-#include <stdio.h>
-#include <lua.h>
-#include <lualib.h>
-#include <lauxlib.h>
-#include <new>
-#include <utility>
+#include "theme.h"
+#include <assert.h>
+#include <bmusb/bmusb.h>
+#include <epoxy/gl.h>
+#include <lauxlib.h>
+#include <lua.hpp>
+#include <movit/effect.h>
#include <movit/effect_chain.h>
-#include <movit/ycbcr_input.h>
-#include <movit/white_balance_effect.h>
-#include <movit/resample_effect.h>
-#include <movit/padding_effect.h>
+#include <movit/image_format.h>
+#include <movit/mix_effect.h>
+#include <movit/multiply_effect.h>
#include <movit/overlay_effect.h>
+#include <movit/padding_effect.h>
+#include <movit/resample_effect.h>
#include <movit/resize_effect.h>
-#include <movit/mix_effect.h>
+#include <movit/util.h>
+#include <movit/white_balance_effect.h>
+#include <movit/ycbcr.h>
+#include <movit/ycbcr_input.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <cstddef>
+#include <memory>
+#include <new>
+#include <utility>
-#include "theme.h"
+#include "defs.h"
+#include "deinterlace_effect.h"
+#include "flags.h"
+#include "image_input.h"
+#include "input.h"
+#include "input_state.h"
+#include "pbo_frame_allocator.h"
+
+class Mixer;
-#define WIDTH 1280 // FIXME
-#define HEIGHT 720 // FIXME
+namespace movit {
+class ResourcePool;
+} // namespace movit
using namespace std;
using namespace movit;
+extern Mixer *global_mixer;
+
namespace {
-vector<LiveInputWrapper *> live_inputs;
+// 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) {
+ BufferedFrame frame = input_state.buffered_frames[signal_num][0];
+ if (frame.frame == nullptr) {
+ last_width[signal_num] = last_height[signal_num] = 0;
+ last_interlaced[signal_num] = false;
+ last_has_signal[signal_num] = false;
+ last_is_connected[signal_num] = false;
+ continue;
+ }
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+ last_width[signal_num] = userdata->last_width[frame.field_number];
+ last_height[signal_num] = userdata->last_height[frame.field_number];
+ last_interlaced[signal_num] = userdata->last_interlaced;
+ last_has_signal[signal_num] = userdata->last_has_signal;
+ 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;
+ }
+}
+
+class LuaRefWithDeleter {
+public:
+ LuaRefWithDeleter(mutex *m, lua_State *L, int ref) : m(m), L(L), ref(ref) {}
+ ~LuaRefWithDeleter() {
+ unique_lock<mutex> 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;
+};
template<class T, class... Args>
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(std::forward<Args>(args)...);
+ new(mem) T(forward<Args>(args)...);
+
+ // Look up the metatable named <class_name>, and set it on the new object.
+ luaL_getmetatable(L, class_name);
+ lua_setmetatable(L, -2);
+
+ return 1;
+}
+
+// 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<class T, class... Args>
+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>(args)...);
// Look up the metatable named <class_name>, and set it on the new object.
luaL_getmetatable(L, class_name);
luaL_testudata(L, idx, "IntegralPaddingEffect") ||
luaL_testudata(L, idx, "OverlayEffect") ||
luaL_testudata(L, idx, "ResizeEffect") ||
- luaL_testudata(L, idx, "MixEffect")) {
- return (Effect *)lua_touserdata(L, idx);
+ luaL_testudata(L, idx, "MultiplyEffect") ||
+ luaL_testudata(L, idx, "MixEffect") ||
+ luaL_testudata(L, idx, "ImageInput")) {
+ return *(Effect **)lua_touserdata(L, idx);
}
luaL_error(L, "Error: Index #%d was not an Effect type\n", idx);
return nullptr;
}
+InputStateInfo *get_input_state_info(lua_State *L, int idx)
+{
+ if (luaL_testudata(L, idx, "InputStateInfo")) {
+ return (InputStateInfo *)lua_touserdata(L, idx);
+ }
+ luaL_error(L, "Error: Index #%d was not InputStateInfo\n", idx);
+ return nullptr;
+}
+
bool checkbool(lua_State* L, int idx)
{
luaL_checktype(L, idx, LUA_TBOOLEAN);
return lua_toboolean(L, idx);
}
+string checkstdstring(lua_State *L, int index)
+{
+ size_t len;
+ const char* cstr = lua_tolstring(L, index, &len);
+ return string(cstr, len);
+}
+
int EffectChain_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<EffectChain>(L, "EffectChain", aspect_w, aspect_h);
+ return wrap_lua_object<EffectChain>(L, "EffectChain", aspect_w, aspect_h, theme->get_resource_pool());
+}
+
+int EffectChain_gc(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain");
+ chain->~EffectChain();
+ return 0;
}
int EffectChain_add_live_input(lua_State* L)
{
- assert(lua_gettop(L) == 2);
+ assert(lua_gettop(L) == 3);
Theme *theme = get_theme_updata(L);
EffectChain *chain = (EffectChain *)luaL_checkudata(L, 1, "EffectChain");
bool override_bounce = checkbool(L, 2);
- return wrap_lua_object<LiveInputWrapper>(L, "LiveInputWrapper", theme, chain, override_bounce);
+ bool deinterlace = checkbool(L, 3);
+ return wrap_lua_object<LiveInputWrapper>(L, "LiveInputWrapper", theme, chain, override_bounce, deinterlace);
}
int EffectChain_add_effect(lua_State* L)
// TODO: Better error reporting.
