1220 lines
36 KiB
C
1220 lines
36 KiB
C
//========================================================================
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// GLFW - An OpenGL framework
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// Platform: Any
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// API version: 3.0
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// WWW: http://www.glfw.org/
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#include "internal.h"
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#include <limits.h>
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#include <string.h>
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#include <stdlib.h>
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//========================================================================
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// Return the maxiumum of the specified values
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//========================================================================
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static int Max(int a, int b)
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{
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return (a > b) ? a : b;
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}
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//========================================================================
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// Close all GLFW windows with the closed flag set
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//========================================================================
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static void closeFlaggedWindows(void)
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{
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_GLFWwindow* window;
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for (window = _glfwLibrary.windowListHead; window; )
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{
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if (window->closeRequested && _glfwLibrary.windowCloseCallback)
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window->closeRequested = _glfwLibrary.windowCloseCallback(window);
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if (window->closeRequested)
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{
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_GLFWwindow* next = window->next;
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glfwCloseWindow(window);
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window = next;
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}
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else
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window = window->next;
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}
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}
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//========================================================================
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// Clear scroll offsets for all windows
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//========================================================================
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void clearScrollOffsets(void)
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{
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_GLFWwindow* window;
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for (window = _glfwLibrary.windowListHead; window; window = window->next)
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{
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window->scrollX = 0;
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window->scrollY = 0;
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}
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}
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//========================================================================
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// Clear all input state
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//========================================================================
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void clearInputState(_GLFWwindow* window)
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{
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int i;
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// Release all keyboard keys
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for (i = 0; i <= GLFW_KEY_LAST; i++)
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window->key[i] = GLFW_RELEASE;
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// Release all mouse buttons
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for (i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i++)
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window->mouseButton[i] = GLFW_RELEASE;
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// Set mouse position to (0,0)
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window->mousePosX = 0;
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window->mousePosY = 0;
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// Set scroll offsets to (0,0)
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window->scrollX = 0;
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window->scrollY = 0;
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// The default is to use non sticky keys and mouse buttons
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window->stickyKeys = GL_FALSE;
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window->stickyMouseButtons = GL_FALSE;
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// The default is to disable key repeat
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window->keyRepeat = GL_FALSE;
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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//========================================================================
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// Clear all open window hints
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//========================================================================
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void _glfwClearWindowHints(void)
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{
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memset(&_glfwLibrary.hints, 0, sizeof(_glfwLibrary.hints));
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// The default OpenGL version is 1.0
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_glfwLibrary.hints.glMajor = 1;
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_glfwLibrary.hints.glMinor = 0;
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}
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//========================================================================
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// Register keyboard activity
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//========================================================================
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void _glfwInputKey(_GLFWwindow* window, int key, int action)
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{
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GLboolean keyrepeat = GL_FALSE;
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if (key < 0 || key > GLFW_KEY_LAST)
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return;
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// Are we trying to release an already released key?
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if (action == GLFW_RELEASE && window->key[key] != GLFW_PRESS)
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return;
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// Register key action
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if(action == GLFW_RELEASE && window->stickyKeys)
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window->key[key] = GLFW_STICK;
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else
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{
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keyrepeat = (window->key[key] == GLFW_PRESS) && (action == GLFW_PRESS);
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window->key[key] = (char) action;
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}
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// Call user callback function
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if (_glfwLibrary.keyCallback && (window->keyRepeat || !keyrepeat))
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_glfwLibrary.keyCallback(window, key, action);
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}
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//========================================================================
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// Register (keyboard) character activity
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//========================================================================
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void _glfwInputChar(_GLFWwindow* window, int character)
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{
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// Valid Unicode (ISO 10646) character?
