From: Ian Romanick <[email protected]>
Signed-off-by: Ian Romanick <[email protected]>
---
tests/spec/arb_separate_shader_objects/sso-common.c | 21 +++++++++++++++++++++
tests/spec/arb_separate_shader_objects/sso-common.h | 2 ++
2 files changed, 23 insertions(+)
diff --git a/tests/spec/arb_separate_shader_objects/sso-common.c
b/tests/spec/arb_separate_shader_objects/sso-common.c
index fc43ce9..c73c741 100644
--- a/tests/spec/arb_separate_shader_objects/sso-common.c
+++ b/tests/spec/arb_separate_shader_objects/sso-common.c
@@ -54,3 +54,24 @@ pick_a_glsl_version(void)
return glsl_version;
}
+
+/**
+ * Create a transform feedback object and some storage for the data
+ *
+ * \note
+ * The XFB object will be bound on exit. The buffer object for the XFB data
+ * will be bound to the XFB object and the \c GL_TRANSFORM_FEEDBACK_BUFFER
+ * binding on exit.
+ */
+void
+configure_transform_feedback_object(GLuint *xfb, GLuint *buf)
+{
+ glGenBuffers(1, buf);
+ glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, *buf);
+ glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 1024, NULL, GL_STREAM_READ);
+
+ glGenTransformFeedbacks(1, xfb);
+
+ glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, *xfb);
+ glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, *buf);
+}
diff --git a/tests/spec/arb_separate_shader_objects/sso-common.h
b/tests/spec/arb_separate_shader_objects/sso-common.h
index 23e962c..627df4c 100644
--- a/tests/spec/arb_separate_shader_objects/sso-common.h
+++ b/tests/spec/arb_separate_shader_objects/sso-common.h
@@ -26,4 +26,6 @@
unsigned pick_a_glsl_version(void);
+void configure_transform_feedback_object(GLuint *xfb, GLuint *buf);
+
#endif /* SSO_COMMON_H */
--
1.8.1.4
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