src/mesa/main/bufferobj.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  7.6
   4  *
   5  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   6  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the "Software"),
  10  * to deal in the Software without restriction, including without limitation
  11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  12  * and/or sell copies of the Software, and to permit persons to whom the
  13  * Software is furnished to do so, subject to the following conditions:
  14  *
  15  * The above copyright notice and this permission notice shall be included
  16  * in all copies or substantial portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  22  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  23  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26
  27
  28 #ifndef BUFFEROBJ_H
  29 #define BUFFEROBJ_H
  30
  31
  32 #include "context.h"
  33
  34
  35 /*
  36  * Internal functions
  37  */
  38
  39
  40 /** Is the given buffer object currently mapped? */
  41 static INLINE GLboolean
  42 _mesa_bufferobj_mapped(const struct gl_buffer_object *obj)
  43 {
  44    return obj->Pointer != NULL;
  45 }
  46
  47 /**
  48  * Is the given buffer object a user-created buffer object?
  49  * Mesa uses default buffer objects in several places.  Default buffers
  50  * always have Name==0.  User created buffers have Name!=0.
  51  */
  52 static INLINE GLboolean
  53 _mesa_is_bufferobj(const struct gl_buffer_object *obj)
  54 {
  55    return obj->Name != 0;
  56 }
  57
  58
  59 extern void
  60 _mesa_init_buffer_objects( GLcontext *ctx );
  61
  62 extern void
  63 _mesa_update_default_objects_buffer_objects(GLcontext *ctx);
  64
  65
  66 extern struct gl_buffer_object *
  67 _mesa_lookup_bufferobj(GLcontext *ctx, GLuint buffer);
  68
  69 extern void
  70 _mesa_initialize_buffer_object( struct gl_buffer_object *obj,
  71                                 GLuint name, GLenum target );
  72
  73 extern void
  74 _mesa_reference_buffer_object(GLcontext *ctx,
  75                               struct gl_buffer_object **ptr,
  76                               struct gl_buffer_object *bufObj);
  77
  78 extern GLboolean
  79 _mesa_validate_pbo_access(GLuint dimensions,
  80                           const struct gl_pixelstore_attrib *pack,
  81                           GLsizei width, GLsizei height, GLsizei depth,
  82                           GLenum format, GLenum type, const GLvoid *ptr);
  83
  84 extern const GLubyte *
  85 _mesa_map_bitmap_pbo(GLcontext *ctx,
  86                      const struct gl_pixelstore_attrib *unpack,
  87                      const GLubyte *bitmap);
  88
  89 extern void
  90 _mesa_unmap_bitmap_pbo(GLcontext *ctx,
  91                        const struct gl_pixelstore_attrib *unpack);
  92
  93 extern const GLvoid *
  94 _mesa_map_drawpix_pbo(GLcontext *ctx,
  95                       const struct gl_pixelstore_attrib *unpack,
  96                       const GLvoid *pixels);
  97
  98 extern void
  99 _mesa_unmap_drawpix_pbo(GLcontext *ctx,
 100                         const struct gl_pixelstore_attrib *unpack);
 101
 102 extern void *
 103 _mesa_map_readpix_pbo(GLcontext *ctx,
 104                       const struct gl_pixelstore_attrib *pack,
 105                       GLvoid *dest);
 106
 107 extern void
 108 _mesa_unmap_readpix_pbo(GLcontext *ctx,
 109                         const struct gl_pixelstore_attrib *pack);
 110
 111
 112 extern void
 113 _mesa_init_buffer_object_functions(struct dd_function_table *driver);
 114
 115
 116 /*
 117  * API functions
 118  */
 119
 120 extern void GLAPIENTRY
 121 _mesa_BindBufferARB(GLenum target, GLuint buffer);
 122
 123 extern void GLAPIENTRY
 124 _mesa_DeleteBuffersARB(GLsizei n, const GLuint * buffer);
 125
 126 extern void GLAPIENTRY
 127 _mesa_GenBuffersARB(GLsizei n, GLuint * buffer);
 128
 129 extern GLboolean GLAPIENTRY
 130 _mesa_IsBufferARB(GLuint buffer);
 131
 132 extern void GLAPIENTRY
 133 _mesa_BufferDataARB(GLenum target, GLsizeiptrARB size, const GLvoid * data, GLenum usage);
 134
 135 extern void GLAPIENTRY
 136 _mesa_BufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, const GLvoid * data);
 137
 138 extern void GLAPIENTRY
 139 _mesa_GetBufferSubDataARB(GLenum target, GLintptrARB offset, GLsizeiptrARB size, void * data);
 140
 141 extern void * GLAPIENTRY
 142 _mesa_MapBufferARB(GLenum target, GLenum access);
 143
 144 extern GLboolean GLAPIENTRY
 145 _mesa_UnmapBufferARB(GLenum target);
 146
 147 extern void GLAPIENTRY
 148 _mesa_GetBufferParameterivARB(GLenum target, GLenum pname, GLint *params);
 149
 150 extern void GLAPIENTRY
 151 _mesa_GetBufferPointervARB(GLenum target, GLenum pname, GLvoid **params);
 152
 153 extern void GLAPIENTRY
 154 _mesa_CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
 155                         GLintptr readOffset, GLintptr writeOffset,
 156                         GLsizeiptr size);
 157
 158 extern void * GLAPIENTRY
 159 _mesa_MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
 160                      GLbitfield access);
 161
 162 extern void GLAPIENTRY
 163 _mesa_FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);
 164
 165 #endif