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obs-StreamFX/source/filter-blur.cpp
Michael Fabian 'Xaymar' Dirks 3952c33c60 filter-blur: Add Directional Blur (Motion Blur) and Step Scaling 
Directional Blur (also known as Motion Blur in some art software) enables full control over the direction the passes are applied in, which can further be combined with the scaling option. With this very simple blur effects can have a massively bigger influence.

Step Scaling allows for improved control over individual Blur passes and can be combined with Directional Blur to imitate certain effects. It also allows smaller Blur sizes to cover a larger area, although with a drastic loss in final quality. For example, if someone is streaming at 720p and wants to have their dynamic 2160p background blurry to a very high degree, this option would allow that at next to no quality loss in the final stream. The actual values that need to be used vary for each source and encoder however, so they will have to be chosen carefully.
2018-12-23 19:54:57 +01:00

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2017-2018 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
*/
#include "filter-blur.h"
#include <cmath>
#include <inttypes.h>
#include <map>
#include "strings.h"
#include "util-math.h"
extern "C" {
#pragma warning(push)
#pragma warning(disable : 4201)
#include "callback/signal.h"
#include "graphics/graphics.h"
#include "graphics/matrix4.h"
#include "util/platform.h"
#pragma warning(pop)
}
// Translation Strings
#define SOURCE_NAME "Filter.Blur"
#define P_TYPE "Filter.Blur.Type"
#define P_TYPE_BOX "Filter.Blur.Type.Box"
#define P_TYPE_BOXLINEAR "Filter.Blur.Type.BoxLinear"
#define P_TYPE_GAUSSIAN "Filter.Blur.Type.Gaussian"
#define P_TYPE_GAUSSIANLINEAR "Filter.Blur.Type.GaussianLinear"
#define P_TYPE_BILATERAL "Filter.Blur.Type.Bilateral"
#define P_SIZE "Filter.Blur.Size"
#define P_BILATERAL_SMOOTHING "Filter.Blur.Bilateral.Smoothing"
#define P_BILATERAL_SHARPNESS "Filter.Blur.Bilateral.Sharpness"
#define P_DIRECTIONAL "Filter.Blur.Directional"
#define P_DIRECTIONAL_ANGLE "Filter.Blur.Directional.Angle"
#define P_STEPSCALE "Filter.Blur.StepScale"
#define P_STEPSCALE_X "Filter.Blur.StepScale.X"
#define P_STEPSCALE_Y "Filter.Blur.StepScale.Y"
#define P_MASK "Filter.Blur.Mask"
#define P_MASK_TYPE "Filter.Blur.Mask.Type"
#define P_MASK_TYPE_REGION "Filter.Blur.Mask.Type.Region"
#define P_MASK_TYPE_IMAGE "Filter.Blur.Mask.Type.Image"
#define P_MASK_TYPE_SOURCE "Filter.Blur.Mask.Type.Source"
#define P_MASK_REGION_LEFT "Filter.Blur.Mask.Region.Left"
#define P_MASK_REGION_RIGHT "Filter.Blur.Mask.Region.Right"
#define P_MASK_REGION_TOP "Filter.Blur.Mask.Region.Top"
#define P_MASK_REGION_BOTTOM "Filter.Blur.Mask.Region.Bottom"
#define P_MASK_REGION_FEATHER "Filter.Blur.Mask.Region.Feather"
#define P_MASK_REGION_FEATHER_SHIFT "Filter.Blur.Mask.Region.Feather.Shift"
#define P_MASK_REGION_INVERT "Filter.Blur.Mask.Region.Invert"
#define P_MASK_IMAGE "Filter.Blur.Mask.Image"
#define P_MASK_SOURCE "Filter.Blur.Mask.Source"
#define P_MASK_COLOR "Filter.Blur.Mask.Color"
#define P_MASK_ALPHA "Filter.Blur.Mask.Alpha"
#define P_MASK_MULTIPLIER "Filter.Blur.Mask.Multiplier"
#define P_COLORFORMAT "Filter.Blur.ColorFormat"
// Initializer & Finalizer
INITIALIZER(filterBlurFactoryInitializer)
{
initializerFunctions.push_back([] { filter::blur::blur_factory::initialize(); });
finalizerFunctions.push_back([] { filter::blur::blur_factory::finalize(); });
}
enum ColorFormat : uint64_t { // ToDo: Refactor into full class.
RGB,
YUV, // 701
};
static uint8_t const max_kernel_size = 25;
bool filter::blur::blur_instance::apply_shared_param(gs_texture_t* input, float texelX, float texelY)
{
bool result = true;
result = result && gs_set_param_texture(blur_effect->get_object(), "u_image", input);
vec2 imageSize;
vec2_set(&imageSize, (float)gs_texture_get_width(input), (float)gs_texture_get_height(input));
result = result && gs_set_param_float2(blur_effect->get_object(), "u_imageSize", &imageSize);
vec2 imageTexelDelta;
vec2_set(&imageTexelDelta, 1.0f, 1.0f);
vec2_div(&imageTexelDelta, &imageTexelDelta, &imageSize);
result = result && gs_set_param_float2(blur_effect->get_object(), "u_imageTexel", &imageTexelDelta);
vec2 texel;
vec2_set(&texel, texelX, texelY);
result = result && gs_set_param_float2(blur_effect->get_object(), "u_texelDelta", &texel);
result = result && gs_set_param_int(blur_effect->get_object(), "u_radius", (int)size);
result = result && gs_set_param_int(blur_effect->get_object(), "u_diameter", (int)(1 + (size * 2)));
return result;
}
bool filter::blur::blur_instance::apply_bilateral_param()
{
if (type != type::Bilateral)
return false;
if (blur_effect->has_parameter("bilateralSmoothing")) {
blur_effect->get_parameter("bilateralSmoothing").set_float((float)(bilateral_smoothing * (1 + size * 2)));
}
if (blur_effect->has_parameter("bilateralSharpness")) {
blur_effect->get_parameter("bilateralSharpness").set_float((float)(1.0 - bilateral_sharpness));
}
return true;
}
bool filter::blur::blur_instance::apply_gaussian_param(uint8_t width)
{
auto kernel = filter::blur::blur_factory::get()->get_gaussian_kernel(width);
if (blur_effect->has_parameter("kernel")) {
blur_effect->get_parameter("kernel").set_float_array(&(kernel->front()), kernel->size());
}
return true;
}
bool filter::blur::blur_instance::apply_mask_parameters(std::shared_ptr<gs::effect> effect,
gs_texture_t* original_texture, gs_texture_t* blurred_texture)
{
if (effect->has_parameter("image_orig")) {
effect->get_parameter("image_orig").set_texture(original_texture);
}
if (effect->has_parameter("image_blur")) {
effect->get_parameter("image_blur").set_texture(blurred_texture);
}
// Region
if (mask.type == mask_type::Region) {
if (effect->has_parameter("mask_region_left")) {
effect->get_parameter("mask_region_left").set_float(mask.region.left);
}
if (effect->has_parameter("mask_region_right")) {
effect->get_parameter("mask_region_right").set_float(mask.region.right);
}
if (effect->has_parameter("mask_region_top")) {
effect->get_parameter("mask_region_top").set_float(mask.region.top);
}
if (effect->has_parameter("mask_region_bottom")) {
effect->get_parameter("mask_region_bottom").set_float(mask.region.bottom);
}
if (effect->has_parameter("mask_region_feather")) {
effect->get_parameter("mask_region_feather").set_float(mask.region.feather);
}
if (effect->has_parameter("mask_region_feather_shift")) {
effect->get_parameter("mask_region_feather_shift").set_float(mask.region.feather_shift);
}
}
// Image
if (mask.type == mask_type::Image) {
if (effect->has_parameter("mask_image")) {
if (mask.image.texture) {
effect->get_parameter("mask_image").set_texture(mask.image.texture);
} else {
effect->get_parameter("mask_image").set_texture(nullptr);
}
}
}
// Source
if (mask.type == mask_type::Source) {
if (effect->has_parameter("mask_image")) {
if (mask.source.texture) {
effect->get_parameter("mask_image").set_texture(mask.source.texture);
} else {
effect->get_parameter("mask_image").set_texture(nullptr);
}
}
}
// Shared
if (effect->has_parameter("mask_color")) {
effect->get_parameter("mask_color").set_float4(mask.color.r, mask.color.g, mask.color.b, mask.color.a);
}
if (effect->has_parameter("mask_multiplier")) {
effect->get_parameter("mask_multiplier").set_float(mask.multiplier);
}
return true;
}
bool filter::blur::blur_instance::modified_properties(void* ptr, obs_properties_t* props, obs_property* prop,
obs_data_t* settings)
{
prop;
ptr;
// bilateral blur
bool show_bilateral = (obs_data_get_int(settings, P_TYPE) == type::Bilateral);
obs_property_set_visible(obs_properties_get(props, P_BILATERAL_SMOOTHING), show_bilateral);
obs_property_set_visible(obs_properties_get(props, P_BILATERAL_SHARPNESS), show_bilateral);
// region
bool show_mask = obs_data_get_bool(settings, P_MASK);
mask_type mtype = static_cast<mask_type>(obs_data_get_int(settings, P_MASK_TYPE));
bool show_region = (mtype == mask_type::Region) && show_mask;
bool show_image = (mtype == mask_type::Image) && show_mask;
bool show_source = (mtype == mask_type::Source) && show_mask;
obs_property_set_visible(obs_properties_get(props, P_MASK_TYPE), show_mask);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_LEFT), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_TOP), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_RIGHT), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_BOTTOM), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_FEATHER), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_FEATHER_SHIFT), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_REGION_INVERT), show_region);
obs_property_set_visible(obs_properties_get(props, P_MASK_IMAGE), show_image);
obs_property_set_visible(obs_properties_get(props, P_MASK_SOURCE), show_source);
obs_property_set_visible(obs_properties_get(props, P_MASK_COLOR), show_image || show_source);
obs_property_set_visible(obs_properties_get(props, P_MASK_ALPHA), show_image || show_source);
obs_property_set_visible(obs_properties_get(props, P_MASK_MULTIPLIER), show_image || show_source);
// Directional Blur
bool show_directional = obs_data_get_bool(settings, P_DIRECTIONAL);
obs_property_set_visible(obs_properties_get(props, P_DIRECTIONAL_ANGLE), show_directional);
// Scaling
bool show_scaling = obs_data_get_bool(settings, P_STEPSCALE);
obs_property_set_visible(obs_properties_get(props, P_STEPSCALE_X), show_scaling);
obs_property_set_visible(obs_properties_get(props, P_STEPSCALE_Y), show_scaling);
// advanced
bool showAdvanced = obs_data_get_bool(settings, S_ADVANCED);
obs_property_set_visible(obs_properties_get(props, P_COLORFORMAT), showAdvanced);
return true;
}
bool filter::blur::blur_instance::can_log()
{
// Only allow logging errors every 200ms.
