2 * DIB driver initialization and DC functions.
4 * Copyright 2011 Huw Davies
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
23 #include "gdi_private.h"
26 #include "wine/exception.h"
27 #include "wine/debug.h"
29 WINE_DEFAULT_DEBUG_CHANNEL(dib);
31 static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
32 static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
34 static void calc_shift_and_len(DWORD mask, int *shift, int *len)
45 while ((mask & 1) == 0)
51 while ((mask & 1) == 1)
60 static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
62 dib->red_mask = bit_fields[0];
63 dib->green_mask = bit_fields[1];
64 dib->blue_mask = bit_fields[2];
65 calc_shift_and_len(dib->red_mask, &dib->red_shift, &dib->red_len);
66 calc_shift_and_len(dib->green_mask, &dib->green_shift, &dib->green_len);
67 calc_shift_and_len(dib->blue_mask, &dib->blue_shift, &dib->blue_len);
70 static void init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields,
71 const RGBQUAD *color_table, void *bits, enum dib_info_flags flags)
73 dib->bit_count = bi->biBitCount;
74 dib->width = bi->biWidth;
75 dib->height = bi->biHeight;
76 dib->compression = bi->biCompression;
77 dib->stride = get_dib_stride( dib->width, dib->bit_count );
79 dib->bits.is_copy = FALSE;
80 dib->bits.free = NULL;
81 dib->bits.param = NULL;
83 if(dib->height < 0) /* top-down */
85 dib->height = -dib->height;
89 /* bits always points to the top-left corner and the stride is -ve */
90 dib->bits.ptr = (BYTE*)dib->bits.ptr + (dib->height - 1) * dib->stride;
91 dib->stride = -dib->stride;
94 dib->funcs = &funcs_null;
96 switch(dib->bit_count)
99 if(bi->biCompression == BI_RGB)
100 bit_fields = bit_fields_888;
102 init_bit_fields(dib, bit_fields);
104 if(dib->red_mask == 0xff0000 && dib->green_mask == 0x00ff00 && dib->blue_mask == 0x0000ff)
105 dib->funcs = &funcs_8888;
107 dib->funcs = &funcs_32;
111 dib->funcs = &funcs_24;
115 if(bi->biCompression == BI_RGB)
116 bit_fields = bit_fields_555;
118 init_bit_fields(dib, bit_fields);
120 if(dib->red_mask == 0x7c00 && dib->green_mask == 0x03e0 && dib->blue_mask == 0x001f)
121 dib->funcs = &funcs_555;
123 dib->funcs = &funcs_16;
127 dib->funcs = &funcs_8;
131 dib->funcs = &funcs_4;
135 dib->funcs = &funcs_1;
139 if (color_table && bi->biClrUsed)
141 dib->color_table = color_table;
142 dib->color_table_size = bi->biClrUsed;
144 else if (flags & default_color_table)
146 dib->color_table = get_default_color_table( dib->bit_count );
147 dib->color_table_size = dib->color_table ? (1 << dib->bit_count) : 0;
151 dib->color_table = NULL;
152 dib->color_table_size = 0;
156 void init_dib_info_from_bitmapinfo(dib_info *dib, const BITMAPINFO *info, void *bits, enum dib_info_flags flags)
158 init_dib_info( dib, &info->bmiHeader, (const DWORD *)info->bmiColors, info->bmiColors, bits, flags );
161 BOOL init_dib_info_from_bitmapobj(dib_info *dib, BITMAPOBJ *bmp, enum dib_info_flags flags)
163 if (!is_bitmapobj_dib( bmp ))
167 get_ddb_bitmapinfo( bmp, &info );
168 if (!bmp->dib.dsBm.bmBits)
170 int width_bytes = get_dib_stride( bmp->dib.dsBm.bmWidth, bmp->dib.dsBm.bmBitsPixel );
171 bmp->dib.dsBm.bmBits = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
172 bmp->dib.dsBm.bmHeight * width_bytes );
173 if (!bmp->dib.dsBm.bmBits) return FALSE;
175 init_dib_info_from_bitmapinfo( dib, &info, bmp->dib.dsBm.bmBits, flags );
177 else init_dib_info( dib, &bmp->dib.dsBmih, bmp->dib.dsBitfields,
178 bmp->color_table, bmp->dib.dsBm.bmBits, flags );
182 static void clear_dib_info(dib_info *dib)
184 dib->color_table = NULL;
185 dib->bits.ptr = NULL;
186 dib->bits.free = NULL;
187 dib->bits.param = NULL;
