WhatsNew
author Sam Lantinga <slouken@libsdl.org>
Wed, 06 Mar 2002 05:20:11 +0000
changeset 294 d2d48e10f370
parent 292 eadc0746dfaf
child 296 fab1ddc4d7bf
permissions -rw-r--r--
Added a new header file: SDL_loadso.h It contains the following functions: SDL_LoadObject(), SDL_LoadFunction(), SDL_UnloadObject() The UNIX esd and arts audio code use these to dynamically load their respective audio libraries.
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This is a list of API changes in SDL's version history.
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Version 1.0:
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1.2.4:
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	Added a new header file: SDL_loadso.h
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	It contains the following functions:
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		SDL_LoadObject(), SDL_LoadFunction(), SDL_UnloadObject()
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	The UNIX esd and arts audio code use these to dynamically load
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	their respective audio libraries.
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	Added SDL_LockRect() and SDL_UnlockRect() to lock a portion of a
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	surface.  This may be more efficient than a full lock if you are
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	using a hardware surface and plan to make a few changes to small
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	areas in the surface.
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1.2.0:
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	Added SDL_VIDEOEXPOSE event to signal that the screen needs to
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	be redrawn.  This is currently only delivered to OpenGL windows
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	on X11, though it may be delivered in the future when the video
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	memory is lost under DirectX.
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1.1.8:
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	You can pass SDL_NOFRAME to SDL_VideoMode() to create a window
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	that has no title bar or frame decoration.  Fullscreen video
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	modes automatically have this flag set.
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	Added a function to query the clipping rectangle for a surface:
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		void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect)
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	Added a function to query the current event filter:
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		SDL_EventFilter SDL_GetEventFilter(void)
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	If you pass -1 to SDL_ShowCursor(), it won't change the current
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	cursor visibility state, but will still return it.
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	SDL_LockSurface() and SDL_UnlockSurface() are recursive, meaning
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	you can nest them as deep as you want, as long as each lock call
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	has a matching unlock call.  The surface remains locked until the
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	last matching unlock call.
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	Note that you may not blit to or from a locked surface.
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1.1.7:
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	The SDL_SetGammaRamp() and SDL_GetGammaRamp() functions now take
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	arrays of Uint16 values instead of Uint8 values.  For the most part,
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	you can just take your old values and shift them up 8 bits to get
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	new correct values for your gamma ramps.
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	You can pass SDL_RLEACCEL in flags passed to SDL_ConvertSurface()
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        and SDL will try to RLE accelerate colorkey and alpha blits in the
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	resulting surface.
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1.1.6:
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	Added a function to return the thread ID of a specific thread:
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		Uint32 SDL_GetThreadID(SDL_Thread *thread)
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	If 'thread' is NULL, this function returns the id for this thread.
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1.1.5:
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	The YUV overlay structure has been changed to use an array of
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	pitches and pixels representing the planes of a YUV image, to
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	better enable hardware acceleration.  The YV12 and IYUV formats
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	each have three planes, corresponding to the Y, U, and V portions
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	of the image, while packed pixel YUV formats just have one plane.
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	For palettized mode (8bpp), the screen colormap is now split in
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	a physical and a logical palette. The physical palette determines
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	what colours the screen pixels will get when displayed, and the
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	logical palette controls the mapping from blits to/from the screen.
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	A new function, SDL_SetPalette() has been added to change
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	logical and physical palettes separately. SDL_SetColors() works
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	just as before, and is equivalent to calling SDL_SetPalette() with
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	a flag argument of (SDL_LOGPAL|SDL_PHYSPAL).
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	SDL_BlitSurface() no longer modifies the source rectangle, only the
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	destination rectangle. The width/height members of the destination
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	rectangle are ignored, only the position is used.
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	The old source clipping function SDL_SetClipping() has been replaced
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	with a more useful function to set the destination clipping rectangle:
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		SDL_bool SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect)
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	Added a function to see what subsystems have been initialized:
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		Uint32 SDL_WasInit(Uint32 flags)
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	The Big Alpha Flip: SDL now treats alpha as opacity like everybody
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	else, and not as transparency:
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	A new cpp symbol: SDL_ALPHA_OPAQUE is defined as 255
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	A new cpp symbol: SDL_ALPHA_TRANSPARENT is defined as 0
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	Values between 0 and 255 vary from fully transparent to fully opaque.
