323 lines
8.8 KiB
C++
323 lines
8.8 KiB
C++
#include <iostream>
|
|
#include "Window.h"
|
|
#include "Events.h"
|
|
#include "../graphics/ImageData.h"
|
|
|
|
#include <GL/glew.h>
|
|
#include <GLFW/glfw3.h>
|
|
|
|
using glm::vec4;
|
|
using std::cout;
|
|
using std::cerr;
|
|
using std::endl;
|
|
|
|
GLFWwindow* Window::window = nullptr;
|
|
DisplaySettings* Window::settings = nullptr;
|
|
std::stack<vec4> Window::scissorStack;
|
|
vec4 Window::scissorArea;
|
|
uint Window::width = 0;
|
|
uint Window::height = 0;
|
|
int Window::posX = 0;
|
|
int Window::posY = 0;
|
|
|
|
void cursor_position_callback(GLFWwindow*, double xpos, double ypos) {
|
|
Events::setPosition(xpos, ypos);
|
|
}
|
|
|
|
void mouse_button_callback(GLFWwindow*, int button, int action, int) {
|
|
Events::setButton(button, action == GLFW_PRESS);
|
|
}
|
|
|
|
void key_callback(GLFWwindow*, int key, int scancode, int action, int /*mode*/) {
|
|
if (key == GLFW_KEY_UNKNOWN) return;
|
|
if (action == GLFW_PRESS) {
|
|
Events::setKey(key, true);
|
|
Events::pressedKeys.push_back(key);
|
|
}
|
|
else if (action == GLFW_RELEASE) {
|
|
Events::setKey(key, false);
|
|
}
|
|
else if (action == GLFW_REPEAT) {
|
|
Events::pressedKeys.push_back(key);
|
|
}
|
|
}
|
|
|
|
void scroll_callback(GLFWwindow*, double xoffset, double yoffset) {
|
|
Events::scroll += yoffset;
|
|
}
|
|
|
|
bool Window::isMaximized() {
|
|
return glfwGetWindowAttrib(window, GLFW_MAXIMIZED);
|
|
}
|
|
|
|
bool Window::isIconified() {
|
|
return glfwGetWindowAttrib(window, GLFW_ICONIFIED);
|
|
}
|
|
|
|
bool Window::isFocused()
|
|
{
|
|
return glfwGetWindowAttrib(window, GLFW_FOCUSED);
|
|
}
|
|
|
|
void window_size_callback(GLFWwindow*, int width, int height) {
|
|
if (width && height) {
|
|
if (Window::isFocused()) {
|
|
glViewport(0, 0, width, height);
|
|
Window::width = width;
|
|
Window::height = height;
|
|
}
|
|
|
|
if (!Window::isFullscreen() && !Window::isMaximized()) {
|
|
Window::getSettings()->width = width;
|
|
Window::getSettings()->height = height;
|
|
}
|
|
}
|
|
Window::resetScissor();
|
|
}
|
|
|
|
void character_callback(GLFWwindow* window, unsigned int codepoint){
|
|
Events::codepoints.push_back(codepoint);
|
|
}
|
|
|
|
const char* glfwErrorName(int error) {
|
|
switch (error) {
|
|
case GLFW_NO_ERROR: return "no error";
|
|
case GLFW_NOT_INITIALIZED: return "not initialized";
|
|
case GLFW_NO_CURRENT_CONTEXT: return "no current context";
|
|
case GLFW_INVALID_ENUM: return "invalid enum";
|
|
case GLFW_INVALID_VALUE: return "invalid value";
|
|
case GLFW_OUT_OF_MEMORY: return "out of memory";
|
|
case GLFW_API_UNAVAILABLE: return "api unavailable";
|
|
case GLFW_VERSION_UNAVAILABLE: return "version unavailable";
|
|
case GLFW_PLATFORM_ERROR: return "platform error";
|
|
case GLFW_FORMAT_UNAVAILABLE: return "format unavailable";
|
|
case GLFW_NO_WINDOW_CONTEXT: return "no window context";
|
|
default: return "unknown error";
|
|
}
|
|
}
|
|
|
|
void error_callback(int error, const char* description) {
|
|
cerr << "GLFW error [0x" << std::hex << error << "]: ";
|
|
cerr << glfwErrorName(error) << endl;
|
|
if (description) {
|
|
cerr << description << endl;
|
|
}
|
|
}
|
|
|
|
int Window::initialize(DisplaySettings& settings){
|
|
Window::settings = &settings;
|
|
Window::width = settings.width;
