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UltimateZoneBuilder/Source/Core/IO/FileImageReader.cs

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#region ================== Copyright (c) 2007 Pascal vd Heiden
/*
* Copyright (c) 2007 Pascal vd Heiden, www.codeimp.com
* This program is released under GNU General Public License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#endregion
#region ================== Namespaces
using System;
using System.Runtime.InteropServices;
using System.IO;
using System.Drawing;
using CodeImp.DoomBuilder.Rendering;
using System.Drawing.Imaging;
using CodeImp.DoomBuilder.Data;
#endregion
namespace CodeImp.DoomBuilder.IO
{
//mxd
internal struct DevilImageType
{
internal const int IL_TYPE_UNKNOWN = 0x0000;
//internal const int IL_DOOM = 0x0422; //!< DooM walls - no specific extension
//internal const int IL_DOOM_FLAT = 0x0423; //!< DooM flats - no specific extension
internal const int IL_JPG = 0x0425; //!< JPEG - .jpg, .jpe and .jpeg extensions
internal const int IL_PCX = 0x0428; //!< ZSoft PCX - .pcx extension
internal const int IL_PNG = 0x042A; //!< Portable Network Graphics - .png extension
internal const int IL_TGA = 0x042D; //!< TrueVision Targa File - .tga, .vda, .icb and .vst extensions
internal const int IL_GIF = 0x0436; //!< Graphics Interchange Format - .gif extension
internal const int IL_DDS = 0x0437; //!< DirectDraw Surface - .dds extension
}
// [ZZ]
internal enum DevilError
{
IL_NO_ERROR = 0x0000,
IL_INVALID_ENUM = 0x0501,
IL_OUT_OF_MEMORY = 0x0502,
IL_FORMAT_NOT_SUPPORTED = 0x0503,
IL_INTERNAL_ERROR = 0x0504,
IL_INVALID_VALUE = 0x0505,
IL_ILLEGAL_OPERATION = 0x0506,
IL_ILLEGAL_FILE_VALUE = 0x0507,
IL_INVALID_FILE_HEADER = 0x0508,
IL_INVALID_PARAM = 0x0509,
IL_COULD_NOT_OPEN_FILE = 0x050A,
IL_INVALID_EXTENSION = 0x050B,
IL_FILE_ALREADY_EXISTS = 0x050C,
IL_OUT_FORMAT_SAME = 0x050D,
IL_STACK_OVERFLOW = 0x050E,
IL_STACK_UNDERFLOW = 0x050F,
IL_INVALID_CONVERSION = 0x0510,
IL_BAD_DIMENSIONS = 0x0511,
IL_FILE_READ_ERROR = 0x0512, // 05/12/2002: Addition by Sam.
IL_FILE_WRITE_ERROR = 0x0512,
IL_LIB_GIF_ERROR = 0x05E1,
IL_LIB_JPEG_ERROR = 0x05E2,
IL_LIB_PNG_ERROR = 0x05E3,
IL_LIB_TIFF_ERROR = 0x05E4,
IL_LIB_MNG_ERROR = 0x05E5,
IL_UNKNOWN_ERROR = 0x05FF
}
internal unsafe class FileImageReader : IImageReader
{
#region ================== APIs
[DllImport("devil.dll")]
private static extern void ilEnable(int num);
[DllImport("devil.dll")]
private static extern void ilGenImages(int num, IntPtr images);
[DllImport("devil.dll")]
private static extern void ilBindImage(uint image);
[DllImport("devil.dll")]
private static extern void ilDeleteImages(int num, IntPtr images);
[DllImport("devil.dll")]
private static extern void ilOriginFunc(int func);
[DllImport("devil.dll")]
private static extern bool ilLoadL(uint type, IntPtr lump, uint size);
[DllImport("devil.dll")]
private static extern int ilGetInteger(uint mode);
[DllImport("devil.dll")]
private static extern int ilGetError();
[DllImport("devil.dll")]
private static extern int ilConvertImage(uint destformat, uint desttype);
[DllImport("devil.dll")]
private static extern uint ilCopyPixels(uint xoff, uint yoff, uint zoff, uint width, uint height, uint depth, uint format, uint type, IntPtr data);
//
private const int IL_ORIGIN_SET = 0x0600;
private const int IL_ORIGIN_LOWER_LEFT = 0x0601;
private const int IL_ORIGIN_UPPER_LEFT = 0x0602;
//mxd. Look's like we don't need many of those...
