X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Ftheme.cpp;h=162c3bc5b7f5a90ba3fd54ed047e82abdb0d6daa;hb=f9024d141398e69e7b4011becd3ebbe37eaa1776;hp=d28f5b2501030b0911b342a4124b95b1538e98c2;hpb=aa6cef228bda3977763472d6bbc03b5a0302c866;p=nageru diff --git a/nageru/theme.cpp b/nageru/theme.cpp index d28f5b2..162c3bc 100644 --- a/nageru/theme.cpp +++ b/nageru/theme.cpp @@ -3,6 +3,7 @@ #include #include #include +#include #include #include #include @@ -36,7 +37,9 @@ #include "flags.h" #include "image_input.h" #include "input_state.h" +#include "lua_utils.h" #include "pbo_frame_allocator.h" +#include "scene.h" class Mixer; @@ -55,25 +58,26 @@ Theme *get_theme_updata(lua_State* L) return (Theme *)lua_touserdata(L, lua_upvalueindex(1)); } +void print_warning(lua_State* L, const char *format, ...) +{ + char buf[4096]; + va_list ap; + va_start(ap, format); + vsnprintf(buf, sizeof(buf), format, ap); + va_end(ap); + + lua_Debug ar; + lua_getstack(L, 1, &ar); + lua_getinfo(L, "nSl", &ar); + fprintf(stderr, "WARNING: %s:%d: %s", ar.source, ar.currentline, buf); +} + int ThemeMenu_set(lua_State *L) { Theme *theme = get_theme_updata(L); return theme->set_theme_menu(L); } -namespace { - -// Contains basically the same data as InputState, but does not hold on to -// a reference to the frames. This is important so that we can release them -// without having to wait for Lua's GC. -struct InputStateInfo { - InputStateInfo(const InputState& input_state); - - unsigned last_width[MAX_VIDEO_CARDS], last_height[MAX_VIDEO_CARDS]; - bool last_interlaced[MAX_VIDEO_CARDS], last_has_signal[MAX_VIDEO_CARDS], last_is_connected[MAX_VIDEO_CARDS]; - unsigned last_frame_rate_nom[MAX_VIDEO_CARDS], last_frame_rate_den[MAX_VIDEO_CARDS]; -}; - InputStateInfo::InputStateInfo(const InputState &input_state) { for (unsigned signal_num = 0; signal_num < MAX_VIDEO_CARDS; ++signal_num) { @@ -93,78 +97,85 @@ InputStateInfo::InputStateInfo(const InputState &input_state) last_is_connected[signal_num] = userdata->last_is_connected; last_frame_rate_nom[signal_num] = userdata->last_frame_rate_nom; last_frame_rate_den[signal_num] = userdata->last_frame_rate_den; + has_last_subtitle[signal_num] = userdata->has_last_subtitle; + last_subtitle[signal_num] = userdata->last_subtitle; } } -class LuaRefWithDeleter { +// An effect that does nothing. +class IdentityEffect : public Effect { public: - LuaRefWithDeleter(mutex *m, lua_State *L, int ref) : m(m), L(L), ref(ref) {} - ~LuaRefWithDeleter() { - unique_lock lock(*m); - luaL_unref(L, LUA_REGISTRYINDEX, ref); - } - int get() const { return ref; } - -private: - LuaRefWithDeleter(const LuaRefWithDeleter &) = delete; - - mutex *m; - lua_State *L; - int ref; + IdentityEffect() {} + string effect_type_id() const override { return "IdentityEffect"; } + string output_fragment_shader() override { return read_file("identity.frag"); } }; -template -int wrap_lua_object(lua_State* L, const char *class_name, Args&&... args) -{ - // Construct the C++ object and put it on the stack. - void *mem = lua_newuserdata(L, sizeof(T)); - new(mem) T(forward(args)...); - - // Look up the metatable named , and set it on the new object. - luaL_getmetatable(L, class_name); - lua_setmetatable(L, -2); - - return 1; +Effect *instantiate_effect(EffectChain *chain, EffectType effect_type) +{ + switch (effect_type) { + case IDENTITY_EFFECT: + return new IdentityEffect; + case WHITE_BALANCE_EFFECT: + case AUTO_WHITE_BALANCE_EFFECT: + return new WhiteBalanceEffect; + case RESAMPLE_EFFECT: + return new ResampleEffect; + case PADDING_EFFECT: + return new PaddingEffect; + case INTEGRAL_PADDING_EFFECT: + return new IntegralPaddingEffect; + case OVERLAY_EFFECT: + return new OverlayEffect; + case RESIZE_EFFECT: + return new ResizeEffect; + case MULTIPLY_EFFECT: + return new MultiplyEffect; + case MIX_EFFECT: + return new MixEffect; + case LIFT_GAMMA_GAIN_EFFECT: + return new LiftGammaGainEffect; + default: + fprintf(stderr, "Unhandled effect type %d\n", effect_type); + abort(); + } } -// Like wrap_lua_object, but the object is not owned by Lua; ie. it's not freed -// by Lua GC. This is typically the case for Effects, which are owned by EffectChain -// and expected to be destructed by it. The object will be of type T** instead of T* -// when exposed to Lua. -// -// Note that we currently leak if you allocate an Effect in this way and never call -// add_effect. We should see if there's a way to e.g. set __gc on it at construction time -// and then release that once add_effect() takes ownership. -template -int wrap_lua_object_nonowned(lua_State* L, const char *class_name, Args&&... args) -{ - // Construct the pointer ot the C++ object and put it on the stack. - T **obj = (T **)lua_newuserdata(L, sizeof(T *)); - *obj = new T(forward(args)...); +namespace { - // Look up the metatable named , and set it on the new object. - luaL_getmetatable(L, class_name); - lua_setmetatable(L, -2); +Effect *get_effect_from_blueprint(EffectChain *chain, lua_State *L, int idx) +{ + EffectBlueprint *blueprint = *(EffectBlueprint **)luaL_checkudata(L, idx, "EffectBlueprint"); + if (blueprint->effect != nullptr) { + luaL_error(L, "An effect can currently only be added to one chain.