X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.lua;h=1243ad15de6be7cfb64d059969f958487de837f3;hb=b52fb85a67eefa93ad976d3881a9491dfdbd615d;hp=e5f902c9563785ba8c8326f2de4363fd0a30978d;hpb=9f1e8fb59e1b68b68b4bb1a05e1f4ee37ea47471;p=nageru diff --git a/theme.lua b/theme.lua index e5f902c..1243ad1 100644 --- a/theme.lua +++ b/theme.lua @@ -7,13 +7,15 @@ -- where all the low-level details (such as texture formats) are handled by the -- C++ side and you generally just build chains. +-- TODO: Deal with inputs that are different from our native 1280x720 resolution. + local transition_start = -2.0 local transition_end = -1.0 local zoom_src = 0.0 local zoom_dst = 1.0 local zoom_poi = 0 -- which input to zoom in on -local fade_src = 0.0 -local fade_dst = 1.0 +local fade_src_signal = 0 +local fade_dst_signal = 0 local input0_neutral_color = {0.5, 0.5, 0.5} local input1_neutral_color = {0.5, 0.5, 0.5} @@ -21,6 +23,17 @@ local input1_neutral_color = {0.5, 0.5, 0.5} local live_signal_num = 0 local preview_signal_num = 1 +-- Valid values for live_signal_num and preview_signal_num. +local INPUT0_SIGNAL_NUM = 0 +local INPUT1_SIGNAL_NUM = 1 +local SBS_SIGNAL_NUM = 2 +local STATIC_SIGNAL_NUM = 3 + +-- “fake” signal numbers that signifies that we are fading from one input +-- to the next. +local FADE_VTV_SIGNAL_NUM = 4 -- Video to/from video. +local FADE_VTP_SIGNAL_NUM = 5 -- Video to/from static picture. + -- The main live chain. function make_sbs_chain(hq) local chain = EffectChain.new(16, 9) @@ -77,15 +90,24 @@ local main_chain_hq = make_sbs_chain(true) local main_chain_lq = make_sbs_chain(false) -- A chain to fade between two inputs (live chain only) -local fade_chain_hq = EffectChain.new(16, 9) -local fade_chain_hq_input0 = fade_chain_hq:add_live_input(true) -local fade_chain_hq_wb0_effect = fade_chain_hq:add_effect(WhiteBalanceEffect.new()) -local fade_chain_hq_input1 = fade_chain_hq:add_live_input(true) -local fade_chain_hq_wb1_effect = fade_chain_hq:add_effect(WhiteBalanceEffect.new()) -fade_chain_hq_input0:connect_signal(0) -fade_chain_hq_input1:connect_signal(1) -local fade_chain_mix_effect = fade_chain_hq:add_effect(MixEffect.new(), fade_chain_hq_wb0_effect, fade_chain_hq_wb1_effect) -fade_chain_hq:finalize(true) +local fade_vtv_chain_hq = EffectChain.new(16, 9) +local fade_vtv_chain_hq_input0 = fade_vtv_chain_hq:add_live_input(true) +local fade_vtv_chain_hq_wb0_effect = fade_vtv_chain_hq:add_effect(WhiteBalanceEffect.new()) +local fade_vtv_chain_hq_input1 = fade_vtv_chain_hq:add_live_input(true) +local fade_vtv_chain_hq_wb1_effect = fade_vtv_chain_hq:add_effect(WhiteBalanceEffect.new()) +fade_vtv_chain_hq_input0:connect_signal(0) +fade_vtv_chain_hq_input1:connect_signal(1) +local fade_vtv_chain_mix_effect = fade_vtv_chain_hq:add_effect(MixEffect.new(), fade_vtv_chain_hq_wb0_effect, fade_vtv_chain_hq_wb1_effect) +fade_vtv_chain_hq:finalize(true) + +-- A chain to fade between an inputs and a picture (live chain only) +local fade_vtp_chain_hq = EffectChain.new(16, 9) +local fade_vtp_chain_hq_input0 = fade_vtp_chain_hq:add_live_input(true) +local fade_vtp_chain_hq_wb0_effect = fade_vtp_chain_hq:add_effect(WhiteBalanceEffect.new()) +local fade_vtp_chain_hq_input1 = fade_vtp_chain_hq:add_effect(ImageInput.new("bg.jpeg")) +fade_vtp_chain_hq_input0:connect_signal(0) +local fade_vtp_chain_mix_effect = fade_vtp_chain_hq:add_effect(MixEffect.new(), fade_vtp_chain_hq_wb0_effect, fade_vtp_chain_hq_input1) +fade_vtp_chain_hq:finalize(true) -- A chain to show a single input on screen (HQ version). local simple_chain_hq = EffectChain.new(16, 9) @@ -101,10 +123,20 @@ simple_chain_lq_input:connect_signal(0) -- First input card. Can be changed whe local simple_chain_lq_wb_effect = simple_chain_lq:add_effect(WhiteBalanceEffect.new()) simple_chain_lq:finalize(false) +-- A chain to show a single static picture on screen (HQ version). +local