eleni@0: #include <errno.h>
eleni@0: #include <stdio.h>
eleni@0: #include <stdlib.h>
eleni@0: #include <string.h>
eleni@0: 
eleni@0: #include <SDL2/SDL.h>
eleni@0: #include <GLES2/gl2.h>
eleni@0: #include <EGL/egl.h>
eleni@0: #include <EGL/eglext.h>
eleni@0: #include <EGL/eglplatform.h>
eleni@0: #include <KHR/khrplatform.h>
eleni@0: #include <gbm.h>
eleni@0: 
eleni@0: #include <fcntl.h>
eleni@0: #include <fnmatch.h>
eleni@0: #include <sys/stat.h>
eleni@0: #include <stdio.h>
eleni@0: #include <stdlib.h>
eleni@0: #include <unistd.h>
eleni@0: #include <assert.h>
eleni@0: #include <errno.h>
eleni@0: #include <libudev.h>
eleni@0: 
eleni@0: #include "drmtest.h"
eleni@0: 
eleni@0: int fd = -1;
eleni@0: static struct gbm_device *gbm_dev;
eleni@0: struct gbm_bo *bo;
eleni@0: struct gbm_surface *gbm_surf;
eleni@0: 
eleni@0: int main(int argc, char **argv)
eleni@0: {
eleni@0: //	if((fd = open("/dev/dri/card0", O_RDWR) == -1)) {
eleni@0: //		fprintf(stderr, "can't open device: %s\n", strerror(errno));
eleni@0: //		exit(1);
eleni@0: //	}
eleni@0: 	if((fd = drm_open_any()) == - 1) {
eleni@0: 		fprintf(stderr, "can't open device: %s\n", strerror(errno));
eleni@0: 		exit(1);
eleni@0: 	}
eleni@0: 
eleni@0: 	printf("fd: %d\n", fd);
eleni@0: 
eleni@0: 	if(!(gbm_dev = gbm_create_device(fd))) {
eleni@0: 		fprintf(stderr, "can't create gbm device: %s\n", strerror(errno));
eleni@0: 		exit(1);
eleni@0: 	}
eleni@0: 
eleni@0: 	if(!(gbm_surf = gbm_surface_create(gbm_dev, 640, 480,  GBM_BO_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING))) {
eleni@0: 		fprintf(stderr, "can't create gbm surface: %s\n", strerror(errno));
eleni@0: 		exit(1);
eleni@0: 	}
eleni@0: 
eleni@0: 	EGLDisplay dpy;
eleni@0: 	dpy = eglGetDisplay((_XDisplay*)gbm_dev);
eleni@0: 	EGLint major, minor;
eleni@0: 
eleni@0: 	//const char *ver;
eleni@0: 	const char *extensions;
eleni@0: 	eglInitialize(dpy, &major, &minor);
eleni@0: 	//ver = eglQueryString(dpy, EGL_VERSION);
eleni@0: 	extensions = eglQueryString(dpy, EGL_EXTENSIONS);
eleni@0: 
eleni@0: 	if (!strstr(extensions, "EGL_KHR_surfaceless_context")) {
eleni@0: 		fprintf(stderr, "no surfaceless support, cannot initialize\n");
eleni@0: 		exit(1);
eleni@0: 	}
eleni@0: 
eleni@0: 	SDL_Window *win;
eleni@0: 	SDL_GLContext ctx;
eleni@0: 
eleni@0: 	if(SDL_Init(SDL_INIT_VIDEO) == -1) {
eleni@0: 		fprintf(stderr, "failed to initialize sdl\n");
eleni@0: 		return 1;
eleni@0: 	}
eleni@0: 
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_EGL, 1);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
eleni@0: 	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
eleni@0: 	//SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
eleni@0: 
eleni@0: 	if(!(bo = gbm_bo_create(gbm_dev, 640, 480, GBM_BO_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING))) {
eleni@0: 		fprintf(stderr, "Unable to create gbm buffer object!\n");
eleni@0: 	}
eleni@0: 
eleni@0: 	win = SDL_CreateWindow("foo", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640, 480,
eleni@0: 			SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN);
eleni@0: 
eleni@0: 	if(!win) {
eleni@0: 		fprintf(stderr, "failed to create window: %s\n", SDL_GetError());
eleni@0: 		return 1;
eleni@0: 	}
eleni@0: 
eleni@0: 	if(!(ctx = SDL_GL_CreateContext(win))) {
eleni@0: 		fprintf(stderr, "failed to create OpenGL context: %s\n", SDL_GetError());
eleni@0: 		return 1;
eleni@0: 	}
eleni@0: 
eleni@0: 	glClearColor(1.0, 0.0, 0.0, 1.0);
eleni@0: 	glClear(GL_COLOR_BUFFER_BIT);
eleni@0: 
eleni@0: 	SDL_GL_SwapWindow(win);
eleni@0: 	SDL_Delay(5000);
eleni@0: 
eleni@0: 	gbm_device_destroy(gbm_dev);
eleni@0: 	SDL_GL_DeleteContext(win);
eleni@0: 	SDL_DestroyWindow(win);
eleni@0: 	SDL_Quit();
eleni@0: 	return 0;
eleni@0: }