Module: wine Branch: master Commit: 839a951f673cf00decd33b212aff60127ffb72ff URL: https://source.winehq.org/git/wine.git/?a=commit;h=839a951f673cf00decd33b212...
Author: Jacek Caban jacek@codeweavers.com Date: Thu Sep 9 14:00:47 2021 +0200
gdi32: Factor out get_bitmap_info.
Signed-off-by: Jacek Caban jacek@codeweavers.com Signed-off-by: Huw Davies huw@codeweavers.com Signed-off-by: Alexandre Julliard julliard@winehq.org
---
dlls/gdi32/emfdc.c | 152 +++++++++++++++++++++++++++++------------------------ 1 file changed, 84 insertions(+), 68 deletions(-)
diff --git a/dlls/gdi32/emfdc.c b/dlls/gdi32/emfdc.c index df4515aee8e..84069bdba3a 100644 --- a/dlls/gdi32/emfdc.c +++ b/dlls/gdi32/emfdc.c @@ -107,6 +107,84 @@ static void emfdc_update_bounds( struct emf *emf, RECTL *rect ) } }
+static UINT get_bitmap_info( HDC *hdc, HBITMAP *bitmap, BITMAPINFO *info ) +{ + HBITMAP blit_bitmap; + HDC blit_dc; + UINT info_size, bpp; + DIBSECTION dib; + + if (!(info_size = GetObjectW( *bitmap, sizeof(dib), &dib ))) return 0; + + if (info_size == sizeof(dib)) + { + blit_dc = *hdc; + blit_bitmap = *bitmap; + } + else + { + unsigned char dib_info_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])]; + BITMAPINFO *dib_info = (BITMAPINFO *)dib_info_buffer; + BITMAP bmp = dib.dsBm; + HPALETTE palette; + void *bits; + + assert( info_size == sizeof(BITMAP) ); + + dib_info->bmiHeader.biSize = sizeof(dib_info->bmiHeader); + dib_info->bmiHeader.biWidth = bmp.bmWidth; + dib_info->bmiHeader.biHeight = bmp.bmHeight; + dib_info->bmiHeader.biPlanes = 1; + dib_info->bmiHeader.biBitCount = bmp.bmBitsPixel; + dib_info->bmiHeader.biCompression = BI_RGB; + dib_info->bmiHeader.biSizeImage = 0; + dib_info->bmiHeader.biXPelsPerMeter = 0; + dib_info->bmiHeader.biYPelsPerMeter = 0; + dib_info->bmiHeader.biClrUsed = 0; + dib_info->bmiHeader.biClrImportant = 0; + switch (dib_info->bmiHeader.biBitCount) + { + case 16: + ((DWORD *)dib_info->bmiColors)[0] = 0xf800; + ((DWORD *)dib_info->bmiColors)[1] = 0x07e0; + ((DWORD *)dib_info->bmiColors)[2] = 0x001f; + break; + case 32: + ((DWORD *)dib_info->bmiColors)[0] = 0xff0000; + ((DWORD *)dib_info->bmiColors)[1] = 0x00ff00; + ((DWORD *)dib_info->bmiColors)[2] = 0x0000ff; + break; + default: + if (dib_info->bmiHeader.biBitCount > 8) break; + if (!(palette = GetCurrentObject( *hdc, OBJ_PAL ))) return FALSE; + if (!GetPaletteEntries( palette, 0, 256, (PALETTEENTRY *)dib_info->bmiColors )) + return FALSE; + } + + if (!(blit_dc = NtGdiCreateCompatibleDC( *hdc ))) return FALSE; + if (!(blit_bitmap = CreateDIBSection( blit_dc, dib_info, DIB_RGB_COLORS, &bits, NULL, 0 ))) + goto err; + if (!SelectObject( blit_dc, blit_bitmap )) goto err; + if (!BitBlt( blit_dc, 0, 0, bmp.bmWidth, bmp.bmHeight, *hdc, 0, 0, SRCCOPY )) + goto err; + } + if (!GetDIBits( blit_dc, blit_bitmap, 0, INT_MAX, NULL, info, DIB_RGB_COLORS )) + goto err; + + bpp = info->bmiHeader.biBitCount; + if (bpp <= 8) + return sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD); + else if (bpp == 16 || bpp == 32) + return sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD); + + return sizeof(BITMAPINFOHEADER); + +err: + if (blit_dc && blit_dc != *hdc) DeleteDC( blit_dc ); + if (blit_bitmap && blit_bitmap != *bitmap) DeleteObject( blit_bitmap ); + return 0; +} + static UINT emfdc_add_handle( struct emf *emf, HGDIOBJ obj ) { UINT index; @@ -1178,80 +1256,18 @@ static BOOL emfdrv_stretchblt( struct emf *emf, INT x_dst, INT y_dst, INT width_ DWORD rop, DWORD type ) { BITMAPINFO src_info = {{ sizeof( src_info.bmiHeader ) }}; - UINT bmi_size, emr_size, size, bpp; + UINT bmi_size, emr_size, size; HBITMAP bitmap, blit_bitmap = NULL; EMRBITBLT *emr = NULL; BITMAPINFO *bmi; - DIBSECTION dib; HDC blit_dc; - int info_size; BOOL ret = FALSE;
