diff options
Diffstat (limited to 'plugins/AdvaImg/src/FreeImage/Conversion24.cpp')
| -rw-r--r-- | plugins/AdvaImg/src/FreeImage/Conversion24.cpp | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/plugins/AdvaImg/src/FreeImage/Conversion24.cpp b/plugins/AdvaImg/src/FreeImage/Conversion24.cpp new file mode 100644 index 0000000000..f04b946ef0 --- /dev/null +++ b/plugins/AdvaImg/src/FreeImage/Conversion24.cpp @@ -0,0 +1,214 @@ +// ==========================================================
+// Bitmap conversion routines
+//
+// Design and implementation by
+// - Floris van den Berg (flvdberg@wxs.nl)
+// - Dale Larson (dlarson@norsesoft.com)
+// - Hervé Drolon (drolon@infonie.fr)
+// - Jani Kajala (janik@remedy.fi)
+//
+// 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"
+
+// ----------------------------------------------------------
+// internal conversions X to 24 bits
+// ----------------------------------------------------------
+
+void DLL_CALLCONV
+FreeImage_ConvertLine1To24(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) {
+ for (int cols = 0; cols < width_in_pixels; cols++) {
+ BYTE index = (source[cols >> 3] & (0x80 >> (cols & 0x07))) != 0 ? 1 : 0;
+
+ target[FI_RGBA_BLUE] = palette[index].rgbBlue;
+ target[FI_RGBA_GREEN] = palette[index].rgbGreen;
+ target[FI_RGBA_RED] = palette[index].rgbRed;
+
+ target += 3;
+ }
+}
+
+void DLL_CALLCONV
+FreeImage_ConvertLine4To24(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) {
+ BOOL low_nibble = FALSE;
+ int x = 0;
+
+ for (int cols = 0; cols < width_in_pixels; ++cols ) {
+ if (low_nibble) {
+ target[FI_RGBA_BLUE] = palette[LOWNIBBLE(source[x])].rgbBlue;
+ target[FI_RGBA_GREEN] = palette[LOWNIBBLE(source[x])].rgbGreen;
+ target[FI_RGBA_RED] = palette[LOWNIBBLE(source[x])].rgbRed;
+
+ x++;
+ } else {
+ target[FI_RGBA_BLUE] = palette[HINIBBLE(source[x]) >> 4].rgbBlue;
+ target[FI_RGBA_GREEN] = palette[HINIBBLE(source[x]) >> 4].rgbGreen;
+ target[FI_RGBA_RED] = palette[HINIBBLE(source[x]) >> 4].rgbRed;
+ }
+
+ low_nibble = !low_nibble;
+
+ target += 3;
+ }
+}
+
+void DLL_CALLCONV
+FreeImage_ConvertLine8To24(BYTE *target, BYTE *source, int width_in_pixels, RGBQUAD *palette) {
+ for (int cols = 0; cols < width_in_pixels; cols++) {
+ target[FI_RGBA_BLUE] = palette[source[cols]].rgbBlue;
+ target[FI_RGBA_GREEN] = palette[source[cols]].rgbGreen;
+ target[FI_RGBA_RED] = palette[source[cols]].rgbRed;
+
+ target += 3;
+ }
+}
+
+void DLL_CALLCONV
+FreeImage_ConvertLine16To24_555(BYTE *target, BYTE *source, int width_in_pixels) {
+ WORD *bits = (WORD *)source;
+
+ for (int cols = 0; cols < width_in_pixels; cols++) {
+ target[FI_RGBA_RED] = (BYTE)((((bits[cols] & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) * 0xFF) / 0x1F);
+ target[FI_RGBA_GREEN] = (BYTE)((((bits[cols] & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) * 0xFF) / 0x1F);
+ target[FI_RGBA_BLUE] = (BYTE)((((bits[cols] & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) * 0xFF) / 0x1F);
+
+ target += 3;
+ }
+}
+
+void DLL_CALLCONV
+FreeImage_ConvertLine16To24_565(BYTE *target, BYTE *source, int width_in_pixels) {
+ WORD *bits = (WORD *)source;
+
+ for (int cols = 0; cols < width_in_pixels; cols++) {
+ target[FI_RGBA_RED] = (BYTE)((((bits[cols] & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) * 0xFF) / 0x1F);
+ target[FI_RGBA_GREEN] = (BYTE)((((bits[cols] & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) * 0xFF) / 0x3F);
