1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5 * Copyright (C) 2009 VMware, Inc. 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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 27 28 #ifndef BUFFEROBJ_H 29 #define BUFFEROBJ_H 30 31 #include <stdbool.h> 32 #include "mtypes.h" 33 34 35 /* 36 * Internal functions 37 */ 38 39 40 /** Is the given buffer object currently mapped by the GL user? */ 41 static inline GLboolean 42 _mesa_bufferobj_mapped(const struct gl_buffer_object *obj, 43 gl_map_buffer_index index) 44 { 45 return obj->Mappings[index].Pointer != NULL; 46 } 47 48 /** 49 * Check whether the given buffer object is illegally mapped prior to 50 * drawing from (or reading back to) the buffer. 51 * Note that it's legal for a buffer to be mapped at draw/readback time 52 * if it was mapped persistently (See GL_ARB_buffer_storage spec). 53 * \return true if the buffer is illegally mapped, false otherwise 54 */ 55 static inline bool 56 _mesa_check_disallowed_mapping(const struct gl_buffer_object *obj) 57 { 58 return _mesa_bufferobj_mapped(obj, MAP_USER) && 59 !(obj->Mappings[MAP_USER].AccessFlags & 60 GL_MAP_PERSISTENT_BIT); 61 } 62 63 /** 64 * Is the given buffer object a user-created buffer object? 65 * Mesa uses default buffer objects in several places. Default buffers 66 * always have Name==0. User created buffers have Name!=0. 67 */ 68 static inline GLboolean 69 _mesa_is_bufferobj(const struct gl_buffer_object *obj) 70 { 71 return obj != NULL && obj->Name != 0; 72 } 73 74 75 extern void 76 _mesa_init_buffer_objects(struct gl_context *ctx); 77 78 extern void 79 _mesa_free_buffer_objects(struct gl_context *ctx); 80 81 extern bool 82 _mesa_handle_bind_buffer_gen(struct gl_context *ctx, 83 GLuint buffer, 84 struct gl_buffer_object **buf_handle, 85 const char *caller); 86 87 extern void 88 _mesa_update_default_objects_buffer_objects(struct gl_context *ctx); 89 90 91 extern struct gl_buffer_object * 92 _mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer); 93 94 extern struct gl_buffer_object * 95 _mesa_lookup_bufferobj_locked(struct gl_context *ctx, GLuint buffer); 96 97 extern struct gl_buffer_object * 98 _mesa_lookup_bufferobj_err(struct gl_context *ctx, GLuint buffer, 99 const char *caller); 100 101 extern void 102 _mesa_begin_bufferobj_lookups(struct gl_context *ctx); 103 104 extern void 105 _mesa_end_bufferobj_lookups(struct gl_context *ctx); 106 107 extern struct gl_buffer_object * 108 _mesa_multi_bind_lookup_bufferobj(struct gl_context *ctx, 109 const GLuint *buffers, 110 GLuint index, const char *caller); 111 112 extern void 113 _mesa_initialize_buffer_object(struct gl_context *ctx, 114 struct gl_buffer_object *obj, 115 GLuint name); 116 117 extern void 118 _mesa_delete_buffer_object(struct gl_context *ctx, 119 struct gl_buffer_object *bufObj); 120 121 extern void 122 _mesa_reference_buffer_object_(struct gl_context *ctx, 123 struct gl_buffer_object **ptr, 124 struct gl_buffer_object *bufObj); 125 126 static inline void 127 _mesa_reference_buffer_object(struct gl_context *ctx, 128 struct gl_buffer_object **ptr, 129 struct gl_buffer_object *bufObj) 130 { 131 if (*ptr != bufObj) 132 _mesa_reference_buffer_object_(ctx, ptr, bufObj); 133 } 134 135 extern GLuint 136 _mesa_total_buffer_object_memory(struct gl_context *ctx); 137 138 extern void 139 _mesa_init_buffer_object_functions(struct dd_function_table *driver); 140 141 extern void 142 _mesa_buffer_storage(struct gl_context *ctx, struct gl_buffer_object *bufObj, 143 GLenum target, GLsizeiptr size, const GLvoid *data, 144 GLbitfield flags, const char *func); 145 146 extern void 147 _mesa_buffer_data(struct gl_context *ctx, struct gl_buffer_object *bufObj, 148 GLenum target, GLsizeiptr size, const GLvoid *data, 149 GLenum usage, const char *func); 150 151 extern void 152 _mesa_buffer_sub_data(struct gl_context *ctx, struct gl_buffer_object *bufObj, 153 GLintptr offset, GLsizeiptr size, const GLvoid *data, 154 const char *func); 155 156 extern void 157 _mesa_buffer_unmap_all_mappings(struct gl_context *ctx, 158 struct gl_buffer_object *bufObj); 159 160 extern void 161 _mesa_copy_buffer_sub_data(struct gl_context *ctx, 162 struct gl_buffer_object *src, 163 struct gl_buffer_object *dst, 164 GLintptr readOffset, GLintptr writeOffset, 165 GLsizeiptr size, const char *func); 166 167 extern void * 168 _mesa_map_buffer_range(struct gl_context *ctx, 169 struct gl_buffer_object *bufObj, 170 GLintptr offset, GLsizeiptr length, 171 GLbitfield access, const char *func); 172 173 extern void 174 _mesa_flush_mapped_buffer_range(struct gl_context *ctx, 175 struct gl_buffer_object *bufObj, 176 GLintptr offset, GLsizeiptr length, 177 const char *func); 178 179 extern void 180 _mesa_ClearBufferSubData_sw(struct gl_context *ctx, 181 GLintptr offset, GLsizeiptr size, 182 const GLvoid *clearValue, 183 GLsizeiptr clearValueSize, 184 struct gl_buffer_object *bufObj); 185 186 extern void 187 _mesa_clear_buffer_sub_data(struct gl_context *ctx, 188 struct gl_buffer_object *bufObj, 189 GLenum internalformat, 190 GLintptr offset, GLsizeiptr size, 191 GLenum format, GLenum type, 192 const GLvoid *data, 193 const char *func, bool subdata); 194 195 extern GLboolean 196 _mesa_unmap_buffer(struct gl_context *ctx, struct gl_buffer_object *bufObj, 197 const char *func); 198 199 /* 200 * API functions 201 */ 202 void GLAPIENTRY 203 _mesa_BindBuffer(GLenum target, GLuint buffer); 204 205 void GLAPIENTRY 206 _mesa_DeleteBuffers(GLsizei n, const GLuint * buffer); 207 208 void GLAPIENTRY 209 _mesa_GenBuffers(GLsizei n, GLuint *buffers); 210 211 void GLAPIENTRY 212 _mesa_CreateBuffers(GLsizei n, GLuint *buffers); 213 214 GLboolean GLAPIENTRY 215 _mesa_IsBuffer(GLuint buffer); 216 217 void GLAPIENTRY 218 _mesa_BufferStorage(GLenum target, GLsizeiptr size, const GLvoid *data, 219 GLbitfield flags); 220 221 void GLAPIENTRY 222 _mesa_NamedBufferStorage(GLuint buffer, GLsizeiptr size, const GLvoid *data, 223 GLbitfield flags); 224 225 void GLAPIENTRY 226 _mesa_BufferData(GLenum target, GLsizeiptr size, 227 const GLvoid *data, GLenum usage); 228 229 void GLAPIENTRY 230 _mesa_NamedBufferData(GLuint buffer, GLsizeiptr size, 231 const GLvoid *data, GLenum usage); 232 233 void GLAPIENTRY 234 _mesa_BufferSubData(GLenum target, GLintptr offset, 235 GLsizeiptr size, const GLvoid *data); 236 237 void GLAPIENTRY 238 _mesa_NamedBufferSubData(GLuint buffer, GLintptr offset, 239 GLsizeiptr size, const GLvoid *data); 240 241 void GLAPIENTRY 242 _mesa_GetBufferSubData(GLenum target, GLintptr offset, 243 GLsizeiptr size, GLvoid *data); 244 245 void GLAPIENTRY 246 _mesa_GetNamedBufferSubData(GLuint buffer, GLintptr offset, 247 GLsizeiptr size, GLvoid *data); 248 249 void GLAPIENTRY 250 _mesa_ClearBufferData(GLenum target, GLenum internalformat, 251 GLenum format, GLenum type, 252 const GLvoid *data); 253 254 void GLAPIENTRY 255 _mesa_ClearNamedBufferData(GLuint buffer, GLenum internalformat, 256 GLenum format, GLenum type, 257 const GLvoid *data); 258 259 void GLAPIENTRY 260 _mesa_ClearBufferSubData(GLenum target, GLenum internalformat, 261 GLintptr offset, GLsizeiptr size, 262 GLenum format, GLenum type, 263 const GLvoid *data); 264 265 void GLAPIENTRY 266 _mesa_ClearNamedBufferSubData(GLuint buffer, GLenum internalformat, 267 GLintptr offset, GLsizeiptr size, 268 GLenum format, GLenum type, 269 const GLvoid *data); 270 271 GLboolean GLAPIENTRY 272 _mesa_UnmapBuffer(GLenum target); 273 274 GLboolean GLAPIENTRY 275 _mesa_UnmapNamedBuffer(GLuint buffer); 276 277 void GLAPIENTRY 278 _mesa_GetBufferParameteriv(GLenum target, GLenum pname, GLint *params); 279 280 void GLAPIENTRY 281 _mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params); 282 283 void GLAPIENTRY 284 _mesa_GetNamedBufferParameteriv(GLuint buffer, GLenum pname, GLint *params); 285 286 void GLAPIENTRY 287 _mesa_GetNamedBufferParameteri64v(GLuint buffer, GLenum pname, 288 GLint64 *params); 289 290 void GLAPIENTRY 291 _mesa_GetBufferPointerv(GLenum target, GLenum pname, GLvoid **params); 292 293 void GLAPIENTRY 294 _mesa_GetNamedBufferPointerv(GLuint buffer, GLenum pname, GLvoid **params); 295 296 297 void GLAPIENTRY 298 _mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget, 299 GLintptr readOffset, GLintptr writeOffset, 300 GLsizeiptr size); 301 302 void GLAPIENTRY 303 _mesa_CopyNamedBufferSubData(GLuint readBuffer, GLuint writeBuffer, 304 GLintptr readOffset, GLintptr writeOffset, 305 GLsizeiptr size); 306 307 void * GLAPIENTRY 308 _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, 309 GLbitfield access); 310 311 void * GLAPIENTRY 312 _mesa_MapNamedBufferRange(GLuint buffer, GLintptr offset, GLsizeiptr length, 313 GLbitfield access); 314 315 void * GLAPIENTRY 316 _mesa_MapBuffer(GLenum target, GLenum access); 317 318 void * GLAPIENTRY 319 _mesa_MapNamedBuffer(GLuint buffer, GLenum access); 320 321 322 void GLAPIENTRY 323 _mesa_FlushMappedBufferRange(GLenum target, 324 GLintptr offset, GLsizeiptr length); 325 326 void GLAPIENTRY 327 _mesa_FlushMappedNamedBufferRange(GLuint buffer, GLintptr offset, 328 GLsizeiptr length); 329 330 void GLAPIENTRY 331 _mesa_BindBufferRange(GLenum target, GLuint index, 332 GLuint buffer, GLintptr offset, GLsizeiptr size); 333 334 void GLAPIENTRY 335 _mesa_BindBufferBase(GLenum target, GLuint index, GLuint buffer); 336 337 void GLAPIENTRY 338 _mesa_BindBuffersRange(GLenum target, GLuint first, GLsizei count, 339 const GLuint *buffers, 340 const GLintptr *offsets, const GLsizeiptr *sizes); 341 void GLAPIENTRY 342 _mesa_BindBuffersBase(GLenum target, GLuint first, GLsizei count, 343 const GLuint *buffers); 344 void GLAPIENTRY 345 _mesa_InvalidateBufferSubData(GLuint buffer, GLintptr offset, 346 GLsizeiptr length); 347 348 void GLAPIENTRY 349 _mesa_InvalidateBufferData(GLuint buffer); 350 351 352 #endif 353
