2 * Copyright (C) 2007 Google (Evan Stade)
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
32 #include "gdiplus_private.h"
33 #include "wine/debug.h"
35 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
37 #define PIXELFORMATBPP(x) ((x) ? ((x) >> 8) & 255 : 24)
39 static INT ipicture_pixel_height(IPicture *pic)
44 IPicture_get_Height(pic, &y);
48 y = (UINT)(((REAL)y) * ((REAL)GetDeviceCaps(hdcref, LOGPIXELSY)) /
49 ((REAL)INCH_HIMETRIC));
55 static INT ipicture_pixel_width(IPicture *pic)
60 IPicture_get_Width(pic, &x);
64 x = (UINT)(((REAL)x) * ((REAL)GetDeviceCaps(hdcref, LOGPIXELSX)) /
65 ((REAL)INCH_HIMETRIC));
72 GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap* bitmap, INT x, INT y,
76 TRACE("%p %d %d %p\n", bitmap, x, y, color);
79 return InvalidParameter;
82 FIXME("not implemented\n");
86 return NotImplemented;
89 /* This function returns a pointer to an array of pixels that represents the
90 * bitmap. The *entire* bitmap is locked according to the lock mode specified by
91 * flags. It is correct behavior that a user who calls this function with write
92 * privileges can write to the whole bitmap (not just the area in rect).
94 * FIXME: only used portion of format is bits per pixel. */
95 GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
96 UINT flags, PixelFormat format, BitmapData* lockeddata)
99 INT stride, bitspp = PIXELFORMATBPP(format);
107 TRACE("%p %p %d %d %p\n", bitmap, rect, flags, format, lockeddata);
109 if(!lockeddata || !bitmap || !rect)
110 return InvalidParameter;
112 if(rect->X < 0 || rect->Y < 0 || (rect->X + rect->Width > bitmap->width) ||
113 (rect->Y + rect->Height > bitmap->height) || !flags)
114 return InvalidParameter;
116 if(flags & ImageLockModeUserInputBuf)
117 return NotImplemented;
119 if((bitmap->lockmode & ImageLockModeWrite) || (bitmap->lockmode &&
120 (flags & ImageLockModeWrite)))
123 IPicture_get_Handle(bitmap->image.picture, &hbm);
124 IPicture_get_CurDC(bitmap->image.picture, &hdc);
125 bm_is_selected = (hdc != 0);
127 bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
128 bmi.bmiHeader.biBitCount = 0;
131 hdc = CreateCompatibleDC(0);
132 old = SelectObject(hdc, (HBITMAP)hbm);
136 GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
138 abs_height = abs(bmi.bmiHeader.biHeight);
139 stride = bmi.bmiHeader.biWidth * bitspp / 8;
140 stride = (stride + 3) & ~3;
142 buff = GdipAlloc(stride * abs_height);
144 bmi.bmiHeader.biBitCount = bitspp;
147 GetDIBits(hdc, (HBITMAP)hbm, 0, abs_height, buff, &bmi, DIB_RGB_COLORS);
150 SelectObject(hdc, old);
157 lockeddata->Width = rect->Width;
158 lockeddata->Height = rect->Height;
159 lockeddata->PixelFormat = format;
160 lockeddata->Reserved = flags;
162 if(bmi.bmiHeader.biHeight > 0){
163 lockeddata->Stride = -stride;
164 lockeddata->Scan0 = buff + (bitspp / 8) * rect->X +
165 stride * (abs_height - 1 - rect->Y);
168 lockeddata->Stride = stride;
169 lockeddata->Scan0 = buff + (bitspp / 8) * rect->X + stride * rect->Y;
172 bitmap->lockmode = flags;
175 if(flags & ImageLockModeWrite)
176 bitmap->bitmapbits = buff;
181 GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
182 BitmapData* lockeddata)
190 if(!bitmap || !lockeddata)
191 return InvalidParameter;
193 if(!bitmap->lockmode)
196 if(lockeddata->Reserved & ImageLockModeUserInputBuf)
197 return NotImplemented;
199 if(lockeddata->Reserved & ImageLockModeRead){
200 if(!(--bitmap->numlocks))
201 bitmap->lockmode = 0;
203 GdipFree(lockeddata->Scan0);
207 IPicture_get_Handle(bitmap->image.picture, &hbm);
208 IPicture_get_CurDC(bitmap->image.picture, &hdc);
209 bm_is_selected = (hdc != 0);