|
|
Window::height = settings.height;
|
|
|
|
glfwSetErrorCallback(error_callback);
|
|
if (glfwInit() == GLFW_FALSE) {
|
|
cerr << "Failed to initialize GLFW" << endl;
|
|
return -1;
|
|
}
|
|
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
|
|
#ifdef __APPLE__
|
|
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
|
|
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
|
|
glfwWindowHint(GLFW_COCOA_RETINA_FRAMEBUFFER, GLFW_FALSE);
|
|
#else
|
|
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_ANY_PROFILE);
|
|
#endif
|
|
glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);
|
|
glfwWindowHint(GLFW_SAMPLES, settings.samples);
|
|
|
|
window = glfwCreateWindow(width, height, settings.title.c_str(), nullptr, nullptr);
|
|
if (window == nullptr){
|
|
cerr << "Failed to create GLFW Window" << endl;
|
|
glfwTerminate();
|
|
return -1;
|
|
}
|
|
glfwMakeContextCurrent(window);
|
|
|
|
glewExperimental = GL_TRUE;
|
|
GLenum glewErr = glewInit();
|
|
if (glewErr != GLEW_OK){
|
|
cerr << "Failed to initialize GLEW: " << std::endl;
|
|
cerr << glewGetErrorString(glewErr) << std::endl;
|
|
return -1;
|
|
}
|
|
|
|
glViewport(0,0, width, height);
|
|
glClearColor(0.0f,0.0f,0.0f, 1);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
|
|
glfwSetKeyCallback(window, key_callback);
|
|
glfwSetMouseButtonCallback(window, mouse_button_callback);
|
|
glfwSetCursorPosCallback(window, cursor_position_callback);
|
|
glfwSetWindowSizeCallback(window, window_size_callback);
|
|
glfwSetCharCallback(window, character_callback);
|
|
glfwSetScrollCallback(window, scroll_callback);
|
|
if (settings.fullscreen) {
|
|
GLFWmonitor* monitor = glfwGetPrimaryMonitor();
|
|
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
|
|
glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, GLFW_DONT_CARE);
|
|
}
|
|
glfwSwapInterval(settings.swapInterval);
|
|
const GLubyte* vendor = glGetString(GL_VENDOR);
|
|
const GLubyte* renderer = glGetString(GL_RENDERER);
|
|
cout << "GL Vendor: " << (char*)vendor << endl;
|
|
cout << "GL Renderer: " << (char*)renderer << endl;
|
|
return 0;
|
|
}
|
|
|
|
void Window::clear() {
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
}
|
|
|
|
void Window::clearDepth() {
|
|
glClear(GL_DEPTH_BUFFER_BIT);
|
|
}
|
|
|
|
void Window::setBgColor(glm::vec3 color) {
|
|
glClearColor(color.r, color.g, color.b, 1.0f);
|
|
}
|
|
|
|
void Window::viewport(int x, int y, int width, int height){
|
|
glViewport(x, y, width, height);
|
|
}
|
|
|
|
void Window::setCursorMode(int mode){
|
|
glfwSetInputMode(window, GLFW_CURSOR, mode);
|
|
}
|
|
|
|
void Window::resetScissor() {
|
|
scissorArea = vec4(0.0f, 0.0f, width, height);
|
|
scissorStack = std::stack<vec4>();
|
|
glDisable(GL_SCISSOR_TEST);
|
|
}
|
|
|
|
void Window::pushScissor(vec4 area) {
|
|
if (scissorStack.empty()) {
|
|
glEnable(GL_SCISSOR_TEST);
|
|
}
|
|
scissorStack.push(scissorArea);
|
|
|
|
area.z += area.x;
|
|
area.w += area.y;
|
|
|
|
area.x = fmax(area.x, scissorArea.x);
|
|
area.y = fmax(area.y, scissorArea.y);
|
|
|
|
area.z = fmin(area.z, scissorArea.z);
|
|
area.w = fmin(area.w, scissorArea.w);
|
|
|
|
if (area.z < 0.0f || area.w < 0.0f) {
|
|
glScissor(0, 0, 0, 0);
|
|
} else {
|
|
glScissor(area.x, Window::height-area.w,
|
|
std::max(0, int(area.z-area.x)),