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if (!((character >= 32 && character <= 126) || character >= 160))
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return;
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if (_glfwLibrary.charCallback)
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_glfwLibrary.charCallback(window, character);
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}
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//========================================================================
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// Register scroll events
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//========================================================================
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void _glfwInputScroll(_GLFWwindow* window, int xoffset, int yoffset)
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{
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window->scrollX += xoffset;
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window->scrollY += yoffset;
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if (_glfwLibrary.scrollCallback)
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_glfwLibrary.scrollCallback(window, xoffset, yoffset);
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}
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//========================================================================
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// Register mouse button clicks
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//========================================================================
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void _glfwInputMouseClick(_GLFWwindow* window, int button, int action)
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{
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if (button < 0 || button > GLFW_MOUSE_BUTTON_LAST)
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return;
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// Register mouse button action
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if (action == GLFW_RELEASE && window->stickyMouseButtons)
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window->mouseButton[button] = GLFW_STICK;
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else
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window->mouseButton[button] = (char) action;
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if (_glfwLibrary.mouseButtonCallback)
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_glfwLibrary.mouseButtonCallback(window, button, action);
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}
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//========================================================================
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// Register window focus events
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//========================================================================
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void _glfwInputWindowFocus(_GLFWwindow* window, GLboolean activated)
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{
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if (activated)
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{
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if (_glfwLibrary.activeWindow != window)
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{
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_glfwLibrary.activeWindow = window;
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if (_glfwLibrary.windowFocusCallback)
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_glfwLibrary.windowFocusCallback(window, activated);
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}
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}
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else
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{
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if (_glfwLibrary.activeWindow == window)
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{
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int i;
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// Release all pressed keyboard keys
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for (i = 0; i <= GLFW_KEY_LAST; i++)
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{
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if (window->key[i] == GLFW_PRESS)
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_glfwInputKey(window, i, GLFW_RELEASE);
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}
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// Release all pressed mouse buttons
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for (i = 0; i <= GLFW_MOUSE_BUTTON_LAST; i++)
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{
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if (window->mouseButton[i] == GLFW_PRESS)
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_glfwInputMouseClick(window, i, GLFW_RELEASE);
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}
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_glfwLibrary.activeWindow = NULL;
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if (_glfwLibrary.windowFocusCallback)
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_glfwLibrary.windowFocusCallback(window, activated);
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}
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}
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}
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//========================================================================
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// Return the available framebuffer config closest to the desired values
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// This is based on the manual GLX Visual selection from 2.6
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//========================================================================
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const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
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const _GLFWfbconfig* alternatives,
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unsigned int count)
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{
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unsigned int i;
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unsigned int missing, leastMissing = UINT_MAX;
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unsigned int colorDiff, leastColorDiff = UINT_MAX;
