-/* $Id: light.h,v 1.2 1999/11/11 01:22:27 brianp Exp $ */
+/* $Id: light.h,v 1.14 2001/09/14 21:36:43 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.3
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
+ * Version: 3.5
+ *
+ * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ *
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
- *
+ *
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
#define LIGHT_H
-#include "types.h"
-
-struct gl_shine_tab {
- struct gl_shine_tab *next, *prev;
- GLfloat tab[SHINE_TABLE_SIZE+1];
- GLfloat shininess;
- GLuint refcount;
-};
+#include "mtypes.h"
extern void
extern void
_mesa_LightModeliv( GLenum pname, const GLint *params );
-extern void
-_mesa_Materialf( GLenum face, GLenum pname, GLfloat param );
-
-extern void
-_mesa_Materialfv( GLenum face, GLenum pname, const GLfloat *params );
-
-extern void
-_mesa_Materiali( GLenum face, GLenum pname, GLint param );
-
-extern void
-_mesa_Materialiv( GLenum face, GLenum pname, const GLint *params );
-
extern void
_mesa_GetLightfv( GLenum light, GLenum pname, GLfloat *params );
_mesa_GetMaterialiv( GLenum face, GLenum pname, GLint *params );
+/* Lerp between adjacent values in the f(x) lookup table, giving a
+ * continuous function, with adequeate overall accuracy. (Though
+ * still pretty good compared to a straight lookup).
+ * Result should be a GLfloat.
+ */
+#define GET_SHINE_TAB_ENTRY( table, dp, result ) \
+do { \
+ struct gl_shine_tab *_tab = table; \
+ float f = (dp * (SHINE_TABLE_SIZE-1)); \
+ int k = (int) f; \
+ if (k > SHINE_TABLE_SIZE-2) \
+ result = (GLfloat) pow( dp, _tab->shininess ); \
+ else \
+ result = _tab->tab[k] + (f-k)*(_tab->tab[k+1]-_tab->tab[k]); \
+} while (0)
+
-extern GLuint gl_material_bitmask( GLcontext *ctx,
- GLenum face, GLenum pname,
- GLuint legal,
- const char * );
-extern void gl_set_material( GLcontext *ctx, GLuint bitmask,
- const GLfloat *params);
+extern GLuint _mesa_material_bitmask( GLcontext *ctx,
+ GLenum face, GLenum pname,
+ GLuint legal,
+ const char * );
-extern void gl_compute_spot_exp_table( struct gl_light *l );
+extern void _mesa_invalidate_spot_exp_table( struct gl_light *l );
-extern void gl_compute_shine_table( GLcontext *ctx, GLuint i,
- GLfloat shininess );
+extern void _mesa_invalidate_shine_table( GLcontext *ctx, GLuint i );
-extern void gl_update_lighting( GLcontext *ctx );
+extern void _mesa_validate_all_lighting_tables( GLcontext *ctx );
-extern void gl_compute_light_positions( GLcontext *ctx );
+extern void _mesa_update_lighting( GLcontext *ctx );
-extern void gl_update_normal_transform( GLcontext *ctx );
+extern void _mesa_compute_light_positions( GLcontext *ctx );
-extern void gl_update_material( GLcontext *ctx,
- struct gl_material *m,
- GLuint bitmask );
+extern void _mesa_update_material( GLcontext *ctx,
+ const struct gl_material src[2],
+ GLuint bitmask );
-extern void gl_update_color_material( GLcontext *ctx, const GLubyte rgba[4] );
+extern void _mesa_copy_material_pairs( struct gl_material dst[2],
+ const struct gl_material src[2],
+ GLuint bitmask );
+extern void _mesa_update_color_material( GLcontext *ctx,
+ const GLfloat rgba[4] );
-#endif
+#endif