+ if(m) {
+ memcpy(m, st->mat[which][top], 16 * sizeof(float));
+ }
+ return st->mat[which][top];
+}
+
+void g3d_light_pos(int idx, float x, float y, float z)
+{
+ int mvtop = st->mtop[G3D_MODELVIEW];
+
+ st->lt[idx].x = x;
+ st->lt[idx].y = y;
+ st->lt[idx].z = z;
+
+ xform4_vec3(st->mat[G3D_MODELVIEW][mvtop], &st->lt[idx].x);
+}
+
+void g3d_light_color(int idx, float r, float g, float b)
+{
+ st->lt[idx].r = r;
+ st->lt[idx].g = g;
+ st->lt[idx].b = b;
+}
+
+void g3d_light_ambient(float r, float g, float b)
+{
+ st->ambient[0] = r;
+ st->ambient[1] = g;
+ st->ambient[2] = b;
+}
+
+void g3d_mtl_diffuse(float r, float g, float b)
+{
+ st->mtl.kd[0] = r;
+ st->mtl.kd[1] = g;
+ st->mtl.kd[2] = b;
+}
+
+void g3d_mtl_specular(float r, float g, float b)
+{
+ st->mtl.ks[0] = r;
+ st->mtl.ks[1] = g;
+ st->mtl.ks[2] = b;
+}
+
+void g3d_mtl_shininess(float shin)
+{
+ st->mtl.shin = shin;
+}
+
+static INLINE int calc_shift(unsigned int x)
+{
+ int res = -1;
+ while(x) {
+ x >>= 1;
+ ++res;
+ }
+ return res;
+}
+
+static INLINE int calc_mask(unsigned int x)
+{
+ return x - 1;
+}
+
+void g3d_set_texture(int xsz, int ysz, void *pixels)
+{
+ pfill_tex.pixels = pixels;
+ pfill_tex.width = xsz;
+ pfill_tex.height = ysz;
+
+ pfill_tex.xshift = calc_shift(xsz);
+ pfill_tex.yshift = calc_shift(ysz);
+ pfill_tex.xmask = calc_mask(xsz);
+ pfill_tex.ymask = calc_mask(ysz);
+}
+
+void g3d_draw(int prim, const struct g3d_vertex *varr, int varr_size)
+{
+ g3d_draw_indexed(prim, varr, varr_size, 0, 0);
+}
+
+void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
+ const int16_t *iarr, int iarr_size)
+{
+ int i, j, nfaces;
+ struct pvertex pv[16];
+ struct g3d_vertex v[16];
+ int vnum = prim; /* primitive vertex counts correspond to enum values */
+ int mvtop = st->mtop[G3D_MODELVIEW];
+ int ptop = st->mtop[G3D_PROJECTION];
+
+ /* calc the normal matrix */
+ memcpy(st->norm_mat, st->mat[G3D_MODELVIEW][mvtop], 16 * sizeof(float));
+ st->norm_mat[12] = st->norm_mat[13] = st->norm_mat[14] = 0.0f;
+
+ nfaces = (iarr ? iarr_size : varr_size) / vnum;
+
+ for(j=0; j<nfaces; j++) {
+ vnum = prim; /* reset vnum for each iteration */