diff options
Diffstat (limited to 'vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/input.c')
| -rw-r--r-- | vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/input.c | 1367 |
1 files changed, 1367 insertions, 0 deletions
diff --git a/vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/input.c b/vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/input.c new file mode 100644 index 0000000..9693024 --- /dev/null +++ b/vendor/github.com/go-gl/glfw/v3.3/glfw/glfw/src/input.c @@ -0,0 +1,1367 @@ +//======================================================================== +// 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 "mappings.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)) + return NULL; + } + + for (i = 0; i <= GLFW_GAMEPAD_AXIS_LAST; i++) + { + if (!isValidElementForJoystick(mapping->axes + i, js)) + 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 ////// +////////////////////////////////////////////////////////////////////////// + +// Adds the built-in set of gamepad mappings +// +void _glfwInitGamepadMappings(void) +{ + int jid; + size_t i; + const size_t count = sizeof(_glfwDefaultMappings) / sizeof(char*); + _glfw.mappings = calloc(count, sizeof(_GLFWmapping)); + + for (i = 0; i < count; i++) + { + if (parseMapping(&_glfw.mappings[_glfw.mappingCount], _glfwDefaultMappings[i])) + _glfw.mappingCount++; + } + + for (jid = 0; jid <= GLFW_JOYSTICK_LAST; jid++) + { + _GLFWjoystick* js = _glfw.joysticks + jid; + if (js->present) + js->mapping = findValidMapping(js); + } +} + +// 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->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->name, name, sizeof(js->name) - 1); + 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->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(); +} |