Subversion Repositories Kolibri OS

/**************************************************************************

Copyright 2002-2008 Tungsten Graphics Inc., Cedar Park, Texas.

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

on the rights to use, copy, modify, merge, publish, distribute, sub

license, 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 (including the next

paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL

TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS 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.

**************************************************************************/

/*

 * Authors:

 *   Keith Whitwell 

 */

#include "main/glheader.h"

#include "main/bufferobj.h"

#include "main/context.h"

#include "main/macros.h"

#include "main/vtxfmt.h"

#include "main/dlist.h"

#include "main/eval.h"

#include "main/state.h"

#include "main/light.h"

#include "main/api_arrayelt.h"

#include "main/api_noop.h"

#include "main/dispatch.h"

#include "vbo_context.h"

#ifdef ERROR

#undef ERROR

#endif

/** ID/name for immediate-mode VBO */

#define IMM_BUFFER_NAME 0xaabbccdd

static void reset_attrfv( struct vbo_exec_context *exec );

/**

 * Close off the last primitive, execute the buffer, restart the

 * primitive.

 */

static void vbo_exec_wrap_buffers( struct vbo_exec_context *exec )

{

   if (exec->vtx.prim_count == 0) {

      exec->vtx.copied.nr = 0;

      exec->vtx.vert_count = 0;

      exec->vtx.buffer_ptr = exec->vtx.buffer_map;

   }

   else {

      GLuint last_begin = exec->vtx.prim[exec->vtx.prim_count-1].begin;

      GLuint last_count;

      if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {

	 GLint i = exec->vtx.prim_count - 1;

	 assert(i >= 0);

	 exec->vtx.prim[i].count = (exec->vtx.vert_count -

				    exec->vtx.prim[i].start);

      }

      last_count = exec->vtx.prim[exec->vtx.prim_count-1].count;

      /* Execute the buffer and save copied vertices.

       */

      if (exec->vtx.vert_count)

	 vbo_exec_vtx_flush( exec, GL_FALSE );

      else {

	 exec->vtx.prim_count = 0;

	 exec->vtx.copied.nr = 0;

      }

      /* Emit a glBegin to start the new list.

       */

      assert(exec->vtx.prim_count == 0);

      if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {

	 exec->vtx.prim[0].mode = exec->ctx->Driver.CurrentExecPrimitive;

	 exec->vtx.prim[0].start = 0;

	 exec->vtx.prim[0].count = 0;

	 exec->vtx.prim_count++;

	 if (exec->vtx.copied.nr == last_count)

	    exec->vtx.prim[0].begin = last_begin;

      }

   }

}

/**

 * Deal with buffer wrapping where provoked by the vertex buffer

 * filling up, as opposed to upgrade_vertex().

 */

void vbo_exec_vtx_wrap( struct vbo_exec_context *exec )

{

   GLfloat *data = exec->vtx.copied.buffer;

   GLuint i;

   /* Run pipeline on current vertices, copy wrapped vertices

    * to exec->vtx.copied.

    */

   vbo_exec_wrap_buffers( exec );

   /* Copy stored stored vertices to start of new list.

    */

   assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr);

   for (i = 0 ; i < exec->vtx.copied.nr ; i++) {

      memcpy( exec->vtx.buffer_ptr, data,

	      exec->vtx.vertex_size * sizeof(GLfloat));

      exec->vtx.buffer_ptr += exec->vtx.vertex_size;

      data += exec->vtx.vertex_size;

      exec->vtx.vert_count++;

   }

   exec->vtx.copied.nr = 0;

}

/**

 * Copy the active vertex's values to the ctx->Current fields.

 */

static void vbo_exec_copy_to_current( struct vbo_exec_context *exec )

{

   struct gl_context *ctx = exec->ctx;

   struct vbo_context *vbo = vbo_context(ctx);

   GLuint i;

   for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) {

      if (exec->vtx.attrsz[i]) {

         /* Note: the exec->vtx.current[i] pointers point into the

          * ctx->Current.Attrib and ctx->Light.Material.Attrib arrays.

          */

	 GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;

         GLfloat tmp[4];

         COPY_CLEAN_4V(tmp,

                       exec->vtx.attrsz[i],

                       exec->vtx.attrptr[i]);

         if (memcmp(current, tmp, sizeof(tmp)) != 0)

         {

            memcpy(current, tmp, sizeof(tmp));

            /* Given that we explicitly state size here, there is no need

             * for the COPY_CLEAN above, could just copy 16 bytes and be

             * done.  The only problem is when Mesa accesses ctx->Current

             * directly.

             */

            vbo->currval[i].Size = exec->vtx.attrsz[i];

            /* This triggers rather too much recalculation of Mesa state

             * that doesn't get used (eg light positions).

