Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1901 | serge | 1 | /* |
| 2 | * mesa 3-D graphics library |
||
| 3 | * Version: 6.5 |
||
| 4 | * |
||
| 5 | * Copyright (C) 1999-2006 Brian Paul 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 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
||
| 21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
||
| 22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 23 | */ |
||
| 24 | |||
| 25 | /** |
||
| 26 | * \file vbo_context.h |
||
| 27 | * \brief VBO builder module datatypes and definitions. |
||
| 28 | * \author Keith Whitwell |
||
| 29 | */ |
||
| 30 | |||
| 31 | |||
| 32 | /** |
||
| 33 | * \mainpage The VBO builder module |
||
| 34 | * |
||
| 35 | * This module hooks into the GL dispatch table and catches all vertex |
||
| 36 | * building and drawing commands, such as glVertex3f, glBegin and |
||
| 37 | * glDrawArrays. The module stores all incoming vertex data as arrays |
||
| 38 | * in GL vertex buffer objects (VBOs), and translates all drawing |
||
| 39 | * commands into calls to a driver supplied DrawPrimitives() callback. |
||
| 40 | * |
||
| 41 | * The module captures both immediate mode and display list drawing, |
||
| 42 | * and manages the allocation, reference counting and deallocation of |
||
| 43 | * vertex buffer objects itself. |
||
| 44 | * |
||
| 45 | * The DrawPrimitives() callback can be either implemented by the |
||
| 46 | * driver itself or hooked to the tnl module's _tnl_draw_primitives() |
||
| 47 | * function for hardware without tnl capablilties or during fallbacks. |
||
| 48 | */ |
||
| 49 | |||
| 50 | |||
| 51 | #ifndef _VBO_CONTEXT_H |
||
| 52 | #define _VBO_CONTEXT_H |
||
| 53 | |||
| 54 | #include "vbo.h" |
||
| 55 | #include "vbo_attrib.h" |
||
| 56 | #include "vbo_exec.h" |
||
| 57 | #include "vbo_save.h" |
||
| 58 | |||
| 59 | |||
| 60 | struct vbo_context { |
||
| 61 | struct gl_client_array currval[VBO_ATTRIB_MAX]; |
||
| 62 | |||
| 63 | /* These point into the above. TODO: remove. |
||
| 64 | */ |
||
| 65 | struct gl_client_array *legacy_currval; |
||
| 66 | struct gl_client_array *generic_currval; |
||
| 67 | struct gl_client_array *mat_currval; |
||
| 68 | |||
| 69 | GLuint map_vp_none[VERT_ATTRIB_MAX]; |
||
| 70 | GLuint map_vp_arb[VERT_ATTRIB_MAX]; |
||
| 71 | |||
| 72 | GLfloat *current[VBO_ATTRIB_MAX]; /* points into ctx->Current, ctx->Light.Material */ |
||
| 73 | GLfloat CurrentFloatEdgeFlag; |
||
| 74 | |||
| 75 | |||
| 76 | struct vbo_exec_context exec; |
||
| 77 | #if FEATURE_dlist |
||
| 78 | struct vbo_save_context save; |
||
| 79 | #endif |
||
| 80 | |||
| 81 | /* Callback into the driver. This must always succeed, the driver |
||
| 82 | * is responsible for initiating any fallback actions required: |
||
| 83 | */ |
||
| 84 | vbo_draw_func draw_prims; |
||
| 85 | }; |
||
| 86 | |||
| 87 | |||
| 88 | static INLINE struct vbo_context *vbo_context(struct gl_context *ctx) |
||
| 89 | { |
||
| 90 | return (struct vbo_context *)(ctx->swtnl_im); |
||
| 91 | } |
||
| 92 | |||
| 93 | |||
| 94 | /** |
||
| 95 | * Return VP_x token to indicate whether we're running fixed-function |
||
| 96 | * vertex transformation, an NV vertex program or ARB vertex program/shader. |
||
| 97 | */ |
||
| 98 | static INLINE enum vp_mode |
||
| 99 | get_program_mode( struct gl_context *ctx ) |
||
| 100 | { |
||
| 101 | if (!ctx->VertexProgram._Current) |
||
| 102 | return VP_NONE; |
||
| 103 | else if (ctx->VertexProgram._Current == ctx->VertexProgram._TnlProgram) |
||
| 104 | return VP_NONE; |
||
| 105 | else if (ctx->VertexProgram._Current->IsNVProgram) |
||
| 106 | return VP_NV; |
||
| 107 | else |
||
| 108 | return VP_ARB; |
||
| 109 | } |
||
| 110 | |||
| 111 | |||
| 112 | #endif |