[PATCH v5 1/2] dwrite: Return render bounds if text not intersect to BitmapRenderTarget

[Tingzhong Luo]

From: Tingzhong Luo

Signed-off-by: Tingzhong Luo 
---
 dlls/dwrite/gdiinterop.c | 1 +
 dlls/dwrite/tests/font.c | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/dlls/dwrite/gdiinterop.c b/dlls/dwrite/gdiinterop.c
index 5b542d93e32..2eafe4064d2 100644
--- a/dlls/dwrite/gdiinterop.c
+++ b/dlls/dwrite/gdiinterop.c
@@ -451,6 +451,7 @@ static HRESULT WINAPI rendertarget_DrawGlyphRun(IDWriteBitmapRenderTarget1 *ifac
         }
         texturetype = DWRITE_TEXTURE_CLEARTYPE_3x1;
     }
+    if (bbox_ret) *bbox_ret = bounds;

if (IntersectRect(&target_rect, &target_rect, &bounds))
     {
diff --git a/dlls/dwrite/tests/font.c b/dlls/dwrite/tests/font.c
index 81008db6f23..5052de00329 100644
--- a/dlls/dwrite/tests/font.c
+++ b/dlls/dwrite/tests/font.c
@@ -1225,6 +1225,7 @@ static void test_CreateBitmapRenderTarget(void)
     SIZE size;
     ULONG ref;
     UINT32 ch;
+    RECT box;
     HDC hdc;
     int ret;

@@ -1507,6 +1508,13 @@ static void test_CreateBitmapRenderTarget(void)
         &run, params, RGB(255, 0, 0), NULL);
     ok(hr == S_OK, "Failed to draw a run, hr %#lx.\n", hr);

+    /* Got render bounds if not intersect to render target */
+    SetRectEmpty(&box);
+    hr = IDWriteBitmapRenderTarget_DrawGlyphRun(target, -100.0f, -100.0f, DWRITE_MEASURING_MODE_GDI_NATURAL,
+       &run, params, RGB(255, 0, 0), &box);
+    ok(hr == S_OK, "Failed to draw a run, hr %#lx.\n", hr);
+    ok(!IsRectEmpty(&box), "got empty rect\n");
+
     IDWriteRenderingParams_Release(params);

/* Zero sized target returns earlier. */