--- /dev/null
+
+/*
+ * 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)( GLcontext *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)( GLcontext *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)( GLcontext *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
+
+
+
projects / mesa.git / blobdiff