mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-06-02 08:41:34 +00:00
110 lines
3.4 KiB
Diff
110 lines
3.4 KiB
Diff
diff --git a/gfx/cairo/cairo/src/cairo-win32-surface.c b/gfx/cairo/cairo/src/cairo-win32-surface.c
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--- a/gfx/cairo/cairo/src/cairo-win32-surface.c
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+++ b/gfx/cairo/cairo/src/cairo-win32-surface.c
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@@ -1114,17 +1114,17 @@ static cairo_int_status_t
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cairo_win32_surface_t *dst = abstract_dst;
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cairo_win32_surface_t *src;
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cairo_surface_pattern_t *src_surface_pattern;
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int alpha;
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double scalex, scaley;
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cairo_fixed_t x0_fixed, y0_fixed;
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cairo_int_status_t status;
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- cairo_bool_t needs_alpha, needs_scale, needs_repeat;
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+ cairo_bool_t needs_alpha, needs_scale, needs_repeat, needs_pad;
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cairo_image_surface_t *src_image = NULL;
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cairo_format_t src_format;
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cairo_rectangle_int_t src_extents;
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cairo_rectangle_int_t src_r = { src_x, src_y, width, height };
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cairo_rectangle_int_t dst_r = { dst_x, dst_y, width, height };
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@@ -1145,17 +1145,18 @@ static cairo_int_status_t
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{
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goto UNSUPPORTED;
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}
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if (pattern->type != CAIRO_PATTERN_TYPE_SURFACE)
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goto UNSUPPORTED;
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if (pattern->extend != CAIRO_EXTEND_NONE &&
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- pattern->extend != CAIRO_EXTEND_REPEAT)
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+ pattern->extend != CAIRO_EXTEND_REPEAT &&
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+ pattern->extend != CAIRO_EXTEND_PAD)
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goto UNSUPPORTED;
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if (mask_pattern) {
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/* FIXME: When we fully support RENDER style 4-channel
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* masks we need to check r/g/b != 1.0.
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*/
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if (mask_pattern->type != CAIRO_PATTERN_TYPE_SOLID)
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return CAIRO_INT_STATUS_UNSUPPORTED;
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@@ -1252,16 +1253,17 @@ static cairo_int_status_t
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/* If the src rectangle doesn't wholly lie within the src extents,
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* fudge things. We really need to do fixup on the unpainted
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* region -- e.g. the SOURCE operator is broken for areas outside
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* of the extents, because it won't clear that area to transparent
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* black.
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*/
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+ needs_pad = FALSE;
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if (pattern->extend != CAIRO_EXTEND_REPEAT) {
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needs_repeat = FALSE;
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/* If the src rect and the extents of the source image don't overlap at all,
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* we can't do anything useful here.
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*/
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if (src_r.x > src_extents.width || src_r.y > src_extents.height ||
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(src_r.x + src_r.width) < 0 || (src_r.y + src_r.height) < 0)
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@@ -1273,40 +1275,48 @@ static cairo_int_status_t
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if (src_r.x < 0) {
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src_r.width += src_r.x;
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dst_r.width += src_r.x;
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dst_r.x -= src_r.x;
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src_r.x = 0;
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+ needs_pad = TRUE;
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}
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if (src_r.y < 0) {
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src_r.height += src_r.y;
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dst_r.height += src_r.y;
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dst_r.y -= src_r.y;
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src_r.y = 0;
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+ needs_pad = TRUE;
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}
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if (src_r.x + src_r.width > src_extents.width) {
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src_r.width = src_extents.width - src_r.x;
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dst_r.width = src_r.width;
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+ needs_pad = TRUE;
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}
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if (src_r.y + src_r.height > src_extents.height) {
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src_r.height = src_extents.height - src_r.y;
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dst_r.height = src_r.height;
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+ needs_pad = TRUE;
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}
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} else {
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needs_repeat = TRUE;
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}
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+ if (pattern->extend == CAIRO_EXTEND_PAD && needs_pad) {
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+ goto UNSUPPORTED;
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+ }
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+
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/*
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* Operations that we can do:
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*
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* AlphaBlend uses the following formula for alpha when not use the per-pixel alpha (AlphaFormat = 0)
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* Dst.Alpha = Src.Alpha * (SCA/255.0) + Dst.Alpha * (1.0 - (SCA/255.0))
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* This turns into Dst.Alpha = Src.Alpha when SCA = 255.
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* (http://msdn.microsoft.com/en-us/library/aa921335.aspx)
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*
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