mirror of
https://github.com/AlexandreRouma/SDRPlusPlus.git
synced 2024-11-08 19:57:35 +01:00
306 lines
12 KiB
C++
306 lines
12 KiB
C++
#include <backend.h>
|
|
#include "imgui.h"
|
|
#include "imgui_impl_glfw.h"
|
|
#include "imgui_impl_opengl3.h"
|
|
#include <GLFW/glfw3.h>
|
|
#include <spdlog/spdlog.h>
|
|
#include <utils/opengl_include_code.h>
|
|
#include <version.h>
|
|
#include <core.h>
|
|
#include <filesystem>
|
|
#include <stb_image.h>
|
|
#include <stb_image_resize.h>
|
|
#include <gui/gui.h>
|
|
|
|
namespace backend {
|
|
const char* OPENGL_VERSIONS_GLSL[] = {
|
|
"#version 120",
|
|
"#version 300 es",
|
|
"#version 120"
|
|
};
|
|
|
|
const int OPENGL_VERSIONS_MAJOR[] = {
|
|
3,
|
|
3,
|
|
2
|
|
};
|
|
|
|
const int OPENGL_VERSIONS_MINOR[] = {
|
|
0,
|
|
1,
|
|
1
|
|
};
|
|
|
|
const bool OPENGL_VERSIONS_IS_ES[] = {
|
|
false,
|
|
true,
|
|
false
|
|
};
|
|
|
|
#define OPENGL_VERSION_COUNT (sizeof(OPENGL_VERSIONS_GLSL) / sizeof(char*))
|
|
|
|
bool maximized = false;
|
|
bool fullScreen = false;
|
|
int winHeight;
|
|
int winWidth;
|
|
bool _maximized = maximized;
|
|
int fsWidth, fsHeight, fsPosX, fsPosY;
|
|
int _winWidth, _winHeight;
|
|
GLFWwindow* window;
|
|
GLFWmonitor* monitor;
|
|
|
|
static void glfw_error_callback(int error, const char* description) {
|
|
spdlog::error("Glfw Error {0}: {1}", error, description);
|
|
}
|
|
|
|
static void maximized_callback(GLFWwindow* window, int n) {
|
|
if (n == GLFW_TRUE) {
|
|
maximized = true;
|
|
}
|
|
else {
|
|
maximized = false;
|
|
}
|
|
}
|
|
|
|
int init(std::string resDir) {
|
|
// Load config
|
|
core::configManager.acquire();
|
|
winWidth = core::configManager.conf["windowSize"]["w"];
|
|
winHeight = core::configManager.conf["windowSize"]["h"];
|
|
maximized = core::configManager.conf["maximized"];
|
|
fullScreen = core::configManager.conf["fullscreen"];
|
|
core::configManager.release();
|
|
|
|
// Setup window
|
|
glfwSetErrorCallback(glfw_error_callback);
|
|
if (!glfwInit()) {
|
|
return 1;
|
|
}
|
|
|
|
#ifdef __APPLE__
|
|
// GL 3.2 + GLSL 150
|
|
const char* glsl_version = "#version 150";
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
|
|
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // 3.2+ only
|
|
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); // Required on Mac
|
|
|
|
// Create window with graphics context
|
|
monitor = glfwGetPrimaryMonitor();
|
|
window = glfwCreateWindow(winWidth, winHeight, "SDR++ v" VERSION_STR " (Built at " __TIME__ ", " __DATE__ ")", NULL, NULL);
|
|
if (window == NULL)
|
|
return 1;
|
|
glfwMakeContextCurrent(window);
|
|
#else
|
|
const char* glsl_version = "#version 120";
|
|
monitor = NULL;
|
|
for (int i = 0; i < OPENGL_VERSION_COUNT; i++) {
|
|
glsl_version = OPENGL_VERSIONS_GLSL[i];
|
|
glfwWindowHint(GLFW_CLIENT_API, OPENGL_VERSIONS_IS_ES[i] ? GLFW_OPENGL_ES_API : GLFW_OPENGL_API);
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, OPENGL_VERSIONS_MAJOR[i]);
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, OPENGL_VERSIONS_MINOR[i]);
|
|
|
|
// Create window with graphics context
|
|
monitor = glfwGetPrimaryMonitor();
|
|
window = glfwCreateWindow(winWidth, winHeight, "SDR++ v" VERSION_STR " (Built at " __TIME__ ", " __DATE__ ")", NULL, NULL);
|
|
if (window == NULL) {
|
|
spdlog::info("OpenGL {0}.{1} {2}was not supported", OPENGL_VERSIONS_MAJOR[i], OPENGL_VERSIONS_MINOR[i], OPENGL_VERSIONS_IS_ES[i] ? "ES " : "");
|
|
continue;
|
|
}