Effect *effect = get_effect(L, 2);
if (lua_gettop(L) == 2) {
- chain->add_effect(effect);
+ if (effect->num_inputs() == 0) {
+ chain->add_input((Input *)effect);
+ } else {
+ chain->add_effect(effect);
+ }
} else {
vector<Effect *> inputs;
for (int idx = 3; idx <= lua_gettop(L); ++idx) {
if (luaL_testudata(L, idx, "LiveInputWrapper")) {
LiveInputWrapper *input = (LiveInputWrapper *)lua_touserdata(L, idx);
- inputs.push_back(input->get_input());
+ inputs.push_back(input->get_effect());
} else {
inputs.push_back(get_effect(L, idx));
}
return 0;
}
+int ImageInput_new(lua_State* L)
+{
+ assert(lua_gettop(L) == 1);
+ string filename = checkstdstring(L, 1);
+ return wrap_lua_object_nonowned<ImageInput>(L, "ImageInput", filename);
+}
+
int WhiteBalanceEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<WhiteBalanceEffect>(L, "WhiteBalanceEffect");
+ return wrap_lua_object_nonowned<WhiteBalanceEffect>(L, "WhiteBalanceEffect");
}
int ResampleEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<ResampleEffect>(L, "ResampleEffect");
+ return wrap_lua_object_nonowned<ResampleEffect>(L, "ResampleEffect");
}
int PaddingEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<PaddingEffect>(L, "PaddingEffect");
+ return wrap_lua_object
_nonowned<PaddingEffect>(L, "PaddingEffect");
}
int IntegralPaddingEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<IntegralPaddingEffect>(L, "IntegralPaddingEffect");
+ return wrap_lua_object_nonowned<IntegralPaddingEffect>(L, "IntegralPaddingEffect");
}
int OverlayEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<OverlayEffect>(L, "OverlayEffect");
+ return wrap_lua_object_nonowned<OverlayEffect>(L, "OverlayEffect");
}
int ResizeEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<ResizeEffect>(L, "ResizeEffect");
+ return wrap_lua_object_nonowned<ResizeEffect>(L, "ResizeEffect");
+}
+
+int MultiplyEffect_new(lua_State* L)
+{
+ assert(lua_gettop(L) == 0);
+ return wrap_lua_object_nonowned<MultiplyEffect>(L, "MultiplyEffect");
}
int MixEffect_new(lua_State* L)
{
assert(lua_gettop(L) == 0);
- return wrap_lua_object<MixEffect>(L, "MixEffect");
+ return wrap_lua_object_nonowned<MixEffect>(L, "MixEffect");
+}
+
+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]);
+ return 1;
+}
+
+int InputStateInfo_get_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));
+ lua_pushnumber(L, input_state_info->last_height[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_interlaced(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_pushboolean(L, input_state_info->last_interlaced[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_has_signal(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_pushboolean(L, input_state_info->last_has_signal[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_is_connected(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_pushboolean(L, input_state_info->last_is_connected[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_frame_rate_nom(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_frame_rate_nom[signal_num]);
+ return 1;
+}
+
+int InputStateInfo_get_frame_rate_den(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_frame_rate_den[signal_num]);
+ return 1;
}
int Effect_set_float(lua_State *L)
{
assert(lua_gettop(L) == 3);
Effect *effect = (Effect *)get_effect(L, 1);
- size_t len;
- const char* cstr = lua_tolstring(L, 2, &len);
- std::string key(cstr, len);
+ 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?)", cstr, int(value));
+ luaL_error(L, "Effect refused set_float(\"%s\", %d) (invalid key?)", key.c_str(), int(value));
}
return 0;
}
{
assert(lua_gettop(L) == 3);
Effect *effect = (Effect *)get_effect(L, 1);
- size_t len;
- const char* cstr = lua_tolstring(L, 2, &len);
- std::string key(cstr, len);
+ 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?)", cstr, int(value));
+ luaL_error(L, "Effect refused set_int(\"%s\", %d) (invalid key?)", key.c_str(), int(value));
