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python: expose the CompressedPixelFormat enum. 

And related Trade::ImageData APIs.
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Vladimír Vondruš 3 years ago
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6 changed files with 130 additions and 3 deletions
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  1. 7
      doc/python/magnum.trade.rst
  2. 1
      doc/python/pages/changelog.rst
  3. 1
      src/python/magnum/__init__.py
  4. 108
      src/python/magnum/magnum.cpp
  5. 8
      src/python/magnum/test/test_trade.py
  6. 8
      src/python/magnum/trade.cpp

7
doc/python/magnum.trade.rst
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@ -81,6 +81,13 @@
.. py:property:: magnum.trade.ImageData3D.format
:raise AttributeError: If :ref:`is_compressed` is :py:`True`
.. py:property:: magnum.trade.ImageData1D.compressed_format
:raise AttributeError: If :ref:`is_compressed` is :py:`False`
.. py:property:: magnum.trade.ImageData2D.compressed_format
:raise AttributeError: If :ref:`is_compressed` is :py:`False`
.. py:property:: magnum.trade.ImageData3D.compressed_format
:raise AttributeError: If :ref:`is_compressed` is :py:`False`
.. py:property:: magnum.trade.ImageData1D.pixel_size
:raise AttributeError: If :ref:`is_compressed` is :py:`True`
.. py:property:: magnum.trade.ImageData2D.pixel_size

1
doc/python/pages/changelog.rst
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@ -55,6 +55,7 @@ Changelog
:ref:`Matrix3.projection()`
- Exposed remaining vector/scalar, exponential and other functions in the
:ref:`math <magnum.math>` library
- Exposed the :ref:`CompressedPixelFormat` enum
- Exposed :ref:`Color3.from_xyz()`, :ref:`Color3.from_linear_rgb_int()`,
:ref:`Color3.to_xyz()`, :ref:`Color3.to_linear_rgb_int()` and equivalent
APIs on :ref:`Color4`

1
src/python/magnum/__init__.py
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@ -78,6 +78,7 @@ __all__ = [
'MeshPrimitive', 'MeshIndexType',
'PixelFormat', 'PixelStorage',
'CompressedPixelFormat',
'Image1D', 'Image2D', 'Image3D',
'ImageView1D', 'ImageView2D', 'ImageView3D',
'MutableImageView1D', 'MutableImageView2D', 'MutableImageView3D',