             */

            if (i >= VBO_ATTRIB_MAT_FRONT_AMBIENT &&

                i <= VBO_ATTRIB_MAT_BACK_INDEXES)

               ctx->NewState |= _NEW_LIGHT;

            ctx->NewState |= _NEW_CURRENT_ATTRIB;

         }

      }

   }

   /* Colormaterial -- this kindof sucks.

    */

   if (ctx->Light.ColorMaterialEnabled &&

       exec->vtx.attrsz[VBO_ATTRIB_COLOR0]) {

      _mesa_update_color_material(ctx,

				  ctx->Current.Attrib[VBO_ATTRIB_COLOR0]);

   }

}

static void vbo_exec_copy_from_current( struct vbo_exec_context *exec )

{

   struct gl_context *ctx = exec->ctx;

   struct vbo_context *vbo = vbo_context(ctx);

   GLint i;

   for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) {

      const GLfloat *current = (GLfloat *)vbo->currval[i].Ptr;

      switch (exec->vtx.attrsz[i]) {

      case 4: exec->vtx.attrptr[i][3] = current[3];

      case 3: exec->vtx.attrptr[i][2] = current[2];

      case 2: exec->vtx.attrptr[i][1] = current[1];

      case 1: exec->vtx.attrptr[i][0] = current[0];

	 break;

      }

   }

}

/**

 * Flush existing data, set new attrib size, replay copied vertices.

 */

static void vbo_exec_wrap_upgrade_vertex( struct vbo_exec_context *exec,

					  GLuint attr,

					  GLuint newsz )

{

   struct gl_context *ctx = exec->ctx;

   struct vbo_context *vbo = vbo_context(ctx);

   GLint lastcount = exec->vtx.vert_count;

   GLfloat *old_attrptr[VBO_ATTRIB_MAX];

   GLuint old_vtx_size = exec->vtx.vertex_size;

   GLuint oldsz = exec->vtx.attrsz[attr];

   GLuint i;

   /* Run pipeline on current vertices, copy wrapped vertices

    * to exec->vtx.copied.

    */

   vbo_exec_wrap_buffers( exec );

   if (unlikely(exec->vtx.copied.nr)) {

      /* We're in the middle of a primitive, keep the old vertex

       * format around to be able to translate the copied vertices to

       * the new format.

       */

      memcpy(old_attrptr, exec->vtx.attrptr, sizeof(old_attrptr));

   }

   if (unlikely(oldsz)) {

      /* Do a COPY_TO_CURRENT to ensure back-copying works for the

       * case when the attribute already exists in the vertex and is

       * having its size increased.

       */

      vbo_exec_copy_to_current( exec );

   }

   /* Heuristic: Attempt to isolate attributes received outside

    * begin/end so that they don't bloat the vertices.

    */

   if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END &&

       !oldsz && lastcount > 8 && exec->vtx.vertex_size) {

      vbo_exec_copy_to_current( exec );

      reset_attrfv( exec );

   }

   /* Fix up sizes:

    */

   exec->vtx.attrsz[attr] = newsz;

   exec->vtx.vertex_size += newsz - oldsz;

   exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) /

                         (exec->vtx.vertex_size * sizeof(GLfloat)));

   exec->vtx.vert_count = 0;

   exec->vtx.buffer_ptr = exec->vtx.buffer_map;

   if (unlikely(oldsz)) {

      /* Size changed, recalculate all the attrptr[] values

       */

      GLfloat *tmp = exec->vtx.vertex;

      for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {

	 if (exec->vtx.attrsz[i]) {

	    exec->vtx.attrptr[i] = tmp;

	    tmp += exec->vtx.attrsz[i];

	 }

	 else

	    exec->vtx.attrptr[i] = NULL; /* will not be dereferenced */

      }

      /* Copy from current to repopulate the vertex with correct

       * values.

       */

      vbo_exec_copy_from_current( exec );

   } else {

      /* Just have to append the new attribute at the end */

      exec->vtx.attrptr[attr] = exec->vtx.vertex +

	 exec->vtx.vertex_size - newsz;

   }

   /* Replay stored vertices to translate them

    * to new format here.

