diff options
Diffstat (limited to 'plugins/FreeImage/Source/FreeImageToolkit/CopyPaste.cpp')
| -rw-r--r-- | plugins/FreeImage/Source/FreeImageToolkit/CopyPaste.cpp | 747 |
1 files changed, 0 insertions, 747 deletions
diff --git a/plugins/FreeImage/Source/FreeImageToolkit/CopyPaste.cpp b/plugins/FreeImage/Source/FreeImageToolkit/CopyPaste.cpp deleted file mode 100644 index 753fdc736e..0000000000 --- a/plugins/FreeImage/Source/FreeImageToolkit/CopyPaste.cpp +++ /dev/null @@ -1,747 +0,0 @@ -// ========================================================== -// Copy / paste routines -// -// - Floris van den Berg (flvdberg@wxs.nl) -// - Alexander Dymerets (sashad@te.net.ua) -// - Hervé Drolon (drolon@infonie.fr) -// - Manfred Tausch (manfred.tausch@t-online.de) -// - Riley McNiff (rmcniff@marexgroup.com) -// -// 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" - -// ---------------------------------------------------------- -// Helpers -// ---------------------------------------------------------- - -///////////////////////////////////////////////////////////// -// Alpha blending / combine functions - -// ---------------------------------------------------------- -/// 1-bit -static BOOL Combine1(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -/// 4-bit -static BOOL Combine4(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -/// 8-bit -static BOOL Combine8(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -/// 16-bit 555 -static BOOL Combine16_555(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -/// 16-bit 565 -static BOOL Combine16_565(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -/// 24-bit -static BOOL Combine24(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -/// 32- bit -static BOOL Combine32(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha); -// ---------------------------------------------------------- - -// ---------------------------------------------------------- -// 1-bit -// ---------------------------------------------------------- - -static BOOL -Combine1(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - BOOL value; - - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 1) || (FreeImage_GetBPP(src_dib) != 1)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - // combine images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - for(unsigned cols = 0; cols < FreeImage_GetWidth(src_dib); cols++) { - // get bit at (rows, cols) in src image - value = (src_bits[cols >> 3] & (0x80 >> (cols & 0x07))) != 0; - // set bit at (rows, x+cols) in dst image - value ? dst_bits[(x + cols) >> 3] |= (0x80 >> ((x + cols) & 0x7)) : dst_bits[(x + cols) >> 3] &= (0xFF7F >> ((x + cols) & 0x7)); - } - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - - return TRUE; -} - -// ---------------------------------------------------------- -// 4-bit -// ---------------------------------------------------------- - -static BOOL -Combine4(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - - int swapTable[16]; - BOOL bOddStart, bOddEnd; - - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 4) || (FreeImage_GetBPP(src_dib) != 4)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - // get src and dst palettes - RGBQUAD *src_pal = FreeImage_GetPalette(src_dib); - RGBQUAD *dst_pal = FreeImage_GetPalette(dst_dib); - if (src_pal == NULL || dst_pal == NULL) { - return FALSE; - } - - // build a swap table for the closest color match from the source palette to the destination palette - - for (int i = 0; i < 16; i++) { - WORD min_diff = (WORD)-1; - - for (int j = 0; j < 16; j++) { - // calculates the color difference using a Manhattan distance - WORD abs_diff = (WORD)( - abs(src_pal[i].rgbBlue - dst_pal[j].rgbBlue) - + abs(src_pal[i].rgbGreen - dst_pal[j].rgbGreen) - + abs(src_pal[i].rgbRed - dst_pal[j].rgbRed) - ); - - if (abs_diff < min_diff) { - swapTable[i] = j; - min_diff = abs_diff; - if (abs_diff == 0) { - break; - } - } - } - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)) + (x >> 1); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - // combine images - - // allocate space for our temporary row - unsigned src_line = FreeImage_GetLine(src_dib); - unsigned src_width = FreeImage_GetWidth(src_dib); - unsigned src_height = FreeImage_GetHeight(src_dib); - - BYTE *buffer = (BYTE *)malloc(src_line * sizeof(BYTE)); - if (buffer == NULL) { - return FALSE; - } - - bOddStart = (x & 0x01) ? TRUE : FALSE; - - if ((bOddStart && !