+++ /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@tungstengraphics.com>
- */
-
-static void copy_pv_rgba4_spec5( GLcontext *ctx, GLuint edst, GLuint esrc )
-{
- i810ContextPtr imesa = I810_CONTEXT( ctx );
- GLubyte *i810verts = (GLubyte *)imesa->verts;
- GLuint shift = imesa->vertex_stride_shift;
- i810Vertex *dst = (i810Vertex *)(i810verts + (edst << shift));
- i810Vertex *src = (i810Vertex *)(i810verts + (esrc << shift));
- dst->ui[4] = src->ui[4];
- dst->ui[5] = src->ui[5];
-}
-
-static void copy_pv_rgba4( GLcontext *ctx, GLuint edst, GLuint esrc )
-{
- i810ContextPtr imesa = I810_CONTEXT( ctx );
- GLubyte *i810verts = (GLubyte *)imesa->verts;
- GLuint shift = imesa->vertex_stride_shift;
- i810Vertex *dst = (i810Vertex *)(i810verts + (edst << shift));
- i810Vertex *src = (i810Vertex *)(i810verts + (esrc << shift));
- dst->ui[4] = src->ui[4];
-}
-
-static void copy_pv_rgba3( GLcontext *ctx, GLuint edst, GLuint esrc )
-{
- i810ContextPtr imesa = I810_CONTEXT( ctx );
- GLubyte *i810verts = (GLubyte *)imesa->verts;
- GLuint shift = imesa->vertex_stride_shift;
- i810Vertex *dst = (i810Vertex *)(i810verts + (edst << shift));
- i810Vertex *src = (i810Vertex *)(i810verts + (esrc << shift));
- dst->ui[3] = src->ui[3];
-}
+++ /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@tungstengraphics.com>
- */
-
-
-/* Template for render stages which build and emit vertices directly
- * to fixed-size dma buffers. Useful for rendering strips and other
- * native primitives where clipping and per-vertex tweaks such as
- * those in t_dd_tritmp.h are not required.
- *
- * Produces code for both inline triangles and indexed triangles.
- * Where various primitive types are unaccelerated by hardware, the
- * code attempts to fallback to other primitive types (quadstrips to
- * tristrips, lineloops to linestrips), or to indexed vertices.
- * Ultimately, a FALLBACK() macro is invoked if there is no way to
- * render the primitive natively.
- */
-
-#if !defined(HAVE_TRIANGLES)
-#error "must have at least triangles to use render template"
-#endif
-
-#if !HAVE_ELTS
-#define ELTS_VARS
-#define ALLOC_ELTS( nr )
-#define EMIT_ELT( offset, elt )
-#define EMIT_TWO_ELTS( offset, elt0, elt1 )
-#define INCR_ELTS( nr )
-#define ELT_INIT(prim)
-#define GET_CURRENT_VB_MAX_ELTS() 0
-#define GET_SUBSEQUENT_VB_MAX_ELTS() 0
-#define ALLOC_ELTS_NEW_PRIMITIVE(nr)
-#define RELEASE_ELT_VERTS()
-#define EMIT_INDEXED_VERTS( ctx, start, count )
-#endif
-
-#ifndef EMIT_TWO_ELTS
-#define EMIT_TWO_ELTS( offset, elt0, elt1 ) \
-do { \
- EMIT_ELT( offset, elt0 ); \
- EMIT_ELT( offset+1, elt1 ); \
-} while (0)
-#endif
-
-#ifndef FINISH
-#define FINISH
-#endif
-
-/**********************************************************************/
-/* Render whole begin/end objects */
-/**********************************************************************/
-
-
-
-static GLboolean TAG(emit_elt_verts)( GLcontext *ctx,
- GLuint start, GLuint count )
-{
- if (HAVE_ELTS) {
- LOCAL_VARS;
- GLuint nr = count - start;
-
- if ( nr >= GET_SUBSEQUENT_VB_MAX_VERTS() ) /* assumes same packing for
- * indexed and regualar verts
- */
- return GL_FALSE;
-
- NEW_PRIMITIVE(); /* finish last prim */
- EMIT_INDEXED_VERTS( ctx, start, count );
- return GL_TRUE;
- } else {
- return GL_FALSE;
- }
-}
-
-#if (HAVE_ELTS)
-static void TAG(emit_elts)( GLcontext *ctx, GLuint *elts, GLuint nr )
-{
- GLint i;
- LOCAL_VARS;
- ELTS_VARS;
-
- ALLOC_ELTS( nr );
-
- for ( i = 0 ; i < nr ; i+=2, elts += 2 ) {
- EMIT_TWO_ELTS( 0, elts[0], elts[1] );
- INCR_ELTS( 2 );
- }
-}
-#endif
-
-
-/***********************************************************************
- * Render non-indexed primitives.
- ***********************************************************************/
-
-
-
-static void TAG(render_points_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_POINTS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
- GLuint j, nr;
-
- INIT( GL_POINTS );
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- FINISH;
-
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-static void TAG(render_lines_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_LINES) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
- GLuint j, nr;
-
- INIT( GL_LINES );
-
- /* Emit whole number of lines in total and in each buffer:
- */
- count -= (count-start) & 1;
- currentsz -= currentsz & 1;
- dmasz -= dmasz & 1;
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- FINISH;
-
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_line_strip_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_LINE_STRIPS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
- GLuint j, nr;
-
- NEW_PRIMITIVE(); /* always a new primitive */
- INIT( GL_LINE_STRIP );
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- FINISH;
-
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_line_loop_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_LINE_STRIPS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
- GLuint j, nr;
-
- NEW_PRIMITIVE();
- INIT( GL_LINE_STRIP );
-
- if (flags & PRIM_BEGIN)
- j = start;
- else
- j = start + 1;
-
- /* Ensure last vertex won't wrap buffers:
- */
- currentsz--;
- dmasz--;
-
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- if (j + 1 < count) {
- for ( ; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- if (start < count - 1 && (flags & PRIM_END))
- EMIT_VERTS( ctx, start, 1 );
- }
- else if (start + 1 < count && (flags & PRIM_END)) {
- EMIT_VERTS( ctx, start+1, 1 );
- EMIT_VERTS( ctx, start, 1 );
- }
-
- FINISH;
-
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_triangles_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- int dmasz = (GET_SUBSEQUENT_VB_MAX_VERTS()/3) * 3;
- int currentsz = (GET_CURRENT_VB_MAX_VERTS()/3) * 3;
- GLuint j, nr;
-
- INIT(GL_TRIANGLES);
-
- /* Emit whole number of tris in total. dmasz is already a multiple
- * of 3.
- */
- count -= (count-start)%3;
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
- FINISH;
-}
-
-
-
-static void TAG(render_tri_strip_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_TRI_STRIPS) {
- LOCAL_VARS;
- GLuint j, nr;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz;
-
- INIT(GL_TRIANGLE_STRIP);
- NEW_PRIMITIVE();
-
- currentsz = GET_CURRENT_VB_MAX_VERTS();
-
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- /* From here on emit even numbers of tris when wrapping over buffers:
- */
- dmasz -= (dmasz & 1);
- currentsz -= (currentsz & 1);
-
- for (j = start ; j + 2 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- FINISH;
-
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-static void TAG(render_tri_fan_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_TRI_FANS) {
- LOCAL_VARS;
- GLuint j, nr;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
-
- NEW_PRIMITIVE();
- INIT(GL_TRIANGLE_FAN);
-
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- for (j = start + 1 ; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j + 1 );
- EMIT_VERTS( ctx, start, 1 );
- EMIT_VERTS( ctx, j, nr - 1 );
- currentsz = dmasz;
- }
-
- FINISH;
-
- }
- else {
- /* Could write code to emit these as indexed vertices (for the
- * g400, for instance).
- */
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_poly_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_POLYGONS) {
- LOCAL_VARS;
- GLuint j, nr;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
-
- NEW_PRIMITIVE();
- INIT(GL_POLYGON);
-
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- for (j = start + 1 ; j + 1 < count ; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j + 1 );
- EMIT_VERTS( ctx, start, 1 );
- EMIT_VERTS( ctx, j, nr - 1 );
- currentsz = dmasz;
- }
-
- FINISH;
-
- }
- else if (HAVE_TRI_FANS && !(ctx->_TriangleCaps & DD_FLATSHADE)) {
- TAG(render_tri_fan_verts)( ctx, start, count, flags );
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-static void TAG(render_quad_strip_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j, nr;
-
- if (HAVE_QUAD_STRIPS) {
- LOCAL_VARS;
- GLuint j, nr;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz;
-
- INIT(GL_QUAD_STRIP);
- NEW_PRIMITIVE();
-
- currentsz = GET_CURRENT_VB_MAX_VERTS();
-
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- dmasz -= (dmasz & 2);
- currentsz -= (currentsz & 2);
-
- for (j = start ; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- FINISH;
-
- } else if (HAVE_TRI_STRIPS && (ctx->_TriangleCaps & DD_FLATSHADE)) {
- if (TAG(emit_elt_verts)( ctx, start, count )) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint j, nr;
-
- /* Simulate flat-shaded quadstrips using indexed vertices:
- */
- NEW_PRIMITIVE();
- ELT_INIT( GL_TRIANGLES );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 1;
- count -= (count-start) & 1;
- currentsz -= currentsz & 1;
-
- if (currentsz < 12)
- currentsz = dmasz;
-
- currentsz = currentsz/6*2;
- dmasz = dmasz/6*2;
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
- if (nr >= 4) {
- GLint quads = (nr/2)-1;
- GLint i;
- ELTS_VARS;
-
- NEW_PRIMITIVE();
- ALLOC_ELTS_NEW_PRIMITIVE( quads*6 );
-
- for ( i = j-start ; i < j-start+quads*2 ; i+=2 ) {
- EMIT_TWO_ELTS( 0, (i+0), (i+1) );
- EMIT_TWO_ELTS( 2, (i+2), (i+1) );
- EMIT_TWO_ELTS( 4, (i+3), (i+2) );
- INCR_ELTS( 6 );
- }
-
- NEW_PRIMITIVE();
- }
- currentsz = dmasz;
- }
-
- RELEASE_ELT_VERTS();
- }
- else {
- /* Vertices won't fit in a single buffer or elts not available,
- * VERT_FALLBACK.
- */
- VERT_FALLBACK( ctx, start, count, flags );
- }
- }
- else if (HAVE_TRI_STRIPS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_VERTS();
- int currentsz = GET_CURRENT_VB_MAX_VERTS();
-
- /* Emit smooth-shaded quadstrips as tristrips:
- */
- NEW_PRIMITIVE();
- INIT( GL_TRIANGLE_STRIP );
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 1;
- currentsz -= currentsz & 1;
- count -= (count-start) & 1;
-
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
-
- FINISH;
-
- } else {
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_quads_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_QUADS) {
- LOCAL_VARS;
- int dmasz = (GET_SUBSEQUENT_VB_MAX_VERTS()/4) * 4;
- int currentsz = (GET_CURRENT_VB_MAX_VERTS()/4) * 4;
- GLuint j, nr;
-
- INIT(GL_QUADS);
-
- /* Emit whole number of quads in total. dmasz is already a multiple
- * of 4.
- */
- count -= (count-start)%4;
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr) {
- nr = MIN2( currentsz, count - j );
- EMIT_VERTS( ctx, j, nr );
- currentsz = dmasz;
- }
- FINISH;
- } else if (TAG(emit_elt_verts)( ctx, start, count )) {
- /* Hardware doesn't have a quad primitive type -- try to
- * simulate it using indexed vertices and the triangle
- * primitive:
- */
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint j, nr;
-
- NEW_PRIMITIVE();
- ELT_INIT( GL_TRIANGLES );
- currentsz = GET_CURRENT_VB_MAX_ELTS();
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 3;
- count -= (count-start) & 3;
- currentsz -= currentsz & 3;
-
- /* Adjust for rendering as triangles:
- */
- currentsz = currentsz/6*4;
- dmasz = dmasz/6*4;
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( currentsz, count - j );
- if (nr >= 4) {
- GLint quads = nr/4;
- GLint i;
- ELTS_VARS;
-
- NEW_PRIMITIVE();
- ALLOC_ELTS_NEW_PRIMITIVE( quads*6 );
-
- for ( i = j-start ; i < j-start+quads*4 ; i+=4 ) {
- EMIT_TWO_ELTS( 0, (i+0), (i+1) );
- EMIT_TWO_ELTS( 2, (i+3), (i+1) );
- EMIT_TWO_ELTS( 4, (i+2), (i+3) );
- INCR_ELTS( 6 );
- }
-
- NEW_PRIMITIVE();
- }
- currentsz = dmasz;
- }
-
- RELEASE_ELT_VERTS();
- }
- else {
- /* Vertices won't fit in a single buffer, fallback.
- */
- VERT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-static void TAG(render_noop)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
-}
-
-
-
-
-static render_func TAG(render_tab_verts)[GL_POLYGON+2] =
-{
- TAG(render_points_verts),
- TAG(render_lines_verts),
- TAG(render_line_loop_verts),
- TAG(render_line_strip_verts),
- TAG(render_triangles_verts),
- TAG(render_tri_strip_verts),
- TAG(render_tri_fan_verts),
- TAG(render_quads_verts),
- TAG(render_quad_strip_verts),
- TAG(render_poly_verts),
- TAG(render_noop),
-};
-
-
-/****************************************************************************
- * Render elts using hardware indexed verts *
- ****************************************************************************/
-
-#if (HAVE_ELTS)
-static void TAG(render_points_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_POINTS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- GLuint j, nr;
-
- ELT_INIT( GL_POINTS );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( currentsz, count - j );
- TAG(emit_elts)( ctx, elts+j, nr );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- } else {
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-
-static void TAG(render_lines_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_LINES) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- GLuint j, nr;
-
- ELT_INIT( GL_LINES );
-
- /* Emit whole number of lines in total and in each buffer:
- */
- count -= (count-start) & 1;
- currentsz -= currentsz & 1;
- dmasz -= dmasz & 1;
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( currentsz, count - j );
- TAG(emit_elts)( ctx, elts+j, nr );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- } else {
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_line_strip_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_LINE_STRIPS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- GLuint j, nr;
-
- NEW_PRIMITIVE(); /* always a new primitive */
- ELT_INIT( GL_LINE_STRIP );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j );
- TAG(emit_elts)( ctx, elts+j, nr );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- } else {
- /* TODO: Try to emit as indexed lines.
- */
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_line_loop_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_LINE_STRIPS) {
- LOCAL_VARS;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- GLuint j, nr;
-
- NEW_PRIMITIVE();
- ELT_INIT( GL_LINE_STRIP );
-
- if (flags & PRIM_BEGIN)
- j = start;
- else
- j = start + 1;
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- /* Ensure last vertex doesn't wrap:
- */
- currentsz--;
- dmasz--;
-
- for ( ; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j );
-/* NEW_PRIMITIVE(); */
- TAG(emit_elts)( ctx, elts+j, nr );
- currentsz = dmasz;
- }
-
- if (flags & PRIM_END)
- TAG(emit_elts)( ctx, elts+start, 1 );
-
- NEW_PRIMITIVE();
- } else {
- /* TODO: Try to emit as indexed lines */
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-/* For verts, we still eliminate the copy from main memory to dma
- * buffers. For elts, this is probably no better (worse?) than the
- * standard path.
- */
-static void TAG(render_triangles_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS()/3*3;
- int currentsz;
- GLuint j, nr;
-
- NEW_PRIMITIVE();
- ELT_INIT( GL_TRIANGLES );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
-
- /* Emit whole number of tris in total. dmasz is already a multiple
- * of 3.
