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gdiplus: Add DrawDriverString record deserialization.

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Signed-off-by: Shawn M. Chapla <schapla@codeweavers.com>
Signed-off-by: Esme Povirk <esme@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Shawn M. Chapla 2020-07-13 15:17:00 -04:00 committed by Alexandre Julliard
parent 4e56d3e650
commit 30c7fe69e0
1 changed files with 99 additions and 0 deletions
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99
dlls/gdiplus/metafile.c
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@ -548,6 +548,20 @@ typedef struct EmfPlusFont
WCHAR FamilyName[1];
} EmfPlusFont;
typedef struct EmfPlusDrawDriverString
{
EmfPlusRecordHeader Header;
union
{
DWORD BrushId;
ARGB Color;
} brush;
DWORD DriverStringOptionsFlags;
DWORD MatrixPresent;
DWORD GlyphCount;
BYTE VariableData[1];
} EmfPlusDrawDriverString;
static void metafile_free_object_table_entry(GpMetafile *metafile, BYTE id)
{
struct emfplus_object *object = &metafile->objtable[id];
@ -3333,6 +3347,91 @@ GpStatus WINGDIPAPI GdipPlayMetafileRecord(GDIPCONST GpMetafile *metafile,
GdipFree(rects);
return stat;
}
case EmfPlusRecordTypeDrawDriverString:
{
GpBrush *brush;
DWORD expected_size;
UINT16 *text;
PointF *positions;
GpSolidFill *solidfill = NULL;
void* alignedmem = NULL;
GpMatrix *matrix = NULL;
BYTE font = flags & 0xff;
EmfPlusDrawDriverString *draw = (EmfPlusDrawDriverString*)header;
if (font >= EmfPlusObjectTableSize ||
real_metafile->objtable[font].type != ObjectTypeFont)
return InvalidParameter;
expected_size = FIELD_OFFSET(EmfPlusDrawDriverString, VariableData) -
sizeof(EmfPlusRecordHeader);
if (dataSize < expected_size || draw->GlyphCount <= 0)
return InvalidParameter;
expected_size += draw->GlyphCount * (sizeof(*text) + sizeof(*positions));
if (draw->MatrixPresent)
expected_size += sizeof(*matrix);
/* Pad expected size to DWORD alignment. */
expected_size = (expected_size + 3) & ~3;
if (dataSize != expected_size)
return InvalidParameter;
if (flags & 0x8000)
{
stat = GdipCreateSolidFill(draw->brush.Color, (GpSolidFill**)&solidfill);
if (stat != Ok)
return InvalidParameter;
brush = (GpBrush*)solidfill;
}
else
{
if (draw->brush.BrushId >= EmfPlusObjectTableSize ||
real_metafile->objtable[draw->brush.BrushId].type != ObjectTypeBrush)
return InvalidParameter;
brush = real_metafile->objtable[draw->brush.BrushId].u.brush;
}
text = (UINT16*)&draw->VariableData[0];
/* If GlyphCount is odd, all subsequent fields will be 2-byte
aligned rather than 4-byte aligned, which may lead to access
issues. Handle this case by making our own copy of positions. */
if (draw->GlyphCount % 2)
{
SIZE_T alloc_size = draw->GlyphCount * sizeof(*positions);
if (draw->MatrixPresent)
alloc_size += sizeof(*matrix);
positions = alignedmem = heap_alloc(alloc_size);
if (!positions)
{
GdipDeleteBrush((GpBrush*)solidfill);
return OutOfMemory;
}
memcpy(positions, &text[draw->GlyphCount], alloc_size);
}
else
positions = (PointF*)&text[draw->GlyphCount];
if (draw->MatrixPresent)
matrix = (GpMatrix*)&positions[draw->GlyphCount];
stat = GdipDrawDriverString(real_metafile->playback_graphics, text, draw->GlyphCount,
real_metafile->objtable[font].u.font, brush, positions,
draw->DriverStringOptionsFlags, matrix);
GdipDeleteBrush((GpBrush*)solidfill);
heap_free(alignedmem);
return stat;
}
default:
FIXME("Not implemented for record type %x\n", recordType);
return NotImplemented;