diff options
author | Kirill Volinsky <mataes2007@gmail.com> | 2012-12-22 16:38:58 +0000 |
---|---|---|
committer | Kirill Volinsky <mataes2007@gmail.com> | 2012-12-22 16:38:58 +0000 |
commit | 87d155ba9f4e699293adc65954c89f20fc65b36d (patch) | |
tree | d79d69145cc6ef4e97d2ad2912b4d645c7b27158 /plugins/AdvaImg/src/FreeImage/Conversion4.cpp | |
parent | a8bd33017b1959588d60c9a8a5ae3a744cb75e4d (diff) |
AdvaImg plugin folder renaming
git-svn-id: http://svn.miranda-ng.org/main/trunk@2801 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/AdvaImg/src/FreeImage/Conversion4.cpp')
-rw-r--r-- | plugins/AdvaImg/src/FreeImage/Conversion4.cpp | 246 |
1 files changed, 246 insertions, 0 deletions
diff --git a/plugins/AdvaImg/src/FreeImage/Conversion4.cpp b/plugins/AdvaImg/src/FreeImage/Conversion4.cpp new file mode 100644 index 0000000000..7c09ac824a --- /dev/null +++ b/plugins/AdvaImg/src/FreeImage/Conversion4.cpp @@ -0,0 +1,246 @@ +// ========================================================== +// Bitmap conversion routines +// +// Design and implementation by +// - Riley McNiff (rmcniff@marexgroup.com) +// +// 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 4 bits +// ---------------------------------------------------------- + +void DLL_CALLCONV +FreeImage_ConvertLine1To4(BYTE *target, BYTE *source, int width_in_pixels) { + BOOL hinibble = TRUE; + for (int cols = 0; cols < width_in_pixels; cols++) { + if (hinibble == TRUE){ + target[cols >> 1] = ((source[cols >> 3] & (0x80 >> (cols & 0x07))) != 0 ? 15 : 0) << 4; + } + else { + target[cols >> 1] |= ((source[cols >> 3] & (0x80 >> (cols & 0x07))) != 0 ? 15 : 0); + } + + hinibble = !hinibble; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine8To4(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) { + BOOL hinibble = TRUE; + BYTE index; + + for (int cols = 0; cols < width_in_pixels; cols++) { + index = GREY(palette[source[cols]].rgbRed, palette[source[cols]].rgbGreen, palette[source[cols]].rgbBlue); + if (hinibble) { + target[cols >> 1] = (index & 0xF0); + } else { + target[cols >> 1] |= (index >> 4); + } + + hinibble = !hinibble; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine16To4_555(BYTE *target, BYTE *source, int width_in_pixels) { + WORD *bits = (WORD *)source; + BOOL hinibble = TRUE; + + for (int cols = 0; cols < width_in_pixels; cols++) { + if (hinibble) { + target[cols >> 1] = GREY((((bits[cols] & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) * 0xFF) / 0x1F, + (((bits[cols] & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) * 0xFF) / 0x1F, + (((bits[cols] & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) * 0xFF) / 0x1F) + & 0xF0; + } else { + target[cols >> 1] |= GREY((((bits[cols] & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) * 0xFF) / 0x1F, + (((bits[cols] & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) * 0xFF) / 0x1F, + (((bits[cols] & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) * 0xFF) / 0x1F) + >> 4; + } + + hinibble = !hinibble; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine16To4_565(BYTE *target, BYTE *source, int width_in_pixels) { + WORD *bits = (WORD *)source; + BOOL hinibble = TRUE; + + for (int cols = 0; cols < width_in_pixels; cols++) { + if (hinibble) { + target[cols >> 1] = GREY((((bits[cols] & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) * 0xFF) / 0x1F, + (((bits[cols] & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) * 0xFF) / 0x3F, + (((bits[cols] & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) * 0xFF) / 0x1F) + & 0xF0; + } else { + target[cols >> 1] |= GREY((((bits[cols] & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) * 0xFF) / 