auto now = std::chrono::high_resolution_clock::now();
auto delta = (now - this->last_log);
std::swap(this->last_log, now);
return std::chrono::duration_cast<std::chrono::milliseconds>(delta) > std::chrono::milliseconds(200);
}
filter::blur::blur_instance::blur_instance(obs_data_t* settings, obs_source_t* parent)
{
m_source = parent;
// Create RenderTargets
try {
this->rt_source = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
this->rt_primary = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
this->rt_secondary = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
} catch (std::exception ex) {
P_LOG_ERROR("<filter-blur:%s> Failed to create rendertargets, error %s.", obs_source_get_name(m_source),
ex.what());
}
// Get initial Blur effect.
blur_effect = filter::blur::blur_factory::get()->get_effect(filter::blur::type::Box);
update(settings);
}
filter::blur::blur_instance::~blur_instance()
{
this->rt_primary.reset();
this->rt_secondary.reset();
}
obs_properties_t* filter::blur::blur_instance::get_properties()
{
obs_properties_t* pr = obs_properties_create();
obs_property_t* p = NULL;
p = obs_properties_add_list(pr, P_TYPE, P_TRANSLATE(P_TYPE), OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_TYPE)));
obs_property_set_modified_callback2(p, modified_properties, this);
obs_property_list_add_int(p, P_TRANSLATE(P_TYPE_BOX), filter::blur::type::Box);
obs_property_list_add_int(p, P_TRANSLATE(P_TYPE_BOXLINEAR), filter::blur::type::BoxLinear);
obs_property_list_add_int(p, P_TRANSLATE(P_TYPE_GAUSSIAN), filter::blur::type::Gaussian);
obs_property_list_add_int(p, P_TRANSLATE(P_TYPE_GAUSSIANLINEAR), filter::blur::type::GaussianLinear);
obs_property_list_add_int(p, P_TRANSLATE(P_TYPE_BILATERAL), filter::blur::type::Bilateral);
p = obs_properties_add_int_slider(pr, P_SIZE, P_TRANSLATE(P_SIZE), 1, 25, 1);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_SIZE)));
//obs_property_set_modified_callback(p, modified_properties);
// bilateral Only
p = obs_properties_add_float_slider(pr, P_BILATERAL_SMOOTHING, P_TRANSLATE(P_BILATERAL_SMOOTHING), 0.0, 100.0,
0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_BILATERAL_SMOOTHING)));
p = obs_properties_add_float_slider(pr, P_BILATERAL_SHARPNESS, P_TRANSLATE(P_BILATERAL_SHARPNESS), 0.0, 100.0,
0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_BILATERAL_SHARPNESS)));
// Mask
p = obs_properties_add_bool(pr, P_MASK, P_TRANSLATE(P_MASK));
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK)));
obs_property_set_modified_callback2(p, modified_properties, this);
p = obs_properties_add_list(pr, P_MASK_TYPE, P_TRANSLATE(P_MASK_TYPE), OBS_COMBO_TYPE_LIST, OBS_COMBO_FORMAT_INT);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_TYPE)));
obs_property_set_modified_callback2(p, modified_properties, this);
obs_property_list_add_int(p, P_TRANSLATE(P_MASK_TYPE_REGION), mask_type::Region);
obs_property_list_add_int(p, P_TRANSLATE(P_MASK_TYPE_IMAGE), mask_type::Image);
obs_property_list_add_int(p, P_TRANSLATE(P_MASK_TYPE_SOURCE), mask_type::Source);
/// Region
p = obs_properties_add_float_slider(pr, P_MASK_REGION_LEFT, P_TRANSLATE(P_MASK_REGION_LEFT), 0.0, 100.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_LEFT)));
p = obs_properties_add_float_slider(pr, P_MASK_REGION_TOP, P_TRANSLATE(P_MASK_REGION_TOP), 0.0, 100.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_TOP)));
p = obs_properties_add_float_slider(pr, P_MASK_REGION_RIGHT, P_TRANSLATE(P_MASK_REGION_RIGHT), 0.0, 100.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_RIGHT)));
p = obs_properties_add_float_slider(pr, P_MASK_REGION_BOTTOM, P_TRANSLATE(P_MASK_REGION_BOTTOM), 0.0, 100.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_BOTTOM)));
p = obs_properties_add_float_slider(pr, P_MASK_REGION_FEATHER, P_TRANSLATE(P_MASK_REGION_FEATHER), 0.0, 50.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_FEATHER)));
p = obs_properties_add_float_slider(pr, P_MASK_REGION_FEATHER_SHIFT, P_TRANSLATE(P_MASK_REGION_FEATHER_SHIFT),
-100.0, 100.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_FEATHER_SHIFT)));
p = obs_properties_add_bool(pr, P_MASK_REGION_INVERT, P_TRANSLATE(P_MASK_REGION_INVERT));
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_REGION_INVERT)));
/// Image
p = obs_properties_add_path(pr, P_MASK_IMAGE, P_TRANSLATE(P_MASK_IMAGE), OBS_PATH_FILE,
P_TRANSLATE(S_FILEFILTERS_IMAGES), nullptr);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_IMAGE)));
/// Source
p = obs_properties_add_list(pr, P_MASK_SOURCE, P_TRANSLATE(P_MASK_SOURCE), OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_STRING);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_SOURCE)));
obs_enum_sources(
[](void* ptr, obs_source_t* source) {
obs_property_t* p = reinterpret_cast<obs_property_t*>(ptr);
obs_property_list_add_string(p, std::string(std::string(obs_source_get_name(source)) + " (Source)").c_str(),
obs_source_get_name(source));
return true;
},
p);
blur_factory::get()->enum_scenes([this, p](obs_scene_t* scene) {
struct data {
blur_instance* self;
obs_property_t* prop;
std::string parent_name;
};
obs_source_t* scene_source = obs_scene_get_source(scene);
P_LOG_DEBUG("<filter-blur> Instance '%s' adding scene '%s'.", obs_source_get_name(m_source),
obs_source_get_name(scene_source));
obs_property_list_add_string(p,
std::string(std::string(obs_source_get_name(scene_source)) + " (Scene)").c_str(),
obs_source_get_name(scene_source));
return true;
});
/// Shared
p = obs_properties_add_color(pr, P_MASK_COLOR, P_TRANSLATE(P_MASK_COLOR));
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_COLOR)));
p = obs_properties_add_float_slider(pr, P_MASK_ALPHA, P_TRANSLATE(P_MASK_ALPHA), 0.0, 100.0, 0.1);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_ALPHA)));
p = obs_properties_add_float_slider(pr, P_MASK_MULTIPLIER, P_TRANSLATE(P_MASK_MULTIPLIER), 0.0, 10.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_MASK_MULTIPLIER)));
// Directional Blur
p = obs_properties_add_bool(pr, P_DIRECTIONAL, P_TRANSLATE(P_DIRECTIONAL));
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_DIRECTIONAL)));
obs_property_set_modified_callback2(p, modified_properties, this);
p = obs_properties_add_float_slider(pr, P_DIRECTIONAL_ANGLE, P_TRANSLATE(P_DIRECTIONAL_ANGLE), -180.0, 180.0, 0.01);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_DIRECTIONAL_ANGLE)));
// Scaling
p = obs_properties_add_bool(pr, P_STEPSCALE, P_TRANSLATE(P_STEPSCALE));
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_STEPSCALE)));
obs_property_set_modified_callback2(p, modified_properties, this);
p = obs_properties_add_float_slider(pr, P_STEPSCALE_X, P_TRANSLATE(P_STEPSCALE_X), 0.0, 1000.0, 0.01);
p = obs_properties_add_float_slider(pr, P_STEPSCALE_Y, P_TRANSLATE(P_STEPSCALE_Y), 0.0, 1000.0, 0.01);
// advanced
p = obs_properties_add_bool(pr, S_ADVANCED, P_TRANSLATE(S_ADVANCED));
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(S_ADVANCED)));
obs_property_set_modified_callback2(p, modified_properties, this);
p = obs_properties_add_list(pr, P_COLORFORMAT, P_TRANSLATE(P_COLORFORMAT), OBS_COMBO_TYPE_LIST,
OBS_COMBO_FORMAT_INT);
obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_COLORFORMAT)));
obs_property_list_add_int(p, "RGB", ColorFormat::RGB);
obs_property_list_add_int(p, "YUV", ColorFormat::YUV);
return pr;
}
void filter::blur::blur_instance::update(obs_data_t* settings)
{
type = (blur::type)obs_data_get_int(settings, P_TYPE);
blur_effect = blur_factory::get()->get_effect(type);
blur_technique = blur_factory::get()->get_technique(type);
size = (uint64_t)obs_data_get_int(settings, P_SIZE);
// bilateral blur
bilateral_smoothing = obs_data_get_double(settings, P_BILATERAL_SMOOTHING) / 100.0;
bilateral_sharpness = obs_data_get_double(settings, P_BILATERAL_SHARPNESS) / 100.0;
// region
mask.enabled = obs_data_get_bool(settings, P_MASK);
if (mask.enabled) {
mask.type = static_cast<mask_type>(obs_data_get_int(settings, P_MASK_TYPE));
switch (mask.type) {
case mask_type::Region:
mask.region.left = float_t(obs_data_get_double(settings, P_MASK_REGION_LEFT) / 100.0);
mask.region.top = float_t(obs_data_get_double(settings, P_MASK_REGION_TOP) / 100.0);
mask.region.right = 1.0f - float_t(obs_data_get_double(settings, P_MASK_REGION_RIGHT) / 100.0);
mask.region.bottom = 1.0f - float_t(obs_data_get_double(settings, P_MASK_REGION_BOTTOM) / 100.0);
mask.region.feather = float_t(obs_data_get_double(settings, P_MASK_REGION_FEATHER) / 100.0);
mask.region.feather_shift = float_t(obs_data_get_double(settings, P_MASK_REGION_FEATHER_SHIFT) / 100.0);
mask.region.invert = obs_data_get_bool(settings, P_MASK_REGION_INVERT);
break;
case mask_type::Image:
mask.image.path = obs_data_get_string(settings, P_MASK_IMAGE);
break;
case mask_type::Source:
mask.source.name = obs_data_get_string(settings, P_MASK_SOURCE);
break;
}
if ((mask.type == mask_type::Image) || (mask.type == mask_type::Source)) {
uint32_t color = static_cast<uint32_t>(obs_data_get_int(settings, P_MASK_COLOR));
mask.color.r = ((color >> 0) & 0xFF) / 255.0f;
mask.color.g = ((color >> 8) & 0xFF) / 255.0f;
mask.color.b = ((color >> 16) & 0xFF) / 255.0f;
mask.color.a = static_cast<float_t>(obs_data_get_double(settings, P_MASK_ALPHA));
mask.multiplier = float_t(obs_data_get_double(settings, P_MASK_MULTIPLIER));
}
}
// Directional Blur
this->directional = obs_data_get_bool(settings, P_DIRECTIONAL);
this->angle = obs_data_get_double(settings, P_DIRECTIONAL_ANGLE);
// Scaling
this->scaling = obs_data_get_bool(settings, P_STEPSCALE);
this->scale.first = obs_data_get_double(settings, P_STEPSCALE_X) / 100.0;
this->scale.second = obs_data_get_double(settings, P_STEPSCALE_Y) / 100.0;
// advanced
if (obs_data_get_bool(settings, S_ADVANCED)) {
color_format = obs_data_get_int(settings, P_COLORFORMAT);
} else {
color_format = obs_data_get_default_int(settings, P_COLORFORMAT);
}
}
uint32_t filter::blur::blur_instance::get_width()
{
return uint32_t(0);
}
uint32_t filter::blur::blur_instance::get_height()
{
return uint32_t(0);
}
void filter::blur::blur_instance::activate() {}
void filter::blur::blur_instance::deactivate() {}
void filter::blur::blur_instance::video_tick(float)
{
if (mask.type == mask_type::Image) {
if (mask.image.path_old != mask.image.path) {
try {
