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https://github.com/Xaymar/obs-StreamFX
synced 2024-11-10 22:05:06 +00:00
gfx-shader: Support for filters and transitions
Due to render logic required for transitions, some of the render logic is split into an additional function called 'prepare_render'. Additionally the storage for some temporary objects has been removed as it these objects usually do not outlive their rendering time anyway. Related: #96 #95 #94 #5
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e66acbeb98
commit
6ae9904e13
2 changed files with 56 additions and 20 deletions
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@ -32,7 +32,7 @@
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#define ST_PARAMETERS ST ".Parameters"
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gfx::shader::shader::shader(obs_source_t* self, shader_mode mode)
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: _self(self), _mode(mode), _base_width(1), _base_height(1), _input_a(), _input_b(),
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: _self(self), _mode(mode), _base_width(1), _base_height(1),
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_shader(), _shader_file(), _shader_tech("Draw"), _shader_file_mt(), _shader_file_sz(), _shader_file_tick(0),
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@ -320,11 +320,7 @@ uint32_t gfx::shader::shader::width()
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case size_type::Pixel:
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return std::clamp(static_cast<uint32_t>(_width_value), 1u, 8192u);
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case size_type::Percent:
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if (_input_a) {
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return std::clamp(static_cast<uint32_t>(_width_value * _input_a->get_width()), 1u, 8192u);
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} else {
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return std::clamp(static_cast<uint32_t>(_width_value * _base_width), 1u, 8192u);
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}
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return std::clamp(static_cast<uint32_t>(_width_value * _base_width), 1u, 8192u);
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}
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default:
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return 0;
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@ -348,11 +344,7 @@ uint32_t gfx::shader::shader::height()
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case size_type::Pixel:
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return std::clamp(static_cast<uint32_t>(_height_value), 1u, 8192u);
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case size_type::Percent:
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if (_input_a) {
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return std::clamp(static_cast<uint32_t>(_height_value * _input_a->get_height()), 1u, 8192u);
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} else {
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return std::clamp(static_cast<uint32_t>(_height_value * _base_height), 1u, 8192u);
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}
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return std::clamp(static_cast<uint32_t>(_height_value * _base_height), 1u, 8192u);
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}
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default:
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return 0;
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@ -374,14 +366,11 @@ bool gfx::shader::shader::tick(float_t time)
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return false;
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}
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void gfx::shader::shader::render()
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void gfx::shader::shader::prepare_render()
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{
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if (!_shader)
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return;
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uint32_t szw = width();
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uint32_t szh = height();
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for (auto kv : _shader_params) {
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kv.second->assign();
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}
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@ -403,9 +392,15 @@ void gfx::shader::shader::render()
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1.0f / static_cast<float_t>(width()), 1.0f / static_cast<float_t>(height()));
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}
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}
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}
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void gfx::shader::shader::render()
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{
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if (!_shader)
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return;
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while (gs_effect_loop(_shader.get_object(), _shader_tech.c_str())) {
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gs_draw_sprite(nullptr, 0, szw, szh);
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gs_draw_sprite(nullptr, 0, width(), height());
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}
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}
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@ -417,10 +412,47 @@ void gfx::shader::shader::set_size(uint32_t w, uint32_t h)
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void gfx::shader::shader::set_input_a(std::shared_ptr<gs::texture> tex)
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{
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_input_a = tex;
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if (!_shader)
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return;
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if (gs::effect_parameter el = _shader.get_parameter("InputA"); el != nullptr) {
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if (el.get_type() == gs::effect_parameter::type::Texture) {
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el.set_texture(tex);
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}
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}
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}
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void gfx::shader::shader::set_input_b(std::shared_ptr<gs::texture> tex)
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{
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_input_b = tex;
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if (!_shader)
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return;
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if (gs::effect_parameter el = _shader.get_parameter("InputB"); el != nullptr) {
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if (el.get_type() == gs::effect_parameter::type::Texture) {
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el.set_texture(tex);
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}
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}
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}
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void gfx::shader::shader::set_transition_time(float_t t)
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{
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if (!_shader)
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return;
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if (gs::effect_parameter el = _shader.get_parameter("TransitionTime"); el != nullptr) {
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if (el.get_type() == gs::effect_parameter::type::Float) {
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el.set_float(t);
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}
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}
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}
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void gfx::shader::shader::set_transition_size(uint32_t w, uint32_t h)
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{
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if (!_shader)
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return;
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if (gs::effect_parameter el = _shader.get_parameter("TransitionSize"); el != nullptr) {
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if (el.get_type() == gs::effect_parameter::type::Integer2) {
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el.set_int2(w, h);
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}
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}
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}
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@ -59,8 +59,6 @@ namespace gfx {
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shader_mode _mode;
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uint32_t _base_width;
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uint32_t _base_height;
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std::shared_ptr<gs::texture> _input_a;
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std::shared_ptr<gs::texture> _input_b;
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// Shader
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gs::effect _shader;
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@ -107,6 +105,8 @@ namespace gfx {
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bool tick(float_t time);
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void prepare_render();
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void render();
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public:
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@ -115,6 +115,10 @@ namespace gfx {
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void set_input_a(std::shared_ptr<gs::texture> tex);
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void set_input_b(std::shared_ptr<gs::texture> tex);
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void set_transition_time(float_t t);
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void set_transition_size(uint32_t w, uint32_t h);
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};
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} // namespace shader
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} // namespace gfx
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