X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.lua;h=bbc086a4e86f478dde7c2b66eabe8f64e78a0aee;hb=f006b5b162841dbc764fb620025b87a3272ac79a;hp=a7fc812533c28d3789f6143773ab81d99ba54b8b;hpb=5546fa27f69dad8ec5872b9cc3eac0a0b043e369;p=nageru diff --git a/theme.lua b/theme.lua index a7fc812..bbc086a 100644 --- a/theme.lua +++ b/theme.lua @@ -7,8 +7,6 @@ -- 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 @@ -33,10 +31,32 @@ local STATIC_SIGNAL_NUM = 3 -- to the next. local FADE_SIGNAL_NUM = 4 +-- Last width/height/frame rate for each channel, if we have it. +-- Note that unlike the values we get from Nageru, the resolution is per +-- frame and not per field, since we deinterlace. +local last_resolution = {} + +-- Utility function to help creating many similar chains that can differ +-- in a free set of chosen parameters. +function make_cartesian_product(parms, callback) + return make_cartesian_product_internal(parms, callback, 1, {}) +end + +function make_cartesian_product_internal(parms, callback, index, args) + if index > #parms then + return callback(unpack(args)) + end + local ret = {} + for _, value in ipairs(parms[index]) do + args[index] = value + ret[value] = make_cartesian_product_internal(parms, callback, index + 1, args) + end + return ret +end + function make_sbs_input(chain, signal, deint, hq) local input = chain:add_live_input(not deint, deint) -- Override bounce only if not deinterlacing. input:connect_signal(signal) - local wb_effect = chain:add_effect(WhiteBalanceEffect.new()) local resample_effect = nil local resize_effect = nil @@ -45,6 +65,7 @@ function make_sbs_input(chain, signal, deint, hq) else resize_effect = chain:add_effect(ResizeEffect.new()) end + local wb_effect = chain:add_effect(WhiteBalanceEffect.new()) local padding_effect = chain:add_effect(IntegralPaddingEffect.new()) @@ -78,102 +99,120 @@ function make_sbs_chain(input0_deint, input1_deint, hq) end -- Make all possible combinations of side-by-side chains. -local sbs_chains = {} -for input0_type, input0_deint in pairs({live = false, livedeint = true}) do - sbs_chains[input0_type] = {} - for input1_type, input1_deint in pairs({live = false, livedeint = true}) do - sbs_chains[input0_type][input1_type] = {} - for _, hq in pairs({true, false}) do - sbs_chains[input0_type][input1_type][hq] = - make_sbs_chain(input0_deint, input1_deint, hq) - end +local sbs_chains = make_cartesian_product({ + {"live", "livedeint"}, -- input0_type + {"live", "livedeint"}, -- input1_type + {true, false} -- hq +}, function(input0_type, input1_type, hq) + local input0_deint = (input0_type == "livedeint") + local input1_deint = (input1_type == "livedeint") + return make_sbs_chain(input0_deint, input1_deint, hq) +end) + +function make_fade_input(chain, signal, live, deint, scale) + local input, wb_effect, resample_effect, last + if live then + input = chain:add_live_input(false, deint) + input:connect_signal(signal) + last = input + else + input = chain:add_effect(ImageInput.new("bg.jpeg")) + last = input + end + + -- If we cared about this for the non-main inputs, we would have + -- checked hq here and invoked ResizeEffect instead. + if scale then + resample_effect = chain:add_effect(ResampleEffect.new()) + last = resample_effect + end + + -- Make sure to put the white balance after the scaling (usually more efficient). + if live then + wb_effect = chain:add_effect(WhiteBalanceEffect.new()) + last = wb_effect end + + return { + input = input, + wb_effect = wb_effect, + resample_effect = resample_effect, + last = last + } end -- A chain to fade between two inputs, of which either can be a picture -- or a live input. In practice only used live, but we still support the -- hq parameter. -function make_fade_chain(input0_live, input0_deint, input1_live, input1_deint, hq) +function make_fade_chain(input0_live, input0_deint, input0_scale, input1_live, input1_deint, input1_scale, hq) local chain = EffectChain.new(16, 9) - local input0, wb0_effect, input0_last, input1, wb1_effect, input1_last - - if input0_live then - input0 = chain:add_live_input(false, input0_deint) - wb0_effect = chain:add_effect(WhiteBalanceEffect.new()) - input0:connect_signal(0) - input0_last = wb0_effect - else - input0 = chain:add_effect(ImageInput.new("bg.jpeg")) - input0_last = input0 - end + local input0 = make_fade_input(chain, INPUT0_SIGNAL_NUM, input0_live, input0_deint, input0_scale) + local input1 = make_fade_input(chain, INPUT1_SIGNAL_NUM, input1_live, input1_deint, input1_scale) - if input1_live then - input1 = chain:add_live_input(false, input1_deint) - wb1_effect = chain:add_effect(WhiteBalanceEffect.new()) - input1:connect_signal(1) - input1_last = wb1_effect - else - input1 = chain:add_effect(ImageInput.new("bg.jpeg")) - input1_last = input1 - end - - local mix_effect = chain:add_effect(MixEffect.new(), input0_last, input1_last) + local mix_effect = chain:add_effect(MixEffect.new(), input0.last, input1.last) chain:finalize(hq) return { chain = chain, - input0 = { - input = input0, - wb_effect = wb0_effect - }, - input1 = { - input = input1, - wb_effect = wb1_effect - }, + input0 = input0, + input1 = input1, mix_effect = mix_effect } end -- Chains to fade between two inputs, in various configurations. -local fade_chains = {} -for input0_type, input0_live in pairs({static = false, live = true, livedeint = true}) do - local input0_deint = (input0_live == "livedeint") - fade_chains[input0_type] = {} - for input1_type, input1_live in pairs({static = false, live = true, livedeint = true}) do - local input1_deint = (input1_live == "livedeint") - fade_chains[input0_type][input1_type] = {} - for _, hq in pairs({true, false}) do - fade_chains[input0_type][input1_type][hq] = - make_fade_chain(input0_live, input0_deint, input1_live, input1_deint, hq) - end - end -end +local fade_chains = make_cartesian_product({ + {"static", "live", "livedeint"}, -- input0_type + {true, false}, -- input0_scale + {"static", "live", "livedeint"}, -- input1_type + {true, false}, -- input1_scale + {true} -- hq +}, function(input0_type, input0_scale, input1_type, input1_scale, hq) + local input0_live = (input0_type ~= "static") + local input1_live = (input1_type ~= "static") + local input0_deint = (input0_type == "livedeint") + local input1_deint = (input1_type == "livedeint") + return make_fade_chain(input0_live, input0_deint, input0_scale, input1_live, input1_deint, input1_scale, hq) +end) -- A chain to show a single input on screen. -function make_simple_chain(input_deint, hq) +function make_simple_chain(input_deint, input_scale, hq) local chain = EffectChain.new(16, 9) local input = chain:add_live_input(false, input_deint) input:connect_signal(0) -- First input card. Can be changed whenever you want. + + local resample_effect, resize_effect + if scale then + if hq then + resample_effect = chain:add_effect(ResampleEffect.new()) + else + resize_effect = chain:add_effect(ResizeEffect.new()) + end + end + local wb_effect = chain:add_effect(WhiteBalanceEffect.new()) chain:finalize(hq) return { chain = chain, input = input, - wb_effect = wb_effect + wb_effect = wb_effect, + resample_effect = resample_effect, + resize_effect = resize_effect } end -- Make all possible combinations of single-input chains. -local simple_chains = {} -for input_type, input_deint in pairs({live = false, livedeint = true}) do - simple_chains[input_type] = {} - for _, hq in pairs({true, false}) do - simple_chains[input_type][hq] = make_simple_chain(input_deint, hq) - end -end +local simple_chains = make_cartesian_product({ + {"live", "livedeint"}, -- input_type + {true, false}, -- input_scale + {true, false} -- hq +}, function(input_type, input_scale, hq) + local input_deint = (input_type == "livedeint") + return make_simple_chain(input_deint, input_scale, hq) +end) -- A chain to show a single static picture on screen (HQ version). local static_chain_hq = EffectChain.new(16, 9) @@ -196,19 +235,80 @@ function get_input_type(signals, signal_num) end end +function needs_scale(signals, signal_num, width, height) + if signal_num == STATIC_SIGNAL_NUM then + -- We assume