From: Ville Syrjälä ville.syrjala@linux.intel.com
Add a debug function to print the rectangle in a human readable format.
v2: Renamed drm_region to drm_rect, the function from drm_region_debug to drm_rect_debug_print(), and use %+d instead of +%d in the format.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/drm_rect.c | 22 ++++++++++++++++++++++ include/drm/drm_rect.h | 1 + 2 files changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c index 8270ab4..ed19b77 100644 --- a/drivers/gpu/drm/drm_rect.c +++ b/drivers/gpu/drm/drm_rect.c @@ -24,6 +24,7 @@ #include <linux/errno.h> #include <linux/export.h> #include <linux/kernel.h> +#include <drm/drmP.h> #include <drm/drm_rect.h>
/** @@ -271,3 +272,24 @@ int drm_rect_calc_vscale_relaxed(struct drm_rect *src, return vscale; } EXPORT_SYMBOL(drm_rect_calc_vscale_relaxed); + +/** + * drm_rect_debug_print - print the rectangle information + * @r: rectangle to print + * @fixed_point: rectangle is in 16.16 fixed point format + */ +void drm_rect_debug_print(const struct drm_rect *r, bool fixed_point) +{ + int w = drm_rect_width(r); + int h = drm_rect_height(r); + + if (fixed_point) + DRM_DEBUG_KMS("%d.%06ux%d.%06u%+d.%06u%+d.%06u\n", + w >> 16, ((w & 0xffff) * 15625) >> 10, + h >> 16, ((h & 0xffff) * 15625) >> 10, + r->x1 >> 16, ((r->x1 & 0xffff) * 15625) >> 10, + r->y1 >> 16, ((r->y1 & 0xffff) * 15625) >> 10); + else + DRM_DEBUG_KMS("%ux%u%+d%+d\n", w, h, r->x1, r->y1); +} +EXPORT_SYMBOL(drm_rect_debug_print); diff --git a/include/drm/drm_rect.h b/include/drm/drm_rect.h index 164e6ce..d5d4e1c 100644 --- a/include/drm/drm_rect.h +++ b/include/drm/drm_rect.h @@ -140,5 +140,6 @@ int drm_rect_calc_hscale_relaxed(struct drm_rect *src, int drm_rect_calc_vscale_relaxed(struct drm_rect *src, struct drm_rect *dst, int min_vscale, int max_vscale); +void drm_rect_debug_print(const struct drm_rect *r, bool fixed_point);
#endif