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	New functions:
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	SDL_DisplayFormatAlpha()
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	    Returns a surface converted to a format with alpha-channel
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	    that can be blit efficiently to the screen. (In other words,
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	    like SDL_DisplayFormat() but the resulting surface has
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	    an alpha channel.)  This is useful for surfaces with alpha.
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	SDL_MapRGBA()
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	    Works as SDL_MapRGB() but takes an additional alpha parameter.
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	SDL_GetRGBA()
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	    Works as SDL_GetRGB() but also returns the alpha value
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	    (SDL_ALPHA_OPAQUE for formats without an alpha channel)
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	Both SDL_GetRGB() and SDL_GetRGBA() now always return values in
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	the [0..255] interval. Previously, SDL_GetRGB() would return
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	(0xf8, 0xfc, 0xf8) for a completely white pixel in RGB565 format.
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	(N.B.: This is broken for bit fields < 3 bits.)
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	SDL_MapRGB() returns pixels in which the alpha channel is set opaque.
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	SDL_SetAlpha() can now be used for both setting the per-surface
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	alpha, using the new way of thinking of alpha, and also to enable
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	and disable per-pixel alpha blending for surfaces with an alpha
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	channel:
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		To disable alpha blending:
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			SDL_SetAlpha(surface, 0, 0);
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		To re-enable alpha blending:
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			SDL_SetAlpha(surface, SDL_SRCALPHA, 0);
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	Surfaces with an alpha channel have blending enabled by default.
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	SDL_SetAlpha() now accepts SDL_RLEACCEL as a flag, which requests
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	RLE acceleration of blits, just as like with SDL_SetColorKey().
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	This flag can be set for both surfaces with an alpha channel
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	and surfaces with an alpha value set by SDL_SetAlpha().
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	As always, RLE surfaces must be locked before pixel access is
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	allowed, and unlocked before any other SDL operations are done
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	on it.
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	The blit semantics for surfaces with and without alpha and colorkey
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	have now been defined:
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	RGBA->RGB:
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	    SDL_SRCALPHA set:
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		alpha-blend (using alpha-channel).
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		SDL_SRCCOLORKEY ignored.
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	    SDL_SRCALPHA not set:
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		copy RGB.
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		if SDL_SRCCOLORKEY set, only copy the pixels matching the
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		RGB values of the source colour key, ignoring alpha in the
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		comparison.
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	RGB->RGBA:
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	    SDL_SRCALPHA set:
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		alpha-blend (using the source per-surface alpha value);
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		set destination alpha to opaque.
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	    SDL_SRCALPHA not set:
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		copy RGB, set destination alpha to opaque.
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	    both:
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		if SDL_SRCCOLORKEY set, only copy the pixels matching the
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		source colour key.
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	RGBA->RGBA:
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	    SDL_SRCALPHA set:
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		alpha-blend (using the source alpha channel) the RGB values;
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		leave destination alpha untouched. [Note: is this correct?]
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		SDL_SRCCOLORKEY ignored.
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	    SDL_SRCALPHA not set:
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		copy all of RGBA to the destination.
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		if SDL_SRCCOLORKEY set, only copy the pixels matching the
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		RGB values of the source colour key, ignoring alpha in the
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		comparison.
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	RGB->RGB: 
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	    SDL_SRCALPHA set:
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		alpha-blend (using the source per-surface alpha value).
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	    SDL_SRCALPHA not set:
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		copy RGB.
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	    both:
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		if SDL_SRCCOLORKEY set, only copy the pixels matching the
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		source colour key.
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	As a special case, blits from surfaces with per-surface alpha
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	value of 128 (50% transparency) are optimised and much faster
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	than other alpha values. This does not apply to surfaces with
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	alpha channels (per-pixel alpha).
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	New functions for manipulating the gamma of the display have
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	been added:
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		int SDL_SetGamma(float red, float green, float blue);
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		int SDL_SetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue);
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		int SDL_GetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue);
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	Gamma ramps are tables with 256 entries which map the screen color
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	components into actually displayed colors.  For an example of
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	implementing gamma correction and gamma fades, see test/testgamma.c
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	Gamma control is not supported on all hardware.
