REVIEWED: `GenImageFontAtlas()` #2556

Just reviewed font atlas size estimation, now it considers `fontSize` instead of `chars[i].image.height`, increasing considerably the atlas size estimation.

src/rtext.c

@@ -686,13 +686,13 @@ Image GenImageFontAtlas(const GlyphInfo *chars, Rectangle **charRecs, int glyphC
     // NOTE 2: SDF font characters already contain an internal padding,
     // so image size would result bigger than default font type
     float requiredArea = 0;
-    for (int i = 0; i < glyphCount; i++) requiredArea += ((chars[i].image.width + 2*padding)*(chars[i].image.height + 2*padding));
+    for (int i = 0; i < glyphCount; i++) requiredArea += ((chars[i].image.width + 2*padding)*(fontSize + 2*padding));
     float guessSize = sqrtf(requiredArea)*1.4f;
-    int imageSize = (int)powf(2, ceilf(logf((float)guessSize)/logf(2)));  // Calculate next POT
+    int imageSize = (int)powf(2, ceilf(logf((float)guessSize)/logf(2)));    // Calculate next POT
 
     atlas.width = imageSize;   // Atlas bitmap width
     atlas.height = imageSize;  // Atlas bitmap height
-    atlas.data = (unsigned char *)RL_CALLOC(1, atlas.width*atlas.height);      // Create a bitmap to store characters (8 bpp)
+    atlas.data = (unsigned char *)RL_CALLOC(1, atlas.width*atlas.height);   // Create a bitmap to store characters (8 bpp)
     atlas.format = PIXELFORMAT_UNCOMPRESSED_GRAYSCALE;
     atlas.mipmaps = 1;