void
_cairo_clip_translate (cairo_clip_t *clip,
cairo_fixed_t tx,
cairo_fixed_t ty)
{
if (clip->all_clipped)
return;
if (clip->has_region) {
_cairo_region_translate (&clip->region,
_cairo_fixed_integer_part (tx),
_cairo_fixed_integer_part (ty));
}
if (clip->surface) {
clip->surface_rect.x += _cairo_fixed_integer_part (tx);
clip->surface_rect.y += _cairo_fixed_integer_part (ty);
}
if (clip->path) {
cairo_clip_path_t *clip_path = clip->path;
cairo_matrix_t matrix;
cairo_matrix_init_translate (&matrix,
_cairo_fixed_to_double (tx),
_cairo_fixed_to_double (ty));
while (clip_path) {
_cairo_path_fixed_transform (&clip_path->path, &matrix);
clip_path = clip_path->prev;
}
}
}
cairo_status_t
_cairo_surface_wrapper_fill (cairo_surface_wrapper_t *wrapper,
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,
cairo_clip_t *clip)
{
cairo_status_t status;
cairo_matrix_t device_transform;
cairo_path_fixed_t path_copy, *dev_path = path;
cairo_clip_t clip_copy, *dev_clip = clip;
if (unlikely (wrapper->target->status))
return wrapper->target->status;
if (clip && clip->all_clipped)
return CAIRO_STATUS_SUCCESS;
if (_cairo_surface_wrapper_needs_device_transform (wrapper,
&device_transform))
{
status = _cairo_path_fixed_init_copy (&path_copy, dev_path);
if (unlikely (status))
goto FINISH;
_cairo_path_fixed_transform (&path_copy, &device_transform);
dev_path = &path_copy;
if (clip != NULL) {
status = _cairo_clip_init_copy_transformed (&clip_copy, clip,
&device_transform);
if (unlikely (status))
goto FINISH;
dev_clip = &clip_copy;
}
} else {
if (clip != NULL) {
dev_clip = &clip_copy;
_cairo_clip_init_copy (&clip_copy, clip);
}
}
status = _cairo_surface_fill (wrapper->target, op, source,
dev_path, fill_rule,
tolerance, antialias,
dev_clip);
FINISH:
if (dev_path != path)
_cairo_path_fixed_fini (dev_path);
if (dev_clip != clip)
_cairo_clip_reset (dev_clip);
return status;
}
cairo_status_t
_cairo_surface_wrapper_fill (cairo_surface_wrapper_t *wrapper,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias,
const cairo_clip_t *clip)
{
cairo_status_t status;
cairo_path_fixed_t path_copy, *dev_path = (cairo_path_fixed_t *) path;
cairo_pattern_union_t source_copy;
cairo_clip_t *dev_clip;
if (unlikely (wrapper->target->status))
return wrapper->target->status;
dev_clip = _cairo_surface_wrapper_get_clip (wrapper, clip);
if (_cairo_clip_is_all_clipped (dev_clip))
return CAIRO_INT_STATUS_NOTHING_TO_DO;
if (wrapper->needs_transform) {
cairo_matrix_t m;
_cairo_surface_wrapper_get_transform (wrapper, &m);
status = _cairo_path_fixed_init_copy (&path_copy, dev_path);
if (unlikely (status))
goto FINISH;
_cairo_path_fixed_transform (&path_copy, &m);
dev_path = &path_copy;
status = cairo_matrix_invert (&m);
assert (status == CAIRO_STATUS_SUCCESS);
_copy_transformed_pattern (&source_copy.base, source, &m);
source = &source_copy.base;
}
status = _cairo_surface_fill (wrapper->target, op, source,
dev_path, fill_rule,
tolerance, antialias,
dev_clip);
FINISH:
if (dev_path != path)
_cairo_path_fixed_fini (dev_path);
_cairo_clip_destroy (dev_clip);
return status;
}
static cairo_pattern_t *
_cairo_default_context_pop_group (void *abstract_cr)
{
cairo_default_context_t *cr = abstract_cr;
cairo_surface_t *group_surface;
cairo_pattern_t *group_pattern;
cairo_matrix_t group_matrix, device_transform_matrix;
cairo_status_t status;
/* Verify that we are at the right nesting level */
if (unlikely (! _cairo_gstate_is_group (cr->gstate)))
return _cairo_pattern_create_in_error (CAIRO_STATUS_INVALID_POP_GROUP);
/* Get a reference to the active surface before restoring */
group_surface = _cairo_gstate_get_target (cr->gstate);
group_surface = cairo_surface_reference (group_surface);
