ref: 8d296f03850a2b981a90a6a62bb3663bd9effd4f
dir: /external/glfw/src/input.c/
//======================================================================== // GLFW 3.3 - www.glfw.org //------------------------------------------------------------------------ // Copyright (c) 2002-2006 Marcus Geelnard // Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org> // // This software is provided 'as-is', without any express or implied // warranty. In no event will the authors be held liable for any damages // arising from the use of this software. // // Permission is granted to anyone to use this software for any purpose, // including commercial applications, and to alter it and redistribute it // freely, subject to the following restrictions: // // 1. The origin of this software must not be misrepresented; you must not // claim that you wrote the original software. If you use this software // in a product, an acknowledgment in the product documentation would // be appreciated but is not required. // // 2. Altered source versions must be plainly marked as such, and must not // be misrepresented as being the original software. // // 3. This notice may not be removed or altered from any source // distribution. // //======================================================================== // Please use C89 style variable declarations in this file because VS 2010 //======================================================================== #include "internal.h" #include <assert.h> #include <float.h> #include <math.h> #include <stdlib.h> #include <string.h> // Internal key state used for sticky keys #define _GLFW_STICK 3 // Internal constants for gamepad mapping source types #define _GLFW_JOYSTICK_AXIS 1 #define _GLFW_JOYSTICK_BUTTON 2 #define _GLFW_JOYSTICK_HATBIT 3 // Finds a mapping based on joystick GUID // static _GLFWmapping* findMapping(const char* guid) { int i; for (i = 0; i < _glfw.mappingCount; i++) { if (strcmp(_glfw.mappings[i].guid, guid) == 0) return _glfw.mappings + i; } return NULL; } // Checks whether a gamepad mapping element is present in the hardware // static GLFWbool isValidElementForJoystick(const _GLFWmapelement* e, const _GLFWjoystick* js) { if (e->type == _GLFW_JOYSTICK_HATBIT && (e->index >> 4) >= js->hatCount) return GLFW_FALSE; else if (e->type == _GLFW_JOYSTICK_BUTTON && e->index >= js->buttonCount) return GLFW_FALSE; else if (e->type == _GLFW_JOYSTICK_AXIS && e->index >= js->axisCount) return GLFW_FALSE; return GLFW_TRUE; } // Finds a mapping based on joystick GUID and verifies element indices // static _GLFWmapping* findValidMapping(const _GLFWjoystick* js) { _GLFWmapping* mapping = findMapping(js->guid); if (mapping) { int i; for (i = 0; i <= GLFW_GAMEPAD_BUTTON_LAST; i++) { if (!isValidElementForJoystick(mapping->buttons + i, js)) { _glfwInputError(GLFW_INVALID_VALUE, "Invalid button in gamepad mapping %s (%s)", mapping->guid, mapping->name); return NULL; } } for (i = 0; i <= GLFW_GAMEPAD_AXIS_LAST; i++) { if (!isValidElementForJoystick(mapping->axes + i, js)) { _glfwInputError(GLFW_INVALID_VALUE, "Invalid axis in gamepad mapping %s (%s)", mapping->guid, mapping->name); return NULL; } } } return mapping; } // Parses an SDL_GameControllerDB line and adds it to the mapping list // static GLFWbool parseMapping(_GLFWmapping* mapping, const char* string) { const char* c = string; size_t i, length; struct { const char* name; _GLFWmapelement* element; } fields[] = { { "platform", NULL }, { "a", mapping->buttons + GLFW_GAMEPAD_BUTTON_A }, { "b", mapping->buttons + GLFW_GAMEPAD_BUTTON_B }, { "x", mapping->buttons + GLFW_GAMEPAD_BUTTON_X }, { "y", mapping->buttons + GLFW_GAMEPAD_BUTTON_Y }, { "back", mapping->buttons + GLFW_GAMEPAD_BUTTON_BACK }, { "start", mapping->buttons + GLFW_GAMEPAD_BUTTON_START }, { "guide", mapping->buttons + GLFW_GAMEPAD_BUTTON_GUIDE }, { "leftshoulder", mapping->buttons + GLFW_GAMEPAD_BUTTON_LEFT_BUMPER }, { "rightshoulder", mapping->buttons + GLFW_GAMEPAD_BUTTON_RIGHT_BUMPER }, { "leftstick", mapping->buttons + GLFW_GAMEPAD_BUTTON_LEFT_THUMB }, { "rightstick", mapping->buttons + GLFW_GAMEPAD_BUTTON_RIGHT_THUMB }, { "dpup", mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_UP }, { "dpright", mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_RIGHT }, { "dpdown", mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_DOWN }, { "dpleft", mapping->buttons + GLFW_GAMEPAD_BUTTON_DPAD_LEFT }, { "lefttrigger", mapping->axes + GLFW_GAMEPAD_AXIS_LEFT_TRIGGER }, { "righttrigger", mapping->axes + GLFW_GAMEPAD_AXIS_RIGHT_TRIGGER }, { "leftx", mapping->axes + GLFW_GAMEPAD_AXIS_LEFT_X }, { "lefty", mapping->axes + GLFW_GAMEPAD_AXIS_LEFT_Y }, { "rightx", mapping->axes + GLFW_GAMEPAD_AXIS_RIGHT_X }, { "righty", mapping->axes + GLFW_GAMEPAD_AXIS_RIGHT_Y } }; length = strcspn(c, ","); if (length != 32 || c[length] != ',') { _glfwInputError(GLFW_INVALID_VALUE, NULL); return GLFW_FALSE; } memcpy(mapping->guid, c, length); c += length + 1; length = strcspn(c, ","); if (length >= sizeof(mapping->name) || c[length] != ',') { _glfwInputError(GLFW_INVALID_VALUE, NULL); return GLFW_FALSE; } memcpy(mapping->name, c, length); c += length + 1; while (*c) { // TODO: Implement output modifiers if (*c == '+' || *c == '-') return GLFW_FALSE; for (i = 0; i < sizeof(fields) / sizeof(fields[0]); i++) { length = strlen(fields[i].name); if (strncmp(c, fields[i].name, length) != 0 || c[length] != ':') continue; c += length + 1; if (fields[i].element) { _GLFWmapelement* e = fields[i].element; int8_t minimum = -1; int8_t maximum = 1; if (*c == '+') { minimum = 0; c += 1; } else if (*c == '-') { maximum = 0; c += 1; } if (*c == 'a') e->type = _GLFW_JOYSTICK_AXIS; else if (*c == 'b') e->type = _GLFW_JOYSTICK_BUTTON; else if (*c == 'h') e->type = _GLFW_JOYSTICK_HATBIT; else break; if (e->type == _GLFW_JOYSTICK_HATBIT) { const unsigned long hat = strtoul(c + 1, (char**) &c, 10); const unsigned long bit = strtoul(c + 1, (char**) &c, 10); e->index = (uint8_t) ((hat << 4) | bit); } else e->index = (uint8_t) strtoul(c + 1, (char**) &c, 10); if (e->type == _GLFW_JOYSTICK_AXIS) { e->axisScale = 2 / (maximum - minimum); e->axisOffset = -(maximum + minimum); if (*c == '~') { e->axisScale = -e->axisScale; e->axisOffset = -e->axisOffset; } } } else { length = strlen(_GLFW_PLATFORM_MAPPING_NAME); if (strncmp(c, _GLFW_PLATFORM_MAPPING_NAME, length) != 0) return GLFW_FALSE; } break; } c += strcspn(c, ","); c += strspn(c, ","); } for (i = 0; i < 32; i++) { if (mapping->guid[i] >= 'A' && mapping->guid[i] <= 'F') mapping->guid[i] += 'a' - 'A'; } _glfwPlatformUpdateGamepadGUID(mapping->guid); return GLFW_TRUE; } ////////////////////////////////////////////////////////////////////////// ////// GLFW event API ////// ////////////////////////////////////////////////////////////////////////// // Notifies shared code of a physical key event // void _glfwInputKey(_GLFWwindow* window, int key, int scancode, int action, int mods) { if (key >= 0 && key <= GLFW_KEY_LAST) { GLFWbool repeated = GLFW_FALSE; if (action == GLFW_RELEASE && window->keys[key] == GLFW_RELEASE) return; if (action == GLFW_PRESS && window->keys[key] == GLFW_PRESS) repeated = GLFW_TRUE; if (action == GLFW_RELEASE && window->stickyKeys) window->keys[key] = _GLFW_STICK; else window->keys[key] = (char) action; if (repeated) action = GLFW_REPEAT; } if (!window->lockKeyMods) mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK); if (window->callbacks.key) window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods); } // Notifies shared code of a Unicode codepoint input event // The 'plain' parameter determines whether to emit a regular character event // void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, GLFWbool plain) { if (codepoint < 32 || (codepoint > 126 && codepoint < 160)) return; if (!window->lockKeyMods) mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK); if (window->callbacks.charmods) window->callbacks.charmods((GLFWwindow*) window, codepoint, mods); if (plain) { if (window->callbacks.character) window->callbacks.character((GLFWwindow*) window, codepoint); } } // Notifies shared code of a scroll event // void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset) { if (window->callbacks.scroll) window->callbacks.scroll((GLFWwindow*) window, xoffset, yoffset); } // Notifies shared code of a mouse button click event // void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods) { if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST) return; if (!window->lockKeyMods) mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK); if (action == GLFW_RELEASE && window->stickyMouseButtons) window->mouseButtons[button] = _GLFW_STICK; else window->mouseButtons[button] = (char) action; if (window->callbacks.mouseButton) window->callbacks.mouseButton((GLFWwindow*) window, button, action, mods); } // Notifies shared code of a cursor motion event // The position is specified in content area relative screen coordinates // void _glfwInputCursorPos(_GLFWwindow* window, double xpos, double ypos) { if (window->virtualCursorPosX == xpos && window->virtualCursorPosY == ypos) return; window->virtualCursorPosX = xpos; window->virtualCursorPosY = ypos; if (window->callbacks.cursorPos) window->callbacks.cursorPos((GLFWwindow*) window, xpos, ypos); } // Notifies shared code of a cursor enter/leave event // void _glfwInputCursorEnter(_GLFWwindow* window, GLFWbool entered) { if (window->callbacks.cursorEnter) window->callbacks.cursorEnter((GLFWwindow*) window, entered); } // Notifies shared code of files or directories dropped on a window // void _glfwInputDrop(_GLFWwindow* window, int count, const char** paths) { if (window->callbacks.drop) window->callbacks.drop((GLFWwindow*) window, count, paths); } // Notifies shared code of a joystick connection or disconnection // void _glfwInputJoystick(_GLFWjoystick* js, int event) { const int jid = (int) (js - _glfw.joysticks); if (_glfw.callbacks.joystick) _glfw.callbacks.joystick(jid, event); } // Notifies shared code of the new value of a joystick axis // void _glfwInputJoystickAxis(_GLFWjoystick* js, int axis, float value) { js->axes[axis] = value; } // Notifies shared code of the new value of a joystick button // void _glfwInputJoystickButton(_GLFWjoystick* js, int button, char value) { js->buttons[button] = value; } // Notifies shared code of the new value of a joystick hat // void _glfwInputJoystickHat(_GLFWjoystick* js, int hat, char value) { const int base = js->buttonCount + hat * 4; js->buttons[base + 0] = (value & 0x01) ? GLFW_PRESS : GLFW_RELEASE; js->buttons[base + 1] = (value & 0x02) ? GLFW_PRESS : GLFW_RELEASE; js->buttons[base + 2] = (value & 0x04) ? GLFW_PRESS : GLFW_RELEASE; js->buttons[base + 3] = (value & 0x08) ? GLFW_PRESS : GLFW_RELEASE; js->hats[hat] = value; } ////////////////////////////////////////////////////////////////////////// ////// GLFW internal API ////// ////////////////////////////////////////////////////////////////////////// // Returns an available joystick object with arrays and name allocated // _GLFWjoystick* _glfwAllocJoystick(const char* name, const char* guid, int axisCount, int buttonCount, int hatCount) { int jid; _GLFWjoystick* js; for (jid = 0; jid <= GLFW_JOYSTICK_LAST; jid++) { if (!_glfw.joysticks[jid].present) break; } if (jid > GLFW_JOYSTICK_LAST) return NULL; js = _glfw.joysticks + jid; js->present = GLFW_TRUE; js->name = _glfw_strdup(name); js->axes = calloc(axisCount, sizeof(float)); js->buttons = calloc(buttonCount + (size_t) hatCount * 4, 1); js->hats = calloc(hatCount, 1); js->axisCount = axisCount; js->buttonCount = buttonCount; js->hatCount = hatCount; strncpy(js->guid, guid, sizeof(js->guid) - 1); js->mapping = findValidMapping(js); return js; } // Frees arrays and name and flags the joystick object as unused // void _glfwFreeJoystick(_GLFWjoystick* js) { free(js->name); free(js->axes); free(js->buttons); free(js->hats); memset(js, 0, sizeof(_GLFWjoystick)); } // Center the cursor in the content area of the specified window // void _glfwCenterCursorInContentArea(_GLFWwindow* window) { int width, height; _glfwPlatformGetWindowSize(window, &width, &height); _glfwPlatformSetCursorPos(window, width / 2.0, height / 2.0); } ////////////////////////////////////////////////////////////////////////// ////// GLFW public API ////// ////////////////////////////////////////////////////////////////////////// GLFWAPI int glfwGetInputMode(GLFWwindow* handle, int mode) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(0); switch (mode) { case GLFW_CURSOR: return window->cursorMode; case GLFW_STICKY_KEYS: return window->stickyKeys; case GLFW_STICKY_MOUSE_BUTTONS: return window->stickyMouseButtons; case GLFW_LOCK_KEY_MODS: return window->lockKeyMods; case GLFW_RAW_MOUSE_MOTION: return window->rawMouseMotion; } _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode); return 0; } GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT(); if (mode == GLFW_CURSOR) { if (value != GLFW_CURSOR_NORMAL && value != GLFW_CURSOR_HIDDEN && value != GLFW_CURSOR_DISABLED) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid cursor mode 0x%08X", value); return; } if (window->cursorMode == value) return; window->cursorMode = value; _glfwPlatformGetCursorPos(window, &window->virtualCursorPosX, &window->virtualCursorPosY); _glfwPlatformSetCursorMode(window, value); } else if (mode == GLFW_STICKY_KEYS) { value = value ? GLFW_TRUE : GLFW_FALSE; if (window->stickyKeys == value) return; if (!value) { int i; // Release all sticky keys for (i = 0; i <= GLFW_KEY_LAST; i++) { if (window->keys[i] == _GLFW_STICK) window->keys[i] = GLFW_RELEASE; } } window->stickyKeys = value; } else if (mode == GLFW_STICKY_MOUSE_BUTTONS) { value = value ? GLFW_TRUE : GLFW_FALSE; if (window->stickyMouseButtons == value) return; if (!value) { int i; // Release all sticky mouse buttons for (i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i++) { if (window->mouseButtons[i] == _GLFW_STICK) window->mouseButtons[i] = GLFW_RELEASE; } } window->stickyMouseButtons = value; } else if (mode == GLFW_LOCK_KEY_MODS) { window->lockKeyMods = value ? GLFW_TRUE : GLFW_FALSE; } else if (mode == GLFW_RAW_MOUSE_MOTION) { if (!