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-rw-r--r--src/cairo_surface.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/src/cairo_surface.c b/src/cairo_surface.c
index ff4f39c1f..91ab8aba4 100644
--- a/src/cairo_surface.c
+++ b/src/cairo_surface.c
@@ -38,6 +38,7 @@ _cairo_surface_init (cairo_surface_t *surface,
surface->ref_count = 1;
_cairo_matrix_init (&surface->matrix);
+ surface->filter = CAIRO_FILTER_NEAREST;
surface->repeat = 0;
}
@@ -165,9 +166,16 @@ cairo_surface_set_filter (cairo_surface_t *surface, cairo_filter_t filter)
if (surface == NULL)
return CAIRO_STATUS_NULL_POINTER;
+ surface->filter = filter;
return surface->backend->set_filter (surface, filter);
}
+cairo_filter_t
+cairo_surface_get_filter (cairo_surface_t *surface)
+{
+ return surface->filter;
+}
+
/* XXX: NYI
cairo_status_t
cairo_surface_clip_rectangle (cairo_surface_t *surface,
@@ -364,3 +372,116 @@ _cairo_surface_show_page (cairo_surface_t *surface)
return CAIRO_STATUS_SUCCESS;
}
+cairo_status_t
+_cairo_surface_set_clip_region (cairo_surface_t *surface, pixman_region16_t *region)
+{
+ return surface->backend->set_clip_region (surface, region);
+}
+
+cairo_status_t
+_cairo_surface_create_pattern (cairo_surface_t *surface,
+ cairo_pattern_t *pattern,
+ cairo_box_t *box)
+{
+ cairo_int_status_t status;
+
+ status = surface->backend->create_pattern (surface, pattern, box);
+
+ /* The backend cannot accelerate this pattern, lets create an
+ unaccelerated source instead. */
+ if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
+
+ status = CAIRO_STATUS_SUCCESS;
+ switch (pattern->type) {
+ case CAIRO_PATTERN_LINEAR:
+ case CAIRO_PATTERN_RADIAL: {
+ cairo_image_surface_t *image;
+
+ image = _cairo_pattern_get_image (pattern, box);
+ if (image) {
+ pattern->source = &image->base;
+
+ return CAIRO_STATUS_SUCCESS;
+ } else
+ return CAIRO_STATUS_NO_MEMORY;
+
+ } break;
+ case CAIRO_PATTERN_SOLID:
+ pattern->source =
+ _cairo_surface_create_similar_solid (surface,
+ CAIRO_FORMAT_ARGB32,
+ 1, 1,
+ &pattern->color);
+ if (pattern->source) {
+ cairo_surface_set_repeat (pattern->source, 1);
+
+ return CAIRO_STATUS_SUCCESS;
+ } else
+ return CAIRO_STATUS_NO_MEMORY;
+ break;
+ case CAIRO_PATTERN_SURFACE:
+ status = CAIRO_INT_STATUS_UNSUPPORTED;
+
+ /* handle pattern opacity */
+ if (pattern->color.alpha != 1.0) {
+ int width = ceil (_cairo_fixed_to_double (box->p2.x) -
+ _cairo_fixed_to_double (box->p1.x));
+ int height = ceil (_cairo_fixed_to_double (box->p2.y) -
+ _cairo_fixed_to_double (box->p1.y));
+ cairo_pattern_t alpha;
+
+ pattern->source =
+ cairo_surface_create_similar (surface,
+ CAIRO_FORMAT_ARGB32,
+ width, height);
+ if (pattern->source) {
+ _cairo_pattern_init_solid (&alpha, 1.0, 1.0, 1.0);
+ _cairo_pattern_set_alpha (&alpha, pattern->color.alpha);
+
+ status = _cairo_surface_create_pattern (pattern->source,
+ &alpha, box);
+
+ if (status == CAIRO_STATUS_SUCCESS) {
+ int save_repeat = pattern->u.surface.surface->repeat;
+
+ if (pattern->extend == CAIRO_EXTEND_REPEAT ||
+ pattern->u.surface.surface->repeat == 1)
+ cairo_surface_set_repeat (pattern->u.surface.surface, 1);
+ else
+ cairo_surface_set_repeat (pattern->u.surface.surface, 0);
+
+ status =
+ _cairo_surface_composite (CAIRO_OPERATOR_OVER,
+ pattern->u.surface.surface,
+ alpha.source,
+ pattern->source,
+ 0, 0, 0, 0, 0, 0,
+ width, height);
+
+ cairo_surface_set_repeat (pattern->u.surface.surface,
+ save_repeat);
+
+ if (status == CAIRO_STATUS_SUCCESS) {
+ _cairo_pattern_add_source_offset (pattern,
+ _cairo_fixed_to_double (box->p1.x),
+ _cairo_fixed_to_double (box->p1.y));
+ } else
+ cairo_surface_destroy (pattern->source);
+ }
+
+ _cairo_pattern_fini (&alpha);
+ }
+ }
+
+ if (status != CAIRO_STATUS_SUCCESS) {
+ pattern->source = pattern->u.surface.surface;
+ cairo_surface_reference (pattern->u.surface.surface);
+
+ return CAIRO_STATUS_SUCCESS;
+ }
+ break;
+ }
+ }
+
+ return status;
+}