Moved Fitz files into one directory.

1 files changed, 0 insertions, 969 deletions

diff --git a/raster/render.c b/raster/render.c
deleted file mode 100644
index 90ead6a7..00000000
--- a/raster/render.c
+++ /dev/null
@@ -1,969 +0,0 @@
-#include "fitz-base.h"
-#include "fitz-world.h"
-#include "fitz-draw.h"
-
-#ifdef _MSC_VER
-#define noDebug printf
-#ifndef DEBUG
-#define DEBUG
-#endif
-#else
-#define noDEBUG(args...) printf(args)
-#ifndef DEBUG
-#define DEBUG(args...)
-#endif
-#endif
-#define QUANT(x,a) (((int)((x) * (a))) / (a))
-#define HSUBPIX 5.0
-#define VSUBPIX 5.0
-
-#define FNONE 0
-#define FOVER 1
-#define FRGB 4
-
-static fz_error *rendernode(fz_renderer *gc, fz_node *node, fz_matrix ctm);
-
-fz_error *
-fz_newrenderer(fz_renderer **gcp, fz_colorspace *pcm, int maskonly, int gcmem)
-{
-	fz_error *error;
-	fz_renderer *gc;
-
-	gc = fz_malloc(sizeof(fz_renderer));
-	if (!gc)
-		return fz_outofmem;
-
-	gc->maskonly = maskonly;
-	gc->model = pcm;
-	gc->cache = nil;
-	gc->gel = nil;
-	gc->ael = nil;
-
-	error = fz_newglyphcache(&gc->cache, gcmem / 24, gcmem);
-	if (error)
-		goto cleanup;
-
-	error = fz_newgel(&gc->gel);
-	if (error)
-		goto cleanup;
-
-	error = fz_newael(&gc->ael);
-	if (error)
-		goto cleanup;
-
-	gc->dest = nil;
-	gc->over = nil;
-	gc->argb[0] = 255;
-	gc->argb[1] = 0;
-	gc->argb[2] = 0;
-	gc->argb[3] = 0;
-	gc->argb[4] = 0;
-	gc->argb[5] = 0;
-	gc->argb[6] = 0;
-	gc->flag = 0;
-
-	*gcp = gc;
-	return fz_okay;
-
-cleanup:
-	if (gc->model) fz_dropcolorspace(gc->model);
-	if (gc->cache) fz_dropglyphcache(gc->cache);
-	if (gc->gel) fz_dropgel(gc->gel);
-	if (gc->ael) fz_dropael(gc->ael);
-	fz_free(gc);
-	return error;
-}
-
-void
-fz_droprenderer(fz_renderer *gc)
-{
-	if (gc->dest) fz_droppixmap(gc->dest);
-	if (gc->over) fz_droppixmap(gc->over);
-
-	if (gc->model) fz_dropcolorspace(gc->model);
-	if (gc->cache) fz_dropglyphcache(gc->cache);
-	if (gc->gel) fz_dropgel(gc->gel);
-	if (gc->ael) fz_dropael(gc->ael);
-	fz_free(gc);
-}
-
-/*
- * Transform
- */
-
-static fz_error *
-rendertransform(fz_renderer *gc, fz_transformnode *transform, fz_matrix ctm)
-{
-	fz_error *error;
-DEBUG("transform [%g %g %g %g %g %g]\n",
-transform->m.a, transform->m.b,
-transform->m.c, transform->m.d,
-transform->m.e, transform->m.f);
-DEBUG("{\n");
-	ctm = fz_concat(transform->m, ctm);
-	error = rendernode(gc, transform->super.first, ctm);
-DEBUG("}\n");
-	return error;
-}
-
-/*
- * Color
- */
-
-static fz_error *
-rendersolid(fz_renderer *gc, fz_solidnode *solid, fz_matrix ctm)
-{
-	fz_error *error;
-	float rgb[3];
-	unsigned char a, r, g, b;
-	unsigned char *p;
-	int n;
-
-	if (gc->maskonly)
-		return fz_throw("assert: mask only renderer");
-	if (gc->model->n != 3)
