rhi: metal: Add support for tessellation

Change-Id: Ie8d226a6a959aa5e78284ea72505fd26aec1e671
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

9 files changed, 65 insertions, 0 deletions

diff --git a/tests/auto/gui/rhi/qrhi/data/buildshaders.bat b/tests/auto/gui/rhi/qrhi/data/buildshaders.bat
index 68d9bb8ae7..8518db8afc 100644
--- a/tests/auto/gui/rhi/qrhi/data/buildshaders.bat
+++ b/tests/auto/gui/rhi/qrhi/data/buildshaders.bat
@@ -11,3 +11,7 @@ qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o textured.vert.qsb textured.
 qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o textured.frag.qsb textured.frag
 qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o textured_multiubuf.vert.qsb textured_multiubuf.vert
 qsb --glsl "150,120,100 es" --hlsl 50 -c --msl 12 -o textured_multiubuf.frag.qsb textured_multiubuf.frag
+qsb --glsl 320es,410 --msl 12 --msltess simpletess.vert -o simpletess.vert.qsb
+qsb --glsl 320es,410 --msl 12 --tess-mode triangles simpletess.tesc -o simpletess.tesc.qsb
+qsb --glsl 320es,410 --msl 12  --tess-vertex-count 3 simpletess.tese -o simpletess.tese.qsb
+qsb --glsl 320es,410 --msl 12 simpletess.frag -o simpletess.frag.qsb
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.frag b/tests/auto/gui/rhi/qrhi/data/simpletess.frag
new file mode 100644
index 0000000000..375587662f
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.frag
@@ -0,0 +1,10 @@
+#version 440
+
+layout(location = 0) in vec3 v_color;
+
+layout(location = 0) out vec4 fragColor;
+
+void main()
+{
+    fragColor = vec4(v_color, 1.0);
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.frag.qsb b/tests/auto/gui/rhi/qrhi/data/simpletess.frag.qsb
new file mode 100644
index 0000000000..0f42103ac5
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.frag.qsb
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.tesc b/tests/auto/gui/rhi/qrhi/data/simpletess.tesc
new file mode 100644
index 0000000000..e192fc77c7
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.tesc
@@ -0,0 +1,22 @@
+#version 440
+
+layout(vertices = 3) out;
+
+layout(location = 0) in vec3 inColor[];
+layout(location = 0) out vec3 outColor[];
+layout(location = 1) patch out float a_per_patch_output_variable;
+
+void main()
+{
+    if (gl_InvocationID == 0) {
+        gl_TessLevelOuter[0] = 4.0;
+        gl_TessLevelOuter[1] = 4.0;
+        gl_TessLevelOuter[2] = 4.0;
+
+        gl_TessLevelInner[0] = 4.0;
+    }
+
+    gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
+    outColor[gl_InvocationID] = inColor[gl_InvocationID];
+    a_per_patch_output_variable = 1.0;
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.tesc.qsb b/tests/auto/gui/rhi/qrhi/data/simpletess.tesc.qsb
new file mode 100644
index 0000000000..8c98d92c46
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.tesc.qsb
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.tese b/tests/auto/gui/rhi/qrhi/data/simpletess.tese
new file mode 100644
index 0000000000..17b348635a
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.tese
@@ -0,0 +1,17 @@
+#version 440
+
+layout(triangles, fractional_odd_spacing, ccw) in;
+
+layout(location = 0) in vec3 inColor[];
+layout(location = 0) out vec3 outColor;
+layout(location = 1) patch in float a_per_patch_output_variable;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 mvp;
+};
+
+void main()
+{
+    gl_Position = mvp * ((gl_TessCoord.x * gl_in[0].gl_Position) + (gl_TessCoord.y * gl_in[1].gl_Position) + (gl_TessCoord.z * gl_in[2].gl_Position));
+    outColor = gl_TessCoord.x * inColor[0] + gl_TessCoord.y * inColor[1] + gl_TessCoord.z * inColor[2] * a_per_patch_output_variable;
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.tese.qsb b/tests/auto/gui/rhi/qrhi/data/simpletess.tese.qsb
new file mode 100644
index 0000000000..8aa7632717
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.tese.qsb
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.vert b/tests/auto/gui/rhi/qrhi/data/simpletess.vert
new file mode 100644
index 0000000000..3838d2f3bb
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.vert
@@ -0,0 +1,12 @@
+#version 440
+
+layout(location = 0) in vec3 position;
+layout(location = 1) in vec3 color;
+
+layout(location = 0) out vec3 v_color;
+
+void main()
+{
+    gl_Position = vec4(position, 1.0);
+    v_color = color;
+}
diff --git a/tests/auto/gui/rhi/qrhi/data/simpletess.vert.qsb b/tests/auto/gui/rhi/qrhi/data/simpletess.vert.qsb
new file mode 100644
index 0000000000..ee90983e0b
--- /dev/null
+++ b/tests/auto/gui/rhi/qrhi/data/simpletess.vert.qsb