108
src/python/magnum/magnum.cpp
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@ -304,6 +304,114 @@ void magnum(py::module_& m) {
.value("DEPTH24_UNORM_STENCIL8UI", PixelFormat::Depth24UnormStencil8UI)
.value("DEPTH32F_STENCIL8UI", PixelFormat::Depth32FStencil8UI);
py::enum_<CompressedPixelFormat>{m, "CompressedPixelFormat", "Format of compressed pixel data"}
.value("BC1_RGB_UNORM", CompressedPixelFormat::Bc1RGBUnorm)
.value("BC1_RGB_SRGB", CompressedPixelFormat::Bc1RGBSrgb)
.value("BC1_RGBA_UNORM", CompressedPixelFormat::Bc1RGBAUnorm)
.value("BC1_RGBA_SRGB", CompressedPixelFormat::Bc1RGBASrgb)
.value("BC2_RGBA_UNORM", CompressedPixelFormat::Bc2RGBAUnorm)
.value("BC2_RGBA_SRGB", CompressedPixelFormat::Bc2RGBASrgb)
.value("BC3_RGBA_UNORM", CompressedPixelFormat::Bc3RGBAUnorm)
.value("BC3_RGBA_SRGB", CompressedPixelFormat::Bc3RGBASrgb)
.value("BC4_R_UNORM", CompressedPixelFormat::Bc4RUnorm)
.value("BC4_R_SNORM", CompressedPixelFormat::Bc4RSnorm)
.value("BC5_RG_UNORM", CompressedPixelFormat::Bc5RGUnorm)
.value("BC5_RG_SNORM", CompressedPixelFormat::Bc5RGSnorm)
.value("BC6H_RGB_UFLOAT", CompressedPixelFormat::Bc6hRGBUfloat)
.value("BC6H_RGB_SFLOAT", CompressedPixelFormat::Bc6hRGBSfloat)
.value("BC7_RGBA_UNORM", CompressedPixelFormat::Bc7RGBAUnorm)
.value("BC7_RGBA_SRGB", CompressedPixelFormat::Bc7RGBASrgb)
.value("EAC_R11_UNORM", CompressedPixelFormat::EacR11Unorm)
.value("EAC_R11_SNORM", CompressedPixelFormat::EacR11Snorm)
.value("EAC_RG11_UNORM", CompressedPixelFormat::EacRG11Unorm)
.value("EAC_RG11_SNORM", CompressedPixelFormat::EacRG11Snorm)
.value("ETC2_RGB8_UNORM", CompressedPixelFormat::Etc2RGB8Unorm)
.value("ETC2_RGB8_SRGB", CompressedPixelFormat::Etc2RGB8Srgb)
.value("ETC2_RGB8A1_UNORM", CompressedPixelFormat::Etc2RGB8A1Unorm)
.value("ETC2_RGB8A1_SRGB", CompressedPixelFormat::Etc2RGB8A1Srgb)
.value("ETC2_RGBA8_UNORM", CompressedPixelFormat::Etc2RGBA8Unorm)
.value("ETC2_RGBA8_SRGB", CompressedPixelFormat::Etc2RGBA8Srgb)
.value("ASTC_4X4_RGBA_UNORM", CompressedPixelFormat::Astc4x4RGBAUnorm)
.value("ASTC_4X4_RGBA_SRGB", CompressedPixelFormat::Astc4x4RGBASrgb)
.value("ASTC_4X4_RGBAF", CompressedPixelFormat::Astc4x4RGBAF)
.value("ASTC_5X4_RGBA_UNORM", CompressedPixelFormat::Astc5x4RGBAUnorm)
.value("ASTC_5X4_RGBA_SRGB", CompressedPixelFormat::Astc5x4RGBASrgb)
.value("ASTC_5X4_RGBAF", CompressedPixelFormat::Astc5x4RGBAF)
.value("ASTC_5X5_RGBA_UNORM", CompressedPixelFormat::Astc5x5RGBAUnorm)
.value("ASTC_5X5_RGBA_SRGB", CompressedPixelFormat::Astc5x5RGBASrgb)
.value("ASTC_5X5_RGBAF", CompressedPixelFormat::Astc5x5RGBAF)
.value("ASTC_6X5_RGBA_UNORM", CompressedPixelFormat::Astc6x5RGBAUnorm)
.value("ASTC_6X5_RGBA_SRGB", CompressedPixelFormat::Astc6x5RGBASrgb)
.value("ASTC_6X5_RGBAF", CompressedPixelFormat::Astc6x5RGBAF)
.value("ASTC_6X6_RGBA_UNORM", CompressedPixelFormat::Astc6x6RGBAUnorm)
.value("ASTC_6X6_RGBA_SRGB", CompressedPixelFormat::Astc6x6RGBASrgb)
.value("ASTC_6X6_RGBAF", CompressedPixelFormat::Astc6x6RGBAF)
.value("ASTC_8X5_RGBA_UNORM", CompressedPixelFormat::Astc8x5RGBAUnorm)
.value("ASTC_8X5_RGBA_SRGB", CompressedPixelFormat::Astc8x5RGBASrgb)
.value("ASTC_8X5_RGBAF", CompressedPixelFormat::Astc8x5RGBAF)
.value("ASTC_8X6_RGBA_UNORM", CompressedPixelFormat::Astc8x6RGBAUnorm)
.value("ASTC_8X6_RGBA_SRGB", CompressedPixelFormat::Astc8x6RGBASrgb)
.value("ASTC_8X6_RGBAF", CompressedPixelFormat::Astc8x6RGBAF)
.value("ASTC_8X8_RGBA_UNORM", CompressedPixelFormat::Astc8x8RGBAUnorm)
.value("ASTC_8X8_RGBA_SRGB", CompressedPixelFormat::Astc8x8RGBASrgb)
.value("ASTC_8X8_RGBAF", CompressedPixelFormat::Astc8x8RGBAF)
.value("ASTC_10X5_RGBA_UNORM", CompressedPixelFormat::Astc10x5RGBAUnorm)
.value("ASTC_10X5_RGBA_SRGB", CompressedPixelFormat::Astc10x5RGBASrgb)
.value("ASTC_10X5_RGBAF", CompressedPixelFormat::Astc10x5RGBAF)
.value("ASTC_10X6_RGBA_UNORM", CompressedPixelFormat::Astc10x6RGBAUnorm)
