Question

How to write text on window using GLFW and bgfx in C++

Answer 1

#include <GLFW/glfw3.h>

#include "bx/bx.h"
#include "bgfx/bgfx.h"
#include "bgfx/platform.h"

#define GLFW_EXPOSE_NATIVE_WIN32
#include "GLFW/glfw3native.h"

#define WIDTH 1200
#define HEIGHT 800

int main(int argc, char* argv[]) {
    
    if (!glfwInit())
        return 1;
    
    GLFWwindow* window = glfwCreateWindow(WIDTH, HEIGHT, "bgfx 3d graphics library", NULL, NULL);

    glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);

    bgfx::Init init;

    init.platformData.nwh = glfwGetWin32Window(window);

    int width, height;
    glfwGetWindowSize(window, &width, &height);
    init.resolution.width = WIDTH;
    init.resolution.height = HEIGHT;
    init.resolution.reset = BGFX_RESET_VSYNC;

    if (!bgfx::init(init))
        return 1;
    
    const bgfx::ViewId kClearView = 0;
    bgfx::setViewClear(0, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH, 0x33AA55FF, 1.0f, 0);
    bgfx::setViewRect(kClearView, 0, 0, WIDTH, HEIGHT);
    bgfx::touch(0);

    static bool s_showStats = false;

    while (!glfwWindowShouldClose(window)) {
        glfwPollEvents();

        bgfx::dbgTextClear();
        bgfx::dbgTextPrintf(0, 0, 0x0f, "bgfx - Cross-platform rendering library");
        bgfx::setDebug(s_showStats ? BGFX_DEBUG_STATS : BGFX_DEBUG_TEXT);

        bgfx::frame();
    }

    bgfx::shutdown();
    glfwTerminate();

    return 0;
}

 

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