- */
- count -= (count-start)%3;
- currentsz -= currentsz%3;
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j < count; j += nr) {
- nr = MIN2( currentsz, count - j );
- TAG(emit_elts)( ctx, elts+j, nr );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
-}
-
-
-
-static void TAG(render_tri_strip_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_TRI_STRIPS) {
- LOCAL_VARS;
- GLuint j, nr;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
-
- NEW_PRIMITIVE();
- ELT_INIT( GL_TRIANGLE_STRIP );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- /* Keep the same winding over multiple buffers:
- */
- dmasz -= (dmasz & 1);
- currentsz -= (currentsz & 1);
-
- for (j = start ; j + 2 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
- TAG(emit_elts)( ctx, elts+j, nr );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- } else {
- /* TODO: try to emit as indexed triangles */
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-static void TAG(render_tri_fan_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_TRI_FANS) {
- LOCAL_VARS;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- GLuint j, nr;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
-
- NEW_PRIMITIVE();
- ELT_INIT( GL_TRIANGLE_FAN );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- for (j = start + 1 ; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j + 1 );
- TAG(emit_elts)( ctx, elts+start, 1 );
- TAG(emit_elts)( ctx, elts+j, nr - 1 );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- } else {
- /* TODO: try to emit as indexed triangles */
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-
-static void TAG(render_poly_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_POLYGONS && 0) {
- } else if (HAVE_TRI_FANS && !(ctx->_TriangleCaps & DD_FLATSHADE)) {
- LOCAL_VARS;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- GLuint j, nr;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
-
- NEW_PRIMITIVE();
- ELT_INIT( GL_TRIANGLE_FAN );
-
- currentsz = GET_CURRENT_VB_MAX_ELTS();
- if (currentsz < 8) {
- NEW_BUFFER();
- currentsz = dmasz;
- }
-
- for (j = start + 1 ; j + 1 < count ; j += nr - 1 ) {
- nr = MIN2( currentsz, count - j + 1 );
- TAG(emit_elts)( ctx, elts+start, 1 );
- TAG(emit_elts)( ctx, elts+j, nr - 1 );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- } else {
- ELT_FALLBACK( ctx, start, count, flags );
- }
-}
-
-static void TAG(render_quad_strip_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_QUAD_STRIPS && 0) {
- }
- else if (HAVE_TRI_STRIPS) {
- LOCAL_VARS;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint j, nr;
-
- NEW_PRIMITIVE();
- currentsz = GET_CURRENT_VB_MAX_ELTS();
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 1;
- count -= (count-start) & 1;
- currentsz -= currentsz & 1;
-
- if (currentsz < 12)
- currentsz = dmasz;
-
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
- ELT_INIT( GL_TRIANGLES );
-
- currentsz = currentsz/6*2;
- dmasz = dmasz/6*2;
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
-
- if (nr >= 4)
- {
- GLint i;
- GLint quads = (nr/2)-1;
- ELTS_VARS;
-
-
- NEW_PRIMITIVE();
- ALLOC_ELTS_NEW_PRIMITIVE( quads*6 );
-
- for ( i = j-start ; i < j-start+quads ; i++, elts += 2 ) {
- EMIT_TWO_ELTS( 0, elts[0], elts[1] );
- EMIT_TWO_ELTS( 2, elts[2], elts[1] );
- EMIT_TWO_ELTS( 4, elts[3], elts[2] );
- INCR_ELTS( 6 );
- }
-
- NEW_PRIMITIVE();
- }
-
- currentsz = dmasz;
- }
- }
- else {
- ELT_INIT( GL_TRIANGLE_STRIP );
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
- TAG(emit_elts)( ctx, elts+j, nr );
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- }
- }
-}
-
-
-static void TAG(render_quads_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (HAVE_QUADS && 0) {
- } else {
- LOCAL_VARS;
- GLuint *elts = TNL_CONTEXT(ctx)->vb.Elts;
- int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
- int currentsz;
- GLuint j, nr;
-
- ELT_INIT( GL_TRIANGLES );
- currentsz = GET_CURRENT_VB_MAX_ELTS();
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 3;
- count -= (count-start) & 3;
- currentsz -= currentsz & 3;
-
- /* Adjust for rendering as triangles:
- */
- currentsz = currentsz/6*4;
- dmasz = dmasz/6*4;
-
- if (currentsz < 8)
- currentsz = dmasz;
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( currentsz, count - j );
-
- if (nr >= 4)
- {
- GLint quads = nr/4;
- GLint i;
- ELTS_VARS;
- NEW_PRIMITIVE();
- ALLOC_ELTS_NEW_PRIMITIVE( quads * 6 );
-
- for ( i = j-start ; i < j-start+quads ; i++, elts += 4 ) {
- EMIT_TWO_ELTS( 0, elts[0], elts[1] );
- EMIT_TWO_ELTS( 2, elts[3], elts[1] );
- EMIT_TWO_ELTS( 4, elts[2], elts[3] );
- INCR_ELTS( 6 );
- }
- }
-
- NEW_PRIMITIVE();
- currentsz = dmasz;
- }
- }
-}
-
-
-
-static render_func TAG(render_tab_elts)[GL_POLYGON+2] =
-{
- TAG(render_points_elts),
- TAG(render_lines_elts),
- TAG(render_line_loop_elts),
- TAG(render_line_strip_elts),
- TAG(render_triangles_elts),
- TAG(render_tri_strip_elts),
- TAG(render_tri_fan_elts),
- TAG(render_quads_elts),
- TAG(render_quad_strip_elts),
- TAG(render_poly_elts),
- TAG(render_noop),
-};
-#endif
+++ /dev/null
-
-/*
- * Mesa 3-D graphics library
- * Version: 4.0.3
- *
- * Copyright (C) 1999-2002 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@tungstengraphics.com>
- */
-
-
-/* Template for render stages which build and emit vertices directly
- * to fixed-size dma buffers. Useful for rendering strips and other
- * native primitives where clipping and per-vertex tweaks such as
- * those in t_dd_tritmp.h are not required.
- *
- */
-
-#if !HAVE_TRIANGLES || !HAVE_POINTS || !HAVE_LINES
-#error "must have points, lines & triangles to use render template"
-#endif
-
-#if !HAVE_TRI_STRIPS || !HAVE_TRI_FANS
-#error "must have tri strip and fans to use render template"
-#endif
-
-#if !HAVE_LINE_STRIPS
-#error "must have line strips to use render template"
-#endif
-
-#if !HAVE_POLYGONS
-#error "must have polygons to use render template"
-#endif
-
-#if !HAVE_ELTS
-#error "must have elts to use render template"
-#endif
-
-
-#ifndef EMIT_TWO_ELTS
-#define EMIT_TWO_ELTS( dest, offset, elt0, elt1 ) \
-do { \
- (dest)[offset] = (elt0); \
- (dest)[offset+1] = (elt1); \
-} while (0)
-#endif
-
-
-/**********************************************************************/
-/* Render whole begin/end objects */
-/**********************************************************************/
-
-
-static ELT_TYPE *TAG(emit_elts)( GLcontext *ctx,
- ELT_TYPE *dest,
- GLuint *elts, GLuint nr )
-{
- GLint i;
- LOCAL_VARS;
-
- for ( i = 0 ; i+1 < nr ; i+=2, elts += 2 ) {
- EMIT_TWO_ELTS( dest, 0, elts[0], elts[1] );
- dest += 2;
- }
- if (i < nr) {
- EMIT_ELT( dest, 0, elts[0] );
- dest += 1;
- }
-
- return dest;
-}
-
-static ELT_TYPE *TAG(emit_consecutive_elts)( GLcontext *ctx,
- ELT_TYPE *dest,
- GLuint start, GLuint nr )
-{
- GLint i;
- LOCAL_VARS;
-
- for ( i = 0 ; i+1 < nr ; i+=2, start += 2 ) {
- EMIT_TWO_ELTS( dest, 0, start, start+1 );
- dest += 2;
- }
- if (i < nr) {
- EMIT_ELT( dest, 0, start );
- dest += 1;
- }
-
- return dest;
-}
-
-/***********************************************************************
- * Render non-indexed primitives.
- ***********************************************************************/
-
-
-
-static void TAG(render_points_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (start < count) {
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
- EMIT_PRIM( ctx, GL_POINTS, HW_POINTS, start, count );
- }
-}
-
-static void TAG(render_lines_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
- count -= (count-start) & 1;
-
- if (start+1 >= count)
- return;
-
- if ((flags & PRIM_BEGIN) && ctx->Line.StippleFlag) {
- RESET_STIPPLE();
- AUTO_STIPPLE( GL_TRUE );
- }
-
- EMIT_PRIM( ctx, GL_LINES, HW_LINES, start, count );
-
- if ((flags & PRIM_END) && ctx->Line.StippleFlag)
- AUTO_STIPPLE( GL_FALSE );
-}
-
-
-static void TAG(render_line_strip_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (start+1 >= count)
- return;
-
- if ((flags & PRIM_BEGIN) && ctx->Line.StippleFlag)
- RESET_STIPPLE();
-
-
- if (PREFER_DISCRETE_ELT_PRIM( count-start, HW_LINES ))
- {
- int dmasz = GET_MAX_HW_ELTS();
- GLuint j, nr;
-
- ELT_INIT( GL_LINES, HW_LINES );
-
- /* Emit whole number of lines in each full buffer.
- */
- dmasz = dmasz/2;
-
-
- for (j = start; j + 1 < count; j += nr - 1 ) {
- ELT_TYPE *dest;
- GLint i;
-
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( (nr-1)*2 );
-
- for ( i = j ; i+1 < j+nr ; i+=1 ) {
- EMIT_TWO_ELTS( dest, 0, (i+0), (i+1) );
- dest += 2;
- }
-
- CLOSE_ELTS();
- }
- }
- else
- EMIT_PRIM( ctx, GL_LINE_STRIP, HW_LINE_STRIP, start, count );
-}
-
-
-static void TAG(render_line_loop_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- GLuint j, nr;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (flags & PRIM_BEGIN) {
- j = start;
- if (ctx->Line.StippleFlag)
- RESET_STIPPLE( );
- }
- else
- j = start + 1;
-
- if (flags & PRIM_END) {
-
- if (start+1 >= count)
- return;
-
- if (PREFER_DISCRETE_ELT_PRIM( count-start, HW_LINES )) {
- int dmasz = GET_MAX_HW_ELTS();
-
- ELT_INIT( GL_LINES, HW_LINES );
-
- /* Emit whole number of lines in each full buffer.
- */
- dmasz = dmasz/2;
-
- /* Ensure last vertex doesn't wrap:
- */
- dmasz--;
-
- for (; j + 1 < count; ) {
- GLint i;
- ELT_TYPE *dest;
-
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr*2 ); /* allocs room for 1 more line */
-
- for ( i = 0 ; i < nr - 1 ; i+=1 ) {
- EMIT_TWO_ELTS( dest, 0, (j+i), (j+i+1) );
- dest += 2;
- }
-
- j += nr - 1;
-
- /* Emit 1 more line into space alloced above */
- if (j + 1 >= count) {
- EMIT_TWO_ELTS( dest, 0, (j), (start) );
- dest += 2;
- }
-
- CLOSE_ELTS();
- }
- }
- else
- {
- int dmasz = GET_MAX_HW_ELTS() - 1;
-
- ELT_INIT( GL_LINE_STRIP, HW_LINE_STRIP );
-
- for ( ; j + 1 < count; ) {
- nr = MIN2( dmasz, count - j );
- if (j + nr < count) {
- ELT_TYPE *dest = ALLOC_ELTS( nr );
- dest = TAG(emit_consecutive_elts)( ctx, dest, j, nr );
- j += nr - 1;
- CLOSE_ELTS();
- }
- else if (nr) {
- ELT_TYPE *dest = ALLOC_ELTS( nr + 1 );
- dest = TAG(emit_consecutive_elts)( ctx, dest, j, nr );
- dest = TAG(emit_consecutive_elts)( ctx, dest, start, 1 );
- j += nr;
- CLOSE_ELTS();
- }
- }
- }
- } else {
- TAG(render_line_strip_verts)( ctx, j, count, flags );
- }
-}
-
-
-static void TAG(render_triangles_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- count -= (count-start)%3;
-
- if (start+2 >= count) {
- return;
- }
-
- /* need a PREFER_DISCRETE_ELT_PRIM here too..
- */
- EMIT_PRIM( ctx, GL_TRIANGLES, HW_TRIANGLES, start, count );
-}
-
-
-
-static void TAG(render_tri_strip_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (start + 2 >= count)
- return;
-
- if (PREFER_DISCRETE_ELT_PRIM( count-start, HW_TRIANGLES ))
- {
- int dmasz = GET_MAX_HW_ELTS();
- int parity = 0;
- GLuint j, nr;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
- /* Emit even number of tris in each full buffer.
- */
- dmasz = dmasz/3;
- dmasz -= dmasz & 1;
-
- for (j = start; j + 2 < count; j += nr - 2 ) {
- ELT_TYPE *dest;
- GLint i;
-
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( (nr-2)*3 );
-
- for ( i = j ; i+2 < j+nr ; i++, parity^=1 ) {
- EMIT_ELT( dest, 0, (i+0+parity) );
- EMIT_ELT( dest, 1, (i+1-parity) );
- EMIT_ELT( dest, 2, (i+2) );
- dest += 3;
- }
-
- CLOSE_ELTS();
- }
- }
- else if (HAVE_TRI_STRIP_1)
- EMIT_PRIM( ctx, GL_TRIANGLE_STRIP, HW_TRIANGLE_STRIP_1, start, count );
- else {
- /* Emit the first triangle with elts, then the rest as a regular strip.