-		return fz_throw("assert: non-rgb renderer");
-
-	fz_convertcolor(solid->cs, solid->samples, gc->model, rgb);
-	gc->argb[0] = solid->a * 255;
-	gc->argb[1] = rgb[0] * solid->a * 255;
-	gc->argb[2] = rgb[1] * solid->a * 255;
-	gc->argb[3] = rgb[2] * solid->a * 255;
-	gc->argb[4] = rgb[0] * 255;
-	gc->argb[5] = rgb[1] * 255;
-	gc->argb[6] = rgb[2] * 255;
-
-DEBUG("solid %s [%d %d %d %d];\n", solid->cs->name, gc->argb[0], gc->argb[1], gc->argb[2], gc->argb[3]);
-
-	if (gc->flag == FOVER)
-	{
-		p = gc->over->samples;
-		n = gc->over->w * gc->over->h;
-	}
-	else
-	{
-		error = fz_newpixmapwithrect(&gc->dest, gc->clip, 4);
-		if (error)
-			return error;
-		p = gc->dest->samples;
-		n = gc->dest->w * gc->dest->h;
-	}
-	
-	a = gc->argb[0];
-	r = gc->argb[1];
-	g = gc->argb[2];
-	b = gc->argb[3];
-	if (((unsigned)p & 3)) {
-	while (n--)
-	{
-		p[0] = a;
-		p[1] = r;
-		p[2] = g;
-		p[3] = b;
-		p += 4;
-	}
-	}
-	else
-	{
-		unsigned *pw = (unsigned *)p;
-#if BYTE_ORDER == LITTLE_ENDIAN
-		unsigned argb = a | (r << 8) | (g << 16) | (b << 24);
-#else
-		unsigned argb = (a << 24) | (r << 16) | (g << 8) | b;
-#endif
-		while (n--)
-		{
-			*pw++ = argb;
-		}
-	}
-
-	return fz_okay;
-}
-
-/*
- * Path
- */
-
-static fz_error *
-renderpath(fz_renderer *gc, fz_pathnode *path, fz_matrix ctm)
-{
-	fz_error *error;
-	float flatness;
-	fz_irect gbox;
-	fz_irect clip;
-	float expansion = fz_matrixexpansion(ctm);
-
-	flatness = 0.3 / expansion;
-	if (flatness < 0.1)
-		flatness = 0.1;
-
-	fz_resetgel(gc->gel, gc->clip);
-
-	if (path->paint == FZ_STROKE)
-	{
-		float lw = path->linewidth;
-		/* Check for hairline */
-		if (lw * expansion < 0.1) {
-			lw = 1.0f / expansion;
-		}
-		if (path->dash)
-			error = fz_dashpath(gc->gel, path, ctm, flatness, lw);
-		else
-			error = fz_strokepath(gc->gel, path, ctm, flatness, lw);
-	}
-	else
-		error = fz_fillpath(gc->gel, path, ctm, flatness);
-	if (error)
-		return error;
-
-	fz_sortgel(gc->gel);
-
-	gbox = fz_boundgel(gc->gel);
-	clip = fz_intersectirects(gc->clip, gbox);
-
-	if (fz_isemptyrect(clip))
-		return fz_okay;
-
-DEBUG("path %s;\n", path->paint == FZ_STROKE ? "stroke" : "fill");
-
-	if (gc->flag & FRGB)
-	{
-DEBUG(" path rgb %d %d %d %d, %d %d %d\n", gc->argb[0], gc->argb[1], gc->argb[2], gc->argb[3], gc->argb[4], gc->argb[5], gc->argb[6]);
-		return fz_scanconvert(gc->gel, gc->ael, path->paint == FZ_EOFILL,
-					clip, gc->over, gc->argb, 1);
-	}
-	else if (gc->flag & FOVER)
-	{
-		return fz_scanconvert(gc->gel, gc->ael, path->paint == FZ_EOFILL,
-					clip, gc->over, nil, 1);
-	}
-	else
-	{
-		error = fz_newpixmapwithrect(&gc->dest, clip, 1);
-		if (error)
-			return error;
-		fz_clearpixmap(gc->dest);
-		return fz_scanconvert(gc->gel, gc->ael, path->paint == FZ_EOFILL,