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1.1.4:
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	The size of the SDL_CDtrack structure changed from 8 to 12 bytes
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	as the size of the length member was extended to 32 bits.
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        You can now use SDL for 2D blitting with a GL mode by passing the
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	SDL_OPENGLBLIT flag to SDL_SetVideoMode().  You can specify 16 or
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	32 bpp, and the data in the framebuffer is put into the GL scene
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	when you call SDL_UpdateRects(), and the scene will be visible
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	when you call SDL_GL_SwapBuffers().
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	Run the "testgl" test program with the -logo command line option
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	to see an example of this blending of 2D and 3D in SDL.
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1.1.3:
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	Added SDL_FreeRW() to the API, to complement SDL_AllocRW()
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	Added resizable window support - just add SDL_RESIZABLE to the
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	SDL_SetVideoMode() flags, and then wait for SDL_VIDEORESIZE events.
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	See SDL_events.h for details on the new SDL_ResizeEvent structure.
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	Added condition variable support, based on mutexes and semaphores.
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		SDL_CreateCond()
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		SDL_DestroyCond()
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		SDL_CondSignal()
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		SDL_CondBroadcast()
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		SDL_CondWait()
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		SDL_CondTimedWait()
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	The new function prototypes are in SDL_mutex.h
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	Added counting semaphore support, based on the mutex primitive.
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		SDL_CreateSemaphore()
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		SDL_DestroySemaphore()
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		SDL_SemWait()
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		SDL_SemTryWait()
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		SDL_SemWaitTimeout()
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		SDL_SemPost()
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		SDL_SemValue()
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	The new function prototypes are in SDL_mutex.h
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	Added support for asynchronous blitting.  To take advantage of this,
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	you must set the SDL_ASYNCBLIT flag when setting the video mode and
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	creating surfaces that you want accelerated in this way.  You must
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	lock surfaces that have this flag set, and the lock will block until
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	any queued blits have completed.
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	Added YUV video overlay support.
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	The supported YUV formats are: YV12, IYUV, YUY2, UYVY, and YVYU.
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	This function creates an overlay surface:
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		SDL_CreateYUVOverlay()
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	You must lock and unlock the overlay to get access to the data:
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		SDL_LockYUVOverlay() SDL_UnlockYUVOverlay()
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	You can then display the overlay:
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		SDL_DisplayYUVOverlay()
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	You must free the overlay when you are done using it:
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		SDL_FreeYUVOverlay()
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	See SDL_video.h for the full function prototypes.
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	The joystick hat position constants have been changed:
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	Old constant            New constant
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	------------            ------------
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	     0                  SDL_HAT_CENTERED
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	     1                  SDL_HAT_UP
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	     2                  SDL_HAT_RIGHTUP
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	     3                  SDL_HAT_RIGHT
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	     4                  SDL_HAT_RIGHTDOWN
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	     5                  SDL_HAT_DOWN
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	     6                  SDL_HAT_LEFTDOWN
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	     7                  SDL_HAT_LEFT
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	     8                  SDL_HAT_LEFTUP
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	The new constants are bitmasks, so you can check for the
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	individual axes like this:
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		if ( hat_position & SDL_HAT_UP ) {
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		}
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	and you'll catch left-up, up, and right-up.
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1.1.2:
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	Added multiple timer support:
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		SDL_AddTimer() and SDL_RemoveTimer()
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	SDL_WM_SetIcon() now respects the icon colorkey if mask is NULL.
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1.1.0:
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	Added initial OpenGL support.
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	First set GL attributes (such as RGB depth, alpha depth, etc.)
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		SDL_GL_SetAttribute()
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	Then call SDL_SetVideoMode() with the SDL_OPENGL flag.
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	Perform all of your normal GL drawing.
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	Finally swap the buffers with the new SDL function:
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		SDL_GL_SwapBuffers()
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	See the new 'testgl' test program for an example of using GL with SDL.
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	You can load GL extension functions by using the function:
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		SDL_GL_LoadProcAddress()
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	Added functions to initialize and cleanup specific SDL subsystems:
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		SDL_InitSubSystem() and SDL_QuitSubSystem()
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	Added user-defined event type:
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		typedef struct {
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        		Uint8 type;
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        		int code;
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        		void *data1;
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        		void *data2;
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		} SDL_UserEvent;
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	This structure is in the "user" member of an SDL_Event.
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	Added a function to push events into the event queue:
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		SDL_PushEvent()
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	Example of using the new SDL user-defined events:
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	{
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		SDL_Event event;
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		event.type = SDL_USEREVENT;
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		event.user.code = my_event_code;
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		event.user.data1 = significant_data;
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		event.user.data2 = 0;
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		SDL_PushEvent(&event);
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	}
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	Added a function to get mouse deltas since last query:
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		SDL_GetRelativeMouseState()
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	Added a boolean datatype to SDL_types.h:
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		SDL_bool = { SDL_TRUE, SDL_FALSE }
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	Added a function to get the current audio status:
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		SDL_GetAudioState();
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	It returns one of:
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		SDL_AUDIO_STOPPED,
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		SDL_AUDIO_PLAYING,
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		SDL_AUDIO_PAUSED
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	Added an AAlib driver (ASCII Art) - by Stephane Peter.
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1.0.6:
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	The input grab state is reset after each call to SDL_SetVideoMode().
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	The input is grabbed by default in fullscreen mode, and ungrabbed in
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	windowed mode.  If you want to set input grab to a particular value,
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	you should set it after each call to SDL_SetVideoMode().
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   329
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1.0.5:
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   331
	Exposed SDL_AudioInit(), SDL_VideoInit()
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	Added SDL_AudioDriverName() and SDL_VideoDriverName()
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   333
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	Added new window manager function:
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		SDL_WM_ToggleFullScreen()
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   336
	This is currently implemented only on Linux
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   337
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   338
	The ALT-ENTER code has been removed - it's not appropriate for a
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   339
	lib to bind keys when they aren't even emergency escape sequences.
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   340
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   341
	ALT-ENTER functionality can be implemented with the following code:
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   342
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   343
	int Handle_AltEnter(const SDL_Event *event)
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	{
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	    if ( event->type == SDL_KEYDOWN ) {
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	        if ( (event->key.keysym.sym == SDLK_RETURN) &&
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   347
	             (event->key.keysym.mod & KMOD_ALT) ) {   
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	                SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
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   349
	                return(0);
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   350
	        }
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	    }
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	    return(1);
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   353
	}
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   354
	SDL_SetEventFilter(Handle_AltEnter);
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   355
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   356
1.0.3:
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   357
	Under X11, if you grab the input and hide the mouse cursor,
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   358
	the mouse will go into a "relative motion" mode where you
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   359
	will always get relative motion events no matter how far in
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   360
	each direction you move the mouse - relative motion is not
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   361
	bounded by the edges of the window (though the absolute values
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   362
	of the mouse positions are clamped by the size of the window).
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diff changeset
   363
	The SVGAlib, framebuffer console, and DirectInput drivers all
74212992fb08 Initial revision
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diff changeset
   364
	have this behavior naturally, and the GDI and BWindow drivers
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   365
	never go into "relative motion" mode.
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   366
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   367
1.0.2:
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   368
	Added a function to enable keyboard repeat:
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   369
		SDL_EnableKeyRepeat()
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   370
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   371
	Added a function to grab the mouse and keyboard input
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   372
		SDL_WM_GrabInput()
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   373
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   374
	Added a function to iconify the window.
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   375
		SDL_WM_IconifyWindow()
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   376
	If this function succeeds, the application will receive an event
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   377
	signaling SDL_APPACTIVE event 
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diff changeset
   378
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   379
1.0.1:
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diff changeset
   380
	Added constants to SDL_audio.h for 16-bit native byte ordering:
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diff changeset
   381
		AUDIO_U16SYS, AUDIO_S16SYS
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   382
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diff changeset
   383
1.0.0:
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parents:
diff changeset
   384
	New public release
74212992fb08 Initial revision
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parents:
diff changeset
   385
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diff changeset
   386
Version 0.11:
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diff changeset
   387
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diff changeset
   388
0.11.5:
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parents:
diff changeset
   389
	A new function SDL_GetVideoSurface() has been added, and returns
74212992fb08 Initial revision
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parents:
diff changeset
   390
	a pointer to the current display surface.
