1// SPDX-License-Identifier: Apache-2.0
2// ----------------------------------------------------------------------------
3// Copyright 2023 Arm Limited
4//
5// Licensed under the Apache License, Version 2.0 (the "License"); you may not
6// use this file except in compliance with the License. You may obtain a copy
7// of the License at:
8//
9//     http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing, software
12// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14// License for the specific language governing permissions and limitations
15// under the License.
16// ----------------------------------------------------------------------------
17
18/**
19 * @brief Unit tests for the vectorized SIMD functionality.
20 */
21
22#include <limits>
23
24#include "gtest/gtest.h"
25
26#include "../astcenc.h"
27
28namespace astcenc
29{
30
31/** @brief Test harness for exploring issue #447. */
32TEST(decode, decode12x12)
33{
34	astcenc_error status;
35	astcenc_config config;
36	astcenc_context* context;
37
38	static const astcenc_swizzle swizzle {
39		ASTCENC_SWZ_R, ASTCENC_SWZ_G, ASTCENC_SWZ_B, ASTCENC_SWZ_A
40	};
41
42	uint8_t data[16] {
43#if 0
44		0x84,0x00,0x38,0xC8,0x00,0x00,0x00,0x00,
45		0x00,0x00,0x00,0x00,0x00,0xB3,0x4D,0x78
46#else
47		0x29,0x00,0x1A,0x97,0x01,0x00,0x00,0x00,
48		0x00,0x00,0x00,0x00,0x00,0xCF,0x97,0x86
49#endif
50	};
51
52	uint8_t output[12*12*4];
53	astcenc_config_init(ASTCENC_PRF_LDR, 12, 12, 1, ASTCENC_PRE_MEDIUM, 0, &config);
54
55	status = astcenc_context_alloc(&config, 1, &context);
56	EXPECT_EQ(status, ASTCENC_SUCCESS);
57
58	astcenc_image image;
59	image.dim_x = 12;
60	image.dim_y = 12;
61	image.dim_z = 1;
62	image.data_type = ASTCENC_TYPE_U8;
63	uint8_t* slices = output;
64	image.data = reinterpret_cast<void**>(&slices);
65
66	status = astcenc_decompress_image(context, data, 16, &image, &swizzle, 0);
67	EXPECT_EQ(status, ASTCENC_SUCCESS);
68
69	for (int y = 0; y < 12; y++)
70	{
71		for (int x = 0; x < 12; x++)
72		{
73			uint8_t* pixel = output + (12 * 4 * y) + (4 * x);
74			printf("[%2dx%2d] = %03d, %03d, %03d, %03d\n", x, y, pixel[0], pixel[1], pixel[2], pixel[3]);
75		}
76	}
77}
78
79}
80