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 * \brief Public interface to the VBO module 27 * \author Keith Whitwell 28 */ 29 30 31 #ifndef _VBO_H 32 #define _VBO_H 33 34 #include <stdbool.h> 35 #include "main/glheader.h" 36 #include "main/dd.h" 37 #include "main/draw.h" 38 #include "main/macros.h" 39 #include "vbo_attrib.h" 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 struct gl_context; 46 struct vbo_module; 47 48 /** 49 * Max number of primitives (number of glBegin/End pairs) per VBO. 50 */ 51 #define VBO_MAX_PRIM 64 52 53 54 /** 55 * Current vertex processing mode: fixed function vs. shader. 56 * In reality, fixed function is probably implemented by a shader but that's 57 * not what we care about here. 58 */ 59 typedef enum 60 { 61 VP_MODE_FF, /**< legacy / fixed function */ 62 VP_MODE_SHADER, /**< ARB vertex program or GLSL vertex shader */ 63 VP_MODE_MAX /**< for sizing arrays */ 64 } gl_vertex_processing_mode; 65 66 67 struct vbo_exec_eval1_map { 68 struct gl_1d_map *map; 69 GLuint sz; 70 }; 71 72 struct vbo_exec_eval2_map { 73 struct gl_2d_map *map; 74 GLuint sz; 75 }; 76 77 struct vbo_exec_copied_vtx { 78 fi_type buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS]; 79 GLuint nr; 80 }; 81 82 struct vbo_exec_context 83 { 84 struct gl_context *ctx; 85 GLvertexformat vtxfmt; 86 GLvertexformat vtxfmt_noop; 87 88 struct { 89 struct gl_buffer_object *bufferobj; 90 91 GLuint vertex_size; /* in dwords */ 92 GLuint vertex_size_no_pos; 93 94 struct _mesa_prim prim[VBO_MAX_PRIM]; 95 GLuint prim_count; 96 97 fi_type *buffer_map; 98 fi_type *buffer_ptr; /* cursor, points into buffer */ 99 GLuint buffer_used; /* in bytes */ 100 unsigned buffer_offset; /* only for persistent mappings */ 101 fi_type vertex[VBO_ATTRIB_MAX*4]; /* current vertex */ 102 103 GLuint vert_count; /**< Number of vertices currently in buffer */ 104 GLuint max_vert; /**< Max number of vertices allowed in buffer */ 105 struct vbo_exec_copied_vtx copied; 106 107 GLbitfield64 enabled; /**< mask of enabled vbo arrays. */ 108 109 /* Keep these packed in a structure for faster access. */ 110 struct { 111 GLenum16 type; /**< GL_FLOAT, GL_DOUBLE, GL_INT, etc */ 112 GLubyte active_size; /**< number of components, but can shrink */ 113 GLubyte size; /**< number of components (1..4) */ 114 } attr[VBO_ATTRIB_MAX]; 115 116 /** pointers into the current 'vertex' array, declared above */ 117 fi_type *attrptr[VBO_ATTRIB_MAX]; 118 } vtx; 119 120 struct { 121 GLboolean recalculate_maps; 122 struct vbo_exec_eval1_map map1[VERT_ATTRIB_MAX]; 123 struct vbo_exec_eval2_map map2[VERT_ATTRIB_MAX]; 124 } eval; 125 126 #ifndef NDEBUG 127 GLint flush_call_depth; 128 #endif 129 }; 130 131 struct vbo_save_copied_vtx { 132 fi_type buffer[VBO_ATTRIB_MAX * 4 * VBO_MAX_COPIED_VERTS]; 133 GLuint nr; 134 }; 135 136 struct vbo_save_context { 137 struct gl_context *ctx; 138 GLvertexformat vtxfmt; 139 GLvertexformat vtxfmt_noop; /**< Used if out_of_memory is true */ 140 141 GLbitfield64 enabled; /**< mask of enabled vbo arrays. */ 142 GLubyte attrsz[VBO_ATTRIB_MAX]; /**< 1, 2, 3 or 4 */ 143 GLenum16 attrtype[VBO_ATTRIB_MAX]; /**< GL_FLOAT, GL_INT, etc */ 144 GLubyte active_sz[VBO_ATTRIB_MAX]; /**< 1, 2, 3 or 4 */ 145 GLuint vertex_size; /**< size in GLfloats */ 146 struct gl_vertex_array_object *VAO[VP_MODE_MAX]; 147 148 GLboolean out_of_memory; /**< True if last VBO allocation failed */ 149 150 GLbitfield replay_flags; 151 152 struct _mesa_prim *prims; 153 GLuint prim_count, prim_max; 154 155 bool no_current_update; 156 157 struct vbo_save_vertex_store *vertex_store; 158 struct vbo_save_primitive_store *prim_store; 159 160 fi_type *buffer_map; /**< Mapping of