- * TODO: Make this unlikely in t_imm_api.c
- */
- ELT_TYPE *dest;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
- dest = ALLOC_ELTS( 3 );
- EMIT_ELT( dest, 0, (start+1) );
- EMIT_ELT( dest, 1, (start+0) );
- EMIT_ELT( dest, 2, (start+2) );
- dest += 3;
- CLOSE_ELTS();
-
- start++;
- if (start + 2 >= count)
- return;
-
- EMIT_PRIM( ctx, GL_TRIANGLE_STRIP, HW_TRIANGLE_STRIP_0, start,
- count );
- }
-}
-
-static void TAG(render_tri_fan_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (start+2 >= count)
- return;
-
- if (PREFER_DISCRETE_ELT_PRIM( count-start, HW_TRIANGLES ))
- {
- int dmasz = GET_MAX_HW_ELTS();
- GLuint j, nr;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
- dmasz = dmasz/3;
-
- for (j = start + 1; j + 1 < count; j += nr - 1 ) {
- ELT_TYPE *dest;
- GLint i;
-
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( (nr-1)*3 );
-
- for ( i = j ; i+1 < j+nr ; i++ ) {
- EMIT_ELT( dest, 0, (start) );
- EMIT_ELT( dest, 1, (i) );
- EMIT_ELT( dest, 2, (i+1) );
- dest += 3;
- }
-
- CLOSE_ELTS();
- }
- }
- else {
- EMIT_PRIM( ctx, GL_TRIANGLE_FAN, HW_TRIANGLE_FAN, start, count );
- }
-}
-
-
-static void TAG(render_poly_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (start+2 >= count)
- return;
-
- EMIT_PRIM( ctx, GL_POLYGON, HW_POLYGON, start, count );
-}
-
-static void TAG(render_quad_strip_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- count -= (count-start) & 1;
-
- if (start+3 >= count)
- return;
-
- if (HAVE_QUAD_STRIPS) {
- EMIT_PRIM( ctx, GL_QUAD_STRIP, HW_QUAD_STRIP, start, count );
- }
- else if (ctx->_TriangleCaps & DD_FLATSHADE) {
- LOCAL_VARS;
- int dmasz = GET_MAX_HW_ELTS();
- GLuint j, nr;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz = (dmasz/6)*2;
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- ELT_TYPE *dest;
- GLint quads, i;
-
- nr = MIN2( dmasz, count - j );
- quads = (nr/2)-1;
- dest = ALLOC_ELTS( quads*6 );
-
- for ( i = j ; i < j+quads*2 ; i+=2 ) {
- EMIT_TWO_ELTS( dest, 0, (i+0), (i+1) );
- EMIT_TWO_ELTS( dest, 2, (i+2), (i+1) );
- EMIT_TWO_ELTS( dest, 4, (i+3), (i+2) );
- dest += 6;
- }
-
- CLOSE_ELTS();
- }
- }
- else {
- EMIT_PRIM( ctx, GL_TRIANGLE_STRIP, HW_TRIANGLE_STRIP_0, start, count );
- }
-}
-
-
-static void TAG(render_quads_verts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
- count -= (count-start)%4;
-
- if (start+3 >= count)
- return;
-
- if (HAVE_QUADS) {
- EMIT_PRIM( ctx, HW_QUADS, GL_QUADS, start, count );
- }
- else {
- /* Hardware doesn't have a quad primitive type -- simulate it
- * using indexed vertices and the triangle primitive:
- */
- LOCAL_VARS;
- int dmasz = GET_MAX_HW_ELTS();
- GLuint j, nr;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
- /* Adjust for rendering as triangles:
- */
- dmasz = (dmasz/6)*4;
-
- for (j = start; j < count; j += nr ) {
- ELT_TYPE *dest;
- GLint quads, i;
-
- nr = MIN2( dmasz, count - j );
- quads = nr/4;
- dest = ALLOC_ELTS( quads*6 );
-
- for ( i = j ; i < j+quads*4 ; i+=4 ) {
- EMIT_TWO_ELTS( dest, 0, (i+0), (i+1) );
- EMIT_TWO_ELTS( dest, 2, (i+3), (i+1) );
- EMIT_TWO_ELTS( dest, 4, (i+2), (i+3) );
- dest += 6;
- }
-
- CLOSE_ELTS();
- }
- }
-}
-
-static void TAG(render_noop)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
-}
-
-
-
-
-static render_func TAG(render_tab_verts)[GL_POLYGON+2] =
-{
- TAG(render_points_verts),
- TAG(render_lines_verts),
- TAG(render_line_loop_verts),
- TAG(render_line_strip_verts),
- TAG(render_triangles_verts),
- TAG(render_tri_strip_verts),
- TAG(render_tri_fan_verts),
- TAG(render_quads_verts),
- TAG(render_quad_strip_verts),
- TAG(render_poly_verts),
- TAG(render_noop),
-};
-
-
-/****************************************************************************
- * Render elts using hardware indexed verts *
- ****************************************************************************/
-
-static void TAG(render_points_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- int dmasz = GET_MAX_HW_ELTS();
- GLuint *elts = GET_MESA_ELTS();
- GLuint j, nr;
- ELT_TYPE *dest;
-
- ELT_INIT( GL_POINTS, HW_POINTS );
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- CLOSE_ELTS();
- }
-}
-
-
-
-static void TAG(render_lines_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- int dmasz = GET_MAX_HW_ELTS();
- GLuint *elts = GET_MESA_ELTS();
- GLuint j, nr;
- ELT_TYPE *dest;
-
- if (start+1 >= count)
- return;
-
- if ((flags & PRIM_BEGIN) && ctx->Line.StippleFlag) {
- RESET_STIPPLE();
- AUTO_STIPPLE( GL_TRUE );
- }
-
- ELT_INIT( GL_LINES, HW_LINES );
-
- /* Emit whole number of lines in total and in each buffer:
- */
- count -= (count-start) & 1;
- dmasz -= dmasz & 1;
-
- for (j = start; j < count; j += nr ) {
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- CLOSE_ELTS();
- }
-
- if ((flags & PRIM_END) && ctx->Line.StippleFlag)
- AUTO_STIPPLE( GL_FALSE );
-}
-
-
-static void TAG(render_line_strip_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- int dmasz = GET_MAX_HW_ELTS();
- GLuint *elts = GET_MESA_ELTS();
- GLuint j, nr;
- ELT_TYPE *dest;
-
- if (start+1 >= count)
- return;
-
- ELT_INIT( GL_LINE_STRIP, HW_LINE_STRIP );
-
- if ((flags & PRIM_BEGIN) && ctx->Line.StippleFlag)
- RESET_STIPPLE();
-
- for (j = start; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- CLOSE_ELTS();
- }
-}
-
-
-static void TAG(render_line_loop_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- int dmasz = GET_MAX_HW_ELTS();
- GLuint *elts = GET_MESA_ELTS();
- GLuint j, nr;
- ELT_TYPE *dest;
-
- if (0) fprintf(stderr, "%s\n", __FUNCTION__);
-
- if (flags & PRIM_BEGIN)
- j = start;
- else
- j = start + 1;
-
-
- if (flags & PRIM_END) {
- if (start+1 >= count)
- return;
- }
- else {
- if (j+1 >= count)
- return;
- }
-
- ELT_INIT( GL_LINE_STRIP, HW_LINE_STRIP );
-
- if ((flags & PRIM_BEGIN) && ctx->Line.StippleFlag)
- RESET_STIPPLE();
-
-
- /* Ensure last vertex doesn't wrap:
- */
- dmasz--;
-
- for ( ; j + 1 < count; ) {
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr+1 ); /* Reserve possible space for last elt */
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- j += nr - 1;
- if (j + 1 >= count && (flags & PRIM_END)) {
- dest = TAG(emit_elts)( ctx, dest, elts+start, 1 );
- }
- CLOSE_ELTS();
- }
-}
-
-
-static void TAG(render_triangles_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- GLuint *elts = GET_MESA_ELTS();
- int dmasz = GET_MAX_HW_ELTS()/3*3;
- GLuint j, nr;
- ELT_TYPE *dest;
-
- if (start+2 >= count)
- return;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
-
- /* Emit whole number of tris in total. dmasz is already a multiple
- * of 3.
- */
- count -= (count-start)%3;
-
- for (j = start; j < count; j += nr) {
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- CLOSE_ELTS();
- }
-}
-
-
-
-static void TAG(render_tri_strip_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- GLuint j, nr;
- GLuint *elts = GET_MESA_ELTS();
- int dmasz = GET_MAX_HW_ELTS();
- ELT_TYPE *dest;
-
- if (start+2 >= count)
- return;
-
- ELT_INIT( GL_TRIANGLE_STRIP, HW_TRIANGLE_STRIP_0 );
-
- /* Keep the same winding over multiple buffers:
- */
- dmasz -= (dmasz & 1);
-
- for (j = start ; j + 2 < count; j += nr - 2 ) {
- nr = MIN2( dmasz, count - j );
-
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- CLOSE_ELTS();
- }
-}
-
-static void TAG(render_tri_fan_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- GLuint *elts = GET_MESA_ELTS();
- GLuint j, nr;
- int dmasz = GET_MAX_HW_ELTS();
- ELT_TYPE *dest;
-
- if (start+2 >= count)
- return;
-
- ELT_INIT( GL_TRIANGLE_FAN, HW_TRIANGLE_FAN );
-
- for (j = start + 1 ; j + 1 < count; j += nr - 1 ) {
- nr = MIN2( dmasz, count - j + 1 );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+start, 1 );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr - 1 );
- CLOSE_ELTS();
- }
-}
-
-
-static void TAG(render_poly_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- GLuint *elts = GET_MESA_ELTS();
- GLuint j, nr;
- int dmasz = GET_MAX_HW_ELTS();
- ELT_TYPE *dest;
-
- if (start+2 >= count)
- return;
-
- ELT_INIT( GL_POLYGON, HW_POLYGON );
-
- for (j = start + 1 ; j + 1 < count ; j += nr - 1 ) {
- nr = MIN2( dmasz, count - j + 1 );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+start, 1 );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr - 1 );
- CLOSE_ELTS();
- }
-}
-
-static void TAG(render_quad_strip_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (start+3 >= count)
- return;
-
- if (HAVE_QUAD_STRIPS && 0) {
- }
- else {
- LOCAL_VARS;
- GLuint *elts = GET_MESA_ELTS();
- int dmasz = GET_MAX_HW_ELTS();
- GLuint j, nr;
- ELT_TYPE *dest;
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 1;
- count -= (count-start) & 1;
-
- if (ctx->_TriangleCaps & DD_FLATSHADE) {
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
- dmasz = dmasz/6*2;
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( dmasz, count - j );
-
- if (nr >= 4)
- {
- GLint quads = (nr/2)-1;
- ELT_TYPE *dest = ALLOC_ELTS( quads*6 );
- GLint i;
-
- for ( i = j-start ; i < j-start+quads ; i++, elts += 2 ) {
- EMIT_TWO_ELTS( dest, 0, elts[0], elts[1] );
- EMIT_TWO_ELTS( dest, 2, elts[2], elts[1] );
- EMIT_TWO_ELTS( dest, 4, elts[3], elts[2] );
- dest += 6;
- }
-
- CLOSE_ELTS();
- }
- }
- }
- else {
- ELT_INIT( GL_TRIANGLE_STRIP, HW_TRIANGLE_STRIP_0 );
-
- for (j = start; j + 3 < count; j += nr - 2 ) {
- nr = MIN2( dmasz, count - j );
- dest = ALLOC_ELTS( nr );
- dest = TAG(emit_elts)( ctx, dest, elts+j, nr );
- CLOSE_ELTS();
- }
- }
- }
-}
-
-
-static void TAG(render_quads_elts)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- if (start+3 >= count)
- return;
-
- if (HAVE_QUADS && 0) {
- } else {
- LOCAL_VARS;
- GLuint *elts = GET_MESA_ELTS();
- int dmasz = GET_MAX_HW_ELTS();
- GLuint j, nr;
-
- ELT_INIT( GL_TRIANGLES, HW_TRIANGLES );
-
- /* Emit whole number of quads in total, and in each buffer.
- */
- dmasz -= dmasz & 3;
- count -= (count-start) & 3;
-
- /* Adjust for rendering as triangles:
- */
- dmasz = dmasz/6*4;
-
- for (j = start; j + 3 < count; j += nr ) {
- nr = MIN2( dmasz, count - j );
-
- {
- GLint quads = nr/4;
- ELT_TYPE *dest = ALLOC_ELTS( quads * 6 );
- GLint i;
-
- for ( i = j-start ; i < j-start+quads ; i++, elts += 4 ) {
- EMIT_TWO_ELTS( dest, 0, elts[0], elts[1] );
- EMIT_TWO_ELTS( dest, 2, elts[3], elts[1] );
- EMIT_TWO_ELTS( dest, 4, elts[2], elts[3] );
- dest += 6;
- }
-
- CLOSE_ELTS();
- }
- }
- }
-}
-
-
-
-static render_func TAG(render_tab_elts)[GL_POLYGON+2] =
-{
- TAG(render_points_elts),
- TAG(render_lines_elts),
- TAG(render_line_loop_elts),
- TAG(render_line_strip_elts),
- TAG(render_triangles_elts),
- TAG(render_tri_strip_elts),
- TAG(render_tri_fan_elts),
- TAG(render_quads_elts),
- TAG(render_quad_strip_elts),
- TAG(render_poly_elts),
- TAG(render_noop),
-};
+++ /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@tungstengraphics.com>
- */
-
-
-#ifndef POSTFIX
-#define POSTFIX
-#endif
-
-#ifndef INIT
-#define INIT(x)
-#endif
-
-#ifndef NEED_EDGEFLAG_SETUP
-#define NEED_EDGEFLAG_SETUP 0
-#define EDGEFLAG_GET(a) 0
-#define EDGEFLAG_SET(a,b) (void)b
-#endif
-
-#ifndef RESET_STIPPLE
-#define RESET_STIPPLE
-#endif
-
-#ifndef RESET_OCCLUSION
-#define RESET_OCCLUSION
-#endif
-
-#ifndef TEST_PRIM_END
-#define TEST_PRIM_END(flags) (flags & PRIM_END)
-#define TEST_PRIM_BEGIN(flags) (flags & PRIM_BEGIN)
-#define TEST_PRIM_PARITY(flags) (flags & PRIM_PARITY)
-#endif
-
-#ifndef ELT
-#define ELT(x) x
-#endif
-
-#ifndef RENDER_TAB_QUALIFIER
-#define RENDER_TAB_QUALIFIER static
-#endif
-
-static void TAG(render_points)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- LOCAL_VARS;
- (void) flags;
-
- RESET_OCCLUSION;
- INIT(GL_POINTS);
- RENDER_POINTS( start, count );
- POSTFIX;
-}
-
-static void TAG(render_lines)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- LOCAL_VARS;
- (void) flags;
-
- RESET_OCCLUSION;
- INIT(GL_LINES);
- for (j=start+1; j<count; j+=2 ) {
- RENDER_LINE( ELT(j-1), ELT(j) );
- RESET_STIPPLE;
- }
- POSTFIX;
-}
-
-
-static void TAG(render_line_strip)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- LOCAL_VARS;
- (void) flags;
-
- RESET_OCCLUSION;
- INIT(GL_LINE_STRIP);
-
- for (j=start+1; j<count; j++ )
- RENDER_LINE( ELT(j-1), ELT(j) );
-
- if (TEST_PRIM_END(flags))
- RESET_STIPPLE;
-
- POSTFIX;
-}
-
-
-static void TAG(render_line_loop)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint i;
- LOCAL_VARS;
-
- (void) flags;
-
- RESET_OCCLUSION;
- INIT(GL_LINE_LOOP);
-
- if (start+1 < count) {
- if (TEST_PRIM_BEGIN(flags)) {
- RENDER_LINE( ELT(start), ELT(start+1) );
- }
-
- for ( i = start+2 ; i < count ; i++) {
- RENDER_LINE( ELT(i-1), ELT(i) );
- }
-
- if ( TEST_PRIM_END(flags)) {
- RENDER_LINE( ELT(count-1), ELT(start) );
- RESET_STIPPLE;
- }
- }
-
- POSTFIX;
-}
-
-
-static void TAG(render_triangles)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- LOCAL_VARS;
- (void) flags;
-
- INIT(GL_TRIANGLES);
- if (NEED_EDGEFLAG_SETUP) {
- for (j=start+2; j<count; j+=3) {
- /* Leave the edgeflags as supplied by the user.
- */
- RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
- RESET_STIPPLE;
- }
- } else {
- for (j=start+2; j<count; j+=3) {
- RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
- }
- }
- POSTFIX;
-}
-
-
-
-static void TAG(render_tri_strip)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- GLuint parity = 0;
- LOCAL_VARS;
-
- INIT(GL_TRIANGLE_STRIP);
- if (NEED_EDGEFLAG_SETUP) {
- for (j=start+2;j<count;j++,parity^=1) {
- GLuint ej2 = ELT(j-2+parity);
- GLuint ej1 = ELT(j-1-parity);
- GLuint ej = ELT(j);
- GLboolean ef2 = EDGEFLAG_GET( ej2 );
- GLboolean ef1 = EDGEFLAG_GET( ej1 );
- GLboolean ef = EDGEFLAG_GET( ej );
- EDGEFLAG_SET( ej2, GL_TRUE );
- EDGEFLAG_SET( ej1, GL_TRUE );
- EDGEFLAG_SET( ej, GL_TRUE );
- RENDER_TRI( ej2, ej1, ej );
- EDGEFLAG_SET( ej2, ef2 );
- EDGEFLAG_SET( ej1, ef1 );
- EDGEFLAG_SET( ej, ef );
- RESET_STIPPLE;
- }
- } else {
- for (j=start+2; j<count ; j++, parity^=1) {
- RENDER_TRI( ELT(j-2+parity), ELT(j-1-parity), ELT(j) );
- }
- }
- POSTFIX;
-}
-
-
-static void TAG(render_tri_fan)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- LOCAL_VARS;
- (void) flags;
-
- INIT(GL_TRIANGLE_FAN);
- if (NEED_EDGEFLAG_SETUP) {
- for (j=start+2;j<count;j++) {
- /* For trifans, all edges are boundary.
- */
- GLuint ejs = ELT(start);
- GLuint ej1 = ELT(j-1);
- GLuint ej = ELT(j);
- GLboolean efs = EDGEFLAG_GET( ejs );
- GLboolean ef1 = EDGEFLAG_GET( ej1 );
- GLboolean ef = EDGEFLAG_GET( ej );
- EDGEFLAG_SET( ejs, GL_TRUE );
- EDGEFLAG_SET( ej1, GL_TRUE );
- EDGEFLAG_SET( ej, GL_TRUE );
- RENDER_TRI( ejs, ej1, ej);
- EDGEFLAG_SET( ejs, efs );
- EDGEFLAG_SET( ej1, ef1 );
- EDGEFLAG_SET( ej, ef );
- RESET_STIPPLE;
- }
- } else {
- for (j=start+2;j<count;j++) {
- RENDER_TRI( ELT(start), ELT(j-1), ELT(j) );
- }
- }
-
- POSTFIX;
-}
-
-
-static void TAG(render_poly)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j = start+2;
- LOCAL_VARS;
- (void) flags;
-
- INIT(GL_POLYGON);
- if (NEED_EDGEFLAG_SETUP) {
- GLboolean efstart = EDGEFLAG_GET( ELT(start) );
- GLboolean efcount = EDGEFLAG_GET( ELT(count-1) );
-
- /* If the primitive does not begin here, the first edge
- * is non-boundary.
