From 87d155ba9f4e699293adc65954c89f20fc65b36d Mon Sep 17 00:00:00 2001 From: Kirill Volinsky Date: Sat, 22 Dec 2012 16:38:58 +0000 Subject: AdvaImg plugin folder renaming git-svn-id: http://svn.miranda-ng.org/main/trunk@2801 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c --- plugins/AdvaImg/src/FreeImage/Conversion8.cpp | 327 ++++++++++++++++++++++++++ 1 file changed, 327 insertions(+) create mode 100644 plugins/AdvaImg/src/FreeImage/Conversion8.cpp (limited to 'plugins/AdvaImg/src/FreeImage/Conversion8.cpp') diff --git a/plugins/AdvaImg/src/FreeImage/Conversion8.cpp b/plugins/AdvaImg/src/FreeImage/Conversion8.cpp new file mode 100644 index 0000000000..867cf756ed --- /dev/null +++ b/plugins/AdvaImg/src/FreeImage/Conversion8.cpp @@ -0,0 +1,327 @@ +// ========================================================== +// Bitmap conversion routines +// +// Design and implementation by +// - Floris van den Berg (flvdberg@wxs.nl) +// - Hervé Drolon (drolon@infonie.fr) +// - Jani Kajala (janik@remedy.fi) +// - Karl-Heinz Bussian (khbussian@moss.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 8 bits +// ---------------------------------------------------------- + +void DLL_CALLCONV +FreeImage_ConvertLine1To8(BYTE *target, BYTE *source, int width_in_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) + target[cols] = (source[cols >> 3] & (0x80 >> (cols & 0x07))) != 0 ? 255 : 0; +} + +void DLL_CALLCONV +FreeImage_ConvertLine4To8(BYTE *target, BYTE *source, int width_in_pixels) { + int count_new = 0; + int count_org = 0; + BOOL hinibble = TRUE; + + while (count_new < width_in_pixels) { + if (hinibble) { + target[count_new] = (source[count_org] & 0xF0) >> 4; + } else { + target[count_new] = (source[count_org] & 0x0F); + + count_org++; + } + + hinibble = !hinibble; + + count_new++; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine16To8_555(BYTE *target, BYTE *source, int width_in_pixels) { + WORD *bits = (WORD *)source; + + for (int cols = 0; cols < width_in_pixels; cols++) { + target[cols] = 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); + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine16To8_565(BYTE *target, BYTE *source, int width_in_pixels) { + WORD *bits = (WORD *)source; + + for (int cols = 0; cols < width_in_pixels; cols++) + target[cols] = 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); +} + +void DLL_CALLCONV +FreeImage_ConvertLine24To8(BYTE *target, BYTE *source, int width_in_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) { + target[cols] = GREY(source[FI_RGBA_RED], source[FI_RGBA_GREEN], source[FI_RGBA_BLUE]); + + source += 3; + } +} + +void DLL_CALLCONV +FreeImage_ConvertLine32To8(BYTE *target, BYTE *source, int width_in_pixels) { + for (int cols = 0; cols < width_in_pixels; cols++) { + target[cols] = GREY(source[FI_RGBA_RED], source[FI_RGBA_GREEN], source[FI_RGBA_BLUE]); + + source += 4; + } +} + +// ---------------------------------------------------------- +// smart convert X to 8 bits +// ---------------------------------------------------------- + +FIBITMAP * DLL_CALLCONV +FreeImage_ConvertTo8Bits(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_UINT16)) { + return NULL; + } + + if(bpp != 8) { + const int width = FreeImage_GetWidth(dib); + const int height = FreeImage_GetHeight(dib); + FIBITMAP *new_dib = FreeImage_Allocate(width, height, 8); + + 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 < 256; i++) { + new_pal[i].rgbRed = (BYTE)i; + new_pal[i].rgbGreen = (BYTE)i; + new_pal[i].rgbBlue = (BYTE)i; + } + + if(image_type == FIT_BITMAP) { + + 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[255], &old_pal[1], sizeof(RGBQUAD)); + + } + else