[PATCH vkd3d 6/6] tests: Add test for line tessellation.

Józef Kucia joseph.kucia at gmail.com
Wed Jun 12 07:08:04 CDT 2019


From: Józef Kucia <jkucia at codeweavers.com>

Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
---
 tests/d3d12.c | 333 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 333 insertions(+)

diff --git a/tests/d3d12.c b/tests/d3d12.c
index 642d62584593..a57a0453123f 100644
--- a/tests/d3d12.c
+++ b/tests/d3d12.c
@@ -26729,6 +26729,338 @@ static void test_hull_shader_fork_phase(void)
     destroy_test_context(&context);
 }
 
+static void test_line_tessellation(void)
+{
+    ID3D12Resource *vb, *so_buffer, *readback_buffer;
+    D3D12_QUERY_DATA_SO_STATISTICS *so_statistics;
+    D3D12_GRAPHICS_PIPELINE_STATE_DESC pso_desc;
+    ID3D12GraphicsCommandList *command_list;
+    D3D12_QUERY_HEAP_DESC query_heap_desc;
+    D3D12_STREAM_OUTPUT_BUFFER_VIEW sobv;
+    D3D12_INPUT_LAYOUT_DESC input_layout;
+    struct test_context_desc desc;
+    D3D12_VERTEX_BUFFER_VIEW vbv;
+    struct resource_readback rb;
+    ID3D12QueryHeap *query_heap;
+    struct test_context context;
+    const struct vec4 *expected;
+    ID3D12CommandQueue *queue;
+    struct vec4 *data;
+    bool broken_warp;
+    unsigned int i;
+    HRESULT hr;
+
+#if 0
+    struct data
+    {
+        float4 position : SV_Position;
+        float3 color : COLOR;
+        float line_density : LINE_DENSITY;
+        float line_detail : LINE_DETAIL;
+    };
+
+    data vs_main(data input)
+    {
+        return input;
+    }
+
+    struct patch_constant_data
+    {
+        float tess_factor[2] : SV_TessFactor;
+        float3 color : COLOR;
+        uint prim_id : PRIMITIVE_ID;
+    };
+
+    void patch_constant(OutputPatch<data, 1> control_points,
+            uint prim_id : SV_PrimitiveID,
+            out patch_constant_data output)
+    {
+        output.tess_factor[0] = control_points[0].line_density;
+        output.tess_factor[1] = control_points[0].line_detail;
+        output.color = control_points[0].color;
+        output.prim_id = prim_id;
+    }
+
+    [domain("isoline")]
+    [outputcontrolpoints(1)]
+    [partitioning("integer")]
+    [outputtopology("line")]
+    [patchconstantfunc("patch_constant")]
+    data hs_main(InputPatch<data, 1> input)
+    {
+        return input[0];
+    }
+
+    [domain("isoline")]
+    void ds_main(patch_constant_data input,
+            float tess_factor[2] : SV_TessFactor,
+            float2 tess_coord : SV_DomainLocation,
+            float3 color : COLOR,
+            uint prim_id : PRIMITIVE_ID,
+            const OutputPatch<data, 1> patch,
+            out float4 position : SV_Position,
+            out float4 out_color : COLOR,
+            out float4 out_prim_id : PRIMITIVE_ID)
+    {
+        position = patch[0].position;
+        out_color = float4(color, 1.0);
+        out_prim_id = prim_id;
+    }
+#endif
+    static const DWORD vs_code[] =
+    {
+        0x43425844, 0x43d2f821, 0xc4bcdf60, 0xadbf5ed0, 0xe55b715d, 0x00000001, 0x00000230, 0x00000003,
+        0x0000002c, 0x000000c8, 0x00000164, 0x4e475349, 0x00000094, 0x00000004, 0x00000008, 0x00000068,
+        0x00000000, 0x00000000, 0x00000003, 0x00000000, 0x00000f0f, 0x00000074, 0x00000000, 0x00000000,
+        0x00000003, 0x00000001, 0x00000707, 0x0000007a, 0x00000000, 0x00000000, 0x00000003, 0x00000002,
