/* * Copyright 2003 VMware, 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 * VMWARE 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@vmware.com> */ #ifndef _TNL_VERTEX_H #define _TNL_VERTEX_H #include "main/glheader.h" #include "t_context.h" struct gl_context; struct tnl_clipspace; /* 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 weird 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; }; struct tnl_format_info { const char *name; tnl_extract_func extract; tnl_insert_func insert[4]; const GLuint attrsize; }; extern const struct tnl_format_info _tnl_format_info[EMIT_MAX]; /* Interpolate between two vertices to produce a third: */ extern void _tnl_interp( struct gl_context *ctx, GLfloat t, GLuint edst, GLuint eout, GLuint ein, GLboolean force_boundary ); /* Copy colors from one vertex to another: */ extern void _tnl_copy_pv( struct gl_context *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( struct gl_context *ctx, const void *vertex, GLenum attrib, GLfloat *dest ); /* Complementary to the above. */ extern void _tnl_set_attr( struct gl_context *ctx, void *vout, GLenum attrib, const GLfloat *src ); extern void *_tnl_get_vertex( struct gl_context *ctx, GLuint nr ); extern GLuint _tnl_install_attrs( struct gl_context *ctx, const struct tnl_attr_map *map, GLuint nr, const GLfloat *vp, GLuint unpacked_size ); extern void _tnl_free_vertices( struct gl_context *ctx ); extern void _tnl_init_vertices( struct gl_context *ctx, GLuint vb_size, GLuint max_vertex_size ); extern void *_tnl_emit_vertices_to_buffer( struct gl_context *ctx, GLuint start, GLuint end, void *dest ); /* This function isn't optimal. Check out * gallium/auxilary/translate for a more comprehensive implementation of * the same functionality. */ extern void *_tnl_emit_indexed_vertices_to_buffer( struct gl_context *ctx, const GLuint *elts, GLuint start, GLuint end, void *dest ); extern void _tnl_build_vertices( struct gl_context *ctx, GLuint start, GLuint end, GLuint newinputs ); extern void _tnl_invalidate_vertices( struct gl_context *ctx, GLuint newinputs ); extern void _tnl_invalidate_vertex_state( struct gl_context *ctx, GLuint new_state ); extern void _tnl_notify_pipeline_output_change( struct gl_context *ctx ); #define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace) /* Internal function: */ void _tnl_register_fastpath( struct tnl_clipspace *vtx, GLboolean match_strides ); /* t_vertex_generic.c -- Internal functions for t_vertex.c */ void _tnl_generic_copy_pv_extras( struct gl_context *ctx, GLuint dst, GLuint src ); void _tnl_generic_interp_extras( struct gl_context *ctx, GLfloat t, GLuint dst, GLuint out, GLuint in, GLboolean force_boundary ); void _tnl_generic_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc ); void _tnl_generic_interp( struct gl_context *ctx, GLfloat t, GLuint edst, GLuint eout, GLuint ein, GLboolean force_boundary ); void _tnl_generic_emit( struct gl_context *ctx, GLuint count, GLubyte *v ); void _tnl_generate_hardwired_emit( struct gl_context *ctx ); /* t_vertex_sse.c -- Internal functions for t_vertex.c */ void _tnl_generate_sse_emit( struct gl_context *ctx ); #endif