mirror of https://github.com/Xaymar/obs-StreamFX
filter-blur: Add Box and Gaussian Blur Filter
This is not very optimized at the moment and will take quite a bit of GPU time. Will have to spend some time later to optimize it and perhaps add directional blur ("Motion Blur" to it).
This commit is contained in:
Michael Fabian Dirks
parent
ccdc5b750c
commit
5cdbb127c7
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@ -26,6 +26,7 @@ configure_file(
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SET(obs-stream-effects_HEADERS
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"${PROJECT_SOURCE_DIR}/source/plugin.h"
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"${PROJECT_SOURCE_DIR}/source/filter-displacement.h"
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"${PROJECT_SOURCE_DIR}/source/filter-blur.h"
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"${PROJECT_SOURCE_DIR}/source/filter-shape.h"
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"${PROJECT_SOURCE_DIR}/source/filter-transform.h"
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"${PROJECT_SOURCE_DIR}/source/gs-helper.h"
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@ -35,6 +36,7 @@ SET(obs-stream-effects_HEADERS
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SET(obs-stream-effects_SOURCES
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"${PROJECT_SOURCE_DIR}/source/plugin.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-displacement.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-blur.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-shape.cpp"
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"${PROJECT_SOURCE_DIR}/source/filter-transform.cpp"
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"${PROJECT_SOURCE_DIR}/source/gs-helper.cpp"
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@ -0,0 +1,85 @@
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uniform float4x4 ViewProj;
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uniform texture2d image;
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uniform int size;
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uniform float2 texel;
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sampler_state textureSampler {
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Filter = Point;
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AddressU = Clamp;
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AddressV = Clamp;
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};
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struct VertDataIn {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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struct VertDataOut {
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float4 pos : POSITION;
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float2 uv : TEXCOORD0;
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};
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VertDataOut VSDefault(VertDataIn v_in)
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{
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VertDataOut vert_out;
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vert_out.pos = mul(float4(v_in.pos.xyz, 1.0), ViewProj);
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vert_out.uv = v_in.uv;
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return vert_out;
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}
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// Box Blur
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float4 PSBox(VertDataOut v_in) : TARGET
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{
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float4 rgba = float4(0,0,0,0); //image.Sample(textureSampler, v_in.uv);
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float trueWidth = 1 + (size * 2);
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for (int k = -size; k <= size; k++) {
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rgba += image.Sample(textureSampler, v_in.uv + (texel * k));
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}
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rgba = rgba / trueWidth;
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return rgba;
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}
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technique Box
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{
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pass Horizontal
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PSBox(v_in);
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}
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pass Vertical
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PSBox(v_in);
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}
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}
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// Gaussian Blur
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float Gaussian(float x, float deviation) {
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return (1.0 / sqrt(2.0 * 3.141592 * deviation)) * exp(-((x * x) / (2.0 * deviation)));
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}
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float4 PSGaussian(VertDataOut v_in) : TARGET
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{
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float4 rgba = float4(0, 0, 0, 0);
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float trueWidth = 1.0 + (size * 2);
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for (int k = -size; k <= size; k++) {
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float4 smpl = image.Sample(textureSampler, v_in.uv + (texel * k));
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smpl *= Gaussian(k / trueWidth, 1.0);
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rgba += smpl;
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}
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return rgba;
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}
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technique Gaussian
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{
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pass Horizontal
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PSGaussian(v_in);
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}
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pass Vertical
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{
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vertex_shader = VSDefault(v_in);
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pixel_shader = PSGaussian(v_in);
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}
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}
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@ -32,4 +32,9 @@ Filter.Transform.Rotation.Order.ZYX="Roll, Yaw, Pitch"
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Filter.Transform.Rotation="Rotation"