    *

    * -- No need to replay - just copy piecewise

    */

   if (unlikely(exec->vtx.copied.nr)) {

      GLfloat *data = exec->vtx.copied.buffer;

      GLfloat *dest = exec->vtx.buffer_ptr;

      GLuint j;

      assert(exec->vtx.buffer_ptr == exec->vtx.buffer_map);

      for (i = 0 ; i < exec->vtx.copied.nr ; i++) {

	 for (j = 0 ; j < VBO_ATTRIB_MAX ; j++) {

	    GLuint sz = exec->vtx.attrsz[j];

	    if (sz) {

	       GLint old_offset = old_attrptr[j] - exec->vtx.vertex;

	       GLint new_offset = exec->vtx.attrptr[j] - exec->vtx.vertex;

	       if (j == attr) {

		  if (oldsz) {

		     GLfloat tmp[4];

		     COPY_CLEAN_4V(tmp, oldsz, data + old_offset);

		     COPY_SZ_4V(dest + new_offset, newsz, tmp);

		  } else {

		     GLfloat *current = (GLfloat *)vbo->currval[j].Ptr;

		     COPY_SZ_4V(dest + new_offset, sz, current);

		  }

	       }

	       else {

		  COPY_SZ_4V(dest + new_offset, sz, data + old_offset);

	       }

	    }

	 }

	 data += old_vtx_size;

	 dest += exec->vtx.vertex_size;

      }

      exec->vtx.buffer_ptr = dest;

      exec->vtx.vert_count += exec->vtx.copied.nr;

      exec->vtx.copied.nr = 0;

   }

}

static void vbo_exec_fixup_vertex( struct gl_context *ctx,

				   GLuint attr, GLuint sz )

{

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

   int i;

   if (sz > exec->vtx.attrsz[attr]) {

      /* New size is larger.  Need to flush existing vertices and get

       * an enlarged vertex format.

       */

      vbo_exec_wrap_upgrade_vertex( exec, attr, sz );

   }

   else if (sz < exec->vtx.active_sz[attr]) {

      static const GLfloat id[4] = { 0, 0, 0, 1 };

      /* New size is smaller - just need to fill in some

       * zeros.  Don't need to flush or wrap.

       */

      for (i = sz ; i <= exec->vtx.attrsz[attr] ; i++)

	 exec->vtx.attrptr[attr][i-1] = id[i-1];

   }

   exec->vtx.active_sz[attr] = sz;

   /* Does setting NeedFlush belong here?  Necessitates resetting

    * vtxfmt on each flush (otherwise flags won't get reset

    * afterwards).

    */

   if (attr == 0)

      exec->ctx->Driver.NeedFlush |= FLUSH_STORED_VERTICES;

}

/*

 */

#define ATTR( A, N, V0, V1, V2, V3 )				\

do {								\

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;	\

									\

   if (unlikely(!(exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT))) \

      ctx->Driver.BeginVertices( ctx );                                 \

   if (unlikely(exec->vtx.active_sz[A] != N))				\

      vbo_exec_fixup_vertex(ctx, A, N);					\

   									\

   {								\

      GLfloat *dest = exec->vtx.attrptr[A];			\

      if (N>0) dest[0] = V0;					\

      if (N>1) dest[1] = V1;					\

      if (N>2) dest[2] = V2;					\

      if (N>3) dest[3] = V3;					\

   }								\

								\

   if ((A) == 0) {						\

      GLuint i;							\

								\

      for (i = 0; i < exec->vtx.vertex_size; i++)		\

	 exec->vtx.buffer_ptr[i] = exec->vtx.vertex[i];		\

								\

      exec->vtx.buffer_ptr += exec->vtx.vertex_size;			\

      exec->ctx->Driver.NeedFlush |= FLUSH_STORED_VERTICES;	\

								\

      if (++exec->vtx.vert_count >= exec->vtx.max_vert)		\

	 vbo_exec_vtx_wrap( exec );				\

   }								\

} while (0)

#define ERROR() _mesa_error( ctx, GL_INVALID_ENUM, __FUNCTION__ )

#define TAG(x) vbo_##x

#include "vbo_attrib_tmp.h"

#if FEATURE_beginend

#if FEATURE_evaluators

static void GLAPIENTRY vbo_exec_EvalCoord1f( GLfloat u )

{

   GET_CURRENT_CONTEXT( ctx );

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

   {

      GLint i;

      if (exec->eval.recalculate_maps)

	 vbo_exec_eval_update( exec );

      for (i = 0; i <= VBO_ATTRIB_TEX7; i++) {

	 if (exec->eval.map1[i].map)

	    if (exec->vtx.active_sz[i] != exec->eval.map1[i].sz)

	       vbo_exec_fixup_vertex( ctx, i, exec->eval.map1[i].sz );

      }

   }

   memcpy( exec->vtx.copied.buffer, exec->vtx.vertex,

           exec->vtx.vertex_size * sizeof(GLfloat));

   vbo_exec_do_EvalCoord1f( exec, u );

   memcpy( exec->vtx.vertex, exec->vtx.copied.buffer,

           exec->vtx.vertex_size * sizeof(GLfloat));

}

static void GLAPIENTRY vbo_exec_EvalCoord2f( GLfloat u, GLfloat v )

{

   GET_CURRENT_CONTEXT( ctx );

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

   {

      GLint i;

      if (exec->eval.recalculate_maps)

	 vbo_exec_eval_update( exec );

      for (i = 0; i <= VBO_ATTRIB_TEX7; i++) {

	 if (exec->eval.map2[i].map)

	    if (exec->vtx.active_sz[i] != exec->eval.map2[i].sz)

	       vbo_exec_fixup_vertex( ctx, i, exec->eval.map2[i].sz );

      }

      if (ctx->Eval.AutoNormal)

	 if (exec->vtx.active_sz[VBO_ATTRIB_NORMAL] != 3)

	    vbo_exec_fixup_vertex( ctx, VBO_ATTRIB_NORMAL, 3 );

   }

   memcpy( exec->vtx.copied.buffer, exec->vtx.vertex,

           exec->vtx.vertex_size * sizeof(GLfloat));

   vbo_exec_do_EvalCoord2f( exec, u, v );

   memcpy( exec->vtx.vertex, exec->vtx.copied.buffer,

           exec->vtx.vertex_size * sizeof(GLfloat));

}

static void GLAPIENTRY vbo_exec_EvalCoord1fv( const GLfloat *u )

{

   vbo_exec_EvalCoord1f( u[0] );

}

static void GLAPIENTRY vbo_exec_EvalCoord2fv( const GLfloat *u )

{

   vbo_exec_EvalCoord2f( u[0], u[1] );

}

static void GLAPIENTRY vbo_exec_EvalPoint1( GLint i )

{

   GET_CURRENT_CONTEXT( ctx );

   GLfloat du = ((ctx->Eval.MapGrid1u2 - ctx->Eval.MapGrid1u1) /

		 (GLfloat) ctx->Eval.MapGrid1un);

   GLfloat u = i * du + ctx->Eval.MapGrid1u1;

   vbo_exec_EvalCoord1f( u );

}

static void GLAPIENTRY vbo_exec_EvalPoint2( GLint i, GLint j )

{

   GET_CURRENT_CONTEXT( ctx );

   GLfloat du = ((ctx->Eval.MapGrid2u2 - ctx->Eval.MapGrid2u1) /

		 (GLfloat) ctx->Eval.MapGrid2un);

   GLfloat dv = ((ctx->Eval.MapGrid2v2 - ctx->Eval.MapGrid2v1) /

		 (GLfloat) ctx->Eval.MapGrid2vn);

   GLfloat u = i * du + ctx->Eval.MapGrid2u1;

   GLfloat v = j * dv + ctx->Eval.MapGrid2v1;

   vbo_exec_EvalCoord2f( u, v );

}

/* use noop eval mesh */

#define vbo_exec_EvalMesh1 _mesa_noop_EvalMesh1

#define vbo_exec_EvalMesh2 _mesa_noop_EvalMesh2

#endif /* FEATURE_evaluators */

/**

 * Called via glBegin.

 */

static void GLAPIENTRY vbo_exec_Begin( GLenum mode )

{

   GET_CURRENT_CONTEXT( ctx );

   if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END) {

      struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

      int i;

      if (ctx->NewState) {

	 _mesa_update_state( ctx );

	 CALL_Begin(ctx->Exec, (mode));

	 return;

      }

      if (!_mesa_valid_to_render(ctx, "glBegin")) {

         return;

      }

      /* Heuristic: attempt to isolate attributes occuring outside

       * begin/end pairs.

       */

      if (exec->vtx.vertex_size && !exec->vtx.attrsz[0])

	 vbo_exec_FlushVertices_internal( ctx, GL_FALSE );

      i = exec->vtx.prim_count++;

      exec->vtx.prim[i].mode = mode;

      exec->vtx.prim[i].begin = 1;

      exec->vtx.prim[i].end = 0;

      exec->vtx.prim[i].indexed = 0;

      exec->vtx.prim[i].weak = 0;

      exec->vtx.prim[i].pad = 0;

      exec->vtx.prim[i].start = exec->vtx.vert_count;

      exec->vtx.prim[i].count = 0;

      exec->vtx.prim[i].num_instances = 1;

      ctx->Driver.CurrentExecPrimitive = mode;

   }

   else

      _mesa_error( ctx, GL_INVALID_OPERATION, "glBegin" );

}

/**

 * Called via glEnd.

