Henri Verbeet : ddraw: Return early in d3d_device7_DrawPrimitive() with a 0 vertex count.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a849cc1bd3eadae626ec69a4c76727aff6407513
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=a849cc1bd3eadae626ec69a4c76727aff6407513

Author: Henri Verbeet <hverbeet at codeweavers.com>
Date:   Fri Apr 22 17:11:51 2016 +0200

ddraw: Return early in d3d_device7_DrawPrimitive() with a 0 vertex count.

Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/ddraw/device.c       | 7 +++++--
 dlls/ddraw/tests/ddraw2.c | 2 +-
 dlls/ddraw/tests/ddraw4.c | 2 +-
 dlls/ddraw/tests/ddraw7.c | 2 +-
 4 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/dlls/ddraw/device.c b/dlls/ddraw/device.c
index 0c53e52..ca001cf 100644
--- a/dlls/ddraw/device.c
+++ b/dlls/ddraw/device.c
@@ -3508,8 +3508,11 @@ static HRESULT d3d_device7_DrawPrimitive(IDirect3DDevice7 *iface,
     TRACE("iface %p, primitive_type %#x, fvf %#x, vertices %p, vertex_count %u, flags %#x.\n",
             iface, primitive_type, fvf, vertices, vertex_count, flags);
 
-    if (!vertices)
-        return DDERR_INVALIDPARAMS;
+    if (!vertex_count)
+    {
+        WARN("0 vertex count.\n");
+        return D3D_OK;
+    }
 
     /* Get the stride */
     stride = get_flexible_vertex_size(fvf);
diff --git a/dlls/ddraw/tests/ddraw2.c b/dlls/ddraw/tests/ddraw2.c
index d11cb2a..fdba786 100644
--- a/dlls/ddraw/tests/ddraw2.c
+++ b/dlls/ddraw/tests/ddraw2.c
@@ -10134,7 +10134,7 @@ static void test_draw_primitive(void)
     hr = IDirect3DDevice2_DrawIndexedPrimitive(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, NULL, 0, NULL, 0, 0);
     ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice2_DrawPrimitive(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, NULL, 0, 0);
-    todo_wine ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
+    ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
 
     hr = IDirect3DDevice2_DrawIndexedPrimitive(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, NULL, 0, indices, 4, 0);
     ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
diff --git a/dlls/ddraw/tests/ddraw4.c b/dlls/ddraw/tests/ddraw4.c
index c0ea11b..3be2b87 100644
--- a/dlls/ddraw/tests/ddraw4.c
+++ b/dlls/ddraw/tests/ddraw4.c
@@ -11427,7 +11427,7 @@ static void test_draw_primitive(void)
     hr = IDirect3DDevice3_DrawIndexedPrimitiveVB(device, D3DPT_TRIANGLESTRIP, vb, NULL, 0, 0);
     todo_wine ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice3_DrawPrimitive(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, NULL, 0, 0);
-    todo_wine ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
+    ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice3_DrawPrimitiveStrided(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, &strided, 0, 0);
     ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice3_DrawPrimitiveVB(device, D3DPT_TRIANGLESTRIP, vb, 0, 0, 0);
diff --git a/dlls/ddraw/tests/ddraw7.c b/dlls/ddraw/tests/ddraw7.c
index 0b30467..4eb8fd6 100644
--- a/dlls/ddraw/tests/ddraw7.c
+++ b/dlls/ddraw/tests/ddraw7.c
@@ -11694,7 +11694,7 @@ static void test_draw_primitive(void)
     hr = IDirect3DDevice7_DrawIndexedPrimitiveVB(device, D3DPT_TRIANGLESTRIP, vb, 0, 0, NULL, 0, 0);
     todo_wine ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice7_DrawPrimitive(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, NULL, 0, 0);
-    todo_wine ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
+    ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice7_DrawPrimitiveStrided(device, D3DPT_TRIANGLESTRIP, D3DFVF_XYZ, &strided, 0, 0);
     ok(SUCCEEDED(hr), "Failed to draw, hr %#x.\n", hr);
     hr = IDirect3DDevice7_DrawPrimitiveVB(device, D3DPT_TRIANGLESTRIP, vb, 0, 0, 0);