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unsigned int extraDiff, leastExtraDiff = UINT_MAX;
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const _GLFWfbconfig* current;
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const _GLFWfbconfig* closest = NULL;
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for (i = 0; i < count; i++)
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{
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current = alternatives + i;
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if (desired->stereo > 0 && current->stereo == 0)
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{
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// Stereo is a hard constraint
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continue;
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}
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// Count number of missing buffers
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{
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missing = 0;
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if (desired->alphaBits > 0 && current->alphaBits == 0)
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missing++;
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if (desired->depthBits > 0 && current->depthBits == 0)
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missing++;
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if (desired->stencilBits > 0 && current->stencilBits == 0)
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missing++;
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if (desired->auxBuffers > 0 && current->auxBuffers < desired->auxBuffers)
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missing += desired->auxBuffers - current->auxBuffers;
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if (desired->samples > 0 && current->samples == 0)
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{
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// Technically, several multisampling buffers could be
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// involved, but that's a lower level implementation detail and
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// not important to us here, so we count them as one
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missing++;
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}
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}
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// These polynomials make many small channel size differences matter
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// less than one large channel size difference
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// Calculate color channel size difference value
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{
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colorDiff = 0;
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if (desired->redBits > 0)
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{
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colorDiff += (desired->redBits - current->redBits) *
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(desired->redBits - current->redBits);
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}
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if (desired->greenBits > 0)
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{
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colorDiff += (desired->greenBits - current->greenBits) *
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(desired->greenBits - current->greenBits);
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}
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if (desired->blueBits > 0)
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{
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colorDiff += (desired->blueBits - current->blueBits) *
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(desired->blueBits - current->blueBits);
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}
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}
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// Calculate non-color channel size difference value
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{
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extraDiff = 0;
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if (desired->alphaBits > 0)
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{
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extraDiff += (desired->alphaBits - current->alphaBits) *
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(desired->alphaBits - current->alphaBits);
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}
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if (desired->depthBits > 0)
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{
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extraDiff += (desired->depthBits - current->depthBits) *
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(desired->depthBits - current->depthBits);
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}
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if (desired->stencilBits > 0)
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{
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extraDiff += (desired->stencilBits - current->stencilBits) *
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(desired->stencilBits - current->stencilBits);
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}
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if (desired->accumRedBits > 0)
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{
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extraDiff += (desired->accumRedBits - current->accumRedBits) *
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(desired->accumRedBits - current->accumRedBits);
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}
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if (desired->accumGreenBits > 0)
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{
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extraDiff += (desired->accumGreenBits - current->accumGreenBits) *
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(desired->accumGreenBits - current->accumGreenBits);
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}
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if (desired->accumBlueBits > 0)
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{
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extraDiff += (desired->accumBlueBits - current->accumBlueBits) *
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(desired->accumBlueBits - current->accumBlueBits);