+        0x00000101, 0x00000087, 0x00000000, 0x00000000, 0x00000003, 0x00000003, 0x00000101, 0x505f5653,
+        0x7469736f, 0x006e6f69, 0x4f4c4f43, 0x494c0052, 0x445f454e, 0x49534e45, 0x4c005954, 0x5f454e49,
+        0x41544544, 0xab004c49, 0x4e47534f, 0x00000094, 0x00000004, 0x00000008, 0x00000068, 0x00000000,
+        0x00000001, 0x00000003, 0x00000000, 0x0000000f, 0x00000074, 0x00000000, 0x00000000, 0x00000003,
+        0x00000001, 0x00000807, 0x0000007a, 0x00000000, 0x00000000, 0x00000003, 0x00000001, 0x00000708,
+        0x00000087, 0x00000000, 0x00000000, 0x00000003, 0x00000002, 0x00000e01, 0x505f5653, 0x7469736f,
+        0x006e6f69, 0x4f4c4f43, 0x494c0052, 0x445f454e, 0x49534e45, 0x4c005954, 0x5f454e49, 0x41544544,
+        0xab004c49, 0x58454853, 0x000000c4, 0x00010050, 0x00000031, 0x0100086a, 0x0300005f, 0x001010f2,
+        0x00000000, 0x0300005f, 0x00101072, 0x00000001, 0x0300005f, 0x00101012, 0x00000002, 0x0300005f,
+        0x00101012, 0x00000003, 0x04000067, 0x001020f2, 0x00000000, 0x00000001, 0x03000065, 0x00102072,
+        0x00000001, 0x03000065, 0x00102082, 0x00000001, 0x03000065, 0x00102012, 0x00000002, 0x05000036,
+        0x001020f2, 0x00000000, 0x00101e46, 0x00000000, 0x05000036, 0x00102072, 0x00000001, 0x00101246,
+        0x00000001, 0x05000036, 0x00102082, 0x00000001, 0x0010100a, 0x00000002, 0x05000036, 0x00102012,
+        0x00000002, 0x0010100a, 0x00000003, 0x0100003e,
+    };
+    static const D3D12_SHADER_BYTECODE vs = {vs_code, sizeof(vs_code)};
+    static const DWORD hs_code[] =
+    {
+        0x43425844, 0x130f1b8c, 0x02c24095, 0x18ab42ad, 0xbb861b50, 0x00000001, 0x00000448, 0x00000004,
+        0x00000030, 0x000000cc, 0x00000168, 0x000001fc, 0x4e475349, 0x00000094, 0x00000004, 0x00000008,
+        0x00000068, 0x00000000, 0x00000001, 0x00000003, 0x00000000, 0x00000f0f, 0x00000074, 0x00000000,
+        0x00000000, 0x00000003, 0x00000001, 0x00000707, 0x0000007a, 0x00000000, 0x00000000, 0x00000003,
+        0x00000001, 0x00000808, 0x00000087, 0x00000000, 0x00000000, 0x00000003, 0x00000002, 0x00000101,
+        0x505f5653, 0x7469736f, 0x006e6f69, 0x4f4c4f43, 0x494c0052, 0x445f454e, 0x49534e45, 0x4c005954,
+        0x5f454e49, 0x41544544, 0xab004c49, 0x4e47534f, 0x00000094, 0x00000004, 0x00000008, 0x00000068,
+        0x00000000, 0x00000001, 0x00000003, 0x00000000, 0x0000000f, 0x00000074, 0x00000000, 0x00000000,
+        0x00000003, 0x00000001, 0x00000807, 0x0000007a, 0x00000000, 0x00000000, 0x00000003, 0x00000001,
+        0x00000708, 0x00000087, 0x00000000, 0x00000000, 0x00000003, 0x00000002, 0x00000e01, 0x505f5653,
+        0x7469736f, 0x006e6f69, 0x4f4c4f43, 0x494c0052, 0x445f454e, 0x49534e45, 0x4c005954, 0x5f454e49,
+        0x41544544, 0xab004c49, 0x47534350, 0x0000008c, 0x00000004, 0x00000008, 0x00000068, 0x00000000,
+        0x00000010, 0x00000003, 0x00000000, 0x00000e01, 0x00000076, 0x00000000, 0x00000000, 0x00000003,
+        0x00000000, 0x0000010e, 0x00000068, 0x00000001, 0x0000000f, 0x00000003, 0x00000001, 0x00000e01,
+        0x0000007c, 0x00000000, 0x00000000, 0x00000001, 0x00000001, 0x00000d02, 0x545f5653, 0x46737365,
+        0x6f746361, 0x4f430072, 0x00524f4c, 0x4d495250, 0x56495449, 0x44495f45, 0xababab00, 0x58454853,
+        0x00000244, 0x00030050, 0x00000091, 0x01000071, 0x01000893, 0x01000894, 0x01000895, 0x01000896,
