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/* $XFree86: xc/lib/GL/mesa/src/drv/tdfx/fxstripdet.c,v 1.1 2000/09/24 13:51:19 alanh Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
*
* Copyright (C) 1999-2000 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.
*
*
* Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
* terms stated above.
*
* Thank you for your contribution, David!
*
* Please make note of the above copyright/license statement. If you
* contributed code or bug fixes to this code under the previous (GNU
* Library) license and object to the new license, your code will be
* removed at your request. Please see the Mesa docs/COPYRIGHT file
* for more information.
*
* Additional Mesa/3Dfx driver developers:
* Daryll Strauss <daryll@precisioninsight.com>
* Keith Whitwell <keith@precisioninsight.com>
*
* See fxapi.h for more revision/author details.
*/
#include "fxdrv.h"
#include "vbcull.h"
#define STRIP0(u,v) ((u1 == v1) && (u2 == v0))
#define STRIP1(u,v) ((u0 == v0) && (u2 == v1))
#define LOCAL_VARS fxVertex* gWin = FX_DRIVER_DATA(VB)->verts; \
GrVertex** sb = FX_DRIVER_DATA(VB)->strips_b;\
fxMesaContext fxMesa = FX_CONTEXT(VB->ctx);
#define STRIPSLOCAL_VAR int sc = 0;
#define INIT(a)
#define SENDTRI(u0,u1,u2) FX_grDrawTriangle(fxMesa, (GrVertex*)&(gWin[u0].f),(GrVertex*)&(gWin[u1].f),(GrVertex*)&(gWin[u2].f))
#define FLUSHTRI() /* No-Op */
#define STARTSTRIPS(u0,u1,u2) { sb[sc++] = (GrVertex*)&(gWin[u0].f); sb[sc++] = (GrVertex*)&(gWin[u1].f); sb[sc++] = (GrVertex*)&(gWin[u2].f); }
#define SENDSTRIPS(v2) { sb[sc++] = (GrVertex*)&(gWin[v2].f); }
#define FLUSHSTRIPS() FX_grDrawVertexArray(fxMesa, GR_TRIANGLE_STRIP,sc,sb)
#define CLIPPED(a,b,c) 0
#define CULLED(a,b,c) 0
#define SENDCLIPTRI(a,b,c) /* NoOp */
#define TAG(x) x##_fx
#include "fxsdettmp.h"
/* Clipped but no userclip */
#define STRIP0(u,v) ((u1 == v1) && (u2 == v0)) && !clipmask[v2]
#define STRIP1(u,v) ((u0 == v0) && (u2 == v1)) && !clipmask[v2]
#define LOCAL_VARS fxVertex* gWin = FX_DRIVER_DATA(VB)->verts; \
GrVertex** sb = FX_DRIVER_DATA(VB)->strips_b; \
const GLubyte *const clipmask = VB->ClipMask; \
const fxMesaContext fxMesa=(fxMesaContext)VB->ctx->DriverCtx; \
const tfxTriClipFunc cliptri = fxMesa->clip_tri_stride;
#define STRIPSLOCAL_VAR int sc = 0;
#define INIT(a)
#define SENDTRI(u0,u1,u2) FX_grDrawTriangle(fxMesa, (GrVertex*)&(gWin[u0].f),(GrVertex*)&(gWin[u1].f),(GrVertex*)&(gWin[u2].f))
#define FLUSHTRI() /* No-Op */
#define STARTSTRIPS(u0,u1,u2) { sb[sc++] = (GrVertex*)&(gWin[u0].f); sb[sc++] = (GrVertex*)&(gWin[u1].f); sb[sc++] = (GrVertex*)&(gWin[u2].f); }
#define SENDSTRIPS(v2) { sb[sc++] = (GrVertex*)&(gWin[v2].f); }
#define FLUSHSTRIPS() FX_grDrawVertexArray(fxMesa, GR_TRIANGLE_STRIP,sc,sb)
#define CLIPPED(u0,u1,u2) (clipmask[u0] | clipmask[u1] | clipmask[u2])
#define CULLED(u0,u1,u2) (clipmask[u0] & clipmask[u1] & clipmask[u2])
#define SENDCLIPTRI(u0,u1,u2) { \
GLuint vl[3]; \
ASSIGN_3V(vl, u0, u1, u2 ); \
cliptri(VB,vl,clipmask[u0] | clipmask[u1] | clipmask[u2]); \
}
#define TAG(x) x##_fx_view_clipped
#include "fxsdettmp.h"
/* Clipped and might be userclip */
#define STRIP0(u,v) ((u1 == v1) && (u2 == v0)) && !clipmask[v2]
#define STRIP1(u,v) ((u0 == v0) && (u2 == v1)) && !clipmask[v2]
#define LOCAL_VARS fxVertex* gWin = FX_DRIVER_DATA(VB)->verts; \
GrVertex** sb = FX_DRIVER_DATA(VB)->strips_b; \
const GLubyte *const clipmask = VB->ClipMask; \
const GLubyte *userclipmask = VB->UserClipMask; \
const fxMesaContext fxMesa=(fxMesaContext)VB->ctx->DriverCtx; \
const tfxTriClipFunc cliptri = fxMesa->clip_tri_stride;
#define STRIPSLOCAL_VAR int sc = 0;
#define INIT(a)
#define SENDTRI(u0,u1,u2) FX_grDrawTriangle(fxMesa, (GrVertex*)&(gWin[u0].f),(GrVertex*)&(gWin[u1].f),(GrVertex*)&(gWin[u2].f))
#define FLUSHTRI() /* No-Op */
#define STARTSTRIPS(u0,u1,u2) { sb[sc++] = (GrVertex*)&(gWin[u0].f); sb[sc++] = (GrVertex*)&(gWin[u1].f); sb[sc++] = (GrVertex*)&(gWin[u2].f); }
#define SENDSTRIPS(v2) { sb[sc++] = (GrVertex*)&(gWin[v2].f); }
#define FLUSHSTRIPS() FX_grDrawVertexArray(fxMesa, GR_TRIANGLE_STRIP,sc,sb)
#define CLIPPED(u0,u1,u2) (clipmask[u0] | clipmask[u1] | clipmask[u2])
#define CULLED(u0,u1,u2) (clipmask[u0] & clipmask[u1] & clipmask[u2] & CLIP_ALL_BITS)
#define SENDCLIPTRI(u0,u1,u2) { \
GLuint vl[3]; \
GLuint imask = (clipmask[u0] | clipmask[u1] | clipmask[u2]); \
\
if (imask & CLIP_USER_BIT) { \
if (!(userclipmask[u2] & userclipmask[u1] & userclipmask[u0])) \
{ ASSIGN_3V(vl, u2, u1, u0 ); \
imask |= (userclipmask[u2] | userclipmask[u1] | userclipmask[u0]) << 8; \
cliptri( VB, vl, imask );} \
} \
else { ASSIGN_3V(vl, u2, u1, u0 ); \
cliptri( VB, vl, imask ); } \
}
#define TAG(x) x##_fx_clipped
#include "fxsdettmp.h"
void
fxDDRenderInitGlide3(GLcontext * ctx)
{
#if 0
render_tab_fx_smooth_indirect[GL_TRIANGLES] =
render_vb_triangles_smooth_indirect_sd_fx;
render_tab_fx_smooth_indirect_view_clipped[GL_TRIANGLES] =
render_vb_triangles_smooth_indirect_sd_fx_view_clipped;
render_tab_fx_smooth_indirect_clipped[GL_TRIANGLES] =
render_vb_triangles_smooth_indirect_sd_fx_clipped;
#endif
}
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