tests/shader_runner: Introduce a "cull-distance" capability.

Approved-by: Giovanni Mascellani (@giomasce)
Approved-by: Henri Verbeet (@hverbeet)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/1801

tests/d3d12_crosstest.h

@@ -552,6 +552,11 @@ static inline bool is_macos_lt(unsigned int major, unsigned int minor, unsigned
     return false;
 }
 
+static inline bool is_cull_distance_supported(ID3D12Device *device)
+{
+    return true;
+}
+
 static inline bool is_depth_clip_enable_supported(ID3D12Device *device)
 {
     return true;
@@ -932,6 +937,15 @@ static inline bool is_macos_lt(unsigned int major, unsigned int minor, unsigned
 
 #endif
 
+static inline bool is_cull_distance_supported(ID3D12Device *device)
+{
+    VkPhysicalDeviceFeatures features;
+
+    vkGetPhysicalDeviceFeatures(vkd3d_get_vk_physical_device(device), &features);
+
+    return features.shaderCullDistance;
+}
+
 static inline bool is_depth_clip_enable_supported(ID3D12Device *device)
 {
     VkPhysicalDevice vk_physical_device = vkd3d_get_vk_physical_device(device);

tests/hlsl/clip-cull-distance.shader_test

@@ -247,6 +247,10 @@ probe rtv 0 (480, 120) rgba(1.0, 1.0, 0.0, 1.0)
 probe rtv 0 (480, 240) rgba(1.0, 1.0, 0.0, 1.0)
 probe rtv 0 (480, 360) rgba(1.0, 1.0, 0.0, 1.0)
 
+[require]
+shader model >= 4.0
+cull-distance
+
 % Now it works. Here all the cull distances are effectively ignored, because
 % they do not leave the only triangle entirely on one side. (Also, they
 % coincide with other clip distances.)
@@ -284,19 +288,20 @@ void main(uint id : SV_VertexID, out vs_out o)
 
 [test]
 clear rtv 0 1.0 1.0 0.0 1.0
-todo(sm<6 | msl) draw triangle strip 4
-probe rtv 0 (160, 120) rgba(1.0, 1.0, 0.0, 1.0)
-probe rtv 0 (160, 240) rgba(1.0, 1.0, 0.0, 1.0)
-probe rtv 0 (160, 360) rgba(1.0, 1.0, 0.0, 1.0)
-probe rtv 0 (320, 120) rgba(1.0, 1.0, 0.0, 1.0)
-bug(d3d12 & mvk) probe rtv 0 (320, 240) rgba(0.0, 1.0, 0.0, 1.0)
-probe rtv 0 (320, 360) rgba(1.0, 1.0, 0.0, 1.0)
-probe rtv 0 (480, 120) rgba(1.0, 1.0, 0.0, 1.0)
-probe rtv 0 (480, 240) rgba(1.0, 1.0, 0.0, 1.0)
-probe rtv 0 (480, 360) rgba(1.0, 1.0, 0.0, 1.0)
+todo(sm<6) draw triangle strip 4
+probe rtv 0 (160, 120) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (160, 240) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (160, 360) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (320, 120) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (320, 240) f32(0.0, 1.0, 0.0, 1.0)
+probe rtv 0 (320, 360) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (480, 120) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (480, 240) f32(1.0, 1.0, 0.0, 1.0)
+probe rtv 0 (480, 360) f32(1.0, 1.0, 0.0, 1.0)
 
 [require]
 shader model >= 4.0
+cull-distance
 geometry-shader
 
 % Let clip and cull distances go through a geometry shader.

tests/shader_runner.c

@@ -461,6 +461,7 @@ static DXGI_FORMAT parse_format(const char *line, unsigned int *texel_size, bool
 static const char *const shader_cap_strings[] =
 {
     [SHADER_CAP_CLIP_PLANES]         = "clip-planes",
+    [SHADER_CAP_CULL_DISTANCE]       = "cull-distance",
     [SHADER_CAP_DEPTH_BOUNDS]        = "depth-bounds",
     [SHADER_CAP_FLOAT64]             = "float64",
     [SHADER_CAP_FOG]                 = "fog",

tests/shader_runner.h

@@ -150,6 +150,7 @@ enum format_cap
 enum shader_cap
 {
     SHADER_CAP_CLIP_PLANES,
+    SHADER_CAP_CULL_DISTANCE,
     SHADER_CAP_DEPTH_BOUNDS,
     SHADER_CAP_FLOAT64,
     SHADER_CAP_FOG,

tests/shader_runner_d3d11.c

@@ -336,6 +336,7 @@ static BOOL init_test_context(struct d3d11_shader_runner *runner)
     runner->caps.minimum_shader_model = SHADER_MODEL_4_0;
     runner->caps.maximum_shader_model = SHADER_MODEL_5_0;
 
+    runner->caps.shader_caps[SHADER_CAP_CULL_DISTANCE] = true;
     hr = ID3D11Device_CheckFeatureSupport(runner->device, D3D11_FEATURE_DOUBLES,
             &doubles, sizeof(doubles));
     ok(hr == S_OK, "Failed to check double precision feature support, hr %#lx.\n", hr);

tests/shader_runner_d3d12.c

@@ -1109,6 +1109,8 @@ static void d3d12_runner_init_caps(struct d3d12_shader_runner *runner,
     runner->caps.compiler = using_dxcompiler ? "dxcompiler" : HLSL_COMPILER;
     runner->caps.minimum_shader_model = minimum_shader_model;
     runner->caps.maximum_shader_model = maximum_shader_model;
+    if (is_cull_distance_supported(device))
+        runner->caps.shader_caps[SHADER_CAP_CULL_DISTANCE] = true;
     runner->caps.shader_caps[SHADER_CAP_DEPTH_BOUNDS] = options2.DepthBoundsTestSupported;
     runner->caps.shader_caps[SHADER_CAP_FLOAT64] = options.DoublePrecisionFloatShaderOps;
     if (is_geometry_shader_supported(device))

tests/shader_runner_gl.c

@@ -153,6 +153,8 @@ static bool check_gl_extensions(struct gl_runner *runner)
 
     if (check_gl_extension("GL_EXT_depth_bounds_test", count))
         runner->caps.shader_caps[SHADER_CAP_DEPTH_BOUNDS] = true;
+    if (check_gl_extension("GL_ARB_cull_distance", count))
+        runner->caps.shader_caps[SHADER_CAP_CULL_DISTANCE] = true;
     if (check_gl_extension("GL_ARB_gpu_shader_fp64", count))
         runner->caps.shader_caps[SHADER_CAP_FLOAT64] = true;
     if (check_gl_extension("GL_ARB_gpu_shader_int64", count))

tests/shader_runner_vulkan.c

@@ -1877,6 +1877,12 @@ static bool init_vulkan_runner(struct vulkan_shader_runner *runner)
         runner->caps.shader_caps[SHADER_CAP_GEOMETRY_SHADER] = true;
     }
 
+    if (ret_features->shaderCullDistance)
+    {
+        features.shaderCullDistance = VK_TRUE;
+        runner->caps.shader_caps[SHADER_CAP_CULL_DISTANCE] = true;
+    }
+
     if (ret_features->shaderFloat64)
     {
         features.shaderFloat64 = VK_TRUE;