| 1 | /* Copyright (C) 2010-2020 The RetroArch team |
| 2 | * |
| 3 | * --------------------------------------------------------------------------------------- |
| 4 | * The following license statement only applies to this file (rpng_test.c). |
| 5 | * --------------------------------------------------------------------------------------- |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, |
| 8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation the rights to |
| 10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, |
| 11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, |
| 16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
| 19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <stdint.h> |
| 26 | #include <string.h> |
| 27 | #ifdef HAVE_IMLIB2 |
| 28 | #include <Imlib2.h> |
| 29 | #endif |
| 30 | |
| 31 | #include <file/nbio.h> |
| 32 | #include <formats/rpng.h> |
| 33 | #include <formats/image.h> |
| 34 | |
| 35 | static bool rpng_load_image_argb(const char *path, uint32_t **data, |
| 36 | unsigned *width, unsigned *height) |
| 37 | { |
| 38 | int retval; |
| 39 | size_t file_len; |
| 40 | bool ret = true; |
| 41 | rpng_t *rpng = NULL; |
| 42 | void *ptr = NULL; |
| 43 | struct nbio_t* handle = (struct nbio_t*)nbio_open(path, NBIO_READ); |
| 44 | |
| 45 | if (!handle) |
| 46 | goto end; |
| 47 | |
| 48 | nbio_begin_read(handle); |
| 49 | |
| 50 | while (!nbio_iterate(handle)); |
| 51 | |
| 52 | ptr = nbio_get_ptr(handle, &file_len); |
| 53 | |
| 54 | if (!ptr) |
| 55 | { |
| 56 | ret = false; |
| 57 | goto end; |
| 58 | } |
| 59 | |
| 60 | rpng = rpng_alloc(); |
| 61 | |
| 62 | if (!rpng) |
| 63 | { |
| 64 | ret = false; |
| 65 | goto end; |
| 66 | } |
| 67 | |
| 68 | if (!rpng_set_buf_ptr(rpng, (uint8_t*)ptr, file_len)) |
| 69 | { |
| 70 | ret = false; |
| 71 | goto end; |
| 72 | } |
| 73 | |
| 74 | if (!rpng_start(rpng)) |
| 75 | { |
| 76 | ret = false; |
| 77 | goto end; |
| 78 | } |
| 79 | |
| 80 | while (rpng_iterate_image(rpng)); |
| 81 | |
| 82 | if (!rpng_is_valid(rpng)) |
| 83 | { |
| 84 | ret = false; |
| 85 | goto end; |
| 86 | } |
| 87 | |
| 88 | do |
| 89 | { |
| 90 | retval = rpng_process_image(rpng, |
| 91 | (void**)data, file_len, width, height); |
| 92 | }while(retval == IMAGE_PROCESS_NEXT); |
| 93 | |
| 94 | if (retval == IMAGE_PROCESS_ERROR || retval == IMAGE_PROCESS_ERROR_END) |
| 95 | ret = false; |
| 96 | |
| 97 | end: |
| 98 | if (handle) |
| 99 | nbio_free(handle); |
| 100 | if (rpng) |
| 101 | rpng_free(rpng); |
| 102 | rpng = NULL; |
| 103 | if (!ret) |
| 104 | free(*data); |
| 105 | return ret; |
| 106 | } |
| 107 | |
| 108 | static int test_rpng(const char *in_path) |
| 109 | { |
| 110 | #ifdef HAVE_IMLIB2 |
| 111 | Imlib_Image img; |
| 112 | const uint32_t *imlib_data = NULL; |
| 113 | #endif |
| 114 | const uint32_t test_data[] = { |
| 115 | 0xff000000 | 0x50, 0xff000000 | 0x80, |
| 116 | 0xff000000 | 0x40, 0xff000000 | 0x88, |
| 117 | 0xff000000 | 0x50, 0xff000000 | 0x80, |
| 118 | 0xff000000 | 0x40, 0xff000000 | 0x88, |
| 119 | 0xff000000 | 0xc3, 0xff000000 | 0xd3, |
| 120 | 0xff000000 | 0xc3, 0xff000000 | 0xd3, |
| 121 | 0xff000000 | 0xc3, 0xff000000 | 0xd3, |
| 122 | 0xff000000 | 0xc3, 0xff000000 | 0xd3, |
| 123 | }; |
| 124 | uint32_t *data = NULL; |
| 125 | unsigned width = 0; |
| 126 | unsigned height = 0; |
| 127 | |
| 128 | if (!rpng_save_image_argb("/tmp/test.png", test_data, 4, 4, 16)) |
| 129 | return 1; |
| 130 | |
| 131 | if (!rpng_load_image_argb(in_path, &data, &width, &height)) |
| 132 | return 2; |
| 133 | |
| 134 | fprintf(stderr, "Path: %s.\n", in_path); |
| 135 | fprintf(stderr, "Got image: %u x %u.\n", width, height); |
| 136 | |
| 137 | #if 0 |
| 138 | fprintf(stderr, "\nRPNG:\n"); |
| 139 | for (unsigned h = 0; h < height; h++) |
| 140 | { |
| 141 | unsigned w; |
| 142 | for (w = 0; w < width; w++) |
| 143 | fprintf(stderr, "[%08x] ", data[h * width + w]); |
| 144 | fprintf(stderr, "\n"); |
| 145 | } |
| 146 | #endif |
| 147 | |
| 148 | #ifdef HAVE_IMLIB2 |
| 149 | /* Validate with imlib2 as well. */ |
| 150 | img = imlib_load_image(in_path); |
| 151 | if (!img) |
| 152 | return 4; |
| 153 | |
| 154 | imlib_context_set_image(img); |
| 155 | |
| 156 | width = imlib_image_get_width(); |
| 157 | height = imlib_image_get_width(); |
| 158 | imlib_data = imlib_image_get_data_for_reading_only(); |
| 159 | |
| 160 | #if 0 |
| 161 | fprintf(stderr, "\nImlib:\n"); |
| 162 | for (unsigned h = 0; h < height; h++) |
| 163 | { |
| 164 | for (unsigned w = 0; w < width; w++) |
| 165 | fprintf(stderr, "[%08x] ", imlib_data[h * width + w]); |
| 166 | fprintf(stderr, "\n"); |
| 167 | } |
| 168 | #endif |
| 169 | |
| 170 | if (memcmp(imlib_data, data, width * height * sizeof(uint32_t)) != 0) |
| 171 | { |
| 172 | fprintf(stderr, "Imlib and RPNG differs!\n"); |
| 173 | return 5; |
| 174 | } |
| 175 | else |
| 176 | fprintf(stderr, "Imlib and RPNG are equivalent!\n"); |
| 177 | |
| 178 | imlib_free_image(); |
| 179 | #endif |
| 180 | free(data); |
| 181 | |
| 182 | return 0; |
| 183 | } |
| 184 | |
| 185 | int main(int argc, char *argv[]) |
| 186 | { |
| 187 | const char *in_path = "/tmp/test.png"; |
| 188 | |
| 189 | if (argc > 2) |
| 190 | { |
| 191 | fprintf(stderr, "Usage: %s <png file>\n", argv[0]); |
| 192 | return 1; |
| 193 | } |
| 194 | |
| 195 | if (argc == 2) |
| 196 | in_path = argv[1]; |
| 197 | |
| 198 | fprintf(stderr, "Doing tests...\n"); |
| 199 | |
| 200 | if (test_rpng(in_path) != 0) |
| 201 | { |
| 202 | fprintf(stderr, "Test failed.\n"); |
| 203 | return -1; |
| 204 | } |
| 205 | |
| 206 | return 0; |
| 207 | } |