wip: practica1

src/shader.cpp

@@ -1 +1,43 @@
-#include "shader.h"
+#include "shader.h"
+
+#include <vector>
+#include <fstream>
+#include <sstream>
+
+#include "../lib/glew/GL/glew.h"
+#include "../lib/glfw/glfw3.h"
+
+namespace {
+	std::string readShaderFile(const std::string& filename) {
+		std::ifstream file(filename);
+		if (!file)
+			throw std::runtime_error("Failed to open shader file: " + filename);
+		std::stringstream buffer;
+		buffer << file.rdbuf();
+		return buffer.str();
+	}
+} // namespace
+
+Shader::Shader(const std::string& vertexPath, const std::string& fragmentPath)
+{
+	std::string vertexCode = readShaderFile(vertexPath);
+	std::string fragmentCode = readShaderFile(fragmentPath);
+	const char* vShaderCode = vertexCode.c_str();
+	const char* fShaderCode = fragmentCode.c_str();
+
+	const uint32_t vertex = glCreateShader(GL_VERTEX_SHADER);
+	glShaderSource(vertex, 1, &vShaderCode, NULL);
+	glCompileShader(vertex);
+
+	const uint32_t fragment = glCreateShader(GL_FRAGMENT_SHADER);
+	glShaderSource(fragment, 1, &fShaderCode, NULL);
+	glCompileShader(fragment);
+
+	program = glCreateProgram();
+	glAttachShader(program, vertex);
+	glAttachShader(program, fragment);
+	glLinkProgram(program);
+
+	glDeleteShader(vertex);
+	glDeleteShader(fragment);
+}