static_chain_hq = EffectChain.new(16, 9) +local static_chain_hq_input = static_chain_hq:add_effect(ImageInput.new("bg.jpeg")) +static_chain_hq:finalize(true) + +-- A chain to show a single static picture on screen (LQ version). +local static_chain_lq = EffectChain.new(16, 9) +local static_chain_lq_input = static_chain_lq:add_effect(ImageInput.new("bg.jpeg")) +static_chain_lq:finalize(false) + -- Returns the number of outputs in addition to the live (0) and preview (1). -- Called only once, at the start of the program. function num_channels() - return 3 + return 4 end -- Returns the name for each additional channel (starting from 2). @@ -114,8 +146,10 @@ function channel_name(channel) return "Input 1" elseif channel == 3 then return "Input 2" - else + elseif channel == 4 then return "Side-by-side" + elseif channel == 5 then + return "Static picture" end end @@ -136,17 +170,14 @@ function set_wb(channel, red, green, blue) end function finish_transitions(t) - -- If live is 2 (SBS) but de-facto single, make it so. - if live_signal_num == 2 and t >= transition_end and zoom_dst == 1.0 then + -- If live is SBS but de-facto single, make it so. + if live_signal_num == SBS_SIGNAL_NUM and t >= transition_end and zoom_dst == 1.0 then live_signal_num = zoom_poi end - -- If live is 3 (fade) but de-facto single, make it so. - if live_signal_num == 3 and t >= transition_end and fade_dst == 1.0 then - live_signal_num = 0 - end - if live_signal_num == 3 and t >= transition_end and fade_dst == 0.0 then - live_signal_num = 1 + -- If live is fade but de-facto single, make it so. + if (live_signal_num == FADE_VTV_SIGNAL_NUM or live_signal_num == FADE_VTP_SIGNAL_NUM) and t >= transition_end then + live_signal_num = fade_dst_signal end end @@ -158,20 +189,26 @@ function get_transitions(t) return {} end - if live_signal_num == 2 and t >= transition_start and t <= transition_end then + if live_signal_num == SBS_SIGNAL_NUM and t >= transition_start and t <= transition_end then -- Zoom in progress. return {"Cut"} end - if (live_signal_num == 0 and preview_signal_num == 1) or - (live_signal_num == 1 and preview_signal_num == 0) then + if (live_signal_num == INPUT0_SIGNAL_NUM or + live_signal_num == INPUT1_SIGNAL_NUM or + live_signal_num == STATIC_SIGNAL_NUM) and + (preview_signal_num == INPUT0_SIGNAL_NUM or + preview_signal_num == INPUT1_SIGNAL_NUM or + preview_signal_num == STATIC_SIGNAL_NUM) then return {"Cut", "", "Fade"} end -- Various zooms. - if live_signal_num == 2 and (preview_signal_num == 0 or preview_signal_num == 1) then + if live_signal_num == SBS_SIGNAL_NUM and + (preview_signal_num == INPUT0_SIGNAL_NUM or preview_signal_num == INPUT1_SIGNAL_NUM) then return {"Cut", "Zoom in"} - elseif (live_signal_num == 0 or live_signal_num == 1) and preview_signal_num == 2 then + elseif (live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM) and + preview_signal_num == SBS_SIGNAL_NUM then return {"Cut", "Zoom out"} end @@ -181,7 +218,7 @@ end function transition_clicked(num, t) if num == 0 then -- Cut. - if live_signal_num == 3 then + if live_signal_num == FADE_VTV_SIGNAL_NUM or live_signal_num == FADE_VTP_SIGNAL_NUM then -- Ongoing fade; finish it immediately. finish_transitions(transition_end) end @@ -190,7 +227,7 @@ function transition_clicked(num, t) live_signal_num = preview_signal_num preview_signal_num = temp - if live_signal_num == 2 then + if live_signal_num == SBS_SIGNAL_NUM then -- Just cut to SBS, we need to reset any zooms. zoom_src = 1.0 zoom_dst = 0.0 @@ -207,8 +244,8 @@ function transition_clicked(num, t) return end - if (live_signal_num == 0 and preview_signal_num == 1) or - (live_signal_num == 1 and preview_signal_num == 0) then + if (live_signal_num == INPUT0_SIGNAL_NUM and preview_signal_num == INPUT1_SIGNAL_NUM) or + (live_signal_num == INPUT1_SIGNAL_NUM and preview_signal_num == INPUT0_SIGNAL_NUM) then -- We can't zoom between