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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-04-24 18:52:36 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-30 22:20:00 +0200 |
| commit | e7272df342ba337e87e210470bb93d97d192f2e0 (patch) | |
| tree | 19fd9d002d434a0517ef84c8f778ccbb4a5b3872 /drivers/gpu/drm/drm_rect.c | |
| parent | 4954c4282f6b945f1dd5716f92b594a07fa4ffe3 (diff) | |
| download | linux-e7272df342ba337e87e210470bb93d97d192f2e0.tar.bz2 | |
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: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_rect.c')
| -rw-r--r-- | drivers/gpu/drm/drm_rect.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_rect.c b/drivers/gpu/drm/drm_rect.c index dc11a2867f20..7047ca025787 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("%dx%d%+d%+d\n", w, h, r->x1, r->y1); +} +EXPORT_SYMBOL(drm_rect_debug_print); |