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obs-streamFX/source/filters/filter-displacement.cpp

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2017 Michael Fabian Dirks
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
//--------------------------------------------------------------------------------//
// THIS FEATURE IS DEPRECATED. SUBMITTED PATCHES WILL BE REJECTED.
//--------------------------------------------------------------------------------//
#include "filter-displacement.hpp"
#include "strings.hpp"
#include "obs/gs/gs-helper.hpp"
#include "util/util-logging.hpp"
#include "warning-disable.hpp"
#include <stdexcept>
#include <sys/stat.h>
#include "warning-enable.hpp"
#ifdef _DEBUG
#define ST_PREFIX "<%s> "
#define D_LOG_ERROR(x, ...) P_LOG_ERROR(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_WARNING(x, ...) P_LOG_WARN(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_INFO(x, ...) P_LOG_INFO(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_DEBUG(x, ...) P_LOG_DEBUG(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#else
#define ST_PREFIX "<filter::displacement> "
#define D_LOG_ERROR(...) P_LOG_ERROR(ST_PREFIX __VA_ARGS__)
#define D_LOG_WARNING(...) P_LOG_WARN(ST_PREFIX __VA_ARGS__)
#define D_LOG_INFO(...) P_LOG_INFO(ST_PREFIX __VA_ARGS__)
#define D_LOG_DEBUG(...) P_LOG_DEBUG(ST_PREFIX __VA_ARGS__)
#endif
#define ST_I18N "Filter.Displacement"
#define ST_I18N_DEPRECATED ST_I18N ".Deprecated"
#define ST_I18N_FILE "Filter.Displacement.File"
#define ST_KEY_FILE "Filter.Displacement.File"
#define ST_I18N_SCALE "Filter.Displacement.Scale"
#define ST_KEY_SCALE "Filter.Displacement.Scale"
#define ST_I18N_SCALE_TYPE "Filter.Displacement.Scale.Type"
#define ST_KEY_SCALE_TYPE "Filter.Displacement.Scale.Type"
using namespace streamfx::filter::displacement;
displacement_instance::displacement_instance(obs_data_t* data, obs_source_t* context)
: obs::source_instance(data, context)
{
{
auto gctx = streamfx::obs::gs::context();
{
auto file = streamfx::data_file_path("effects/displace.effect");
try {
_effect = streamfx::obs::gs::effect::create(file);
} catch (std::exception& ex) {
D_LOG_ERROR("Error loading '%s': %s", file.u8string().c_str(), ex.what());
throw;
}
}
}
update(data);
}
displacement_instance::~displacement_instance()
{
_texture.reset();
}
void displacement_instance::load(obs_data_t* settings)
{
update(settings);
}
void displacement_instance::migrate(obs_data_t* data, uint64_t version)
{
switch (version & STREAMFX_MASK_COMPAT) {
case 0:
obs_data_set_double(data, ST_KEY_SCALE, obs_data_get_double(data, "Filter.Displacement.Scale") * 0.5);
obs_data_set_double(data, ST_KEY_SCALE_TYPE, obs_data_get_double(data, "Filter.Displacement.Ratio") * 100.0);
obs_data_unset_user_value(data, "Filter.Displacement.Ratio");
case STREAMFX_MAKE_VERSION(0, 8, 0, 0):
break;
}
}
void displacement_instance::update(obs_data_t* settings)
{
_scale[0] = _scale[1] = static_cast<float_t>(obs_data_get_double(settings, ST_KEY_SCALE));
_scale_type = static_cast<float_t>(obs_data_get_double(settings, ST_KEY_SCALE_TYPE) / 100.0);
const char* new_file = obs_data_get_string(settings, ST_KEY_FILE);
if (new_file != _texture_file) {
try {
_texture = std::make_shared<streamfx::obs::gs::texture>(new_file);
_texture_file = new_file;
} catch (...) {
_texture.reset();
}
}
}
void displacement_instance::video_tick(float_t)
{
_width = obs_source_get_base_width(_self);
_height = obs_source_get_base_height(_self);
}
void displacement_instance::video_render(gs_effect_t*)
{
if (!_texture) { // No displacement map, so just skip us for now.