// Matches OpenGL's right now.
//! Data formats \link Formats Formats\endlink
//private const int IL_COLOUR_INDEX = 0x1900;
//private const int IL_COLOR_INDEX = 0x1900;
//private const int IL_ALPHA = 0x1906;
//private const int IL_RGB = 0x1907;
//private const int IL_RGBA = 0x1908;
//private const int IL_BGR = 0x80E0;
private const int IL_BGRA = 0x80E1;
//private const int IL_LUMINANCE = 0x1909;
//private const int IL_LUMINANCE_ALPHA = 0x190A;
//! Data types \link Types Types\endlink
//private const int IL_BYTE = 0x1400;
private const int IL_UNSIGNED_BYTE = 0x1401;
/*private const int IL_SHORT = 0x1402;
private const int IL_UNSIGNED_SHORT = 0x1403;
private const int IL_INT = 0x1404;
private const int IL_UNSIGNED_INT = 0x1405;
private const int IL_FLOAT = 0x1406;
private const int IL_DOUBLE = 0x140A;
private const int IL_HALF = 0x140B;*/
// Image types
//private const int IL_TYPE_UNKNOWN = 0x0000;
/*private const int IL_BMP = 0x0420; //!< Microsoft Windows Bitmap - .bmp extension
private const int IL_CUT = 0x0421; //!< Dr. Halo - .cut extension
private const int IL_DOOM = 0x0422; //!< DooM walls - no specific extension
private const int IL_DOOM_FLAT = 0x0423; //!< DooM flats - no specific extension
private const int IL_ICO = 0x0424; //!< Microsoft Windows Icons and Cursors - .ico and .cur extensions
private const int IL_JPG = 0x0425; //!< JPEG - .jpg, .jpe and .jpeg extensions
private const int IL_JFIF = 0x0425; //!<
private const int IL_ILBM = 0x0426; //!< Amiga IFF (FORM ILBM) - .iff, .ilbm, .lbm extensions
private const int IL_PCD = 0x0427; //!< Kodak PhotoCD - .pcd extension
private const int IL_PCX = 0x0428; //!< ZSoft PCX - .pcx extension
private const int IL_PIC = 0x0429; //!< PIC - .pic extension
private const int IL_PNG = 0x042A; //!< Portable Network Graphics - .png extension
private const int IL_PNM = 0x042B; //!< Portable Any Map - .pbm, .pgm, .ppm and .pnm extensions
private const int IL_SGI = 0x042C; //!< Silicon Graphics - .sgi, .bw, .rgb and .rgba extensions
private const int IL_TGA = 0x042D; //!< TrueVision Targa File - .tga, .vda, .icb and .vst extensions
private const int IL_TIF = 0x042E; //!< Tagged Image File Format - .tif and .tiff extensions
private const int IL_CHEAD = 0x042F; //!< C-Style Header - .h extension
private const int IL_RAW = 0x0430; //!< Raw Image Data - any extension
private const int IL_MDL = 0x0431; //!< Half-Life Model Texture - .mdl extension
private const int IL_WAL = 0x0432; //!< Quake 2 Texture - .wal extension
private const int IL_LIF = 0x0434; //!< Homeworld Texture - .lif extension
private const int IL_MNG = 0x0435; //!< Multiple-image Network Graphics - .mng extension
private const int IL_JNG = 0x0435; //!<
private const int IL_GIF = 0x0436; //!< Graphics Interchange Format - .gif extension
private const int IL_DDS = 0x0437; //!< DirectDraw Surface - .dds extension
private const int IL_DCX = 0x0438; //!< ZSoft Multi-PCX - .dcx extension
private const int IL_PSD = 0x0439; //!< Adobe PhotoShop - .psd extension
