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Add quad and quad_strip

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This commit is contained in:
Alan Hourihane 2001-04-07 16:16:58 +00:00
parent d3abe14a3a
commit 30c75badd1
1 changed files with 56 additions and 6 deletions
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62
src/mesa/drivers/common/t_dd_dmatmp.h
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@ -1,4 +1,4 @@
/* $Id: t_dd_dmatmp.h,v 1.8 2001/04/06 16:26:41 alanh Exp $ */
/* $Id: t_dd_dmatmp.h,v 1.9 2001/04/07 16:16:58 alanh Exp $ */
/*
* Mesa 3-D graphics library
@ -417,10 +417,39 @@ static void TAG(render_quad_strip_verts)( GLcontext *ctx,
{
GLuint j, nr;
if (HAVE_QUAD_STRIPS && 0) {
/* TODO.
*/
} else if (HAVE_TRI_STRIPS && ctx->_TriangleCaps & DD_FLATSHADE) {
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) {
FIRE_VERTICES();
currentsz = dmasz;
}
if (flags & PRIM_PARITY) {
EMIT_VERTS( ctx, start, 1 );
currentsz--;
}
dmasz -= (dmasz & 2);
currentsz -= (currentsz & 2);
for (j = start ; j < count - 3; j += nr - 2 ) {
nr = MIN2( currentsz, count - j );
EMIT_VERTS( ctx, j, nr );
currentsz = dmasz;
}
FINISH;
} else if (HAVE_ELTS && HAVE_TRI_STRIPS && ctx->_TriangleCaps & DD_FLATSHADE) {
if (TAG(emit_elt_verts)( ctx, start, count )) {
LOCAL_VARS;
int dmasz = GET_SUBSEQUENT_VB_MAX_ELTS();
@ -517,7 +546,28 @@ static void TAG(render_quads_verts)( GLcontext *ctx,
GLuint count,
GLuint flags )
{
if (HAVE_QUADS && 0) {
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