public static void SavePNG(string file, int destinationWidth, int destinationHeight, int sourceWidth, int sourceHeight, byte[] data)
{
IntPtr surface = GetScaledSurface(FlipImageData(sourceWidth, sourceHeight, 4, data), sourceWidth, sourceHeight, destinationWidth, destinationHeight);
SDL_image.IMG_SavePNG(surface, file);
SDL_FreeSurface(surface);
}
public void Save(string path)
{
if (m_lock != null)
{
throw new InvalidOperationException();
}
App.CheckSDLResult("IMG_SavePNG", SDL_image.IMG_SavePNG(m_surface, path));
}
bool INTERNAL_Save_SDLSurface(IntPtr sdlSurface, ImageTypes fileType, string filename)
{
if (string.IsNullOrEmpty(filename))
{
return(false);
}
if (sdlSurface == IntPtr.Zero)
{
return(false);
}
bool ret = false;
var mustLock = SDL.SDL_MUSTLOCK(sdlSurface);
if (mustLock)
{
SDL.SDL_LockSurface(sdlSurface);
}
switch (fileType)
{
case ImageTypes.PNG:
{
// NOTE: THIS IS BROKEN IN SDL2! NEED TO GET A REPLACEMENT FUNCTION FOR IT!
ret = SDL_image.IMG_SavePNG(sdlSurface, filename) == 0;
break;
}
default:
{
break;
}
}
if (mustLock)
{
SDL.SDL_UnlockSurface(sdlSurface);
}
return(ret);
}
public void SaveClientToPNG(String filePath)
{
DoAndCheckError(SDL_image.IMG_SavePNG(pBackBufferSurface, filePath), "Error saving client to PNG.");
}
public static void SavePNG(SDLSurface Surface, string File)
{
Util.ThrowIfResultIsError(SDL_image.IMG_SavePNG(Surface.Ptr, File));
}
public unsafe static void Pack(Config config)
{
Console.WriteLine("Checking directories...");
for (int i = 0; i < config.Directories.Count; i++)
{
if (!Directory.Exists(config.Directories[i]))
{
throw new Exception($"Input directory: '{config.Directories[i]}' does not exist.");
}
}
if (!Directory.Exists(config.Output))
{
_ = Directory.CreateDirectory(config.Output);
}
// Clear out previously built atlases
foreach (string file in Directory.GetFiles(config.Output, $"*{config.Name}*.png"))
{
File.Delete(file);
}
foreach (string file in Directory.GetFiles(config.Output, $"*{config}.xml"))
{
File.Delete(file);
}
Console.WriteLine("Loading surfaces...");
List <(string, IntPtr)> surfaces = new List <(string, IntPtr)>();
int err = SDL_image.IMG_Init(SDL_image.IMG_InitFlags.IMG_INIT_PNG | SDL_image.IMG_InitFlags.IMG_INIT_JPG | SDL_image.IMG_InitFlags.IMG_INIT_TIF);
if (err < 0)
{
throw new Exception(SDL_GetError());
}
foreach (string dir in config.Directories)
{
List <string> dirs = new List <string>()
{
dir
};
dirs.AddRange(Directory.GetDirectories(dir, "*", new EnumerationOptions()
{
RecurseSubdirectories = true
}));
foreach (string file in dirs.SelectMany(d => Directory.GetFiles(d, config.FileFilter)))
{
string ext = Path.GetExtension(file);
switch (ext)
{
case ".png":
case ".bmp":
case ".jpeg":
case ".jpg":
case ".tiff":
case ".tif":
case ".gif":
case ".tga":
IntPtr image = SDL_image.IMG_Load(file);
if (((SDL_PixelFormat *)((SDL_Surface *)image)->format)->format != SDL_PIXELFORMAT_ABGR8888)
{
image = SDL_ConvertSurfaceFormat(image, SDL_PIXELFORMAT_ABGR8888, 0);
}
surfaces.Add((file.Substring(dir.Length).Replace('\\', '/').TrimStart('/'), image));
break;
default:
continue;
}
}
}
Console.WriteLine("Computing, blitting and saving atlases...");
int count = 0;
var atlas = SDL_CreateRGBSurfaceWithFormat(0, config.AtlasWidth, config.AtlasHeight, 32, SDL_PIXELFORMAT_ABGR8888);
var sources = new List <(string id, int index, bool rot, SDL_Rect rect)>();
var mrbp = new MaxRectsBinPack(config.AtlasWidth, config.AtlasHeight, config.AllowRotations);
// Until the full list is emptied out, find the next best image to place
// If the mrbp starts returning 0 rectangles, create a new atlas and continue
while (surfaces.Count > 0)
{
int lowestScore1 = int.MaxValue;
int lowestScore2 = int.MaxValue;
int bestIndex = -1;
SDL_Rect best = new SDL_Rect();
for (int i = 0; i < surfaces.Count; ++i)
{
int score1 = 0;
int score2 = 0;
SDL_Rect newNode = mrbp.ScoreRect(((SDL_Surface *)surfaces[i].Item2)->w, ((SDL_Surface *)surfaces[i].Item2)->h,
MaxRectsBinPack.FreeRectChoiceHeuristic.RectBestShortSideFit, ref score1, ref score2);
if (score1 < lowestScore1 || score1 == lowestScore1 && score2 < lowestScore2)
{
lowestScore1 = score1;
lowestScore2 = score2;
best = newNode;
bestIndex = i;
}
}
if (bestIndex == -1)
{
_ = SDL_image.IMG_SavePNG(atlas, Path.Combine(config.Output, config.Name + count.ToString() + ".png"));
SDL_FreeSurface(atlas);
atlas = SDL_CreateRGBSurfaceWithFormat(0, config.AtlasWidth, config.AtlasHeight, 32, SDL_PIXELFORMAT_ABGR8888);
mrbp.Init(config.AtlasWidth, config.AtlasHeight, config.AllowRotations);
count++;
}
else
{
var sptr = (SDL_Surface *)surfaces[bestIndex].Item2;
bool flipped = sptr->h == best.w;
if (flipped)
{
var flipd = (SDL_Surface *)SDL_CreateRGBSurfaceWithFormat(0, sptr->h, sptr->w, 32, SDL_PIXELFORMAT_ABGR8888);
for (int y = 0; y < sptr->h; y++)
{
for (int x = 0; x < sptr->w; x++)
{
// swapping the coords and inverting one produces rotation
uint *target = (uint *)(flipd->pixels + x * flipd->pitch + (sptr->h - y - 1) * 4);
* target = *(uint *)(sptr->pixels + y * sptr->pitch + x * 4);
}
}
_ = SDL_BlitSurface(new IntPtr(flipd), IntPtr.Zero, atlas, ref best);
SDL_FreeSurface(new IntPtr(flipd));
SDL_FreeSurface(new IntPtr(sptr));
}
else
{
_ = SDL_BlitSurface(new IntPtr(sptr), IntPtr.Zero, atlas, ref best);
SDL_FreeSurface(new IntPtr(sptr));
}
sources.Add((surfaces[bestIndex].Item1, count, flipped, best));
surfaces.RemoveAt(bestIndex);
mrbp.PlaceRect(best);
}
}
// save current/last atlas
_ = SDL_image.IMG_SavePNG(atlas, Path.Combine(config.Output, config.Name + count.ToString() + ".png"));
SDL_FreeSurface(atlas);
Console.WriteLine("Writing json data to disk...");
// Write JSON data
File.WriteAllText(Path.Combine(config.Output, config.Name + ".json"), Newtonsoft.Json.JsonConvert.SerializeObject(sources));
sources.Clear();
Console.WriteLine("Done");
}