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gdiplus: Implement GdipGetImage*Resolution.

This commit is contained in:
Vincent Povirk 2009-12-26 20:46:55 -05:00 committed by Alexandre Julliard
parent f71cb580a4
commit 1aea88cac1
4 changed files with 44 additions and 22 deletions
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1
dlls/gdiplus/gdiplus_private.h
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@ -219,6 +219,7 @@ struct GpImage{
UINT palette_count;
UINT palette_size;
ARGB *palette_entries;
REAL xres, yres;
};
struct GpMetafile{

2
dlls/gdiplus/graphics.c
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@ -1262,6 +1262,8 @@ GpStatus WINGDIPAPI GdipCreateMetafileFromWmf(HMETAFILE hwmf, BOOL delete,
(*metafile)->image.palette_count = 0;
(*metafile)->image.palette_size = 0;
(*metafile)->image.palette_entries = NULL;
(*metafile)->image.xres = (REAL)placeable->Inch;
(*metafile)->image.yres = (REAL)placeable->Inch;
(*metafile)->bounds.X = ((REAL) placeable->BoundingBox.Left) / ((REAL) placeable->Inch);
(*metafile)->bounds.Y = ((REAL) placeable->BoundingBox.Top) / ((REAL) placeable->Inch);
(*metafile)->bounds.Width = ((REAL) (placeable->BoundingBox.Right

39
dlls/gdiplus/image.c
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@ -1172,6 +1172,20 @@ static void generate_halftone_palette(ARGB *entries, UINT count)
}
}
static GpStatus get_screen_resolution(REAL *xres, REAL *yres)
{
HDC screendc = GetDC(0);
if (!screendc) return GenericError;
*xres = (REAL)GetDeviceCaps(screendc, LOGPIXELSX);
*yres = (REAL)GetDeviceCaps(screendc, LOGPIXELSY);
ReleaseDC(0, screendc);
return Ok;
}
GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
{
@ -1181,6 +1195,8 @@ GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
HDC hdc;
BYTE *bits;
int i;
REAL xres, yres;
GpStatus stat;
TRACE("%d %d %d %d %p %p\n", width, height, stride, format, scan0, bitmap);
@ -1194,6 +1210,9 @@ GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
if(scan0 && !stride)
return InvalidParameter;
stat = get_screen_resolution(&xres, &yres);
if (stat != Ok) return stat;
row_size = (width * PIXELFORMATBPP(format)+7) / 8;
dib_stride = (row_size + 3) & ~3;
@ -1243,6 +1262,8 @@ GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
(*bitmap)->image.palette_count = 0;
(*bitmap)->image.palette_size = 0;
(*bitmap)->image.palette_entries = NULL;
(*bitmap)->image.xres = xres;
(*bitmap)->image.yres = yres;
(*bitmap)->width = width;
(*bitmap)->height = height;
(*bitmap)->format = format;
@ -1522,15 +1543,14 @@ GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
{
static int calls;
if(!image || !res)
return InvalidParameter;
if(!(calls++))
FIXME("not implemented\n");
*res = image->xres;
return NotImplemented;
TRACE("(%p) <-- %0.2f\n", image, *res);
return Ok;
}
GpStatus WINGDIPAPI GdipGetImagePaletteSize(GpImage *image, INT *size)
@ -1590,15 +1610,14 @@ GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
{
static int calls;
if(!image || !res)
return InvalidParameter;
if(!(calls++))
FIXME("not implemented\n");
*res = image->yres;
return NotImplemented;
TRACE("(%p) <-- %0.2f\n", image, *res);
return Ok;
}
GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)

24
dlls/gdiplus/tests/image.c
View File

@ -843,11 +843,11 @@ static void test_loadwmf(void)
todo_wine expectf(320.0, bounds.Height);
stat = GdipGetImageHorizontalResolution(img, &res);
todo_wine expect(Ok, stat);
expect(Ok, stat);
todo_wine expectf(1440.0, res);
stat = GdipGetImageVerticalResolution(img, &res);
todo_wine expect(Ok, stat);
expect(Ok, stat);
todo_wine expectf(1440.0, res);
GdipDisposeImage(img);
@ -879,12 +879,12 @@ static void test_createfromwmf(void)
todo_wine expectf(320.0, bounds.Height);
stat = GdipGetImageHorizontalResolution(img, &res);
todo_wine expect(Ok, stat);
todo_wine expectf(1440.0, res);
expect(Ok, stat);
expectf(1440.0, res);
stat = GdipGetImageVerticalResolution(img, &res);
todo_wine expect(Ok, stat);
todo_wine expectf(1440.0, res);
expect(Ok, stat);
expectf(1440.0, res);
GdipDisposeImage(img);
}
@ -929,23 +929,23 @@ static void test_resolution(void)
ReleaseDC(0, screendc);
stat = GdipGetImageHorizontalResolution((GpImage*)bitmap, &res);
todo_wine expect(Ok, stat);
todo_wine expectf((REAL)screenxres, res);
expect(Ok, stat);
expectf((REAL)screenxres, res);
stat = GdipGetImageVerticalResolution((GpImage*)bitmap, &res);
todo_wine expect(Ok, stat);
todo_wine expectf((REAL)screenyres, res);
expect(Ok, stat);
expectf((REAL)screenyres, res);
/* test changing the resolution */
stat = GdipBitmapSetResolution(bitmap, screenxres*2.0, screenyres*3.0);
todo_wine expect(Ok, stat);
stat = GdipGetImageHorizontalResolution((GpImage*)bitmap, &res);
todo_wine expect(Ok, stat);
expect(Ok, stat);
todo_wine expectf(screenxres*2.0, res);
stat = GdipGetImageVerticalResolution((GpImage*)bitmap, &res);
todo_wine expect(Ok, stat);
expect(Ok, stat);
todo_wine expectf(screenyres*3.0, res);
stat = GdipDisposeImage((GpImage*)bitmap);