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msm_fb: display: Program source address registers correctly

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Scale filter FIR uses the adjacent pixels as part of the
processing. Source address registers should be program such that
they point to the first valid pixel so that non-ROI pixels are
ignored. This is done by making source x,y offsets to zero and
adding the computed offset to source address.

CRs-Fixed: 380020
Change-Id: I998fdd46f39dc67f32c422ec209da59d1add2e95
Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>

Conflicts:

	drivers/video/msm/mdp4_overlay.c

Signed-off-by: Mayank Chopra <makchopra@codeaurora.org>
This commit is contained in:
Mayank Chopra 2012-08-22 15:01:15 +05:30 committed by Iliyan Malchev
parent c9dc717102
commit 8eb221e7d3
1 changed files with 26 additions and 9 deletions
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35
drivers/video/msm/mdp4_overlay.c
View file

@ -785,36 +785,52 @@ static void mdp4_overlay_vg_get_src_offset(struct mdp4_overlay_pipe *pipe,
*luma_off = 0;
*chroma_off = 0;
if (pipe->src_x && (pipe->frame_format ==
if ((pipe->src_x || pipe->src_y) && (pipe->frame_format ==
MDP4_FRAME_FORMAT_LINEAR)) {
src_xy = (pipe->src_y << 16) | pipe->src_x;
src_xy &= 0xffff0000;
src_xy = 0;
outpdw(vg_base + 0x0004, src_xy); /* MDP_RGB_SRC_XY */
switch (pipe->src_format) {
case MDP_Y_CR_CB_H2V2:
case MDP_Y_CR_CB_GH2V2:
case MDP_Y_CB_CR_H2V2:
*luma_off = pipe->src_x;
*chroma_off = pipe->src_x/2;
*luma_off = pipe->src_x +
(pipe->src_y * pipe->srcp0_ystride);
*chroma_off = pipe->src_x / 2 +
((pipe->src_y / 2) * pipe->srcp1_ystride);
break;
case MDP_Y_CBCR_H2V2_TILE:
case MDP_Y_CRCB_H2V2_TILE:
case MDP_Y_CBCR_H2V2:
case MDP_Y_CRCB_H2V2:
*luma_off = pipe->src_x +
(pipe->src_y * pipe->srcp0_ystride);
*chroma_off = pipe->src_x +
((pipe->src_y / 2) * pipe->srcp1_ystride);
break;
case MDP_Y_CRCB_H1V1:
case MDP_Y_CBCR_H1V1:
*luma_off = pipe->src_x +
(pipe->src_y * pipe->srcp0_ystride);
*chroma_off = pipe->src_x +
((pipe->src_y * 2) * pipe->srcp1_ystride);
break;
case MDP_Y_CRCB_H2V1:
case MDP_Y_CBCR_H2V1:
*luma_off = pipe->src_x;
*chroma_off = pipe->src_x;
*luma_off = pipe->src_x +
(pipe->src_y * pipe->srcp0_ystride);
*chroma_off = pipe->src_x +
(pipe->src_y * pipe->srcp1_ystride);
break;
case MDP_YCRYCB_H2V1:
if (pipe->src_x & 0x1)
pipe->src_x += 1;
*luma_off += pipe->src_x * 2;
*luma_off += pipe->src_x * 2 +
((pipe->src_y * 2) * pipe->srcp0_ystride);
break;
case MDP_ARGB_8888:
@ -827,7 +843,8 @@ static void mdp4_overlay_vg_get_src_offset(struct mdp4_overlay_pipe *pipe,
case MDP_RGB_888:
case MDP_YCBCR_H1V1:
case MDP_YCRCB_H1V1:
*luma_off = pipe->src_x * pipe->bpp;
*luma_off = (pipe->src_x * pipe->bpp) +
(pipe->src_y * pipe->srcp0_ystride);
break;
default: