1/* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26#ifndef FEEDBACK_H 27#define FEEDBACK_H 28 29#include "main/mtypes.h" 30 31extern void 32_mesa_feedback_vertex( struct gl_context *ctx, 33 const GLfloat win[4], 34 const GLfloat color[4], 35 const GLfloat texcoord[4] ); 36 37 38static inline void 39_mesa_feedback_token( struct gl_context *ctx, GLfloat token ) 40{ 41 if (ctx->Feedback.Count < ctx->Feedback.BufferSize) { 42 ctx->Feedback.Buffer[ctx->Feedback.Count] = token; 43 } 44 ctx->Feedback.Count++; 45} 46 47 48extern void 49_mesa_update_hitflag( struct gl_context *ctx, GLfloat z ); 50 51 52extern void 53_mesa_init_feedback( struct gl_context *ctx ); 54 55extern void 56_mesa_free_feedback( struct gl_context *ctx ); 57 58#endif /* FEEDBACK_H */ 59