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; }