Error of failed request: GLXBadDrawable (C++ bgfx) - c++

I am trying to make a purple window with glfw and bgfx as just a starting point for my game engine but when launching the binary it throws me an error. I am trying to create the purple window as shown in the image down below:
I am using cmake for it and the error is:
anuj#fedora ~/D/C/C/c/o/build> ./bgfx_test
X Error of failed request: GLXBadDrawable
Major opcode of failed request: 152 (GLX)
Minor opcode of failed request: 11 (X_GLXSwapBuffers)
Serial number of failed request: 33
Current serial number in output stream: 33
I want to use opengl for it my CMakeLists.txt is:
cmake_minimum_required(VERSION 3.22.1)
project(bgfx_test)
set(CMAKE_CXX_STANDARD 14)
add_executable(bgfx_test main.cpp )
target_link_libraries(bgfx_test bgfx glfw3 GL dl X11)
and my main.cpp file is:
#include <GL/gl.h>
#include "submods/bgfx.cmake/bgfx/examples/common/common.h"
#include "submods/bgfx.cmake/bgfx/examples/common/bgfx_utils.h"
#include "submods/bgfx.cmake/bgfx/include/bgfx/bgfx.h"
#include <GLFW/glfw3.h>
#include <iostream>
#define GLFW_EXPOSE_NATIVE_X11
#include <GLFW/glfw3native.h>
void exit(GLFWwindow *window)
{
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_TRUE)
{
/* code */
glfwSetWindowShouldClose(window, true);
}
}
int main()
{
``` glfwInit();
GLFWwindow *window = glfwCreateWindow(900, 900, "learn_bgfx", NULL, NULL);
if (window == NULL)
{
printf("no glfw");
glfwTerminate();
return -1;
}
bgfx::PlatformData pd;
pd.ndt = glfwGetX11Display();
pd.nwh = (void *)glfwGetX11Window(window);
bgfx::Init bgfxInit;
bgfxInit.type = bgfx::RendererType::Count; // Automatically choose a renderer.
bgfxInit.resolution.width = 900;
bgfxInit.resolution.height = 900;
bgfxInit.resolution.reset = BGFX_RESET_VSYNC;
bgfx::init(bgfxInit);
bgfx::setViewClear(0, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH, 0x443355FF, 1.0f, 0);
bgfx::setViewRect(0, 0, 0, 900, 900);
unsigned int counter = 0;
while (true)
{
bgfx::frame();
counter++;
}
glfwTerminate();
return 0;
```
}
and my projects files are:
main.cpp
test.cpp
CMakeLists.txt
submods
bgfx.cmake
out
build
and here is the make file for main.cpp

Related

GLFW WSl2: Display Environment Variable missing

I've installed WSL2 on Windows 10 along with GLFW. When I try to run the default GLFW example program, I run into the following error X11: The DISPLAY environment variable is missing. I build the program using this command-line:
g++ main.cpp -lglfw -lGL -o main
Program:
#include <stdio.h>
#include <iostream>
#include <GLFW/glfw3.h>
static void glfwError(int /*id*/, const char* description)
{
std::cerr << description << '\n';
exit(0);
}
int main(void)
{
GLFWwindow* window;
glfwSetErrorCallback(&glfwError);
/* Initialize the library */
if (!glfwInit())
return -1;
/* Create a windowed mode window and its OpenGL context */
window = glfwCreateWindow(640, 480, "Hello World", NULL, NULL);
if (!window)
{
glfwTerminate();
return -1;
}
/* Make the window's context current */
glfwMakeContextCurrent(window);
/* Loop until the user closes the window */
while (!glfwWindowShouldClose(window))
{
/* Render here */
glClear(GL_COLOR_BUFFER_BIT);
/* Swap front and back buffers */
glfwSwapBuffers(window);
/* Poll for and process events */
glfwPollEvents();
}
glfwTerminate();
return 0;
}
How can I fix this issue?