-					clip, gc->dest, nil, 0);
-	}
-}
-
-/*
- * Text
- */
-
-static void drawglyph(fz_renderer *gc, fz_pixmap *dst, fz_glyph *src, int xorig, int yorig)
-{
-	unsigned char *dp, *sp;
-	int w, h;
-
-	int dx0 = dst->x;
-	int dy0 = dst->y;
-	int dx1 = dst->x + dst->w;
-	int dy1 = dst->y + dst->h;
-
-	int x0 = xorig + src->x;
-	int y0 = yorig + src->y;
-	int x1 = x0 + src->w;
-	int y1 = y0 + src->h;
-
-	int sx0 = 0;
-	int sy0 = 0;
-	int sx1 = src->w;
-	int sy1 = src->h;
-
-	if (x1 <= dx0 || x0 >= dx1) return;
-	if (y1 <= dy0 || y0 >= dy1) return;
-	if (x0 < dx0) { sx0 += dx0 - x0; x0 = dx0; }
-	if (y0 < dy0) { sy0 += dy0 - y0; y0 = dy0; }
-	if (x1 > dx1) { sx1 += dx1 - x1; x1 = dx1; }
-	if (y1 > dy1) { sy1 += dy1 - y1; y1 = dy1; }
-
-	sp = src->samples + (sy0 * src->w + sx0);
-	dp = dst->samples + ((y0 - dst->y) * dst->w + (x0 - dst->x)) * dst->n;
-
-	w = sx1 - sx0;
-	h = sy1 - sy0;
-
-	switch (gc->flag)
-	{
-	case FNONE:
-		assert(dst->n == 1);
-		fz_text_1o1(sp, src->w, dp, dst->w, w, h);
-		break;
-
-	case FOVER:
-		assert(dst->n == 1);
-		fz_text_1o1(sp, src->w, dp, dst->w, w, h);
-		break;
-
-	case FOVER | FRGB:
-		assert(dst->n == 4);
-		fz_text_w4i1o4(gc->argb, sp, src->w, dp, dst->w * 4, w, h);
-		break;
-
-	default:
-		assert(!"impossible flag in text span function");
-	}
-}
-
-static fz_error *
-rendertext(fz_renderer *gc, fz_textnode *text, fz_matrix ctm)
-{
-	fz_error *error;
-	fz_irect tbox;
-	fz_irect clip;
-	fz_matrix tm, trm;
-	fz_glyph glyph;
-	int i, x, y, gid;
-
-	tbox = fz_roundrect(fz_boundnode((fz_node*)text, ctm));
-	clip = fz_intersectirects(gc->clip, tbox);
-
-DEBUG("text %s n=%d [%g %g %g %g];\n",
-text->font->name, text->len,
-text->trm.a, text->trm.b, text->trm.c, text->trm.d);
-
-	if (fz_isemptyrect(clip))
-		return fz_okay;
-
-	if (!(gc->flag & FOVER))
-	{
-		error = fz_newpixmapwithrect(&gc->dest, clip, 1);
-		if (error)
-			return error;
-		fz_clearpixmap(gc->dest);
-	}
-
-	tm = text->trm;
-
-	for (i = 0; i < text->len; i++)
-	{
-		gid = text->els[i].gid;
-		tm.e = text->els[i].x;
-		tm.f = text->els[i].y;
-		trm = fz_concat(tm, ctm);
-		x = fz_floor(trm.e);
-		y = fz_floor(trm.f);
-		trm.e = QUANT(trm.e - fz_floor(trm.e), HSUBPIX);
-		trm.f = QUANT(trm.f - fz_floor(trm.f), VSUBPIX);
-
-		error = fz_renderglyph(gc->cache, &glyph, text->font, gid, trm);
-		if (error)
-			return error;
-
-		if (!(gc->flag & FOVER))
-			drawglyph(gc, gc->dest, &glyph, x, y);
-		else
-			drawglyph(gc, gc->over, &glyph, x, y);
-	}
-
-	return fz_okay;
-}
-
-/*
- * Image
- */
-
-static inline void
-calcimagescale(fz_matrix ctm, int w, int h, int *odx, int *ody)
-{
-	float sx, sy;
-	int dx, dy;
-
-	sx = sqrt(ctm.a * ctm.a + ctm.b * ctm.b);
-	dx = 1;
-	while (((w+dx-1)/dx)/sx > 2.0 && (w+dx-1)/dx > 1)
