/*
* Mesa 3-D graphics library
* Version: 3.5
*
* Copyright (C) 1999-2001 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.
*
* Authors:
* Keith Whitwell <keith_whitwell@yahoo.com>
*/
/* Template to build support for t_dd_imm_* tnl module using vertices
* as defined in t_dd_vertex.h.
*
* See t_dd_vbtmp.h for definitions of arguments to this file.
* Unfortunately it seems necessary to duplicate a lot of that code.
*/
#ifndef LOCALVARS
#define LOCALVARS
#endif
/* COPY_VERTEX_FROM_CURRENT in t_dd_imm_vapi.c
*/
static void TAG(emit_vfmt)( struct gl_context *ctx, VERTEX *v )
{
LOCALVARS
;
/* This template assumes (like t_dd_vbtmp.h) that color is ubyte.
*/
if (DO_TEX0 || DO_TEX1 || !HAVE_TINY_VERTICES)
{
const GLubyte *col = GET_HARDWARE_COLOR();
if (HAVE_RGBA_COLOR) {
v->v.ui[4] = *(GLuint *)&col;
} else {
v->v.color.blue = col[2];
v->v.color.green = col[1];
v->v.color.red = col[0];
v->v.color.alpha = col[3];
}
}
else {
if (HAVE_RGBA_COLOR) {
v->v.ui[3] = *(GLuint *)col;
}
else {
v->tv.color.blue = col[2];
v->tv.color.green = col[1];
v->tv.color.red = col[0];
v->tv.color.alpha = col[3];
}
}
if (DO_TEX0) {
GLfloat *tc = ctx->Current.Texture[0];
v->v.u0 = tc[0];
v->v.v0 = tc[1];
if (DO_PTEX) {
if (HAVE_PTEX_VERTICES) {
v->pv.q0 = tc[3];
}
else {
float rhw = 1.0 / tc[3];
v->v.w *= tc[3];
v->v.u0 *= rhw;
v->v.v0 *= rhw;
}
}
}
if (DO_TEX1) {
GLfloat *tc = ctx->Current.Texture[1];
if (DO_PTEX) {
v->pv.u1 = tc[0];
v->pv.v1 = tc[1];
v->pv.q1 = tc[3];
}
else {
v->v.u1 = tc[0];
v->v.v1 = tc[1];
}
}
else if (DO_PTEX) {
*(GLuint *)&v->pv.q1 = 0; /* avoid culling on radeon */
}
if (DO_TEX2) {
GLfloat *tc = ctx->Current.Texture[2];
if (DO_PTEX) {
v->pv.u2 = tc[0];
v->pv.v2 = tc[1];
v->pv.q2 = tc[3];
}
else {
v->v.u2 = tc[0];
v->v.v2 = tc[1];
}
}
if (DO_TEX3) {
GLfloat *tc = ctx->Current.Texture[3];
if (DO_PTEX) {
v->pv.u3 = tc[0];
v->pv.v3 = tc[1];
v->pv.q3 = tc[3];
}
else {
v->v.u3 = tc[0];
v->v.v3 = tc[1];
}
}
}
static void TAG(interp)( struct gl_context *ctx,
GLfloat t,
TNL_VERTEX *dst,
TNL_VERTEX *in,
TNL_VERTEX *out )
{
LOCALVARS
const GLfloat *s = GET_VIEWPORT_MAT();
GLfloat w;
(void)s;
if (HAVE_HW_DIVIDE) {
VIEWPORT_X( dst->v.v.x, dst->clip[0] );
VIEWPORT_Y( dst->v.v.y, dst->clip[1] );
VIEWPORT_Z( dst->v.v.z, dst->clip[2] );
w = dstclip[3];
}
else {
w = 1.0 / dst->clip[3];
VIEWPORT_X( dst->v.v.x, dst->clip[0] * w );
VIEWPORT_Y( dst->v.v.y, dst->clip[1] * w );
VIEWPORT_Z( dst->v.v.z, dst->clip[2] * w );
}
if (HAVE_HW_DIVIDE || DO_TEX0) {
dst->v.v.w = w;
INTERP_UB( t, dst->v.ub4[4][0], out->v.ub4[4][0], in->v.ub4[4][0] );
INTERP_UB( t, dst->v.ub4[4][1], out->v.ub4[4][1], in->v.ub4[4][1] );
INTERP_UB( t, dst->v.ub4[4][2], out->v.ub4[4][2], in->v.ub4[4][2] );
