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Diffstat (limited to 'plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp')
-rw-r--r--plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp386
1 files changed, 194 insertions, 192 deletions
diff --git a/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp b/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp
index e72d14cb83..a36a6d423f 100644
--- a/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp
+++ b/plugins/AdvaImg/src/FreeImage/ConversionFloat.cpp
@@ -1,192 +1,194 @@
-// ==========================================================
-// 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;
-}
-
+// ==========================================================
+// 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);
+ dst_pixel[x] = CLAMP(dst_pixel[x], 0.0F, 1.0F);
+ }
+ 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);
+ dst_pixel[x] = CLAMP(dst_pixel[x], 0.0F, 1.0F);
+ }
+ src_bits += src_pitch;
+ dst_bits += dst_pitch;
+ }
+ }
+ break;
+ }
+
+ if(src != dib) {
+ FreeImage_Unload(src);
+ }
+
+ return dst;
+}
+
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