211 bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
212 bmi.bmiHeader.biBitCount = 0;
215 hdc = CreateCompatibleDC(0);
216 old = SelectObject(hdc, (HBITMAP)hbm);
219 GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
220 bmi.bmiHeader.biBitCount = PIXELFORMATBPP(lockeddata->PixelFormat);
221 SetDIBits(hdc, (HBITMAP)hbm, 0, abs(bmi.bmiHeader.biHeight),
222 bitmap->bitmapbits, &bmi, DIB_RGB_COLORS);
225 SelectObject(hdc, old);
229 GdipFree(bitmap->bitmapbits);
234 GpStatus WINGDIPAPI GdipCreateBitmapFromFile(GDIPCONST WCHAR* filename,
240 if(!filename || !bitmap)
241 return InvalidParameter;
243 stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
248 stat = GdipCreateBitmapFromStream(stream, bitmap);
251 IStream_Release(stream);
256 GpStatus WINGDIPAPI GdipCreateHBITMAPFromBitmap(GpBitmap* bitmap,
257 HBITMAP* hbmReturn, ARGB background)
263 return NotImplemented;
266 GpStatus WINGDIPAPI GdipConvertToEmfPlus(const GpGraphics* ref,
267 GpMetafile* metafile, BOOL* succ, EmfType emfType,
268 const WCHAR* description, GpMetafile** out_metafile)
272 if(!ref || !metafile || !out_metafile)
273 return InvalidParameter;
276 *out_metafile = NULL;
279 FIXME("not implemented\n");
281 return NotImplemented;
284 /* FIXME: this should create a bitmap in the given size with the attributes
285 * (resolution etc.) of the graphics object */
286 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
287 GpGraphics* target, GpBitmap** bitmap)
292 if(!target || !bitmap)
293 return InvalidParameter;
296 FIXME("hacked stub\n");
298 ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
304 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
305 PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
307 BITMAPFILEHEADER *bmfh;
308 BITMAPINFOHEADER *bmih;
313 TRACE("%d %d %d %d %p %p\n", width, height, stride, format, scan0, bitmap);
315 if(!bitmap || width <= 0 || height <= 0 || (scan0 && (stride % 4))){
317 return InvalidParameter;
321 return InvalidParameter;
323 /* FIXME: windows allows negative stride (reads backwards from scan0) */
325 FIXME("negative stride\n");
326 return InvalidParameter;
329 *bitmap = GdipAlloc(sizeof(GpBitmap));
330 if(!*bitmap) return OutOfMemory;
333 stride = width * (PIXELFORMATBPP(format) / 8);
334 stride = (stride + 3) & ~3;
337 datalen = abs(stride * height);
338 size = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + datalen;
339 buff = GdipAlloc(size);
345 bmfh = (BITMAPFILEHEADER*) buff;
346 bmih = (BITMAPINFOHEADER*) (bmfh + 1);
348 bmfh->bfType = (((WORD)'M') << 8) + (WORD)'B';
350 bmfh->bfOffBits = size - datalen;
352 bmih->biSize = sizeof(BITMAPINFOHEADER);
353 bmih->biWidth = width;
354 bmih->biHeight = -height;
355 /* FIXME: use the rest of the data from format */
356 bmih->biBitCount = PIXELFORMATBPP(format);
357 bmih->biCompression = BI_RGB;
358 bmih->biSizeImage = datalen;
361 memcpy(bmih + 1, scan0, datalen);
363 memset(bmih + 1, 0, datalen);
365 if(CreateStreamOnHGlobal(buff, TRUE, &stream) != S_OK){
366 ERR("could not make stream\n");
372 if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
373 (LPVOID*) &((*bitmap)->image.picture)) != S_OK){
374 TRACE("Could not load picture\n");
375 IStream_Release(stream);
381 (*bitmap)->image.type = ImageTypeBitmap;
382 (*bitmap)->width = width;
383 (*bitmap)->height = height;
384 (*bitmap)->format = format;
389 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
394 stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
399 if((*bitmap)->image.type != ImageTypeBitmap){
400 IPicture_Release((*bitmap)->image.picture);