+        0x01001097, 0x0100086a, 0x01000072, 0x0400005f, 0x002010f2, 0x00000001, 0x00000000, 0x0400005f,
+        0x00201072, 0x00000001, 0x00000001, 0x0400005f, 0x00201082, 0x00000001, 0x00000001, 0x0400005f,
+        0x00201012, 0x00000001, 0x00000002, 0x03000065, 0x001020f2, 0x00000000, 0x03000065, 0x00102072,
+        0x00000001, 0x03000065, 0x00102082, 0x00000001, 0x03000065, 0x00102012, 0x00000002, 0x06000036,
+        0x001020f2, 0x00000000, 0x00201e46, 0x00000000, 0x00000000, 0x06000036, 0x001020f2, 0x00000001,
+        0x00201e46, 0x00000000, 0x00000001, 0x06000036, 0x00102012, 0x00000002, 0x0020100a, 0x00000000,
+        0x00000002, 0x0100003e, 0x01000073, 0x0400005f, 0x0021a082, 0x00000001, 0x00000001, 0x04000067,
+        0x00102012, 0x00000000, 0x00000016, 0x06000036, 0x00102012, 0x00000000, 0x0021a03a, 0x00000000,
+        0x00000001, 0x0100003e, 0x01000073, 0x0400005f, 0x0021a012, 0x00000001, 0x00000002, 0x04000067,
+        0x00102012, 0x00000001, 0x00000015, 0x06000036, 0x00102012, 0x00000001, 0x0021a00a, 0x00000000,
+        0x00000002, 0x0100003e, 0x01000073, 0x0400005f, 0x0021a012, 0x00000001, 0x00000001, 0x03000065,
+        0x00102022, 0x00000000, 0x06000036, 0x00102022, 0x00000000, 0x0021a00a, 0x00000000, 0x00000001,
+        0x0100003e, 0x01000073, 0x0400005f, 0x0021a022, 0x00000001, 0x00000001, 0x03000065, 0x00102042,
+        0x00000000, 0x06000036, 0x00102042, 0x00000000, 0x0021a01a, 0x00000000, 0x00000001, 0x0100003e,
+        0x01000073, 0x0400005f, 0x0021a042, 0x00000001, 0x00000001, 0x03000065, 0x00102082, 0x00000000,
+        0x06000036, 0x00102082, 0x00000000, 0x0021a02a, 0x00000000, 0x00000001, 0x0100003e, 0x01000073,
+        0x0200005f, 0x0000b000, 0x03000065, 0x00102022, 0x00000001, 0x04000036, 0x00102022, 0x00000001,
+        0x0000b001, 0x0100003e,
+    };
+    static const D3D12_SHADER_BYTECODE hs = {hs_code, sizeof(hs_code)};
+    static const DWORD ds_code[] =
+    {
+        0x43425844, 0xc78d05dd, 0x4b270467, 0xb480a2fb, 0x02f0edc7, 0x00000001, 0x0000029c, 0x00000004,
+        0x00000030, 0x000000cc, 0x00000160, 0x000001d8, 0x4e475349, 0x00000094, 0x00000004, 0x00000008,
+        0x00000068, 0x00000000, 0x00000001, 0x00000003, 0x00000000, 0x00000f0f, 0x00000074, 0x00000000,
+        0x00000000, 0x00000003, 0x00000001, 0x00000007, 0x0000007a, 0x00000000, 0x00000000, 0x00000003,
+        0x00000001, 0x00000008, 0x00000087, 0x00000000, 0x00000000, 0x00000003, 0x00000002, 0x00000001,
+        0x505f5653, 0x7469736f, 0x006e6f69, 0x4f4c4f43, 0x494c0052, 0x445f454e, 0x49534e45, 0x4c005954,
+        0x5f454e49, 0x41544544, 0xab004c49, 0x47534350, 0x0000008c, 0x00000004, 0x00000008, 0x00000068,
+        0x00000000, 0x00000010, 0x00000003, 0x00000000, 0x00000001, 0x00000076, 0x00000000, 0x00000000,
+        0x00000003, 0x00000000, 0x00000e0e, 0x00000068, 0x00000001, 0x0000000f, 0x00000003, 0x00000001,
+        0x00000001, 0x0000007c, 0x00000000, 0x00000000, 0x00000001, 0x00000001, 0x00000202, 0x545f5653,
+        0x46737365, 0x6f746361, 0x4f430072, 0x00524f4c, 0x4d495250, 0x56495449, 0x44495f45, 0xababab00,
+        0x4e47534f, 0x00000070, 0x00000003, 0x00000008, 0x00000050, 0x00000000, 0x00000001, 0x00000003,
+        0x00000000, 0x0000000f, 0x0000005c, 0x00000000, 0x00000000, 0x00000003, 0x00000001, 0x0000000f,
