[Intel-gfx] [PATCH 14/23] drm/dsc: Define the DSC 1.1 and 1.2 Line Buffer depth constants

Srivatsa, Anusha anusha.srivatsa at intel.com
Tue Aug 28 22:04:48 UTC 2018



>-----Original Message-----
>From: Navare, Manasi D
>Sent: Monday, July 30, 2018 7:13 PM
>To: intel-gfx at lists.freedesktop.org
>Cc: ville.syrjala at linux.intel.com; jani.nikula at linux.intel.com; Srivatsa, Anusha
><anusha.srivatsa at intel.com>; Singh, Gaurav K <gaurav.k.singh at intel.com>; dri-
>devel at lists.freedesktop.org; Navare, Manasi D <manasi.d.navare at intel.com>
>Subject: [PATCH 14/23] drm/dsc: Define the DSC 1.1 and 1.2 Line Buffer depth
>constants
>
>From: Gaurav K Singh <gaurav.k.singh at intel.com>
>
>DSC specification defines linebuf_depth which contains the line buffer bit depth
>used to generate the bitstream.
>These values are defined as per Table 4.1 in DSC 1.2 spec
>
>v2 (From Manasi):
>* Rename as MAX_LINEBUF_DEPTH for DSC 1.1 and DSC 1.2
>
>Cc: dri-devel at lists.freedesktop.org
>Cc: Jani Nikula <jani.nikula at linux.intel.com>
>Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
>Signed-off-by: Gaurav K Singh <gaurav.k.singh at intel.com>
>Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa at intel.com>
>---
> include/drm/drm_dsc.h | 3 +++
> 1 file changed, 3 insertions(+)
>
>diff --git a/include/drm/drm_dsc.h b/include/drm/drm_dsc.h index
>30adc15..4cfcd03 100644
>--- a/include/drm/drm_dsc.h
>+++ b/include/drm/drm_dsc.h
>@@ -56,6 +56,9 @@
> #define DSC_PPS_RC_RANGE_MINQP_SHIFT		11
> #define DSC_PPS_RC_RANGE_MAXQP_SHIFT		6
> #define DSC_PPS_NATIVE_420_SHIFT		1
>+#define DSC_1_2_MAX_LINEBUF_DEPTH_BITS		16
>+#define DSC_1_2_MAX_LINEBUF_DEPTH_VAL		0
>+#define DSC_1_1_MAX_LINEBUF_DEPTH_BITS		13
>
> /* Configuration for a single Rate Control model range */  struct
>dsc_rc_range_parameters {
>--
>2.7.4



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