obs_source_skip_video_filter(_self);
return;
}
#ifdef ENABLE_PROFILING
streamfx::obs::gs::debug_marker gdmp{streamfx::obs::gs::debug_color_source, "Displacement Mapping '%s' on '%s'",
obs_source_get_name(_self), obs_source_get_name(obs_filter_get_parent(_self))};
#endif
if (!obs_source_process_filter_begin(_self, GS_RGBA, OBS_ALLOW_DIRECT_RENDERING)) {
obs_source_skip_video_filter(_self);
return;
}
_effect.get_parameter("image_size").set_float2(static_cast<float_t>(_width), static_cast<float_t>(_height));
_effect.get_parameter("image_inverse_size")
.set_float2(static_cast<float_t>(1.0 / _width), static_cast<float_t>(1.0 / _height));
_effect.get_parameter("normal").set_texture(_texture->get_object());
_effect.get_parameter("scale").set_float2(_scale[0], _scale[1]);
_effect.get_parameter("scale_type").set_float(_scale_type);
obs_source_process_filter_end(_self, _effect.get_object(), _width, _height);
}
std::string displacement_instance::get_file()
{
return _texture_file;
}
displacement_factory::displacement_factory()
{
_info.id = S_PREFIX "filter-displacement";
_info.type = OBS_SOURCE_TYPE_FILTER;
_info.output_flags = OBS_SOURCE_VIDEO | OBS_SOURCE_CUSTOM_DRAW | OBS_SOURCE_DEPRECATED | OBS_SOURCE_CAP_DISABLED;
support_size(false);
finish_setup();
register_proxy("obs-stream-effects-filter-displacement");
}
displacement_factory::~displacement_factory() {}
const char* displacement_factory::get_name()
{
return D_TRANSLATE(ST_I18N);
}
void displacement_factory::get_defaults2(obs_data_t* data)
{
obs_data_set_default_string(data, ST_KEY_FILE,
streamfx::data_file_path("examples/normal-maps/neutral.png").u8string().c_str());
obs_data_set_default_double(data, ST_KEY_SCALE, 0.0);
obs_data_set_default_double(data, ST_KEY_SCALE_TYPE, 0.0);
}
obs_properties_t* displacement_factory::get_properties2(displacement_instance* data)
{
obs_properties_t* pr = obs_properties_create();
{
auto p = obs_properties_add_text(pr, "[[deprecated]]", D_TRANSLATE(ST_I18N_DEPRECATED), OBS_TEXT_INFO);
obs_property_text_set_info_type(p, OBS_TEXT_INFO_WARNING);
obs_property_text_set_info_word_wrap(p, true);
}
std::string path = "";
if (data) {
path = data->get_file();
} else {
path = streamfx::data_file_path("examples/normal-maps/neutral.png").u8string();
}
obs_properties_add_path(pr, ST_KEY_FILE, D_TRANSLATE(ST_I18N_FILE), obs_path_type::OBS_PATH_FILE,
D_TRANSLATE(S_FILEFILTERS_TEXTURE), path.c_str());
obs_properties_add_float(pr, ST_KEY_SCALE, D_TRANSLATE(ST_I18N_SCALE), -10000000.0, 10000000.0, 0.01);
obs_properties_add_float_slider(pr, ST_KEY_SCALE_TYPE, D_TRANSLATE(ST_I18N_SCALE_TYPE), 0.0, 100.0, 0.01);
return pr;
}
std::shared_ptr<displacement_factory> _filter_displacement_factory_instance = nullptr;
void streamfx::filter::displacement::displacement_factory::initialize()
{
try {
if (!_filter_displacement_factory_instance)
_filter_displacement_factory_instance = std::make_shared<displacement_factory>();
} catch (const std::exception& ex) {
D_LOG_ERROR("Failed to initialize due to error: %s", ex.what());
} catch (...) {
D_LOG_ERROR("Failed to initialize due to unknown error.", "");
}
}
void streamfx::filter::displacement::displacement_factory::finalize()
{
_filter_displacement_factory_instance.reset();
}
std::shared_ptr<displacement_factory> streamfx::filter::displacement::displacement_factory::get()
{
return _filter_displacement_factory_instance;
}
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