+        0x00000062, 0x00000000, 0x00000000, 0x00000003, 0x00000002, 0x0000000f, 0x505f5653, 0x7469736f,
+        0x006e6f69, 0x4f4c4f43, 0x52500052, 0x54494d49, 0x5f455649, 0xab004449, 0x58454853, 0x000000bc,
+        0x00040050, 0x0000002f, 0x01000893, 0x01000895, 0x0100086a, 0x0300005f, 0x0011b0e2, 0x00000000,
+        0x0300005f, 0x0011b022, 0x00000001, 0x0400005f, 0x002190f2, 0x00000001, 0x00000000, 0x04000067,
+        0x001020f2, 0x00000000, 0x00000001, 0x03000065, 0x001020f2, 0x00000001, 0x03000065, 0x001020f2,
+        0x00000002, 0x06000036, 0x001020f2, 0x00000000, 0x00219e46, 0x00000000, 0x00000000, 0x05000036,
+        0x00102072, 0x00000001, 0x0011b796, 0x00000000, 0x05000036, 0x00102082, 0x00000001, 0x00004001,
+        0x3f800000, 0x05000056, 0x001020f2, 0x00000002, 0x0011b556, 0x00000001, 0x0100003e,
+    };
+    static const D3D12_SHADER_BYTECODE ds = {ds_code, sizeof(ds_code)};
+    static const D3D12_INPUT_ELEMENT_DESC layout_desc[] =
+    {
+        {"SV_POSITION",  0, DXGI_FORMAT_R32G32B32A32_FLOAT, 0,  0, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0},
+        {"COLOR",        0, DXGI_FORMAT_R32G32B32_FLOAT,    0, 16, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0},
+        {"LINE_DENSITY", 0, DXGI_FORMAT_R32_FLOAT,          0, 32, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0},
+        {"LINE_DETAIL",  0, DXGI_FORMAT_R32_FLOAT,          0, 36, D3D12_INPUT_CLASSIFICATION_PER_VERTEX_DATA, 0},
+    };
+    static const D3D12_SO_DECLARATION_ENTRY so_declaration[] =
+    {
+        {0, "SV_POSITION",  0, 0, 4, 0},
+        {0, "COLOR",        0, 0, 4, 0},
+        {0, "PRIMITIVE_ID", 0, 0, 4, 0},
+    };
+    unsigned int strides[] = {48};
+    static const struct
+    {
+        struct vec4 position;
+        struct vec4 color;
+        float line_density;
+        float line_detail;
+    }
+    vertices[] =
+    {
+        {{0.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 1.0f, 0.0f}, 1.0f, 1.0f},
+        {{1.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 0.5f, 0.0f}, 2.0f, 1.0f},
+        {{2.0f, 0.0f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f}, 1.0f, 2.0f},
+        {{3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f}, 2.0f, 2.0f},
+    };
+    static const struct vec4 expected_data[] =
+    {
+        {0.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 1.0f, 0.0f, 1.0f}, {0.0f, 0.0f, 0.0f, 0.0f},
+        {0.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 1.0f, 0.0f, 1.0f}, {0.0f, 0.0f, 0.0f, 0.0f},
+
+        {1.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 0.5f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f},
+        {1.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 0.5f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f},
+        {1.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 0.5f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f},
+        {1.0f, 0.0f, 0.0f, 1.0f}, {0.0f, 0.5f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f},
+
+        {2.0f, 0.0f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {2.0f, 2.0f, 2.0f, 2.0f},
+        {2.0f, 0.0f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {2.0f, 2.0f, 2.0f, 2.0f},
+        {2.0f, 0.0f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {2.0f, 2.0f, 2.0f, 2.0f},