(src_width & 0x01)) || (!bOddStart && (src_width & 0x01))) { - bOddEnd = TRUE; - } - else { - bOddEnd = FALSE; - } - - for(unsigned rows = 0; rows < src_height; rows++) { - memcpy(buffer, src_bits, src_line); - - // change the values in the temp row to be those from the swap table - - for (unsigned cols = 0; cols < src_line; cols++) { - buffer[cols] = (BYTE)((swapTable[HINIBBLE(buffer[cols]) >> 4] << 4) + swapTable[LOWNIBBLE(buffer[cols])]); - } - - if (bOddStart) { - buffer[0] = HINIBBLE(dst_bits[0]) + LOWNIBBLE(buffer[0]); - } - - if (bOddEnd) { - buffer[src_line - 1] = HINIBBLE(buffer[src_line - 1]) + LOWNIBBLE(dst_bits[src_line - 1]); - } - - memcpy(dst_bits, buffer, src_line); - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - - free(buffer); - - return TRUE; - -} - -// ---------------------------------------------------------- -// 8-bit -// ---------------------------------------------------------- - -static BOOL -Combine8(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 8) || (FreeImage_GetBPP(src_dib) != 8)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)) + (x); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - if(alpha > 255) { - // combine images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - memcpy(dst_bits, src_bits, FreeImage_GetLine(src_dib)); - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } else { - // alpha blend images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - for (unsigned cols = 0; cols < FreeImage_GetLine(src_dib); cols++) { - dst_bits[cols] = (BYTE)(((src_bits[cols] - dst_bits[cols]) * alpha + (dst_bits[cols] << 8)) >> 8); - } - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } - - return TRUE; -} - -// ---------------------------------------------------------- -// 16-bit -// ---------------------------------------------------------- - -static BOOL -Combine16_555(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 16) || (FreeImage_GetBPP(src_dib) != 16)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)) + (x * 2); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - if (alpha > 255) { - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - memcpy(dst_bits, src_bits, FreeImage_GetLine(src_dib)); - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } else { - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - for(unsigned cols = 0; cols < FreeImage_GetLine(src_dib); cols += 2) { - RGBTRIPLE color_s; - RGBTRIPLE color_t; - - WORD *tmp1 = (WORD *)&dst_bits[cols]; - WORD *tmp2 = (WORD *)&src_bits[cols]; - - // convert 16-bit colors to 24-bit - - color_s.rgbtRed = (BYTE)(((*tmp1 & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) << 3); - color_s.rgbtGreen = (BYTE)(((*tmp1 & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) << 3); - color_s.rgbtBlue = (BYTE)(((*tmp1 & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) << 3); - - color_t.rgbtRed = (BYTE)(((*tmp2 & FI16_555_RED_MASK) >> FI16_555_RED_SHIFT) << 3); - color_t.rgbtGreen = (BYTE)(((*tmp2 & FI16_555_GREEN_MASK) >> FI16_555_GREEN_SHIFT) << 3); - color_t.rgbtBlue = (BYTE)(((*tmp2 & FI16_555_BLUE_MASK) >> FI16_555_BLUE_SHIFT) << 3); - - // alpha blend - - color_s.rgbtRed = (BYTE)(((color_t.rgbtRed - color_s.rgbtRed) * alpha + (color_s.rgbtRed << 8)) >> 8); - color_s.rgbtGreen = (BYTE)(((color_t.rgbtGreen - color_s.rgbtGreen) * alpha + (color_s.rgbtGreen << 8)) >> 8); - color_s.rgbtBlue = (BYTE)(((color_t.rgbtBlue - color_s.rgbtBlue) * alpha + (color_s.rgbtBlue << 8)) >> 8); - - // convert 24-bit color back to 16-bit - - *tmp1 = RGB555(color_s.rgbtRed, color_s.rgbtGreen, color_s.rgbtBlue); - } - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } - - return TRUE; -} - -static BOOL -Combine16_565(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 16) || (FreeImage_GetBPP(src_dib) != 16)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)) + (x * 2); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - if (alpha > 255) { - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - memcpy(dst_bits, src_bits, FreeImage_GetLine(src_dib)); - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } else { - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - for(unsigned cols = 0; cols < FreeImage_GetLine(src_dib); cols += 2) { - RGBTRIPLE color_s; - RGBTRIPLE color_t; - - WORD *tmp1 = (WORD *)&dst_bits[cols]; - WORD *tmp2 = (WORD *)&src_bits[cols]; - - // convert 16-bit colors to 24-bit - - color_s.rgbtRed = (BYTE)(((*tmp1 & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) << 3); - color_s.rgbtGreen = (BYTE)(((*tmp1 & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) << 2); - color_s.rgbtBlue = (BYTE)(((*tmp1 & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) << 3); - - color_t.rgbtRed = (BYTE)(((*tmp2 & FI16_565_RED_MASK) >> FI16_565_RED_SHIFT) << 3); - color_t.rgbtGreen = (BYTE)(((*tmp2 & FI16_565_GREEN_MASK) >> FI16_565_GREEN_SHIFT) << 2); - color_t.rgbtBlue = (BYTE)(((*tmp2 & FI16_565_BLUE_MASK) >> FI16_565_BLUE_SHIFT) << 3); - - // alpha blend - - color_s.rgbtRed = (BYTE)(((color_t.rgbtRed - color_s.rgbtRed) * alpha + (color_s.rgbtRed << 8)) >> 8); - color_s.rgbtGreen = (BYTE)(((color_t.rgbtGreen - color_s.rgbtGreen) * alpha + (color_s.rgbtGreen << 8)) >> 8); - color_s.rgbtBlue = (BYTE)(((color_t.rgbtBlue - color_s.rgbtBlue) * alpha + (color_s.rgbtBlue << 8)) >> 8); - - // convert 24-bit color back to 16-bit - - *tmp1 = RGB565(color_s.rgbtRed, color_s.rgbtGreen, color_s.rgbtBlue); - } - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } - - return TRUE; -} - -// ---------------------------------------------------------- -// 24-bit -// ---------------------------------------------------------- - -static BOOL -Combine24(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 24) || (FreeImage_GetBPP(src_dib) != 24)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)) + (x * 3); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - if(alpha > 255) { - // combine images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - memcpy(dst_bits, src_bits, FreeImage_GetLine(src_dib)); - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } else { - // alpha blend images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - for (unsigned cols = 0; cols < FreeImage_GetLine(src_dib); cols++) { - dst_bits[cols] = (BYTE)(((src_bits[cols] - dst_bits[cols]) * alpha + (dst_bits[cols] << 8)) >> 8); - } - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } - - return TRUE; -} - -// ---------------------------------------------------------- -// 32-bit -// ---------------------------------------------------------- - -static BOOL -Combine32(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y, unsigned alpha) { - // check the bit depth of src and dst images - if ((FreeImage_GetBPP(dst_dib) != 32) || (FreeImage_GetBPP(src_dib) != 32)) { - return FALSE; - } - - // check the size of src image - if ((x + FreeImage_GetWidth(src_dib) > FreeImage_GetWidth(dst_dib)) || (y + FreeImage_GetHeight(src_dib) > FreeImage_GetHeight(dst_dib))) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((FreeImage_GetHeight(dst_dib) - FreeImage_GetHeight(src_dib) - y) * FreeImage_GetPitch(dst_dib)) + (x * 4); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - if (alpha > 255) { - // combine images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - memcpy(dst_bits, src_bits, FreeImage_GetLine(src_dib)); - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } else { - // alpha blend images - for(unsigned rows = 0; rows < FreeImage_GetHeight(src_dib); rows++) { - for(unsigned cols = 0; cols < FreeImage_GetLine(src_dib); cols++) { - dst_bits[cols] = (BYTE)(((src_bits[cols] - dst_bits[cols]) * alpha + (dst_bits[cols] << 8)) >> 8); - } - - dst_bits += FreeImage_GetPitch(dst_dib); - src_bits += FreeImage_GetPitch(src_dib); - } - } - - return TRUE; -} - -// ---------------------------------------------------------- -// Any type other than FIBITMAP -// ---------------------------------------------------------- - -static BOOL -CombineSameType(FIBITMAP *dst_dib, FIBITMAP *src_dib, unsigned x, unsigned y) { - // check the bit depth of src and dst images - if(FreeImage_GetImageType(dst_dib) != FreeImage_GetImageType(src_dib)) { - return FALSE; - } - - unsigned src_width = FreeImage_GetWidth(src_dib); - unsigned