Exemplo n.º 1
0
static bool
_cairo_qt_fast_fill (cairo_qt_surface_t *qs,
		     const cairo_pattern_t *source,
		     const cairo_path_fixed_t *path = NULL,
		     cairo_fill_rule_t fill_rule = CAIRO_FILL_RULE_WINDING,
		     double tolerance = 0.0,
		     cairo_antialias_t antialias = CAIRO_ANTIALIAS_NONE)
{
#if ENABLE_FAST_FILL
    QImage *qsSrc_image = NULL;
    QPixmap *qsSrc_pixmap = NULL;
    std::auto_ptr<QImage> qsSrc_image_d;


    if (source->type == CAIRO_PATTERN_TYPE_SURFACE) {
	cairo_surface_pattern_t *spattern = (cairo_surface_pattern_t*) source;
	if (spattern->surface->type == CAIRO_SURFACE_TYPE_QT) {
	    cairo_qt_surface_t *p = (cairo_qt_surface_t*) spattern->surface;

	    qsSrc_image = p->image;
	    qsSrc_pixmap = p->pixmap;
	} else if (spattern->surface->type == CAIRO_SURFACE_TYPE_IMAGE) {
	    cairo_image_surface_t *p = (cairo_image_surface_t*) spattern->surface;
	    qsSrc_image = new QImage((const uchar*) p->data,
				     p->width,
				     p->height,
				     p->stride,
				     _qimage_format_from_cairo_format(p->format));
	    qsSrc_image_d.reset(qsSrc_image);
	}
    }

    if (!qsSrc_image && !qsSrc_pixmap)
	return false;

    // We can only drawTiledPixmap; there's no drawTiledImage
    if (! qsSrc_pixmap &&
	(source->extend == CAIRO_EXTEND_REPEAT ||
	 source->extend == CAIRO_EXTEND_REFLECT))
    {
	return false;
    }

    QMatrix sourceMatrix = _qmatrix_from_cairo_matrix (source->matrix);

    // We can draw this faster by clipping and calling drawImage/drawPixmap.
    // Use our own clipping function so that we can get the
    // region handling to end up with the fastest possible clip.
    //
    // XXX Antialiasing will fail pretty hard here, since we can't clip with AA
    // with QPainter.
    qs->p->save();

    if (path) {
	cairo_int_status_t status;

	cairo_clip_t clip, old_clip = qs->clipper.clip;

	_cairo_clip_init_copy (&clip, &qs->clipper.clip);
	status = (cairo_int_status_t) _cairo_clip_clip (&clip,
							path,
							fill_rule,
							tolerance,
							antialias);
	if (unlikely (status)) {
	    qs->p->restore();
	    return false;
	}

	status = _cairo_qt_surface_set_clip (qs, &clip);
	if (unlikely (status)) {
	    qs->p->restore();
	    return false;
	}

	_cairo_clip_reset (&clip);
	qs->clipper.clip = old_clip;
    }

    qs->p->setWorldMatrix (sourceMatrix.inverted(), true);

    switch (source->extend) {
    case CAIRO_EXTEND_REPEAT:
    // XXX handle reflect by tiling 4 times first
    case CAIRO_EXTEND_REFLECT: {
            assert (qsSrc_pixmap);

            // Render the tiling to cover the entire destination window (because
            // it'll be clipped).  Transform the window rect by the inverse
            // of the current world transform so that the device coordinates
            // end up as the right thing.
            QRectF dest = qs->p->worldTransform().inverted().mapRect(QRectF(qs->window));
            QPointF origin = sourceMatrix.map(QPointF(0.0, 0.0));

            qs->p->drawTiledPixmap (dest, *qsSrc_pixmap, origin);
        }
        break;
    case CAIRO_EXTEND_NONE:
    case CAIRO_EXTEND_PAD: // XXX not exactly right, but good enough
    default:
        if (qsSrc_image)
            qs->p->drawImage (0, 0, *qsSrc_image);
        else if (qsSrc_pixmap)
            qs->p->drawPixmap (0, 0, *qsSrc_pixmap);
        break;
    }

    qs->p->restore();

    return true;
#else
    return false;
#endif
}
Exemplo n.º 2
0
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_int_status_t
_cairo_meta_surface_replay (cairo_surface_t *surface,
			    cairo_surface_t *target)
{
    cairo_meta_surface_t *meta;
    cairo_command_t *command, **elements;
    int i, num_elements;
    cairo_int_status_t status;
    cairo_traps_t traps;
    cairo_clip_t clip;

    meta = (cairo_meta_surface_t *) surface;
    status = CAIRO_STATUS_SUCCESS;