+        {2.0f, 0.0f, 0.0f, 1.0f}, {1.0f, 1.0f, 1.0f, 1.0f}, {2.0f, 2.0f, 2.0f, 2.0f},
+
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+        {3.0f, 0.0f, 0.0f, 1.0f}, {0.5f, 0.5f, 0.5f, 1.0f}, {3.0f, 3.0f, 3.0f, 3.0f},
+    };
+
+    memset(&desc, 0, sizeof(desc));
+    desc.root_signature_flags = D3D12_ROOT_SIGNATURE_FLAG_ALLOW_INPUT_ASSEMBLER_INPUT_LAYOUT
+            | D3D12_ROOT_SIGNATURE_FLAG_ALLOW_STREAM_OUTPUT;
+    desc.no_pipeline = true;
+    if (!init_test_context(&context, &desc))
+        return;
+    command_list = context.list;
+    queue = context.queue;
+
+    query_heap_desc.Type = D3D12_QUERY_HEAP_TYPE_SO_STATISTICS;
+    query_heap_desc.Count = 2;
+    query_heap_desc.NodeMask = 0;
+    hr = ID3D12Device_CreateQueryHeap(context.device, &query_heap_desc, &IID_ID3D12QueryHeap, (void **)&query_heap);
+    if (hr == E_NOTIMPL)
+    {
+        skip("Stream output is not supported.\n");
+        destroy_test_context(&context);
+        return;
+    }
+    ok(hr == S_OK, "Failed to create query heap, hr %#x.\n", hr);
+
+    input_layout.pInputElementDescs = layout_desc;
+    input_layout.NumElements = ARRAY_SIZE(layout_desc);
+    init_pipeline_state_desc(&pso_desc, context.root_signature,
+            DXGI_FORMAT_UNKNOWN, NULL, NULL, &input_layout);
+    pso_desc.VS = vs;
+    pso_desc.HS = hs;
+    pso_desc.DS = ds;
+    memset(&pso_desc.PS, 0, sizeof(pso_desc.PS));
+    pso_desc.PrimitiveTopologyType = D3D12_PRIMITIVE_TOPOLOGY_TYPE_PATCH;
+    pso_desc.StreamOutput.NumEntries = ARRAY_SIZE(so_declaration);
+    pso_desc.StreamOutput.pSODeclaration = so_declaration;
+    pso_desc.StreamOutput.pBufferStrides = strides;
+    pso_desc.StreamOutput.NumStrides = ARRAY_SIZE(strides);
+    pso_desc.StreamOutput.RasterizedStream = D3D12_SO_NO_RASTERIZED_STREAM;
+    hr = ID3D12Device_CreateGraphicsPipelineState(context.device, &pso_desc,
+            &IID_ID3D12PipelineState, (void **)&context.pipeline_state);
+    ok(hr == S_OK, "Failed to create state, hr %#x.\n", hr);
+
+    vb = create_upload_buffer(context.device, sizeof(vertices), vertices);
+    vbv.BufferLocation = ID3D12Resource_GetGPUVirtualAddress(vb);
+    vbv.StrideInBytes = sizeof(*vertices);
+    vbv.SizeInBytes = sizeof(vertices);
+
+    so_buffer = create_default_buffer(context.device, 4096,
+            D3D12_RESOURCE_FLAG_NONE, D3D12_RESOURCE_STATE_STREAM_OUT);
+    sobv.BufferLocation = ID3D12Resource_GetGPUVirtualAddress(so_buffer);
+    sobv.SizeInBytes = 1024;
+    sobv.BufferFilledSizeLocation = sobv.BufferLocation + sobv.SizeInBytes;
+
+    ID3D12GraphicsCommandList_BeginQuery(command_list, query_heap, D3D12_QUERY_TYPE_SO_STATISTICS_STREAM0, 0);
+
+    ID3D12GraphicsCommandList_SOSetTargets(command_list, 0, 1, &sobv);
+
+    ID3D12GraphicsCommandList_SetGraphicsRootSignature(command_list, context.root_signature);
+    ID3D12GraphicsCommandList_SetPipelineState(command_list, context.pipeline_state);
+    ID3D12GraphicsCommandList_IASetPrimitiveTopology(command_list, D3D_PRIMITIVE_TOPOLOGY_1_CONTROL_POINT_PATCHLIST);
+    ID3D12GraphicsCommandList_RSSetViewports(command_list, 1, &context.viewport);
+    ID3D12GraphicsCommandList_RSSetScissorRects(command_list, 1, &context.scissor_rect);
+    ID3D12GraphicsCommandList_IASetVertexBuffers(command_list, 0, 1, &vbv);