these. Just make a cut. io.write("Cutting from " .. live_signal_num .. " to " .. live_signal_num .. "\n") local temp = live_signal_num @@ -217,15 +254,17 @@ function transition_clicked(num, t) return end - if live_signal_num == 2 and (preview_signal_num == 0 or preview_signal_num == 1) then + if live_signal_num == SBS_SIGNAL_NUM and + (preview_signal_num == INPUT0_SIGNAL_NUM or preview_signal_num == INPUT1_SIGNAL_NUM) then -- Zoom in from SBS to single. transition_start = t transition_end = t + 1.0 zoom_src = 0.0 zoom_dst = 1.0 zoom_poi = preview_signal_num - preview_signal_num = 2 - elseif (live_signal_num == 0 or live_signal_num == 1) and preview_signal_num == 2 then + preview_signal_num = SBS_SIGNAL_NUM + elseif (live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM) and + preview_signal_num == SBS_SIGNAL_NUM then -- Zoom out from single to SBS. transition_start = t transition_end = t + 1.0 @@ -233,26 +272,30 @@ function transition_clicked(num, t) zoom_dst = 0.0 preview_signal_num = live_signal_num zoom_poi = live_signal_num - live_signal_num = 2 + live_signal_num = SBS_SIGNAL_NUM end elseif num == 2 then finish_transitions(t) -- Fade. - if live_signal_num == 0 and preview_signal_num == 1 then + if (live_signal_num == INPUT0_SIGNAL_NUM and preview_signal_num == INPUT1_SIGNAL_NUM) or + (live_signal_num == INPUT1_SIGNAL_NUM and preview_signal_num == INPUT0_SIGNAL_NUM) then transition_start = t transition_end = t + 1.0 - fade_src = 1.0 - fade_dst = 0.0 - preview_signal_num = 0 - live_signal_num = 3 - elseif live_signal_num == 1 and preview_signal_num == 0 then + fade_src_signal = live_signal_num + fade_dst_signal = preview_signal_num + preview_signal_num = live_signal_num + live_signal_num = FADE_VTV_SIGNAL_NUM + elseif ((live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM) and + preview_signal_num == STATIC_SIGNAL_NUM) or + ((preview_signal_num == INPUT0_SIGNAL_NUM or preview_signal_num == INPUT1_SIGNAL_NUM) and + live_signal_num == STATIC_SIGNAL_NUM) then transition_start = t transition_end = t + 1.0 - fade_src = 0.0 - fade_dst = 1.0 - preview_signal_num = 1 - live_signal_num = 3 + fade_src_signal = live_signal_num + fade_dst_signal = preview_signal_num + preview_signal_num = live_signal_num + live_signal_num = FADE_VTP_SIGNAL_NUM else -- Fades involving SBS are ignored (we have no chain for it). end @@ -283,47 +326,51 @@ end -- if and only if num==0. function get_chain(num, t, width, height) if num == 0 then -- Live. - if live_signal_num == 0 or live_signal_num == 1 then -- Plain inputs. + if live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM then -- Plain input. prepare = function() simple_chain_hq_input:connect_signal(live_signal_num) - if live_signal_num == 0 then - set_neutral_color(simple_chain_hq_wb_effect, input0_neutral_color) - else - set_neutral_color(simple_chain_hq_wb_effect, input1_neutral_color) - end + set_neutral_color_from_signal(simple_chain_hq_wb_effect, live_signal_num) end return simple_chain_hq, prepare - elseif live_signal_num == 3 then -- Fade. + elseif live_signal_num == STATIC_SIGNAL_NUM then -- Static picture. prepare = function() - fade_chain_hq_input0:connect_signal(0) - set_neutral_color(fade_chain_hq_wb0_effect, input0_neutral_color) - fade_chain_hq_input1:connect_signal(1) - set_neutral_color(fade_chain_hq_wb1_effect, input1_neutral_color) - local tt = (t - transition_start) / (transition_end - transition_start) - if tt < 0.0 then - tt = 0.0 - elseif tt > 1.0 then - tt = 1.0 + end + return static_chain_hq, prepare + elseif live_signal_num == FADE_VTV_SIGNAL_NUM then -- Fade video-to-video. + prepare = function() + fade_vtv_chain_hq_input0:connect_signal(fade_src_signal) + set_neutral_color_from_signal(fade_vtv_chain_hq_wb0_effect, fade_src_signal) + fade_vtv_chain_hq_input1:connect_signal(fade_dst_signal) + set_neutral_color_from_signal(fade_vtv_chain_hq_wb1_effect, fade_dst_signal) + local