Reviewed-by: Tapani Pälli <[email protected]>
On 01/31/2016 03:35 PM, Ilia Mirkin wrote:
Test both MS and per-sample shaded cases. With MS, there should be no
additional invocations, while with per-sample shading, each sample
should be counted.
Signed-off-by: Ilia Mirkin <[email protected]>
---
v1 -> v2: properly account for double-drawing of the seam at MS4 without
per-sample shading.
tests/spec/arb_framebuffer_no_attachments/atomic.c | 30 ++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/tests/spec/arb_framebuffer_no_attachments/atomic.c
b/tests/spec/arb_framebuffer_no_attachments/atomic.c
index 0c62ac3..382c938 100644
--- a/tests/spec/arb_framebuffer_no_attachments/atomic.c
+++ b/tests/spec/arb_framebuffer_no_attachments/atomic.c
@@ -157,6 +157,36 @@ piglit_init(int argc, char **argv)
pass &= compare_counter(4, "glViewport");
+ /* Reset counter and add samples to the default fb */
+ reset_counter();
+ glViewport(0, 0, piglit_width, piglit_height);
+ glFramebufferParameteri(GL_FRAMEBUFFER,
+ GL_FRAMEBUFFER_DEFAULT_SAMPLES, 4);
+
+ piglit_draw_rect(-1, -1, 2, 2);
+
+ if (piglit_width == piglit_height) {
+ /* The seam gets double-drawn */
+ pass &= compare_counter((piglit_width + 1) * piglit_height,
+ "MS4");
+ } else {
+ piglit_report_subtest_result(PIGLIT_SKIP, "MS4");
+ }
+
+ if (piglit_is_extension_supported("GL_ARB_sample_shading")) {
+ /* Reset counter and enable per-sample shading */
+ reset_counter();
+ glEnable(GL_SAMPLE_SHADING_ARB);
+ glMinSampleShadingARB(1.0);
+
+ piglit_draw_rect(-1, -1, 2, 2);
+
+ pass &= compare_counter(piglit_width * piglit_height * 4,
+ "Per-sample");
+ } else {
+ piglit_report_subtest_result(PIGLIT_SKIP, "Per-sample");
+ }
+
glDeleteFramebuffers(1, &fbo);
glDeleteVertexArrays(1, &vao);
glDeleteBuffers(1, &buffer);
_______________________________________________
Piglit mailing list
[email protected]
http://lists.freedesktop.org/mailman/listinfo/piglit