190 /**********************************************************************
193 * Free the resources associated with a dib and optionally the bits
195 void free_dib_info(dib_info *dib)
197 if (dib->bits.free) dib->bits.free( &dib->bits );
198 clear_dib_info( dib );
201 void copy_dib_color_info(dib_info *dst, const dib_info *src)
203 dst->bit_count = src->bit_count;
204 dst->red_mask = src->red_mask;
205 dst->green_mask = src->green_mask;
206 dst->blue_mask = src->blue_mask;
207 dst->red_len = src->red_len;
208 dst->green_len = src->green_len;
209 dst->blue_len = src->blue_len;
210 dst->red_shift = src->red_shift;
211 dst->green_shift = src->green_shift;
212 dst->blue_shift = src->blue_shift;
213 dst->funcs = src->funcs;
214 dst->color_table_size = src->color_table_size;
215 dst->color_table = src->color_table;
218 DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, struct bitblt_coords *src,
219 const BITMAPINFO *dst_info, void *dst_bits, BOOL add_alpha )
221 dib_info src_dib, dst_dib;
224 init_dib_info_from_bitmapinfo( &src_dib, src_info, src_bits, default_color_table );
225 init_dib_info_from_bitmapinfo( &dst_dib, dst_info, dst_bits, default_color_table );
229 dst_dib.funcs->convert_to( &dst_dib, &src_dib, &src->visrect );
234 WARN( "invalid bits pointer %p\n", src_bits );
239 /* We shared the color tables, so there's no need to free the dib_infos here */
240 if(!ret) return ERROR_BAD_FORMAT;
242 /* update coordinates, the destination rectangle is always stored at 0,0 */
243 src->x -= src->visrect.left;
244 src->y -= src->visrect.top;
245 offset_rect( &src->visrect, -src->visrect.left, -src->visrect.top );
247 if (add_alpha && dst_dib.funcs == &funcs_8888 && src_dib.funcs != &funcs_8888)
249 DWORD *pixel = dst_dib.bits.ptr;
252 for (y = src->visrect.top; y < src->visrect.bottom; y++, pixel += dst_dib.stride / 4)
253 for (x = src->visrect.left; x < src->visrect.right; x++)
254 pixel[x] |= 0xff000000;
257 return ERROR_SUCCESS;
260 int get_clipped_rects( const dib_info *dib, const RECT *rc, HRGN clip, struct clipped_rects *clip_rects )
262 const WINEREGION *region;
263 RECT rect, *out = clip_rects->buffer;
266 init_clipped_rects( clip_rects );
270 rect.right = dib->width;
271 rect.bottom = dib->height;
272 if (rc && !intersect_rect( &rect, &rect, rc )) return 0;
277 clip_rects->count = 1;
281 if (!(region = get_wine_region( clip ))) return 0;
283 for (i = 0; i < region->numRects; i++)
285 if (region->rects[i].top >= rect.bottom) break;
286 if (!intersect_rect( out, &rect, ®ion->rects[i] )) continue;
288 if (out == &clip_rects->buffer[sizeof(clip_rects->buffer) / sizeof(RECT)])
290 clip_rects->rects = HeapAlloc( GetProcessHeap(), 0, region->numRects * sizeof(RECT) );
291 if (!clip_rects->rects) return 0;
292 memcpy( clip_rects->rects, clip_rects->buffer, (out - clip_rects->buffer) * sizeof(RECT) );
293 out = clip_rects->rects + (out - clip_rects->buffer);
296 release_wine_region( clip );
297 clip_rects->count = out - clip_rects->rects;
298 return clip_rects->count;
301 /**********************************************************************
304 static BOOL dibdrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
305 LPCWSTR output, const DEVMODEW *data )
307 dibdrv_physdev *pdev = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*pdev) );
309 if (!pdev) return FALSE;
310 clear_dib_info(&pdev->dib);
311 clear_dib_info(&pdev->brush.dib);
312 clear_dib_info(&pdev->pen_brush.dib);
313 push_dc_driver( dev, &pdev->dev, &dib_driver );
317 /***********************************************************************
320 static BOOL dibdrv_DeleteDC( PHYSDEV dev )