private const int IL_EXIF = 0x043A; //!<
private const int IL_PSP = 0x043B; //!< PaintShop Pro - .psp extension
private const int IL_PIX = 0x043C; //!< PIX - .pix extension
private const int IL_PXR = 0x043D; //!< Pixar - .pxr extension
private const int IL_XPM = 0x043E; //!< X Pixel Map - .xpm extension
private const int IL_HDR = 0x043F; //!< Radiance High Dynamic Range - .hdr extension
private const int IL_ICNS = 0x0440; //!< Macintosh Icon - .icns extension
private const int IL_JP2 = 0x0441; //!< Jpeg 2000 - .jp2 extension
private const int IL_EXR = 0x0442; //!< OpenEXR - .exr extension
private const int IL_WDP = 0x0443; //!< Microsoft HD Photo - .wdp and .hdp extension
private const int IL_VTF = 0x0444; //!< Valve Texture Format - .vtf extension
private const int IL_WBMP = 0x0445; //!< Wireless Bitmap - .wbmp extension
private const int IL_SUN = 0x0446; //!< Sun Raster - .sun, .ras, .rs, .im1, .im8, .im24 and .im32 extensions
private const int IL_IFF = 0x0447; //!< Interchange File Format - .iff extension
private const int IL_TPL = 0x0448; //!< Gamecube Texture - .tpl extension
private const int IL_FITS = 0x0449; //!< Flexible Image Transport System - .fit and .fits extensions
private const int IL_DICOM = 0x044A; //!< Digital Imaging and Communications in Medicine (DICOM) - .dcm and .dicom extensions
private const int IL_IWI = 0x044B; //!< Call of Duty Infinity Ward Image - .iwi extension
private const int IL_BLP = 0x044C; //!< Blizzard Texture Format - .blp extension
private const int IL_FTX = 0x044D; //!< Heavy Metal: FAKK2 Texture - .ftx extension
private const int IL_ROT = 0x044E; //!< Homeworld 2 - Relic Texture - .rot extension
private const int IL_TEXTURE = 0x044F; //!< Medieval II: Total War Texture - .texture extension
private const int IL_DPX = 0x0450; //!< Digital Picture Exchange - .dpx extension
private const int IL_UTX = 0x0451; //!< Unreal (and Unreal Tournament) Texture - .utx extension
private const int IL_MP3 = 0x0452; //!< MPEG-1 Audio Layer 3 - .mp3 extension*/
//private const int IL_JASC_PAL = 0x0475; //!< PaintShop Pro Palette
// Error Types
/*private const int IL_NO_ERROR = 0x0000;
private const int IL_INVALID_ENUM = 0x0501;
private const int IL_OUT_OF_MEMORY = 0x0502;
private const int IL_FORMAT_NOT_SUPPORTED = 0x0503;
private const int IL_INTERNAL_ERROR = 0x0504;
private const int IL_INVALID_VALUE = 0x0505;
private const int IL_ILLEGAL_OPERATION = 0x0506;
private const int IL_ILLEGAL_FILE_VALUE = 0x0507;
private const int IL_INVALID_FILE_HEADER = 0x0508;
private const int IL_INVALID_PARAM = 0x0509;
private const int IL_COULD_NOT_OPEN_FILE = 0x050A;
private const int IL_INVALID_EXTENSION = 0x050B;
private const int IL_FILE_ALREADY_EXISTS = 0x050C;
private const int IL_OUT_FORMAT_SAME = 0x050D;
private const int IL_STACK_OVERFLOW = 0x050E;
private const int IL_STACK_UNDERFLOW = 0x050F;
private const int IL_INVALID_CONVERSION = 0x0510;
private const int IL_BAD_DIMENSIONS = 0x0511;
private const int IL_FILE_READ_ERROR = 0x0512; // 05/12/2002: Addition by Sam.
