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obs-StreamFX/source/filter-blur.cpp
Michael Fabian 'Xaymar' Dirks daad792eda filter-blur: Add support for scene as mask input (#14) 
Adds full support for Scenes as mask input so that you can re-use your overlay scene as a blur input and have the blur follow behind your overlay.

Closes #14
2018-10-01 01:03:48 +02:00

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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 <inttypes.h>
#include <map>
#include <math.h>
#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_GAUSSIAN "Filter.Blur.Type.Gaussian"
#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_COLORFORMAT "Filter.Blur.ColorFormat"
#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"
// Initializer & Finalizer
INITIALIZER(filterBlurFactoryInitializer)
{
initializerFunctions.push_back([] { filter::blur::factory::initialize(); });
finalizerFunctions.push_back([] { filter::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::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::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::instance::apply_gaussian_param()
{
std::shared_ptr<gs::texture> kernel = filter::blur::factory::get()->get_kernel(filter::blur::type::Gaussian);
if (blur_effect->has_parameter("kernel")) {
blur_effect->get_parameter("kernel").set_texture(kernel);
} else {
return false;
}
if (blur_effect->has_parameter("kernelTexel")) {
float_t wb = 1.0f / kernel->get_width();
float_t hb = 1.0f / kernel->get_height();
blur_effect->get_parameter("kernelTexel").set_float2(wb, hb);
}
return true;
}
bool filter::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::instance::modified_properties(void* ptr, obs_properties_t* props, obs_property* prop,
obs_data_t* settings)
{
bool showBilateral = (obs_data_get_int(settings, P_TYPE) == type::Bilateral);
prop;
ptr;
// bilateral blur
obs_property_set_visible(obs_properties_get(props, P_BILATERAL_SMOOTHING), showBilateral);
obs_property_set_visible(obs_properties_get(props, P_BILATERAL_SHARPNESS), showBilateral);
// 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);
// advanced
bool showAdvanced = obs_data_get_bool(settings, S_ADVANCED);
obs_property_set_visible(obs_properties_get(props, P_COLORFORMAT), showAdvanced);
return true;
}
filter::blur::instance::instance(obs_data_t* settings, obs_source_t* parent)
{
m_source = parent;
obs_enter_graphics();
blur_effect = filter::blur::factory::get()->get_effect(filter::blur::type::Box);
primary_rendertarget = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
secondary_rendertarget = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
horizontal_rendertarget = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
vertical_rendertarget = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
obs_leave_graphics();
if (!primary_rendertarget) {
P_LOG_ERROR("<filter-blur> Instance '%s' failed to create primary rendertarget.",
obs_source_get_name(m_source));
}
if (!secondary_rendertarget) {
P_LOG_ERROR("<filter-blur> Instance '%s' failed to create secondary rendertarget.",
obs_source_get_name(m_source));
}
if (!horizontal_rendertarget) {
P_LOG_ERROR("<filter-blur> Instance '%s' failed to create horizontal rendertarget.",
obs_source_get_name(m_source));
}
if (!vertical_rendertarget) {
P_LOG_ERROR("<filter-blur> Instance '%s' failed to create vertical rendertarget.",
obs_source_get_name(m_source));
}
update(settings);
}
filter::blur::instance::~instance()
{
obs_enter_graphics();
gs_texrender_destroy(primary_rendertarget);
gs_texrender_destroy(secondary_rendertarget);
gs_texrender_destroy(horizontal_rendertarget);
gs_texrender_destroy(vertical_rendertarget);
obs_leave_graphics();
}
obs_properties_t* filter::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_GAUSSIAN), filter::blur::type::Gaussian);
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);
factory::get()->enum_scenes([this, p](obs_scene_t* scene) {
struct data {
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)));
// 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::instance::update(obs_data_t* settings)
{
type = (blur::type)obs_data_get_int(settings, P_TYPE);
blur_effect = factory::get()->get_effect(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));
}
}
// 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::instance::get_width()
{
return uint32_t(0);
}
uint32_t filter::blur::instance::get_height()
{
return uint32_t(0);
}
void filter::blur::instance::activate() {}
void filter::blur::instance::deactivate() {}
void filter::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::instance::video_render(gs_effect_t* effect)
{
obs_source_t* parent = obs_filter_get_parent(m_source);
obs_source_t* target = obs_filter_get_target(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 = factory::get()->get_color_converter_effect();
// Skip rendering if our target, parent or context is not valid.
