fxvb.c

Mesa is an open-source implementation of the OpenGL specification - a system for rendering interacti

/*
 * Mesa 3-D graphics library
 * Version:  5.1
 *
 * Copyright (C) 1999-2003  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
 * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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 <[e-mail]>
 *    Daniel Borca <[e-mail]>
 */

#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif

#ifdef FX

#include "glheader.h"
#include "mtypes.h"
#include "imports.h"
#include "macros.h"
#include "colormac.h"

#include "math/m_translate.h"
#include "swrast_setup/swrast_setup.h"

#include "tnl/tnl.h"
#include "tnl/t_context.h"

#include "fxdrv.h"


static void copy_pv( GLcontext *ctx, GLuint edst, GLuint esrc )
{
   fxMesaContext fxMesa = FX_CONTEXT( ctx );
   GrVertex *dst = fxMesa->verts + edst;
   GrVertex *src = fxMesa->verts + esrc;

#if FX_PACKEDCOLOR
   *(GLuint *)&dst->pargb = *(GLuint *)&src->pargb;
#else  /* !FX_PACKEDCOLOR */
   COPY_FLOAT(dst->r, src->r);
   COPY_FLOAT(dst->g, src->g);
   COPY_FLOAT(dst->b, src->b);
   COPY_FLOAT(dst->a, src->a);
#endif /* !FX_PACKEDCOLOR */
}

static void copy_pv2( GLcontext *ctx, GLuint edst, GLuint esrc )
{
   fxMesaContext fxMesa = FX_CONTEXT( ctx );
   GrVertex *dst = fxMesa->verts + edst;
   GrVertex *src = fxMesa->verts + esrc;

#if FX_PACKEDCOLOR
   *(GLuint *)&dst->pargb = *(GLuint *)&src->pargb;
   *(GLuint *)&dst->pspec = *(GLuint *)&src->pspec;
#else  /* !FX_PACKEDCOLOR */
   COPY_FLOAT(dst->r, src->r);
   COPY_FLOAT(dst->g, src->g);
   COPY_FLOAT(dst->b, src->b);
   COPY_FLOAT(dst->a, src->a);
   COPY_FLOAT(dst->r1, src->r1);
   COPY_FLOAT(dst->g1, src->g1);
   COPY_FLOAT(dst->b1, src->b1);
#endif /* !FX_PACKEDCOLOR */
}

static struct {
   void		      (*emit) (GLcontext *ctx, GLuint start, GLuint end, void *dest);
   tnl_copy_pv_func	copy_pv;
   tnl_interp_func	interp;
   GLboolean	      (*check_tex_sizes) (GLcontext *ctx);
   GLuint		vertex_format;
} setup_tab[MAX_SETUP];


#define GET_COLOR(ptr, idx) ((ptr)->data[idx])


static void interp_extras( GLcontext *ctx,
			   GLfloat t,
			   GLuint dst, GLuint out, GLuint in,
			   GLboolean force_boundary )
{
   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

   if (VB->ColorPtr[1]) {
      /* If stride is zero, ColorPtr[1] is constant across the VB, so
       * there is no point interpolating between two values as they will
       * be identical.  This case is handled in t_dd_tritmp.h
       */
      if (VB->ColorPtr[1]->stride) {
	 assert(VB->ColorPtr[1]->stride == 4 * sizeof(GLfloat));
	 INTERP_4F( t,
		    GET_COLOR(VB->ColorPtr[1], dst),
		    GET_COLOR(VB->ColorPtr[1], out),
		    GET_COLOR(VB->ColorPtr[1], in) );
      }

      if (VB->SecondaryColorPtr[1]) {
	 INTERP_3F( t,
		    GET_COLOR(VB->SecondaryColorPtr[1], dst),
		    GET_COLOR(VB->SecondaryColorPtr[1], out),
		    GET_COLOR(VB->SecondaryColorPtr[1], in) );
      }
   }

   if (VB->EdgeFlag) {
      VB->EdgeFlag[dst] = VB->EdgeFlag[out] || force_boundary;
   }

   setup_tab[FX_CONTEXT(ctx)->SetupIndex].interp(ctx, t, dst, out, in,
						   force_boundary);
}

static void copy_pv_extras( GLcontext *ctx, GLuint dst, GLuint src )
{
   struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;

   if (VB->ColorPtr[1]) {
	 COPY_4FV( GET_COLOR(VB->ColorPtr[1], dst),
		   GET_COLOR(VB->ColorPtr[1], src) );

