Rearrange source files.

1 files changed, 48 insertions, 0 deletions

diff --git a/source/fitz/function.c b/source/fitz/function.c
new file mode 100644
index 00000000..b5ba4815
--- /dev/null
+++ b/source/fitz/function.c
@@ -0,0 +1,48 @@
+#include "mupdf/fitz.h"
+
+void
+fz_eval_function(fz_context *ctx, fz_function *func, float *in_, int inlen, float *out_, int outlen)
+{
+	float fakein[FZ_FN_MAXM];
+	float fakeout[FZ_FN_MAXN];
+	float *in = in_;
+	float *out = out_;
+
+	if (inlen < func->m)
+	{
+		in = fakein;
+		memset(in, 0, sizeof(float) * func->m);
+		memcpy(in, in_, sizeof(float) * inlen);
+	}
+
+	if (outlen < func->n)
+	{
+		out = fakeout;
+		memset(out, 0, sizeof(float) * func->n);
+	}
+	else
+		memset(out, 0, sizeof(float) * outlen);
+
+	func->evaluate(ctx, func, in, out);
+
+	if (outlen < func->n)
+		memcpy(out_, out, sizeof(float) * outlen);
+}
+
+fz_function *
+fz_keep_function(fz_context *ctx, fz_function *func)
+{
+	return (fz_function *)fz_keep_storable(ctx, &func->storable);
+}
+
+void
+fz_drop_function(fz_context *ctx, fz_function *func)
+{
+	fz_drop_storable(ctx, &func->storable);
+}
+
+unsigned int
+fz_function_size(fz_function *func)
+{
+	return (func ? func->size : 0);
+}