0x1F, + (((bits[cols] & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) * 0xFF) / 0x3F, + (((bits[cols] & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) * 0xFF) / 0x1F) + >> 4; + } + + hinibble = !hinibble; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine24To4(BYTE *target, BYTE *source, int width_in_pixels) { + BOOL hinibble = TRUE; + + for (int cols = 0; cols < width_in_pixels; cols++) { + if (hinibble) { + target[cols >> 1] = GREY(source[FI_RGBA_RED], source[FI_RGBA_GREEN], source[FI_RGBA_BLUE]) & 0xF0; + } else { + target[cols >> 1] |= GREY(source[FI_RGBA_RED], source[FI_RGBA_GREEN], source[FI_RGBA_BLUE]) >> 4; + } + + source += 3; + hinibble = !hinibble; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine32To4(BYTE *target, BYTE *source, int width_in_pixels) { + BOOL hinibble = TRUE; + + for (int cols = 0; cols < width_in_pixels; cols++) { + if (hinibble) { + target[cols >> 1] = GREY(source[FI_RGBA_RED], source[FI_RGBA_GREEN], source[FI_RGBA_BLUE]) & 0xF0; + } else { + target[cols >> 1] |= GREY(source[FI_RGBA_RED], source[FI_RGBA_GREEN], source[FI_RGBA_BLUE]) >> 4; + } + + source += 4; + hinibble = !hinibble; + } +} + +// ---------------------------------------------------------- +// smart convert X to 4 bits +// ---------------------------------------------------------- + +FIBITMAP * DLL_CALLCONV +FreeImage_ConvertTo4Bits(FIBITMAP *dib) { + if (!FreeImage_HasPixels(dib)) return NULL; + + const int bpp = FreeImage_GetBPP(dib); + + if(bpp != 4) { + const int width = FreeImage_GetWidth(dib); + const int height = FreeImage_GetHeight(dib); + FIBITMAP *new_dib = FreeImage_Allocate(width, height, 4); + + if(new_dib == NULL) { + return NULL; + } + + // copy metadata from src to dst + FreeImage_CloneMetadata(new_dib, dib); + + // Build a greyscale palette (*always* needed for image processing) + + RGBQUAD *new_pal = FreeImage_GetPalette(new_dib); + + for(int i = 0; i < 16; i++) { + new_pal[i].rgbRed = (BYTE)((i << 4) + i); + new_pal[i].rgbGreen = (BYTE)((i << 4) + i); + new_pal[i].rgbBlue = (BYTE)((i << 4) + i); + } + + switch(bpp) { + case 1: + { + if(FreeImage_GetColorType(dib) == FIC_PALETTE) { + + // Copy the palette + + RGBQUAD *old_pal = FreeImage_GetPalette(dib); + memcpy(&new_pal[0], &old_pal[0], sizeof(RGBQUAD)); + memcpy(&new_pal[15], &old_pal[1], sizeof(RGBQUAD)); + + } + else if(FreeImage_GetColorType(dib) == FIC_MINISWHITE) { + + // Reverse the grayscale palette + + for(int i = 0; i < 16; i++) { + new_pal[i].rgbRed = new_pal[i].rgbGreen = new_pal[i].rgbBlue = (BYTE)(255 - ((i << 4) + i)); + } + } + + // Expand and copy the bitmap data + + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine1To4(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + return new_dib; + } + + case 8 : + { + // Expand and copy the bitmap data + + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine8To4(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + } + return new_dib; + } + + case 16 : + { + // Expand and copy the bitmap data + + 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_ConvertLine16To4_565(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } else { + FreeImage_ConvertLine16To4_555(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + } + + return new_dib; + } + + case 24 : + { + // Expand and copy the bitmap data + + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine24To4(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + return new_dib; + } + + case 32 : + { + // Expand and copy the bitmap data + + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine32To4(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + return new_dib; + } + } + } + + return FreeImage_Clone(dib); +} |