    _cairo_clip_init (&clip, target);    

    num_elements = meta->commands.num_elements;
    elements = (cairo_command_t **) meta->commands.elements;
    for (i = 0; i < num_elements; i++) {
	command = elements[i];
	switch (command->type) {
	case CAIRO_COMMAND_COMPOSITE:
	    status = _cairo_surface_set_clip (target, &clip);
	    if (status)
		break;

	    status = _cairo_surface_composite
		(command->composite.operator,
		 &command->composite.src_pattern.base,
		 command->composite.mask_pattern_pointer,
		 target,
		 command->composite.src_x,
		 command->composite.src_y,
		 command->composite.mask_x,
		 command->composite.mask_y,
		 command->composite.dst_x,
		 command->composite.dst_y,
		 command->composite.width,
		 command->composite.height);
	    break;

	case CAIRO_COMMAND_FILL_RECTANGLES:
	    status = _cairo_surface_set_clip (target, &clip);
	    if (status)
		break;

	    status = _cairo_surface_fill_rectangles
		(target,
		 command->fill_rectangles.operator,
		 &command->fill_rectangles.color,
		 command->fill_rectangles.rects,
		 command->fill_rectangles.num_rects);
	    break;

	case CAIRO_COMMAND_COMPOSITE_TRAPEZOIDS:
	    status = _cairo_surface_set_clip (target, &clip);
	    if (status)
		break;

	    status = _cairo_surface_composite_trapezoids
		(command->composite_trapezoids.operator,
		 &command->composite_trapezoids.pattern.base,
		 target,
		 command->composite_trapezoids.antialias,
		 command->composite_trapezoids.x_src,
		 command->composite_trapezoids.y_src,
		 command->composite_trapezoids.x_dst,
		 command->composite_trapezoids.y_dst,
		 command->composite_trapezoids.width,
		 command->composite_trapezoids.height,
		 command->composite_trapezoids.traps,
		 command->composite_trapezoids.num_traps);
	    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 (command->intersect_clip_path.path_pointer == NULL)
		status = _cairo_clip_reset (&clip);
	    else
		status = _cairo_clip_clip (&clip,
					   command->intersect_clip_path.path_pointer,
					   command->intersect_clip_path.fill_rule,
					   command->intersect_clip_path.tolerance,
					   command->intersect_clip_path.antialias,
					   target);
	    break;

	case CAIRO_COMMAND_SHOW_GLYPHS:
	    status = _cairo_surface_set_clip (target, &clip);
	    if (status)
		break;

	    status = _cairo_surface_show_glyphs
		(command->show_glyphs.scaled_font,
		 command->show_glyphs.operator,
		 &command->show_glyphs.pattern.base,
		 target,
		 command->show_glyphs.source_x,
		 command->show_glyphs.source_y,
		 command->show_glyphs.dest_x,
		 command->show_glyphs.dest_y,
		 command->show_glyphs.width,
		 command->show_glyphs.height,
		 command->show_glyphs.glyphs,
		 command->show_glyphs.num_glyphs);
	    if (status != CAIRO_INT_STATUS_UNSUPPORTED)
		break;
	    
	    status = (*command->show_glyphs.scaled_font->backend->
		      show_glyphs) (command->show_glyphs.scaled_font,
				    command->show_glyphs.operator,
				    &command->show_glyphs.pattern.base,
				    target,
				    command->show_glyphs.source_x,
				    command->show_glyphs.source_y,
				    command->show_glyphs.dest_x,
				    command->show_glyphs.dest_y,
				    command->show_glyphs.width,
				    command->show_glyphs.height,
				    command->show_glyphs.glyphs,
				    command->show_glyphs.num_glyphs);

	    break;

	case CAIRO_COMMAND_FILL_PATH:
	    status = _cairo_surface_set_clip (target, &clip);
	    if (status)
		break;

	    status = _cairo_surface_fill_path (command->fill_path.operator,
					       &command->fill_path.pattern.base,
					       target,
					       &command->fill_path.path,
					       command->fill_path.fill_rule,
					       command->fill_path.tolerance);
	    if (status != CAIRO_INT_STATUS_UNSUPPORTED)
		break;

	    _cairo_traps_init (&traps);

	    status = _cairo_path_fixed_fill_to_traps (&command->fill_path.path,
						      command->fill_path.fill_rule,
						      command->fill_path.tolerance,
						      &traps);
	    if (status) {
		_cairo_traps_fini (&traps);
		break;
	    }

	    status = _cairo_surface_clip_and_composite_trapezoids (&command->fill_path.pattern.base,
								   command->fill_path.operator,
								   target,
								   &traps,
								   &clip,
								   command->fill_path.antialias);

	    _cairo_traps_fini (&traps);
	    break;

	default:
	    ASSERT_NOT_REACHED;
	}

	if (status)
	    break;
    }

    _cairo_clip_fini (&clip);

    return status;
}