kopia lustrzana https://github.com/AlexandreRouma/SDRPlusPlus
306 wiersze
12 KiB
C++
306 wiersze
12 KiB
C++
#include <backend.h>
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#include "imgui.h"
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#include "imgui_impl_glfw.h"
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#include "imgui_impl_opengl3.h"
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#include <GLFW/glfw3.h>
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#include <spdlog/spdlog.h>
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#include <utils/opengl_include_code.h>
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#include <version.h>
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#include <core.h>
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#include <filesystem>
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#include <stb_image.h>
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#include <stb_image_resize.h>
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#include <gui/gui.h>
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namespace backend {
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const char* OPENGL_VERSIONS_GLSL[] = {
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"#version 120",
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"#version 300 es",
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"#version 120"
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};
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const int OPENGL_VERSIONS_MAJOR[] = {
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3,
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3,
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2
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};
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const int OPENGL_VERSIONS_MINOR[] = {
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0,
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1,
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1
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};
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const bool OPENGL_VERSIONS_IS_ES[] = {
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false,
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true,
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false
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};
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#define OPENGL_VERSION_COUNT (sizeof(OPENGL_VERSIONS_GLSL) / sizeof(char*))
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bool maximized = false;
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bool fullScreen = false;
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int winHeight;
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int winWidth;
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bool _maximized = maximized;
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int fsWidth, fsHeight, fsPosX, fsPosY;
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int _winWidth, _winHeight;
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GLFWwindow* window;
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GLFWmonitor* monitor;
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static void glfw_error_callback(int error, const char* description) {
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spdlog::error("Glfw Error {0}: {1}", error, description);
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}
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static void maximized_callback(GLFWwindow* window, int n) {
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if (n == GLFW_TRUE) {
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maximized = true;
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}
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else {
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maximized = false;
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}
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}
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int init(std::string resDir) {
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// Load config
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core::configManager.acquire();
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winWidth = core::configManager.conf["windowSize"]["w"];
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winHeight = core::configManager.conf["windowSize"]["h"];
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maximized = core::configManager.conf["maximized"];
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fullScreen = core::configManager.conf["fullscreen"];
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core::configManager.release();
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// Setup window
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glfwSetErrorCallback(glfw_error_callback);
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if (!glfwInit()) {
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return 1;
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}
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#ifdef __APPLE__
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// GL 3.2 + GLSL 150
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const char* glsl_version = "#version 150";
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Required on Mac
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// Create window with graphics context
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monitor = glfwGetPrimaryMonitor();
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window = glfwCreateWindow(winWidth, winHeight, "SDR++ v" VERSION_STR " (Built at " __TIME__ ", " __DATE__ ")", NULL, NULL);
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if (window == NULL)
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return 1;
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glfwMakeContextCurrent(window);
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#else
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const char* glsl_version = "#version 120";
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monitor = NULL;
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for (int i = 0; i < OPENGL_VERSION_COUNT; i++) {
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glsl_version = OPENGL_VERSIONS_GLSL[i];
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glfwWindowHint(GLFW_CLIENT_API, OPENGL_VERSIONS_IS_ES[i] ? GLFW_OPENGL_ES_API : GLFW_OPENGL_API);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, OPENGL_VERSIONS_MAJOR[i]);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, OPENGL_VERSIONS_MINOR[i]);
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// Create window with graphics context
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monitor = glfwGetPrimaryMonitor();
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window = glfwCreateWindow(winWidth, winHeight, "SDR++ v" VERSION_STR " (Built at " __TIME__ ", " __DATE__ ")", NULL, NULL);
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if (window == NULL) {
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spdlog::info("OpenGL {0}.{1} {2}was not supported", OPENGL_VERSIONS_MAJOR[i], OPENGL_VERSIONS_MINOR[i], OPENGL_VERSIONS_IS_ES[i] ? "ES " : "");
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continue;
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}
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spdlog::info("Using OpenGL {0}.{1}{2}", OPENGL_VERSIONS_MAJOR[i], OPENGL_VERSIONS_MINOR[i], OPENGL_VERSIONS_IS_ES[i] ? " ES" : "");
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glfwMakeContextCurrent(window);
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break;
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}
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#endif
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// Load app icon
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if (!std::filesystem::is_regular_file(resDir + "/icons/sdrpp.png")) {
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spdlog::error("Icon file '{0}' doesn't exist!", resDir + "/icons/sdrpp.png");
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return 1;
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}
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GLFWimage icons[10];
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icons[0].pixels = stbi_load(((std::string)(resDir + "/icons/sdrpp.png")).c_str(), &icons[0].width, &icons[0].height, 0, 4);
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icons[1].pixels = (unsigned char*)malloc(16 * 16 * 4);
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icons[1].width = icons[1].height = 16;
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icons[2].pixels = (unsigned char*)malloc(24 * 24 * 4);
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icons[2].width = icons[2].height = 24;
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icons[3].pixels = (unsigned char*)malloc(32 * 32 * 4);
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icons[3].width = icons[3].height = 32;
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icons[4].pixels = (unsigned char*)malloc(48 * 48 * 4);
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icons[4].width = icons[4].height = 48;
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icons[5].pixels = (unsigned char*)malloc(64 * 64 * 4);
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icons[5].width = icons[5].height = 64;
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icons[6].pixels = (unsigned char*)malloc(96 * 96 * 4);
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icons[6].width = icons[6].height = 96;
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icons[7].pixels = (unsigned char*)malloc(128 * 128 * 4);
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icons[7].width = icons[7].height = 128;
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icons[8].pixels = (unsigned char*)malloc(196 * 196 * 4);
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icons[8].width = icons[8].height = 196;
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icons[9].pixels = (unsigned char*)malloc(256 * 256 * 4);
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icons[9].width = icons[9].height = 256;
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[1].pixels, 16, 16, 16 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[2].pixels, 24, 24, 24 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[3].pixels, 32, 32, 32 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[4].pixels, 48, 48, 48 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[5].pixels, 64, 64, 64 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[6].pixels, 96, 96, 96 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[7].pixels, 128, 128, 128 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[8].pixels, 196, 196, 196 * 4, 4);
