X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.lua;h=1243ad15de6be7cfb64d059969f958487de837f3;hb=0abd47d9bad672e4ffd882ed3597a3ea67d80eb8;hp=523221ff71e808117682b64e226b386288f95a8b;hpb=75efc41d8a9d350edcbcf0aaa03d5bbb5e61c0f5;p=nageru diff --git a/theme.lua b/theme.lua index 523221f..1243ad1 100644 --- a/theme.lua +++ b/theme.lua @@ -7,31 +7,49 @@ -- 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} 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) - local input0 = chain:add_live_input() + local input0 = chain:add_live_input(true) input0:connect_signal(0) - local input1 = chain:add_live_input() + local input0_wb_effect = chain:add_effect(WhiteBalanceEffect.new()) + local input1 = chain:add_live_input(true) input1:connect_signal(1) + local input1_wb_effect = chain:add_effect(WhiteBalanceEffect.new()) local resample_effect = nil local resize_effect = nil if (hq) then - resample_effect = chain:add_effect(ResampleEffect.new(), input0) + resample_effect = chain:add_effect(ResampleEffect.new(), input0_wb_effect) else - resize_effect = chain:add_effect(ResizeEffect.new(), input0) + resize_effect = chain:add_effect(ResizeEffect.new(), input0_wb_effect) end local padding_effect = chain:add_effect(IntegralPaddingEffect.new()) @@ -40,14 +58,10 @@ function make_sbs_chain(hq) local resample2_effect = nil local resize2_effect = nil if (hq) then - resample2_effect = chain:add_effect(ResampleEffect.new(), input1) + resample2_effect = chain:add_effect(ResampleEffect.new(), input1_wb_effect) else - resize2_effect = chain:add_effect(ResizeEffect.new(), input1) + resize2_effect = chain:add_effect(ResizeEffect.new(), input1_wb_effect) end - -- Effect *saturation_effect = chain->add_effect(new SaturationEffect()) - -- CHECK(saturation_effect->set_float("saturation", 0.3f)) - local wb_effect = chain:add_effect(WhiteBalanceEffect.new()) - wb_effect:set_float("output_color_temperature", 3500.0) local padding2_effect = chain:add_effect(IntegralPaddingEffect.new()) chain:add_effect(OverlayEffect.new(), padding_effect, padding2_effect) @@ -57,12 +71,14 @@ function make_sbs_chain(hq) chain = chain, input0 = { input = input0, + white_balance_effect = input0_wb_effect, resample_effect = resample_effect, resize_effect = resize_effect, padding_effect = padding_effect }, input1 = { input = input1, + white_balance_effect = input1_wb_effect, resample_effect = resample2_effect, resize_effect = resize2_effect, padding_effect = padding2_effect @@ -74,44 +90,94 @@ 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() -local fade_chain_hq_input1 = fade_chain_hq:add_live_input() -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_input0, fade_chain_hq_input1) -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) -local simple_chain_hq_input = simple_chain_hq:add_live_input() +local simple_chain_hq_input = simple_chain_hq:add_live_input(true) simple_chain_hq_input:connect_signal(0) -- First input card. Can be changed whenever you want. +local simple_chain_hq_wb_effect = simple_chain_hq:add_effect(WhiteBalanceEffect.new()) simple_chain_hq:finalize(true) -- A chain to show a single input on screen (LQ version). local simple_chain_lq = EffectChain.new(16, 9) -local simple_chain_lq_input = simple_chain_lq:add_live_input() +local simple_chain_lq_input = simple_chain_lq:add_live_input(true) simple_chain_lq_input:connect_signal(0) -- First input card. Can be changed whenever you want. +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). +-- Called only once for each channel, at the start of the program. +function channel_name(channel) + if channel == 2 then + return "Input 1" + elseif channel == 3 then + return "Input 2" + elseif channel == 4 then + return "Side-by-side" + elseif channel == 5 then + return "Static picture" + end +end + +-- Returns if a given channel supports setting white balance (starting from 2). +-- Called only once for each channel, at the start of the program. +function supports_set_wb(channel) + return channel == 2 or channel == 3 +end + +-- Gets called with a new gray point when the white balance is changing. +-- The color is in linear light (not sRGB gamma). +function set_wb(channel, red, green, blue) + if channel == 2 then + input0_neutral_color = { red, green, blue } + elseif channel == 3 then + input1_neutral_color = { red, green, blue } + end 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 @@ -123,20 +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 @@ -146,7 +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 @@ -155,7 +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 @@ -172,8 +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 @@ -182,15 +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 @@ -198,26 +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 @@ -248,40 +326,52 @@ 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) + 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) - fade_chain_hq_input1:connect_signal(1) - 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 end @@ -302,24 +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) @@ -416,6 +513,8 @@ end function prepare_sbs_chain(chain, t, screen_width, screen_height) chain.input0.input:connect_signal(0) chain.input1.input:connect_signal(1) + set_neutral_color(chain.input0.white_balance_effect, input0_neutral_color) + set_neutral_color(chain.input1.white_balance_effect, input1_neutral_color) -- First input is positioned (16,48) from top-left. local width0 = round(848 * screen_width/1280.0) @@ -437,7 +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) @@ -469,3 +568,31 @@ function prepare_sbs_chain(chain, t, screen_width, screen_height) place_rectangle(chain.input0.resample_effect, chain.input0.resize_effect, chain.input0.padding_effect, left0, top0, right0, bottom0, screen_width, screen_height, 1280, 720) place_rectangle(chain.input1.resample_effect, chain.input1.resize_effect, chain.input1.padding_effect, left1, top1, right1, bottom1, screen_width, screen_height, 1280, 720) 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