gecko/gfx/cairo/cairo-x-visual.patch

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diff -r c1195334f839 gfx/cairo/cairo/src/cairo-xlib-surface.c
--- a/gfx/cairo/cairo/src/cairo-xlib-surface.c Fri May 21 17:42:55 2010 +0300
+++ b/gfx/cairo/cairo/src/cairo-xlib-surface.c Fri May 21 19:12:29 2010 +0300
@@ -189,16 +189,57 @@ static const XTransform identity = { {
#define CAIRO_SURFACE_RENDER_HAS_PDF_OPERATORS(surface) CAIRO_SURFACE_RENDER_AT_LEAST((surface), 0, 11)
#define CAIRO_SURFACE_RENDER_SUPPORTS_OPERATOR(surface, op) \
((op) <= CAIRO_OPERATOR_SATURATE || \
(CAIRO_SURFACE_RENDER_HAS_PDF_OPERATORS(surface) && \
(op) <= CAIRO_OPERATOR_HSL_LUMINOSITY))
+static Visual *
+_visual_for_xrender_format(Screen *screen,
+ XRenderPictFormat *xrender_format)
+{
+ int d, v;
+ for (d = 0; d < screen->ndepths; d++) {
+ Depth *d_info = &screen->depths[d];
+ if (d_info->depth != xrender_format->depth)
+ continue;
+
+ for (v = 0; v < d_info->nvisuals; v++) {
+ Visual *visual = &d_info->visuals[v];
+
+ switch (visual->class) {
+ case TrueColor:
+ if (xrender_format->type != PictTypeDirect)
+ continue;
+ break;
+ case DirectColor:
+ /* Prefer TrueColor to DirectColor.
+ (XRenderFindVisualFormat considers both TrueColor and
+ DirectColor Visuals to match the same PictFormat.) */
+ continue;
+ case StaticGray:
+ case GrayScale:
+ case StaticColor:
+ case PseudoColor:
+ if (xrender_format->type != PictTypeIndexed)
+ continue;
+ break;
+ }
+
+ if (xrender_format ==
+ XRenderFindVisualFormat (DisplayOfScreen(screen), visual))
+ return visual;
+ }
+ }
+
+ return NULL;
+}
+
static cairo_status_t
_cairo_xlib_surface_set_clip_region (cairo_xlib_surface_t *surface,
cairo_region_t *region)
{
cairo_bool_t had_clip_rects = surface->clip_region != NULL;
if (had_clip_rects == FALSE && region == NULL)
return CAIRO_STATUS_SUCCESS;
@@ -313,16 +354,19 @@ _cairo_xlib_surface_create_similar (void
* visual/depth etc. as possible. */
pix = XCreatePixmap (src->dpy, src->drawable,
width <= 0 ? 1 : width, height <= 0 ? 1 : height,
xrender_format->depth);
visual = NULL;
if (xrender_format == src->xrender_format)
visual = src->visual;
+ else
+ visual = _visual_for_xrender_format(src->screen->screen,
+ xrender_format);
surface = (cairo_xlib_surface_t *)
_cairo_xlib_surface_create_internal (src->screen, pix,
visual,
xrender_format,
width, height,
xrender_format->depth);
}
@@ -3178,28 +3222,32 @@ cairo_xlib_surface_create_with_xrender_f
Screen *scr,
XRenderPictFormat *format,
int width,
int height)
{
cairo_xlib_screen_t *screen;
cairo_surface_t *surface;
cairo_status_t status;
+ Visual *visual;
if (width > XLIB_COORD_MAX || height > XLIB_COORD_MAX)
return _cairo_surface_create_in_error (CAIRO_STATUS_INVALID_SIZE);
status = _cairo_xlib_screen_get (dpy, scr, &screen);
if (unlikely (status))
return _cairo_surface_create_in_error (status);
X_DEBUG ((dpy, "create_with_xrender_format (drawable=%x)", (unsigned int) drawable));
+ if (format)
+ visual = _visual_for_xrender_format (scr, format);
+
surface = _cairo_xlib_surface_create_internal (screen, drawable,
- NULL, format,
+ visual, format,
width, height, 0);
_cairo_xlib_screen_destroy (screen);
return surface;
}
slim_hidden_def (cairo_xlib_surface_create_with_xrender_format);
/**
@@ -3413,33 +3461,37 @@ cairo_xlib_surface_get_screen (cairo_sur
return surface->screen->screen;
}
/**
* cairo_xlib_surface_get_visual:
* @surface: a #cairo_xlib_surface_t
*
- * Get the X Visual used for underlying X Drawable.
+ * Gets the X Visual associated with @surface, suitable for use with the
+ * underlying X Drawable. If @surface was created by
+ * cairo_xlib_surface_create(), the return value is the Visual passed to that
+ * constructor.
*
- * Return value: the visual.
+ * Return value: the Visual or %NULL if there is no appropriate Visual for
+ * @surface.
*
* Since: 1.2
**/
Visual *
-cairo_xlib_surface_get_visual (cairo_surface_t *abstract_surface)
+cairo_xlib_surface_get_visual (cairo_surface_t *surface)
{
- cairo_xlib_surface_t *surface = (cairo_xlib_surface_t *) abstract_surface;
-
- if (! _cairo_surface_is_xlib (abstract_surface)) {
+ cairo_xlib_surface_t *xlib_surface = (cairo_xlib_surface_t *) surface;
+
+ if (! _cairo_surface_is_xlib (surface)) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return NULL;
}
- return surface->visual;
+ return xlib_surface->visual;
}
/**
* cairo_xlib_surface_get_depth:
* @surface: a #cairo_xlib_surface_t
*
* Get the number of bits used to represent each pixel value.
*