d3d9/tests: Add a test for clearing render targets in an MRT.

dlls/d3d9/tests/visual.c

@@ -9043,7 +9043,7 @@ static void multiple_rendertargets_test(IDirect3DDevice9 *device)
     IDirect3DVertexShader9 *vs;
     IDirect3DPixelShader9 *ps;
     IDirect3DTexture9 *tex1, *tex2;
-    IDirect3DSurface9 *surf1, *surf2, *backbuf;
+    IDirect3DSurface9 *surf1, *surf2, *backbuf, *readback;
     D3DCAPS9 caps;
     DWORD color;
     float quad[] = {
@@ -9075,9 +9075,15 @@ static void multiple_rendertargets_test(IDirect3DDevice9 *device)
     hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xffff0000, 0.0, 0);
     ok(hr == D3D_OK, "IDirect3DDevice9_Clear failed, hr=%08x\n", hr);
 
-    hr = IDirect3DDevice9_CreateTexture(device, 16, 16, 1, D3DUSAGE_RENDERTARGET, D3DFMT_X8R8G8B8, D3DPOOL_DEFAULT, &tex1, NULL);
+    hr = IDirect3DDevice9_CreateOffscreenPlainSurface(device, 16, 16,
+            D3DFMT_A8R8G8B8, D3DPOOL_SYSTEMMEM, &readback, NULL);
+    ok(SUCCEEDED(hr), "CreateOffscreenPlainSurface failed, hr %#x.\n", hr);
+
+    hr = IDirect3DDevice9_CreateTexture(device, 16, 16, 1, D3DUSAGE_RENDERTARGET,
+            D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &tex1, NULL);
     ok(hr == D3D_OK, "IDirect3DDevice9_CreateTexture failed, hr=%08x\n", hr);
-    hr = IDirect3DDevice9_CreateTexture(device, 16, 16, 1, D3DUSAGE_RENDERTARGET, D3DFMT_X8R8G8B8, D3DPOOL_DEFAULT, &tex2, NULL);
+    hr = IDirect3DDevice9_CreateTexture(device, 16, 16, 1, D3DUSAGE_RENDERTARGET,
+            D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &tex2, NULL);
     ok(hr == D3D_OK, "IDirect3DDevice9_CreateTexture failed, hr=%08x\n", hr);
     hr = IDirect3DDevice9_CreateVertexShader(device, vshader_code, &vs);
     ok(SUCCEEDED(hr), "CreateVertexShader failed, hr %#x.\n", hr);
@@ -9102,6 +9108,32 @@ static void multiple_rendertargets_test(IDirect3DDevice9 *device)
     hr = IDirect3DDevice9_SetFVF(device, D3DFVF_XYZ);
     ok(hr == D3D_OK, "IDirect3DDevice9_SetFVF failed, hr=%08x\n", hr);
 
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xff0000ff, 0.0f, 0);
+    ok(SUCCEEDED(hr), "Clear failed, hr %#x,\n", hr);
+    hr = IDirect3DDevice9_GetRenderTargetData(device, surf1, readback);
+    ok(SUCCEEDED(hr), "GetRenderTargetData failed, hr %#x.\n", hr);
+    color = getPixelColorFromSurface(readback, 8, 8);
+    ok(color_match(color, D3DCOLOR_ARGB(0xff, 0x00, 0x00, 0xff), 0),
+            "Expected color 0x000000ff, got 0x%08x.\n", color);
+    hr = IDirect3DDevice9_GetRenderTargetData(device, surf2, readback);
+    ok(SUCCEEDED(hr), "GetRenderTargetData failed, hr %#x.\n", hr);
+    color = getPixelColorFromSurface(readback, 8, 8);
+    ok(color_match(color, D3DCOLOR_ARGB(0xff, 0x00, 0x00, 0xff), 0),
+            "Expected color 0x000000ff, got 0x%08x.\n", color);
+
+    hr = IDirect3DDevice9_Clear(device, 0, NULL, D3DCLEAR_TARGET, 0xff00ff00, 0.0f, 0);
+    ok(SUCCEEDED(hr), "Clear failed, hr %#x,\n", hr);
+    hr = IDirect3DDevice9_GetRenderTargetData(device, surf1, readback);
+    ok(SUCCEEDED(hr), "GetRenderTargetData failed, hr %#x.\n", hr);
+    color = getPixelColorFromSurface(readback, 8, 8);
+    ok(color_match(color, D3DCOLOR_ARGB(0xff, 0x00, 0xff, 0x00), 0),
+            "Expected color 0x0000ff00, got 0x%08x.\n", color);
+    hr = IDirect3DDevice9_GetRenderTargetData(device, surf2, readback);
+    ok(SUCCEEDED(hr), "GetRenderTargetData failed, hr %#x.\n", hr);
+    color = getPixelColorFromSurface(readback, 8, 8);
+    ok(color_match(color, D3DCOLOR_ARGB(0xff, 0x00, 0xff, 0x00), 0),
+            "Expected color 0x0000ff00, got 0x%08x.\n", color);
+
     hr = IDirect3DDevice9_BeginScene(device);
     ok(hr == D3D_OK, "IDirect3DDevice9_BeginScene failed, hr=%08x\n", hr);
     if(SUCCEEDED(hr)) {
@@ -9149,6 +9181,7 @@ static void multiple_rendertargets_test(IDirect3DDevice9 *device)
     IDirect3DSurface9_Release(surf1);
     IDirect3DSurface9_Release(surf2);
     IDirect3DSurface9_Release(backbuf);
+    IDirect3DSurface9_Release(readback);
 }
 
 struct formats {