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msm: mdss: add support for NV21_VENUS in MDP

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Earlier, camera preview buffers were of NV21(YCrCb_420_SP)
and the video buffers were of NV12_VENUS(YCbCr_420_SP_VENUS)
format. Now that the video encoder has support for NV21,
both the camera and video buffers can be of NV21_VENUS
(YCrCb_420_SP_VENUS) format.

If the preview and video buffer sizes are the same, CPP
double pass to generate video and preview buffers can be
avoided and the buffers can now be generated within a
single pass with CPP duplication thereby saving power.

Add support in kernel for NV12_VENUS format to achieve
the same.

Change-Id: Ia0ee0155faaa5ba6d5cafbc0529428734eaf37e5
Signed-off-by: Jayant Shekhar <jshekhar@codeaurora.org>
This commit is contained in:
Jayant Shekhar 2015-03-24 13:38:28 +05:30 • committed by David Keitel
parent db39cdcb68
commit a8e138b0aa
4 changed files with 10 additions and 3 deletions
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2
drivers/video/fbdev/msm/mdss_mdp_formats.h
View file

@ -304,6 +304,8 @@ static struct mdss_mdp_format_params mdss_mdp_format_map[] = {
MDSS_MDP_CHROMA_420, VALID_ROT_WB_FORMAT, C1_B_Cb, C2_R_Cr),
FMT_YUV_PSEUDO(MDP_Y_CBCR_H2V2_VENUS, MDSS_MDP_FETCH_LINEAR,
MDSS_MDP_CHROMA_420, 0, C1_B_Cb, C2_R_Cr),
FMT_YUV_PSEUDO(MDP_Y_CRCB_H2V2_VENUS, MDSS_MDP_FETCH_LINEAR,
MDSS_MDP_CHROMA_420, 0, C2_R_Cr, C1_B_Cb),
FMT_YUV_PLANR(MDP_Y_CB_CR_H2V2, MDSS_MDP_FETCH_LINEAR,
MDSS_MDP_CHROMA_420, VALID_ROT_WB_FORMAT, C2_R_Cr, C1_B_Cb),

3
drivers/video/fbdev/msm/mdss_mdp_rotator.h
View file

@ -1,4 +1,4 @@
/* Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
/* Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
@ -68,6 +68,7 @@ static inline u32 mdss_mdp_get_rotator_dst_format(u32 in_format, u32 in_rot90,
else
return in_format;
case MDP_Y_CBCR_H2V2_VENUS:
case MDP_Y_CRCB_H2V2_VENUS:
case MDP_Y_CBCR_H2V2:
if (in_rot90)
return MDP_Y_CRCB_H2V2;

7
drivers/video/fbdev/msm/mdss_mdp_util.c
View file

@ -610,8 +610,11 @@ int mdss_mdp_get_plane_sizes(struct mdss_mdp_format_params *fmt, u32 w, u32 h,
ps->num_planes = 1;
ps->plane_size[0] = w * h * bpp;
ps->ystride[0] = w * bpp;
} else if (fmt->format == MDP_Y_CBCR_H2V2_VENUS) {
int cf = COLOR_FMT_NV12;
} else if (fmt->format == MDP_Y_CBCR_H2V2_VENUS ||
fmt->format == MDP_Y_CRCB_H2V2_VENUS) {
int cf = (fmt->format == MDP_Y_CBCR_H2V2_VENUS) ?
COLOR_FMT_NV12 : COLOR_FMT_NV21;
ps->num_planes = 2;
ps->ystride[0] = VENUS_Y_STRIDE(cf, w);
ps->ystride[1] = VENUS_UV_STRIDE(cf, w);

1
include/uapi/linux/msm_mdp.h
View file

@ -175,6 +175,7 @@ enum {
MDP_RGBA_8888_UBWC,
MDP_Y_CBCR_H2V2_UBWC,
MDP_RGBX_8888_UBWC,
MDP_Y_CRCB_H2V2_VENUS,
MDP_IMGTYPE_LIMIT,
MDP_RGB_BORDERFILL, /* border fill pipe */
MDP_FB_FORMAT = MDP_IMGTYPE2_START, /* framebuffer format */