diff options
Diffstat (limited to 'plugins/AdvaImg/src/FreeImage/Conversion32.cpp')
-rw-r--r-- | plugins/AdvaImg/src/FreeImage/Conversion32.cpp | 690 |
1 files changed, 345 insertions, 345 deletions
diff --git a/plugins/AdvaImg/src/FreeImage/Conversion32.cpp b/plugins/AdvaImg/src/FreeImage/Conversion32.cpp index b8bd518471..4874dcfaca 100644 --- a/plugins/AdvaImg/src/FreeImage/Conversion32.cpp +++ b/plugins/AdvaImg/src/FreeImage/Conversion32.cpp @@ -1,345 +1,345 @@ -// ==========================================================
-// Bitmap conversion routines
-//
-// Design and implementation by
-// - Floris van den Berg (flvdberg@wxs.nl)
-// - Hervé Drolon (drolon@infonie.fr)
-// - Jani Kajala (janik@remedy.fi)
-// - Detlev Vendt (detlev.vendt@brillit.de)
-//
-// 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"
-
-// ----------------------------------------------------------
-// internal conversions X to 32 bits
-// ----------------------------------------------------------
-
-void DLL_CALLCONV
-FreeImage_ConvertLine1To32(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) {
- for (int cols = 0; cols < width_in_pixels; cols++) {
- int index = (source[cols>>3] & (0x80 >> (cols & 0x07))) != 0 ? 1 : 0;
-
- target[FI_RGBA_BLUE] = palette[index].rgbBlue;
- target[FI_RGBA_GREEN] = palette[index].rgbGreen;
- target[FI_RGBA_RED] = palette[index].rgbRed;
- target[FI_RGBA_ALPHA] = 0xFF;
- target += 4;
- }
-}
-
-void DLL_CALLCONV
-FreeImage_ConvertLine4To32(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) {
- BOOL low_nibble = FALSE;
- int x = 0;
-
- for (int cols = 0 ; cols < width_in_pixels ; ++cols) {
- if (low_nibble) {
- target[FI_RGBA_BLUE] = palette[LOWNIBBLE(source[x])].rgbBlue;
- target[FI_RGBA_GREEN] = palette[LOWNIBBLE(source[x])].rgbGreen;
- target[FI_RGBA_RED] = palette[LOWNIBBLE(source[x])].rgbRed;
-
- x++;
- } else {
- target[FI_RGBA_BLUE] = palette[HINIBBLE(source[x]) >> 4].rgbBlue;
- target[FI_RGBA_GREEN] = palette[HINIBBLE(source[x]) >> 4].rgbGreen;
- target[FI_RGBA_RED] = palette[HINIBBLE(source[x]) >> 4].rgbRed;
- }
-
- low_nibble = !low_nibble;
-
- target[FI_RGBA_ALPHA] = 0xFF;
- target += 4;
- }
-}
-
-void DLL_CALLCONV
-FreeImage_ConvertLine8To32(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) {
- for (int cols = 0; cols < width_in_pixels; cols++) {
- target[FI_RGBA_BLUE] = palette[source[cols]].rgbBlue;
- target[FI_RGBA_GREEN] = palette[source[cols]].rgbGreen;
- target[FI_RGBA_RED] = palette[source[cols]].rgbRed;
- target[FI_RGBA_ALPHA] = 0xFF;
- target += 4;
- }
-}
-
-void DLL_CALLCONV
-FreeImage_ConvertLine16To32_555(BYTE *target, BYTE *source, int width_in_pixels) {
- WORD *bits = (WORD *)source;
-
- for (int cols = 0; cols < width_in_pixels; cols++) {
- target[FI_RGBA_RED] = (BYTE)((((bits[cols] & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) * 0xFF) / 0x1F);
- target[FI_RGBA_GREEN] = (BYTE)((((bits[cols] & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) * 0xFF) / 0x1F);
- target[FI_RGBA_BLUE] = (BYTE)((((bits[cols] & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) * 0xFF) / 0x1F);
- target[FI_RGBA_ALPHA] = 0xFF;
- target += 4;
- }
-}
-
-void DLL_CALLCONV
-FreeImage_ConvertLine16To32_565(BYTE *target, BYTE *source, int width_in_pixels) {
- WORD *bits = (WORD *)source;
-
- for (int cols = 0; cols < width_in_pixels; cols++) {
- target[FI_RGBA_RED] = (BYTE)((((bits[cols] & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) * 0xFF) / 0x1F);
- target[FI_RGBA_GREEN] = (BYTE)((((bits[cols] & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) * 0xFF) / 0x3F);
- target[FI_RGBA_BLUE] = (BYTE)((((bits[cols] & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) * 0xFF) / 0x1F);
- target[FI_RGBA_ALPHA] = 0xFF;
- target += 4;
- }
-}
-/*
-void DLL_CALLCONV
-FreeImage_ConvertLine24To32(BYTE *target, BYTE *source, int width_in_pixels) {
- for (int cols = 0; cols < width_in_pixels; cols++) {
- *(DWORD *)target = (*(DWORD *) source & FI_RGBA_RGB_MASK) | FI_RGBA_ALPHA_MASK;
- target += 4;
- source += 3;
- }
-}
-*/
-/**
-This unoptimized version of the conversion function avoid an undetermined bug with VC++ SP6.
