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Try matching gamepad mappings with CRC first

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Fixes https://github.com/libsdl-org/SDL/issues/13874
This commit is contained in:
Sam Lantinga
2025-10-14 09:48:03 -07:00
parent 98944ecd0c
commit d819106c65
2 changed files with 112 additions and 18 deletions
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16
src/joystick/SDL_gamepad.c
View File

@@ -1372,7 +1372,8 @@ static GamepadMapping_t *SDL_PrivateGetGamepadMappingForGUID(SDL_GUID guid, bool
{
GamepadMapping_t *mapping;
mapping = SDL_PrivateMatchGamepadMappingForGUID(guid, true, adding_mapping);
// Try first with an exact match on version and CRC
mapping = SDL_PrivateMatchGamepadMappingForGUID(guid, true, true);
if (mapping) {
return mapping;
}
@@ -1382,10 +1383,19 @@ static GamepadMapping_t *SDL_PrivateGetGamepadMappingForGUID(SDL_GUID guid, bool
return NULL;
}
// Try harder to get the best match, or create a mapping
// Try without CRC match
mapping = SDL_PrivateMatchGamepadMappingForGUID(guid, true, false);
if (mapping) {
return mapping;
}
// Try without version match
if (SDL_JoystickGUIDUsesVersion(guid)) {
// Try again, ignoring the version
mapping = SDL_PrivateMatchGamepadMappingForGUID(guid, false, true);
if (mapping) {
return mapping;
}
mapping = SDL_PrivateMatchGamepadMappingForGUID(guid, false, false);
if (mapping) {
return mapping;

114
test/testautomation_joystick.c
View File

@@ -9,6 +9,24 @@
/* ================= Test Case Implementation ================== */
/* Fixture */
/* Create a 32-bit writable surface for blitting tests */
static void SDLCALL joystickSetUp(void **arg)
{
SDL_InitSubSystem(SDL_INIT_GAMEPAD);
SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
}
static void SDLCALL joystickTearDown(void *arg)
{
SDL_ResetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS);
SDL_QuitSubSystem(SDL_INIT_GAMEPAD);
}
/* Test case functions */
/**
@@ -16,23 +34,19 @@
*
* \sa SDL_AttachVirtualJoystick
*/
static int SDLCALL TestVirtualJoystick(void *arg)
static int SDLCALL joystick_testVirtual(void *arg)
{
SDL_VirtualJoystickDesc desc;
SDL_Joystick *joystick = NULL;
SDL_Gamepad *gamepad = NULL;
SDL_JoystickID device_id;
SDLTest_AssertCheck(SDL_InitSubSystem(SDL_INIT_GAMEPAD), "SDL_InitSubSystem(SDL_INIT_GAMEPAD)");
SDL_SetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS, "1");
SDL_INIT_INTERFACE(&desc);
desc.type = SDL_JOYSTICK_TYPE_GAMEPAD;
desc.naxes = SDL_GAMEPAD_AXIS_COUNT;
desc.nbuttons = SDL_GAMEPAD_BUTTON_COUNT;
desc.vendor_id = USB_VENDOR_NVIDIA;
desc.product_id = USB_PRODUCT_NVIDIA_SHIELD_CONTROLLER_V104;
desc.product_id = USB_PRODUCT_NVIDIA_SHIELD_CONTROLLER_V103;
desc.name = "Virtual NVIDIA SHIELD Controller";
device_id = SDL_AttachVirtualJoystick(&desc);
SDLTest_AssertCheck(device_id > 0, "SDL_AttachVirtualJoystick() -> %" SDL_PRIs32 " (expected > 0)", device_id);
@@ -111,7 +125,7 @@ static int SDLCALL TestVirtualJoystick(void *arg)
}
/* Set an explicit mapping with a different name */
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff0013db5669727475616c2043007601,Virtual Gamepad,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff008316550900001072000000007601,Virtual Gamepad,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Gamepad") == 0, "SDL_GetGamepadName() ->\"%s\" (expected \"%s\")", name, "Virtual Gamepad");