private const int IL_FILE_WRITE_ERROR = 0x0512;*/
/*private const int IL_LIB_GIF_ERROR = 0x05E1;
private const int IL_LIB_JPEG_ERROR = 0x05E2;
private const int IL_LIB_PNG_ERROR = 0x05E3;
private const int IL_LIB_TIFF_ERROR = 0x05E4;
private const int IL_LIB_MNG_ERROR = 0x05E5;
private const int IL_LIB_JP2_ERROR = 0x05E6;
private const int IL_LIB_EXR_ERROR = 0x05E7;
private const int IL_UNKNOWN_ERROR = 0x05FF;*/
// Origin Definitions
/*private const int IL_ORIGIN_SET = 0x0600;
private const int IL_ORIGIN_LOWER_LEFT = 0x0601;
private const int IL_ORIGIN_UPPER_LEFT = 0x0602;
private const int IL_ORIGIN_MODE = 0x0603;*/
// Format and Type Mode Definitions
/*private const int IL_FORMAT_SET = 0x0610;
private const int IL_FORMAT_MODE = 0x0611;
private const int IL_TYPE_SET = 0x0612;
private const int IL_TYPE_MODE = 0x0613;*/
// File definitions
/*private const int IL_FILE_OVERWRITE = 0x0620;
private const int IL_FILE_MODE = 0x0621;
*/
// Palette definitions
//private const int IL_CONV_PAL = 0x0630;
// Load fail definitions
//private const int IL_DEFAULT_ON_FAIL = 0x0632;
// Key colour and alpha definitions
/*private const int IL_USE_KEY_COLOUR = 0x0635;
private const int IL_USE_KEY_COLOR = 0x0635;
private const int IL_BLIT_BLEND = 0x0636;*/
// Interlace definitions
/*private const int IL_SAVE_INTERLACED = 0x0639;
private const int IL_INTERLACE_MODE = 0x063A;*/
// Quantization definitions
/*private const int IL_QUANTIZATION_MODE = 0x0640;
private const int IL_WU_QUANT = 0x0641;
private const int IL_NEU_QUANT = 0x0642;
private const int IL_NEU_QUANT_SAMPLE = 0x0643;
private const int IL_MAX_QUANT_INDEXS = 0x0644; //XIX : ILint : Maximum number of colors to reduce to, default of 256. and has a range of 2-256
private const int IL_MAX_QUANT_INDICES = 0x0644; // Redefined, since the above private const int is misspelled*/
// Hints
/*private const int IL_FASTEST = 0x0660;
private const int IL_LESS_MEM = 0x0661;
private const int IL_DONT_CARE = 0x0662;
private const int IL_MEM_SPEED_HINT = 0x0665;
private const int IL_USE_COMPRESSION = 0x0666;
private const int IL_NO_COMPRESSION = 0x0667;
private const int IL_COMPRESSION_HINT = 0x0668;*/
// Compression
/*private const int IL_NVIDIA_COMPRESS = 0x0670;
private const int IL_SQUISH_COMPRESS = 0x0671;*/
// Subimage types
/*private const int IL_SUB_NEXT = 0x0680;
private const int IL_SUB_MIPMAP = 0x0681;
private const int IL_SUB_LAYER = 0x0682;*/
// Compression definitions
/*private const int IL_COMPRESS_MODE = 0x0700;
private const int IL_COMPRESS_NONE = 0x0701;
private const int IL_COMPRESS_RLE = 0x0702;
private const int IL_COMPRESS_LZO = 0x0703;
private const int IL_COMPRESS_ZLIB = 0x0704;*/
// File format-specific values
/*private const int IL_TGA_CREATE_STAMP = 0x0710;
private const int IL_JPG_QUALITY = 0x0711;
private const int IL_PNG_INTERLACE = 0x0712;
