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ghostscript/ghostscript-cups-rgbw.patch

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Applied upstream fix for gdevcups handling of RGBW (Ghostscript bug #691922).
2011-08-16 13:49:29 +00:00
diff -up ghostscript-9.04/cups/gdevcups.c.cups-rgbw ghostscript-9.04/cups/gdevcups.c
--- ghostscript-9.04/cups/gdevcups.c.cups-rgbw 2011-08-16 14:47:10.311813968 +0100
+++ ghostscript-9.04/cups/gdevcups.c 2011-08-16 14:48:02.291224871 +0100
@@ -225,6 +225,7 @@ typedef struct gx_device_cups_s
unsigned short EncodeLUT[gx_max_color_value + 1];/* RGB value to output color LUT */
int Density[CUPS_MAX_VALUE + 1];/* Density LUT */
int Matrix[3][3][CUPS_MAX_VALUE + 1];/* Color transform matrix LUT */
+ int user_icc;
int cupsRasterVersion;
/* Used by cups_put_params(): */
@@ -426,6 +427,7 @@ gx_device_cups gs_cups_device =
{0x00}, /* EncodeLUT */
{0x00}, /* Density */
{0x00}, /* Matrix */
+ 0,
3 /* cupsRasterVersion */
};
@@ -1183,15 +1185,18 @@ cups_map_cmyk(gx_device *pdev, /* I - D
case CUPS_CSPACE_RGB :
case CUPS_CSPACE_RGBW :
+ c0 = c + k;
+ c1 = m + k;
+ c2 = y + k;
if (cups->header.cupsColorSpace == CUPS_CSPACE_RGBW) {
- c0 = c;
- c1 = m;
- c2 = y;
- c3 = k;
- } else {
- c0 = c + k;
- c1 = m + k;
- c2 = y + k;
+ if ((k >= frac_1 - 1) ||
+ ((c0 >= frac_1) && (c1 >= frac_1) && (c2 >= frac_1))) {
+ c0 = frac_1;
+ c1 = frac_1;
+ c2 = frac_1;
+ c3 = frac_1;
+ } else
+ c3 = 0;
}
if (c0 < 0)
@@ -1213,11 +1218,12 @@ cups_map_cmyk(gx_device *pdev, /* I - D
out[2] = frac_1 - (frac)cups->Density[c2];
if (cups->header.cupsColorSpace == CUPS_CSPACE_RGBW) {
- if (c3 < 0)
- c3 = 0;
- else if (c3 > frac_1)
- c3 = frac_1;
- out[3] = frac_1 - (frac)cups->Density[c3];
+ if (c3 == 0)
+ out[3] = frac_1;
+ else if (c3 == frac_1)
+ out[3] = 0;
+ else
+ out[3] = frac_1;
}
break;
@@ -2035,10 +2041,15 @@ cups_map_color_rgb(gx_device *pdev,
* cups->DecodeLUT actually maps to RGBW, not CMYK...
*/
- k = cups->DecodeLUT[c3];
- c = cups->DecodeLUT[c0] + k - gx_max_color_value;
- m = cups->DecodeLUT[c1] + k - gx_max_color_value;
- y = cups->DecodeLUT[c2] + k - gx_max_color_value;
+ if (c3 == 0) {
+ c = 0;
+ m = 0;
+ y = 0;
+ } else {
+ c = cups->DecodeLUT[c0];
+ m = cups->DecodeLUT[c1];
+ y = cups->DecodeLUT[c2];
+ }
if (c > gx_max_color_value)
prgb[0] = gx_max_color_value;
@@ -2283,20 +2294,20 @@ cups_map_rgb_color(gx_device *pdev,
switch (cups->header.cupsBitsPerColor)
{
default :
- i = 0x0e;
+ i = 0x00;
break;
case 2 :
- i = 0xfc;
+ i = 0x00;
break;
case 4 :
- i = 0xfff0;
+ i = 0x0000;
break;
case 8 :
- i = 0xffffff00;
+ i = 0x00000000;
break;
#ifdef GX_COLOR_INDEX_TYPE
case 16 :
- i = 0xffffffffffff0000;
+ i = 0x0000000000000000;
break;
#endif /* GX_COLOR_INDEX_TYPE */
}
@@ -2930,6 +2941,7 @@ cups_put_params(gx_device *pdev, /*
int xflip = 0,
yflip = 0;
int found = 0;
+ gs_param_string icc_pro_dummy;
#ifdef DEBUG
dprintf2("DEBUG2: cups_put_params(%p, %p)\n", pdev, plist);
@@ -3025,6 +3037,11 @@ cups_put_params(gx_device *pdev, /*
margins_set = param_read_float_array(plist, "Margins", &arrayval) == 0;
color_set = param_read_int(plist, "cupsColorSpace", &intval) == 0 ||
param_read_int(plist, "cupsBitsPerColor", &intval) == 0;
+
+ if (!cups->user_icc) {
+ cups->user_icc = param_read_string(plist, "OutputICCProfile", &icc_pro_dummy) == 0;
+ }
+
/* We set the old dimensions to 1 if we have a color depth change, so
that memory reallocation gets forced. This is perhaps not the correct
approach to prevent crashes like in bug 690435. We keep it for the
@@ -4045,22 +4062,80 @@ cups_set_color_info(gx_device *pdev) /*
for (k = 0; k <= CUPS_MAX_VALUE; k ++)
cups->Density[k] = k;
}
- /* Set up the ICC profile for ghostscript to use based upon the color space.