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Filter.Transform.Rotation.X="Pitch (X)"
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Filter.Transform.Rotation.Y="Yaw (Y)"
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Filter.Transform.Rotation.Z="Roll (Z)"
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Filter.Transform.Rotation.Z="Roll (Z)"
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Filter.Blur="Blur"
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Filter.Blur.Type="Type"
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Filter.Blur.Type.Box="Box"
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Filter.Blur.Type.Gaussian="Gaussian"
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Filter.Blur.Size="Size (Pixel)"
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@ -0,0 +1,372 @@
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/*
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* 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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*/
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#include "filter-blur.h"
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#include "strings.h"
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extern "C" {
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#pragma warning (push)
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#pragma warning (disable: 4201)
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#include "libobs/util/platform.h"
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#include "libobs/graphics/graphics.h"
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#include "libobs/graphics/matrix4.h"
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#pragma warning (pop)
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}
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Filter::Blur::Blur() {
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memset(&sourceInfo, 0, sizeof(obs_source_info));
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sourceInfo.id = "obs-stream-effects-filter-blur";
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sourceInfo.type = OBS_SOURCE_TYPE_FILTER;
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sourceInfo.output_flags = OBS_SOURCE_VIDEO;
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sourceInfo.get_name = get_name;
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sourceInfo.get_defaults = get_defaults;
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sourceInfo.get_properties = get_properties;
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sourceInfo.create = create;
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sourceInfo.destroy = destroy;
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sourceInfo.update = update;
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sourceInfo.activate = activate;
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sourceInfo.deactivate = deactivate;
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sourceInfo.show = show;
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sourceInfo.hide = hide;
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sourceInfo.video_tick = video_tick;
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sourceInfo.video_render = video_render;
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obs_register_source(&sourceInfo);
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}
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Filter::Blur::~Blur() {}
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const char * Filter::Blur::get_name(void *) {
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return P_TRANSLATE(P_FILTER_BLUR);
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}
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void Filter::Blur::get_defaults(obs_data_t *data) {
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obs_data_set_default_int(data, P_FILTER_BLUR_TYPE, Filter::Blur::Type::Box);
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obs_data_set_default_int(data, P_FILTER_BLUR_SIZE, 1);
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}
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obs_properties_t * Filter::Blur::get_properties(void *) {
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obs_properties_t *pr = obs_properties_create();
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obs_property_t* p = NULL;
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p = obs_properties_add_list(pr, P_FILTER_BLUR_TYPE, P_TRANSLATE(P_FILTER_BLUR_TYPE),
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obs_combo_type::OBS_COMBO_TYPE_LIST, obs_combo_format::OBS_COMBO_FORMAT_INT);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_FILTER_BLUR_TYPE)));
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obs_property_list_add_int(p, P_TRANSLATE(P_FILTER_BLUR_TYPE_BOX), Filter::Blur::Type::Box);
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obs_property_list_add_int(p, P_TRANSLATE(P_FILTER_BLUR_TYPE_GAUSSIAN),
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Filter::Blur::Type::Gaussian);
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p = obs_properties_add_int_slider(pr, P_FILTER_BLUR_SIZE, P_TRANSLATE(P_FILTER_BLUR_SIZE),
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1, 100, 1);
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obs_property_set_long_description(p, P_TRANSLATE(P_DESC(P_FILTER_BLUR_SIZE)));
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return pr;
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}
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void * Filter::Blur::create(obs_data_t *data, obs_source_t *source) {
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return new Instance(data, source);
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}
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void Filter::Blur::destroy(void *ptr) {
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delete reinterpret_cast<Instance*>(ptr);
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}
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uint32_t Filter::Blur::get_width(void *ptr) {
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return reinterpret_cast<Instance*>(ptr)->get_width();
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}
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uint32_t Filter::Blur::get_height(void *ptr) {
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return reinterpret_cast<Instance*>(ptr)->get_height();
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}
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void Filter::Blur::update(void *ptr, obs_data_t *data) {
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reinterpret_cast<Instance*>(ptr)->update(data);
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}
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void Filter::Blur::activate(void *ptr) {
