Minor renderer for particles

1 files changed, 65 insertions, 0 deletions

diff --git a/util/ogl_renderer/c++/program.hpp b/util/ogl_renderer/c++/program.hpp
new file mode 100644
index 0000000..acf3016
--- /dev/null
+++ b/util/ogl_renderer/c++/program.hpp
@@ -0,0 +1,65 @@
+#pragma once
+
+#include "common.hpp"
+
+namespace kel {
+namespace lbm {
+GLuint create_ogl_program(const char * vertex_data,const char * fragment_data){
+	// Create the shaders
+	GLuint VertexShaderID = glCreateShader(GL_VERTEX_SHADER);
+	GLuint FragmentShaderID = glCreateShader(GL_FRAGMENT_SHADER);
+
+	GLint Result = GL_FALSE;
+	int InfoLogLength;
+
+	// Compile Vertex Shader
+	glShaderSource(VertexShaderID, 1, &vertex_data, NULL);
+	glCompileShader(VertexShaderID);
+
+	// Check Vertex Shader
+	glGetShaderiv(VertexShaderID, GL_COMPILE_STATUS, &Result);
+	glGetShaderiv(VertexShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
+	if ( InfoLogLength > 0 ){
+		std::vector<char> VertexShaderErrorMessage(InfoLogLength+1);
+		glGetShaderInfoLog(VertexShaderID, InfoLogLength, NULL, &VertexShaderErrorMessage[0]);
+		printf("%s\n", &VertexShaderErrorMessage[0]);
+	}
+
+	// Compile Fragment Shader
+	glShaderSource(FragmentShaderID, 1, &fragment_data , NULL);
+	glCompileShader(FragmentShaderID);
+
+	// Check Fragment Shader
+	glGetShaderiv(FragmentShaderID, GL_COMPILE_STATUS, &Result);
+	glGetShaderiv(FragmentShaderID, GL_INFO_LOG_LENGTH, &InfoLogLength);
+	if ( InfoLogLength > 0 ){
+		std::vector<char> FragmentShaderErrorMessage(InfoLogLength+1);
+		glGetShaderInfoLog(FragmentShaderID, InfoLogLength, NULL, &FragmentShaderErrorMessage[0]);
+		printf("%s\n", &FragmentShaderErrorMessage[0]);
+	}
+
+	// Link the program
+	GLuint ProgramID = glCreateProgram();
+	glAttachShader(ProgramID, VertexShaderID);
+	glAttachShader(ProgramID, FragmentShaderID);
+	glLinkProgram(ProgramID);
+
+	// Check the program
+	glGetProgramiv(ProgramID, GL_LINK_STATUS, &Result);
+	glGetProgramiv(ProgramID, GL_INFO_LOG_LENGTH, &InfoLogLength);
+	if ( InfoLogLength > 0 ){
+		std::vector<char> ProgramErrorMessage(InfoLogLength+1);
+		glGetProgramInfoLog(ProgramID, InfoLogLength, NULL, &ProgramErrorMessage[0]);
+		printf("%s\n", &ProgramErrorMessage[0]);
+	}
+
+	glDetachShader(ProgramID, VertexShaderID);
+	glDetachShader(ProgramID, FragmentShaderID);
+
+	glDeleteShader(VertexShaderID);
+	glDeleteShader(FragmentShaderID);
+
+	return ProgramID;
+}
+}
+}