lauchmelder/OpenGL-utility
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Added basic object wrapper for VAOs

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This commit is contained in:
Robert 2021-01-20 16:51:55 +01:00
parent c3e49cd78e
commit 8921957161
7 changed files with 162 additions and 17 deletions
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64
src/shader.cpp
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@ -10,11 +10,67 @@ namespace oglu
Shader::Shader(const char* vertexShaderFile, const char* fragmentShaderFile) :
vertexShader(0), fragmentShader(0)
{
std::cout << "jkskdjks" << std::endl;
vertexShader = glCreateShader(GL_VERTEX_SHADER);
// Load vertex shader
char* source = nullptr;
LoadShaderSource(vertexShaderFile, &source);
std::cout << source << std::endl;
vertexShader = glCreateShader(GL_VERTEX_SHADER);
glShaderSource(vertexShader, 1, &source, NULL);
glCompileShader(vertexShader);
int success;
char infoLog[512];
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &success);
if (!success)
{
glGetShaderInfoLog(vertexShader, 512, NULL, infoLog);
delete source;
throw std::exception(std::string("Failed to compile shader " + std::string(vertexShaderFile) + "\n" + infoLog).c_str());
}
delete source;
// Load Fragment shader
LoadShaderSource(fragmentShaderFile, &source);
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(fragmentShader, 1, &source, NULL);
glCompileShader(fragmentShader);
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &success);
if (!success)
{
glGetShaderInfoLog(fragmentShader, 512, NULL, infoLog);
delete source;
throw std::exception(std::string("Failed to compile shader " + std::string(fragmentShaderFile) + "\n" + infoLog).c_str());
}
delete source;
// Link into program
program = glCreateProgram();
glAttachShader(program, vertexShader);
glAttachShader(program, fragmentShader);
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &success);
if (!success)
{
glGetProgramInfoLog(program, 512, NULL, infoLog);
throw std::exception(std::string("Failed to link program.\n" + std::string(infoLog)).c_str());
}
// Dispose of shader objects
glDeleteShader(fragmentShader);
glDeleteShader(vertexShader);
}
Shader::~Shader()
{
}
void Shader::Use()
{
glUseProgram(program);
}
void Shader::LoadShaderSource(const char* filename, char** buffer)
@ -28,9 +84,7 @@ namespace oglu
std::string str((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
(*buffer) = (char*)malloc(str.size() + 1);
std::cout << "dsnskdnksdnk" << std::endl;
memcpy(*buffer, str.c_str(), str.size());
std::cout << "diufoisdufo34" << std::endl;
(*buffer)[str.size()] = '\x00';
}
}