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-rw-r--r--plugins/AdvaImg/src/FreeImage/Conversion.cpp513
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diff --git a/plugins/AdvaImg/src/FreeImage/Conversion.cpp b/plugins/AdvaImg/src/FreeImage/Conversion.cpp
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+// ==========================================================
+// Bitmap conversion routines
+//
+// Design and implementation by
+// - Floris van den Berg (flvdberg@wxs.nl)
+// - Hervé Drolon (drolon@infonie.fr)
+// - Jani Kajala (janik@remedy.fi)
+// - Mihail Naydenov (mnaydenov@users.sourceforge.net)
+//
+// This file is part of FreeImage 3
+//
+// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
+// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
+// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
+// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
+// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
+// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
+// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
+// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
+// THIS DISCLAIMER.
+//
+// Use at your own risk!
+// ==========================================================
+
+#include "FreeImage.h"
+#include "Utilities.h"
+#include "Quantizers.h"
+
+// ----------------------------------------------------------
+
+#define CONVERT(from, to) case to : FreeImage_ConvertLine##from##To##to(bits, scanline, FreeImage_GetWidth(dib)); break;
+#define CONVERTWITHPALETTE(from, to) case to : FreeImage_ConvertLine##from##To##to(bits, scanline, FreeImage_GetWidth(dib), FreeImage_GetPalette(dib)); break;
+
+#define CONVERTTO16(from) \
+ case 16 : \
+ if ((red_mask == FI16_555_RED_MASK) && (green_mask == FI16_555_GREEN_MASK) && (blue_mask == FI16_555_BLUE_MASK)) { \
+ FreeImage_ConvertLine##from##To16_555(bits, scanline, FreeImage_GetWidth(dib)); \
+ } else { \
+ FreeImage_ConvertLine##from##To16_565(bits, scanline, FreeImage_GetWidth(dib)); \
+ } \
+ break;
+
+#define CONVERTTO16WITHPALETTE(from) \
+ case 16 : \
+ if ((red_mask == FI16_555_RED_MASK) && (green_mask == FI16_555_GREEN_MASK) && (blue_mask == FI16_555_BLUE_MASK)) { \
+ FreeImage_ConvertLine##from##To16_555(bits, scanline, FreeImage_GetWidth(dib), FreeImage_GetPalette(dib)); \
+ } else { \
+ FreeImage_ConvertLine##from##To16_565(bits, scanline, FreeImage_GetWidth(dib), FreeImage_GetPalette(dib)); \
+ } \
+ break;
+
+// ==========================================================
+// Utility functions declared in Utilities.h
+
+BOOL SwapRedBlue32(FIBITMAP* dib) {
+ if(FreeImage_GetImageType(dib) != FIT_BITMAP) {
+ return FALSE;
+ }
+
+ const unsigned bytesperpixel = FreeImage_GetBPP(dib) / 8;
+ if(bytesperpixel > 4 || bytesperpixel < 3) {
+ return FALSE;
+ }
+
+ const unsigned height = FreeImage_GetHeight(dib);