- This is different than the PPD profile above which appears to be some sort
- of matrix based TRC profile */
- switch (cups->header.cupsColorSpace) {
- /* Use RGB profile for this */
- case CUPS_CSPACE_RGBW:
- if (pdev->icc_struct == NULL) {
- pdev->icc_struct = gsicc_new_device_profile_array(pdev->memory);
- }
- if (pdev->icc_struct->device_profile[gsDEFAULTPROFILE] == NULL) {
- code = gsicc_set_device_profile(pdev, pdev->memory,
- DEFAULT_RGB_ICC, gsDEFAULTPROFILE);
- }
- break;
- default:
- break;
+ if (!cups->user_icc) {
+ /* Set up the ICC profile for ghostscript to use based upon the color space.
+ This is different than the PPD profile above which appears to be some sort
+ of matrix based TRC profile */
+ switch (cups->header.cupsColorSpace)
+ {
+ default :
+ case CUPS_CSPACE_RGBW :
+ case CUPS_CSPACE_W :
+ case CUPS_CSPACE_WHITE :
+ case CUPS_CSPACE_RGB :
+ case CUPS_CSPACE_RGBA :
+# ifdef CUPS_RASTER_HAVE_COLORIMETRIC
+ case CUPS_CSPACE_CIEXYZ :
+ case CUPS_CSPACE_CIELab :
+ case CUPS_CSPACE_ICC1 :
+ case CUPS_CSPACE_ICC2 :
+ case CUPS_CSPACE_ICC3 :
+ case CUPS_CSPACE_ICC4 :
+ case CUPS_CSPACE_ICC5 :
+ case CUPS_CSPACE_ICC6 :
+ case CUPS_CSPACE_ICC7 :
+ case CUPS_CSPACE_ICC8 :
+ case CUPS_CSPACE_ICC9 :
+ case CUPS_CSPACE_ICCA :
+ case CUPS_CSPACE_ICCB :
+ case CUPS_CSPACE_ICCC :
+ case CUPS_CSPACE_ICCD :
+ case CUPS_CSPACE_ICCE :
+ case CUPS_CSPACE_ICCF :
+# endif /* CUPS_RASTER_HAVE_COLORIMETRIC */
+ if (pdev->icc_struct == NULL) {
+ pdev->icc_struct = gsicc_new_device_profile_array(pdev->memory);
+ }
+ if (pdev->icc_struct->device_profile[gsDEFAULTPROFILE]) {
+ rc_decrement(pdev->icc_struct->device_profile[gsDEFAULTPROFILE], "cups_set_color_info");
+ pdev->icc_struct->device_profile[gsDEFAULTPROFILE] = NULL;
+ }
+ code = gsicc_set_device_profile(pdev, pdev->memory,
+ (char *)DEFAULT_RGB_ICC, gsDEFAULTPROFILE);
+ break;
+
+ case CUPS_CSPACE_K :
+ if (pdev->icc_struct == NULL) {
+ pdev->icc_struct = gsicc_new_device_profile_array(pdev->memory);
+ }
+ if (pdev->icc_struct->device_profile[gsDEFAULTPROFILE]) {
+ rc_decrement(pdev->icc_struct->device_profile[gsDEFAULTPROFILE], "cups_set_color_info");
+ pdev->icc_struct->device_profile[gsDEFAULTPROFILE] = NULL;
+ }
+ code = gsicc_set_device_profile(pdev, pdev->memory,
+ (char *)DEFAULT_GRAY_ICC, gsDEFAULTPROFILE);
+ break;
+ case CUPS_CSPACE_GOLD :
+ case CUPS_CSPACE_SILVER :
+ case CUPS_CSPACE_CMY :
+ case CUPS_CSPACE_YMC :
+ case CUPS_CSPACE_KCMYcm :
+ case CUPS_CSPACE_CMYK :
+ case CUPS_CSPACE_YMCK :
+ case CUPS_CSPACE_KCMY :
+ case CUPS_CSPACE_GMCK :
+ case CUPS_CSPACE_GMCS :
+ if (pdev->icc_struct == NULL) {
+ pdev->icc_struct = gsicc_new_device_profile_array(pdev->memory);
+ }
+ if (pdev->icc_struct->device_profile[gsDEFAULTPROFILE]) {
+ rc_decrement(pdev->icc_struct->device_profile[gsDEFAULTPROFILE], "cups_set_color_info");
+ pdev->icc_struct->device_profile[gsDEFAULTPROFILE] = NULL;
+ }
+ code = gsicc_set_device_profile(pdev, pdev->memory,
+ (char *)DEFAULT_CMYK_ICC, gsDEFAULTPROFILE);
+ break;
+ }
}
}
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