.value("ASTC_10X6_RGBA_SRGB", CompressedPixelFormat::Astc10x6RGBASrgb)
.value("ASTC_10X6_RGBAF", CompressedPixelFormat::Astc10x6RGBAF)
.value("ASTC_10X8_RGBA_UNORM", CompressedPixelFormat::Astc10x8RGBAUnorm)
.value("ASTC_10X8_RGBA_SRGB", CompressedPixelFormat::Astc10x8RGBASrgb)
.value("ASTC_10X8_RGBAF", CompressedPixelFormat::Astc10x8RGBAF)
.value("ASTC_10X10_RGBA_UNORM", CompressedPixelFormat::Astc10x10RGBAUnorm)
.value("ASTC_10X10_RGBA_SRGB", CompressedPixelFormat::Astc10x10RGBASrgb)
.value("ASTC_10X10_RGBAF", CompressedPixelFormat::Astc10x10RGBAF)
.value("ASTC_12X10_RGBA_UNORM", CompressedPixelFormat::Astc12x10RGBAUnorm)
.value("ASTC_12X10_RGBA_SRGB", CompressedPixelFormat::Astc12x10RGBASrgb)
.value("ASTC_12X10_RGBAF", CompressedPixelFormat::Astc12x10RGBAF)
.value("ASTC_12X12_RGBA_UNORM", CompressedPixelFormat::Astc12x12RGBAUnorm)
.value("ASTC_12X12_RGBA_SRGB", CompressedPixelFormat::Astc12x12RGBASrgb)
.value("ASTC_12X12_RGBAF", CompressedPixelFormat::Astc12x12RGBAF)
.value("ASTC_3X3X3_RGBA_UNORM", CompressedPixelFormat::Astc3x3x3RGBAUnorm)
.value("ASTC_3X3X3_RGBA_SRGB", CompressedPixelFormat::Astc3x3x3RGBASrgb)
.value("ASTC_3X3X3_RGBAF", CompressedPixelFormat::Astc3x3x3RGBAF)
.value("ASTC_4X3X3_RGBA_UNORM", CompressedPixelFormat::Astc4x3x3RGBAUnorm)
.value("ASTC_4X3X3_RGBA_SRGB", CompressedPixelFormat::Astc4x3x3RGBASrgb)
.value("ASTC_4X3X3_RGBAF", CompressedPixelFormat::Astc4x3x3RGBAF)
.value("ASTC_4X4X3_RGBA_UNORM", CompressedPixelFormat::Astc4x4x3RGBAUnorm)
.value("ASTC_4X4X3_RGBA_SRGB", CompressedPixelFormat::Astc4x4x3RGBASrgb)
.value("ASTC_4X4X3_RGBAF", CompressedPixelFormat::Astc4x4x3RGBAF)
.value("ASTC_4X4X4_RGBA_UNORM", CompressedPixelFormat::Astc4x4x4RGBAUnorm)
.value("ASTC_4X4X4_RGBA_SRGB", CompressedPixelFormat::Astc4x4x4RGBASrgb)
.value("ASTC_4X4X4_RGBAF", CompressedPixelFormat::Astc4x4x4RGBAF)
.value("ASTC_5X4X4_RGBA_UNORM", CompressedPixelFormat::Astc5x4x4RGBAUnorm)
.value("ASTC_5X4X4_RGBA_SRGB", CompressedPixelFormat::Astc5x4x4RGBASrgb)
.value("ASTC_5X4X4_RGBAF", CompressedPixelFormat::Astc5x4x4RGBAF)
.value("ASTC_5X5X4_RGBA_UNORM", CompressedPixelFormat::Astc5x5x4RGBAUnorm)
.value("ASTC_5X5X4_RGBA_SRGB", CompressedPixelFormat::Astc5x5x4RGBASrgb)
.value("ASTC_5X5X4_RGBAF", CompressedPixelFormat::Astc5x5x4RGBAF)
.value("ASTC_5X5X5_RGBA_UNORM", CompressedPixelFormat::Astc5x5x5RGBAUnorm)
.value("ASTC_5X5X5_RGBA_SRGB", CompressedPixelFormat::Astc5x5x5RGBASrgb)
.value("ASTC_5X5X5_RGBAF", CompressedPixelFormat::Astc5x5x5RGBAF)
.value("ASTC_6X5X5_RGBA_UNORM", CompressedPixelFormat::Astc6x5x5RGBAUnorm)
.value("ASTC_6X5X5_RGBA_SRGB", CompressedPixelFormat::Astc6x5x5RGBASrgb)
.value("ASTC_6X5X5_RGBAF", CompressedPixelFormat::Astc6x5x5RGBAF)
.value("ASTC_6X6X5_RGBA_UNORM", CompressedPixelFormat::Astc6x6x5RGBAUnorm)
.value("ASTC_6X6X5_RGBA_SRGB", CompressedPixelFormat::Astc6x6x5RGBASrgb)
.value("ASTC_6X6X5_RGBAF", CompressedPixelFormat::Astc6x6x5RGBAF)
.value("ASTC_6X6X6_RGBA_UNORM", CompressedPixelFormat::Astc6x6x6RGBAUnorm)
.value("ASTC_6X6X6_RGBA_SRGB", CompressedPixelFormat::Astc6x6x6RGBASrgb)
.value("ASTC_6X6X6_RGBAF", CompressedPixelFormat::Astc6x6x6RGBAF)
.value("PVRTC_RGB_2PP_UNORM", CompressedPixelFormat::PvrtcRGB2bppUnorm)
.value("PVRTC_RGB_2PP_SRGB", CompressedPixelFormat::PvrtcRGB2bppSrgb)
.value("PVRTC_RGBA_2PP_UNORM", CompressedPixelFormat::PvrtcRGBA2bppUnorm)
.value("PVRTC_RGBA_2PP_SRGB", CompressedPixelFormat::PvrtcRGBA2bppSrgb)
.value("PVRTC_RGB_4PP_UNORM", CompressedPixelFormat::PvrtcRGB4bppUnorm)
.value("PVRTC_RGB_4PP_SRGB", CompressedPixelFormat::PvrtcRGB4bppSrgb)
.value("PVRTC_RGBA_4PP_UNORM", CompressedPixelFormat::PvrtcRGBA4bppUnorm)
.value("PVRTC_RGBA_4PP_SRGB", CompressedPixelFormat::PvrtcRGBA4bppSrgb);
py::class_<PixelStorage>{m, "PixelStorage", "Pixel storage parameters"}
.def(py::init(), "Default constructor")