-The bug occurs in release mode only, when the image height is equal to 537
-(try e.g. a size of 432x537 to reproduce the bug with the optimized function).
-*/
-void DLL_CALLCONV
-FreeImage_ConvertLine24To32(BYTE *target, BYTE *source, int width_in_pixels) {
- for (int cols = 0; cols < width_in_pixels; cols++) {
- target[FI_RGBA_RED] = source[FI_RGBA_RED];
- target[FI_RGBA_GREEN] = source[FI_RGBA_GREEN];
- target[FI_RGBA_BLUE] = source[FI_RGBA_BLUE];
- target[FI_RGBA_ALPHA] = 0xFF;
- target += 4;
- source += 3;
- }
-}
-
-// ----------------------------------------------------------
-
-inline void
-FreeImage_ConvertLine1To32MapTransparency(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette, BYTE *table, int transparent_pixels) {
- for (int cols = 0; cols < width_in_pixels; cols++) {
- int index = (source[cols>>3] & (0x80 >> (cols & 0x07))) != 0 ? 1 : 0;
-
- target[FI_RGBA_BLUE] = palette[index].rgbBlue;
- target[FI_RGBA_GREEN] = palette[index].rgbGreen;
- target[FI_RGBA_RED] = palette[index].rgbRed;
- target[FI_RGBA_ALPHA] = (index < transparent_pixels) ? table[index] : 255;
- target += 4;
- }
-}
-
-inline void
-FreeImage_ConvertLine4To32MapTransparency(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette, BYTE *table, int transparent_pixels) {
- BOOL low_nibble = FALSE;
- int x = 0;
-
- for (int cols = 0 ; cols < width_in_pixels ; ++cols) {
- if (low_nibble) {
- target[FI_RGBA_BLUE] = palette[LOWNIBBLE(source[x])].rgbBlue;
- target[FI_RGBA_GREEN] = palette[LOWNIBBLE(source[x])].rgbGreen;
- target[FI_RGBA_RED] = palette[LOWNIBBLE(source[x])].rgbRed;
- target[FI_RGBA_ALPHA] = (LOWNIBBLE(source[x]) < transparent_pixels) ? table[LOWNIBBLE(source[x])] : 255;
-
- x++;
- } else {
- target[FI_RGBA_BLUE] = palette[HINIBBLE(source[x]) >> 4].rgbBlue;
- target[FI_RGBA_GREEN] = palette[HINIBBLE(source[x]) >> 4].rgbGreen;
- target[FI_RGBA_RED] = palette[HINIBBLE(source[x]) >> 4].rgbRed;
- target[FI_RGBA_ALPHA] = (HINIBBLE(source[x] >> 4) < transparent_pixels) ? table[HINIBBLE(source[x]) >> 4] : 255;
- }
-
- low_nibble = !low_nibble;
-
- target += 4;
- }
-}
-
-inline void
-FreeImage_ConvertLine8To32MapTransparency(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette, BYTE *table, int transparent_pixels) {
- for (int cols = 0; cols < width_in_pixels; cols++) {
- target[FI_RGBA_BLUE] = palette[source[cols]].rgbBlue;
- target[FI_RGBA_GREEN] = palette[source[cols]].rgbGreen;
- target[FI_RGBA_RED] = palette[source[cols]].rgbRed;
- target[FI_RGBA_ALPHA] = (source[cols] < transparent_pixels) ? table[source[cols]] : 255;
- target += 4;
- }
-}
-
-// ----------------------------------------------------------
-
-FIBITMAP * DLL_CALLCONV
-FreeImage_ConvertTo32Bits(FIBITMAP *dib) {
- if(!FreeImage_HasPixels(dib)) return NULL;
-
- const int bpp = FreeImage_GetBPP(dib);
- const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
-
- if((image_type != FIT_BITMAP) && (image_type != FIT_RGB16) && (image_type != FIT_RGBA16)) {
- return NULL;
- }
-
- const int width = FreeImage_GetWidth(dib);
- const int height = FreeImage_GetHeight(dib);
-
- if(image_type == FIT_BITMAP) {
-
- if(bpp == 32) {
- return FreeImage_Clone(dib);
- }
-
- FIBITMAP *new_dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
- if(new_dib == NULL) {
- return NULL;
- }
-
- // copy metadata from src to dst
- FreeImage_CloneMetadata(new_dib, dib);
-
- BOOL bIsTransparent = FreeImage_IsTransparent(dib);
-
- switch(bpp) {
- case 1:
- {
- if(bIsTransparent) {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine1To32MapTransparency(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib), FreeImage_GetTransparencyTable(dib), FreeImage_GetTransparencyCount(dib));