if (!(bitmap = GetCurrentObject( hdc_src, OBJ_BITMAP ))) return FALSE; - if (!(info_size = GetObjectW( bitmap, sizeof(dib), &dib ))) return FALSE; - - if (info_size == sizeof(DIBSECTION)) - { - blit_dc = hdc_src; - blit_bitmap = bitmap; - } - else - { - unsigned char dib_info_buffer[FIELD_OFFSET(BITMAPINFO, bmiColors[256])]; - BITMAPINFO *dib_info = (BITMAPINFO *)dib_info_buffer; - BITMAP bmp = dib.dsBm; - HPALETTE palette; - void *bits; - - assert( info_size == sizeof(BITMAP) ); - - dib_info->bmiHeader.biSize = sizeof(dib_info->bmiHeader); - dib_info->bmiHeader.biWidth = bmp.bmWidth; - dib_info->bmiHeader.biHeight = bmp.bmHeight; - dib_info->bmiHeader.biPlanes = 1; - dib_info->bmiHeader.biBitCount = bmp.bmBitsPixel; - dib_info->bmiHeader.biCompression = BI_RGB; - dib_info->bmiHeader.biSizeImage = 0; - dib_info->bmiHeader.biXPelsPerMeter = 0; - dib_info->bmiHeader.biYPelsPerMeter = 0; - dib_info->bmiHeader.biClrUsed = 0; - dib_info->bmiHeader.biClrImportant = 0; - switch (dib_info->bmiHeader.biBitCount) - { - case 16: - ((DWORD *)dib_info->bmiColors)[0] = 0xf800; - ((DWORD *)dib_info->bmiColors)[1] = 0x07e0; - ((DWORD *)dib_info->bmiColors)[2] = 0x001f; - break; - case 32: - ((DWORD *)dib_info->bmiColors)[0] = 0xff0000; - ((DWORD *)dib_info->bmiColors)[1] = 0x00ff00; - ((DWORD *)dib_info->bmiColors)[2] = 0x0000ff; - break; - default: - if (dib_info->bmiHeader.biBitCount > 8) break; - if (!(palette = GetCurrentObject( hdc_src, OBJ_PAL ))) return FALSE; - if (!GetPaletteEntries( palette, 0, 256, (PALETTEENTRY *)dib_info->bmiColors )) - return FALSE; - } - - if (!(blit_dc = NtGdiCreateCompatibleDC( hdc_src ))) return FALSE; - if (!(blit_bitmap = CreateDIBSection( blit_dc, dib_info, DIB_RGB_COLORS, &bits, NULL, 0 ))) - goto err; - if (!SelectObject( blit_dc, blit_bitmap )) goto err; - if (!BitBlt( blit_dc, 0, 0, bmp.bmWidth, bmp.bmHeight, hdc_src, 0, 0, SRCCOPY )) - goto err; - } - if (!GetDIBits( blit_dc, blit_bitmap, 0, INT_MAX, NULL, &src_info, DIB_RGB_COLORS )) - goto err;
- bpp = src_info.bmiHeader.biBitCount; - if (bpp <= 8) - bmi_size = sizeof(BITMAPINFOHEADER) + (1 << bpp) * sizeof(RGBQUAD); - else if (bpp == 16 || bpp == 32) - bmi_size = sizeof(BITMAPINFOHEADER) + 3 * sizeof(RGBQUAD); - else - bmi_size = sizeof(BITMAPINFOHEADER); + blit_dc = hdc_src; + blit_bitmap = bitmap; + if (!(bmi_size = get_bitmap_info( &blit_dc, &blit_bitmap, &src_info ))) return FALSE;
/* EMRSTRETCHBLT and EMRALPHABLEND have the same structure */ emr_size = type == EMR_BITBLT ? sizeof(EMRBITBLT) : sizeof(EMRSTRETCHBLT); @@ -1298,8 +1314,8 @@ static BOOL emfdrv_stretchblt( struct emf *emf, INT x_dst, INT y_dst, INT width_
err: HeapFree( GetProcessHeap(), 0, emr ); - if (blit_bitmap && blit_bitmap != bitmap) DeleteObject( blit_bitmap ); - if (blit_dc && blit_dc != hdc_src) DeleteDC( blit_dc ); + if (blit_bitmap != bitmap) DeleteObject( blit_bitmap ); + if (blit_dc != hdc_src) DeleteDC( blit_dc ); return ret; }