зеркало из https://github.com/mozilla/pjs.git
562 строки
21 KiB
Diff
562 строки
21 KiB
Diff
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# HG changeset patch
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# User Robert O'Callahan <robert@ocallahan.org>
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# Date 1249558989 -43200
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# Node ID 0bac4c903d2bb1d5c0d5426209001fc2a77cc105
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# Parent 963b9451ad305924738d05d997a640698cd3af91
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Bug 508730. Don't repeat a Quartz gradient more times than necessary, to avoid Quartz quality problems when there are lots of repeated color stops. r=jmuizelaar
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diff --git a/gfx/cairo/cairo/src/cairo-quartz-surface.c b/gfx/cairo/cairo/src/cairo-quartz-surface.c
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--- a/gfx/cairo/cairo/src/cairo-quartz-surface.c
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+++ b/gfx/cairo/cairo/src/cairo-quartz-surface.c
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@@ -710,82 +710,100 @@ CreateGradientFunction (const cairo_grad
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return CGFunctionCreate (pat,
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1,
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input_value_range,
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4,
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gradient_output_value_ranges,
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&gradient_callbacks);
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}
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+static void
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+UpdateLinearParametersToIncludePoint(double *min_t, double *max_t, CGPoint *start,
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+ double dx, double dy,
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+ double x, double y)
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+{
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+ /* Compute a parameter t such that a line perpendicular to the (dx,dy)
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+ vector, passing through (start->x + dx*t, start->y + dy*t), also
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+ passes through (x,y).
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+
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+ Let px = x - start->x, py = y - start->y.
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+ t is given by
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+ (px - dx*t)*dx + (py - dy*t)*dy = 0
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+
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+ Solving for t we get
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+ numerator = dx*px + dy*py
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+ denominator = dx^2 + dy^2
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+ t = numerator/denominator
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+
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+ In CreateRepeatingLinearGradientFunction we know the length of (dx,dy)
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+ is not zero. (This is checked in _cairo_quartz_setup_linear_source.)
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+ */
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+ double px = x - start->x;
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+ double py = y - start->y;
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+ double numerator = dx*px + dy*py;
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+ double denominator = dx*dx + dy*dy;
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+ double t = numerator/denominator;
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+
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+ if (*min_t > t) {
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+ *min_t = t;
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+ }
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+ if (*max_t < t) {
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+ *max_t = t;
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+ }
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+}
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+
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static CGFunctionRef
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CreateRepeatingLinearGradientFunction (cairo_quartz_surface_t *surface,
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const cairo_gradient_pattern_t *gpat,
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CGPoint *start, CGPoint *end,
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- CGAffineTransform matrix)
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+ cairo_rectangle_int_t *extents)
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{
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cairo_pattern_t *pat;
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float input_value_range[2];
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+ double t_min = 0.;
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+ double t_max = 0.;
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+ double dx = end->x - start->x;
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+ double dy = end->y - start->y;
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+ double bounds_x1, bounds_x2, bounds_y1, bounds_y2;
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- CGPoint mstart, mend;
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+ if (!extents) {
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+ extents = &surface->extents;
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+ }
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+ bounds_x1 = extents->x;
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+ bounds_y1 = extents->y;
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+ bounds_x2 = extents->x + extents->width;
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+ bounds_y2 = extents->y + extents->height;
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+ _cairo_matrix_transform_bounding_box (&gpat->base.matrix,
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+ &bounds_x1, &bounds_y1,
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+ &bounds_x2, &bounds_y2,
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+ NULL);
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- double dx, dy;
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- int x_rep_start = 0, x_rep_end = 0;
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- int y_rep_start = 0, y_rep_end = 0;
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+ UpdateLinearParametersToIncludePoint(&t_min, &t_max, start, dx, dy,
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+ bounds_x1, bounds_y1);
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+ UpdateLinearParametersToIncludePoint(&t_min, &t_max, start, dx, dy,
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+ bounds_x2, bounds_y1);
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+ UpdateLinearParametersToIncludePoint(&t_min, &t_max, start, dx, dy,
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+ bounds_x2, bounds_y2);
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+ UpdateLinearParametersToIncludePoint(&t_min, &t_max, start, dx, dy,
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+ bounds_x1, bounds_y2);
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- int rep_start, rep_end;
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-
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- // figure out how many times we'd need to repeat the gradient pattern
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- // to cover the whole (transformed) surface area
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- mstart = CGPointApplyAffineTransform (*start, matrix);
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- mend = CGPointApplyAffineTransform (*end, matrix);
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-
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- dx = fabs (mend.x - mstart.x);
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- dy = fabs (mend.y - mstart.y);
