diff options
| author | Praveen Paneri <praveen.paneri@intel.com> | 2017-07-18 22:52:56 +0530 |
|---|---|---|
| committer | Paulo Zanoni <paulo.r.zanoni@intel.com> | 2017-07-25 12:06:18 -0300 |
| commit | 4bb45416a7a55d860ecaf656767ee15fe8128237 (patch) | |
| tree | 285a094ceecc1617b165a2a31dab2924fea59c68 | |
| parent | 542658a452e7fbd63071dd4be3aa22b1fcc33cf0 (diff) | |
lib/igt_fb: Let others use igt_get_fb_tile_size
This function can be used by igt_draw to get accurate
tile dimensions for all tile formats.
v2: Added comments to function igt_get_fb_tile_size (Daniel)
v3: Fixed errors in comments and coding style (Paulo)
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Praveen Paneri <praveen.paneri@intel.com>
| -rw-r--r-- | lib/igt_fb.c | 15 | ||||
| -rw-r--r-- | lib/igt_fb.h | 2 |
2 files changed, 15 insertions, 2 deletions
diff --git a/lib/igt_fb.c b/lib/igt_fb.c index 93e21c17..c6291e62 100644 --- a/lib/igt_fb.c +++ b/lib/igt_fb.c @@ -74,8 +74,19 @@ static struct format_desc_struct { #define for_each_format(f) \ for (f = format_desc; f - format_desc < ARRAY_SIZE(format_desc); f++) -static void igt_get_fb_tile_size(int fd, uint64_t tiling, int fb_bpp, - unsigned *width_ret, unsigned *height_ret) +/** + * igt_get_fb_tile_size: + * @fd: the DRM file descriptor + * @tiling: tiling layout of the framebuffer (as framebuffer modifier) + * @fb_bpp: bits per pixel of the framebuffer + * @width_ret: width of the tile in bytes + * @height_ret: height of the tile in lines + * + * This function returns width and height of a tile based on the given tiling + * format. + */ +void igt_get_fb_tile_size(int fd, uint64_t tiling, int fb_bpp, + unsigned *width_ret, unsigned *height_ret) { switch (tiling) { case LOCAL_DRM_FORMAT_MOD_NONE: diff --git a/lib/igt_fb.h b/lib/igt_fb.h index f8a845cc..df9ad1fc 100644 --- a/lib/igt_fb.h +++ b/lib/igt_fb.h @@ -95,6 +95,8 @@ enum igt_text_align { align_hcenter = 0x08, }; +void igt_get_fb_tile_size(int fd, uint64_t tiling, int fb_bpp, + unsigned *width_ret, unsigned *height_ret); void igt_calc_fb_size(int fd, int width, int height, int bpp, uint64_t tiling, unsigned *size_ret, unsigned *stride_ret); unsigned int |