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// ==========================================================
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// Design and implementation by
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// - David Boland (davidboland@vodafone.ie)
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// This file is part of FreeImage 3
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// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS,
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// WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED,
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// INCLUDING, WITHOUT LIMITATION, WARRANTIES THAT THE COVERED CODE IS
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// FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE OR
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// NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
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// OF THE COVERED CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE
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// DEFECTIVE IN ANY RESPECT, YOU (NOT THE INITIAL DEVELOPER OR ANY
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// OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY SERVICING,
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// REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN
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// ESSENTIAL PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS
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// AUTHORIZED HEREUNDER EXCEPT UNDER THIS DISCLAIMER.
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// Use at your own risk!
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// ==========================================================
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using System.Runtime.InteropServices;
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namespace FreeImageAPI
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using FIBITMAP = UInt32;
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Handle to a multipage file
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using FIMULTIBITMAP = UInt32;
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Handle to a memory I/O stream
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using FIMEMORY = UInt32;
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Handle to a metadata model
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using FIMETADATA = UInt32;
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Handle to a FreeImage tag
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/* [StructLayout(LayoutKind.Sequential)]
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public class FreeImageIO
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public FI_ReadProc readProc;
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public FI_WriteProc writeProc;
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public FI_SeekProc seekProc;
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public FI_TellProc tellProc;
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[StructLayout(LayoutKind.Sequential)]
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public class FI_Handle
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public FileStream stream;
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public delegate void FI_ReadProc(IntPtr buffer, uint size, uint count, IntPtr handle);
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public delegate void FI_WriteProc(IntPtr buffer, uint size, uint count, IntPtr handle);
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public delegate int FI_SeekProc(IntPtr handle, long offset, int origin);
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public delegate int FI_TellProc(IntPtr handle);
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// Types used in the library (directly copied from Windows) -----------------
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[StructLayout(LayoutKind.Sequential)]
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public class RGBQUAD {
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public byte rgbReserved;
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[StructLayout(LayoutKind.Sequential)]
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public class RGBTRIPLE {
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public byte rgbtGreen;
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These structures should not be used by a wrapper
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[StructLayout(LayoutKind.Sequential)]
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public class BITMAPINFOHEADER {
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public ushort biPlanes;
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public ushort biBitCount;
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public uint biCompression;
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public uint biSizeImage;
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public int biXPelsPerMeter;
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public int biYPelsPerMeter;
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public uint biClrUsed;
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public uint biClrImportant;
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[StructLayout(LayoutKind.Sequential)]
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public class BITMAPINFO {
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public BITMAPINFOHEADER bmiHeader;
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public RGBQUAD bmiColors;
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// Types used in the library (specific to FreeImage) ------------------------
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[StructLayout(LayoutKind.Sequential)]
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public class FIRGB16 {
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[StructLayout(LayoutKind.Sequential)]
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public class FIRGBA16 {
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[StructLayout(LayoutKind.Sequential)]
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public class FIRGBF {
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/** 128-bit RGBA Float
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[StructLayout(LayoutKind.Sequential)]
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public class FIRGBAF {
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/** Data structure for COMPLEX type (complex number)
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[StructLayout(LayoutKind.Sequential)]
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public class FICOMPLEX {
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// ICC profile support ------------------------------------------------------
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public enum ICCFlags {
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FIICC_DEFAULT = 0x00,
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FIICC_COLOR_IS_CMYK = 0x01
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[StructLayout(LayoutKind.Sequential)]
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public class FIICCPROFILE {
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public ushort flags; // info flag
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public uint size; // profile's size measured in bytes
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public IntPtr data; // points to a block of contiguous memory containing the profile
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// Important enums ----------------------------------------------------------
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public enum LoadSaveFlags {
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EXR_DEFAULT = 0, // save data as half with piz-based wavelet compression
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EXR_FLOAT = 0x0001, // save data as float instead of as half (not recommended)
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EXR_NONE = 0x0002, // save with no compression
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EXR_ZIP = 0x0004, // save with zlib compression, in blocks of 16 scan lines
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EXR_PIZ = 0x0008, // save with piz-based wavelet compression
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EXR_PXR24 = 0x0010, // save with lossy 24-bit float compression
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EXR_B44 = 0x0020, // save with lossy 44% float compression - goes to 22% when combined with EXR_LC
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EXR_LC = 0x0040, // save images with one luminance and two chroma channels, rather than as RGB (lossy compression)
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GIF_LOAD256 = 1, // Load the image as a 256 color image with ununsed palette entries, if it's 16 or 2 color
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GIF_PLAYBACK = 2, // 'Play' the GIF to generate each frame (as 32bpp) instead of returning raw frame data when loading
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ICO_MAKEALPHA = 1, // convert to 32bpp and create an alpha channel from the AND-mask when loading
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J2K_DEFAULT = 0, // save with a 16:1 rate
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JP2_DEFAULT = 0, // save with a 16:1 rate
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JPEG_QUALITYSUPERB = 0x80,
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JPEG_QUALITYGOOD = 0x100,
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JPEG_QUALITYNORMAL = 0x200,
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JPEG_QUALITYAVERAGE = 0x400,
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JPEG_QUALITYBAD = 0x800,
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JPEG_CMYK = 0x1000, // load separated CMYK "as is" (use | to combine with other flags)
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PCD_BASE = 1, // load the bitmap sized 768 x 512
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PCD_BASEDIV4 = 2, // load the bitmap sized 384 x 256
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PCD_BASEDIV16 = 3, // load the bitmap sized 192 x 128
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PNG_IGNOREGAMMA = 1, // avoid gamma correction
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PNM_SAVE_RAW = 0, // If set the writer saves in RAW format (i.e. P4, P5 or P6)
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PNM_SAVE_ASCII = 1, // If set the writer saves in ASCII format (i.e. P1, P2 or P3)
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TARGA_LOAD_RGB888 = 1, // If set the loader converts RGB555 and ARGB8888 -> RGB888.
