add webgl support

2019-10-05 21:08:40 +02:00
parent a1c0dcb007
commit f2a73a905d
19 changed files with 370 additions and 11 deletions
--- a/webgl/src/main.cpp
+++ b/webgl/src/main.cpp
@@ -0,0 +1,93 @@
+#include <pch.h>
+#include <stdio.h>
+#include <emscripten.h>
+#include <thread>
+#include <chrono>
+#include <app.h>
+#include <fstream>
+
+App app;
+GLFWwindow* wnd;
+float theta = 0;
+glm::vec2 g_cursor_pos;
+
+void main_loop()
+{
+    app.render_thread_tick();
+    app.ui_thread_tick();
+    
+    // theta += 0.1f;
+    // float r = sinf(theta);
+    // glClearColor(r, 0.9f, 0.9f, 1.0f);
+    // glClear(GL_COLOR_BUFFER_BIT);
+    // app.tick(0);
+    // app.update(0);
+    // app.draw(0);
+    // SDL_GL_SwapWindow(wnd);
+}
+
+int main()
+{
+    if (glfwInit() != GL_TRUE)
+        printf("Failed to init GLFW");
+    wnd = glfwCreateWindow(800, 600, "hello", nullptr, nullptr);
+    glfwMakeContextCurrent(wnd);
+
+    glfwSetCursorPosCallback(wnd, [](GLFWwindow* wnd, double x, double y){
+        g_cursor_pos = glm::vec2(x, y);
+        app.ui_task_async([=]{
+            app.mouse_move(x, y, 1.f, kEventSource::Mouse, false);
+        });
+    });
+    glfwSetMouseButtonCallback(wnd, [](GLFWwindow* wnd, int button, int action, int mods){
+        app.ui_task_async([=]{
+            if (action == GLFW_PRESS)
+                app.mouse_down(button, g_cursor_pos.x, g_cursor_pos.y, 1.f, kEventSource::Mouse, false);
+            else if (action == GLFW_RELEASE)
+                app.mouse_up(button, g_cursor_pos.x, g_cursor_pos.y, kEventSource::Mouse, false);
+        });
+    });
+    glfwSetWindowSizeCallback(wnd, [](GLFWwindow* wnd, int width, int height){
+        app.ui_task_async([=]{
+            app.resize(width, height);
+        });
+    });
+    glfwSetWindowCloseCallback(wnd, [](GLFWwindow* wnd){
+        app.ui_task([] {
+            if (!app.request_close())
+                glfwSetWindowShouldClose(app.glfw_window, GLFW_FALSE);
+        });
+    });
+    glfwSetWindowRefreshCallback(wnd, [](GLFWwindow* wnd){
+        app.ui_task_async([=]{
+            app.redraw = true;
+        }, true);
+    });
+
+    printf("GL version: %s\n", glGetString(GL_VERSION));
+    printf("GL vendor: %s\n", glGetString(GL_VENDOR));
+    printf("GL renderer: %s\n", glGetString(GL_RENDERER));
+    printf("GLSL version: %s\n", glGetString(GL_SHADING_LANGUAGE_VERSION));
+
+    App::I = &app;
+    app.initLog();
+    app.create();
+    app.width = 800;
+    app.height = 600;
+    app.glfw_window = wnd;
+
+    // app.render_thread_tick();
+    // app.ui_thread_tick();
+    app.ui_task_async([]{
+        app.init();
+    });
+
+    LOG("start threads");
+    //app.render_thread_start();
+    // app.ui_thread_start();
+
+    emscripten_set_main_loop(main_loop, 0, true);
+    printf("hello world 003\n");
+    return 0;
+}
+