static cairo_surface_t *
_cairo_surface_subsurface_snapshot (void *abstract_surface)
{
cairo_surface_subsurface_t *surface = abstract_surface;
cairo_surface_pattern_t pattern;
cairo_surface_t *clone;
cairo_status_t status;
TRACE ((stderr, "%s: target=%d\n", __FUNCTION__, surface->target->unique_id));
clone = _cairo_surface_create_scratch (surface->target,
surface->target->content,
surface->extents.width,
surface->extents.height,
NULL);
if (unlikely (clone->status))
return clone;
_cairo_pattern_init_for_surface (&pattern, surface->target);
cairo_matrix_init_translate (&pattern.base.matrix,
surface->extents.x, surface->extents.y);
pattern.base.filter = CAIRO_FILTER_NEAREST;
status = _cairo_surface_paint (clone,
CAIRO_OPERATOR_SOURCE,
&pattern.base, NULL);
_cairo_pattern_fini (&pattern.base);
if (unlikely (status)) {
cairo_surface_destroy (clone);
clone = _cairo_surface_create_in_error (status);
}
return clone;
}
cairo_surface_t *
_cairo_surface_wrapper_create_similar (cairo_surface_wrapper_t *wrapper,
cairo_content_t content,
int width,
int height)
{
return _cairo_surface_create_scratch (wrapper->target,
content, width, height, NULL);
}
static cairo_gl_surface_t *
tristrip_to_surface (void *_dst,
const cairo_rectangle_int_t *extents,
cairo_antialias_t antialias,
cairo_tristrip_t *strip)
{
pixman_format_code_t pixman_format;
pixman_image_t *pixman_image;
cairo_surface_t *image, *mask;
cairo_status_t status;
pixman_format = antialias != CAIRO_ANTIALIAS_NONE ? PIXMAN_a8 : PIXMAN_a1,
pixman_image = pixman_image_create_bits (pixman_format,
extents->width,
extents->height,
NULL, 0);
if (unlikely (pixman_image == NULL))
return (cairo_gl_surface_t *)_cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_pixman_image_add_tristrip (pixman_image, extents->x, extents->y, strip);
image = _cairo_image_surface_create_for_pixman_image (pixman_image,
pixman_format);
if (unlikely (image->status)) {
pixman_image_unref (pixman_image);
return (cairo_gl_surface_t *)image;
}
mask = _cairo_surface_create_scratch (_dst,
CAIRO_CONTENT_COLOR_ALPHA,
extents->width,
extents->height,
NULL);
if (unlikely (mask->status)) {
cairo_surface_destroy (image);
return (cairo_gl_surface_t *)mask;
}
status = _cairo_gl_surface_draw_image ((cairo_gl_surface_t *)mask,
(cairo_image_surface_t *)image,
0, 0,
extents->width, extents->height,
0, 0,
TRUE);
cairo_surface_destroy (image);
if (unlikely (status)) {
cairo_surface_destroy (mask);
return (cairo_gl_surface_t*)_cairo_surface_create_in_error (status);
}
return (cairo_gl_surface_t*)mask;
}
cairo_surface_t *
_cairo_clip_get_surface (const cairo_clip_t *clip,
cairo_surface_t *target,
int *tx, int *ty)
{
cairo_surface_t *surface;
cairo_status_t status;
cairo_clip_t *copy, *region;
cairo_clip_path_t *copy_path, *clip_path;
if (clip->num_boxes) {
cairo_path_fixed_t path;
int i;
surface = _cairo_surface_create_scratch (target,
CAIRO_CONTENT_ALPHA,
clip->extents.width,
clip->extents.height,
CAIRO_COLOR_TRANSPARENT);
if (unlikely (surface->status))
return surface;
_cairo_path_fixed_init (&path);
status = CAIRO_STATUS_SUCCESS;
for (i = 0; status == CAIRO_STATUS_SUCCESS && i < clip->num_boxes; i++) {