if(FreeImage_GetColorType(dib) == FIC_MINISWHITE) { + + // Reverse the grayscale palette + + for(int i = 0; i < 256; i++) { + new_pal[i].rgbRed = new_pal[i].rgbGreen = new_pal[i].rgbBlue = (BYTE)(255 - i); + } + } + + + // Expand and copy the bitmap data + + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine1To8(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + return new_dib; + } + + case 4 : + { + if(FreeImage_GetColorType(dib) == FIC_PALETTE) { + + // Copy the palette + + RGBQUAD *old_pal = FreeImage_GetPalette(dib); + + for (int i = 0; i < 16; i++) { + new_pal[i].rgbRed = old_pal[i].rgbRed; + new_pal[i].rgbGreen = old_pal[i].rgbGreen; + new_pal[i].rgbBlue = old_pal[i].rgbBlue; + } + } + + // Expand and copy the bitmap data + + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine4To8(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + 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_ConvertLine16To8_565(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } else { + FreeImage_ConvertLine16To8_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_ConvertLine24To8(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_ConvertLine32To8(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width); + } + return new_dib; + } + } + + } else if(image_type == FIT_UINT16) { + + 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 WORD *src_pixel = (WORD*)src_bits; + BYTE *dst_pixel = (BYTE*)dst_bits; + for(int cols = 0; cols < width; cols++) { + dst_pixel[cols] = (BYTE)(src_pixel[cols] >> 8); + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + + return new_dib; + + } + + } // bpp != 8 + + return FreeImage_Clone(dib); +} + +FIBITMAP * DLL_CALLCONV +FreeImage_ConvertToGreyscale(FIBITMAP *dib) { + if (!FreeImage_HasPixels(dib)) return NULL; + + const FREE_IMAGE_COLOR_TYPE color_type = FreeImage_GetColorType(dib); + const int bpp = FreeImage_GetBPP(dib); + + if ((color_type == FIC_PALETTE) || (color_type == FIC_MINISWHITE)) { + const int width = FreeImage_GetWidth(dib); + const int height = FreeImage_GetHeight(dib); + FIBITMAP *new_dib = FreeImage_Allocate(width, height, 8); + + if(new_dib == NULL) { + return NULL; + } + + // copy metadata from src to dst + FreeImage_CloneMetadata(new_dib, dib); + + // Build a greyscale palette + + RGBQUAD *new_pal = FreeImage_GetPalette(new_dib); + + for(int i = 0; i < 256; i++) { + new_pal[i].rgbRed = (BYTE)i; + new_pal[i].rgbGreen = (BYTE)i; + new_pal[i].rgbBlue = (BYTE)i; + } + + // allocate a 24-bit buffer + + BYTE *buffer = (BYTE*)malloc( CalculatePitch(CalculateLine(width, 24)) * sizeof(BYTE)); + if(NULL == buffer) { + FreeImage_Unload(new_dib); + return NULL; + } + + // Convert the palette to 24-bit, then to 8-bit + + switch(bpp) { + case 1: + { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine1To24(buffer, FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + FreeImage_ConvertLine24To8(FreeImage_GetScanLine(new_dib, rows), buffer, width); + } + } + break; + + case 4: + { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine4To24(buffer, FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + FreeImage_ConvertLine24To8(FreeImage_GetScanLine(new_dib, rows), buffer, width); + } + } + break; + + case 8: + { + for (int rows = 0; rows < height; rows++) { + FreeImage_ConvertLine8To24(buffer, FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib)); + FreeImage_ConvertLine24To8(FreeImage_GetScanLine(new_dib, rows), buffer, width); + } + } + break; + + } + free(buffer); + + return new_dib; + + } + + // Convert the bitmap to 8-bit greyscale + return FreeImage_ConvertTo8Bits(dib); +} -- cgit v1.2.3