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stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[9].pixels, 256, 256, 256 * 4, 4);
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glfwSetWindowIcon(window, 10, icons);
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stbi_image_free(icons[0].pixels);
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for (int i = 1; i < 10; i++) {
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free(icons[i].pixels);
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}
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// Add callback for max/min if GLFW supports it
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#if (GLFW_VERSION_MAJOR == 3) && (GLFW_VERSION_MINOR >= 3)
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if (maximized) {
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glfwMaximizeWindow(window);
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}
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glfwSetWindowMaximizeCallback(window, maximized_callback);
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#endif
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// Setup Dear ImGui context
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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(void)io;
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io.IniFilename = NULL;
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// Setup Platform/Renderer bindings
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ImGui_ImplGlfw_InitForOpenGL(window, true);
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if (!ImGui_ImplOpenGL3_Init(glsl_version)) {
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// If init fail, try to fall back on GLSL 1.2
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spdlog::warn("Could not init using OpenGL with normal GLSL version, falling back to GLSL 1.2");
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if (!ImGui_ImplOpenGL3_Init("#version 120")) {
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spdlog::error("Failed to initialize OpenGL with GLSL 1.2");
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return -1;
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}
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}
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// Set window size and fullscreen state
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glfwGetWindowSize(window, &_winWidth, &_winHeight);
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if (fullScreen) {
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spdlog::info("Fullscreen: ON");
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fsWidth = _winWidth;
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fsHeight = _winHeight;
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glfwGetWindowPos(window, &fsPosX, &fsPosY);
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const GLFWvidmode* mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
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glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, 0);
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}
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// Everything went according to plan
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return 0;
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}
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void beginFrame() {
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// Start the Dear ImGui frame
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ImGui_ImplOpenGL3_NewFrame();
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ImGui_ImplGlfw_NewFrame();
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ImGui::NewFrame();
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}
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void render(bool vsync) {
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// Rendering
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ImGui::Render();
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int display_w, display_h;
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glfwGetFramebufferSize(window, &display_w, &display_h);
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glViewport(0, 0, display_w, display_h);
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glClearColor(gui::themeManager.clearColor.x, gui::themeManager.clearColor.y, gui::themeManager.clearColor.z, gui::themeManager.clearColor.w);
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glClear(GL_COLOR_BUFFER_BIT);
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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glfwSwapInterval(vsync);
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glfwSwapBuffers(window);
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}
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void getMouseScreenPos(double& x, double& y) {
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glfwGetCursorPos(window, &x, &y);
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}
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void setMouseScreenPos(double x, double y) {
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// Tell GLFW to move the cursor and then manually fire the event
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glfwSetCursorPos(window, x, y);
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ImGui_ImplGlfw_CursorPosCallback(window, x, y);
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}
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int renderLoop() {
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// Main loop
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while (!glfwWindowShouldClose(window)) {
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glfwPollEvents();
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beginFrame();
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if (_maximized != maximized) {
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_maximized = maximized;
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core::configManager.acquire();
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core::configManager.conf["maximized"] = _maximized;
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if (!maximized) {
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glfwSetWindowSize(window, core::configManager.conf["windowSize"]["w"], core::configManager.conf["windowSize"]["h"]);
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}
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core::configManager.release(true);
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}
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glfwGetWindowSize(window, &_winWidth, &_winHeight);
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if (ImGui::IsKeyPressed(GLFW_KEY_F11)) {
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fullScreen = !fullScreen;
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if (fullScreen) {
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spdlog::info("Fullscreen: ON");
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fsWidth = _winWidth;
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fsHeight = _winHeight;
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glfwGetWindowPos(window, &fsPosX, &fsPosY);
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const GLFWvidmode* mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
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glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, 0);
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core::configManager.acquire();
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core::configManager.conf["fullscreen"] = true;
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core::configManager.release();
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}
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else {
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spdlog::info("Fullscreen: OFF");
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glfwSetWindowMonitor(window, nullptr, fsPosX, fsPosY, fsWidth, fsHeight, 0);
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core::configManager.acquire();
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core::configManager.conf["fullscreen"] = false;
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core::configManager.release();
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}
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}
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if ((_winWidth != winWidth || _winHeight != winHeight) && !maximized && _winWidth > 0 && _winHeight > 0) {
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winWidth = _winWidth;
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winHeight = _winHeight;
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core::configManager.acquire();
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core::configManager.conf["windowSize"]["w"] = winWidth;
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core::configManager.conf["windowSize"]["h"] = winHeight;
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core::configManager.release(true);
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}
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if (winWidth > 0 && winHeight > 0) {
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ImGui::SetNextWindowPos(ImVec2(0, 0));
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ImGui::SetNextWindowSize(ImVec2(_winWidth, _winHeight));
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gui::mainWindow.draw();
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}
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render();
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}
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return 0;
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}
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int end() {
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// Cleanup
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ImGui_ImplOpenGL3_Shutdown();
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ImGui_ImplGlfw_Shutdown();
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ImGui::DestroyContext();
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glfwDestroyWindow(window);
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glfwTerminate();
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return 0; // TODO: Int really needed?
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}
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}
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