status = _cairo_path_fixed_add_box (&path, &clip->boxes[i],
-_cairo_fixed_from_int (clip->extents.x),
-_cairo_fixed_from_int (clip->extents.y));
}
if (status == CAIRO_STATUS_SUCCESS)
status = _cairo_surface_fill (surface,
CAIRO_OPERATOR_ADD,
&_cairo_pattern_white.base,
&path,
CAIRO_FILL_RULE_WINDING,
1.,
CAIRO_ANTIALIAS_DEFAULT,
NULL);
_cairo_path_fixed_fini (&path);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return _cairo_surface_create_in_error (status);
}
} else {
surface = _cairo_surface_create_scratch (target,
CAIRO_CONTENT_ALPHA,
clip->extents.width,
clip->extents.height,
CAIRO_COLOR_WHITE);
if (unlikely (surface->status))
return surface;
}
copy = _cairo_clip_copy_with_translation (clip,
-clip->extents.x,
-clip->extents.y);
copy_path = copy->path;
copy->path = NULL;
region = copy;
if (! _cairo_clip_is_region (copy))
region = _cairo_clip_copy_region (copy);
status = CAIRO_STATUS_SUCCESS;
clip_path = copy_path;
while (status == CAIRO_STATUS_SUCCESS && clip_path) {
status = _cairo_surface_fill (surface,
CAIRO_OPERATOR_IN,
&_cairo_pattern_white.base,
&clip_path->path,
clip_path->fill_rule,
clip_path->tolerance,
clip_path->antialias,
region);
clip_path = clip_path->prev;
}
copy->path = copy_path;
_cairo_clip_destroy (copy);
if (region != copy)
_cairo_clip_destroy (region);
if (unlikely (status)) {
cairo_surface_destroy (surface);
return _cairo_surface_create_in_error (status);
}
*tx = clip->extents.x;
*ty = clip->extents.y;
return surface;
}
static cairo_int_status_t
_cairo_shape_mask_compositor_stroke (const cairo_compositor_t *_compositor,
cairo_composite_rectangles_t *extents,
const cairo_path_fixed_t *path,
const cairo_stroke_style_t *style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias)
{
cairo_surface_t *mask;
cairo_surface_pattern_t pattern;
cairo_int_status_t status;
cairo_clip_t *clip;
if (! extents->is_bounded)
return CAIRO_INT_STATUS_UNSUPPORTED;
TRACE ((stderr, "%s\n", __FUNCTION__));
mask = _cairo_surface_create_scratch (extents->surface,
CAIRO_CONTENT_ALPHA,
extents->bounded.width,
extents->bounded.height,
NULL);
if (unlikely (mask->status))
return mask->status;
clip = extents->clip;
if (! _cairo_clip_is_region (clip))
clip = _cairo_clip_copy_region (clip);
if (! mask->is_clear) {
status = _cairo_surface_offset_paint (mask,
extents->bounded.x,
extents->bounded.y,
CAIRO_OPERATOR_CLEAR,
&_cairo_pattern_clear.base,
clip);
if (unlikely (status))
goto error;
}
status = _cairo_surface_offset_stroke (mask,
extents->bounded.x,
extents->bounded.y,
CAIRO_OPERATOR_ADD,
&_cairo_pattern_white.base,
path, style, ctm, ctm_inverse,
tolerance, antialias,
clip);
if (unlikely (status))
goto error;
if (clip != extents->clip) {
status = _cairo_clip_combine_with_surface (extents->clip, mask,
extents->bounded.x,
extents->bounded.y);
if (unlikely (status))
goto error;
}
_cairo_pattern_init_for_surface (&pattern, mask);
cairo_matrix_init_translate (&pattern.base.matrix,
-extents->bounded.x,
-extents->bounded.y);
pattern.base.filter = CAIRO_FILTER_NEAREST;
pattern.base.extend = CAIRO_EXTEND_NONE;
if (extents->op == CAIRO_OPERATOR_SOURCE) {
status = _cairo_surface_mask (extents->surface,
CAIRO_OPERATOR_DEST_OUT,