402 return GenericError; /* FIXME: what error to return? */
409 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
412 return GdipCreateBitmapFromStream(stream, bitmap);
415 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
420 return InvalidParameter;
422 IPicture_get_CurDC(image->picture, &hdc);
424 IPicture_Release(image->picture);
430 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
433 return InvalidParameter;
435 return NotImplemented;
438 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
441 if(!image || !srcRect || !srcUnit)
442 return InvalidParameter;
443 if(image->type == ImageTypeMetafile){
444 *srcRect = ((GpMetafile*)image)->bounds;
445 *srcUnit = ((GpMetafile*)image)->unit;
447 else if(image->type == ImageTypeBitmap){
448 srcRect->X = srcRect->Y = 0.0;
449 srcRect->Width = (REAL) ((GpBitmap*)image)->width;
450 srcRect->Height = (REAL) ((GpBitmap*)image)->height;
451 *srcUnit = UnitPixel;
454 srcRect->X = srcRect->Y = 0.0;
455 srcRect->Width = ipicture_pixel_width(image->picture);
456 srcRect->Height = ipicture_pixel_height(image->picture);
457 *srcUnit = UnitPixel;
460 TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
461 srcRect->Width, srcRect->Height, *srcUnit);
466 GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
469 if(!image || !height || !width)
470 return InvalidParameter;
472 if(image->type == ImageTypeMetafile){
475 *height = convert_unit(hdc, ((GpMetafile*)image)->unit) *
476 ((GpMetafile*)image)->bounds.Height;
478 *width = convert_unit(hdc, ((GpMetafile*)image)->unit) *
479 ((GpMetafile*)image)->bounds.Width;
484 else if(image->type == ImageTypeBitmap){
485 *height = ((GpBitmap*)image)->height;
486 *width = ((GpBitmap*)image)->width;
489 *height = ipicture_pixel_height(image->picture);
490 *width = ipicture_pixel_width(image->picture);
493 TRACE("returning (%f, %f)\n", *height, *width);
497 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
498 GpGraphics **graphics)
502 if(!image || !graphics)
503 return InvalidParameter;
505 if(image->type != ImageTypeBitmap){
506 FIXME("not implemented for image type %d\n", image->type);
507 return NotImplemented;
510 IPicture_get_CurDC(image->picture, &hdc);
513 hdc = CreateCompatibleDC(0);
514 IPicture_SelectPicture(image->picture, hdc, NULL, NULL);
517 return GdipCreateFromHDC(hdc, graphics);
520 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
522 if(!image || !height)
523 return InvalidParameter;
525 if(image->type == ImageTypeMetafile){
528 *height = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
529 ((GpMetafile*)image)->bounds.Height);
533 else if(image->type == ImageTypeBitmap)
534 *height = ((GpBitmap*)image)->height;
536 *height = ipicture_pixel_height(image->picture);
538 TRACE("returning %d\n", *height);
543 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
548 return InvalidParameter;
551 FIXME("not implemented\n");
553 return NotImplemented;
556 /* FIXME: test this function for non-bitmap types */
557 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
559 if(!image || !format)
560 return InvalidParameter;
562 if(image->type != ImageTypeBitmap)
563 *format = PixelFormat24bppRGB;
565 *format = ((GpBitmap*) image)->format;
570 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
574 if(!image || !format)
575 return InvalidParameter;
578 FIXME("not implemented\n");
580 return NotImplemented;
583 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
586 return InvalidParameter;
593 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
598 return InvalidParameter;
601 FIXME("not implemented\n");
603 return NotImplemented;
