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kitty/glfw/input.c
Luflosi fb98aa650d
Reduce the difference of glfw to upstream 
This only changes some formatting, whitespace, etc.. There are no
changes to the functionality.
Let me know if you don't like some of those changes.
2019-06-20 21:40:59 +02:00

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//========================================================================
// GLFW 3.3 - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2016 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.
//
//========================================================================
#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 bool isValidElementForJoystick(const _GLFWmapelement* e,
const _GLFWjoystick* js)
{
if (e->type == _GLFW_JOYSTICK_HATBIT && (e->index >> 4) >= js->hatCount)
return false;
else if (e->type == _GLFW_JOYSTICK_BUTTON && e->index >= js->buttonCount)
return false;
else if (e->type == _GLFW_JOYSTICK_AXIS && e->index >= js->axisCount)
return false;
return 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 bool 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 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 false;
}
memcpy(mapping->name, c, length);
c += length + 1;
while (*c)
{
// TODO: Implement output modifiers
if (*c == '+' || *c == '-')
return 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 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 true;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW event API //////
//////////////////////////////////////////////////////////////////////////
// Notifies shared code of a key event
//
void _glfwInputKeyboard(_GLFWwindow* window, int key, int scancode, int action, int mods, const char* text, int state)
{
if (key >= 0 && key <= GLFW_KEY_LAST)
{
bool repeated = false;
if (action == GLFW_RELEASE && window->keys[key] == GLFW_RELEASE)
return;
if (action == GLFW_PRESS && window->keys[key] == GLFW_PRESS)
repeated = 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->callbacks.keyboard) {
if (!window->lockKeyMods) mods &= ~(GLFW_MOD_CAPS_LOCK | GLFW_MOD_NUM_LOCK);
window->callbacks.keyboard((GLFWwindow*) window, key, scancode, action, mods, text, state);
}
}
// Notifies shared code of a scroll event
//
void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset, int flags)
{
if (window->callbacks.scroll)
window->callbacks.scroll((GLFWwindow*) window, xoffset, yoffset, flags);
}
// 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, bool 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 = 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));
}
const char* _glfwGetKeyName(int key)
{
switch (key)
{
// Printable keys
case GLFW_KEY_A: return "A";
case GLFW_KEY_B: return "B";
case GLFW_KEY_C: return "C";
case GLFW_KEY_D: return "D";
case GLFW_KEY_E: return "E";
case GLFW_KEY_F: return "F";
case GLFW_KEY_G: return "G";
case GLFW_KEY_H: return "H";
case GLFW_KEY_I: return "I";
case GLFW_KEY_J: return "J";
case GLFW_KEY_K: return "K";
case GLFW_KEY_L: return "L";
case GLFW_KEY_M: return "M";
case GLFW_KEY_N: return "N";
case GLFW_KEY_O: return "O";
case GLFW_KEY_P: return "P";
case GLFW_KEY_Q: return "Q";
case GLFW_KEY_R: return "R";
case GLFW_KEY_S: return "S";
case GLFW_KEY_T: return "T";
case GLFW_KEY_U: return "U";
case GLFW_KEY_V: return "V";
case GLFW_KEY_W: return "W";
case GLFW_KEY_X: return "X";
case GLFW_KEY_Y: return "Y";
case GLFW_KEY_Z: return "Z";
case GLFW_KEY_1: return "1";
case GLFW_KEY_2: return "2";
case GLFW_KEY_3: return "3";
case GLFW_KEY_4: return "4";
case GLFW_KEY_5: return "5";
case GLFW_KEY_6: return "6";
case GLFW_KEY_7: return "7";