&_cairo_pattern_white.base,
&pattern.base,
clip);
if ((status == CAIRO_INT_STATUS_SUCCESS)) {
status = _cairo_surface_mask (extents->surface,
CAIRO_OPERATOR_ADD,
&extents->source_pattern.base,
&pattern.base,
clip);
}
} else {
status = _cairo_surface_mask (extents->surface,
extents->op,
&extents->source_pattern.base,
&pattern.base,
clip);
}
_cairo_pattern_fini (&pattern.base);
error:
cairo_surface_destroy (mask);
if (clip != extents->clip)
_cairo_clip_destroy (clip);
return status;
}
static cairo_status_t
_cairo_default_context_push_group (void *abstract_cr, cairo_content_t content)
{
cairo_default_context_t *cr = abstract_cr;
cairo_surface_t *group_surface;
cairo_clip_t *clip;
cairo_status_t status;
clip = _cairo_gstate_get_clip (cr->gstate);
if (_cairo_clip_is_all_clipped (clip)) {
group_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 0, 0);
status = group_surface->status;
if (unlikely (status))
goto bail;
} else {
cairo_surface_t *parent_surface;
cairo_rectangle_int_t extents;
cairo_bool_t bounded, is_empty;
parent_surface = _cairo_gstate_get_target (cr->gstate);
if (unlikely (parent_surface->status))
return parent_surface->status;
if (unlikely (parent_surface->finished))
return _cairo_error (CAIRO_STATUS_SURFACE_FINISHED);
/* Get the extents that we'll use in creating our new group surface */
bounded = _cairo_surface_get_extents (parent_surface, &extents);
if (clip)
/* XXX: This assignment just fixes a compiler warning? */
is_empty = _cairo_rectangle_intersect (&extents,
_cairo_clip_get_extents (clip));
if (!bounded) {
/* XXX: Generic solution? */
group_surface = cairo_recording_surface_create (content, NULL);
extents.x = extents.y = 0;
} else {
group_surface = _cairo_surface_create_scratch (parent_surface,
content,
extents.width,
extents.height,
CAIRO_COLOR_TRANSPARENT);
}
status = group_surface->status;
if (unlikely (status))
goto bail;
/* Set device offsets on the new surface so that logically it appears at
* the same location on the parent surface -- when we pop_group this,
* the source pattern will get fixed up for the appropriate target surface
* device offsets, so we want to set our own surface offsets from /that/,
* and not from the device origin. */
cairo_surface_set_device_offset (group_surface,
parent_surface->device_transform.x0 - extents.x,
parent_surface->device_transform.y0 - extents.y);
cairo_surface_set_device_scale (group_surface,
parent_surface->device_transform.xx,
parent_surface->device_transform.yy);
/* If we have a current path, we need to adjust it to compensate for
* the device offset just applied. */
_cairo_path_fixed_translate (cr->path,
_cairo_fixed_from_int (-extents.x),
_cairo_fixed_from_int (-extents.y));
}
/* create a new gstate for the redirect */
status = _cairo_gstate_save (&cr->gstate, &cr->gstate_freelist);
if (unlikely (status))
goto bail;
status = _cairo_gstate_redirect_target (cr->gstate, group_surface);
bail:
cairo_surface_destroy (group_surface);
return status;
}
static cairo_surface_t *
get_clip_surface (const cairo_spans_compositor_t *compositor,
cairo_surface_t *dst,
const cairo_clip_t *clip,
const cairo_rectangle_int_t *extents)
{
cairo_composite_rectangles_t composite;