status = _cairo_gstate_restore (&cr->gstate, &cr->gstate_freelist);
assert (status == CAIRO_STATUS_SUCCESS);
group_pattern = cairo_pattern_create_for_surface (group_surface);
status = group_pattern->status;
if (unlikely (status))
goto done;
_cairo_gstate_get_matrix (cr->gstate, &group_matrix);
/* Transform by group_matrix centered around device_transform so that when
* we call _cairo_gstate_copy_transformed_pattern the result is a pattern
* with a matrix equivalent to the device_transform of group_surface. */
if (_cairo_surface_has_device_transform (group_surface)) {
cairo_pattern_set_matrix (group_pattern, &group_surface->device_transform);
_cairo_pattern_transform (group_pattern, &group_matrix);
_cairo_pattern_transform (group_pattern, &group_surface->device_transform_inverse);
} else {
cairo_pattern_set_matrix (group_pattern, &group_matrix);
}
/* If we have a current path, we need to adjust it to compensate for
* the device offset just removed. */
cairo_matrix_multiply (&device_transform_matrix,
&_cairo_gstate_get_target (cr->gstate)->device_transform,
&group_surface->device_transform_inverse);
_cairo_path_fixed_transform (cr->path, &device_transform_matrix);
done:
cairo_surface_destroy (group_surface);
return group_pattern;
}
static cairo_pattern_t *
_cairo_skia_context_pop_group (void *abstract_cr)
{
cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
cairo_surface_t *group_surface;
cairo_pattern_t *group_pattern;
cairo_status_t status;
group_surface = cairo_surface_reference (&cr->target->image.base);
status = _cairo_skia_context_restore (cr);
if (unlikely (status)) {
group_pattern = _cairo_pattern_create_in_error (status);
goto done;
}
group_pattern = cairo_pattern_create_for_surface (group_surface);
status = group_pattern->status;
if (unlikely (status))
goto done;
#if 0
_cairo_gstate_get_matrix (cr->gstate, &group_matrix);
/* Transform by group_matrix centered around device_transform so that when
* we call _cairo_gstate_copy_transformed_pattern the result is a pattern
* with a matrix equivalent to the device_transform of group_surface. */
if (_cairo_surface_has_device_transform (group_surface)) {
cairo_pattern_set_matrix (group_pattern, &group_surface->device_transform);
_cairo_pattern_transform (group_pattern, &group_matrix);
_cairo_pattern_transform (group_pattern, &group_surface->device_transform_inverse);
} else {
cairo_pattern_set_matrix (group_pattern, &group_matrix);
}
/* If we have a current path, we need to adjust it to compensate for
* the device offset just removed. */
_cairo_path_fixed_transform (cr->path,
&group_surface->device_transform_inverse);
#endif
done:
cairo_surface_destroy (group_surface);
return group_pattern;
}
static cairo_status_t
_cairo_clip_path_reapply_clip_path_transform (cairo_clip_t *clip,
cairo_clip_path_t *other_path,
const cairo_matrix_t *matrix)
{
cairo_status_t status;
cairo_clip_path_t *clip_path;
cairo_bool_t is_empty;
if (other_path->prev != NULL) {
status = _cairo_clip_path_reapply_clip_path_transform (clip,
other_path->prev,
matrix);
if (unlikely (status))
return status;
}
clip_path = _cairo_clip_path_create (clip);
if (unlikely (clip_path == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
status = _cairo_path_fixed_init_copy (&clip_path->path,
&other_path->path);
if (unlikely (status)) {
_cairo_clip_path_destroy (clip_path);
return status;
}
_cairo_path_fixed_transform (&clip_path->path, matrix);
_cairo_path_fixed_approximate_clip_extents (&clip_path->path,
&clip_path->extents);
if (clip_path->prev != NULL) {
is_empty = _cairo_rectangle_intersect (&clip_path->extents,
&clip_path->prev->extents);
}
clip_path->fill_rule = other_path->fill_rule;
