| 1 | /* $Id: feedback.h,v 1.1 2000-02-29 00:48:30 sandervl Exp $ */ | 
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| 2 |  | 
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| 3 | /* | 
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| 4 | * Mesa 3-D graphics library | 
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| 5 | * Version:  3.1 | 
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| 6 | * | 
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| 7 | * Copyright (C) 1999  Brian Paul   All Rights Reserved. | 
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| 8 | * | 
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| 9 | * Permission is hereby granted, free of charge, to any person obtaining a | 
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| 10 | * copy of this software and associated documentation files (the "Software"), | 
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| 11 | * to deal in the Software without restriction, including without limitation | 
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| 12 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | 
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| 13 | * and/or sell copies of the Software, and to permit persons to whom the | 
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| 14 | * Software is furnished to do so, subject to the following conditions: | 
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| 15 | * | 
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| 16 | * The above copyright notice and this permission notice shall be included | 
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| 17 | * in all copies or substantial portions of the Software. | 
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| 18 | * | 
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| 19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | 
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| 20 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | 
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| 21 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL | 
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| 22 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN | 
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| 23 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | 
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| 24 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | 
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| 25 | */ | 
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| 26 |  | 
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| 27 |  | 
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| 28 |  | 
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| 29 |  | 
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| 30 |  | 
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| 31 | #ifndef FEEDBACK_H | 
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| 32 | #define FEEDBACK_H | 
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| 33 |  | 
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| 34 |  | 
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| 35 | #include "types.h" | 
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| 36 |  | 
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| 37 |  | 
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| 38 | #define FEEDBACK_TOKEN( CTX, T )                                \ | 
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| 39 | if (CTX->Feedback.Count < CTX->Feedback.BufferSize) {   \ | 
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| 40 | CTX->Feedback.Buffer[CTX->Feedback.Count] = (GLfloat) (T); \ | 
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| 41 | }                                                       \ | 
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| 42 | CTX->Feedback.Count++; | 
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| 43 |  | 
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| 44 |  | 
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| 45 | extern void gl_feedback_vertex( GLcontext *ctx, | 
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| 46 | const GLfloat win[4], | 
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| 47 | const GLfloat color[4], | 
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| 48 | GLuint index, | 
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| 49 | const GLfloat texcoord[4] ); | 
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| 50 |  | 
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| 51 |  | 
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| 52 | extern void gl_update_hitflag( GLcontext *ctx, GLfloat z ); | 
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| 53 |  | 
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| 54 |  | 
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| 55 | extern void gl_PassThrough( GLcontext *ctx, GLfloat token ); | 
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| 56 |  | 
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| 57 | extern void gl_FeedbackBuffer( GLcontext *ctx, GLsizei size, | 
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| 58 | GLenum type, GLfloat *buffer ); | 
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| 59 |  | 
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| 60 | extern void gl_SelectBuffer( GLcontext *ctx, GLsizei size, GLuint *buffer ); | 
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| 61 |  | 
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| 62 | extern void gl_InitNames( GLcontext *ctx ); | 
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| 63 |  | 
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| 64 | extern void gl_LoadName( GLcontext *ctx, GLuint name ); | 
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| 65 |  | 
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| 66 | extern void gl_PushName( GLcontext *ctx, GLuint name ); | 
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| 67 |  | 
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| 68 | extern void gl_PopName( GLcontext *ctx ); | 
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| 69 |  | 
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| 70 | extern GLint gl_RenderMode( GLcontext *ctx, GLenum mode ); | 
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| 71 |  | 
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| 72 | extern void gl_feedback_points( GLcontext *ctx, GLuint first, GLuint last ); | 
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| 73 | extern void gl_feedback_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv ); | 
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| 74 | extern void gl_feedback_triangle( GLcontext *ctx, GLuint v0, GLuint v1, | 
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| 75 | GLuint v2, GLuint pv ); | 
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| 76 |  | 
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| 77 | extern void gl_select_points( GLcontext *ctx, GLuint first, GLuint last ); | 
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| 78 | extern void gl_select_line( GLcontext *ctx, GLuint v1, GLuint v2, GLuint pv ); | 
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| 79 | extern void gl_select_triangle( GLcontext *ctx, GLuint v0, GLuint v1, | 
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| 80 | GLuint v2, GLuint pv ); | 
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| 81 |  | 
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| 82 | #endif | 
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| 83 |  | 
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