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TIFF_CMYK = 0x0001, // reads/stores tags for separated CMYK (use | to combine with compression flags)
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TIFF_PACKBITS = 0x0100, // save using PACKBITS compression
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TIFF_DEFLATE = 0x0200, // save using DEFLATE compression (a.k.a. ZLIB compression)
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TIFF_ADOBE_DEFLATE = 0x0400, // save using ADOBE DEFLATE compression
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TIFF_NONE = 0x0800, // save without any compression
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TIFF_CCITTFAX3 = 0x1000, // save using CCITT Group 3 fax encoding
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TIFF_CCITTFAX4 = 0x2000, // save using CCITT Group 4 fax encoding
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TIFF_LZW = 0x4000, // save using LZW compression
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TIFF_JPEG = 0x8000, // save using JPEG compression
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/** I/O image format identifiers.
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public enum FREE_IMAGE_FORMAT {
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/** Image type used in FreeImage.
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public enum FREE_IMAGE_TYPE {
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FIT_UNKNOWN = 0, // unknown type
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FIT_BITMAP = 1, // standard image : 1-, 4-, 8-, 16-, 24-, 32-bit
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FIT_UINT16 = 2, // array of unsigned short : unsigned 16-bit
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FIT_INT16 = 3, // array of short : signed 16-bit
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FIT_UINT32 = 4, // array of unsigned long : unsigned 32-bit
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FIT_INT32 = 5, // array of long : signed 32-bit
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FIT_FLOAT = 6, // array of float : 32-bit IEEE floating point
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FIT_DOUBLE = 7, // array of double : 64-bit IEEE floating point
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FIT_COMPLEX = 8, // array of FICOMPLEX : 2 x 64-bit IEEE floating point
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FIT_RGB16 = 9, // 48-bit RGB image : 3 x 16-bit
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FIT_RGBA16 = 10, // 64-bit RGBA image : 4 x 16-bit
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FIT_RGBF = 11, // 96-bit RGB float image : 3 x 32-bit IEEE floating point
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FIT_RGBAF = 12 // 128-bit RGBA float image : 4 x 32-bit IEEE floating point
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/** Image color type used in FreeImage.
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public enum FREE_IMAGE_COLOR_TYPE {
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FIC_MINISWHITE = 0, // min value is white
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FIC_MINISBLACK = 1, // min value is black
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FIC_RGB = 2, // RGB color model
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FIC_PALETTE = 3, // color map indexed
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FIC_RGBALPHA = 4, // RGB color model with alpha channel
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FIC_CMYK = 5 // CMYK color model
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/** Color quantization algorithms.
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Constants used in FreeImage_ColorQuantize.
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public enum FREE_IMAGE_QUANTIZE {
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FIQ_WUQUANT = 0, // Xiaolin Wu color quantization algorithm
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FIQ_NNQUANT = 1 // NeuQuant neural-net quantization algorithm by Anthony Dekker
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/** Dithering algorithms.
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Constants used in FreeImage_Dither.
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public enum FREE_IMAGE_DITHER {
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FID_FS = 0, // Floyd & Steinberg error diffusion
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FID_BAYER4x4 = 1, // Bayer ordered dispersed dot dithering (order 2 dithering matrix)
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FID_BAYER8x8 = 2, // Bayer ordered dispersed dot dithering (order 3 dithering matrix)
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FID_CLUSTER6x6 = 3, // Ordered clustered dot dithering (order 3 - 6x6 matrix)
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FID_CLUSTER8x8 = 4, // Ordered clustered dot dithering (order 4 - 8x8 matrix)
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FID_CLUSTER16x16= 5, // Ordered clustered dot dithering (order 8 - 16x16 matrix)
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FID_BAYER16x16 = 6 // Bayer ordered dispersed dot dithering (order 4 dithering matrix)
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/** Lossless JPEG transformations
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Constants used in FreeImage_JPEGTransform
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public enum FREE_IMAGE_JPEG_OPERATION {
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FIJPEG_OP_NONE = 0, // no transformation
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FIJPEG_OP_FLIP_H = 1, // horizontal flip
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FIJPEG_OP_FLIP_V = 2, // vertical flip
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FIJPEG_OP_TRANSPOSE = 3, // transpose across UL-to-LR axis
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FIJPEG_OP_TRANSVERSE = 4, // transpose across UR-to-LL axis
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FIJPEG_OP_ROTATE_90 = 5, // 90-degree clockwise rotation
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FIJPEG_OP_ROTATE_180 = 6, // 180-degree rotation
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FIJPEG_OP_ROTATE_270 = 7 // 270-degree clockwise (or 90 ccw)
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/** Tone mapping operators.