if (!target || !parent || !m_source) {
obs_source_skip_video_filter(m_source);
return;
}
if ((baseW == 0) || (baseH == 0)) {
if (!have_logged_error)
P_LOG_ERROR("<filter-blur> Instance '%s' has invalid size source '%s'.", obs_source_get_name(m_source),
obs_source_get_name(target));
have_logged_error = true;
obs_source_skip_video_filter(m_source);
return;
}
if (!primary_rendertarget || !blur_effect) {
if (!have_logged_error)
P_LOG_ERROR("<filter-blur> Instance '%s' is unable to render.", obs_source_get_name(m_source),
obs_source_get_name(target));
have_logged_error = true;
obs_source_skip_video_filter(m_source);
return;
}
have_logged_error = false;
gs_effect_t* defaultEffect = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
gs_texture_t* sourceTexture = nullptr;
#pragma region Source To Texture
gs_texrender_reset(primary_rendertarget);
if (!gs_texrender_begin(primary_rendertarget, baseW, baseH)) {
P_LOG_ERROR("<filter-blur> Failed to set up base texture.");
obs_source_skip_video_filter(m_source);
return;
} else {
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
// Clear to Black
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
// Render
if (obs_source_process_filter_begin(m_source, GS_RGBA, OBS_NO_DIRECT_RENDERING)) {
obs_source_process_filter_end(m_source, effect ? effect : defaultEffect, baseW, baseH);
} else {
P_LOG_ERROR("<filter-blur> Unable to render source.");
failed = true;
}
gs_texrender_end(primary_rendertarget);
}
if (failed) {
obs_source_skip_video_filter(m_source);
return;
}
sourceTexture = gs_texrender_get_texture(primary_rendertarget);
if (!sourceTexture) {
P_LOG_ERROR("<filter-blur> Failed to get source texture.");
obs_source_skip_video_filter(m_source);
return;
}
#pragma endregion Source To Texture
// Conversion
#pragma region RGB->YUV
if ((color_format == ColorFormat::YUV) && colorConversionEffect) {
gs_texrender_reset(secondary_rendertarget);
if (!gs_texrender_begin(secondary_rendertarget, baseW, baseH)) {
P_LOG_ERROR("<filter-blur> Failed to set up base texture.");
obs_source_skip_video_filter(m_source);
return;
} else {
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
// Clear to Black
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
// Set up camera stuff
gs_set_cull_mode(GS_NEITHER);
gs_reset_blend_state();
gs_enable_blending(false);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_enable_color(true, true, true, true);
if (colorConversionEffect->has_parameter("image")) {
colorConversionEffect->get_parameter("image").set_texture(sourceTexture);
}
while (gs_effect_loop(colorConversionEffect->get_object(), "RGBToYUV")) {
gs_draw_sprite(sourceTexture, 0, baseW, baseH);
}
gs_texrender_end(secondary_rendertarget);
}
if (failed) {
obs_source_skip_video_filter(m_source);
return;
}
sourceTexture = gs_texrender_get_texture(secondary_rendertarget);
if (!sourceTexture) {
P_LOG_ERROR("<filter-blur> Failed to get source texture.");
obs_source_skip_video_filter(m_source);
return;
}
}
#pragma endregion RGB->YUV
#pragma region blur
// Set up camera stuff
gs_set_cull_mode(GS_NEITHER);
gs_reset_blend_state();
gs_enable_blending(true);
gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_enable_color(true, true, true, true);
gs_texture_t* blurred = nullptr;
gs_texture_t* intermediate = sourceTexture;
std::tuple<const char*, gs_texrender_t*, float, float> kvs[] = {
std::make_tuple("Horizontal", horizontal_rendertarget, 1.0f / baseW, 0.0f),
std::make_tuple("Vertical", vertical_rendertarget, 0.0f, 1.0f / baseH),
};
std::string pass = "Draw";
for (auto v : kvs) {
const char* name = std::get<0>(v);
gs_texrender_t* rt = std::get<1>(v);
float xpel = std::get<2>(v), ypel = std::get<3>(v);
if (!apply_shared_param(intermediate, xpel, ypel))
break;
switch (type) {
case Gaussian:
apply_gaussian_param();
break;
case Bilateral:
apply_bilateral_param();
break;
}
gs_texrender_reset(rt);
if (!gs_texrender_begin(rt, baseW, baseH)) {
P_LOG_ERROR("<filter-blur:%s> Failed to begin rendering.", name);
break;
}
// Camera
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
// Render
while (gs_effect_loop(blur_effect->get_object(), pass.c_str())) {
gs_draw_sprite(intermediate, 0, baseW, baseH);
}
gs_texrender_end(rt);
intermediate = gs_texrender_get_texture(rt);
if (!intermediate) {
P_LOG_ERROR("<filter-blur:%s> Failed to get intermediate texture.", name);
break;
}
blurred = intermediate;
}
if (blurred == nullptr) {
obs_source_skip_video_filter(m_source);
return;
}
#pragma endregion blur
#pragma region Mask
if (mask.enabled) {
std::string technique = "";
switch (mask.type) {
case Region:
if (mask.region.feather > 0.001) {
if (mask.region.invert) {
technique = "RegionFeatherInverted";
} else {
technique = "RegionFeather";
}
} else {
if (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(mask.source.source_texture->get_object());
uint32_t source_height = obs_source_get_height(mask.source.source_texture->get_object());
if (source_width == 0) {
source_width = baseW;
}
if (source_height == 0) {
source_height = baseH;
}
if (mask.source.is_scene) {
obs_video_info ovi;
if (obs_get_video_info(&ovi)) {
source_width = ovi.base_width;
source_height = ovi.base_height;
}
}
mask.source.texture = mask.source.source_texture->render(source_width, source_height);
}
std::shared_ptr<gs::effect> mask_effect = factory::get()->get_mask_effect();
apply_mask_parameters(mask_effect, sourceTexture, blurred);
gs_texrender_reset(horizontal_rendertarget);
if (gs_texrender_begin(horizontal_rendertarget, baseW, baseH)) {
// Camera
gs_ortho(0, (float)baseW, 0, (float)baseH, -1, 1);
gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
// Render
while (gs_effect_loop(mask_effect->get_object(), technique.c_str())) {
gs_draw_sprite(blurred, 0, baseW, baseH);
}
gs_texrender_end(horizontal_rendertarget);
blurred = gs_texrender_get_texture(horizontal_rendertarget);
}
}
#pragma endregion
#pragma region YUV->RGB or straight draw
// Draw final effect
{
gs_effect_t* finalEffect = defaultEffect;
const char* technique = "Draw";
if ((color_format == ColorFormat::YUV) && colorConversionEffect) {
finalEffect = colorConversionEffect->get_object();
technique = "YUVToRGB";
}
// Set up camera stuff
gs_set_cull_mode(GS_NEITHER);
gs_reset_blend_state();
gs_enable_blending(true);
gs_blend_function(GS_BLEND_SRCALPHA, GS_BLEND_INVSRCALPHA);
gs_enable_depth_test(false);
gs_enable_stencil_test(false);
gs_enable_stencil_write(false);
gs_enable_color(true, true, true, true);
gs_eparam_t* param = gs_effect_get_param_by_name(finalEffect, "image");
if (!param) {
P_LOG_ERROR("<filter-blur:Final> Failed to set image param.");
failed = true;
} else {
gs_effect_set_texture(param, blurred);
}
while (gs_effect_loop(finalEffect, technique)) {
gs_draw_sprite(blurred, 0, baseW, baseH);
}
}
#pragma endregion YUV->RGB or straight draw
if (failed) {
obs_source_skip_video_filter(m_source);
return;
}
}
filter::blur::factory::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::factory::~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::factory::on_list_fill()
{
obs_enter_graphics();
{
char* file = obs_module_file("effects/box-blur.effect");
try {
effects.insert_or_assign(type::Box, 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/gaussian-blur.effect");
try {
effects.insert_or_assign(type::Gaussian, 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/bilateral-blur.effect");
try {
effects.insert_or_assign(type::Bilateral, 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::factory::on_list_empty()
{
obs_enter_graphics();
effects.clear();
kernels.clear();
color_converter_effect.reset();
mask_effect.reset();
obs_leave_graphics();
}
void filter::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);
