From 3e317b58ac4299f1f537879b03ad3ef4d4837a22 Mon Sep 17 00:00:00 2001 From: Sudeep Basavaraj Date: Tue, 5 Jan 2010 18:58:18 +0530 Subject: [PATCH 13/30] OMAP3630:DSS2:Enable Pre-Multiplied Alpha Support Enables dss to process color formats with pre-mulitplied alpha values. With this we can have alpha values defined for each pixel and hence can have different blending values for each pixel. Signed-off-by: Sudeep Basavaraj Signed-off-by: Kishore Y --- drivers/video/omap2/dss/dispc.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c index 7a66ee8..53f2e6f 100644 --- a/drivers/video/omap2/dss/dispc.c +++ b/drivers/video/omap2/dss/dispc.c @@ -913,6 +913,11 @@ static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable) dispc_write_reg(dispc_reg_att[plane], val); } +static void _dispc_set_alpha_blend_attrs(enum omap_plane plane, bool enable) +{ + REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 28, 28); +} + void dispc_enable_replication(enum omap_plane plane, bool enable) { int bit; @@ -1689,6 +1694,9 @@ static int _dispc_setup_plane(enum omap_plane plane, _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode); + if (cpu_is_omap3630() && (plane != OMAP_DSS_VIDEO1)) + _dispc_set_alpha_blend_attrs(plane, 1); + if (plane != OMAP_DSS_VIDEO1) _dispc_setup_global_alpha(plane, global_alpha); -- 1.6.6.1