From 16debc652a4f054a9c74e9229b98dec1746d292b Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Wed, 29 Mar 2017 16:30:59 +1100 Subject: [PATCH] mesa/glthread: fallback to sync if count validation fails MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The old code would sync and then throw a cryptic error message. There is no need for a custom error, we can just fallback to the real function and have it do proper validation. Fixes piglit test: glsl-uniform-out-of-bounds Which was returning the wrong error code. Reviewed-by: Nicolai Hähnle --- src/mapi/glapi/gen/gl_marshal.py | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) diff --git a/src/mapi/glapi/gen/gl_marshal.py b/src/mapi/glapi/gen/gl_marshal.py index 9639f9c..51475e1 100644 --- a/src/mapi/glapi/gen/gl_marshal.py +++ b/src/mapi/glapi/gen/gl_marshal.py @@ -204,7 +204,7 @@ class PrintCode(gl_XML.gl_print_base): self.print_sync_call(func) out('}') - def validate_count_or_return(self, func): + def validate_count_or_fallback(self, func): # Check that any counts for variable-length arguments might be < 0, in # which case the command alloc or the memcpy would blow up before we # get to the validation in Mesa core. @@ -212,12 +212,14 @@ class PrintCode(gl_XML.gl_print_base): if p.is_variable_length(): out('if (unlikely({0} < 0)) {{'.format(p.size_string())) with indent(): - out('_mesa_glthread_finish(ctx);') - out('_mesa_error(ctx, GL_INVALID_VALUE, "{0}({1} < 0)");'.format(func.name, p.size_string())) - out('return;') + out('goto fallback_to_sync;') out('}') + return True + return False + def print_async_marshal(self, func): + need_fallback_sync = False out('static void GLAPIENTRY') out('_mesa_marshal_{0}({1})'.format( func.name, func.get_parameter_string())) @@ -236,7 +238,7 @@ class PrintCode(gl_XML.gl_print_base): out('debug_print_marshal("{0}");'.format(func.name)) - self.validate_count_or_return(func) + need_fallback_sync = self.validate_count_or_fallback(func) if func.marshal_fail: out('if ({0}) {{'.format(func.marshal_fail)) @@ -250,11 +252,15 @@ class PrintCode(gl_XML.gl_print_base): out('if (cmd_size <= MARSHAL_MAX_CMD_SIZE) {') with indent(): self.print_async_dispatch(func) - out('} else {') - with indent(): - self.print_sync_dispatch(func) + out('return;') out('}') + out('') + if need_fallback_sync: + out('fallback_to_sync:') + with indent(): + self.print_sync_dispatch(func) + out('}') def print_async_body(self, func): -- 2.7.4