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authorBrian Paul <[email protected]>2015-10-15 22:30:22 -0600
committerBrian Paul <[email protected]>2015-10-20 12:52:40 -0600
commit6cc596c66bb41cd3fa60bbf630c9ea4f661a64cc (patch)
tree1bcdbb3e067bc8da5ce8aec609c7f40a38508543 /src/mesa/tnl/t_vb_rendertmp.h
parentf7272032bec2e92e05e9c870e9655ca069d3d988 (diff)
tnl: add some comments in render_line_loop code
And remove '(void) flags' line which is not needed. Reviewed-by: Jose Fonseca <[email protected]> Reviewed-by: Sinclair Yeh <[email protected]>
Diffstat (limited to 'src/mesa/tnl/t_vb_rendertmp.h')
-rw-r--r--src/mesa/tnl/t_vb_rendertmp.h5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/mesa/tnl/t_vb_rendertmp.h b/src/mesa/tnl/t_vb_rendertmp.h
index 44dee763594..4bfc6b15d3b 100644
--- a/src/mesa/tnl/t_vb_rendertmp.h
+++ b/src/mesa/tnl/t_vb_rendertmp.h
@@ -124,19 +124,19 @@ static void TAG(render_line_loop)( struct gl_context *ctx,
GLuint i;
LOCAL_VARS;
- (void) flags;
-
INIT(GL_LINE_LOOP);
if (start+1 < count) {
if (TEST_PRIM_BEGIN(flags)) {
RESET_STIPPLE;
+ /* draw the first line from v[0] to v[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) );
}
+ /* draw lines from v[1] to v[n-1] */
for ( i = start+2 ; i < count ; i++) {
if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
RENDER_LINE( ELT(i-1), ELT(i) );
@@ -145,6 +145,7 @@ static void TAG(render_line_loop)( struct gl_context *ctx,
}
if ( TEST_PRIM_END(flags)) {
+ /* draw final line from v[n-1] to v[0] (the very first vertex) */
if (ctx->Light.ProvokingVertex == GL_LAST_VERTEX_CONVENTION_EXT)
RENDER_LINE( ELT(count-1), ELT(start) );
else