\n"); + } - return 1; -} + Effect *effect = instantiate_effect(chain, blueprint->effect_type); -Effect *get_effect(lua_State *L, int idx) -{ - if (luaL_testudata(L, idx, "WhiteBalanceEffect") || - luaL_testudata(L, idx, "ResampleEffect") || - luaL_testudata(L, idx, "PaddingEffect") || - luaL_testudata(L, idx, "IntegralPaddingEffect") || - luaL_testudata(L, idx, "OverlayEffect") || - luaL_testudata(L, idx, "ResizeEffect") || - luaL_testudata(L, idx, "MultiplyEffect") || - luaL_testudata(L, idx, "MixEffect") || - luaL_testudata(L, idx, "LiftGammaGainEffect") || - luaL_testudata(L, idx, "ImageInput")) { - return *(Effect **)lua_touserdata(L, idx); + // Set the parameters that were deferred earlier. + for (const auto &kv : blueprint->int_parameters) { + if (!effect->set_int(kv.first, kv.second)) { + luaL_error(L, "Effect refused set_int(\"%s\", %d) (invalid key?)", kv.first.c_str(), kv.second); + } } - luaL_error(L, "Error: Index #%d was not an Effect type\n", idx); - return nullptr; + for (const auto &kv : blueprint->float_parameters) { + if (!effect->set_float(kv.first, kv.second)) { + luaL_error(L, "Effect refused set_float(\"%s\", %f) (invalid key?)", kv.first.c_str(), kv.second); + } + } + for (const auto &kv : blueprint->vec3_parameters) { + if (!effect->set_vec3(kv.first, kv.second.data())) { + luaL_error(L, "Effect refused set_vec3(\"%s\", %f, %f, %f) (invalid key?)", kv.first.c_str(), + kv.second[0], kv.second[1], kv.second[2]); + } + } + for (const auto &kv : blueprint->vec4_parameters) { + if (!effect->set_vec4(kv.first, kv.second.data())) { + luaL_error(L, "Effect refused set_vec4(\"%s\", %f, %f, %f, %f) (invalid key?)", kv.first.c_str(), + kv.second[0], kv.second[1], kv.second[2], kv.second[3]); + } + } + blueprint->effect = effect; + return effect; } InputStateInfo *get_input_state_info(lua_State *L, int idx) @@ -176,6 +187,8 @@ InputStateInfo *get_input_state_info(lua_State *L, int idx) return nullptr; } +} // namespace + bool checkbool(lua_State* L, int idx) { luaL_checktype(L, idx, LUA_TBOOLEAN); @@ -189,6 +202,81 @@ string checkstdstring(lua_State *L, int index) return string(cstr, len); } +namespace { + +int Scene_new(lua_State* L) +{ + assert(lua_gettop(L) == 2); + Theme *theme = get_theme_updata(L); + int aspect_w = luaL_checknumber(L, 1); + int aspect_h = luaL_checknumber(L, 2); + + return wrap_lua_object(L, "Scene", theme, aspect_w, aspect_h); +} + +int Scene_gc(lua_State* L) +{ + assert(lua_gettop(L) == 1); + Scene *chain = (Scene *)luaL_checkudata(L, 1, "Scene"); + chain->~Scene(); + return 0; +} + +} // namespace + +void add_outputs_and_finalize(EffectChain *chain, bool is_main_chain) +{ + // Add outputs as needed. + // NOTE: If you change any details about the output format, you will need to + // also update what's given to the muxer (HTTPD::Mux constructor) and + // what's put in the H.264 stream (sps_rbsp()). + ImageFormat inout_format; + inout_format.color_space = COLORSPACE_REC_709; + + // Output gamma is tricky. We should output Rec. 709 for TV, except that + // we expect to run with web players and others that don't really care and + // just output with no conversion. So that means we'll need to output sRGB, + // even though H.264 has no setting for that (we use “unspecified”). + inout_format.gamma_curve = GAMMA_sRGB; + + if (is_main_chain) { + YCbCrFormat output_ycbcr_format; + // We actually output 4:2:0 and/or 4:2:2 in the end, but chroma subsampling + // happens in a pass not run by Movit (see ChromaSubsampler::subsample_chroma()). + output_ycbcr_format.chroma_subsampling_x = 1; + output_ycbcr_format.chroma_subsampling_y = 1; + + // This will be overridden if HDMI/SDI output is in force. + if (global_flags.ycbcr_rec709_coefficients) { + output_ycbcr_format.luma_coefficients = YCBCR_REC_709; + } else { + output_ycbcr_format.luma_coefficients = YCBCR_REC_601; + } + + output_ycbcr_format.full_range = false; + output_ycbcr_format.num_levels = 1 << global_flags.x264_bit_depth; + + GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE; + + chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR, type); + + // If we're using zerocopy video encoding (so the destination + // Y texture is owned by VA-API and will be unavailable for + // display), add a copy, where we'll only be using the Y component. + if (global_flags.use_zerocopy) { + chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_INTERLEAVED, type); // Add a copy where we'll only be using the Y component. + } + chain->set_dither_bits(global_flags.x264_bit_depth > 8 ? 16 : 8); + chain->set_output_origin(OUTPUT_ORIGIN_TOP_LEFT); + } else { + chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED); + } + + chain->finalize(); +} + +namespace { + int EffectChain_new(lua_State* L) { assert(lua_gettop(L) == 2); @@ -273,7 +361,12 @@ int EffectChain_add_effect(lua_State* L) EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain"); // TODO: Better error reporting. - Effect *effect = get_effect(L, 2); + Effect *effect; + if (luaL_testudata(L, 2, "ImageInput")) { + effect = *(ImageInput **)luaL_checkudata(L, 2, "ImageInput"); + } else { + effect = get_effect_from_blueprint(chain, L, 2); + } if (lua_gettop(L) == 2) { if (effect->num_inputs() == 0) { chain->add_input((Input *)effect); @@ -286,8 +379,13 @@ int EffectChain_add_effect(lua_State* L) if (luaL_testudata(L, idx, "LiveInputWrapper")) { LiveInputWrapper **input = (LiveInputWrapper **)lua_touserdata(L, idx); inputs.push_back((*input)->get_effect()); + } else if (luaL_testudata(L, idx, "ImageInput")) { + ImageInput *image = *(ImageInput **)luaL_checkudata(L, idx, "ImageInput"); + inputs.push_back(image); } else { - inputs.push_back(get_effect(L, idx)); + EffectBlueprint *blueprint = *(EffectBlueprint **)luaL_checkudata(L, idx, "EffectBlueprint"); + assert(blueprint->effect != nullptr); // Parent must be added to the graph. + inputs.push_back(blueprint->effect); } } chain->add_effect(effect, inputs); @@ -307,54 +405,7 @@ int EffectChain_finalize(lua_State* L) assert(lua_gettop(L) == 2); EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain"); bool is_main_chain = checkbool(L, 2); - - // Add outputs as needed. - // NOTE: If you change any details about the output format, you will need to - // also update what's given to the muxer (HTTPD::Mux constructor) and - // what's put in the H.264 stream (sps_rbsp()). - ImageFormat inout_format; - inout_format.color_space = COLORSPACE_REC_709; - - // Output gamma is tricky. We should output Rec. 709 for TV, except that - // we expect to run with web players and others that don't really care and - // just output with no conversion. So that means we'll need to output sRGB, - // even though H.264 has no setting for that (we use “unspecified”). - inout_format.gamma_curve = GAMMA_sRGB; - - if (is_main_chain) { - YCbCrFormat output_ycbcr_format; - // We actually output 4:2:0 and/or 4:2:2 in the end, but chroma subsampling - // happens in a pass not run by Movit (see ChromaSubsampler::subsample_chroma()). - output_ycbcr_format.chroma_subsampling_x = 1; - output_ycbcr_format.chroma_subsampling_y = 1; - - // This will be overridden if HDMI/SDI output is in force. - if (global_flags.ycbcr_rec709_coefficients) { - output_ycbcr_format.luma_coefficients = YCBCR_REC_709; - } else { - output_ycbcr_format.luma_coefficients = YCBCR_REC_601; - } - - output_ycbcr_format.full_range = false; - output_ycbcr_format.num_levels = 1 << global_flags.x264_bit_depth; - - GLenum type = global_flags.x264_bit_depth > 8 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE; - - chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_SPLIT_Y_AND_CBCR, type); - - // If we're using zerocopy video encoding (so the destination - // Y texture is owned by VA-API and will be unavailable for - // display), add a copy, where we'll only be using the Y component. - if (global_flags.use_zerocopy) { - chain->add_ycbcr_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED, output_ycbcr_format, YCBCR_OUTPUT_INTERLEAVED, type); // Add a copy where we'll only be using the Y component. - } - chain->set_dither_bits(global_flags.x264_bit_depth > 8 ? 16 : 8); - chain->set_output_origin(OUTPUT_ORIGIN_TOP_LEFT); - } else { - chain->add_output(inout_format, OUTPUT_ALPHA_FORMAT_POSTMULTIPLIED); - } - - chain->finalize(); + add_outputs_and_finalize(chain, is_main_chain); return 0; } @@ -365,11 +416,7 @@ int LiveInputWrapper_connect_signal(lua_State* L) int signal_num = luaL_checknumber(L, 2); bool success = (*input)->connect_signal(signal_num); if (!success) { - lua_Debug ar; - lua_getstack(L, 1, &ar); - lua_getinfo(L, "nSl", &ar); - fprintf(stderr, "ERROR: %s:%d: Calling connect_signal() on a video or HTML input. Ignoring.\n", - ar.source, ar.currentline); + print_warning(L, "Calling connect_signal() on a video or HTML input. Ignoring.\n"); } return 0; } @@ -388,8 +435,7 @@ int VideoInput_new(lua_State* L) int pixel_format = luaL_checknumber(L, 2); if (pixel_format != bmusb::PixelFormat_8BitYCbCrPlanar && pixel_format != bmusb::PixelFormat_8BitBGRA) { - fprintf(stderr, "WARNING: Invalid enum %d used for video format, choosing Y'CbCr.\n", - pixel_format); + print_warning(L, "Invalid enum %d used for video format, choosing Y'CbCr.\n", pixel_format); pixel_format = bmusb::PixelFormat_8BitYCbCrPlanar; } int ret = wrap_lua_object_nonowned(L, "VideoInput", filename, global_flags.width, global_flags.height); @@ -451,7 +497,7 @@ int HTMLInput_new(lua_State* L) #else fprintf(stderr, "This version of Nageru has been compiled without CEF support.\n"); fprintf(stderr, "HTMLInput is not available.\n"); - exit(1); + abort(); #endif } @@ -510,64 +556,71 @@ int HTMLInput_get_signal_num(lua_State* L) } #endif +int IdentityEffect_new(lua_State* L) +{ + assert(lua_gettop(L) == 0); + return wrap_lua_object_nonowned(L, "EffectBlueprint", IDENTITY_EFFECT); +} + int WhiteBalanceEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "WhiteBalanceEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", WHITE_BALANCE_EFFECT); } int ResampleEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "ResampleEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", RESAMPLE_EFFECT); } int PaddingEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "PaddingEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", PADDING_EFFECT); } int IntegralPaddingEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "IntegralPaddingEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", INTEGRAL_PADDING_EFFECT); } int OverlayEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "OverlayEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", OVERLAY_EFFECT); } int ResizeEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "ResizeEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", RESIZE_EFFECT); } int MultiplyEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "MultiplyEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", MULTIPLY_EFFECT); } int MixEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "MixEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", MIX_EFFECT); } int LiftGammaGainEffect_new(lua_State* L) { assert(lua_gettop(L) == 0); - return wrap_lua_object_nonowned(L, "LiftGammaGainEffect"); + return wrap_lua_object_nonowned(L, "EffectBlueprint", LIFT_GAMMA_GAIN_EFFECT); } int InputStateInfo_get_width(lua_State* L) { assert(lua_gettop(L) == 2); InputStateInfo *input_state_info = get_input_state_info(L, 1); + Theme *theme = get_theme_updata(L); int signal_num = theme->map_signal(luaL_checknumber(L, 2)); lua_pushnumber(L, input_state_info->last_width[signal_num]); @@ -584,6 +637,20 @@ int InputStateInfo_get_height(lua_State* L) return 1; } +int InputStateInfo_get_frame_height(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputStateInfo *input_state_info = get_input_state_info(L, 1); + Theme *theme = get_theme_updata(L); + int signal_num = theme->map_signal(luaL_checknumber(L, 2)); + unsigned height = input_state_info->last_height[signal_num]; + if (input_state_info->last_interlaced[signal_num]) { + height *= 2; + } + lua_pushnumber(L, height); + return 1; +} + int InputStateInfo_get_interlaced(lua_State* L) { assert(lua_gettop(L) == 2); @@ -634,63 +701,197 @@ int InputStateInfo_get_frame_rate_den(lua_State* L) return 1; } -int Effect_set_float(lua_State *L) +int InputStateInfo_get_last_subtitle(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputStateInfo *input_state_info = get_input_state_info(L, 1); + Theme *theme = get_theme_updata(L); + int signal_num = theme->map_signal(luaL_checknumber(L, 2)); + if (!input_state_info->has_last_subtitle[signal_num]) { + lua_pushnil(L); + } else { + lua_pushstring(L, input_state_info->last_subtitle[signal_num].c_str()); + } + return 1; +} + +namespace { + +// Helper function to write e.g. “60” or “59.94”. +string format_frame_rate(int nom, int den) +{ + char buf[256]; + if (nom % den == 0) { + snprintf(buf, sizeof(buf), "%d", nom / den); + } else { + snprintf(buf, sizeof(buf), "%.2f", double(nom) / den); + } + return buf; +} + +// Helper function to write e.g. “720p60”. +string get_human_readable_resolution(const InputStateInfo *input_state_info, int signal_num) +{ + char buf[256]; + if (input_state_info->last_interlaced[signal_num]) { + snprintf(buf, sizeof(buf), "%di", input_state_info->last_height[signal_num] * 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). + return buf + format_frame_rate(input_state_info->last_frame_rate_nom[signal_num] * 2, + input_state_info->last_frame_rate_den[signal_num]); + } else { + snprintf(buf, sizeof(buf), "%dp", input_state_info->last_height[signal_num]); + return buf + format_frame_rate(input_state_info->last_frame_rate_nom[signal_num], + input_state_info->last_frame_rate_den[signal_num]); + } +} + +} // namespace + +int InputStateInfo_get_human_readable_resolution(lua_State* L) +{ + assert(lua_gettop(L) == 2); + InputStateInfo *input_state_info = get_input_state_info(L, 1); + Theme *theme = get_theme_updata(L); + int signal_num = theme->map_signal(luaL_checknumber(L, 2)); + + string str; + if (!input_state_info->last_is_connected[signal_num]) { + str = "disconnected"; + } else if (input_state_info->last_height[signal_num] <= 0) { + str = "no signal"; + } else if (!input_state_info->last_has_signal[signal_num]) { + if (input_state_info->last_height[signal_num] == 525) { + // Special mode for the USB3 cards. + str = "no signal"; + } else { + str = get_human_readable_resolution(input_state_info, signal_num) + ", no signal"; + } + } else { + str = get_human_readable_resolution(input_state_info, signal_num); + } + + lua_pushstring(L, str.c_str()); + return 1; +} + + +int EffectBlueprint_set_int(lua_State *L) { assert(lua_gettop(L) == 3); - Effect *effect = (Effect *)get_effect(L, 1); + EffectBlueprint *blueprint = *(EffectBlueprint **)luaL_checkudata(L, 1, "EffectBlueprint"); string key = checkstdstring(L, 2); float value = luaL_checknumber(L, 3); - if (!effect->set_float(key, value)) { - luaL_error(L, "Effect refused set_float(\"%s\", %d) (invalid key?)", key.c_str(), int(value)); + if (blueprint->effect != nullptr) { + if (!blueprint->effect->set_int(key, value)) { + luaL_error(L, "Effect refused set_int(\"%s\", %d) (invalid key?)", key.c_str(), int(value)); + } + } else { + // TODO: check validity already here, if possible? + blueprint->int_parameters[key] = value; } return 0; } -int Effect_set_int(lua_State *L) +int EffectBlueprint_set_float(lua_State *L) { assert(lua_gettop(L) == 3); - Effect *effect = (Effect *)get_effect(L, 1); + EffectBlueprint *blueprint = *(EffectBlueprint **)luaL_checkudata(L, 1, "EffectBlueprint"); string key = checkstdstring(L, 2); float value = luaL_checknumber(L, 3); - if (!effect->set_int(key, value)) { - luaL_error(L, "Effect refused set_int(\"%s\", %d) (invalid key?)", key.c_str(), int(value)); + if (blueprint->effect != nullptr) { + if (!blueprint->effect->set_float(key, value)) { + luaL_error(L, "Effect refused set_float(\"%s\", %d) (invalid key?)", key.c_str(), int(value)); + } + } else { + // TODO: check validity already here, if possible? + blueprint->float_parameters[key] = value; } return 0; } -int Effect_set_vec3(lua_State *L) +int EffectBlueprint_set_vec3(lua_State *L) { assert(lua_gettop(L) == 5); - Effect *effect = (Effect *)get_effect(L, 1); + EffectBlueprint *blueprint = *(EffectBlueprint **)luaL_checkudata(L, 1, "EffectBlueprint"); string key = checkstdstring(L, 2); - float v[3]; + array v; v[0] = luaL_checknumber(L, 3); v[1] = luaL_checknumber(L, 4); v[2] = luaL_checknumber(L, 5); - if (!effect->set_vec3(key, v)) { - luaL_error(L, "Effect refused set_vec3(\"%s\", %f, %f, %f) (invalid key?)", key.c_str(), - v[0], v[1], v[2]); + + if (blueprint->effect != nullptr) { + if (!blueprint->effect->set_vec3(key, v.data())) { + luaL_error(L, "Effect refused set_vec3(\"%s\", %f, %f, %f) (invalid key?)", key.c_str(), + v[0], v[1], v[2]); + } + } else { + // TODO: check validity already here, if possible? + blueprint->vec3_parameters[key] = v; } + return 0; } -int Effect_set_vec4(lua_State *L) +int EffectBlueprint_set_vec4(lua_State *L) { assert(lua_gettop(L) == 6); - Effect *effect = (Effect *)get_effect(L, 1); + EffectBlueprint *blueprint = *(EffectBlueprint **)luaL_checkudata(L, 1, "EffectBlueprint"); string key = checkstdstring(L, 2); - float v[4]; + array v; v[0] = luaL_checknumber(L, 3); v[1] = luaL_checknumber(L, 4); v[2] = luaL_checknumber(L, 5); v[3] = luaL_checknumber(L, 6); - if (!effect->set_vec4(key, v)) { - luaL_error(L, "Effect refused set_vec4(\"%s\", %f, %f, %f, %f) (invalid key?)", key.c_str(), - v[0], v[1], v[2], v[3]); + if (blueprint->effect != nullptr) { + if (!blueprint->effect->set_vec4(key, v.data())) { + luaL_error(L, "Effect refused set_vec4(\"%s\", %f, %f, %f, %f) (invalid key?)", key.c_str(), + v[0], v[1], v[2], v[3]); + } + } else { + // TODO: check validity already here, if possible? + blueprint->vec4_parameters[key] = v; } return 0; } +const luaL_Reg Scene_funcs[] = { + { "new", Scene_new }, + { "__gc", Scene_gc }, + { "add_input", Scene::add_input }, + { "add_auto_white_balance", Scene::add_auto_white_balance }, + { "add_effect", Scene::add_effect }, + { "add_optional_effect", Scene::add_optional_effect }, + { "finalize", Scene::finalize }, + { NULL, NULL } +}; + +const luaL_Reg Block_funcs[] = { + { "display", Block_display }, + { "choose", Block_choose }, + { "enable", Block_enable }, + { "enable_if", Block_enable_if }, + { "disable", Block_disable }, + { "always_disable_if_disabled", Block_always_disable_if_disabled }, + { "promise_to_disable_if_enabled", Block_promise_to_disable_if_enabled }, + { "set_int", Block_set_int }, + { "set_float", Block_set_float }, + { "set_vec3", Block_set_vec3 }, + { "set_vec4", Block_set_vec4 }, + { NULL, NULL } +}; + +const luaL_Reg