Add 'shf/' from commit 'b6c5a95b664aeb861d7b33ffc9eefe447ba99dd7'

git-subtree-dir: shf
git-subtree-mainline: 401408448f
git-subtree-split: b6c5a95b66

shf/ffi/glfw-export.c

@@ -0,0 +1,144 @@
+#define GLFW_INCLUDE_NONE
+#include "glad.h"
+#include <GLFW/glfw3.h>
+#include <stdbool.h>
+
+// GLFW constants used below
+int CONTEXT_VERSION_MAJOR = GLFW_CONTEXT_VERSION_MAJOR;
+int DEPRECATED = GLFW_DECORATED;
+int GLFW_FFI_FALSE = GLFW_FALSE;
+
+// GLFW functions used below
+void init() {
+  glfwInit();
+}
+
+void windowHint(int hint, int value) {
+  glfwWindowHint(hint, value);
+}
+
+GLFWwindow* createWindow(int width, int height, const char *title) {
+  return glfwCreateWindow(width, height, title, NULL, NULL);
+}
+
+void terminate() {
+  glfwTerminate();
+}
+
+void makeContextCurrent(GLFWwindow* window) {
+  glfwMakeContextCurrent(window);
+}
+
+bool windowShouldClose(GLFWwindow *window) {
+  glfwWindowShouldClose(window);
+}
+
+void waitEvents() {
+  glfwWaitEvents();
+}
+
+void swapBuffers(GLFWwindow *window) {
+  glfwSwapBuffers(window);
+}
+
+void setClipboardString (GLFWwindow *window, const char *copyString) {
+  glfwSetClipboardString(window, copyString);
+}
+
+void loadGlad() {
+  gladLoadGLLoader((GLADloadproc)glfwGetProcAddress);
+}
+
+// OpenGL constants used below
+unsigned int VERTEX_SHADER = GL_VERTEX_SHADER;
+unsigned int FRAGMENT_SHADER = GL_FRAGMENT_SHADER;
+unsigned int TRIANGLES = GL_TRIANGLES;
+unsigned int STATIC_DRAW = GL_STATIC_DRAW;
+unsigned int DYNAMIC_DRAW = GL_DYNAMIC_DRAW;
+
+// OpenGL functions used below
+void enableDepthTest() {
+  glEnable(GL_DEPTH_TEST);
+}
+
+void viewport(int width, int height) {
+  glViewport(0, 0, width, height);
+}
+
+void clearColor(float r, float g, float b, float a) {
+  glClearColor(r, g, b, a);
+}
+
+void clear() {
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+}
+
+unsigned int createBuffer() {
+  unsigned int buffer;
+  glGenBuffers(1, &buffer);
+  return buffer;
+}
+
+void bindBuffer(unsigned int buffer) {
+  glBindBuffer(GL_ARRAY_BUFFER, buffer);
+}
+
+void bufferData(float* vector, int vectorLength, unsigned int updateMode) {
+  glBufferData(GL_ARRAY_BUFFER, sizeof(float) * vectorLength, vector, updateMode);
+}
+
+unsigned int createShader(unsigned int shaderType) {
+  return glCreateShader(shaderType);
+}
+
+void shaderSource(unsigned int shader, const char *sourceString) {
+  glShaderSource(shader, 1, &sourceString, NULL);
+}
+
+void compileShader(unsigned int shader) {
+  glCompileShader(shader);
+}
+
+void deleteShader(unsigned int shader) {
+  glDeleteShader(shader);
+}
+
+void vertexAttribPointer(int location, int numVecComponents, int stride, int offset) {
+  glVertexAttribPointer(location, numVecComponents, GL_FLOAT, GL_FALSE, stride * sizeof(float), (void*)offset);
+}
+
+void enableVertexAttribArray(int location) {
+  glEnableVertexAttribArray(location);
+}
+
+unsigned int createProgram() {
+  return glCreateProgram();
+}
+
+void attachShader(unsigned int program, unsigned int shader) {
+  glAttachShader(program, shader);
+}
+
+void linkProgram(unsigned int program) {
+  glLinkProgram(program);
+}
+
+void useProgram(unsigned int program) {
+  glUseProgram(program);
+}
+
+void deleteProgram(unsigned int program) {
+  glDeleteProgram(program);
+}
+
+void drawArrays(unsigned int drawMode, int startIndex, int numVertices) {
+  glDrawArrays(drawMode, startIndex, numVertices);
+}
+
+int getUniformLocation(unsigned int program, const char *uniformName) {
+  glGetUniformLocation(program, uniformName);
+}
+
+void uniform4f(int uniformLocation, float a, float b, float c, float d) {
+  glUniform4f(uniformLocation, a, b, c, d);
+}