- */
- if (!TEST_PRIM_BEGIN(flags))
- EDGEFLAG_SET( ELT(start), GL_FALSE );
-
- /* If the primitive does not end here, the final edge is
- * non-boundary.
- */
- if (!TEST_PRIM_END(flags))
- EDGEFLAG_SET( ELT(count-1), GL_FALSE );
-
- /* Draw the first triangles (possibly zero)
- */
- if (j<count-1) {
- GLboolean ef = EDGEFLAG_GET( ELT(j) );
- EDGEFLAG_SET( ELT(j), GL_FALSE );
- RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
- EDGEFLAG_SET( ELT(j), ef );
- j++;
-
- /* Don't render the first edge again:
- */
- EDGEFLAG_SET( ELT(start), GL_FALSE );
-
- for (;j<count-1;j++) {
- GLboolean efj = EDGEFLAG_GET( ELT(j) );
- EDGEFLAG_SET( ELT(j), GL_FALSE );
- RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
- EDGEFLAG_SET( ELT(j), efj );
- }
- }
-
- /* Draw the last or only triangle
- */
- if (j < count)
- RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
-
- /* Restore the first and last edgeflags:
- */
- EDGEFLAG_SET( ELT(count-1), efcount );
- EDGEFLAG_SET( ELT(start), efstart );
-
- if (TEST_PRIM_END(flags)) {
- RESET_STIPPLE;
- }
- }
- else {
- for (j=start+2;j<count;j++) {
- RENDER_TRI( ELT(j-1), ELT(j), ELT(start) );
- }
- }
- POSTFIX;
-}
-
-static void TAG(render_quads)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- LOCAL_VARS;
- (void) flags;
-
- INIT(GL_QUADS);
- if (NEED_EDGEFLAG_SETUP) {
- for (j=start+3; j<count; j+=4) {
- /* Use user-specified edgeflags for quads.
- */
- RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
- RESET_STIPPLE;
- }
- } else {
- for (j=start+3; j<count; j+=4) {
- RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
- }
- }
- POSTFIX;
-}
-
-static void TAG(render_quad_strip)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- GLuint j;
- LOCAL_VARS;
- (void) flags;
-
- INIT(GL_QUAD_STRIP);
- if (NEED_EDGEFLAG_SETUP) {
- for (j=start+3;j<count;j+=2) {
- /* All edges are boundary. Set edgeflags to 1, draw the
- * quad, and restore them to the original values.
- */
- GLboolean ef3 = EDGEFLAG_GET( ELT(j-3) );
- GLboolean ef2 = EDGEFLAG_GET( ELT(j-2) );
- GLboolean ef1 = EDGEFLAG_GET( ELT(j-1) );
- GLboolean ef = EDGEFLAG_GET( ELT(j) );
- EDGEFLAG_SET( ELT(j-3), GL_TRUE );
- EDGEFLAG_SET( ELT(j-2), GL_TRUE );
- EDGEFLAG_SET( ELT(j-1), GL_TRUE );
- EDGEFLAG_SET( ELT(j), GL_TRUE );
- RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
- EDGEFLAG_SET( ELT(j-3), ef3 );
- EDGEFLAG_SET( ELT(j-2), ef2 );
- EDGEFLAG_SET( ELT(j-1), ef1 );
- EDGEFLAG_SET( ELT(j), ef );
- RESET_STIPPLE;
- }
- } else {
- for (j=start+3;j<count;j+=2) {
- RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
- }
- }
- POSTFIX;
-}
-
-static void TAG(render_noop)( GLcontext *ctx,
- GLuint start,
- GLuint count,
- GLuint flags )
-{
- (void)(ctx && start && count && flags);
-}
-
-RENDER_TAB_QUALIFIER void (*TAG(render_tab)[GL_POLYGON+2])(GLcontext *,
- GLuint,
- GLuint,
- GLuint) =
-{
- TAG(render_points),
- TAG(render_lines),
- TAG(render_line_loop),
- TAG(render_line_strip),
- TAG(render_triangles),
- TAG(render_tri_strip),
- TAG(render_tri_fan),
- TAG(render_quads),
- TAG(render_quad_strip),
- TAG(render_poly),
- TAG(render_noop),
-};
-
-
-
-#ifndef PRESERVE_VB_DEFS
-#undef RENDER_TRI
-#undef RENDER_QUAD
-#undef RENDER_LINE
-#undef RENDER_POINTS
-#undef LOCAL_VARS
-#undef INIT
-#undef POSTFIX
-#undef RESET_STIPPLE
-#undef DBG
-#undef ELT
-#undef RENDER_TAB_QUALIFIER
-#endif
-
-#ifndef PRESERVE_TAG
-#undef TAG
-#endif
-
-#undef PRESERVE_VB_DEFS
-#undef PRESERVE_TAG
+++ /dev/null
-#ifndef DO_DEBUG_VERTS
-#define DO_DEBUG_VERTS 0
-#endif
-
-#ifndef PRINT_VERTEX
-#define PRINT_VERTEX(x)
-#endif
-
-#if defined(USE_X86_ASM)
-#define COPY_DWORDS( j, vb, vertsize, v ) \
-do { \
- int __tmp; \
- __asm__ __volatile__( "rep ; movsl" \
- : "=%c" (j), "=D" (vb), "=S" (__tmp) \
- : "0" (vertsize), \
- "D" ((long)vb), \
- "S" ((long)v) ); \
-} while (0)
-#else
-#define COPY_DWORDS( j, vb, vertsize, v ) \
-do { \
- for ( j = 0 ; j < vertsize ; j++ ) \
- vb[j] = ((GLuint *)v)[j]; \
- vb += vertsize; \
-} while (0)
-#endif
-
-
-
-#if HAVE_QUADS
-static __inline void TAG(quad)( CTX_ARG,
- VERTEX *v0,
- VERTEX *v1,
- VERTEX *v2,
- VERTEX *v3 )
-{
- GLuint vertsize = GET_VERTEX_DWORDS();
- GLuint *vb = (GLuint *)ALLOC_VERTS( 4, vertsize);
- GLuint j;
-
- if (DO_DEBUG_VERTS) {
- fprintf(stderr, "%s\n", __FUNCTION__);
- PRINT_VERTEX(v0);
- PRINT_VERTEX(v1);
- PRINT_VERTEX(v2);
- PRINT_VERTEX(v3);
- }
-
- COPY_DWORDS( j, vb, vertsize, v0 );
- COPY_DWORDS( j, vb, vertsize, v1 );
- COPY_DWORDS( j, vb, vertsize, v2 );
- COPY_DWORDS( j, vb, vertsize, v3 );
-}
-#else
-static __inline void TAG(quad)( CTX_ARG,
- VERTEX *v0,
- VERTEX *v1,
- VERTEX *v2,
- VERTEX *v3 )
-{
- GLuint vertsize = GET_VERTEX_DWORDS();
- GLuint *vb = (GLuint *)ALLOC_VERTS( 6, vertsize);
- GLuint j;
-
- if (DO_DEBUG_VERTS) {
- fprintf(stderr, "%s\n", __FUNCTION__);
- PRINT_VERTEX(v0);
- PRINT_VERTEX(v1);
- PRINT_VERTEX(v2);
- PRINT_VERTEX(v3);
- }
-
- COPY_DWORDS( j, vb, vertsize, v0 );
- COPY_DWORDS( j, vb, vertsize, v1 );
- COPY_DWORDS( j, vb, vertsize, v3 );
- COPY_DWORDS( j, vb, vertsize, v1 );
- COPY_DWORDS( j, vb, vertsize, v2 );
- COPY_DWORDS( j, vb, vertsize, v3 );
-}
-#endif
-
-
-static __inline void TAG(triangle)( CTX_ARG,
- VERTEX *v0,
- VERTEX *v1,
- VERTEX *v2 )
-{
- GLuint vertsize = GET_VERTEX_DWORDS();
- GLuint *vb = (GLuint *)ALLOC_VERTS( 3, vertsize);
- GLuint j;
-
- if (DO_DEBUG_VERTS) {
- fprintf(stderr, "%s\n", __FUNCTION__);
- PRINT_VERTEX(v0);
- PRINT_VERTEX(v1);
- PRINT_VERTEX(v2);
- }
-
- COPY_DWORDS( j, vb, vertsize, v0 );
- COPY_DWORDS( j, vb, vertsize, v1 );
- COPY_DWORDS( j, vb, vertsize, v2 );
-}
-
-
-#if HAVE_LINES
-static __inline void TAG(line)( CTX_ARG,
- VERTEX *v0,
- VERTEX *v1 )
-{
- GLuint vertsize = GET_VERTEX_DWORDS();
- GLuint *vb = (GLuint *)ALLOC_VERTS( 2, vertsize);
- GLuint j;
-
- COPY_DWORDS( j, vb, vertsize, v0 );
- COPY_DWORDS( j, vb, vertsize, v1 );
-}
-#endif
-
-#if HAVE_POINTS
-static __inline void TAG(point)( CTX_ARG,
- VERTEX *v0 )
-{
- GLuint vertsize = GET_VERTEX_DWORDS();
- GLuint *vb = (GLuint *)ALLOC_VERTS( 1, vertsize);
- int j;
-
- COPY_DWORDS( j, vb, vertsize, v0 );
-}
-#endif
-
-
-static void TAG(fast_clipped_poly)( GLcontext *ctx, const GLuint *elts,
- GLuint n )
-{
- LOCAL_VARS
- GLuint vertsize = GET_VERTEX_DWORDS();
- GLuint *vb = (GLuint *)ALLOC_VERTS( (n-2) * 3, vertsize );
- const GLuint *start = (const GLuint *)VERT(elts[0]);
- int i,j;
-
- if (DO_DEBUG_VERTS) {
- fprintf(stderr, "%s\n", __FUNCTION__);
- PRINT_VERTEX(VERT(elts[0]));
- PRINT_VERTEX(VERT(elts[1]));
- }
-
- for (i = 2 ; i < n ; i++) {
- if (DO_DEBUG_VERTS) {
- PRINT_VERTEX(VERT(elts[i]));
- }
-
- COPY_DWORDS( j, vb, vertsize, VERT(elts[i-1]) );
- COPY_DWORDS( j, vb, vertsize, VERT(elts[i]) );
- COPY_DWORDS( j, vb, vertsize, start );
- }
-}
-
+++ /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@tungstengraphics.com>
- */
-
-
-/* Template for building functions to plug into the driver interface
- * of t_vb_render.c:
- * ctx->Driver.QuadFunc
- * ctx->Driver.TriangleFunc
- * ctx->Driver.LineFunc
- * ctx->Driver.PointsFunc
- *
- * DO_TWOSIDE: Plug back-color values from the VB into backfacing triangles,
- * and restore vertices afterwards.
- * DO_OFFSET: Calculate offset for triangles and adjust vertices. Restore
- * vertices after rendering.
- * DO_FLAT: For hardware without native flatshading, copy provoking colors
- * into the other vertices. Restore after rendering.
- * DO_UNFILLED: Decompose triangles to lines and points where appropriate.
- *
- * HAVE_RGBA: Vertices have rgba values (otherwise index values).
- * HAVE_SPEC: Vertices have secondary rgba values.
- *
- * VERT_X(v): Alias for vertex x value.
- * VERT_Y(v): Alias for vertex y value.
- * VERT_Z(v): Alias for vertex z value.
- * DEPTH_SCALE: Scale for offset.
- *
- * VERTEX: Hardware vertex type.
- * GET_VERTEX(n): Retreive vertex with index n.
- * AREA_IS_CCW(a): Return true if triangle with signed area a is ccw.
- *
- * VERT_SET_RGBA: Assign vertex rgba from VB color.
- * VERT_COPY_RGBA: Copy vertex rgba another vertex.
- * VERT_SAVE_RGBA: Save vertex rgba to a local variable.
- * VERT_RESTORE_RGBA: Restore vertex rgba from a local variable.
- * --> Similar for IND and SPEC.
- *
- * LOCAL_VARS(n): (At least) define local vars for save/restore rgba.