case GLFW_KEY_8: return "8";
case GLFW_KEY_9: return "9";
case GLFW_KEY_0: return "0";
case GLFW_KEY_SPACE: return "SPACE";
case GLFW_KEY_MINUS: return "MINUS";
case GLFW_KEY_EQUAL: return "EQUAL";
case GLFW_KEY_LEFT_BRACKET: return "LEFT BRACKET";
case GLFW_KEY_RIGHT_BRACKET: return "RIGHT BRACKET";
case GLFW_KEY_BACKSLASH: return "BACKSLASH";
case GLFW_KEY_SEMICOLON: return "SEMICOLON";
case GLFW_KEY_APOSTROPHE: return "APOSTROPHE";
case GLFW_KEY_GRAVE_ACCENT: return "GRAVE ACCENT";
case GLFW_KEY_COMMA: return "COMMA";
case GLFW_KEY_PERIOD: return "PERIOD";
case GLFW_KEY_SLASH: return "SLASH";
case GLFW_KEY_WORLD_1: return "WORLD 1";
case GLFW_KEY_WORLD_2: return "WORLD 2";
case GLFW_KEY_PLUS: return "PLUS";
case GLFW_KEY_UNDERSCORE: return "UNDERSCORE";
// Function keys
case GLFW_KEY_ESCAPE: return "ESCAPE";
case GLFW_KEY_F1: return "F1";
case GLFW_KEY_F2: return "F2";
case GLFW_KEY_F3: return "F3";
case GLFW_KEY_F4: return "F4";
case GLFW_KEY_F5: return "F5";
case GLFW_KEY_F6: return "F6";
case GLFW_KEY_F7: return "F7";
case GLFW_KEY_F8: return "F8";
case GLFW_KEY_F9: return "F9";
case GLFW_KEY_F10: return "F10";
case GLFW_KEY_F11: return "F11";
case GLFW_KEY_F12: return "F12";
case GLFW_KEY_F13: return "F13";
case GLFW_KEY_F14: return "F14";
case GLFW_KEY_F15: return "F15";
case GLFW_KEY_F16: return "F16";
case GLFW_KEY_F17: return "F17";
case GLFW_KEY_F18: return "F18";
case GLFW_KEY_F19: return "F19";
case GLFW_KEY_F20: return "F20";
case GLFW_KEY_F21: return "F21";
case GLFW_KEY_F22: return "F22";
case GLFW_KEY_F23: return "F23";
case GLFW_KEY_F24: return "F24";
case GLFW_KEY_F25: return "F25";
case GLFW_KEY_UP: return "UP";
case GLFW_KEY_DOWN: return "DOWN";
case GLFW_KEY_LEFT: return "LEFT";
case GLFW_KEY_RIGHT: return "RIGHT";
case GLFW_KEY_LEFT_SHIFT: return "LEFT SHIFT";
case GLFW_KEY_RIGHT_SHIFT: return "RIGHT SHIFT";
case GLFW_KEY_LEFT_CONTROL: return "LEFT CONTROL";
case GLFW_KEY_RIGHT_CONTROL: return "RIGHT CONTROL";
case GLFW_KEY_LEFT_ALT: return "LEFT ALT";
case GLFW_KEY_RIGHT_ALT: return "RIGHT ALT";
case GLFW_KEY_TAB: return "TAB";
case GLFW_KEY_ENTER: return "ENTER";
case GLFW_KEY_BACKSPACE: return "BACKSPACE";
case GLFW_KEY_INSERT: return "INSERT";
case GLFW_KEY_DELETE: return "DELETE";
case GLFW_KEY_PAGE_UP: return "PAGE UP";
case GLFW_KEY_PAGE_DOWN: return "PAGE DOWN";
case GLFW_KEY_HOME: return "HOME";
case GLFW_KEY_END: return "END";
case GLFW_KEY_KP_0: return "KEYPAD 0";
case GLFW_KEY_KP_1: return "KEYPAD 1";
case GLFW_KEY_KP_2: return "KEYPAD 2";
case GLFW_KEY_KP_3: return "KEYPAD 3";
case GLFW_KEY_KP_4: return "KEYPAD 4";
case GLFW_KEY_KP_5: return "KEYPAD 5";
case GLFW_KEY_KP_6: return "KEYPAD 6";
case GLFW_KEY_KP_7: return "KEYPAD 7";
case GLFW_KEY_KP_8: return "KEYPAD 8";
case GLFW_KEY_KP_9: return "KEYPAD 9";
case GLFW_KEY_KP_DIVIDE: return "KEYPAD DIVIDE";
case GLFW_KEY_KP_MULTIPLY: return "KEYPAD MULTPLY";
case GLFW_KEY_KP_SUBTRACT: return "KEYPAD SUBTRACT";
case GLFW_KEY_KP_ADD: return "KEYPAD ADD";
case GLFW_KEY_KP_DECIMAL: return "KEYPAD DECIMAL";
case GLFW_KEY_KP_EQUAL: return "KEYPAD EQUAL";
case GLFW_KEY_KP_ENTER: return "KEYPAD ENTER";
case GLFW_KEY_PRINT_SCREEN: return "PRINT SCREEN";
case GLFW_KEY_NUM_LOCK: return "NUM LOCK";
case GLFW_KEY_CAPS_LOCK: return "CAPS LOCK";
case GLFW_KEY_SCROLL_LOCK: return "SCROLL LOCK";
case GLFW_KEY_PAUSE: return "PAUSE";
case GLFW_KEY_LEFT_SUPER: return "LEFT SUPER";
case GLFW_KEY_RIGHT_SUPER: return "RIGHT SUPER";
case GLFW_KEY_MENU: return "MENU";
default: return "UNKNOWN";
}
}
// Center the cursor in the middle of 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;
}
