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source-shader: Fix rendering and reapply parameters on change

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2019-08-07 18:43:34 +02:00
parent 181df6e3d9
commit 39e6959c67
2 changed files with 36 additions and 9 deletions
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31
source/sources/source-shader.cpp
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@ -61,7 +61,7 @@ source::shader::shader_factory::shader_factory()
memset(&_source_info, 0, sizeof(obs_source_info));
_source_info.id = "obs-stream-effects-source-shader";
_source_info.type = OBS_SOURCE_TYPE_INPUT;
_source_info.output_flags = OBS_SOURCE_VIDEO | OBS_SOURCE_CUSTOM_DRAW;
_source_info.output_flags = OBS_SOURCE_VIDEO;
_source_info.get_name = [](void*) { return D_TRANSLATE(ST); };
_source_info.get_defaults = get_defaults;
@ -181,6 +181,8 @@ source::shader::shader_instance::shader_instance(obs_data_t* data, obs_source_t*
_fx->set_valid_property_cb(std::bind(&source::shader::shader_instance::valid_param, this, std::placeholders::_1));
_fx->set_override_cb(std::bind(&source::shader::shader_instance::override_param, this, std::placeholders::_1));
_rt = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
update(data);
}
@ -231,10 +233,16 @@ void source::shader::shader_instance::override_param(std::shared_ptr<gs::effect>
void source::shader::shader_instance::video_tick(float_t sec_since_last)
{
_fx->tick(sec_since_last);
if (_fx->tick(sec_since_last)) {
obs_data_t* data = obs_source_get_settings(_self);
update(data);
obs_data_release(data);
}
_rt_updated = false;
}
void source::shader::shader_instance::video_render(gs_effect_t*)
void source::shader::shader_instance::video_render(gs_effect_t* effect)
{
// Grab initial values.
gs_effect_t* effect_default = obs_get_base_effect(obs_base_effect::OBS_EFFECT_DEFAULT);
@ -245,9 +253,24 @@ void source::shader::shader_instance::video_render(gs_effect_t*)
return;
}
if (!_rt_updated) {
try {
auto op = _rt->render(_width, _height);
_fx->render();
} catch (...) {
obs_source_skip_video_filter(_self);
}
_rt_tex = _rt->get_texture();
_rt_updated = true;
}
if (!_rt_tex)
return;
gs_effect_t* ef = effect ? effect : effect_default;
if (gs_eparam_t* prm = gs_effect_get_param_by_name(ef, "image"))
gs_effect_set_texture(prm, _rt_tex->get_object());
while (gs_effect_loop(ef, "Draw")) {
gs_draw_sprite(nullptr, 0, _width, _height);
}
}

4
source/sources/source-shader.hpp
View file

@ -48,6 +48,10 @@ namespace source {
uint32_t _width, _height;
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: