draw_context.h revision eb4dc2dd5ed62e6ccb55ccc2bc13f6a2f3fc1f76
1 2/************************************************************************** 3 * 4 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 5 * 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 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sub license, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial portions 17 * of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 **************************************************************************/ 28 29/** 30 * \brief Public interface into the drawing module. 31 */ 32 33/* Authors: Keith Whitwell <keith@tungstengraphics.com> 34 */ 35 36 37#ifndef DRAW_CONTEXT_H 38#define DRAW_CONTEXT_H 39 40 41#include "pipe/p_state.h" 42 43 44struct pipe_context; 45struct vertex_buffer; 46struct vertex_info; 47struct draw_context; 48struct draw_stage; 49struct draw_vertex_shader; 50 51 52/** 53 * Clipmask flags 54 */ 55/*@{*/ 56#define CLIP_RIGHT_BIT 0x01 57#define CLIP_LEFT_BIT 0x02 58#define CLIP_TOP_BIT 0x04 59#define CLIP_BOTTOM_BIT 0x08 60#define CLIP_NEAR_BIT 0x10 61#define CLIP_FAR_BIT 0x20 62/*@}*/ 63 64/** 65 * Bitshift for each clip flag 66 */ 67/*@{*/ 68#define CLIP_RIGHT_SHIFT 0 69#define CLIP_LEFT_SHIFT 1 70#define CLIP_TOP_SHIFT 2 71#define CLIP_BOTTOM_SHIFT 3 72#define CLIP_NEAR_SHIFT 4 73#define CLIP_FAR_SHIFT 5 74/*@}*/ 75 76 77struct draw_context *draw_create( void ); 78 79void draw_destroy( struct draw_context *draw ); 80 81void draw_set_viewport_state( struct draw_context *draw, 82 const struct pipe_viewport_state *viewport ); 83 84void draw_set_clip_state( struct draw_context *pipe, 85 const struct pipe_clip_state *clip ); 86 87void draw_set_rasterizer_state( struct draw_context *draw, 88 const struct pipe_rasterizer_state *raster ); 89 90void draw_set_rasterize_stage( struct draw_context *draw, 91 struct draw_stage *stage ); 92 93void draw_convert_wide_points(struct draw_context *draw, boolean enable); 94 95void draw_convert_wide_lines(struct draw_context *draw, boolean enable); 96 97boolean draw_use_sse(struct draw_context *draw); 98 99void 100draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe); 101 102void 103draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe); 104 105 106int 107draw_find_vs_output(struct draw_context *draw, 108 uint semantic_name, uint semantic_index); 109 110 111/* 112 * Vertex shader functions 113 */ 114 115struct draw_vertex_shader * 116draw_create_vertex_shader(struct draw_context *draw, 117 const struct pipe_shader_state *shader); 118void draw_bind_vertex_shader(struct draw_context *draw, 119 struct draw_vertex_shader *dvs); 120void draw_delete_vertex_shader(struct draw_context *draw, 121 struct draw_vertex_shader *dvs); 122 123 124 125/* 126 * Vertex data functions 127 */ 128 129void draw_set_vertex_buffer(struct draw_context *draw, 130 unsigned attr, 131 const struct pipe_vertex_buffer *buffer); 132 133void draw_set_vertex_element(struct draw_context *draw, 134 unsigned attr, 135 const struct pipe_vertex_element *element); 136 137void draw_set_mapped_element_buffer( struct draw_context *draw, 138 unsigned eltSize, void *elements ); 139 140void draw_set_mapped_vertex_buffer(struct draw_context *draw, 141 unsigned attr, const void *buffer); 142 143void draw_set_mapped_constant_buffer(struct draw_context *draw, 144 const void *buffer); 145 146 147/*********************************************************************** 148 * draw_prim.c 149 */ 150 151void draw_arrays(struct draw_context *draw, unsigned prim, 152 unsigned start, unsigned count); 153 154void draw_flush(struct draw_context *draw); 155 156/*********************************************************************** 157 * draw_debug.c 158 */ 159boolean draw_validate_prim( unsigned prim, unsigned length ); 160unsigned draw_trim_prim( unsigned mode, unsigned count ); 161 162 163 164#endif /* DRAW_CONTEXT_H */ 165