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Constants used in FreeImage_ToneMapping.
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public enum FREE_IMAGE_TMO {
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FITMO_DRAGO03 = 0, // Adaptive logarithmic mapping (F. Drago, 2003)
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FITMO_REINHARD05 = 1, // Dynamic range reduction inspired by photoreceptor physiology (E. Reinhard, 2005)
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FITMO_FATTAL02 = 2 // Gradient domain high dynamic range compression (R. Fattal, 2002)
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/** Upsampling / downsampling filters.
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Constants used in FreeImage_Rescale.
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public enum FREE_IMAGE_FILTER {
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FILTER_BOX = 0, // Box, pulse, Fourier window, 1st order (constant) b-spline
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FILTER_BICUBIC = 1, // Mitchell & Netravali's two-param cubic filter
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FILTER_BILINEAR = 2, // Bilinear filter
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FILTER_BSPLINE = 3, // 4th order (cubic) b-spline
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FILTER_CATMULLROM = 4, // Catmull-Rom spline, Overhauser spline
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FILTER_LANCZOS3 = 5 // Lanczos3 filter
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Constants used in color manipulation routines.
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public enum FREE_IMAGE_COLOR_CHANNEL {
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FICC_RGB = 0, // Use red, green and blue channels
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FICC_RED = 1, // Use red channel
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FICC_GREEN = 2, // Use green channel
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FICC_BLUE = 3, // Use blue channel
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FICC_ALPHA = 4, // Use alpha channel
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FICC_BLACK = 5, // Use black channel
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FICC_REAL = 6, // Complex images: use real part
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FICC_IMAG = 7, // Complex images: use imaginary part
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FICC_MAG = 8, // Complex images: use magnitude
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FICC_PHASE = 9 // Complex images: use phase
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// Metadata support ---------------------------------------------------------
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Tag data type information (based on TIFF specifications)
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Note: RATIONALs are the ratio of two 32-bit integer values.
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public enum FREE_IMAGE_MDTYPE {
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FIDT_NOTYPE = 0, // placeholder
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FIDT_BYTE = 1, // 8-bit unsigned integer
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FIDT_ASCII = 2, // 8-bit bytes w/ last byte null
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FIDT_SHORT = 3, // 16-bit unsigned integer
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FIDT_LONG = 4, // 32-bit unsigned integer
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FIDT_RATIONAL = 5, // 64-bit unsigned fraction
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FIDT_SBYTE = 6, // 8-bit signed integer
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FIDT_UNDEFINED = 7, // 8-bit untyped data
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FIDT_SSHORT = 8, // 16-bit signed integer
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FIDT_SLONG = 9, // 32-bit signed integer
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FIDT_SRATIONAL = 10, // 64-bit signed fraction
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FIDT_FLOAT = 11, // 32-bit IEEE floating point
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FIDT_DOUBLE = 12, // 64-bit IEEE floating point
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FIDT_IFD = 13, // 32-bit unsigned integer (offset)
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FIDT_PALETTE = 14 // 32-bit RGBQUAD
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Metadata models supported by FreeImage
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public enum FREE_IMAGE_MDMODEL {
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FIMD_COMMENTS = 0, // single comment or keywords
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FIMD_EXIF_MAIN = 1, // Exif-TIFF metadata
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FIMD_EXIF_EXIF = 2, // Exif-specific metadata
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FIMD_EXIF_GPS = 3, // Exif GPS metadata
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FIMD_EXIF_MAKERNOTE = 4, // Exif maker note metadata
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FIMD_EXIF_INTEROP = 5, // Exif interoperability metadata
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FIMD_IPTC = 6, // IPTC/NAA metadata
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FIMD_XMP = 7, // Abobe XMP metadata
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FIMD_GEOTIFF = 8, // GeoTIFF metadata
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FIMD_ANIMATION = 9, // Animation metadata
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FIMD_CUSTOM = 10 // Used to attach other metadata types to a dib
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// Message output function --------------------------------------------------
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public delegate void FreeImage_OutputMessageFunction(FREE_IMAGE_FORMAT format, string msg);
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See the FreeImage PDF documentation for a definition of each function.
