Attachment 4980 Details for Bug 6301 – fix

[patch] fix

cairo-win32-surface.diff (text/plain), 1.12 KB, created by Alexander Darovsky on 2006-03-17 21:56:58 UTC

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Creator: Alexander Darovsky

Created: 2006-03-17 21:56:58 UTC

Size: 1.12 KB

patch

obsolete

>--- cairo-win32-surface.c	2006-03-17 15:48:56.000000000 +0500
>+++ cairo-win32-surface.c.new	2006-03-17 15:50:16.000000000 +0500
>@@ -566,6 +566,7 @@
> {
>     static unsigned alpha_blend_checked = FALSE;
>     static cairo_alpha_blend_func_t alpha_blend = NULL;
>+    cairo_rectangle_t rectangle;
> 
>     BLENDFUNCTION blend_function;
> 
>@@ -583,7 +584,7 @@
> 	if (VER_PLATFORM_WIN32_WINDOWS != os.dwPlatformId ||
> 	    os.dwMajorVersion != 4 || os.dwMinorVersion != 10)
> 	{
>-	    HMODULE msimg32_dll = LoadLibrary ("msimg32");
>+	    HMODULE msimg32_dll = LoadLibraryA ("msimg32");
> 	    
> 	    if (msimg32_dll != NULL)
> 		alpha_blend = (cairo_alpha_blend_func_t)GetProcAddress (msimg32_dll,
>@@ -601,6 +602,11 @@
>     blend_function.SourceConstantAlpha = alpha;
>     blend_function.AlphaFormat = src->format == CAIRO_FORMAT_ARGB32 ? AC_SRC_ALPHA : 0;
> 
>+    _cairo_surface_get_extents (src, &rectangle);
>+    if (src_x<0) dst_x-=src_x, src_x=0;
>+    if (src_y<0) dst_y-=src_y, src_y=0;
>+    width=min(width, rectangle.width-src_x);
>+    height=min(height, rectangle.height-src_y);
>     if (!alpha_blend (dst->dc,
> 		      dst_x, dst_y,
> 		      width, height,

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