606 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
609 return InvalidParameter;
611 if(image->type == ImageTypeMetafile){
614 *width = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
615 ((GpMetafile*)image)->bounds.Width);
619 else if(image->type == ImageTypeBitmap)
620 *width = ((GpBitmap*)image)->width;
622 *width = ipicture_pixel_width(image->picture);
624 TRACE("returning %d\n", *width);
629 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
630 MetafileHeader * header)
634 if(!metafile || !header)
635 return InvalidParameter;
638 FIXME("not implemented\n");
643 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
648 TRACE("%p %x %p\n", image, pid, size);
651 return InvalidParameter;
654 FIXME("not implemented\n");
656 return NotImplemented;
659 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
660 GDIPCONST GUID* dimensionID, UINT* count)
664 if(!image || !dimensionID || !count)
665 return InvalidParameter;
668 FIXME("not implemented\n");
670 return NotImplemented;
673 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
674 GUID* dimensionIDs, UINT count)
678 if(!image || !dimensionIDs)
679 return InvalidParameter;
682 FIXME("not implemented\n");
687 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
688 GDIPCONST GUID* dimensionID, UINT frameidx)
692 if(!image || !dimensionID)
693 return InvalidParameter;
696 FIXME("not implemented\n");
701 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
706 if(!stream || !image)
707 return InvalidParameter;
709 if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
710 (LPVOID*) &pic) != S_OK){
711 TRACE("Could not load picture\n");
715 IStream_AddRef(stream);
717 IPicture_get_Type(pic, &type);
719 if(type == PICTYPE_BITMAP){
721 BITMAPCOREHEADER* bmch;
725 *image = GdipAlloc(sizeof(GpBitmap));
726 if(!*image) return OutOfMemory;
727 (*image)->type = ImageTypeBitmap;
729 (*((GpBitmap**) image))->width = ipicture_pixel_width(pic);
730 (*((GpBitmap**) image))->height = ipicture_pixel_height(pic);
732 /* get the pixel format */
733 IPicture_get_Handle(pic, &hbm);
734 IPicture_get_CurDC(pic, &hdc);
736 bmch = (BITMAPCOREHEADER*) (&bmi.bmiHeader);
737 bmch->bcSize = sizeof(BITMAPCOREHEADER);
741 hdc = CreateCompatibleDC(0);
742 old = SelectObject(hdc, (HBITMAP)hbm);
743 GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
744 SelectObject(hdc, old);
748 GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
750 (*((GpBitmap**) image))->format = (bmch->bcBitCount << 8) | PixelFormatGDI;
752 else if(type == PICTYPE_METAFILE || type == PICTYPE_ENHMETAFILE){
753 /* FIXME: missing initialization code */
754 *image = GdipAlloc(sizeof(GpMetafile));
755 if(!*image) return OutOfMemory;
756 (*image)->type = ImageTypeMetafile;
759 *image = GdipAlloc(sizeof(GpImage));
760 if(!*image) return OutOfMemory;
761 (*image)->type = ImageTypeUnknown;
764 (*image)->picture = pic;
770 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
772 return GdipLoadImageFromStream(stream, image);
775 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
780 return InvalidParameter;
783 FIXME("not implemented\n");
785 return NotImplemented;
788 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
789 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
791 if(!image || !stream)
792 return InvalidParameter;
794 /* FIXME: CLSID, EncoderParameters not used */
796 IPicture_SaveAsFile(image->picture, stream, FALSE, NULL);
801 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
802 GDIPCONST ColorPalette *palette)
806 if(!image || !palette)
807 return InvalidParameter;
810 FIXME("not implemented\n");
812 return NotImplemented;