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gdiplus/metafile: Implement EmfPlusRegion deserialization.
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Vincent Povirk <vincent@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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363d24d458
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@ -396,6 +396,7 @@ struct emfplus_object {
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GpBrush *brush;
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GpPen *pen;
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GpPath *path;
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GpRegion *region;
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GpImage *image;
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GpFont *font;
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GpImageAttributes *image_attributes;
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@ -561,6 +562,30 @@ struct GpRegion{
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region_element node;
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};
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struct memory_buffer
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{
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const BYTE *buffer;
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INT size, pos;
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};
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static inline void init_memory_buffer(struct memory_buffer *mbuf, const BYTE *buffer, INT size)
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{
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mbuf->buffer = buffer;
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mbuf->size = size;
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mbuf->pos = 0;
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}
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static inline const void *buffer_read(struct memory_buffer *mbuf, INT size)
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{
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if (mbuf->size - mbuf->pos >= size)
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{
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const void *data = mbuf->buffer + mbuf->pos;
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mbuf->pos += size;
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return data;
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}
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return NULL;
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}
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typedef GpStatus (*gdip_format_string_callback)(HDC hdc,
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GDIPCONST WCHAR *string, INT index, INT length, GDIPCONST GpFont *font,
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GDIPCONST RectF *rect, GDIPCONST GpStringFormat *format,
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@ -265,6 +265,12 @@ typedef struct EmfPlusPath
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BYTE data[1];
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} EmfPlusPath;
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typedef struct EmfPlusRegionNodePath
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{
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DWORD RegionNodePathLength;
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EmfPlusPath RegionNodePath;
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} EmfPlusRegionNodePath;
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typedef struct EmfPlusRegion
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{
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DWORD Version;
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@ -429,6 +435,9 @@ static void metafile_free_object_table_entry(GpMetafile *metafile, BYTE id)
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case ObjectTypePath:
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GdipDeletePath(object->u.path);
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break;
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case ObjectTypeRegion:
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GdipDeleteRegion(object->u.region);
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break;
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case ObjectTypeImage:
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GdipDisposeImage(object->u.image);
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break;
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@ -1685,6 +1694,132 @@ static GpStatus metafile_deserialize_path(const BYTE *record_data, UINT data_siz
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return Ok;
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}
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static GpStatus metafile_read_region_node(struct memory_buffer *mbuf, GpRegion *region, region_element *node, UINT *count)
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{
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const DWORD *type;
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GpStatus status;
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type = buffer_read(mbuf, sizeof(*type));
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if (!type) return Ok;
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node->type = *type;
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switch (node->type)
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{
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case CombineModeReplace:
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case CombineModeIntersect:
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case CombineModeUnion:
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case CombineModeXor:
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case CombineModeExclude:
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case CombineModeComplement:
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{
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region_element *left, *right;
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left = heap_alloc_zero(sizeof(*left));
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if (!left)
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return OutOfMemory;
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right = heap_alloc_zero(sizeof(*right));
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if (!right)
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{
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heap_free(left);
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return OutOfMemory;
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}
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status = metafile_read_region_node(mbuf, region, left, count);
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if (status == Ok)
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{
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status = metafile_read_region_node(mbuf, region, right, count);
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if (status == Ok)
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{
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node->elementdata.combine.left = left;
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node->elementdata.combine.right = right;
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region->num_children += 2;
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return Ok;
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}
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}
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heap_free(left);
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heap_free(right);
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return status;
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}
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case RegionDataRect:
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{
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const EmfPlusRectF *rect;
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rect = buffer_read(mbuf, sizeof(*rect));
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if (!rect)
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return InvalidParameter;
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memcpy(&node->elementdata.rect, rect, sizeof(*rect));
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*count += 1;
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return Ok;