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public class FreeImage {
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private const string dllName = "FreeImaged.dll";
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private const string dllName = "FreeImage.dll";
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// Init/Error routines ----------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_Initialise")]
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public static extern void Initialise(bool loadLocalPluginsOnly);
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// alias for Americans :)
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[DllImport(dllName, EntryPoint="FreeImage_Initialise")]
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public static extern void Initialize(bool loadLocalPluginsOnly);
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[DllImport(dllName, EntryPoint="FreeImage_DeInitialise")]
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public static extern void DeInitialise();
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// alias for Americians :)
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[DllImport(dllName, EntryPoint="FreeImage_DeInitialise")]
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public static extern void DeInitialize();
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// Version routines -------------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_GetVersion")]
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public static extern string GetVersion();
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[DllImport(dllName, EntryPoint="FreeImage_GetCopyrightMessage")]
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public static extern string GetCopyrightMessage();
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// Message Output routines ------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_SetOutputMessage")]
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public static extern void SetOutputMessage(FreeImage_OutputMessageFunction omf);
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// Allocate / Clone / Unload routines ---------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_Allocate")]
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public static extern FIBITMAP Allocate(int width, int height,
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int bpp, uint red_mask, uint green_mask, uint blue_mask);
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[DllImport(dllName, EntryPoint="FreeImage_AllocateT")]
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public static extern FIBITMAP AllocateT(FREE_IMAGE_TYPE ftype, int width,
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int height, int bpp, uint red_mask, uint green_mask, uint blue_mask);
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[DllImport(dllName, EntryPoint="FreeImage_Clone")]
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public static extern FIBITMAP Clone(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_Unload")]
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public static extern void Unload(FIBITMAP dib);
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// Load / Save routines -----------------------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_Load")]
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public static extern FIBITMAP Load(FREE_IMAGE_FORMAT format, string filename, int flags);
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// missing FIBITMAP FreeImage_LoadFromHandle(FREE_IMAGE_FORMAT fif,
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// FreeImageIO *io, fi_handle handle, int flags);
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[DllImport(dllName, EntryPoint="FreeImage_Save")]
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public static extern bool Save(FREE_IMAGE_FORMAT format, FIBITMAP dib, string filename, int flags);
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// missing BOOL FreeImage_SaveToHandle(FREE_IMAGE_FORMAT fif, FIBITMAP *dib,
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// FreeImageIO *io, fi_handle handle, int flags);
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// Memory I/O stream routines -----------------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_OpenMemory")]
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public static extern FIMEMORY OpenMemory(IntPtr bits, Int32 size_in_bytes);
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[DllImport(dllName, EntryPoint="FreeImage_CloseMemory")]
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public static extern void CloseMemory(FIMEMORY stream);
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[DllImport(dllName, EntryPoint="FreeImage_LoadFromMemory")]
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public static extern FIBITMAP LoadFromMemory(FREE_IMAGE_FORMAT fif, FIMEMORY stream, int flags);
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[DllImport(dllName, EntryPoint="FreeImage_SaveToMemory")]
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public static extern bool SaveToMemory(FREE_IMAGE_FORMAT fif, FIBITMAP dib, FIMEMORY stream, int flags);
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[DllImport(dllName, EntryPoint="FreeImage_TellMemory")]
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public static extern long TellMemory(FIMEMORY stream, int flags);
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[DllImport(dllName, EntryPoint="FreeImage_SeekMemory")]
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public static extern bool SeekMemory(FIMEMORY stream, long offset, int origin);
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[DllImport(dllName, EntryPoint="FreeImage_AcquireMemory")]
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public static extern long AcquireMemory(FIMEMORY stream, ref IntPtr data, ref int size_in_bytes);
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// Plugin interface -------------------------------------------
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// missing FREE_IMAGE_FORMAT FreeImage_RegisterLocalPlugin(FI_InitProc proc_address,
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// const char *format, const char *description,
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// const char *extension, const char *regexpr);
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// missing FREE_IMAGE_FORMAT FreeImage_RegisterExternalPlugin(const char *path,
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// const char *format, const char *description,
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// const char *extension, const char *regexpr);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFCount")]
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public static extern int GetFIFCount();
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[DllImport(dllName, EntryPoint="FreeImage_SetPluginEnabled")]
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public static extern int SetPluginEnabled(FREE_IMAGE_FORMAT format, bool enabled);
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[DllImport(dllName, EntryPoint="FreeImage_IsPluginEnabled")]
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public static extern int IsPluginEnabled(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFFromFormat")]
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public static extern FREE_IMAGE_FORMAT GetFIFFromFormat(string format);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFFromMime")]
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public static extern FREE_IMAGE_FORMAT GetFIFFromMime(string mime);
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[DllImport(dllName, EntryPoint="FreeImage_GetFormatFromFIF")]
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public static extern string GetFormatFromFIF(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFExtensionList")]
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public static extern string GetFIFExtensionList(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFDescription")]
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public static extern string GetFIFDescription(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFRegExpr")]
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public static extern string GetFIFRegExpr(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_GetFIFFromFilename")]