vertex_store's buffer */ 161 fi_type *buffer_ptr; /**< cursor, points into buffer_map */ 162 fi_type vertex[VBO_ATTRIB_MAX*4]; /* current values */ 163 fi_type *attrptr[VBO_ATTRIB_MAX]; 164 GLuint vert_count; 165 GLuint max_vert; 166 GLboolean dangling_attr_ref; 167 168 GLuint opcode_vertex_list; 169 170 struct vbo_save_copied_vtx copied; 171 172 fi_type *current[VBO_ATTRIB_MAX]; /* points into ctx->ListState */ 173 GLubyte *currentsz[VBO_ATTRIB_MAX]; 174 }; 175 176 GLboolean 177 _vbo_CreateContext(struct gl_context *ctx, bool use_buffer_objects); 178 179 void 180 _vbo_DestroyContext(struct gl_context *ctx); 181 182 void 183 vbo_exec_update_eval_maps(struct gl_context *ctx); 184 185 void 186 _vbo_install_exec_vtxfmt(struct gl_context *ctx); 187 188 void 189 vbo_initialize_exec_dispatch(const struct gl_context *ctx, 190 struct _glapi_table *exec); 191 192 void 193 vbo_initialize_save_dispatch(const struct gl_context *ctx, 194 struct _glapi_table *exec); 195 196 void 197 vbo_exec_FlushVertices(struct gl_context *ctx, GLuint flags); 198 199 void 200 vbo_save_SaveFlushVertices(struct gl_context *ctx); 201 202 void 203 vbo_save_NotifyBegin(struct gl_context *ctx, GLenum mode, 204 bool no_current_update); 205 206 void 207 vbo_save_NewList(struct gl_context *ctx, GLuint list, GLenum mode); 208 209 void 210 vbo_save_EndList(struct gl_context *ctx); 211 212 void 213 vbo_save_BeginCallList(struct gl_context *ctx, struct gl_display_list *list); 214 215 void 216 vbo_save_EndCallList(struct gl_context *ctx); 217 218 219 void 220 vbo_delete_minmax_cache(struct gl_buffer_object *bufferObj); 221 222 void 223 vbo_get_minmax_index_mapped(unsigned count, unsigned index_size, 224 unsigned restartIndex, bool restart, 225 const void *indices, 226 unsigned *min_index, unsigned *max_index); 227 228 void 229 vbo_get_minmax_indices(struct gl_context *ctx, const struct _mesa_prim *prim, 230 const struct _mesa_index_buffer *ib, 231 GLuint *min_index, GLuint *max_index, GLuint nr_prims); 232 233 void 234 vbo_sw_primitive_restart(struct gl_context *ctx, 235 const struct _mesa_prim *prim, 236 GLuint nr_prims, 237 const struct _mesa_index_buffer *ib, 238 GLuint num_instances, GLuint base_instance, 239 struct gl_buffer_object *indirect, 240 GLsizeiptr indirect_offset); 241 242 243 const struct gl_array_attributes* 244 _vbo_current_attrib(const struct gl_context *ctx, gl_vert_attrib attr); 245 246 247 const struct gl_vertex_buffer_binding* 248 _vbo_current_binding(const struct gl_context *ctx); 249 250 251 void GLAPIENTRY 252 _es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a); 253 254 void GLAPIENTRY 255 _es_Normal3f(GLfloat x, GLfloat y, GLfloat z); 256 257 void GLAPIENTRY 258 _es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q); 259 260 void GLAPIENTRY 261 _es_Materialfv(GLenum face, GLenum pname, const GLfloat *params); 262 263 void GLAPIENTRY 264 _es_Materialf(GLenum face, GLenum pname, GLfloat param); 265 266 void GLAPIENTRY 267 _es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w); 268 269 void GLAPIENTRY 270 _es_VertexAttrib1f(GLuint indx, GLfloat x); 271 272 void GLAPIENTRY 273 _es_VertexAttrib1fv(GLuint indx, const GLfloat* values); 274 275 void GLAPIENTRY 276 _es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y); 277 278 void GLAPIENTRY 279 _es_VertexAttrib2fv(GLuint indx, const GLfloat* values); 280 281 void GLAPIENTRY 282 _es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z); 283 284 void GLAPIENTRY 285 _es_VertexAttrib3fv(GLuint indx, const GLfloat* values); 286 287 void GLAPIENTRY 288 _es_VertexAttrib4fv(GLuint indx, const GLfloat* values); 289 290 #ifdef __cplusplus 291 } // extern "C" 292 #endif 293 294 #endif 295