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parents:
diff changeset
   391
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diff changeset
   392
	SDL_AllocSurface() has been renamed SDL_CreateRGBSurface(), and
74212992fb08 Initial revision
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parents:
diff changeset
   393
	a new function SDL_CreateRGBSurfaceFrom() has been added to allow
74212992fb08 Initial revision
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parents:
diff changeset
   394
	creating an SDL surface from an existing pixel data buffer.
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parents:
diff changeset
   395
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parents:
diff changeset
   396
	Added SDL_GetRGB() to the headers and documentation.
74212992fb08 Initial revision
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parents:
diff changeset
   397
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parents:
diff changeset
   398
0.11.4:
74212992fb08 Initial revision
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parents:
diff changeset
   399
	SDL_SetLibraryPath() is no longer meaningful, and has been removed.
74212992fb08 Initial revision
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parents:
diff changeset
   400
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parents:
diff changeset
   401
0.11.3:
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parents:
diff changeset
   402
	A new flag for SDL_Init(), SDL_INIT_NOPARACHUTE, prevents SDL from
74212992fb08 Initial revision
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parents:
diff changeset
   403
	installing fatal signal handlers on operating systems that support
74212992fb08 Initial revision
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parents:
diff changeset
   404
	them.
74212992fb08 Initial revision
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parents:
diff changeset
   405
74212992fb08 Initial revision
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parents:
diff changeset
   406
Version 0.9:
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parents:
diff changeset
   407
74212992fb08 Initial revision
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parents:
diff changeset
   408
0.9.15:
74212992fb08 Initial revision
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parents:
diff changeset
   409
	SDL_CreateColorCursor() has been removed.  Color cursors should
74212992fb08 Initial revision
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parents:
diff changeset
   410
	be implemented as sprites, blitted by the application when the
74212992fb08 Initial revision
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parents:
diff changeset
   411
	cursor moves.  To get smooth color cursor updates when the app
74212992fb08 Initial revision
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parents:
diff changeset
   412
	is busy, pass the SDL_INIT_EVENTTHREAD flag to SDL_Init().  This
74212992fb08 Initial revision
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parents:
diff changeset
   413
	allows you to handle the mouse motion in another thread from an
74212992fb08 Initial revision
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parents:
diff changeset
   414
	event filter function, but is currently only supported by Linux
74212992fb08 Initial revision
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parents:
diff changeset
   415
	and BeOS.  Note that you'll have to protect the display surface
74212992fb08 Initial revision
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parents:
diff changeset
   416
	from multi-threaded access by using mutexes if you do this.
74212992fb08 Initial revision
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parents:
diff changeset
   417
74212992fb08 Initial revision
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parents:
diff changeset
   418
	Thread-safe surface support has been removed from SDL.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   419
	This makes blitting somewhat faster, by removing SDL_MiddleBlit().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   420
	Code that used SDL_MiddleBlit() should use SDL_LowerBlit() instead.
74212992fb08 Initial revision
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parents:
diff changeset
   421
	You can make your surfaces thread-safe by allocating your own
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   422
	mutex and making lock/unlock calls around accesses to your surface.
74212992fb08 Initial revision
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parents:
diff changeset
   423
74212992fb08 Initial revision
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parents:
diff changeset
   424
0.9.14:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   425
	SDL_GetMouseState() now takes pointers to int rather than Uint16.
74212992fb08 Initial revision
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parents:
diff changeset
   426
74212992fb08 Initial revision
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parents:
diff changeset
   427
	If you set the SDL_WINDOWID environment variable under UNIX X11,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   428
	SDL will use that as the main window instead of creating it's own.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   429
	This is an unsupported extension to SDL, and not portable at all.
74212992fb08 Initial revision
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parents:
diff changeset
   430
74212992fb08 Initial revision
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parents:
diff changeset
   431
0.9.13:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   432
	Added a function SDL_SetLibraryPath() which can be used to specify
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   433
	the directory containing the SDL dynamic libraries.  This is useful
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   434
	for commercial applications which ship with particular versions
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   435
	of the libraries, and for security on multi-user systems.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   436
	If this function is not used, the default system directories are 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   437
	searched using the native dynamic object loading mechanism.
