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filter-custom-shader: Add new callbacks

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2019-08-07 17:37:52 +02:00
parent 335847945d
commit 8ec8a22928
2 changed files with 65 additions and 7 deletions
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62
source/filters/filter-custom-shader.cpp
View file

@ -148,6 +148,9 @@ filter::shader::shader_instance::shader_instance(obs_data_t* data, obs_source_t*
: _self(self), _active(true), _width(0), _height(0)
{
_fx = std::make_shared<gfx::effect_source::effect_source>();
_fx->set_valid_property_cb(std::bind(&filter::shader::shader_instance::valid_param, this, std::placeholders::_1));
_fx->set_override_cb(std::bind(&filter::shader::shader_instance::override_param, this, std::placeholders::_1));
_rt = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
update(data);
@ -165,11 +168,13 @@ uint32_t filter::shader::shader_instance::height()
return _height;
}
void filter::shader::shader_instance::properties(obs_properties_t* props) {
void filter::shader::shader_instance::properties(obs_properties_t* props)
{
_fx->properties(props);
}
void filter::shader::shader_instance::update(obs_data_t* data) {
void filter::shader::shader_instance::update(obs_data_t* data)
{
_fx->update(data);
}
@ -183,6 +188,34 @@ void filter::shader::shader_instance::deactivate()
_active = false;
}
bool filter::shader::shader_instance::valid_param(std::shared_ptr<gs::effect_parameter> param)
{
if (strcmpi(param->get_name().c_str(), "ImageSource"))
return false;
if (strcmpi(param->get_name().c_str(), "ImageSource_Size"))
return false;
if (strcmpi(param->get_name().c_str(), "ImageSource_Texel"))
return false;
return true;
}
void filter::shader::shader_instance::override_param(std::shared_ptr<gs::effect> effect)
{
auto p_source = effect->get_parameter("ImageSource");
auto p_source_size = effect->get_parameter("ImageSource_Size");
auto p_source_texel = effect->get_parameter("ImageSource_Texel");
if (p_source && (p_source->get_type() == gs::effect_parameter::type::Texture)) {
p_source->set_texture(_rt_tex);
}
if (p_source_size && (p_source_size->get_type() == gs::effect_parameter::type::Float2)) {
p_source_size->set_float2(_width, _height);
}
if (p_source_texel && (p_source_size->get_type() == gs::effect_parameter::type::Float2)) {
p_source_texel->set_float2(1.0f / _width, 1.0f / _height);
}
}
void filter::shader::shader_instance::video_tick(float_t sec_since_last)
{
obs_source_t* target = obs_filter_get_target(_self);
@ -193,6 +226,8 @@ void filter::shader::shader_instance::video_tick(float_t sec_since_last)
}
_fx->tick(sec_since_last);
_rt_updated = false;
}
void filter::shader::shader_instance::video_render(gs_effect_t* effect)
@ -200,16 +235,33 @@ void filter::shader::shader_instance::video_render(gs_effect_t* effect)
// Grab initial values.
obs_source_t* parent = obs_filter_get_parent(_self);
obs_source_t* target = obs_filter_get_target(_self);
uint32_t width = obs_source_get_base_width(target);
uint32_t height = obs_source_get_base_height(target);
gs_effect_t* effect_default = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
// Skip filter if anything is wrong.
if (!_active || !parent || !target || !width || !height || !effect_default) {
if (!_active || !parent || !target || !_width || !_height || !effect_default) {
obs_source_skip_video_filter(_self);
return;
}
if (!_rt_updated) {
if (obs_source_process_filter_begin(_self, GS_RGBA, OBS_ALLOW_DIRECT_RENDERING)) {
auto op = _rt->render(_width, _height);
gs_blend_state_push();
gs_reset_blend_state();
gs_set_cull_mode(GS_NEITHER);
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_ortho(0, static_cast<float_t>(_width), 0, static_cast<float_t>(_height), -1., 1.);
obs_source_process_filter_end(_self, effect_default, _width, _height);
gs_blend_state_pop();
}
_rt_tex = _rt->get_texture();
_rt_updated = true;
}
try {
_fx->render();
} catch (...) {

10
source/filters/filter-custom-shader.hpp
View file

@ -19,9 +19,9 @@
#pragma once
#include "plugin.hpp"
#include "gfx/gfx-effect-source.hpp"
#include "obs/gs/gs-rendertarget.hpp"
#include "plugin.hpp"
extern "C" {
#include <obs.h>
@ -48,7 +48,10 @@ namespace filter {
uint32_t _width, _height;
std::shared_ptr<gs::rendertarget> _rt;
std::shared_ptr<gs::rendertarget> _rt;
bool _rt_updated;
std::shared_ptr<gs::texture> _rt_tex;
std::shared_ptr<gfx::effect_source::effect_source> _fx;
public:
@ -65,6 +68,9 @@ namespace filter {
void activate();
void deactivate();
bool valid_param(std::shared_ptr<gs::effect_parameter> param);
void override_param(std::shared_ptr<gs::effect> effect);
void video_tick(float_t sec_since_last);
void video_render(gs_effect_t* effect);
};