Initial Commit

1 files changed, 659 insertions, 0 deletions

diff --git a/glfw-3.2.1/src/input.c b/glfw-3.2.1/src/input.c
new file mode 100644
index 0000000..614c6ef
--- /dev/null
+++ b/glfw-3.2.1/src/input.c
@@ -0,0 +1,659 @@
+//========================================================================
+// GLFW 3.2 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2016 Camilla Berglund <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 <stdlib.h>
+
+// Internal key state used for sticky keys
+#define _GLFW_STICK 3
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                         GLFW event API                       //////
+//////////////////////////////////////////////////////////////////////////
+
+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->callbacks.key)
+        window->callbacks.key((GLFWwindow*) window, key, scancode, action, mods);
+}
+
+void _glfwInputChar(_GLFWwindow* window, unsigned int codepoint, int mods, GLFWbool plain)
+{
+    if (codepoint < 32 || (codepoint > 126 && codepoint < 160))
+        return;
+
+    if (window->callbacks.charmods)
+        window->callbacks.charmods((GLFWwindow*) window, codepoint, mods);
+
+    if (plain)
+    {
+        if (window->callbacks.character)
+            window->callbacks.character((GLFWwindow*) window, codepoint);
+    }
+}
+
+void _glfwInputScroll(_GLFWwindow* window, double xoffset, double yoffset)
+{
+    if (window->callbacks.scroll)
+        window->callbacks.scroll((GLFWwindow*) window, xoffset, yoffset);
+}
+
+void _glfwInputMouseClick(_GLFWwindow* window, int button, int action, int mods)
+{
+    if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST)
+        return;
+
+    // Register mouse button action
+    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);
+}
+
+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);
+}
+
+void _glfwInputCursorEnter(_GLFWwindow* window, GLFWbool entered)
+{
+    if (window->callbacks.cursorEnter)
+        window->callbacks.cursorEnter((GLFWwindow*) window, entered);
+}
+
+void _glfwInputDrop(_GLFWwindow* window, int count, const char** paths)
+{
+    if (window->callbacks.drop)
+        window->callbacks.drop((GLFWwindow*) window, count, paths);
+}
+
+void _glfwInputJoystickChange(int joy, int event)
+{
+    if (_glfw.callbacks.joystick)
+        _glfw.callbacks.joystick(joy, event);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+GLFWbool _glfwIsPrintable(int key)
+{
+    return (key >= GLFW_KEY_APOSTROPHE && key <= GLFW_KEY_WORLD_2) ||
+           (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_ADD) ||
+           key == GLFW_KEY_KP_EQUAL;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                        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;
+        default:
+            _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode %i", mode);
+            return 0;
+    }
+}
+
+GLFWAPI void glfwSetInputMode(GLFWwindow* handle, int mode, int value)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_REQUIRE_INIT();
+
+    switch (mode)
+    {
+        case GLFW_CURSOR:
+        {
+            if (value != GLFW_CURSOR_NORMAL &&
+                value != GLFW_CURSOR_HIDDEN &&
+                value != GLFW_CURSOR_DISABLED)
+            {
+                _glfwInputError(GLFW_INVALID_ENUM,
+                                "Invalid cursor mode %i",
+                                value);
+                return;
+            }
+
+            if (window->cursorMode == value)
+                return;
+
+            window->cursorMode = value;
+
+            _glfwPlatformGetCursorPos(window,
+                                      &window->virtualCursorPosX,
+                                      &window->virtualCursorPosY);
+
+            if (_glfwPlatformWindowFocused(window))
+                _glfwPlatformSetCursorMode(window, value);
+
+            return;
+        }
+
+        case GLFW_STICKY_KEYS:
+        {
+            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 ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        }
+
+        case GLFW_STICKY_MOUSE_BUTTONS:
+        {
+            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 ? GLFW_TRUE : GLFW_FALSE;
+            return;
+        }
+    }
+
+    _glfwInputError(GLFW_INVALID_ENUM, "Invalid input mode %i", mode);
+}
+
+GLFWAPI const char* glfwGetKeyName(int key, int scancode)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfwPlatformGetKeyName(key, scancode);
+}
+
+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 %i", 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 joy)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+
+    if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick %i", joy);
+        return 0;
+    }
+
+    return _glfwPlatformJoystickPresent(joy);
+}
+
+GLFWAPI const float* glfwGetJoystickAxes(int joy, int* count)
+{
+    assert(count != NULL);
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick %i", joy);
+        return NULL;
+    }
+
+    return _glfwPlatformGetJoystickAxes(joy, count);
+}
+
+GLFWAPI const unsigned char* glfwGetJoystickButtons(int joy, int* count)
+{
+    assert(count != NULL);
+    *count = 0;
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick %i", joy);
+        return NULL;
+    }
+
+    return _glfwPlatformGetJoystickButtons(joy, count);
+}
+
+GLFWAPI const char* glfwGetJoystickName(int joy)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+
+    if (joy < 0 || joy > GLFW_JOYSTICK_LAST)
+    {
+        _glfwInputError(GLFW_INVALID_ENUM, "Invalid joystick %i", joy);
+        return NULL;
+    }
+
+    return _glfwPlatformGetJoystickName(joy);
+}
+
+GLFWAPI GLFWjoystickfun glfwSetJoystickCallback(GLFWjoystickfun cbfun)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    _GLFW_SWAP_POINTERS(_glfw.callbacks.joystick, cbfun);
+    return cbfun;
+}
+
+GLFWAPI void glfwSetClipboardString(GLFWwindow* handle, const char* string)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+    assert(string != NULL);
+
+    _GLFW_REQUIRE_INIT();
+    _glfwPlatformSetClipboardString(window, string);
+}
+
+GLFWAPI const char* glfwGetClipboardString(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*) handle;
+    assert(window != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
+    return _glfwPlatformGetClipboardString(window);
+}
+
+GLFWAPI double glfwGetTime(void)
+{
+    _GLFW_REQUIRE_INIT_OR_RETURN(0.0);
+    return (double) (_glfwPlatformGetTimerValue() - _glfw.timerOffset) /
+        _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.timerOffset = _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();
+}
+