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authorTor Andersson <tor@ghostscript.com>2011-02-08 08:37:25 +0000
committerTor Andersson <tor@ghostscript.com>2011-02-08 08:37:25 +0000
commit1b8a2963bd93117e72d2a5159e739a77e455c37f (patch)
tree8aa94c005529ad52c92d07cbefdc7fe3be76de51 /fitz
parent385b171b8bef464bbf652c81d85728ccb064ab86 (diff)
downloadmupdf-1b8a2963bd93117e72d2a5159e739a77e455c37f.tar.xz
Only interpolate upscaled images when the interpolate flag is set in the image dictionary.
Diffstat (limited to 'fitz')
-rw-r--r--fitz/dev_draw.c6
-rw-r--r--fitz/fitz.h1
-rw-r--r--fitz/res_colorspace.c4
-rw-r--r--fitz/res_pixmap.c1
4 files changed, 9 insertions, 3 deletions
diff --git a/fitz/dev_draw.c b/fitz/dev_draw.c
index 439c4115..4d3c94f2 100644
--- a/fitz/dev_draw.c
+++ b/fitz/dev_draw.c
@@ -601,7 +601,7 @@ fz_drawfillimage(void *user, fz_pixmap *image, fz_matrix ctm, float alpha)
#ifdef SMOOTHSCALE
dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b);
dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d);
- if (dx < image->w && dy < image->h)
+ if (dx < image->w || dy < image->h)
{
scaled = fz_smoothtransformpixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy);
if (scaled == nil)
@@ -649,7 +649,7 @@ fz_drawfillimagemask(void *user, fz_pixmap *image, fz_matrix ctm,
#ifdef SMOOTHSCALE
dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b);
dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d);
- if (dx < image->w && dy < image->h)
+ if (dx < image->w || dy < image->h)
{
scaled = fz_smoothtransformpixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy);
if (scaled == nil)
@@ -720,7 +720,7 @@ fz_drawclipimagemask(void *user, fz_pixmap *image, fz_matrix ctm)
#ifdef SMOOTHSCALE
dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b);
dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d);
- if (dx < image->w && dy < image->h)
+ if (dx < image->w || dy < image->h)
{
scaled = fz_smoothtransformpixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy);
if (scaled == nil)
diff --git a/fitz/fitz.h b/fitz/fitz.h
index 6a339303..685a75f3 100644
--- a/fitz/fitz.h
+++ b/fitz/fitz.h
@@ -611,6 +611,7 @@ struct fz_pixmap_s
int refs;
int x, y, w, h, n;
fz_pixmap *mask; /* explicit soft/image mask */
+ int interpolate;
fz_colorspace *colorspace;
unsigned char *samples;
int freesamples;
diff --git a/fitz/res_colorspace.c b/fitz/res_colorspace.c
index f3ea317d..09e6c349 100644
--- a/fitz/res_colorspace.c
+++ b/fitz/res_colorspace.c
@@ -497,6 +497,10 @@ fz_convertpixmap(fz_pixmap *sp, fz_pixmap *dp)
assert(ss && ds);
+ if (sp->mask)
+ dp->mask = fz_keeppixmap(sp->mask);
+ dp->interpolate = sp->interpolate;
+
if (ss == fz_devicegray)
{
if (ds == fz_devicergb) fastgraytorgb(sp, dp);
diff --git a/fitz/res_pixmap.c b/fitz/res_pixmap.c
index 88e10230..e70d084d 100644
--- a/fitz/res_pixmap.c
+++ b/fitz/res_pixmap.c
@@ -12,6 +12,7 @@ fz_newpixmapwithdata(fz_colorspace *colorspace, int x, int y, int w, int h, unsi
pix->w = w;
pix->h = h;
pix->mask = nil;
+ pix->interpolate = 1;
pix->colorspace = nil;
pix->n = 1;