+ const unsigned pitch = FreeImage_GetPitch(dib);
+ const unsigned lineSize = FreeImage_GetLine(dib);
+
+ BYTE* line = FreeImage_GetBits(dib);
+ for(unsigned y = 0; y < height; ++y, line += pitch) {
+ for(BYTE* pixel = line; pixel < line + lineSize ; pixel += bytesperpixel) {
+ INPLACESWAP(pixel[0], pixel[2]);
+ }
+ }
+
+ return TRUE;
+}
+
+// ----------------------------------------------------------
+
+static inline void
+assignRGB(WORD r, WORD g, WORD b, WORD* out) {
+ out[0] = r;
+ out[1] = g;
+ out[2] = b;
+}
+
+static inline void
+assignRGB(BYTE r, BYTE g, BYTE b, BYTE* out) {
+ out[FI_RGBA_RED] = r;
+ out[FI_RGBA_GREEN] = g;
+ out[FI_RGBA_BLUE] = b;
+}
+
+/**
+CMYK -> CMY -> RGB conversion from http://www.easyrgb.com/
+
+CMYK to CMY [0-1]: C,M,Y * (1 - K) + K
+CMY to RGB [0-1]: (1 - C,M,Y)
+
+=> R,G,B = (1 - C,M,Y) * (1 - K)
+mapped to [0-MAX_VAL]:
+(MAX_VAL - C,M,Y) * (MAX_VAL - K) / MAX_VAL
+*/
+template <class T>
+static inline void
+CMYKToRGB(T C, T M, T Y, T K, T* out) {
+ unsigned max_val = std::numeric_limits<T>::max();
+
+ unsigned r = (max_val - C) * (max_val - K) / max_val;
+ unsigned g = (max_val - M) * (max_val - K) / max_val;
+ unsigned b = (max_val - Y) * (max_val - K) / max_val;
+
+ // clamp values to [0..max_val]
+ T red = (T)CLAMP(r, (unsigned)0, max_val);
+ T green = (T)CLAMP(g, (unsigned)0, max_val);
+ T blue = (T)CLAMP(b, (unsigned)0, max_val);
+
+ assignRGB(red, green, blue, out);
+}
+
+template <class T>
+static void
+_convertCMYKtoRGBA(unsigned width, unsigned height, BYTE* line_start, unsigned pitch, unsigned samplesperpixel) {
+ const BOOL hasBlack = (samplesperpixel > 3) ? TRUE : FALSE;
+ const T MAX_VAL = std::numeric_limits<T>::max();
+
+ T K = 0;
+ for(unsigned y = 0; y < height; y++) {
+ T *line = (T*)line_start;
+
+ for(unsigned x = 0; x < width; x++) {
+ if(hasBlack) {
+ K = line[FI_RGBA_ALPHA];
+ line[FI_RGBA_ALPHA] = MAX_VAL; // TODO write the first extra channel as alpha!
+ }
+
+ CMYKToRGB<T>(line[0], line[1], line[2], K, line);
+
+ line += samplesperpixel;
+ }
+ line_start += pitch;
+ }
+}
+
+BOOL
+ConvertCMYKtoRGBA(FIBITMAP* dib) {
+ if (!FreeImage_HasPixels(dib)) {
+ return FALSE;
+ }
+
+ const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
+ const unsigned bytesperpixel = FreeImage_GetBPP(dib)/8;
+
+ unsigned channelSize = 1;
+ if (image_type == FIT_RGBA16 || image_type == FIT_RGB16) {
+ channelSize = sizeof(WORD);
+ } else if (!(image_type == FIT_BITMAP && (bytesperpixel > 2))) {
+ return FALSE;
+ }
+
+ const unsigned width = FreeImage_GetWidth(dib);
+ const unsigned height = FreeImage_GetHeight(dib);
+ BYTE *line_start = FreeImage_GetScanLine(dib, 0);
+ const unsigned pitch = FreeImage_GetPitch(dib);
+
+ unsigned samplesperpixel = FreeImage_GetLine(dib) / width / channelSize;
+
+ if(channelSize == sizeof(WORD)) {
+ _convertCMYKtoRGBA<WORD>(width, height, line_start, pitch, samplesperpixel);
