-/* $Id: light.h,v 1.7 2000/11/24 10:25:05 keithw Exp $ */
+/* $Id: light.h,v 1.14 2001/09/14 21:36:43 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
+ * 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"),
/* 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; \
- if (dp>1.0) \
- result = pow( dp, _tab->shininess ); \
- else { \
- float f = (dp * (SHINE_TABLE_SIZE-1)); \
- int k = (int) f; \
+ 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 GLuint _mesa_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 void _mesa_invalidate_spot_exp_table( struct gl_light *l );
-extern void gl_compute_spot_exp_table( struct gl_light *l );
+extern void _mesa_invalidate_shine_table( GLcontext *ctx, GLuint i );
-extern void gl_compute_shine_table( GLcontext *ctx, GLuint i,
- GLfloat shininess );
+extern void _mesa_validate_all_lighting_tables( GLcontext *ctx );
-extern void gl_update_lighting( GLcontext *ctx );
+extern void _mesa_update_lighting( GLcontext *ctx );
-extern void gl_compute_light_positions( GLcontext *ctx );
+extern void _mesa_compute_light_positions( GLcontext *ctx );
-extern void gl_update_material( GLcontext *ctx,
- const struct gl_material src[2],
- 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 GLchan 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