-		dx++;
-
-	sy = sqrt(ctm.c * ctm.c + ctm.d * ctm.d);
-	dy = 1;
-	while (((h+dy-1)/dy)/sy > 2.0 && (h+dy-1)/dy > 1)
-		dy++;
-
-	*odx = dx;
-	*ody = dy;
-}
-
-static fz_error *
-renderimage(fz_renderer *gc, fz_imagenode *node, fz_matrix ctm)
-{
-	fz_error *error;
-	fz_image *image = node->image;
-	fz_irect bbox;
-	fz_irect clip;
-	int dx, dy;
-	fz_pixmap *tile;
-	fz_pixmap *temp;
-	fz_matrix imgmat;
-	fz_matrix invmat;
-	int fa, fb, fc, fd;
-	int u0, v0;
-	int x0, y0;
-	int w, h;
-	int tileheight;
-
-DEBUG("image %dx%d %d+%d %s\n{\n", image->w, image->h, image->n, image->a, image->cs?image->cs->name:"(nil)");
-
-	bbox = fz_roundrect(fz_boundnode((fz_node*)node, ctm));
-	clip = fz_intersectirects(gc->clip, bbox);
-
-	if (fz_isemptyrect(clip))
-		return fz_okay;
-        if (image->w == 0 || image->h == 0)
-                return fz_okay;
-
-	calcimagescale(ctm, image->w, image->h, &dx, &dy);
-
-	/* try to fit tile into a typical L2 cachce */
-	tileheight = 512 * 1024 / (image->w * (image->n + image->a));
-	/* tileheight must be an even multiple of dy, except for last band */
-	tileheight = (tileheight + dy - 1) / dy * dy;
-
-	if ((dx != 1 || dy != 1) && image->h > tileheight) {
-		int y = 0;
-
-		DEBUG("  load image tile size = %dx%d\n", image->w, tileheight);
-		error = fz_newpixmap(&tile, 0, 0, image->w,
-				     tileheight, image->n + 1);
-		if (error)
-			return error;
-
-		error = fz_newscaledpixmap(&temp, image->w, image->h, image->n + 1, dx, dy);
-		if (error)
-			goto cleanup;
-
-		do {
-			if (y + tileheight > image->h)
-				tileheight = image->h - y;
-			tile->y = y;
-			tile->h = tileheight;
-			DEBUG("  tile xywh=%d %d %d %d sxsy=1/%d 1/%d\n",
-			      0, y, image->w, tileheight, dx, dy);
-			error = image->loadtile(image, tile);
-			if (error)
-				goto cleanup1;
-
-			error = fz_scalepixmaptile(temp, 0, y, tile, dx, dy);
-			if (error)
-				goto cleanup1;
-
-			y += tileheight;
-		} while (y < image->h);
-
-		fz_droppixmap(tile);
-		tile = temp;
-	}
-	else {
-
-
-DEBUG("  load image\n");
-		error = fz_newpixmap(&tile, 0, 0, image->w, image->h, image->n + 1);
-		if (error)
-			return error;
-
-		error = image->loadtile(image, tile);
-		if (error)
-			goto cleanup;
-
-		if (dx != 1 || dy != 1)
-		{
-DEBUG("  scale image 1/%d 1/%d\n", dx, dy);
-			error = fz_scalepixmap(&temp, tile, dx, dy);
-			if (error)
-				goto cleanup;
-			fz_droppixmap(tile);
-			tile = temp;
-		}
-	}
-
-	if (image->cs && image->cs != gc->model)
-	{
-DEBUG("  convert from %s to %s\n", image->cs->name, gc->model->name);
-		error = fz_newpixmap(&temp, tile->x, tile->y, tile->w, tile->h, gc->model->n + 1);
-		if (error)
-			goto cleanup;
-		fz_convertpixmap(image->cs, tile, gc->model, temp);