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-
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- if (dx > 1e-6) {
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- x_rep_start = (int) ceil(MIN(mstart.x, mend.x) / dx);
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- x_rep_end = (int) ceil((surface->extents.width - MAX(mstart.x, mend.x)) / dx);
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-
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- if (mend.x < mstart.x) {
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- int swap = x_rep_end;
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- x_rep_end = x_rep_start;
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- x_rep_start = swap;
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- }
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- }
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-
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- if (dy > 1e-6) {
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- y_rep_start = (int) ceil(MIN(mstart.y, mend.y) / dy);
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- y_rep_end = (int) ceil((surface->extents.width - MAX(mstart.y, mend.y)) / dy);
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-
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- if (mend.y < mstart.y) {
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- int swap = y_rep_end;
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- y_rep_end = y_rep_start;
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- y_rep_start = swap;
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- }
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- }
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-
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- rep_start = MAX(x_rep_start, y_rep_start);
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- rep_end = MAX(x_rep_end, y_rep_end);
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-
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- // extend the line between start and end by rep_start times from the start
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- // and rep_end times from the end
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-
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- dx = end->x - start->x;
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- dy = end->y - start->y;
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-
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- start->x = start->x - dx * rep_start;
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- start->y = start->y - dy * rep_start;
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-
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- end->x = end->x + dx * rep_end;
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- end->y = end->y + dy * rep_end;
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+ /* Move t_min and t_max to the nearest usable integer to try to avoid
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+ subtle variations due to numerical instability, especially accidentally
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+ cutting off a pixel. Extending the gradient repetitions is always safe. */
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+ t_min = floor (t_min);
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+ t_max = ceil (t_max);
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+ end->x = start->x + dx*t_max;
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+ end->y = start->y + dy*t_max;
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+ start->x = start->x + dx*t_min;
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+ start->y = start->y + dy*t_min;
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// set the input range for the function -- the function knows how to
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// map values outside of 0.0 .. 1.0 to that range for REPEAT/REFLECT.
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- input_value_range[0] = 0.0 - 1.0 * rep_start;
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- input_value_range[1] = 1.0 + 1.0 * rep_end;
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+ input_value_range[0] = t_min;
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+ input_value_range[1] = t_max;
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if (_cairo_pattern_create_copy (&pat, &gpat->base))
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/* quartz doesn't deal very well with malloc failing, so there's
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* not much point in us trying either */
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return NULL;
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return CGFunctionCreate (pat,
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1,
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@@ -840,35 +858,43 @@ UpdateRadialParameterToIncludePoint(doub
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}
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}
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/* This must only be called when one of the circles properly contains the other */
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static CGFunctionRef
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CreateRepeatingRadialGradientFunction (cairo_quartz_surface_t *surface,
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const cairo_gradient_pattern_t *gpat,
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CGPoint *start, double *start_radius,
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- CGPoint *end, double *end_radius)
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+ CGPoint *end, double *end_radius,
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+ cairo_rectangle_int_t *extents)
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{
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- CGRect clip = CGContextGetClipBoundingBox (surface->cgContext);
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- CGAffineTransform transform;
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cairo_pattern_t *pat;
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float input_value_range[2];
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CGPoint *inner;
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double *inner_radius;
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CGPoint *outer;
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double *outer_radius;
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/* minimum and maximum t-parameter values that will make our gradient
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cover the clipBox */
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double t_min, t_max, t_temp;
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/* outer minus inner */
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double dr, dx, dy;
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+ double bounds_x1, bounds_x2, bounds_y1, bounds_y2;
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- _cairo_quartz_cairo_matrix_to_quartz (&gpat->base.matrix, &transform);
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- /* clip is in cairo device coordinates; get it into cairo user space */
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- clip = CGRectApplyAffineTransform (clip, transform);
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+ if (!extents) {
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+ extents = &surface->extents;
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+ }
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+ bounds_x1 = extents->x;
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+ bounds_y1 = extents->y;
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+ bounds_x2 = extents->x + extents->width;
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+ bounds_y2 = extents->y + extents->height;
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+ _cairo_matrix_transform_bounding_box (&gpat->base.matrix,
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+ &bounds_x1, &bounds_y1,
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+ &bounds_x2, &bounds_y2,
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+ NULL);