clip_path->tolerance = other_path->tolerance;
clip_path->antialias = other_path->antialias;
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_cairo_skia_context_push_group (void *abstract_cr, cairo_content_t content)
{
cairo_skia_context_t *cr = (cairo_skia_context_t *) abstract_cr;
cairo_surface_t *group_surface;
cairo_status_t status;
int width, height;
//clip = _cairo_gstate_get_clip (cr->gstate);
width = cr->target->image.width;
height = cr->target->image.height;
group_surface = cr->target->image.base.backend->create_similar (&cr->target->image.base,
content, width, height);
#if 0
/* 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);
/* If we have a current path, we need to adjust it to compensate for
* the device offset just applied. */
_cairo_path_fixed_transform (cr->path,
&group_surface->device_transform);
#endif
status = _cairo_skia_context_save (cr);
if (unlikely (status)) {
cairo_surface_destroy (group_surface);
return status;
}
cairo_surface_destroy (&cr->target->image.base);
cr->target = (cairo_skia_surface_t *) group_surface;
return CAIRO_STATUS_SUCCESS;
}
cairo_status_t
_cairo_surface_wrapper_fill_stroke (cairo_surface_wrapper_t *wrapper,
cairo_operator_t fill_op,
const cairo_pattern_t *fill_source,
cairo_fill_rule_t fill_rule,
double fill_tolerance,
cairo_antialias_t fill_antialias,
cairo_path_fixed_t *path,
cairo_operator_t stroke_op,
const cairo_pattern_t *stroke_source,
cairo_stroke_style_t *stroke_style,
cairo_matrix_t *stroke_ctm,
cairo_matrix_t *stroke_ctm_inverse,
double stroke_tolerance,
cairo_antialias_t stroke_antialias,
cairo_clip_t *clip)
{
cairo_status_t status;
cairo_matrix_t device_transform;
cairo_path_fixed_t path_copy, *dev_path = path;
cairo_clip_t clip_copy, *dev_clip = clip;
cairo_matrix_t dev_ctm = *stroke_ctm;
cairo_matrix_t dev_ctm_inverse = *stroke_ctm_inverse;
if (unlikely (wrapper->target->status))
return wrapper->target->status;
if (clip && clip->all_clipped)
return CAIRO_STATUS_SUCCESS;
if (_cairo_surface_wrapper_needs_device_transform (wrapper,
&device_transform))
{
status = _cairo_path_fixed_init_copy (&path_copy, dev_path);
if (unlikely (status))
goto FINISH;
_cairo_path_fixed_transform (&path_copy, &device_transform);
dev_path = &path_copy;
if (clip != NULL) {
status = _cairo_clip_init_copy_transformed (&clip_copy, clip,
&device_transform);
if (unlikely (status))
goto FINISH;
dev_clip = &clip_copy;
}
cairo_matrix_multiply (&dev_ctm, &dev_ctm, &device_transform);
status = cairo_matrix_invert (&device_transform);
assert (status == CAIRO_STATUS_SUCCESS);
cairo_matrix_multiply (&dev_ctm_inverse,
&device_transform,
&dev_ctm_inverse);
} else {
if (clip != NULL) {
dev_clip = &clip_copy;
_cairo_clip_init_copy (&clip_copy, clip);
}
}
status = _cairo_surface_fill_stroke (wrapper->target,
fill_op, fill_source, fill_rule,
fill_tolerance, fill_antialias,
dev_path,
stroke_op, stroke_source,
stroke_style,
&dev_ctm, &dev_ctm_inverse,
stroke_tolerance, stroke_antialias,
dev_clip);
FINISH:
if (dev_path != path)
_cairo_path_fixed_fini (dev_path);
if (dev_clip != clip)
_cairo_clip_reset (dev_clip);
return status;
}
static cairo_status_t
_cairo_meta_surface_replay_internal (cairo_surface_t *surface,
cairo_surface_t *target,
cairo_meta_replay_type_t type,
cairo_meta_region_type_t region)
{
cairo_meta_surface_t *meta;
cairo_command_t *command, **elements;
int i, num_elements;
cairo_int_status_t status, status2;
cairo_clip_t clip, *old_clip;
cairo_bool_t has_device_transform = _cairo_surface_has_device_transform (target);
cairo_matrix_t *device_transform = &target->device_transform;
cairo_path_fixed_t path_copy, *dev_path;
if (surface->status)