this is already correctly scaled at load time. + return false + end + assert(signal_num == INPUT0_SIGNAL_NUM or signal_num == INPUT1_SIGNAL_NUM) + return (signals:get_width(signal_num) ~= width or signals:get_height(signal_num) ~= height) +end + +function set_scale_parameters_if_needed(chain_or_input, width, height) + if chain_or_input.resample_effect then + chain_or_input.resample_effect:set_int("width", width) + chain_or_input.resample_effect:set_int("height", height) + elseif chain_or_input.resize_effect then + chain_or_input.resize_effect:set_int("width", width) + chain_or_input.resize_effect:set_int("height", height) + end +end + +-- API ENTRY POINT -- 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 4 end +-- Helper function to write e.g. “720p60”. The difference between this +-- and get_channel_resolution_raw() is that this one also can say that +-- there's no signal. +function get_channel_resolution(signal_num) + res = last_resolution[signal_num] + if (not res) or res.height <= 0 then + return "no signal" + end + if not res.has_signal then + if res.height == 525 then + -- Special mode for the USB3 cards. + return "no signal" + end + return get_channel_resolution_raw(res) .. ", no signal" + else + return get_channel_resolution_raw(res) + end +end + +-- Helper function to write e.g. “60” or “59.94”. +function get_frame_rate(res) + local nom = res.frame_rate_nom + local den = res.frame_rate_den + if nom % den == 0 then + return nom / den + else + return string.format("%.2f", nom / den) + end +end + +-- Helper function to write e.g. “720p60”. +function get_channel_resolution_raw(res) + if res.interlaced then + return res.height .. "i" .. get_frame_rate(res) + else + return res.height .. "p" .. get_frame_rate(res) + end +end + +-- API ENTRY POINT -- Returns the name for each additional channel (starting from 2). --- Called only once for each channel, at the start of the program. +-- Called at the start of the program, and then each frame for live +-- channels in case they change resolution. function channel_name(channel) if channel == 2 then - return "Input 1" + return "Input 1 (" .. get_channel_resolution(0) .. ")" elseif channel == 3 then - return "Input 2" + return "Input 2 (" .. get_channel_resolution(1) .. ")" elseif channel == 4 then return "Side-by-side" elseif channel == 5 then @@ -216,12 +316,66 @@ function channel_name(channel) end end +-- API ENTRY POINT +-- Returns, given a channel number, which signal it corresponds to (starting from 0). +-- Should return -1 if the channel does not correspond to a simple signal. +-- (The information is used for whether right-click on the channel should bring up +-- an input selector or not.) +-- Called once for each channel, at the start of the program. +-- Will never be called for live (0) or preview (1). +function channel_signal(channel) + if channel == 2 then + return 0 + elseif channel == 3 then + return 1 + else + return -1 + end +end + +-- API ENTRY POINT +-- Called every frame. Returns the color (if any) to paint around the given +-- channel. Returns a CSS color (typically to mark live and preview signals); +-- "transparent" is allowed. +-- Will never be called for live (0) or preview (1). +function channel_color(channel) + if channel_involved_in(channel, live_signal_num) then + return "#f00" + end + if channel_involved_in(channel, preview_signal_num) then + return "#0f0" + end + return "transparent" +end + +function channel_involved_in(channel, signal_num) + if signal_num == INPUT0_SIGNAL_NUM then + return channel == 2 + end + if signal_num == INPUT1_SIGNAL_NUM then + return channel == 3 + end + if signal_num == SBS_SIGNAL_NUM then + return (channel == 2 or channel == 3) + end + if signal_num == STATIC_SIGNAL_NUM then + return (channel == 5) + end + if signal_num == FADE_SIGNAL_NUM then + return (channel_involved_in(channel, fade_src_signal) or + channel_involved_in(channel, fade_dst_signal)) + end + return false +end + +-- API ENTRY POINT -- 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 +-- API ENTRY