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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"

#include "bufferobj.h"

struct gl_client_array;

struct gl_context;

/**

 * Returns a pointer to the vertex attribute data in a client array,

 * or the offset into the vertex buffer for an array that resides in

 * a vertex buffer.

 */

static inline const GLubyte *

_mesa_vertex_attrib_address(const struct gl_vertex_attrib_array *array,

                            const struct gl_vertex_buffer_binding *binding)

{

   if (_mesa_is_bufferobj(binding->BufferObj))

      return (const GLubyte *) (binding->Offset + array->RelativeOffset);

   else

      return array->Ptr;

}

/**

 * Sets the fields in a gl_client_array to values derived from a

 * gl_vertex_attrib_array and a gl_vertex_buffer_binding.

 */

static inline void

_mesa_update_client_array(struct gl_context *ctx,

                          struct gl_client_array *dst,

                          const struct gl_vertex_attrib_array *src,

                          const struct gl_vertex_buffer_binding *binding)

{

   dst->Size = src->Size;

   dst->Type = src->Type;

   dst->Format = src->Format;

   dst->Stride = src->Stride;

   dst->StrideB = binding->Stride;

   dst->Ptr = _mesa_vertex_attrib_address(src, binding);

   dst->Enabled = src->Enabled;

   dst->Normalized = src->Normalized;

   dst->Integer = src->Integer;

   dst->Doubles = src->Doubles;

   dst->InstanceDivisor = binding->InstanceDivisor;

   dst->_ElementSize = src->_ElementSize;

   _mesa_reference_buffer_object(ctx, &dst->BufferObj, binding->BufferObj);

}

static inline bool

_mesa_attr_zero_aliases_vertex(struct gl_context *ctx)

{

   const bool is_forward_compatible_context =

      ctx->Const.ContextFlags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;

   /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES

    * 2.0.  Note that we cannot just check for API_OPENGL_COMPAT here because

    * that will erroneously allow this usage in a 3.0 forward-compatible

    * context too.

    */

   return (ctx->API == API_OPENGLES

           || (ctx->API == API_OPENGL_COMPAT

               && !is_forward_compatible_context));

}

extern void GLAPIENTRY

_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride,

                    const GLvoid *ptr);

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_VertexAttribLPointer(GLuint index, GLint size, GLenum type,

                           GLsizei stride, const GLvoid *pointer);

extern void GLAPIENTRY

_mesa_EnableVertexAttribArray(GLuint index);

extern void GLAPIENTRY

_mesa_EnableVertexArrayAttrib(GLuint vaobj, GLuint index);

extern void GLAPIENTRY

_mesa_DisableVertexAttribArray(GLuint index);

extern void GLAPIENTRY

_mesa_DisableVertexArrayAttrib(GLuint vaobj, 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_GetVertexAttribLdv(GLuint index, GLenum pname, GLdouble *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);

void GLAPIENTRY

_mesa_GetVertexArrayIndexediv(GLuint vaobj, GLuint index,

                              GLenum pname, GLint *param);

void GLAPIENTRY

_mesa_GetVertexArrayIndexed64iv(GLuint vaobj, GLuint index,

                                GLenum pname, GLint64 *param);

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_DrawArraysInstanced(GLenum mode, GLint first, GLsizei count,

                          GLsizei primcount);

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 GLAPIENTRY

_mesa_BindVertexBuffer(GLuint bindingIndex, GLuint buffer, GLintptr offset,

                       GLsizei stride);

extern void GLAPIENTRY

_mesa_VertexArrayVertexBuffer(GLuint vaobj, GLuint bindingIndex, GLuint buffer,

                              GLintptr offset, GLsizei stride);

extern void GLAPIENTRY

_mesa_BindVertexBuffers(GLuint first, GLsizei count, const GLuint *buffers,

                        const GLintptr *offsets, const GLsizei *strides);

extern void GLAPIENTRY

_mesa_VertexArrayVertexBuffers(GLuint vaobj, GLuint first, GLsizei count,

                               const GLuint *buffers,

                               const GLintptr *offsets, const GLsizei *strides);

extern void GLAPIENTRY

_mesa_VertexAttribFormat(GLuint attribIndex, GLint size, GLenum type,

                         GLboolean normalized, GLuint relativeOffset);

extern void GLAPIENTRY

_mesa_VertexArrayAttribFormat(GLuint vaobj, GLuint attribIndex, GLint size,

                              GLenum type, GLboolean normalized,

                              GLuint relativeOffset);

extern void GLAPIENTRY

_mesa_VertexAttribIFormat(GLuint attribIndex, GLint size, GLenum type,

                          GLuint relativeOffset);

extern void GLAPIENTRY

_mesa_VertexArrayAttribIFormat(GLuint vaobj, GLuint attribIndex,

                               GLint size, GLenum type,

                               GLuint relativeOffset);

extern void GLAPIENTRY

_mesa_VertexAttribLFormat(GLuint attribIndex, GLint size, GLenum type,

                          GLuint relativeOffset);

extern void GLAPIENTRY

_mesa_VertexArrayAttribLFormat(GLuint vaobj, GLuint attribIndex,

                               GLint size, GLenum type,

                               GLuint relativeOffset);

extern void GLAPIENTRY

_mesa_VertexAttribBinding(GLuint attribIndex, GLuint bindingIndex);

extern void GLAPIENTRY

_mesa_VertexArrayAttribBinding(GLuint vaobj, GLuint attribIndex,

                               GLuint bindingIndex);

extern void GLAPIENTRY

_mesa_VertexBindingDivisor(GLuint bindingIndex, GLuint divisor);

extern void GLAPIENTRY

_mesa_VertexArrayBindingDivisor(GLuint vaobj, GLuint bindingIndex, GLuint divisor);

extern void

_mesa_copy_client_array(struct gl_context *ctx,

                        struct gl_client_array *dst,

                        struct gl_client_array *src);

extern void

_mesa_copy_vertex_attrib_array(struct gl_context *ctx,

                               struct gl_vertex_attrib_array *dst,

                               const struct gl_vertex_attrib_array *src);

extern void

_mesa_copy_vertex_buffer_binding(struct gl_context *ctx,

                                 struct gl_vertex_buffer_binding *dst,

                                 const struct gl_vertex_buffer_binding *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