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ghostscript/ghostscript-icc-fix.patch
Tim Waugh 246996011c Applied upstream ICC fix (bug #655449).
2011-01-07 13:11:15 +00:00

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diff -up ghostscript-9.00/base/gdevnfwd.c.icc-fix ghostscript-9.00/base/gdevnfwd.c
--- ghostscript-9.00/base/gdevnfwd.c.icc-fix 2010-08-10 17:20:19.000000000 +0100
+++ ghostscript-9.00/base/gdevnfwd.c 2011-01-07 12:11:25.625149646 +0000
@@ -1117,3 +1117,29 @@ null_strip_copy_rop(gx_device * dev, con
{
return 0;
}
+
+bool
+fwd_uses_fwd_cmap_procs(gx_device * dev)
+{
+ const gx_cm_color_map_procs *pprocs;
+
+ pprocs = dev_proc(dev, get_color_mapping_procs)(dev);
+ if (pprocs == &FwdDevice_cm_map_procs) {
+ return true;
+ }
+ return false;
+}
+
+const gx_cm_color_map_procs*
+fwd_get_target_cmap_procs(gx_device * dev)
+{
+ const gx_cm_color_map_procs *pprocs;
+ gx_device_forward * const fdev = (gx_device_forward *)dev;
+ gx_device * const tdev = fdev->target;
+
+ pprocs = dev_proc(tdev, get_color_mapping_procs(tdev));
+ while (pprocs == &FwdDevice_cm_map_procs) {
+ pprocs = fwd_get_target_cmap_procs(tdev);
+ }
+ return pprocs;
+}
\ No newline at end of file
diff -up ghostscript-9.00/base/gdevp14.c.icc-fix ghostscript-9.00/base/gdevp14.c
--- ghostscript-9.00/base/gdevp14.c.icc-fix 2010-09-09 00:20:36.000000000 +0100
+++ ghostscript-9.00/base/gdevp14.c 2011-01-07 12:11:25.629149217 +0000
@@ -878,7 +878,11 @@ pdf14_pop_transparency_group(gs_imager_s
nos->parent_color_info_procs->num_components, 1,
false, false, true, tos->planestride,
tos->rowstride, num_rows, num_cols);
- /* Transform the data */
+ /* Transform the data. Since the pdf14 device should be
+ using RGB, CMYK or Gray buffers, this transform
+ does not need to worry about the cmap procs of
+ the target device. Those are handled when we do
+ the pdf14 put image operation */
gscms_transform_color_buffer(icc_link, &input_buff_desc,
&output_buff_desc, tos->data,
new_data_buf);
diff -up ghostscript-9.00/base/gxcmap.c.icc-fix ghostscript-9.00/base/gxcmap.c
--- ghostscript-9.00/base/gxcmap.c.icc-fix 2010-08-10 17:20:19.000000000 +0100
+++ ghostscript-9.00/base/gxcmap.c 2011-01-07 12:11:25.637148361 +0000
@@ -31,6 +31,7 @@
#include "gsicc_manage.h"
#include "gdevdevn.h"
#include "gsicc_cache.h"
+#include "gscms.h"
/* Structure descriptor */
public_st_device_color();
@@ -1744,3 +1745,37 @@ cmap_transfer_halftone(gx_color_value *p
}
}
+
+bool
+gx_device_uses_std_cmap_procs(gx_device * dev)
+{
+ const gx_cm_color_map_procs *pprocs;
+
+ if (dev->device_icc_profile != NULL) {
+ pprocs = dev_proc(dev, get_color_mapping_procs)(dev);
+ /* Check if they are forwarding procs */
+ if (fwd_uses_fwd_cmap_procs(dev)) {
+ pprocs = fwd_get_target_cmap_procs(dev);
+ }
+ switch(dev->device_icc_profile->data_cs) {
+ case gsGRAY:
+ if (pprocs == &DeviceGray_procs) {
+ return true;
+ }
+ break;
+ case gsRGB:
+ if (pprocs == &DeviceRGB_procs) {
+ return true;
+ }
+ break;
+ case gsCMYK:
+ if (pprocs == &DeviceCMYK_procs) {
+ return true;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ return false;
+}
diff -up ghostscript-9.00/base/gxcmap.h.icc-fix ghostscript-9.00/base/gxcmap.h
--- ghostscript-9.00/base/gxcmap.h.icc-fix 2007-12-03 21:31:16.000000000 +0000
+++ ghostscript-9.00/base/gxcmap.h 2011-01-07 12:11:25.639148147 +0000
@@ -284,5 +284,11 @@ dev_proc_decode_color(gx_default_decode_
* [0,1]
*/
frac gx_unit_frac(float fvalue);
+/* Determine if the device is using the standard color mapping procs. In
+ such a case, we can make use of the faster icc color conversions for
+ images */
+bool gx_device_uses_std_cmap_procs(gx_device * dev);
+bool fwd_uses_fwd_cmap_procs(gx_device * dev);
+const gx_cm_color_map_procs* fwd_get_target_cmap_procs(gx_device * dev);
#endif /* gxcmap_INCLUDED */
diff -up ghostscript-9.00/base/gxi12bit.c.icc-fix ghostscript-9.00/base/gxi12bit.c
--- ghostscript-9.00/base/gxi12bit.c.icc-fix 2010-08-10 17:20:19.000000000 +0100