- }
- } else {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine1To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib));
- }
- }
-
- return new_dib;
- }
-
- case 4:
- {
- if(bIsTransparent) {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine4To32MapTransparency(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib), FreeImage_GetTransparencyTable(dib), FreeImage_GetTransparencyCount(dib));
- }
- } else {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine4To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib));
- }
- }
-
- return new_dib;
- }
-
- case 8:
- {
- if(bIsTransparent) {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine8To32MapTransparency(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib), FreeImage_GetTransparencyTable(dib), FreeImage_GetTransparencyCount(dib));
- }
- } else {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine8To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib));
- }
- }
-
- return new_dib;
- }
-
- case 16:
- {
- for (int rows = 0; rows < height; rows++) {
- if ((FreeImage_GetRedMask(dib) == FI16_565_RED_MASK) && (FreeImage_GetGreenMask(dib) == FI16_565_GREEN_MASK) && (FreeImage_GetBlueMask(dib) == FI16_565_BLUE_MASK)) {
- FreeImage_ConvertLine16To32_565(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width);
- } else {
- // includes case where all the masks are 0
- FreeImage_ConvertLine16To32_555(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width);
- }
- }
-
- return new_dib;
- }
-
- case 24:
- {
- for (int rows = 0; rows < height; rows++) {
- FreeImage_ConvertLine24To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width);
- }
-
- return new_dib;
- }
- }
-
- } else if(image_type == FIT_RGB16) {
- FIBITMAP *new_dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
- if(new_dib == NULL) {
- return NULL;
- }
-
- // copy metadata from src to dst
- FreeImage_CloneMetadata(new_dib, dib);
-
- const unsigned src_pitch = FreeImage_GetPitch(dib);
- const unsigned dst_pitch = FreeImage_GetPitch(new_dib);
- const BYTE *src_bits = FreeImage_GetBits(dib);
- BYTE *dst_bits = FreeImage_GetBits(new_dib);
- for (int rows = 0; rows < height; rows++) {
- const FIRGB16 *src_pixel = (FIRGB16*)src_bits;
- RGBQUAD *dst_pixel = (RGBQUAD*)dst_bits;
- for(int cols = 0; cols < width; cols++) {
- dst_pixel[cols].rgbRed = (BYTE)(src_pixel[cols].red >> 8);
- dst_pixel[cols].rgbGreen = (BYTE)(src_pixel[cols].green >> 8);
- dst_pixel[cols].rgbBlue = (BYTE)(src_pixel[cols].blue >> 8);
- dst_pixel[cols].rgbReserved = (BYTE)0xFF;
- }
- src_bits += src_pitch;
- dst_bits += dst_pitch;
- }
-
- return new_dib;
-
- } else if(image_type == FIT_RGBA16) {
- FIBITMAP *new_dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
- if(new_dib == NULL) {
- return NULL;
- }
-
- // copy metadata from src to dst
- FreeImage_CloneMetadata(new_dib, dib);
-
- const unsigned src_pitch = FreeImage_GetPitch(dib);
- const unsigned dst_pitch = FreeImage_GetPitch(new_dib);
- const BYTE *src_bits = FreeImage_GetBits(dib);
- BYTE *dst_bits = FreeImage_GetBits(new_dib);
- for (int rows = 0; rows < height; rows++) {
- const FIRGBA16 *src_pixel = (FIRGBA16*)src_bits;
- RGBQUAD *dst_pixel = (RGBQUAD*)dst_bits;
- for(int cols = 0; cols < width; cols++) {
- dst_pixel[cols].rgbRed = (BYTE)(src_pixel[cols].red >> 8);
- dst_pixel[cols].rgbGreen = (BYTE)(src_pixel[cols].green >> 8);
- dst_pixel[cols].rgbBlue = (BYTE)(src_pixel[cols].blue >> 8);
- dst_pixel[cols].rgbReserved = (BYTE)(src_pixel[cols].alpha >> 8);
- }
- src_bits += src_pitch;
- dst_bits += dst_pitch;
- }
-
- return new_dib;
- }
-
- return NULL;