74212992fb08 Initial revision
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parents:
diff changeset
   438
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   439
	In order to support C linkage under Visual C++, you must declare
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   440
	main() without any return type:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   441
		main(int argc, char *argv[]) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   442
			/* Do the program... */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   443
			return(0);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   444
		}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   445
	C++ programs should also return a value if compiled under VC++.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   446
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   447
	The blit_endian member of the SDL_VideoInfo struct has been removed.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   448
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   449
	SDL_SymToASCII() has been replaced with SDL_GetKeyName(), so there
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   450
	is now no longer any function to translate a keysym to a character.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   451
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   452
	The SDL_keysym structure has been extended with a 'scancode' and
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   453
	'unicode' member.  The 'scancode' is a hardware specific scancode
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   454
	for the key that was pressed, and may be 0.  The 'unicode' member
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   455
	is a 16-bit UNICODE translation of the key that was pressed along
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   456
	with any modifiers or compose keys that have been pressed.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   457
	If no UNICODE translation exists for the key, 'unicode' will be 0.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   458
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   459
	Added a function SDL_EnableUNICODE() to enable/disable UNICODE
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   460
	translation of character keypresses.  Translation defaults off.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   461
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   462
	To convert existing code to use the new API, change code which
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   463
	uses SDL_SymToASCII() to get the keyname to use SDL_GetKeyName(),
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   464
	and change code which uses it to get the ASCII value of a sym to
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   465
	use the 'unicode' member of the event keysym.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   466
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   467
0.9.12:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   468
	There is partial support for 64-bit datatypes.  I don't recommend 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   469
	you use this if you have a choice, because 64-bit datatypes are not
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   470
	supported on many platforms.  On platforms for which it is supported,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   471
	the SDL_HAS_64BIT_TYPE C preprocessor define will be enabled, and
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   472
	you can use the Uint64 and Sint64 datatypes.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   473
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   474
	Added functions to SDL_endian.h to support 64-bit datatypes:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   475
	    SDL_SwapLE64(), SDL_SwapBE64(),
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   476
	    SDL_ReadLE64(), SDL_ReadBE64(), SDL_WriteLE64(), SDL_WriteBE64()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   477
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   478
	A new member "len_ratio" has been added to the SDL_AudioCVT structure,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   479
	and allows you to determine either the original buffer length or the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   480
	converted buffer length, given the other.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   481
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   482
	A new function SDL_FreeWAV() has been added to the API to free data
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   483
	allocated by SDL_LoadWAV_RW().  This is necessary under Win32 since
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   484
	the gcc compiled DLL uses a different heap than VC++ compiled apps.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   485
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   486
	SDL now has initial support for international keyboards using the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   487
	Latin character set.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   488
	If a particular mapping is desired, you can set the DEFAULT_KEYBOARD
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   489
	compile-time variable, or you can set the environment variable 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   490
	"SDL_KEYBOARD" to a string identifying the keyboard mapping you desire.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   491
	The valid values for these variables can be found in SDL_keyboard.c
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   492
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   493
	Full support for German and French keyboards under X11 is implemented.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   494
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   495
0.9.11:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   496
	The THREADED_EVENTS compile-time define has been replaced with the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   497
	SDL_INIT_EVENTTHREAD flag.  If this flag is passed to SDL_Init(),
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   498
	SDL will create a separate thread to perform input event handling.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   499
	If this flag is passed to SDL_Init(), and the OS doesn't support 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   500
	event handling in a separate thread, SDL_Init() will fail.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   501
	Be sure to add calls to SDL_Delay() in your main thread to allow
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   502
	the OS to schedule your event thread, or it may starve, leading
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   503
	to slow event delivery and/or dropped events.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   504
	Currently MacOS and Win32 do not support this flag, while BeOS 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   505
	and Linux do support it.  I recommend that your application only
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   506
	use this flag if absolutely necessary.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   507
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   508
	The SDL thread function passed to SDL_CreateThread() now returns a
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   509
	status.  This status can be retrieved by passing a non-NULL pointer