|
|
std::max(0, int(area.w-area.y)));
|
|
}
|
|
scissorArea = area;
|
|
}
|
|
|
|
void Window::popScissor() {
|
|
if (scissorStack.empty()) {
|
|
std::cerr << "warning: extra Window::popScissor call" << std::endl;
|
|
return;
|
|
}
|
|
vec4 area = scissorStack.top();
|
|
scissorStack.pop();
|
|
if (area.z < 0.0f || area.w < 0.0f) {
|
|
glScissor(0, 0, 0, 0);
|
|
} else {
|
|
glScissor(area.x, Window::height-area.w,
|
|
std::max(0, int(area.z-area.x)),
|
|
std::max(0, int(area.w-area.y)));
|
|
}
|
|
if (scissorStack.empty()) {
|
|
glDisable(GL_SCISSOR_TEST);
|
|
}
|
|
scissorArea = area;
|
|
}
|
|
|
|
void Window::terminate(){
|
|
glfwTerminate();
|
|
}
|
|
|
|
bool Window::isShouldClose(){
|
|
return glfwWindowShouldClose(window);
|
|
}
|
|
|
|
void Window::setShouldClose(bool flag){
|
|
glfwSetWindowShouldClose(window, flag);
|
|
}
|
|
|
|
void Window::swapInterval(int interval){
|
|
glfwSwapInterval(interval);
|
|
}
|
|
|
|
void Window::toggleFullscreen(){
|
|
settings->fullscreen = !settings->fullscreen;
|
|
|
|
GLFWmonitor* monitor = glfwGetPrimaryMonitor();
|
|
const GLFWvidmode* mode = glfwGetVideoMode(monitor);
|
|
|
|
if (Events::_cursor_locked) Events::toggleCursor();
|
|
|
|
if (settings->fullscreen) {
|
|
glfwGetWindowPos(window, &posX, &posY);
|
|
glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, GLFW_DONT_CARE);
|
|
}
|
|
else {
|
|
glfwSetWindowMonitor(window, nullptr, posX, posY, settings->width, settings->height, GLFW_DONT_CARE);
|
|
glfwSetWindowAttrib(window, GLFW_MAXIMIZED, GLFW_FALSE);
|
|
}
|
|
|
|
double xPos, yPos;
|
|
glfwGetCursorPos(window, &xPos, &yPos);
|
|
Events::setPosition(xPos, yPos);
|
|
}
|
|
|
|
bool Window::isFullscreen() {
|
|
return settings->fullscreen;
|
|
}
|
|
|
|
void Window::swapBuffers(){
|
|
glfwSwapBuffers(window);
|
|
Window::resetScissor();
|
|
}
|
|
|
|
double Window::time() {
|
|
return glfwGetTime();
|
|
}
|
|
|
|
DisplaySettings* Window::getSettings() {
|
|
return settings;
|
|
}
|
|
|
|
ImageData* Window::takeScreenshot() {
|
|
ubyte* data = new ubyte[width * height * 3];
|
|
glPixelStorei(GL_PACK_ALIGNMENT, 1);
|
|
glReadPixels(0, 0, width, height, GL_RGB, GL_UNSIGNED_BYTE, data);
|
|
return new ImageData(ImageFormat::rgb888, width, height, data);
|
|
}
|
|
|
|
const char* Window::getClipboardText() {
|
|
return glfwGetClipboardString(window);
|
|
}
|
|
|
|
bool Window::tryToMaximize(GLFWwindow* window, GLFWmonitor* monitor) {
|
|
glm::ivec4 windowFrame(0);
|
|
glm::ivec4 workArea(0);
|
|
glfwGetWindowFrameSize(window, &windowFrame.x, &windowFrame.y, &windowFrame.z, &windowFrame.w);
|
|
glfwGetMonitorWorkarea(monitor, &workArea.x, &workArea.y, &workArea.z, &workArea.w);
|
|
if (Window::width > (uint)workArea.z) Window::width = (uint)workArea.z;
|
|
if (Window::height > (uint)workArea.w) Window::height = (uint)workArea.w;
|
|
if (Window::width >= (uint)(workArea.z - (windowFrame.x + windowFrame.z)) &&
|
|
Window::height >= (uint)(workArea.w - (windowFrame.y + windowFrame.w))) {
|
|
glfwMaximizeWindow(window);
|
|
return true;
|
|
}
|
|
glfwSetWindowSize(window, Window::width, Window::height);
|
|
glfwSetWindowPos(window, workArea.x + (workArea.z - Window::width) / 2,
|
|
workArea.y + (workArea.w - Window::height) / 2 + windowFrame.y / 2);
|
|
return false;
|
|
} |