INTERP_UB( t, dst->v.ub4[4][3], out->v.ub4[4][3], in->v.ub4[4][3] );
if (DO_TEX0) {
if (DO_PTEX) {
if (HAVE_PTEX_VERTICES) {
INTERP_F( t, dst->v.pv.u0, out->v.pv.u0, in->v.pv.u0 );
INTERP_F( t, dst->v.pv.v0, out->v.pv.v0, in->v.pv.v0 );
INTERP_F( t, dst->v.pv.q0, out->v.pv.q0, in->v.pv.q0 );
} else {
GLfloat wout = out->clip[3]; /* projected clip */
GLfloat win = in->clip[3]; /* projected clip */
GLfloat qout = out->v.pv.w / wout;
GLfloat qin = in->v.pv.w / win;
GLfloat qdst, rqdst;
ASSERT( !HAVE_HW_DIVIDE ); /* assert win, wout projected clip */
INTERP_F( t, dst->v.v.u0, out->v.v.u0 * qout, in->v.v.u0 * qin );
INTERP_F( t, dst->v.v.v0, out->v.v.v0 * qout, in->v.v.v0 * qin );
INTERP_F( t, qdst, qout, qin );
rqdst = 1.0 / qdst;
dst->v.v.u0 *= rqdst;
dst->v.v.v0 *= rqdst;
dst->v.v.w *= rqdst;
}
}
else {
INTERP_F( t, dst->v.v.u0, out->v.v.u0, in->v.v.u0 );
INTERP_F( t, dst->v.v.v0, out->v.v.v0, in->v.v.v0 );
}
}
if (DO_TEX1) {
if (DO_PTEX) {
INTERP_F( t, dst->v.pv.u1, out->v.pv.u1, in->v.pv.u1 );
INTERP_F( t, dst->v.pv.v1, out->v.pv.v1, in->v.pv.v1 );
INTERP_F( t, dst->v.pv.q1, out->v.pv.q1, in->v.pv.q1 );
} else {
INTERP_F( t, dst->v.v.u1, out->v.v.u1, in->v.v.u1 );
INTERP_F( t, dst->v.v.v1, out->v.v.v1, in->v.v.v1 );
}
}
else if (DO_PTEX) {
dst->v.pv.q0 = 0.0; /* must be a valid float on radeon */
}
if (DO_TEX2) {
if (DO_PTEX) {
INTERP_F( t, dst->v.pv.u2, out->v.pv.u2, in->v.pv.u2 );
INTERP_F( t, dst->v.pv.v2, out->v.pv.v2, in->v.pv.v2 );
INTERP_F( t, dst->v.pv.q2, out->v.pv.q2, in->v.pv.q2 );
} else {
INTERP_F( t, dst->v.v.u2, out->v.v.u2, in->v.v.u2 );
INTERP_F( t, dst->v.v.v2, out->v.v.v2, in->v.v.v2 );
}
}
if (DO_TEX3) {
if (DO_PTEX) {
INTERP_F( t, dst->v.pv.u3, out->v.pv.u3, in->v.pv.u3 );
INTERP_F( t, dst->v.pv.v3, out->v.pv.v3, in->v.pv.v3 );
INTERP_F( t, dst->v.pv.q3, out->v.pv.q3, in->v.pv.q3 );
} else {
INTERP_F( t, dst->v.v.u3, out->v.v.u3, in->v.v.u3 );
INTERP_F( t, dst->v.v.v3, out->v.v.v3, in->v.v.v3 );
}
}
} else {
/* 4-dword vertex. Color is in v[3] and there is no oow coordinate.
*/
INTERP_UB( t, dst->v.ub4[3][0], out->v.ub4[3][0], in->v.ub4[3][0] );
INTERP_UB( t, dst->v.ub4[3][1], out->v.ub4[3][1], in->v.ub4[3][1] );
INTERP_UB( t, dst->v.ub4[3][2], out->v.ub4[3][2], in->v.ub4[3][2] );
INTERP_UB( t, dst->v.ub4[3][3], out->v.ub4[3][3], in->v.ub4[3][3] );
}
}
static __inline void TAG(copy_pv)( struct gl_context *ctx,
TNL_VERTEX *dst,
TNL_VERTEX *src )
{
if (DO_TEX0 || DO_TEX1 || !HAVE_TINY_VERTICES) {
dst->v.v.ui[4] = src->v.v.ui[4];
}
else {
dst->v.v.ui[3] = src->v.v.ui[3];
}
}
static void TAG(init)( void )
{
setup_tab[IND].emit = TAG(emit_vfmt);
setup_tab[IND].interp = TAG(interp_vfmt);
}
#undef IND
#undef TAG