EffectBlueprint_funcs[] = { + // NOTE: No new() function; that's for the individual effects. + { "set_int", EffectBlueprint_set_int }, + { "set_float", EffectBlueprint_set_float }, + { "set_vec3", EffectBlueprint_set_vec3 }, + { "set_vec4", EffectBlueprint_set_vec4 }, + { NULL, NULL } +}; + const luaL_Reg EffectChain_funcs[] = { { "new", EffectChain_new }, { "__gc", EffectChain_gc }, @@ -711,10 +912,6 @@ const luaL_Reg LiveInputWrapper_funcs[] = { const luaL_Reg ImageInput_funcs[] = { { "new", ImageInput_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; @@ -740,95 +937,74 @@ const luaL_Reg HTMLInput_funcs[] = { { NULL, NULL } }; +// Effects. +// All of these are solely for new(); the returned metatable will be that of +// EffectBlueprint, and Effect (returned from add_effect()) is its own type. + +const luaL_Reg IdentityEffect_funcs[] = { + { "new", IdentityEffect_new }, + { NULL, NULL } +}; + const luaL_Reg WhiteBalanceEffect_funcs[] = { { "new", WhiteBalanceEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg ResampleEffect_funcs[] = { { "new", ResampleEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg PaddingEffect_funcs[] = { { "new", PaddingEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg IntegralPaddingEffect_funcs[] = { { "new", IntegralPaddingEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg OverlayEffect_funcs[] = { { "new", OverlayEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg ResizeEffect_funcs[] = { { "new", ResizeEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg MultiplyEffect_funcs[] = { { "new", MultiplyEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg MixEffect_funcs[] = { { "new", MixEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; const luaL_Reg LiftGammaGainEffect_funcs[] = { { "new", LiftGammaGainEffect_new }, - { "set_float", Effect_set_float }, - { "set_int", Effect_set_int }, - { "set_vec3", Effect_set_vec3 }, - { "set_vec4", Effect_set_vec4 }, { NULL, NULL } }; +// End of effects. + const luaL_Reg InputStateInfo_funcs[] = { { "get_width", InputStateInfo_get_width }, { "get_height", InputStateInfo_get_height }, + { "get_frame_width", InputStateInfo_get_width }, // Same as get_width(). + { "get_frame_height", InputStateInfo_get_frame_height }, { "get_interlaced", InputStateInfo_get_interlaced }, { "get_has_signal", InputStateInfo_get_has_signal }, { "get_is_connected", InputStateInfo_get_is_connected }, { "get_frame_rate_nom", InputStateInfo_get_frame_rate_nom }, { "get_frame_rate_den", InputStateInfo_get_frame_rate_den }, + { "get_last_subtitle", InputStateInfo_get_last_subtitle }, + { "get_human_readable_resolution", InputStateInfo_get_human_readable_resolution }, { NULL, NULL } }; @@ -882,11 +1058,7 @@ LiveInputWrapper::LiveInputWrapper( for (unsigned i = 0; i < num_inputs; ++i) { // We upload our textures ourselves, and Movit swaps // R and B in the shader if we specify BGRA, so lie and say RGBA. - if (global_flags.can_disable_srgb_decoder) { - rgba_inputs.push_back(new sRGBSwitchingFlatInput(inout_format, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, GL_UNSIGNED_BYTE, global_flags.width, global_flags.height)); - } else { - rgba_inputs.push_back(new NonsRGBCapableFlatInput(inout_format, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, GL_UNSIGNED_BYTE, global_flags.width, global_flags.height)); - } + rgba_inputs.push_back(new sRGBSwitchingFlatInput(inout_format, FORMAT_RGBA_POSTMULTIPLIED_ALPHA, GL_UNSIGNED_BYTE, global_flags.width, global_flags.height)); chain->add_input(rgba_inputs.back()); } @@ -1060,7 +1232,8 @@ int call_num_channels(lua_State *L) if (lua_pcall(L, 0, 1, 0) != 0) { fprintf(stderr, "error running function `num_channels': %s\n", lua_tostring(L, -1)); - exit(1); + fprintf(stderr, "Try Nageru.set_num_channels(...) at the start of the script instead.\n"); + abort(); } int num_channels = luaL_checknumber(L, 1); @@ -1071,9 +1244,64 @@ int call_num_channels(lua_State *L) } // namespace +int Nageru_set_channel_name(lua_State *L) +{ + // NOTE: m is already locked. + Theme *theme = get_theme_updata(L); + unsigned channel = luaL_checknumber(L, 1); + const string text = checkstdstring(L, 2); + theme->channel_names[channel] = text; + lua_pop(L, 2); + return 0; +} + +int Nageru_set_num_channels(lua_State *L) +{ + // NOTE: m is already locked. + Theme *theme = get_theme_updata(L); + if (theme->startup_finished) { + luaL_error(L, "set_num_channels() can only be called at startup."); + } + theme->num_channels = luaL_checknumber(L, 1); + lua_pop(L, 1); + return 0; +} + +int Nageru_set_channel_signal(lua_State *L) +{ + // NOTE: m is already locked. + Theme *theme = get_theme_updata(L); + if (theme->startup_finished) { + luaL_error(L, "set_channel_signal() can only be called at startup."); + } + unsigned channel = luaL_checknumber(L, 1); + int signal = luaL_checknumber(L, 2); + theme->channel_signals[channel] = signal; + lua_pop(L, 2); + return 0; +} + +int Nageru_set_supports_wb(lua_State *L) +{ + // NOTE: m is already locked. + Theme *theme = get_theme_updata(L); + if (theme->startup_finished) { + luaL_error(L, "set_supports_wb() can only be called at startup."); + } + unsigned channel = luaL_checknumber(L, 1); + bool supports_wb = checkbool(L, 2); + theme->channel_supports_wb[channel] = supports_wb; + lua_pop(L, 2); + return 0; +} + Theme::Theme(const string &filename, const vector &search_dirs, ResourcePool *resource_pool, unsigned num_cards) : resource_pool(resource_pool), num_cards(num_cards), signal_to_card_mapping(global_flags.default_stream_mapping) { + // Defaults. + channel_names[0] = "Live"; + channel_names[1] = "Preview"; + L = luaL_newstate(); luaL_openlibs(L); @@ -1123,7 +1351,7 @@ Theme::Theme(const string &filename, const vector &search_dirs, Resource for (const string &error : errors) { fprintf(stderr, "%s\n", error.c_str()); } - exit(1); + abort(); } assert(lua_gettop(L) == 0); @@ -1141,21 +1369,25 @@ Theme::Theme(const string &filename, const vector &search_dirs, Resource } // Set up the API we provide. - register_constants(); + register_globals(); + register_class("Scene", Scene_funcs); + register_class("Block", Block_funcs); + register_class("EffectBlueprint", EffectBlueprint_funcs); register_class("EffectChain", EffectChain_funcs); register_class("LiveInputWrapper", LiveInputWrapper_funcs); register_class("ImageInput", ImageInput_funcs); register_class("VideoInput", VideoInput_funcs); register_class("HTMLInput", HTMLInput_funcs); - register_class("WhiteBalanceEffect", WhiteBalanceEffect_funcs); - register_class("ResampleEffect", ResampleEffect_funcs); - register_class("PaddingEffect", PaddingEffect_funcs); - register_class("IntegralPaddingEffect", IntegralPaddingEffect_funcs); - register_class("OverlayEffect", OverlayEffect_funcs); - register_class("ResizeEffect", ResizeEffect_funcs); - register_class("MultiplyEffect", MultiplyEffect_funcs); - register_class("MixEffect", MixEffect_funcs); - register_class("LiftGammaGainEffect", LiftGammaGainEffect_funcs); + register_class("IdentityEffect", IdentityEffect_funcs, IDENTITY_EFFECT); + register_class("WhiteBalanceEffect", WhiteBalanceEffect_funcs, WHITE_BALANCE_EFFECT); + register_class("ResampleEffect", ResampleEffect_funcs, RESAMPLE_EFFECT); + register_class("PaddingEffect", PaddingEffect_funcs, PADDING_EFFECT); + register_class("IntegralPaddingEffect", IntegralPaddingEffect_funcs, INTEGRAL_PADDING_EFFECT); + register_class("OverlayEffect", OverlayEffect_funcs, OVERLAY_EFFECT); + register_class("ResizeEffect", ResizeEffect_funcs, RESIZE_EFFECT); + register_class("MultiplyEffect", MultiplyEffect_funcs, MULTIPLY_EFFECT); + register_class("MixEffect", MixEffect_funcs, MIX_EFFECT); + register_class("LiftGammaGainEffect", LiftGammaGainEffect_funcs, LIFT_GAMMA_GAIN_EFFECT); register_class("InputStateInfo", InputStateInfo_funcs); register_class("ThemeMenu", ThemeMenu_funcs); @@ -1164,25 +1396,31 @@ Theme::Theme(const string &filename, const vector &search_dirs, Resource luaL_unref(L, LUA_REGISTRYINDEX, theme_code_ref); if (lua_pcall(L, 0, 0, 0)) { fprintf(stderr, "Error when running %s: %s\n", path.c_str(), lua_tostring(L, -1)); - exit(1); + abort(); } assert(lua_gettop(L) == 0); - // Ask it for the number of channels. - num_channels = call_num_channels(L); + if (num_channels == -1) { + // Ask it for the number of channels. + num_channels = call_num_channels(L); + } + startup_finished = true; } Theme::~Theme() { + theme_menu.reset(); lua_close(L); } -void Theme::register_constants() +void Theme::register_globals() { // Set Nageru.VIDEO_FORMAT_BGRA = bmusb::PixelFormat_8BitBGRA, etc. const vector> num_constants = { { "VIDEO_FORMAT_BGRA", bmusb::PixelFormat_8BitBGRA }, { "VIDEO_FORMAT_YCBCR", bmusb::PixelFormat_8BitYCbCrPlanar }, + { "CHECKABLE", MenuEntry::CHECKABLE }, + { "CHECKED", MenuEntry::CHECKED }, }; const vector> str_constants = { { "THEME_PATH", theme_path }, @@ -1201,11 +1439,21 @@ void Theme::register_constants() lua_settable(L, 1); // t[key] = value } + const luaL_Reg Nageru_funcs[] = { + { "set_channel_name", Nageru_set_channel_name }, + { "set_num_channels", Nageru_set_num_channels }, + { "set_channel_signal", Nageru_set_channel_signal }, + { "set_supports_wb", Nageru_set_supports_wb }, + { NULL, NULL } + }; + lua_pushlightuserdata(L, this); + luaL_setfuncs(L, Nageru_funcs, 1); // for (name,f in funcs) { mt[name] = f, with upvalue {theme} } + lua_setglobal(L, "Nageru"); // Nageru = t assert(lua_gettop(L) == 0); } -void Theme::register_class(const char *class_name, const luaL_Reg *funcs) +void Theme::register_class(const char *class_name, const luaL_Reg *funcs, EffectType effect_type) { assert(lua_gettop(L) == 0); luaL_newmetatable(L, class_name); // mt = {} @@ -1213,46 +1461,28 @@ void Theme::register_class(const char *class_name, const luaL_Reg *funcs) luaL_setfuncs(L, funcs, 1); // for (name,f in funcs) { mt[name] = f, with upvalue {theme} } lua_pushvalue(L, -1); lua_setfield(L, -2, "__index"); // mt.__index = mt + if (effect_type != NO_EFFECT_TYPE) { + lua_pushnumber(L, effect_type); + lua_setfield(L, -2, "__effect_type_id"); // mt.__effect_type_id = effect_type + } lua_setglobal(L, class_name); // ClassName = mt assert(lua_gettop(L) == 0); } -Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned height, const InputState &input_state) +Theme::Chain Theme::get_chain_from_effect_chain(EffectChain *effect_chain, unsigned num, const InputState &input_state) { - Chain chain; - - unique_lock lock(m); - assert(lua_gettop(L) == 0); - lua_getglobal(L, "get_chain"); /* function to be called */ - lua_pushnumber(L, num); - lua_pushnumber(L, t); - lua_pushnumber(L, width); - lua_pushnumber(L, height); - wrap_lua_object(L, "InputStateInfo", input_state); - - if (lua_pcall(L, 5, 2, 0) != 0) { - fprintf(stderr, "error running function `get_chain': %s\n", lua_tostring(L, -1)); - exit(1); - } - - EffectChain *effect_chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain"); - if (effect_chain == nullptr) { - fprintf(stderr, "get_chain() for chain number %d did not return an EffectChain\n", - num); - exit(1); - } - chain.chain = effect_chain; if (!lua_isfunction(L, -1)) { fprintf(stderr, "Argument #-1 should be a function\n"); - exit(1); + abort(); } lua_pushvalue(L, -1); shared_ptr funcref(new LuaRefWithDeleter(&m, L, luaL_ref(L, LUA_REGISTRYINDEX))); lua_pop(L, 2); - assert(lua_gettop(L) == 0); + Chain chain; + chain.chain = effect_chain; chain.setup_chain = [this, funcref, input_state, effect_chain]{ - unique_lock lock(m); + lock_guard lock(m); assert(this->input_state == nullptr); this->input_state = &input_state; @@ -1261,8 +1491,8 @@ Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned he lua_rawgeti(L, LUA_REGISTRYINDEX, funcref->get()); if (lua_pcall(L, 0, 0, 0) != 0) { fprintf(stderr, "error running chain setup callback: %s\n", lua_tostring(L, -1)); - exit(1); - } + abort(); + } assert(lua_gettop(L) == 0); // The theme can't (or at least shouldn't!) call connect_signal() on @@ -1282,6 +1512,53 @@ Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned he this->input_state = nullptr; }; + return chain; +} + +Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned height, const InputState &input_state) +{ + const char *func_name = "get_scene"; // For error reporting. + Chain chain; + + lock_guard lock(m); + assert(lua_gettop(L) == 0); + lua_getglobal(L, "get_scene"); /* function to be called */ + if (lua_isnil(L, -1)) { + // Try the pre-1.9.0 name for compatibility. + lua_pop(L, 1); + lua_getglobal(L, "get_chain"); + func_name = "get_chain"; + } + lua_pushnumber(L, num); + lua_pushnumber(L, t); + lua_pushnumber(L, width); + lua_pushnumber(L, height); + wrap_lua_object(L, "InputStateInfo", input_state); + + if (lua_pcall(L, 5, LUA_MULTRET, 0) != 0) { + fprintf(stderr, "error running function “%s”: %s\n", func_name, lua_tostring(L, -1)); + abort(); + } + + if (luaL_testudata(L, -1, "Scene") != nullptr) { + if (lua_gettop(L) != 1) { + luaL_error(L, "%s() for chain number %d returned an Scene, but also other items", func_name); + } + Scene *auto_effect_chain = (Scene *)luaL_testudata(L, -1, "Scene"); + auto chain_and_setup = auto_effect_chain->get_chain(this, L, num, input_state); + chain.chain = chain_and_setup.first; + chain.setup_chain = move(chain_and_setup.second); + } else if (luaL_testudata(L, -2, "EffectChain") != nullptr) { + // Old-style (pre-Nageru 1.9.0) return of a single chain and prepare function. + if (lua_gettop(L) != 2) { + luaL_error(L, "%s() for chain number %d returned an EffectChain, but needs to also return a prepare function (or use Scene)", func_name); + } + EffectChain *effect_chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain"); + chain = get_chain_from_effect_chain(effect_chain, num, input_state); + } else { + luaL_error(L, "%s() for chain number %d did not return an EffectChain or Scene\n", func_name, num); + } + assert(lua_gettop(L) == 0); // TODO: Can we do better, e.g. by running setup_chain() and seeing what it references? // Actually, setup_chain does maybe hold all the references we need now anyway? @@ -1297,17 +1574,34 @@ Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned he string Theme::get_channel_name(unsigned channel) { - unique_lock lock(m); + lock_guard lock(m); + + // We never ask the legacy channel_name() about live and preview. + // The defaults are set in our constructor. + if (channel == 0 || channel == 1) { + return channel_names[channel]; + } + lua_getglobal(L, "channel_name"); + if (lua_isnil(L, -1)) { + lua_pop(L, 1); + if (channel_names.count(channel)) { + return channel_names[channel]; + } else { + return "(no title)"; + } + } + lua_pushnumber(L, channel); if (lua_pcall(L, 1, 1, 0) != 0) { fprintf(stderr, "error running function `channel_name': %s\n", lua_tostring(L, -1)); - exit(1); + abort(); } const char *ret = lua_tostring(L, -1); if (ret == nullptr) { fprintf(stderr, "function `channel_name' returned nil for channel %d\n", channel); - exit(1); + fprintf(stderr, "Try Nageru.set_channel_name(channel, name) at the start of the script instead.\n"); + abort(); } string retstr = ret; @@ -1318,12 +1612,22 @@ string Theme::get_channel_name(unsigned channel) int Theme::get_channel_signal(unsigned channel) { - unique_lock lock(m); + lock_guard lock(m); lua_getglobal(L, "channel_signal"); + if (lua_isnil(L, -1)) { + lua_pop(L, 1); + if (channel_signals.count(channel)) { + return channel_signals[channel]; + } else { + return -1; + } + } + lua_pushnumber(L, channel); if (lua_pcall(L, 1, 1, 0) != 0) { fprintf(stderr, "error running function `channel_signal': %s\n", lua_tostring(L, -1)); - exit(1); + fprintf(stderr, "Try Nageru.set_channel_signal(channel, signal) at the start of the script instead.\n"); + abort(); } int ret = luaL_checknumber(L, 1); @@ -1334,18 +1638,18 @@ int Theme::get_channel_signal(unsigned channel) std::string Theme::get_channel_color(unsigned channel) { - unique_lock lock(m); + lock_guard lock(m); lua_getglobal(L, "channel_color"); lua_pushnumber(L, channel); if (lua_pcall(L, 1, 1, 0) != 0) { fprintf(stderr, "error running function `channel_color': %s\n", lua_tostring(L, -1)); - exit(1); + abort(); } const char *ret = lua_tostring(L, -1); if (ret == nullptr) { fprintf(stderr, "function `channel_color' returned nil for channel %d\n", channel); - exit(1); + abort(); } string retstr = ret; @@ -1356,12 +1660,22 @@ std::string Theme::get_channel_color(unsigned channel) bool Theme::get_supports_set_wb(unsigned channel) { - unique_lock lock(m); + lock_guard lock(m); lua_getglobal(L, "supports_set_wb"); + if (lua_isnil(L, -1)) { + lua_pop(L, 1); + if (channel_supports_wb.count(channel)) { + return channel_supports_wb[channel]; + } else { + return false; + } + } + lua_pushnumber(L, channel); if (lua_pcall(L, 1, 1, 0) != 0) { fprintf(stderr, "error running function `supports_set_wb': %s\n", lua_tostring(L, -1)); - exit(1); + fprintf(stderr, "Try Nageru.set_supports_wb(channel, bool) at the start of the script instead.\n"); + abort(); } bool ret = checkbool(L, -1); @@ -1370,30 +1684,68 @@ bool Theme::get_supports_set_wb(unsigned channel) return ret; } -void Theme::set_wb(unsigned channel, double r, double g, double b) +void Theme::set_wb(unsigned channel, float r, float g, float b) +{ + int signal = get_channel_signal(channel); + + lock_guard lock(m); + if (signal != -1) { + white_balance_for_signal[signal] = RGBTriplet{ r, g, b }; + } + + call_lua_wb_callback(channel, r, g, b); +} + +void Theme::set_wb_for_signal(int signal, float r, float g, float b) +{ + lock_guard lock(m); + white_balance_for_signal[signal] = RGBTriplet{ r, g, b }; + + for (const auto &channel_and_signal : channel_signals) { + if (channel_and_signal.second == signal) { + call_lua_wb_callback(channel_and_signal.first, r, g, b); + } + } +} + +void Theme::call_lua_wb_callback(unsigned channel, float r, float g, float b) { - unique_lock lock(m); lua_getglobal(L, "set_wb"); + if (lua_isnil(L, -1)) { + // The function doesn't exist, to just ignore. We've stored the white