- *
- */
-
-#if HAVE_RGBA
-#define VERT_SET_IND( v, c ) (void) c
-#define VERT_COPY_IND( v0, v1 )
-#define VERT_SAVE_IND( idx )
-#define VERT_RESTORE_IND( idx )
-#if HAVE_BACK_COLORS
-#define VERT_SET_RGBA( v, c )
-#endif
-#else
-#define VERT_SET_RGBA( v, c ) (void) c
-#define VERT_COPY_RGBA( v0, v1 )
-#define VERT_SAVE_RGBA( idx )
-#define VERT_RESTORE_RGBA( idx )
-#if HAVE_BACK_COLORS
-#define VERT_SET_IND( v, c )
-#endif
-#endif
-
-#if !HAVE_SPEC
-#define VERT_SET_SPEC( v, c ) (void) c
-#define VERT_COPY_SPEC( v0, v1 )
-#define VERT_SAVE_SPEC( idx )
-#define VERT_RESTORE_SPEC( idx )
-#if HAVE_BACK_COLORS
-#define VERT_COPY_SPEC1( v )
-#endif
-#else
-#if HAVE_BACK_COLORS
-#define VERT_SET_SPEC( v, c )
-#endif
-#endif
-
-#if !HAVE_BACK_COLORS
-#define VERT_COPY_SPEC1( v )
-#define VERT_COPY_IND1( v )
-#define VERT_COPY_RGBA1( v )
-#endif
-
-#ifndef INSANE_VERTICES
-#define VERT_SET_Z(v,val) VERT_Z(v) = val
-#define VERT_Z_ADD(v,val) VERT_Z(v) += val
-#endif
-
-#if DO_TRI
-static void TAG(triangle)( GLcontext *ctx, GLuint e0, GLuint e1, GLuint e2 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
- VERTEX *v[3];
- GLfloat offset;
- GLfloat z[3];
- GLenum mode = GL_FILL;
- GLuint facing;
- LOCAL_VARS(3);
-
-/* fprintf(stderr, "%s\n", __FUNCTION__); */
-
- v[0] = (VERTEX *)GET_VERTEX(e0);
- v[1] = (VERTEX *)GET_VERTEX(e1);
- v[2] = (VERTEX *)GET_VERTEX(e2);
-
- if (DO_TWOSIDE || DO_OFFSET || DO_UNFILLED)
- {
- GLfloat ex = VERT_X(v[0]) - VERT_X(v[2]);
- GLfloat ey = VERT_Y(v[0]) - VERT_Y(v[2]);
- GLfloat fx = VERT_X(v[1]) - VERT_X(v[2]);
- GLfloat fy = VERT_Y(v[1]) - VERT_Y(v[2]);
- GLfloat cc = ex*fy - ey*fx;
-
- if (DO_TWOSIDE || DO_UNFILLED)
- {
- facing = AREA_IS_CCW( cc ) ^ ctx->Polygon._FrontBit;
-
- if (DO_UNFILLED) {
- if (facing) {
- mode = ctx->Polygon.BackMode;
- if (ctx->Polygon.CullFlag &&
- ctx->Polygon.CullFaceMode != GL_FRONT) {
- return;
- }
- } else {
- mode = ctx->Polygon.FrontMode;
- if (ctx->Polygon.CullFlag &&
- ctx->Polygon.CullFaceMode != GL_BACK) {
- return;
- }
- }
- }
-
- if (DO_TWOSIDE && facing == 1)
- {
- if (HAVE_RGBA) {
- if (HAVE_BACK_COLORS) {
- if (!DO_FLAT) {
- VERT_SAVE_RGBA( 0 );
- VERT_SAVE_RGBA( 1 );
- VERT_COPY_RGBA1( v[0] );
- VERT_COPY_RGBA1( v[1] );
- }
- VERT_SAVE_RGBA( 2 );
- VERT_COPY_RGBA1( v[2] );
- if (HAVE_SPEC) {
- if (!DO_FLAT) {
- VERT_SAVE_SPEC( 0 );
- VERT_SAVE_SPEC( 1 );
- VERT_COPY_SPEC1( v[0] );
- VERT_COPY_SPEC1( v[1] );
- }
- VERT_SAVE_SPEC( 2 );
- VERT_COPY_SPEC1( v[2] );
- }
- }
- else {
- GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data;
- ASSERT(VB->ColorPtr[1]->stride == 4*sizeof(GLfloat));
- (void) vbcolor;
-
- if (!DO_FLAT) {
- VERT_SAVE_RGBA( 0 );
- VERT_SAVE_RGBA( 1 );
- VERT_SET_RGBA( v[0], vbcolor[e0] );
- VERT_SET_RGBA( v[1], vbcolor[e1] );
- }
- VERT_SAVE_RGBA( 2 );
- VERT_SET_RGBA( v[2], vbcolor[e2] );
-
- if (HAVE_SPEC && VB->SecondaryColorPtr[1]) {
- GLfloat (*vbspec)[4] = VB->SecondaryColorPtr[1]->data;
-
- if (!DO_FLAT) {
- VERT_SAVE_SPEC( 0 );
- VERT_SAVE_SPEC( 1 );
- VERT_SET_SPEC( v[0], vbspec[e0] );
- VERT_SET_SPEC( v[1], vbspec[e1] );
- }
- VERT_SAVE_SPEC( 2 );
- VERT_SET_SPEC( v[2], vbspec[e2] );
- }
- }
- }
- else {
- GLfloat (*vbindex) = (GLfloat *)VB->IndexPtr[1]->data;
- if (!DO_FLAT) {
- VERT_SAVE_IND( 0 );
- VERT_SAVE_IND( 1 );
- VERT_SET_IND( v[0], vbindex[e0] );
- VERT_SET_IND( v[1], vbindex[e1] );
- }
- VERT_SAVE_IND( 2 );
- VERT_SET_IND( v[2], vbindex[e2] );
- }
- }
- }
-
-
- if (DO_OFFSET)
- {
- offset = ctx->Polygon.OffsetUnits * DEPTH_SCALE;
- z[0] = VERT_Z(v[0]);
- z[1] = VERT_Z(v[1]);
- z[2] = VERT_Z(v[2]);
- if (cc * cc > 1e-16) {
- GLfloat ic = 1.0 / cc;
- GLfloat ez = z[0] - z[2];
- GLfloat fz = z[1] - z[2];
- GLfloat a = ey*fz - ez*fy;
- GLfloat b = ez*fx - ex*fz;
- GLfloat ac = a * ic;
- GLfloat bc = b * ic;
- if ( ac < 0.0f ) ac = -ac;
- if ( bc < 0.0f ) bc = -bc;
- offset += MAX2( ac, bc ) * ctx->Polygon.OffsetFactor;
- }
- offset *= ctx->MRD;
- }
- }
-
- if (DO_FLAT) {
- if (HAVE_RGBA) {
- VERT_SAVE_RGBA( 0 );
- VERT_SAVE_RGBA( 1 );
- VERT_COPY_RGBA( v[0], v[2] );
- VERT_COPY_RGBA( v[1], v[2] );
- if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
- VERT_SAVE_SPEC( 0 );
- VERT_SAVE_SPEC( 1 );
- VERT_COPY_SPEC( v[0], v[2] );
- VERT_COPY_SPEC( v[1], v[2] );
- }
- }
- else {
- VERT_SAVE_IND( 0 );
- VERT_SAVE_IND( 1 );
- VERT_COPY_IND( v[0], v[2] );
- VERT_COPY_IND( v[1], v[2] );
- }
- }
-
- if (mode == GL_POINT) {
- if (DO_OFFSET && ctx->Polygon.OffsetPoint) {
- VERT_Z_ADD(v[0], offset);
- VERT_Z_ADD(v[1], offset);
- VERT_Z_ADD(v[2], offset);
- }
- UNFILLED_TRI( ctx, GL_POINT, e0, e1, e2 );
- } else if (mode == GL_LINE) {
- if (DO_OFFSET && ctx->Polygon.OffsetLine) {
- VERT_Z_ADD(v[0], offset);
- VERT_Z_ADD(v[1], offset);
- VERT_Z_ADD(v[2], offset);
- }
- UNFILLED_TRI( ctx, GL_LINE, e0, e1, e2 );
- } else {
- if (DO_OFFSET && ctx->Polygon.OffsetFill) {
- VERT_Z_ADD(v[0], offset);
- VERT_Z_ADD(v[1], offset);
- VERT_Z_ADD(v[2], offset);
- }
- if (DO_UNFILLED)
- RASTERIZE( GL_TRIANGLES );
- TRI( v[0], v[1], v[2] );
- }
-
- if (DO_OFFSET)
- {
- VERT_SET_Z(v[0], z[0]);
- VERT_SET_Z(v[1], z[1]);
- VERT_SET_Z(v[2], z[2]);
- }
-
- if (DO_TWOSIDE && facing == 1)
- {
- if (HAVE_RGBA) {
- if (!DO_FLAT) {
- VERT_RESTORE_RGBA( 0 );
- VERT_RESTORE_RGBA( 1 );
- }
- VERT_RESTORE_RGBA( 2 );
- if (HAVE_SPEC) {
- if (!DO_FLAT) {
- VERT_RESTORE_SPEC( 0 );
- VERT_RESTORE_SPEC( 1 );
- }
- VERT_RESTORE_SPEC( 2 );
- }
- }
- else {
- if (!DO_FLAT) {
- VERT_RESTORE_IND( 0 );
- VERT_RESTORE_IND( 1 );
- }
- VERT_RESTORE_IND( 2 );
- }
- }
-
-
- if (DO_FLAT) {
- if (HAVE_RGBA) {
- VERT_RESTORE_RGBA( 0 );
- VERT_RESTORE_RGBA( 1 );
- if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
- VERT_RESTORE_SPEC( 0 );
- VERT_RESTORE_SPEC( 1 );
- }
- }
- else {
- VERT_RESTORE_IND( 0 );
- VERT_RESTORE_IND( 1 );
- }
- }
-}
-#endif
-
-#if DO_QUAD
-#if DO_FULL_QUAD
-static void TAG(quad)( GLcontext *ctx,
- GLuint e0, GLuint e1, GLuint e2, GLuint e3 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
- VERTEX *v[4];
- GLfloat offset;
- GLfloat z[4];
- GLenum mode = GL_FILL;
- GLuint facing;
- LOCAL_VARS(4);
-
- v[0] = (VERTEX *)GET_VERTEX(e0);
- v[1] = (VERTEX *)GET_VERTEX(e1);
- v[2] = (VERTEX *)GET_VERTEX(e2);
- v[3] = (VERTEX *)GET_VERTEX(e3);
-
- if (DO_TWOSIDE || DO_OFFSET || DO_UNFILLED)
- {
- GLfloat ex = VERT_X(v[2]) - VERT_X(v[0]);
- GLfloat ey = VERT_Y(v[2]) - VERT_Y(v[0]);
- GLfloat fx = VERT_X(v[3]) - VERT_X(v[1]);
- GLfloat fy = VERT_Y(v[3]) - VERT_Y(v[1]);
- GLfloat cc = ex*fy - ey*fx;
-
- if (DO_TWOSIDE || DO_UNFILLED)
- {
- facing = AREA_IS_CCW( cc ) ^ ctx->Polygon._FrontBit;
-
- if (DO_UNFILLED) {
- if (facing) {
- mode = ctx->Polygon.BackMode;
- if (ctx->Polygon.CullFlag &&
- ctx->Polygon.CullFaceMode != GL_FRONT) {
- return;
- }
- } else {
- mode = ctx->Polygon.FrontMode;
- if (ctx->Polygon.CullFlag &&
- ctx->Polygon.CullFaceMode != GL_BACK) {
- return;
- }
- }
- }
-
- if (DO_TWOSIDE && facing == 1)
- {
- if (HAVE_RGBA) {
- GLfloat (*vbcolor)[4] = VB->ColorPtr[1]->data;
- (void)vbcolor;
-
- if (HAVE_BACK_COLORS) {
- if (!DO_FLAT) {
- VERT_SAVE_RGBA( 0 );
- VERT_SAVE_RGBA( 1 );
- VERT_SAVE_RGBA( 2 );
- VERT_COPY_RGBA1( v[0] );
- VERT_COPY_RGBA1( v[1] );
- VERT_COPY_RGBA1( v[2] );
- }
- VERT_SAVE_RGBA( 3 );
- VERT_COPY_RGBA1( v[3] );
- if (HAVE_SPEC) {
- if (!DO_FLAT) {
- VERT_SAVE_SPEC( 0 );
- VERT_SAVE_SPEC( 1 );
- VERT_SAVE_SPEC( 2 );
- VERT_COPY_SPEC1( v[0] );
- VERT_COPY_SPEC1( v[1] );
- VERT_COPY_SPEC1( v[2] );
- }
- VERT_SAVE_SPEC( 3 );
- VERT_COPY_SPEC1( v[3] );
- }
- }
- else {
- if (!DO_FLAT) {
- VERT_SAVE_RGBA( 0 );
- VERT_SAVE_RGBA( 1 );
- VERT_SAVE_RGBA( 2 );
- VERT_SET_RGBA( v[0], vbcolor[e0] );
- VERT_SET_RGBA( v[1], vbcolor[e1] );
- VERT_SET_RGBA( v[2], vbcolor[e2] );
- }
- VERT_SAVE_RGBA( 3 );
- VERT_SET_RGBA( v[3], vbcolor[e3] );
-
- if (HAVE_SPEC && VB->SecondaryColorPtr[1]) {
- GLfloat (*vbspec)[4] = VB->SecondaryColorPtr[1]->data;
- ASSERT(VB->SecondaryColorPtr[1]->stride==4*sizeof(GLfloat));
-
- if (!DO_FLAT) {
- VERT_SAVE_SPEC( 0 );
- VERT_SAVE_SPEC( 1 );
- VERT_SAVE_SPEC( 2 );
- VERT_SET_SPEC( v[0], vbspec[e0] );
- VERT_SET_SPEC( v[1], vbspec[e1] );
- VERT_SET_SPEC( v[2], vbspec[e2] );
- }
- VERT_SAVE_SPEC( 3 );
- VERT_SET_SPEC( v[3], vbspec[e3] );
- }
- }
- }
- else {
- GLfloat *vbindex = (GLfloat *)VB->IndexPtr[1]->data;
- if (!DO_FLAT) {
- VERT_SAVE_IND( 0 );
- VERT_SAVE_IND( 1 );
- VERT_SAVE_IND( 2 );
- VERT_SET_IND( v[0], vbindex[e0] );
- VERT_SET_IND( v[1], vbindex[e1] );
- VERT_SET_IND( v[2], vbindex[e2] );
- }
- VERT_SAVE_IND( 3 );
- VERT_SET_IND( v[3], vbindex[e3] );
- }
- }
- }
-
-
- if (DO_OFFSET)
- {
- offset = ctx->Polygon.OffsetUnits * DEPTH_SCALE;
- z[0] = VERT_Z(v[0]);
- z[1] = VERT_Z(v[1]);
- z[2] = VERT_Z(v[2]);
- z[3] = VERT_Z(v[3]);
- if (cc * cc > 1e-16) {
- GLfloat ez = z[2] - z[0];
- GLfloat fz = z[3] - z[1];
- GLfloat a = ey*fz - ez*fy;
- GLfloat b = ez*fx - ex*fz;
- GLfloat ic = 1.0 / cc;
- GLfloat ac = a * ic;
- GLfloat bc = b * ic;
- if ( ac < 0.0f ) ac = -ac;
- if ( bc < 0.0f ) bc = -bc;
- offset += MAX2( ac, bc ) * ctx->Polygon.OffsetFactor;
- }
- offset *= ctx->MRD;
- }
- }
-
- if (DO_FLAT) {
- if (HAVE_RGBA) {
- VERT_SAVE_RGBA( 0 );
- VERT_SAVE_RGBA( 1 );
- VERT_SAVE_RGBA( 2 );
- VERT_COPY_RGBA( v[0], v[3] );
- VERT_COPY_RGBA( v[1], v[3] );
- VERT_COPY_RGBA( v[2], v[3] );
- if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
- VERT_SAVE_SPEC( 0 );
- VERT_SAVE_SPEC( 1 );
- VERT_SAVE_SPEC( 2 );
- VERT_COPY_SPEC( v[0], v[3] );
- VERT_COPY_SPEC( v[1], v[3] );
- VERT_COPY_SPEC( v[2], v[3] );
- }
- }
- else {
- VERT_SAVE_IND( 0 );
- VERT_SAVE_IND( 1 );
- VERT_SAVE_IND( 2 );
- VERT_COPY_IND( v[0], v[3] );
- VERT_COPY_IND( v[1], v[3] );
- VERT_COPY_IND( v[2], v[3] );
- }
- }
-
- if (mode == GL_POINT) {
- if (( DO_OFFSET) && ctx->Polygon.OffsetPoint) {
- VERT_Z_ADD(v[0], offset);
- VERT_Z_ADD(v[1], offset);
- VERT_Z_ADD(v[2], offset);
- VERT_Z_ADD(v[3], offset);
- }
- UNFILLED_QUAD( ctx, GL_POINT, e0, e1, e2, e3 );
- } else if (mode == GL_LINE) {
- if (DO_OFFSET && ctx->Polygon.OffsetLine) {
- VERT_Z_ADD(v[0], offset);
- VERT_Z_ADD(v[1], offset);
- VERT_Z_ADD(v[2], offset);
- VERT_Z_ADD(v[3], offset);
- }
- UNFILLED_QUAD( ctx, GL_LINE, e0, e1, e2, e3 );
- } else {
- if (DO_OFFSET && ctx->Polygon.OffsetFill) {
- VERT_Z_ADD(v[0], offset);
- VERT_Z_ADD(v[1], offset);
- VERT_Z_ADD(v[2], offset);
- VERT_Z_ADD(v[3], offset);
- }
- RASTERIZE( GL_TRIANGLES );
- QUAD( (v[0]), (v[1]), (v[2]), (v[3]) );
- }
-
- if (DO_OFFSET)
- {
- VERT_SET_Z(v[0], z[0]);
- VERT_SET_Z(v[1], z[1]);
- VERT_SET_Z(v[2], z[2]);
- VERT_SET_Z(v[3], z[3]);
- }
-
- if (DO_TWOSIDE && facing == 1)
- {
- if (HAVE_RGBA) {
- if (!DO_FLAT) {
- VERT_RESTORE_RGBA( 0 );
- VERT_RESTORE_RGBA( 1 );
- VERT_RESTORE_RGBA( 2 );
- }
- VERT_RESTORE_RGBA( 3 );
- if (HAVE_SPEC) {
- if (!DO_FLAT) {
- VERT_RESTORE_SPEC( 0 );
- VERT_RESTORE_SPEC( 1 );
- VERT_RESTORE_SPEC( 2 );
- }
- VERT_RESTORE_SPEC( 3 );
- }
- }
- else {
- if (!DO_FLAT) {
- VERT_RESTORE_IND( 0 );
- VERT_RESTORE_IND( 1 );
- VERT_RESTORE_IND( 2 );
- }
- VERT_RESTORE_IND( 3 );
- }
- }
-
-
- if (DO_FLAT) {
- if (HAVE_RGBA) {
- VERT_RESTORE_RGBA( 0 );
- VERT_RESTORE_RGBA( 1 );
- VERT_RESTORE_RGBA( 2 );
- if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
- VERT_RESTORE_SPEC( 0 );
- VERT_RESTORE_SPEC( 1 );
- VERT_RESTORE_SPEC( 2 );
- }
- }
- else {
- VERT_RESTORE_IND( 0 );
- VERT_RESTORE_IND( 1 );
- VERT_RESTORE_IND( 2 );
- }
- }
-}
-#else
-static void TAG(quad)( GLcontext *ctx, GLuint e0,
- GLuint e1, GLuint e2, GLuint e3 )
-{
- if (DO_UNFILLED) {
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte ef1 = VB->EdgeFlag[e1];
- GLubyte ef3 = VB->EdgeFlag[e3];
- VB->EdgeFlag[e1] = 0;
- TAG(triangle)( ctx, e0, e1, e3 );
- VB->EdgeFlag[e1] = ef1;
- VB->EdgeFlag[e3] = 0;
- TAG(triangle)( ctx, e1, e2, e3 );
- VB->EdgeFlag[e3] = ef3;
- } else {
- TAG(triangle)( ctx, e0, e1, e3 );
- TAG(triangle)( ctx, e1, e2, e3 );
- }
-}
-#endif
-#endif
-
-#if DO_LINE
-static void TAG(line)( GLcontext *ctx, GLuint e0, GLuint e1 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- VERTEX *v[2];
- LOCAL_VARS(2);
-
- v[0] = (VERTEX *)GET_VERTEX(e0);
- v[1] = (VERTEX *)GET_VERTEX(e1);
-
- if (DO_FLAT) {
- if (HAVE_RGBA) {