return surface->status;
if (target->status)
return _cairo_surface_set_error (surface, target->status);
meta = (cairo_meta_surface_t *) surface;
status = CAIRO_STATUS_SUCCESS;
_cairo_clip_init (&clip, target);
old_clip = _cairo_surface_get_clip (target);
num_elements = meta->commands.num_elements;
elements = _cairo_array_index (&meta->commands, 0);
for (i = meta->replay_start_idx; i < num_elements; i++) {
command = elements[i];
if (type == CAIRO_META_REPLAY && region != CAIRO_META_REGION_ALL) {
if (command->header.region != region)
continue;
}
/* For all commands except intersect_clip_path, we have to
* ensure the current clip gets set on the surface. */
if (command->header.type != CAIRO_COMMAND_INTERSECT_CLIP_PATH) {
status = _cairo_surface_set_clip (target, &clip);
if (status)
break;
}
dev_path = _cairo_command_get_path (command);
if (dev_path && has_device_transform) {
status = _cairo_path_fixed_init_copy (&path_copy, dev_path);
if (status)
break;
_cairo_path_fixed_transform (&path_copy, device_transform);
dev_path = &path_copy;
}
switch (command->header.type) {
case CAIRO_COMMAND_PAINT:
status = _cairo_surface_paint (target,
command->paint.op,
&command->paint.source.base);
break;
case CAIRO_COMMAND_MASK:
status = _cairo_surface_mask (target,
command->mask.op,
&command->mask.source.base,
&command->mask.mask.base);
break;
case CAIRO_COMMAND_STROKE:
{
cairo_matrix_t dev_ctm = command->stroke.ctm;
cairo_matrix_t dev_ctm_inverse = command->stroke.ctm_inverse;
if (has_device_transform) {
cairo_matrix_multiply (&dev_ctm, &dev_ctm, device_transform);
cairo_matrix_multiply (&dev_ctm_inverse,
&target->device_transform_inverse,
&dev_ctm_inverse);
}
status = _cairo_surface_stroke (target,
command->stroke.op,
&command->stroke.source.base,
dev_path,
&command->stroke.style,
&dev_ctm,
&dev_ctm_inverse,
command->stroke.tolerance,
command->stroke.antialias);
break;
}
case CAIRO_COMMAND_FILL:
{
cairo_command_t *stroke_command;
if (type != CAIRO_META_CREATE_REGIONS)
stroke_command = (i < num_elements - 1) ? elements[i + 1] : NULL;
else
stroke_command = NULL;
if (stroke_command != NULL &&
type == CAIRO_META_REPLAY && region != CAIRO_META_REGION_ALL)
{
if (stroke_command->header.region != region)
stroke_command = NULL;
}
if (stroke_command != NULL &&
stroke_command->header.type == CAIRO_COMMAND_STROKE &&
_cairo_path_fixed_is_equal (dev_path, _cairo_command_get_path (stroke_command))) {
cairo_matrix_t dev_ctm;
cairo_matrix_t dev_ctm_inverse;
dev_ctm = stroke_command->stroke.ctm;
dev_ctm_inverse = stroke_command->stroke.ctm_inverse;
if (has_device_transform) {
cairo_matrix_multiply (&dev_ctm, &dev_ctm, device_transform);
cairo_matrix_multiply (&dev_ctm_inverse,
&surface->device_transform_inverse,
&dev_ctm_inverse);
}
status = _cairo_surface_fill_stroke (target,
command->fill.op,
&command->fill.source.base,
command->fill.fill_rule,
command->fill.tolerance,
command->fill.antialias,
dev_path,
stroke_command->stroke.op,
&stroke_command->stroke.source.base,
&stroke_command->stroke.style,
&dev_ctm,
&dev_ctm_inverse,
stroke_command->stroke.tolerance,
stroke_command->stroke.antialias);
i++;
} else
status = _cairo_surface_fill (target,
command->fill.op,
&command->fill.source.base,
dev_path,
command->fill.fill_rule,
command->fill.tolerance,
command->fill.antialias);
break;
}
case CAIRO_COMMAND_SHOW_TEXT_GLYPHS:
{
cairo_glyph_t *glyphs = command->show_text_glyphs.glyphs;
cairo_glyph_t *dev_glyphs;
int i, num_glyphs = command->show_text_glyphs.num_glyphs;
/* show_text_glyphs is special because _cairo_surface_show_text_glyphs is allowed
* to modify the glyph array that's passed in. We must always
* copy the array before handing it to the backend.
