rename and shuffle -- part 2

1 files changed, 89 insertions, 0 deletions

diff --git a/fitz/res_colorspace.c b/fitz/res_colorspace.c
new file mode 100644
index 00000000..65909bfe
--- /dev/null
+++ b/fitz/res_colorspace.c
@@ -0,0 +1,89 @@
+#include <fitz.h>
+
+void
+fz_convertpixmap(fz_colorspace *srcs, fz_pixmap *src, fz_colorspace *dsts, fz_pixmap *dst)
+{
+	srcs->convpixmap(srcs, src, dsts, dst);
+}
+
+void
+fz_convertcolor(fz_colorspace *srcs, float *srcv, fz_colorspace *dsts, float *dstv)
+{
+	srcs->convcolor(srcs, srcv, dsts, dstv);
+}
+
+fz_colorspace *
+fz_keepcolorspace(fz_colorspace *cs)
+{
+	if (cs->refs < 0)
+		return cs;
+	cs->refs ++;
+	return cs;
+}
+
+void
+fz_dropcolorspace(fz_colorspace *cs)
+{
+	if (cs->refs < 0)
+		return;
+	if (--cs->refs == 0)
+	{
+		if (cs->drop)
+			cs->drop(cs);
+		fz_free(cs);
+	}
+}
+
+void
+fz_stdconvcolor(fz_colorspace *srcs, float *srcv, fz_colorspace *dsts, float *dstv)
+{
+	float xyz[3];
+	int i;
+
+	if (srcs != dsts)
+	{	
+		srcs->toxyz(srcs, srcv, xyz);
+		dsts->fromxyz(dsts, xyz, dstv);
+		for (i = 0; i < dsts->n; i++)
+			dstv[i] = CLAMP(dstv[i], 0.0, 1.0);
+	}
+	else
+	{
+		for (i = 0; i < srcs->n; i++)
+			dstv[i] = srcv[i];
+	}
+}
+
+void
+fz_stdconvpixmap(fz_colorspace *srcs, fz_pixmap *src, fz_colorspace *dsts, fz_pixmap *dst)
+{
+	float srcv[FZ_MAXCOLORS];
+	float dstv[FZ_MAXCOLORS];
+	int y, x, k;
+
+	unsigned char *s = src->samples;
+	unsigned char *d = dst->samples;
+
+	printf("convert pixmap from %s to %s\n", srcs->name, dsts->name);
+
+	assert(src->w == dst->w && src->h == dst->h);
+	assert(src->n == srcs->n + 1);
+	assert(dst->n == dsts->n + 1);
+
+	for (y = 0; y < src->h; y++)
+	{
+		for (x = 0; x < src->w; x++)
+		{
+			*d++ = *s++;
+
+			for (k = 0; k < src->n - 1; k++)
+				srcv[k] = *s++ / 255.0;
+
+			fz_convertcolor(srcs, srcv, dsts, dstv);
+
+			for (k = 0; k < dst->n - 1; k++)
+				*d++ = dstv[k] * 255;
+		}
+	}
+}
+