Subversion Repositories orsoc_graphics_accelerator

/*

Bare metal OpenCores GFX IP driver for Wishbone bus.

Anton Fosselius, Per Lenander 2012

  */

#ifndef ORGFX_3D_H

#define ORGFX_3D_H

#include "orgfx.h"

typedef struct orgfx_face

{

        unsigned int p1, p2, p3;

    unsigned int uv1, uv2, uv3;

    unsigned int color1, color2, color3;

} orgfx_face;

typedef struct orgfx_matrix

{

  float aa, ab, ac, tx;

  float ba, bb, bc, ty;

  float ca, cb, cc, tz;

} orgfx_matrix;

orgfx_matrix orgfx3d_identity(void);

orgfx_matrix orgfx3d_rotateX(orgfx_matrix mat, float rad);

orgfx_matrix orgfx3d_rotateY(orgfx_matrix mat, float rad);

orgfx_matrix orgfx3d_rotateZ(orgfx_matrix mat, float rad);

orgfx_matrix orgfx3d_scale(orgfx_matrix mat, orgfx_point3 s);

orgfx_matrix orgfx3d_translate(orgfx_matrix mat, orgfx_point3 t);

inline void orgfx3d_set_matrix(orgfx_matrix mat);

typedef struct orgfx_mesh

{

    orgfx_point3 translation;

    orgfx_point3 rotation;

    orgfx_point3 scale;

        unsigned int numVerts;

    orgfx_point3 *verts;

    unsigned int numUvs;

    orgfx_point2 *uvs;

        unsigned int numFaces;

    orgfx_face *faces;

} orgfx_mesh;

orgfx_mesh orgfx3d_make_mesh(orgfx_face* faces,

                             unsigned int nFaces,

                             orgfx_point3* verts,

                             unsigned int nVerts,

                             orgfx_point2* uvs,

                             unsigned int nUvs);

// This function converts the texture coordinates in a mesh from texture space (0..1) into

// image coordinates (0..image_size).

// Warning! This function should only be called ONCE for each mesh, as it will

// modify the base mesh.

void orgfx3d_mesh_texture_size(orgfx_mesh* mesh,

                               unsigned int width,

                               unsigned int height);

void orgfx3d_draw_mesh(orgfx_mesh* mesh,

                       int filled, int textured);

#endif // orgfx_3D_H