mask.image.texture = std::make_shared<gs::texture>(mask.image.path);
mask.image.path_old = mask.image.path;
} catch (...) {
P_LOG_ERROR("<filter-blur> Instance '%s' failed to load image '%s'.", obs_source_get_name(m_source),
mask.image.path.c_str());
}
}
} else if (mask.type == mask_type::Source) {
if (mask.source.name_old != mask.source.name) {
try {
mask.source.source_texture = std::make_shared<gfx::source_texture>(mask.source.name, m_source);
mask.source.is_scene = (obs_scene_from_source(mask.source.source_texture->get_object()) != nullptr);
mask.source.name_old = mask.source.name;
} catch (...) {
P_LOG_ERROR("<filter-blur> Instance '%s' failed to grab source '%s'.", obs_source_get_name(m_source),
mask.source.name.c_str());
}
}
}
}
void filter::blur::blur_instance::video_render(gs_effect_t* effect)
{
obs_source_t* parent = obs_filter_get_parent(this->m_source);
obs_source_t* target = obs_filter_get_target(this->m_source);
uint32_t baseW = obs_source_get_base_width(target);
uint32_t baseH = obs_source_get_base_height(target);
vec4 black = {0};
bool failed = false;
std::shared_ptr<gs::effect> colorConversionEffect = blur_factory::get()->get_color_converter_effect();
// Verify that we can actually run first.
if (!target || !parent || !this->m_source) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Invalid context, memory corruption may have happened.",
obs_source_get_name(this->m_source));
}
obs_source_skip_video_filter(this->m_source);
return;
}
if ((baseW == 0) || (baseH == 0)) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Invalid base size from '%s': %lux%lu.", obs_source_get_name(this->m_source),
obs_source_get_name(target), baseW, baseH);
}
obs_source_skip_video_filter(this->m_source);
return;
}
if (!this->rt_primary || !this->rt_secondary || !this->blur_effect) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Missing RenderTarget or Effect.", obs_source_get_name(this->m_source));
}
obs_source_skip_video_filter(this->m_source);
return;
}
gs_effect_t* defaultEffect = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
std::shared_ptr<gs::texture> tex_source;
std::shared_ptr<gs::texture> tex_intermediate;
// Source To Texture
{
gs_blend_state_push();
gs_reset_blend_state();
gs_enable_color(true, true, true, true);
gs_enable_blending(true);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
gs_depth_function(GS_ALWAYS);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_INVSRCALPHA);
gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
try {
auto op = this->rt_source->render(baseW, baseH);
// Orthographic Camera and clear RenderTarget.
gs_ortho(0, (float)baseW, 0, (float)baseH, -1., 1.);
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
// Render
if (obs_source_process_filter_begin(this->m_source, GS_RGBA, OBS_NO_DIRECT_RENDERING)) {
obs_source_process_filter_end(this->m_source, defaultEffect, baseW, baseH);
} else {
throw std::exception("Failed to render source");
}
} catch (std::exception ex) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Rendering parent source to texture failed with error: %s.",
obs_source_get_name(this->m_source), ex.what());
}
gs_blend_state_pop();
obs_source_skip_video_filter(this->m_source);
return;
}
gs_blend_state_pop();
if (!(tex_source = this->rt_source->get_texture())) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur> Failed to get source texture.");
}
obs_source_skip_video_filter(m_source);
return;
}
}
// Color Conversion RGB-YUV
if ((color_format == ColorFormat::YUV) && colorConversionEffect) {
gs_blend_state_push();
gs_reset_blend_state();
gs_enable_color(true, true, true, true);
gs_enable_blending(false);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
gs_depth_function(GS_ALWAYS);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
try {
auto op = this->rt_primary->render(baseW, baseH);
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
if (colorConversionEffect->has_parameter("image")) {
colorConversionEffect->get_parameter("image").set_texture(tex_source->get_object());
}
while (gs_effect_loop(colorConversionEffect->get_object(), "RGBToYUV")) {
gs_draw_sprite(tex_source->get_object(), 0, baseW, baseH);
}
} catch (std::exception ex) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> RGB-YUV conversion failed with error: %s.",
obs_source_get_name(this->m_source), ex.what());
}
gs_blend_state_pop();
obs_source_skip_video_filter(m_source);
return;
}
gs_blend_state_pop();
if (!(tex_source = this->rt_primary->get_texture())) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Failed to get color conversion texture.",
obs_source_get_name(this->m_source));
}
obs_source_skip_video_filter(m_source);
return;
}
// Swap RTs for further rendering.
std::swap(this->rt_primary, this->rt_secondary);
}
// Blur
{
gs_blend_state_push();
gs_reset_blend_state();
gs_enable_color(true, true, true, true);
gs_enable_blending(false);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
gs_depth_function(GS_ALWAYS);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
std::pair<float, float> kvs[] = {{1.0f / baseW, 0.0f}, {0.0f, 1.0f / baseH}};
tex_intermediate = tex_source; // We need the original to work.