_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 ? true : 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 ? true : 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 ? true : false;
}
else
_glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode 0x%08X", mode);
}
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, int count)
{
_GLFWcursor* cursor;
assert(image != NULL);
assert(count > 0);
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
cursor = calloc(1, sizeof(_GLFWcursor));
cursor->next = _glfw.cursorListHead;
_glfw.cursorListHead = cursor;
if (!_glfwPlatformCreateCursor(cursor, image, xhot, yhot, count))
{
glfwDestroyCursor((GLFWcursor*) cursor);
return NULL;
}
return (GLFWcursor*) cursor;
}
GLFWAPI GLFWcursor* glfwCreateStandardCursor(GLFWCursorShape shape)
{
_GLFWcursor* cursor;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (shape >= GLFW_INVALID_CURSOR)
{
_glfwInputError(GLFW_INVALID_ENUM, "Invalid standard cursor: %d", 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 GLFWkeyboardfun glfwSetKeyboardCallback(GLFWwindow* handle, GLFWkeyboardfun cbfun)
{
_GLFWwindow* window = (_GLFWwindow*) handle;
assert(window != NULL);
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
_GLFW_SWAP_POINTERS(window->callbacks.keyboard, cbfun);
return cbfun;
}
GLFWAPI void glfwUpdateIMEState(GLFWwindow* handle, int which, int a, int b, int c, int d) {
_GLFWwindow* window = (_GLFWwindow*) handle;
assert(window != NULL);
_GLFW_REQUIRE_INIT();
#if defined(_GLFW_X11) || defined(_GLFW_WAYLAND) || defined(_GLFW_COCOA)
_glfwPlatformUpdateIMEState(window, which, a, b, c, d);
#else
(void)window; (void)which; (void)a; (void)b; (void)c; (void)d;
#endif
}
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(false);
if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
{
_glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
return false;
}
js = _glfw.joysticks + jid;
if (!js->present)
return 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(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 true;
}
GLFWAPI int glfwJoystickIsGamepad(int jid)
{
_GLFWjoystick* js;
assert(jid >= GLFW_JOYSTICK_1);
assert(jid <= GLFW_JOYSTICK_LAST);
_GLFW_REQUIRE_INIT_OR_RETURN(false);
if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
{
_glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
return false;
}
js = _glfw.joysticks + jid;
if (!js->present)
return false;
if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_PRESENCE))
return 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(false);
if (jid < 0 || jid > GLFW_JOYSTICK_LAST)
{
_glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick ID %i", jid);
return false;
}
js = _glfw.joysticks + jid;
if (!js->present)
return false;
if (!_glfwPlatformPollJoystick(js, _GLFW_POLL_ALL))
return false;
if (!js->mapping)
return 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;
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] = fminf(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 if (e->type == _GLFW_JOYSTICK_BUTTON)
state->axes[i] = (float) js->buttons[e->index];
}
return 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();
}
#if defined(_GLFW_X11) || defined(_GLFW_WAYLAND)
GLFWAPI void glfwSetPrimarySelectionString(GLFWwindow* handle, const char* string)
{
assert(string != NULL);
_GLFW_REQUIRE_INIT();
_glfwPlatformSetPrimarySelectionString(string);
}
GLFWAPI const char* glfwGetPrimarySelectionString(GLFWwindow* handle)
{
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
return _glfwPlatformGetPrimarySelectionString();
}
#endif
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();
}
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