int
main (int argc, char **argv)
{
GpImage *img;
gunichar2 *unis;
GpBitmap *bitmap;
GpStatus status;
int original_palette_size;
int reloaded_palette_size;
ColorPalette *original_palette;
ColorPalette *reloaded_palette;
GdiplusStartupInput gdiplusStartupInput;
ULONG_PTR gdiplusToken;
PixelFormat pixel_format;
ARGB color;
GdiplusStartup(&gdiplusToken, &gdiplusStartupInput, NULL);
// PNG resave should preserve the palette transparency. Let's test it
// by loading a PNG file and its palette, then resaving it and loading
// it again for comparison.
unis = g_utf8_to_utf16 ("test-trns.png", -1, NULL, NULL, NULL);
status = GdipLoadImageFromFile (unis, &img);
CHECK_STATUS(1);
g_free (unis);
status = GdipGetImagePaletteSize (img, &original_palette_size);
CHECK_STATUS(1);
CHECK_ASSERT(original_palette_size > 0);
original_palette = malloc (original_palette_size);
GdipGetImagePalette (img, original_palette, original_palette_size);
CHECK_STATUS(1);
unis = g_utf8_to_utf16 ("test-trns-resave.png", -1, NULL, NULL, NULL);
status = GdipSaveImageToFile (img, unis, &png_clsid, NULL);
CHECK_STATUS(1);
GdipDisposeImage (img);
status = GdipLoadImageFromFile (unis, &img);
CHECK_STATUS(1);
g_free (unis);
status = GdipGetImagePaletteSize (img, &reloaded_palette_size);
CHECK_STATUS(1);
CHECK_ASSERT(reloaded_palette_size > 0);
CHECK_ASSERT(reloaded_palette_size == original_palette_size);
reloaded_palette = malloc (reloaded_palette_size);
GdipGetImagePalette (img, reloaded_palette, reloaded_palette_size);
CHECK_STATUS(1);
CHECK_ASSERT(memcmp (original_palette, reloaded_palette, original_palette_size) == 0);
GdipDisposeImage (img);
img = NULL;
unlink ("test-trns-resave.png");
free (original_palette);
free (reloaded_palette);
// Test grayscale image with alpha channel. The image should be converted
// into 32-bit ARGB format and the alpha channel should be preserved.
unis = g_utf8_to_utf16 ("test-gsa.png", -1, NULL, NULL, NULL);
status = GdipCreateBitmapFromFile (unis, &bitmap);
CHECK_STATUS(1);
g_free (unis);
status = GdipGetImagePixelFormat (bitmap, &pixel_format);
CHECK_STATUS(1);
CHECK_ASSERT(pixel_format == PixelFormat32bppARGB);
status = GdipBitmapGetPixel (bitmap, 0, 0, &color);
CHECK_STATUS(1);
CHECK_ASSERT(color == 0xffffff);
status = GdipBitmapGetPixel (bitmap, 1, 7, &color);
CHECK_STATUS(1);
CHECK_ASSERT(color == 0xe8b3b3b3);
GdipDisposeImage (bitmap);
return 0;
}
static void test_emfonly(void)
{
GpStatus stat;
GpMetafile *metafile;
GpGraphics *graphics;
HDC hdc, metafile_dc;
HENHMETAFILE hemf;
BOOL ret;
static const GpRectF frame = {0.0, 0.0, 100.0, 100.0};
static const GpPointF dst_points[3] = {{0.0,0.0},{100.0,0.0},{0.0,100.0}};
static const WCHAR description[] = {'w','i','n','e','t','e','s','t',0};
HBRUSH hbrush, holdbrush;
GpBitmap *bitmap;
ARGB color;
hdc = CreateCompatibleDC(0);
stat = GdipRecordMetafile(hdc, EmfTypeEmfOnly, &frame, MetafileFrameUnitPixel, description, &metafile);
expect(Ok, stat);
DeleteDC(hdc);
if (stat != Ok)
return;
stat = GdipGetHemfFromMetafile(metafile, &hemf);
expect(InvalidParameter, stat);
stat = GdipGetImageGraphicsContext((GpImage*)metafile, &graphics);
expect(Ok, stat);
stat = GdipGetDC(graphics, &metafile_dc);
expect(Ok, stat);
if (stat != Ok)
{
GdipDeleteGraphics(graphics);
GdipDisposeImage((GpImage*)metafile);
return;
}
hbrush = CreateSolidBrush(0xff0000);
holdbrush = SelectObject(metafile_dc, hbrush);
Rectangle(metafile_dc, 25, 25, 75, 75);
SelectObject(metafile_dc, holdbrush);
DeleteObject(hbrush);
stat = GdipReleaseDC(graphics, metafile_dc);
expect(Ok, stat);
stat = GdipDeleteGraphics(graphics);
expect(Ok, stat);
check_metafile(metafile, emfonly_records, "emfonly metafile", dst_points, &frame, UnitPixel);
stat = GdipCreateBitmapFromScan0(100, 100, 0, PixelFormat32bppARGB, NULL, &bitmap);
expect(Ok, stat);
stat = GdipGetImageGraphicsContext((GpImage*)bitmap, &graphics);
expect(Ok, stat);
play_metafile(metafile, graphics, emfonly_records, "emfonly playback", dst_points, &frame, UnitPixel);
stat = GdipBitmapGetPixel(bitmap, 15, 15, &color);
expect(Ok, stat);
expect(0, color);
stat = GdipBitmapGetPixel(bitmap, 50, 50, &color);
expect(Ok, stat);
expect(0xff0000ff, color);
stat = GdipDeleteGraphics(graphics);
expect(Ok, stat);
stat = GdipDisposeImage((GpImage*)bitmap);
expect(Ok, stat);
stat = GdipGetHemfFromMetafile(metafile, &hemf);
expect(Ok, stat);
stat = GdipDisposeImage((GpImage*)metafile);
expect(Ok, stat);
check_emfplus(hemf, emfonly_records, "emfonly emf");
ret = DeleteEnhMetaFile(hemf);
ok(ret != 0, "Failed to delete enhmetafile %p\n", hemf);
}