diff --git a/Tests/images/drawing_emf_ref_72_144.png b/Tests/images/drawing_emf_ref_72_144.png new file mode 100644 index 000000000..000377b6c Binary files /dev/null and b/Tests/images/drawing_emf_ref_72_144.png differ diff --git a/Tests/images/imagedraw/discontiguous_corners_polygon.png b/Tests/images/imagedraw/discontiguous_corners_polygon.png index 1b58889c8..8992a1657 100644 Binary files a/Tests/images/imagedraw/discontiguous_corners_polygon.png and b/Tests/images/imagedraw/discontiguous_corners_polygon.png differ diff --git a/Tests/test_file_bmp.py b/Tests/test_file_bmp.py index 8a94011e8..757650711 100644 --- a/Tests/test_file_bmp.py +++ b/Tests/test_file_bmp.py @@ -224,3 +224,13 @@ def test_offset() -> None: # to exclude the palette size from the pixel data offset with Image.open("Tests/images/pal8_offset.bmp") as im: assert_image_equal_tofile(im, "Tests/images/bmp/g/pal8.bmp") + + +def test_use_raw_alpha(monkeypatch: pytest.MonkeyPatch) -> None: + with Image.open("Tests/images/bmp/g/rgb32.bmp") as im: + assert im.info["compression"] == BmpImagePlugin.BmpImageFile.COMPRESSIONS["RAW"] + assert im.mode == "RGB" + + monkeypatch.setattr(BmpImagePlugin, "USE_RAW_ALPHA", True) + with Image.open("Tests/images/bmp/g/rgb32.bmp") as im: + assert im.mode == "RGBA" diff --git a/Tests/test_file_libtiff.py b/Tests/test_file_libtiff.py index 25d1f5712..9e63e9c10 100644 --- a/Tests/test_file_libtiff.py +++ b/Tests/test_file_libtiff.py @@ -1026,6 +1026,17 @@ class TestFileLibTiff(LibTiffTestCase): with Image.open("Tests/images/old-style-jpeg-compression.tif") as im: assert_image_equal_tofile(im, "Tests/images/old-style-jpeg-compression.png") + def test_old_style_jpeg_orientation(self) -> None: + with open("Tests/images/old-style-jpeg-compression.tif", "rb") as fp: + data = fp.read() + + # Set EXIF Orientation to 2 + data = data[:102] + b"\x02" + data[103:] + + with Image.open(io.BytesIO(data)) as im: + im = im.transpose(Image.Transpose.FLIP_LEFT_RIGHT) + assert_image_equal_tofile(im, "Tests/images/old-style-jpeg-compression.png") + def test_open_missing_samplesperpixel(self) -> None: with Image.open( "Tests/images/old-style-jpeg-compression-no-samplesperpixel.tif" diff --git a/Tests/test_file_palm.py b/Tests/test_file_palm.py index a1859bc33..58208ba99 100644 --- a/Tests/test_file_palm.py +++ b/Tests/test_file_palm.py @@ -43,6 +43,11 @@ def roundtrip(tmp_path: Path, mode: str) -> None: im.save(outfile) converted = open_with_magick(magick, tmp_path, outfile) + if mode == "P": + assert converted.mode == "P" + + im = im.convert("RGB") + converted = converted.convert("RGB") assert_image_equal(converted, im) @@ -55,7 +60,6 @@ def test_monochrome(tmp_path: Path) -> None: roundtrip(tmp_path, mode) -@pytest.mark.xfail(reason="Palm P image is wrong") def test_p_mode(tmp_path: Path) -> None: # Arrange mode = "P" diff --git a/Tests/test_file_wmf.py b/Tests/test_file_wmf.py index 07c945848..a752f8013 100644 --- a/Tests/test_file_wmf.py +++ b/Tests/test_file_wmf.py @@ -8,7 +8,7 @@ import pytest from PIL import Image, ImageFile, WmfImagePlugin -from .helper import assert_image_similar_tofile, hopper +from .helper import assert_image_equal_tofile, assert_image_similar_tofile, hopper def test_load_raw() -> None: @@ -44,6 +44,15 @@ def test_load_zero_inch() -> None: pass +def test_render() -> None: + with open("Tests/images/drawing.emf", "rb") as fp: + data = fp.read() + b = BytesIO(data[:808] + b"\x00" + data[809:]) + with Image.open(b) as im: + if hasattr(Image.core, "drawwmf"): + assert_image_equal_tofile(im, "Tests/images/drawing.emf") + + def test_register_handler(tmp_path: Path) -> None: class TestHandler(ImageFile.StubHandler): methodCalled = False @@ -88,6 +97,20 @@ def test_load_set_dpi() -> None: assert_image_similar_tofile(im, "Tests/images/drawing_wmf_ref_144.png", 2.1) + with Image.open("Tests/images/drawing.emf") as im: + assert im.size == (1625, 1625) + + if not hasattr(Image.core, "drawwmf"): + return + im.load(im.info["dpi"]) + assert im.size == (1625, 1625) + + with Image.open("Tests/images/drawing.emf") as im: + im.load((72, 144)) + assert im.size == (82, 164) + + assert_image_equal_tofile(im, "Tests/images/drawing_emf_ref_72_144.png") + @pytest.mark.parametrize("ext", (".wmf", ".emf")) def test_save(ext: str, tmp_path: Path) -> None: diff --git a/Tests/test_imagedraw.py b/Tests/test_imagedraw.py index 2767418ea..ffe9c0979 100644 --- a/Tests/test_imagedraw.py +++ b/Tests/test_imagedraw.py @@ -1704,7 +1704,7 @@ def test_discontiguous_corners_polygon() -> None: BLACK, ) expected = os.path.join(IMAGES_PATH, "discontiguous_corners_polygon.png") - assert_image_similar_tofile(img, expected, 1) + assert_image_equal_tofile(img, expected) def test_polygon2() -> None: diff --git a/Tests/test_imagefile.py b/Tests/test_imagefile.py index c60a475a3..7622eea99 100644 --- a/Tests/test_imagefile.py +++ b/Tests/test_imagefile.py @@ -131,6 +131,26 @@ class TestImageFile: assert_image_equal(im1, im2) + def test_tile_size(self) -> None: + with open("Tests/images/hopper.tif", "rb") as im_fp: + data = im_fp.read() + + reads = [] + + class FP(BytesIO): + def read(self, size: int | None = None) -> bytes: + reads.append(size) + return super().read(size) + + fp = FP(data) + with Image.open(fp) as im: + assert len(im.tile) == 7 + + im.load() + + # Despite multiple tiles, assert only one tile caused a read of maxblock size + assert reads.count(im.decodermaxblock) == 1 + def test_raise_oserror(self) -> None: with pytest.warns(DeprecationWarning): with pytest.raises(OSError): diff --git a/docs/releasenotes/11.2.0.rst b/docs/releasenotes/11.2.0.rst index 3e977221e..d40d86f21 100644 --- a/docs/releasenotes/11.2.0.rst +++ b/docs/releasenotes/11.2.0.rst @@ -4,21 +4,12 @@ Security ======== -TODO -^^^^ +Undefined shift when loading compressed DDS images +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -TODO - -:cve:`YYYY-XXXXX`: TODO -^^^^^^^^^^^^^^^^^^^^^^^ - -TODO - -Backwards Incompatible Changes -============================== - -TODO -^^^^ +When loading some compressed DDS formats, an integer was bitshifted by 24 places to +generate the 32 bits of the lookup table. This was undefined behaviour, and has been +present since Pillow 3.4.0. Deprecations ============ @@ -36,10 +27,14 @@ an :py:class:`PIL.ImageFile.ImageFile` instance. API Changes =========== -TODO -^^^^ +``append_images`` no longer requires ``save_all`` +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -TODO +Previously, ``save_all`` was required to in order to use ``append_images``. Now, +``save_all`` will default to ``True`` if ``append_images`` is not empty and the format +supports saving multiple frames:: + + im.save("out.gif", append_images=ims) API Additions ============= @@ -73,11 +68,3 @@ Compressed DDS images can now be saved using a ``pixel_format`` argument. DXT1, DXT5, BC2, BC3 and BC5 are supported:: im.save("out.dds", pixel_format="DXT1") - -Other Changes -============= - -TODO -^^^^ - -TODO diff --git a/src/PIL/BmpImagePlugin.py b/src/PIL/BmpImagePlugin.py index d60ea591a..43131cfe2 100644 --- a/src/PIL/BmpImagePlugin.py +++ b/src/PIL/BmpImagePlugin.py @@ -48,6 +48,8 @@ BIT2MODE = { 32: ("RGB", "BGRX"), } +USE_RAW_ALPHA = False + def _accept(prefix: bytes) -> bool: return prefix.startswith(b"BM") @@ -242,7 +244,9 @@ class BmpImageFile(ImageFile.ImageFile): msg = "Unsupported BMP bitfields layout" raise OSError(msg) elif file_info["compression"] == self.COMPRESSIONS["RAW"]: - if file_info["bits"] == 32 and header == 22: # 32-bit .cur offset + if file_info["bits"] == 32 and ( + header == 22 or USE_RAW_ALPHA # 32-bit .cur offset + ): raw_mode, self._mode = "BGRA", "RGBA" elif file_info["compression"] in ( self.COMPRESSIONS["RLE8"], diff --git a/src/PIL/DcxImagePlugin.py b/src/PIL/DcxImagePlugin.py index f67f27d73..aea661b9c 100644 --- a/src/PIL/DcxImagePlugin.py +++ b/src/PIL/DcxImagePlugin.py @@ -24,6 +24,7 @@ from __future__ import annotations from . import Image from ._binary import i32le as i32 +from ._util import DeferredError from .PcxImagePlugin import PcxImageFile MAGIC = 0x3ADE68B1 # QUIZ: what's this value, then? @@ -66,6 +67,8 @@ class DcxImageFile(PcxImageFile): def seek(self, frame: int) -> None: if not self._seek_check(frame): return + if isinstance(self._fp, DeferredError): + raise self._fp.ex self.frame = frame self.fp = self._fp self.fp.seek(self._offset[frame]) diff --git a/src/PIL/FliImagePlugin.py b/src/PIL/FliImagePlugin.py index b534b30ab..7c5bfeefa 100644 --- a/src/PIL/FliImagePlugin.py +++ b/src/PIL/FliImagePlugin.py @@ -22,6 +22,7 @@ from . import Image, ImageFile, ImagePalette from ._binary import i16le as i16 from ._binary import i32le as i32 from ._binary import o8 +from ._util import DeferredError # # decoder @@ -134,6 +135,8 @@ class FliImageFile(ImageFile.ImageFile): self._seek(f) def _seek(self, frame: int) -> None: + if isinstance(self._fp, DeferredError): + raise self._fp.ex if frame == 0: self.__frame = -1 self._fp.seek(self.__rewind) diff --git a/src/PIL/GifImagePlugin.py b/src/PIL/GifImagePlugin.py index 259e93f09..045ab1027 100644 --- a/src/PIL/GifImagePlugin.py +++ b/src/PIL/GifImagePlugin.py @@ -45,6 +45,7 @@ from . import ( from ._binary import i16le as i16 from ._binary import o8 from ._binary import o16le as o16 +from ._util import DeferredError if TYPE_CHECKING: from . import _imaging @@ -167,6 +168,8 @@ class GifImageFile(ImageFile.ImageFile): raise EOFError(msg) from e def _seek(self, frame: int, update_image: bool = True) -> None: + if isinstance(self._fp, DeferredError): + raise self._fp.ex if frame == 0: # rewind self.__offset = 0 diff --git a/src/PIL/ImImagePlugin.py b/src/PIL/ImImagePlugin.py index 9f20b30f8..71b999678 100644 --- a/src/PIL/ImImagePlugin.py +++ b/src/PIL/ImImagePlugin.py @@ -31,6 +31,7 @@ import re from typing import IO, Any from . import Image, ImageFile, ImagePalette +from ._util import DeferredError # -------------------------------------------------------------------- # Standard tags @@ -290,6 +291,8 @@ class ImImageFile(ImageFile.ImageFile): def seek(self, frame: int) -> None: if not self._seek_check(frame): return + if isinstance(self._fp, DeferredError): + raise self._fp.ex self.frame = frame diff --git a/src/PIL/Image.py b/src/PIL/Image.py index 67e068b06..662afadf4 100644 --- a/src/PIL/Image.py +++ b/src/PIL/Image.py @@ -621,6 +621,8 @@ class Image: more information. """ if getattr(self, "map", None): + if sys.platform == "win32" and hasattr(sys, "pypy_version_info"): + self.map.close() self.map: mmap.mmap | None = None # Instead of simply setting to None, we're setting up a diff --git a/src/PIL/ImageFile.py b/src/PIL/ImageFile.py index 1bf8a7e5f..a7848c369 100644 --- a/src/PIL/ImageFile.py +++ b/src/PIL/ImageFile.py @@ -34,7 +34,6 @@ import itertools import logging import os import struct -import sys from typing import IO, TYPE_CHECKING, Any, NamedTuple, cast from . import ExifTags, Image @@ -167,7 +166,7 @@ class ImageFile(Image.Image): pass def _close_fp(self): - if getattr(self, "_fp", False): + if getattr(self, "_fp", False) and not isinstance(self._fp, DeferredError): if self._fp != self.fp: self._fp.close() self._fp = DeferredError(ValueError("Operation on closed image")) @@ -278,8 +277,6 @@ class ImageFile(Image.Image): self.map: mmap.mmap | None = None use_mmap = self.filename and len(self.tile) == 1 - # As of pypy 2.1.0, memory mapping was failing here. - use_mmap = use_mmap and not hasattr(sys, "pypy_version_info") readonly = 0 @@ -345,7 +342,7 @@ class ImageFile(Image.Image): self.tile, lambda tile: (tile[0], tile[1], tile[3]) ) ] - for decoder_name, extents, offset, args in self.tile: + for i, (decoder_name, extents, offset, args) in enumerate(self.tile): seek(offset) decoder = Image._getdecoder( self.mode, decoder_name, args, self.decoderconfig @@ -358,8 +355,13 @@ class ImageFile(Image.Image): else: b = prefix while True: + read_bytes = self.decodermaxblock + if i + 1 < len(self.tile): + next_offset = self.tile[i + 1].offset + if next_offset > offset: + read_bytes = next_offset - offset try: - s = read(self.decodermaxblock) + s = read(read_bytes) except (IndexError, struct.error) as e: # truncated png/gif if LOAD_TRUNCATED_IMAGES: diff --git a/src/PIL/MpoImagePlugin.py b/src/PIL/MpoImagePlugin.py index e08f80b6b..f7393eac0 100644 --- a/src/PIL/MpoImagePlugin.py +++ b/src/PIL/MpoImagePlugin.py @@ -32,6 +32,7 @@ from . import ( TiffImagePlugin, ) from ._binary import o32le +from ._util import DeferredError def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None: @@ -125,11 +126,15 @@ class MpoImageFile(JpegImagePlugin.JpegImageFile): self.readonly = 1 def load_seek(self, pos: int) -> None: + if isinstance(self._fp, DeferredError): + raise self._fp.ex self._fp.seek(pos) def seek(self, frame: int) -> None: if not self._seek_check(frame): return + if isinstance(self._fp, DeferredError): + raise self._fp.ex self.fp = self._fp self.offset = self.