Hi,
I’am going on SDL2 developement and I had some trouble when I load a picture or external ressource like a TTF font.
When I launch the app by Terminal it work like a charm, but when I launch by the Tracker it don"t load the picture.
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
#include <stdlib.h>
#include <SDL2/SDL.h>
#include <SDL2/SDL_ttf.h>
#include <SDL2/SDL_image.h>
#include <string.h>
char *Concat(char* chaine1, char* chaine2);
int main(int argc, char ** argv)
{
int texW=100;
int texH=100;
const char *text ="Hello les gens";
char cwd[255]={0};
char buffer[PATH_MAX+16];
char newpath[PATH_MAX+16]="/data/image.png";
int quit = 0;
if (getcwd(cwd, sizeof(cwd)) != NULL) {
printf("Current working dir:%s\n", cwd);
} else {
perror("getcwd() error");
return 1;
}
strcpy(buffer,cwd);
Concat(cwd,newpath);
const char *finalpath=cwd;
printf("finalpath:%s\n",finalpath);
SDL_Event event;
SDL_Init(SDL_INIT_VIDEO|SDL_INIT_EVENTS);
TTF_Init();
IMG_Init(IMG_INIT_PNG);
SDL_Window * window = SDL_CreateWindow("SDL Displaying Image",
SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640,480,0);
SDL_Renderer * renderer = SDL_CreateRenderer(window,-1,SDL_RENDERER_ACCELERATED);
SDL_Surface * surface = IMG_Load(finalpath);
if(!surface)
{
printf("Impossible de charger l'image:%s",SDL_GetError());
}
SDL_Texture * texture = SDL_CreateTextureFromSurface(renderer, surface);
SDL_RenderClear(renderer);
SDL_RenderCopy(renderer, texture, NULL, NULL);
SDL_Color color = {255,255,255};
TTF_Font *font_arial=NULL;
font_arial=TTF_OpenFont("/boot/system/data/fonts/ttfonts/NotoSans-Regular.ttf", 14);
if(!font_arial)
{
fprintf(stdout,"Erreur de chargement de la font\n");
}
//On récupèree la taille du texte
if(TTF_SizeText(font_arial,text,&texW, &texH))
{
printf("Error loading text");
}
SDL_FreeSurface(surface);
surface=TTF_RenderText_Solid(font_arial,text,color);
if(!surface)
{
printf("Erreur de rendu Text: %s\n",TTF_GetError());
}
//On positionne le texte
SDL_Rect dstrect = { 10, 400, texW, texH };
texture = SDL_CreateTextureFromSurface(renderer, surface);
//SDL_RenderCopy(renderer, texture,NULL,NULL);
SDL_QueryTexture(texture, NULL, NULL, &texW, &texH);
SDL_RenderCopy(renderer, texture, NULL, &dstrect);
SDL_RenderPresent(renderer);
while(!quit)
{
SDL_WaitEvent(&event);
switch(event.type)
{
case SDL_QUIT:
quit=1;
break;
}
}
SDL_DestroyTexture(texture);
SDL_FreeSurface(surface);
TTF_CloseFont(font_arial);
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
IMG_Quit();
TTF_Quit();
SDL_Quit();
return 0;
}
char* Concat(char *chaine1, char *chaine2)
{
int i = 0, k = 0;
for(i=0,k=0;chaine2[k]!='\0';i++)
{
if(chaine1[i]== '\0'){
for(; chaine2[k] != '\0' ; i++, k++)
chaine1[i] = chaine2[k];
}
}
return chaine1;
}
