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-rw-r--r--plugins/FreeImage/src/FreeImageToolkit/Rescale.cpp231
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diff --git a/plugins/FreeImage/src/FreeImageToolkit/Rescale.cpp b/plugins/FreeImage/src/FreeImageToolkit/Rescale.cpp
deleted file mode 100644
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--- a/plugins/FreeImage/src/FreeImageToolkit/Rescale.cpp
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-// ==========================================================
-// Upsampling / downsampling routine
-//
-// Design and implementation by
-// - Hervé Drolon (drolon@infonie.fr)
-//
-// 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 "Resize.h"
-
-FIBITMAP * DLL_CALLCONV
-FreeImage_Rescale(FIBITMAP *src, int dst_width, int dst_height, FREE_IMAGE_FILTER filter) {
- FIBITMAP *dst = NULL;
-
- if (!FreeImage_HasPixels(src) || (dst_width <= 0) || (dst_height <= 0) || (FreeImage_GetWidth(src) <= 0) || (FreeImage_GetHeight(src) <= 0)) {
- return NULL;
- }
-
- // select the filter
- CGenericFilter *pFilter = NULL;
- switch(filter) {
- case FILTER_BOX:
- pFilter = new(std::nothrow) CBoxFilter();
- break;
- case FILTER_BICUBIC:
- pFilter = new(std::nothrow) CBicubicFilter();
- break;
- case FILTER_BILINEAR:
- pFilter = new(std::nothrow) CBilinearFilter();
- break;
- case FILTER_BSPLINE:
- pFilter = new(std::nothrow) CBSplineFilter();
- break;
- case FILTER_CATMULLROM:
- pFilter = new(std::nothrow) CCatmullRomFilter();
- break;
- case FILTER_LANCZOS3:
- pFilter = new(std::nothrow) CLanczos3Filter();
- break;
- }
-
- if (!pFilter) {
- return NULL;
- }
-
- CResizeEngine Engine(pFilter);
-
- // perform upsampling or downsampling
-
- if ((FreeImage_GetBPP(src) == 4) || (FreeImage_GetColorType(src) == FIC_PALETTE)) {
- // special case for 4-bit images or color map indexed images ...
- if(FreeImage_IsTransparent(src) == FALSE) {
- FIBITMAP *src24 = NULL;
- FIBITMAP *dst24 = NULL;
- try {
- // transparent conversion to 24-bit (any transparency table will be destroyed)
- src24 = FreeImage_ConvertTo24Bits(src);
- if (!src24) throw(1);
- // perform upsampling or downsampling
- dst24 = Engine.scale(src24, dst_width, dst_height);
- if (!dst24) throw(1);
- FreeImage_Unload(src24); src24 = NULL;
- // color quantize to 8-bit
- dst = FreeImage_ColorQuantize(dst24, FIQ_NNQUANT);
- // free and return
- FreeImage_Unload(dst24);
- } catch(int) {
- if(src24) FreeImage_Unload(src24);
- if(dst24) FreeImage_Unload(dst24);
- }
- } else {
- FIBITMAP *src32 = NULL;
- try {
- // transparent conversion to 32-bit (keep transparency)
- src32 = FreeImage_ConvertTo32Bits(src);
- if (!src32) throw(1);
- // perform upsampling or downsampling
- dst = Engine.scale(src32, dst_width, dst_height);
- if (!dst) throw(1);
- // free and return
- FreeImage_Unload(src32);
- } catch(int) {
- if(src32) FreeImage_Unload(src32);
- if(dst) FreeImage_Unload(dst);
- }
- }
- }
- else if ((FreeImage_GetBPP(src) == 16) && (FreeImage_GetImageType(src) == FIT_BITMAP)) {
- // convert 16-bit RGB to 24-bit
- FIBITMAP *src24 = NULL;
- try {
- // transparent conversion to 24-bit (any transparency table will be destroyed)