+ } else {
+ _convertCMYKtoRGBA<BYTE>(width, height, line_start, pitch, samplesperpixel);
+ }
+
+ return TRUE;
+}
+
+// ----------------------------------------------------------
+
+/**
+CIELab -> XYZ conversion from http://www.easyrgb.com/
+*/
+static void
+CIELabToXYZ(float L, float a, float b, float *X, float *Y, float *Z) {
+ float pow_3;
+
+ // CIELab -> XYZ conversion
+ // ------------------------
+ float var_Y = (L + 16.F ) / 116.F;
+ float var_X = a / 500.F + var_Y;
+ float var_Z = var_Y - b / 200.F;
+
+ pow_3 = powf(var_Y, 3);
+ if(pow_3 > 0.008856F) {
+ var_Y = pow_3;
+ } else {
+ var_Y = ( var_Y - 16.F / 116.F ) / 7.787F;
+ }
+ pow_3 = powf(var_X, 3);
+ if(pow_3 > 0.008856F) {
+ var_X = pow_3;
+ } else {
+ var_X = ( var_X - 16.F / 116.F ) / 7.787F;
+ }
+ pow_3 = powf(var_Z, 3);
+ if(pow_3 > 0.008856F) {
+ var_Z = pow_3;
+ } else {
+ var_Z = ( var_Z - 16.F / 116.F ) / 7.787F;
+ }
+
+ static const float ref_X = 95.047F;
+ static const float ref_Y = 100.000F;
+ static const float ref_Z = 108.883F;
+
+ *X = ref_X * var_X; // ref_X = 95.047 (Observer= 2°, Illuminant= D65)
+ *Y = ref_Y * var_Y; // ref_Y = 100.000
+ *Z = ref_Z * var_Z; // ref_Z = 108.883
+}
+
+/**
+XYZ -> RGB conversion from http://www.easyrgb.com/
+*/
+static void
+XYZToRGB(float X, float Y, float Z, float *R, float *G, float *B) {
+ float var_X = X / 100; // X from 0 to 95.047 (Observer = 2°, Illuminant = D65)
+ float var_Y = Y / 100; // Y from 0 to 100.000
+ float var_Z = Z / 100; // Z from 0 to 108.883
+
+ float var_R = var_X * 3.2406F + var_Y * -1.5372F + var_Z * -0.4986F;
+ float var_G = var_X * -0.9689F + var_Y * 1.8758F + var_Z * 0.0415F;
+ float var_B = var_X * 0.0557F + var_Y * -0.2040F + var_Z * 1.0570F;
+
+ float exponent = 1.F / 2.4F;
+
+ if(var_R > 0.0031308F) {
+ var_R = 1.055F * powf(var_R, exponent) - 0.055F;
+ } else {
+ var_R = 12.92F * var_R;
+ }
+ if(var_G > 0.0031308F) {
+ var_G = 1.055F * powf(var_G, exponent) - 0.055F;
+ } else {
+ var_G = 12.92F * var_G;
+ }
+ if(var_B > 0.0031308F) {
+ var_B = 1.055F * powf(var_B, exponent) - 0.055F;
+ } else {
+ var_B = 12.92F * var_B;
+ }
+
+ *R = var_R;
+ *G = var_G;
+ *B = var_B;
+}
+
+template<class T>
+static void
+CIELabToRGB(float L, float a, float b, T *rgb) {
+ float X, Y, Z;
+ float R, G, B;
+ const float max_val = std::numeric_limits<T>::max();
+
+ CIELabToXYZ(L, a, b, &X, &Y, &Z);
+ XYZToRGB(X, Y, Z, &R, &G, &B);
+
+ // clamp values to [0..max_val]
+ T red = (T)CLAMP(R * max_val, 0.0F, max_val);
+ T green = (T)CLAMP(G * max_val, 0.0F, max_val);
+ T blue = (T)CLAMP(B * max_val, 0.0F, max_val);
+
+ assignRGB(red, green, blue, rgb);
+}
+
+template<class T>
+static void
+_convertLABtoRGB(unsigned width, unsigned height, BYTE* line_start, unsigned pitch, unsigned samplesperpixel) {
+ const unsigned max_val = std::numeric_limits<T>::max();
+ const float sL = 100.F / max_val;