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public static extern FREE_IMAGE_FORMAT GetFIFFromFilename(string filename);
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[DllImport(dllName, EntryPoint="FreeImage_FIFSupportsReading")]
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public static extern bool FIFSupportsReading(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_FIFSupportsWriting")]
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public static extern bool FIFSupportsWriting(FREE_IMAGE_FORMAT format);
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[DllImport(dllName, EntryPoint="FreeImage_FIFSupportsExportBPP")]
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public static extern bool FIFSupportsExportBPP(FREE_IMAGE_FORMAT format, int bpp);
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[DllImport(dllName, EntryPoint="FreeImage_FIFSupportsExportType")]
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public static extern bool FIFSupportsExportType(FREE_IMAGE_FORMAT format, FREE_IMAGE_TYPE ftype);
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[DllImport(dllName, EntryPoint="FreeImage_FIFSupportsICCProfiles")]
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public static extern bool FIFSupportsICCProfiles(FREE_IMAGE_FORMAT format, FREE_IMAGE_TYPE ftype);
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// Multipage interface ----------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_OpenMultiBitmap")]
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public static extern FIMULTIBITMAP OpenMultiBitmap(
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FREE_IMAGE_FORMAT format, string filename, bool createNew, bool readOnly, bool keepCacheInMemory, int flags);
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[DllImport(dllName, EntryPoint="FreeImage_CloseMultiBitmap")]
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public static extern long CloseMultiBitmap(FIMULTIBITMAP bitmap, int flags);
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[DllImport(dllName, EntryPoint="FreeImage_GetPageCount")]
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public static extern int GetPageCount(FIMULTIBITMAP bitmap);
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[DllImport(dllName, EntryPoint="FreeImage_AppendPage")]
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public static extern void AppendPage(FIMULTIBITMAP bitmap, FIBITMAP data);
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[DllImport(dllName, EntryPoint="FreeImage_InsertPage")]
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public static extern void InsertPage(FIMULTIBITMAP bitmap, int page, FIBITMAP data);
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[DllImport(dllName, EntryPoint="FreeImage_DeletePage")]
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public static extern void DeletePage(FIMULTIBITMAP bitmap, int page);
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[DllImport(dllName, EntryPoint="FreeImage_LockPage")]
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public static extern FIBITMAP LockPage(FIMULTIBITMAP bitmap, int page);
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[DllImport(dllName, EntryPoint="FreeImage_UnlockPage")]
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public static extern void UnlockPage(FIMULTIBITMAP bitmap, FIBITMAP data, bool changed);
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[DllImport(dllName, EntryPoint="FreeImage_MovePage")]
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public static extern bool MovePage(FIMULTIBITMAP bitmap, int target, int source);
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[DllImport(dllName, EntryPoint="FreeImage_GetLockedPageNumbers")]
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public static extern bool GetLockedPageNumbers(FIMULTIBITMAP bitmap, IntPtr pages, IntPtr count);
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// File type request routines ---------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_GetFileType")]
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public static extern FREE_IMAGE_FORMAT GetFileType(string filename, int size);
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// missing FREE_IMAGE_FORMAT FreeImage_GetFileTypeFromHandle(FreeImageIO *io,
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// fi_handle handle, int size);
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[DllImport(dllName, EntryPoint="FreeImage_GetFileTypeFromMemory")]
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public static extern FREE_IMAGE_FORMAT GetFileTypeFromMemory(FIMEMORY stream, int size);
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// Image type request routines --------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_GetImageType")]
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public static extern FREE_IMAGE_TYPE GetImageType(FIBITMAP dib);
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// FreeImage helper routines ------------------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_IsLittleEndian")]
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public static extern bool IsLittleEndian();
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[DllImport(dllName, EntryPoint="FreeImage_LookupX11Color")]
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public static extern bool LookupX11Color(string szColor, ref int red, ref int green, ref int blue);
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[DllImport(dllName, EntryPoint="FreeImage_LookupSVGColor")]
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public static extern bool LookupSVGColor(string szColor, ref int red, ref int green, ref int blue);
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// Pixel access functions -------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_GetBits")]
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public static extern IntPtr GetBits(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_GetScanLine")]
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public static extern IntPtr GetScanLine(FIBITMAP dib, int scanline);
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[DllImport(dllName, EntryPoint="FreeImage_GetPixelIndex")]
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public static extern bool GetPixelIndex(FIBITMAP dib, uint x, uint y, ref byte value);
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[DllImport(dllName, EntryPoint="FreeImage_GetPixelColor")]
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public static extern bool GetPixelColor(FIBITMAP dib, uint x, uint y,
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[Out, MarshalAs(UnmanagedType.LPStruct)]RGBQUAD value);
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[DllImport(dllName, EntryPoint="FreeImage_SetPixelIndex")]
658
public static extern bool SetPixelIndex(FIBITMAP dib, uint x, uint y, ref byte value);
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[DllImport(dllName, EntryPoint="FreeImage_SetPixelColor")]
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public static extern bool SetPixelColor(FIBITMAP dib, uint x, uint y,
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[In, MarshalAs(UnmanagedType.LPStruct)] RGBQUAD value);
664
// DIB info routines --------------------------------------------------------
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[DllImport(dllName, EntryPoint="FreeImage_GetColorsUsed")]
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public static extern uint GetColorsUsed(FIBITMAP dib);
669
[DllImport(dllName, EntryPoint="FreeImage_GetBPP")]
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public static extern uint GetBPP(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_GetWidth")]
673
public static extern uint GetWidth(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_GetHeight")]
676
public static extern uint GetHeight(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_GetLine")]
679
public static extern uint GetLine(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_GetPitch")]
682
public static extern uint GetPitch(FIBITMAP dib);
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[DllImport(dllName, EntryPoint="FreeImage_GetDIBSize")]
685
public static extern uint GetDIBSize(FIBITMAP dib);
688
Returns a pointer to the bitmap�s palette. If the bitmap doesn�t have a palette
689
(i.e. when the pixel bit depth is greater than 8), this function returns NULL.
