mirror of https://github.com/Xaymar/obs-StreamFX
408 lines
14 KiB
C++
408 lines
14 KiB
C++
// Modern effects for a modern Streamer
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// Copyright (C) 2017 Michael Fabian Dirks
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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#include "gfx-effect-source.h"
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#include "strings.h"
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#include <util/platform.h>
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#include <fstream>
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bool gfx::effect_source::property_type_modified(void*, obs_properties_t* props, obs_property_t*, obs_data_t* sett) {
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switch ((InputTypes)obs_data_get_int(sett, D_TYPE)) {
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default:
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case InputTypes::Text:
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obs_property_set_visible(obs_properties_get(props, D_INPUT_TEXT), true);
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obs_property_set_visible(obs_properties_get(props, D_INPUT_FILE), false);
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break;
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case InputTypes::File:
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obs_property_set_visible(obs_properties_get(props, D_INPUT_TEXT), false);
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obs_property_set_visible(obs_properties_get(props, D_INPUT_FILE), true);
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break;
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}
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return true;
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}
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bool gfx::effect_source::property_input_modified(void* obj, obs_properties_t*, obs_property_t*, obs_data_t* sett) {
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const char* text = nullptr;
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const char* file = nullptr;
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switch ((InputTypes)obs_data_get_int(sett, D_TYPE)) {
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default:
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case InputTypes::Text:
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text = obs_data_get_string(sett, D_INPUT_TEXT);
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break;
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case InputTypes::File:
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file = obs_data_get_string(sett, D_INPUT_FILE);
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break;
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}
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return reinterpret_cast<gfx::effect_source*>(obj)->test_for_updates(text, file);
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}
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void gfx::effect_source::video_tick_impl(float time) {
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// Shader Timers
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time_existing += time;
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time_active += time;
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// File Timer
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shader.file_info.time_updated -= time;
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}
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void gfx::effect_source::video_render_impl(gs_effect_t* parent_effect) {
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parent_effect;
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}
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gfx::effect_source::effect_source(obs_data_t* data, obs_source_t* owner) {
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m_source = owner;
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time_existing = 0;
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time_active = 0;
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update(data);
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}
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gfx::effect_source::~effect_source() {}
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void gfx::effect_source::get_properties(obs_properties_t* properties) {
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obs_property_t* p = nullptr;
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p = obs_properties_add_list(properties, D_TYPE, P_TRANSLATE(T_TYPE), OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(T_TYPE)));
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obs_property_list_add_int(p, P_TRANSLATE(T_TYPE_TEXT), (long long)InputTypes::Text);
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obs_property_list_add_int(p, P_TRANSLATE(T_TYPE_FILE), (long long)InputTypes::File);
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obs_property_set_modified_callback2(p, property_type_modified, this);
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p = obs_properties_add_text(properties, D_INPUT_TEXT, P_TRANSLATE(T_INPUT_TEXT), OBS_TEXT_MULTILINE);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(T_INPUT_TEXT)));
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obs_property_set_modified_callback2(p, property_input_modified, this);
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{
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char* tmp_path = obs_module_file(default_shader_path.c_str());
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p = obs_properties_add_path(properties, D_INPUT_FILE, P_TRANSLATE(T_INPUT_FILE), OBS_PATH_FILE,
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"Any (*.effect *.shader *.hlsl);;Effect (*.effect);;Shader (*.shader);;DirectX (*.hlsl)", tmp_path);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(T_INPUT_FILE)));
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obs_property_set_modified_callback2(p, property_input_modified, this);
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bfree(tmp_path);
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}
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// ToDo: Place updated properties here or somewhere else?