|
|
spdlog::info("Using OpenGL {0}.{1}{2}", OPENGL_VERSIONS_MAJOR[i], OPENGL_VERSIONS_MINOR[i], OPENGL_VERSIONS_IS_ES[i] ? " ES" : "");
|
|
glfwMakeContextCurrent(window);
|
|
break;
|
|
}
|
|
|
|
#endif
|
|
|
|
// Add callback for max/min if GLFW supports it
|
|
#if (GLFW_VERSION_MAJOR == 3) && (GLFW_VERSION_MINOR >= 3)
|
|
if (maximized) {
|
|
glfwMaximizeWindow(window);
|
|
}
|
|
|
|
glfwSetWindowMaximizeCallback(window, maximized_callback);
|
|
#endif
|
|
|
|
// Load app icon
|
|
if (!std::filesystem::is_regular_file(resDir + "/icons/sdrpp.png")) {
|
|
spdlog::error("Icon file '{0}' doesn't exist!", resDir + "/icons/sdrpp.png");
|
|
return 1;
|
|
}
|
|
|
|
GLFWimage icons[10];
|
|
icons[0].pixels = stbi_load(((std::string)(resDir + "/icons/sdrpp.png")).c_str(), &icons[0].width, &icons[0].height, 0, 4);
|
|
icons[1].pixels = (unsigned char*)malloc(16 * 16 * 4);
|
|
icons[1].width = icons[1].height = 16;
|
|
icons[2].pixels = (unsigned char*)malloc(24 * 24 * 4);
|
|
icons[2].width = icons[2].height = 24;
|
|
icons[3].pixels = (unsigned char*)malloc(32 * 32 * 4);
|
|
icons[3].width = icons[3].height = 32;
|
|
icons[4].pixels = (unsigned char*)malloc(48 * 48 * 4);
|
|
icons[4].width = icons[4].height = 48;
|
|
icons[5].pixels = (unsigned char*)malloc(64 * 64 * 4);
|
|
icons[5].width = icons[5].height = 64;
|
|
icons[6].pixels = (unsigned char*)malloc(96 * 96 * 4);
|
|
icons[6].width = icons[6].height = 96;
|
|
icons[7].pixels = (unsigned char*)malloc(128 * 128 * 4);
|
|
icons[7].width = icons[7].height = 128;
|
|
icons[8].pixels = (unsigned char*)malloc(196 * 196 * 4);
|
|
icons[8].width = icons[8].height = 196;
|
|
icons[9].pixels = (unsigned char*)malloc(256 * 256 * 4);
|
|
icons[9].width = icons[9].height = 256;
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[1].pixels, 16, 16, 16 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[2].pixels, 24, 24, 24 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[3].pixels, 32, 32, 32 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[4].pixels, 48, 48, 48 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[5].pixels, 64, 64, 64 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[6].pixels, 96, 96, 96 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[7].pixels, 128, 128, 128 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[8].pixels, 196, 196, 196 * 4, 4);
|
|
stbir_resize_uint8(icons[0].pixels, icons[0].width, icons[0].height, icons[0].width * 4, icons[9].pixels, 256, 256, 256 * 4, 4);
|
|
glfwSetWindowIcon(window, 10, icons);
|
|
stbi_image_free(icons[0].pixels);
|
|
for (int i = 1; i < 10; i++) {
|
|
free(icons[i].pixels);
|
|
}
|
|
|
|
// Setup Dear ImGui context
|
|
IMGUI_CHECKVERSION();
|
|
ImGui::CreateContext();
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
(void)io;
|
|
io.IniFilename = NULL;
|
|
|
|
// Setup Platform/Renderer bindings
|
|
ImGui_ImplGlfw_InitForOpenGL(window, true);
|
|
|
|
if (!ImGui_ImplOpenGL3_Init(glsl_version)) {
|
|
// If init fail, try to fall back on GLSL 1.2
|
|
spdlog::warn("Could not init using OpenGL with normal GLSL version, falling back to GLSL 1.2");
|
|
if (!ImGui_ImplOpenGL3_Init("#version 120")) {
|
|
spdlog::error("Failed to initialize OpenGL with GLSL 1.2");
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
// Set window size and fullscreen state
|
|
glfwGetWindowSize(window, &_winWidth, &_winHeight);
|
|
if (fullScreen) {
|
|
spdlog::info("Fullscreen: ON");
