Exemplo n.º 1
0
BOOL nulldrv_AlphaBlend( PHYSDEV dst_dev, struct bitblt_coords *dst,
                         PHYSDEV src_dev, struct bitblt_coords *src, BLENDFUNCTION func )
{
    DC *dc_src, *dc_dst = get_nulldrv_dc( dst_dev );
    char src_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    char dst_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    BITMAPINFO *src_info = (BITMAPINFO *)src_buffer;
    BITMAPINFO *dst_info = (BITMAPINFO *)dst_buffer;
    DWORD err;
    struct gdi_image_bits bits;

    if (!(dc_src = get_dc_ptr( src_dev->hdc ))) return FALSE;
    src_dev = GET_DC_PHYSDEV( dc_src, pGetImage );
    err = src_dev->funcs->pGetImage( src_dev, src_info, &bits, src );
    if (err) goto done;

    dst_dev = GET_DC_PHYSDEV( dc_dst, pBlendImage );
    copy_bitmapinfo( dst_info, src_info );
    err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func );
    if (err == ERROR_BAD_FORMAT)
    {
        err = convert_bits( src_info, src, dst_info, &bits );
        if (!err) err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func );
    }

    if (err == ERROR_TRANSFORM_NOT_SUPPORTED &&
        ((src->width != dst->width) || (src->height != dst->height)))
    {
        copy_bitmapinfo( src_info, dst_info );
        err = stretch_bits( src_info, src, dst_info, dst, &bits, COLORONCOLOR );
        if (!err) err = dst_dev->funcs->pBlendImage( dst_dev, dst_info, &bits, src, dst, func );
    }

    if (bits.free) bits.free( &bits );
done:
    release_dc_ptr( dc_src );
    if (err) SetLastError( err );
    return !err;
}
Exemplo n.º 2
0
Arquivo: bitmap.c Projeto: bpon/wine
static void set_initial_bitmap_bits( HBITMAP hbitmap, BITMAPOBJ *bmp )
{
    char src_bmibuf[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    BITMAPINFO *src_info = (BITMAPINFO *)src_bmibuf;
    char dst_bmibuf[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    BITMAPINFO *dst_info = (BITMAPINFO *)dst_bmibuf;
    DWORD err;
    struct gdi_image_bits bits;
    struct bitblt_coords src, dst;

    if (!bmp->bitmap.bmBits) return;
    if (bmp->funcs->pPutImage == nulldrv_PutImage) return;

    get_ddb_bitmapinfo( bmp, src_info );

    bits.ptr = bmp->bitmap.bmBits;
    bits.is_copy = FALSE;
    bits.free = NULL;
    bits.param = NULL;

    src.x      = 0;
    src.y      = 0;
    src.width  = bmp->bitmap.bmWidth;
    src.height = bmp->bitmap.bmHeight;
    src.visrect.left   = 0;
    src.visrect.top    = 0;
    src.visrect.right  = bmp->bitmap.bmWidth;
    src.visrect.bottom = bmp->bitmap.bmHeight;
    dst = src;

    copy_bitmapinfo( dst_info, src_info );

    err = bmp->funcs->pPutImage( NULL, hbitmap, 0, dst_info, &bits, &src, &dst, 0 );
    if (err == ERROR_BAD_FORMAT)
    {
        err = convert_bits( src_info, &src, dst_info, &bits, FALSE );
        if (!err) err = bmp->funcs->pPutImage( NULL, hbitmap, 0, dst_info, &bits, &src, &dst, 0 );
        if (bits.free) bits.free( &bits );
    }
}
Exemplo n.º 3
0
BOOL nulldrv_StretchBlt( PHYSDEV dst_dev, struct bitblt_coords *dst,
                         PHYSDEV src_dev, struct bitblt_coords *src, DWORD rop )
{
    DC *dc_src, *dc_dst = get_nulldrv_dc( dst_dev );
    char src_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    char dst_buffer[FIELD_OFFSET( BITMAPINFO, bmiColors[256] )];
    BITMAPINFO *src_info = (BITMAPINFO *)src_buffer;
    BITMAPINFO *dst_info = (BITMAPINFO *)dst_buffer;
    DWORD err;
    struct gdi_image_bits bits;

    if (!(dc_src = get_dc_ptr( src_dev->hdc ))) return FALSE;
    src_dev = GET_DC_PHYSDEV( dc_src, pGetImage );
    if (src_dev->funcs->pGetImage( src_dev, src_info, &bits, src ))
    {
        release_dc_ptr( dc_src );
        return FALSE;
    }

    dst_dev = GET_DC_PHYSDEV( dc_dst, pPutImage );
    copy_bitmapinfo( dst_info, src_info );
    err = dst_dev->funcs->pPutImage( dst_dev, 0, dst_info, &bits, src, dst, rop );
    if (err == ERROR_BAD_FORMAT)
    {
        DWORD dst_colors = dst_info->bmiHeader.biClrUsed;

        /* 1-bpp source without a color table uses the destination DC colors */
        if (src_info->bmiHeader.biBitCount == 1 && !src_info->bmiHeader.biClrUsed)
            get_mono_dc_colors( dst_dev->hdc, src_info, 2 );

        if (dst_info->bmiHeader.biBitCount == 1 && !dst_colors)
        {
            /* 1-bpp destination without a color table requires a fake 1-entry table
             * that contains only the background color; except with a 1-bpp source,
             * in which case it uses the source colors */
            if (src_info->bmiHeader.biBitCount > 1)
                get_mono_dc_colors( src_dev->hdc, dst_info, 1 );
            else
                get_mono_dc_colors( src_dev->hdc, dst_info, 2 );
        }

        if (!(err = convert_bits( src_info, src, dst_info, &bits )))
        {
            /* get rid of the fake destination table */
            dst_info->bmiHeader.biClrUsed = dst_colors;
            err = dst_dev->funcs->pPutImage( dst_dev, 0, dst_info, &bits, src, dst, rop );
        }
    }

    if (err == ERROR_TRANSFORM_NOT_SUPPORTED &&
        ((src->width != dst->width) || (src->height != dst->height)))
    {
        copy_bitmapinfo( src_info, dst_info );
        err = stretch_bits( src_info, src, dst_info, dst, &bits, GetStretchBltMode( dst_dev->hdc ));
        if (!err) err = dst_dev->funcs->pPutImage( dst_dev, 0, dst_info, &bits, src, dst, rop );
    }

    if (bits.free) bits.free( &bits );
    release_dc_ptr( dc_src );
    return !err;
}