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}
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if (desired->accumAlphaBits > 0)
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{
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extraDiff += (desired->accumAlphaBits - current->accumAlphaBits) *
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(desired->accumAlphaBits - current->accumAlphaBits);
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}
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if (desired->samples > 0)
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{
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extraDiff += (desired->samples - current->samples) *
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(desired->samples - current->samples);
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}
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}
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// Figure out if the current one is better than the best one found so far
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// Missing buffers is the most important heuristic, then color buffer size
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// mismatches and lastly size mismatches for other buffers
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if (missing < leastMissing)
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closest = current;
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else if (missing == leastMissing)
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{
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if ((colorDiff < leastColorDiff) ||
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(colorDiff == leastColorDiff && extraDiff < leastExtraDiff))
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{
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closest = current;
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}
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}
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if (current == closest)
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{
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leastMissing = missing;
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leastColorDiff = colorDiff;
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leastExtraDiff = extraDiff;
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}
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}
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return closest;
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW public API //////
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//////////////////////////////////////////////////////////////////////////
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//========================================================================
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// Create the GLFW window and its associated context
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//========================================================================
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GLFWAPI GLFWwindow glfwOpenWindow(int width, int height,
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int mode, const char* title,
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GLFWwindow share)
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{
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_GLFWfbconfig fbconfig;
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_GLFWwndconfig wndconfig;
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_GLFWwindow* window;
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if (!_glfwInitialized)
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{
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_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
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return NULL;
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}
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window = (_GLFWwindow*) malloc(sizeof(_GLFWwindow));
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if (!window)
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{
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_glfwSetError(GLFW_OUT_OF_MEMORY, "glfwOpenWindow: Failed to allocate window structure");
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return NULL;
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}
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memset(window, 0, sizeof(_GLFWwindow));
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window->next = _glfwLibrary.windowListHead;
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_glfwLibrary.windowListHead = window;
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// Set up desired framebuffer config
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fbconfig.redBits = Max(_glfwLibrary.hints.redBits, 0);
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fbconfig.greenBits = Max(_glfwLibrary.hints.greenBits, 0);
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fbconfig.blueBits = Max(_glfwLibrary.hints.blueBits, 0);
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fbconfig.alphaBits = Max(_glfwLibrary.hints.alphaBits, 0);
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fbconfig.depthBits = Max(_glfwLibrary.hints.depthBits, 0);
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fbconfig.stencilBits = Max(_glfwLibrary.hints.stencilBits, 0);
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fbconfig.accumRedBits = Max(_glfwLibrary.hints.accumRedBits, 0);
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fbconfig.accumGreenBits = Max(_glfwLibrary.hints.accumGreenBits, 0);
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fbconfig.accumBlueBits = Max(_glfwLibrary.hints.accumBlueBits, 0);
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fbconfig.accumAlphaBits = Max(_glfwLibrary.hints.accumAlphaBits, 0);
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fbconfig.auxBuffers = Max(_glfwLibrary.hints.auxBuffers, 0);
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fbconfig.stereo = _glfwLibrary.hints.stereo ? GL_TRUE : GL_FALSE;
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fbconfig.samples = Max(_glfwLibrary.hints.samples, 0);
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// Set up desired window config
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wndconfig.mode = mode;
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wndconfig.title = title;
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wndconfig.refreshRate = Max(_glfwLibrary.hints.refreshRate, 0);
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wndconfig.windowNoResize = _glfwLibrary.hints.windowNoResize ? GL_TRUE : GL_FALSE;
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wndconfig.glMajor = Max(_glfwLibrary.hints.glMajor, 1);
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wndconfig.glMinor = Max(_glfwLibrary.hints.glMinor, 0);
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wndconfig.glForward = _glfwLibrary.hints.glForward ? GL_TRUE : GL_FALSE;
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wndconfig.glDebug = _glfwLibrary.hints.glDebug ? GL_TRUE : GL_FALSE;
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wndconfig.glProfile = _glfwLibrary.hints.glProfile;
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wndconfig.share = share;
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// Clear for next open call
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_glfwClearWindowHints();
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if (wndconfig.glMajor == 1 && wndconfig.glMinor > 5)
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{
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// OpenGL 1.x series ended with version 1.5
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
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return GL_FALSE;
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}
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else if (wndconfig.glMajor == 2 && wndconfig.glMinor > 1)
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{
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// OpenGL 2.x series ended with version 2.1
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
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return GL_FALSE;
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}
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else if (wndconfig.glMajor == 3 && wndconfig.glMinor > 3)
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{
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// OpenGL 3.x series ended with version 3.3
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL version requested");
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return GL_FALSE;
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}
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else
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{
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// For now, let everything else through
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}
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if (wndconfig.glProfile == GLFW_OPENGL_ES2_PROFILE)
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{
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if (wndconfig.glMajor != 2 || wndconfig.glMinor < 0)
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{
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// The OpenGL ES 2.0 profile is currently only defined for version
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// 2.0 (see {WGL|GLX}_EXT_create_context_es2_profile), but for
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// compatibility with future updates to OpenGL ES, we allow
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// everything 2.x and let the driver report invalid versions
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Invalid OpenGL ES 2.x version requested");
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return GL_FALSE;
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}
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}
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else if (wndconfig.glProfile)
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{
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if (wndconfig.glMajor < 3 || (wndconfig.glMajor == 3 && wndconfig.glMinor < 2))
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{
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// Desktop OpenGL context profiles are only defined for version 3.2
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// and above
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Context profiles only exist for OpenGL version 3.2 and above");
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return GL_FALSE;
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}
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}
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if (wndconfig.glForward && wndconfig.glMajor < 3)
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{
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// Forward-compatible contexts are only defined for OpenGL version 3.0 and above
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_VALUE, "glfwOpenWindow: Forward compatibility only exist for OpenGL version 3.0 and above");
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return GL_FALSE;
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}
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|
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if (mode != GLFW_WINDOWED && mode != GLFW_FULLSCREEN)
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{
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// Invalid window mode
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glfwCloseWindow(window);
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_glfwSetError(GLFW_INVALID_ENUM, "glfwOpenWindow: Invalid enum for 'mode' parameter");
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return GL_FALSE;
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}
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clearInputState(window);
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|
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// Check width & height
|
|
if (width > 0 && height <= 0)
|
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{
|
|
// Set the window aspect ratio to 4:3
|
|
height = (width * 3) / 4;
|
|
}
|
|
else if (width <= 0 && height > 0)
|
|
{
|
|
// Set the window aspect ratio to 4:3
|
|
width = (height * 4) / 3;
|
|
}
|
|
else if (width <= 0 && height <= 0)
|
|
{
|
|
// Default window size
|
|
width = 640;
|
|
height = 480;
|
|
}
|
|
|
|
// Remember window settings
|
|
window->width = width;
|
|
window->height = height;
|
|
window->mode = mode;
|
|
|
|
// Platform specific window opening routine
|
|
if (!_glfwPlatformOpenWindow(window, &wndconfig, &fbconfig))
|
|
{
|
|
glfwCloseWindow(window);
|
|
return GL_FALSE;
|
|
}
|
|
|
|
// Get window parameters (such as color buffer bits etc)
|
|
glfwMakeWindowCurrent(window);
|
|
_glfwPlatformRefreshWindowParams();
|
|
|
|