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for (auto prm : parameters) {
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if (prm.first.second == gs::effect_parameter::type::Boolean) {
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obs_properties_add_bool(properties, prm.second->ui.names[0], prm.second->ui.descs[0]);
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} else if (prm.first.second >= gs::effect_parameter::type::Integer && prm.first.second <= gs::effect_parameter::type::Integer4) {
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size_t cnt = (size_t)prm.first.second - (size_t)gs::effect_parameter::type::Integer;
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for (size_t idx = 0; idx <= cnt; idx++) {
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obs_properties_add_int(properties, prm.second->ui.names[idx], prm.second->ui.descs[idx], INT_MIN, INT_MAX, 1);
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}
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} else if (prm.first.second >= gs::effect_parameter::type::Float && prm.first.second <= gs::effect_parameter::type::Float4) {
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size_t cnt = (size_t)prm.first.second - (size_t)gs::effect_parameter::type::Float;
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for (size_t idx = 0; idx <= cnt; idx++) {
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obs_properties_add_float(properties, prm.second->ui.names[idx], prm.second->ui.descs[idx], FLT_MIN, FLT_MAX, 1);
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}
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}
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}
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}
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void gfx::effect_source::get_defaults(obs_data_t* data) {
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obs_data_set_default_int(data, D_TYPE, (long long)InputTypes::Text);
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obs_data_set_default_string(data, D_INPUT_TEXT, "");
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obs_data_set_default_string(data, D_INPUT_FILE, "");
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}
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void gfx::effect_source::update(obs_data_t* data) {
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obs_data_addref(data);
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// Update Shader
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InputTypes input_type = (InputTypes)obs_data_get_int(data, D_TYPE);
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if (input_type == InputTypes::Text) {
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const char* text = obs_data_get_string(data, D_INPUT_TEXT);
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test_for_updates(text, nullptr);
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} else if (input_type == InputTypes::File) {
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const char* path = obs_data_get_string(data, D_INPUT_FILE);
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test_for_updates(nullptr, path);
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}
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update_parameters(data);
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obs_data_release(data);
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}
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bool gfx::effect_source::test_for_updates(const char* text, const char* path) {
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bool is_shader_different = false;
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if (text != nullptr) {
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if (text != shader.text) {
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shader.text = text;
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is_shader_different = true;
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}
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if (is_shader_different) {
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shader.effect = std::make_unique<gs::effect>(shader.text, "Text");
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}
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} else if (path != nullptr) {
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if (path != this->shader.path) {
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this->shader.path = path;
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this->shader.file_info.time_updated = 0;
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this->shader.file_info.time_create = 0;
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this->shader.file_info.time_modified = 0;
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this->shader.file_info.file_size = 0;
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is_shader_different = true;
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}
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// If the update timer is 0 or less, grab new file information.
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if (shader.file_info.time_updated <= 0) {
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struct stat stats;
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if (os_stat(shader.path.c_str(), &stats) == 0) {
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shader.file_info.modified = (shader.file_info.time_create != stats.st_ctime)
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| (shader.file_info.time_modified != stats.st_mtime)
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| (shader.file_info.file_size != stats.st_size);
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// Mark shader as different if the file was changed.
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is_shader_different =
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is_shader_different
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| shader.file_info.modified;
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// Update own information
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shader.file_info.time_create = stats.st_ctime;
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shader.file_info.time_modified = stats.st_mtime;
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shader.file_info.file_size = stats.st_size;
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}
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// Increment timer so that the next check is a reasonable timespan away.
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shader.file_info.time_updated += 0.1f;
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}
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if (is_shader_different || shader.file_info.modified) {
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// gs_effect_create_from_file caches results, which is bad for us.
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std::vector<char> content;
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std::ifstream fs(shader.path.c_str(), std::ios::binary);
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if (fs.good()) {
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size_t beg = fs.tellg();
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fs.seekg(0, std::ios::end);
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size_t sz = size_t(fs.tellg()) - beg;
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content.resize(sz + 1);
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fs.seekg(0, std::ios::beg);
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fs.read(content.data(), sz);
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fs.close();
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content[sz] = '\0';
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shader.effect = std::make_unique<gs::effect>(std::string(content.data()), shader.path);
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}
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}
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}
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// If the shader is different, rebuild the parameter list.
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if (is_shader_different) {
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if (shader.effect) {
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// ToDo: Figure out if a recycling approach would work.
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// Might improve stability in low memory situations.