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reinterpret_cast<Instance*>(ptr)->activate();
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}
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void Filter::Blur::deactivate(void *ptr) {
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reinterpret_cast<Instance*>(ptr)->deactivate();
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}
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void Filter::Blur::show(void *ptr) {
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reinterpret_cast<Instance*>(ptr)->show();
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}
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void Filter::Blur::hide(void *ptr) {
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reinterpret_cast<Instance*>(ptr)->hide();
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}
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void Filter::Blur::video_tick(void *ptr, float time) {
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reinterpret_cast<Instance*>(ptr)->video_tick(time);
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}
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void Filter::Blur::video_render(void *ptr, gs_effect_t *effect) {
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reinterpret_cast<Instance*>(ptr)->video_render(effect);
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}
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Filter::Blur::Instance::Instance(obs_data_t *data, obs_source_t *context) : m_source(context) {
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obs_enter_graphics();
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{
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char* loadError = nullptr;
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char* file = obs_module_file("filter-blur/filter.effect");
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m_effect = gs_effect_create_from_file(file, &loadError);
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bfree(file);
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if (loadError != nullptr) {
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PLOG_ERROR("<filter-blur> Loading effect failed with error(s): %s", loadError);
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bfree(loadError);
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}
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}
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m_primaryRT = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
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m_secondaryRT = gs_texrender_create(GS_RGBA, GS_ZS_NONE);
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obs_leave_graphics();
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update(data);
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}
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Filter::Blur::Instance::~Instance() {
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obs_enter_graphics();
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gs_effect_destroy(m_effect);
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gs_texrender_destroy(m_primaryRT);
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gs_texrender_destroy(m_secondaryRT);
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obs_leave_graphics();
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}
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void Filter::Blur::Instance::update(obs_data_t *data) {
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switch (obs_data_get_int(data, P_FILTER_BLUR_TYPE)) {
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case Filter::Blur::Type::Box:
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m_technique = gs_effect_get_technique(m_effect, "Box");
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break;
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case Filter::Blur::Type::Gaussian:
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m_technique = gs_effect_get_technique(m_effect, "Gaussian");
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break;
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}
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m_filterWidth = (int)obs_data_get_int(data, P_FILTER_BLUR_SIZE);
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}
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uint32_t Filter::Blur::Instance::get_width() {
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return 0;
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}
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uint32_t Filter::Blur::Instance::get_height() {
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return 0;
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}
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void Filter::Blur::Instance::activate() {}
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void Filter::Blur::Instance::deactivate() {}
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void Filter::Blur::Instance::show() {}
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void Filter::Blur::Instance::hide() {}
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void Filter::Blur::Instance::video_tick(float) {}
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void Filter::Blur::Instance::video_render(gs_effect_t *effect) {
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obs_source_t
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*parent = obs_filter_get_parent(m_source),
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*target = obs_filter_get_target(m_source);
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uint32_t
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baseW = obs_source_get_base_width(target),
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baseH = obs_source_get_base_height(target);
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// Skip rendering if our target, parent or context is not valid.
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if (!target || !parent || !m_source || !m_effect || !m_primaryRT || !m_technique
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|| !baseW || !baseH) {
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obs_source_skip_video_filter(m_source);
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return;
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}
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gs_effect_t* defaultEffect = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
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gs_texture_t *sourceTexture = nullptr,
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*horizontalTexture = nullptr;
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#pragma region Source To Texture
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gs_texrender_reset(m_primaryRT);
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if (!gs_texrender_begin(m_primaryRT, baseW, baseH)) {