8
src/python/magnum/test/test_trade.py
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@ -48,6 +48,9 @@ class ImageData(unittest.TestCase):
self.assertEqual(image.size, Vector2i(3, 2))
self.assertIsNone(image.owner)
with self.assertRaisesRegex(AttributeError, "image is not compressed"):
image.compressed_format
def test_compressed(self):
# The only way to get an image instance is through a manager
importer = trade.ImporterManager().load_and_instantiate('DdsImporter')
@ -55,10 +58,9 @@ class ImageData(unittest.TestCase):
image = importer.image2d(0)
self.assertEqual(len(image.data), 8)
self.assertTrue(image.is_compressed)
# TODO: compressed properties
self.assertEqual(image.compressed_format, CompressedPixelFormat.BC1_RGBA_UNORM)
# TODO: remaining compressed properties
# No compressed-image-related APIs exposed ATM, so just verifying the
# uncompressed ones fail properly
with self.assertRaisesRegex(AttributeError, "image is compressed"):
image.storage
with self.assertRaisesRegex(AttributeError, "image is compressed"):

8
src/python/magnum/trade.cpp
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@ -246,6 +246,14 @@ template<UnsignedInt dimensions> void imageData(py::class_<Trade::ImageData<dime
return self.format();
}, "Format of pixel data")
.def_property_readonly("compressed_format", [](Trade::ImageData<dimensions>& self) {
if(!self.isCompressed()) {
PyErr_SetString(PyExc_AttributeError, "image is not compressed");
throw py::error_already_set{};
}
return self.compressedFormat();
}, "Format of compressed pixel data")
.def_property_readonly("pixel_size", [](Trade::ImageData<dimensions>& self) {
if(self.isCompressed()) {
PyErr_SetString(PyExc_AttributeError, "image is compressed");

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