- VERT_SAVE_RGBA( 0 );
- VERT_COPY_RGBA( v[0], v[1] );
- if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
- VERT_SAVE_SPEC( 0 );
- VERT_COPY_SPEC( v[0], v[1] );
- }
- }
- else {
- VERT_SAVE_IND( 0 );
- VERT_COPY_IND( v[0], v[1] );
- }
- }
-
- LINE( v[0], v[1] );
-
- if (DO_FLAT) {
- if (HAVE_RGBA) {
- VERT_RESTORE_RGBA( 0 );
-
- if (HAVE_SPEC && VB->SecondaryColorPtr[0]) {
- VERT_RESTORE_SPEC( 0 );
- }
- }
- else {
- VERT_RESTORE_IND( 0 );
- }
- }
-}
-#endif
-
-#if DO_POINTS
-static void TAG(points)( GLcontext *ctx, GLuint first, GLuint last )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
- int i;
- LOCAL_VARS(1);
-
- if (VB->Elts == 0) {
- for ( i = first ; i < last ; i++ ) {
- if ( VB->ClipMask[i] == 0 ) {
- VERTEX *v = (VERTEX *)GET_VERTEX(i);
- POINT( v );
- }
- }
- } else {
- for ( i = first ; i < last ; i++ ) {
- GLuint e = VB->Elts[i];
- if ( VB->ClipMask[e] == 0 ) {
- VERTEX *v = (VERTEX *)GET_VERTEX(e);
- POINT( v );
- }
- }
- }
-}
-#endif
-
-static void TAG(init)( void )
-{
-#if DO_QUAD
- TAB[IND].quad = TAG(quad);
-#endif
-#if DO_TRI
- TAB[IND].triangle = TAG(triangle);
-#endif
-#if DO_LINE
- TAB[IND].line = TAG(line);
-#endif
-#if DO_POINTS
- TAB[IND].points = TAG(points);
-#endif
-}
-
-#undef IND
-#undef TAG
-
-#if HAVE_RGBA
-#undef VERT_SET_IND
-#undef VERT_COPY_IND
-#undef VERT_SAVE_IND
-#undef VERT_RESTORE_IND
-#if HAVE_BACK_COLORS
-#undef VERT_SET_RGBA
-#endif
-#else
-#undef VERT_SET_RGBA
-#undef VERT_COPY_RGBA
-#undef VERT_SAVE_RGBA
-#undef VERT_RESTORE_RGBA
-#if HAVE_BACK_COLORS
-#undef VERT_SET_IND
-#endif
-#endif
-
-#if !HAVE_SPEC
-#undef VERT_SET_SPEC
-#undef VERT_COPY_SPEC
-#undef VERT_SAVE_SPEC
-#undef VERT_RESTORE_SPEC
-#if HAVE_BACK_COLORS
-#undef VERT_COPY_SPEC1
-#endif
-#else
-#if HAVE_BACK_COLORS
-#undef VERT_SET_SPEC
-#endif
-#endif
-
-#if !HAVE_BACK_COLORS
-#undef VERT_COPY_SPEC1
-#undef VERT_COPY_IND1
-#undef VERT_COPY_RGBA1
-#endif
-
-#ifndef INSANE_VERTICES
-#undef VERT_SET_Z
-#undef VERT_Z_ADD
-#endif
+++ /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@tungstengraphics.com>
- */
-
-#if HAVE_RGBA
-#define VERT_SET_IND( v, c )
-#define VERT_COPY_IND( v0, v1 )
-#define VERT_SAVE_IND( idx )
-#define VERT_RESTORE_IND( idx )
-#endif
-
-#if !HAVE_SPEC
-#define VERT_SET_SPEC( v, c )
-#define VERT_COPY_SPEC( v0, v1 )
-#define VERT_SAVE_SPEC( idx )
-#define VERT_RESTORE_SPEC( idx )
-#endif
-
-static void TAG(unfilled_tri)( GLcontext *ctx,
- GLenum mode,
- GLuint e0, GLuint e1, GLuint e2 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte *ef = VB->EdgeFlag;
- VERTEX *v[3];
- LOCAL_VARS(3);
-
- v[0] = (VERTEX *)GET_VERTEX(e0);
- v[1] = (VERTEX *)GET_VERTEX(e1);
- v[2] = (VERTEX *)GET_VERTEX(e2);
-
- if ((ctx->_TriangleCaps & DD_FLATSHADE) && HAVE_HW_FLATSHADE) {
- if (HAVE_RGBA) {
- VERT_SAVE_RGBA(0);
- VERT_SAVE_RGBA(1);
- VERT_COPY_RGBA(v[0], v[2]);
- VERT_COPY_RGBA(v[1], v[2]);
-
- if (HAVE_SPEC) {
- VERT_SAVE_SPEC(0);
- VERT_SAVE_SPEC(1);
- VERT_COPY_SPEC(v[0], v[2]);
- VERT_COPY_SPEC(v[1], v[2]);
- }
- } else {
- VERT_SAVE_IND(0);
- VERT_SAVE_IND(1);
- VERT_COPY_IND(v[0], v[2]);
- VERT_COPY_IND(v[1], v[2]);
- }
- }
-
-/* fprintf(stderr, "%s %s %d %d %d\n", __FUNCTION__, */
-/* _mesa_lookup_enum_by_nr( mode ), */
-/* ef[e0], ef[e1], ef[e2]); */
-
- if (mode == GL_POINT) {
- RASTERIZE(GL_POINTS);
- if (ef[e0]) POINT( v[0] );
- if (ef[e1]) POINT( v[1] );
- if (ef[e2]) POINT( v[2] );
- }
- else {
- RASTERIZE(GL_LINES);
- if (RENDER_PRIMITIVE == GL_POLYGON) {
- if (ef[e2]) LINE( v[2], v[0] );
- if (ef[e0]) LINE( v[0], v[1] );
- if (ef[e1]) LINE( v[1], v[2] );
- }
- else {
- if (ef[e0]) LINE( v[0], v[1] );
- if (ef[e1]) LINE( v[1], v[2] );
- if (ef[e2]) LINE( v[2], v[0] );
- }
- }
-
- if ((ctx->_TriangleCaps & DD_FLATSHADE) && HAVE_HW_FLATSHADE) {
- if (HAVE_RGBA) {
- VERT_RESTORE_RGBA(0);
- VERT_RESTORE_RGBA(1);
-
- if (HAVE_SPEC) {
- VERT_RESTORE_SPEC(0);
- VERT_RESTORE_SPEC(1);
- }
- } else {
- VERT_RESTORE_IND(0);
- VERT_RESTORE_IND(1);
- }
- }
-}
-
-
-static void TAG(unfilled_quad)( GLcontext *ctx,
- GLenum mode,
- GLuint e0, GLuint e1,
- GLuint e2, GLuint e3 )
-{
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte *ef = VB->EdgeFlag;
- VERTEX *v[4];
- LOCAL_VARS(4);
-
- v[0] = (VERTEX *)GET_VERTEX(e0);
- v[1] = (VERTEX *)GET_VERTEX(e1);
- v[2] = (VERTEX *)GET_VERTEX(e2);
- v[3] = (VERTEX *)GET_VERTEX(e3);
-
- /* Hardware flatshading breaks down here. If the hardware doesn't
- * support flatshading, this will already have been done:
- */
- if ((ctx->_TriangleCaps & DD_FLATSHADE) && HAVE_HW_FLATSHADE) {
- if (HAVE_RGBA) {
- VERT_SAVE_RGBA(0);
- VERT_SAVE_RGBA(1);
- VERT_SAVE_RGBA(2);
- VERT_COPY_RGBA(v[0], v[3]);
- VERT_COPY_RGBA(v[1], v[3]);
- VERT_COPY_RGBA(v[2], v[3]);
-
- if (HAVE_SPEC) {
- VERT_SAVE_SPEC(0);
- VERT_SAVE_SPEC(1);
- VERT_SAVE_SPEC(2);
- VERT_COPY_SPEC(v[0], v[3]);
- VERT_COPY_SPEC(v[1], v[3]);
- VERT_COPY_SPEC(v[2], v[3]);
- }
- } else {
- VERT_SAVE_IND(0);
- VERT_SAVE_IND(1);
- VERT_SAVE_IND(2);
- VERT_COPY_IND(v[0], v[3]);
- VERT_COPY_IND(v[1], v[3]);
- VERT_COPY_IND(v[2], v[3]);
- }
- }
-
- if (mode == GL_POINT) {
- RASTERIZE(GL_POINTS);
- if (ef[e0]) POINT( v[0] );
- if (ef[e1]) POINT( v[1] );
- if (ef[e2]) POINT( v[2] );
- if (ef[e3]) POINT( v[3] );
- }
- else {
- RASTERIZE(GL_LINES);
- if (ef[e0]) LINE( v[0], v[1] );
- if (ef[e1]) LINE( v[1], v[2] );
- if (ef[e2]) LINE( v[2], v[3] );
- if (ef[e3]) LINE( v[3], v[0] );
- }
-
- if ((ctx->_TriangleCaps & DD_FLATSHADE) && HAVE_HW_FLATSHADE) {
- if (HAVE_RGBA) {
- VERT_RESTORE_RGBA(0);
- VERT_RESTORE_RGBA(1);
- VERT_RESTORE_RGBA(2);
-
- if (HAVE_SPEC) {
- VERT_RESTORE_SPEC(0);
- VERT_RESTORE_SPEC(1);
- VERT_RESTORE_SPEC(2);
- }
- } else {
- VERT_RESTORE_IND(0);
- VERT_RESTORE_IND(1);
- VERT_RESTORE_IND(2);
- }
- }
-}
-
-
-#if HAVE_RGBA
-#undef VERT_SET_IND
-#undef VERT_COPY_IND
-#undef VERT_SAVE_IND
-#undef VERT_RESTORE_IND
-#endif
-
-#if !HAVE_SPEC
-#undef VERT_SET_SPEC
-#undef VERT_COPY_SPEC
-#undef VERT_SAVE_SPEC
-#undef VERT_RESTORE_SPEC
-#endif
-
-#undef TAG
+++ /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@tungstengraphics.com>
- */
-#include "math/m_translate.h"
-
-#if (HAVE_HW_VIEWPORT)
-#define UNVIEWPORT_VARS
-#define UNVIEWPORT_X(x) x
-#define UNVIEWPORT_Y(x) x
-#define UNVIEWPORT_Z(x) x
-#endif
-
-#ifndef LOCALVARS
-#define LOCALVARS
-#endif
-
-#ifndef CHECK_HW_DIVIDE
-#define CHECK_HW_DIVIDE 1
-#endif
-
-/* These don't need to be duplicated, but there's currently nowhere
- * really convenient to put them. Need to build some actual .o files in
- * this directory?
- */
-static void copy_pv_rgba4_spec5( GLcontext *ctx, GLuint edst, GLuint esrc )
-{
- LOCALVARS
- GLubyte *verts = GET_VERTEX_STORE();
- GLuint shift = GET_VERTEX_STRIDE_SHIFT();
- GLuint *dst = (GLuint *)(verts + (edst << shift));
- GLuint *src = (GLuint *)(verts + (esrc << shift));
- dst[4] = src[4];
- dst[5] = src[5];
-}
-
-static void copy_pv_rgba4( GLcontext *ctx, GLuint edst, GLuint esrc )
-{
- LOCALVARS
- GLubyte *verts = GET_VERTEX_STORE();
- GLuint shift = GET_VERTEX_STRIDE_SHIFT();
- GLuint *dst = (GLuint *)(verts + (edst << shift));
- GLuint *src = (GLuint *)(verts + (esrc << shift));
- dst[4] = src[4];
-}
-
-static void copy_pv_rgba3( GLcontext *ctx, GLuint edst, GLuint esrc )
-{
- LOCALVARS
- GLubyte *verts = GET_VERTEX_STORE();
- GLuint shift = GET_VERTEX_STRIDE_SHIFT();
- GLuint *dst = (GLuint *)(verts + (edst << shift));
- GLuint *src = (GLuint *)(verts + (esrc << shift));
- dst[3] = src[3];
-}
-
-
-void TAG(translate_vertex)(GLcontext *ctx,
- const VERTEX *src,
- SWvertex *dst)
-{
- LOCALVARS
- GLuint format = GET_VERTEX_FORMAT();
- GLfloat *s = ctx->Viewport._WindowMap.m;
- UNVIEWPORT_VARS;
-
- if (format == TINY_VERTEX_FORMAT) {
- if (HAVE_HW_VIEWPORT) {
- dst->win[0] = s[0] * src->v.x + s[12];
- dst->win[1] = s[5] * src->v.y + s[13];
- dst->win[2] = s[10] * src->v.z + s[14];
- dst->win[3] = 1.0;
- } else {
- dst->win[0] = UNVIEWPORT_X( src->v.x );
- dst->win[1] = UNVIEWPORT_Y( src->v.y );
- dst->win[2] = UNVIEWPORT_Z( src->v.z );
- dst->win[3] = 1.0;
- }
-
- dst->color[0] = src->tv.color.red;
- dst->color[1] = src->tv.color.green;
- dst->color[2] = src->tv.color.blue;
- dst->color[3] = src->tv.color.alpha;
- }
- else {
- if (HAVE_HW_VIEWPORT) {
- if (HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) {
- GLfloat oow = 1.0 / src->v.w;
- dst->win[0] = s[0] * src->v.x * oow + s[12];
- dst->win[1] = s[5] * src->v.y * oow + s[13];
- dst->win[2] = s[10] * src->v.z * oow + s[14];
- dst->win[3] = oow;
- } else {
- dst->win[0] = s[0] * src->v.x + s[12];
- dst->win[1] = s[5] * src->v.y + s[13];
- dst->win[2] = s[10] * src->v.z + s[14];
- dst->win[3] = src->v.w;
- }
- } else {
- dst->win[0] = UNVIEWPORT_X( src->v.x );
- dst->win[1] = UNVIEWPORT_Y( src->v.y );
- dst->win[2] = UNVIEWPORT_Z( src->v.z );
- dst->win[3] = src->v.w;
- }
-
- dst->color[0] = src->v.color.red;
- dst->color[1] = src->v.color.green;
- dst->color[2] = src->v.color.blue;
- dst->color[3] = src->v.color.alpha;
-
- dst->specular[0] = src->v.specular.red;
- dst->specular[1] = src->v.specular.green;
- dst->specular[2] = src->v.specular.blue;
-
- dst->fog = src->v.specular.alpha/255.0;
-
- if (HAVE_PTEX_VERTICES &&
- ((HAVE_TEX2_VERTICES && format == PROJ_TEX3_VERTEX_FORMAT) ||
- (format == PROJ_TEX1_VERTEX_FORMAT))) {
-
- dst->texcoord[0][0] = src->pv.u0;
- dst->texcoord[0][1] = src->pv.v0;
- dst->texcoord[0][3] = src->pv.q0;
-
- dst->texcoord[1][0] = src->pv.u1;
- dst->texcoord[1][1] = src->pv.v1;
- dst->texcoord[1][3] = src->pv.q1;
-
- if (HAVE_TEX2_VERTICES) {
- dst->texcoord[2][0] = src->pv.u2;
- dst->texcoord[2][1] = src->pv.v2;
- dst->texcoord[2][3] = src->pv.q2;
- }
-
- if (HAVE_TEX3_VERTICES) {
- dst->texcoord[3][0] = src->pv.u3;
- dst->texcoord[3][1] = src->pv.v3;
- dst->texcoord[3][3] = src->pv.q3;
- }
- }
- else {
- dst->texcoord[0][0] = src->v.u0;
- dst->texcoord[0][1] = src->v.v0;
- dst->texcoord[0][3] = 1.0;
-
- dst->texcoord[1][0] = src->v.u1;
- dst->texcoord[1][1] = src->v.v1;
- dst->texcoord[1][3] = 1.0;
-
- if (HAVE_TEX2_VERTICES) {
- dst->texcoord[2][0] = src->v.u2;
- dst->texcoord[2][1] = src->v.v2;
- dst->texcoord[2][3] = 1.0;
- }
-
- if (HAVE_TEX3_VERTICES) {
- dst->texcoord[3][0] = src->v.u3;
- dst->texcoord[3][1] = src->v.v3;
- dst->texcoord[3][3] = 1.0;
- }
- }
- }
-
- dst->pointSize = ctx->Point._Size;
-}
-
-
-
-void TAG(print_vertex)( GLcontext *ctx, const VERTEX *v )
-{
- LOCALVARS
- GLuint format = GET_VERTEX_FORMAT();
-
- fprintf(stderr, "(%x) ", format);
-
- switch (format) {
-#if HAVE_TINY_VERTICES
- case TINY_VERTEX_FORMAT:
- fprintf(stderr, "xyz %.4f,%.4f,%.4f rgba %x:%x:%x:%x\n",
- v->v.x, v->v.y, v->v.z,
- v->tv.color.red,
- v->tv.color.green,
- v->tv.color.blue,
- v->tv.color.alpha);
- break;
-#endif
-#if HAVE_NOTEX_VERTICES
- case NOTEX_VERTEX_FORMAT:
- fprintf(stderr, "xyzw %.4f,%.4f,%.4f,%.4f rgba %x:%x:%x:%x spec %x:%x:%x:%x\n",
- v->v.x, v->v.y, v->v.z, v->v.w,
- v->v.color.red,
- v->v.color.green,
- v->v.color.blue,
- v->v.color.alpha,
- v->v.specular.red,
- v->v.specular.green,
- v->v.specular.blue,
- v->v.specular.alpha);
- break;
-#endif
-#if HAVE_TEX0_VERTICES
- case TEX0_VERTEX_FORMAT:
- fprintf(stderr, "xyzw %.4f,%.4f,%.4f,%.4f rgba %x:%x:%x:%x st %.4f,%.4f\n",
- v->v.x, v->v.y, v->v.z, v->v.w,
- v->v.color.red,
- v->v.color.green,
- v->v.color.blue,
- v->v.color.alpha,
- v->v.u0,
- v->v.v0);
- break;
-#endif
-#if HAVE_TEX1_VERTICES
- case TEX1_VERTEX_FORMAT:
- fprintf(stderr, "xyzw %.4f,%.4f,%.4f,%.4f rgba %x:%x:%x:%x st %.4f,%.4f st %.4f,%.4f\n",
- v->v.x, v->v.y, v->v.z, v->v.w,
- v->v.color.red,
- v->v.color.green,
- v->v.color.blue,
- v->v.color.alpha,
- v->v.u0,
- v->v.v0,
- v->v.u1,
- v->v.u2);
- break;
-#endif
-#if HAVE_PTEX_VERTICES
- case PROJ_TEX1_VERTEX_FORMAT:
- fprintf(stderr, "xyzw %.4f,%.4f,%.4f,%.4f rgba %x:%x:%x:%x stq %.4f,%.4f,%.4f stq %.4f,%.4f,%.4f\n",
- v->v.x, v->v.y, v->v.z, v->v.w,
- v->v.color.red,
- v->v.color.green,
- v->v.color.blue,
- v->v.color.alpha,
- v->pv.u0,
- v->pv.v0,
- v->pv.q0,
- v->pv.u1,
- v->pv.v1,
- v->pv.q1);
- break;
-#endif
- default:
- fprintf(stderr, "???\n");
- break;
- }
-
- fprintf(stderr, "\n");
-}
-
-
-
-/* Interpolate the elements of the VB not included in typical hardware
- * vertices.
