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
)
167 get_ddb_bitmapinfo( bmp
, &info
);
168 if (!bmp
->bitmap
.bmBits
)
170 int width_bytes
= get_dib_stride( bmp
->bitmap
.bmWidth
, bmp
->bitmap
.bmBitsPixel
);
171 bmp
->bitmap
.bmBits
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
,
172 bmp
->bitmap
.bmHeight
* width_bytes
);
173 if (!bmp
->bitmap
.bmBits
) return FALSE
;
175 init_dib_info_from_bitmapinfo( dib
, &info
, bmp
->bitmap
.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 static void update_fg_colors( dibdrv_physdev
*pdev
)
262 pdev
->text_color
= get_pixel_color( pdev
, GetTextColor( pdev
->dev
.hdc
), TRUE
);
265 static void update_masks( dibdrv_physdev
*pdev
, INT rop
)
267 update_brush_rop( pdev
, rop
);
268 if( GetBkMode( pdev
->dev
.hdc
) == OPAQUE
)
269 calc_and_xor_masks( rop
, pdev
->bkgnd_color
, &pdev
->bkgnd_and
, &pdev
->bkgnd_xor
);
272 /***********************************************************************
273 * add_extra_clipping_region
275 * Temporarily add a region to the current clipping region.
276 * The returned region must be restored with restore_clipping_region.
278 HRGN
add_extra_clipping_region( dibdrv_physdev
*pdev
, HRGN rgn
)
282 if (!(clip
= CreateRectRgn( 0, 0, 0, 0 ))) return 0;
283 CombineRgn( clip
, pdev
->clip
, rgn
, RGN_AND
);
289 /***********************************************************************
290 * restore_clipping_region
292 void restore_clipping_region( dibdrv_physdev
*pdev
, HRGN rgn
)
295 DeleteObject( pdev
->clip
);
299 /**********************************************************************
302 static BOOL
dibdrv_CreateDC( PHYSDEV
*dev
, LPCWSTR driver
, LPCWSTR device
,
303 LPCWSTR output
, const DEVMODEW
*data
)
305 dibdrv_physdev
*pdev
= HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY
, sizeof(*pdev
) );
307 if (!pdev
) return FALSE
;
308 if (!(pdev
->clip
= CreateRectRgn(0, 0, 0, 0)))
310 HeapFree( GetProcessHeap(), 0, pdev
);
313 clear_dib_info(&pdev
->dib
);
314 clear_dib_info(&pdev
->brush_dib
);
315 push_dc_driver( dev
, &pdev
->dev
, &dib_driver
);
319 /***********************************************************************
322 static BOOL
dibdrv_DeleteDC( PHYSDEV dev
)
324 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
325 TRACE("(%p)\n", dev
);
326 DeleteObject(pdev
->clip
);
327 free_pattern_brush(pdev
);
328 HeapFree( GetProcessHeap(), 0, pdev
);
332 /***********************************************************************
335 static BOOL
dibdrv_CopyBitmap( HBITMAP src
, HBITMAP dst
)
337 return nulldrv_CopyBitmap( src
, dst
);
340 /***********************************************************************
341 * dibdrv_DeleteBitmap
343 static BOOL
dibdrv_DeleteBitmap( HBITMAP bitmap
)
348 /***********************************************************************
349 * dibdrv_SelectBitmap
351 static HBITMAP
dibdrv_SelectBitmap( PHYSDEV dev
, HBITMAP bitmap
)
353 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSelectBitmap
);
354 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
355 BITMAPOBJ
*bmp
= GDI_GetObjPtr( bitmap
, OBJ_BITMAP
);
358 TRACE("(%p, %p)\n", dev
, bitmap
);
362 if(!init_dib_info_from_bitmapobj(&dib
, bmp
, default_color_table
))
364 GDI_ReleaseObj( bitmap
);
369 GDI_ReleaseObj( bitmap
);
371 return next
->funcs
->pSelectBitmap( next
, bitmap
);
374 /***********************************************************************
377 static COLORREF
dibdrv_SetBkColor( PHYSDEV dev
, COLORREF color
)
379 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSetBkColor
);
380 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
382 pdev
->bkgnd_color
= get_pixel_color( pdev
, color
, FALSE
);
384 if( GetBkMode(dev
->hdc
) == OPAQUE
)