tt = calc_fade_progress(t, transition_start, transition_end) + + fade_vtv_chain_mix_effect:set_float("strength_first", 1.0 - tt) + fade_vtv_chain_mix_effect:set_float("strength_second", tt) + end + return fade_vtv_chain_hq, prepare + elseif live_signal_num == FADE_VTP_SIGNAL_NUM then -- Fade video-to-picture (or picture-to-video). + prepare = function() + local tt + if fade_src_signal == STATIC_SIGNAL_NUM then + fade_vtp_chain_hq_input0:connect_signal(fade_dst_signal) + set_neutral_color_from_signal(fade_vtp_chain_hq_wb0_effect, fade_dst_signal) + tt = 1.0 - calc_fade_progress(t, transition_start, transition_end) + else + fade_vtp_chain_hq_input0:connect_signal(fade_src_signal) + set_neutral_color_from_signal(fade_vtp_chain_hq_wb0_effect, fade_src_signal) + tt = calc_fade_progress(t, transition_start, transition_end) end - - tt = fade_src + tt * (fade_dst - fade_src) - - -- Make the fade look maybe a tad more natural, by pumping it - -- through a sigmoid function. - tt = 10.0 * tt - 5.0 - tt = 1.0 / (1.0 + math.exp(-tt)) - - fade_chain_mix_effect:set_float("strength_first", tt) - fade_chain_mix_effect:set_float("strength_second", 1.0 - tt) + fade_vtp_chain_mix_effect:set_float("strength_first", 1.0 - tt) + fade_vtp_chain_mix_effect:set_float("strength_second", tt) end - return fade_chain_hq, prepare + return fade_vtp_chain_hq, prepare end - -- SBS code (live_signal_num == 2). + -- SBS code (live_signal_num == SBS_SIGNAL_NUM). if t > transition_end and zoom_dst == 1.0 then -- Special case: Show only the single image on screen. prepare = function() - simple_chain_hq_input:connect_signal(0) + simple_chain_hq_input:connect_signal(INPUT0_SIGNAL_NUM) set_neutral_color(simple_chain_hq_wb_effect, input0_neutral_color) end return simple_chain_hq, prepare @@ -345,26 +392,31 @@ function get_chain(num, t, width, height) if num == 1 then -- Preview. num = preview_signal_num + 2 end - if num == 2 then + if num == INPUT0_SIGNAL_NUM + 2 then prepare = function() simple_chain_lq_input:connect_signal(0) set_neutral_color(simple_chain_lq_wb_effect, input0_neutral_color) end return simple_chain_lq, prepare end - if num == 3 then + if num == INPUT1_SIGNAL_NUM + 2 then prepare = function() simple_chain_lq_input:connect_signal(1) set_neutral_color(simple_chain_lq_wb_effect, input1_neutral_color) end return simple_chain_lq, prepare end - if num == 4 then + if num == SBS_SIGNAL_NUM + 2 then prepare = function() prepare_sbs_chain(main_chain_lq, 0.0, width, height) end return main_chain_lq.chain, prepare end + if num == STATIC_SIGNAL_NUM + 2 then + prepare = function() + end + return static_chain_lq, prepare + end end function place_rectangle(resample_effect, resize_effect, padding_effect, x0, y0, x1, y1, screen_width, screen_height, input_width, input_height) @@ -484,7 +536,7 @@ function prepare_sbs_chain(chain, t, screen_width, screen_height) -- Interpolate between the fullscreen and side-by-side views. local scale0, tx0, tx0 - if zoom_poi == 0 then + if zoom_poi == INPUT0_SIGNAL_NUM then local new_left0 = lerp(left0, 0, t) local new_right0 = lerp(right0, screen_width, t) local new_top0 = lerp(top0, 0, t) @@ -520,3 +572,27 @@ end function set_neutral_color(effect, color) effect:set_vec3("neutral_color", color[1], color[2], color[3]) end + +function set_neutral_color_from_signal(effect, signal) + if signal == INPUT0_SIGNAL_NUM then + set_neutral_color(effect, input0_neutral_color) + else + set_neutral_color(effect, input1_neutral_color) + end +end + +function calc_fade_progress(t, transition_start, transition_end) + local tt = (t - transition_start) / (transition_end - transition_start) + if tt < 0.0 then + tt = 0.0 + elseif tt > 1.0 then + tt = 1.0 + end + + -- Make the fade look maybe a tad more natural, by pumping it + -- through a sigmoid function. + tt = 10.0 * tt - 5.0 + tt = 1.0 / (1.0 + math.exp(-tt)) + + return tt +end