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authorRobin Watts <robin.watts@artifex.com>2016-01-12 17:30:59 +0000
committerRobin Watts <robin.watts@artifex.com>2016-01-13 12:32:58 +0000
commitad8936bf2bcf54c7042bdec20c49c96657649b34 (patch)
tree0d6e309f5747e493632b72b34acef1e53e1ed9d7 /source/pdf/pdf-colorspace.c
parent881b7ea89588677e709aaa7d3d0ffe4aed63822a (diff)
downloadmupdf-ad8936bf2bcf54c7042bdec20c49c96657649b34.tar.xz
Add lots of consts.
In general, we should use 'const fz_blah' in device calls whenever the callee should not alter the fz_blah. Push this through. This shows up various places where we fz_keep and fz_drop these const things. I've updated the fz_keep and fz_drops with appropriate casts to remove the consts. We may need to do the union dance to avoid the consts for some compilers, but will only do that if required. I think this is nicer overall, even allowing for the const<->no const problems.
Diffstat (limited to 'source/pdf/pdf-colorspace.c')
-rw-r--r--source/pdf/pdf-colorspace.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/source/pdf/pdf-colorspace.c b/source/pdf/pdf-colorspace.c
index 321b224b..b8c2e1cc 100644
--- a/source/pdf/pdf-colorspace.c
+++ b/source/pdf/pdf-colorspace.c
@@ -53,7 +53,7 @@ static inline float fung(float x)
}
static void
-lab_to_rgb(fz_context *ctx, fz_colorspace *cs, const float *lab, float *rgb)
+lab_to_rgb(fz_context *ctx, const fz_colorspace *cs, const float *lab, float *rgb)
{
/* input is in range (0..100, -128..127, -128..127) not (0..1, 0..1, 0..1) */
float lstar, astar, bstar, l, m, n, x, y, z, r, g, b;
@@ -75,7 +75,7 @@ lab_to_rgb(fz_context *ctx, fz_colorspace *cs, const float *lab, float *rgb)
}
static void
-rgb_to_lab(fz_context *ctx, fz_colorspace *cs, const float *rgb, float *lab)
+rgb_to_lab(fz_context *ctx, const fz_colorspace *cs, const float *rgb, float *lab)
{
fz_warn(ctx, "cannot convert into L*a*b colorspace");
lab[0] = rgb[0];
@@ -95,7 +95,7 @@ struct separation
};
static void
-separation_to_rgb(fz_context *ctx, fz_colorspace *cs, const float *color, float *rgb)
+separation_to_rgb(fz_context *ctx, const fz_colorspace *cs, const float *color, float *rgb)
{
struct separation *sep = cs->data;
float alt[FZ_MAX_COLORS];
@@ -104,7 +104,7 @@ separation_to_rgb(fz_context *ctx, fz_colorspace *cs, const float *color, float
}
static void
-free_separation(fz_context *ctx, fz_colorspace *cs)
+free_separation(fz_context *ctx, const fz_colorspace *cs)
{
struct separation *sep = cs->data;
fz_drop_colorspace(ctx, sep->base);
@@ -165,7 +165,7 @@ load_separation(fz_context *ctx, pdf_document *doc, pdf_obj *array)
}
int
-pdf_is_tint_colorspace(fz_context *ctx, fz_colorspace *cs)
+pdf_is_tint_colorspace(fz_context *ctx, const fz_colorspace *cs)
{
return cs && cs->to_rgb == separation_to_rgb;
}