@@ -133,7 +147,7 @@ static int SDLCALL TestVirtualJoystick(void *arg)
SDLTest_AssertCheck(SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_SOUTH) == false, "SDL_GetGamepadButton(SDL_GAMEPAD_BUTTON_SOUTH) == false");
/* Set an explicit mapping with legacy GameCube style buttons */
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff0013db5669727475616c2043007601,Virtual Nintendo GameCube,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,hint:SDL_GAMECONTROLLER_USE_GAMECUBE_LABELS:=1,");
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff008316550900001072000000007601,Virtual Nintendo GameCube,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,hint:SDL_GAMECONTROLLER_USE_GAMECUBE_LABELS:=1,");
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Nintendo GameCube") == 0, "SDL_GetGamepadName() -> \"%s\" (expected \"%s\")", name, "Virtual Nintendo GameCube");
@@ -150,7 +164,7 @@ static int SDLCALL TestVirtualJoystick(void *arg)
SDLTest_AssertCheck(SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_WEST) == false, "SDL_GetGamepadButton(SDL_GAMEPAD_BUTTON_WEST) == false");
/* Set an explicit mapping with legacy Nintendo style buttons */
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff0013db5669727475616c2043007601,Virtual Nintendo Gamepad,a:b1,b:b0,x:b3,y:b2,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,hint:SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1,");
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff008316550900001072000000007601,Virtual Nintendo Gamepad,a:b1,b:b0,x:b3,y:b2,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,hint:SDL_GAMECONTROLLER_USE_BUTTON_LABELS:=1,");
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Nintendo Gamepad") == 0, "SDL_GetGamepadName() -> \"%s\" (expected \"%s\")", name, "Virtual Nintendo Gamepad");
@@ -167,7 +181,7 @@ static int SDLCALL TestVirtualJoystick(void *arg)
SDLTest_AssertCheck(SDL_GetGamepadButton(gamepad, SDL_GAMEPAD_BUTTON_SOUTH) == false, "SDL_GetGamepadButton(SDL_GAMEPAD_BUTTON_SOUTH) == false");
/* Set an explicit mapping with PS4 style buttons */
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff0013db5669727475616c2043007601,Virtual PS4 Gamepad,type:ps4,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
SDL_SetGamepadMapping(SDL_GetJoystickID(joystick), "ff008316550900001072000000007601,Virtual PS4 Gamepad,type:ps4,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(SDL_strcmp(name, "Virtual PS4 Gamepad") == 0, "SDL_GetGamepadName() -> \"%s\" (expected \"%s\")", name, "Virtual PS4 Gamepad");
@@ -192,9 +206,75 @@ static int SDLCALL TestVirtualJoystick(void *arg)
}
SDLTest_AssertCheck(!SDL_IsJoystickVirtual(device_id), "!SDL_IsJoystickVirtual()");
SDL_ResetHint(SDL_HINT_JOYSTICK_ALLOW_BACKGROUND_EVENTS);
return TEST_COMPLETED;
}
SDL_QuitSubSystem(SDL_INIT_GAMEPAD);
/**
* Check gamepad mappings
*/
static int SDLCALL joystick_testMappings(void *arg)
{
SDL_VirtualJoystickDesc desc;
SDL_Gamepad *gamepad = NULL;
SDL_JoystickID device_id;
/* Add a mapping for the virtual controller in advance */
SDL_AddGamepadMapping("ff000000550900001472000000007601,Virtual Gamepad,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
SDL_INIT_INTERFACE(&desc);
desc.type = SDL_JOYSTICK_TYPE_GAMEPAD;
desc.naxes = SDL_GAMEPAD_AXIS_COUNT;
desc.nbuttons = SDL_GAMEPAD_BUTTON_COUNT;
