X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=theme.lua;h=401cbd9b842d822d74d0fbbbd2f437e630e3e95e;hb=6ffaabac0a523617b686f40c154a25cb548cc561;hp=df9e9c7d85e5f993550226d977410645c07fb9a0;hpb=7dbde8f649c62301a91142e7fd1bf555a6389bfd;p=nageru diff --git a/theme.lua b/theme.lua index df9e9c7..401cbd9 100644 --- a/theme.lua +++ b/theme.lua @@ -7,20 +7,22 @@ -- where all the low-level details (such as texture formats) are handled by the -- C++ side and you generally just build chains. -local transition_start = -2.0 -local transition_end = -1.0 -local transition_type = 0 -local transition_src_signal = 0 -local transition_dst_signal = 0 - -local neutral_colors = { - {0.5, 0.5, 0.5}, -- Input 0. - {0.5, 0.5, 0.5} -- Input 1. +local state = { + transition_start = -2.0, + transition_end = -1.0, + transition_type = 0, + transition_src_signal = 0, + transition_dst_signal = 0, + + neutral_colors = { + {0.5, 0.5, 0.5}, -- Input 0. + {0.5, 0.5, 0.5} -- Input 1. + }, + + live_signal_num = 0, + preview_signal_num = 1 } -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 @@ -183,7 +185,7 @@ function make_simple_chain(input_deint, input_scale, hq) input:connect_signal(0) -- First input card. Can be changed whenever you want. local resample_effect, resize_effect - if scale then + if input_scale then if hq then resample_effect = chain:add_effect(ResampleEffect.new()) else @@ -268,8 +270,11 @@ end -- 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 + local res = last_resolution[signal_num] + if (not res) or not res.is_connected then + return "disconnected" + end + if res.height <= 0 then return "no signal" end if not res.has_signal then @@ -320,9 +325,11 @@ 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.) +-- Should return -1 if the channel does not correspond to a simple signal +-- (one connected to a capture card, or a video input). The information is used for +-- whether right-click on the channel should bring up a context menu or not, +-- typically containing an input selector, resolution menu etc. +-- -- 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) @@ -341,17 +348,17 @@ end -- "transparent" is allowed. -- Will never be called for live (0) or preview (1). function channel_color(channel) - if transition_type ~= NO_TRANSITION then - if channel_involved_in(channel, transition_src_signal) or - channel_involved_in(channel, transition_dst_signal) then + if state.transition_type ~= NO_TRANSITION then + if channel_involved_in(channel, state.transition_src_signal) or + channel_involved_in(channel, state.transition_dst_signal) then return "#f00" end else - if channel_involved_in(channel, live_signal_num) then + if channel_involved_in(channel, state.live_signal_num) then return "#f00" end end - if channel_involved_in(channel, preview_signal_num) then + if channel_involved_in(channel, state.preview_signal_num) then return "#0f0" end return "transparent" @@ -382,19 +389,19 @@ end -- The color is in linear light (not sRGB gamma). function set_wb(channel, red, green, blue) if is_plain_signal(channel - 2) then - neutral_colors[channel - 2 + 1] = { red, green, blue } + state.neutral_colors[channel - 2 + 1] = { red, green, blue } end end function finish_transitions(t) - if transition_type ~= NO_TRANSITION and t >= transition_end then - live_signal_num = transition_dst_signal - transition_type = NO_TRANSITION + if state.transition_type ~= NO_TRANSITION and t >= state.transition_end then + state.live_signal_num = state.transition_dst_signal + state.transition_type = NO_TRANSITION end end function in_transition(t) - return t >= transition_start and t <= transition_end + return t >= state.transition_start and t <= state.transition_end end -- API ENTRY POINT @@ -408,20 +415,20 @@ function get_transitions(t) finish_transitions(t) - if live_signal_num == preview_signal_num then + if state.live_signal_num == state.preview_signal_num then -- No transitions possible. return {} end - if (is_plain_signal(live_signal_num) or live_signal_num == STATIC_SIGNAL_NUM) and - (is_plain_signal(preview_signal_num) or preview_signal_num == STATIC_SIGNAL_NUM) then + if (is_plain_signal(state.live_signal_num) or state.live_signal_num == STATIC_SIGNAL_NUM) and + (is_plain_signal(state.preview_signal_num) or state.preview_signal_num == STATIC_SIGNAL_NUM) then return {"Cut", "", "Fade"} end -- Various zooms. - if live_signal_num == SBS_SIGNAL_NUM and is_plain_signal(preview_signal_num) then + if state.live_signal_num == SBS_SIGNAL_NUM and is_plain_signal(state.preview_signal_num) then return {"Cut", "Zoom in"} - elseif is_plain_signal(live_signal_num) and preview_signal_num == SBS_SIGNAL_NUM then + elseif is_plain_signal(state.live_signal_num) and state.preview_signal_num == SBS_SIGNAL_NUM then return {"Cut", "Zoom out"} end @@ -429,17 +436,17 @@ function get_transitions(t) end function swap_preview_live() - local temp = live_signal_num - live_signal_num = preview_signal_num - preview_signal_num = temp + local temp = state.live_signal_num + state.live_signal_num = state.preview_signal_num + state.preview_signal_num = temp end function start_transition(type_, t, duration) - transition_start = t - transition_end = t + duration - transition_type = type_ - transition_src_signal = live_signal_num - transition_dst_signal = preview_signal_num + state.transition_start = t + state.transition_end = t + duration + state.transition_type = type_ + state.transition_src_signal = state.live_signal_num + state.transition_dst_signal = state.preview_signal_num swap_preview_live() end @@ -450,7 +457,7 @@ function transition_clicked(num, t) -- Cut. if in_transition(t) then -- Ongoing transition; finish it immediately before the cut. - finish_transitions(transition_end) + finish_transitions(state.transition_end) end swap_preview_live() @@ -458,31 +465,31 @@ function transition_clicked(num, t) -- Zoom. finish_transitions(t) - if live_signal_num == preview_signal_num then + if state.live_signal_num == state.preview_signal_num then -- Nothing to do. return end - if is_plain_signal(live_signal_num) and is_plain_signal(preview_signal_num) then + if is_plain_signal(state.live_signal_num) and is_plain_signal(state.preview_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") + io.write("Cutting from " .. state.live_signal_num .. " to " .. state.live_signal_num .. "\n") swap_preview_live() return end - if (live_signal_num == SBS_SIGNAL_NUM and is_plain_signal(preview_signal_num)) or - (preview_signal_num == SBS_SIGNAL_NUM and is_plain_signal(live_signal_num)) then + if (state.live_signal_num == SBS_SIGNAL_NUM and is_plain_signal(state.preview_signal_num)) or + (state.preview_signal_num == SBS_SIGNAL_NUM and is_plain_signal(state.live_signal_num)) then start_transition(ZOOM_TRANSITION, t, 1.0) end elseif num == 2 then finish_transitions(t) -- Fade. - if (live_signal_num ~= preview_signal_num) and - (is_plain_signal(live_signal_num) or - live_signal_num == STATIC_SIGNAL_NUM) and - (is_plain_signal(preview_signal_num) or - preview_signal_num == STATIC_SIGNAL_NUM) then + if (state.live_signal_num ~= state.preview_signal_num) and + (is_plain_signal(state.live_signal_num) or + state.live_signal_num == STATIC_SIGNAL_NUM) and + (is_plain_signal(state.preview_signal_num) or + state.preview_signal_num == STATIC_SIGNAL_NUM) then start_transition(FADE_TRANSITION, t, 1.0) else -- Fades involving SBS are ignored (we have no chain for it). @@ -492,27 +499,27 @@ end -- API ENTRY POINT function channel_clicked(num) - preview_signal_num = num + state.preview_signal_num = num end -function get_fade_chain(signals, t, width, height, input_resolution) - local input0_type = get_input_type(signals, transition_src_signal) - local input0_scale = needs_scale(signals, transition_src_signal, width, height) - local input1_type = get_input_type(signals, transition_dst_signal) - local input1_scale = needs_scale(signals, transition_dst_signal, width, height) +function get_fade_chain(state, signals, t, width, height, input_resolution) + local input0_type = get_input_type(signals, state.transition_src_signal) + local input0_scale = needs_scale(signals, state.transition_src_signal, width, height) + local input1_type = get_input_type(signals, state.transition_dst_signal) + local input1_scale = needs_scale(signals, state.transition_dst_signal, width, height) local chain = fade_chains[input0_type][input0_scale][input1_type][input1_scale][true] - prepare = function() + local prepare = function() if input0_type == "live" or input0_type == "livedeint" then - chain.input0.input:connect_signal(transition_src_signal) - set_neutral_color_from_signal(chain.input0.wb_effect, transition_src_signal) + chain.input0.input:connect_signal(state.transition_src_signal) + set_neutral_color_from_signal(state, chain.input0.wb_effect, state.transition_src_signal) end set_scale_parameters_if_needed(chain.input0, width, height) if input1_type == "live" or input1_type == "livedeint" then - chain.input1.input:connect_signal(transition_dst_signal) - set_neutral_color_from_signal(chain.input1.wb_effect, transition_dst_signal) + chain.input1.input:connect_signal(state.transition_dst_signal) + set_neutral_color_from_signal(state, chain.input1.wb_effect, state.transition_dst_signal) end set_scale_parameters_if_needed(chain.input1, width, height) - local tt = calc_fade_progress(t, transition_start, transition_end) + local tt = calc_fade_progress(t, state.transition_start, state.transition_end) chain.mix_effect:set_float("strength_first", 1.0 - tt) chain.mix_effect:set_float("strength_second", tt) @@ -558,6 +565,7 @@ function get_chain(num, t, width, height, signals) width = signals:get_width(signal_num), height = signals:get_height(signal_num), interlaced = signals:get_interlaced(signal_num), + is_connected = signals:get_is_connected(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) @@ -578,36 +586,44 @@ function get_chain(num, t, width, height, signals) end last_resolution = input_resolution + -- Make a (semi-shallow) copy of the current state, so that the returned prepare function + -- is unaffected by state changes made by the UI before it is rendered. + local state_copy = {} + for key, value in pairs(state) do + state_copy[key] = value + end + state_copy.neutral_colors = { unpack(state.neutral_colors) } + if num == 0 then -- Live. finish_transitions(t) - if transition_type == ZOOM_TRANSITION then + if state.transition_type == ZOOM_TRANSITION then -- Transition in or out of SBS. local chain = get_sbs_chain(signals, t, width, height, input_resolution) - prepare = function() - prepare_sbs_chain(chain, calc_zoom_progress(t), transition_type, transition_src_signal, transition_dst_signal, width, height, input_resolution) + local prepare = function() + prepare_sbs_chain(state_copy, chain, calc_zoom_progress(state_copy, t), state_copy.transition_type, state_copy.transition_src_signal, state_copy.transition_dst_signal, width, height, input_resolution) end return chain.chain, prepare - elseif transition_type == NO_TRANSITION and live_signal_num == SBS_SIGNAL_NUM then + elseif state.transition_type == NO_TRANSITION and state.live_signal_num == SBS_SIGNAL_NUM then -- Static SBS view. local chain = get_sbs_chain(signals, t, width, height, input_resolution) - prepare = function() - prepare_sbs_chain(chain, 0.0, NO_TRANSITION, 0, SBS_SIGNAL_NUM, width, height, input_resolution) + local prepare = function() + prepare_sbs_chain(state_copy, chain, 0.0, NO_TRANSITION, 0, SBS_SIGNAL_NUM, width, height, input_resolution) end return chain.chain, prepare - elseif transition_type == FADE_TRANSITION then - return get_fade_chain(signals, t, width, height, input_resolution) - elseif is_plain_signal(live_signal_num) then - local input_type = get_input_type(signals, live_signal_num) - local input_scale = needs_scale(signals, live_signal_num, width, height) + elseif state.transition_type == FADE_TRANSITION then + return get_fade_chain(state_copy, signals, t, width, height, input_resolution) + elseif is_plain_signal(state.live_signal_num) then + local input_type = get_input_type(signals, state.live_signal_num) + local input_scale = needs_scale(signals, state.live_signal_num, width, height) local chain = simple_chains[input_type][input_scale][true] - prepare = function() - chain.input:connect_signal(live_signal_num) + local prepare = function() + chain.input:connect_signal(state_copy.live_signal_num) set_scale_parameters_if_needed(chain, width, height) - set_neutral_color_from_signal(chain.wb_effect, live_signal_num) + set_neutral_color_from_signal(state_copy, chain.wb_effect, state_copy.live_signal_num) end return chain.chain, prepare - elseif live_signal_num == STATIC_SIGNAL_NUM then -- Static picture. - prepare = function() + elseif state.live_signal_num == STATIC_SIGNAL_NUM then -- Static picture. + local prepare = function() end return static_chain_hq, prepare else @@ -615,7 +631,7 @@ function get_chain(num, t, width, height, signals) end end if num == 1 then -- Preview. - num = preview_signal_num + 2 + num = state.preview_signal_num + 2 end -- Individual preview inputs. @@ -624,10 +640,10 @@ function get_chain(num, t, width, height, signals) local input_type = get_input_type(signals, signal_num) local input_scale = needs_scale(signals, signal_num, width, height) local chain = simple_chains[input_type][input_scale][false] - prepare = function() + local prepare = function() chain.input:connect_signal(signal_num) set_scale_parameters_if_needed(chain, width, height) - set_neutral_color(chain.wb_effect, neutral_colors[signal_num + 1]) + set_neutral_color(chain.wb_effect, state_copy.neutral_colors[signal_num + 1]) end return chain.chain, prepare end @@ -635,13 +651,13 @@ function get_chain(num, t, width, height, signals) local input0_type = get_input_type(signals, INPUT0_SIGNAL_NUM) 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, NO_TRANSITION, 0, SBS_SIGNAL_NUM, width, height, input_resolution) + local prepare = function() + prepare_sbs_chain(state_copy, chain, 0.0, NO_TRANSITION, 0, SBS_SIGNAL_NUM, width, height, input_resolution) end return chain.chain, prepare end if num == STATIC_SIGNAL_NUM + 2 then - prepare = function() + local prepare = function() end return static_chain_lq, prepare end @@ -766,11 +782,11 @@ function pos_from_top_left(x, y, width, height, screen_width, screen_height) } end -function prepare_sbs_chain(chain, t, transition_type, src_signal, dst_signal, screen_width, screen_height, input_resolution) +function prepare_sbs_chain(state, chain, t, transition_type, src_signal, dst_signal, 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, neutral_colors[1]) - set_neutral_color(chain.input1.wb_effect, neutral_colors[2]) + set_neutral_color(chain.input0.wb_effect, state.neutral_colors[1]) + set_neutral_color(chain.input1.wb_effect, state.neutral_colors[2]) -- First input is positioned (16,48) from top-left. -- Second input is positioned (16,48) from the bottom-right. @@ -832,19 +848,19 @@ 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) +function set_neutral_color_from_signal(state, effect, signal) if is_plain_signal(signal) then - set_neutral_color(effect, neutral_colors[signal - INPUT0_SIGNAL_NUM + 1]) + set_neutral_color(effect, state.neutral_colors[signal - INPUT0_SIGNAL_NUM + 1]) end end -function calc_zoom_progress(t) - if t < transition_start then +function calc_zoom_progress(state, t) + if t < state.transition_start then return 0.0 - elseif t > transition_end then + elseif t > state.transition_end then return 1.0 else - local tt = (t - transition_start) / (transition_end - transition_start) + local tt = (t - state.transition_start) / (state.transition_end - state.transition_start) -- Smooth it a bit. return math.sin(tt * 3.14159265358 * 0.5) end