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   510
	as the 'status' argument to SDL_WaitThread().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   511
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   512
	The volume parameter to SDL_MixAudio() has been increased in range
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   513
	from (0-8) to (0-128)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   514
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   515
	SDL now has a data source abstraction which can encompass a file,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   516
	an area of memory, or any custom object you can envision.  It uses
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   517
	these abstractions, SDL_RWops, in the endian read/write functions,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   518
	and the built-in WAV and BMP file loaders.  This means you can load
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   519
	WAV chunks from memory mapped files, compressed archives, network
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   520
	pipes, or anything else that has a data read abstraction.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   521
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   522
	There are three built-in data source abstractions:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   523
	    SDL_RWFromFile(), SDL_RWFromFP(), SDL_RWFromMem()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   524
	along with a generic data source allocation function:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   525
	    SDL_AllocRW()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   526
	These data sources can be used like stdio file pointers with the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   527
	following convenience functions:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   528
	    SDL_RWseek(), SDL_RWread(), SDL_RWwrite(), SDL_RWclose()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   529
	These functions are defined in the new header file "SDL_rwops.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   530
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   531
	The endian swapping functions have been turned into macros for speed
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   532
	and SDL_CalculateEndian() has been removed.  SDL_endian.h now defines
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   533
	SDL_BYTEORDER as either SDL_BIG_ENDIAN or SDL_LIL_ENDIAN depending on
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   534
	the endianness of the host system.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   535
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   536
	The endian read/write functions now take an SDL_RWops pointer
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   537
	instead of a stdio FILE pointer, to support the new data source
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   538
	abstraction.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   539
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   540
	The SDL_*LoadWAV() functions have been replaced with a single
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   541
	SDL_LoadWAV_RW() function that takes a SDL_RWops pointer as it's
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   542
	first parameter, and a flag whether or not to automatically 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   543
	free it as the second parameter.  SDL_LoadWAV() is a macro for
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   544
	backward compatibility and convenience:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   545
	    SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   546
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   547
	The SDL_*LoadBMP()/SDL_*SaveBMP() functions have each been replaced
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   548
	with a single function that takes a SDL_RWops pointer as it's
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   549
	first parameter, and a flag whether or not to automatically 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   550
	free it as the second parameter.  SDL_LoadBMP() and SDL_SaveBMP()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   551
	are macros for backward compatibility and convenience:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   552
	    SDL_LoadBMP_RW(SDL_RWFromFile("sample.bmp", "rb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   553
	    SDL_SaveBMP_RW(SDL_RWFromFile("sample.bmp", "wb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   554
	Note that these functions use SDL_RWseek() extensively, and should
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   555
	not be used on pipes or other non-seekable data sources.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   556
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   557
0.9.10:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   558
	The Linux SDL_SysWMInfo and SDL_SysWMMsg structures have been 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   559
	extended to support multiple types of display drivers, as well as
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   560
        safe access to the X11 display when THREADED_EVENTS is enabled.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   561
        The new structures are documented in the SDL_syswm.h header file.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   562
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   563
	Thanks to John Elliott <jce@seasip.demon.co.uk>, the UK keyboard
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   564
	should now work properly, as well as the "Windows" keys on US
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   565
	keyboards.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   566
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   567
	The Linux CD-ROM code now reads the CD-ROM devices from /etc/fstab
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   568
	instead of trying to open each block device on the system.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   569
	The CD must be listed in /etc/fstab as using the iso9660 filesystem.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   570
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   571
	On Linux, if you define THREADED_EVENTS at compile time, a separate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   572
	thread will be spawned to gather X events asynchronously from the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   573
	graphics updates.  This hasn't been extensively tested, but it does
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   574
	provide a means of handling keyboard and mouse input in a separate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   575
	thread from the graphics thread.  (This is now enabled by default.)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   576
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   577
	A special access function SDL_PeepEvents() allows you to manipulate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   578
	the event queue in a thread-safe manner, including peeking at events,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   579
	removing events of a specified type, and adding new events of arbitrary
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   580
	type to the queue (use the new 'user' member of the SDL_Event type).
