131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
#include <cstdlib>
|
|
#include <thread>
|
|
#include <chrono>
|
|
#include <atomic>
|
|
#include <mutex>
|
|
|
|
#include <GLFW/glfw3.h>
|
|
|
|
#include <imgui.h>
|
|
#include <imgui_impl_glfw.h>
|
|
#include <imgui_impl_opengl3.h>
|
|
|
|
static std::atomic<bool> terminate_dsp;
|
|
static std::mutex waterfall_data_mutex;
|
|
static int waterfall_width = 1600;
|
|
static int waterfall_height = 700;
|
|
static unsigned int waterfall_data[1600*700];
|
|
|
|
static void dsp_thread() {
|
|
using namespace std::chrono_literals;
|
|
|
|
int t = 0;
|
|
while(!terminate_dsp) {
|
|
t++;
|
|
{
|
|
std::lock_guard<std::mutex> guard(waterfall_data_mutex);
|
|
for(int y=0;y<waterfall_height;y++)
|
|
for(int x=0;x<waterfall_width;x++)
|
|
waterfall_data[y*waterfall_width+x] = (x+y+t) | 0xff000000;
|
|
}
|
|
std::this_thread::sleep_for(20ms);
|
|
};
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
if (!glfwInit())
|
|
return 1;
|
|
std::atexit(glfwTerminate);
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
|
|
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
|
|
static GLFWwindow* window = glfwCreateWindow(1900, 720, "microsa", nullptr, nullptr);
|
|
if (window == nullptr) {
|
|
return 1;
|
|
}
|
|
static auto DestroyWindow = []() {
|
|
glfwDestroyWindow(window);
|
|
};
|
|
std::atexit(DestroyWindow);
|
|
glfwMakeContextCurrent(window);
|
|
glfwSwapInterval(1);
|
|
|
|
IMGUI_CHECKVERSION();
|
|
ImGui::CreateContext();
|
|
static auto ImGuiDestroyContext = []() {
|
|
ImGui::DestroyContext();
|
|
};
|
|
std::atexit(ImGuiDestroyContext);
|
|
ImGuiIO& io = ImGui::GetIO();
|
|
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard;
|
|
ImGui::StyleColorsDark();
|
|
ImGui_ImplGlfw_InitForOpenGL(window, true);
|
|
std::atexit(ImGui_ImplGlfw_Shutdown);
|
|
ImGui_ImplOpenGL3_Init("#version 130");
|
|
std::atexit(ImGui_ImplOpenGL3_Shutdown);
|
|
|
|
GLuint waterfall;
|
|
glGenTextures(1, &waterfall);
|
|
glBindTexture(GL_TEXTURE_2D, waterfall);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
|
|
terminate_dsp = false;
|
|
static std::thread dsp_thread_h = std::thread(dsp_thread);
|
|
static auto TerminateDSP = []() {
|
|
terminate_dsp = true;
|
|
dsp_thread_h.join();
|
|
};
|
|
std::atexit(TerminateDSP);
|
|
|
|
bool exit = false;
|
|
while(!exit && !glfwWindowShouldClose(window)) {
|
|
glfwPollEvents();
|
|
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
|
|
glClear(GL_COLOR_BUFFER_BIT);
|
|
|
|
glBindTexture(GL_TEXTURE_2D, waterfall);
|
|
#if defined(GL_UNPACK_ROW_LENGTH) && !defined(__EMSCRIPTEN__)
|
|
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
|
#endif
|
|
{
|
|
std::lock_guard<std::mutex> guard(waterfall_data_mutex);
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, waterfall_width, waterfall_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, waterfall_data);
|
|
}
|
|
|
|
ImGui_ImplOpenGL3_NewFrame();
|
|
ImGui_ImplGlfw_NewFrame();
|
|
ImGui::NewFrame();
|
|
|
|
ImGui::SetNextWindowPos(ImVec2(0.0f, 0.0f));
|
|
ImGui::SetNextWindowSize(io.DisplaySize);
|
|
ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
|
|
ImGui::Begin("microsa", nullptr, ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoResize);
|
|
|
|
ImGui::BeginTable("microsa", 2, ImGuiTableFlags_SizingStretchSame | ImGuiTableFlags_Resizable);
|
|
ImGui::TableSetupColumn("", 0, 280.0);
|
|
ImGui::TableSetupColumn("", 0, 1600.0);
|
|
ImGui::TableNextColumn();
|
|
if(ImGui::Button("Exit"))
|
|
exit = true;
|
|
ImGui::TableNextColumn();
|
|
ImGui::Image((void*)(intptr_t)waterfall, ImVec2(waterfall_width, waterfall_height));
|
|
ImGui::EndTable();
|
|
|
|
ImGui::End();
|
|
ImGui::PopStyleVar(1);
|
|
|
|
// Rendering
|
|
ImGui::Render();
|
|
ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
|
|
int display_w, display_h;
|
|
glfwGetFramebufferSize(window, &display_w, &display_h);
|
|
glViewport(0, 0, display_w, display_h);
|
|
glfwSwapBuffers(window);
|
|
}
|
|
|
|
return 0;
|
|
}
|