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if (*start_radius < *end_radius) {
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/* end circle contains start circle */
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inner = start;
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outer = end;
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inner_radius = start_radius;
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outer_radius = end_radius;
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} else {
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@@ -878,36 +904,37 @@ CreateRepeatingRadialGradientFunction (c
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inner_radius = end_radius;
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outer_radius = start_radius;
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}
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dr = *outer_radius - *inner_radius;
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dx = outer->x - inner->x;
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dy = outer->y - inner->y;
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+ /* We can't round or fudge t_min here, it has to be as accurate as possible. */
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t_min = -(*inner_radius/dr);
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inner->x += t_min*dx;
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inner->y += t_min*dy;
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*inner_radius = 0.;
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t_temp = 0.;
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UpdateRadialParameterToIncludePoint(&t_temp, inner, dr, dx, dy,
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- clip.origin.x, clip.origin.y);
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+ bounds_x1, bounds_y1);
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UpdateRadialParameterToIncludePoint(&t_temp, inner, dr, dx, dy,
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- clip.origin.x + clip.size.width, clip.origin.y);
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+ bounds_x2, bounds_y1);
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UpdateRadialParameterToIncludePoint(&t_temp, inner, dr, dx, dy,
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- clip.origin.x + clip.size.width, clip.origin.y + clip.size.height);
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+ bounds_x2, bounds_y2);
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UpdateRadialParameterToIncludePoint(&t_temp, inner, dr, dx, dy,
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- clip.origin.x, clip.origin.y + clip.size.height);
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+ bounds_x1, bounds_y2);
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/* UpdateRadialParameterToIncludePoint assumes t=0 means radius 0.
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But for the parameter values we use with Quartz, t_min means radius 0.
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- Also, add a small fudge factor to avoid rounding issues. Since the
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- circles are alway expanding and containing the earlier circles, this is
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- OK. */
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- t_temp += 1e-6;
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+ Since the circles are alway expanding and contain the earlier circles,
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+ it's safe to extend t_max/t_temp as much as we want, so round t_temp up
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+ to the nearest integer. This may help us give stable results. */
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+ t_temp = ceil (t_temp);
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t_max = t_min + t_temp;
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outer->x = inner->x + t_temp*dx;
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outer->y = inner->y + t_temp*dy;
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*outer_radius = t_temp*dr;
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/* set the input range for the function -- the function knows how to
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map values outside of 0.0 .. 1.0 to that range for REPEAT/REFLECT. */
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if (*start_radius < *end_radius) {
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@@ -1218,33 +1245,57 @@ _cairo_quartz_setup_fallback_source (cai
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surface->sourceImageRect = CGRectMake (0.0, 0.0, w, h);
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surface->sourceImage = img;
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surface->sourceImageSurface = fallback;
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surface->sourceTransform = CGAffineTransformMakeTranslation (x0, y0);
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return DO_IMAGE;
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}
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+/*
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+Quartz does not support repeating radients. We handle repeating gradients
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+by manually extending the gradient and repeating color stops. We need to
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+minimize the number of repetitions since Quartz seems to sample our color
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+function across the entire range, even if part of that range is not needed
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+for the visible area of the gradient, and it samples with some fixed resolution,
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+so if the gradient range is too large it samples with very low resolution and
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+the gradient is very coarse. CreateRepeatingLinearGradientFunction and
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+CreateRepeatingRadialGradientFunction compute the number of repetitions needed
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+based on the extents of the object (the clip region cannot be used here since
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+we don't want the rasterization of the entire gradient to depend on the
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+clip region).
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+*/
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static cairo_quartz_action_t
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_cairo_quartz_setup_linear_source (cairo_quartz_surface_t *surface,
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- const cairo_linear_pattern_t *lpat)
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+ const cairo_linear_pattern_t *lpat,
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+ cairo_rectangle_int_t *extents)
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{
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const cairo_pattern_t *abspat = &lpat->base.base;
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cairo_matrix_t mat;
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CGPoint start, end;
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CGFunctionRef gradFunc;
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CGColorSpaceRef rgb;
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bool extend = abspat->extend == CAIRO_EXTEND_PAD;
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if (lpat->base.n_stops == 0) {
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CGContextSetRGBStrokeColor (surface->cgContext, 0., 0., 0., 0.);
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CGContextSetRGBFillColor (surface->cgContext, 0., 0., 0., 0.);
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return DO_SOLID;
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}
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+ if (lpat->p1.x == lpat->p2.x &&
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+ lpat->p1.y == lpat->p2.y) {
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+ /* Quartz handles cases where the vector has no length very
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+ * differently from pixman.