 */

static void GLAPIENTRY vbo_exec_End( void )

{

   GET_CURRENT_CONTEXT( ctx );

   if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {

      struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

      int idx = exec->vtx.vert_count;

      int i = exec->vtx.prim_count - 1;

      exec->vtx.prim[i].end = 1;

      exec->vtx.prim[i].count = idx - exec->vtx.prim[i].start;

      ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END;

      if (exec->vtx.prim_count == VBO_MAX_PRIM)

	 vbo_exec_vtx_flush( exec, GL_FALSE );

   }

   else

      _mesa_error( ctx, GL_INVALID_OPERATION, "glEnd" );

}

/**

 * Called via glPrimitiveRestartNV()

 */

static void GLAPIENTRY

vbo_exec_PrimitiveRestartNV(void)

{

   GLenum curPrim;

   GET_CURRENT_CONTEXT( ctx );

   curPrim = ctx->Driver.CurrentExecPrimitive;

   if (curPrim == PRIM_OUTSIDE_BEGIN_END) {

      _mesa_error( ctx, GL_INVALID_OPERATION, "glPrimitiveRestartNV" );

   }

   else {

      vbo_exec_End();

      vbo_exec_Begin(curPrim);

   }

}

static void vbo_exec_vtxfmt_init( struct vbo_exec_context *exec )

{

   GLvertexformat *vfmt = &exec->vtxfmt;

   _MESA_INIT_ARRAYELT_VTXFMT(vfmt, _ae_);

   vfmt->Begin = vbo_exec_Begin;

   vfmt->End = vbo_exec_End;

   vfmt->PrimitiveRestartNV = vbo_exec_PrimitiveRestartNV;

   _MESA_INIT_DLIST_VTXFMT(vfmt, _mesa_);

   _MESA_INIT_EVAL_VTXFMT(vfmt, vbo_exec_);

   vfmt->Rectf = _mesa_noop_Rectf;

   /* from attrib_tmp.h:

    */

   vfmt->Color3f = vbo_Color3f;

   vfmt->Color3fv = vbo_Color3fv;

   vfmt->Color4f = vbo_Color4f;

   vfmt->Color4fv = vbo_Color4fv;

   vfmt->FogCoordfEXT = vbo_FogCoordfEXT;

   vfmt->FogCoordfvEXT = vbo_FogCoordfvEXT;

   vfmt->MultiTexCoord1fARB = vbo_MultiTexCoord1f;

   vfmt->MultiTexCoord1fvARB = vbo_MultiTexCoord1fv;

   vfmt->MultiTexCoord2fARB = vbo_MultiTexCoord2f;

   vfmt->MultiTexCoord2fvARB = vbo_MultiTexCoord2fv;

   vfmt->MultiTexCoord3fARB = vbo_MultiTexCoord3f;

   vfmt->MultiTexCoord3fvARB = vbo_MultiTexCoord3fv;

   vfmt->MultiTexCoord4fARB = vbo_MultiTexCoord4f;

   vfmt->MultiTexCoord4fvARB = vbo_MultiTexCoord4fv;

   vfmt->Normal3f = vbo_Normal3f;

   vfmt->Normal3fv = vbo_Normal3fv;

   vfmt->SecondaryColor3fEXT = vbo_SecondaryColor3fEXT;

   vfmt->SecondaryColor3fvEXT = vbo_SecondaryColor3fvEXT;

   vfmt->TexCoord1f = vbo_TexCoord1f;

   vfmt->TexCoord1fv = vbo_TexCoord1fv;

   vfmt->TexCoord2f = vbo_TexCoord2f;

   vfmt->TexCoord2fv = vbo_TexCoord2fv;

   vfmt->TexCoord3f = vbo_TexCoord3f;

   vfmt->TexCoord3fv = vbo_TexCoord3fv;

   vfmt->TexCoord4f = vbo_TexCoord4f;

   vfmt->TexCoord4fv = vbo_TexCoord4fv;

   vfmt->Vertex2f = vbo_Vertex2f;

   vfmt->Vertex2fv = vbo_Vertex2fv;

   vfmt->Vertex3f = vbo_Vertex3f;

   vfmt->Vertex3fv = vbo_Vertex3fv;

   vfmt->Vertex4f = vbo_Vertex4f;

   vfmt->Vertex4fv = vbo_Vertex4fv;

   vfmt->VertexAttrib1fARB = vbo_VertexAttrib1fARB;

   vfmt->VertexAttrib1fvARB = vbo_VertexAttrib1fvARB;

   vfmt->VertexAttrib2fARB = vbo_VertexAttrib2fARB;

   vfmt->VertexAttrib2fvARB = vbo_VertexAttrib2fvARB;

   vfmt->VertexAttrib3fARB = vbo_VertexAttrib3fARB;

   vfmt->VertexAttrib3fvARB = vbo_VertexAttrib3fvARB;

   vfmt->VertexAttrib4fARB = vbo_VertexAttrib4fARB;

   vfmt->VertexAttrib4fvARB = vbo_VertexAttrib4fvARB;

   vfmt->VertexAttrib1fNV = vbo_VertexAttrib1fNV;

   vfmt->VertexAttrib1fvNV = vbo_VertexAttrib1fvNV;

   vfmt->VertexAttrib2fNV = vbo_VertexAttrib2fNV;

   vfmt->VertexAttrib2fvNV = vbo_VertexAttrib2fvNV;

   vfmt->VertexAttrib3fNV = vbo_VertexAttrib3fNV;

   vfmt->VertexAttrib3fvNV = vbo_VertexAttrib3fvNV;

   vfmt->VertexAttrib4fNV = vbo_VertexAttrib4fNV;

   vfmt->VertexAttrib4fvNV = vbo_VertexAttrib4fvNV;

   /* integer-valued */

   vfmt->VertexAttribI1i = vbo_VertexAttribI1i;

   vfmt->VertexAttribI2i = vbo_VertexAttribI2i;

   vfmt->VertexAttribI3i = vbo_VertexAttribI3i;

   vfmt->VertexAttribI4i = vbo_VertexAttribI4i;

   vfmt->VertexAttribI2iv = vbo_VertexAttribI2iv;

   vfmt->VertexAttribI3iv = vbo_VertexAttribI3iv;

   vfmt->VertexAttribI4iv = vbo_VertexAttribI4iv;

   /* unsigned integer-valued */

   vfmt->VertexAttribI1ui = vbo_VertexAttribI1ui;

   vfmt->VertexAttribI2ui = vbo_VertexAttribI2ui;

   vfmt->VertexAttribI3ui = vbo_VertexAttribI3ui;

   vfmt->VertexAttribI4ui = vbo_VertexAttribI4ui;

   vfmt->VertexAttribI2uiv = vbo_VertexAttribI2uiv;

   vfmt->VertexAttribI3uiv = vbo_VertexAttribI3uiv;

   vfmt->VertexAttribI4uiv = vbo_VertexAttribI4uiv;

   vfmt->Materialfv = vbo_Materialfv;

   vfmt->EdgeFlag = vbo_EdgeFlag;

   vfmt->Indexf = vbo_Indexf;

   vfmt->Indexfv = vbo_Indexfv;

}

#else /* FEATURE_beginend */

static void vbo_exec_vtxfmt_init( struct vbo_exec_context *exec )

{

   /* silence warnings */

   (void) vbo_Color3f;

   (void) vbo_Color3fv;

   (void) vbo_Color4f;

   (void) vbo_Color4fv;

   (void) vbo_FogCoordfEXT;

   (void) vbo_FogCoordfvEXT;

   (void) vbo_MultiTexCoord1f;

   (void) vbo_MultiTexCoord1fv;

   (void) vbo_MultiTexCoord2f;

   (void) vbo_MultiTexCoord2fv;

   (void) vbo_MultiTexCoord3f;

   (void) vbo_MultiTexCoord3fv;

   (void) vbo_MultiTexCoord4f;

   (void) vbo_MultiTexCoord4fv;

   (void) vbo_Normal3f;

   (void) vbo_Normal3fv;

   (void) vbo_SecondaryColor3fEXT;

   (void) vbo_SecondaryColor3fvEXT;

   (void) vbo_TexCoord1f;

   (void) vbo_TexCoord1fv;

   (void) vbo_TexCoord2f;

   (void) vbo_TexCoord2fv;

   (void) vbo_TexCoord3f;

   (void) vbo_TexCoord3fv;

   (void) vbo_TexCoord4f;

   (void) vbo_TexCoord4fv;

   (void) vbo_Vertex2f;

   (void) vbo_Vertex2fv;

   (void) vbo_Vertex3f;

   (void) vbo_Vertex3fv;

   (void) vbo_Vertex4f;

   (void) vbo_Vertex4fv;

   (void) vbo_VertexAttrib1fARB;

   (void) vbo_VertexAttrib1fvARB;

   (void) vbo_VertexAttrib2fARB;

   (void) vbo_VertexAttrib2fvARB;

   (void) vbo_VertexAttrib3fARB;

   (void) vbo_VertexAttrib3fvARB;

   (void) vbo_VertexAttrib4fARB;

   (void) vbo_VertexAttrib4fvARB;

   (void) vbo_VertexAttrib1fNV;

   (void) vbo_VertexAttrib1fvNV;

   (void) vbo_VertexAttrib2fNV;

   (void) vbo_VertexAttrib2fvNV;

   (void) vbo_VertexAttrib3fNV;

   (void) vbo_VertexAttrib3fvNV;

   (void) vbo_VertexAttrib4fNV;

   (void) vbo_VertexAttrib4fvNV;

   (void) vbo_Materialfv;

   (void) vbo_EdgeFlag;

   (void) vbo_Indexf;

   (void) vbo_Indexfv;

}

#endif /* FEATURE_beginend */

/**

 * Tell the VBO module to use a real OpenGL vertex buffer object to

 * store accumulated immediate-mode vertex data.

 * This replaces the malloced buffer which was created in

 * vb_exec_vtx_init() below.

 */

void vbo_use_buffer_objects(struct gl_context *ctx)

{

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

   /* Any buffer name but 0 can be used here since this bufferobj won't

    * go into the bufferobj hashtable.

