Add ktx

2026-06-14 19:09:18 +01:00
parent 14bd1a9271
commit 13fa90a0e9
3958 changed files with 999286 additions and 4 deletions
@@ -0,0 +1,60 @@
+# Copyright (c) 2023, Shukant Pal and Contributors
+# SPDX-License-Identifier: Apache-2.0
+
+from pyktx import *
+from tempfile import NamedTemporaryFile
+from test_config import __test_images__
+import os
+import unittest
+
+
+class TestKtxTexture1(unittest.TestCase):
+    def test_create_from_named_file(self):
+        test_ktx_file = os.path.join(__test_images__, 'etc1.ktx')
+        texture = KtxTexture1.create_from_named_file(test_ktx_file)
+
+        self.assertEqual(texture.gl_internalformat, GlInternalformat.ETC1_RGB8_OES)
+        self.assertFalse(texture.is_array)
+        self.assertFalse(texture.generate_mipmaps)
+        self.assertEqual(texture.num_levels, 1)
+
+    def test_write_to_named_file(self):
+        test_ktx_file = os.path.join(__test_images__, 'etc2-rgb.ktx')
+        copy_file = NamedTemporaryFile(delete=False)
+        copy_file.close()
+
+        texture = KtxTexture1.create_from_named_file(test_ktx_file, KtxTextureCreateFlagBits.LOAD_IMAGE_DATA_BIT)
+        texture.write_to_named_file(copy_file.name)
+
+        with open(test_ktx_file, 'rb') as original, open(copy_file.name, 'rb') as copy:
+            self.assertEqual(original.read(), copy.read())
+
+        os.unlink(copy_file.name)
+
+    def test_write_to_memory(self):
+        test_ktx_file = os.path.join(__test_images__, 'etc2-rgba1.ktx')
+        texture = KtxTexture1.create_from_named_file(test_ktx_file, KtxTextureCreateFlagBits.LOAD_IMAGE_DATA_BIT)
+        texture_bytes = texture.write_to_memory()
+
+        with open(test_ktx_file, 'rb') as original:
+            self.assertEqual(original.read(), texture_bytes)
+
+    def test_get_data(self):
+        test_ktx_file = os.path.join(__test_images__, 'etc2-rgba1.ktx')
+        texture = KtxTexture1.create_from_named_file(test_ktx_file, KtxTextureCreateFlagBits.LOAD_IMAGE_DATA_BIT)
+
+        data = texture.data()
+
+        with open(test_ktx_file, 'rb') as file:
+            level_0_size = texture.image_size(0)
+            self.assertEqual(file.read()[-level_0_size:], data[:])
+
+    def test_create(self):
+        info = KtxTextureCreateInfo(
+            gl_internal_format=GlInternalformat.COMPRESSED_RGBA_ASTC_4x4_KHR,
+            base_width=10,
+            base_height=10,
+            base_depth=1)
+
+        texture = KtxTexture1.create(info, KtxTextureCreateStorage.ALLOC)
+        texture.set_image_from_memory(0, 0, 0, bytes(texture.data_size))