0,0 → 1,268 |
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/* |
* 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. |
*/ |
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#ifndef LOCALVARS |
#define LOCALVARS |
#endif |
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/* COPY_VERTEX_FROM_CURRENT in t_dd_imm_vapi.c |
*/ |
static void TAG(emit_vfmt)( struct gl_context *ctx, VERTEX *v ) |
{ |
LOCALVARS |
; |
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/* 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]; |
} |
} |
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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]; |
} |
} |
} |
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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; |
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(void)s; |
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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 ); |
} |
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if (HAVE_HW_DIVIDE || DO_TEX0) { |
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dst->v.v.w = w; |
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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] ); |
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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; |
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ASSERT( !HAVE_HW_DIVIDE ); /* assert win, wout projected clip */ |
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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 ); |
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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] ); |
} |
} |
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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]; |
} |
} |
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static void TAG(init)( void ) |
{ |
setup_tab[IND].emit = TAG(emit_vfmt); |
setup_tab[IND].interp = TAG(interp_vfmt); |
} |
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#undef IND |
#undef TAG |
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