// As these are hard constraints when non-zero, we can simply copy them
|
|
window->glProfile = wndconfig.glProfile;
|
|
window->glForward = wndconfig.glForward;
|
|
|
|
_glfwParseGLVersion(&window->glMajor, &window->glMinor, &window->glRevision);
|
|
|
|
if (window->glMajor < wndconfig.glMajor ||
|
|
(window->glMajor == wndconfig.glMajor &&
|
|
window->glMinor < wndconfig.glMinor))
|
|
{
|
|
// The desired OpenGL version is greater than the actual version
|
|
// This only happens if the machine lacks {GLX|WGL}_ARB_create_context
|
|
glfwCloseWindow(window);
|
|
_glfwSetError(GLFW_VERSION_UNAVAILABLE, "glfwOpenWindow: The requested OpenGL version is not available");
|
|
return GL_FALSE;
|
|
}
|
|
|
|
if (window->glMajor > 2)
|
|
{
|
|
window->GetStringi = (PFNGLGETSTRINGIPROC) glfwGetProcAddress("glGetStringi");
|
|
if (!window->GetStringi)
|
|
{
|
|
glfwCloseWindow(window);
|
|
_glfwSetError(GLFW_PLATFORM_ERROR, "glfwOpenWindow: Entry point retrieval is broken; see the build documentation for your platform");
|
|
return GL_FALSE;
|
|
}
|
|
}
|
|
|
|
// If full-screen mode was requested, disable mouse cursor
|
|
if (mode == GLFW_FULLSCREEN)
|
|
glfwDisable(window, GLFW_MOUSE_CURSOR);
|
|
|
|
// Start by clearing the front buffer to black (avoid ugly desktop
|
|
// remains in our OpenGL window)
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
_glfwPlatformSwapBuffers();
|
|
|
|
return window;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Make the OpenGL context associated with the specified window current
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwMakeWindowCurrent(GLFWwindow handle)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (_glfwLibrary.currentWindow == window)
|
|
return;
|
|
|
|
_glfwPlatformMakeWindowCurrent(window);
|
|
_glfwLibrary.currentWindow = window;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Returns GL_TRUE if the specified window handle is an actual window
|
|
//========================================================================
|
|
|
|
GLFWAPI int glfwIsWindow(GLFWwindow handle)
|
|
{
|
|
_GLFWwindow* entry;
|
|
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return GL_FALSE;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (window == NULL)
|
|
return GL_FALSE;
|
|
|
|
for (entry = _glfwLibrary.windowListHead; entry; entry = entry->next)
|
|
{
|
|
if (entry == window)
|
|
return GL_TRUE;
|
|
}
|
|
|
|
return GL_FALSE;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Returns GL_TRUE if the specified window handle is an actual window
|
|
//========================================================================
|
|
|
|
GLFWAPI GLFWwindow glfwGetCurrentWindow(void)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return GL_FALSE;
|
|
}
|
|
|
|
return _glfwLibrary.currentWindow;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set hints for opening the window
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwOpenWindowHint(int target, int hint)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
switch (target)
|
|
{
|
|
case GLFW_RED_BITS:
|
|
_glfwLibrary.hints.redBits = hint;
|
|
break;
|
|
case GLFW_GREEN_BITS:
|
|
_glfwLibrary.hints.greenBits = hint;
|
|
break;
|
|
case GLFW_BLUE_BITS:
|
|
_glfwLibrary.hints.blueBits = hint;
|
|
break;
|
|
case GLFW_ALPHA_BITS:
|
|
_glfwLibrary.hints.alphaBits = hint;
|
|
break;
|
|
case GLFW_DEPTH_BITS:
|
|
_glfwLibrary.hints.depthBits = hint;
|
|
break;
|
|
case GLFW_STENCIL_BITS:
|
|
_glfwLibrary.hints.stencilBits = hint;
|
|
break;
|
|
case GLFW_REFRESH_RATE:
|
|
_glfwLibrary.hints.refreshRate = hint;
|
|
break;
|
|
case GLFW_ACCUM_RED_BITS:
|
|
_glfwLibrary.hints.accumRedBits = hint;
|
|
break;
|
|
case GLFW_ACCUM_GREEN_BITS:
|
|
_glfwLibrary.hints.accumGreenBits = hint;
|
|
break;
|
|
case GLFW_ACCUM_BLUE_BITS:
|
|
_glfwLibrary.hints.accumBlueBits = hint;
|
|
break;
|
|
case GLFW_ACCUM_ALPHA_BITS:
|
|
_glfwLibrary.hints.accumAlphaBits = hint;
|
|
break;
|
|
case GLFW_AUX_BUFFERS:
|
|
_glfwLibrary.hints.auxBuffers = hint;
|
|
break;
|
|
case GLFW_STEREO:
|
|
_glfwLibrary.hints.stereo = hint;
|
|
break;
|
|
case GLFW_WINDOW_NO_RESIZE:
|
|
_glfwLibrary.hints.windowNoResize = hint;
|
|
break;
|
|
case GLFW_FSAA_SAMPLES:
|
|
_glfwLibrary.hints.samples = hint;
|
|
break;
|
|
case GLFW_OPENGL_VERSION_MAJOR:
|
|
_glfwLibrary.hints.glMajor = hint;
|
|
break;
|
|
case GLFW_OPENGL_VERSION_MINOR:
|
|
_glfwLibrary.hints.glMinor = hint;
|
|
break;
|
|
case GLFW_OPENGL_FORWARD_COMPAT:
|
|
_glfwLibrary.hints.glForward = hint;
|
|
break;
|
|
case GLFW_OPENGL_DEBUG_CONTEXT:
|
|
_glfwLibrary.hints.glDebug = hint;
|
|
break;
|
|
case GLFW_OPENGL_PROFILE:
|
|
_glfwLibrary.hints.glProfile = hint;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Properly kill the window / video display
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwCloseWindow(GLFWwindow handle)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
// Show mouse pointer again (if hidden)
|
|
if (window == _glfwLibrary.cursorLockWindow)
|
|
glfwEnable(window, GLFW_MOUSE_CURSOR);
|
|
|
|
// Clear the current context if this window's context is current
|
|
if (window == _glfwLibrary.currentWindow)
|
|
glfwMakeWindowCurrent(NULL);
|
|
|
|
// Clear the active window pointer if this is the active window
|
|
if (window == _glfwLibrary.activeWindow)
|
|
_glfwLibrary.activeWindow = NULL;
|
|
|
|
_glfwPlatformCloseWindow(window);
|
|
|
|
// Unlink window from global linked list
|
|
{
|
|
_GLFWwindow** prev = &_glfwLibrary.windowListHead;
|
|
|
|
while (*prev != window)
|
|
prev = &((*prev)->next);
|
|
|
|
*prev = window->next;
|
|
}
|
|
|
|
free(window);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window title
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowTitle(GLFWwindow handle, const char* title)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
_glfwPlatformSetWindowTitle(window, title);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Get the window size
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwGetWindowSize(GLFWwindow handle, int* width, int* height)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (width != NULL)
|
|
*width = window->width;
|
|
|
|
if (height != NULL)
|
|
*height = window->height;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window size
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowSize(GLFWwindow handle, int width, int height)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (window->iconified)
|
|
{
|
|
// TODO: Figure out if this is an error
|
|
return;
|
|
}
|
|
|
|
// Don't do anything if the window size did not change
|
|
if (width == window->width && height == window->height)
|
|
return;
|
|
|
|
_glfwPlatformSetWindowSize(window, width, height);
|
|
|
|
