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 GdipConvertToEmfPlus(const GpGraphics* ref,
257 GpMetafile* metafile, BOOL* succ, EmfType emfType,
258 const WCHAR* description, GpMetafile** out_metafile)
262 if(!ref || !metafile || !out_metafile)
263 return InvalidParameter;
266 *out_metafile = NULL;
269 FIXME("not implemented\n");
271 return NotImplemented;
274 /* FIXME: this should create a bitmap in the given size with the attributes
275 * (resolution etc.) of the graphics object */
276 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
277 GpGraphics* target, GpBitmap** bitmap)
282 if(!target || !bitmap)
283 return InvalidParameter;
286 FIXME("hacked stub\n");
288 ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
294 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
295 PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
297 BITMAPFILEHEADER *bmfh;
298 BITMAPINFOHEADER *bmih;
303 TRACE("%d %d %d %d %p %p\n", width, height, stride, format, scan0, bitmap);
305 if(!bitmap || width <= 0 || height <= 0 || (scan0 && (stride % 4))){
307 return InvalidParameter;
311 return InvalidParameter;
313 /* FIXME: windows allows negative stride (reads backwards from scan0) */
315 FIXME("negative stride\n");
316 return InvalidParameter;
319 *bitmap = GdipAlloc(sizeof(GpBitmap));
320 if(!*bitmap) return OutOfMemory;
323 stride = width * (PIXELFORMATBPP(format) / 8);
324 stride = (stride + 3) & ~3;
327 datalen = abs(stride * height);
328 size = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) + datalen;
329 buff = GdipAlloc(size);
335 bmfh = (BITMAPFILEHEADER*) buff;
336 bmih = (BITMAPINFOHEADER*) (bmfh + 1);
338 bmfh->bfType = (((WORD)'M') << 8) + (WORD)'B';
340 bmfh->bfOffBits = size - datalen;
342 bmih->biSize = sizeof(BITMAPINFOHEADER);
343 bmih->biWidth = width;
344 bmih->biHeight = -height;
345 /* FIXME: use the rest of the data from format */
346 bmih->biBitCount = PIXELFORMATBPP(format);
347 bmih->biCompression = BI_RGB;
348 bmih->biSizeImage = datalen;
351 memcpy(bmih + 1, scan0, datalen);
353 memset(bmih + 1, 0, datalen);
355 if(CreateStreamOnHGlobal(buff, TRUE, &stream) != S_OK){
356 ERR("could not make stream\n");
362 if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
363 (LPVOID*) &((*bitmap)->image.picture)) != S_OK){
364 TRACE("Could not load picture\n");
365 IStream_Release(stream);
371 (*bitmap)->image.type = ImageTypeBitmap;
372 (*bitmap)->width = width;
373 (*bitmap)->height = height;
374 (*bitmap)->format = format;
379 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
384 stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
389 if((*bitmap)->image.type != ImageTypeBitmap){
390 IPicture_Release((*bitmap)->image.picture);
392 return GenericError; /* FIXME: what error to return? */
399 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
402 return GdipCreateBitmapFromStream(stream, bitmap);
405 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
410 return InvalidParameter;
412 IPicture_get_CurDC(image->picture, &hdc);
414 IPicture_Release(image->picture);
420 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
423 return InvalidParameter;
425 return NotImplemented;
428 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
431 if(!image || !srcRect || !srcUnit)
432 return InvalidParameter;
433 if(image->type == ImageTypeMetafile){
434 memcpy(srcRect, &((GpMetafile*)image)->bounds, sizeof(GpRectF));
435 *srcUnit = ((GpMetafile*)image)->unit;
437 else if(image->type == ImageTypeBitmap){
438 srcRect->X = srcRect->Y = 0.0;
439 srcRect->Width = (REAL) ((GpBitmap*)image)->width;
440 srcRect->Height = (REAL) ((GpBitmap*)image)->height;
441 *srcUnit = UnitPixel;
444 srcRect->X = srcRect->Y = 0.0;
445 srcRect->Width = ipicture_pixel_width(image->picture);
446 srcRect->Height = ipicture_pixel_height(image->picture);
447 *srcUnit = UnitPixel;
450 TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
451 srcRect->Width, srcRect->Height, *srcUnit);
456 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
457 GpGraphics **graphics)
461 if(!image || !graphics)
462 return InvalidParameter;
464 if(image->type != ImageTypeBitmap){
465 FIXME("not implemented for image type %d\n", image->type);
466 return NotImplemented;
469 IPicture_get_CurDC(image->picture, &hdc);
472 hdc = CreateCompatibleDC(0);
473 IPicture_SelectPicture(image->picture, hdc, NULL, NULL);
476 return GdipCreateFromHDC(hdc, graphics);
479 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
481 if(!image || !height)
482 return InvalidParameter;
484 if(image->type == ImageTypeMetafile){
487 *height = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
488 ((GpMetafile*)image)->bounds.Height);