385 calc_and_xor_masks( GetROP2(dev
->hdc
), pdev
->bkgnd_color
, &pdev
->bkgnd_and
, &pdev
->bkgnd_xor
);
388 pdev
->bkgnd_and
= ~0u;
392 update_fg_colors( pdev
); /* Only needed in the 1 bpp case */
394 return next
->funcs
->pSetBkColor( next
, color
);
397 /***********************************************************************
400 static INT
dibdrv_SetBkMode( PHYSDEV dev
, INT mode
)
402 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSetBkMode
);
403 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
406 calc_and_xor_masks( GetROP2(dev
->hdc
), pdev
->bkgnd_color
, &pdev
->bkgnd_and
, &pdev
->bkgnd_xor
);
409 pdev
->bkgnd_and
= ~0u;
413 return next
->funcs
->pSetBkMode( next
, mode
);
416 /***********************************************************************
417 * dibdrv_SetDeviceClipping
419 static void dibdrv_SetDeviceClipping( PHYSDEV dev
, HRGN rgn
)
421 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSetDeviceClipping
);
422 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
423 TRACE("(%p, %p)\n", dev
, rgn
);
425 SetRectRgn( pdev
->clip
, 0, 0, pdev
->dib
.width
, pdev
->dib
.height
);
426 if (rgn
) CombineRgn( pdev
->clip
, pdev
->clip
, rgn
, RGN_AND
);
427 return next
->funcs
->pSetDeviceClipping( next
, rgn
);
430 /***********************************************************************
431 * dibdrv_SetDIBColorTable
433 static UINT
dibdrv_SetDIBColorTable( PHYSDEV dev
, UINT pos
, UINT count
, const RGBQUAD
*colors
)
435 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSetDIBColorTable
);
436 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
437 TRACE("(%p, %d, %d, %p)\n", dev
, pos
, count
, colors
);
439 if (pdev
->dib
.color_table
)
441 pdev
->bkgnd_color
= get_pixel_color( pdev
, GetBkColor( dev
->hdc
), FALSE
);
442 update_fg_colors( pdev
);
444 update_masks( pdev
, GetROP2( dev
->hdc
) );
446 return next
->funcs
->pSetDIBColorTable( next
, pos
, count
, colors
);
449 /***********************************************************************
452 static INT
dibdrv_SetROP2( PHYSDEV dev
, INT rop
)
454 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSetROP2
);
455 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
457 update_masks( pdev
, rop
);
459 return next
->funcs
->pSetROP2( next
, rop
);
462 /***********************************************************************
463 * dibdrv_SetTextColor
465 static COLORREF
dibdrv_SetTextColor( PHYSDEV dev
, COLORREF color
)
467 PHYSDEV next
= GET_NEXT_PHYSDEV( dev
, pSetTextColor
);
468 dibdrv_physdev
*pdev
= get_dibdrv_pdev(dev
);
470 pdev
->text_color
= get_pixel_color( pdev
, color
, TRUE
);
471 update_aa_ranges( pdev
);
473 return next
->funcs
->pSetTextColor( next
, color
);
476 const struct gdi_dc_funcs dib_driver
=
478 NULL
, /* pAbortDoc */
479 NULL
, /* pAbortPath */
480 dibdrv_AlphaBlend
, /* pAlphaBlend */
481 NULL
, /* pAngleArc */
484 NULL
, /* pBeginPath */
485 dibdrv_BlendImage
, /* pBlendImage */
486 NULL
, /* pChoosePixelFormat */
488 NULL
, /* pCloseFigure */
489 dibdrv_CopyBitmap
, /* pCopyBitmap */
490 NULL
, /* pCreateBitmap */
491 NULL
, /* pCreateCompatibleDC */
492 dibdrv_CreateDC
, /* pCreateDC */
493 NULL
, /* pCreateDIBSection */
494 dibdrv_DeleteBitmap
, /* pDeleteBitmap */
495 dibdrv_DeleteDC
, /* pDeleteDC */
496 NULL
, /* pDeleteObject */
497 NULL
, /* pDescribePixelFormat */
498 NULL
, /* pDeviceCapabilities */
503 NULL
, /* pEnumFonts */
504 NULL
, /* pEnumICMProfiles */
505 NULL
, /* pExcludeClipRect */
506 NULL
, /* pExtDeviceMode */
507 NULL
, /* pExtEscape */
508 NULL
, /* pExtFloodFill */
509 NULL
, /* pExtSelectClipRgn */
510 dibdrv_ExtTextOut
, /* pExtTextOut */
511 NULL
, /* pFillPath */
513 NULL
, /* pFlattenPath */
514 NULL