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   581
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   582
	If you use SDL_PeepEvents() to gather events, then the main graphics
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   583
	thread needs to call SDL_PumpEvents() periodically to drive the event
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   584
	loop and generate input events.  This is not necessary if SDL has been 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   585
	compiled with THREADED_EVENTS defined, but doesn't hurt.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   586
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   587
	A new function SDL_ThreadID() returns the identifier associated with
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   588
	the current thread.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   589
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   590
0.9.9:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   591
	The AUDIO_STEREO format flag has been replaced with a new 'channels'
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   592
	member of the SDL_AudioSpec structure.  The channels are 1 for mono
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   593
	audio, and 2 for stereo audio.  In the future more channels may be
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   594
	supported for 3D surround sound.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   595
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   596
	The SDL_MixAudio() function now takes an additional volume parameter,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   597
	which should be set to SDL_MIX_MAXVOLUME for compatibility with the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   598
	original function.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   599
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   600
	The CD-ROM functions which take a 'cdrom' parameter can now be
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   601
	passed NULL, and will act on the last successfully opened CD-ROM.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   602
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   603
0.9.8:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   604
	No changes, bugfixes only.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   605
	
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   606
0.9.7:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   607
	No changes, bugfixes only.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   608
	
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   609
0.9.6:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   610
	Added a fast rectangle fill function: SDL_FillRect()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   611
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   612
	Addition of a useful function for getting info on the video hardware:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   613
	    const SDL_VideoInfo *SDL_GetVideoInfo(void)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   614
        This function replaces SDL_GetDisplayFormat().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   615
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   616
	Initial support for double-buffering:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   617
	  Use the SDL_DOUBLEBUF flag in SDL_SetVideoMode()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   618
	  Update the screen with a new function: SDL_Flip()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   619
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   620
	SDL_AllocSurface() takes two new flags:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   621
	SDL_SRCCOLORKEY means that the surface will be used for colorkey blits
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   622
	  and if the hardware supports hardware acceleration of colorkey blits
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   623
	  between two surfaces in video memory, to place the surface in video
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   624
	  memory if possible, otherwise it will be placed in system memory.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   625
	SDL_SRCALPHA means that the surface will be used for alpha blits and
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   626
	  if the hardware supports hardware acceleration of alpha blits between
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   627
	  two surfaces in video memory, to place the surface in video memory
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   628
	  if possible, otherwise it will be placed in system memory.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   629
	SDL_HWSURFACE now means that the surface will be created with the 
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   630
	  same format as the display surface, since having surfaces in video
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   631
	  memory is only useful for fast blitting to the screen, and you can't
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   632
	  blit surfaces with different surface formats in video memory.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   633
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   634
0.9.5:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   635
	You can now pass a NULL mask to SDL_WM_SetIcon(), and it will assume
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   636
	that the icon consists of the entire image.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   637
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   638
	SDL_LowerBlit() is back -- but don't use it on the display surface.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   639
	It is exactly the same as SDL_MiddleBlit(), but doesn't check for
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   640
	thread safety.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   641
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   642
	Added SDL_FPLoadBMP(), SDL_FPSaveBMP(), SDL_FPLoadWAV(), which take
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   643
	a FILE pointer instead of a file name.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   644
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   645
	Added CD-ROM audio control API:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   646
	    SDL_CDNumDrives()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   647
	    SDL_CDName()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   648
	    SDL_CDOpen()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   649
	    SDL_CDStatus()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   650
	    SDL_CDPlayTracks()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   651
	    SDL_CDPlay()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   652
	    SDL_CDPause()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   653
	    SDL_CDResume()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   654
	    SDL_CDStop()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   655
	    SDL_CDEject()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   656
	    SDL_CDClose()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   657
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   658
0.9.4:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   659
	No changes, bugfixes only.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   660
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   661
0.9.3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   662
	Mouse motion event now includes relative motion information:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   663
	    Sint16 event->motion.xrel, Sint16 event->motion.yrel
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   664
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   665
	X11 keyrepeat handling can be disabled by defining IGNORE_X_KEYREPEAT
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   666
	    (Add -DIGNORE_X_KEYREPEAT to CFLAGS line in obj/x11Makefile)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   667
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   668
0.9.2:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   669
	No changes, bugfixes only.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   670
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   671
0.9.1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   672
	Removed SDL_MapSurface() and SDL_UnmapSurface() -- surfaces are now
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   673
	automatically mapped on blit.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   674
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   675
0.8.0:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   676
	SDL stable release