-		fz_droppixmap(tile);
-		tile = temp;
-	}
-
-	imgmat.a = 1.0 / tile->w;
-	imgmat.b = 0.0;
-	imgmat.c = 0.0;
-	imgmat.d = -1.0 / tile->h;
-	imgmat.e = 0.0;
-	imgmat.f = 1.0;
-	invmat = fz_invertmatrix(fz_concat(imgmat, ctm));
-
-	w = clip.x1 - clip.x0;
-	h = clip.y1 - clip.y0;
-	x0 = clip.x0;
-	y0 = clip.y0;
-	u0 = (invmat.a * (x0+0.5) + invmat.c * (y0+0.5) + invmat.e) * 65536;
-	v0 = (invmat.b * (x0+0.5) + invmat.d * (y0+0.5) + invmat.f) * 65536;
-	fa = invmat.a * 65536;
-	fb = invmat.b * 65536;
-	fc = invmat.c * 65536;
-	fd = invmat.d * 65536;
-
-#define PSRC tile->samples, tile->w, tile->h
-#define PDST(p) p->samples + ((y0-p->y) * p->w + (x0-p->x)) * p->n, p->w * p->n
-#define PCTM u0, v0, fa, fb, fc, fd, w, h
-
-	switch (gc->flag)
-	{
-	case FNONE:
-		{
-DEBUG("  fnone %d x %d\n", w, h);
-			if (image->cs)
-				error = fz_newpixmapwithrect(&gc->dest, clip, gc->model->n + 1);
-			else
-				error = fz_newpixmapwithrect(&gc->dest, clip, 1);
-			if (error)
-				goto cleanup;
-
-			if (image->cs)
-				fz_img_4c4(PSRC, PDST(gc->dest), PCTM);
-			else
-				fz_img_1c1(PSRC, PDST(gc->dest), PCTM);
-		}
-		break;
-
-	case FOVER:
-		{
-DEBUG("  fover %d x %d\n", w, h);
-			if (image->cs)
-				fz_img_4o4(PSRC, PDST(gc->over), PCTM);
-			else
-				fz_img_1o1(PSRC, PDST(gc->over), PCTM);
-		}
-		break;
-
-	case FOVER | FRGB:
-DEBUG("  fover+rgb %d x %d\n", w, h);
-		fz_img_w4i1o4(gc->argb, PSRC, PDST(gc->over), PCTM);
-		break;
-
-	default:
-		assert(!"impossible flag in image span function");
-	}
-
-DEBUG("}\n");
-
-	fz_droppixmap(tile);
-	return fz_okay;
-
-cleanup1:
-	fz_droppixmap(temp);
-cleanup:
-	fz_droppixmap(tile);
-	return error;
-}
-
-/*
- * Shade
- */
-
-static fz_error *
-rendershade(fz_renderer *gc, fz_shadenode *node, fz_matrix ctm)
-{
-	fz_error *error;
-	fz_irect bbox;
-
-	assert(!gc->maskonly);
-
-	DEBUG("shade;\n");
-
-	bbox = fz_roundrect(fz_boundnode((fz_node*)node, ctm));
-	bbox = fz_intersectirects(gc->clip, bbox);
-
-	error = fz_newpixmapwithrect(&gc->dest, bbox, gc->model->n + 1);
-	if (error)
-		return error;
-
-	return fz_rendershade(node->shade, ctm, gc->model, gc->dest);
-}
-
-/*
- * Over, Mask and Blend
- */
-
-static void
-blendover(fz_renderer *gc, fz_pixmap *src, fz_pixmap *dst)
-{
-	unsigned char *sp, *dp;
-	fz_irect sr, dr;
-	int x, y, w, h;
-
-	sr.x0 = src->x;
-	sr.y0 = src->y;
-	sr.x1 = src->x + src->w;
-	sr.y1 = src->y + src->h;
-
-	dr.x0 = dst->x;
-	dr.y0 = dst->y;
-	dr.x1 = dst->x + dst->w;
-	dr.y1 = dst->y + dst->h;
-
-	dr = fz_intersectirects(sr, dr);
-	x = dr.x0;
-	y = dr.y0;
-	w = dr.x1 - dr.x0;
-	h = dr.y1 - dr.y0;
-
-	sp = src->samples + ((y - src->y) * src->w + (x - src->x)) * src->n;
-	dp = dst->samples + ((y - dst->y) * dst->w + (x - dst->x)) * dst->n;
