Module: wine Branch: master Commit: e9612c1af06d09dbf03745535288575e05cacb56 URL: http://source.winehq.org/git/wine.git/?a=commit;h=e9612c1af06d09dbf037455352...
Author: Huw Davies huw@codeweavers.com Date: Mon Nov 14 12:49:07 2011 +0000
gdi32: Add support for drawing text in the dib driver.
---
dlls/gdi32/dibdrv/graphics.c | 170 +++++++++++++++++++++++++++++++++++++++++- 1 files changed, 167 insertions(+), 3 deletions(-)
diff --git a/dlls/gdi32/dibdrv/graphics.c b/dlls/gdi32/dibdrv/graphics.c index 343dd0d..be78e1a 100644 --- a/dlls/gdi32/dibdrv/graphics.c +++ b/dlls/gdi32/dibdrv/graphics.c @@ -122,14 +122,141 @@ static inline void get_text_bkgnd_masks( const dibdrv_physdev *pdev, rop_mask *m } }
+static void draw_glyph( dibdrv_physdev *pdev, const POINT *origin, const GLYPHMETRICS *metrics, + const struct gdi_image_bits *image ) +{ + const WINEREGION *clip = get_wine_region( pdev->clip ); + int i; + RECT rect, clipped_rect; + POINT src_origin; + static dib_info glyph_dib; + + glyph_dib.bit_count = 8; + glyph_dib.width = metrics->gmBlackBoxX; + glyph_dib.height = metrics->gmBlackBoxY; + glyph_dib.stride = get_dib_stride( metrics->gmBlackBoxX, 8 ); + glyph_dib.bits = *image; + + rect.left = origin->x + metrics->gmptGlyphOrigin.x; + rect.top = origin->y - metrics->gmptGlyphOrigin.y; + rect.right = rect.left + metrics->gmBlackBoxX; + rect.bottom = rect.top + metrics->gmBlackBoxY; + + for (i = 0; i < clip->numRects; i++) + { + if (intersect_rect( &clipped_rect, &rect, clip->rects + i )) + { + src_origin.x = clipped_rect.left - rect.left; + src_origin.y = clipped_rect.top - rect.top; + + pdev->dib.funcs->draw_glyph( &pdev->dib, &clipped_rect, &glyph_dib, &src_origin, + pdev->text_color, pdev->glyph_intensities ); + } + } + + release_wine_region( pdev->clip ); +} + +static inline UINT get_aa_flags( dibdrv_physdev *pdev ) +{ + LOGFONTW lf; + + if (pdev->dib.bit_count <= 8) return GGO_BITMAP; + + GetObjectW( GetCurrentObject( pdev->dev.hdc, OBJ_FONT ), sizeof(lf), &lf ); + if (lf.lfQuality == NONANTIALIASED_QUALITY) return GGO_BITMAP; + + /* FIXME, check gasp and user prefs */ + return GGO_GRAY4_BITMAP; +} + +static const BYTE masks[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01}; +static const int padding[4] = {0, 3, 2, 1}; + +/*********************************************************************** + * get_glyph_bitmap + * + * Retrieve a 17-level bitmap for the appropiate glyph. + * + * For non-antialiased bitmaps convert them to the 17-level format + * using only values 0 or 16. + */ +static DWORD get_glyph_bitmap( dibdrv_physdev *pdev, UINT index, GLYPHMETRICS *metrics, + struct gdi_image_bits *image ) +{ + UINT aa_flags = get_aa_flags( pdev ), ggo_flags = aa_flags | GGO_GLYPH_INDEX; + static const MAT2 identity = { {0,1}, {0,0}, {0,0}, {0,1} }; + UINT indices[3] = {0, 0, 0x20}; + int i, x, y; + DWORD ret, size; + BYTE *buf, *dst, *src; + int pad, stride; + + image->ptr = NULL; + image->is_copy = FALSE; + image->free = free_heap_bits; + image->param = NULL; + + indices[0] = index; + + for (i = 0; i < sizeof(indices) / sizeof(indices[0]); index = indices[++i]) + { + ret = GetGlyphOutlineW( pdev->dev.hdc, index, ggo_flags, metrics, 0, NULL, &identity ); + if (ret != GDI_ERROR) break; + } + + if (ret == GDI_ERROR) return ERROR_NOT_FOUND; + if (!ret) return ERROR_SUCCESS; /* empty glyph */ + + /* We'll convert non-antialiased 1-bpp bitmaps to 8-bpp, so these sizes relate to 8-bpp */ + pad = padding[ metrics->gmBlackBoxX % 4 ]; + stride = get_dib_stride( metrics->gmBlackBoxX, 8 ); + size = metrics->gmBlackBoxY * stride; + + buf = HeapAlloc( GetProcessHeap(), 0, size ); + if (!buf) return ERROR_OUTOFMEMORY; + + ret = GetGlyphOutlineW( pdev->dev.hdc, index, ggo_flags, metrics, size, buf, &identity ); + if (ret == GDI_ERROR) + { + HeapFree( GetProcessHeap(), 0, buf ); + return ERROR_NOT_FOUND; + } + + if (aa_flags == GGO_BITMAP) + { + for (y = metrics->gmBlackBoxY - 1; y >= 0; y--) + { + src = buf + y * get_dib_stride( metrics->gmBlackBoxX, 1 ); + dst = buf + y * stride; + + if (pad) memset( dst + metrics->gmBlackBoxX, 0, pad ); + + for (x = metrics->gmBlackBoxX - 1; x >= 0; x--) + dst[x] = (src[x / 8] & masks[x % 8]) ? 0x10 : 0; + } + } + else if (pad) + { + for (y = 0, dst = buf; y < metrics->gmBlackBoxY; y++, dst += stride) + memset( dst + metrics->gmBlackBoxX, 0, pad ); + } + + image->ptr = buf; + return ERROR_SUCCESS; +} + /*********************************************************************** * dibdrv_ExtTextOut */ BOOL dibdrv_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *rect, LPCWSTR str, UINT count, const INT *dx ) { - PHYSDEV next = GET_NEXT_PHYSDEV( dev, pExtTextOut ); dibdrv_physdev *pdev = get_dibdrv_pdev(dev); + UINT i; + POINT origin; + DWORD err; + HRGN saved_clip = NULL;
if (flags & ETO_OPAQUE) { @@ -140,8 +267,45 @@ BOOL dibdrv_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags,
if (count == 0) return TRUE;
- flags &= ~ETO_OPAQUE; - return next->funcs->pExtTextOut( next, x, y, flags, rect, str, count, dx ); + if (flags & ETO_CLIPPED) + { + HRGN clip = CreateRectRgnIndirect( rect ); + saved_clip = add_extra_clipping_region( pdev, clip ); + DeleteObject( clip ); + } + + origin.x = x; + origin.y = y; + for (i = 0; i < count; i++) + { + GLYPHMETRICS metrics; + struct gdi_image_bits image; + + err = get_glyph_bitmap( pdev, (UINT)str[i], &metrics, &image ); + if (err) continue; + + if (image.ptr) draw_glyph( pdev, &origin, &metrics, &image ); + if (image.free) image.free( &image ); + + if (dx) + { + if (flags & ETO_PDY) + { + origin.x += dx[ i * 2 ]; + origin.y += dx[ i * 2 + 1]; + } + else + origin.x += dx[ i ]; + } + else + { + origin.x += metrics.gmCellIncX; + origin.y += metrics.gmCellIncY; + } + } + + restore_clipping_region( pdev, saved_clip ); + return TRUE; }
/***********************************************************************