+ }
+ return 0;
+}
+
+int Effect_set_vec3(lua_State *L)
+{
+ assert(lua_gettop(L) == 5);
+ Effect *effect = (Effect *)get_effect(L, 1);
+ string key = checkstdstring(L, 2);
+ float v[3];
+ 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]);
}
return 0;
}
{
assert(lua_gettop(L) == 6);
Effect *effect = (Effect *)get_effect(L, 1);
- size_t len;
- const char* cstr = lua_tolstring(L, 2, &len);
- std::string key(cstr, len);
+ string key = checkstdstring(L, 2);
float v[4];
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?)", cstr,
+ 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]);
}
return 0;
const luaL_Reg EffectChain_funcs[] = {
{ "new", EffectChain_new },
+ { "__gc", EffectChain_gc },
{ "add_live_input", EffectChain_add_live_input },
{ "add_effect", EffectChain_add_effect },
{ "finalize", EffectChain_finalize },
{ NULL, NULL }
};
+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 }
+};
+
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 }
};
{ "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 }
};
{ "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 }
};
{ "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 }
};
{ "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 }
};
{ "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 }
};
{ "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 InputStateInfo_funcs[] = {
+ { "get_width", InputStateInfo_get_width },
+ { "get_height", InputStateInfo_get_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 },
+ { NULL, NULL }
+};
+
} // namespace
-LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool override_bounce)
- : theme(theme)
+LiveInputWrapper::LiveInputWrapper(Theme *theme, EffectChain *chain, bool override_bounce, bool deinterlace)
+ : theme(theme),
+ deinterlace(deinterlace)
{
ImageFormat inout_format;
inout_format.color_space = COLORSPACE_sRGB;
input_ycbcr_format.luma_coefficients = YCBCR_REC_709;
input_ycbcr_format.full_range = false;
- if (override_bounce) {
- input = new NonBouncingYCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
+ unsigned num_inputs;
+ if (deinterlace) {
+ deinterlace_effect = new movit::DeinterlaceEffect();
+
+ // As per the comments in deinterlace_effect.h, we turn this off.
+ // The most likely interlaced input for us is either a camera
+ // (where it's fine to turn it off) or a laptop (where it _should_
+ // be turned off).
+ CHECK(deinterlace_effect->set_int("enable_spatial_interlacing_check", 0));
+
+ num_inputs = deinterlace_effect->num_inputs();
+ assert(num_inputs == FRAME_HISTORY_LENGTH);
} else {
- input = new YCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR);
+ num_inputs = 1;
+ }
+ for (unsigned i = 0; i < num_inputs; ++i) {
+ if (override_bounce) {
+ inputs.push_back(new NonBouncingYCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR));
+ } else {
+ inputs.push_back(new YCbCrInput(inout_format, input_ycbcr_format, WIDTH, HEIGHT, YCBCR_INPUT_SPLIT_Y_AND_CBCR));
+ }
+ chain->add_input(inputs.back());
+ }
+
+ if (deinterlace) {
+ vector<Effect *> reverse_inputs(inputs.rbegin(), inputs.rend());
+ chain->add_effect(deinterlace_effect, reverse_inputs);
}
- chain->add_input(input);
}
void LiveInputWrapper::connect_signal(int signal_num)
{
- theme->connect_signal(input, signal_num);
+ if (global_mixer == nullptr) {
+ // No data yet.
+ return;
+ }
+
+ signal_num = theme->map_signal(signal_num);
+
+ BufferedFrame first_frame = theme->input_state->buffered_frames[signal_num][0];
+ if (first_frame.frame == nullptr) {
+ // No data yet.
+ return;
+ }
+ unsigned width, height;
+ {
+ 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];
+ }
+
+ BufferedFrame last_good_frame = first_frame;
+ for (unsigned i = 0; i < inputs.size(); ++i) {
+ BufferedFrame frame = theme->input_state->buffered_frames[signal_num][i];
+ if (frame.frame == nullptr) {
+ // Not enough data; reuse last frame (well, field).