POINT -- 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) @@ -244,11 +398,13 @@ function finish_transitions(t) end end +-- API ENTRY POINT -- Called every frame. function get_transitions(t) finish_transitions(t) if live_signal_num == preview_signal_num then + -- No transitions possible. return {} end @@ -278,6 +434,8 @@ function get_transitions(t) return {"Cut"} end +-- API ENTRY POINT +-- Called when the user clicks a transition button. function transition_clicked(num, t) if num == 0 then -- Cut. @@ -360,10 +518,12 @@ function transition_clicked(num, t) end end +-- API ENTRY POINT function channel_clicked(num) preview_signal_num = num end +-- API ENTRY POINT -- Called every frame. Get the chain for displaying at input , -- where 0 is live, 1 is preview, 2 is the first channel to display -- in the bottom bar, and so on up to num_channels()+1. t is the @@ -388,12 +548,40 @@ end -- NOTE: The chain returned must be finalized with the Y'CbCr flag -- if and only if num==0. function get_chain(num, t, width, height, signals) + local input_resolution = {} + for signal_num=0,1 do + local res = { + width = signals:get_width(signal_num), + height = signals:get_height(signal_num), + interlaced = signals:get_interlaced(signal_num), + has_signal = signals:get_has_signal(signal_num), + frame_rate_nom = signals:get_frame_rate_nom(signal_num), + frame_rate_den = signals:get_frame_rate_den(signal_num) + } + + if res.interlaced then + -- Convert height from frame height to field height. + -- (Needed for e.g. place_rectangle.) + res.height = res.height * 2 + + -- Show field rate instead of frame rate; really for cosmetics only + -- (and actually contrary to EBU recommendations, although in line + -- with typical user expectations). + res.frame_rate_nom = res.frame_rate_nom * 2 + end + + input_resolution[signal_num] = res + end + last_resolution = input_resolution + if num == 0 then -- Live. if live_signal_num == INPUT0_SIGNAL_NUM or live_signal_num == INPUT1_SIGNAL_NUM then -- Plain input. local input_type = get_input_type(signals, live_signal_num) - local chain = simple_chains[input_type][true] + local input_scale = needs_scale(signals, live_signal_num, width, height) + local chain = simple_chains[input_type][input_scale][true] prepare = function() chain.input:connect_signal(live_signal_num) + set_scale_parameters_if_needed(chain, width, height) set_neutral_color_from_signal(chain.wb_effect, live_signal_num) end return chain.chain, prepare @@ -403,17 +591,21 @@ function get_chain(num, t, width, height, signals) return static_chain_hq, prepare elseif live_signal_num == FADE_SIGNAL_NUM then -- Fade. local input0_type = get_input_type(signals, fade_src_signal) + local input0_scale = needs_scale(signals, fade_src_signal, width, height) local input1_type = get_input_type(signals, fade_dst_signal) - local chain = fade_chains[input0_type][input1_type][true] + local input1_scale = needs_scale(signals, fade_dst_signal, width, height) + local chain = fade_chains[input0_type][input0_scale][input1_type][input1_scale][true] prepare = function() - if input0_type == "live" then + if input0_type == "live" or input0_type == "livedeint" then chain.input0.input:connect_signal(fade_src_signal) set_neutral_color_from_signal(chain.input0.wb_effect, fade_src_signal) end - if input1_type == "live" then + set_scale_parameters_if_needed(chain.input0, width, height) + if input1_type == "live" or input1_type == "livedeint" then chain.input1.input:connect_signal(fade_dst_signal) set_neutral_color_from_signal(chain.input1.wb_effect, fade_dst_signal) end + set_scale_parameters_if_needed(chain.input1, width, height) local tt = calc_fade_progress(t, transition_start, transition_end) chain.mix_effect:set_float("strength_first", 1.0 - tt) @@ -427,9 +619,11 @@ function get_chain(num, t, width, height, signals) local input1_type = get_input_type(signals, INPUT1_SIGNAL_NUM) if t > transition_end and zoom_dst == 1.0 then -- Special case: Show only the single image on screen. - local chain = simple_chains[input0_type][true] + local