322 dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
323 TRACE("(%p)\n", dev);
324 free_pattern_brush( &pdev->brush );
325 free_pattern_brush( &pdev->pen_brush );
326 HeapFree( GetProcessHeap(), 0, pdev );
330 /***********************************************************************
333 static BOOL dibdrv_CopyBitmap( HBITMAP src, HBITMAP dst )
335 return nulldrv_CopyBitmap( src, dst );
338 /***********************************************************************
339 * dibdrv_DeleteBitmap
341 static BOOL dibdrv_DeleteBitmap( HBITMAP bitmap )
346 /***********************************************************************
347 * dibdrv_SelectBitmap
349 static HBITMAP dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
351 dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
352 BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
355 TRACE("(%p, %p)\n", dev, bitmap);
359 if(!init_dib_info_from_bitmapobj(&dib, bmp, default_color_table))
361 GDI_ReleaseObj( bitmap );
365 GDI_ReleaseObj( bitmap );
370 /***********************************************************************
371 * dibdrv_SetDeviceClipping
373 static void dibdrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
375 dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
376 TRACE("(%p, %p)\n", dev, rgn);
381 /***********************************************************************
382 * dibdrv_ChoosePixelFormat
384 static INT dibdrv_ChoosePixelFormat( PHYSDEV dev, const PIXELFORMATDESCRIPTOR *pfd )
386 FIXME( "Not supported on DIB section\n" );
390 /***********************************************************************
391 * dibdrv_DescribePixelFormat
393 static INT dibdrv_DescribePixelFormat( PHYSDEV dev, INT fmt, UINT size, PIXELFORMATDESCRIPTOR *pfd )
395 FIXME( "Not supported on DIB section\n" );
399 /***********************************************************************
402 static INT dibdrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
403 INT out_size, void *out_data )
408 /***********************************************************************
409 * dibdrv_GetDeviceGammaRamp
411 static BOOL dibdrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
413 SetLastError( ERROR_INVALID_PARAMETER );
417 /***********************************************************************
418 * dibdrv_GetPixelFormat
420 static INT dibdrv_GetPixelFormat( PHYSDEV dev )
422 FIXME( "Not supported on DIB section\n" );
426 /***********************************************************************
427 * dibdrv_SetDeviceGammaRamp
429 static BOOL dibdrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
431 SetLastError( ERROR_INVALID_PARAMETER );
435 /***********************************************************************
436 * dibdrv_SetPixelFormat
438 static BOOL dibdrv_SetPixelFormat( PHYSDEV dev, INT fmt, const PIXELFORMATDESCRIPTOR *pfd )
440 FIXME( "Not supported on DIB section\n" );
444 /***********************************************************************
447 static BOOL dibdrv_SwapBuffers( PHYSDEV dev )
449 FIXME( "Not supported on DIB section\n" );
453 /***********************************************************************
454 * dibdrv_wglCopyContext
456 static BOOL dibdrv_wglCopyContext( HGLRC src, HGLRC dst, UINT mask )
458 FIXME( "Not supported on DIB section\n" );
462 /***********************************************************************
463 * dibdrv_wglCreateContext
465 static HGLRC dibdrv_wglCreateContext( PHYSDEV dev )
467 FIXME( "Not supported on DIB section\n" );
471 /***********************************************************************
472 * dibdrv_wglCreateContextAttribsARB
