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/ConversionFloat.cpp | 192 ++++++++++++++++++++++ 1 file changed, 192 insertions(+) create mode 100644 plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp (limited to 'plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp') diff --git a/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp b/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp new file mode 100644 index 0000000000..181ff396e1 --- /dev/null +++ b/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp @@ -0,0 +1,192 @@ +// ========================================================== +// Bitmap conversion routines +// +// 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 "FreeImage.h" +#include "Utilities.h" + +// ---------------------------------------------------------- +// smart convert X to Float +// ---------------------------------------------------------- + +FIBITMAP * DLL_CALLCONV +FreeImage_ConvertToFloat(FIBITMAP *dib) { + FIBITMAP *src = NULL; + FIBITMAP *dst = NULL; + + if (!FreeImage_HasPixels(dib)) return NULL; + + FREE_IMAGE_TYPE src_type = FreeImage_GetImageType(dib); + + // check for allowed conversions + switch(src_type) { + case FIT_BITMAP: + { + // allow conversion from 8-bit + if ((FreeImage_GetBPP(dib) == 8) && (FreeImage_GetColorType(dib) == FIC_MINISBLACK)) { + src = dib; + } else { + src = FreeImage_ConvertToGreyscale(dib); + if (!src) return NULL; + } + break; + } + case FIT_UINT16: + case FIT_RGB16: + case FIT_RGBA16: + case FIT_RGBF: + case FIT_RGBAF: + src = dib; + break; + case FIT_FLOAT: + // float type : clone the src + return FreeImage_Clone(dib); + default: + return NULL; + } + + // allocate dst image + + const unsigned width = FreeImage_GetWidth(src); + const unsigned height = FreeImage_GetHeight(src); + + dst = FreeImage_AllocateT(FIT_FLOAT, width, height); + if (!dst) { + if(src != dib) { + FreeImage_Unload(src); + } + return NULL; + } + + // copy metadata from src to dst + FreeImage_CloneMetadata(dst, src); + + // convert from src type to float + + const unsigned src_pitch = FreeImage_GetPitch(src); + const unsigned dst_pitch = FreeImage_GetPitch(dst); + + const BYTE *src_bits = (BYTE*)FreeImage_GetBits(src); + BYTE *dst_bits = (BYTE*)FreeImage_GetBits(dst); + + switch(src_type) { + case FIT_BITMAP: + { + for(unsigned y = 0; y < height; y++) { + const BYTE *src_pixel = (BYTE*)src_bits; + float *dst_pixel = (float*)dst_bits; + for(unsigned x = 0; x < width; x++) { + // convert and scale to the range [0..1] + dst_pixel[x] = (float)(src_pixel[x]) / 255; + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + } + break; + + case FIT_UINT16: + { + for(unsigned y = 0; y < height; y++) { + const WORD *src_pixel = (WORD*)src_bits; + float *dst_pixel = (float*)dst_bits; + + for(unsigned x = 0; x < width; x++) { + // convert and scale to the range [0..1] + dst_pixel[x] = (float)(src_pixel[x]) / 65535; + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + } + break; + + case FIT_RGB16: + { + for(unsigned y = 0; y < height; y++) { + const FIRGB16 *src_pixel = (FIRGB16*)src_bits; + float *dst_pixel = (float*)dst_bits; + + for(unsigned x = 0; x < width; x++) { + // convert and scale to the range [0..1] + dst_pixel[x] = LUMA_REC709(src_pixel[x].red, src_pixel[x].green, src_pixel[x].blue) / 65535.0F; + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + } + break; + + case FIT_RGBA16: + { + for(unsigned y = 0; y < height; y++) { + const FIRGBA16 *src_pixel = (FIRGBA16*)src_bits; + float *dst_pixel = (float*)dst_bits; + + for(unsigned x = 0; x < width; x++) { + // convert and scale to the range [0..1] + dst_pixel[x] = LUMA_REC709(src_pixel[x].red, src_pixel[x].green, src_pixel[x].blue) / 65535.0F; + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + } + break; + + case FIT_RGBF: + { + for(unsigned y = 0; y < height; y++) { + const FIRGBF *src_pixel = (FIRGBF*)src_bits; + float *dst_pixel = (float*)dst_bits; + + for(unsigned x = 0; x < width; x++) { + // convert (assume pixel values are in the range [0..1]) + dst_pixel[x] = LUMA_REC709(src_pixel[x].red, src_pixel[x].green, src_pixel[x].blue); + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + } + break; + + case FIT_RGBAF: + { + for(unsigned y = 0; y < height; y++) { + const FIRGBAF *src_pixel = (FIRGBAF*)src_bits; + float *dst_pixel = (float*)dst_bits; + + for(unsigned x = 0; x < width; x++) { + // convert (assume pixel values are in the range [0..1]) + dst_pixel[x] = LUMA_REC709(src_pixel[x].red, src_pixel[x].green, src_pixel[x].blue); + } + src_bits += src_pitch; + dst_bits += dst_pitch; + } + } + break; + } + + if(src != dib) { + FreeImage_Unload(src); + } + + return dst; +} + -- cgit v1.2.3