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gdiplus: Replace DPtoLP with an internal coordinate space constant. 

This will allow us to temporarily remove gdi transforms later, without
affecting internal logic that accounts for them.

Signed-off-by: Vincent Povirk <vincent@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Vincent Povirk 2017-08-28 11:42:14 -05:00 committed by Alexandre Julliard
parent 5c12cede8d
commit cfa4f088ee
2 changed files with 98 additions and 37 deletions
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4
dlls/gdiplus/gdiplus_private.h
View File

@ -79,8 +79,12 @@ extern REAL units_to_pixels(REAL units, GpUnit unit, REAL dpi) DECLSPEC_HIDDEN;
extern REAL pixels_to_units(REAL pixels, GpUnit unit, REAL dpi) DECLSPEC_HIDDEN;
extern REAL units_scale(GpUnit from, GpUnit to, REAL dpi) DECLSPEC_HIDDEN;
#define WineCoordinateSpaceGdiDevice ((GpCoordinateSpace)4)
extern GpStatus get_graphics_transform(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpMatrix *matrix) DECLSPEC_HIDDEN;
extern GpStatus gdip_transform_points(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpPointF *points, INT count) DECLSPEC_HIDDEN;
extern GpStatus graphics_from_image(GpImage *image, GpGraphics **graphics) DECLSPEC_HIDDEN;
extern GpStatus encode_image_png(GpImage *image, IStream* stream, GDIPCONST EncoderParameters* params) DECLSPEC_HIDDEN;