_glfwPlatformRawMouseMotionSupported()) { _glfwInputError(GLFW_PLATFORM_ERROR, "Raw mouse motion is not supported on this system"); return; } value = value ? GLFW_TRUE : GLFW_FALSE; if (window->rawMouseMotion == value) return; window->rawMouseMotion = value; _glfwPlatformSetRawMouseMotion(window, value); } else _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode); } GLFWAPI int glfwRawMouseMotionSupported(void) { _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE); return _glfwPlatformRawMouseMotionSupported(); } GLFWAPI const char* glfwGetKeyName(int key, int scancode) { _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (key != GLFW_KEY_UNKNOWN) { if (key != GLFW_KEY_KP_EQUAL && (key < GLFW_KEY_KP_0 || key > GLFW_KEY_KP_ADD) && (key < GLFW_KEY_APOSTROPHE || key > GLFW_KEY_WORLD_2)) { return NULL; } scancode = _glfwPlatformGetKeyScancode(key); } return _glfwPlatformGetScancodeName(scancode); } GLFWAPI int glfwGetKeyScancode(int key) { _GLFW_REQUIRE_INIT_OR_RETURN(-1); if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key); return GLFW_RELEASE; } return _glfwPlatformGetKeyScancode(key); } GLFWAPI int glfwGetKey(GLFWwindow* handle, int key) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE); if (key < GLFW_KEY_SPACE || key > GLFW_KEY_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid key %i", key); return GLFW_RELEASE; } if (window->keys[key] == _GLFW_STICK) { // Sticky mode: release key now window->keys[key] = GLFW_RELEASE; return GLFW_PRESS; } return (int) window->keys[key]; } GLFWAPI int glfwGetMouseButton(GLFWwindow* handle, int button) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_RELEASE); if (button < GLFW_MOUSE_BUTTON_1 || button > GLFW_MOUSE_BUTTON_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid mouse button %i", button); return GLFW_RELEASE; } if (window->mouseButtons[button] == _GLFW_STICK) { // Sticky mode: release mouse button now window->mouseButtons[button] = GLFW_RELEASE; return GLFW_PRESS; } return (int) window->mouseButtons[button]; } GLFWAPI void glfwGetCursorPos(GLFWwindow* handle, double* xpos, double* ypos) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); if (xpos) *xpos = 0; if (ypos) *ypos = 0; _GLFW_REQUIRE_INIT(); if (window->cursorMode == GLFW_CURSOR_DISABLED) { if (xpos) *xpos = window->virtualCursorPosX; if (ypos) *ypos = window->virtualCursorPosY; } else _glfwPlatformGetCursorPos(window, xpos, ypos); } GLFWAPI void glfwSetCursorPos(GLFWwindow* handle, double xpos, double ypos) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT(); if (xpos != xpos || xpos < -DBL_MAX || xpos > DBL_MAX || ypos != ypos || ypos < -DBL_MAX || ypos > DBL_MAX) { _glfwInputError(GLFW_INVALID_VALUE, "Invalid cursor position %f %f", xpos, ypos); return; } if (!_glfwPlatformWindowFocused(window)) return; if (window->cursorMode == GLFW_CURSOR_DISABLED) { // Only update the accumulated position if the cursor is disabled window->virtualCursorPosX = xpos; window->virtualCursorPosY = ypos; } else { // Update system cursor position _glfwPlatformSetCursorPos(window, xpos, ypos); } } GLFWAPI GLFWcursor* glfwCreateCursor(const GLFWimage* image, int xhot, int yhot) { _GLFWcursor* cursor; assert(image != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); cursor = calloc(1, sizeof(_GLFWcursor)); cursor->next = _glfw.cursorListHead; _glfw.cursorListHead = cursor; if (!