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+ * Whatever the correct behaviour is, let's at least have only pixman's
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+ * implementation to worry about.
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+ */
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+ return _cairo_quartz_setup_fallback_source (surface, abspat);
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+ }
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+
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mat = abspat->matrix;
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cairo_matrix_invert (&mat);
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_cairo_quartz_cairo_matrix_to_quartz (&mat, &surface->sourceTransform);
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rgb = CGColorSpaceCreateDeviceRGB();
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start = CGPointMake (_cairo_fixed_to_double (lpat->p1.x),
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_cairo_fixed_to_double (lpat->p1.y));
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@@ -1254,33 +1305,34 @@ _cairo_quartz_setup_linear_source (cairo
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if (abspat->extend == CAIRO_EXTEND_NONE ||
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abspat->extend == CAIRO_EXTEND_PAD)
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{
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gradFunc = CreateGradientFunction (&lpat->base);
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} else {
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gradFunc = CreateRepeatingLinearGradientFunction (surface,
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&lpat->base,
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&start, &end,
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- surface->sourceTransform);
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+ extents);
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}
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surface->sourceShading = CGShadingCreateAxial (rgb,
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start, end,
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gradFunc,
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extend, extend);
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CGColorSpaceRelease(rgb);
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CGFunctionRelease(gradFunc);
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return DO_SHADING;
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}
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static cairo_quartz_action_t
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_cairo_quartz_setup_radial_source (cairo_quartz_surface_t *surface,
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- const cairo_radial_pattern_t *rpat)
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+ const cairo_radial_pattern_t *rpat,
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+ cairo_rectangle_int_t *extents)
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{
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const cairo_pattern_t *abspat = &rpat->base.base;
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cairo_matrix_t mat;
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CGPoint start, end;
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CGFunctionRef gradFunc;
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CGColorSpaceRef rgb;
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bool extend = abspat->extend == CAIRO_EXTEND_PAD;
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double c1x = _cairo_fixed_to_double (rpat->c1.x);
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@@ -1322,17 +1374,18 @@ _cairo_quartz_setup_radial_source (cairo
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if (abspat->extend == CAIRO_EXTEND_NONE ||
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abspat->extend == CAIRO_EXTEND_PAD)
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{
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gradFunc = CreateGradientFunction (&rpat->base);
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} else {
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gradFunc = CreateRepeatingRadialGradientFunction (surface,