131
dlls/gdiplus/graphics.c
View File

@ -2067,19 +2067,30 @@ static GpStatus get_graphics_bounds(GpGraphics* graphics, GpRectF* rect)
if (graphics->hdc)
{
POINT points[2];
GpPointF points[4], min_point, max_point;
int i;
points[0].x = rect->X;
points[0].y = rect->Y;
points[1].x = rect->X + rect->Width;
points[1].y = rect->Y + rect->Height;
points[0].X = points[2].X = rect->X;
points[0].Y = points[1].Y = rect->Y;
points[1].X = points[3].X = rect->X + rect->Width;
points[2].Y = points[3].Y = rect->Y + rect->Height;
DPtoLP(graphics->hdc, points, sizeof(points)/sizeof(points[0]));
gdip_transform_points(graphics, CoordinateSpaceDevice, WineCoordinateSpaceGdiDevice, points, 4);
rect->X = min(points[0].x, points[1].x);
rect->Y = min(points[0].y, points[1].y);
rect->Width = abs(points[1].x - points[0].x);
rect->Height = abs(points[1].y - points[0].y);
min_point = max_point = points[0];
for (i=1; i<4; i++)
{
if (points[i].X < min_point.X) min_point.X = points[i].X;
if (points[i].Y < min_point.Y) min_point.Y = points[i].Y;
if (points[i].X > max_point.X) max_point.X = points[i].X;
if (points[i].Y > max_point.Y) max_point.Y = points[i].Y;
}
rect->X = min_point.X;
rect->Y = min_point.Y;
rect->Width = max_point.X - min_point.X;
rect->Height = max_point.Y - min_point.Y;
}
return stat;
@ -6547,6 +6558,20 @@ GpStatus WINGDIPAPI GdipGetClip(GpGraphics *graphics, GpRegion *region)
return Ok;
}
static void get_gdi_transform(GpGraphics *graphics, GpMatrix *matrix)
{
XFORM xform;
if (graphics->hdc == NULL)
{
GdipSetMatrixElements(matrix, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0);
return;
}
GetTransform(graphics->hdc, 0x204, &xform);
GdipSetMatrixElements(matrix, xform.eM11, xform.eM12, xform.eM21, xform.eM22, xform.eDx, xform.eDy);
}
GpStatus get_graphics_transform(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpMatrix *matrix)
{
@ -6566,23 +6591,29 @@ GpStatus get_graphics_transform(GpGraphics *graphics, GpCoordinateSpace dst_spac
scale_y *= graphics->scale;
}
/* transform from src_space to CoordinateSpacePage */
switch (src_space)
if (dst_space < src_space)
{
case CoordinateSpaceWorld:
GdipMultiplyMatrix(matrix, &graphics->worldtrans, MatrixOrderAppend);
break;
case CoordinateSpacePage:
break;
case CoordinateSpaceDevice:
GdipScaleMatrix(matrix, 1.0/scale_x, 1.0/scale_y, MatrixOrderAppend);
break;
}
/* transform from CoordinateSpacePage to dst_space */
switch (dst_space)
{
case CoordinateSpaceWorld:
/* transform towards world space */
switch ((int)src_space)
{
case WineCoordinateSpaceGdiDevice:
{
GpMatrix gdixform;
get_gdi_transform(graphics, &gdixform);
stat = GdipInvertMatrix(&gdixform);
if (stat != Ok)
break;
GdipMultiplyMatrix(matrix, &gdixform, MatrixOrderAppend);
if (dst_space == CoordinateSpaceDevice)
break;
/* else fall-through */
}
case CoordinateSpaceDevice:
GdipScaleMatrix(matrix, 1.0/scale_x, 1.0/scale_y, MatrixOrderAppend);
if (dst_space == CoordinateSpacePage)
break;
/* else fall-through */
case CoordinateSpacePage:
{
GpMatrix inverted_transform = graphics->worldtrans;
stat = GdipInvertMatrix(&inverted_transform);
@ -6590,22 +6621,51 @@ GpStatus get_graphics_transform(GpGraphics *graphics, GpCoordinateSpace dst_spac
GdipMultiplyMatrix(matrix, &inverted_transform, MatrixOrderAppend);
break;
}
case CoordinateSpacePage:
break;
case CoordinateSpaceDevice:
GdipScaleMatrix(matrix, scale_x, scale_y, MatrixOrderAppend);
break;
}
}
else
{
/* transform towards device space */
switch ((int)src_space)
{
case CoordinateSpaceWorld:
GdipMultiplyMatrix(matrix, &graphics->worldtrans, MatrixOrderAppend);
if (dst_space == CoordinateSpacePage)
break;
/* else fall-through */
case CoordinateSpacePage:
GdipScaleMatrix(matrix, scale_x, scale_y, MatrixOrderAppend);
if (dst_space == CoordinateSpaceDevice)
break;
/* else fall-through */
case CoordinateSpaceDevice:
{
GpMatrix gdixform;
get_gdi_transform(graphics, &gdixform);
GdipMultiplyMatrix(matrix, &gdixform, MatrixOrderAppend);
break;
}
}
}
}
return stat;
}
GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpPointF *points, INT count)
GpStatus gdip_transform_points(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpPointF *points, INT count)
{
GpMatrix matrix;
GpStatus stat;
stat = get_graphics_transform(graphics, dst_space, src_space, &matrix);
if (stat != Ok) return stat;
return GdipTransformMatrixPoints(&matrix, points, count);
}
GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace dst_space,
GpCoordinateSpace src_space, GpPointF *points, INT count)
{
if(!graphics || !points || count <= 0 ||
dst_space < 0 || dst_space > CoordinateSpaceDevice ||
src_space < 0 || src_space > CoordinateSpaceDevice)
@ -6618,10 +6678,7 @@ GpStatus WINGDIPAPI GdipTransformPoints(GpGraphics *graphics, GpCoordinateSpace
if (src_space == dst_space) return Ok;
stat = get_graphics_transform(graphics, dst_space, src_space, &matrix);
if (stat != Ok) return stat;
return GdipTransformMatrixPoints(&matrix, points, count);
return gdip_transform_points(graphics, dst_space, src_space, points, count);
}
GpStatus WINGDIPAPI GdipTransformPointsI(GpGraphics *graphics, GpCoordinateSpace dst_space,