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std::map<paramident_t, std::shared_ptr<parameter>> new_params;
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auto effect_param_list = shader.effect->get_parameters();
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for (auto effect_param : effect_param_list) {
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paramident_t ident;
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ident.first = effect_param.get_name();
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ident.second = effect_param.get_type();
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if (is_special_parameter(ident.first, ident.second))
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continue;
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auto entry = parameters.find(ident);
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if (entry != parameters.end()) {
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entry->second->param = std::make_shared<gs::effect_parameter>(effect_param);
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new_params.insert_or_assign(ident, entry->second);
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parameters.erase(entry);
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} else {
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std::shared_ptr<parameter> param;
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if (ident.second == gs::effect_parameter::type::Boolean) {
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std::shared_ptr<bool_parameter> nparam = std::make_shared<bool_parameter>();
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std::string ui_name, ui_desc;
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ui_name = ident.first;
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ui_desc = ident.first;
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nparam->ui.buffer.resize(ui_name.size() + 1 + ui_desc.size() + 1);
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memset(nparam->ui.buffer.data(), 0, nparam->ui.buffer.size());
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memcpy(nparam->ui.buffer.data(), ui_name.c_str(), ui_name.size());
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memcpy(nparam->ui.buffer.data() + ui_name.size() + 1, ui_desc.c_str(), ui_desc.size());
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nparam->ui.names.resize(1);
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nparam->ui.names[0] = nparam->ui.buffer.data();
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nparam->ui.descs.resize(1);
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nparam->ui.descs[0] = nparam->ui.buffer.data() + ui_name.size() + 1;
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param = std::dynamic_pointer_cast<parameter>(nparam);
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} else if (ident.second >= gs::effect_parameter::type::Integer && ident.second <= gs::effect_parameter::type::Integer4) {
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std::shared_ptr<int_parameter> nparam = std::make_shared<int_parameter>();
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size_t cnt = (size_t)ident.second - (size_t)gs::effect_parameter::type::Integer;
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std::string ui_name[4], ui_desc[4];
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size_t bufsize = 0;
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if (cnt > 0) {
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for (size_t idx = 0; idx <= cnt; idx++) {
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ui_name[idx] = ident.first + (char)(48 + idx);
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ui_desc[idx] = ident.first + "[" + (char)(48 + idx) + "]";
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bufsize += ui_name[idx].size() + 1;
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bufsize += ui_desc[idx].size() + 1;
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}
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} else {
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ui_name[0] = ident.first;
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ui_desc[0] = ident.first;
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bufsize += ui_name[0].size() + 1;
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bufsize += ui_desc[0].size() + 1;
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}
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nparam->ui.names.resize(cnt + 1);
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nparam->ui.descs.resize(cnt + 1);
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nparam->ui.buffer.resize(bufsize);
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memset(nparam->ui.buffer.data(), 0, bufsize);
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size_t off = 0;
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for (size_t idx = 0; idx <= cnt; idx++) {
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memcpy(nparam->ui.buffer.data() + off, ui_name[idx].c_str(), ui_name[idx].size());
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nparam->ui.names[idx] = nparam->ui.buffer.data() + off;
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off += ui_name[idx].size() + 1;
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memcpy(nparam->ui.buffer.data() + off, ui_desc[idx].c_str(), ui_desc[idx].size());
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nparam->ui.descs[idx] = nparam->ui.buffer.data() + off;
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off += ui_desc[idx].size() + 1;
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}
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param = std::dynamic_pointer_cast<parameter>(nparam);
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} else if (ident.second >= gs::effect_parameter::type::Float && ident.second <= gs::effect_parameter::type::Float4) {
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std::shared_ptr<float_parameter> nparam = std::make_shared<float_parameter>();
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size_t cnt = (size_t)ident.second - (size_t)gs::effect_parameter::type::Float;
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std::string ui_name[4], ui_desc[4];
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size_t bufsize = 0;
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if (cnt > 0) {
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for (size_t idx = 0; idx <= cnt; idx++) {
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ui_name[idx] = ident.first + (char)(48 + idx);
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ui_desc[idx] = ident.first + "[" + (char)(48 + idx) + "]";
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bufsize += ui_name[idx].size() + 1;
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bufsize += ui_desc[idx].size() + 1;
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}
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} else {
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ui_name[0] = ident.first;
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ui_desc[0] = ident.first;
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bufsize += ui_name[0].size() + 1;
