#include <utility>
#include "defs.h"
+#ifdef HAVE_CEF
#include "cef_capture.h"
+#endif
#include "ffmpeg_capture.h"
#include "flags.h"
#include "image_input.h"
#include "input_state.h"
#include "pbo_frame_allocator.h"
+#if !defined LUA_VERSION_NUM || LUA_VERSION_NUM==501
+
+// Compatibility shims for LuaJIT 2.0 (LuaJIT 2.1 implements the entire Lua 5.2 API).
+// Adapted from https://github.com/keplerproject/lua-compat-5.2/blob/master/c-api/compat-5.2.c
+// and licensed as follows:
+//
+// The MIT License (MIT)
+//
+// Copyright (c) 2013 Hisham Muhammad
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+/*
+** Adapted from Lua 5.2.0
+*/
+void luaL_setfuncs(lua_State *L, const luaL_Reg *l, int nup) {
+ luaL_checkstack(L, nup+1, "too many upvalues");
+ for (; l->name != NULL; l++) { /* fill the table with given functions */
+ int i;
+ lua_pushstring(L, l->name);
+ for (i = 0; i < nup; i++) /* copy upvalues to the top */
+ lua_pushvalue(L, -(nup + 1));
+ lua_pushcclosure(L, l->func, nup); /* closure with those upvalues */
+ lua_settable(L, -(nup + 3)); /* table must be below the upvalues, the name and the closure */
+ }
+ lua_pop(L, nup); /* remove upvalues */
+}
+
+void *luaL_testudata(lua_State *L, int i, const char *tname) {
+ void *p = lua_touserdata(L, i);
+ luaL_checkstack(L, 2, "not enough stack slots");
+ if (p == NULL || !lua_getmetatable(L, i))
+ return NULL;
+ else {
+ int res = 0;
+ luaL_getmetatable(L, tname);
+ res = lua_rawequal(L, -1, -2);
+ lua_pop(L, 2);
+ if (!res)
+ p = NULL;
+ }
+ return p;
+}
+
+#endif
+
class Mixer;
namespace movit {
extern Mixer *global_mixer;
+Theme *get_theme_updata(lua_State* L)
+{
+ luaL_checktype(L, lua_upvalueindex(1), LUA_TLIGHTUSERDATA);
+ return (Theme *)lua_touserdata(L, lua_upvalueindex(1));
+}
+
+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
return 1;
}
-Theme *get_theme_updata(lua_State* L)
-{
- luaL_checktype(L, lua_upvalueindex(1), LUA_TLIGHTUSERDATA);
- return (Theme *)lua_touserdata(L, lua_upvalueindex(1));
-}
-
Effect *get_effect(lua_State *L, int idx)
{
if (luaL_testudata(L, idx, "WhiteBalanceEffect") ||
bmusb::PixelFormat pixel_format = global_flags.ten_bit_input ? bmusb::PixelFormat_10BitYCbCr : bmusb::PixelFormat_8BitYCbCr;
// Needs to be nonowned to match add_video_input (see below).
- return wrap_lua_object_nonowned<LiveInputWrapper>(L, "LiveInputWrapper", theme, chain, pixel_format, override_bounce, deinterlace);
+ return wrap_lua_object_nonowned<LiveInputWrapper>(L, "LiveInputWrapper", theme, chain, pixel_format, override_bounce, deinterlace, /*user_connectable=*/true);
}
int EffectChain_add_video_input(lua_State* L)
// to also unregister the signal connection on __gc.)
int ret = wrap_lua_object_nonowned<LiveInputWrapper>(
L, "LiveInputWrapper", theme, chain, (*capture)->get_current_pixel_format(),
- /*override_bounce=*/false, deinterlace);
+ /*override_bounce=*/false, deinterlace, /*user_connectable=*/false);
if (ret == 1) {
Theme *theme = get_theme_updata(L);
LiveInputWrapper **live_input = (LiveInputWrapper **)lua_touserdata(L, -1);
- theme->register_video_signal_connection(*live_input, *capture);
+ theme->register_video_signal_connection(chain, *live_input, *capture);
}
return ret;
}
+#ifdef HAVE_CEF
int EffectChain_add_html_input(lua_State* L)
{
assert(lua_gettop(L) == 2);
// to also unregister the signal connection on __gc.)
