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Initialize interface structures so they can be extended in the future

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We guarantee that we will only add to the end of these interfaces, and any new fields will be optional.
This commit is contained in:
Sam Lantinga
2024-09-05 16:28:48 -07:00
parent 434193d153
commit 702ed83f72
13 changed files with 130 additions and 22 deletions
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6
docs/README-migration.md
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@@ -920,7 +920,7 @@ The functions SDL_GetJoysticks(), SDL_GetJoystickNameForID(), SDL_GetJoystickPat
SDL_AttachVirtualJoystick() now returns the joystick instance ID instead of a device index, and returns 0 if there was an error.
SDL_VirtualJoystickDesc no longer takes a struct version; if we need to extend this in the future, we'll make a second struct and a second SDL_AttachVirtualJoystickEx-style function that uses it. Just zero the struct and don't set a version.
SDL_VirtualJoystickDesc version should not be set to SDL_VIRTUAL_JOYSTICK_DESC_VERSION, instead the structure should be initialized using SDL_INIT_INTERFACE().
The following functions have been renamed:
* SDL_JoystickAttachVirtualEx() => SDL_AttachVirtualJoystick()
@@ -983,7 +983,7 @@ The following functions have been removed:
* SDL_JoystickNameForIndex() - replaced with SDL_GetJoystickNameForID()
* SDL_JoystickPathForIndex() - replaced with SDL_GetJoystickPathForID()
* SDL_NumJoysticks() - replaced with SDL_GetJoysticks()
* SDL_VIRTUAL_JOYSTICK_DESC_VERSION - no longer needed, version info has been removed from SDL_VirtualJoystickDesc.
* SDL_VIRTUAL_JOYSTICK_DESC_VERSION - no longer needed
The following symbols have been removed:
* SDL_JOYBALLMOTION
@@ -1568,7 +1568,7 @@ SDL_IOStream *SDL_RWFromFP(FILE *fp, SDL_bool autoclose)
return NULL;
}
SDL_zero(iface);
SDL_INIT_INTERFACE(&iface);
/* There's no stdio_size because SDL_GetIOSize emulates it the same way we'd do it for stdio anyhow. */
iface.seek = stdio_seek;
iface.read = stdio_read;