diff --git a/pipi/Makefile.am b/pipi/Makefile.am index 094c8bd..91876c0 100644 --- a/pipi/Makefile.am +++ b/pipi/Makefile.am @@ -112,6 +112,11 @@ codec_libs += -lgdi32 codec_sources += codec/gdi.c endif +if USE_GDIPLUS +codec_libs += -lgdiplus +codec_sources += codec/gdiplus.cpp +endif + if USE_COCOA codec_objcflags = -I"/Developer//SDKs/MacOSX10.5.sdk/System/Library/Frameworks/QuartzCore.framework/Versions/A/Headers/" codec_libs += -framework Cocoa -framework IOKit -framework CoreFoundation -framework QuartzCore diff --git a/pipi/codec.c b/pipi/codec.c index f5d93f9..0d18eed 100644 --- a/pipi/codec.c +++ b/pipi/codec.c @@ -98,6 +98,10 @@ int pipi_save(pipi_image_t *img, const char *name) if(ret < 0) ret = pipi_save_gdi(img, name); #endif +#if USE_GDIPLUS + if(ret < 0) + ret = pipi_save_gdiplus(img, name); +#endif #if USE_COCOA if(ret < 0) ret = pipi_save_coreimage(img, name); diff --git a/pipi/codec/gdiplus.cpp b/pipi/codec/gdiplus.cpp new file mode 100755 index 0000000..2f80568 --- /dev/null +++ b/pipi/codec/gdiplus.cpp @@ -0,0 +1,144 @@ +/* + * libpipi Pathetic image processing interface library + * Copyright (c) 2004-2008 Sam Hocevar + * All Rights Reserved + * + * $Id$ + * + * This library is free software. It comes without any warranty, to + * the extent permitted by applicable law. You can redistribute it + * and/or modify it under the terms of the Do What The Fuck You Want + * To Public License, Version 2, as published by Sam Hocevar. See + * http://sam.zoy.org/wtfpl/COPYING for more details. + */ + +/* + * gdi.c: Windows GDI I/O functions (BMP only) + */ + +#include "config.h" + +#include +#include +#include + +#include + +#include "pipi.h" +#include "pipi_internals.h" + +extern "C" pipi_image_t *pipi_load_gdiplus(const char *name) +{ + BITMAPINFO binfo; + pipi_image_t *img; + pipi_pixels_t *p; + uint8_t *data; + HBITMAP hbmap; + HDC hdc; + + hbmap = (HBITMAP)LoadImage(NULL, name, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE); + if(!hbmap) + return NULL; + + hdc = CreateCompatibleDC(NULL); + SelectObject(hdc, hbmap); + + memset(&binfo, 0, sizeof(binfo)); + binfo.bmiHeader.biSize = sizeof(binfo.bmiHeader); + if(!GetDIBits(hdc, hbmap, 0, 0, 0, &binfo, DIB_RGB_COLORS)) + { + ReleaseDC(0, hdc); + DeleteObject(hbmap); + return NULL; + } + + img = pipi_new(binfo.bmiHeader.biWidth, binfo.bmiHeader.biHeight); + p = pipi_getpixels(img, PIPI_PIXELS_RGBA_C); + data = (uint8_t *)p->pixels; + + binfo.bmiHeader.biBitCount = 32; + binfo.bmiHeader.biCompression = BI_RGB; + binfo.bmiHeader.biHeight = - abs(binfo.bmiHeader.biHeight); + if(!GetDIBits(hdc, hbmap, 0, abs(binfo.bmiHeader.biHeight), data, + &binfo, DIB_RGB_COLORS)) + { + ReleaseDC(0, hdc); + DeleteObject(hbmap); + return NULL; + } + + /* FIXME: do we need to swap bytes? Apparently Vista doesn't need it, + * but we'd need a more thorough test. */ + + img->codec_priv = NULL; + + img->wrap = 0; + img->u8 = 1; + + ReleaseDC(0, hdc); + DeleteObject(hbmap); + + return img; +} + +extern "C" int pipi_save_gdiplus(pipi_image_t *img, const char *name) +{ + BITMAPINFOHEADER binfo; + BITMAPFILEHEADER bfheader; + uint8_t dummy[4] = { 0 }; + HANDLE hfile; + pipi_pixels_t *p; + DWORD ret = 0; + uint8_t *data; + int x, y, padding; + + p = pipi_getpixels(img, PIPI_PIXELS_RGBA_C); + data = (uint8_t *)p->pixels; + + padding = ((img->w * 3) + 3) / 4 * 4 - img->w * 3; + + memset(&binfo, 0, sizeof(binfo)); + binfo.biSize = sizeof(binfo); + binfo.biWidth = img->w; + binfo.biHeight = img->h; + binfo.biPlanes = 1; + binfo.biBitCount = 24; + binfo.biCompression = BI_RGB; + binfo.biSizeImage = (img->w * 3 + padding) * img->h; + + memset(&bfheader, 0, sizeof(bfheader)); + bfheader.bfType = 0x4D42; + bfheader.bfOffBits = sizeof(bfheader) + sizeof(binfo); + bfheader.bfSize = bfheader.bfOffBits + binfo.biSizeImage; + + /* We don’t even create the bitmap object, since we know exactly + * what kind of file we are saving. But later, when we support + * different depths and BMP options, we'll need to care about it. */ + hfile = CreateFile(name, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, + FILE_ATTRIBUTE_ARCHIVE, NULL); + if(!hfile) + return -1; + WriteFile(hfile, &bfheader, sizeof(bfheader), &ret, NULL); + WriteFile(hfile, &binfo, sizeof(binfo), &ret, NULL); + for(y = 0; y < img->h; y++) + { + for(x = 0; x < img->w; x++) + { + uint8_t tmp[3]; + tmp[0] = data[4 * (img->w * (img->h - 1 - y) + x) + 0]; + tmp[1] = data[4 * (img->w * (img->h - 1 - y) + x) + 1]; + tmp[2] = data[4 * (img->w * (img->h - 1 - y) + x) + 2]; + WriteFile(hfile, tmp, 3, &ret, NULL); + } + if(padding) + WriteFile(hfile, dummy, padding, &ret, NULL); + } + CloseHandle(hfile); + + return 0; +} + +/* + * XXX: The following functions are local. + */ + diff --git a/pipi/libpipi.vcproj b/pipi/libpipi.vcproj index f2d7282..8f9665f 100644 --- a/pipi/libpipi.vcproj +++ b/pipi/libpipi.vcproj @@ -271,6 +271,10 @@ RelativePath=".\codec\gdi.c" > + + diff --git a/win32/config.h b/win32/config.h index e068feb..17f139d 100644 --- a/win32/config.h +++ b/win32/config.h @@ -41,6 +41,7 @@ /* #undef USE_OPENCV */ /* #undef USE_IMLIB2 */ #define USE_GDI 1 +#define USE_GDIPLUS 1 /* #undef USE_COCOA */ /* #undef const */ #ifndef __cplusplus