src_height = FreeImage_GetHeight(src_dib); - unsigned src_pitch = FreeImage_GetPitch(src_dib); - unsigned src_line = FreeImage_GetLine(src_dib); - unsigned dst_width = FreeImage_GetWidth(dst_dib); - unsigned dst_height = FreeImage_GetHeight(dst_dib); - unsigned dst_pitch = FreeImage_GetPitch(dst_dib); - - // check the size of src image - if ((x + src_width > dst_width) || (y + src_height > dst_height)) { - return FALSE; - } - - BYTE *dst_bits = FreeImage_GetBits(dst_dib) + ((dst_height - src_height - y) * dst_pitch) + (x * (src_line / src_width)); - BYTE *src_bits = FreeImage_GetBits(src_dib); - - // combine images - for(unsigned rows = 0; rows < src_height; rows++) { - memcpy(dst_bits, src_bits, src_line); - - dst_bits += dst_pitch; - src_bits += src_pitch; - } - - return TRUE; -} - -// ---------------------------------------------------------- -// FreeImage interface -// ---------------------------------------------------------- - -/** -Copy a sub part of the current image and returns it as a FIBITMAP*. -Works with any bitmap type. -@param left Specifies the left position of the cropped rectangle. -@param top Specifies the top position of the cropped rectangle. -@param right Specifies the right position of the cropped rectangle. -@param bottom Specifies the bottom position of the cropped rectangle. -@return Returns the subimage if successful, NULL otherwise. -*/ -FIBITMAP * DLL_CALLCONV -FreeImage_Copy(FIBITMAP *src, int left, int top, int right, int bottom) { - - if (!FreeImage_HasPixels(src)) - return NULL; - - // normalize the rectangle - if(right < left) { - INPLACESWAP(left, right); - } - if(bottom < top) { - INPLACESWAP(top, bottom); - } - // check the size of the sub image - int src_width = FreeImage_GetWidth(src); - int src_height = FreeImage_GetHeight(src); - if ((left < 0) || (right > src_width) || (top < 0) || (bottom > src_height)) { - return NULL; - } - - // allocate the sub image - unsigned bpp = FreeImage_GetBPP(src); - int dst_width = (right - left); - int dst_height = (bottom - top); - - FIBITMAP *dst = - FreeImage_AllocateT(FreeImage_GetImageType(src), - dst_width, - dst_height, - bpp, - FreeImage_GetRedMask(src), FreeImage_GetGreenMask(src), FreeImage_GetBlueMask(src)); - - if(NULL == dst) return NULL; - - // get the dimensions - int dst_line = FreeImage_GetLine(dst); - int dst_pitch = FreeImage_GetPitch(dst); - int src_pitch = FreeImage_GetPitch(src); - - // get the pointers to the bits and such - - BYTE *src_bits = FreeImage_GetScanLine(src, src_height - top - dst_height); - switch(bpp) { - case 1: - // point to x = 0 - break; - - case 4: - // point to x = 0 - break; - - default: - { - // calculate the number of bytes per pixel - unsigned bytespp = FreeImage_GetLine(src) / FreeImage_GetWidth(src); - // point to x = left - src_bits += left * bytespp; - } - break; - } - - // point to x = 0 - BYTE *dst_bits = FreeImage_GetBits(dst); - - // copy the palette - - memcpy(FreeImage_GetPalette(dst), FreeImage_GetPalette(src), FreeImage_GetColorsUsed(src) * sizeof(RGBQUAD)); - - // copy the bits - if(bpp == 1) { - BOOL value; - unsigned y_src, y_dst; - - for(int y = 0; y < dst_height; y++) { - y_src = y * src_pitch; - y_dst = y * dst_pitch; - for(int x = 0; x < dst_width; x++) { - // get bit at (y, x) in src image - value = (src_bits[y_src + ((left+x) >> 3)] & (0x80 >> ((left+x) & 0x07))) != 0; - // set bit at (y, x) in dst image - value ? dst_bits[y_dst + (x >> 3)] |= (0x80 >> (x & 0x7)) : dst_bits[y_dst + (x >> 3)] &= (0xff7f >> (x & 0x7)); - } - } - } - - else if(bpp == 4) { - BYTE shift, value; - unsigned y_src, y_dst; - - for(int y = 0; y < dst_height; y++) { - y_src = y * src_pitch; - y_dst = y * dst_pitch; - for(int x = 0; x < dst_width; x++) { - // get nibble at (y, x) in src image - shift = (BYTE)((1 - (left+x) % 2) << 2); - value = (src_bits[y_src + ((left+x) >> 1)] & (0x0F << shift)) >> shift; - // set nibble at (y, x) in dst image - shift = (BYTE)((1 - x % 2) << 2); - dst_bits[y_dst + (x >> 1)] &= ~(0x0F << shift); - dst_bits[y_dst + (x >> 1)] |= ((value & 0x0F) << shift); - } - } - } - - else if(bpp >= 8) { - for(int y = 0; y < dst_height; y++) { - memcpy(dst_bits + (y * dst_pitch), src_bits + (y * src_pitch), dst_line); - } - } - - // copy metadata from src to dst - FreeImage_CloneMetadata(dst, src); - - // copy transparency table - FreeImage_SetTransparencyTable(dst, FreeImage_GetTransparencyTable(src), FreeImage_GetTransparencyCount(src)); - - // copy background color - RGBQUAD bkcolor; - if ( FreeImage_GetBackgroundColor(src, &bkcolor)) { - FreeImage_SetBackgroundColor(dst, &bkcolor); - } - - // clone resolution - FreeImage_SetDotsPerMeterX(dst, FreeImage_GetDotsPerMeterX(src)); - FreeImage_SetDotsPerMeterY(dst, FreeImage_GetDotsPerMeterY(src)); - - // clone ICC profile - FIICCPROFILE *src_profile = FreeImage_GetICCProfile(src); - FIICCPROFILE *dst_profile = FreeImage_CreateICCProfile(dst, src_profile->data, src_profile->size); - dst_profile->flags = src_profile->flags; - - return dst; -} - -/** -Alpha blend or combine a sub part image with the current image. -The bit depth of dst bitmap must be greater than or equal to the bit depth of src. -Upper promotion of src is done internally. Supported bit depth equals to 1, 4, 8, 16, 24 or 32. -@param src Source subimage -@param left Specifies the left position of the sub image. -@param top Specifies the top position of the sub image. -@param alpha Alpha blend factor. The source and destination images are alpha blended if -alpha = 0..255. If alpha > 255, then the source image is combined to the destination image. -@return Returns TRUE if successful, FALSE otherwise. -*/ -BOOL DLL_CALLCONV -FreeImage_Paste(FIBITMAP *dst, FIBITMAP *src, int left, int top, int alpha) { - BOOL bResult = FALSE; - - if (!FreeImage_HasPixels(src) || !FreeImage_HasPixels(dst)) return FALSE; - - // check the size of src image - if ((left < 0) || (top < 0)) { - return FALSE; - } - if ((left + FreeImage_GetWidth(src) > FreeImage_GetWidth(dst)) || (top + FreeImage_GetHeight(src) > FreeImage_GetHeight(dst))) { - return FALSE; - } - - // check data type - const FREE_IMAGE_TYPE image_type = FreeImage_GetImageType(dst); - if(image_type != FreeImage_GetImageType(src)) { - // no conversion between data type is done - return FALSE; - } - - if(image_type == FIT_BITMAP) { - FIBITMAP *clone = NULL; - - // check the bit depth of src and dst images - unsigned bpp_src = FreeImage_GetBPP(src); - unsigned bpp_dst = FreeImage_GetBPP(dst); - BOOL isRGB565 = FALSE; - - if ((FreeImage_GetRedMask(dst) == FI16_565_RED_MASK) && (FreeImage_GetGreenMask(dst) == FI16_565_GREEN_MASK) && (FreeImage_GetBlueMask(dst) == FI16_565_BLUE_MASK)) { - isRGB565 = TRUE; - } else { - // includes case where all the masks are 0 - isRGB565 = FALSE; - } - - // perform promotion if needed - if(bpp_dst == bpp_src) { - clone = src; - } else if(bpp_dst > bpp_src) { - // perform promotion - switch(bpp_dst) { - case 4: - clone = FreeImage_ConvertTo4Bits(src); - break; - case 8: - clone = FreeImage_ConvertTo8Bits(src); - break; - case 16: - if (isRGB565) { - clone = FreeImage_ConvertTo16Bits565(src); - } else { - // includes case where all the masks are 0 - clone = FreeImage_ConvertTo16Bits555(src); - } - break; - case 24: - clone = FreeImage_ConvertTo24Bits(src); - break; - case 32: - clone = FreeImage_ConvertTo32Bits(src); - break; - default: - return FALSE; - } - } else { - return FALSE; - } - - if (!clone) return FALSE; - - // paste src to dst - switch(FreeImage_GetBPP(dst)) { - case 1: - bResult = Combine1(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - break; - case 4: - bResult = Combine4(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - break; - case 8: - bResult = Combine8(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - break; - case 16: - if (isRGB565) { - bResult = Combine16_565(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - } else { - // includes case where all the masks are 0 - bResult = Combine16_555(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - } - break; - case 24: - bResult = Combine24(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - break; - case 32: - bResult = Combine32(dst, clone, (unsigned)left, (unsigned)top, (unsigned)alpha); - break; - } - - if(clone != src) - FreeImage_Unload(clone); - - } - else { // any type other than FITBITMAP - bResult = CombineSameType(dst, src, (unsigned)left, (unsigned)top); - } - - return bResult; -} - - |