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Commit e7272df3 authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
Browse files

drm: Add drm_rect_debug_print() 



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.
v3: Use %d format for width/height in the non fixed point case as well

Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: default avatarDave Airlie <airlied@gmail.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 4954c428

drivers/gpu/drm/drm_rect.c

+22 −0
Original line number Diff line number Diff line
@@ -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("%dx%d%+d%+d\n", w, h, r->x1, r->y1);

}

EXPORT_SYMBOL(drm_rect_debug_print);

include/drm/drm_rect.h

+1 −0
Original line number Diff line number Diff line
@@ -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