if (window->mode == GLFW_FULLSCREEN)
|
|
{
|
|
// Refresh window parameters (may have changed due to changed video
|
|
// modes)
|
|
_glfwPlatformRefreshWindowParams();
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Get the window position
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwGetWindowPos(GLFWwindow handle, int* xpos, int* ypos)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (xpos != NULL)
|
|
*xpos = window->positionX;
|
|
|
|
if (ypos != NULL)
|
|
*ypos = window->positionY;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the window position
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowPos(GLFWwindow handle, int xpos, int ypos)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (window->mode == GLFW_FULLSCREEN || window->iconified)
|
|
{
|
|
// TODO: Figure out if this is an error
|
|
return;
|
|
}
|
|
|
|
_glfwPlatformSetWindowPos(window, xpos, ypos);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Window iconification
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwIconifyWindow(GLFWwindow handle)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (window->iconified)
|
|
return;
|
|
|
|
_glfwPlatformIconifyWindow(window);
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Window un-iconification
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwRestoreWindow(GLFWwindow handle)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
if (!window->iconified)
|
|
return;
|
|
|
|
// Restore iconified window
|
|
_glfwPlatformRestoreWindow(window);
|
|
|
|
if (window->mode == GLFW_FULLSCREEN)
|
|
_glfwPlatformRefreshWindowParams();
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Get window parameter
|
|
//========================================================================
|
|
|
|
GLFWAPI int glfwGetWindowParam(GLFWwindow handle, int param)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return 0;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
switch (param)
|
|
{
|
|
case GLFW_ACTIVE:
|
|
return window == _glfwLibrary.activeWindow;
|
|
case GLFW_ICONIFIED:
|
|
return window->iconified;
|
|
case GLFW_ACCELERATED:
|
|
return window->accelerated;
|
|
case GLFW_RED_BITS:
|
|
return window->redBits;
|
|
case GLFW_GREEN_BITS:
|
|
return window->greenBits;
|
|
case GLFW_BLUE_BITS:
|
|
return window->blueBits;
|
|
case GLFW_ALPHA_BITS:
|
|
return window->alphaBits;
|
|
case GLFW_DEPTH_BITS:
|
|
return window->depthBits;
|
|
case GLFW_STENCIL_BITS:
|
|
return window->stencilBits;
|
|
case GLFW_ACCUM_RED_BITS:
|
|
return window->accumRedBits;
|
|
case GLFW_ACCUM_GREEN_BITS:
|
|
return window->accumGreenBits;
|
|
case GLFW_ACCUM_BLUE_BITS:
|
|
return window->accumBlueBits;
|
|
case GLFW_ACCUM_ALPHA_BITS:
|
|
return window->accumAlphaBits;
|
|
case GLFW_AUX_BUFFERS:
|
|
return window->auxBuffers;
|
|
case GLFW_STEREO:
|
|
return window->stereo;
|
|
case GLFW_REFRESH_RATE:
|
|
return window->refreshRate;
|
|
case GLFW_WINDOW_NO_RESIZE:
|
|
return window->windowNoResize;
|
|
case GLFW_FSAA_SAMPLES:
|
|
return window->samples;
|
|
case GLFW_OPENGL_VERSION_MAJOR:
|
|
return window->glMajor;
|
|
case GLFW_OPENGL_VERSION_MINOR:
|
|
return window->glMinor;
|
|
case GLFW_OPENGL_FORWARD_COMPAT:
|
|
return window->glForward;
|
|
case GLFW_OPENGL_DEBUG_CONTEXT:
|
|
return window->glDebug;
|
|
case GLFW_OPENGL_PROFILE:
|
|
return window->glProfile;
|
|
default:
|
|
_glfwSetError(GLFW_INVALID_ENUM, "glfwGetWindowParam: Invalid enum value for 'param' parameter");
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set the user pointer for the specified window
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowUserPointer(GLFWwindow handle, void* pointer)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
window->userPointer = pointer;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Get the user pointer for the specified window
|
|
//========================================================================
|
|
|
|
GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow handle)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return NULL;
|
|
}
|
|
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
|
|
return window->userPointer;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set callback function for window size changes
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowSizeCallback(GLFWwindowsizefun cbfun)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_glfwLibrary.windowSizeCallback = cbfun;
|
|
|
|
// Call the callback function to let the application know the current
|
|
// window size
|
|
if (cbfun)
|
|
{
|
|
_GLFWwindow* window;
|
|
|
|
for (window = _glfwLibrary.windowListHead; window; window = window->next)
|
|
cbfun(window, window->width, window->height);
|
|
}
|
|
}
|
|
|
|
//========================================================================
|
|
// Set callback function for window close events
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowCloseCallback(GLFWwindowclosefun cbfun)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_glfwLibrary.windowCloseCallback = cbfun;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set callback function for window refresh events
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowRefreshCallback(GLFWwindowrefreshfun cbfun)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_glfwLibrary.windowRefreshCallback = cbfun;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set callback function for window focus events
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowFocusCallback(GLFWwindowfocusfun cbfun)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_glfwLibrary.windowFocusCallback = cbfun;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Set callback function for window iconification events
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwSetWindowIconifyCallback(GLFWwindowiconifyfun cbfun)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
_glfwLibrary.windowIconifyCallback = cbfun;
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Poll for new window and input events and close any flagged windows
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwPollEvents(void)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
clearScrollOffsets();
|
|
|
|
_glfwPlatformPollEvents();
|
|
|
|
closeFlaggedWindows();
|
|
}
|
|
|
|
|
|
//========================================================================
|
|
// Wait for new window and input events
|
|
//========================================================================
|
|
|
|
GLFWAPI void glfwWaitEvents(void)
|
|
{
|
|
if (!_glfwInitialized)
|
|
{
|
|
_glfwSetError(GLFW_NOT_INITIALIZED, NULL);
|
|
return;
|
|
}
|
|
|
|
clearScrollOffsets();
|
|
|
|
_glfwPlatformWaitEvents();
|
|
|
|
closeFlaggedWindows();
|
|
}
|
|
|