*/
dev_glyphs = _cairo_malloc_ab (num_glyphs, sizeof (cairo_glyph_t));
if (dev_glyphs == NULL) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
break;
}
if (has_device_transform) {
for (i = 0; i < num_glyphs; i++) {
dev_glyphs[i] = glyphs[i];
cairo_matrix_transform_point (device_transform,
&dev_glyphs[i].x,
&dev_glyphs[i].y);
}
} else {
memcpy (dev_glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs);
}
status = _cairo_surface_show_text_glyphs (target,
command->show_text_glyphs.op,
&command->show_text_glyphs.source.base,
command->show_text_glyphs.utf8, command->show_text_glyphs.utf8_len,
dev_glyphs, num_glyphs,
command->show_text_glyphs.clusters, command->show_text_glyphs.num_clusters,
command->show_text_glyphs.cluster_flags,
command->show_text_glyphs.scaled_font);
free (dev_glyphs);
break;
}
case CAIRO_COMMAND_INTERSECT_CLIP_PATH:
/* XXX Meta surface clipping is broken and requires some
* cairo-gstate.c rewriting. Work around it for now. */
if (dev_path == NULL)
_cairo_clip_reset (&clip);
else
status = _cairo_clip_clip (&clip, dev_path,
command->intersect_clip_path.fill_rule,
command->intersect_clip_path.tolerance,
command->intersect_clip_path.antialias,
target);
break;
default:
ASSERT_NOT_REACHED;
}
if (dev_path == &path_copy)
_cairo_path_fixed_fini (&path_copy);
if (type == CAIRO_META_CREATE_REGIONS) {
if (status == CAIRO_STATUS_SUCCESS) {
command->header.region = CAIRO_META_REGION_NATIVE;
} else if (status == CAIRO_INT_STATUS_IMAGE_FALLBACK) {
command->header.region = CAIRO_META_REGION_IMAGE_FALLBACK;
status = CAIRO_STATUS_SUCCESS;
}
}
if (status)
break;
}
_cairo_clip_reset (&clip);
status2 = _cairo_surface_set_clip (target, old_clip);
if (status == CAIRO_STATUS_SUCCESS)
status = status2;
return _cairo_surface_set_error (surface, status);
}
cairo_status_t
_cairo_surface_wrapper_fill (cairo_surface_wrapper_t *wrapper,
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,
cairo_clip_t *clip)
{
cairo_status_t status;
cairo_path_fixed_t path_copy, *dev_path = path;
cairo_clip_t clip_copy, *dev_clip = clip;
cairo_pattern_union_t source_copy;
cairo_clip_t target_clip;
if (unlikely (wrapper->target->status))
return wrapper->target->status;
if (wrapper->has_extents) {
_cairo_clip_init_copy (&target_clip, clip);
status = _cairo_clip_rectangle (&target_clip, &wrapper->extents);
if (unlikely (status))
goto FINISH;
dev_clip = clip = &target_clip;
}
if (clip && clip->all_clipped) {
status = CAIRO_STATUS_SUCCESS;
goto FINISH;
}
if (_cairo_surface_wrapper_needs_device_transform (wrapper) ||
_cairo_surface_wrapper_needs_extents_transform (wrapper))
{
cairo_matrix_t m;
cairo_matrix_init_identity (&m);
if (_cairo_surface_wrapper_needs_extents_transform (wrapper))
cairo_matrix_translate (&m, -wrapper->extents.x, -wrapper->extents.y);
if (_cairo_surface_wrapper_needs_device_transform (wrapper))
cairo_matrix_multiply (&m, &wrapper->target->device_transform, &m);
status = _cairo_path_fixed_init_copy (&path_copy, dev_path);
if (unlikely (status))
goto FINISH;
_cairo_path_fixed_transform (&path_copy, &m);
dev_path = &path_copy;
if (clip != NULL) {
status = _cairo_clip_init_copy_transformed (&clip_copy, clip, &m);
if (unlikely (status))
goto FINISH;
dev_clip = &clip_copy;
}
status = cairo_matrix_invert (&m);
assert (status == CAIRO_STATUS_SUCCESS);
_copy_transformed_pattern (&source_copy.base, source, &m);
source = &source_copy.base;
}
else
{
if (clip != NULL) {
dev_clip = &clip_copy;
_cairo_clip_init_copy (&clip_copy, clip);
}
}
status = _cairo_surface_fill (wrapper->target, op, source,
dev_path, fill_rule,
tolerance, antialias,
dev_clip);
FINISH:
if (dev_path != path)
_cairo_path_fixed_fini (dev_path);
if (wrapper->has_extents)
_cairo_clip_reset (&target_clip);
if (dev_clip != clip)
_cairo_clip_reset (dev_clip);
return status;
}
