X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=bootcensus;a=blobdiff_plain;f=src%2Fcensus%2Fpolyfill.h;fp=src%2Fcensus%2Fpolyfill.h;h=0a88098068713bbf1439db98f0a9e68dbb275b2e;hp=0000000000000000000000000000000000000000;hb=10843571c724084c68d33d0438167d400cc8de2e;hpb=f9194c22d8073b69b3e64fc26b9e245b6b54d009

diff --git a/src/census/polyfill.h b/src/census/polyfill.h
new file mode 100644
index 0000000..0a88098
--- /dev/null
+++ b/src/census/polyfill.h
@@ -0,0 +1,61 @@
+#ifndef POLYFILL_H_
+#define POLYFILL_H_
+
+#include "inttypes.h"
+
+#define POLYFILL_MODE_MASK	0x03
+#define POLYFILL_TEX_BIT	0x04
+#define POLYFILL_BLEND_BIT	0x08
+
+enum {
+	POLYFILL_WIRE			= 0,
+	POLYFILL_FLAT,
+	POLYFILL_GOURAUD,
+
+	POLYFILL_TEX_WIRE		= 4,
+	POLYFILL_TEX_FLAT,
+	POLYFILL_TEX_GOURAUD,
+
+	POLYFILL_BLEND_WIRE		= 8,
+	POLYFILL_BLEND_FLAT,
+	POLYFILL_BLEND_GOURAUD,
+
+	POLYFILL_BLEND_TEX_WIRE	= 12,
+	POLYFILL_BLEND_TEX_FLAT,
+	POLYFILL_BLEND_TEX_GOURAUD
+};
+
+/* projected vertices for the rasterizer */
+struct pvertex {
+	int32_t x, y; /* 24.8 fixed point */
+	int32_t u, v; /* 16.16 fixed point */
+	int32_t r, g, b, a;  /* int 0-255 */
+};
+
+struct pimage {
+	uint32_t *pixels;
+	int width, height;
+
+	int xshift, yshift;
+	unsigned int xmask, ymask;
+};
+
+extern struct pimage pfill_fb;
+extern struct pimage pfill_tex;
+
+void polyfill(int mode, struct pvertex *verts, int nverts);
+
+void polyfill_wire(struct pvertex *verts, int nverts);
+void polyfill_flat(struct pvertex *verts, int nverts);
+void polyfill_gouraud(struct pvertex *verts, int nverts);
+void polyfill_tex_wire(struct pvertex *verts, int nverts);
+void polyfill_tex_flat(struct pvertex *verts, int nverts);
+void polyfill_tex_gouraud(struct pvertex *verts, int nverts);
+void polyfill_blend_wire(struct pvertex *verts, int nverts);
+void polyfill_blend_flat(struct pvertex *verts, int nverts);
+void polyfill_blend_gouraud(struct pvertex *verts, int nverts);
+void polyfill_blend_tex_wire(struct pvertex *verts, int nverts);
+void polyfill_blend_tex_flat(struct pvertex *verts, int nverts);
+void polyfill_blend_tex_gouraud(struct pvertex *verts, int nverts);
+
+#endif	/* POLYFILL_H_ */