690
@param dib Bitmap to get the palette for.
691
@return Pointer to the start of the palette data.
693
[DllImport(dllName, EntryPoint="FreeImage_GetPalette")]
694
private static extern UIntPtr GetRawPalette(FIBITMAP dib);
697
Get a deep copy of the image palette.
698
@param bitmap Pointer to a loaded image.
699
@return Array or RGBQUAD values representing the image palette.
701
public static unsafe RGBQUAD [] GetPaletteCopy(FIBITMAP dib) {
702
RGBQUAD [] paletteCopy = new FreeImageAPI.RGBQUAD[256];
704
// Only interested in indexed images.
705
if (GetBPP(dib) <= 8) {
706
UIntPtr palette = GetRawPalette(dib);
707
byte * ptr = (byte *)(void*)palette;
708
for (int q = 0; q < 256; q++) {
709
paletteCopy[q] = new FreeImageAPI.RGBQUAD();
710
paletteCopy[q].rgbBlue = (byte)*ptr;
712
paletteCopy[q].rgbGreen = (byte)*ptr;
714
paletteCopy[q].rgbRed = (byte)*ptr;
716
paletteCopy[q].rgbReserved = (byte)*ptr;
724
[DllImport(dllName, EntryPoint="FreeImage_GetDotsPerMeterX")]
725
public static extern uint GetDotsPerMeterX(FIBITMAP dib);
727
[DllImport(dllName, EntryPoint="FreeImage_GetDotsPerMeterY")]
728
public static extern uint GetDotsPerMeterY(FIBITMAP dib);
730
[DllImport(dllName, EntryPoint="FreeImage_SetDotsPerMeterX")]
731
public static extern void SetDotsPerMeterX(FIBITMAP dib, uint res);
733
[DllImport(dllName, EntryPoint="FreeImage_SetDotsPerMeterY")]
734
public static extern void SetDotsPerMeterY(FIBITMAP dib, uint res);
736
[DllImport(dllName, EntryPoint = "FreeImage_GetInfoHeader")]
737
public static extern IntPtr FreeImage_GetInfoHeader(FIBITMAP dib);
739
[DllImport(dllName, EntryPoint = "FreeImage_GetInfo")]
740
public static extern IntPtr FreeImage_GetInfo(FIBITMAP dib);
742
[DllImport(dllName, EntryPoint="FreeImage_GetColorType")]
743
public static extern FREE_IMAGE_COLOR_TYPE GetColorType(FIBITMAP dib);
745
[DllImport(dllName, EntryPoint="FreeImage_GetRedMask")]
746
public static extern uint GetRedMask(FIBITMAP dib);
748
[DllImport(dllName, EntryPoint="FreeImage_GetGreenMask")]
749
public static extern uint GetGreenMask(FIBITMAP dib);
751
[DllImport(dllName, EntryPoint="FreeImage_GetBlueMask")]
752
public static extern uint GetBlueMask(FIBITMAP dib);
754
[DllImport(dllName, EntryPoint="FreeImage_GetTransparencyCount")]
755
public static extern uint GetTransparencyCount(FIBITMAP dib);
757
[DllImport(dllName, EntryPoint="FreeImage_GetTransparencyTable")]
758
public static extern IntPtr GetTransparencyTable(FIBITMAP dib);
760
[DllImport(dllName, EntryPoint="FreeImage_SetTransparent")]
761
public static extern void SetTransparent(FIBITMAP dib, bool enabled);
763
[DllImport(dllName, EntryPoint="FreeImage_SetTransparencyTable")]
764
public static extern void SetTransparencyTable(FIBITMAP dib, IntPtr table, int count);
766
[DllImport(dllName, EntryPoint="FreeImage_IsTransparent")]
767
public static extern bool IsTransparent(FIBITMAP dib);
769
[DllImport(dllName, EntryPoint="FreeImage_HasBackgroundColor")]
770
public static extern bool HasBackgroundColor(FIBITMAP dib);
772
[DllImport(dllName, EntryPoint="FreeImage_GetBackgroundColor")]
773
public static extern bool GetBackgroundColor(FIBITMAP dib,
774
[Out, MarshalAs(UnmanagedType.LPStruct)]RGBQUAD bkcolor);
776
[DllImport(dllName, EntryPoint="FreeImage_SetBackgroundColor")]
777
public static extern bool SetBackgroundColor(FIBITMAP dib,
778
[In, MarshalAs(UnmanagedType.LPStruct)]RGBQUAD bkcolor);
780
// ICC profile routines -----------------------------------------------------
782
[DllImport(dllName,EntryPoint="FreeImage_DestroyICCProfile")]
783
