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>
This commit is contained in:
parent
6e18d3d2e2
commit
839a951f67
|
@ -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);
|
||||
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;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue