[Piglit] [PATCH] arb_dsa: avoid non-determinism in create-programpipelines subtests

[Ilia Mirkin]

Right now the default label size test fails due to mesa not implementing
the call, and length is uninitialized, which causes the subtest name to
keep changing. A well-behaved impl won't modify the param on error, so
initialize it to a known-bad value.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
 tests/spec/arb_direct_state_access/create-programpipelines.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/spec/arb_direct_state_access/create-programpipelines.c b/tests/spec/arb_direct_state_access/create-programpipelines.c
index 981c206..c9992e2 100644
--- a/tests/spec/arb_direct_state_access/create-programpipelines.c
+++ b/tests/spec/arb_direct_state_access/create-programpipelines.c
@@ -87,27 +87,32 @@ piglit_display(void)
 	SUBTESTCONDITION(glIsProgramPipeline(ids[2]), pass,
 			 "IsProgramPipeline()");
 
+	param = -1;
 	glGetProgramPipelineiv(ids[2], GL_ACTIVE_PROGRAM, &param);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(param == 0, pass,
 			 "default active program(%d) == 0", param);
 
+	param = -1;
 	glGetProgramPipelineiv(ids[2], GL_VERTEX_SHADER, &param);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(param == 0, pass,
 			 "default vertex shader program(%d) == 0", param);
 
+	param = -1;
 	glGetProgramPipelineiv(ids[2], GL_GEOMETRY_SHADER, &param);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(param == 0, pass,
 			 "default geometry shader program(%d) == 0", param);
 
+	param = -1;
 	glGetProgramPipelineiv(ids[2], GL_FRAGMENT_SHADER, &param);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(param == 0, pass,
 			 "default fragment shader program(%d) == 0", param);
 
 	if (piglit_is_extension_supported("GL_ARB_compute_shader")) {
+		param = -1;
 		glGetProgramPipelineiv(ids[2], GL_COMPUTE_SHADER, &param);
 		piglit_check_gl_error(GL_NO_ERROR);
 		SUBTESTCONDITION(param == 0, pass,
@@ -119,11 +124,13 @@ piglit_display(void)
 	}
 
 	if (piglit_is_extension_supported("GL_ARB_tessellation_shader")) {
+		param = -1;
 		glGetProgramPipelineiv(ids[2], GL_TESS_CONTROL_SHADER, &param);
 		piglit_check_gl_error(GL_NO_ERROR);
 		SUBTESTCONDITION(param == 0, pass,
 				 "default TCS(%d) == 0", param);
 
+		param = -1;
 		glGetProgramPipelineiv(ids[2], GL_TESS_EVALUATION_SHADER,
 				       &param);
 		piglit_check_gl_error(GL_NO_ERROR);
@@ -137,16 +144,19 @@ piglit_display(void)
 					 "default TES == 0");
 	}
 
+	param = -1;
 	glGetProgramPipelineiv(ids[2], GL_VALIDATE_STATUS, &param);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(param == GL_FALSE, pass,
 			 "default validate status(%d) == FALSE", param);
 
+	param = -1;
 	glGetProgramPipelineiv(ids[2], GL_INFO_LOG_LENGTH, &param);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(param == 0, pass,
 			 "startup log length(%d) == 0", param);
 
+	length = -1;
 	glGetObjectLabel(GL_PROGRAM_PIPELINE, ids[2], 11, &length, label);
 	piglit_check_gl_error(GL_NO_ERROR);
 	SUBTESTCONDITION(length == 0, pass,
-- 
2.3.6