    */

   GLuint bufName = IMM_BUFFER_NAME;

   GLenum target = GL_ARRAY_BUFFER_ARB;

   GLenum usage = GL_STREAM_DRAW_ARB;

   GLsizei size = VBO_VERT_BUFFER_SIZE;

   /* Make sure this func is only used once */

   assert(exec->vtx.bufferobj == ctx->Shared->NullBufferObj);

   if (exec->vtx.buffer_map) {

      _mesa_align_free(exec->vtx.buffer_map);

      exec->vtx.buffer_map = NULL;

      exec->vtx.buffer_ptr = NULL;

   }

   /* Allocate a real buffer object now */

   _mesa_reference_buffer_object(ctx, &exec->vtx.bufferobj, NULL);

   exec->vtx.bufferobj = ctx->Driver.NewBufferObject(ctx, bufName, target);

   ctx->Driver.BufferData(ctx, target, size, NULL, usage, exec->vtx.bufferobj);

}

void vbo_exec_vtx_init( struct vbo_exec_context *exec )

{

   struct gl_context *ctx = exec->ctx;

   struct vbo_context *vbo = vbo_context(ctx);

   GLuint i;

   /* Allocate a buffer object.  Will just reuse this object

    * continuously, unless vbo_use_buffer_objects() is called to enable

    * use of real VBOs.

    */

   _mesa_reference_buffer_object(ctx,

                                 &exec->vtx.bufferobj,

                                 ctx->Shared->NullBufferObj);

   ASSERT(!exec->vtx.buffer_map);

   exec->vtx.buffer_map = (GLfloat *)_mesa_align_malloc(VBO_VERT_BUFFER_SIZE, 64);

   exec->vtx.buffer_ptr = exec->vtx.buffer_map;

   vbo_exec_vtxfmt_init( exec );

   /* Hook our functions into the dispatch table.

    */

   _mesa_install_exec_vtxfmt( exec->ctx, &exec->vtxfmt );

   for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {

      ASSERT(i < Elements(exec->vtx.attrsz));

      exec->vtx.attrsz[i] = 0;

      ASSERT(i < Elements(exec->vtx.active_sz));

      exec->vtx.active_sz[i] = 0;

   }

   for (i = 0 ; i < VERT_ATTRIB_MAX; i++) {

      ASSERT(i < Elements(exec->vtx.inputs));

      ASSERT(i < Elements(exec->vtx.arrays));

      exec->vtx.inputs[i] = &exec->vtx.arrays[i];

   }

   {

      struct gl_client_array *arrays = exec->vtx.arrays;

      unsigned i;

      memcpy(arrays,      vbo->legacy_currval,  16 * sizeof(arrays[0]));

      memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0]));

      for (i = 0; i < 16; ++i) {

         arrays[i     ].BufferObj = NULL;

         arrays[i + 16].BufferObj = NULL;

         _mesa_reference_buffer_object(ctx, &arrays[i     ].BufferObj,

                                       vbo->legacy_currval[i].BufferObj);

         _mesa_reference_buffer_object(ctx, &arrays[i + 16].BufferObj,

                                       vbo->generic_currval[i].BufferObj);

      }

   }

   exec->vtx.vertex_size = 0;

}

void vbo_exec_vtx_destroy( struct vbo_exec_context *exec )

{

   /* using a real VBO for vertex data */

   struct gl_context *ctx = exec->ctx;

   unsigned i;

   /* True VBOs should already be unmapped

    */

   if (exec->vtx.buffer_map) {

      ASSERT(exec->vtx.bufferobj->Name == 0 ||

             exec->vtx.bufferobj->Name == IMM_BUFFER_NAME);

      if (exec->vtx.bufferobj->Name == 0) {

         _mesa_align_free(exec->vtx.buffer_map);

         exec->vtx.buffer_map = NULL;

         exec->vtx.buffer_ptr = NULL;

      }

   }

   /* Drop any outstanding reference to the vertex buffer

    */

   for (i = 0; i < Elements(exec->vtx.arrays); i++) {

      _mesa_reference_buffer_object(ctx,

                                    &exec->vtx.arrays[i].BufferObj,

                                    NULL);

   }

   /* Free the vertex buffer.  Unmap first if needed.

