From 6cc596c66bb41cd3fa60bbf630c9ea4f661a64cc Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 15 Oct 2015 22:30:22 -0600 Subject: [PATCH] tnl: add some comments in render_line_loop code And remove '(void) flags' line which is not needed. Reviewed-by: Jose Fonseca Reviewed-by: Sinclair Yeh --- src/mesa/tnl/t_vb_rendertmp.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/mesa/tnl/t_vb_rendertmp.h b/src/mesa/tnl/t_vb_rendertmp.h index 44dee76..4bfc6b1 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 -- 2.7.4