-
-	if (src->n == 1 && dst->n == 1)
-		fz_duff_1o1(sp, src->w, dp, dst->w, w, h);
-	else if (src->n == 4 && dst->n == 4)
-		fz_duff_4o4(sp, src->w * 4, dp, dst->w * 4, w, h);
-	else if (src->n == dst->n)
-		fz_duff_non(sp, src->w * src->n, src->n, dp, dst->w * dst->n, w, h);
-	else
-		assert(!"blendover src and dst mismatch");
-}
-
-static void
-blendmask(fz_renderer *gc, fz_pixmap *src, fz_pixmap *msk, fz_pixmap *dst, int over)
-{
-	unsigned char *sp, *dp, *mp;
-	fz_irect sr, dr, mr;
-	int x, y, w, h;
-
-	sr.x0 = src->x;
-	sr.y0 = src->y;
-	sr.x1 = src->x + src->w;
-	sr.y1 = src->y + src->h;
-
-	dr.x0 = dst->x;
-	dr.y0 = dst->y;
-	dr.x1 = dst->x + dst->w;
-	dr.y1 = dst->y + dst->h;
-
-	mr.x0 = msk->x;
-	mr.y0 = msk->y;
-	mr.x1 = msk->x + msk->w;
-	mr.y1 = msk->y + msk->h;
-
-	dr = fz_intersectirects(sr, dr);
-	dr = fz_intersectirects(dr, mr);
-	x = dr.x0;
-	y = dr.y0;
-	w = dr.x1 - dr.x0;
-	h = dr.y1 - dr.y0;
-
-	sp = src->samples + ((y - src->y) * src->w + (x - src->x)) * src->n;
-	mp = msk->samples + ((y - msk->y) * msk->w + (x - msk->x)) * msk->n;
-	dp = dst->samples + ((y - dst->y) * dst->w + (x - dst->x)) * dst->n;
-
-	if (over)
-	{
-		if (src->n == 1 && msk->n == 1 && dst->n == 1)
-			fz_duff_1i1o1(sp, src->w, mp, msk->w, dp, dst->w, w, h);
-		else if (src->n == 4 && msk->n == 1 && dst->n == 4)
-			fz_duff_4i1o4(sp, src->w * 4, mp, msk->w, dp, dst->w * 4, w, h);
-		else if (src->n == dst->n)
-			fz_duff_nimon(sp, src->w * src->n, src->n, mp, msk->w * msk->n, msk->n, dp, dst->w * dst->n, w, h);
-		else
-			assert(!"blendmaskover src and msk and dst mismatch");
-	}
-	else
-	{
-		if (src->n == 1 && msk->n == 1 && dst->n == 1)
-			fz_duff_1i1c1(sp, src->w, mp, msk->w, dp, dst->w, w, h);
-		else if (src->n == 4 && msk->n == 1 && dst->n == 4)
-			fz_duff_4i1c4(sp, src->w * 4, mp, msk->w, dp, dst->w * 4, w, h);
-		else if (src->n == dst->n)
-			fz_duff_nimcn(sp, src->w * src->n, src->n, mp, msk->w * msk->n, msk->n, dp, dst->w * dst->n, w, h);
-		else
-			assert(!"blendmask src and msk and dst mismatch");
-	}
-}
-
-static fz_error *
-renderover(fz_renderer *gc, fz_overnode *over, fz_matrix ctm)
-{
-	fz_error *error;
-	fz_node *child;
-	int cluster = 0;
-
-	if (!gc->over)
-	{
-DEBUG("over cluster %d\n{\n", gc->maskonly ? 1 : 4);
-		cluster = 1;
-		if (gc->maskonly)
-			error = fz_newpixmapwithrect(&gc->over, gc->clip, 1);
-		else
-			error = fz_newpixmapwithrect(&gc->over, gc->clip, 4);
-		if (error)
-			return error;
-		fz_clearpixmap(gc->over);
-	}
-else DEBUG("over\n{\n");
-
-	for (child = over->super.first; child; child = child->next)
-	{
-		error = rendernode(gc, child, ctm);
-		if (error)
-			return error;
-		if (gc->dest)
-		{
-			blendover(gc, gc->dest, gc->over);
-			fz_droppixmap(gc->dest);
