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d2d1: Fix GetGradientStops() when asked for more stops than collection has. 

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Nikolay Sivov 2016-11-25 10:15:24 +03:00 committed by Alexandre Julliard
parent 1e78138b58
commit 463d1877ae
2 changed files with 60 additions and 2 deletions
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2
dlls/d2d1/brush.c
View File

@ -108,8 +108,6 @@ static void STDMETHODCALLTYPE d2d_gradient_GetGradientStops(ID2D1GradientStopCol
TRACE("iface %p, stops %p, stop_count %u.\n", iface, stops, stop_count);
memcpy(stops, gradient->stops, min(gradient->stop_count, stop_count) * sizeof(*stops));
if (stop_count > gradient->stop_count)
memset(stops, 0, (stop_count - gradient->stop_count) * sizeof(*stops));
}
static D2D1_GAMMA STDMETHODCALLTYPE d2d_gradient_GetColorInterpolationGamma(ID2D1GradientStopCollection *iface)

60
dlls/d2d1/tests/d2d1.c
View File

@ -3475,6 +3475,65 @@ static void test_stroke_style(void)
ID2D1Factory_Release(factory);
}
static void test_gradient(void)
{
ID2D1GradientStopCollection *gradient;
D2D1_GRADIENT_STOP stops[3], stops2[3];
IDXGISwapChain *swapchain;
ID2D1RenderTarget *rt;
ID3D10Device1 *device;
IDXGISurface *surface;
D2D1_COLOR_F color;
unsigned int i;
UINT32 count;
HWND window;
HRESULT hr;
if (!(device = create_device()))
{
skip("Failed to create device, skipping tests.\n");
return;
}
window = CreateWindowA("static", "d2d1_test", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
0, 0, 640, 480, NULL, NULL, NULL, NULL);
swapchain = create_swapchain(device, window, TRUE);
hr = IDXGISwapChain_GetBuffer(swapchain, 0, &IID_IDXGISurface, (void **)&surface);
ok(SUCCEEDED(hr), "Failed to get buffer, hr %#x.\n", hr);
rt = create_render_target(surface);
ok(!!rt, "Failed to create render target.\n");
stops2[0].position = 0.5f;
set_color(&stops2[0].color, 1.0f, 1.0f, 0.0f, 1.0f);
stops2[1] = stops2[0];
hr = ID2D1RenderTarget_CreateGradientStopCollection(rt, stops2, 2, D2D1_GAMMA_2_2,
D2D1_EXTEND_MODE_CLAMP, &gradient);
ok(SUCCEEDED(hr), "Failed to create stop collection, hr %#x.\n", hr);
count = ID2D1GradientStopCollection_GetGradientStopCount(gradient);
ok(count == 2, "Unexpected stop count %u.\n", count);
/* Request more stops than collection has. */
stops[0].position = 123.4f;
set_color(&stops[0].color, 1.0f, 0.5f, 0.4f, 1.0f);
color = stops[0].color;
stops[2] = stops[1] = stops[0];
ID2D1GradientStopCollection_GetGradientStops(gradient, stops, sizeof(stops)/sizeof(stops[0]));
ok(!memcmp(stops, stops2, sizeof(*stops) * count), "Unexpected gradient stops array.\n");
for (i = count; i < sizeof(stops)/sizeof(stops[0]); i++)
{
ok(stops[i].position == 123.4f, "%u: unexpected stop position %f.\n", i, stops[i].position);
ok(!memcmp(&stops[i].color, &color, sizeof(color)), "%u: unexpected stop color.\n", i);
}
ID2D1GradientStopCollection_Release(gradient);
ID2D1RenderTarget_Release(rt);
IDXGISurface_Release(surface);
IDXGISwapChain_Release(swapchain);
ID3D10Device1_Release(device);
DestroyWindow(window);
}
START_TEST(d2d1)
{
test_clip();
@ -3496,4 +3555,5 @@ START_TEST(d2d1)
test_bitmap_target();
test_desktop_dpi();
test_stroke_style();
test_gradient();
}