rhi: Add manual test for RGBA16F and compute

Uses the two compute shaders from Qt Quick 3D. Demonstrates
and tests both RGBA16F textures and using them (and doing
load/store with mip levels individually) in combination with
compute.

Task-number: QTBUG-81213
Change-Id: I3f0f250d5997a26c857b7c45517684c63b44e58e
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/manual/rhi/float16texture_with_compute/load.comp b/tests/manual/rhi/float16texture_with_compute/load.comp
new file mode 100644
index 0000000000..eb7bc1ece4
--- /dev/null
+++ b/tests/manual/rhi/float16texture_with_compute/load.comp
@@ -0,0 +1,19 @@
+#version 440
+
+layout(local_size_x = 16, local_size_y = 16) in;
+layout(rgba8, binding = 1) readonly uniform image2D inputImage;
+layout(rgba16f, binding = 2) writeonly uniform image2D outputImage;
+
+// There is no equivalent of gl_NumWorkGroups in HLSL. So instead pass the
+// values in in a uniform buffer.
+layout(std140, binding = 0) uniform numWorkGroupsBuf {
+    uvec3 numWorkGroups;
+};
+
+void main()
+{
+    if (gl_GlobalInvocationID.x >= numWorkGroups.x || gl_GlobalInvocationID.y >= numWorkGroups.y)
+        return;
+    vec4 value = imageLoad(inputImage, ivec2(gl_GlobalInvocationID.xy));
+    imageStore(outputImage, ivec2(gl_GlobalInvocationID.xy), value);
+}