balance, + // and most likely, it will be picked up by auto white balance instead. + lua_pop(L, 1); + return; + } lua_pushnumber(L, channel); lua_pushnumber(L, r); lua_pushnumber(L, g); lua_pushnumber(L, b); if (lua_pcall(L, 4, 0, 0) != 0) { fprintf(stderr, "error running function `set_wb': %s\n", lua_tostring(L, -1)); - exit(1); + abort(); } assert(lua_gettop(L) == 0); } +RGBTriplet Theme::get_white_balance_for_signal(int signal) +{ + if (white_balance_for_signal.count(signal)) { + return white_balance_for_signal[signal]; + } else { + return RGBTriplet{ 1.0, 1.0, 1.0 }; + } +} + vector Theme::get_transition_names(float t) { - unique_lock lock(m); + lock_guard lock(m); lua_getglobal(L, "get_transitions"); lua_pushnumber(L, t); if (lua_pcall(L, 1, 1, 0) != 0) { fprintf(stderr, "error running function `get_transitions': %s\n", lua_tostring(L, -1)); - exit(1); + abort(); } vector ret; @@ -1405,7 +1757,7 @@ vector Theme::get_transition_names(float t) lua_pop(L, 1); assert(lua_gettop(L) == 0); return ret; -} +} int Theme::map_signal(int signal_num) { @@ -1414,7 +1766,7 @@ int Theme::map_signal(int signal_num) return -1 - signal_num; } - unique_lock lock(map_m); + lock_guard lock(map_m); if (signal_to_card_mapping.count(signal_num)) { return signal_to_card_mapping[signal_num]; } @@ -1427,14 +1779,14 @@ int Theme::map_signal(int signal_num) ++card_index; } if (signal_num >= int(num_cards - 1)) { - fprintf(stderr, "WARNING: Theme asked for input %d, but we only have %u input card(s) (card %d is busy with output).\n", + print_warning(L, "Theme asked for input %d, but we only have %u input card(s) (card %d is busy with output).\n", signal_num, num_cards - 1, global_flags.output_card); fprintf(stderr, "Mapping to card %d instead.\n", card_index); } } else { card_index = signal_num % num_cards; if (signal_num >= int(num_cards)) { - fprintf(stderr, "WARNING: Theme asked for input %d, but we only have %u card(s).\n", signal_num, num_cards); + print_warning(L, "Theme asked for input %d, but we only have %u card(s).\n", signal_num, num_cards); fprintf(stderr, "Mapping to card %d instead.\n", card_index); } } @@ -1444,57 +1796,110 @@ int Theme::map_signal(int signal_num) void Theme::set_signal_mapping(int signal_num, int card_num) { - unique_lock lock(map_m); + lock_guard lock(map_m); assert(card_num < int(num_cards)); signal_to_card_mapping[signal_num] = card_num; } void Theme::transition_clicked(int transition_num, float t) { - unique_lock lock(m); + lock_guard lock(m); lua_getglobal(L, "transition_clicked"); lua_pushnumber(L, transition_num); lua_pushnumber(L, t); if (lua_pcall(L, 2, 0, 0) != 0) { fprintf(stderr, "error running function `transition_clicked': %s\n", lua_tostring(L, -1)); - exit(1); + abort(); } assert(lua_gettop(L) == 0); } void Theme::channel_clicked(int preview_num) { - unique_lock lock(m); + lock_guard lock(m); lua_getglobal(L, "channel_clicked"); lua_pushnumber(L, preview_num); if (lua_pcall(L, 1, 0, 0) != 0) { fprintf(stderr, "error running function `channel_clicked': %s\n", lua_tostring(L, -1)); - exit(1); + abort(); } assert(lua_gettop(L) == 0); } -int Theme::set_theme_menu(lua_State *L) +template +void destroy(T &ref) +{ + ref.~T(); +} + +Theme::MenuEntry::~MenuEntry() { - for (const Theme::MenuEntry &entry : theme_menu) { - luaL_unref(L, LUA_REGISTRYINDEX, entry.lua_ref); + if (is_submenu) { + destroy(submenu); + } else { + luaL_unref(entry.L, LUA_REGISTRYINDEX, entry.lua_ref); } - theme_menu.clear(); +} - int num_elements = lua_gettop(L); - for (int i = 1; i <= num_elements; ++i) { - lua_rawgeti(L, i, 1); - const string text = checkstdstring(L, -1); +namespace { + +vector> create_recursive_theme_menu(lua_State *L); + +unique_ptr create_theme_menu_entry(lua_State *L, int index) +{ + unique_ptr entry; + + lua_rawgeti(L, index, 1); + const string text = checkstdstring(L, -1); + lua_pop(L, 1); + + unsigned flags = 0; + if (lua_objlen(L, -1) > 2) { + lua_rawgeti(L, -1, 3); + flags = luaL_checknumber(L, -1); lua_pop(L, 1); + } - lua_rawgeti(L, i, 2); + lua_rawgeti(L, index, 2); + if (lua_istable(L, -1)) { + vector> submenu = create_recursive_theme_menu(L); + entry.reset(new Theme::MenuEntry{ text, move(submenu) }); + lua_pop(L, 1); + } else { luaL_checktype(L, -1, LUA_TFUNCTION); int ref = luaL_ref(L, LUA_REGISTRYINDEX); + entry.reset(new Theme::MenuEntry{ text, L, ref, flags }); + } + return entry; +} + +vector> create_recursive_theme_menu(lua_State *L) +{ + vector> menu; + size_t num_elements = lua_objlen(L, -1); + for (size_t i = 1; i <= num_elements; ++i) { + lua_rawgeti(L, -1, i); + menu.emplace_back(create_theme_menu_entry(L, -1)); + lua_pop(L, 1); + } + return menu; +} + +} // namespace + +int Theme::set_theme_menu(lua_State *L) +{ + theme_menu.reset(); - theme_menu.push_back(MenuEntry{ text, ref }); + vector> root_menu; + int num_elements = lua_gettop(L); + for (int i = 1; i <= num_elements; ++i) { + root_menu.emplace_back(create_theme_menu_entry(L, i)); } + theme_menu.reset(new MenuEntry("", move(root_menu))); + lua_pop(L, num_elements); assert(lua_gettop(L) == 0); @@ -1507,10 +1912,31 @@ int Theme::set_theme_menu(lua_State *L) void Theme::theme_menu_entry_clicked(int lua_ref) { - unique_lock lock(m); + lock_guard lock(m); lua_rawgeti(L, LUA_REGISTRYINDEX, lua_ref); if (lua_pcall(L, 0, 0, 0) != 0) { fprintf(stderr, "error running menu callback: %s\n", lua_tostring(L, -1)); - exit(1); + abort(); + } +} + +string Theme::format_status_line(const string &disk_space_left_text, double file_length_seconds) +{ + lock_guard lock(m); + lua_getglobal(L, "format_status_line"); + if (lua_isnil(L, -1)) { + lua_pop(L, 1); + return disk_space_left_text; + } + + lua_pushstring(L, disk_space_left_text.c_str()); + lua_pushnumber(L, file_length_seconds); + if (lua_pcall(L, 2, 1, 0) != 0) { + fprintf(stderr, "error running function format_status_line(): %s\n", lua_tostring(L, -1)); + abort(); } + string text = checkstdstring(L, 1); + lua_pop(L, 1); + assert(lua_gettop(L) == 0); + return text; }