diff options
| author | Reza Amini <Reza.Amini@amd.com> | 2019-06-10 16:45:50 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-18 14:27:25 -0500 |
| commit | f7938bc0f08b3d748d20dc2c88914f03331dce94 (patch) | |
| tree | be7c91f42b3548b6494300397334b155020a8328 /drivers/gpu/drm/amd/display/dc/core/dc_resource.c | |
| parent | f1cdc98fd9d9bb0eb4b6599825b52ce25757eb9f (diff) | |
drm/amd/display: Implement DAL3 GPU Integer Scaling
[WHY]
Users want to not have filtering when scaling by integer
multiples to native timing.
[HOW]
If timing is a multiple integer of view, we set number of taps
to 1 (effectivly closest neighbour).
Signed-off-by: Reza Amini <Reza.Amini@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Acked-by: Tony Cheng <Tony.Cheng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index a0e29c37ab69..e4d0035b4ed4 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -940,7 +940,14 @@ static void calculate_inits_and_adj_vp(struct pipe_ctx *pipe_ctx) data->inits.v_c_bot = dc_fixpt_add(data->inits.v_c, data->ratios.vert_c); } +static bool are_rect_integer_multiples(struct rect src, struct rect dest) +{ + if (dest.width >= src.width && dest.width % src.width == 0 && + dest.height >= src.height && dest.height % src.height == 0) + return true; + return false; +} bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx) { const struct dc_plane_state *plane_state = pipe_ctx->plane_state; @@ -983,6 +990,15 @@ bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx) if (pipe_ctx->plane_res.dpp != NULL) res = pipe_ctx->plane_res.dpp->funcs->dpp_get_optimal_number_of_taps( pipe_ctx->plane_res.dpp, &pipe_ctx->plane_res.scl_data, &plane_state->scaling_quality); + + if (res && + plane_state->scaling_quality.integer_scaling && + are_rect_integer_multiples(pipe_ctx->plane_res.scl_data.viewport, + pipe_ctx->plane_res.scl_data.recout)) { + pipe_ctx->plane_res.scl_data.taps.v_taps = 1; + pipe_ctx->plane_res.scl_data.taps.h_taps = 1; + } + if (!res) { /* Try 24 bpp linebuffer */ pipe_ctx->plane_res.scl_data.lb_params.depth = LB_PIXEL_DEPTH_24BPP; |