1 /* 2 * Copyright 2009 Marek Olk <maraeo (at) gmail.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 22 23 #ifndef R300_SHADER_SEMANTICS_H 24 #define R300_SHADER_SEMANTICS_H 25 26 #define ATTR_UNUSED (-1) 27 #define ATTR_COLOR_COUNT 2 28 #define ATTR_GENERIC_COUNT 32 29 30 /* This structure contains information about what attributes are written by VS 31 * or read by FS. (but not both) It's much easier to work with than 32 * tgsi_shader_info. 33 * 34 * The variables contain indices to tgsi_shader_info semantics and those 35 * indices are nothing else than input/output register numbers. */ 36 struct r300_shader_semantics { 37 int pos; 38 int psize; 39 int color[ATTR_COLOR_COUNT]; 40 int bcolor[ATTR_COLOR_COUNT]; 41 int face; 42 int generic[ATTR_GENERIC_COUNT]; 43 int fog; 44 int wpos; 45 46 int num_generic; 47 }; 48 49 static inline void r300_shader_semantics_reset( 50 struct r300_shader_semantics* info) 51 { 52 int i; 53 54 info->pos = ATTR_UNUSED; 55 info->psize = ATTR_UNUSED; 56 info->face = ATTR_UNUSED; 57 info->fog = ATTR_UNUSED; 58 info->wpos = ATTR_UNUSED; 59 60 for (i = 0; i < ATTR_COLOR_COUNT; i++) { 61 info->color[i] = ATTR_UNUSED; 62 info->bcolor[i] = ATTR_UNUSED; 63 } 64 65 for (i = 0; i < ATTR_GENERIC_COUNT; i++) { 66 info->generic[i] = ATTR_UNUSED; 67 } 68 69 info->num_generic = 0; 70 } 71 72 #endif 73