-			gc->dest = nil;
-		}
-	}
-
-	if (cluster)
-	{
-		gc->dest = gc->over;
-		gc->over = nil;
-	}
-
-DEBUG("}\n");
-
-	return fz_okay;
-}
-
-static fz_error *
-rendermask(fz_renderer *gc, fz_masknode *mask, fz_matrix ctm)
-{
-	fz_error *error;
-	int oldmaskonly;
-	fz_pixmap *oldover;
-	fz_irect oldclip;
-	fz_irect bbox;
-	fz_irect clip;
-	fz_pixmap *shapepix = nil;
-	fz_pixmap *colorpix = nil;
-	fz_node *shape;
-	fz_node *color;
-	float rgb[3];
-
-	shape = mask->super.first;
-	color = shape->next;
-
-	/* special case black voodo */
-	if (gc->flag & FOVER)
-	{
-		if (fz_issolidnode(color))
-		{
-			fz_solidnode *solid = (fz_solidnode*)color;
-
-			fz_convertcolor(solid->cs, solid->samples, gc->model, rgb);
-			gc->argb[0] = solid->a * 255;
-			gc->argb[1] = rgb[0] * solid->a * 255;
-			gc->argb[2] = rgb[1] * solid->a * 255;
-			gc->argb[3] = rgb[2] * solid->a * 255;
-			gc->argb[4] = rgb[0] * 255;
-			gc->argb[5] = rgb[1] * 255;
-			gc->argb[6] = rgb[2] * 255;
-			gc->flag |= FRGB;
-
-			/* we know these can handle the FRGB shortcut */
-			if (fz_ispathnode(shape))
-				return renderpath(gc, (fz_pathnode*)shape, ctm);
-			if (fz_istextnode(shape))
-				return rendertext(gc, (fz_textnode*)shape, ctm);
-			if (fz_isimagenode(shape))
-				return renderimage(gc, (fz_imagenode*)shape, ctm);
-		}
-	}
-
-	oldclip = gc->clip;
-	oldover = gc->over;
-
-	bbox = fz_roundrect(fz_boundnode(shape, ctm));
-	clip = fz_intersectirects(bbox, gc->clip);
-	bbox = fz_roundrect(fz_boundnode(color, ctm));
-	clip = fz_intersectirects(bbox, clip);
-
-	if (fz_isemptyrect(clip))
-		return fz_okay;
-
-DEBUG("mask [%d %d %d %d]\n{\n", clip.x0, clip.y0, clip.x1, clip.y1);
-
-{
-fz_irect sbox = fz_roundrect(fz_boundnode(shape, ctm));
-fz_irect cbox = fz_roundrect(fz_boundnode(color, ctm));
-if (cbox.x0 >= sbox.x0 && cbox.x1 <= sbox.x1)
-if (cbox.y0 >= sbox.y0 && cbox.y1 <= sbox.y1)
-DEBUG("potentially useless mask\n");
-}
-
-	gc->clip = clip;
-	gc->over = nil;
-
-	oldmaskonly = gc->maskonly;
-	gc->maskonly = 1;
-
-	error = rendernode(gc, shape, ctm);
-	if (error)
-		goto cleanup;
-	shapepix = gc->dest;
-	gc->dest = nil;
-
-	gc->maskonly = oldmaskonly;
-
-	error = rendernode(gc, color, ctm);
-	if (error)
-		goto cleanup;
-	colorpix = gc->dest;
-	gc->dest = nil;
-
-	gc->clip = oldclip;
-	gc->over = oldover;
-
-	if (shapepix && colorpix)
-	{
-		if (gc->over)
-		{
-			blendmask(gc, colorpix, shapepix, gc->over, 1);
-		}
-		else
-		{
-			clip.x0 = MAX(colorpix->x, shapepix->x);
-			clip.y0 = MAX(colorpix->y, shapepix->y);
-			clip.x1 = MIN(colorpix->x+colorpix->w, shapepix->x+shapepix->w);
-			clip.y1 = MIN(colorpix->y+colorpix->h, shapepix->y+shapepix->h);
-			error = fz_newpixmapwithrect(&gc->dest, clip, colorpix->n);
