main graphics | |
623 thread needs to call SDL_PumpEvents() periodically to drive the event | |
624 loop and generate input events. This is not necessary if SDL has been | |
625 compiled with THREADED_EVENTS defined, but doesn't hurt. | |
626 | |
627 A new function SDL_ThreadID() returns the identifier associated with | |
628 the current thread. | |
629 | |
630 0.9.9: | |
631 The AUDIO_STEREO format flag has been replaced with a new 'channels' | |
632 member of the SDL_AudioSpec structure. The channels are 1 for mono | |
633 audio, and 2 for stereo audio. In the future more channels may be | |
634 supported for 3D surround sound. | |
635 | |
636 The SDL_MixAudio() function now takes an additional volume parameter, | |
637 which should be set to SDL_MIX_MAXVOLUME for compatibility with the | |
638 original function. | |
639 | |
640 The CD-ROM functions which take a 'cdrom' parameter can now be | |
641 passed NULL, and will act on the last successfully opened CD-ROM. | |
642 | |
643 0.9.8: | |
644 No changes, bugfixes only. | |
645 | |
646 0.9.7: | |
647 No changes, bugfixes only. | |
648 | |
649 0.9.6: | |
650 Added a fast rectangle fill function: SDL_FillRect() | |
651 | |
652 Addition of a useful function for getting info on the video hardware: | |
653 const SDL_VideoInfo *SDL_GetVideoInfo(void) | |
654 This function replaces SDL_GetDisplayFormat(). | |
655 | |
656 Initial support for double-buffering: | |
657 Use the SDL_DOUBLEBUF flag in SDL_SetVideoMode() | |
658 Update the screen with a new function: SDL_Flip() | |
659 | |
660 SDL_AllocSurface() takes two new flags: | |
661 SDL_SRCCOLORKEY means that the surface will be used for colorkey blits | |
662 and if the hardware supports hardware acceleration of colorkey blits | |
663 between two surfaces in video memory, to place the surface in video | |
664 memory if possible, otherwise it will be placed in system memory. | |
665 SDL_SRCALPHA means that the surface will be used for alpha blits and | |
666 if the hardware supports hardware acceleration of alpha blits between | |
667 two surfaces in video memory, to place the surface in video memory | |
668 if possible, otherwise it will be placed in system memory. | |
669 SDL_HWSURFACE now means that the surface will be created with the | |
670 same format as the display surface, since having surfaces in video | |
671 memory is only useful for fast blitting to the screen, and you can't | |
672 blit surfaces with different surface formats in video memory. | |
673 | |
674 0.9.5: | |
675 You can now pass a NULL mask to SDL_WM_SetIcon(), and it will assume | |
676 that the icon consists of the entire image. | |
677 | |
678 SDL_LowerBlit() is back -- but don't use it on the display surface. | |
679 It is exactly the same as SDL_MiddleBlit(), but doesn't check for | |
680 thread safety. | |
681 | |
682 Added SDL_FPLoadBMP(), SDL_FPSaveBMP(), SDL_FPLoadWAV(), which take | |
683 a FILE pointer instead of a file name. | |
684 | |
685 Added CD-ROM audio control API: | |
686 SDL_CDNumDrives() | |
687 SDL_CDName() | |
688 SDL_CDOpen() | |
689 SDL_CDStatus() | |
690 SDL_CDPlayTracks() | |
691 SDL_CDPlay() | |
692 SDL_CDPause() | |
693 SDL_CDResume() | |
694 SDL_CDStop() | |
695 SDL_CDEject() | |
696 SDL_CDClose() | |
697 | |
698 0.9.4: | |
699 No changes, bugfixes only. | |
700 | |
701 0.9.3: | |
702 Mouse motion event now includes relative motion information: | |
703 Sint16 event->motion.xrel, Sint16 event->motion.yrel | |
704 | |
705 X11 keyrepeat handling can be disabled by defining IGNORE_X_KEYREPEAT | |
706 (Add -DIGNORE_X_KEYREPEAT to CFLAGS line in obj/x11Makefile) | |
707 | |
708 0.9.2: | |
709 No changes, bugfixes only. | |
710 | |
711 0.9.1: | |
712 Removed SDL_MapSurface() and SDL_UnmapSurface() -- surfaces are now | |
713 automatically mapped on blit. | |
714 | |
715 0.8.0: | |
716 SDL stable release |