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Diffstat (limited to 'src/mesa/tnl/t_vertex.h')
| -rw-r--r-- | src/mesa/tnl/t_vertex.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/mesa/tnl/t_vertex.h b/src/mesa/tnl/t_vertex.h new file mode 100644 index 0000000..caa2220 --- /dev/null +++ b/src/mesa/tnl/t_vertex.h @@ -0,0 +1,150 @@ +/* + * Copyright 2003 Tungsten Graphics, inc. + * 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 + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, 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 (including the next + * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE + * USE OR OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: + * Keith Whitwell <keithw@tungstengraphics.com> + */ + +#ifndef _TNL_VERTEX_H +#define _TNL_VERTEX_H + +#include "mtypes.h" +#include "t_context.h" + +/* New mechanism to specify hardware vertices so that tnl can build + * and manipulate them directly. + */ + + +/* It will probably be necessary to allow drivers to specify new + * emit-styles to cover all the wierd and wacky things out there. + */ +enum tnl_attr_format { + EMIT_1F, + EMIT_2F, + EMIT_3F, + EMIT_4F, + EMIT_2F_VIEWPORT, /* do viewport transform and emit */ + EMIT_3F_VIEWPORT, /* do viewport transform and emit */ + EMIT_4F_VIEWPORT, /* do viewport transform and emit */ + EMIT_3F_XYW, /* for projective texture */ + EMIT_1UB_1F, /* for fog coordinate */ + EMIT_3UB_3F_RGB, /* for specular color */ + EMIT_3UB_3F_BGR, /* for specular color */ + EMIT_4UB_4F_RGBA, /* for color */ + EMIT_4UB_4F_BGRA, /* for color */ + EMIT_4UB_4F_ARGB, /* for color */ + EMIT_4UB_4F_ABGR, /* for color */ + EMIT_4CHAN_4F_RGBA, /* for swrast color */ + EMIT_PAD, /* leave a hole of 'offset' bytes */ + EMIT_MAX +}; + +struct tnl_attr_map { + GLuint attrib; /* _TNL_ATTRIB_ enum */ + enum tnl_attr_format format; + GLuint offset; +}; + + + +/* Interpolate between two vertices to produce a third: + */ +extern void _tnl_interp( GLcontext *ctx, + GLfloat t, + GLuint edst, GLuint eout, GLuint ein, + GLboolean force_boundary ); + +/* Copy colors from one vertex to another: + */ +extern void _tnl_copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc ); + + +/* Extract a named attribute from a hardware vertex. Will have to + * reverse any viewport transformation, swizzling or other conversions + * which may have been applied: + */ +extern void _tnl_get_attr( GLcontext *ctx, const void *vertex, GLenum attrib, + GLfloat *dest ); + +/* Complementary to the above. + */ +extern void _tnl_set_attr( GLcontext *ctx, void *vout, GLenum attrib, + const GLfloat *src ); + + +extern void *_tnl_get_vertex( GLcontext *ctx, GLuint nr ); + + +/* + */ +extern GLuint _tnl_install_attrs( GLcontext *ctx, + const struct tnl_attr_map *map, + GLuint nr, const GLfloat *vp, + GLuint unpacked_size ); + + + + + +extern void _tnl_free_vertices( GLcontext *ctx ); + +extern void _tnl_init_vertices( GLcontext *ctx, + GLuint vb_size, + GLuint max_vertex_size ); + +extern void *_tnl_emit_vertices_to_buffer( GLcontext *ctx, + GLuint start, + GLuint end, + void *dest ); + +extern void _tnl_build_vertices( GLcontext *ctx, + GLuint start, + GLuint end, + GLuint newinputs ); + +extern void _tnl_invalidate_vertices( GLcontext *ctx, GLuint newinputs ); + +extern void _tnl_invalidate_vertex_state( GLcontext *ctx, GLuint new_state ); + +extern tnl_emit_func _tnl_codegen_emit( GLcontext *ctx ); + +#define REG_IN (0<<16) +#define REG_OUT (1<<16) +#define REG_VP (2<<16) +#define REG_TMP (3<<16) +#define REG_MASK (3<<16) + +#define REG_OFFSET_MASK 0xffff + +#define in( offset ) (REG_IN | (offset)) +#define out( offset ) (REG_OUT | (offset)) +#define vp( offset ) (REG_VP | (offset)) +#define tmp( offset ) (REG_TMP | (offset)) + + +extern void _tnl_init_c_codegen( struct tnl_clipspace_codegen *p ); + +#define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace) + +#endif |