| Message ID | 20180821122410.17280-3-skolluku@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Enable cursor plane on DPU | expand |
On Tue, Aug 21, 2018 at 05:54:10PM +0530, Sravanthi Kollukuduru wrote: > The current driver has the opaque blend mode set as the > default causing the black box effect around the cursor. > The fix enables choosing a different blend mode for alpha > enabled formats. > > Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 26 +++++++++++++++++++++----- > 1 file changed, 21 insertions(+), 5 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > index 0cd9456a6c4c..fc6200c74614 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c > @@ -297,14 +297,29 @@ static void dpu_crtc_destroy(struct drm_crtc *crtc) > } > > static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer, > - struct dpu_plane_state *pstate) > + struct dpu_plane_state *pstate, struct dpu_format *format) > { > struct dpu_hw_mixer *lm = mixer->hw_lm; > + uint32_t blend_op; > > /* default to opaque blending */ > - lm->ops.setup_blend_config(lm, pstate->stage, 0XFF, 0, > - DPU_BLEND_FG_ALPHA_FG_CONST | > - DPU_BLEND_BG_ALPHA_BG_CONST); > + blend_op = DPU_BLEND_FG_ALPHA_FG_CONST | > + DPU_BLEND_BG_ALPHA_BG_CONST; > + > + if (format->alpha_enable) { > + /* coverage blending */ > + blend_op = DPU_BLEND_FG_ALPHA_FG_PIXEL | > + DPU_BLEND_BG_ALPHA_FG_PIXEL | > + DPU_BLEND_BG_INV_ALPHA; > + } > + > + lm->ops.setup_blend_config(lm, pstate->stage, > + 0xFF, 0, blend_op); > + > + DPU_DEBUG( > + "format:%4.4s, alpha_en(%u) blend_op:0x%x\n", This will fit on one line. > + (char *) &format->base.pixel_format, drm_get_format_name() please > + format->alpha_enable, blend_op); > } > > static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc) > @@ -401,7 +416,8 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc, > > /* blend config update */ > for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) { > - _dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate); > + _dpu_crtc_setup_blend_cfg(mixer + lm_idx, > + pstate, format); > > mixer[lm_idx].flush_mask |= flush_mask; > > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index 0cd9456a6c4c..fc6200c74614 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -297,14 +297,29 @@ static void dpu_crtc_destroy(struct drm_crtc *crtc) } static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer, - struct dpu_plane_state *pstate) + struct dpu_plane_state *pstate, struct dpu_format *format) { struct dpu_hw_mixer *lm = mixer->hw_lm; + uint32_t blend_op; /* default to opaque blending */ - lm->ops.setup_blend_config(lm, pstate->stage, 0XFF, 0, - DPU_BLEND_FG_ALPHA_FG_CONST | - DPU_BLEND_BG_ALPHA_BG_CONST); + blend_op = DPU_BLEND_FG_ALPHA_FG_CONST | + DPU_BLEND_BG_ALPHA_BG_CONST; + + if (format->alpha_enable) { + /* coverage blending */ + blend_op = DPU_BLEND_FG_ALPHA_FG_PIXEL | + DPU_BLEND_BG_ALPHA_FG_PIXEL | + DPU_BLEND_BG_INV_ALPHA; + } + + lm->ops.setup_blend_config(lm, pstate->stage, + 0xFF, 0, blend_op); + + DPU_DEBUG( + "format:%4.4s, alpha_en(%u) blend_op:0x%x\n", + (char *) &format->base.pixel_format, + format->alpha_enable, blend_op); } static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc) @@ -401,7 +416,8 @@ static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc, /* blend config update */ for (lm_idx = 0; lm_idx < dpu_crtc->num_mixers; lm_idx++) { - _dpu_crtc_setup_blend_cfg(mixer + lm_idx, pstate); + _dpu_crtc_setup_blend_cfg(mixer + lm_idx, + pstate, format); mixer[lm_idx].flush_mask |= flush_mask;
The current driver has the opaque blend mode set as the default causing the black box effect around the cursor. The fix enables choosing a different blend mode for alpha enabled formats. Signed-off-by: Sravanthi Kollukuduru <skolluku@codeaurora.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-)