+ const float sa = 256.F / max_val;
+ const float sb = 256.F / max_val;
+
+ for(unsigned y = 0; y < height; y++) {
+ T *line = (T*)line_start;
+
+ for(unsigned x = 0; x < width; x++) {
+ CIELabToRGB(line[0]* sL, line[1]* sa - 128.F, line[2]* sb - 128.F, line);
+
+ line += samplesperpixel;
+ }
+ line_start += pitch;
+ }
+}
+
+BOOL
+ConvertLABtoRGB(FIBITMAP* dib) {
+ if (!FreeImage_HasPixels(dib)) {
+ return FALSE;
+ }
+
+ const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
+ const unsigned bytesperpixel = FreeImage_GetBPP(dib) / 8;
+
+ unsigned channelSize = 1;
+ if (image_type == FIT_RGBA16 || image_type == FIT_RGB16) {
+ channelSize = sizeof(WORD);
+ } else if (!(image_type == FIT_BITMAP && (bytesperpixel > 2))) {
+ return FALSE;
+ }
+
+ const unsigned width = FreeImage_GetWidth(dib);
+ const unsigned height = FreeImage_GetHeight(dib);
+ BYTE *line_start = FreeImage_GetScanLine(dib, 0);
+ const unsigned pitch = FreeImage_GetPitch(dib);
+
+ unsigned samplesperpixel = FreeImage_GetLine(dib) / width / channelSize;
+
+ if(channelSize == 1) {
+ _convertLABtoRGB<BYTE>(width, height, line_start, pitch, samplesperpixel);
+ }
+ else {
+ _convertLABtoRGB<WORD>(width, height, line_start, pitch, samplesperpixel);
+ }
+
+ return TRUE;
+}
+
+// ----------------------------------------------------------
+
+FIBITMAP*
+RemoveAlphaChannel(FIBITMAP* src) {
+
+ if (!FreeImage_HasPixels(src)) {
+ return NULL;
+ }
+
+ const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(src);
+
+ switch(image_type) {
+ case FIT_BITMAP:
+ if(FreeImage_GetBPP(src) == 32) {
+ // convert to 24-bit
+ return FreeImage_ConvertTo24Bits(src);
+ }
+ break;
+ case FIT_RGBA16:
+ // convert to RGB16
+ return FreeImage_ConvertToRGB16(src);
+ case FIT_RGBAF:
+ // convert to RGBF
+ return FreeImage_ConvertToRGBF(src);
+ default:
+ // unsupported image type
+ return NULL;
+ }
+
+ return NULL;
+}
+
+
+// ==========================================================
+
+FIBITMAP * DLL_CALLCONV
+FreeImage_ColorQuantize(FIBITMAP *dib, FREE_IMAGE_QUANTIZE quantize) {
+ return FreeImage_ColorQuantizeEx(dib, quantize);
+}
+
+FIBITMAP * DLL_CALLCONV
+FreeImage_ColorQuantizeEx(FIBITMAP *dib, FREE_IMAGE_QUANTIZE quantize, int PaletteSize, int ReserveSize, RGBQUAD *ReservePalette) {
+ if ( PaletteSize < 2 ) PaletteSize = 2;
+ if ( PaletteSize > 256 ) PaletteSize = 256;
+ if ( ReserveSize < 0 ) ReserveSize = 0;
+ if ( ReserveSize > PaletteSize ) ReserveSize = PaletteSize;
+ if (FreeImage_HasPixels(dib)) {
+ if (FreeImage_GetBPP(dib) == 24) {
+ switch(quantize) {
+ case FIQ_WUQUANT :
+ {
+ try {
+ WuQuantizer Q (dib);
+ FIBITMAP *dst = Q.Quantize(PaletteSize, ReserveSize, ReservePalette);
+ if(dst) {
+ // copy metadata from src to dst
+ FreeImage_CloneMetadata(dst, dib);
+ }
+ return dst;
+ } catch (const char *) {
+ return NULL;
+ }
+ }
+ case FIQ_NNQUANT :
+ {
+ // sampling factor in range 1..30.