-}
+// ========================================================== +// Bitmap conversion routines +// +// Design and implementation by +// - Floris van den Berg (flvdberg@wxs.nl) +// - Hervé Drolon (drolon@infonie.fr) +// - Jani Kajala (janik@remedy.fi) +// - Detlev Vendt (detlev.vendt@brillit.de) +// +// 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" + +// ---------------------------------------------------------- +// internal conversions X to 32 bits +// ---------------------------------------------------------- + +void DLL_CALLCONV +FreeImage_ConvertLine1To32(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) { + for (int cols = 0; cols < width_in_pixels; cols++) { + int index = (source[cols>>3] & (0x80 >> (cols & 0x07))) != 0 ? 1 : 0; + + target[FI_RGBA_BLUE] = palette[index].rgbBlue; + target[FI_RGBA_GREEN] = palette[index].rgbGreen; + target[FI_RGBA_RED] = palette[index].rgbRed; + target[FI_RGBA_ALPHA] = 0xFF; + target += 4; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine4To32(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) { + BOOL low_nibble = FALSE; + int x = 0; + + for (int cols = 0 ; cols < width_in_pixels ; ++cols) { + if (low_nibble) { + target[FI_RGBA_BLUE] = palette[LOWNIBBLE(source[x])].rgbBlue; + target[FI_RGBA_GREEN] = palette[LOWNIBBLE(source[x])].rgbGreen; + target[FI_RGBA_RED] = palette[LOWNIBBLE(source[x])].rgbRed; + + x++; + } else { + target[FI_RGBA_BLUE] = palette[HINIBBLE(source[x]) >> 4].rgbBlue; + target[FI_RGBA_GREEN] = palette[HINIBBLE(source[x]) >> 4].rgbGreen; + target[FI_RGBA_RED] = palette[HINIBBLE(source[x]) >> 4].rgbRed; + } + + low_nibble = !low_nibble; + + target[FI_RGBA_ALPHA] = 0xFF; + target += 4; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine8To32(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) { + for (int cols = 0; cols < width_in_pixels; cols++) { + target[FI_RGBA_BLUE] = palette[source[cols]].rgbBlue; + target[FI_RGBA_GREEN] = palette[source[cols]].rgbGreen; + target[FI_RGBA_RED] = palette[source[cols]].rgbRed; + target[FI_RGBA_ALPHA] = 0xFF; + target += 4; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine16To32_555(BYTE *target, BYTE *source, int width_in_pixels) { + WORD *bits = (WORD *)source; + + for (int cols = 0; cols < width_in_pixels; cols++) { + target[FI_RGBA_RED] = (BYTE)((((bits[cols] & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) * 0xFF) / 0x1F); + target[FI_RGBA_GREEN] = (BYTE)((((bits[cols] & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) * 0xFF) / 0x1F); + target[FI_RGBA_BLUE] = (BYTE)((((bits[cols] & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) * 0xFF) / 0x1F); + target[FI_RGBA_ALPHA] = 0xFF; + target += 4; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine16To32_565(BYTE *target, BYTE *source, int width_in_pixels) { + WORD *bits = (WORD *)source; + + for (int cols = 0; cols < width_in_pixels; cols++) { + target[FI_RGBA_RED] = (BYTE)((((bits[cols] & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) * 0xFF) / 0x1F); + target[FI_RGBA_GREEN] = (BYTE)((((bits[cols] & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) * 0xFF) / 0x3F); + target[FI_RGBA_BLUE] = (BYTE)((((bits[cols] & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) * 0xFF) / 0x1F); + target[FI_RGBA_ALPHA] = 0xFF; + target += 4; + } +} +/* +void DLL_CALLCONV +FreeImage_ConvertLine24To32(BYTE *target, BYTE *source, int width_in_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) { + *(DWORD *)target = (*(DWORD *) source & FI_RGBA_RGB_MASK) | FI_RGBA_ALPHA_MASK; + target += 4; + source += 3; + } +} +*/ +/** +This unoptimized version of the conversion function avoid