j3d1/KlassischeKeplerKriege
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

+ added glclasses for texture, fbo & rbo

Browse source
This commit is contained in:
end 2016-10-02 11:25:53 +02:00
parent 0b71aad1f7
commit 415465df71
2 changed files with 203 additions and 106 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

101
game/glclasses.cpp
View file

@ -13,10 +13,8 @@ namespace endofthejedi {
void VAO::bind() { glBindVertexArray(m_name); }
void VAO::unbind() { glBindVertexArray(0); }
void VAO::fill(GLuint index, GLint size, GLenum type,
GLboolean normalized, GLsizei stride,
const GLvoid *pointer)
{
void VAO::fill(GLuint index, GLint size, GLenum type, GLboolean normalized,
GLsizei stride, const GLvoid *pointer) {
glEnableVertexAttribArray(index);
glVertexAttribPointer(index, size, type, normalized, stride, pointer);
}
@ -65,8 +63,7 @@ namespace endofthejedi {
return result != GL_FALSE;
}
void Shader::bind()
{
void Shader::bind() {
if (m_program == 0) {
std::cerr << "error: invalid to bind invalid program (0)! "
"use unbind() if that was your purpose!" << std::endl;
@ -84,7 +81,8 @@ namespace endofthejedi {
void Shader::load(const std::string &data, GLenum shadertype) {
if (m_program == 0) {
std::cout<<"[shader] error: shader program is invalid (0)!" << std::endl;
std::cout << "[shader] error: shader program is invalid (0)!"
<< std::endl;
exit(-1);
return;
}
@ -108,7 +106,8 @@ namespace endofthejedi {
std::ifstream fileStream(path, std::ios::in);
if (!fileStream.is_open()) {
std::cerr << "Could not read file " << path << ". File does not exist." << std::endl;
std::cerr << "Could not read file " << path << ". File does not exist."
<< std::endl;
return;
}
@ -125,17 +124,64 @@ namespace endofthejedi {
GLuint Shader::location(const std::string &name) {
return glGetUniformLocation(m_program, name.c_str());
}
Texture::Texture() { glGenTextures(1, &m_name); }
Texture::~Texture() { glDeleteTextures(1, &m_name); }
void Texture::bind() { glBindTexture(GL_TEXTURE_2D, m_name); }
void Texture::unbind() { glBindTexture(GL_TEXTURE_2D, 0); }
void Texture::fill(GLenum target, GLint level, GLint internalFormat,
GLsizei width, GLsizei height, GLint border, GLenum format,
GLenum type, const GLvoid *data) {
bind();
glTexImage2D(target, level, internalFormat, width, height, border, format,
type, data);
}
GLuint Texture::getName() { return m_name; }
Framebuffer::Framebuffer() { glGenFramebuffers(1, &m_name); }
Framebuffer::~Framebuffer() { glDeleteFramebuffers(1, &m_name); }
void Framebuffer::bind() { glBindFramebuffer(GL_FRAMEBUFFER, m_name); }
void Framebuffer::unbind() { glBindFramebuffer(GL_FRAMEBUFFER, 0); }
void Framebuffer::attachRenderbuffer(GLenum attachment, GLuint rbo) {
bind();
glFramebufferRenderbuffer(GL_FRAMEBUFFER, attachment, GL_RENDERBUFFER, rbo);
}
void printGlError(GLenum err)
{
void Framebuffer::attachTexture(GLenum attachment, GLuint tex) {
bind();
glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, tex, 0);
}
Renderbuffer::Renderbuffer() { glGenRenderbuffers(1, &m_name); }
Renderbuffer::~Renderbuffer() { glDeleteRenderbuffers(1, &m_name); }
void Renderbuffer::bind() { glBindRenderbuffer(GL_RENDERBUFFER, m_name); }
void Renderbuffer::unbind() { glBindRenderbuffer(GL_RENDERBUFFER, 0); }
void Renderbuffer::create(GLenum internalformat, GLsizei width,
GLsizei height) {
bind();
glRenderbufferStorage(GL_RENDERBUFFER, internalformat, width, height);
}
}
void printGlError(GLenum err) {
if (err != GL_NO_ERROR) {
std::cout << "opengl error is: " << stringFromGlError(err) << std::endl;
}
}
void discardLastGlError(bool print)
{
void discardLastGlError(bool print) {
GLenum err = glGetError();
if (print) {
printGlError(err);
@ -143,8 +189,7 @@ void discardLastGlError(bool print)
}
// return false if there's an error
bool checkAndPrintGlError()
{
bool checkAndPrintGlError() {
GLenum err = glGetError();
printGlError(err);
@ -152,15 +197,25 @@ bool checkAndPrintGlError()
return true;
}
const char *stringFromGlError(GLenum err)
{
const char *stringFromGlError(GLenum err) {
switch (err) {
case GL_INVALID_ENUM: return "GL_INVALID_ENUM"; break;
case GL_INVALID_VALUE: return "GL_INVALID_VALUE"; break;
case GL_INVALID_OPERATION: return "GL_INVALID_OPERATION"; break;
case GL_OUT_OF_MEMORY: return "GL_OUT_OF_MEMORY"; break;
case GL_INVALID_FRAMEBUFFER_OPERATION: return "GL_INVALID_FRAMEBUFFER_OPERATION"; break;
default: return "<unknown>"; break;
case GL_INVALID_ENUM:
return "GL_INVALID_ENUM";
break;
case GL_INVALID_VALUE:
return "GL_INVALID_VALUE";
break;
case GL_INVALID_OPERATION:
return "GL_INVALID_OPERATION";
break;
case GL_OUT_OF_MEMORY:
return "GL_OUT_OF_MEMORY";
break;
case GL_INVALID_FRAMEBUFFER_OPERATION:
return "GL_INVALID_FRAMEBUFFER_OPERATION";
break;
default:
return "<unknown>";
break;
}
}

44
game/glclasses.hpp
View file

@ -61,6 +61,49 @@ class Shader {
GLuint location(const std::string &name);
GLuint program();
};
class Texture {
private:
GLuint m_name;
protected:
public:
Texture();
~Texture();
void bind();
void unbind();
void fill(GLenum target, GLint level, GLint internalFormat, GLsizei width,
GLsizei height, GLint border, GLenum format, GLenum type,
const GLvoid *data);
GLuint getName();
};
class Framebuffer {
private:
GLuint m_name;
protected:
public:
Framebuffer();
~Framebuffer();
void bind();
void unbind();
void attachRenderbuffer(GLenum attachment, GLuint rbo);
void attachTexture(GLenum attachment, GLuint tex);
};
class Renderbuffer {
private:
GLuint m_name;
protected:
public:
Renderbuffer();
~Renderbuffer();
void bind();
void unbind();
void create(GLenum internalformat, GLsizei width, GLsizei height);
};
}
#define TBufferObject_(pre, post) \
@ -102,4 +145,3 @@ bool checkAndPrintGlError();
void printGlError(GLenum err);
const char *stringFromGlError(GLenum err);