1 /* 2 * mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2006 Brian Paul All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included 14 * in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * 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 <stdbool.h> 36 #include "main/glheader.h" 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 struct gl_vertex_array; 43 struct gl_context; 44 struct gl_transform_feedback_object; 45 46 struct _mesa_prim { 47 GLuint mode:8; /**< GL_POINTS, GL_LINES, GL_QUAD_STRIP, etc */ 48 GLuint indexed:1; 49 GLuint begin:1; 50 GLuint end:1; 51 GLuint weak:1; 52 GLuint no_current_update:1; 53 GLuint is_indirect:1; 54 GLuint pad:18; 55 56 GLuint start; 57 GLuint count; 58 GLint basevertex; 59 GLuint num_instances; 60 GLuint base_instance; 61 GLuint draw_id; 62 63 GLsizeiptr indirect_offset; 64 }; 65 66 /* Would like to call this a "vbo_index_buffer", but this would be 67 * confusing as the indices are not neccessarily yet in a non-null 68 * buffer object. 69 */ 70 struct _mesa_index_buffer { 71 GLuint count; 72 GLenum type; 73 struct gl_buffer_object *obj; 74 const void *ptr; 75 }; 76 77 78 79 GLboolean _vbo_CreateContext( struct gl_context *ctx ); 80 void _vbo_DestroyContext( struct gl_context *ctx ); 81 void _vbo_InvalidateState( struct gl_context *ctx, GLbitfield new_state ); 82 83 84 void 85 vbo_initialize_exec_dispatch(const struct gl_context *ctx, 86 struct _glapi_table *exec); 87 88 void 89 vbo_initialize_save_dispatch(const struct gl_context *ctx, 90 struct _glapi_table *exec); 91 92 void vbo_exec_FlushVertices(struct gl_context *ctx, GLuint flags); 93 void vbo_save_SaveFlushVertices(struct gl_context *ctx); 94 GLboolean vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode); 95 void vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode); 96 void vbo_save_EndList(struct gl_context *ctx); 97 void vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *list); 98 void vbo_save_EndCallList(struct gl_context *ctx); 99 100 101 typedef void (*vbo_draw_func)( struct gl_context *ctx, 102 const struct _mesa_prim *prims, 103 GLuint nr_prims, 104 const struct _mesa_index_buffer *ib, 105 GLboolean index_bounds_valid, 106 GLuint min_index, 107 GLuint max_index, 108 struct gl_transform_feedback_object *tfb_vertcount, 109 unsigned stream, 110 struct gl_buffer_object *indirect); 111 112 113 typedef void (*vbo_indirect_draw_func)( 114 struct gl_context *ctx, 115 GLuint mode, 116 struct gl_buffer_object *indirect_data, 117 GLsizeiptr indirect_offset, 118 unsigned draw_count, 119 unsigned stride, 120 struct gl_buffer_object *indirect_params, 121 GLsizeiptr indirect_params_offset, 122 const struct _mesa_index_buffer *ib); 123 124 125 126 127 /* Utility function to cope with various constraints on tnl modules or 128 * hardware. This can be used to split an incoming set of arrays and 129 * primitives against the following constraints: 130 * - Maximum number of indices in index buffer. 131 * - Maximum number of vertices referenced by index buffer. 132 * - Maximum hardware vertex buffer size. 133 */ 134 struct split_limits { 135 GLuint max_verts; 136 GLuint max_indices; 137 GLuint max_vb_size; /* bytes */ 138 }; 139 140 141 void vbo_split_prims( struct gl_context *ctx, 142 const struct gl_vertex_array *arrays[], 143 const struct _mesa_prim *prim, 144 GLuint nr_prims, 145 const struct _mesa_index_buffer *ib, 146 GLuint min_index, 147 GLuint max_index, 148 vbo_draw_func draw, 149 const struct split_limits *limits ); 150 151 152 /* Helpers for dealing translating away non-zero min_index. 153 */ 154 GLboolean vbo_all_varyings_in_vbos( const struct gl_vertex_array *arrays[] ); 155 GLboolean vbo_any_varyings_in_vbos( const struct gl_vertex_array *arrays[] ); 156 157 void vbo_rebase_prims( struct gl_context *ctx, 158 const struct gl_vertex_array *arrays[], 159 const struct _mesa_prim *prim, 160 GLuint nr_prims, 161 const struct _mesa_index_buffer *ib, 162 GLuint min_index, 163 GLuint max_index, 164 vbo_draw_func draw ); 165 166 static inline int 167 vbo_sizeof_ib_type(GLenum type) 168 { 169 switch (type) { 170 case GL_UNSIGNED_INT: 171 return sizeof(GLuint); 172 case GL_UNSIGNED_SHORT: 173 return sizeof(GLushort); 174 case GL_UNSIGNED_BYTE: 175 return sizeof(GLubyte); 176 default: 177 assert(!"unsupported index data type"); 178 /* In case assert is turned off */ 179 return 0; 180 } 181 } 182 183 void 184 vbo_delete_minmax_cache(struct gl_buffer_object *bufferObj); 185 186 void 187 vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim, 188 const struct _mesa_index_buffer *ib, 189 GLuint *min_index, GLuint *max_index, GLuint nr_prims); 190 191 void vbo_use_buffer_objects(struct gl_context *ctx); 192 193 void vbo_always_unmap_buffers(struct gl_context *ctx); 194 195 void vbo_set_draw_func(struct gl_context *ctx, vbo_draw_func func); 196 197 void vbo_set_indirect_draw_func(struct gl_context *ctx, 198 vbo_indirect_draw_func func); 199 200 void vbo_bind_arrays(struct gl_context *ctx); 201 202 size_t 203 vbo_count_tessellated_primitives(GLenum mode, GLuint count, 204 GLuint num_instances); 205 206 void 207 vbo_try_prim_conversion(struct _mesa_prim *p); 208 209 bool 210 vbo_can_merge_prims(const struct _mesa_prim *p0, const struct _mesa_prim *p1); 211 212 void 213 vbo_merge_prims(struct _mesa_prim *p0, const struct _mesa_prim *p1); 214 215 void 216 vbo_sw_primitive_restart(struct gl_context *ctx, 217 const struct _mesa_prim *prim, 218 GLuint nr_prims, 219 const struct _mesa_index_buffer *ib, 220 struct gl_buffer_object *indirect); 221 222 void GLAPIENTRY 223 _es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a); 224 225 void GLAPIENTRY 226 _es_Normal3f(GLfloat x, GLfloat y, GLfloat z); 227 228 void GLAPIENTRY 229 _es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q); 230 231 void GLAPIENTRY 232 _es_Materialfv(GLenum face, GLenum pname, const GLfloat *params); 233 234 void GLAPIENTRY 235 _es_Materialf(GLenum face, GLenum pname, GLfloat param); 236 237 void GLAPIENTRY 238 _es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); 239 240 void GLAPIENTRY 241 _es_VertexAttrib1f(GLuint indx, GLfloat x); 242 243 void GLAPIENTRY 244 _es_VertexAttrib1fv(GLuint indx, const GLfloat* values); 245 246 void GLAPIENTRY 247 _es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y); 248 249 void GLAPIENTRY 250 _es_VertexAttrib2fv(GLuint indx, const GLfloat* values); 251 252 void GLAPIENTRY 253 _es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z); 254 255 void GLAPIENTRY 256 _es_VertexAttrib3fv(GLuint indx, const GLfloat* values); 257 258 void GLAPIENTRY 259 _es_VertexAttrib4fv(GLuint indx, const GLfloat* values); 260 261 #ifdef __cplusplus 262 } // extern "C" 263 #endif 264 265 #endif 266
