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Port joystick and scrap to SDL3 #3208

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Port joystick and scrap to SDL3 #3208

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0830fa7
Port joystick.c to SDL3
ankith26 Nov 2, 2024
e6149e8
Port scap.c to SDL3
ankith26 Nov 2, 2024
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62 changes: 57 additions & 5 deletions src_c/joystick.c
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Original file line number Diff line number Diff line change
Expand Up @@ -112,7 +112,17 @@ static PyObject *
get_count(PyObject *self, PyObject *_null)
{
JOYSTICK_INIT_CHECK();
#if SDL_VERSION_ATLEAST(3, 0, 0)
int ret;
SDL_JoystickID *joysticks = SDL_GetJoysticks(&ret);
if (!joysticks) {
return RAISE(pgExc_SDLError, SDL_GetError());
}
SDL_free(joysticks);
return PyLong_FromLong(ret);
#else
return PyLong_FromLong(SDL_NumJoysticks());
#endif
}

static PyObject *
Expand Down Expand Up @@ -200,18 +210,53 @@ joy_get_guid(PyObject *self, PyObject *_null)
guid = SDL_JoystickGetGUID(joy);
}
else {
#if SDL_VERSION_ATLEAST(3, 0, 0)
guid = SDL_GetJoystickGUIDForID(pgJoystick_AsID(self));
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Something I didn't think about while making the PR: SDL_GetJoystickGUIDForID uses the instance ID and not the device ID returned by pgJoystick_AsID. This block needs more attention and thought

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In general the joystick port will need some more thought. They removed device indices completely, meaning we need to rework the initialization of joystick objects in general. There is no easy way to emulate this either (and we shouldn't anyway!).

With that said, you can use SDL_GetJoystickID to get the instance_id of an already open joystick.

#else
guid = SDL_JoystickGetDeviceGUID(pgJoystick_AsID(self));
#endif
}

#if SDL_VERSION_ATLEAST(3, 0, 0)
SDL_GUIDToString(guid, strguid, 33);
#else
SDL_JoystickGetGUIDString(guid, strguid, 33);
#endif

return PyUnicode_FromString(strguid);
}

const char *
_pg_powerlevel_string(SDL_JoystickPowerLevel level)
_pg_powerlevel_string(SDL_Joystick *joy)
{
switch (level) {
#if SDL_VERSION_ATLEAST(3, 0, 0)
int percent = -1;
SDL_PowerState state = SDL_GetJoystickPowerInfo(joy, &percent);
if (state == SDL_POWERSTATE_ON_BATTERY) {
/* These percentages are based on SDL_JoystickCurrentPowerLevel defined
* in sdl2-compat */
if (percent > 70) {
return "full";
}
else if (percent > 20) {
return "medium";
}
else if (percent > 5) {
return "low";
}
else {
return "empty";
}
}
else if (state == SDL_POWERSTATE_UNKNOWN ||
state == SDL_POWERSTATE_ERROR) {
return "unknown";
}
else {
return "wired";
}
#else
switch (SDL_JoystickCurrentPowerLevel(joy)) {
case SDL_JOYSTICK_POWER_EMPTY:
return "empty";
case SDL_JOYSTICK_POWER_LOW:
Expand All @@ -227,12 +272,12 @@ _pg_powerlevel_string(SDL_JoystickPowerLevel level)
default:
return "unknown";
}
#endif
}

static PyObject *
joy_get_power_level(PyObject *self, PyObject *_null)
{
SDL_JoystickPowerLevel level;
const char *leveltext;
SDL_Joystick *joy = pgJoystick_AsSDL(self);

Expand All @@ -241,8 +286,7 @@ joy_get_power_level(PyObject *self, PyObject *_null)
return RAISE(pgExc_SDLError, "Joystick not initialized");
}

level = SDL_JoystickCurrentPowerLevel(joy);
leveltext = _pg_powerlevel_string(level);
leveltext = _pg_powerlevel_string(joy);

return PyUnicode_FromString(leveltext);
}
Expand Down Expand Up @@ -287,7 +331,11 @@ joy_rumble(pgJoystickObject *self, PyObject *args, PyObject *kwargs)
low = (Uint32)(lowf * 0xFFFF);
high = (Uint32)(highf * 0xFFFF);

#if SDL_VERSION_ATLEAST(3, 0, 0)
if (!SDL_JoystickRumble(joy, low, high, duration)) {
#else
if (SDL_JoystickRumble(joy, low, high, duration) == -1) {
#endif
Py_RETURN_FALSE;
}
Py_RETURN_TRUE;
Expand Down Expand Up @@ -545,9 +593,13 @@ pgJoystick_New(int id)
JOYSTICK_INIT_CHECK();

/* Open the SDL device */
#if !SDL_VERSION_ATLEAST(3, 0, 0)
/* This check should be redundant because SDL_JoystickOpen already checks
* and errors if id is out of bounds on SDL3 */
if (id >= SDL_NumJoysticks()) {
return RAISE(pgExc_SDLError, "Invalid joystick device number");
}
#endif
joy = SDL_JoystickOpen(id);
if (!joy) {
return RAISE(pgExc_SDLError, SDL_GetError());
Expand Down
7 changes: 0 additions & 7 deletions src_c/meson.build
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Original file line number Diff line number Diff line change
Expand Up @@ -170,8 +170,6 @@ time = py.extension_module(
)
endif

# TODO: support SDL3
if sdl_api != 3
joystick = py.extension_module(
'joystick',
'joystick.c',
Expand All @@ -180,7 +178,6 @@ joystick = py.extension_module(
install: true,
subdir: pg,
)
endif


# TODO: support SDL3
Expand Down Expand Up @@ -397,9 +394,6 @@ _camera = py.extension_module(
endif

# pygame.scrap

# TODO: support SDL3
if sdl_api != 3
pg_scrap_link = [] # TODO: should this link logic be improved/made meson-ey?
if plat == 'win'
pg_scrap_link += ['-luser32', '-lgdi32']
Expand All @@ -414,7 +408,6 @@ scrap = py.extension_module(
install: true,
subdir: pg,
)
endif

# optional modules

Expand Down
3 changes: 1 addition & 2 deletions src_c/scrap.c
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Original file line number Diff line number Diff line change
Expand Up @@ -27,9 +27,8 @@
#include <SDL3/SDL.h>
#else
#include <SDL.h>
#endif

#include "SDL_syswm.h"
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#endif

#include "pygame.h"

Expand Down
10 changes: 10 additions & 0 deletions src_c/scrap_win.c
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,15 @@ _create_dib_buffer(char *data, size_t *count)
int
pygame_scrap_init(void)
{
#if SDL_VERSION_ATLEAST(3, 0, 0)
int retval = 0;
window_handle = (HWND)SDL_GetPointerProperty(
SDL_GetWindowProperties(pg_GetDefaultWindow()),
SDL_PROP_WINDOW_WIN32_HWND_POINTER, NULL);
if (window_handle) {
retval = 1;
}
#else
SDL_SysWMinfo info;
int retval = 0;

Expand All @@ -170,6 +179,7 @@ pygame_scrap_init(void)
window_handle = info.info.win.window;
retval = 1;
}
#endif

if (retval)
_scrapinitialized = 1;
Expand Down
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