|
|
fsWidth = _winWidth;
|
|
fsHeight = _winHeight;
|
|
glfwGetWindowPos(window, &fsPosX, &fsPosY);
|
|
const GLFWvidmode* mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
|
|
glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, 0);
|
|
}
|
|
|
|
// Everything went according to plan
|
|
return 0;
|
|
}
|
|
|
|
void beginFrame() {
|
|
// Start the Dear ImGui frame
|
|
ImGui_ImplOpenGL3_NewFrame();
|
|
ImGui_ImplGlfw_NewFrame();
|
|
ImGui::NewFrame();
|
|
}
|
|
|
|
void render(bool vsync) {
|
|
// Rendering
|
|
ImGui::Render();
|
|
int display_w, display_h;
|
|
glfwGetFramebufferSize(window, &display_w, &display_h);
|
|
glViewport(0, 0, display_w, display_h);
|
|
glClearColor(gui::themeManager.clearColor.x, gui::themeManager.clearColor.y, gui::themeManager.clearColor.z, gui::themeManager.clearColor.w);
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
|
|
|
|
glfwSwapInterval(vsync);
|
|
glfwSwapBuffers(window);
|
|
}
|
|
|
|
void getMouseScreenPos(double& x, double& y) {
|
|
glfwGetCursorPos(window, &x, &y);
|
|
}
|
|
|
|
void setMouseScreenPos(double x, double y) {
|
|
// Tell GLFW to move the cursor and then manually fire the event
|
|
glfwSetCursorPos(window, x, y);
|
|
ImGui_ImplGlfw_CursorPosCallback(window, x, y);
|
|
}
|
|
|
|
int renderLoop() {
|
|
// Main loop
|
|
while (!glfwWindowShouldClose(window)) {
|
|
glfwPollEvents();
|
|
|
|
beginFrame();
|
|
|
|
if (_maximized != maximized) {
|
|
_maximized = maximized;
|
|
core::configManager.acquire();
|
|
core::configManager.conf["maximized"] = _maximized;
|
|
if (!maximized) {
|
|
glfwSetWindowSize(window, core::configManager.conf["windowSize"]["w"], core::configManager.conf["windowSize"]["h"]);
|
|
}
|
|
core::configManager.release(true);
|
|
}
|
|
|
|
glfwGetWindowSize(window, &_winWidth, &_winHeight);
|
|
|
|
if (ImGui::IsKeyPressed(GLFW_KEY_F11)) {
|
|
fullScreen = !fullScreen;
|
|
if (fullScreen) {
|
|
spdlog::info("Fullscreen: ON");
|
|
fsWidth = _winWidth;
|
|
fsHeight = _winHeight;
|
|
glfwGetWindowPos(window, &fsPosX, &fsPosY);
|
|
const GLFWvidmode* mode = glfwGetVideoMode(glfwGetPrimaryMonitor());
|
|
glfwSetWindowMonitor(window, monitor, 0, 0, mode->width, mode->height, 0);
|
|
core::configManager.acquire();
|
|
core::configManager.conf["fullscreen"] = true;
|
|
core::configManager.release();
|
|
}
|
|
else {
|
|
spdlog::info("Fullscreen: OFF");
|
|
glfwSetWindowMonitor(window, nullptr, fsPosX, fsPosY, fsWidth, fsHeight, 0);
|
|
core::configManager.acquire();
|
|
core::configManager.conf["fullscreen"] = false;
|
|
core::configManager.release();
|
|
}
|
|
}
|
|
|
|
if ((_winWidth != winWidth || _winHeight != winHeight) && !maximized && _winWidth > 0 && _winHeight > 0) {
|
|
winWidth = _winWidth;
|
|
winHeight = _winHeight;
|
|
core::configManager.acquire();
|
|
core::configManager.conf["windowSize"]["w"] = winWidth;
|
|
core::configManager.conf["windowSize"]["h"] = winHeight;
|
|
core::configManager.release(true);
|
|
}
|
|
|
|
if (winWidth > 0 && winHeight > 0) {
|
|
ImGui::SetNextWindowPos(ImVec2(0, 0));
|
|
ImGui::SetNextWindowSize(ImVec2(_winWidth, _winHeight));
|
|
gui::mainWindow.draw();
|
|
}
|
|
|
|
render();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int end() {
|
|
// Cleanup
|
|
ImGui_ImplOpenGL3_Shutdown();
|
|
ImGui_ImplGlfw_Shutdown();
|
|
ImGui::DestroyContext();
|
|
|
|
glfwDestroyWindow(window);
|
|
glfwTerminate();
|
|
|
|
return 0; // TODO: Int really needed?
|
|
}
|
|
}
|