- src24 = FreeImage_ConvertTo24Bits(src);
- if (!src24) throw(1);
- // perform upsampling or downsampling
- dst = Engine.scale(src24, dst_width, dst_height);
- if (!dst) throw(1);
- // free and return
- FreeImage_Unload(src24);
- } catch(int) {
- if(src24) FreeImage_Unload(src24);
- if(dst) FreeImage_Unload(dst);
- }
- }
- else {
- // normal case :
- // 1- or 8-bit greyscale, 24- or 32-bit RGB(A) images
- // 16-bit greyscale, 48- or 64-bit RGB(A) images
- // 32-bit float, 96- or 128-bit RGB(A) float images
- dst = Engine.scale(src, dst_width, dst_height);
- }
-
-
- delete pFilter;
-
- // copy metadata from src to dst
- FreeImage_CloneMetadata(dst, src);
-
- return dst;
-}
-
-FIBITMAP * DLL_CALLCONV
-FreeImage_MakeThumbnail(FIBITMAP *dib, int max_pixel_size, BOOL convert) {
- FIBITMAP *thumbnail = NULL;
- int new_width, new_height;
-
- if (!FreeImage_HasPixels(dib) || (max_pixel_size <= 0)) return NULL;
-
- int width = FreeImage_GetWidth(dib);
- int height = FreeImage_GetHeight(dib);
-
- if(max_pixel_size == 0) max_pixel_size = 1;
-
- if ((width < max_pixel_size) && (height < max_pixel_size)) {
- // image is smaller than the requested thumbnail
- return FreeImage_Clone(dib);
- }
-
- if(width > height) {
- new_width = max_pixel_size;
- // change image height with the same ratio
- double ratio = ((double)new_width / (double)width);
- new_height = (int)(height * ratio + 0.5);
- if(new_height == 0) new_height = 1;
- } else {
- new_height = max_pixel_size;
- // change image width with the same ratio
- double ratio = ((double)new_height / (double)height);
- new_width = (int)(width * ratio + 0.5);
- if(new_width == 0) new_width = 1;
- }
-
- const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
-
- // perform downsampling using a bilinear interpolation
-
- switch(image_type) {
- case FIT_BITMAP:
- case FIT_UINT16:
- case FIT_RGB16:
- case FIT_RGBA16:
- case FIT_FLOAT:
- case FIT_RGBF:
- case FIT_RGBAF:
- {
- FREE_IMAGE_FILTER filter = FILTER_BILINEAR;
- thumbnail = FreeImage_Rescale(dib, new_width, new_height, filter);
- }
- break;
-
- case FIT_INT16:
- case FIT_UINT32:
- case FIT_INT32:
- case FIT_DOUBLE:
- case FIT_COMPLEX:
- default:
- // cannot rescale this kind of image
- thumbnail = NULL;
- break;
- }
-
- if ((thumbnail != NULL) && (image_type != FIT_BITMAP) && convert) {
- // convert to a standard bitmap
- FIBITMAP *bitmap = NULL;
- switch(image_type) {
- case FIT_UINT16:
- bitmap = FreeImage_ConvertTo8Bits(thumbnail);
- break;
- case FIT_RGB16:
- bitmap = FreeImage_ConvertTo24Bits(thumbnail);
- break;
- case FIT_RGBA16:
- bitmap = FreeImage_ConvertTo32Bits(thumbnail);
- break;
- case FIT_FLOAT:
- bitmap = FreeImage_ConvertToStandardType(thumbnail, TRUE);
- break;
- case FIT_RGBF:
- bitmap = FreeImage_ToneMapping(thumbnail, FITMO_DRAGO03);
- break;
- case FIT_RGBAF:
- // no way to keep the transparency yet ...
- FIBITMAP *rgbf = FreeImage_ConvertToRGBF(thumbnail);
- bitmap = FreeImage_ToneMapping(rgbf, FITMO_DRAGO03);
- FreeImage_Unload(rgbf);
- break;
- }
- if(bitmap != NULL) {
- FreeImage_Unload(thumbnail);
- thumbnail = bitmap;
- }
- }
-
- // copy metadata from src to dst
- FreeImage_CloneMetadata(thumbnail, dib);
-
- return thumbnail;
-}