+ // 1 => slower (but better), 30 => faster. Default value is 1
+ const int sampling = 1;
+
+ NNQuantizer Q(PaletteSize);
+ FIBITMAP *dst = Q.Quantize(dib, ReserveSize, ReservePalette, sampling);
+ if(dst) {
+ // copy metadata from src to dst
+ FreeImage_CloneMetadata(dst, dib);
+ }
+ return dst;
+ }
+ }
+ }
+ }
+
+ return NULL;
+}
+
+// ==========================================================
+
+FIBITMAP * DLL_CALLCONV
+FreeImage_ConvertFromRawBits(BYTE *bits, int width, int height, int pitch, unsigned bpp, unsigned red_mask, unsigned green_mask, unsigned blue_mask, BOOL topdown) {
+ FIBITMAP *dib = FreeImage_Allocate(width, height, bpp, red_mask, green_mask, blue_mask);
+
+ if (dib != NULL) {
+ if (topdown) {
+ for (int i = height - 1; i >= 0; --i) {
+ memcpy(FreeImage_GetScanLine(dib, i), bits, FreeImage_GetLine(dib));
+ bits += pitch;
+ }
+ } else {
+ for (int i = 0; i < height; ++i) {
+ memcpy(FreeImage_GetScanLine(dib, i), bits, FreeImage_GetLine(dib));
+ bits += pitch;
+ }
+ }
+ }
+
+ return dib;
+}
+
+void DLL_CALLCONV
+FreeImage_ConvertToRawBits(BYTE *bits, FIBITMAP *dib, int pitch, unsigned bpp, unsigned red_mask, unsigned green_mask, unsigned blue_mask, BOOL topdown) {
+ if (FreeImage_HasPixels(dib) && (bits != NULL)) {
+ for (unsigned i = 0; i < FreeImage_GetHeight(dib); ++i) {
+ BYTE *scanline = FreeImage_GetScanLine(dib, topdown ? (FreeImage_GetHeight(dib) - i - 1) : i);
+
+ if ((bpp == 16) && (FreeImage_GetBPP(dib) == 16)) {
+ // convert 555 to 565 or vice versa
+
+ if ((red_mask == FI16_555_RED_MASK) && (green_mask == FI16_555_GREEN_MASK) && (blue_mask == FI16_555_BLUE_MASK)) {
+ if ((FreeImage_GetRedMask(dib) == FI16_565_RED_MASK) && (FreeImage_GetGreenMask(dib) == FI16_565_GREEN_MASK) && (FreeImage_GetBlueMask(dib) == FI16_565_BLUE_MASK)) {
+ FreeImage_ConvertLine16_565_To16_555(bits, scanline, FreeImage_GetWidth(dib));
+ } else {
+ memcpy(bits, scanline, FreeImage_GetLine(dib));
+ }
+ } else {
+ if ((FreeImage_GetRedMask(dib) == FI16_555_RED_MASK) && (FreeImage_GetGreenMask(dib) == FI16_555_GREEN_MASK) && (FreeImage_GetBlueMask(dib) == FI16_555_BLUE_MASK)) {
+ FreeImage_ConvertLine16_555_To16_565(bits, scanline, FreeImage_GetWidth(dib));
+ } else {
+ memcpy(bits, scanline, FreeImage_GetLine(dib));
+ }
+ }
+ } else if (FreeImage_GetBPP(dib) != bpp) {
+ switch(FreeImage_GetBPP(dib)) {
+ case 1 :
+ switch(bpp) {
+ CONVERT(1, 8)
+ CONVERTTO16WITHPALETTE(1)
+ CONVERTWITHPALETTE(1, 24)
+ CONVERTWITHPALETTE(1, 32)
+ }
+
+ break;
+
+ case 4 :
+ switch(bpp) {
+ CONVERT(4, 8)
+ CONVERTTO16WITHPALETTE(4)
+ CONVERTWITHPALETTE(4, 24)
+ CONVERTWITHPALETTE(4, 32)
+ }
+
+ break;
+
+ case 8 :
+ switch(bpp) {
+ CONVERTTO16WITHPALETTE(8)
+ CONVERTWITHPALETTE(8, 24)
+ CONVERTWITHPALETTE(8, 32)
+ }
+
+ break;
+
+ case 24 :
+ switch(bpp) {
+ CONVERT(24, 8)
+ CONVERTTO16(24)
+ CONVERT(24, 32)
+ }
+
+ break;
+
+ case 32 :
+ switch(bpp) {
+ CONVERT(32, 8)
+ CONVERTTO16(32)
+ CONVERT(32, 24)
+ }
+
+ break;
+ }
+ } else {
+ memcpy(bits, scanline, FreeImage_GetLine(dib));
+ }
+
+ bits += pitch;
+ }
+ }
+}
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