int ret = wrap_lua_object_nonowned<LiveInputWrapper>(
L, "LiveInputWrapper", theme, chain, (*capture)->get_current_pixel_format(),
- /*override_bounce=*/false, /*deinterlace=*/false);
+ /*override_bounce=*/false, /*deinterlace=*/false, /*user_connectable=*/false);
if (ret == 1) {
Theme *theme = get_theme_updata(L);
LiveInputWrapper **live_input = (LiveInputWrapper **)lua_touserdata(L, -1);
- theme->register_html_signal_connection(*live_input, *capture);
+ theme->register_html_signal_connection(chain, *live_input, *capture);
}
return ret;
}
+#endif
int EffectChain_add_effect(lua_State* L)
{
assert(lua_gettop(L) == 2);
LiveInputWrapper **input = (LiveInputWrapper **)luaL_checkudata(L, 1, "LiveInputWrapper");
int signal_num = luaL_checknumber(L, 2);
- (*input)->connect_signal(signal_num);
+ 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);
+ }
return 0;
}
return 0;
}
+int VideoInput_disconnect(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ FFmpegCapture **video_input = (FFmpegCapture **)luaL_checkudata(L, 1, "VideoInput");
+ (*video_input)->disconnect();
+ return 0;
+}
+
int VideoInput_change_rate(lua_State* L)
{
assert(lua_gettop(L) == 2);
int HTMLInput_new(lua_State* L)
{
+#ifdef HAVE_CEF
assert(lua_gettop(L) == 1);
string url = checkstdstring(L, 1);
int ret = wrap_lua_object_nonowned<CEFCapture>(L, "HTMLInput", url, global_flags.width, global_flags.height);
theme->register_html_input(*capture);
}
return ret;
+#else
+ fprintf(stderr, "This version of Nageru has been compiled without CEF support.\n");
+ fprintf(stderr, "HTMLInput is not available.\n");
+ exit(1);
+#endif
}
+#ifdef HAVE_CEF
int HTMLInput_set_url(lua_State* L)
{
assert(lua_gettop(L) == 2);
return 0;
}
+int HTMLInput_resize(lua_State* L)
+{
+ assert(lua_gettop(L) == 3);
+ CEFCapture **video_input = (CEFCapture **)luaL_checkudata(L, 1, "HTMLInput");
+ unsigned width = lrint(luaL_checknumber(L, 2));
+ unsigned height = lrint(luaL_checknumber(L, 3));
+ (*video_input)->resize(width, height);
+ return 0;
+}
+
int HTMLInput_get_signal_num(lua_State* L)
{
assert(lua_gettop(L) == 1);
lua_pushnumber(L, -1 - (*video_input)->get_card_index());
return 1;
}
+#endif
int WhiteBalanceEffect_new(lua_State* L)
{
{ "__gc", EffectChain_gc },
{ "add_live_input", EffectChain_add_live_input },
{ "add_video_input", EffectChain_add_video_input },
+#ifdef HAVE_CEF
{ "add_html_input", EffectChain_add_html_input },
+#endif
{ "add_effect", EffectChain_add_effect },
{ "finalize", EffectChain_finalize },
{ NULL, NULL }
const luaL_Reg VideoInput_funcs[] = {
{ "new", VideoInput_new },
{ "rewind", VideoInput_rewind },
+ { "disconnect", VideoInput_disconnect },
{ "change_rate", VideoInput_change_rate },
{ "get_signal_num", VideoInput_get_signal_num },
{ NULL, NULL }
const luaL_Reg HTMLInput_funcs[] = {
{ "new", HTMLInput_new },
+#ifdef HAVE_CEF
{ "set_url", HTMLInput_set_url },
{ "reload", HTMLInput_reload },
{ "set_max_fps", HTMLInput_set_max_fps },
{ "execute_javascript_async", HTMLInput_execute_javascript_async },
+ { "resize", HTMLInput_resize },
{ "get_signal_num", HTMLInput_get_signal_num },
+#endif
{ NULL, NULL }
};
{ NULL, NULL }
};
+const luaL_Reg ThemeMenu_funcs[] = {
+ { "set", ThemeMenu_set },
+ { NULL, NULL }
+};
+
} // namespace
-LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bmusb::PixelFormat pixel_format, bool override_bounce, bool deinterlace)
