Removed leaky optimizations.

2 files changed, 0 insertions, 237 deletions

diff --git a/fitz/fitz_tree.h b/fitz/fitz_tree.h
index b9d4e01a..68cfe6d7 100644
--- a/fitz/fitz_tree.h
+++ b/fitz/fitz_tree.h
@@ -31,8 +31,6 @@ void fz_insertnodelast(fz_node *parent, fz_node *child);
 void fz_insertnodeafter(fz_node *prev, fz_node *child);
 void fz_removenode(fz_node *child);
 
-fz_error fz_optimizetree(fz_tree *tree);
-
 /* node types */
 
 typedef struct fz_transformnode_s fz_transformnode;
diff --git a/fitz/node_optimize.c b/fitz/node_optimize.c
deleted file mode 100644
index 056fc782..00000000
--- a/fitz/node_optimize.c
+++ /dev/null
@@ -1,235 +0,0 @@
-#include "fitz_base.h"
-#include "fitz_tree.h"
-
-/*
- * Remove (mask ... white) until we get something not white
- */
-
-static int iswhitenode(fz_solidnode *node)
-{
-	if (!strcmp(node->cs->name, "DeviceGray"))
-		return fabs(node->samples[0] - 1.0) < FLT_EPSILON;
-	if (!strcmp(node->cs->name, "DeviceRGB"))
-		return fabs(node->samples[0] - 1.0) < FLT_EPSILON &&
-				fabs(node->samples[1] - 1.0) < FLT_EPSILON &&
-				fabs(node->samples[2] - 1.0) < FLT_EPSILON;
-	if (!strcmp(node->cs->name, "DeviceCMYK"))
-		return fabs(node->samples[0]) < FLT_EPSILON &&
-				fabs(node->samples[1]) < FLT_EPSILON &&
-				fabs(node->samples[2]) < FLT_EPSILON &&
-				fabs(node->samples[3]) < FLT_EPSILON;
-	return 0;
-}
-
-static int cleanwhite(fz_node *node)
-{
-	fz_node *current;
-	fz_node *next;
-	fz_node *shape;
-	fz_node *color;
-
-	for (current = node->first; current; current = next)
-	{
-		next = current->next;
-
-		if (fz_islinknode(current))
-			return 1;
-		else if (fz_isimagenode(current))
-			return 1;
-		else if (fz_isshadenode(current))
-			return 1;
-		else if (fz_issolidnode(current))
-		{
-			if (!iswhitenode((fz_solidnode*)current))
-				return 1;
-		}
-
-		else if (fz_ismasknode(current))
-		{
-			shape = current->first;
-			color = shape->next;
-			if (fz_issolidnode(color))
-			{
-				if (iswhitenode((fz_solidnode*)color))
-					fz_removenode(current);
-				else
-					return 1;
-			}
-			else
-			{
-				if (cleanwhite(current))
-					return 1;
-			}
-		}
-
-		else
-		{
-			if (cleanwhite(current))
-				return 1;
-		}
-	}
-
-	return 0;
-}
-
-/*
- * Remove useless overs that only have one child.
- */
-
-static void cleanovers(fz_node *node)
-{
-	fz_node *prev;
-	fz_node *next;
-	fz_node *current;
-	fz_node *child;
-
-	prev = nil;
-	for (current = node->first; current; current = next)
-	{
-		next = current->next;
-
-		if (fz_isovernode(current))
-		{
-			if (current->first == current->last)
-			{
-				child = current->first;
-				fz_removenode(current);
-				if (child)
-				{
-					if (prev)
-						fz_insertnodeafter(prev, child);
-					else
-						fz_insertnodefirst(node, child);
-				}
-				current = child;
-			}
-		}
-
-		if (current)
-			prev = current;
-	}
-
-	for (current = node->first; current; current = current->next)
-		cleanovers(current);
-}
-
-/*
- * Remove rectangular clip-masks whose contents fit...
- */
-
-static int getrect(fz_pathnode *path, fz_rect *bboxp)
-{
-	float x, y, w, h;
-
-	/* move x y, line x+w y, line x+w y+h, line x y+h, close */
-
-	if (path->len != 13)
-		return 0;
-
-	if (path->els[0].k != FZ_MOVETO) return 0;
-	x = path->els[1].v;
-	y = path->els[2].v;
-
-	if (path->els[3].k != FZ_LINETO) return 0;
-	w = path->els[4].v - x;
-	if (path->els[5].v != y) return 0;
-
-	if (path->els[6].k != FZ_LINETO) return 0;
-	if (path->els[7].v != x + w) return 0;
-	h = path->els[8].v - y;
-
-	if (path->els[9].k != FZ_LINETO) return 0;
-	if (path->els[10].v != x) return 0;
-	if (path->els[11].v != y + h) return 0;
-
-	if (path->els[12].k != FZ_CLOSEPATH) return 0;
-
-	bboxp->x0 = MIN(x, x + w);
-	bboxp->y0 = MIN(y, y + h);
-	bboxp->x1 = MAX(x, x + w);
-	bboxp->y1 = MAX(y, y + h);
-
-	return 1;
-}
-
-static int fitsinside(fz_node *node, fz_rect clip)
-{
-	fz_rect bbox;
-	bbox = fz_boundnode(node, fz_identity());
-	if (fz_isinfiniterect(bbox)) return 0;
-	if (fz_isemptyrect(bbox)) return 1;
-	if (bbox.x0 < clip.x0) return 0;
-	if (bbox.x1 > clip.x1) return 0;
-	if (bbox.y0 < clip.y0) return 0;
-	if (bbox.y1 > clip.y1) return 0;
-	return 1;
-}
-
-static void cleanmasks(fz_node *node)
-{
-	fz_node *prev;
-	fz_node *current;
-	fz_node *shape;
-	fz_node *color;
-	fz_rect bbox;
-
-	for (current = node->first; current; current = current->next)
-		cleanmasks(current);
-
-	prev = nil;
-	for (current = node->first; current; current = current->next)
-	{
-retry:
-		if (!current)
-			break;
-
-		if (fz_ismasknode(current))
-		{
-			shape = current->first;
-			color = shape->next;
-
-			if (color == nil)
-			{
-				fz_removenode(current);
-				prev = nil;
-				current = node->first;
-				goto retry;
-			}
-
-			if (fz_ispathnode(shape))
-			{
-				if (getrect((fz_pathnode*)shape, &bbox))
-				{
-					if (fitsinside(color, bbox))
-					{
-						fz_removenode(current);
-						if (prev)
-							fz_insertnodeafter(prev, color);
-						else
-							fz_insertnodefirst(node, color);
-						current = color;
-						goto retry;
-					}
-				}
-			}
-		}
-
-		prev = current;
-	}
-}
-
-/*
- *
- */
-
-fz_error
-fz_optimizetree(fz_tree *tree)
-{
-	if (getenv("DONTOPT"))
-		return fz_okay;
-	cleanwhite(tree->root);
-	cleanovers(tree->root);
-	cleanmasks(tree->root);
-	return fz_okay;
-}
-