private const int IL_TGA_RLE = 0x0713;
private const int IL_BMP_RLE = 0x0714;
private const int IL_SGI_RLE = 0x0715;
private const int IL_TGA_ID_STRING = 0x0717;
private const int IL_TGA_AUTHNAME_STRING = 0x0718;
private const int IL_TGA_AUTHCOMMENT_STRING = 0x0719;
private const int IL_PNG_AUTHNAME_STRING = 0x071A;
private const int IL_PNG_TITLE_STRING = 0x071B;
private const int IL_PNG_DESCRIPTION_STRING = 0x071C;
private const int IL_TIF_DESCRIPTION_STRING = 0x071D;
private const int IL_TIF_HOSTCOMPUTER_STRING = 0x071E;
private const int IL_TIF_DOCUMENTNAME_STRING = 0x071F;
private const int IL_TIF_AUTHNAME_STRING = 0x0720;
private const int IL_JPG_SAVE_FORMAT = 0x0721;
private const int IL_CHEAD_HEADER_STRING = 0x0722;
private const int IL_PCD_PICNUM = 0x0723;
private const int IL_PNG_ALPHA_INDEX = 0x0724; //XIX : ILint : the color in the palette at this index value (0-255) is considered transparent, -1 for no trasparent color
private const int IL_JPG_PROGRESSIVE = 0x0725;
private const int IL_VTF_COMP = 0x0726;*/
// DXTC definitions
/*private const int IL_DXTC_FORMAT = 0x0705;
private const int IL_DXT1 = 0x0706;
private const int IL_DXT2 = 0x0707;
private const int IL_DXT3 = 0x0708;
private const int IL_DXT4 = 0x0709;
private const int IL_DXT5 = 0x070A;
private const int IL_DXT_NO_COMP = 0x070B;
private const int IL_KEEP_DXTC_DATA = 0x070C;
private const int IL_DXTC_DATA_FORMAT = 0x070D;
private const int IL_3DC = 0x070E;
private const int IL_RXGB = 0x070F;
private const int IL_ATI1N = 0x0710;
private const int IL_DXT1A = 0x0711; // Normally the same as IL_DXT1, except for nVidia Texture Tools.*/
// Environment map definitions
/*private const int IL_CUBEMAP_POSITIVEX = 0x00000400;
private const int IL_CUBEMAP_NEGATIVEX = 0x00000800;
private const int IL_CUBEMAP_POSITIVEY = 0x00001000;
private const int IL_CUBEMAP_NEGATIVEY = 0x00002000;
private const int IL_CUBEMAP_POSITIVEZ = 0x00004000;
private const int IL_CUBEMAP_NEGATIVEZ = 0x00008000;
private const int IL_SPHEREMAP = 0x00010000;*/
// Values
//private const int IL_VERSION_NUM = 0x0DE2;
private const int IL_IMAGE_WIDTH = 0x0DE4;
private const int IL_IMAGE_HEIGHT = 0x0DE5;
/*private const int IL_IMAGE_DEPTH = 0x0DE6;
private const int IL_IMAGE_SIZE_OF_DATA = 0x0DE7;
private const int IL_IMAGE_BPP = 0x0DE8;
private const int IL_IMAGE_BYTES_PER_PIXEL = 0x0DE8;
private const int IL_IMAGE_BITS_PER_PIXEL = 0x0DE9;
private const int IL_IMAGE_FORMAT = 0x0DEA;
private const int IL_IMAGE_TYPE = 0x0DEB;
private const int IL_PALETTE_TYPE = 0x0DEC;
private const int IL_PALETTE_SIZE = 0x0DED;
private const int IL_PALETTE_BPP = 0x0DEE;
private const int IL_PALETTE_NUM_COLS = 0x0DEF;
private const int IL_PALETTE_BASE_TYPE = 0x0DF0;
private const int IL_NUM_FACES = 0x0DE1;
private const int IL_NUM_IMAGES = 0x0DF1;
private const int IL_NUM_MIPMAPS = 0x0DF2;