+    ID3D12GraphicsCommandList_DrawInstanced(command_list, 4, 1, 0, 0);
+
+    ID3D12GraphicsCommandList_EndQuery(command_list, query_heap, D3D12_QUERY_TYPE_SO_STATISTICS_STREAM0, 0);
+
+    readback_buffer = create_readback_buffer(context.device, sizeof(*so_statistics));
+    ID3D12GraphicsCommandList_ResolveQueryData(command_list,
+            query_heap, D3D12_QUERY_TYPE_SO_STATISTICS_STREAM0, 0, 1, readback_buffer, 0);
+
+    get_buffer_readback_with_command_list(readback_buffer, DXGI_FORMAT_UNKNOWN, &rb, queue, command_list);
+    so_statistics = get_readback_data(&rb, 0, 0, 0, sizeof(*so_statistics));
+    broken_warp = broken_on_warp(so_statistics[0].NumPrimitivesWritten != 9);
+    ok(so_statistics[0].NumPrimitivesWritten == 9 || broken_warp, "Got unexpected primitives written %u.\n",
+            (unsigned int)so_statistics[0].NumPrimitivesWritten);
+    ok(so_statistics[0].PrimitivesStorageNeeded == 9 || broken_warp, "Got unexpected primitives storage needed %u.\n",
+            (unsigned int)so_statistics[0].PrimitivesStorageNeeded);
+    release_resource_readback(&rb);
+
+    if (broken_warp)
+    {
+        skip("Broken on WARP.\n");
+        goto done;
+    }
+
+    reset_command_list(command_list, context.allocator);
+    transition_resource_state(command_list, so_buffer,
+            D3D12_RESOURCE_STATE_STREAM_OUT, D3D12_RESOURCE_STATE_COPY_SOURCE);
+    get_buffer_readback_with_command_list(so_buffer, DXGI_FORMAT_UNKNOWN, &rb, queue, command_list);
+    for (i = 0; i < ARRAY_SIZE(expected_data) / 3 ; ++i)
+    {
+        data = get_readback_data(&rb, i, 0, 0, 3 * sizeof(*data));
+        expected = &expected_data[3 * i + 0];
+        ok(compare_vec4(data, expected, 1),
+                "Got position {%.8e, %.8e, %.8e, %.8e}, expected {%.8e, %.8e, %.8e, %.8e} at %u.\n",
+                data->x, data->y, data->z, data->w, expected->x, expected->y, expected->z, expected->w, i);
+        ++data;
+        expected = &expected_data[3 * i + 1];
+        ok(compare_vec4(data, expected, 1),
+                "Got color {%.8e, %.8e, %.8e, %.8e}, expected {%.8e, %.8e, %.8e, %.8e} at %u.\n",
+                data->x, data->y, data->z, data->w, expected->x, expected->y, expected->z, expected->w, i);
+        ++data;
+        expected = &expected_data[3 * i + 2];
+        ok(compare_vec4(data, expected, 1),
+                "Got primitive ID {%.8e, %.8e, %.8e, %.8e}, expected {%.8e, %.8e, %.8e, %.8e} at %u.\n",
+                data->x, data->y, data->z, data->w, expected->x, expected->y, expected->z, expected->w, i);
+    }
+    release_resource_readback(&rb);
+
+done:
+    ID3D12QueryHeap_Release(query_heap);
+    ID3D12Resource_Release(readback_buffer);
+    ID3D12Resource_Release(so_buffer);
+    ID3D12Resource_Release(vb);
+    destroy_test_context(&context);
+}
+
 static void test_render_a8(void)
 {
     static const float black[] = {0.0f, 0.0f, 0.0f, 0.0f};
@@ -30274,6 +30606,7 @@ START_TEST(d3d12)
     run_test(test_tessellation_dcl_index_range);
     run_test(test_hull_shader_control_point_phase);
     run_test(test_hull_shader_fork_phase);
+    run_test(test_line_tessellation);
     run_test(test_render_a8);
     run_test(test_cpu_descriptors_lifetime);
     run_test(test_clip_distance);
-- 
2.21.0




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