- *
- * NOTE: All these arrays are guarenteed by tnl to be writeable and
- * have good stride.
- */
-#ifndef INTERP_QUALIFIER
-#define INTERP_QUALIFIER static
-#endif
-
-#define GET_COLOR(ptr, idx) ((ptr)->data[idx])
-
-
-INTERP_QUALIFIER void TAG(interp_extras)( GLcontext *ctx,
- GLfloat t,
- GLuint dst, GLuint out, GLuint in,
- GLboolean force_boundary )
-{
- LOCALVARS
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-
- if (VB->ColorPtr[1]) {
- 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;
- }
-
- INTERP_VERTEX(ctx, t, dst, out, in, force_boundary);
-}
-
-INTERP_QUALIFIER void TAG(copy_pv_extras)( GLcontext *ctx,
- GLuint dst, GLuint src )
-{
- LOCALVARS
- 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_4FV( GET_COLOR(VB->SecondaryColorPtr[1], dst),
- GET_COLOR(VB->SecondaryColorPtr[1], src) );
- }
- }
-
- COPY_PV_VERTEX(ctx, dst, src);
-}
-
-
-#undef INTERP_QUALIFIER
-#undef GET_COLOR
-
-#undef IND
-#undef TAG
+++ /dev/null
-
-/*
- * Mesa 3-D graphics library
- * Version: 5.0.1
- *
- * 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
- * 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@tungstengraphics.com>
- */
-
-
-/* Unlike the other templates here, this assumes quite a bit about the
- * underlying hardware. Specifically it assumes a d3d-like vertex
- * format, with a layout more or less constrained to look like the
- * following:
- *
- * union {
- * struct {
- * float x, y, z, w;
- * struct { char r, g, b, a; } color;
- * struct { char r, g, b, fog; } spec;
- * float u0, v0;
- * float u1, v1;
- * float u2, v2;
- * float u3, v3;
- * } v;
- * struct {
- * float x, y, z, w;
- * struct { char r, g, b, a; } color;
- * struct { char r, g, b, fog; } spec;
- * float u0, v0, q0;
- * float u1, v1, q1;
- * float u2, v2, q2;
- * float u3, v3, q3;
- * } pv;
- * struct {
- * float x, y, z;
- * struct { char r, g, b, a; } color;
- * } tv;
- * float f[16];
- * unsigned int ui[16];
- * unsigned char ub4[4][16];
- * }
- *
-
- * VERTEX: hw vertex type as above
- * VERTEX_COLOR: hw color struct type in VERTEX
- *
- * DO_XYZW: Emit xyz and maybe w coordinates.
- * DO_RGBA: Emit color.
- * DO_SPEC: Emit specular color.
- * DO_FOG: Emit fog coordinate in specular alpha.
- * DO_TEX0: Emit tex0 u,v coordinates.
- * DO_TEX1: Emit tex1 u,v coordinates.
- * DO_TEX2: Emit tex2 u,v coordinates.
- * DO_TEX3: Emit tex3 u,v coordinates.
- * DO_PTEX: Emit tex0,1,2,3 q coordinates where possible.
- *
- * HAVE_RGBA_COLOR: Hardware takes color in rgba order (else bgra).
- *
- * HAVE_HW_VIEWPORT: Hardware performs viewport transform.
- * HAVE_HW_DIVIDE: Hardware performs perspective divide.
- *
- * HAVE_TINY_VERTICES: Hardware understands v.tv format.
- * HAVE_PTEX_VERTICES: Hardware understands v.pv format.
- * HAVE_NOTEX_VERTICES: Hardware understands v.v format with texcount 0.
- *
- * Additionally, this template assumes it is emitting *transformed*
- * vertices; the modifications to emit untransformed vertices (ie. to
- * t&l hardware) are probably too great to cooexist with the code
- * already in this file.
- *
- * NOTE: The PTEX vertex format always includes TEX0 and TEX1, even if
- * only TEX0 is enabled, in order to maintain a vertex size which is
- * an exact number of quadwords.
- */
-
-#if (HAVE_HW_VIEWPORT)
-#define VIEWPORT_X(dst,x) dst = x
-#define VIEWPORT_Y(dst,y) dst = y
-#define VIEWPORT_Z(dst,z) dst = z
-#else
-#define VIEWPORT_X(dst,x) dst = s[0] * x + s[12]
-#define VIEWPORT_Y(dst,y) dst = s[5] * y + s[13]
-#define VIEWPORT_Z(dst,z) dst = s[10] * z + s[14]
-#endif
-
-#if (HAVE_HW_DIVIDE && !HAVE_PTEX_VERTICES)
-#error "can't cope with this combination"
-#endif
-
-#ifndef LOCALVARS
-#define LOCALVARS
-#endif
-
-#ifndef CHECK_HW_DIVIDE
-#define CHECK_HW_DIVIDE 1
-#endif
-
-#if (HAVE_HW_DIVIDE || DO_SPEC || DO_TEX0 || DO_FOG || !HAVE_TINY_VERTICES)
-
-static void TAG(emit)( GLcontext *ctx,
- GLuint start, GLuint end,
- void *dest,
- GLuint stride )
-{
- LOCALVARS
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLfloat (*tc0)[4], (*tc1)[4], (*fog)[4];
- GLfloat (*tc2)[4], (*tc3)[4];
- GLfloat (*col)[4], (*spec)[4];
- GLuint tc0_stride, tc1_stride, col_stride, spec_stride, fog_stride;
- GLuint tc2_stride, tc3_stride;
- GLuint tc0_size, tc1_size;
- GLuint tc2_size, tc3_size;
- GLfloat (*coord)[4];
- GLuint coord_stride;
- VERTEX *v = (VERTEX *)dest;
- const GLfloat *s = GET_VIEWPORT_MAT();
- const GLubyte *mask = VB->ClipMask;
- int i;
-
-/* fprintf(stderr, "%s(big) importable %d %d..%d\n", */
-/* __FUNCTION__, VB->importable_data, start, end); */
-
- if (HAVE_HW_VIEWPORT && HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) {
- (void) s;
- coord = VB->ClipPtr->data;
- coord_stride = VB->ClipPtr->stride;
- }
- else {
- coord = VB->NdcPtr->data;
- coord_stride = VB->NdcPtr->stride;
- }
-
- if (DO_TEX3) {
- const GLuint t3 = GET_TEXSOURCE(3);
- tc3 = VB->TexCoordPtr[t3]->data;
- tc3_stride = VB->TexCoordPtr[t3]->stride;
- if (DO_PTEX)
- tc3_size = VB->TexCoordPtr[t3]->size;
- }
-
- if (DO_TEX2) {
- const GLuint t2 = GET_TEXSOURCE(2);
- tc2 = VB->TexCoordPtr[t2]->data;
- tc2_stride = VB->TexCoordPtr[t2]->stride;
- if (DO_PTEX)
- tc2_size = VB->TexCoordPtr[t2]->size;
- }
-
- if (DO_TEX1) {
- const GLuint t1 = GET_TEXSOURCE(1);
- tc1 = VB->TexCoordPtr[t1]->data;
- tc1_stride = VB->TexCoordPtr[t1]->stride;
- if (DO_PTEX)
- tc1_size = VB->TexCoordPtr[t1]->size;
- }
-
- if (DO_TEX0) {
- const GLuint t0 = GET_TEXSOURCE(0);
- tc0_stride = VB->TexCoordPtr[t0]->stride;
- tc0 = VB->TexCoordPtr[t0]->data;
- if (DO_PTEX)
- tc0_size = VB->TexCoordPtr[t0]->size;
- }
-
- if (DO_RGBA) {
- col_stride = VB->ColorPtr[0]->stride;
- col = VB->ColorPtr[0]->data;
- }
-
- if (DO_SPEC) {
- if (VB->SecondaryColorPtr[0]) {
- spec_stride = VB->SecondaryColorPtr[0]->stride;
- spec = VB->SecondaryColorPtr[0]->data;
- } else {
- spec = (GLfloat (*)[4])ctx->Current.Attrib[VERT_ATTRIB_COLOR1];
- spec_stride = 0;
- }
- }
-
- if (DO_FOG) {
- if (VB->FogCoordPtr) {
- fog = VB->FogCoordPtr->data;
- fog_stride = VB->FogCoordPtr->stride;
- }
- else {
- static GLfloat tmp[4] = {0, 0, 0, 0};
- fog = &tmp;
- fog_stride = 0;
- }
- }
-
- /* May have nonstandard strides:
- */
- if (start) {
- STRIDE_4F(coord, start * coord_stride);
- if (DO_TEX0)
- STRIDE_4F(tc0, start * tc0_stride);
- if (DO_TEX1)
- STRIDE_4F(tc1, start * tc1_stride);
- if (DO_TEX2)
- STRIDE_4F(tc2, start * tc2_stride);
- if (DO_TEX3)
- STRIDE_4F(tc3, start * tc3_stride);
- if (DO_RGBA)
- STRIDE_4F(col, start * col_stride);
- if (DO_SPEC)
- STRIDE_4F(spec, start * spec_stride);
- if (DO_FOG)
- STRIDE_4F(fog, start * fog_stride);
- }
-
- for (i=start; i < end; i++, v = (VERTEX *)((GLubyte *)v + stride)) {
- if (DO_XYZW) {
- if (HAVE_HW_VIEWPORT || mask[i] == 0) {
- VIEWPORT_X(v->v.x, coord[0][0]);
- VIEWPORT_Y(v->v.y, coord[0][1]);
- VIEWPORT_Z(v->v.z, coord[0][2]);
- v->v.w = coord[0][3];
- }
- STRIDE_4F(coord, coord_stride);
- }
- if (DO_RGBA) {
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.color.red, col[0][0]);
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.color.green, col[0][1]);
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.color.blue, col[0][2]);
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.color.alpha, col[0][3]);
- STRIDE_4F(col, col_stride);
- }
- if (DO_SPEC) {
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.specular.red, spec[0][0]);
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.specular.green, spec[0][1]);
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.specular.blue, spec[0][2]);
- STRIDE_4F(spec, spec_stride);
- }
- if (DO_FOG) {
- UNCLAMPED_FLOAT_TO_UBYTE(v->v.specular.alpha, fog[0][0]);
- STRIDE_4F(fog, fog_stride);
- }
- if (DO_TEX0) {
- v->v.u0 = tc0[0][0];
- v->v.v0 = tc0[0][1];
- if (DO_PTEX) {
- if (HAVE_PTEX_VERTICES) {
- if (tc0_size == 4)
- v->pv.q0 = tc0[0][3];
- else
- v->pv.q0 = 1.0;
- }
- else if (tc0_size == 4) {
- float rhw = 1.0 / tc0[0][3];
- v->v.w *= tc0[0][3];
- v->v.u0 *= rhw;
- v->v.v0 *= rhw;
- }
- }
- STRIDE_4F(tc0, tc0_stride);
- }
- if (DO_TEX1) {
- if (DO_PTEX) {
- v->pv.u1 = tc1[0][0];
- v->pv.v1 = tc1[0][1];
- if (tc1_size == 4)
- v->pv.q1 = tc1[0][3];
- else
- v->pv.q1 = 1.0;
- }
- else {
- v->v.u1 = tc1[0][0];
- v->v.v1 = tc1[0][1];
- }
- STRIDE_4F(tc1, tc1_stride);
- }
- else if (DO_PTEX) {
- *(GLuint *)&v->pv.q1 = 0; /* avoid culling on radeon */
- }
- if (DO_TEX2) {
- if (DO_PTEX) {
- v->pv.u2 = tc2[0][0];
- v->pv.v2 = tc2[0][1];
- if (tc2_size == 4)
- v->pv.q2 = tc2[0][3];
- else
- v->pv.q2 = 1.0;
- }
- else {
- v->v.u2 = tc2[0][0];
- v->v.v2 = tc2[0][1];
- }
- STRIDE_4F(tc2, tc2_stride);
- }
- if (DO_TEX3) {
- if (DO_PTEX) {
- v->pv.u3 = tc3[0][0];
- v->pv.v3 = tc3[0][1];
- if (tc3_size == 4)
- v->pv.q3 = tc3[0][3];
- else
- v->pv.q3 = 1.0;
- }
- else {
- v->v.u3 = tc3[0][0];
- v->v.v3 = tc3[0][1];
- }
- STRIDE_4F(tc3, tc3_stride);
- }
- }
-
-}
-#else
-
-#if HAVE_HW_DIVIDE
-#error "cannot use tiny vertices with hw perspective divide"
-#endif
-
-static void TAG(emit)( GLcontext *ctx, GLuint start, GLuint end,
- void *dest, GLuint stride )
-{
- LOCALVARS
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLfloat (*col)[4];
- GLuint col_stride;
- GLfloat (*coord)[4] = VB->NdcPtr->data;
- GLuint coord_stride = VB->NdcPtr->stride;
- GLfloat *v = (GLfloat *)dest;
- const GLubyte *mask = VB->ClipMask;
- const GLfloat *s = GET_VIEWPORT_MAT();
- int i;
-
- (void) s;
-
- ASSERT(stride == 4);
-
- col = VB->ColorPtr[0]->data;
- col_stride = VB->ColorPtr[0]->stride;
-
-/* fprintf(stderr, "%s(small) importable %x\n", */
-/* __FUNCTION__, VB->importable_data); */
-
- /* Pack what's left into a 4-dword vertex. Color is in a different
- * place, and there is no 'w' coordinate.