private const int IL_NUM_LAYERS = 0x0DF3;
private const int IL_ACTIVE_IMAGE = 0x0DF4;
private const int IL_ACTIVE_MIPMAP = 0x0DF5;
private const int IL_ACTIVE_LAYER = 0x0DF6;
private const int IL_ACTIVE_FACE = 0x0E00;
private const int IL_CUR_IMAGE = 0x0DF7;
private const int IL_IMAGE_DURATION = 0x0DF8;
private const int IL_IMAGE_PLANESIZE = 0x0DF9;
private const int IL_IMAGE_BPC = 0x0DFA;
private const int IL_IMAGE_OFFX = 0x0DFB;
private const int IL_IMAGE_OFFY = 0x0DFC;
private const int IL_IMAGE_CUBEFLAGS = 0x0DFD;
private const int IL_IMAGE_ORIGIN = 0x0DFE;
private const int IL_IMAGE_CHANNELS = 0x0DFF;*/
//mxd
private readonly uint imagetype;
// [ZZ]
private byte[] imagebytes;
// [ZZ] basically, the logic here is: if the image is not loaded correctly,
// then it might be misinterpreted Doom headerless image.
// so here we just allocate a DoomFlat/Colormap/Image reader and proxy calls
private readonly int guesstype;
private readonly Playpal guesspalette;
private IImageReader proxyreader;
#endregion
#region ================== Constructor / Disposer
// Constructor
public FileImageReader()
{
imagetype = DevilImageType.IL_TYPE_UNKNOWN;//mxd
// We have no destructor
GC.SuppressFinalize(this);
}
//mxd
public FileImageReader(uint devilImagetype)
{
imagetype = devilImagetype;//mxd
// We have no destructor
GC.SuppressFinalize(this);
}
// [ZZ]
public FileImageReader(uint devilImagetype, int guesstype, Playpal guesspalette)
{
imagetype = devilImagetype;
this.guesstype = guesstype;
this.guesspalette = guesspalette;
// We have no destructor
GC.SuppressFinalize(this);
}
#endregion
#region ================== Methods
// This creates a Bitmap from the given data
// Returns null on failure
public Bitmap ReadAsBitmap(Stream stream, out int offsetx, out int offsety)
{
if (proxyreader != null)
return proxyreader.ReadAsBitmap(stream, out offsetx, out offsety);
offsetx = int.MinValue;
offsety = int.MinValue;
Bitmap bmp = ReadAsBitmap(stream);
//mxd. Read PNG offsets
if(imagetype == DevilImageType.IL_PNG && bmp != null)
{
stream.Position = 8;
using(BinaryReader reader = new BinaryReader(stream))
{
// Read chunks untill we encounter either "grAb" or "IDAT"
while(reader.BaseStream.Position < reader.BaseStream.Length)
{
// Big Endian!
int chunklength = ToInt32BigEndian(reader.ReadBytes(4));
string chunkname = new string(reader.ReadChars(4));
if(chunkname == "grAb")
{
offsetx = ToInt32BigEndian(reader.ReadBytes(4));
offsety = ToInt32BigEndian(reader.ReadBytes(4));
break;
}
else if(chunkname == "IDAT")
{
break;
}
else
{
// Skip the rest of the chunk
reader.BaseStream.Position += chunklength + 4;
}
}
}
}
// Return the image
return bmp;
}
// This wraps a stream but makes Close/Dispose do nothing. That prevents.net's Image.FromStream from closing it as we want to fall back to other image loaders.
