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/* $Id: vbfill.c,v 1.1.1.1 2000/01/06 13:27:08 faith Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.1
*
* Copyright (C) 1999 Brian Paul 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.
*/
#ifdef PC_HEADER
#include "all.h"
#else
#ifndef XFree86Server
#include <assert.h>
#include <math.h>
#include <stdio.h>
#else
#include "GL/xf86glx.h"
#endif
#include "context.h"
#include "enums.h"
#include "light.h"
#include "macros.h"
#include "matrix.h"
#include "mmath.h"
#include "types.h"
#include "varray.h"
#include "vb.h"
#include "vbcull.h"
#include "vbfill.h"
#include "vbrender.h"
#include "vbxform.h"
#include "xform.h"
#endif
/* KW: The work of most of the functions which were in this file are
* now done directly by the GLVertex, GLTexCoord, GLIndex, ...,
* functions in api{1,2}.c. This is made possible by the fact
* that display lists and vertex buffers are now built the same
* way, so there is no need for the indirection and overhead of a
* function pointer.
*/
void gl_Begin( GLcontext *ctx, GLenum p )
{
struct immediate *IM = ctx->input;
GLuint inflags, state;
if (MESA_VERBOSE&VERBOSE_API) {
if (MESA_VERBOSE&VERBOSE_IMMEDIATE)
fprintf(stderr, "glBegin(IM %d) %s\n", IM->id, gl_lookup_enum_by_nr(p));
else
fprintf(stderr, "<");
}
if (ctx->NewState)
gl_update_state( ctx ); /* should already be flushed */
/* if only a very few slots left, might as well flush now
*/
if (IM->Count > VB_MAX-4) {
IM->maybe_transform_vb( IM );
IM = ctx->input;
}
state = IM->BeginState;
inflags = state & (VERT_BEGIN_0|VERT_BEGIN_1);
state |= inflags << 2; /* set error conditions */
if (MESA_VERBOSE&VERBOSE_API)
fprintf(stderr, "in gl_Begin(IM %d), BeginState is %x, errors %x",
IM->id,
state,
inflags<<2);
if (inflags != (VERT_BEGIN_0|VERT_BEGIN_1))
{
GLuint count = IM->Count;
GLuint last = IM->LastPrimitive;
state |= (VERT_BEGIN_0|VERT_BEGIN_1);
IM->Flag[count] |= VERT_BEGIN;
IM->Primitive[count] = p;
IM->NextPrimitive[IM->LastPrimitive] = count;
IM->LastPrimitive = count;
if (IM->FlushElt) {
gl_exec_array_elements( ctx, IM, last, count );
IM->FlushElt = 0;
}
}
if (MESA_VERBOSE&VERBOSE_API)
fprintf(stderr, "in gl_Begin final state %x\n", state);
IM->BeginState = state;
}
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