diff options
Diffstat (limited to 'plugins/FreeImage/Source/FreeImageToolkit/Flip.cpp')
-rw-r--r-- | plugins/FreeImage/Source/FreeImageToolkit/Flip.cpp | 332 |
1 files changed, 166 insertions, 166 deletions
diff --git a/plugins/FreeImage/Source/FreeImageToolkit/Flip.cpp b/plugins/FreeImage/Source/FreeImageToolkit/Flip.cpp index 2f0f7d52e4..c7898a7813 100644 --- a/plugins/FreeImage/Source/FreeImageToolkit/Flip.cpp +++ b/plugins/FreeImage/Source/FreeImageToolkit/Flip.cpp @@ -1,166 +1,166 @@ -// ==========================================================
-// Flipping routines
-//
-// Design and implementation by
-// - Floris van den Berg (flvdberg@wxs.nl)
-// - Hervé Drolon (drolon@infonie.fr)
-// - Jim Keir (jimkeir@users.sourceforge.net)
-//
-// 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"
-
-/**
-Flip the image horizontally along the vertical axis.
-@param src Input image to be processed.
-@return Returns TRUE if successful, FALSE otherwise.
-*/
-BOOL DLL_CALLCONV
-FreeImage_FlipHorizontal(FIBITMAP *src) {
- if (!FreeImage_HasPixels(src)) return FALSE;
-
- unsigned line = FreeImage_GetLine(src);
- unsigned width = FreeImage_GetWidth(src);
- unsigned height = FreeImage_GetHeight(src);
-
- unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src);
-
- // copy between aligned memories
- BYTE *new_bits = (BYTE*)FreeImage_Aligned_Malloc(line * sizeof(BYTE), FIBITMAP_ALIGNMENT);
- if (!new_bits) return FALSE;
-
- // mirror the buffer
-
- for (unsigned y = 0; y < height; y++) {
- BYTE *bits = FreeImage_GetScanLine(src, y);
- memcpy(new_bits, bits, line);
-
- switch (FreeImage_GetBPP(src)) {
- case 1 :
- {
- for(unsigned x = 0; x < width; x++) {
- // get pixel at (x, y)
- BOOL value = (new_bits[x >> 3] & (0x80 >> (x & 0x07))) != 0;
- // set pixel at (new_x, y)
- unsigned new_x = width - 1 - x;
- value ? bits[new_x >> 3] |= (0x80 >> (new_x & 0x7)) : bits[new_x >> 3] &= (0xff7f >> (new_x & 0x7));
- }
- }
- break;
-
- case 4 :
- {
- for(unsigned c = 0; c < line; c++) {
- bits[c] = new_bits[line - c - 1];
-
- BYTE nibble = (bits[c] & 0xF0) >> 4;
-
- bits[c] = bits[c] << 4;
- bits[c] |= nibble;
- }
- }
- break;
-
- case 8:
- {
- BYTE *dst_data = (BYTE*) bits;
- BYTE *src_data = (BYTE*) (new_bits + line - bytespp);
- for(unsigned c = 0; c < width; c++) {
- *dst_data++ = *src_data--;
- }
- }
- break;
-
- case 16:
- {
- WORD *dst_data = (WORD*) bits;
- WORD *src_data = (WORD*) (new_bits + line - bytespp);
- for(unsigned c = 0; c < width; c++) {
- *dst_data++ = *src_data--;
- }
- }
- break;
-
- case 24 :
- case 32 :
- case 48:
- case 64:
- case 96:
- case 128:
- {
- BYTE *dst_data = (BYTE*) bits;
- BYTE *src_data = (BYTE*) (new_bits + line - bytespp);
- for(unsigned c = 0; c < width; c++) {
- for(unsigned k = 0; k < bytespp; k++) {
- *dst_data++ = src_data[k];
- }
- src_data -= bytespp;
- }
- }
- break;
-
- }
- }
-
- FreeImage_Aligned_Free(new_bits);
-
- return TRUE;
-}
-
-
-/**
-Flip the image vertically along the horizontal axis.
-@param src Input image to be processed.
-@return Returns TRUE if successful, FALSE otherwise.