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PLOG_ERROR("<filter-blur> Failed to set up base texture.");
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obs_source_skip_video_filter(m_source);
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return;
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} else {
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gs_ortho(0, baseW, 0, baseH, -1, 1);
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// Clear to Black
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vec4 black;
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vec4_zero(&black);
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gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
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// Set up camera stuff
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gs_set_cull_mode(GS_NEITHER);
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gs_reset_blend_state();
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gs_blend_function_separate(
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gs_blend_type::GS_BLEND_ONE,
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gs_blend_type::GS_BLEND_ZERO,
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gs_blend_type::GS_BLEND_ONE,
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gs_blend_type::GS_BLEND_ZERO);
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gs_enable_depth_test(false);
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gs_enable_stencil_test(false);
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gs_enable_stencil_write(false);
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gs_enable_color(true, true, true, true);
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// Render
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if (obs_source_process_filter_begin(m_source, GS_RGBA, OBS_NO_DIRECT_RENDERING)) {
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obs_source_process_filter_end(m_source, effect ? effect : defaultEffect, baseW, baseH);
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} else {
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PLOG_ERROR("<filter-blur> Unable to render source.");
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obs_source_skip_video_filter(m_source);
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return;
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}
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gs_texrender_end(m_primaryRT);
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}
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sourceTexture = gs_texrender_get_texture(m_primaryRT);
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if (!sourceTexture) {
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PLOG_ERROR("<filter-blur> Failed to get source texture.");
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obs_source_skip_video_filter(m_source);
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return;
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}
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#pragma endregion Source To Texture
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#pragma region Horizontal Pass
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gs_texrender_reset(m_secondaryRT);
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if (!gs_texrender_begin(m_secondaryRT, baseW, baseH)) {
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PLOG_ERROR("<filter-blur> Failed set up horizontal pass.");
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obs_source_skip_video_filter(m_source);
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return;
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} else {
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gs_ortho(0, baseW, 0, baseH, -1, 1);
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// Clear to Black
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vec4 black;
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vec4_zero(&black);
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gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &black, 0, 0);
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// Set up camera stuff
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gs_set_cull_mode(GS_NEITHER);
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gs_reset_blend_state();
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gs_blend_function_separate(
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gs_blend_type::GS_BLEND_ONE,
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gs_blend_type::GS_BLEND_ZERO,
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gs_blend_type::GS_BLEND_ONE,
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gs_blend_type::GS_BLEND_ZERO);
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gs_enable_depth_test(false);
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gs_enable_stencil_test(false);
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gs_enable_stencil_write(false);
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gs_enable_color(true, true, true, true);
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// Prepare Effect
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gs_eparam_t *param = gs_effect_get_param_by_name(m_effect, "texel");
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if (param) {
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vec2 texel;
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vec2_set(&texel, (float)(1.0 / baseW), 0);
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gs_effect_set_vec2(param, &texel);
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} else {
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PLOG_ERROR("<filter-blur> Failed to set texel param.");
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obs_source_skip_video_filter(m_source);
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return;
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}
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param = gs_effect_get_param_by_name(m_effect, "size");
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if (param) {
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gs_effect_set_int(param, m_filterWidth);
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} else {
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PLOG_ERROR("<filter-blur> Failed to set size param.");
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obs_source_skip_video_filter(m_source);
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return;
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}
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param = gs_effect_get_param_by_name(m_effect, "image");
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if (param) {
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gs_effect_set_texture(param, sourceTexture);