474 static HGLRC dibdrv_wglCreateContextAttribsARB( PHYSDEV dev, HGLRC ctx, const int *attribs )
476 FIXME( "Not supported on DIB section\n" );
480 /***********************************************************************
481 * dibdrv_wglDeleteContext
483 static BOOL dibdrv_wglDeleteContext( HGLRC ctx )
485 FIXME( "Not supported on DIB section\n" );
489 /***********************************************************************
490 * dibdrv_wglGetPbufferDCARB
492 static HDC dibdrv_wglGetPbufferDCARB( PHYSDEV dev, void *buffer )
494 FIXME( "Not supported on DIB section\n" );
498 /***********************************************************************
499 * dibdrv_wglGetProcAddress
501 static PROC dibdrv_wglGetProcAddress( LPCSTR name )
503 FIXME( "Not supported on DIB section\n" );
507 /***********************************************************************
508 * dibdrv_wglMakeContextCurrentARB
510 static BOOL dibdrv_wglMakeContextCurrentARB( PHYSDEV draw_dev, PHYSDEV read_dev, HGLRC ctx )
512 FIXME( "Not supported on DIB section\n" );
516 /***********************************************************************
517 * dibdrv_wglMakeCurrent
519 static BOOL dibdrv_wglMakeCurrent( PHYSDEV dev, HGLRC ctx )
521 FIXME( "Not supported on DIB section\n" );
525 /***********************************************************************
526 * dibdrv_wglSetPixelFormatWINE
528 static BOOL dibdrv_wglSetPixelFormatWINE( PHYSDEV dev, INT fmt, const PIXELFORMATDESCRIPTOR *pfd )
530 FIXME( "Not supported on DIB section\n" );
534 /***********************************************************************
535 * dibdrv_wglShareLists
537 static BOOL dibdrv_wglShareLists( HGLRC ctx1, HGLRC ctx2 )
539 FIXME( "Not supported on DIB section\n" );
543 /***********************************************************************
544 * dibdrv_wglUseFontBitmapsA
546 static BOOL dibdrv_wglUseFontBitmapsA( PHYSDEV dev, DWORD first, DWORD count, DWORD base )
548 FIXME( "Not supported on DIB section\n" );
552 /***********************************************************************
553 * dibdrv_wglUseFontBitmapsW
555 static BOOL dibdrv_wglUseFontBitmapsW( PHYSDEV dev, DWORD first, DWORD count, DWORD base )
557 FIXME( "Not supported on DIB section\n" );
561 const struct gdi_dc_funcs dib_driver =
563 NULL, /* pAbortDoc */
564 NULL, /* pAbortPath */
565 dibdrv_AlphaBlend, /* pAlphaBlend */
566 NULL, /* pAngleArc */
567 dibdrv_Arc, /* pArc */
568 dibdrv_ArcTo, /* pArcTo */
569 NULL, /* pBeginPath */
570 dibdrv_BlendImage, /* pBlendImage */
571 dibdrv_ChoosePixelFormat, /* pChoosePixelFormat */
572 dibdrv_Chord, /* pChord */
573 NULL, /* pCloseFigure */
574 dibdrv_CopyBitmap, /* pCopyBitmap */
575 NULL, /* pCreateBitmap */
576 NULL, /* pCreateCompatibleDC */
577 dibdrv_CreateDC, /* pCreateDC */
578 dibdrv_DeleteBitmap, /* pDeleteBitmap */
579 dibdrv_DeleteDC, /* pDeleteDC */
580 NULL, /* pDeleteObject */
581 dibdrv_DescribePixelFormat, /* pDescribePixelFormat */
582 NULL, /* pDeviceCapabilities */
583 dibdrv_Ellipse, /* pEllipse */
587 NULL, /* pEnumFonts */
588 NULL, /* pEnumICMProfiles */
589 NULL, /* pExcludeClipRect */
590 NULL, /* pExtDeviceMode */
591 dibdrv_ExtEscape, /* pExtEscape */
592 dibdrv_ExtFloodFill, /* pExtFloodFill */
593 NULL, /* pExtSelectClipRgn */
594 dibdrv_ExtTextOut, /* pExtTextOut */
595 NULL, /* pFillPath */
597 NULL, /* pFlattenPath */
598 NULL, /* pFontIsLinked */
599 NULL, /* pFrameRgn */
600 NULL, /* pGdiComment */
601 NULL, /* pGdiRealizationInfo */
602 NULL, /* pGetCharABCWidths */
603 NULL, /* pGetCharABCWidthsI */
604 NULL, /* pGetCharWidth */
605 NULL, /* pGetDeviceCaps */
606 dibdrv_GetDeviceGammaRamp, /* pGetDeviceGammaRamp */
