windowscodecs/tests: Add a test for loading PNG grayscale images.
Vincent Povirk
vincent at codeweavers.com
Thu Aug 17 13:35:29 CDT 2017
From: Dmitry Timoshkov <dmitry at baikal.ru>
Signed-off-by: Vincent Povirk <vincent at codeweavers.com>
---
dlls/windowscodecs/tests/pngformat.c | 58 +++++++++++++++++++++++++++++++++++-
1 file changed, 57 insertions(+), 1 deletion(-)
diff --git a/dlls/windowscodecs/tests/pngformat.c b/dlls/windowscodecs/tests/pngformat.c
index 1aeb9bc..58f698d 100644
--- a/dlls/windowscodecs/tests/pngformat.c
+++ b/dlls/windowscodecs/tests/pngformat.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2012 Dmitry Timoshkov
+ * Copyright 2012,2016 Dmitry Timoshkov
* Copyright 2012 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
@@ -580,6 +580,61 @@ static void test_png_palette(void)
IWICBitmapDecoder_Release(decoder);
}
+/* RGB 24 bpp 1x1 pixel PNG image */
+static const char png_1x1_data[] = {
+ 0x89,'P','N','G',0x0d,0x0a,0x1a,0x0a,
+ 0x00,0x00,0x00,0x0d,'I','H','D','R',0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x08,0x02,0x00,0x00,0x00,0x90,0x77,0x53,0xde,
+ 0x00,0x00,0x00,0x0c,'I','D','A','T',0x08,0xd7,0x63,0xf8,0xff,0xff,0x3f,0x00,0x05,0xfe,0x02,0xfe,0xdc,0xcc,0x59,0xe7,
+ 0x00,0x00,0x00,0x00,'I','E','N','D',0xae,0x42,0x60,0x82
+};
+
+static void test_color_formats(void)
+{
+ static const struct
+ {
+ char bit_depth, color_type;
+ const GUID *format;
+ } td[] =
+ {
+ /* 2 - PNG_COLOR_TYPE_RGB */
+ { 8, 2, &GUID_WICPixelFormat24bppBGR },
+ /* 0 - PNG_COLOR_TYPE_GRAY */
+ { 1, 0, &GUID_WICPixelFormatBlackWhite },
+ { 2, 0, &GUID_WICPixelFormat2bppGray },
+ { 4, 0, &GUID_WICPixelFormat4bppGray },
+ { 8, 0, &GUID_WICPixelFormat8bppGray },
+ { 16, 0, &GUID_WICPixelFormat16bppGray },
+ };
+ char buf[sizeof(png_1x1_data)];
+ HRESULT hr;
+ IWICBitmapDecoder *decoder;
+ IWICBitmapFrameDecode *frame;
+ GUID format;
+ int i;
+
+ for (i = 0; i < sizeof(td)/sizeof(td[0]); i++)
+ {
+ memcpy(buf, png_1x1_data, sizeof(png_1x1_data));
+ buf[24] = td[i].bit_depth;
+ buf[25] = td[i].color_type;
+
+ decoder = create_decoder(buf, sizeof(buf));
+ ok(decoder != NULL, "Failed to load PNG image data\n");
+ if (!decoder) continue;
+
+ hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
+ ok(hr == S_OK, "GetFrame error %#x\n", hr);
+
+ hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &format);
+ ok(hr == S_OK, "GetPixelFormat error %#x\n", hr);
+ ok(IsEqualGUID(&format, td[i].format),
+ "expected %s, got %s\n", wine_dbgstr_guid(td[i].format), wine_dbgstr_guid(&format));
+
+ IWICBitmapFrameDecode_Release(frame);
+ IWICBitmapDecoder_Release(decoder);
+ }
+}
+
START_TEST(pngformat)
{
HRESULT hr;
@@ -592,6 +647,7 @@ START_TEST(pngformat)
test_color_contexts();
test_png_palette();
+ test_color_formats();
IWICImagingFactory_Release(factory);
CoUninitialize();
--
2.7.4
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