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Make joystick platform code init on demand

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This makes joystick support initialize the first time a joystick
function is called, including those gamepad functions that are layered
on top of joystick functions.

Related to #1284.
Related to #1646.
This commit is contained in:
Camilla Löwy
2020-07-12 18:31:29 +02:00
parent f760b124ca
commit 782e6b6cef
19 changed files with 101 additions and 49 deletions
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docs/input.dox
+4 -4
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@@ -550,10 +550,10 @@ int present = glfwJoystickPresent(GLFW_JOYSTICK_1);
Each joystick has zero or more axes, zero or more buttons, zero or more hats,
a human-readable name, a user pointer and an SDL compatible GUID.
When GLFW is initialized, detected joysticks are added to the beginning of
the array. Once a joystick is detected, it keeps its assigned ID until it is
disconnected or the library is terminated, so as joysticks are connected and
disconnected, there may appear gaps in the IDs.
Detected joysticks are added to the beginning of the array. Once a joystick is
detected, it keeps its assigned ID until it is disconnected or the library is
terminated, so as joysticks are connected and disconnected, there may appear
gaps in the IDs.
Joystick axis, button and hat state is updated when polled and does not require
a window to be created or events to be processed. However, if you want joystick