39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From: Benjamin Otte <otte@redhat.com>
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Date: Thu, 29 Apr 2010 16:20:59 +0000
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Subject: xlib: Don't modify variables that are needed later
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In the XCopyArea region code, don't modify src_x/y when they are later
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used in the unbounded fixup code.
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Exposed by composite-integer-translate-source test.
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---
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diff --git a/src/cairo-xlib-surface.c b/src/cairo-xlib-surface.c
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index bedc3fd..30c08d3 100644
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--- a/gfx/cairo/cairo/src/cairo-xlib-surface.c
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+++ b/gfx/cairo/cairo/src/cairo-xlib-surface.c
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@@ -2322,10 +2322,10 @@ _cairo_xlib_surface_composite (cairo_operator_t op,
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width, height,
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dst_x, dst_y);
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} else {
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- int n, num_rects;
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+ int n, num_rects, x, y;
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- src_x += src_attr.x_offset + itx - dst_x;
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- src_y += src_attr.y_offset + ity - dst_y;
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+ x = src_x + src_attr.x_offset + itx - dst_x;
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+ y = src_y + src_attr.y_offset + ity - dst_y;
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num_rects = cairo_region_num_rectangles (clip_region);
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for (n = 0; n < num_rects; n++) {
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@@ -2333,7 +2333,7 @@ _cairo_xlib_surface_composite (cairo_operator_t op,
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cairo_region_get_rectangle (clip_region, n, &rect);
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XCopyArea (dst->dpy, src->drawable, dst->drawable, gc,
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- rect.x + src_x, rect.y + src_y,
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+ rect.x + x, rect.y + y,
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rect.width, rect.height,
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rect.x, rect.y);
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}
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--
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cgit v0.8.3-6-g21f6
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