+ // This is suboptimal, but we have nothing better.
+ frame = last_good_frame;
+ }
+ const PBOFrameAllocator::Userdata *userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+
+ if (userdata->last_width[frame.field_number] != width ||
+ userdata->last_height[frame.field_number] != height) {
+ // Resolution changed; reuse last frame/field.
+ frame = last_good_frame;
+ userdata = (const PBOFrameAllocator::Userdata *)frame.frame->userdata;
+ }
+
+ inputs[i]->set_texture_num(0, userdata->tex_y[frame.field_number]);
+ inputs[i]->set_texture_num(1, userdata->tex_cbcr[frame.field_number]);
+ inputs[i]->set_width(userdata->last_width[frame.field_number]);
+ inputs[i]->set_height(userdata->last_height[frame.field_number]);
+
+ last_good_frame = frame;
+ }
+
+ if (deinterlace) {
+ BufferedFrame frame = theme->input_state->buffered_frames[signal_num][0];
+ CHECK(deinterlace_effect->set_int("current_field_position", frame.field_number));
+ }
}
-Theme::Theme(const char *filename, ResourcePool *resource_pool, unsigned num_cards)
- : resource_pool(resource_pool), num_cards(num_cards)
+namespace {
+
+int call_num_channels(lua_State *L)
+{
+ lua_getglobal(L, "num_channels");
+
+ if (lua_pcall(L, 0, 1, 0) != 0) {
+ fprintf(stderr, "error running function `num_channels': %s\n", lua_tostring(L, -1));
+ exit(1);
+ }
+
+ int num_channels = luaL_checknumber(L, 1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return num_channels;
+}
+
+} // namespace
+
+Theme::Theme(const string &filename, const vector<string> &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)
{
L = luaL_newstate();
luaL_openlibs(L);
register_class("EffectChain", EffectChain_funcs);
register_class("LiveInputWrapper", LiveInputWrapper_funcs);
+ register_class("ImageInput", ImageInput_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.
+ // Run script. 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);
- if (luaL_dofile(L, filename)) {
- fprintf(stderr, "error: %s\n", lua_tostring(L, -1));
+ vector<string> errors;
+ bool success = false;
+ for (size_t i = 0; i < search_dirs.size(); ++i) {
+ string path = search_dirs[i] + "/" + 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);
+ }
+ success = true;
+ break;
+ }
+ errors.push_back(lua_tostring(L, -1));
lua_pop(L, 1);
+ if (err != LUA_ERRFILE) {
+ // The file actually loaded, but failed to parse somehow. Abort; don't try the next one.
+ break;
+ }
+ }
+
+ if (!success) {
+ for (const string &error : errors) {
+ fprintf(stderr, "%s\n", error.c_str());
+ }
exit(1);
}
assert(lua_gettop(L) == 0);
// Ask it for the number of channels.
- lua_getglobal(L, "num_channels");
-
- if (lua_pcall(L, 0, 1, 0) != 0) {
- fprintf(stderr, "error running function `num_channels': %s\n", lua_tostring(L, -1));
- exit(1);
- }
+ num_channels = call_num_channels(L);
+}
- num_channels = luaL_checknumber(L, 1);
- lua_pop(L, 1);
- assert(lua_gettop(L) == 0);
+Theme::~Theme()
+{
+ lua_close(L);
}
void Theme::register_class(const char *class_name, const luaL_Reg *funcs)
{
assert(lua_gettop(L) == 0);
- luaL_newmetatable(L, class_name);
+ luaL_newmetatable(L, class_name); // mt = {}
lua_pushlightuserdata(L, this);
- luaL_setfuncs(L, funcs, 1);
+ 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");
- lua_setglobal(L, class_name);
+ lua_setfield(L, -2, "__index"); // mt.__index = mt
+ lua_setglobal(L, class_name); // ClassName = mt
assert(lua_gettop(L) == 0);
}
-pair<EffectChain *, function<void()>>
-Theme::get_chain(unsigned num, float t, unsigned width, unsigned height)
+Theme::Chain Theme::get_chain(unsigned num, float t, unsigned width, unsigned height, InputState input_state)
{
+ Chain chain;
+
unique_lock<mutex> lock(m);
assert(lua_gettop(L) == 0);
lua_getglobal(L, "get_chain"); /* function to be called */
lua_pushnumber(L, t);
lua_pushnumber(L, width);
lua_pushnumber(L, height);
+ wrap_lua_object<InputStateInfo>(L, "InputStateInfo", input_state);
- if (lua_pcall(L, 4, 2, 0) != 0) {
+ if (lua_pcall(L, 5, 2, 0) != 0) {
fprintf(stderr, "error running function `get_chain': %s\n", lua_tostring(L, -1));
exit(1);
}
- EffectChain *chain = (EffectChain *)luaL_checkudata(L, -2, "EffectChain");
+ chain.chain = (EffectChain *)luaL_testudata(L, -2, "EffectChain");
+ if (chain.chain == nullptr) {
+ fprintf(stderr, "get_chain() for chain number %d did not return an EffectChain\n",
+ num);
+ exit(1);
+ }
if (!lua_isfunction(L, -1)) {
fprintf(stderr, "Argument #-1 should be a function\n");
exit(1);
}
lua_pushvalue(L, -1);
- int funcref = luaL_ref(L, LUA_REGISTRYINDEX); // TODO: leak!