    */

   if (_mesa_bufferobj_mapped(exec->vtx.bufferobj)) {

      ctx->Driver.UnmapBuffer(ctx, GL_ARRAY_BUFFER, exec->vtx.bufferobj);

   }

   _mesa_reference_buffer_object(ctx, &exec->vtx.bufferobj, NULL);

}

void vbo_exec_BeginVertices( struct gl_context *ctx )

{

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

   if (0) printf("%s\n", __FUNCTION__);

   vbo_exec_vtx_map( exec );

   assert((exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) == 0);

   exec->ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT;

}

void vbo_exec_FlushVertices_internal( struct gl_context *ctx, GLboolean unmap )

{

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

   if (exec->vtx.vert_count || unmap) {

      vbo_exec_vtx_flush( exec, unmap );

   }

   if (exec->vtx.vertex_size) {

      vbo_exec_copy_to_current( exec );

      reset_attrfv( exec );

   }

}

/**

 * \param flags  bitmask of FLUSH_STORED_VERTICES, FLUSH_UPDATE_CURRENT

 */

void vbo_exec_FlushVertices( struct gl_context *ctx, GLuint flags )

{

   struct vbo_exec_context *exec = &vbo_context(ctx)->exec;

#ifdef DEBUG

   /* debug check: make sure we don't get called recursively */

   exec->flush_call_depth++;

   assert(exec->flush_call_depth == 1);

#endif

   if (0) printf("%s\n", __FUNCTION__);

   if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) {

      if (0) printf("%s - inside begin/end\n", __FUNCTION__);

#ifdef DEBUG

      exec->flush_call_depth--;

      assert(exec->flush_call_depth == 0);

#endif

      return;

   }

   vbo_exec_FlushVertices_internal( ctx, GL_TRUE );

   /* Need to do this to ensure BeginVertices gets called again:

    */

   if (exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT)

      exec->ctx->Driver.NeedFlush &= ~FLUSH_UPDATE_CURRENT;

   exec->ctx->Driver.NeedFlush &= ~flags;

#ifdef DEBUG

   exec->flush_call_depth--;

   assert(exec->flush_call_depth == 0);

#endif

}

static void reset_attrfv( struct vbo_exec_context *exec )

{

   GLuint i;

   for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) {

      exec->vtx.attrsz[i] = 0;

      exec->vtx.active_sz[i] = 0;

   }

   exec->vtx.vertex_size = 0;

}

void GLAPIENTRY

_es_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a)

{

   vbo_Color4f(r, g, b, a);

}

void GLAPIENTRY

_es_Normal3f(GLfloat x, GLfloat y, GLfloat z)

{

   vbo_Normal3f(x, y, z);

}

void GLAPIENTRY

_es_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q)

{

   vbo_MultiTexCoord4f(target, s, t, r, q);

}

void GLAPIENTRY

_es_Materialfv(GLenum face, GLenum pname, const GLfloat *params)

{

   vbo_Materialfv(face, pname, params);

}

void GLAPIENTRY

_es_Materialf(GLenum face, GLenum pname, GLfloat param)

{

   GLfloat p[4];

   p[0] = param;

   p[1] = p[2] = p[3] = 0.0F;

   vbo_Materialfv(face, pname, p);

}

/**

 * A special version of glVertexAttrib4f that does not treat index 0 as

 * VBO_ATTRIB_POS.

 */

static void

VertexAttrib4f_nopos(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)

{

   GET_CURRENT_CONTEXT(ctx);

   if (index < MAX_VERTEX_GENERIC_ATTRIBS)

      ATTR(VBO_ATTRIB_GENERIC0 + index, 4, x, y, z, w);

   else

      ERROR();

}

void GLAPIENTRY

_es_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)

{

   VertexAttrib4f_nopos(index, x, y, z, w);

}

void GLAPIENTRY

_es_VertexAttrib1f(GLuint indx, GLfloat x)

{

   VertexAttrib4f_nopos(indx, x, 0.0f, 0.0f, 1.0f);

}

void GLAPIENTRY

_es_VertexAttrib1fv(GLuint indx, const GLfloat* values)

{

   VertexAttrib4f_nopos(indx, values[0], 0.0f, 0.0f, 1.0f);

}

void GLAPIENTRY

_es_VertexAttrib2f(GLuint indx, GLfloat x, GLfloat y)

{

   VertexAttrib4f_nopos(indx, x, y, 0.0f, 1.0f);

}

void GLAPIENTRY

_es_VertexAttrib2fv(GLuint indx, const GLfloat* values)

{

   VertexAttrib4f_nopos(indx, values[0], values[1], 0.0f, 1.0f);

}

void GLAPIENTRY

_es_VertexAttrib3f(GLuint indx, GLfloat x, GLfloat y, GLfloat z)

{

   VertexAttrib4f_nopos(indx, x, y, z, 1.0f);

}

void GLAPIENTRY

_es_VertexAttrib3fv(GLuint indx, const GLfloat* values)

{

   VertexAttrib4f_nopos(indx, values[0], values[1], values[2], 1.0f);

}

void GLAPIENTRY

_es_VertexAttrib4fv(GLuint indx, const GLfloat* values)

{

   VertexAttrib4f_nopos(indx, values[0], values[1], values[2], values[3]);

}