+void g3d_begin(int prim)
+{
+ st->imm_prim = prim;
+ st->imm_pcount = prim;
+ st->imm_numv = 0;
+}
+
+void g3d_end(void)
+{
+ imm_flush();
+}
+
+static void imm_flush(void)
+{
+ int numv = st->imm_numv;
+ st->imm_numv = 0;
+ g3d_draw_indexed(st->imm_prim, st->imm_vbuf, numv, 0, 0);
+}
+
+void g3d_vertex(float x, float y, float z)
+{
+ struct g3d_vertex *vptr = st->imm_vbuf + st->imm_numv++;
+ *vptr = st->imm_curv;
+ vptr->x = x;
+ vptr->y = y;
+ vptr->z = z;
+ vptr->w = 1.0f;
+
+ if(!--st->imm_pcount) {
+ if(st->imm_numv >= IMM_VBUF_SIZE - st->imm_prim) {
+ imm_flush();
+ }
+ st->imm_pcount = st->imm_prim;
+ }
+}
+
+void g3d_normal(float x, float y, float z)
+{
+ st->imm_curv.nx = x;
+ st->imm_curv.ny = y;
+ st->imm_curv.nz = z;
+}
+
+void g3d_color3b(unsigned char r, unsigned char g, unsigned char b)
+{
+ st->imm_curv.r = r;
+ st->imm_curv.g = g;
+ st->imm_curv.b = b;
+ st->imm_curv.a = 255;
+}
+
+void g3d_color4b(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
+{
+ st->imm_curv.r = r;
+ st->imm_curv.g = g;
+ st->imm_curv.b = b;
+ st->imm_curv.a = a;
+}
+
+void g3d_color3f(float r, float g, float b)
+{
+ int ir = r * 255.0f;
+ int ig = g * 255.0f;
+ int ib = b * 255.0f;
+ st->imm_curv.r = ir > 255 ? 255 : ir;
+ st->imm_curv.g = ig > 255 ? 255 : ig;
+ st->imm_curv.b = ib > 255 ? 255 : ib;
+ st->imm_curv.a = 255;
+}
+
+void g3d_color4f(float r, float g, float b, float a)
+{
+ int ir = r * 255.0f;
+ int ig = g * 255.0f;
+ int ib = b * 255.0f;
+ int ia = a * 255.0f;
+ st->imm_curv.r = ir > 255 ? 255 : ir;
+ st->imm_curv.g = ig > 255 ? 255 : ig;
+ st->imm_curv.b = ib > 255 ? 255 : ib;
+ st->imm_curv.a = ia > 255 ? 255 : ia;
+}
+
+void g3d_texcoord(float u, float v)
+{
+ st->imm_curv.u = u;
+ st->imm_curv.v = v;
+}
+