+LiveInputWrapper::LiveInputWrapper(
+ Theme *theme,
+ EffectChain *chain,
+ bmusb::PixelFormat pixel_format,
+ bool override_bounce,
+ bool deinterlace,
+ bool user_connectable)
: theme(theme),
pixel_format(pixel_format),
- deinterlace(deinterlace)
+ deinterlace(deinterlace),
+ user_connectable(user_connectable)
{
ImageFormat inout_format;
inout_format.color_space = COLORSPACE_sRGB;
}
}
-void LiveInputWrapper::connect_signal(int signal_num)
+bool LiveInputWrapper::connect_signal(int signal_num)
{
+ if (!user_connectable) {
+ return false;
+ }
+
if (global_mixer == nullptr) {
// No data yet.
- return;
+ return true;
}
signal_num = theme->map_signal(signal_num);
connect_signal_raw(signal_num, *theme->input_state);
+ return true;
}
void LiveInputWrapper::connect_signal_raw(int signal_num, const InputState &input_state)
const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)first_frame.frame->userdata;
width = userdata->last_width[first_frame.field_number];
height = userdata->last_height[first_frame.field_number];
+ if (userdata->last_interlaced) {
+ height *= 2;
+ }
}
movit::YCbCrLumaCoefficients ycbcr_coefficients = input_state.ycbcr_coefficients[signal_num];
L = luaL_newstate();
luaL_openlibs(L);
- register_constants();
- 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("InputStateInfo", InputStateInfo_funcs);
-
- // Run script. Search through all directories until we find a file that will load
+ // Search through all directories until we find a file that will load
// (as in, does not return LUA_ERRFILE); then run it. We store load errors
// from all the attempts, and show them once we know we can't find any of them.
lua_settop(L, 0);
vector<string> errors;
bool success = false;
- for (size_t i = 0; i < search_dirs.size(); ++i) {
- string path = search_dirs[i] + "/" + filename;
+
+ vector<string> real_search_dirs;
+ if (!filename.empty() && filename[0] == '/') {
+ real_search_dirs.push_back("");
+ } else {
+ real_search_dirs = search_dirs;
+ }
+
+ string path;
+ int theme_code_ref;
+ for (const string &dir : real_search_dirs) {
+ if (dir.empty()) {
+ path = filename;
+ } else {
+ path = dir + "/" + filename;
+ }
int err = luaL_loadfile(L, path.c_str());
if (err == 0) {
- // Success; actually call the code.
- if (lua_pcall(L, 0, LUA_MULTRET, 0)) {
- fprintf(stderr, "Error when running %s: %s\n", path.c_str(), lua_tostring(L, -1));
- exit(1);
- }
+ // Save the theme for when we're actually going to run it
+ // (we need to set up the right environment below first,
+ // and we couldn't do that before, because we didn't know the
+ // path to put in Nageru.THEME_PATH).
+ theme_code_ref = luaL_ref(L, LUA_REGISTRYINDEX);
+ assert(lua_gettop(L) == 0);
+
success = true;
break;
}
}
assert(lua_gettop(L) == 0);
+ // Make sure the path exposed to the theme (as Nageru.THEME_PATH;
+ // can be useful for locating files when talking to CEF) is absolute.
+ // In a sense, it would be nice if realpath() had a mode not to
+ // resolve symlinks, but it doesn't, so we only call it if we don't
+ // already have an absolute path (which may leave ../ elements etc.).
+ if (path[0] == '/') {
+ theme_path = path;
+ } else {
+ char *absolute_theme_path = realpath(path.c_str(), nullptr);
+ theme_path = absolute_theme_path;
+ free(absolute_theme_path);
+ }
+
+ // Set up the API we provide.