desc.vendor_id = USB_VENDOR_NVIDIA;
desc.product_id = USB_PRODUCT_NVIDIA_SHIELD_CONTROLLER_V104;
desc.name = "Virtual NVIDIA SHIELD Controller";
device_id = SDL_AttachVirtualJoystick(&desc);
SDLTest_AssertCheck(device_id > 0, "SDL_AttachVirtualJoystick() -> %" SDL_PRIs32 " (expected > 0)", device_id);
SDLTest_AssertCheck(SDL_IsJoystickVirtual(device_id), "SDL_IsJoystickVirtual()");
gamepad = SDL_OpenGamepad(device_id);
SDLTest_AssertCheck(gamepad != NULL, "SDL_OpenGamepad() succeeded");
if (gamepad) {
/* Verify that the gamepad picked up the predefined mapping */
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Gamepad") == 0, "SDL_GetGamepadName() ->\"%s\" (expected \"%s\")", name, "Virtual Gamepad");
}
/* Verify that the gamepad picks up a new mapping with no CRC */
SDL_AddGamepadMapping("ff000000550900001472000000007601,Virtual Gamepad V2,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Gamepad V2") == 0, "SDL_GetGamepadName() ->\"%s\" (expected \"%s\")", name, "Virtual Gamepad V2");
}
/* Verify that the gamepad picks up a new mapping with valid CRC */
SDL_AddGamepadMapping("ff008316550900001472000000007601,Virtual Gamepad V3,a:b0,b:b1,x:b2,y:b3,back:b4,guide:b5,start:b6,leftstick:b7,rightstick:b8,leftshoulder:b9,rightshoulder:b10,dpup:b11,dpdown:b12,dpleft:b13,dpright:b14,misc1:b15,paddle1:b16,paddle2:b17,paddle3:b18,paddle4:b19,leftx:a0,lefty:a1,rightx:a2,righty:a3,lefttrigger:a4,righttrigger:a5,");
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Gamepad V3") == 0, "SDL_GetGamepadName() ->\"%s\" (expected \"%s\")", name, "Virtual Gamepad V3");
}
SDL_CloseGamepad(gamepad);
}
SDLTest_AssertCheck(SDL_DetachVirtualJoystick(device_id), "SDL_DetachVirtualJoystick()");
/* Try matching mappings with a new CRC */
desc.name = "Virtual NVIDIA SHIELD Controller V2";
device_id = SDL_AttachVirtualJoystick(&desc);
SDLTest_AssertCheck(device_id > 0, "SDL_AttachVirtualJoystick() -> %" SDL_PRIs32 " (expected > 0)", device_id);
SDLTest_AssertCheck(SDL_IsJoystickVirtual(device_id), "SDL_IsJoystickVirtual()");
gamepad = SDL_OpenGamepad(device_id);
SDLTest_AssertCheck(gamepad != NULL, "SDL_OpenGamepad() succeeded");
if (gamepad) {
{
const char *name = SDL_GetGamepadName(gamepad);
SDLTest_AssertCheck(name && SDL_strcmp(name, "Virtual Gamepad V2") == 0, "SDL_GetGamepadName() ->\"%s\" (expected \"%s\")", name, "Virtual Gamepad V2");
}
SDL_CloseGamepad(gamepad);
}
SDLTest_AssertCheck(SDL_DetachVirtualJoystick(device_id), "SDL_DetachVirtualJoystick()");
return TEST_COMPLETED;
}
@@ -203,19 +283,23 @@ static int SDLCALL TestVirtualJoystick(void *arg)
/* Joystick routine test cases */
static const SDLTest_TestCaseReference joystickTest1 = {
TestVirtualJoystick, "TestVirtualJoystick", "Test virtual joystick functionality", TEST_ENABLED
joystick_testVirtual, "joystick_testVirtual", "Test virtual joystick functionality", TEST_ENABLED
};
static const SDLTest_TestCaseReference joystickTest2 = {
joystick_testMappings, "joystick_testMappings", "Test gamepad mapping functionality", TEST_ENABLED
};
/* Sequence of Joystick routine test cases */
static const SDLTest_TestCaseReference *joystickTests[] = {
&joystickTest1,
&joystickTest2,
NULL
};
/* Joystick routine test suite (global) */
SDLTest_TestSuiteReference joystickTestSuite = {
"Joystick",
NULL,
joystickSetUp,
joystickTests,
NULL
joystickTearDown
};