diff options
| -rw-r--r-- | src/mesa/shader/slang/slang_link.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c index 3f953d86e74..a68cafc0865 100644 --- a/src/mesa/shader/slang/slang_link.c +++ b/src/mesa/shader/slang/slang_link.c @@ -644,6 +644,17 @@ _slang_link(GLcontext *ctx, } } + /* check that gl_FragColor and gl_FragData are not both written to */ + if (shProg->FragmentProgram) { + GLbitfield outputsWritten = shProg->FragmentProgram->Base.OutputsWritten; + if ((outputsWritten & ((1 << FRAG_RESULT_COLR))) && + (outputsWritten >= (1 << FRAG_RESULT_DATA0))) { + link_error(shProg, "Fragment program cannot write both gl_FragColor" + " and gl_FragData[].\n"); + return; + } + } + if (fragProg && shProg->FragmentProgram) { /* Compute initial program's TexturesUsed info */ |