-			if (error)
-				goto cleanup;
-			blendmask(gc, colorpix, shapepix, gc->dest, 0);
-		}
-	}
-
-DEBUG("}\n");
-
-	if (shapepix) fz_droppixmap(shapepix);
-	if (colorpix) fz_droppixmap(colorpix);
-	return fz_okay;
-
-cleanup:
-	if (shapepix) fz_droppixmap(shapepix);
-	if (colorpix) fz_droppixmap(colorpix);
-	return error;
-}
-
-/*
- * Dispatch
- */
-
-static fz_error *
-rendernode(fz_renderer *gc, fz_node *node, fz_matrix ctm)
-{
-	if (!node)
-		return fz_okay;
-
-	gc->flag = FNONE;
-	if (gc->over)
-		gc->flag |= FOVER;
-
-	switch (node->kind)
-	{
-	case FZ_NOVER:
-		return renderover(gc, (fz_overnode*)node, ctm);
-	case FZ_NMASK:
-		return rendermask(gc, (fz_masknode*)node, ctm);
-	case FZ_NTRANSFORM:
-		return rendertransform(gc, (fz_transformnode*)node, ctm);
-	case FZ_NCOLOR:
-		return rendersolid(gc, (fz_solidnode*)node, ctm);
-	case FZ_NPATH:
-		return renderpath(gc, (fz_pathnode*)node, ctm);
-	case FZ_NTEXT:
-		return rendertext(gc, (fz_textnode*)node, ctm);
-	case FZ_NIMAGE:
-		return renderimage(gc, (fz_imagenode*)node, ctm);
-	case FZ_NSHADE:
-		return rendershade(gc, (fz_shadenode*)node, ctm);
-	case FZ_NLINK:
-		return rendernode(gc, ((fz_linknode*)node)->tree->root, ctm);
-	case FZ_NBLEND:
-		return fz_okay;
-	}
-
-	return fz_okay;
-}
-
-fz_error *
-fz_rendertree(fz_pixmap **outp,
-	fz_renderer *gc, fz_tree *tree, fz_matrix ctm,
-	fz_irect bbox, int white)
-{
-	fz_error *error;
-
-	gc->clip = bbox;
-	gc->over = nil;
-
-	if (gc->maskonly)
-		error = fz_newpixmapwithrect(&gc->over, bbox, 1);
-	else
-		error = fz_newpixmapwithrect(&gc->over, bbox, 4);
-	if (error)
-		return error;
-
-	if (white)
-		memset(gc->over->samples, 0xff, gc->over->w * gc->over->h * gc->over->n);
-	else
-		memset(gc->over->samples, 0x00, gc->over->w * gc->over->h * gc->over->n);
-
-DEBUG("tree %d [%d %d %d %d]\n{\n",
-gc->maskonly ? 1 : 4,
-bbox.x0, bbox.y0, bbox.x1, bbox.y1);
-
-	error = rendernode(gc, tree->root, ctm);
-	if (error)
-		return error;
-
-DEBUG("}\n");
-
-	if (gc->dest)
-	{
-		blendover(gc, gc->dest, gc->over);
-		fz_droppixmap(gc->dest);
-		gc->dest = nil;
-	}
-
-	*outp = gc->over;
-	gc->over = nil;
-
-	return fz_okay;
-}
-
-fz_error *
-fz_rendertreeover(fz_renderer *gc, fz_pixmap *dest, fz_tree *tree, fz_matrix ctm)
-{
-	fz_error *error;
-
-	assert(!gc->maskonly);
-	assert(dest->n == 4);
-
-	gc->clip.x0 = dest->x;
-	gc->clip.y0 = dest->y;
-	gc->clip.x1 = dest->x + dest->w;
-	gc->clip.y1 = dest->y + dest->h;
-
-	gc->over = dest;
-
-	error = rendernode(gc, tree->root, ctm);
-	if (error)
-	{
-		gc->over = nil;
-		return error;
-	}
-
-	if (gc->dest)
-	{
-		blendover(gc, gc->dest, gc->over);
-		fz_droppixmap(gc->dest);
-		gc->dest = nil;
-	}
-
-	gc->over = nil;
-
-	return fz_okay;
-}
-