--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Program.cpp	Fri Dec 01 20:25:49 2023 +0100
@@ -0,0 +1,76 @@
+/**
+ * ShaderShark
+ * Copyright © 2023 František Kučera (Frantovo.cz, GlobalCode.info)
+ *
+ * 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, version 3 of the License.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <string>
+#include <exception>
+
+#include "Program.h"
+
+class Program::Impl {
+public:
+	GLuint id;
+};
+
+Program::Program() : impl(new Impl()) {
+	impl->id = glCreateProgram();
+}
+
+Program::~Program() {
+	glDeleteProgram(impl->id);
+	delete impl;
+}
+
+void Program::attachShader(const Shader& shader) {
+	glAttachShader(impl->id, shader.getId());
+}
+
+void Program::detachShader(const Shader& shader) {
+	glDetachShader(impl->id, shader.getId());
+}
+
+void Program::link() {
+	glLinkProgram(impl->id);
+	GLint linkStatus;
+	glGetProgramiv(impl->id, GL_LINK_STATUS, &linkStatus);
+	if (linkStatus != GL_TRUE) {
+		char error[512];
+		glGetProgramInfoLog(impl->id, sizeof (error), NULL, error);
+		throw std::logic_error(
+				std::string("GLSL: program failed to link: ") + error);
+	}
+}
+
+void Program::use() {
+	glUseProgram(impl->id);
+	checkError();
+}
+
+GLint Program::getAttribLocation(const std::string& name) {
+	return glGetAttribLocation(impl->id, name.c_str());
+}
+
+GLint Program::getUniformLocation(const std::string& name) {
+	return glGetUniformLocation(impl->id, name.c_str());
+}
+
+GLint Program::getFragDataLocation(const std::string& name) {
+	return glGetFragDataLocation(impl->id, name.c_str());
+}
+
+void Program::bindFragDataLocation(const std::string& name, const GLint color) {
+	glBindFragDataLocation(impl->id, color, name.c_str());
+}