__mpoffsets[frame] diff --git a/src/PIL/PalmImagePlugin.py b/src/PIL/PalmImagePlugin.py index b33245376..15f712908 100644 --- a/src/PIL/PalmImagePlugin.py +++ b/src/PIL/PalmImagePlugin.py @@ -116,9 +116,6 @@ _COMPRESSION_TYPES = {"none": 0xFF, "rle": 0x01, "scanline": 0x00} def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None: if im.mode == "P": - # we assume this is a color Palm image with the standard colormap, - # unless the "info" dict has a "custom-colormap" field - rawmode = "P" bpp = 8 version = 1 @@ -172,12 +169,11 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None: compression_type = _COMPRESSION_TYPES["none"] flags = 0 - if im.mode == "P" and "custom-colormap" in im.info: - assert im.palette is not None - flags = flags & _FLAGS["custom-colormap"] - colormapsize = 4 * 256 + 2 - colormapmode = im.palette.mode - colormap = im.getdata().getpalette() + if im.mode == "P": + flags |= _FLAGS["custom-colormap"] + colormap = im.im.getpalette() + colors = len(colormap) // 3 + colormapsize = 4 * colors + 2 else: colormapsize = 0 @@ -196,22 +192,11 @@ def _save(im: Image.Image, fp: IO[bytes], filename: str | bytes) -> None: # now write colormap if necessary - if colormapsize > 0: - fp.write(o16b(256)) - for i in range(256): + if colormapsize: + fp.write(o16b(colors)) + for i in range(colors): fp.write(o8(i)) - if colormapmode == "RGB": - fp.write( - o8(colormap[3 * i]) - + o8(colormap[3 * i + 1]) - + o8(colormap[3 * i + 2]) - ) - elif colormapmode == "RGBA": - fp.write( - o8(colormap[4 * i]) - + o8(colormap[4 * i + 1]) - + o8(colormap[4 * i + 2]) - ) + fp.write(colormap[3 * i : 3 * i + 3]) # now convert data to raw form ImageFile._save( diff --git a/src/PIL/PngImagePlugin.py b/src/PIL/PngImagePlugin.py index 4fc6217e1..3e3cf6526 100644 --- a/src/PIL/PngImagePlugin.py +++ b/src/PIL/PngImagePlugin.py @@ -48,6 +48,7 @@ from ._binary import i32be as i32 from ._binary import o8 from ._binary import o16be as o16 from ._binary import o32be as o32 +from ._util import DeferredError if TYPE_CHECKING: from . import _imaging @@ -869,6 +870,8 @@ class PngImageFile(ImageFile.ImageFile): def _seek(self, frame: int, rewind: bool = False) -> None: assert self.png is not None + if isinstance(self._fp, DeferredError): + raise self._fp.ex self.dispose: _imaging.ImagingCore | None dispose_extent = None diff --git a/src/PIL/PsdImagePlugin.py b/src/PIL/PsdImagePlugin.py index 0aada8a06..f49aaeeb1 100644 --- a/src/PIL/PsdImagePlugin.py +++ b/src/PIL/PsdImagePlugin.py @@ -27,6 +27,7 @@ from ._binary import i16be as i16 from ._binary import i32be as i32 from ._binary import si16be as si16 from ._binary import si32be as si32 +from ._util import DeferredError MODES = { # (photoshop mode, bits) -> (pil mode, required channels) @@ -148,6 +149,8 @@ class PsdImageFile(ImageFile.ImageFile): ) -> list[tuple[str, str, tuple[int, int, int, int], list[ImageFile._Tile]]]: layers = [] if self._layers_position is not None: + if isinstance(self._fp, DeferredError): + raise self._fp.ex self._fp.seek(self._layers_position) _layer_data = io.BytesIO(ImageFile._safe_read(self._fp, self._layers_size)) layers = _layerinfo(_layer_data, self._layers_size) @@ -167,6 +170,8 @@ class PsdImageFile(ImageFile.ImageFile): def seek(self, layer: int) -> None: if not self._seek_check(layer): return + if isinstance(self._fp, DeferredError): + raise self._fp.ex # seek to given layer (1..max) _, mode, _, tile = self.layers[layer - 1] diff --git a/src/PIL/SpiderImagePlugin.py b/src/PIL/SpiderImagePlugin.py index b26e1a996..62fa7be03 100644 --- a/src/PIL/SpiderImagePlugin.py +++ b/src/PIL/SpiderImagePlugin.py @@ -40,6 +40,7 @@ import sys from typing import IO, TYPE_CHECKING, Any, cast from . import Image, ImageFile +from ._util import DeferredError def isInt(f: Any) -> int: @@ -178,6 +179,8 @@ class SpiderImageFile(ImageFile.ImageFile): raise EOFError(msg) if not self._seek_check(frame): return + if isinstance(self._fp, DeferredError): + raise self._fp.ex self.stkoffset = self.hdrlen + frame * (self.hdrlen + self.imgbytes) self.fp = self._fp self.fp.seek(self.stkoffset) diff --git a/src/PIL/TiffImagePlugin.py b/src/PIL/TiffImagePlugin.py index 39783f1f8..ebe599cca 100644 --- a/src/PIL/TiffImagePlugin.py +++ b/src/PIL/TiffImagePlugin.py @@ -58,7 +58,7 @@ from ._binary import i32be as i32 from ._binary import o8 from ._deprecate import deprecate from ._typing import StrOrBytesPath -from ._util import is_path +from ._util import DeferredError, is_path from .TiffTags import TYPES if TYPE_CHECKING: @@ -1222,6 +1222,8 @@ class TiffImageFile(ImageFile.ImageFile): self._im = None def _seek(self, frame: int) -> None: + if isinstance(self._fp, DeferredError): + raise self._fp.ex self.fp = self._fp while len(self._frame_pos) <= frame: diff --git a/src/PIL/WmfImagePlugin.py b/src/PIL/WmfImagePlugin.py index 04abd52f0..f709d026b 100644 --- a/src/PIL/WmfImagePlugin.py +++ b/src/PIL/WmfImagePlugin.py @@ -80,8 +80,6 @@ class WmfStubImageFile(ImageFile.StubImageFile): format_description = "Windows Metafile" def _open(self) -> None: - self._inch = None - # check placable header s = self.fp.read(80) @@ -89,10 +87,11 @@ class WmfStubImageFile(ImageFile.StubImageFile): # placeable windows metafile # get units per inch - self._inch = word(s, 14) - if self._inch == 0: + inch = word(s, 14) + if inch == 0: msg = "Invalid inch" raise ValueError(msg) + self._inch: tuple[float, float] = inch, inch # get bounding box x0 = short(s, 6) @@ -103,8 +102,8 @@ class WmfStubImageFile(ImageFile.StubImageFile): # normalize size to 72 dots per inch self.info["dpi"] = 72 size = ( - (x1 - x0) * self.info["dpi"] // self._inch, - (y1 - y0) * self.info["dpi"] // self._inch, + (x1 - x0) * self.info["dpi"] // inch, + (y1 - y0) * self.info["dpi"] // inch, ) self.info["wmf_bbox"] = x0, y0, x1, y1 @@ -138,6 +137,7 @@ class WmfStubImageFile(ImageFile.StubImageFile): self.info["dpi"] = xdpi else: self.info["dpi"] = xdpi, ydpi + self._inch = xdpi, ydpi else: msg = "Unsupported file format" @@ -153,13 +153,17 @@ class WmfStubImageFile(ImageFile.StubImageFile): def _load(self) -> ImageFile.StubHandler | None: return _handler - def load(self, dpi: int | None = None) -> Image.core.PixelAccess | None: - if dpi is not None and self._inch is not None: + def load( + self, dpi: float | tuple[float, float] | None = None + ) -> Image.core.PixelAccess | None: + if dpi is not None: self.info["dpi"] = dpi x0, y0, x1, y1 = self.info["wmf_bbox"] + if not isinstance(dpi, tuple): + dpi = dpi, dpi self._size = ( - (x1 - x0) * self.info["dpi"] // self._inch, - (y1 - y0) * self.info["dpi"] // self._inch, + int((x1 - x0) * dpi[0] / self._inch[0]), + int((y1 - y0) * dpi[1] / self._inch[1]), ) return super().load() diff --git a/src/display.c b/src/display.c index a05387504..ac2134a57 100644 --- a/src/display.c +++ b/src/display.c @@ -687,6 +687,14 @@ PyImaging_EventLoopWin32(PyObject *self, PyObject *args) { #define GET32(p, o) ((DWORD *)(p + o))[0] +static int CALLBACK +enhMetaFileProc( + HDC hdc, HANDLETABLE *lpht, const ENHMETARECORD *lpmr, int nHandles, LPARAM data +) { + PlayEnhMetaFileRecord(hdc, lpht, lpmr, nHandles); + return 1; +} + PyObject * PyImaging_DrawWmf(PyObject *self, PyObject *args) { HBITMAP bitmap; @@ -767,10 +775,7 @@ PyImaging_DrawWmf(PyObject *self, PyObject *args) { /* FIXME: make background transparent? configurable? */ FillRect(dc, &rect, GetStockObject(WHITE_BRUSH)); - if (!PlayEnhMetaFile(dc, meta, &rect)) { - PyErr_SetString(PyExc_OSError, "cannot render metafile"); - goto error; - } + EnumEnhMetaFile(dc, meta, enhMetaFileProc, NULL, &rect); /* step 4: extract bits from bitmap */ diff --git a/src/libImaging/Draw.c b/src/libImaging/Draw.c index ea6f8805e..d5aff8709 100644 --- a/src/libImaging/Draw.c +++ b/src/libImaging/Draw.c @@ -501,55 +501,49 @@ polygon_generic( // Needed to draw consistent polygons xx[j] = xx[j - 1]; j++; - } else if (current->dx != 0 && j % 2 == 1 && - roundf(xx[j - 1]) == xx[j - 1]) { + } else if ((ymin == current->ymin || ymin == current->ymax) && + current->dx != 0) { // Connect discontiguous corners for (k = 0; k < i; k++) { Edge *other_edge = edge_table[k]; - if ((current->dx > 0 && other_edge->dx <= 0) || - (current->dx < 0 && other_edge->dx >= 0)) { + if ((ymin != other_edge->ymin && ymin != other_edge->ymax) || + other_edge->dx == 0) { continue; } // Check if the two edges join to make a corner - if (xx[j - 1] == - (ymin - other_edge->y0) * other_edge->dx + other_edge->x0) { + if (roundf(xx[j - 1]) == + roundf( + (ymin - other_edge->y0) * other_edge->dx + + other_edge->x0 + )) { // Determine points from the edges on the next row // Or if this is the last row, check the previous row - int offset = ymin == ymax ? -1 : 1; + int offset = ymin == current->ymax ? -1 : 1; adjacent_line_x = (ymin + offset - current->y0) * current->dx + current->x0; - adjacent_line_x_other_edge = - (ymin + offset - other_edge->y0) * other_edge->dx + - other_edge->x0; - if (ymin == current->ymax) { - if (current->dx > 0) { - xx[k] = - fmax( + if (ymin + offset >= other_edge->ymin && + ymin + offset <= other_edge->ymax) { + adjacent_line_x_other_edge = + (ymin + offset - other_edge->y0) * other_edge->dx + + other_edge->x0; + if (xx[j - 1] > adjacent_line_x + 1 && + xx[j - 1] > adjacent_line_x_other_edge + 1) { + xx[j - 1] = + roundf(fmax( adjacent_line_x, adjacent_line_x_other_edge - ) + + )) + 1; - } else { - xx[k] = - fmin( + } else if (xx[j - 1] < adjacent_line_x - 1 && + xx[j - 1] < adjacent_line_x_other_edge - 1) { + xx[j - 1] = + roundf(fmin( adjacent_line_x, adjacent_line_x_other_edge - ) - - 1; - } - } else { - if (current->dx > 0) { - xx[k] = fmin( - adjacent_line_x, adjacent_line_x_other_edge - ); - } else { - xx[k] = - fmax( - adjacent_line_x, adjacent_line_x_other_edge - ) + + )) - 1; } + break; } - break; } } } diff --git a/src/libImaging/TiffDecode.c b/src/libImaging/TiffDecode.c index e4da9162d..9a2db95b4 100644 --- a/src/libImaging/TiffDecode.c +++ b/src/libImaging/TiffDecode.c @@ -299,6 +299,7 @@ _decodeAsRGBA(Imaging im, ImagingCodecState state, TIFF *tiff) { return -1; } + img.orientation = ORIENTATION_TOPLEFT; img.req_orientation = ORIENTATION_TOPLEFT; img.col_offset = 0;