+++ ghostscript-9.00/base/gxi12bit.c 2011-01-07 12:11:25.640148040 +0000
@@ -113,6 +113,8 @@ static irender_proc(image_render_icc16);
irender_proc_t
gs_image_class_2_fracs(gx_image_enum * penum)
{
+ bool std_cmap_procs;
+
if (penum->bps > 8) {
if (penum->use_mask_color) {
/* Convert color mask values to fracs. */
@@ -122,9 +124,14 @@ gs_image_class_2_fracs(gx_image_enum * p
penum->mask_color.values[i] =
bits2frac(penum->mask_color.values[i], 12);
}
+ /* If the device has some unique color mapping procs due to its color space,
+ then we will need to use those and go through pixel by pixel instead
+ of blasting through buffers. This is true for example with many of
+ the color spaces for CUPs */
+ std_cmap_procs = gx_device_uses_std_cmap_procs(penum->dev);
if ( (gs_color_space_get_index(penum->pcs) == gs_color_space_index_DeviceN &&
penum->pcs->cmm_icc_profile_data == NULL) || penum->use_mask_color ||
- penum->bps != 16 ||
+ penum->bps != 16 || !std_cmap_procs ||
gs_color_space_get_index(penum->pcs) == gs_color_space_index_DevicePixel) {
/* DevicePixel color space used in mask from 3x type. Basically
a simple color space that just is scaled to the device bit
diff -up ghostscript-9.00/base/gxicolor.c.icc-fix ghostscript-9.00/base/gxicolor.c
--- ghostscript-9.00/base/gxicolor.c.icc-fix 2010-08-10 17:20:19.000000000 +0100
+++ ghostscript-9.00/base/gxicolor.c 2011-01-07 12:11:25.642147826 +0000
@@ -97,6 +97,8 @@ get_cie_range( const gs_color_space * pc
irender_proc_t
gs_image_class_4_color(gx_image_enum * penum)
{
+ bool std_cmap_procs;
+
if (penum->use_mask_color) {
/*
* Scale the mask colors to match the scaling of each sample to
@@ -128,8 +130,14 @@ gs_image_class_4_color(gx_image_enum * p
penum->mask_color.mask = 0;
penum->mask_color.test = ~0;
}
+ /* If the device has some unique color mapping procs due to its color space,
+ then we will need to use those and go through pixel by pixel instead
+ of blasting through buffers. This is true for example with many of
+ the color spaces for CUPs */
+ std_cmap_procs = gx_device_uses_std_cmap_procs(penum->dev);
if ( (gs_color_space_get_index(penum->pcs) == gs_color_space_index_DeviceN &&
- penum->pcs->cmm_icc_profile_data == NULL) || penum->use_mask_color ) {
+ penum->pcs->cmm_icc_profile_data == NULL) || penum->use_mask_color ||
+ !std_cmap_procs) {
return &image_render_color_DeviceN;
} else {
/* Set up the link now */
diff -up ghostscript-9.00/base/gxiscale.c.icc-fix ghostscript-9.00/base/gxiscale.c
--- ghostscript-9.00/base/gxiscale.c.icc-fix 2010-08-10 17:20:19.000000000 +0100
+++ ghostscript-9.00/base/gxiscale.c 2011-01-07 12:11:25.644147611 +0000
@@ -104,6 +104,13 @@ gs_image_class_0_interpolate(gx_image_en
!= penum->dev->color_info.num_components) {
use_icc = false;
}
+ /* If the device has some unique color mapping procs due to its color space,
+ then we will need to use those and go through pixel by pixel instead
+ of blasting through buffers. This is true for example with many of
+ the color spaces for CUPs */
+ if(!gx_device_uses_std_cmap_procs(penum->dev)) {
+ use_icc = false;
+ }
/*
* USE_CONSERVATIVE_INTERPOLATION_RULES is normally NOT defined since
* the MITCHELL digital filter seems OK as long as we are going out to
diff -up ghostscript-9.00/base/lib.mak.icc-fix ghostscript-9.00/base/lib.mak
--- ghostscript-9.00/base/lib.mak.icc-fix 2010-09-09 00:20:36.000000000 +0100
+++ ghostscript-9.00/base/lib.mak 2011-01-07 12:11:25.648147183 +0000
@@ -602,7 +602,7 @@ $(GLOBJ)gxcmap.$(OBJ) : $(GLSRC)gxcmap.c
$(gxalpha_h) $(gxcspace_h) $(gxfarith_h) $(gxfrac_h)\
$(gxdcconv_h) $(gxdevice_h) $(gxcmap_h) $(gsnamecl_h) $(gxlum_h)\
$(gzstate_h) $(gxdither_h) $(gxcdevn_h) $(string__h)\
- $(gsicc_manage_h) $(gdevdevn_h) $(gsicc_cache_h)
+ $(gsicc_manage_h) $(gdevdevn_h) $(gsicc_cache_h) $(gscms_h)
$(GLCC) $(GLO_)gxcmap.$(OBJ) $(C_) $(GLSRC)gxcmap.c
$(GLOBJ)gxcpath.$(OBJ) : $(GLSRC)gxcpath.c $(GXERR)\
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