607 NULL, /* pGetFontData */
608 NULL, /* pGetFontUnicodeRanges */
609 NULL, /* pGetGlyphIndices */
610 NULL, /* pGetGlyphOutline */
611 NULL, /* pGetICMProfile */
612 dibdrv_GetImage, /* pGetImage */
613 NULL, /* pGetKerningPairs */
614 dibdrv_GetNearestColor, /* pGetNearestColor */
615 NULL, /* pGetOutlineTextMetrics */
616 dibdrv_GetPixel, /* pGetPixel */
617 dibdrv_GetPixelFormat, /* pGetPixelFormat */
618 NULL, /* pGetSystemPaletteEntries */
619 NULL, /* pGetTextCharsetInfo */
620 NULL, /* pGetTextExtentExPoint */
621 NULL, /* pGetTextExtentExPointI */
622 NULL, /* pGetTextFace */
623 NULL, /* pGetTextMetrics */
624 dibdrv_GradientFill, /* pGradientFill */
625 NULL, /* pIntersectClipRect */
626 NULL, /* pInvertRgn */
627 dibdrv_LineTo, /* pLineTo */
628 NULL, /* pModifyWorldTransform */
630 NULL, /* pOffsetClipRgn */
631 NULL, /* pOffsetViewportOrg */
632 NULL, /* pOffsetWindowOrg */
633 dibdrv_PaintRgn, /* pPaintRgn */
634 dibdrv_PatBlt, /* pPatBlt */
635 dibdrv_Pie, /* pPie */
636 NULL, /* pPolyBezier */
637 NULL, /* pPolyBezierTo */
638 NULL, /* pPolyDraw */
639 dibdrv_PolyPolygon, /* pPolyPolygon */
640 dibdrv_PolyPolyline, /* pPolyPolyline */
641 dibdrv_Polygon, /* pPolygon */
642 dibdrv_Polyline, /* pPolyline */
643 NULL, /* pPolylineTo */
644 dibdrv_PutImage, /* pPutImage */
645 NULL, /* pRealizeDefaultPalette */
646 NULL, /* pRealizePalette */
647 dibdrv_Rectangle, /* pRectangle */
649 NULL, /* pRestoreDC */
650 dibdrv_RoundRect, /* pRoundRect */
652 NULL, /* pScaleViewportExt */
653 NULL, /* pScaleWindowExt */
654 dibdrv_SelectBitmap, /* pSelectBitmap */
655 dibdrv_SelectBrush, /* pSelectBrush */
656 NULL, /* pSelectClipPath */
657 NULL, /* pSelectFont */
658 NULL, /* pSelectPalette */
659 dibdrv_SelectPen, /* pSelectPen */
660 NULL, /* pSetArcDirection */
661 NULL, /* pSetBkColor */
662 NULL, /* pSetBkMode */
663 dibdrv_SetDCBrushColor, /* pSetDCBrushColor */
664 dibdrv_SetDCPenColor, /* pSetDCPenColor */
665 NULL, /* pSetDIBitsToDevice */
666 dibdrv_SetDeviceClipping, /* pSetDeviceClipping */
667 dibdrv_SetDeviceGammaRamp, /* pSetDeviceGammaRamp */
668 NULL, /* pSetLayout */
669 NULL, /* pSetMapMode */
670 NULL, /* pSetMapperFlags */
671 dibdrv_SetPixel, /* pSetPixel */
672 dibdrv_SetPixelFormat, /* pSetPixelFormat */
673 NULL, /* pSetPolyFillMode */
675 NULL, /* pSetRelAbs */
676 NULL, /* pSetStretchBltMode */
677 NULL, /* pSetTextAlign */
678 NULL, /* pSetTextCharacterExtra */
679 NULL, /* pSetTextColor */
680 NULL, /* pSetTextJustification */
681 NULL, /* pSetViewportExt */
682 NULL, /* pSetViewportOrg */
683 NULL, /* pSetWindowExt */
684 NULL, /* pSetWindowOrg */
685 NULL, /* pSetWorldTransform */
686 NULL, /* pStartDoc */
687 NULL, /* pStartPage */
688 dibdrv_StretchBlt, /* pStretchBlt */
689 NULL, /* pStretchDIBits */
690 NULL, /* pStrokeAndFillPath */
691 NULL, /* pStrokePath */
692 dibdrv_SwapBuffers, /* pSwapBuffers */
693 NULL, /* pUnrealizePalette */
694 NULL, /* pWidenPath */
695 dibdrv_wglCopyContext, /* pwglCopyContext */
696 dibdrv_wglCreateContext, /* pwglCreateContext */
697 dibdrv_wglCreateContextAttribsARB, /* pwglCreateContextAttribsARB */
698 dibdrv_wglDeleteContext, /* pwglDeleteContext */
699 dibdrv_wglGetPbufferDCARB, /* pwglGetPbufferDCARB */
700 dibdrv_wglGetProcAddress, /* pwglGetProcAddress */
701 dibdrv_wglMakeContextCurrentARB, /* pwglMakeContextCurrentARB */
702 dibdrv_wglMakeCurrent, /* pwglMakeCurrent */
703 dibdrv_wglSetPixelFormatWINE, /* pwglSetPixelFormatWINE */
704 dibdrv_wglShareLists, /* pwglShareLists */
705 dibdrv_wglUseFontBitmapsA, /* pwglUseFontBitmapsA */
706 dibdrv_wglUseFontBitmapsW, /* pwglUseFontBitmapsW */