diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/freeimage/Source/FreeImage/ConversionUINT16.cpp | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/freeimage/Source/FreeImage/ConversionUINT16.cpp')
| -rw-r--r-- | plugins/freeimage/Source/FreeImage/ConversionUINT16.cpp | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/plugins/freeimage/Source/FreeImage/ConversionUINT16.cpp b/plugins/freeimage/Source/FreeImage/ConversionUINT16.cpp new file mode 100644 index 0000000000..ed4691f3a2 --- /dev/null +++ b/plugins/freeimage/Source/FreeImage/ConversionUINT16.cpp @@ -0,0 +1,134 @@ +// ==========================================================
+// 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 UINT16
+// ----------------------------------------------------------
+
+FIBITMAP * DLL_CALLCONV
+FreeImage_ConvertToUINT16(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 greyscale if needed
+ 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:
+ // UINT16 type : clone the src
+ return FreeImage_Clone(dib);
+ break;
+ case FIT_RGB16:
+ // allow conversion from 48-bit RGB
+ src = 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_UINT16, 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 UINT16
+
+ switch(src_type) {
+ case FIT_BITMAP:
+ {
+ for(unsigned y = 0; y < height; y++) {
+ const BYTE *src_bits = (BYTE*)FreeImage_GetScanLine(src, y);
+ WORD *dst_bits = (WORD*)FreeImage_GetScanLine(dst, y);
+ for(unsigned x = 0; x < width; x++) {
+ dst_bits[x] = src_bits[x] << 8;
+ }
+ }
+ }
+ break;
+
+ case FIT_RGB16:
+ {
+ for(unsigned y = 0; y < height; y++) {
+ const FIRGB16 *src_bits = (FIRGB16*)FreeImage_GetScanLine(src, y);
+ WORD *dst_bits = (WORD*)FreeImage_GetScanLine(dst, y);
+ for(unsigned x = 0; x < width; x++) {
+ // convert to grey
+ dst_bits[x] = (WORD)LUMA_REC709(src_bits[x].red, src_bits[x].green, src_bits[x].blue);
+ }
+ }
+ }
+ break;
+
+ case FIT_RGBA16:
+ {
+ for(unsigned y = 0; y < height; y++) {
+ const FIRGBA16 *src_bits = (FIRGBA16*)FreeImage_GetScanLine(src, y);
+ WORD *dst_bits = (WORD*)FreeImage_GetScanLine(dst, y);
+ for(unsigned x = 0; x < width; x++) {
+ // convert to grey
+ dst_bits[x] = (WORD)LUMA_REC709(src_bits[x].red, src_bits[x].green, src_bits[x].blue);
+ }
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ if(src != dib) {
+ FreeImage_Unload(src);
+ }
+
+ return dst;
+}
+
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