, /* pFontIsLinked */
515 NULL
, /* pFrameRgn */
516 NULL
, /* pGdiComment */
517 NULL
, /* pGdiRealizationInfo */
518 NULL
, /* pGetCharABCWidths */
519 NULL
, /* pGetCharABCWidthsI */
520 NULL
, /* pGetCharWidth */
521 NULL
, /* pGetDeviceCaps */
522 NULL
, /* pGetDeviceGammaRamp */
523 NULL
, /* pGetFontData */
524 NULL
, /* pGetFontUnicodeRanges */
525 NULL
, /* pGetGlyphIndices */
526 NULL
, /* pGetGlyphOutline */
527 NULL
, /* pGetICMProfile */
528 dibdrv_GetImage
, /* pGetImage */
529 NULL
, /* pGetKerningPairs */
530 dibdrv_GetNearestColor
, /* pGetNearestColor */
531 NULL
, /* pGetOutlineTextMetrics */
532 dibdrv_GetPixel
, /* pGetPixel */
533 NULL
, /* pGetPixelFormat */
534 NULL
, /* pGetSystemPaletteEntries */
535 NULL
, /* pGetTextCharsetInfo */
536 NULL
, /* pGetTextExtentExPoint */
537 NULL
, /* pGetTextExtentExPointI */
538 NULL
, /* pGetTextFace */
539 NULL
, /* pGetTextMetrics */
540 dibdrv_GradientFill
, /* pGradientFill */
541 NULL
, /* pIntersectClipRect */
542 NULL
, /* pInvertRgn */
543 dibdrv_LineTo
, /* pLineTo */
544 NULL
, /* pModifyWorldTransform */
546 NULL
, /* pOffsetClipRgn */
547 NULL
, /* pOffsetViewportOrg */
548 NULL
, /* pOffsetWindowOrg */
549 dibdrv_PaintRgn
, /* pPaintRgn */
550 dibdrv_PatBlt
, /* pPatBlt */
552 NULL
, /* pPolyBezier */
553 NULL
, /* pPolyBezierTo */
554 NULL
, /* pPolyDraw */
555 NULL
, /* pPolyPolygon */
556 dibdrv_PolyPolyline
, /* pPolyPolyline */
558 dibdrv_Polyline
, /* pPolyline */
559 NULL
, /* pPolylineTo */
560 dibdrv_PutImage
, /* pPutImage */
561 NULL
, /* pRealizeDefaultPalette */
562 NULL
, /* pRealizePalette */
563 dibdrv_Rectangle
, /* pRectangle */
565 NULL
, /* pRestoreDC */
566 NULL
, /* pRoundRect */
568 NULL
, /* pScaleViewportExt */
569 NULL
, /* pScaleWindowExt */
570 dibdrv_SelectBitmap
, /* pSelectBitmap */
571 dibdrv_SelectBrush
, /* pSelectBrush */
572 NULL
, /* pSelectClipPath */
573 NULL
, /* pSelectFont */
574 NULL
, /* pSelectPalette */
575 dibdrv_SelectPen
, /* pSelectPen */
576 NULL
, /* pSetArcDirection */
577 dibdrv_SetBkColor
, /* pSetBkColor */
578 dibdrv_SetBkMode
, /* pSetBkMode */
579 dibdrv_SetDCBrushColor
, /* pSetDCBrushColor */
580 dibdrv_SetDCPenColor
, /* pSetDCPenColor */
581 dibdrv_SetDIBColorTable
, /* pSetDIBColorTable */
582 NULL
, /* pSetDIBitsToDevice */
583 dibdrv_SetDeviceClipping
, /* pSetDeviceClipping */
584 NULL
, /* pSetDeviceGammaRamp */
585 NULL
, /* pSetLayout */
586 NULL
, /* pSetMapMode */
587 NULL
, /* pSetMapperFlags */
588 dibdrv_SetPixel
, /* pSetPixel */
589 NULL
, /* pSetPixelFormat */
590 NULL
, /* pSetPolyFillMode */
591 dibdrv_SetROP2
, /* pSetROP2 */
592 NULL
, /* pSetRelAbs */
593 NULL
, /* pSetStretchBltMode */
594 NULL
, /* pSetTextAlign */
595 NULL
, /* pSetTextCharacterExtra */
596 dibdrv_SetTextColor
, /* pSetTextColor */
597 NULL
, /* pSetTextJustification */
598 NULL
, /* pSetViewportExt */
599 NULL
, /* pSetViewportOrg */
600 NULL
, /* pSetWindowExt */
601 NULL
, /* pSetWindowOrg */
602 NULL
, /* pSetWorldTransform */
603 NULL
, /* pStartDoc */
604 NULL
, /* pStartPage */
605 dibdrv_StretchBlt
, /* pStretchBlt */
606 NULL
, /* pStretchDIBits */
607 NULL
, /* pStrokeAndFillPath */
608 NULL
, /* pStrokePath */
609 NULL
, /* pSwapBuffers */
610 NULL
, /* pUnrealizePalette */
611 NULL
, /* pWidenPath */
612 NULL
, /* pwglCopyContext */
613 NULL
, /* pwglCreateContext */
614 NULL
, /* pwglCreateContextAttribsARB */
615 NULL
, /* pwglDeleteContext */
616 NULL
, /* pwglGetPbufferDCARB */
617 NULL
, /* pwglGetProcAddress */
618 NULL
, /* pwglMakeContextCurrentARB */
619 NULL
, /* pwglMakeCurrent */
620 NULL
, /* pwglSetPixelFormatWINE */
621 NULL
, /* pwglShareLists */
622 NULL
, /* pwglUseFontBitmapsA */
623 NULL
/* pwglUseFontBitmapsW */