provide a better method of embedding shaders within the source code

src/io/render.c

@@ -0,0 +1,65 @@
+// Copyright (c) 2025 Quinn
+// Licensed under the MIT Licence. See LICENSE for details
+#include "render.h"
+
+#include <glad/gl.h>
+
+#include <GLFW/glfw3.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "../util/vec/float2.h"
+#include "shader.h"
+
+#define VERTC 6
+GLuint pipe;
+float2 verts[VERTC] = {
+	{-1, -1   }, // pnt A
+	{1,  -1   }, // pnt B
+	{1,  -0.9F}, // pnt C
+
+	{-1, -0.9F}, // pnt D
+	{1,  -0.9F}, // pnt C
+	{-1, -1   }, // pnt A
+};
+GLuint vbo; // vertex buffer object
+GLuint vao; // vertex array object
+
+int render_init(void) {
+	pipe = glCreateProgram();
+	shader_init(pipe);       // initialise and include the shaders
+	glLinkProgram(pipe);     // link the application
+	glValidateProgram(pipe); // validate that what we've done is correct
+
+	// init the VBO
+	glGenBuffers(1, &vbo);
+	glBindBuffer(GL_ARRAY_BUFFER, vbo);
+	glBufferData(GL_ARRAY_BUFFER, sizeof(verts), verts, GL_STATIC_DRAW);
+
+	// init the VAO
+	glGenVertexArrays(1, &vao);
+	glBindVertexArray(vao);
+
+	// set VBO info
+	glBindBuffer(GL_ARRAY_BUFFER, vbo);
+	glEnableVertexAttribArray(0);
+	glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, sizeof(float2), NULL);
+
+	glBindVertexArray(0);
+	return 0;
+}
+
+void render_update(GLFWwindow* win) {
+	glDisable(GL_DEPTH_TEST);
+	glDisable(GL_CULL_FACE);
+
+	int w, h;
+	glfwGetWindowSize(win, &w, &h);
+	glViewport(0, 0, w, h);
+	glClearColor(0.1F, 0.1F, 0.1F, 1.0F);
+	glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+	glUseProgram(pipe);
+
+	glBindVertexArray(vao);
+	glDrawArrays(GL_TRIANGLES, 0, VERTC);
+}