input0_scale = needs_scale(signals, fade_src_signal, width, height) + local chain = simple_chains[input0_type][input0_scale][true] prepare = function() chain.input:connect_signal(INPUT0_SIGNAL_NUM) + set_scale_parameters_if_needed(chain, width, height) set_neutral_color(chain.wb_effect, input0_neutral_color) end return chain.chain, prepare @@ -437,14 +631,14 @@ function get_chain(num, t, width, height, signals) local chain = sbs_chains[input0_type][input1_type][true] prepare = function() if t < transition_start then - prepare_sbs_chain(chain, zoom_src, width, height) + prepare_sbs_chain(chain, zoom_src, width, height, input_resolution) elseif t > transition_end then - prepare_sbs_chain(chain, zoom_dst, width, height) + prepare_sbs_chain(chain, zoom_dst, width, height, input_resolution) else local tt = (t - transition_start) / (transition_end - transition_start) -- Smooth it a bit. tt = math.sin(tt * 3.14159265358 * 0.5) - prepare_sbs_chain(chain, zoom_src + (zoom_dst - zoom_src) * tt, width, height) + prepare_sbs_chain(chain, zoom_src + (zoom_dst - zoom_src) * tt, width, height, input_resolution) end end return chain.chain, prepare @@ -456,18 +650,22 @@ function get_chain(num, t, width, height, signals) -- Individual preview inputs. if num == INPUT0_SIGNAL_NUM + 2 then local input_type = get_input_type(signals, INPUT0_SIGNAL_NUM) - local chain = simple_chains[input_type][false] + local input_scale = needs_scale(signals, INPUT0_SIGNAL_NUM, width, height) + local chain = simple_chains[input_type][input_scale][false] prepare = function() chain.input:connect_signal(INPUT0_SIGNAL_NUM) + set_scale_parameters_if_needed(chain, width, height) set_neutral_color(chain.wb_effect, input0_neutral_color) end return chain.chain, prepare end if num == INPUT1_SIGNAL_NUM + 2 then local input_type = get_input_type(signals, INPUT1_SIGNAL_NUM) - local chain = simple_chains[input_type][false] + local input_scale = needs_scale(signals, INPUT1_SIGNAL_NUM, width, height) + local chain = simple_chains[input_type][input_scale][false] prepare = function() chain.input:connect_signal(INPUT1_SIGNAL_NUM) + set_scale_parameters_if_needed(chain, width, height) set_neutral_color(chain.wb_effect, input1_neutral_color) end return chain.chain, prepare @@ -477,7 +675,7 @@ function get_chain(num, t, width, height, signals) local input1_type = get_input_type(signals, INPUT1_SIGNAL_NUM) local chain = sbs_chains[input0_type][input1_type][false] prepare = function() - prepare_sbs_chain(chain, 0.0, width, height) + prepare_sbs_chain(chain, 0.0, width, height, input_resolution) end return chain.chain, prepare end @@ -494,6 +692,9 @@ function place_rectangle(resample_effect, resize_effect, padding_effect, x0, y0, local srcy0 = 0.0 local srcy1 = 1.0 + padding_effect:set_int("width", screen_width) + padding_effect:set_int("height", screen_height) + -- Cull. if x0 > screen_width or x1 < 0.0 or y0 > screen_height or y1 < 0.0 then resample_effect:set_int("width", 1) @@ -579,7 +780,7 @@ function lerp(a, b, t) return a + (b - a) * t end -function prepare_sbs_chain(chain, t, screen_width, screen_height) +function prepare_sbs_chain(chain, t, screen_width, screen_height, input_resolution) chain.input0.input:connect_signal(0) chain.input1.input:connect_signal(1) set_neutral_color(chain.input0.wb_effect, input0_neutral_color) @@ -634,8 +835,8 @@ function prepare_sbs_chain(chain, t, screen_width, screen_height) bottom1 = bottom1 * scale0 + ty0 left1 = left1 * scale0 + tx0 right1 = right1 * scale0 + tx0 - 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) + place_rectangle(chain.input0.resample_effect, chain.input0.resize_effect, chain.input0.padding_effect, left0, top0, right0, bottom0, screen_width, screen_height, input_resolution[0].width, input_resolution[0].height) + place_rectangle(chain.input1.resample_effect, chain.input1.resize_effect, chain.input1.padding_effect, left1, top1, right1, bottom1, screen_width, screen_height, input_resolution[1].width, input_resolution[1].height) end function set_neutral_color(effect, color)