+ shared_ptr<LuaRefWithDeleter> funcref(new LuaRefWithDeleter(&m, L, luaL_ref(L, LUA_REGISTRYINDEX)));
lua_pop(L, 2);
assert(lua_gettop(L) == 0);
- return make_pair(chain, [this, funcref]{
+
+ chain.setup_chain = [this, funcref, input_state]{
unique_lock<mutex> lock(m);
+ this->input_state = &input_state;
+
// Set up state, including connecting signals.
- lua_rawgeti(L, LUA_REGISTRYINDEX, funcref);
+ 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);
}
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?
+ for (unsigned card_index = 0; card_index < num_cards; ++card_index) {
+ for (unsigned frame_num = 0; frame_num < FRAME_HISTORY_LENGTH; ++frame_num) {
+ chain.input_frames.push_back(input_state.buffered_frames[card_index][frame_num].frame);
+ }
+ }
+
+ return chain;
+}
+
+string Theme::get_channel_name(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "channel_name");
+ 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);
+ }
+ const char *ret = lua_tostring(L, -1);
+ if (ret == nullptr) {
+ fprintf(stderr, "function `channel_name' returned nil for channel %d\n", channel);
+ exit(1);
+ }
+
+ string retstr = ret;
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return retstr;
+}
+
+int Theme::get_channel_signal(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "channel_signal");
+ 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);
+ }
+
+ int ret = luaL_checknumber(L, 1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return ret;
+}
+
+std::string Theme::get_channel_color(unsigned channel)
+{
+ unique_lock<mutex> 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);
+ }
+
+ const char *ret = lua_tostring(L, -1);
+ if (ret == nullptr) {
+ fprintf(stderr, "function `channel_color' returned nil for channel %d\n", channel);
+ exit(1);
+ }
+
+ string retstr = ret;
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return retstr;
+}
+
+bool Theme::get_supports_set_wb(unsigned channel)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "supports_set_wb");
+ 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);
+ }
+
+ bool ret = checkbool(L, -1);
+ lua_pop(L, 1);
+ assert(lua_gettop(L) == 0);
+ return ret;
+}
+
+void Theme::set_wb(unsigned channel, double r, double g, double b)
+{
+ unique_lock<mutex> lock(m);
+ lua_getglobal(L, "set_wb");
+ 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);
+ }
+
+ assert(lua_gettop(L) == 0);
}
-std::vector<std::string> Theme::get_transition_names(float t)
+vector<string> Theme::get_transition_names(float t)
{
unique_lock<mutex> lock(m);
lua_getglobal(L, "get_transitions");
exit(1);
}
- std::vector<std::string> ret;
+ vector<string> ret;
lua_pushnil(L);
while (lua_next(L, -2) != 0) {
ret.push_back(lua_tostring(L, -1));
return ret;
}
-void Theme::connect_signal(YCbCrInput *input, int signal_num)
+int Theme::map_signal(int signal_num)
{
+ unique_lock<mutex> lock(map_m);
+ if (signal_to_card_mapping.count(signal_num)) {
+ return signal_to_card_mapping[signal_num];
+ }
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);
fprintf(stderr, "Mapping to card %d instead.\n", signal_num % num_cards);
- signal_num %= num_cards;
}
- input->set_texture_num(0, input_textures[signal_num].tex_y);
- input->set_texture_num(1, input_textures[signal_num].tex_cbcr);
+ signal_to_card_mapping[signal_num] = signal_num % num_cards;
+ return signal_num % num_cards;
+}
+
+void Theme::set_signal_mapping(int signal_num, int card_num)
+{
+ unique_lock<mutex> 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)
projects / nageru / blobdiff