// Directional Blur
if (this->directional) {
// Directional Blur changes how
kvs[0].first = (1.0f / baseW);
kvs[0].second = (1.0f / baseH);
kvs[1].first = kvs[0].first;
kvs[1].second = kvs[0].second;
double_t rad = this->angle * PI / 180.0;
double_t c0 = cos(rad);
double_t s0 = sin(rad);
kvs[0].first *= c0;
kvs[0].second *= s0;
if (!this->scaling) {
kvs[1].first *= 0.0;
kvs[1].second *= 0.0;
} else {
kvs[1].first *= s0;
kvs[1].second *= c0;
}
}
// Apply scaling
if (this->scaling) {
if (!this->directional) {
kvs[0].first *= float_t(this->scale.first);
kvs[0].second *= float_t(this->scale.second);
kvs[1].first *= float_t(this->scale.first);
kvs[1].second *= float_t(this->scale.second);
} else {
// Directional Blur changes how scaling works as it rotates and needs to be relative to the axis of rotation.
kvs[0].first *= float_t(this->scale.first);
kvs[0].second *= float_t(this->scale.first);
kvs[1].first *= float_t(this->scale.second);
kvs[1].second *= float_t(this->scale.second);
}
}
try {
for (auto v : kvs) {
float xpel = std::get<0>(v);
float ypel = std::get<1>(v);
if ((abs(xpel) <= FLT_EPSILON) && (abs(ypel) <= FLT_EPSILON)) {
// Ignore passes that have a 0 texel modifier.
continue;
}
{
auto op = this->rt_primary->render(baseW, baseH);
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
apply_shared_param(tex_intermediate->get_object(), xpel, ypel);
apply_gaussian_param(uint8_t(this->size));
apply_bilateral_param();
// Render
while (gs_effect_loop(this->blur_effect->get_object(), this->blur_technique.c_str())) {
gs_draw_sprite(tex_intermediate->get_object(), 0, baseW, baseH);
}
}
if (!(tex_intermediate = this->rt_primary->get_texture())) {
throw("Failed to get blur texture.");
}
// Swap RTs for further rendering.
std::swap(this->rt_primary, this->rt_secondary);
}
} catch (std::exception ex) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Blur failed with error: %s.", obs_source_get_name(this->m_source),
ex.what());
}
gs_blend_state_pop();
obs_source_skip_video_filter(this->m_source);
return;
}
gs_blend_state_pop();
}
// Mask
if (mask.enabled) {
gs_blend_state_push();
gs_reset_blend_state();
gs_enable_color(true, true, true, true);
gs_enable_blending(false);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
gs_depth_function(GS_ALWAYS);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
std::string technique = "";
switch (this->mask.type) {
case Region:
if (this->mask.region.feather > 0.001) {
if (this->mask.region.invert) {
technique = "RegionFeatherInverted";
} else {
technique = "RegionFeather";
}
} else {
if (this->mask.region.invert) {
technique = "RegionInverted";
} else {
technique = "Region";
}
}
break;
case Image:
case Source:
technique = "Image";
break;
}
if (mask.source.source_texture) {
uint32_t source_width = obs_source_get_width(this->mask.source.source_texture->get_object());
uint32_t source_height = obs_source_get_height(this->mask.source.source_texture->get_object());
if (source_width == 0) {
source_width = baseW;
}
if (source_height == 0) {
source_height = baseH;
}
if (this->mask.source.is_scene) {
obs_video_info ovi;
if (obs_get_video_info(&ovi)) {
source_width = ovi.base_width;
source_height = ovi.base_height;
}
}
this->mask.source.texture = this->mask.source.source_texture->render(source_width, source_height);
}
std::shared_ptr<gs::effect> mask_effect = blur_factory::get()->get_mask_effect();
apply_mask_parameters(mask_effect, tex_source->get_object(), tex_intermediate->get_object());
try {
auto op = this->rt_primary->render(baseW, baseH);
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
// Render
while (gs_effect_loop(mask_effect->get_object(), technique.c_str())) {
gs_draw_sprite(tex_intermediate->get_object(), 0, baseW, baseH);
}
} catch (std::exception ex) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Masking failed with error: %s.", obs_source_get_name(this->m_source),
ex.what());
}
gs_blend_state_pop();
obs_source_skip_video_filter(this->m_source);
return;
}
gs_blend_state_pop();
if (!(tex_intermediate = this->rt_primary->get_texture())) {
if (this->can_log()) {
P_LOG_ERROR("<filter-blur:%s> Failed to get masked texture.", obs_source_get_name(this->m_source));
}
obs_source_skip_video_filter(this->m_source);
return;
}
// Swap RTs for further rendering.
