diff options
Diffstat (limited to 'src/cairo_surface.c')
| -rw-r--r-- | src/cairo_surface.c | 121 |
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; +} |