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drm/amd/display: fix hsplit viewport calculation for rotated/mirrored usecases 

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dmytro Laktyushkin 2017-03-06 14:57:28 -05:00 committed by Alex Deucher
parent b2d0a103e6
commit 9e6c74ceef
1 changed files with 36 additions and 11 deletions
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47
drivers/gpu/drm/amd/display/dc/core/dc_resource.c
View File

@ -412,6 +412,8 @@ static void calculate_viewport(struct pipe_ctx *pipe_ctx)
struct rect clip = {0};
int vpc_div = (data->format == PIXEL_FORMAT_420BPP12
|| data->format == PIXEL_FORMAT_420BPP15) ? 2 : 1;
bool need_split = (pipe_ctx->top_pipe && pipe_ctx->top_pipe->surface == pipe_ctx->surface)
|| (pipe_ctx->bottom_pipe && pipe_ctx->bottom_pipe->surface == pipe_ctx->surface);
if (surface->rotation == ROTATION_ANGLE_90 ||
@ -466,17 +468,40 @@ static void calculate_viewport(struct pipe_ctx *pipe_ctx)
data->viewport_c.height = (data->viewport.height + vpc_div - 1) / vpc_div;
/* Handle hsplit */
if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->surface == pipe_ctx->surface) {
data->viewport.width /= 2;
data->viewport_c.width /= 2;
data->viewport.x += data->viewport.width;
data->viewport_c.x += data->viewport_c.width;
/* Floor primary pipe, ceil 2ndary pipe */
data->viewport.width += data->viewport.width % 2;
data->viewport_c.width += data->viewport_c.width % 2;
} else if (pipe_ctx->bottom_pipe && pipe_ctx->bottom_pipe->surface == pipe_ctx->surface) {
data->viewport.width /= 2;
data->viewport_c.width /= 2;
if (need_split && (surface->rotation == ROTATION_ANGLE_90 ||
surface->rotation == ROTATION_ANGLE_270)) {
bool lower_view = (surface->rotation == ROTATION_ANGLE_270) ^
(pipe_ctx->top_pipe && pipe_ctx->top_pipe->surface == pipe_ctx->surface);
if (lower_view) {
data->viewport.height /= 2;
data->viewport_c.height /= 2;
data->viewport.y += data->viewport.height;
data->viewport_c.y += data->viewport_c.height;
/* Ceil offset pipe */
data->viewport.height += data->viewport.height % 2;
data->viewport_c.height += data->viewport_c.height % 2;
} else {
data->viewport.height /= 2;
data->viewport_c.height /= 2;
}
} else if (need_split) {
bool right_view = (surface->rotation == ROTATION_ANGLE_180) ^
(pipe_ctx->top_pipe && pipe_ctx->top_pipe->surface == pipe_ctx->surface) ^
surface->horizontal_mirror;
if (right_view) {
data->viewport.width /= 2;
data->viewport_c.width /= 2;
data->viewport.x += data->viewport.width;
data->viewport_c.x += data->viewport_c.width;
/* Ceil offset pipe */
data->viewport.width += data->viewport.width % 2;
data->viewport_c.width += data->viewport_c.width % 2;
} else {
data->viewport.width /= 2;
data->viewport_c.width /= 2;
}
}
}