d3d9/tests: Test using a "NULL" texture with a smaller D/S texture.

dlls/d3d9/tests/visual.c

@@ -24931,6 +24931,7 @@ done:
 
 static void test_null_format(void)
 {
+    static const D3DVIEWPORT9 vp_part_400 = {0, 100, 400, 200, 0.0f, 1.0f};
     static const D3DVIEWPORT9 vp_lower = {0, 60, 640, 420, 0.0f, 1.0f};
     static const D3DVIEWPORT9 vp_560 = {0, 180, 560, 300, 0.0f, 1.0f};
     static const D3DVIEWPORT9 vp_full = {0, 0, 640, 480, 0.0f, 1.0f};
@@ -24984,8 +24985,21 @@ static void test_null_format(void)
         {440, 320, 0x000000ff},
         {520, 320, 0x00000000},
         {600, 320, 0x0000ff00},
+    },
+    expected_small[] =
+    {
+        {100, 100, 0x00ff0000},
+        {200, 100, 0x00ff0000},
+        {300, 100, 0x00ff0000},
+        {100, 150, 0x00000000},
+        {200, 150, 0x00000000},
+        {300, 150, 0x00ff0000},
+        {100, 200, 0x00000000},
+        {200, 200, 0x00000000},
+        {300, 200, 0x00ff0000},
     };
     IDirect3DSurface9 *original_rt, *small_rt, *null_rt, *small_null_rt;
+    IDirect3DSurface9 *original_ds, *small_ds;
     struct surface_readback rb;
     IDirect3DDevice9 *device;
     IDirect3D9 *d3d;
@@ -25027,6 +25041,12 @@ static void test_null_format(void)
             D3DMULTISAMPLE_NONE, 0, FALSE, &small_null_rt, NULL);
     ok(SUCCEEDED(hr), "Failed to create render target, hr %#x.\n", hr);
 
+    hr = IDirect3DDevice9_GetDepthStencilSurface(device, &original_ds);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9_CreateDepthStencilSurface(device, 400, 300, D3DFMT_D24S8, 0, 0, FALSE,
+            &small_ds, NULL);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
     hr = IDirect3DDevice9_SetFVF(device, D3DFVF_XYZ | D3DFVF_DIFFUSE);
     ok(SUCCEEDED(hr), "Failed to set FVF, hr %#x.\n", hr);
     hr = IDirect3DDevice9_SetRenderState(device, D3DRS_ZENABLE, D3DZB_TRUE);
@@ -25112,9 +25132,54 @@ static void test_null_format(void)
     }
     release_surface_readback(&rb);
 
+    /* Clears and draws on a depth buffer smaller than the "NULL" RT work just
+     * fine. */
+    hr = IDirect3DDevice9_SetRenderTarget(device, 0, null_rt);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetDepthStencilSurface(device, small_ds);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9_SetViewport(device, &vp_full);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_ZBUFFER, 0, 0.6f, 0);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_SetViewport(device, &vp_part_400);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_BeginScene(device);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9_DrawPrimitiveUP(device, D3DPT_TRIANGLESTRIP, 2, quad_partial, sizeof(*quad_partial));
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_SetRenderTarget(device, 0, small_rt);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0, 0.0f, 0);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_DrawPrimitiveUP(device, D3DPT_TRIANGLESTRIP, 2, quad, sizeof(*quad));
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+    hr = IDirect3DDevice9_EndScene(device);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
+
+    get_rt_readback(small_rt, &rb);
+    for (i = 0; i < ARRAY_SIZE(expected_small); ++i)
+    {
+        color = get_readback_color(&rb, expected_small[i].x, expected_small[i].y);
+        ok(color_match(color, expected_small[i].color, 1),
+                "Expected color 0x%08x at (%u, %u), got 0x%08x.\n",
+                expected_small[i].color, expected_small[i].x, expected_small[i].y, color);
+    }
+    release_surface_readback(&rb);
+
+    hr = IDirect3DDevice9_StretchRect(device, small_rt, NULL, original_rt, NULL, D3DTEXF_POINT);
+    ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
     hr = IDirect3DDevice9_Present(device, NULL, NULL, NULL, NULL);
     ok(SUCCEEDED(hr), "Failed to present, hr %#x.\n", hr);
 
+    IDirect3DSurface9_Release(small_ds);
+    IDirect3DSurface9_Release(original_ds);
     IDirect3DSurface9_Release(small_null_rt);
     IDirect3DSurface9_Release(null_rt);
     IDirect3DSurface9_Release(small_rt);