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gs-effect-parameter: Refactor effect_parameter onto std::shared_ptr

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Prevents problems further down the line and supports multiple types of parents to ensure that lifetime is guaranteed.
This commit is contained in:
Michael Fabian 'Xaymar' Dirks 2019-12-15 10:35:29 +01:00
parent 0ad896e905
commit 50ac6893bf
3 changed files with 202 additions and 0 deletions
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2
CMakeLists.txt
View file

@ -328,6 +328,8 @@ set(PROJECT_PRIVATE_SOURCE
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-helper.cpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect.hpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect.cpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect-parameter.hpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect-parameter.cpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect-pass.hpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect-pass.cpp"
"${PROJECT_SOURCE_DIR}/source/obs/gs/gs-effect-technique.hpp"

131
source/obs/gs/gs-effect-parameter.cpp Normal file
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@ -0,0 +1,131 @@
/*
* Modern effects for a modern Streamer
* Copyright (C) 2019 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 "gs-effect-parameter.hpp"
#include <cstring>
#include <stdexcept>
#include "gs-effect-pass.hpp"
#include <graphics/effect.h>
gs::effect_parameter::effect_parameter(gs_eparam_t* param)
: _effect_parent(nullptr), _pass_parent(nullptr), _param_parent(nullptr)
{
reset(param, [](void*) {});
}
gs::effect_parameter::effect_parameter(gs_eparam_t* param, std::shared_ptr<gs_effect_t>* parent)
: effect_parameter(param)
{
_effect_parent = parent;
}
gs::effect_parameter::effect_parameter(gs_eparam_t* param, std::shared_ptr<gs_epass_t>* parent)
: effect_parameter(param)
{
_pass_parent = parent;
}
gs::effect_parameter::effect_parameter(gs_eparam_t* param, std::shared_ptr<gs_eparam_t>* parent)
: effect_parameter(param)
{
_param_parent = parent;
}
gs::effect_parameter::~effect_parameter() {}
std::string gs::effect_parameter::get_name()
{
return std::string(get()->name, get()->name + strnlen_s(get()->name, 256));
}
gs::effect_parameter::type gs::effect_parameter::get_type()
{
switch (get()->type) {
case GS_SHADER_PARAM_BOOL:
return type::Boolean;
case GS_SHADER_PARAM_FLOAT:
return type::Float;
case GS_SHADER_PARAM_VEC2:
return type::Float2;
case GS_SHADER_PARAM_VEC3:
return type::Float3;
case GS_SHADER_PARAM_VEC4:
return type::Float4;
case GS_SHADER_PARAM_INT:
return type::Integer;
case GS_SHADER_PARAM_INT2:
return type::Integer2;
case GS_SHADER_PARAM_INT3:
return type::Integer3;
case GS_SHADER_PARAM_INT4:
return type::Integer4;
case GS_SHADER_PARAM_MATRIX4X4:
return type::Matrix;
case GS_SHADER_PARAM_TEXTURE:
return type::Texture;
case GS_SHADER_PARAM_STRING:
return type::String;
default:
case GS_SHADER_PARAM_UNKNOWN:
return type::Unknown;
}
}
inline size_t gs::effect_parameter::count_annotations()
{
return gs_param_get_num_annotations(get());
}
std::shared_ptr<gs::effect_parameter> gs::effect_parameter::get_annotation(size_t idx)
{
if (idx >= get()->annotations.num) {
return nullptr;
}
return std::make_shared<effect_parameter>(get()->annotations.array + idx, this);
}
std::shared_ptr<gs::effect_parameter> gs::effect_parameter::get_annotation(std::string name)
{
for (size_t idx = 0; idx < get()->annotations.num; idx++) {
auto ptr = get()->annotations.array + idx;
if (strcmp(ptr->name, name.c_str()) == 0) {
return std::make_shared<effect_parameter>(ptr, this);
}
}
return nullptr;
}
bool gs::effect_parameter::has_annotation(std::string name)
{
auto eprm = get_annotation(name);
if (eprm)
return true;
return false;
}
bool gs::effect_parameter::has_annotation(std::string name, effect_parameter::type type)
{
auto eprm = get_annotation(name);
if (eprm)
return eprm->get_type() == type;
return false;
}

69
source/obs/gs/gs-effect-parameter.hpp Normal file
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@ -0,0 +1,69 @@
/*
* Modern effects for a modern Streamer
* Copyright (C) 2019 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 <cinttypes>
#include <memory>
#include <string>
#include <graphics/graphics.h>
namespace gs {
class effect_parameter : protected std::shared_ptr<gs_eparam_t> {
std::shared_ptr<gs_effect_t>* _effect_parent;
std::shared_ptr<gs_epass_t>* _pass_parent;
std::shared_ptr<gs_eparam_t>* _param_parent;
public:
enum class type {
Unknown,
Boolean,
Float,
Float2,
Float3,
Float4,
Integer,
Integer2,
Integer3,
Integer4,
Matrix,
String,
Texture,
Invalid = -1,
};
public:
effect_parameter(gs_eparam_t* param);
effect_parameter(gs_eparam_t* param, std::shared_ptr<gs_effect_t>* parent);
effect_parameter(gs_eparam_t* param, std::shared_ptr<gs_epass_t>* parent);
effect_parameter(gs_eparam_t* param, std::shared_ptr<gs_eparam_t>* parent);
~effect_parameter();
std::string get_name();
type get_type();
size_t count_annotations();
std::shared_ptr<effect_parameter> get_annotation(size_t idx);
std::shared_ptr<effect_parameter> get_annotation(std::string name);
bool has_annotation(std::string name);
bool has_annotation(std::string name, effect_parameter::type type);
};
} // namespace gs