+ target[FI_RGBA_BLUE] = (BYTE)((((bits[cols] & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) * 0xFF) / 0x1F);
+
+ target += 3;
+ }
+}
+
+void DLL_CALLCONV
+FreeImage_ConvertLine32To24(BYTE *target, BYTE *source, int width_in_pixels) {
+ for (int cols = 0; cols < width_in_pixels; cols++) {
+ target[FI_RGBA_BLUE] = source[FI_RGBA_BLUE];
+ target[FI_RGBA_GREEN] = source[FI_RGBA_GREEN];
+ target[FI_RGBA_RED] = source[FI_RGBA_RED];
+
+ target += 3;
+ source += 4;
+ }
+}
+
+// ----------------------------------------------------------
+// smart convert X to 24 bits
+// ----------------------------------------------------------
+
+FIBITMAP * DLL_CALLCONV
+FreeImage_ConvertTo24Bits(FIBITMAP *dib) {
+ if (!FreeImage_HasPixels(dib)) return NULL;
+
+ const unsigned bpp = FreeImage_GetBPP(dib);
+
+ const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dib);
+ if ((image_type != FIT_BITMAP) && (image_type != FIT_RGB16)) {
+ return NULL;
+ }
+
+ if (bpp != 24) {
+ const int width = FreeImage_GetWidth(dib);
+ const int height = FreeImage_GetHeight(dib);
+ FIBITMAP *new_dib = FreeImage_Allocate(width, height, 24, FI_RGBA_RED_MASK, FI_RGBA_GREEN_MASK, FI_RGBA_BLUE_MASK);
+
+ if(new_dib == NULL) {
+ return NULL;
+ }
+
+ // copy metadata from src to dst
+ FreeImage_CloneMetadata(new_dib, dib);
+
+ switch(bpp) {
+ case 1 :
+ {
+ for (int rows = 0; rows < height; rows++) {
+ FreeImage_ConvertLine1To24(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib));
+ }
+ return new_dib;
+ }
+
+ case 4 :
+ {
+ for (int rows = 0; rows < height; rows++) {
+ FreeImage_ConvertLine4To24(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib));
+ }
+ return new_dib;
+ }
+
+ case 8 :
+ {
+ for (int rows = 0; rows < height; rows++) {
+ FreeImage_ConvertLine8To24(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width, FreeImage_GetPalette(dib));
+ }
+ return new_dib;
+ }
+
+ case 16 :
+ {
+ for (int rows = 0; rows < height; rows++) {
+ if ((FreeImage_GetRedMask(dib) == FI16_565_RED_MASK) && (FreeImage_GetGreenMask(dib) == FI16_565_GREEN_MASK) && (FreeImage_GetBlueMask(dib) == FI16_565_BLUE_MASK)) {
+ FreeImage_ConvertLine16To24_565(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width);
+ } else {
+ // includes case where all the masks are 0
+ FreeImage_ConvertLine16To24_555(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width);
+ }
+ }
+ return new_dib;
+ }
+
+ case 32 :
+ {
+ for (int rows = 0; rows < height; rows++) {
+ FreeImage_ConvertLine32To24(FreeImage_GetScanLine(new_dib, rows), FreeImage_GetScanLine(dib, rows), width);
+ }
+ return new_dib;
+ }
+
+ case 48:
+ {
+ const unsigned src_pitch = FreeImage_GetPitch(dib);
+ const unsigned dst_pitch = FreeImage_GetPitch(new_dib);
+ const BYTE *src_bits = FreeImage_GetBits(dib);
+ BYTE *dst_bits = FreeImage_GetBits(new_dib);
+ for (int rows = 0; rows < height; rows++) {
+ const FIRGB16 *src_pixel = (FIRGB16*)src_bits;
+ RGBTRIPLE *dst_pixel = (RGBTRIPLE*)dst_bits;
+ for(int cols = 0; cols < width; cols++) {
+ dst_pixel[cols].rgbtRed = (BYTE)(src_pixel[cols].red >> 8);
+ dst_pixel[cols].rgbtGreen = (BYTE)(src_pixel[cols].green >> 8);
+ dst_pixel[cols].rgbtBlue = (BYTE)(src_pixel[cols].blue >> 8);
+ }
+ src_bits += src_pitch;
+ dst_bits += dst_pitch;
+ }
+ return new_dib;
+ }
+ }
+ }
+
+ return FreeImage_Clone(dib);
+}
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