added lighting

[dosdemo] / src / 3dgfx.h

diff --git a/src/3dgfx.h b/src/3dgfx.h
index a2fa154..ee9de63 100644 (file)
--- a/src/3dgfx.h
+++ b/src/3dgfx.h
@@ -1,6 +1,8 @@
 #ifndef THREEDGFX_H_
 #define THREEDGFX_H_
 
+#include "inttypes.h"
+
 struct g3d_vertex {
        float x, y, z, w;
        float nx, ny, nz;
@@ -20,18 +22,22 @@ enum {
        G3D_CULL_FACE = 1,
        G3D_DEPTH_TEST = 2,     /* XXX not implemented */
        G3D_LIGHTING = 4,
-       G3D_TEXTURE = 8,
+       G3D_LIGHT0 = 8,
+       G3D_LIGHT1 = 16,
+       G3D_LIGHT2 = 32,
+       G3D_LIGHT3 = 64,
+       G3D_TEXTURE = 128,
 
        G3D_ALL = 0x7fffffff
 };
 
-/* 2nd arg to g3d_draw: which space are input verts in. skips parts of the pipeline */
+/* arg to g3d_front_face */
+enum { G3D_CCW, G3D_CW };
+
+/* arg to g3d_polygon_mode */
 enum {
-       G3D_LOCAL_SPACE, /* this being 0 makes a nice default arg. */
-       G3D_VIEW_SPACE,  /* ignore modelview matrix */
-       G3D_CLIP_SPACE,  /* ignore projection matrix */
-       G3D_SCREEN_SPACE,/* 2D verts, don't divide by w */
-       G3D_PIXEL_SPACE  /* in pixel units, ignore viewport */
+       G3D_WIRE,
+       G3D_FLAT
 };
 
 /* matrix stacks */
@@ -42,7 +48,8 @@ enum {
        G3D_NUM_MATRICES
 };
 
-void g3d_init(void);
+int g3d_init(void);
+void g3d_destroy(void);
 
 void g3d_framebuffer(int width, int height, void *pixels);
 
@@ -51,18 +58,37 @@ void g3d_disable(unsigned int opt);
 void g3d_setopt(unsigned int opt, unsigned int mask);
 unsigned int g3d_getopt(unsigned int mask);
 
-void g3d_set_matrix(int which, const float *m); /* null ptr for identity */
-void g3d_mult_matrix(int which, const float *m);
-void g3d_push_matrix(int which);
-void g3d_pop_matrix(int which);
+void g3d_front_face(unsigned int order);
+void g3d_polygon_mode(int pmode);
+
+void g3d_matrix_mode(int mmode);
+
+void g3d_load_identity(void);
+void g3d_load_matrix(const float *m);
+void g3d_mult_matrix(const float *m);
+void g3d_push_matrix(void);
+void g3d_pop_matrix(void);
+
+void g3d_translate(float x, float y, float z);
+void g3d_rotate(float angle, float x, float y, float z);
+void g3d_scale(float x, float y, float z);
+void g3d_ortho(float left, float right, float bottom, float top, float znear, float zfar);
+void g3d_frustum(float left, float right, float bottom, float top, float znear, float zfar);
+void g3d_perspective(float vfov, float aspect, float znear, float zfar);
+
+const float *g3d_get_matrix(int which, float *m);
+
+void g3d_light_pos(int idx, float x, float y, float z);
+void g3d_light_color(int idx, float r, float g, float b);
+
+void g3d_light_ambient(float r, float g, float b);
 
-void g3d_translate(int which, float x, float y, float z);
-void g3d_rotate(int which, float angle, float x, float y, float z);
-void g3d_scale(int which, float x, float y, float z);
-void g3d_ortho(int which, float left, float right, float bottom, float top, float znear, float zfar);
-void g3d_frustum(int which, float left, float right, float bottom, float top, float znear, float zfar);
-void g3d_perspective(int which, float vfov, float aspect, float znear, float zfar);
+void g3d_mtl_diffuse(float r, float g, float b);
+void g3d_mtl_specular(float r, float g, float b);
+void g3d_mtl_shininess(float shin);
 
-void g3d_draw(int prim, int space, const struct g3d_vertex *varr, int varr_size);
+void g3d_draw(int prim, const struct g3d_vertex *varr, int varr_size);
+void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
+               const int16_t *iarr, int iarr_size);
 
 #endif /* THREEDGFX_H_ */