std::swap(this->rt_primary, this->rt_secondary);
}
// Color Conversion RGB-YUV or Straight Draw
{
// It is important that we do not modify the blend state here, as it is set correctly by OBS
gs_enable_color(true, true, true, true);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_set_cull_mode(GS_NEITHER);
gs_depth_function(GS_ALWAYS);
gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
gs_effect_t* finalEffect = effect ? effect : defaultEffect;
const char* technique = "Draw";
if ((color_format == ColorFormat::YUV) && colorConversionEffect) {
finalEffect = colorConversionEffect->get_object();
technique = "YUVToRGB";
}
gs_eparam_t* param = gs_effect_get_param_by_name(finalEffect, "image");
if (!param) {
P_LOG_ERROR("<filter-blur:%s> Failed to set image param.", obs_source_get_name(this->m_source));
failed = true;
} else {
gs_effect_set_texture(param, tex_intermediate->get_object());
}
while (gs_effect_loop(finalEffect, technique)) {
gs_draw_sprite(tex_intermediate->get_object(), 0, baseW, baseH);
}
}
if (failed) {
obs_source_skip_video_filter(m_source);
return;
}
}
filter::blur::blur_factory::blur_factory()
{
memset(&source_info, 0, sizeof(obs_source_info));
source_info.id = "obs-stream-effects-filter-blur";
source_info.type = OBS_SOURCE_TYPE_FILTER;
source_info.output_flags = OBS_SOURCE_VIDEO;
source_info.get_name = get_name;
source_info.get_defaults = get_defaults;
source_info.get_properties = get_properties;
source_info.create = create;
source_info.destroy = destroy;
source_info.update = update;
source_info.activate = activate;
source_info.deactivate = deactivate;
source_info.video_tick = video_tick;
source_info.video_render = video_render;
obs_register_source(&source_info);
auto osi = obs_get_signal_handler();
signal_handler_connect(osi, "source_create", scene_create_handler, this);
signal_handler_connect(osi, "source_destroy", scene_destroy_handler, this);
}
filter::blur::blur_factory::~blur_factory()
{
auto osi = obs_get_signal_handler();
signal_handler_disconnect(osi, "source_create", scene_create_handler, this);
signal_handler_disconnect(osi, "source_destroy", scene_destroy_handler, this);
}
void filter::blur::blur_factory::on_list_fill()
{
obs_enter_graphics();
{
char* file = obs_module_file("effects/blur.effect");
try {
blur_effect = std::make_shared<gs::effect>(file);
} catch (std::runtime_error ex) {
P_LOG_ERROR("<filter-blur> Loading effect '%s' failed with error(s): %s", file, ex.what());
}
bfree(file);
}
{
char* file = obs_module_file("effects/color-conversion.effect");
try {
color_converter_effect = std::make_shared<gs::effect>(file);
} catch (std::runtime_error ex) {
P_LOG_ERROR("<filter-blur> Loading effect '%s' failed with error(s): %s", file, ex.what());
}
bfree(file);
}
{
char* file = obs_module_file("effects/mask.effect");
try {
mask_effect = std::make_shared<gs::effect>(file);
} catch (std::runtime_error ex) {
P_LOG_ERROR("<filter-blur> Loading effect '%s' failed with error(s): %s", file, ex.what());
}
bfree(file);
}
generate_kernel_textures();
obs_leave_graphics();
}
void filter::blur::blur_factory::on_list_empty()
{
obs_enter_graphics();
blur_effect.reset();
kernels.clear();
color_converter_effect.reset();
mask_effect.reset();
obs_leave_graphics();
}
void filter::blur::blur_factory::generate_gaussian_kernels()
{
// 2D texture, horizontal is value, vertical is kernel size.
size_t size_power_of_two = size_t(pow(2, util::math::get_power_of_two_exponent_ceil(max_kernel_size)));
std::vector<float_t> texture_data(size_power_of_two * size_power_of_two);
std::vector<float_t> math_data(size_power_of_two);
std::shared_ptr<std::vector<float_t>> kernel_data;
for (size_t width = 1; width <= max_kernel_size; width++) {
size_t v = (width - 1) * size_power_of_two;
kernel_data = std::make_shared<std::vector<float_t>>(size_power_of_two);
// Calculate and normalize
float_t sum = 0;
for (size_t p = 0; p <= width; p++) {
math_data[p] = float_t(Gaussian1D(double_t(p), double_t(width)));
sum += math_data[p] * (p > 0 ? 2 : 1);
}
// Normalize to Texture Buffer
double_t inverse_sum = 1.0 / sum;
for (size_t p = 0; p <= width; p++) {
texture_data[v + p] = float_t(math_data[p] * inverse_sum);
kernel_data->at(p) = texture_data[v + p];
}
gaussian_kernels.insert({uint8_t(width), kernel_data});
}
// Create Texture
try {
auto texture_buffer = reinterpret_cast<uint8_t*>(texture_data.data());
auto unsafe_buffer = const_cast<const uint8_t**>(&texture_buffer);
kernels.insert_or_assign(filter::blur::type::Gaussian,
std::make_shared<gs::texture>(uint32_t(size_power_of_two), uint32_t(size_power_of_two),
GS_R32F, 1, unsafe_buffer, gs::texture::flags::None));
} catch (std::runtime_error ex) {
P_LOG_ERROR("<filter-blur> Failed to create gaussian kernel texture.");
}
}
void filter::blur::blur_factory::generate_kernel_textures()
{
generate_gaussian_kernels();
}
void* filter::blur::blur_factory::create(obs_data_t* data, obs_source_t* parent)
{
if (get()->sources.empty()) {
get()->on_list_fill();
}
filter::blur::blur_instance* ptr = new filter::blur::blur_instance(data, parent);
get()->sources.push_back(ptr);
return ptr;
}
void filter::blur::blur_factory::destroy(void* inptr)
{
filter::blur::blur_instance* ptr = reinterpret_cast<filter::blur::blur_instance*>(inptr);
get()->sources.remove(ptr);
if (get()->sources.empty()) {
