Add a font loader

Pontu/entryPoints/test.c

@@ -1,6 +1,7 @@
 //#include "../test/testTextureLoader.c"
-#include "../test/testAudio.c"
-#include "../test/testGenerateurTexture.c"
+#include "../test/testFontLoader.c"
+// #include "../test/testAudio.c"
+// #include "../test/testGenerateurTexture.c"
 
 /*
     This file is meant to be modified (used only to called other tests functions)
@@ -9,7 +10,8 @@
 int main(/*int argc, char *argv[]*/) {
 	//testTextureLoader();
 	//testAudio();
-	testGenerateurTexture();
+	testFontLoader();
+	//testGenerateurTexture();
 
 	return 0;
 }

Pontu/include/engine/FontLoader.h

@@ -0,0 +1,47 @@
+#ifndef FONT_LOADER_INCLUDED
+#define FONT_LOADER_INCLUDED
+
+#define FONT_PATH rsrc/font/
+
+#define MACRO_FOR_ALL_FONTS(M)       \
+        M(retro)
+#define MACRO_FONT_ENUM_GEN(E) FONT_##E,
+
+#include <SDL2/SDL_ttf.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+
+
+
+typedef enum
+{
+        MACRO_FOR_ALL_FONTS(MACRO_FONT_ENUM_GEN) 
+        NB_FONTS_DEFINED ///< Contains the number of fonts
+} EnumFont;
+
+typedef struct
+{
+        TTF_Font* fonts[NB_FONTS_DEFINED]; ///< An array of texture (indexed with EnumTextures)
+} FontHandler;
+
+/*
+ * \brief Allows to load fonts located in rsrc/font/. Pleas note that all fonts must be in TTF format.
+ * \author Allan Point
+ * \date 03/01/22
+ * \return A FontHandler filled with all fonts
+ * \copyright CECIL
+ */
+FontHandler loadFonts(void);
+
+/*
+ * \brief Allows to free all fonts from a FontHandler.
+ * \author Allan Point
+ * \date 03/01/22
+ * \return True on success. Else false. Normaly, this function will always retrun true.
+ * \copyright CECIL
+ */
+bool freeFonts(FontHandler fontHandler);
+
+
+#endif

Pontu/src/engine/FontLoader.c

@@ -0,0 +1,46 @@
+#include "engine/FontLoader.h"
+
+#define MACRO_TO_FONT_NAME(N) #N".TTF",
+
+const char* fontNames[] = {
+        MACRO_FOR_ALL_FONTS(MACRO_TO_FONT_NAME)
+};
+
+FontHandler loadFonts(void)
+{
+	const char fontPath[] = "rsrc/font/";
+	FontHandler fontHandler;
+	char* fontPathFile = NULL;
+	for(int i=0; i<NB_FONTS_DEFINED; ++i)
+	{
+		fontPathFile = (char*) malloc(strlen(fontPath)+strlen(fontNames[i]));
+		if(fontPathFile == NULL)
+		{
+			fprintf(stderr, "Error: Internal memory error for font file name\n");
+			continue;
+		}
+		strcpy(fontPathFile, fontPath);
+		strcat(fontPathFile, fontNames[i]);
+		fontHandler.fonts[i] = TTF_OpenFont(fontPathFile, 16);
+		if(fontHandler.fonts[i] == NULL)
+		{
+			fprintf(stderr, "Warning: Can't load %s: %s\n", fontPathFile, TTF_GetError());
+		}
+		else
+		{
+			printf("Note: %s%s loaded\n", fontPath, fontNames[i]);
+		}
+		free(fontPathFile);
+	}
+}
+
+bool freeFonts(FontHandler fontHandler)
+{
+	for(int i=0; i<NB_FONTS_DEFINED; ++i)
+	{
+		TTF_CloseFont(fontHandler.fonts[i]);
+		fontHandler.fonts[i] = NULL;
+		printf("Note: Free font n°%d\n", i);
+	}
+	return true;
+}

Pontu/test/testFontLoader.c

@@ -0,0 +1,97 @@
+#include <SDL2/SDL.h>
+#include <stdio.h>
+#include "engine/TextureLoader.h"
+#include "engine/FontLoader.h"
+
+//gcc test.c -I ../include $(sdl2-config --cflags --libs)
+
+int testFontLoader(void) {
+    SDL_Window *window = NULL;
+    SDL_Renderer *renderer = NULL;
+    SDL_Texture* picture;
+    int statut = EXIT_FAILURE;
+    char* path = "rsrc/img/Lenna.png";
+
+    if(0 != SDL_Init(SDL_INIT_VIDEO))
+    {
+        fprintf(stderr, "Erreur SDL_INIT: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    //fenetre
+    window = SDL_CreateWindow("Fenêtre", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 640,480, SDL_WINDOW_SHOWN);
+    if(window == NULL)
+    {
+        fprintf(stderr, "Erreur SDL_CreateWindow: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    //rendu
+    renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED);
+    if(renderer == NULL)
+    {
+        fprintf(stderr, "Erreur SDL_CreateRenderer: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    //Fonts
+    if(TTF_Init() == -1)
+    {
+	fprintf(stderr, "Erreur: TTF_Init: %s\n", TTF_GetError());
+	goto Quit;
+    }
+
+    if(0 != SDL_SetRenderDrawColor(renderer, 0,0,0,0))  //choisi la couleur avec laquelle travailler
+    {
+        fprintf(stderr, "Erreur SDL_SetRenderDrawColor: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    if(0 != SDL_RenderClear(renderer))  //efface le rendu en le repeignant avec la couleur choisi
+    {
+        fprintf(stderr, "Erreur SDL_SetRenderDrawColor: %s\n", SDL_GetError());
+        goto Quit;
+    }
+
+    if(0 != SDL_SetRenderDrawColor(renderer, 255,255,255,255))  //choisi la couleur avec laquelle travailler
+    {
+        fprintf(stderr, "Erreur SDL_SetRenderDrawColor: %s\n", SDL_GetError());
+        goto Quit;
+    }
+    SDL_RenderPresent(renderer);
+
+    SDL_bool quit = SDL_FALSE;
+    SDL_Event event;
+
+    
+    picture = createTextureFromPath(renderer, path);
+    FontHandler fontHandler = loadFonts();
+    while(!quit)
+    {
+        while(SDL_PollEvent(&event))
+        {
+            switch(event.type)
+            {
+            case SDL_QUIT:
+                quit = SDL_TRUE;
+                break;
+            case SDL_MOUSEBUTTONUP:
+                break;
+            }
+        }
+	SDL_RenderCopy(renderer, picture, NULL, NULL);
+        SDL_RenderPresent(renderer);
+
+        SDL_Delay(20);
+    }
+
+Quit:
+    freeFonts(fontHandler);
+    if(renderer != NULL)
+        SDL_DestroyRenderer(renderer);
+    if(window != NULL)
+        SDL_DestroyWindow(window);
+    TTF_Quit();
+    SDL_Quit();
+    return statut;
+}