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&rpat->base,
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&start, &r1,
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- &end, &r2);
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+ &end, &r2,
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+ extents);
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}
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surface->sourceShading = CGShadingCreateRadial (rgb,
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start,
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r1,
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end,
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r2,
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gradFunc,
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||
|
@@ -1341,17 +1394,18 @@ _cairo_quartz_setup_radial_source (cairo
|
||
|
CGColorSpaceRelease(rgb);
|
||
|
CGFunctionRelease(gradFunc);
|
||
|
|
||
|
return DO_SHADING;
|
||
|
}
|
||
|
|
||
|
static cairo_quartz_action_t
|
||
|
_cairo_quartz_setup_source (cairo_quartz_surface_t *surface,
|
||
|
- const cairo_pattern_t *source)
|
||
|
+ const cairo_pattern_t *source,
|
||
|
+ cairo_rectangle_int_t *extents)
|
||
|
{
|
||
|
assert (!(surface->sourceImage || surface->sourceShading || surface->sourcePattern));
|
||
|
|
||
|
surface->oldInterpolationQuality = CGContextGetInterpolationQuality (surface->cgContext);
|
||
|
CGContextSetInterpolationQuality (surface->cgContext, _cairo_quartz_filter_to_quartz (source->filter));
|
||
|
|
||
|
if (source->type == CAIRO_PATTERN_TYPE_SOLID) {
|
||
|
cairo_solid_pattern_t *solid = (cairo_solid_pattern_t *) source;
|
||
|
@@ -1367,24 +1421,22 @@ _cairo_quartz_setup_source (cairo_quartz
|
||
|
solid->color.blue,
|
||
|
solid->color.alpha);
|
||
|
|
||
|
return DO_SOLID;
|
||
|
}
|
||
|
|
||
|
if (source->type == CAIRO_PATTERN_TYPE_LINEAR) {
|
||
|
const cairo_linear_pattern_t *lpat = (const cairo_linear_pattern_t *)source;
|
||
|
- return _cairo_quartz_setup_linear_source (surface, lpat);
|
||
|
-
|
||
|
+ return _cairo_quartz_setup_linear_source (surface, lpat, extents);
|
||
|
}
|
||
|
|
||
|
if (source->type == CAIRO_PATTERN_TYPE_RADIAL) {
|
||
|
const cairo_radial_pattern_t *rpat = (const cairo_radial_pattern_t *)source;
|
||
|
- return _cairo_quartz_setup_radial_source (surface, rpat);
|
||
|
-
|
||
|
+ return _cairo_quartz_setup_radial_source (surface, rpat, extents);
|
||
|
}
|
||
|
|
||
|
if (source->type == CAIRO_PATTERN_TYPE_SURFACE &&
|
||
|
(source->extend == CAIRO_EXTEND_NONE || (CGContextDrawTiledImagePtr && source->extend == CAIRO_EXTEND_REPEAT)))
|
||
|
{
|
||
|
const cairo_surface_pattern_t *spat = (const cairo_surface_pattern_t *) source;
|
||
|
cairo_surface_t *pat_surf = spat->surface;
|
||
|
CGImageRef img;
|
||
|
@@ -1852,17 +1904,17 @@ _cairo_quartz_surface_paint (void *abstr
|
||
|
if (IS_EMPTY(surface))
|
||
|
return CAIRO_STATUS_SUCCESS;
|
||
|
|
||
|
if (op == CAIRO_OPERATOR_DEST)
|
||
|
return CAIRO_STATUS_SUCCESS;
|
||
|
|
||
|
CGContextSetCompositeOperation (surface->cgContext, _cairo_quartz_cairo_operator_to_quartz (op));
|
||
|
|
||
|
- action = _cairo_quartz_setup_source (surface, source);
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, NULL);
|
||
|
|
||
|
if (action == DO_SOLID || action == DO_PATTERN) {
|
||
|
CGContextFillRect (surface->cgContext, CGRectMake(surface->extents.x,
|
||
|
surface->extents.y,
|
||
|
surface->extents.width,
|
||
|
surface->extents.height));
|
||
|
} else if (action == DO_SHADING) {
|
||
|
CGContextSaveGState (surface->cgContext);
|
||
|
@@ -1886,16 +1938,35 @@ _cairo_quartz_surface_paint (void *abstr
|
||
|
}
|
||
|
|
||
|
_cairo_quartz_teardown_source (surface, source);
|
||
|
|
||
|
ND((stderr, "-- paint\n"));
|
||
|
return rv;
|
||
|
}
|
||
|
|
||
|
+static cairo_bool_t
|
||
|
+_cairo_quartz_source_needs_extents (const cairo_pattern_t *source)
|
||
|
+{
|
||
|
+ /* For repeating gradients we need to manually extend the gradient and
|
||
|
+ repeat stops, since Quartz doesn't support repeating gradients natively.
|
||
|
+ We need to minimze the number of repeated stops, and since rasterization
|
||
|
+ depends on the number of repetitions we use (even if some of the
|
||
|
+ repetitions go beyond the extents of the object or outside the clip