class NoCloseStream : Stream
{
Stream stream;
public NoCloseStream(Stream s) { stream = s; }
public override bool CanRead { get { return stream.CanRead; } }
public override bool CanSeek { get { return stream.CanSeek; } }
public override bool CanWrite { get { return stream.CanWrite; } }
public override bool CanTimeout { get { return stream.CanTimeout; } }
public override int ReadTimeout { get { return stream.ReadTimeout; } }
public override int WriteTimeout { get { return stream.WriteTimeout; } }
public override int EndRead(IAsyncResult asyncResult) { return stream.EndRead(asyncResult); }
public override void EndWrite(IAsyncResult asyncResult) { stream.EndWrite(asyncResult); }
public override int ReadByte() { return stream.ReadByte(); }
public override long Length { get { return stream.Length; } }
public override void WriteByte(byte value) { stream.WriteByte(value); }
public override long Position { get { return stream.Position; } set { stream.Position = value; } }
public override void Flush() { stream.Flush(); }
public override int Read(byte[] buffer, int offset, int count) { return stream.Read(buffer, offset, count); }
public override long Seek(long offset, SeekOrigin origin) { return stream.Seek(offset, origin); }
public override void SetLength(long value) { stream.SetLength(value); }
public override void Write(byte[] buffer, int offset, int count) { stream.Write(buffer, offset, count); }
}
static object syncobject = new object();
// This reads the image and returns a Bitmap
public Bitmap ReadAsBitmap(Stream stream)
{
if (proxyreader != null)
return proxyreader.ReadAsBitmap(stream);
// Let the .net framework try first
try
{
using (var image = Image.FromStream(new NoCloseStream(stream)))
{
return new Bitmap(image);
}
}
catch
{
stream.Seek(0, SeekOrigin.Begin);
}
string error;
lock (syncobject) // DevIL is not thread safe.
{
try
{
// Create an image in DevIL
uint imageid = 0;
ilGenImages(1, new IntPtr(&imageid));
ilBindImage(imageid);
// Read image data from stream
byte[] bytes;
if (imagebytes == null)
{
bytes = new byte[stream.Length];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(bytes, 0, bytes.Length);
imagebytes = bytes;
}
else bytes = imagebytes;
ilEnable(IL_ORIGIN_SET);
ilOriginFunc(IL_ORIGIN_UPPER_LEFT);
fixed (byte* bptr = bytes)
{
if (!ilLoadL(imagetype, new IntPtr(bptr), (uint)bytes.Length))
throw new BadImageFormatException();
}
// [ZZ] check if there was any error code
DevilError ilerror = (DevilError)ilGetError();
if (ilerror != DevilError.IL_NO_ERROR)
throw new BadImageFormatException("DevIL error: " + ilerror.ToString());
// Get the image properties
int width = ilGetInteger(IL_IMAGE_WIDTH);
int height = ilGetInteger(IL_IMAGE_HEIGHT);
if ((width < 1) || (height < 1))
throw new BadImageFormatException();
// Convert the image to ARGB if needed
ilConvertImage(IL_BGRA, IL_UNSIGNED_BYTE);
// Copy the image pixels to a Bitmap
Bitmap bmp = new Bitmap(width, height, PixelFormat.Format32bppArgb);
BitmapData bmpdata = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
ilCopyPixels(0, 0, 0, (uint)width, (uint)height, 1, IL_BGRA, IL_UNSIGNED_BYTE, bmpdata.Scan0);
bmp.UnlockBits(bmpdata);
// Clean up
ilDeleteImages(1, new IntPtr(&imageid));
return bmp;
}
catch (Exception e)
{
// Remove last error from the stack. Workaround for https://github.com/jewalky/GZDoom-Builder-Bugfix/issues/295
ilGetError();
error = "Unable to make file image. " + e.GetType().Name + ": " + e.Message;