CLion, SDL2, CMake: No available video device

I am trying to start using SDL2 (with CLion as my IDE), but I'm running into errors. I'm on Pop!_OS 19.10 (based on ubuntu)
Here are the relevant project files:
CMakeLists.txt
cmake_minimum_required(VERSION 3.13)
project(sdlpractice)
set(CMAKE_CXX_STANDARD 20)
find_package(SDL2 REQUIRED)
include_directories(${SDL2_INCLUDE_DIRS})
add_executable(sdlpractice main.cpp)
target_link_libraries(sdlpractice ${SDL2_LIBRARIES})
Main.cpp
#include "SDL2/SDL.h"
#include "stdio.h"
const int SCREEN_WIDTH = 640;
const int SCREEN_HEIGHT = 480;
int main(int argc, char* args[]) {
// The window we will be rendering to
SDL_Window * ptrWindow = NULL;
// The surface contained by the window
SDL_Surface * ptrScreenSurface = NULL;
// Initialize SDL
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
printf("SDL could not initialize! SDL_Error: %s\n", SDL_GetError());
} else {
// Create window
ptrWindow = SDL_CreateWindow("SDL Practice",
SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
if (ptrWindow == nullptr) {
printf("Window creation failed: %s\n", SDL_GetError());
}
// Get window surface
ptrScreenSurface = SDL_GetWindowSurface(ptrWindow);
// Fill the surface white
SDL_FillRect(ptrScreenSurface, NULL, SDL_MapRGB(ptrScreenSurface->format, 0xFF, 0xFF, 0xFF));
// Update the surface
SDL_UpdateWindowSurface(ptrWindow);
// Wait 2 seconds
SDL_Delay(2000);
// Destroy window, quit SDL subsystems
SDL_DestroyWindow(ptrWindow);
SDL_Quit();
return 0;
}
}
I get the following error:
SDL could not initialize! SDL_Error: No available video device
I have tried setting DISPLAY=:0.0 in CLion's run configurations. Same error results. Futhermore, I ran
echo $DISPLAY
:1
and tried using :1 as well, same error persists.
Removing /usr/local/bin/sdl2-config,/usr/local/include/SDL2 and /usr/local/lib/libSDL2* (as suggested by Botje) solved the problem due to the self-built version of SDL2 missing the required video headers.

how to use GLFW with openGL?

I'm trying to compile a short openGl and GLFW code but I'm failing in..
I've included all the .h like this :
#include <stdio.h>
#include <stdlib.h>
#include <GL/glew.h>
#include <GL/glfw2.h>
I'm on linux so I've made a :
sudo zypper install libglfw2
When I'm compiling like this :
g++ main.cpp -lGLU
I have :
main.cpp:14:22: fatal error: GL/glfw2.h:Any file or directory
#include <GL/glfw2.h>
^
compilation terminated.
I've also tried to include #include <GL/glfw3.h> but without success.
This is my complet code :
#include <stdio.h>
#include <stdlib.h>
#include <GL/glew.h>
#include <GL/glfw2.h>
int main()
{
if (glfwInit() == false)
{
fprintf(stderr, "GLFW failed to initialise.\n");
return (-1);
}
glfwWindowHint(GLFW_FSAA_SAMPLES, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
GLFWwindow* window;
window = glfwCreateWindow(640, 480, "OPENGL", NULL, NULL);
if (!window)
{
fprintf(stderr, "Window failed to create\n");
glfwTerminate();
return (-1);
}
glfwMakeContextCurrent(window);
glewExperimental = true;
if (glewInit() != GLEW_OK)
{
fprintf(stderr, "Failed to initialize GLEW\n");
return (-1);
}
return (0);
}
Could someone know what I have to do to compile my code ?
Thanks
There is no GL/glfw2.h and never has been, and the code above uses the GLFW 3 API. See Renamed library and header file for more information about header paths.
There is no reason to use GLFW 2 for new projects, so I would avoid the libglfw2 package. Instead see if there is a GLFW 3 package.

c++ Transitioning from single source file to multiple files. error: 'blank' does not name a type

I am currently attempting to write a very simple 2d game engine using SDL in order to help myself get more comfortable with coding. Unfortunately, I made the mistake of starting with a single source file, and now that my code is getting bigger, I am trying to split the existing code (which works fine before the split) into multiple header and source files. The first major issue I've encountered is that when I try to define SCREEN_HEIGHT, SCREEN_WIDTH, Window, and Renderer in init.cpp after declaring them in init.h, I get error: 'blank' does not name a type (blank being Window, Renderer, etc.). I am also trying to make them global, which may be part of the issue. Included below is the relevant code (I took out all the stuff I think is irrelevant in this case). I suspect I'm just missing something really simple here, but I've been unable to find an existing answer online like I have with my previous problems.
main.cpp
#include "globals.h"
#include "texture.h"
....
globals.h
#ifndef GLOBALS
#define GLOBALS
#include <SDL.h>
#include <SDL_image.h>
#include <SDL_ttf.h>
#include <stdio.h>
#include <string>
#endif //GLOBALS
texture.h
#ifndef TEXTURE
#define TEXTURE
#include "globals.h"
#include "init.h"
....
#endif // TEXTURE
texture.cpp
#include "texture.h"
....
init.h
#ifndef INIT
#define INIT
#include "globals.h"
//screen dimensions
int SCREEN_WIDTH;
int SCREEN_HEIGHT;
//initiates SDL and creates a window and renderer
bool init();
//the created window
SDL_Window* Window;
//the renderer that will be used
SDL_Renderer* Renderer;
#endif // INIT
init.cpp
#include "init.h"
SCREEN_WIDTH = 640;
SCREEN_HEIGHT = 480;
Window = NULL;
Renderer = NULL;
bool init()
{
bool success = true;
if( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_AUDIO) < 0)
{
printf( "SDL was unable to initialize! SDL Error: %s\n", SDL_GetError());
success = false;
}
else
{
if( !SDL_SetHint( SDL_HINT_RENDER_SCALE_QUALITY, "1"))
{
printf( "Linear texture filtering not enabled!");
}
else
{
Window = SDL_CreateWindow( "Window", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH, SCREEN_HEIGHT, SDL_WINDOW_SHOWN);
if( Window == NULL)
{
printf( "Window could not be created! SDL Error: %s\n", SDL_GetError());
success = false;
}
else
{
Renderer = SDL_CreateRenderer( Window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
if( Renderer == NULL)
{
printf( "Renderer could not be created! SDL Error: %s\n", SDL_GetError());
success = false;
}
else
{
SDL_SetRenderDrawColor( Renderer, 0xFF, 0xFF, 0xFF, 0xFF);
int PNGImage = IMG_INIT_PNG;
if( !(IMG_Init( PNGImage) & PNGImage))
{
printf( "Image loading not enabled! SDL_Image Error: %s\n", IMG_GetError());
success = false;
}
if( TTF_Init() == -1)
{
printf( "True type fonts not enabled! SDL_TTF Error: %s\n", TTF_GetError());
success = false;
}
}
}
}
}
return success;
}
I get the error in init.cpp at the top of the code before bool init()
Renderer = NULL; is an assignment statement, which you cannot have in global scope. You can only have declarations in global scope. Since you have already declared Renderer in your header file, you don't need to redeclare it either. Just set it to null within one of your initialization functions (e.g. your current init() function).