-*/
-
-BOOL DLL_CALLCONV
-FreeImage_FlipVertical(FIBITMAP *src) {
- BYTE *From, *Mid;
-
- if (!FreeImage_HasPixels(src)) return FALSE;
-
- // swap the buffer
-
- unsigned pitch = FreeImage_GetPitch(src);
- unsigned height = FreeImage_GetHeight(src);
-
- // copy between aligned memories
- Mid = (BYTE*)FreeImage_Aligned_Malloc(pitch * sizeof(BYTE), FIBITMAP_ALIGNMENT);
- if (!Mid) return FALSE;
-
- From = FreeImage_GetBits(src);
-
- unsigned line_s = 0;
- unsigned line_t = (height-1) * pitch;
-
- for(unsigned y = 0; y < height/2; y++) {
-
- memcpy(Mid, From + line_s, pitch);
- memcpy(From + line_s, From + line_t, pitch);
- memcpy(From + line_t, Mid, pitch);
-
- line_s += pitch;
- line_t -= pitch;
-
- }
-
- FreeImage_Aligned_Free(Mid);
-
- return TRUE;
-}
-
+// ========================================================== +// Flipping routines +// +// Design and implementation by +// - Floris van den Berg (flvdberg@wxs.nl) +// - Hervé Drolon (drolon@infonie.fr) +// - Jim Keir (jimkeir@users.sourceforge.net) +// +// 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" + +/** +Flip the image horizontally along the vertical axis. +@param src Input image to be processed. +@return Returns TRUE if successful, FALSE otherwise. +*/ +BOOL DLL_CALLCONV +FreeImage_FlipHorizontal(FIBITMAP *src) { + if (!FreeImage_HasPixels(src)) return FALSE; + + unsigned line = FreeImage_GetLine(src); + unsigned width = FreeImage_GetWidth(src); + unsigned height = FreeImage_GetHeight(src); + + unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src); + + // copy between aligned memories + BYTE *new_bits = (BYTE*)FreeImage_Aligned_Malloc(line * sizeof(BYTE), FIBITMAP_ALIGNMENT); + if (!new_bits) return FALSE; + + // mirror the buffer + + for (unsigned y = 0; y < height; y++) { + BYTE *bits = FreeImage_GetScanLine(src, y); + memcpy(new_bits, bits, line); + + switch (FreeImage_GetBPP(src)) { + case 1 : + { + for(unsigned x = 0; x < width; x++) { + // get pixel at (x, y) + BOOL value = (new_bits[x >> 3] & (0x80 >> (x & 0x07))) != 0; + // set pixel at (new_x, y) + unsigned new_x = width - 1 - x; + value ? bits[new_x >> 3] |= (0x80 >> (new_x & 0x7)) : bits[new_x >> 3] &= (0xff7f >> (new_x & 0x7)); + } + } + break; + + case 4 : + { + for(unsigned c = 0; c < line; c++) { + bits[c] = new_bits[line - c - 1]; + + BYTE nibble = (bits[c] & 0xF0) >> 4; + + bits[c] = bits[c] << 4; + bits[c] |= nibble; + } + } + break; + + case 8: + { + BYTE *dst_data = (BYTE*) bits; + BYTE *src_data = (BYTE*) (new_bits + line - bytespp); + for(unsigned c = 0; c < width; c++) { + *dst_data++ = *src_data--; + } + } + break; + + case 16: + { + WORD *dst_data = (WORD*) bits; + WORD *src_data = (WORD*) (new_bits + line - bytespp); + for(unsigned c = 0; c < width; c++) { + *dst_data++ = *src_data--; + } + } + break; + + case 24 : + case 32 : + case 48: + case 64: + case 96: + case 128: + { + BYTE *dst_data = (BYTE*) bits; + BYTE *src_data = (BYTE*) (new_bits + line - bytespp); + for(unsigned c = 0; c < width; c++) { + for(unsigned k = 0; k < bytespp; k++) { + *dst_data++ = src_data[k]; + } + src_data -= bytespp; + } + } + break; + + } + } + + FreeImage_Aligned_Free(new_bits); + + return TRUE; +} + + +/** +Flip the image vertically along the horizontal axis. +@param src Input image to be processed. +@return Returns TRUE if successful, FALSE otherwise. +*/ + +BOOL DLL_CALLCONV +FreeImage_FlipVertical(FIBITMAP *src) { + BYTE *From, *Mid; + + if (!FreeImage_HasPixels(src)) return FALSE; + + // swap the buffer + + unsigned pitch = FreeImage_GetPitch(src); + unsigned height = FreeImage_GetHeight(src); + + // copy between aligned memories + Mid = (BYTE*)FreeImage_Aligned_Malloc(pitch * sizeof(BYTE), FIBITMAP_ALIGNMENT); + if (!Mid) return FALSE; + + From = FreeImage_GetBits(src); + + unsigned line_s = 0; + unsigned line_t = (height-1) * pitch; + + for(unsigned y = 0; y < height/2; y++) { + + memcpy(Mid, From + line_s, pitch); + memcpy(From + line_s, From + line_t, pitch); + memcpy(From + line_t, Mid, pitch); + + line_s += pitch; + line_t -= pitch; + + } + + FreeImage_Aligned_Free(Mid); + + return TRUE; +} + |