public static extern void DestroyICCProfile(FIBITMAP dib);
785
[DllImport(dllName,EntryPoint="FreeImage_GetICCProfile")]
786
public static extern FIICCPROFILE GetICCProfile(FIBITMAP dib);
788
[DllImport(dllName,EntryPoint="FreeImage_CreateICCProfile")]
789
public static extern FIICCPROFILE CreateICCProfile(FIBITMAP dib, IntPtr data, uint size);
791
// Smart conversion routines ------------------------------------------------
793
[DllImport(dllName, EntryPoint="FreeImage_ConvertTo4Bits")]
794
public static extern FIBITMAP ConvertTo4Bits(FIBITMAP dib);
796
[DllImport(dllName, EntryPoint="FreeImage_ConvertTo8Bits")]
797
public static extern FIBITMAP ConvertTo8Bits(FIBITMAP dib);
799
[DllImport(dllName, EntryPoint="FreeImage_ConvertTo16Bits555")]
800
public static extern FIBITMAP ConvertTo16Bits555(FIBITMAP dib);
802
[DllImport(dllName, EntryPoint="FreeImage_ConvertTo16Bits565")]
803
public static extern FIBITMAP ConvertTo16Bits565(FIBITMAP dib);
805
[DllImport(dllName, EntryPoint="FreeImage_ConvertTo24Bits")]
806
public static extern FIBITMAP ConvertTo24Bits(FIBITMAP dib);
808
[DllImport(dllName, EntryPoint="FreeImage_ConvertTo32Bits")]
809
public static extern FIBITMAP ConvertTo32Bits(FIBITMAP dib);
811
[DllImport(dllName, EntryPoint="FreeImage_ColorQuantize")]
812
public static extern FIBITMAP ColorQuantize(FIBITMAP dib, FREE_IMAGE_QUANTIZE quantize);
814
[DllImport(dllName, EntryPoint="FreeImage_Threshold")]
815
public static extern FIBITMAP Threshold(FIBITMAP dib, uint T);
817
[DllImport(dllName, EntryPoint="FreeImage_Dither")]
818
public static extern FIBITMAP Dither(FIBITMAP dib, FREE_IMAGE_DITHER algorithm);
820
[DllImport(dllName, EntryPoint="FreeImage_ConvertFromRawBits")]
821
public static extern FIBITMAP ConvertFromRawBits(byte[] bits, int width, int height,
822
int pitch, uint bpp, uint redMask, uint greenMask, uint blueMask, bool topDown);
824
[DllImport(dllName, EntryPoint="FreeImage_ConvertToRawBits")]
825
public static extern void ConvertToRawBits(IntPtr bits, FIBITMAP dib, int pitch,
826
uint bpp, uint redMask, uint greenMask, uint blueMask, bool topDown);
828
[DllImport(dllName, EntryPoint="FreeImage_ConvertToStandardType")]
829
public static extern FIBITMAP ConvertToStandardType(FIBITMAP dib, FREE_IMAGE_TYPE dst_type, bool scale_linear);
831
[DllImport(dllName, EntryPoint="FreeImage_ConvertToType")]
832
public static extern FIBITMAP ConvertToType(FIBITMAP dib, FREE_IMAGE_TYPE dst_type, bool scale_linear);
834
[DllImport(dllName, EntryPoint="FreeImage_ConvertToRGBF")]
835
public static extern FIBITMAP ConvertToRGBF(FIBITMAP dib);
837
[DllImport(dllName, EntryPoint="FreeImage_ToneMapping")]
838
public static extern FIBITMAP ToneMapping(FIBITMAP dib, FREE_IMAGE_TMO tmo, double first_param, double second_param);
840
[DllImport(dllName, EntryPoint="FreeImage_TmoDrago03")]
841
public static extern FIBITMAP TmoDrago03(FIBITMAP dib, double gamma, double exposure);
843
[DllImport(dllName, EntryPoint="FreeImage_TmoReinhard05")]
844
public static extern FIBITMAP TmoReinhard05(FIBITMAP dib, double intensity, double contrast);
846
// ZLib interface -----------------------------------------------------------
848
[DllImport(dllName, EntryPoint="FreeImage_ZLibCompress")]
849
public static extern Int32 ZLibCompress(IntPtr target, Int32 target_size, IntPtr source, Int32 source_size);
851
[DllImport(dllName, EntryPoint="FreeImage_ZLibUncompress")]
852
public static extern Int32 ZLibUncompress(IntPtr target, Int32 target_size, IntPtr source, Int32 source_size);
854
[DllImport(dllName, EntryPoint="FreeImage_ZLibGZip")]
