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Removed temporary memory from the API

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It was intended to make the API easier to use, but various automatic garbage collection all had flaws, and making the application periodically clean up temporary memory added cognitive load to using the API, and in many cases was it was difficult to restructure threaded code to handle this.

So, we're largely going back to the original system, where the API returns allocated results and you free them.

In addition, to solve the problems we originally wanted temporary memory for:
* Short strings with a finite count, like device names, get stored in a per-thread string pool.
* Events continue to use temporary memory internally, which is cleaned up on the next event processing cycle.
This commit is contained in:
Sam Lantinga
2024-07-26 18:57:18 -07:00
parent 21411c6418
commit 4f55271571
100 changed files with 737 additions and 853 deletions
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10
include/SDL3/SDL_keyboard.h
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@@ -76,14 +76,14 @@ extern SDL_DECLSPEC SDL_bool SDLCALL SDL_HasKeyboard(void);
* \param count a pointer filled in with the number of keyboards returned, may
* be NULL.
* \returns a 0 terminated array of keyboards instance IDs or NULL on failure;
* call SDL_GetError() for more information.
* call SDL_GetError() for more information. This should be freed with SDL_free() when it is no longer needed.
*
* \since This function is available since SDL 3.0.0.
*
* \sa SDL_GetKeyboardNameForID
* \sa SDL_HasKeyboard
*/
extern SDL_DECLSPEC_TEMP const SDL_KeyboardID * SDLCALL SDL_GetKeyboards(int *count);
extern SDL_DECLSPEC_FREE SDL_KeyboardID * SDLCALL SDL_GetKeyboards(int *count);
/**
* Get the name of a keyboard.
@@ -98,7 +98,7 @@ extern SDL_DECLSPEC_TEMP const SDL_KeyboardID * SDLCALL SDL_GetKeyboards(int *co
*
* \sa SDL_GetKeyboards
*/
extern SDL_DECLSPEC_TEMP const char * SDLCALL SDL_GetKeyboardNameForID(SDL_KeyboardID instance_id);
extern SDL_DECLSPEC const char * SDLCALL SDL_GetKeyboardNameForID(SDL_KeyboardID instance_id);
/**
* Query the window which currently has keyboard focus.
@@ -297,7 +297,7 @@ extern SDL_DECLSPEC int SDLCALL SDL_SetScancodeName(SDL_Scancode scancode, const
* \sa SDL_GetScancodeFromName
* \sa SDL_SetScancodeName
*/
extern SDL_DECLSPEC_TEMP const char * SDLCALL SDL_GetScancodeName(SDL_Scancode scancode);
extern SDL_DECLSPEC const char * SDLCALL SDL_GetScancodeName(SDL_Scancode scancode);
/**
* Get a scancode from a human-readable name.
@@ -331,7 +331,7 @@ extern SDL_DECLSPEC SDL_Scancode SDLCALL SDL_GetScancodeFromName(const char *nam
* \sa SDL_GetKeyFromScancode
* \sa SDL_GetScancodeFromKey
*/
extern SDL_DECLSPEC_TEMP const char * SDLCALL SDL_GetKeyName(SDL_Keycode key);
extern SDL_DECLSPEC const char * SDLCALL SDL_GetKeyName(SDL_Keycode key);
/**
* Get a key code from a human-readable name.