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/*

 * Mesa 3-D graphics library

 * Version:  7.6

 *

 * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

 * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 */

#ifndef BUFFEROBJ_H

#define BUFFEROBJ_H

#include "mtypes.h"

/*

 * Internal functions

 */

/** Is the given buffer object currently mapped? */

static INLINE GLboolean

_mesa_bufferobj_mapped(const struct gl_buffer_object *obj)

{

   return obj->Pointer != NULL;

}

/**

 * Is the given buffer object a user-created buffer object?

 * Mesa uses default buffer objects in several places.  Default buffers

 * always have Name==0.  User created buffers have Name!=0.

 */

static INLINE GLboolean

_mesa_is_bufferobj(const struct gl_buffer_object *obj)

{

   return obj->Name != 0;

}

extern void

_mesa_init_buffer_objects( struct gl_context *ctx );

extern void

_mesa_free_buffer_objects( struct gl_context *ctx );

extern void

_mesa_update_default_objects_buffer_objects(struct gl_context *ctx);

extern struct gl_buffer_object *

_mesa_lookup_bufferobj(struct gl_context *ctx, GLuint buffer);

extern void

_mesa_initialize_buffer_object( struct gl_buffer_object *obj,

				GLuint name, GLenum target );

extern void

_mesa_reference_buffer_object(struct gl_context *ctx,

                              struct gl_buffer_object **ptr,

                              struct gl_buffer_object *bufObj);

extern GLboolean

_mesa_validate_pbo_access(GLuint dimensions,

                          const struct gl_pixelstore_attrib *pack,

                          GLsizei width, GLsizei height, GLsizei depth,

                          GLenum format, GLenum type, const GLvoid *ptr);

extern const GLvoid *

_mesa_map_pbo_source(struct gl_context *ctx,

                     const struct gl_pixelstore_attrib *unpack,

                     const GLvoid *src);

extern const GLvoid *

_mesa_map_validate_pbo_source(struct gl_context *ctx,

                              GLuint dimensions,

                              const struct gl_pixelstore_attrib *unpack,

                              GLsizei width, GLsizei height, GLsizei depth,

                              GLenum format, GLenum type, const GLvoid *ptr,

                              const char *where);

extern void

_mesa_unmap_pbo_source(struct gl_context *ctx,

                       const struct gl_pixelstore_attrib *unpack);

extern void *

_mesa_map_pbo_dest(struct gl_context *ctx,

                   const struct gl_pixelstore_attrib *pack,

                   GLvoid *dest);

extern GLvoid *

_mesa_map_validate_pbo_dest(struct gl_context *ctx,

                            GLuint dimensions,

                            const struct gl_pixelstore_attrib *unpack,

                            GLsizei width, GLsizei height, GLsizei depth,

                            GLenum format, GLenum type, GLvoid *ptr,

                            const char *where);

extern void

_mesa_unmap_pbo_dest(struct gl_context *ctx,

                     const struct gl_pixelstore_attrib *pack);

extern void

_mesa_init_buffer_object_functions(struct dd_function_table *driver);

/*

 * API functions

 */

extern void GLAPIENTRY

_mesa_BindBufferARB(GLenum target, GLuint buffer);

extern void GLAPIENTRY

_mesa_DeleteBuffersARB(GLsizei n, const GLuint * buffer);

extern void GLAPIENTRY

_mesa_GenBuffersARB(GLsizei n, GLuint * buffer);

extern GLboolean GLAPIENTRY

_mesa_IsBufferARB(GLuint buffer);

extern void GLAPIENTRY

_mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, const GLvoid * data, GLenum usage);

extern void GLAPIENTRY

_mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid * data);

extern void GLAPIENTRY

_mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, void * data);

extern void * GLAPIENTRY

_mesa_MapBufferARB(GLenum target, GLenum access);

extern GLboolean GLAPIENTRY

_mesa_UnmapBufferARB(GLenum target);

extern void GLAPIENTRY

_mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params);

extern void GLAPIENTRY

_mesa_GetBufferParameteri64v(GLenum target, GLenum pname, GLint64 *params);

extern void GLAPIENTRY

_mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params);

extern void GLAPIENTRY

_mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,

                        GLintptr readOffset, GLintptr writeOffset,

                        GLsizeiptr size);

extern void * GLAPIENTRY

_mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,

                     GLbitfield access);

extern void GLAPIENTRY

_mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);

#if FEATURE_APPLE_object_purgeable

extern GLenum GLAPIENTRY

_mesa_ObjectPurgeableAPPLE(GLenum objectType, GLuint name, GLenum option);

extern GLenum GLAPIENTRY

_mesa_ObjectUnpurgeableAPPLE(GLenum objectType, GLuint name, GLenum option);

extern void GLAPIENTRY

_mesa_GetObjectParameterivAPPLE(GLenum objectType, GLuint name, GLenum pname, GLint* params);

#endif

#endif