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bufsize += ui_desc[0].size() + 1;
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}
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nparam->ui.names.resize(cnt + 1);
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nparam->ui.descs.resize(cnt + 1);
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nparam->ui.buffer.resize(bufsize);
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memset(nparam->ui.buffer.data(), 0, bufsize);
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size_t off = 0;
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for (size_t idx = 0; idx <= cnt; idx++) {
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memcpy(nparam->ui.buffer.data() + off, ui_name[idx].c_str(), ui_name[idx].size());
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nparam->ui.names[idx] = nparam->ui.buffer.data() + off;
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off += ui_name[idx].size() + 1;
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memcpy(nparam->ui.buffer.data() + off, ui_desc[idx].c_str(), ui_desc[idx].size());
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nparam->ui.descs[idx] = nparam->ui.buffer.data() + off;
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off += ui_desc[idx].size() + 1;
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}
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param = std::dynamic_pointer_cast<parameter>(nparam);
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} else {
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}
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if (param) {
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param->name = ident.first;
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param->param = std::make_shared<gs::effect_parameter>(effect_param);
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new_params.insert_or_assign(ident, param);
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}
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}
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}
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parameters = std::move(new_params);
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} else {
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parameters.clear();
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}
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}
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return is_shader_different;
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}
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void gfx::effect_source::update_parameters(obs_data_t* data) {
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for (auto prm : parameters) {
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if (prm.first.second == gs::effect_parameter::type::Boolean) {
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auto param = std::static_pointer_cast<bool_parameter>(prm.second);
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param->value = obs_data_get_bool(data, prm.second->ui.names[0]);
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} else if (prm.first.second >= gs::effect_parameter::type::Integer && prm.first.second <= gs::effect_parameter::type::Integer4) {
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auto param = std::static_pointer_cast<int_parameter>(prm.second);
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for (size_t idx = 0; idx < prm.second->ui.names.size(); idx++) {
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param->value[idx] = obs_data_get_int(data, prm.second->ui.names[idx]);
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}
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} else if (prm.first.second >= gs::effect_parameter::type::Float && prm.first.second <= gs::effect_parameter::type::Float4) {
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auto param = std::static_pointer_cast<float_parameter>(prm.second);
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for (size_t idx = 0; idx < prm.second->ui.names.size(); idx++) {
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param->value[idx] = obs_data_get_double(data, prm.second->ui.names[idx]);
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}
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}
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}
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}
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void gfx::effect_source::apply_parameters() {
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for (auto prm : parameters) {
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if (prm.first.second == gs::effect_parameter::type::Boolean) {
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auto param = std::static_pointer_cast<bool_parameter>(prm.second);
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} else if (prm.first.second >= gs::effect_parameter::type::Integer && prm.first.second <= gs::effect_parameter::type::Integer4) {
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auto param = std::static_pointer_cast<int_parameter>(prm.second);
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} else if (prm.first.second >= gs::effect_parameter::type::Float && prm.first.second <= gs::effect_parameter::type::Float4) {
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auto param = std::static_pointer_cast<float_parameter>(prm.second);
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}
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}
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}
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void gfx::effect_source::activate() {
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time_active = 0;
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}
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void gfx::effect_source::deactivate() {
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time_active = 0;
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}
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std::string gfx::effect_source::get_shader_file() {
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return shader.path;
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}
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uint32_t gfx::effect_source::get_width() {
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return 0;
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}
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uint32_t gfx::effect_source::get_height() {
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return 0;
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}
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void gfx::effect_source::video_tick(float time) {
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video_tick_impl(time);
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}
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void gfx::effect_source::video_render(gs_effect_t* parent_effect) {
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video_render_impl(parent_effect);
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}
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