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      1 /*
      2  * Copyright (C) 2009-2010 Francisco Jerez.
      3  * All Rights Reserved.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining
      6  * a copy of this software and associated documentation files (the
      7  * "Software"), to deal in the Software without restriction, including
      8  * without limitation the rights to use, copy, modify, merge, publish,
      9  * distribute, sublicense, and/or sell copies of the Software, and to
     10  * permit persons to whom the Software is furnished to do so, subject to
     11  * the following conditions:
     12  *
     13  * The above copyright notice and this permission notice (including the
     14  * next paragraph) shall be included in all copies or substantial
     15  * portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
     18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
     20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
     21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
     22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
     23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     24  *
     25  */
     26 
     27 #ifndef __NOUVEAU_RENDER_H__
     28 #define __NOUVEAU_RENDER_H__
     29 
     30 #include "vbo/vbo_context.h"
     31 #include "nouveau_array.h"
     32 
     33 typedef void (*dispatch_t)(struct gl_context *, unsigned int, int, unsigned int);
     34 typedef void (*emit_t)(struct gl_context *, struct nouveau_array *, const void *);
     35 
     36 struct nouveau_attr_info {
     37 	int vbo_index;
     38 	int imm_method;
     39 	int imm_fields;
     40 
     41 	emit_t emit;
     42 };
     43 
     44 struct nouveau_swtnl_state {
     45 	struct nouveau_bo *vbo;
     46 	unsigned offset;
     47 	void *buf;
     48 	unsigned vertex_count;
     49 	GLenum primitive;
     50 };
     51 
     52 struct nouveau_render_state {
     53 	enum {
     54 		VBO,
     55 		IMM
     56 	} mode;
     57 
     58 	struct nouveau_array ib;
     59 	struct nouveau_array attrs[VERT_ATTRIB_MAX];
     60 
     61 	/* Maps a HW VBO index or IMM emission order to an index in
     62 	 * the attrs array above (or -1 if unused). */
     63 	int map[VERT_ATTRIB_MAX];
     64 
     65 	int attr_count;
     66 	int vertex_size;
     67 
     68 	struct nouveau_swtnl_state swtnl;
     69 };
     70 
     71 #define to_render_state(ctx) (&to_nouveau_context(ctx)->render)
     72 
     73 #define FOR_EACH_ATTR(render, i, attr)					\
     74 	for (i = 0; attr = (render)->map[i], i < NUM_VERTEX_ATTRS; i++)
     75 
     76 #define FOR_EACH_BOUND_ATTR(render, i, attr)				\
     77 	for (i = 0; attr = (render)->map[i], i < render->attr_count; i++) \
     78 		if (attr >= 0)
     79 
     80 #endif
     81