an undetermined bug with VC++ SP6. +The bug occurs in release mode only, when the image height is equal to 537 +(try e.g. a size of 432x537 to reproduce the bug with the optimized function). +*/ +void DLL_CALLCONV +FreeImage_ConvertLine24To32(BYTE *target, BYTE *source, int width_in_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) { + target[FI_RGBA_RED] = source[FI_RGBA_RED]; + target[FI_RGBA_GREEN] = source[FI_RGBA_GREEN]; + target[FI_RGBA_BLUE] = source[FI_RGBA_BLUE]; + target[FI_RGBA_ALPHA] = 0xFF; + target += 4; + source += 3; + } +} + +// ---------------------------------------------------------- + +inline void +FreeImage_ConvertLine1To32MapTransparency(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette, BYTE *table, int transparent_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) { + int index = (source[cols>>3] & (0x80 >> (cols & 0x07))) != 0 ? 1 : 0; + + target[FI_RGBA_BLUE] = palette[index].rgbBlue; + target[FI_RGBA_GREEN] = palette[index].rgbGreen; + target[FI_RGBA_RED] = palette[index].rgbRed; + target[FI_RGBA_ALPHA] = (index < transparent_pixels) ? table[index] : 255; + target += 4; + } +} + +inline void +FreeImage_ConvertLine4To32MapTransparency(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette, BYTE *table, int transparent_pixels) { + BOOL low_nibble = FALSE; + int x = 0; + + for (int cols = 0 ; cols < width_in_pixels ; ++cols) { + if (low_nibble) { + target[FI_RGBA_BLUE] = palette[LOWNIBBLE(source[x])].rgbBlue; + target[FI_RGBA_GREEN] = palette[LOWNIBBLE(source[x])].rgbGreen; + target[FI_RGBA_RED] = palette[LOWNIBBLE(source[x])].rgbRed; + target[FI_RGBA_ALPHA] = (LOWNIBBLE(source[x]) < transparent_pixels) ? table[LOWNIBBLE(source[x])] : 255; + + x++; + } else { + target[FI_RGBA_BLUE] = palette[HINIBBLE(source[x]) >> 4].rgbBlue; + target[FI_RGBA_GREEN] = palette[HINIBBLE(source[x]) >> 4].rgbGreen; + target[FI_RGBA_RED] = palette[HINIBBLE(source[x]) >> 4].rgbRed; + target[FI_RGBA_ALPHA] = (HINIBBLE(source[x] >> 4) < transparent_pixels) ? table[HINIBBLE(source[x]) >> 4] : 255; + } + + low_nibble = !low_nibble; + + target += 4; + } +} + +inline void +FreeImage_ConvertLine8To32MapTransparency(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette, BYTE *table, int transparent_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) { + target[FI_RGBA_BLUE] = palette[source[cols]].rgbBlue; + target[FI_RGBA_GREEN] = palette[source[cols]].rgbGreen; + target[FI_RGBA_RED] = palette[source[cols]].rgbRed; + target[FI_RGBA_ALPHA] = (source[cols] < transparent_pixels) ? table[source[cols]] : 255; + target += 4; + } +} + +// ---------------------------------------------------------- + +FIBITMAP * DLL_CALLCONV +FreeImage_ConvertTo32Bits(FIBITMAP *dib) { + if(!FreeImage_HasPixels(dib)) return NULL; + + const int bpp = FreeImage_GetBPP(dib); + const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib); + + if((image_type != FIT_BITMAP) && (image_type != FIT_RGB16) && (image_type != FIT_RGBA16)) { + return NULL; + } + + const int width = FreeImage_GetWidth(dib); + const int height = FreeImage_GetHeight(dib); + + if(image_type == FIT_BITMAP) { + + if(bpp == 32) { + return FreeImage_Clone(dib); + } + + FIBITMAP *new_dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK); + if(new_dib == NULL) { + return NULL; + } + + // copy metadata from src to dst + FreeImage_CloneMetadata(new_dib, dib); + + BOOL bIsTransparent = FreeImage_IsTransparent(dib); + + switch(bpp) { + case 1: + { + if(bIsTransparent) { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine1To32MapTransparency(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib), FreeImage_GetTransparencyTable(dib), FreeImage_GetTransparencyCount(dib)); + } + } else { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine1To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + } + } + + return new_dib; + } + + case 4: + { + if(bIsTransparent) { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine4To32MapTransparency(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib), FreeImage_GetTransparencyTable(dib), FreeImage_GetTransparencyCount(dib)); + } + } else { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine4To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + } + } + + return new_dib; + } + + case 8: + { + if(bIsTransparent) { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine8To32MapTransparency(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib), FreeImage_GetTransparencyTable(dib), FreeImage_GetTransparencyCount(dib)); + } + } else { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine8To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + } + } + + return new_dib; + } + + case 16: + { + for (int rows = 0; rows < height; rows++) { + if ((FreeImage_GetRedMask(dib) == FI16_565_RED_MASK) && (FreeImage_GetGreenMask(dib) == FI16_565_GREEN_MASK) && (FreeImage_GetBlueMask(dib) == FI16_565_BLUE_MASK)) { + FreeImage_ConvertLine16To32_565(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } else { + // includes case where all the masks are 0 + FreeImage_ConvertLine16To32_555(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + } + + return new_dib; + } + + case 24: + { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine24To32(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + + return new_dib; + } + } + + } else if(image_type == FIT_RGB16) { + FIBITMAP *new_dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK); + if(new_dib == NULL) { + return NULL; + } + + // copy metadata from src to dst + FreeImage_CloneMetadata(new_dib, dib); + + const unsigned src_pitch = FreeImage_GetPitch(dib); + const unsigned dst_pitch = FreeImage_GetPitch(new_dib); + const BYTE *src_bits = FreeImage_GetBits(dib); + BYTE *dst_bits = FreeImage_GetBits(new_dib); + for (int rows = 0; rows < height; rows++) { + const FIRGB16 *src_pixel = (FIRGB16*)src_bits; + RGBQUAD *dst_pixel = (RGBQUAD*)dst_bits; + for(int cols = 0; cols < width; cols++) { + dst_pixel[cols].rgbRed = (BYTE)(src_pixel[cols].red >> 8); + dst_pixel[cols].rgbGreen = (BYTE)(src_pixel[cols].green >> 8); + dst_pixel[cols].rgbBlue = (BYTE)(src_pixel[cols].blue >> 8); + dst_pixel[cols].rgbReserved = (BYTE)0xFF; + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + + return new_dib; + + } else if(image_type == FIT_RGBA16) { + FIBITMAP *new_dib = FreeImage_Allocate(width, height, 32, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK); + if(new_dib == NULL) { + return NULL; + } + + // copy metadata from src to dst + FreeImage_CloneMetadata(new_dib, dib); + + const unsigned src_pitch = FreeImage_GetPitch(dib); + const unsigned dst_pitch = FreeImage_GetPitch(new_dib); + const BYTE *src_bits = FreeImage_GetBits(dib); + BYTE *dst_bits = FreeImage_GetBits(new_dib); + for (int rows = 0; rows < height; rows++) { + const FIRGBA16 *src_pixel = (FIRGBA16*)src_bits; + RGBQUAD *dst_pixel = (RGBQUAD*)dst_bits; + for(int cols = 0; cols < width; cols++) { + dst_pixel[cols].rgbRed = (BYTE)(src_pixel[cols].red >> 8); + dst_pixel[cols].rgbGreen = (BYTE)(src_pixel[cols].green >> 8); + dst_pixel[cols].rgbBlue = (BYTE)(src_pixel[cols].blue >> 8); + dst_pixel[cols].rgbReserved = (BYTE)(src_pixel[cols].alpha >> 8); + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + + return new_dib; + } + + return NULL; +} |