Split fitz.h into subheaders.

1 files changed, 104 insertions, 0 deletions

diff --git a/include/mupdf/fitz/shade.h b/include/mupdf/fitz/shade.h
new file mode 100644
index 00000000..c1c42b4c
--- /dev/null
+++ b/include/mupdf/fitz/shade.h
@@ -0,0 +1,104 @@
+#ifndef MUPDF_FITZ_SHADE_H
+#define MUPDF_FITZ_SHADE_H
+
+/*
+ * The shading code uses gouraud shaded triangle meshes.
+ */
+
+enum
+{
+	FZ_FUNCTION_BASED = 1,
+	FZ_LINEAR = 2,
+	FZ_RADIAL = 3,
+	FZ_MESH_TYPE4 = 4,
+	FZ_MESH_TYPE5 = 5,
+	FZ_MESH_TYPE6 = 6,
+	FZ_MESH_TYPE7 = 7
+};
+
+typedef struct fz_shade_s fz_shade;
+
+struct fz_shade_s
+{
+	fz_storable storable;
+
+	fz_rect bbox;		/* can be fz_infinite_rect */
+	fz_colorspace *colorspace;
+
+	fz_matrix matrix;	/* matrix from pattern dict */
+	int use_background;	/* background color for fills but not 'sh' */
+	float background[FZ_MAX_COLORS];
+
+	int use_function;
+	float function[256][FZ_MAX_COLORS + 1];
+
+	int type; /* function, linear, radial, mesh */
+	union
+	{
+		struct
+		{
+			int extend[2];
+			float coords[2][3]; /* (x,y,r) twice */
+		} l_or_r;
+		struct
+		{
+			int vprow;
+			int bpflag;
+			int bpcoord;
+			int bpcomp;
+			float x0, x1;
+			float y0, y1;
+			float c0[FZ_MAX_COLORS];
+			float c1[FZ_MAX_COLORS];
+		} m;
+		struct
+		{
+			fz_matrix matrix;
+			int xdivs;
+			int ydivs;
+			float domain[2][2];
+			float *fn_vals;
+		} f;
+	} u;
+
+	fz_compressed_buffer *buffer;
+};
+
+fz_shade *fz_keep_shade(fz_context *ctx, fz_shade *shade);
+void fz_drop_shade(fz_context *ctx, fz_shade *shade);
+void fz_free_shade_imp(fz_context *ctx, fz_storable *shade);
+
+fz_rect *fz_bound_shade(fz_context *ctx, fz_shade *shade, const fz_matrix *ctm, fz_rect *r);
+void fz_paint_shade(fz_context *ctx, fz_shade *shade, const fz_matrix *ctm, fz_pixmap *dest, const fz_irect *bbox);
+
+/*
+ *	Handy routine for processing mesh based shades
+ */
+typedef struct fz_vertex_s fz_vertex;
+
+struct fz_vertex_s
+{
+	fz_point p;
+	float c[FZ_MAX_COLORS];
+};
+
+typedef struct fz_mesh_processor_s fz_mesh_processor;
+
+typedef void (fz_mesh_process_fn)(void *arg, fz_vertex *av, fz_vertex *bv, fz_vertex *cv);
+
+struct fz_mesh_processor_s {
+	fz_context *ctx;
+	fz_shade *shade;
+	fz_mesh_process_fn *process;
+	void *process_arg;
+	int ncomp;
+};
+
+void fz_process_mesh(fz_context *ctx, fz_shade *shade, const fz_matrix *ctm,
+			fz_mesh_process_fn *process, void *process_arg);
+
+#ifndef NDEBUG
+void fz_print_shade(fz_context *ctx, FILE *out, fz_shade *shade);
+#endif
+
+#endif