cairo_surface_t *surface;
cairo_box_t box;
cairo_polygon_t polygon;
const cairo_clip_path_t *clip_path;
cairo_antialias_t antialias;
cairo_fill_rule_t fill_rule;
cairo_int_status_t status;
assert (clip->path);
surface = _cairo_surface_create_scratch (dst,
CAIRO_CONTENT_ALPHA,
extents->width,
extents->height,
CAIRO_COLOR_TRANSPARENT);
#ifdef WKC_CAIRO_CUSTOMIZE
if (unlikely (surface->status))
return surface;
#endif
_cairo_box_from_rectangle (&box, extents);
_cairo_polygon_init (&polygon, &box, 1);
clip_path = clip->path;
status = _cairo_path_fixed_fill_to_polygon (&clip_path->path,
clip_path->tolerance,
&polygon);
if (unlikely (status))
goto cleanup_polygon;
polygon.num_limits = 0;
antialias = clip_path->antialias;
fill_rule = clip_path->fill_rule;
if (clip->boxes) {
cairo_polygon_t intersect;
cairo_boxes_t tmp;
_cairo_boxes_init_for_array (&tmp, clip->boxes, clip->num_boxes);
status= _cairo_polygon_init_boxes (&intersect, &tmp);
if (unlikely (status))
goto cleanup_polygon;
status = _cairo_polygon_intersect (&polygon, fill_rule,
&intersect, CAIRO_FILL_RULE_WINDING);
_cairo_polygon_fini (&intersect);
if (unlikely (status))
goto cleanup_polygon;
fill_rule = CAIRO_FILL_RULE_WINDING;
}
polygon.limits = NULL;
polygon.num_limits = 0;
clip_path = clip_path->prev;
while (clip_path) {
if (clip_path->antialias == antialias) {
cairo_polygon_t next;
_cairo_polygon_init (&next, NULL, 0);
status = _cairo_path_fixed_fill_to_polygon (&clip_path->path,
clip_path->tolerance,
&next);
if (likely (status == CAIRO_INT_STATUS_SUCCESS))
status = _cairo_polygon_intersect (&polygon, fill_rule,
&next, clip_path->fill_rule);
_cairo_polygon_fini (&next);
if (unlikely (status))
goto cleanup_polygon;
fill_rule = CAIRO_FILL_RULE_WINDING;
}
clip_path = clip_path->prev;
}
_cairo_polygon_translate (&polygon, -extents->x, -extents->y);
status = _cairo_composite_rectangles_init_for_polygon (&composite, surface,
CAIRO_OPERATOR_ADD,
&_cairo_pattern_white.base,
&polygon,
NULL);
if (unlikely (status))
goto cleanup_polygon;
status = composite_polygon (compositor, &composite,
&polygon, fill_rule, antialias);
_cairo_composite_rectangles_fini (&composite);
_cairo_polygon_fini (&polygon);
if (unlikely (status))
goto error;
_cairo_polygon_init (&polygon, &box, 1);
clip_path = clip->path;
antialias = clip_path->antialias == CAIRO_ANTIALIAS_DEFAULT ? CAIRO_ANTIALIAS_NONE : CAIRO_ANTIALIAS_DEFAULT;
clip_path = clip_path->prev;
while (clip_path) {
if (clip_path->antialias == antialias) {
if (polygon.num_edges == 0) {
status = _cairo_path_fixed_fill_to_polygon (&clip_path->path,
clip_path->tolerance,
&polygon);
fill_rule = clip_path->fill_rule;
polygon.limits = NULL;
polygon.num_limits = 0;
} else {
cairo_polygon_t next;
_cairo_polygon_init (&next, NULL, 0);
status = _cairo_path_fixed_fill_to_polygon (&clip_path->path,
clip_path->tolerance,
&next);
if (likely (status == CAIRO_INT_STATUS_SUCCESS))
status = _cairo_polygon_intersect (&polygon, fill_rule,
&next, clip_path->fill_rule);
_cairo_polygon_fini (&next);
fill_rule = CAIRO_FILL_RULE_WINDING;
}
if (unlikely (status))
goto error;
}
clip_path = clip_path->prev;
}
if (polygon.num_edges) {
