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 #ifndef _VBO_H 33 #define _VBO_H 34 35 #include "main/glheader.h" 36 37 struct gl_client_array; 38 struct gl_context; 39 struct gl_transform_feedback_object; 40 41 struct _mesa_prim { 42 GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */ 43 GLuint indexed:1; 44 GLuint begin:1; 45 GLuint end:1; 46 GLuint weak:1; 47 GLuint no_current_update:1; 48 GLuint pad:19; 49 50 GLuint start; 51 GLuint count; 52 GLint basevertex; 53 GLsizei num_instances; 54 GLuint base_instance; 55 }; 56 57 /* Would like to call this a "vbo_index_buffer", but this would be 58 * confusing as the indices are not neccessarily yet in a non-null 59 * buffer object. 60 */ 61 struct _mesa_index_buffer { 62 GLuint count; 63 GLenum type; 64 struct gl_buffer_object *obj; 65 const void *ptr; 66 }; 67 68 69 70 GLboolean _vbo_CreateContext( struct gl_context *ctx ); 71 void _vbo_DestroyContext( struct gl_context *ctx ); 72 void _vbo_InvalidateState( struct gl_context *ctx, GLuint new_state ); 73 74 75 typedef void (*vbo_draw_func)( struct gl_context *ctx, 76 const struct _mesa_prim *prims, 77 GLuint nr_prims, 78 const struct _mesa_index_buffer *ib, 79 GLboolean index_bounds_valid, 80 GLuint min_index, 81 GLuint max_index, 82 struct gl_transform_feedback_object *tfb_vertcount ); 83 84 85 86 87 /* Utility function to cope with various constraints on tnl modules or 88 * hardware. This can be used to split an incoming set of arrays and 89 * primitives against the following constraints: 90 * - Maximum number of indices in index buffer. 91 * - Maximum number of vertices referenced by index buffer. 92 * - Maximum hardware vertex buffer size. 93 */ 94 struct split_limits { 95 GLuint max_verts; 96 GLuint max_indices; 97 GLuint max_vb_size; /* bytes */ 98 }; 99 100 101 void vbo_split_prims( struct gl_context *ctx, 102 const struct gl_client_array *arrays[], 103 const struct _mesa_prim *prim, 104 GLuint nr_prims, 105 const struct _mesa_index_buffer *ib, 106 GLuint min_index, 107 GLuint max_index, 108 vbo_draw_func draw, 109 const struct split_limits *limits ); 110 111 112 /* Helpers for dealing translating away non-zero min_index. 113 */ 114 GLboolean vbo_all_varyings_in_vbos( const struct gl_client_array *arrays[] ); 115 GLboolean vbo_any_varyings_in_vbos( const struct gl_client_array *arrays[] ); 116 117 void vbo_rebase_prims( struct gl_context *ctx, 118 const struct gl_client_array *arrays[], 119 const struct _mesa_prim *prim, 120 GLuint nr_prims, 121 const struct _mesa_index_buffer *ib, 122 GLuint min_index, 123 GLuint max_index, 124 vbo_draw_func draw ); 125 126 static inline int 127 vbo_sizeof_ib_type(GLenum type) 128 { 129 switch (type) { 130 case GL_UNSIGNED_INT: 131 return sizeof(GLuint); 132 case GL_UNSIGNED_SHORT: 133 return sizeof(GLushort); 134 case GL_UNSIGNED_BYTE: 135 return sizeof(GLubyte); 136 default: 137 assert(!"unsupported index data type"); 138 /* In case assert is turned off */ 139 return 0; 140 } 141 } 142 143 void 144 vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim, 145 const struct _mesa_index_buffer *ib, 146 GLuint *min_index, GLuint *max_index, GLuint nr_prims); 147 148 void vbo_use_buffer_objects(struct gl_context *ctx); 149 150 void vbo_always_unmap_buffers(struct gl_context *ctx); 151 152 void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func); 153 154 void vbo_check_buffers_are_unmapped(struct gl_context *ctx); 155 156 void vbo_bind_arrays(struct gl_context *ctx); 157 158 size_t 159 count_tessellated_primitives(const struct _mesa_prim *prim); 160 161 void 162 vbo_sw_primitive_restart(struct gl_context *ctx, 163 const struct _mesa_prim *prim, 164 GLuint nr_prims, 165 const struct _mesa_index_buffer *ib); 166 167 void GLAPIENTRY 168 _es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a); 169 170 void GLAPIENTRY 171 _es_Normal3f(GLfloat x, GLfloat y, GLfloat z); 172 173 void GLAPIENTRY 174 _es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q); 175 176 void GLAPIENTRY 177 _es_Materialfv(GLenum face, GLenum pname, const GLfloat *params); 178 179 void GLAPIENTRY 180 _es_Materialf(GLenum face, GLenum pname, GLfloat param); 181 182 void GLAPIENTRY 183 _es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); 184 185 void GLAPIENTRY 186 _es_VertexAttrib1f(GLuint indx, GLfloat x); 187 188 void GLAPIENTRY 189 _es_VertexAttrib1fv(GLuint indx, const GLfloat* values); 190 191 void GLAPIENTRY 192 _es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y); 193 194 void GLAPIENTRY 195 _es_VertexAttrib2fv(GLuint indx, const GLfloat* values); 196 197 void GLAPIENTRY 198 _es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z); 199 200 void GLAPIENTRY 201 _es_VertexAttrib3fv(GLuint indx, const GLfloat* values); 202 203 void GLAPIENTRY 204 _es_VertexAttrib4fv(GLuint indx, const GLfloat* values); 205 206 #endif 207