	 if (VB->SecondaryColorPtr[1]) {
	    COPY_3FV( GET_COLOR(VB->SecondaryColorPtr[1], dst),
		      GET_COLOR(VB->SecondaryColorPtr[1], src) );
	 }
   }

   setup_tab[FX_CONTEXT(ctx)->SetupIndex].copy_pv(ctx, dst, src);
}


#define IND (SETUP_XYZW|SETUP_RGBA)
#define TAG(x) x##_wg
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0)
#define TAG(x) x##_wgt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1)
#define TAG(x) x##_wgt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_PTEX)
#define TAG(x) x##_wgpt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX)
#define TAG(x) x##_wgpt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_PSIZ)
#define TAG(x) x##_wga
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_PSIZ)
#define TAG(x) x##_wgt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|SETUP_PSIZ)
#define TAG(x) x##_wgt0t1a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_wgpt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_wgpt0t1a
#include "fxvbtmp.h"


#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC)
#define TAG(x) x##_2wg
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0)
#define TAG(x) x##_2wgt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1)
#define TAG(x) x##_2wgt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PTEX)
#define TAG(x) x##_2wgpt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX)
#define TAG(x) x##_2wgpt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_PSIZ)
#define TAG(x) x##_2wga
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PSIZ)
#define TAG(x) x##_2wgt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|SETUP_PSIZ)
#define TAG(x) x##_2wgt0t1a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_2wgpt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_2wgpt0t1a
#include "fxvbtmp.h"

/* fog { */
#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_FOGC)
#define TAG(x) x##_wgf
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_FOGC)
#define TAG(x) x##_wgt0f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|SETUP_FOGC)
#define TAG(x) x##_wgt0t1f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_PTEX|SETUP_FOGC)
#define TAG(x) x##_wgpt0f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX|SETUP_FOGC)
#define TAG(x) x##_wgpt0t1f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_wgaf
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_wgt0af
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_wgt0t1af
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_PTEX|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_wgpt0af
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_wgpt0t1af
#include "fxvbtmp.h"


#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_FOGC)
#define TAG(x) x##_2wgf
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_FOGC)
#define TAG(x) x##_2wgt0f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|SETUP_FOGC)
#define TAG(x) x##_2wgt0t1f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PTEX|SETUP_FOGC)
#define TAG(x) x##_2wgpt0f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX|SETUP_FOGC)
#define TAG(x) x##_2wgpt0t1f
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_2wgaf
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_2wgt0af
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_2wgt0t1af
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PTEX|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_2wgpt0af
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_TMU1|\
             SETUP_PTEX|SETUP_PSIZ|SETUP_FOGC)
#define TAG(x) x##_2wgpt0t1af
#include "fxvbtmp.h"
/* fog } */


/* Snapping for voodoo-1
 */
#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA)
#define TAG(x) x##_wsg
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0)
#define TAG(x) x##_wsgt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|\
             SETUP_TMU1)
#define TAG(x) x##_wsgt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|\
             SETUP_PTEX)
#define TAG(x) x##_wsgpt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|\
	     SETUP_TMU1|SETUP_PTEX)
#define TAG(x) x##_wsgpt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_PSIZ)
#define TAG(x) x##_wsga
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|SETUP_PSIZ)
#define TAG(x) x##_wsgt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|\
             SETUP_TMU1|SETUP_PSIZ)
#define TAG(x) x##_wsgt0t1a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|\
             SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_wsgpt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_TMU0|\
	     SETUP_TMU1|SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_wsgpt0t1a
#include "fxvbtmp.h"


#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC)
#define TAG(x) x##_2wsg
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0)
#define TAG(x) x##_2wsgt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|\
             SETUP_TMU1)
#define TAG(x) x##_2wsgt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|\
             SETUP_PTEX)
#define TAG(x) x##_2wsgpt0
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|\
	     SETUP_TMU1|SETUP_PTEX)
#define TAG(x) x##_2wsgpt0t1
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_PSIZ)
#define TAG(x) x##_2wsga
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|SETUP_PSIZ)
#define TAG(x) x##_2wsgt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|\
             SETUP_TMU1|SETUP_PSIZ)
#define TAG(x) x##_2wsgt0t1a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|\
             SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_2wsgpt0a
#include "fxvbtmp.h"

#define IND (SETUP_XYZW|SETUP_SNAP|SETUP_RGBA|SETUP_SPEC|SETUP_TMU0|\
	     SETUP_TMU1|SETUP_PTEX|SETUP_PSIZ)
#define TAG(x) x##_2wsgpt0t1a
#include "fxvbtmp.h"