for (size_t width = 1; width <= max_kernel_size; width++) {
size_t v = (width - 1) * 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);
}
}
// 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::factory::generate_kernel_textures()
{
generate_gaussian_kernels();
}
void* filter::blur::factory::create(obs_data_t* data, obs_source_t* parent)
{
if (get()->sources.empty()) {
get()->on_list_fill();
}
filter::blur::instance* ptr = new filter::blur::instance(data, parent);
get()->sources.push_back(ptr);
return ptr;
}
void filter::blur::factory::destroy(void* inptr)
{
filter::blur::instance* ptr = reinterpret_cast<filter::blur::instance*>(inptr);
get()->sources.remove(ptr);
if (get()->sources.empty()) {
get()->on_list_empty();
}
}
void filter::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);
// region
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, 0.0f);
obs_data_set_default_double(data, P_MASK_REGION_RIGHT, 0.0f);
obs_data_set_default_double(data, P_MASK_REGION_TOP, 0.0f);
obs_data_set_default_double(data, P_MASK_REGION_BOTTOM, 0.0f);
obs_data_set_default_double(data, P_MASK_REGION_FEATHER, 0.0f);
obs_data_set_default_double(data, P_MASK_REGION_FEATHER_SHIFT, 0.0f);
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);
// 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::factory::get_properties(void* inptr)
{
return reinterpret_cast<filter::blur::instance*>(inptr)->get_properties();
}
void filter::blur::factory::update(void* inptr, obs_data_t* settings)
{
reinterpret_cast<filter::blur::instance*>(inptr)->update(settings);
}
const char* filter::blur::factory::get_name(void* inptr)
{
inptr;
return P_TRANSLATE(SOURCE_NAME);
}
uint32_t filter::blur::factory::get_width(void* inptr)
{
return reinterpret_cast<filter::blur::instance*>(inptr)->get_width();
}
uint32_t filter::blur::factory::get_height(void* inptr)
{
return reinterpret_cast<filter::blur::instance*>(inptr)->get_height();
}
void filter::blur::factory::activate(void* inptr)
{
reinterpret_cast<filter::blur::instance*>(inptr)->activate();
}
void filter::blur::factory::deactivate(void* inptr)
{
reinterpret_cast<filter::blur::instance*>(inptr)->deactivate();
}
void filter::blur::factory::video_tick(void* inptr, float delta)
{
reinterpret_cast<filter::blur::instance*>(inptr)->video_tick(delta);
}
void filter::blur::factory::video_render(void* inptr, gs_effect_t* effect)
{
reinterpret_cast<filter::blur::instance*>(inptr)->video_render(effect);
}
void filter::blur::factory::scene_create_handler(void* ptr, calldata_t* data)
{
filter::blur::factory* self = reinterpret_cast<filter::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::factory::scene_destroy_handler(void* ptr, calldata_t* data)
{
filter::blur::factory* self = reinterpret_cast<filter::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::factory::get_effect(filter::blur::type type)
{
return effects.at(type);
}
std::shared_ptr<gs::effect> filter::blur::factory::get_color_converter_effect()
{
return color_converter_effect;
}
std::shared_ptr<gs::effect> filter::blur::factory::get_mask_effect()
{
return mask_effect;
}
std::shared_ptr<gs::texture> filter::blur::factory::get_kernel(filter::blur::type type)
{
return kernels.at(type);
}
obs_scene_t* filter::blur::factory::get_scene(std::string name)
{
auto kv = scenes.find(name);
if (kv != scenes.end()) {
return kv->second;
}
return nullptr;
}
void filter::blur::factory::enum_scenes(std::function<bool(obs_scene_t*)> fnc)
{
for (auto kv : scenes) {
if (!fnc(kv.second)) {
break;
}
}
}
static filter::blur::factory* factory_instance = nullptr;
void filter::blur::factory::initialize()
{
factory_instance = new filter::blur::factory();
}
void filter::blur::factory::finalize()
{
delete factory_instance;
}
filter::blur::factory* filter::blur::factory::get()
{
return factory_instance;
}
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