|
||
|
+ region), it's important to use the same number of repetitions when
|
||
|
+ rendering an object no matter what the clip region is. So the
|
||
|
+ computation of the repetition count cannot depended on the clip region,
|
||
|
+ and should only depend on the object extents, so we need to compute
|
||
|
+ the object extents for repeating gradients. */
|
||
|
+ return (source->type == CAIRO_PATTERN_TYPE_LINEAR ||
|
||
|
+ source->type == CAIRO_PATTERN_TYPE_RADIAL) &&
|
||
|
+ (source->extend == CAIRO_EXTEND_REPEAT ||
|
||
|
+ source->extend == CAIRO_EXTEND_REFLECT);
|
||
|
+}
|
||
|
+
|
||
|
static cairo_int_status_t
|
||
|
_cairo_quartz_surface_fill (void *abstract_surface,
|
||
|
cairo_operator_t op,
|
||
|
const cairo_pattern_t *source,
|
||
|
cairo_path_fixed_t *path,
|
||
|
cairo_fill_rule_t fill_rule,
|
||
|
double tolerance,
|
||
|
cairo_antialias_t antialias,
|
||
|
@@ -1926,17 +1997,27 @@ _cairo_quartz_surface_fill (void *abstra
|
||
|
return CAIRO_STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
CGContextSaveGState (surface->cgContext);
|
||
|
|
||
|
CGContextSetShouldAntialias (surface->cgContext, (antialias != CAIRO_ANTIALIAS_NONE));
|
||
|
CGContextSetCompositeOperation (surface->cgContext, _cairo_quartz_cairo_operator_to_quartz (op));
|
||
|
|
||
|
- action = _cairo_quartz_setup_source (surface, source);
|
||
|
+ if (_cairo_quartz_source_needs_extents (source))
|
||
|
+ {
|
||
|
+ /* We don't need precise extents since these are only used to
|
||
|
+ compute the number of gradient reptitions needed to cover the
|
||
|
+ object. */
|
||
|
+ cairo_rectangle_int_t path_extents;
|
||
|
+ _cairo_path_fixed_approximate_fill_extents (path, &path_extents);
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, &path_extents);
|
||
|
+ } else {
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, NULL);
|
||
|
+ }
|
||
|
|
||
|
CGContextBeginPath (surface->cgContext);
|
||
|
|
||
|
stroke.cgContext = surface->cgContext;
|
||
|
stroke.ctm_inverse = NULL;
|
||
|
rv = _cairo_quartz_cairo_path_to_quartz_context (path, &stroke);
|
||
|
if (rv)
|
||
|
goto BAIL;
|
||
|
@@ -2059,17 +2140,24 @@ _cairo_quartz_surface_stroke (void *abst
|
||
|
|
||
|
CGContextSetLineDash (surface->cgContext, style->dash_offset, fdash, max_dashes);
|
||
|
if (fdash != sdash)
|
||
|
free (fdash);
|
||
|
}
|
||
|
|
||
|
CGContextSetCompositeOperation (surface->cgContext, _cairo_quartz_cairo_operator_to_quartz (op));
|
||
|
|
||
|
- action = _cairo_quartz_setup_source (surface, source);
|
||
|
+ if (_cairo_quartz_source_needs_extents (source))
|
||
|
+ {
|
||
|
+ cairo_rectangle_int_t path_extents;
|
||
|
+ _cairo_path_fixed_approximate_stroke_extents (path, style, ctm, &path_extents);
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, &path_extents);
|
||
|
+ } else {
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, NULL);
|
||
|
+ }
|
||
|
|
||
|
CGContextBeginPath (surface->cgContext);
|
||
|
|
||
|
stroke.cgContext = surface->cgContext;
|
||
|
stroke.ctm_inverse = ctm_inverse;
|
||
|
rv = _cairo_quartz_cairo_path_to_quartz_context (path, &stroke);
|
||
|
if (rv)
|
||
|
goto BAIL;
|
||
|
@@ -2180,17 +2268,26 @@ _cairo_quartz_surface_show_glyphs (void
|
||
|
if (op == CAIRO_OPERATOR_DEST)
|
||
|
return CAIRO_STATUS_SUCCESS;
|
||
|
|
||
|
if (cairo_scaled_font_get_type (scaled_font) != CAIRO_FONT_TYPE_QUARTZ)
|
||
|
return CAIRO_INT_STATUS_UNSUPPORTED;
|
||
|
|
||
|
CGContextSaveGState (surface->cgContext);
|
||
|
|
||
|
- action = _cairo_quartz_setup_source (surface, source);
|
||
|
+ if (_cairo_quartz_source_needs_extents (source))
|
||
|
+ {
|
||
|
+ cairo_rectangle_int_t glyph_extents;
|
||
|
+ _cairo_scaled_font_glyph_device_extents (scaled_font, glyphs, num_glyphs,
|
||
|
+ &glyph_extents);
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, &glyph_extents);
|
||
|
+ } else {
|
||
|
+ action = _cairo_quartz_setup_source (surface, source, NULL);
|
||
|
+ }
|
||
|
+
|
||
|
if (action == DO_SOLID || action == DO_PATTERN) {
|
||
|
CGContextSetTextDrawingMode (surface->cgContext, kCGTextFill);
|
||
|
} else if (action == DO_IMAGE || action == DO_TILED_IMAGE || action == DO_SHADING) {
|
||
|
CGContextSetTextDrawingMode (surface->cgContext, kCGTextClip);
|
||
|
isClipping = TRUE;
|
||
|
} else {
|
||
|
if (action != DO_NOTHING)
|
||
|
rv = CAIRO_INT_STATUS_UNSUPPORTED;
|