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/*

 * Mesa 3-D graphics library

 *

 * 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

 * THE AUTHORS OR COPYRIGHT HOLDERS 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 VARRAY_H

#define VARRAY_H

#include "glheader.h"

struct gl_client_array;

struct gl_context;

/**

 * Compute the index of the last array element that can be safely accessed in

 * a vertex array.  We can really only do this when the array lives in a VBO.

 * The array->_MaxElement field will be updated.

 * Later in glDrawArrays/Elements/etc we can do some bounds checking.

 */

static inline void

_mesa_update_array_max_element(struct gl_client_array *array)

{

   assert(array->Enabled);

   if (array->BufferObj->Name) {

      GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr;

      GLsizeiptrARB bufSize = (GLsizeiptrARB) array->BufferObj->Size;

      if (offset < bufSize) {

	 array->_MaxElement = (bufSize - offset + array->StrideB

                               - array->_ElementSize) / array->StrideB;

      }

      else {

	 array->_MaxElement = 0;

      }

   }

   else {

      /* user-space array, no idea how big it is */

      array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */

   }

}

extern void GLAPIENTRY

_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride,

                    const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_UnlockArraysEXT( void );

extern void GLAPIENTRY

_mesa_LockArraysEXT(GLint first, GLsizei count);

extern void GLAPIENTRY

_mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,

                      const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,

                       GLsizei count, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,

                       const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,

                      const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,

                      const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,

                         GLsizei count, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr);

extern void GLAPIENTRY

_mesa_FogCoordPointer(GLenum type, GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_SecondaryColorPointer(GLint size, GLenum type,

			       GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_PointSizePointerOES(GLenum type, GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_VertexAttribPointer(GLuint index, GLint size, GLenum type,

                             GLboolean normalized, GLsizei stride,

                             const GLvoid *pointer);

void GLAPIENTRY

_mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,

                           GLsizei stride, const GLvoid *ptr);

extern void GLAPIENTRY

_mesa_EnableVertexAttribArray(GLuint index);

extern void GLAPIENTRY

_mesa_DisableVertexAttribArray(GLuint index);

extern void GLAPIENTRY

_mesa_GetVertexAttribdv(GLuint index, GLenum pname, GLdouble *params);

extern void GLAPIENTRY

_mesa_GetVertexAttribfv(GLuint index, GLenum pname, GLfloat *params);

extern void GLAPIENTRY

_mesa_GetVertexAttribiv(GLuint index, GLenum pname, GLint *params);

extern void GLAPIENTRY

_mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params);

extern void GLAPIENTRY

_mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params);

extern void GLAPIENTRY

_mesa_GetVertexAttribPointerv(GLuint index, GLenum pname, GLvoid **pointer);

extern void GLAPIENTRY

_mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer);

extern void GLAPIENTRY

_mesa_MultiDrawArrays( GLenum mode, const GLint *first,

                          const GLsizei *count, GLsizei primcount );

extern void GLAPIENTRY

_mesa_MultiDrawElementsEXT( GLenum mode, const GLsizei *count, GLenum type,

                            const GLvoid **indices, GLsizei primcount );

extern void GLAPIENTRY

_mesa_MultiDrawElementsBaseVertex( GLenum mode,

				   const GLsizei *count, GLenum type,

				   const GLvoid **indices, GLsizei primcount,

				   const GLint *basevertex);

extern void GLAPIENTRY

_mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,

			      const GLsizei * count,

			      GLsizei primcount, GLint modestride );

extern void GLAPIENTRY

_mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,

				GLenum type, const GLvoid * const * indices,

				GLsizei primcount, GLint modestride );

extern void GLAPIENTRY

_mesa_LockArraysEXT(GLint first, GLsizei count);

extern void GLAPIENTRY

_mesa_UnlockArraysEXT( void );

extern void GLAPIENTRY

_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count);

extern void GLAPIENTRY

_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,

                   const GLvoid *indices);

extern void GLAPIENTRY

_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,

                        GLenum type, const GLvoid *indices);

extern void GLAPIENTRY

_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,

			     const GLvoid *indices, GLint basevertex);

extern void GLAPIENTRY

_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end,

				  GLsizei count, GLenum type,

				  const GLvoid *indices,

				  GLint basevertex);

extern void GLAPIENTRY

_mesa_DrawTransformFeedback(GLenum mode, GLuint name);

extern void GLAPIENTRY

_mesa_PrimitiveRestartIndex(GLuint index);

extern void GLAPIENTRY

_mesa_VertexAttribDivisor(GLuint index, GLuint divisor);

extern unsigned

_mesa_primitive_restart_index(const struct gl_context *ctx, GLenum ib_type);

extern void

_mesa_copy_client_array(struct gl_context *ctx,

                        struct gl_client_array *dst,

                        struct gl_client_array *src);

extern void

_mesa_print_arrays(struct gl_context *ctx);

extern void

_mesa_init_varray( struct gl_context * ctx );

extern void

_mesa_free_varray_data(struct gl_context *ctx);

#endif