first commit

2021-07-07 22:09:21 +02:00
commit 9014681460
95 changed files with 42985 additions and 0 deletions
--- a/shaders/Shader.cpp
+++ b/shaders/Shader.cpp
@@ -0,0 +1,129 @@
+#include "shader.h"
+
+#include <iostream>
+
+Shader& Shader::Use()
+{
+    glUseProgram(this->ID);
+    return *this;
+}
+
+void Shader::Compile(const GLchar* vertexSource, const GLchar* fragmentSource, const GLchar* geometrySource)
+{
+    GLuint sVertex, sFragment, gShader;
+    // Vertex Shader
+    sVertex = glCreateShader(GL_VERTEX_SHADER);
+    glShaderSource(sVertex, 1, &vertexSource, NULL);
+    glCompileShader(sVertex);
+    checkCompileErrors(sVertex, "VERTEX");
+    // Fragment Shader
+    sFragment = glCreateShader(GL_FRAGMENT_SHADER);
+    glShaderSource(sFragment, 1, &fragmentSource, NULL);
+    glCompileShader(sFragment);
+    checkCompileErrors(sFragment, "FRAGMENT");
+    // If geometry shader source code is given, also compile geometry shader
+    if (geometrySource != nullptr)
+    {
+        gShader = glCreateShader(GL_GEOMETRY_SHADER);
+        glShaderSource(gShader, 1, &geometrySource, NULL);
+        glCompileShader(gShader);
+        checkCompileErrors(gShader, "GEOMETRY");
+    }
+    // Shader Program
+    this->ID = glCreateProgram();
+    glAttachShader(this->ID, sVertex);
+    glAttachShader(this->ID, sFragment);
+    if (geometrySource != nullptr)
+        glAttachShader(this->ID, gShader);
+    glLinkProgram(this->ID);
+    checkCompileErrors(this->ID, "PROGRAM");
+    // Delete the shaders as they're linked into our program now and no longer necessery
+    glDeleteShader(sVertex);
+    glDeleteShader(sFragment);
+    if (geometrySource != nullptr)
+        glDeleteShader(gShader);
+}
+
+void Shader::SetFloat(const GLchar* name, GLfloat value, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform1f(glGetUniformLocation(this->ID, name), value);
+}
+void Shader::SetInteger(const GLchar* name, GLint value, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform1i(glGetUniformLocation(this->ID, name), value);
+}
+void Shader::SetVector2f(const GLchar* name, GLfloat x, GLfloat y, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform2f(glGetUniformLocation(this->ID, name), x, y);
+}
+void Shader::SetVector2f(const GLchar* name, const glm::vec2& value, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform2f(glGetUniformLocation(this->ID, name), value.x, value.y);
+}
+void Shader::SetVector3f(const GLchar* name, GLfloat x, GLfloat y, GLfloat z, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform3f(glGetUniformLocation(this->ID, name), x, y, z);
+}
+void Shader::SetVector3f(const GLchar* name, const glm::vec3& value, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform3f(glGetUniformLocation(this->ID, name), value.x, value.y, value.z);
+}
+void Shader::SetVector4f(const GLchar* name, GLfloat x, GLfloat y, GLfloat z, GLfloat w, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform4f(glGetUniformLocation(this->ID, name), x, y, z, w);
+}
+void Shader::SetVector4f(const GLchar* name, const glm::vec4& value, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniform4f(glGetUniformLocation(this->ID, name), value.x, value.y, value.z, value.w);
+}
+void Shader::SetMatrix4(const GLchar* name, const glm::mat4& matrix, GLboolean useShader)
+{
+    if (useShader)
+        this->Use();
+    glUniformMatrix4fv(glGetUniformLocation(this->ID, name), 1, GL_FALSE, glm::value_ptr(matrix));
+}
+
+
+void Shader::checkCompileErrors(GLuint object, std::string type)
+{
+    GLint success;
+    GLchar infoLog[1024];
+    if (type != "PROGRAM")
+    {
+        glGetShaderiv(object, GL_COMPILE_STATUS, &success);
+        if (!success)
+        {
+            glGetShaderInfoLog(object, 1024, NULL, infoLog);
+            std::cout << "| ERROR::SHADER: Compile-time error: Type: " << type << "\n"
+                << infoLog << "\n -- --------------------------------------------------- -- "
+                << std::endl;
+        }
+    }
+    else
+    {
+        glGetProgramiv(object, GL_LINK_STATUS, &success);
+        if (!success)
+        {
+            glGetProgramInfoLog(object, 1024, NULL, infoLog);
+            std::cout << "| ERROR::Shader: Link-time error: Type: " << type << "\n"
+                << infoLog << "\n -- --------------------------------------------------- -- "
+                << std::endl;
+        }
+    }
+}