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path: root/src/mesa/swrast/s_span.c
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Diffstat (limited to 'src/mesa/swrast/s_span.c')
-rw-r--r--src/mesa/swrast/s_span.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_span.c b/src/mesa/swrast/s_span.c
index 7f9cc64bb29..ab7b82b19d9 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;
}