492 else if(image->type == ImageTypeBitmap)
493 *height = ((GpBitmap*)image)->height;
495 *height = ipicture_pixel_height(image->picture);
497 TRACE("returning %d\n", *height);
502 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
507 return InvalidParameter;
510 FIXME("not implemented\n");
512 return NotImplemented;
515 /* FIXME: test this function for non-bitmap types */
516 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
518 if(!image || !format)
519 return InvalidParameter;
521 if(image->type != ImageTypeBitmap)
522 *format = PixelFormat24bppRGB;
524 *format = ((GpBitmap*) image)->format;
529 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
533 if(!image || !format)
534 return InvalidParameter;
537 FIXME("not implemented\n");
539 return NotImplemented;
542 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
545 return InvalidParameter;
552 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
557 return InvalidParameter;
560 FIXME("not implemented\n");
562 return NotImplemented;
565 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
568 return InvalidParameter;
570 if(image->type == ImageTypeMetafile){
573 *width = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
574 ((GpMetafile*)image)->bounds.Width);
578 else if(image->type == ImageTypeBitmap)
579 *width = ((GpBitmap*)image)->width;
581 *width = ipicture_pixel_width(image->picture);
583 TRACE("returning %d\n", *width);
588 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
589 MetafileHeader * header)
593 if(!metafile || !header)
594 return InvalidParameter;
597 FIXME("not implemented\n");
602 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
607 TRACE("%p %x %p\n", image, pid, size);
610 return InvalidParameter;
613 FIXME("not implemented\n");
615 return NotImplemented;
618 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
619 GDIPCONST GUID* dimensionID, UINT* count)
623 if(!image || !dimensionID || !count)
624 return InvalidParameter;
627 FIXME("not implemented\n");
629 return NotImplemented;
632 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
633 GUID* dimensionIDs, UINT count)
637 if(!image || !dimensionIDs)
638 return InvalidParameter;
641 FIXME("not implemented\n");
646 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
647 GDIPCONST GUID* dimensionID, UINT frameidx)
651 if(!image || !dimensionID)
652 return InvalidParameter;
655 FIXME("not implemented\n");
660 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
665 if(!stream || !image)
666 return InvalidParameter;
668 if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
669 (LPVOID*) &pic) != S_OK){
670 TRACE("Could not load picture\n");
674 IStream_AddRef(stream);
676 IPicture_get_Type(pic, &type);
678 if(type == PICTYPE_BITMAP){
680 BITMAPCOREHEADER* bmch;
684 *image = GdipAlloc(sizeof(GpBitmap));
685 if(!*image) return OutOfMemory;
686 (*image)->type = ImageTypeBitmap;
688 (*((GpBitmap**) image))->width = ipicture_pixel_width(pic);
689 (*((GpBitmap**) image))->height = ipicture_pixel_height(pic);
691 /* get the pixel format */
692 IPicture_get_Handle(pic, &hbm);
693 IPicture_get_CurDC(pic, &hdc);
695 bmch = (BITMAPCOREHEADER*) (&bmi.bmiHeader);
696 bmch->bcSize = sizeof(BITMAPCOREHEADER);
700 hdc = CreateCompatibleDC(0);
701 old = SelectObject(hdc, (HBITMAP)hbm);
702 GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
703 SelectObject(hdc, old);
707 GetDIBits(hdc, (HBITMAP)hbm, 0, 0, NULL, &bmi, DIB_RGB_COLORS);
709 (*((GpBitmap**) image))->format = (bmch->bcBitCount << 8) | PixelFormatGDI;
711 else if(type == PICTYPE_METAFILE || type == PICTYPE_ENHMETAFILE){
712 /* FIXME: missing initialization code */
713 *image = GdipAlloc(sizeof(GpMetafile));
714 if(!*image) return OutOfMemory;
715 (*image)->type = ImageTypeMetafile;
718 *image = GdipAlloc(sizeof(GpImage));
719 if(!*image) return OutOfMemory;
720 (*image)->type = ImageTypeUnknown;
723 (*image)->picture = pic;
729 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
731 return GdipLoadImageFromStream(stream, image);
734 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
739 return InvalidParameter;
742 FIXME("not implemented\n");
744 return NotImplemented;
747 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
748 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
750 if(!image || !stream)
751 return InvalidParameter;
753 /* FIXME: CLSID, EncoderParameters not used */
755 IPicture_SaveAsFile(image->picture, stream, FALSE, NULL);
760 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
761 GDIPCONST ColorPalette *palette)
765 if(!image || !palette)
766 return InvalidParameter;
769 FIXME("not implemented\n");
771 return NotImplemented;