- */
- if (start) {
- STRIDE_4F(coord, start * coord_stride);
- STRIDE_4F(col, start * col_stride);
- }
-
- for (i=start; i < end; i++, v+=4) {
- if (DO_XYZW) {
- if (HAVE_HW_VIEWPORT || mask[i] == 0) {
- VIEWPORT_X(v[0], coord[0][0]);
- VIEWPORT_Y(v[1], coord[0][1]);
- VIEWPORT_Z(v[2], coord[0][2]);
- }
- STRIDE_4F( coord, coord_stride );
- }
- if (DO_RGBA) {
- VERTEX_COLOR *c = (VERTEX_COLOR *)&v[3];
- UNCLAMPED_FLOAT_TO_UBYTE(c->red, col[0][0]);
- UNCLAMPED_FLOAT_TO_UBYTE(c->green, col[0][1]);
- UNCLAMPED_FLOAT_TO_UBYTE(c->blue, col[0][2]);
- UNCLAMPED_FLOAT_TO_UBYTE(c->alpha, col[0][3]);
- STRIDE_4F( col, col_stride );
- }
-/* fprintf(stderr, "vert %d: %.2f %.2f %.2f %x\n", */
-/* i, v[0], v[1], v[2], *(int *)&v[3]); */
- }
-}
-
-#endif /* emit */
-
-#if (DO_XYZW) && (DO_RGBA)
-
-
-#if (HAVE_PTEX_VERTICES)
-static GLboolean TAG(check_tex_sizes)( GLcontext *ctx )
-{
- LOCALVARS
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-
- /* Force 'missing' texcoords to something valid.
- */
- if (DO_TEX3 && VB->TexCoordPtr[2] == 0)
- VB->TexCoordPtr[2] = VB->TexCoordPtr[3];
-
- if (DO_TEX2 && VB->TexCoordPtr[1] == 0)
- VB->TexCoordPtr[1] = VB->TexCoordPtr[2];
-
- if (DO_TEX1 && VB->TexCoordPtr[0] == 0)
- VB->TexCoordPtr[0] = VB->TexCoordPtr[1];
-
- if (DO_PTEX)
- return GL_TRUE;
-
- if ((DO_TEX3 && VB->TexCoordPtr[GET_TEXSOURCE(3)]->size == 4) ||
- (DO_TEX2 && VB->TexCoordPtr[GET_TEXSOURCE(2)]->size == 4) ||
- (DO_TEX1 && VB->TexCoordPtr[GET_TEXSOURCE(1)]->size == 4) ||
- (DO_TEX0 && VB->TexCoordPtr[GET_TEXSOURCE(0)]->size == 4))
- return GL_FALSE;
-
- return GL_TRUE;
-}
-#else
-static GLboolean TAG(check_tex_sizes)( GLcontext *ctx )
-{
- LOCALVARS
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
-
- /* Force 'missing' texcoords to something valid.
- */
- if (DO_TEX3 && VB->TexCoordPtr[2] == 0)
- VB->TexCoordPtr[2] = VB->TexCoordPtr[3];
-
- if (DO_TEX2 && VB->TexCoordPtr[1] == 0)
- VB->TexCoordPtr[1] = VB->TexCoordPtr[2];
-
- if (DO_TEX1 && VB->TexCoordPtr[0] == 0)
- VB->TexCoordPtr[0] = VB->TexCoordPtr[1];
-
- if (DO_PTEX)
- return GL_TRUE;
-
- /* No hardware support for projective texture. Can fake it for
- * TEX0 only.
- */
- if ((DO_TEX3 && VB->TexCoordPtr[GET_TEXSOURCE(3)]->size == 4) ||
- (DO_TEX2 && VB->TexCoordPtr[GET_TEXSOURCE(2)]->size == 4) ||
- (DO_TEX1 && VB->TexCoordPtr[GET_TEXSOURCE(1)]->size == 4)) {
- PTEX_FALLBACK();
- return GL_FALSE;
- }
-
- if (DO_TEX0 && VB->TexCoordPtr[GET_TEXSOURCE(0)]->size == 4) {
- if (DO_TEX1 || DO_TEX2 || DO_TEX3) {
- PTEX_FALLBACK();
- }
- return GL_FALSE;
- }
-
- return GL_TRUE;
-}
-#endif /* ptex */
-
-
-static void TAG(interp)( GLcontext *ctx,
- GLfloat t,
- GLuint edst, GLuint eout, GLuint ein,
- GLboolean force_boundary )
-{
- LOCALVARS
- struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
- GLubyte *ddverts = GET_VERTEX_STORE();
- GLuint shift = GET_VERTEX_STRIDE_SHIFT();
- const GLfloat *dstclip = VB->ClipPtr->data[edst];
- GLfloat w;
- const GLfloat *s = GET_VIEWPORT_MAT();
-
- VERTEX *dst = (VERTEX *)(ddverts + (edst << shift));
- VERTEX *in = (VERTEX *)(ddverts + (ein << shift));
- VERTEX *out = (VERTEX *)(ddverts + (eout << shift));
-
- (void)s;
-
- if (HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) {
- VIEWPORT_X( dst->v.x, dstclip[0] );
- VIEWPORT_Y( dst->v.y, dstclip[1] );
- VIEWPORT_Z( dst->v.z, dstclip[2] );
- w = dstclip[3];
- }
- else {
- w = 1.0 / dstclip[3];
- VIEWPORT_X( dst->v.x, dstclip[0] * w );
- VIEWPORT_Y( dst->v.y, dstclip[1] * w );
- VIEWPORT_Z( dst->v.z, dstclip[2] * w );
- }
-
- if ((HAVE_HW_DIVIDE && CHECK_HW_DIVIDE) ||
- DO_FOG || DO_SPEC || DO_TEX0 || DO_TEX1 ||
- DO_TEX2 || DO_TEX3 || !HAVE_TINY_VERTICES) {
-
- dst->v.w = w;
-
- INTERP_UB( t, dst->ub4[4][0], out->ub4[4][0], in->ub4[4][0] );
- INTERP_UB( t, dst->ub4[4][1], out->ub4[4][1], in->ub4[4][1] );
- INTERP_UB( t, dst->ub4[4][2], out->ub4[4][2], in->ub4[4][2] );
- INTERP_UB( t, dst->ub4[4][3], out->ub4[4][3], in->ub4[4][3] );
-
- if (DO_SPEC) {
- INTERP_UB( t, dst->v.specular.red, out->v.specular.red, in->v.specular.red );
- INTERP_UB( t, dst->v.specular.green, out->v.specular.green, in->v.specular.green );
- INTERP_UB( t, dst->v.specular.blue, out->v.specular.blue, in->v.specular.blue );
- }
- if (DO_FOG) {
- INTERP_UB( t, dst->v.specular.alpha, out->v.specular.alpha, in->v.specular.alpha );
- }
- if (DO_TEX0) {
- if (DO_PTEX) {
- if (HAVE_PTEX_VERTICES) {
- INTERP_F( t, dst->pv.u0, out->pv.u0, in->pv.u0 );
- INTERP_F( t, dst->pv.v0, out->pv.v0, in->pv.v0 );
- INTERP_F( t, dst->pv.q0, out->pv.q0, in->pv.q0 );
- } else {
- GLfloat wout = VB->NdcPtr->data[eout][3];
- GLfloat win = VB->NdcPtr->data[ein][3];
- GLfloat qout = out->pv.w / wout;
- GLfloat qin = in->pv.w / win;
- GLfloat qdst, rqdst;
-
- ASSERT( !HAVE_HW_DIVIDE );
-
- INTERP_F( t, dst->v.u0, out->v.u0 * qout, in->v.u0 * qin );
- INTERP_F( t, dst->v.v0, out->v.v0 * qout, in->v.v0 * qin );
- INTERP_F( t, qdst, qout, qin );
-
- rqdst = 1.0 / qdst;
- dst->v.u0 *= rqdst;
- dst->v.v0 *= rqdst;
- dst->v.w *= rqdst;
- }
- }
- else {
- INTERP_F( t, dst->v.u0, out->v.u0, in->v.u0 );
- INTERP_F( t, dst->v.v0, out->v.v0, in->v.v0 );
- }
- }
- if (DO_TEX1) {
- if (DO_PTEX) {
- INTERP_F( t, dst->pv.u1, out->pv.u1, in->pv.u1 );
- INTERP_F( t, dst->pv.v1, out->pv.v1, in->pv.v1 );
- INTERP_F( t, dst->pv.q1, out->pv.q1, in->pv.q1 );
- } else {
- INTERP_F( t, dst->v.u1, out->v.u1, in->v.u1 );
- INTERP_F( t, dst->v.v1, out->v.v1, in->v.v1 );
- }
- }
- else if (DO_PTEX) {
- dst->pv.q1 = 0.0; /* must be a valid float on radeon */
- }
- if (DO_TEX2) {
- if (DO_PTEX) {
- INTERP_F( t, dst->pv.u2, out->pv.u2, in->pv.u2 );
- INTERP_F( t, dst->pv.v2, out->pv.v2, in->pv.v2 );
- INTERP_F( t, dst->pv.q2, out->pv.q2, in->pv.q2 );
- } else {
- INTERP_F( t, dst->v.u2, out->v.u2, in->v.u2 );
- INTERP_F( t, dst->v.v2, out->v.v2, in->v.v2 );
- }
- }
- if (DO_TEX3) {
- if (DO_PTEX) {
- INTERP_F( t, dst->pv.u3, out->pv.u3, in->pv.u3 );
- INTERP_F( t, dst->pv.v3, out->pv.v3, in->pv.v3 );
- INTERP_F( t, dst->pv.q3, out->pv.q3, in->pv.q3 );
- } else {
- INTERP_F( t, dst->v.u3, out->v.u3, in->v.u3 );
- INTERP_F( t, dst->v.v3, out->v.v3, in->v.v3 );
- }
- }
- } else {
- /* 4-dword vertex. Color is in v[3] and there is no oow coordinate.
- */
- INTERP_UB( t, dst->ub4[3][0], out->ub4[3][0], in->ub4[3][0] );
- INTERP_UB( t, dst->ub4[3][1], out->ub4[3][1], in->ub4[3][1] );
- INTERP_UB( t, dst->ub4[3][2], out->ub4[3][2], in->ub4[3][2] );
- INTERP_UB( t, dst->ub4[3][3], out->ub4[3][3], in->ub4[3][3] );
- }
-}
-
-#endif /* rgba && xyzw */
-
-
-static void TAG(init)( void )
-{
- setup_tab[IND].emit = TAG(emit);
-
-#if (DO_XYZW && DO_RGBA)
- setup_tab[IND].check_tex_sizes = TAG(check_tex_sizes);
- setup_tab[IND].interp = TAG(interp);
-#endif
-
- if (DO_SPEC)
- setup_tab[IND].copy_pv = copy_pv_rgba4_spec5;
- else if (HAVE_HW_DIVIDE || DO_SPEC || DO_FOG || DO_TEX0 || DO_TEX1 ||
- DO_TEX2 || DO_TEX3 || !HAVE_TINY_VERTICES)
- setup_tab[IND].copy_pv = copy_pv_rgba4;
- else
- setup_tab[IND].copy_pv = copy_pv_rgba3;
-
- if (DO_TEX3) {
- if (DO_PTEX) {
- ASSERT(HAVE_PTEX_VERTICES);
- setup_tab[IND].vertex_format = PROJ_TEX3_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 18;
- setup_tab[IND].vertex_stride_shift = 7;
- }
- else {
- setup_tab[IND].vertex_format = TEX3_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 14;
- setup_tab[IND].vertex_stride_shift = 6;
- }
- }
- else if (DO_TEX2) {
- if (DO_PTEX) {
- ASSERT(HAVE_PTEX_VERTICES);
- setup_tab[IND].vertex_format = PROJ_TEX3_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 18;
- setup_tab[IND].vertex_stride_shift = 7;
- }
- else {
- setup_tab[IND].vertex_format = TEX2_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 12;
- setup_tab[IND].vertex_stride_shift = 6;
- }
- }
- else if (DO_TEX1) {
- if (DO_PTEX) {
- ASSERT(HAVE_PTEX_VERTICES);
- setup_tab[IND].vertex_format = PROJ_TEX1_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 12;
- setup_tab[IND].vertex_stride_shift = 6;
- }
- else {
- setup_tab[IND].vertex_format = TEX1_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 10;
- setup_tab[IND].vertex_stride_shift = 6;
- }
- }
- else if (DO_TEX0) {
- if (DO_PTEX && HAVE_PTEX_VERTICES) {
- setup_tab[IND].vertex_format = PROJ_TEX1_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 12;
- setup_tab[IND].vertex_stride_shift = 6;
- } else {
- setup_tab[IND].vertex_format = TEX0_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 8;
- setup_tab[IND].vertex_stride_shift = 5;
- }
- }
- else if (!HAVE_HW_DIVIDE && !DO_SPEC && !DO_FOG && HAVE_TINY_VERTICES) {
- setup_tab[IND].vertex_format = TINY_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 4;
- setup_tab[IND].vertex_stride_shift = 4;
- } else if (HAVE_NOTEX_VERTICES) {
- setup_tab[IND].vertex_format = NOTEX_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 6;
- setup_tab[IND].vertex_stride_shift = 5;
- } else {
- setup_tab[IND].vertex_format = TEX0_VERTEX_FORMAT;
- setup_tab[IND].vertex_size = 8;
- setup_tab[IND].vertex_stride_shift = 5;
- }
-
- assert(setup_tab[IND].vertex_size * 4 <=
- 1 << setup_tab[IND].vertex_stride_shift);
-}
-
-
-#undef IND
-#undef TAG
+++ /dev/null
-
-/*
- * Mesa 3-D graphics library
- * Version: 4.0.3
- *
- * Copyright (C) 1999-2002 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@tungstengraphics.com>
- */
-
-typedef struct {
- GLfloat x, y, z, w;
-} TAG(_coord_t);
-
-#ifdef COLOR_IS_RGBA
-typedef struct {
-#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
- GLubyte alpha, blue, green, red;
-#else
- GLubyte red, green, blue, alpha;
-#endif
-} TAG(_color_t);
-#else
-typedef struct {
-#if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && BYTE_ORDER == BIG_ENDIAN
- GLubyte alpha, red, green, blue;
-#else
- GLubyte blue, green, red, alpha;
-#endif
-} TAG(_color_t);
-#endif
-
-typedef union {
- struct {
- GLfloat x, y, z, w;
- TAG(_color_t) color;
- TAG(_color_t) specular;
- GLfloat u0, v0;
- GLfloat u1, v1;
- GLfloat u2, v2;
- GLfloat u3, v3;
- } v;
- struct {
- GLfloat x, y, z, w;
- TAG(_color_t) color;
- TAG(_color_t) specular;
- GLfloat u0, v0, q0;
- GLfloat u1, v1, q1;
- GLfloat u2, v2, q2;
- GLfloat u3, v3, q3;
- } pv;
- struct {
- GLfloat x, y, z;
- TAG(_color_t) color;
- } tv;
- GLfloat f[24];
- GLuint ui[24];
- GLubyte ub4[24][4];
-} TAG(Vertex), *TAG(VertexPtr);
-
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