}
}
// [ZZ] try to make a guessed reader
switch (guesstype)
{
case ImageDataFormat.DOOMPICTURE:
// Check if data is valid for a doom picture
stream.Seek(0, SeekOrigin.Begin);
DoomPictureReader picreader = new DoomPictureReader(guesspalette);
if (picreader.Validate(stream)) proxyreader = picreader;
break;
case ImageDataFormat.DOOMFLAT:
// Check if data is valid for a doom flat
stream.Seek(0, SeekOrigin.Begin);
DoomFlatReader flatreader = new DoomFlatReader(guesspalette);
if (flatreader.Validate(stream)) proxyreader = flatreader;
break;
case ImageDataFormat.DOOMCOLORMAP:
// Check if data is valid for a doom colormap
stream.Seek(0, SeekOrigin.Begin);
DoomColormapReader colormapreader = new DoomColormapReader(guesspalette);
if (colormapreader.Validate(stream)) proxyreader = colormapreader;
break;
}
if (proxyreader != null)
{
stream.Seek(0, SeekOrigin.Begin);
return proxyreader.ReadAsBitmap(stream);
}
// Unable to make bitmap
General.ErrorLogger.Add(ErrorType.Error, error);
return null;
}
// This draws the picture to the given pixel color data
// Throws exception on failure
public void DrawToPixelData(Stream stream, PixelColor* target, int targetwidth, int targetheight, int x, int y)
{
// Get bitmap
Bitmap bmp = ReadAsBitmap(stream);
if(bmp != null)
{
int width = bmp.Size.Width;
int height = bmp.Size.Height;
// Lock bitmap pixels
BitmapData bmpdata = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
PixelColor* pixels = (PixelColor*)bmpdata.Scan0.ToPointer();
// Go for all pixels in the original image
for(int ox = 0; ox < width; ox++)
{
for(int oy = 0; oy < height; oy++)
{
// Copy this pixel?
if(pixels[oy * width + ox].a > 0.5f)
{
// Calculate target pixel and copy when within bounds
int tx = x + ox;
int ty = y + oy;
if((tx >= 0) && (tx < targetwidth) && (ty >= 0) && (ty < targetheight))
target[ty * targetwidth + tx] = pixels[oy * width + ox];
}
}
}
// Done
bmp.UnlockBits(bmpdata);
bmp.Dispose();
}
else
{
throw new InvalidDataException();
}
}
//mxd
private static int ToInt32BigEndian(byte[] buffer)
{
return (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3];
}
public bool Validate(Stream stream)
{
uint _vimageid = 0;
try
{
byte[] bytes;
if (imagebytes == null)
{
bytes = new byte[stream.Length];
stream.Seek(0, SeekOrigin.Begin);
stream.Read(bytes, 0, bytes.Length);
imagebytes = bytes;
}
else bytes = imagebytes;
// Create an image in DevIL
ilGenImages(1, new IntPtr(&_vimageid));
ilBindImage(_vimageid);
// Read image data from stream
fixed (byte* bptr = bytes)
{
if (!ilLoadL(imagetype, new IntPtr(bptr), (uint)bytes.Length))
throw new BadImageFormatException();
}
// [ZZ] check if there was any error code
DevilError ilerror = (DevilError)ilGetError();
if (ilerror != DevilError.IL_NO_ERROR)
throw new BadImageFormatException("DevIL error: " + ilerror.ToString());
// Get the image properties
int width = ilGetInteger(IL_IMAGE_WIDTH);
int height = ilGetInteger(IL_IMAGE_HEIGHT);
if ((width < 1) || (height < 1))
throw new BadImageFormatException();
// Clean up
ilDeleteImages(1, new IntPtr(&_vimageid));
_vimageid = 0;
}
catch (Exception /*e*/)
{
//General.ErrorLogger.Add(ErrorType.Warning, e.ToString());
return false;
}
finally
{
if (_vimageid != 0)
{
try
{
ilDeleteImages(1, new IntPtr(&_vimageid));
}
catch (Exception /*e_nested*/)
{
/* really really failed */
}
}
}
return true;
}
#endregion
}
}
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