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path: root/src/mesa/tnl/t_vb_rendertmp.h
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Diffstat (limited to 'src/mesa/tnl/t_vb_rendertmp.h')
-rw-r--r--src/mesa/tnl/t_vb_rendertmp.h101
1 files changed, 78 insertions, 23 deletions
diff --git a/src/mesa/tnl/t_vb_rendertmp.h b/src/mesa/tnl/t_vb_rendertmp.h
index 2b5f4e93b2..75f6f55bdc 100644
--- a/src/mesa/tnl/t_vb_rendertmp.h
+++ b/src/mesa/tnl/t_vb_rendertmp.h
@@ -82,7 +82,10 @@ static void TAG(render_lines)( GLcontext *ctx,
INIT(GL_LINES);
for (j=start+1; j<count; j+=2 ) {
RESET_STIPPLE;
- RENDER_LINE( ELT(j-1), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_LINE( ELT(j-1), ELT(j) );
+ else
+ RENDER_LINE( ELT(j), ELT(j-1) );
}
POSTFIX;
}
@@ -103,9 +106,12 @@ static void TAG(render_line_strip)( GLcontext *ctx,
RESET_STIPPLE;
}
- for (j=start+1; j<count; j++ )
- RENDER_LINE( ELT(j-1), ELT(j) );
-
+ for (j=start+1; j<count; j++ ) {
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_LINE( ELT(j-1), ELT(j) );
+ else
+ RENDER_LINE( ELT(j), ELT(j-1) );
+ }
POSTFIX;
}
@@ -125,15 +131,24 @@ static void TAG(render_line_loop)( GLcontext *ctx,
if (start+1 < count) {
if (TEST_PRIM_BEGIN(flags)) {
RESET_STIPPLE;
- RENDER_LINE( ELT(start), ELT(start+1) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_LINE( ELT(start), ELT(start+1) );
+ else
+ RENDER_LINE( ELT(start+1), ELT(start) );
}
for ( i = start+2 ; i < count ; i++) {
- RENDER_LINE( ELT(i-1), ELT(i) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_LINE( ELT(i-1), ELT(i) );
+ else
+ RENDER_LINE( ELT(i), ELT(i-1) );
}
if ( TEST_PRIM_END(flags)) {
- RENDER_LINE( ELT(count-1), ELT(start) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_LINE( ELT(count-1), ELT(start) );
+ else
+ RENDER_LINE( ELT(start), ELT(count-1) );
}
}
@@ -156,11 +171,17 @@ static void TAG(render_triangles)( GLcontext *ctx,
/* Leave the edgeflags as supplied by the user.
*/
RESET_STIPPLE;
- RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
+ else
+ RENDER_TRI( ELT(j-1), ELT(j), ELT(j-2) );
}
} else {
for (j=start+2; j<count; j+=3) {
- RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_TRI( ELT(j-2), ELT(j-1), ELT(j) );
+ else
+ RENDER_TRI( ELT(j-1), ELT(j), ELT(j-2) );
}
}
POSTFIX;
@@ -180,26 +201,38 @@ static void TAG(render_tri_strip)( GLcontext *ctx,
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 );
+ GLuint ej2, ej1, ej;
+ GLboolean ef2, ef1, ef;
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT) {
+ ej2 = ELT(j-2+parity);
+ ej1 = ELT(j-1-parity);
+ ej = ELT(j);
+ }
+ else {
+ ej2 = ELT(j-1+parity);
+ ej1 = ELT(j-parity);
+ ej = ELT(j-2);
+ }
+ ef2 = EDGEFLAG_GET( ej2 );
+ ef1 = EDGEFLAG_GET( ej1 );
+ ef = EDGEFLAG_GET( ej );
if (TEST_PRIM_BEGIN(flags)) {
RESET_STIPPLE;
}
EDGEFLAG_SET( ej2, GL_TRUE );
EDGEFLAG_SET( ej1, GL_TRUE );
EDGEFLAG_SET( ej, GL_TRUE );
- RENDER_TRI( ej2, ej1, ej );
+ RENDER_TRI( ej2, ej1, ej );
EDGEFLAG_SET( ej2, ef2 );
EDGEFLAG_SET( ej1, ef1 );
EDGEFLAG_SET( ej, ef );
}
} else {
for (j=start+2; j<count ; j++, parity^=1) {
- RENDER_TRI( ELT(j-2+parity), ELT(j-1-parity), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_TRI( ELT(j-2+parity), ELT(j-1-parity), ELT(j) );
+ else
+ RENDER_TRI( ELT(j-1+parity), ELT(j-parity), ELT(j-2) );
}
}
POSTFIX;
@@ -232,14 +265,20 @@ static void TAG(render_tri_fan)( GLcontext *ctx,
EDGEFLAG_SET( ejs, GL_TRUE );
EDGEFLAG_SET( ej1, GL_TRUE );
EDGEFLAG_SET( ej, GL_TRUE );
- RENDER_TRI( ejs, ej1, ej);
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_TRI( ejs, ej1, ej);
+ else
+ RENDER_TRI( ej, ejs, ej1);
EDGEFLAG_SET( ejs, efs );
EDGEFLAG_SET( ej1, ef1 );
EDGEFLAG_SET( ej, ef );
}
} else {
for (j=start+2;j<count;j++) {
- RENDER_TRI( ELT(start), ELT(j-1), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
+ RENDER_TRI( ELT(start), ELT(j-1), ELT(j) );
+ else
+ RENDER_TRI( ELT(j), ELT(start), ELT(j-1) );
}
}
@@ -331,11 +370,19 @@ static void TAG(render_quads)( GLcontext *ctx,
/* Use user-specified edgeflags for quads.
*/
RESET_STIPPLE;
- RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT ||
+ !ctx->Const.QuadsFollowProvokingVertexConvention)
+ RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
+ else
+ RENDER_QUAD( ELT(j-2), ELT(j-1), ELT(j), ELT(j-3) );
}
} else {
for (j=start+3; j<count; j+=4) {
- RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT ||
+ !ctx->Const.QuadsFollowProvokingVertexConvention)
+ RENDER_QUAD( ELT(j-3), ELT(j-2), ELT(j-1), ELT(j) );
+ else
+ RENDER_QUAD( ELT(j-2), ELT(j-1), ELT(j), ELT(j-3) );
}
}
POSTFIX;
@@ -367,7 +414,11 @@ static void TAG(render_quad_strip)( GLcontext *ctx,
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) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT ||
+ !ctx->Const.QuadsFollowProvokingVertexConvention)
+ RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
+ else
+ RENDER_QUAD( ELT(j-2), ELT(j), ELT(j-1), ELT(j-3) );
EDGEFLAG_SET( ELT(j-3), ef3 );
EDGEFLAG_SET( ELT(j-2), ef2 );
EDGEFLAG_SET( ELT(j-1), ef1 );
@@ -375,7 +426,11 @@ static void TAG(render_quad_strip)( GLcontext *ctx,
}
} else {
for (j=start+3;j<count;j+=2) {
- RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
+ if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT ||
+ !ctx->Const.QuadsFollowProvokingVertexConvention)
+ RENDER_QUAD( ELT(j-1), ELT(j-3), ELT(j-2), ELT(j) );
+ else
+ RENDER_QUAD( ELT(j-2), ELT(j), ELT(j-1), ELT(j-3) );
}
}
POSTFIX;
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 19:40:54 +0000