get()->on_list_empty();
}
}
void filter::blur::blur_factory::get_defaults(obs_data_t* data)
{
obs_data_set_default_int(data, P_TYPE, filter::blur::type::Box);
obs_data_set_default_int(data, P_SIZE, 5);
// Bilateral Only
obs_data_set_default_double(data, P_BILATERAL_SMOOTHING, 50.0);
obs_data_set_default_double(data, P_BILATERAL_SHARPNESS, 90.0);
// Masking
obs_data_set_default_bool(data, P_MASK, false);
obs_data_set_default_int(data, P_MASK_TYPE, mask_type::Region);
obs_data_set_default_double(data, P_MASK_REGION_LEFT, 0.0);
obs_data_set_default_double(data, P_MASK_REGION_RIGHT, 0.0);
obs_data_set_default_double(data, P_MASK_REGION_TOP, 0.0);
obs_data_set_default_double(data, P_MASK_REGION_BOTTOM, 0.0);
obs_data_set_default_double(data, P_MASK_REGION_FEATHER, 0.0);
obs_data_set_default_double(data, P_MASK_REGION_FEATHER_SHIFT, 0.0);
obs_data_set_default_bool(data, P_MASK_REGION_INVERT, false);
char* default_file = obs_module_file("white.png");
obs_data_set_default_string(data, P_MASK_IMAGE, default_file);
bfree(default_file);
obs_data_set_default_string(data, P_MASK_SOURCE, "");
obs_data_set_default_int(data, P_MASK_COLOR, 0xFFFFFFFFull);
obs_data_set_default_double(data, P_MASK_MULTIPLIER, 1.0);
// Directional Blur
obs_data_set_default_bool(data, P_DIRECTIONAL, false);
obs_data_set_default_double(data, P_DIRECTIONAL_ANGLE, 0.0);
// Scaling
obs_data_set_default_bool(data, P_STEPSCALE, false);
obs_data_set_default_double(data, P_STEPSCALE_X, 100.0);
obs_data_set_default_double(data, P_STEPSCALE_Y, 100.0);
// Advanced
obs_data_set_default_bool(data, S_ADVANCED, false);
obs_data_set_default_int(data, P_COLORFORMAT, ColorFormat::RGB);
}
obs_properties_t* filter::blur::blur_factory::get_properties(void* inptr)
{
return reinterpret_cast<filter::blur::blur_instance*>(inptr)->get_properties();
}
void filter::blur::blur_factory::update(void* inptr, obs_data_t* settings)
{
reinterpret_cast<filter::blur::blur_instance*>(inptr)->update(settings);
}
const char* filter::blur::blur_factory::get_name(void* inptr)
{
inptr;
return P_TRANSLATE(SOURCE_NAME);
}
uint32_t filter::blur::blur_factory::get_width(void* inptr)
{
return reinterpret_cast<filter::blur::blur_instance*>(inptr)->get_width();
}
uint32_t filter::blur::blur_factory::get_height(void* inptr)
{
return reinterpret_cast<filter::blur::blur_instance*>(inptr)->get_height();
}
void filter::blur::blur_factory::activate(void* inptr)
{
reinterpret_cast<filter::blur::blur_instance*>(inptr)->activate();
}
void filter::blur::blur_factory::deactivate(void* inptr)
{
reinterpret_cast<filter::blur::blur_instance*>(inptr)->deactivate();
}
void filter::blur::blur_factory::video_tick(void* inptr, float delta)
{
reinterpret_cast<filter::blur::blur_instance*>(inptr)->video_tick(delta);
}
void filter::blur::blur_factory::video_render(void* inptr, gs_effect_t* effect)
{
reinterpret_cast<filter::blur::blur_instance*>(inptr)->video_render(effect);
}
void filter::blur::blur_factory::scene_create_handler(void* ptr, calldata_t* data)
{
filter::blur::blur_factory* self = reinterpret_cast<filter::blur::blur_factory*>(ptr);
obs_source_t* source = nullptr;
calldata_get_ptr(data, "source", &source);
obs_scene_t* scene = obs_scene_from_source(source);
if (scene) {
self->scenes.insert_or_assign(std::string(obs_source_get_name(source)), scene);
}
}
void filter::blur::blur_factory::scene_destroy_handler(void* ptr, calldata_t* data)
{
filter::blur::blur_factory* self = reinterpret_cast<filter::blur::blur_factory*>(ptr);
obs_source_t* source = nullptr;
calldata_get_ptr(data, "source", &source);
obs_scene_t* scene = obs_scene_from_source(source);
if (scene) {
self->scenes.erase(std::string(obs_source_get_name(source)));
}
}
std::shared_ptr<gs::effect> filter::blur::blur_factory::get_effect(filter::blur::type type)
{
type;
return blur_effect;
}
std::string filter::blur::blur_factory::get_technique(filter::blur::type type)
{
switch (type) {
case type::Box:
return "Box";
case type::Gaussian:
return "Gaussian";
case type::Bilateral:
return "Bilateral";
case type::BoxLinear:
return "BoxLinear";
case type::GaussianLinear:
return "GaussianLinear";
}
return "";
}
std::shared_ptr<gs::effect> filter::blur::blur_factory::get_color_converter_effect()
{
return color_converter_effect;
}
std::shared_ptr<gs::effect> filter::blur::blur_factory::get_mask_effect()
{
return mask_effect;
}
std::shared_ptr<gs::texture> filter::blur::blur_factory::get_kernel(filter::blur::type type)
{
return kernels.at(type);
}
std::shared_ptr<std::vector<float_t>> filter::blur::blur_factory::get_gaussian_kernel(uint8_t size)
{
return gaussian_kernels.at(size);
}
obs_scene_t* filter::blur::blur_factory::get_scene(std::string name)
{
auto kv = scenes.find(name);
if (kv != scenes.end()) {
return kv->second;
}
return nullptr;
}
void filter::blur::blur_factory::enum_scenes(std::function<bool(obs_scene_t*)> fnc)
{
for (auto kv : scenes) {
if (!fnc(kv.second)) {
break;
}
}
}
static filter::blur::blur_factory* factory_instance = nullptr;
void filter::blur::blur_factory::initialize()
{
factory_instance = new filter::blur::blur_factory();
}
void filter::blur::blur_factory::finalize()
{
delete factory_instance;
}
filter::blur::blur_factory* filter::blur::blur_factory::get()
{
return factory_instance;
}
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