Amy/Demo
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style: fomatted to LLVM

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This commit is contained in:
Amy Retzerau
2025-08-27 13:54:40 +02:00
parent ae44554bf4
commit 80ec31a8ce
2 changed files with 39 additions and 50 deletions
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26
FullScreenQuad.hpp
View File

@@ -1,33 +1,35 @@
#include <GL/glew.h>
class FullScreenQuad {
private:
unsigned int vao;
public:
FullScreenQuad();
int getVAO() { return vao; }
};
FullScreenQuad::FullScreenQuad() {
float quadVertices[] = { // vertex attributes for a quad that fills the entire screen in Normalized Device Coordinates.
float quadVertices[] = {// vertex attributes for a quad that fills the
// entire screen in Normalized Device Coordinates.
// positions // texCoords
-1.0f, 1.0f, 0.0f, 1.0f,
-1.0f, -1.0f, 0.0f, 0.0f,
1.0f, -1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 1.0f, -1.0f, -1.0f,
0.0f, 0.0f, 1.0f, -1.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 1.0f, 1.0f, -1.0f,
1.0f, 0.0f, 1.0f, 1.0f, 1.0f, 1.0f};
-1.0f, 1.0f, 0.0f, 1.0f,
1.0f, -1.0f, 1.0f, 0.0f,
1.0f, 1.0f, 1.0f, 1.0f
};
unsigned int vbo;
glGenVertexArrays(1, &vao);
glGenBuffers(1, &vbo);
glBindVertexArray(vao);
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), &quadVertices, GL_STATIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, sizeof(quadVertices), &quadVertices,
GL_STATIC_DRAW);
glEnableVertexAttribArray(0);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (void*)0);
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float),
(void *)0);
glEnableVertexAttribArray(1);
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float), (void*)(2 * sizeof(float)));
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4 * sizeof(float),
(void *)(2 * sizeof(float)));
}

27
main.cpp
View File

@@ -1,8 +1,7 @@
#include "FullScreenQuad.hpp"
#include <GL/glew.h>
#include <GLFW/glfw3.h>
#include <cstdio>
#include "FullScreenQuad.hpp"
const char *vertexShaderSource =
#include "fsq.vs"
@@ -17,13 +16,11 @@ const char *fragmentShaderSource =
glViewport(0, 0, wdth, height);
}*/
void processInput(GLFWwindow *window)
{
void processInput(GLFWwindow *window) {
if (glfwGetKey(window, GLFW_KEY_ESCAPE) == GLFW_PRESS)
glfwSetWindowShouldClose(window, true);
}
unsigned int compVertexShader() {
unsigned int vertexShader;
vertexShader = glCreateShader(GL_VERTEX_SHADER);
@@ -38,10 +35,10 @@ unsigned int compFragmentShader() {
glShaderSource(fragmentShader, 1, &fragmentShaderSource, NULL);
glCompileShader(fragmentShader);
// Print shader comp error
GLint isCompiled = 0;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &isCompiled);
if(isCompiled == GL_FALSE)
{
if (isCompiled == GL_FALSE) {
GLint maxLength = 0;
glGetShaderiv(fragmentShader, GL_INFO_LOG_LENGTH, &maxLength);
@@ -51,7 +48,6 @@ unsigned int compFragmentShader() {
glGetShaderInfoLog(fragmentShader, maxLength, &maxLength, errorLog);
printf("\nFrag Log: %s\n", errorLog);
}
return fragmentShader;
@@ -72,9 +68,7 @@ unsigned int compShader() {
return shaderProgram;
}
void framebuffer_size_callback(GLFWwindow* window, int width, int height)
{
void framebuffer_size_callback(GLFWwindow *window, int width, int height) {
glViewport(0, 0, width, height);
}
@@ -87,8 +81,7 @@ int main(int argc, char** argv) {
window = glfwCreateWindow(800, 600, "Hello World", NULL, NULL);
if (!window)
{
if (!window) {
glfwTerminate();
return -1;
}
@@ -101,26 +94,21 @@ int main(int argc, char** argv) {
return 1;
}
glViewport(0, 0, 800, 600);
glfwSetFramebufferSizeCallback(window, framebuffer_size_callback);
unsigned int shaderProgramm = compShader();
FullScreenQuad fsq{};
while (!glfwWindowShouldClose(window))
{
while (!glfwWindowShouldClose(window)) {
processInput(window);
/* Render here */
glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glUseProgram(shaderProgramm);
glDrawArrays(GL_TRIANGLES, 0, 3);
@@ -135,4 +123,3 @@ int main(int argc, char** argv) {
glfwTerminate();
}