gdi32/tests: Add EMF palette tests.

dlls/gdi32/tests/metafile.c

@@ -4802,6 +4802,83 @@ static void test_mf_palette(void)
     ok(ret, "DeleteMetaFile(%p) error %ld\n", hmf, GetLastError());
 }
 
+static void test_emf_palette(void)
+{
+    char logpalettebuf[sizeof(LOGPALETTE) + sizeof(logpalettedata)];
+    LOGPALETTE *logpalette = (PLOGPALETTE)logpalettebuf;
+    HPALETTE hpal, old_pal, def_pal;
+    HENHMETAFILE emf;
+    HDC hdc;
+    BOOL ret;
+
+    static const unsigned char palette_bits[] =
+    {
+        0x01, 0x00, 0x00, 0x00, 0x6c, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xe6, 0xff, 0xff, 0xff, 0xe6, 0xff, 0xff, 0xff,
+        0x20, 0x45, 0x4d, 0x46, 0x00, 0x00, 0x01, 0x00,
+        0xf0, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00,
+        0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
+        0x80, 0x07, 0x00, 0x00, 0xcd, 0x03, 0x00, 0x00,
+        0xfc, 0x01, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x60, 0xc0, 0x07, 0x00,
+        0x9f, 0xed, 0x03, 0x00, 0x31, 0x00, 0x00, 0x00,
+        0x30, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x00, 0x03, 0x08, 0x00, 0x10, 0x20, 0x30, 0x00,
+        0x20, 0x30, 0x40, 0x00, 0x30, 0x40, 0x50, 0x00,
+        0x40, 0x50, 0x60, 0x00, 0x50, 0x60, 0x70, 0x00,
+        0x60, 0x70, 0x80, 0x00, 0x70, 0x80, 0x90, 0x00,
+        0x80, 0x90, 0xa0, 0x00, 0x30, 0x00, 0x00, 0x00,
+        0x0c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
+        0x34, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
+        0x30, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00,
+        0x0f, 0x00, 0x00, 0x80, 0x0e, 0x00, 0x00, 0x00,
+        0x34, 0x00, 0x00, 0x00, 0x08, 0x00, 0x00, 0x00,
+        0x10, 0x00, 0x00, 0x00, 0x10, 0x20, 0x30, 0x00,
+        0x20, 0x30, 0x40, 0x00, 0x30, 0x40, 0x50, 0x00,
+        0x40, 0x50, 0x60, 0x00, 0x50, 0x60, 0x70, 0x00,
+        0x60, 0x70, 0x80, 0x00, 0x70, 0x80, 0x90, 0x00,
+        0x80, 0x90, 0xa0, 0x00, 0x34, 0x00, 0x00, 0x00
+    };
+
+    hdc = CreateEnhMetaFileA(NULL, NULL, NULL, NULL);
+    ok(hdc != 0, "CreateMetaFileA error %ld\n", GetLastError());
+
+    /* Initialize the logical palette with a few colours */
+    logpalette->palVersion = 0x300;
+    logpalette->palNumEntries = ARRAY_SIZE(logpalettedata);
+    memcpy(logpalette->palPalEntry, logpalettedata, sizeof(logpalettedata));
+    hpal = CreatePalette(logpalette);
+    old_pal = SelectPalette(hdc, hpal, FALSE);
+    def_pal = GetStockObject(DEFAULT_PALETTE);
+    ok(old_pal == def_pal, "old_pal=%p, expected %p\n", old_pal, def_pal);
+
+    ret = RealizePalette(hdc);
+    ok(!ret, "RealizePalette returned %d\n", ret);
+
+    old_pal = SelectPalette(hdc, GetStockObject(DEFAULT_PALETTE), FALSE);
+    ok(old_pal == hpal, "old_pal=%p, expected %p\n", old_pal, hpal);
+
+    ret = RealizePalette(hdc);
+    ok(!ret, "RealizePalette returned %d\n", ret);
+
+    emf = CloseEnhMetaFile(hdc);
+    ok(emf != 0, "CloseEnhMetaFile error %ld\n", GetLastError());
+
+    if (compare_emf_bits(emf, palette_bits, sizeof(palette_bits), "emf_palette", FALSE))
+    {
+        dump_emf_bits(emf, "emf_palette");
+        dump_emf_records(emf, "emf_palette");
+    }
+
+    ret = DeleteEnhMetaFile(emf);
+    ok(ret, "DeleteMetaFile error %ld\n", GetLastError());
+}
+
 static void test_mf_blit(void)
 {
     BITMAPINFO bmi = {{ sizeof(bmi) }};
@@ -10670,6 +10747,7 @@ START_TEST(metafile)
     test_emf_mask_blit();
     test_emf_StretchDIBits();
     test_emf_SetDIBitsToDevice();
+    test_emf_palette();
 
     /* For win-format metafiles (mfdrv) */
     test_mf_SaveDC();