+ register_constants();
+ 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("InputStateInfo", InputStateInfo_funcs);
+ register_class("ThemeMenu", ThemeMenu_funcs);
+
+ // Now actually run the theme to get everything set up.
+ lua_rawgeti(L, LUA_REGISTRYINDEX, theme_code_ref);
+ 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);
+ }
+ assert(lua_gettop(L) == 0);
+
// Ask it for the number of channels.
num_channels = call_num_channels(L);
}
void Theme::register_constants()
{
// Set Nageru.VIDEO_FORMAT_BGRA = bmusb::PixelFormat_8BitBGRA, etc.
- const vector<pair<string, int>> constants = {
+ const vector<pair<string, int>> num_constants = {
{ "VIDEO_FORMAT_BGRA", bmusb::PixelFormat_8BitBGRA },
{ "VIDEO_FORMAT_YCBCR", bmusb::PixelFormat_8BitYCbCrPlanar },
};
+ const vector<pair<string, string>> str_constants = {
+ { "THEME_PATH", theme_path },
+ };
lua_newtable(L); // t = {}
- for (const pair<string, int> &constant : constants) {
+ for (const pair<string, int> &constant : num_constants) {
lua_pushstring(L, constant.first.c_str());
lua_pushinteger(L, constant.second);
lua_settable(L, 1); // t[key] = value
}
+ for (const pair<string, string> &constant : str_constants) {
+ lua_pushstring(L, constant.first.c_str());
+ lua_pushstring(L, constant.second.c_str());
+ lua_settable(L, 1); // t[key] = value
+ }
lua_setglobal(L, "Nageru"); // Nageru = t
assert(lua_gettop(L) == 0);
exit(1);
}
- chain.chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain");
- if (chain.chain == nullptr) {
+ 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);
lua_pop(L, 2);
assert(lua_gettop(L) == 0);
- chain.setup_chain = [this, funcref, input_state]{
+ chain.setup_chain = [this, funcref, input_state, effect_chain]{
unique_lock<mutex> lock(m);
assert(this->input_state == nullptr);
if (lua_pcall(L, 0, 0, 0) != 0) {
fprintf(stderr, "error running chain setup callback: %s\n", lua_tostring(L, -1));
exit(1);
- }
+ }
assert(lua_gettop(L) == 0);
+ // The theme can't (or at least shouldn't!) call connect_signal() on
+ // each FFmpeg or CEF input, so we'll do it here.
+ if (video_signal_connections.count(effect_chain)) {
+ for (const VideoSignalConnection &conn : video_signal_connections[effect_chain]) {
+ conn.wrapper->connect_signal_raw(conn.source->get_card_index(), input_state);
+ }
+ }
+#ifdef HAVE_CEF
+ if (html_signal_connections.count(effect_chain)) {
+ for (const CEFSignalConnection &conn : html_signal_connections[effect_chain]) {
+ conn.wrapper->connect_signal_raw(conn.source->get_card_index(), input_state);
+ }
+ }
+#endif
+
this->input_state = nullptr;
};
}
assert(lua_gettop(L) == 0);
}
+
+int Theme::set_theme_menu(lua_State *L)
+{
+ for (const Theme::MenuEntry &entry : theme_menu) {
+ luaL_unref(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);
+ lua_pop(L, 1);
+
+ lua_rawgeti(L, i, 2);
+ luaL_checktype(L, -1, LUA_TFUNCTION);
+ int ref = luaL_ref(L, LUA_REGISTRYINDEX);
+
+ theme_menu.push_back(MenuEntry{ text, ref });
+ }
+ lua_pop(L, num_elements);
+ assert(lua_gettop(L) == 0);
+
+ if (theme_menu_callback != nullptr) {
+ theme_menu_callback();
+ }
+
+ return 0;
+}
+
+void Theme::theme_menu_entry_clicked(int lua_ref)
+{
+ unique_lock<mutex> 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);
+ }
+}
projects / nageru / blobdiff