| v4l2-common.h (ef1c4a6fa91bbbe9b09f770d28eba31a9edf770c) | v4l2-common.h (d2dc57b10ae2bd2e2e92ce26f2aaf24bcee17c53) |
|---|---|
| 1/* 2 v4l2 common internal API header 3 4 This header contains internal shared ioctl definitions for use by the 5 internal low-level v4l2 drivers. 6 Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal 7 define, 8 --- 306 unchanged lines hidden (view full) --- 315 unsigned int hmax, unsigned int halign, 316 unsigned int salign); 317 318/** 319 * v4l2_find_nearest_size - Find the nearest size among a discrete 320 * set of resolutions contained in an array of a driver specific struct. 321 * 322 * @array: a driver specific array of image sizes | 1/* 2 v4l2 common internal API header 3 4 This header contains internal shared ioctl definitions for use by the 5 internal low-level v4l2 drivers. 6 Each ioctl begins with VIDIOC_INT_ to clearly mark that it is an internal 7 define, 8 --- 306 unchanged lines hidden (view full) --- 315 unsigned int hmax, unsigned int halign, 316 unsigned int salign); 317 318/** 319 * v4l2_find_nearest_size - Find the nearest size among a discrete 320 * set of resolutions contained in an array of a driver specific struct. 321 * 322 * @array: a driver specific array of image sizes |
| 323 * @array_size: the length of the driver specific array of image sizes |
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| 323 * @width_field: the name of the width field in the driver specific struct 324 * @height_field: the name of the height field in the driver specific struct 325 * @width: desired width. 326 * @height: desired height. 327 * 328 * Finds the closest resolution to minimize the width and height differences 329 * between what requested and the supported resolutions. The size of the width 330 * and height fields in the driver specific must equal to that of u32, i.e. four 331 * bytes. 332 * 333 * Returns the best match or NULL if the length of the array is zero. 334 */ | 324 * @width_field: the name of the width field in the driver specific struct 325 * @height_field: the name of the height field in the driver specific struct 326 * @width: desired width. 327 * @height: desired height. 328 * 329 * Finds the closest resolution to minimize the width and height differences 330 * between what requested and the supported resolutions. The size of the width 331 * and height fields in the driver specific must equal to that of u32, i.e. four 332 * bytes. 333 * 334 * Returns the best match or NULL if the length of the array is zero. 335 */ |
| 335#define v4l2_find_nearest_size(array, width_field, height_field, \ | 336#define v4l2_find_nearest_size(array, array_size, width_field, height_field, \ |
| 336 width, height) \ 337 ({ \ 338 BUILD_BUG_ON(sizeof((array)->width_field) != sizeof(u32) || \ 339 sizeof((array)->height_field) != sizeof(u32)); \ 340 (typeof(&(*(array))))__v4l2_find_nearest_size( \ | 337 width, height) \ 338 ({ \ 339 BUILD_BUG_ON(sizeof((array)->width_field) != sizeof(u32) || \ 340 sizeof((array)->height_field) != sizeof(u32)); \ 341 (typeof(&(*(array))))__v4l2_find_nearest_size( \ |
| 341 (array), ARRAY_SIZE(array), sizeof(*(array)), \ | 342 (array), array_size, sizeof(*(array)), \ |
| 342 offsetof(typeof(*(array)), width_field), \ 343 offsetof(typeof(*(array)), height_field), \ 344 width, height); \ 345 }) 346const void * 347__v4l2_find_nearest_size(const void *array, size_t array_size, 348 size_t entry_size, size_t width_offset, 349 size_t height_offset, s32 width, s32 height); --- 37 unchanged lines hidden --- | 343 offsetof(typeof(*(array)), width_field), \ 344 offsetof(typeof(*(array)), height_field), \ 345 width, height); \ 346 }) 347const void * 348__v4l2_find_nearest_size(const void *array, size_t array_size, 349 size_t entry_size, size_t width_offset, 350 size_t height_offset, s32 width, s32 height); --- 37 unchanged lines hidden --- |