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}
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case RegionDataPath:
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{
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const BYTE *path_data;
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const UINT *data_size;
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GpPath *path;
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data_size = buffer_read(mbuf, FIELD_OFFSET(EmfPlusRegionNodePath, RegionNodePath));
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if (!data_size)
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return InvalidParameter;
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path_data = buffer_read(mbuf, *data_size);
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if (!path_data)
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return InvalidParameter;
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status = metafile_deserialize_path(path_data, *data_size, &path);
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if (status == Ok)
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{
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node->elementdata.path = path;
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*count += 1;
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}
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return Ok;
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}
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case RegionDataEmptyRect:
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case RegionDataInfiniteRect:
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*count += 1;
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return Ok;
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default:
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FIXME("element type %#x is not supported\n", *type);
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break;
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}
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return InvalidParameter;
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}
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static GpStatus metafile_deserialize_region(const BYTE *record_data, UINT data_size, GpRegion **region)
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{
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struct memory_buffer mbuf;
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GpStatus status;
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UINT count;
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*region = NULL;
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init_memory_buffer(&mbuf, record_data, data_size);
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if (!buffer_read(&mbuf, FIELD_OFFSET(EmfPlusRegion, RegionNode)))
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return InvalidParameter;
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status = GdipCreateRegion(region);
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if (status != Ok)
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return status;
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count = 0;
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status = metafile_read_region_node(&mbuf, *region, &(*region)->node, &count);
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if (status == Ok && !count)
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status = InvalidParameter;
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if (status != Ok)
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{
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GdipDeleteRegion(*region);
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*region = NULL;
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}
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return status;
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}
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static GpStatus metafile_deserialize_brush(const BYTE *record_data, UINT data_size, GpBrush **brush)
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{
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static const UINT header_size = FIELD_OFFSET(EmfPlusBrush, BrushData);
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@ -1935,6 +2070,9 @@ static GpStatus METAFILE_PlaybackObject(GpMetafile *metafile, UINT flags, UINT d
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case ObjectTypePath:
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status = metafile_deserialize_path(record_data, data_size, (GpPath **)&object);
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break;
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case ObjectTypeRegion:
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status = metafile_deserialize_region(record_data, data_size, (GpRegion **)&object);
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break;
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case ObjectTypeImage:
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status = metafile_deserialize_image(record_data, data_size, (GpImage **)&object);
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break;
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@ -76,12 +76,6 @@ WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
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#define FLAGS_INTPATH 0x4000
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struct memory_buffer
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{
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const BYTE *buffer;
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INT size, pos;
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};
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struct region_header
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{
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DWORD magic;
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@ -778,24 +772,6 @@ GpStatus WINGDIPAPI GdipGetRegionData(GpRegion *region, BYTE *buffer, UINT size,
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return Ok;
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}
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static inline void init_memory_buffer(struct memory_buffer *mbuf, const BYTE *buffer, INT size)
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{
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mbuf->buffer = buffer;
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mbuf->size = size;
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mbuf->pos = 0;
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}
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static inline const void *buffer_read(struct memory_buffer *mbuf, INT size)
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{
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if (mbuf->size - mbuf->pos >= size)
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{
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const void *data = mbuf->buffer + mbuf->pos;
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mbuf->pos += size;
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return data;
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}
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return NULL;
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}
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static GpStatus read_element(struct memory_buffer *mbuf, GpRegion *region, region_element *node, INT *count)
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{
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GpStatus status;
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@ -2170,7 +2170,7 @@ static const emfplus_record clipping_records[] = {
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{ EmfPlusRecordTypeRestore },
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{ EmfPlusRecordTypeSetClipRect, 0x300 },
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{ EmfPlusRecordTypeFillRects, 0xc000 },
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{ EmfPlusRecordTypeObject, ObjectTypeRegion << 8, 0, 1 },
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{ EmfPlusRecordTypeObject, ObjectTypeRegion << 8 },
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{ EmfPlusRecordTypeSetClipRegion, 0x100, 0, 1 },
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{ EmfPlusRecordTypeEndOfFile },
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{ EMR_EOF },
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