diff options
Diffstat (limited to 'plugins/AdvaImg/src/FreeImage/ConversionRGB16.cpp')
| -rw-r--r-- | plugins/AdvaImg/src/FreeImage/ConversionRGB16.cpp | 288 |
1 files changed, 144 insertions, 144 deletions
diff --git a/plugins/AdvaImg/src/FreeImage/ConversionRGB16.cpp b/plugins/AdvaImg/src/FreeImage/ConversionRGB16.cpp index bd38504a1e..9e28205688 100644 --- a/plugins/AdvaImg/src/FreeImage/ConversionRGB16.cpp +++ b/plugins/AdvaImg/src/FreeImage/ConversionRGB16.cpp @@ -1,144 +1,144 @@ -// ==========================================================
-// 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 RGB16
-// ----------------------------------------------------------
-
-FIBITMAP * DLL_CALLCONV
-FreeImage_ConvertToRGB16(FIBITMAP *dib) {
- FIBITMAP *src = NULL;
- FIBITMAP *dst = NULL;
-
- if(!FreeImage_HasPixels(dib)) return NULL;
-
- const FREE_IMAGE_TYPE src_type = FreeImage_GetImageType(dib);
-
- // check for allowed conversions
- switch(src_type) {
- case FIT_BITMAP:
- {
- // convert to 24-bit if needed
- if((FreeImage_GetBPP(dib) == 24) || (FreeImage_GetBPP(dib) == 32)) {
- src = dib;
- } else {
- src = FreeImage_ConvertTo24Bits(dib);
- if(!src) return NULL;
- }
- break;
- }
- case FIT_UINT16:
- // allow conversion from unsigned 16-bit
- src = dib;
- break;
- case FIT_RGB16:
- // RGB16 type : clone the src
- return FreeImage_Clone(dib);
- break;
- case FIT_RGBA16:
- // allow conversion from 64-bit RGBA (ignore the alpha channel)
- src = dib;
- break;
- default:
- return NULL;
- }
-
- // allocate dst image
-
- const unsigned width = FreeImage_GetWidth(src);
- const unsigned height = FreeImage_GetHeight(src);
-
- dst = FreeImage_AllocateT(FIT_RGB16, 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 RGB16
-
- switch(src_type) {
- case FIT_BITMAP:
- {
- // Calculate the number of bytes per pixel (1 for 8-bit, 3 for 24-bit or 4 for 32-bit)
- const unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
-
- for(unsigned y = 0; y < height; y++) {
- const BYTE *src_bits = (BYTE*)FreeImage_GetScanLine(src, y);
- FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y);
- for(unsigned x = 0; x < width; x++) {
- dst_bits[x].red = src_bits[FI_RGBA_RED] << 8;
- dst_bits[x].green = src_bits[FI_RGBA_GREEN] << 8;
- dst_bits[x].blue = src_bits[FI_RGBA_BLUE] << 8;
- src_bits += bytespp;
- }
- }
- }
- break;
-
- case FIT_UINT16:
- {
- for(unsigned y = 0; y < height; y++) {
- const WORD *src_bits = (WORD*)FreeImage_GetScanLine(src, y);
- FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y);
- for(unsigned x = 0; x < width; x++) {
- // convert by copying greyscale channel to each R, G, B channels
- dst_bits[x].red = src_bits[x];
- dst_bits[x].green = src_bits[x];
- dst_bits[x].blue = src_bits[x];
- }
- }
- }
- break;
-
- case FIT_RGBA16:
- {
- for(unsigned y = 0; y < height; y++) {
- const FIRGBA16 *src_bits = (FIRGBA16*)FreeImage_GetScanLine(src, y);
- FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y);
- for(unsigned x = 0; x < width; x++) {
- // convert and skip alpha channel
- dst_bits[x].red = src_bits[x].red;
- dst_bits[x].green = src_bits[x].green;
- dst_bits[x].blue = src_bits[x].blue;
- }
- }
- }
- break;
-
- default:
- break;
- }
-
- if(src != dib) {
- FreeImage_Unload(src);
- }
-
- return dst;
-}
-
+// ========================================================== +// 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 RGB16 +// ---------------------------------------------------------- + +FIBITMAP * DLL_CALLCONV +FreeImage_ConvertToRGB16(FIBITMAP *dib) { + FIBITMAP *src = NULL; + FIBITMAP *dst = NULL; + + if(!FreeImage_HasPixels(dib)) return NULL; + + const FREE_IMAGE_TYPE src_type = FreeImage_GetImageType(dib); + + // check for allowed conversions + switch(src_type) { + case FIT_BITMAP: + { + // convert to 24-bit if needed + if((FreeImage_GetBPP(dib) == 24) || (FreeImage_GetBPP(dib) == 32)) { + src = dib; + } else { + src = FreeImage_ConvertTo24Bits(dib); + if(!src) return NULL; + } + break; + } + case FIT_UINT16: + // allow conversion from unsigned 16-bit + src = dib; + break; + case FIT_RGB16: + // RGB16 type : clone the src + return FreeImage_Clone(dib); + break; + case FIT_RGBA16: + // allow conversion from 64-bit RGBA (ignore the alpha channel) + src = dib; + break; + default: + return NULL; + } + + // allocate dst image + + const unsigned width = FreeImage_GetWidth(src); + const unsigned height = FreeImage_GetHeight(src); + + dst = FreeImage_AllocateT(FIT_RGB16, 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 RGB16 + + switch(src_type) { + case FIT_BITMAP: + { + // Calculate the number of bytes per pixel (1 for 8-bit, 3 for 24-bit or 4 for 32-bit) + const unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src); + + for(unsigned y = 0; y < height; y++) { + const BYTE *src_bits = (BYTE*)FreeImage_GetScanLine(src, y); + FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y); + for(unsigned x = 0; x < width; x++) { + dst_bits[x].red = src_bits[FI_RGBA_RED] << 8; + dst_bits[x].green = src_bits[FI_RGBA_GREEN] << 8; + dst_bits[x].blue = src_bits[FI_RGBA_BLUE] << 8; + src_bits += bytespp; + } + } + } + break; + + case FIT_UINT16: + { + for(unsigned y = 0; y < height; y++) { + const WORD *src_bits = (WORD*)FreeImage_GetScanLine(src, y); + FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y); + for(unsigned x = 0; x < width; x++) { + // convert by copying greyscale channel to each R, G, B channels + dst_bits[x].red = src_bits[x]; + dst_bits[x].green = src_bits[x]; + dst_bits[x].blue = src_bits[x]; + } + } + } + break; + + case FIT_RGBA16: + { + for(unsigned y = 0; y < height; y++) { + const FIRGBA16 *src_bits = (FIRGBA16*)FreeImage_GetScanLine(src, y); + FIRGB16 *dst_bits = (FIRGB16*)FreeImage_GetScanLine(dst, y); + for(unsigned x = 0; x < width; x++) { + // convert and skip alpha channel + dst_bits[x].red = src_bits[x].red; + dst_bits[x].green = src_bits[x].green; + dst_bits[x].blue = src_bits[x].blue; + } + } + } + break; + + default: + break; + } + + if(src != dib) { + FreeImage_Unload(src); + } + + return dst; +} + |