From: Marek Olšák <marek.ol...@amd.com>
It shouldn't crash the GPU and it should return (0, 0, 0, 1).
This is r300 behavior, so I assume it's also DX9 behavior.
Radeonsi can support this easily.
---
src/gallium/auxiliary/util/u_tests.c | 39 ++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/src/gallium/auxiliary/util/u_tests.c
b/src/gallium/auxiliary/util/u_tests.c
index 89ae840..9c8514c 100644
--- a/src/gallium/auxiliary/util/u_tests.c
+++ b/src/gallium/auxiliary/util/u_tests.c
@@ -304,6 +304,44 @@ tgsi_vs_window_space_position(struct pipe_context *ctx)
util_report_result(pass);
}
+static void
+null_sampler_view(struct pipe_context *ctx)
+{
+ struct cso_context *cso;
+ struct pipe_resource *cb;
+ void *fs, *vs;
+ bool pass = true;
+ static const float expected[] = {0, 0, 0, 1};
+
+ cso = cso_create_context(ctx);
+ cb = util_create_texture2d(ctx->screen, 256, 256,
+ PIPE_FORMAT_R8G8B8A8_UNORM);
+ util_set_common_states_and_clear(cso, ctx, cb);
+
+ ctx->set_sampler_views(ctx, PIPE_SHADER_FRAGMENT, 0, 1, NULL);
+
+ /* Fragment shader. */
+ fs = util_make_fragment_tex_shader(ctx, TGSI_TEXTURE_2D,
+ TGSI_INTERPOLATE_LINEAR);
+ cso_set_fragment_shader_handle(cso, fs);
+
+ /* Vertex shader. */
+ vs = util_set_passthrough_vertex_shader(cso, ctx, false);
+ util_draw_fullscreen_quad(cso);
+
+ /* Probe pixels. */
+ pass = pass && util_probe_rect_rgba(ctx, cb, 0, 0,
+ cb->width0, cb->height0, expected);
+
+ /* Cleanup. */
+ cso_destroy_context(cso);
+ ctx->delete_vs_state(ctx, vs);
+ ctx->delete_fs_state(ctx, fs);
+ pipe_resource_reference(&cb, NULL);
+
+ util_report_result(pass);
+}
+
/**
* Run all tests. This should be run with a clean context after
* context_create.
@@ -314,6 +352,7 @@ util_run_tests(struct pipe_screen *screen)
struct pipe_context *ctx = screen->context_create(screen, NULL);
tgsi_vs_window_space_position(ctx);
+ null_sampler_view(ctx);
ctx->destroy(ctx);
--
2.1.0
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