Visual Studio 2013 and OpenGL

I have recently purchased a new laptop and got a new version of VS from my school. And I'm having a little trouble setting up my libraries.
I created a basic SDL_Window, as well as a SDL_GLContext.
I'm able to include my libraries and run the program, but I can't call functions like glClearColor, or glGetString(GL_VERSION). I get a rather strage warning and an error that I have never seen before, I'm guessing it's related to the 2013 version?
I have tried ignoring all specific default libraries, as well as trying to change the programtype (Multithreaded DLL, those 4).
And I have made sure all the dll-files are in place in my system folder.
What makes me wonder is the fact that glewInit() works, but not glClearColor() etc...
Output:
1>MSVCRTD.lib(cinitexe.obj) : warning LNK4098: defaultlib 'msvcrt.lib'
conflicts with use of other libs; use /NODEFAULTLIB:library
1>Window.obj : error LNK2019: unresolved external symbol
__imp__glClearColor#16 referenced in function "public: void __thiscall Window::initOpenGL(void)" (?initOpenGL#Window##QAEXXZ)
1>C:\Users\Aleksander\documents\visual studio 2013\Projects\OpenGL
Test\Debug\OpenGL Test.exe : fatal error LNK1120: 1 unresolved
externals
Header:
#pragma once
#include <SDL.h> //Tested OK
#include <SDL_image.h> //Tested OK
#include <SDL_mixer.h> //Tested OK
#include <SDL_net.h> //Tested OK
#include <OpenGL\glew.h> //?
#include <freeglut\freeglut.h> //?
#include <gl\GL.h> //?
#include <glm\glm.hpp> //Tested OK
#include <iostream> //Standard OK
#include <Box2D\Box2D.h> //Tested OK
using namespace std;
class Window {
SDL_Window *window;
SDL_GLContext context;
bool quit;
public:
Window();
~Window();
void initSDL();
void initOpenGL();
void run();
};
Source:
#include "Window.h"
Window::Window() {
printf("Starting window...\n");
//Initialize window
quit = false;
initSDL();
initOpenGL();
//Run window
run();
}
Window::~Window() {
printf("Closing window...\n");
//Clear window memory
SDL_GL_DeleteContext(context);
SDL_DestroyWindow(window);
//Close window library
SDL_Quit();
}
void Window::initSDL() {
if (SDL_Init(SDL_INIT_EVERYTHING) == -1) {
quit = true;
printf("Unable to initialize SDL!\n");
}
else {
//Create window
const char *title = "OpenGL Test";
int pos = SDL_WINDOWPOS_CENTERED;
int w = 800;
int h = 600;
Uint32 flags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN;
window = SDL_CreateWindow(title, pos, pos, w, h, flags);
//Create OpenGL context
SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
context = SDL_GL_CreateContext(window);
}
}
void Window::initOpenGL() {
GLenum init = glewInit();
if (init != GLEW_OK) {
quit = true;
printf("Unable to initialize OpenGL!\n");
printf("Error: %s!\n", glewGetErrorString(init));
}
else {
//printf("Vendor: %s\n", glGetString(GL_VENDOR));
//printf("Version: %s\n", glGetString(GL_VERSION));
//printf("Renderer: %s\n", glGetString(GL_RENDERER));
}
}
void Window::run() {
printf("Window started running!\n");
SDL_Event event;
while (!quit) {
SDL_GL_SwapWindow(window);
while (SDL_PollEvent(&event)) {
if (event.type == SDL_QUIT) {
quit = true;
}
}
}
}