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} else {
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PLOG_ERROR("<filter-blur> Failed to set image param.");
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obs_source_skip_video_filter(m_source);
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return;
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}
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// Render
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if (gs_technique_begin(m_technique)) {
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if (gs_technique_begin_pass_by_name(m_technique, "Horizontal")) {
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gs_draw_sprite(sourceTexture, 0, baseW, baseH);
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gs_technique_end_pass(m_technique);
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}
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gs_technique_end(m_technique);
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}
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gs_texrender_end(m_secondaryRT);
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}
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horizontalTexture = gs_texrender_get_texture(m_secondaryRT);
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if (!horizontalTexture) {
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PLOG_ERROR("<filter-blur> Failed to get horizontal pass texture.");
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obs_source_skip_video_filter(m_source);
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return;
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}
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#pragma endregion Horizontal Pass
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#pragma region Horizontal Pass
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// Prepare Effect
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gs_eparam_t *param = gs_effect_get_param_by_name(m_effect, "texel");
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if (param) {
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vec2 texel;
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vec2_set(&texel, 0, (float)(1.0 / baseH));
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gs_effect_set_vec2(param, &texel);
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} else {
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PLOG_ERROR("<filter-blur> Failed to set texel param.");
|
||||
obs_source_skip_video_filter(m_source);
|
||||
return;
|
||||
}
|
||||
param = gs_effect_get_param_by_name(m_effect, "size");
|
||||
if (param) {
|
||||
gs_effect_set_int(param, m_filterWidth);
|
||||
} else {
|
||||
PLOG_ERROR("<filter-blur> Failed to set size param.");
|
||||
obs_source_skip_video_filter(m_source);
|
||||
return;
|
||||
}
|
||||
param = gs_effect_get_param_by_name(m_effect, "image");
|
||||
if (param) {
|
||||
gs_effect_set_texture(param, horizontalTexture);
|
||||
} else {
|
||||
PLOG_ERROR("<filter-blur> Failed to set image param.");
|
||||
obs_source_skip_video_filter(m_source);
|
||||
return;
|
||||
}
|
||||
|
||||
// Render
|
||||
if (gs_technique_begin(m_technique)) {
|
||||
if (gs_technique_begin_pass_by_name(m_technique, "Vertical")) {
|
||||
gs_draw_sprite(horizontalTexture, 0, baseW, baseH);
|
||||
gs_technique_end_pass(m_technique);
|
||||
}
|
||||
gs_technique_end(m_technique);
|
||||
}
|
||||
#pragma endregion Horizontal Pass
|
||||
|
||||
|
||||
|
||||
|
||||
// Draw final shape
|
||||
//gs_reset_blend_state();
|
||||
//gs_enable_depth_test(false);
|
||||
//while (gs_effect_loop(defaultEffect, "Draw")) {
|
||||
// gs_effect_set_texture(gs_effect_get_param_by_name(defaultEffect, "image"), horizontalTexture);
|
||||
// gs_draw_sprite(horizontalTexture, 0, 0, 0);
|
||||
//}
|
||||
}
|
||||
|
|
@ -0,0 +1,89 @@
|
|||
/*
|
||||
* 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
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
#include "plugin.h"
|
||||
#include "gs-helper.h"
|
||||
|
||||
#define P_FILTER_BLUR "Filter.Blur"
|
||||
#define P_FILTER_BLUR_TYPE "Filter.Blur.Type"
|
||||
#define P_FILTER_BLUR_TYPE_BOX "Filter.Blur.Type.Box"
|
||||
#define P_FILTER_BLUR_TYPE_GAUSSIAN "Filter.Blur.Type.Gaussian"
|
||||
#define P_FILTER_BLUR_SIZE "Filter.Blur.Size"
|
||||
|
||||
namespace Filter {
|
||||
class Blur {
|
||||
public:
|
||||
Blur();
|
||||
~Blur();
|
||||
|
||||
static const char *get_name(void *);
|
||||
static void get_defaults(obs_data_t *);
|
||||
static obs_properties_t *get_properties(void *);
|
||||
|
||||
static void *create(obs_data_t *, obs_source_t *);
|
||||
static void destroy(void *);
|
||||
static uint32_t get_width(void *);
|
||||
static uint32_t get_height(void *);
|
||||
static void update(void *, obs_data_t *);
|
||||
static void activate(void *);
|
||||
static void deactivate(void *);
|
||||
static void show(void *);
|
||||
static void hide(void *);
|
||||
static void video_tick(void *, float);
|
||||
static void video_render(void *, gs_effect_t *);
|
||||
|
||||
enum Type : int64_t {
|
||||
Box,
|
||||
Gaussian,
|
||||
};
|
||||
|
||||
private:
|
||||
obs_source_info sourceInfo;
|
||||
|
||||
private:
|
||||
class Instance {
|
||||
public:
|
||||
Instance(obs_data_t*, obs_source_t*);
|
||||
~Instance();
|
||||
|
||||
void update(obs_data_t*);
|
||||
uint32_t get_width();
|
||||
uint32_t get_height();
|
||||
void activate();
|
||||
void deactivate();
|
||||
void show();
|
||||
void hide();
|
||||
void video_tick(float);
|
||||
void video_render(gs_effect_t*);
|
||||
|
||||
private:
|
||||
obs_source_t
|
||||
*m_source;
|
||||
gs_effect_t
|
||||
*m_effect;
|
||||
gs_technique_t
|
||||
*m_technique;
|
||||
gs_texrender_t
|
||||
*m_primaryRT,
|
||||
*m_secondaryRT;
|
||||
int m_filterWidth;
|
||||
};
|
||||
};
|
||||
}
|
||||
|
|
@ -18,6 +18,7 @@
|
|||
*/
|
||||
|
||||
#include "plugin.h"
|
||||
#include "filter-blur.h"
|
||||
#include "filter-displacement.h"
|
||||
#include "filter-shape.h"
|
||||
#include "filter-transform.h"
|
||||
|
|
@ -26,6 +27,7 @@ OBS_DECLARE_MODULE();
|
|||
OBS_MODULE_AUTHOR("Michael Fabian Dirks");
|
||||
OBS_MODULE_USE_DEFAULT_LOCALE("obs-stream-effects", "en-US");
|
||||
|
||||
Filter::Blur *filterBlur;
|
||||
Filter::Displacement *filterDisplacement;
|
||||
Filter::Shape *filterShape;
|
||||
Filter::Transform *filterTransform;
|
||||
|
|
@ -34,7 +36,7 @@ MODULE_EXPORT bool obs_module_load(void) {
|
|||
filterDisplacement = new Filter::Displacement();
|
||||
filterShape = new Filter::Shape();
|
||||
filterTransform = new Filter::Transform();
|
||||
|
||||
filterBlur = new Filter::Blur();
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -42,6 +44,7 @@ MODULE_EXPORT void obs_module_unload(void) {
|
|||
delete filterTransform;
|
||||
delete filterShape;
|
||||
delete filterDisplacement;
|
||||
delete filterBlur;
|
||||
}
|
||||
|
||||
MODULE_EXPORT const char* obs_module_name() {
|
||||
|
|
|
|||
Loading…
Reference in New Issue