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 +1,80 @@
+// SPDX-License-Identifier: Apache-2.0
+// ----------------------------------------------------------------------------
+// Copyright 2023 Arm Limited
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy
+// of the License at:
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+// ----------------------------------------------------------------------------
+
+/**
+ * @brief Unit tests for the vectorized SIMD functionality.
+ */
+
+#include <limits>
+
+#include "gtest/gtest.h"
+
+#include "../astcenc.h"
+
+namespace astcenc
+{
+
+/** @brief Test harness for exploring issue #447. */
+TEST(decode, decode12x12)
+{
+	astcenc_error status;
+	astcenc_config config;
+	astcenc_context* context;
+
+	static const astcenc_swizzle swizzle {
+		ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
+	};
+
+	uint8_t data[16] {
+#if 0
+		0x84,0x00,0x38,0xC8,0x00,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0xB3,0x4D,0x78
+#else
+		0x29,0x00,0x1A,0x97,0x01,0x00,0x00,0x00,
+		0x00,0x00,0x00,0x00,0x00,0xCF,0x97,0x86
+#endif
+	};
+
+	uint8_t output[12*12*4];
+	astcenc_config_init(ASTCENC_PRF_LDR, 12, 12, 1, ASTCENC_PRE_MEDIUM, 0, &config);
+
+	status = astcenc_context_alloc(&config, 1, &context);
+	EXPECT_EQ(status, ASTCENC_SUCCESS);
+
+	astcenc_image image;
+	image.dim_x = 12;
+	image.dim_y = 12;
+	image.dim_z = 1;
+	image.data_type = ASTCENC_TYPE_U8;
+	uint8_t* slices = output;
+	image.data = reinterpret_cast<void**>(&slices);
+
+	status = astcenc_decompress_image(context, data, 16, &image, &swizzle, 0);
+	EXPECT_EQ(status, ASTCENC_SUCCESS);
+#if 0
+	for (int y = 0; y < 12; y++)
+	{
+		for (int x = 0; x < 12; x++)
+		{
+			uint8_t* pixel = output + (12 * 4 * y) + (4 * x);
+			printf("[%2dx%2d] = %03d, %03d, %03d, %03d\n", x, y, pixel[0], pixel[1], pixel[2], pixel[3]);
+		}
+	}
+#endif
+}
+
+}