_cairo_polygon_translate (&polygon, -extents->x, -extents->y);
status = _cairo_composite_rectangles_init_for_polygon (&composite, surface,
CAIRO_OPERATOR_IN,
&_cairo_pattern_white.base,
&polygon,
NULL);
if (unlikely (status))
goto cleanup_polygon;
status = composite_polygon (compositor, &composite,
&polygon, fill_rule, antialias);
_cairo_composite_rectangles_fini (&composite);
_cairo_polygon_fini (&polygon);
if (unlikely (status))
goto error;
}
return surface;
cleanup_polygon:
_cairo_polygon_fini (&polygon);
error:
cairo_surface_destroy (surface);
return _cairo_int_surface_create_in_error (status);
}
static cairo_int_status_t
traps_to_operand (void *_dst,
const cairo_rectangle_int_t *extents,
cairo_antialias_t antialias,
cairo_traps_t *traps,
cairo_gl_operand_t *operand,
int dst_x, int dst_y)
{
pixman_format_code_t pixman_format;
pixman_image_t *pixman_image;
cairo_surface_t *image, *mask;
cairo_surface_pattern_t pattern;
cairo_status_t status;
pixman_format = antialias != CAIRO_ANTIALIAS_NONE ? PIXMAN_a8 : PIXMAN_a1;
pixman_image = pixman_image_create_bits (pixman_format,
extents->width,
extents->height,
NULL, 0);
if (unlikely (pixman_image == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
_pixman_image_add_traps (pixman_image, extents->x, extents->y, traps);
image = _cairo_image_surface_create_for_pixman_image (pixman_image,
pixman_format);
if (unlikely (image->status)) {
pixman_image_unref (pixman_image);
return image->status;
}
/* GLES2 only supports RGB/RGBA when uploading */
if (_cairo_gl_get_flavor () == CAIRO_GL_FLAVOR_ES) {
cairo_surface_pattern_t pattern;
cairo_surface_t *rgba_image;
/* XXX perform this fixup inside _cairo_gl_draw_image() */
rgba_image =
_cairo_image_surface_create_with_pixman_format (NULL,
_cairo_is_little_endian () ? PIXMAN_a8b8g8r8 : PIXMAN_r8g8b8a8,
extents->width,
extents->height,
0);
if (unlikely (rgba_image->status))
return rgba_image->status;
_cairo_pattern_init_for_surface (&pattern, image);
status = _cairo_surface_paint (rgba_image, CAIRO_OPERATOR_SOURCE,
&pattern.base, NULL);
_cairo_pattern_fini (&pattern.base);
cairo_surface_destroy (image);
image = rgba_image;
if (unlikely (status)) {
cairo_surface_destroy (image);
return status;
}
}
mask = _cairo_surface_create_scratch (_dst,
CAIRO_CONTENT_COLOR_ALPHA,
extents->width,
extents->height,
NULL);
if (unlikely (mask->status)) {
cairo_surface_destroy (image);
return mask->status;
}
status = _cairo_gl_surface_draw_image ((cairo_gl_surface_t *)mask,
(cairo_image_surface_t *)image,
0, 0,
extents->width, extents->height,
0, 0,
TRUE);
cairo_surface_destroy (image);
if (unlikely (status))
goto error;
_cairo_pattern_init_for_surface (&pattern, mask);
cairo_matrix_init_translate (&pattern.base.matrix,
-extents->x+dst_x, -extents->y+dst_y);
pattern.base.filter = CAIRO_FILTER_NEAREST;
pattern.base.extend = CAIRO_EXTEND_NONE;
status = _cairo_gl_operand_init (operand, &pattern.base, _dst,
&_cairo_unbounded_rectangle,
&_cairo_unbounded_rectangle,
FALSE);
_cairo_pattern_fini (&pattern.base);
if (unlikely (status))
goto error;
operand->texture.owns_surface = (cairo_gl_surface_t *)mask;
return CAIRO_STATUS_SUCCESS;
error:
cairo_surface_destroy (mask);
return status;
}
