diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c index 6b58761e4b04..d0554082f0dc 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_color.c @@ -420,9 +420,21 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, { const struct drm_color_lut *degamma_lut; struct dc_plane_state *dc_plane_state = plane->dc_state; + enum dc_transfer_func_predefined tf = TRANSFER_FUNCTION_SRGB; uint32_t degamma_size; int r; + /* Get the correct base transfer function for implicit degamma. */ + switch (dc_plane_state->format) { + case SURFACE_PIXEL_FORMAT_VIDEO_420_YCbCr: + case SURFACE_PIXEL_FORMAT_VIDEO_420_YCrCb: + /* DC doesn't have a transfer function for BT601 specifically. */ + tf = TRANSFER_FUNCTION_BT709; + break; + default: + break; + } + if (crtc->cm_has_degamma) { degamma_lut = __extract_blob_lut(crtc->base.degamma_lut, °amma_size); @@ -456,8 +468,7 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, * map these to the atomic one instead. */ if (crtc->cm_is_degamma_srgb) - dc_plane_state->in_transfer_func->tf = - TRANSFER_FUNCTION_SRGB; + dc_plane_state->in_transfer_func->tf = tf; else dc_plane_state->in_transfer_func->tf = TRANSFER_FUNCTION_LINEAR; @@ -472,7 +483,12 @@ int amdgpu_dm_update_plane_color_mgmt(struct dm_crtc_state *crtc, * in linear space. Assume that the input is sRGB. */ dc_plane_state->in_transfer_func->type = TF_TYPE_PREDEFINED; - dc_plane_state->in_transfer_func->tf = TRANSFER_FUNCTION_SRGB; + dc_plane_state->in_transfer_func->tf = tf; + + if (tf != TRANSFER_FUNCTION_SRGB && + !mod_color_calculate_degamma_params( + dc_plane_state->in_transfer_func, NULL, false)) + return -ENOMEM; } else { /* ...Otherwise we can just bypass the DGM block. */ dc_plane_state->in_transfer_func->type = TF_TYPE_BYPASS; |