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Add support for SDL_GameControllerDB

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This adds support for importing and applying mappings from the
SDL_GameControllerDB database.

Related to #900.
This commit is contained in:
Camilla Löwy
2017-06-18 15:13:25 +02:00
parent 07bf2b166b
commit 953106e74d
19 changed files with 1186 additions and 80 deletions
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src/linux_joystick.c
+28 -3
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@@ -124,10 +124,12 @@ static GLFWbool openJoystickDevice(const char* path)
{
int jid, code;
char name[256] = "";
char guid[33] = "";
char evBits[(EV_CNT + 7) / 8] = {0};
char keyBits[(KEY_CNT + 7) / 8] = {0};
char absBits[(ABS_CNT + 7) / 8] = {0};
int axisCount = 0, buttonCount = 0, hatCount = 0;
struct input_id id;
_GLFWjoystickLinux linjs = {0};
_GLFWjoystick* js = NULL;
@@ -145,10 +147,11 @@ static GLFWbool openJoystickDevice(const char* path)
if (ioctl(linjs.fd, EVIOCGBIT(0, sizeof(evBits)), evBits) < 0 ||
ioctl(linjs.fd, EVIOCGBIT(EV_KEY, sizeof(keyBits)), keyBits) < 0 ||
ioctl(linjs.fd, EVIOCGBIT(EV_ABS, sizeof(absBits)), absBits) < 0)
ioctl(linjs.fd, EVIOCGBIT(EV_ABS, sizeof(absBits)), absBits) < 0 ||
ioctl(linjs.fd, EVIOCGID, &id) < 0)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"Linux: Failed to query input device elements: %s",
"Linux: Failed to query input device: %s",
strerror(errno));
close(linjs.fd);
return GLFW_FALSE;
@@ -164,6 +167,24 @@ static GLFWbool openJoystickDevice(const char* path)
if (ioctl(linjs.fd, EVIOCGNAME(sizeof(name)), name) < 0)
strncpy(name, "Unknown", sizeof(name));
// Generate a joystick GUID that matches the SDL 2.0.5+ one
if (id.vendor && id.product && id.version)
{
sprintf(guid, "%02x%02x0000%02x%02x0000%02x%02x0000%02x%02x0000",
id.bustype & 0xff, id.bustype >> 8,
id.vendor & 0xff, id.vendor >> 8,
id.product & 0xff, id.product >> 8,
id.version & 0xff, id.version >> 8);
}
else
{
sprintf(guid, "%02x%02x0000%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x00",
id.bustype & 0xff, id.bustype >> 8,
name[0], name[1], name[2], name[3],
name[4], name[5], name[6], name[7],
name[8], name[9], name[10]);
}
for (code = BTN_MISC; code < KEY_CNT; code++)
{
if (!isBitSet(code, keyBits))
@@ -196,7 +217,7 @@ static GLFWbool openJoystickDevice(const char* path)
}
}
js = _glfwAllocJoystick(name, axisCount, buttonCount, hatCount);
js = _glfwAllocJoystick(name, guid, axisCount, buttonCount, hatCount);
if (!js)
{
close(linjs.fd);
@@ -419,3 +440,7 @@ int _glfwPlatformPollJoystick(int jid, int mode)
return js->present;
}
void _glfwPlatformUpdateGamepadGUID(char* guid)
{
}