diff options
| author | Brian Paul <brianp@vmware.com> | 2009-02-04 10:45:04 -0700 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-02-04 16:33:25 -0700 |
| commit | 8962bac0a1e422afcd034f4ce00d45d8f3df46bf (patch) | |
| tree | 562b3fe9df1ae8614799825bfb5cb4e346af55f8 | |
| parent | 79e3441f6679c31532cd737129ec472b29d4d9c8 (diff) | |
swrast: add minor comments
| -rw-r--r-- | src/mesa/swrast/s_span.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c index 7f9cc64bb2..ab7b82b19d 100644 --- a/src/mesa/swrast/s_span.c +++ b/src/mesa/swrast/s_span.c @@ -1311,6 +1311,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) /* Do the alpha test */ if (ctx->Color.AlphaEnabled) { if (!_swrast_alpha_test(ctx, span)) { + /* all fragments failed test */ goto end; } } @@ -1323,6 +1324,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) if (ctx->Stencil.Enabled && fb->Visual.stencilBits > 0) { /* Combined Z/stencil tests */ if (!_swrast_stencil_and_ztest_span(ctx, span)) { + /* all fragments failed test */ goto end; } } @@ -1331,6 +1333,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) ASSERT(ctx->Depth.Test); ASSERT(span->arrayMask & SPAN_Z); if (!_swrast_depth_test_span(ctx, span)) { + /* all fragments failed test */ goto end; } } @@ -1350,6 +1353,7 @@ _swrast_write_rgba_span( GLcontext *ctx, SWspan *span) * the occlusion test. */ if (colorMask == 0x0) { + /* no colors to write */ goto end; } |