855
public static extern Int32 ZLibGZip(IntPtr target, Int32 target_size, IntPtr source, Int32 source_size);
857
[DllImport(dllName, EntryPoint="FreeImage_ZLibGUnzip")]
858
public static extern Int32 ZLibGUnzip(IntPtr target, Int32 target_size, IntPtr source, Int32 source_size);
860
[DllImport(dllName, EntryPoint="FreeImage_ZLibCRC32")]
861
public static extern Int32 ZLibCRC32(Int32 crc, IntPtr source, Int32 source_size);
863
// --------------------------------------------------------------------------
864
// Image manipulation toolkit -----------------------------------------------
865
// --------------------------------------------------------------------------
867
// rotation and flipping
869
[DllImport(dllName, EntryPoint="FreeImage_RotateClassic")]
870
public static extern FIBITMAP RotateClassic(FIBITMAP dib, double angle);
872
[DllImport(dllName, EntryPoint="FreeImage_RotateEx")]
873
public static extern FIBITMAP RotateEx(
874
FIBITMAP dib, double angle, double xShift, double yShift, double xOrigin, double yOrigin, bool useMask);
876
[DllImport(dllName, EntryPoint="FreeImage_FlipHorizontal")]
877
public static extern bool FlipHorizontal(FIBITMAP dib);
879
[DllImport(dllName, EntryPoint="FreeImage_FlipVertical")]
880
public static extern bool FlipVertical(FIBITMAP dib);
882
[DllImport(dllName, EntryPoint="FreeImage_JPEGTransform")]
883
public static extern bool JPEGTransform(string src_file, string dst_file, FREE_IMAGE_JPEG_OPERATION operation, bool perfect);
885
// upsampling / downsampling
887
[DllImport(dllName, EntryPoint="FreeImage_Rescale")]
888
public static extern FIBITMAP Rescale(FIBITMAP dib, int dst_width, int dst_height, FREE_IMAGE_FILTER filter);
890
// color manipulation routines (point operations)
892
[DllImport(dllName, EntryPoint="FreeImage_AdjustCurve")]
893
public static extern bool AdjustCurve(FIBITMAP dib, byte[] lut, FREE_IMAGE_COLOR_CHANNEL channel);
895
[DllImport(dllName, EntryPoint="FreeImage_AdjustGamma")]
896
public static extern bool AdjustGamma(FIBITMAP dib, double gamma);
898
[DllImport(dllName, EntryPoint="FreeImage_AdjustBrightness")]
899
public static extern bool AdjustBrightness(FIBITMAP dib, double percentage);
901
[DllImport(dllName, EntryPoint="FreeImage_AdjustContrast")]
902
public static extern bool AdjustContrast(FIBITMAP dib, double percentage);
904
[DllImport(dllName, EntryPoint="FreeImage_Invert")]
905
public static extern bool Invert(FIBITMAP dib);
907
[DllImport(dllName, EntryPoint="FreeImage_GetHistogram")]
908
public static extern bool GetHistogram(FIBITMAP dib, IntPtr histo, FREE_IMAGE_COLOR_CHANNEL channel);
910
// channel processing routines
912
[DllImport(dllName, EntryPoint="FreeImage_GetChannel")]
913
public static extern FIBITMAP GetChannel(FIBITMAP dib, FREE_IMAGE_COLOR_CHANNEL channel);
915
[DllImport(dllName, EntryPoint="FreeImage_SetChannel")]
916
public static extern bool SetChannel(FIBITMAP dib, FIBITMAP dib8, FREE_IMAGE_COLOR_CHANNEL channel);
918
// copy / paste / composite routines
920
[DllImport(dllName, EntryPoint="FreeImage_Copy")]
921
public static extern FIBITMAP Copy(FIBITMAP dib, int left, int top, int right, int bottom);
923
[DllImport(dllName, EntryPoint="FreeImage_Paste")]
924
public static extern bool Paste(FIBITMAP dst, FIBITMAP src, int left, int top, int alpha);
926
[DllImport(dllName, EntryPoint="FreeImage_Composite")]
927
public static extern FIBITMAP Composite(FIBITMAP fg, bool useFileBkg,
928
[In, MarshalAs(UnmanagedType.LPStruct)] RGBQUAD appBkColor, FIBITMAP bg);
added
removed
Wrapper/FreeImage.NET/src/FreeImage.cs
