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drm/amd/display: correct image viewport calculation

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[why]
We didn't transfer the camera/video viewport coordinate
when doing rotation and mirror.

[how]
To correct the viewport coordinate in calculate_viewport().

Signed-off-by: Martin Tsai <Martin.Tsai@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Martin Tsai 2018-07-27 15:39:47 +08:00 committed by Alex Deucher
parent 1b369d3c0d
commit 9b5349f74a
1 changed files with 49 additions and 0 deletions
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49
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -487,6 +487,18 @@ static void calculate_viewport(struct pipe_ctx *pipe_ctx)
pipe_ctx->bottom_pipe->plane_state == pipe_ctx->plane_state;
bool sec_split = pipe_ctx->top_pipe &&
pipe_ctx->top_pipe->plane_state == pipe_ctx->plane_state;
bool flip_vert_scan_dir = false, flip_horz_scan_dir = false;
/*
* Need to calculate the scan direction for viewport to properly determine offset
*/
if (pipe_ctx->plane_state->rotation == ROTATION_ANGLE_180) {
flip_vert_scan_dir = true;
flip_horz_scan_dir = true;
} else if (pipe_ctx->plane_state->rotation == ROTATION_ANGLE_90)
flip_vert_scan_dir = true;
else if (pipe_ctx->plane_state->rotation == ROTATION_ANGLE_270)
flip_horz_scan_dir = true;
if (stream->view_format == VIEW_3D_FORMAT_SIDE_BY_SIDE ||
stream->view_format == VIEW_3D_FORMAT_TOP_AND_BOTTOM) {
@ -530,6 +542,34 @@ static void calculate_viewport(struct pipe_ctx *pipe_ctx)
data->viewport.height = clip.height *
surf_src.height / plane_state->dst_rect.height;
/* To transfer the x, y to correct coordinate on mirror image (camera).
* deg 0 : transfer x,
* deg 90 : don't need to transfer,
* deg180 : transfer y,
* deg270 : transfer x and y.
* To transfer the x, y to correct coordinate on non-mirror image (video).
* deg 0 : don't need to transfer,
* deg 90 : transfer y,
* deg180 : transfer x and y,
* deg270 : transfer x.
*/
if (pipe_ctx->plane_state->horizontal_mirror) {
if (flip_horz_scan_dir && !flip_vert_scan_dir) {
data->viewport.y = surf_src.height - data->viewport.y - data->viewport.height;
data->viewport.x = surf_src.width - data->viewport.x - data->viewport.width;
} else if (flip_horz_scan_dir && flip_vert_scan_dir)
data->viewport.y = surf_src.height - data->viewport.y - data->viewport.height;
else {
if (!flip_horz_scan_dir && !flip_vert_scan_dir)
data->viewport.x = surf_src.width - data->viewport.x - data->viewport.width;
}
} else {
if (flip_horz_scan_dir)
data->viewport.x = surf_src.width - data->viewport.x - data->viewport.width;
if (flip_vert_scan_dir)
data->viewport.y = surf_src.height - data->viewport.y - data->viewport.height;
}
/* Round down, compensate in init */
data->viewport_c.x = data->viewport.x / vpc_div;
data->viewport_c.y = data->viewport.y / vpc_div;
@ -725,6 +765,15 @@ static void calculate_inits_and_adj_vp(struct pipe_ctx *pipe_ctx, struct rect *r
rect_swap_helper(&src);
rect_swap_helper(&data->viewport_c);
rect_swap_helper(&data->viewport);
if (pipe_ctx->plane_state->rotation == ROTATION_ANGLE_270 &&
pipe_ctx->plane_state->horizontal_mirror) {
flip_vert_scan_dir = true;
}
if (pipe_ctx->plane_state->rotation == ROTATION_ANGLE_90 &&
pipe_ctx->plane_state->horizontal_mirror) {
flip_vert_scan_dir = false;
}
} else if (pipe_ctx->plane_state->horizontal_mirror)
flip_horz_scan_dir = !flip_horz_scan_dir;