diff options
| author | Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> | 2018-04-18 14:19:23 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-18 16:08:23 -0500 |
| commit | 0002d3ac8aadcb2850475557de32234b447ba502 (patch) | |
| tree | 8f8bfa025dd21f14724aba885a59216099107e2b /drivers/gpu/drm/amd/display/dc/core/dc_resource.c | |
| parent | ab9c2062d960df84d41c03efc49cb01071b398c6 (diff) | |
drm/amd/display: truncate scaling ratios and inits to 19 bit precision
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@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 | 25 |
1 files changed, 17 insertions, 8 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 082458f2097c..751f3ac9d921 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -652,6 +652,14 @@ static void calculate_scaling_ratios(struct pipe_ctx *pipe_ctx) pipe_ctx->plane_res.scl_data.ratios.horz_c.value /= 2; pipe_ctx->plane_res.scl_data.ratios.vert_c.value /= 2; } + pipe_ctx->plane_res.scl_data.ratios.horz = dc_fixpt_truncate( + pipe_ctx->plane_res.scl_data.ratios.horz, 19); + pipe_ctx->plane_res.scl_data.ratios.vert = dc_fixpt_truncate( + pipe_ctx->plane_res.scl_data.ratios.vert, 19); + pipe_ctx->plane_res.scl_data.ratios.horz_c = dc_fixpt_truncate( + pipe_ctx->plane_res.scl_data.ratios.horz_c, 19); + pipe_ctx->plane_res.scl_data.ratios.vert_c = dc_fixpt_truncate( + pipe_ctx->plane_res.scl_data.ratios.vert_c, 19); } static void calculate_inits_and_adj_vp(struct pipe_ctx *pipe_ctx, struct view *recout_skip) @@ -688,17 +696,18 @@ static void calculate_inits_and_adj_vp(struct pipe_ctx *pipe_ctx, struct view *r * init_bot = init + scaling_ratio * init_c = init + truncated_vp_c_offset(from calculate viewport) */ - data->inits.h = dc_fixpt_div_int( - dc_fixpt_add_int(data->ratios.horz, data->taps.h_taps + 1), 2); + data->inits.h = dc_fixpt_truncate(dc_fixpt_div_int( + dc_fixpt_add_int(data->ratios.horz, data->taps.h_taps + 1), 2), 19); - data->inits.h_c = dc_fixpt_add(data->inits.h_c, dc_fixpt_div_int( - dc_fixpt_add_int(data->ratios.horz_c, data->taps.h_taps_c + 1), 2)); + data->inits.h_c = dc_fixpt_truncate(dc_fixpt_add(data->inits.h_c, dc_fixpt_div_int( + dc_fixpt_add_int(data->ratios.horz_c, data->taps.h_taps_c + 1), 2)), 19); - data->inits.v = dc_fixpt_div_int( - dc_fixpt_add_int(data->ratios.vert, data->taps.v_taps + 1), 2); + data->inits.v = dc_fixpt_truncate(dc_fixpt_div_int( + dc_fixpt_add_int(data->ratios.vert, data->taps.v_taps + 1), 2), 19); + + data->inits.v_c = dc_fixpt_truncate(dc_fixpt_add(data->inits.v_c, dc_fixpt_div_int( + dc_fixpt_add_int(data->ratios.vert_c, data->taps.v_taps_c + 1), 2)), 19); - data->inits.v_c = dc_fixpt_add(data->inits.v_c, dc_fixpt_div_int( - dc_fixpt_add_int(data->ratios.vert_c, data->taps.v_taps_c + 1), 2)); /* Adjust for viewport end clip-off */ |