_glfwPlatformCreateCursor(cursor, image, xhot, yhot)) { glfwDestroyCursor((GLFWcursor*) cursor); return NULL; } return (GLFWcursor*) cursor; } GLFWAPI GLFWcursor* glfwCreateStandardCursor(int shape) { _GLFWcursor* cursor; _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (shape != GLFW_ARROW_CURSOR && shape != GLFW_IBEAM_CURSOR && shape != GLFW_CROSSHAIR_CURSOR && shape != GLFW_HAND_CURSOR && shape != GLFW_HRESIZE_CURSOR && shape != GLFW_VRESIZE_CURSOR) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid standard cursor 0x%08X", shape); return NULL; } cursor = calloc(1, sizeof(_GLFWcursor)); cursor->next = _glfw.cursorListHead; _glfw.cursorListHead = cursor; if (!_glfwPlatformCreateStandardCursor(cursor, shape)) { glfwDestroyCursor((GLFWcursor*) cursor); return NULL; } return (GLFWcursor*) cursor; } GLFWAPI void glfwDestroyCursor(GLFWcursor* handle) { _GLFWcursor* cursor = (_GLFWcursor*) handle; _GLFW_REQUIRE_INIT(); if (cursor == NULL) return; // Make sure the cursor is not being used by any window { _GLFWwindow* window; for (window = _glfw.windowListHead; window; window = window->next) { if (window->cursor == cursor) glfwSetCursor((GLFWwindow*) window, NULL); } } _glfwPlatformDestroyCursor(cursor); // Unlink cursor from global linked list { _GLFWcursor** prev = &_glfw.cursorListHead; while (*prev != cursor) prev = &((*prev)->next); *prev = cursor->next; } free(cursor); } GLFWAPI void glfwSetCursor(GLFWwindow* windowHandle, GLFWcursor* cursorHandle) { _GLFWwindow* window = (_GLFWwindow*) windowHandle; _GLFWcursor* cursor = (_GLFWcursor*) cursorHandle; assert(window != NULL); _GLFW_REQUIRE_INIT(); window->cursor = cursor; _glfwPlatformSetCursor(window, cursor); } GLFWAPI GLFWkeyfun glfwSetKeyCallback(GLFWwindow* handle, GLFWkeyfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.key, cbfun); return cbfun; } GLFWAPI GLFWcharfun glfwSetCharCallback(GLFWwindow* handle, GLFWcharfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.character, cbfun); return cbfun; } GLFWAPI GLFWcharmodsfun glfwSetCharModsCallback(GLFWwindow* handle, GLFWcharmodsfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.charmods, cbfun); return cbfun; } GLFWAPI GLFWmousebuttonfun glfwSetMouseButtonCallback(GLFWwindow* handle, GLFWmousebuttonfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.mouseButton, cbfun); return cbfun; } GLFWAPI GLFWcursorposfun glfwSetCursorPosCallback(GLFWwindow* handle, GLFWcursorposfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.cursorPos, cbfun); return cbfun; } GLFWAPI GLFWcursorenterfun glfwSetCursorEnterCallback(GLFWwindow* handle, GLFWcursorenterfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.cursorEnter, cbfun); return cbfun; } GLFWAPI GLFWscrollfun glfwSetScrollCallback(GLFWwindow* handle, GLFWscrollfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.scroll, cbfun); return cbfun; } GLFWAPI GLFWdropfun glfwSetDropCallback(GLFWwindow* handle, GLFWdropfun cbfun) { _GLFWwindow* window = (_GLFWwindow*) handle; assert(window != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(window->callbacks.drop, cbfun); return cbfun; } GLFWAPI int glfwJoystickPresent(int jid) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return GLFW_FALSE; } js = _glfw.joysticks + jid; if (!js->present) return GLFW_FALSE; return _glfwPlatformPollJoystick(js, _GLFW_POLL_PRESENCE); } GLFWAPI const float* glfwGetJoystickAxes(int jid, int* count) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); assert(count != NULL); *count = 0; _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return NULL; } js = _glfw.joysticks + jid; if (!js->present) return NULL; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_AXES)) return NULL; *count = js->axisCount; return js->axes; } GLFWAPI const unsigned char* glfwGetJoystickButtons(int jid, int* count) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); assert(count != NULL); *count = 0; _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return NULL; } js = _glfw.joysticks + jid; if (!js->present) return NULL; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_BUTTONS)) return NULL; if (_glfw.hints.init.hatButtons) *count = js->buttonCount + js->hatCount * 4; else *count = js->buttonCount; return js->buttons; } GLFWAPI const unsigned char* glfwGetJoystickHats(int jid, int* count) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); assert(count != NULL); *count = 0; _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return NULL; } js = _glfw.joysticks + jid; if (!js->present) return NULL; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_BUTTONS)) return NULL; *count = js->hatCount; return js->hats; } GLFWAPI const char* glfwGetJoystickName(int jid) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return NULL; } js = _glfw.joysticks + jid; if (!js->present) return NULL; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_PRESENCE)) return NULL; return js->name; } GLFWAPI const char* glfwGetJoystickGUID(int jid) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return NULL; } js = _glfw.joysticks + jid; if (!js->present) return NULL; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_PRESENCE)) return NULL; return js->guid; } GLFWAPI void glfwSetJoystickUserPointer(int jid, void* pointer) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT(); js = _glfw.joysticks + jid; if (!js->present) return; js->userPointer = pointer; } GLFWAPI void* glfwGetJoystickUserPointer(int jid) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); js = _glfw.joysticks + jid; if (!js->present) return NULL; return js->userPointer; } GLFWAPI GLFWjoystickfun glfwSetJoystickCallback(GLFWjoystickfun cbfun) { _GLFW_REQUIRE_INIT_OR_RETURN(NULL); _GLFW_SWAP_POINTERS(_glfw.callbacks.joystick, cbfun); return cbfun; } GLFWAPI int glfwUpdateGamepadMappings(const char* string) { int jid; const char* c = string; assert(string != NULL); _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE); while (*c) { if ((*c >= '0' && *c <= '9') || (*c >= 'a' && *c <= 'f') || (*c >= 'A' && *c <= 'F')) { char line[1024]; const size_t length = strcspn(c, "\r\n"); if (length < sizeof(line)) { _GLFWmapping mapping = {{0}}; memcpy(line, c, length); line[length] = '\0'; if (parseMapping(&mapping, line)) { _GLFWmapping* previous = findMapping(mapping.guid); if (previous) *previous = mapping; else { _glfw.mappingCount++; _glfw.mappings = realloc(_glfw.mappings, sizeof(_GLFWmapping) * _glfw.mappingCount); _glfw.mappings[_glfw.mappingCount - 1] = mapping; } } } c += length; } else { c += strcspn(c, "\r\n"); c += strspn(c, "\r\n"); } } for (jid = 0; jid <= GLFW_JOYSTICK_LAST; jid++) { _GLFWjoystick* js = _glfw.joysticks + jid; if (js->present) js->mapping = findValidMapping(js); } return GLFW_TRUE; } GLFWAPI int glfwJoystickIsGamepad(int jid) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return GLFW_FALSE; } js = _glfw.joysticks + jid; if (!js->present) return GLFW_FALSE; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_PRESENCE)) return GLFW_FALSE; return js->mapping != NULL; } GLFWAPI const char* glfwGetGamepadName(int jid) { _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); _GLFW_REQUIRE_INIT_OR_RETURN(NULL); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return NULL; } js = _glfw.joysticks + jid; if (!js->present) return NULL; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_PRESENCE)) return NULL; if (!js->mapping) return NULL; return js->mapping->name; } GLFWAPI int glfwGetGamepadState(int jid, GLFWgamepadstate* state) { int i; _GLFWjoystick* js; assert(jid >= GLFW_JOYSTICK_1); assert(jid <= GLFW_JOYSTICK_LAST); assert(state != NULL); memset(state, 0, sizeof(GLFWgamepadstate)); _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE); if (jid < 0 || jid > GLFW_JOYSTICK_LAST) { _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid); return GLFW_FALSE; } js = _glfw.joysticks + jid; if (!js->present) return GLFW_FALSE; if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_ALL)) return GLFW_FALSE; if (!js->mapping) return GLFW_FALSE; for (i = 0; i <= GLFW_GAMEPAD_BUTTON_LAST; i++) { const _GLFWmapelement* e = js->mapping->buttons + i; if (e->type == _GLFW_JOYSTICK_AXIS) { const float value = js->axes[e->index] * e->axisScale + e->axisOffset; // HACK: This should be baked into the value transform // TODO: Bake into transform when implementing output modifiers if (e->axisOffset < 0 || (e->axisOffset == 0 && e->axisScale > 0)) { if (value >= 0.f) state->buttons[i] = GLFW_PRESS; } else { if (value <= 0.f) state->buttons[i] = GLFW_PRESS; } } else if (e->type == _GLFW_JOYSTICK_HATBIT) { const unsigned int hat = e->index >> 4; const unsigned int bit = e->index & 0xf; if (js->hats[hat] & bit) state->buttons[i] = GLFW_PRESS; } else if (e->type == _GLFW_JOYSTICK_BUTTON) state->buttons[i] = js->buttons[e->index]; } for (i = 0; i <= GLFW_GAMEPAD_AXIS_LAST; i++) { const _GLFWmapelement* e = js->mapping->axes + i; if (e->type == _GLFW_JOYSTICK_AXIS) { const float value = js->axes[e->index] * e->axisScale + e->axisOffset; state->axes[i] = _glfw_fminf(_glfw_fmaxf(value, -1.f), 1.f); } else if (e->type == _GLFW_JOYSTICK_HATBIT) { const unsigned int hat = e->index >> 4; const unsigned int bit = e->index & 0xf; if (js->hats[hat] & bit) state->axes[i] = 1.f; else state->axes[i] = -1.f; } else if (e->type == _GLFW_JOYSTICK_BUTTON) state->axes[i] = js->buttons[e->index] * 2.f - 1.f; } return GLFW_TRUE; } GLFWAPI void glfwSetClipboardString(GLFWwindow* handle, const char* string) { assert(string != NULL); _GLFW_REQUIRE_INIT(); _glfwPlatformSetClipboardString(string); } GLFWAPI const char* glfwGetClipboardString(GLFWwindow* handle) { _GLFW_REQUIRE_INIT_OR_RETURN(NULL); return _glfwPlatformGetClipboardString(); } GLFWAPI double glfwGetTime(void) { _GLFW_REQUIRE_INIT_OR_RETURN(0.0); return (double) (_glfwPlatformGetTimerValue() - _glfw.timer.offset) / _glfwPlatformGetTimerFrequency(); } GLFWAPI void glfwSetTime(double time) { _GLFW_REQUIRE_INIT(); if (time != time || time < 0.0 || time > 18446744073.0) { _glfwInputError(GLFW_INVALID_VALUE, "Invalid time %f", time); return; } _glfw.timer.offset = _glfwPlatformGetTimerValue() - (uint64_t) (time * _glfwPlatformGetTimerFrequency()); } GLFWAPI uint64_t glfwGetTimerValue(void) { _GLFW_REQUIRE_INIT_OR_RETURN(0); return _glfwPlatformGetTimerValue(); } GLFWAPI uint64_t glfwGetTimerFrequency(void) { _GLFW_REQUIRE_INIT_OR_RETURN(0); return _glfwPlatformGetTimerFrequency(); }