Framebuffer Class Reference

#include <opengl_utils.hpp>

Collaboration diagram for Framebuffer:

Public Member Functions
	Framebuffer ()
	Framebuffer (const Framebuffer &)=delete
	Framebuffer (Framebuffer &&o)
	~Framebuffer ()
void	attach_texture (const Texture &tex)
void	attach_texture (GLuint tex)
GLuint	get ()
Framebuffer &	operator= (const Framebuffer &)=delete
Framebuffer &	operator= (Framebuffer &&o)

Public Attributes
Fb_handle_uniq	handle
uint32_t	height = 0
Fb_id_uniq	id
MemoryMapping	map
uint32_t	pitch = 0
uint32_t	pix_fmt = 0
size_t	size = 0
uint32_t	width = 0

Private Member Functions
void	swap (Framebuffer &o)

Private Attributes
GLuint	fbo = 0

Detailed Description

RAII wrapper for an OpenGL framebuffer object

Definition at line 332 of file drm.cpp.

Constructor & Destructor Documentation

Framebuffer() [1/3]

Framebuffer::Framebuffer ( )

inline

Constructs a new framebuffer object

Definition at line 213 of file opengl_utils.hpp.

                     {
                glGenFramebuffers(1, &fbo);
        }

References fbo.

~Framebuffer()

Framebuffer::~Framebuffer ( )

inline

Definition at line 217 of file opengl_utils.hpp.

                      {
                glDeleteFramebuffers(1, &fbo);
        }

References fbo.

Framebuffer() [2/3]

Framebuffer::Framebuffer ( const Framebuffer & )

delete

Framebuffer() [3/3]

Framebuffer::Framebuffer ( Framebuffer && o )

inline

Definition at line 222 of file opengl_utils.hpp.

{ swap(o); }

References swap().

Here is the call graph for this function:

Member Function Documentation

attach_texture() [1/2]

void Framebuffer::attach_texture ( const Texture & tex )

inline

Attaches a texture to the contained framebuffer

Parameters

tex	Texture object containg the texture to attach

Definition at line 243 of file opengl_utils.hpp.

                                               {
                attach_texture(tex.get());
        }

References attach_texture(), and Texture::get().

Here is the call graph for this function:

attach_texture() [2/2]

void Framebuffer::attach_texture

(

GLuint

tex

)

Attaches a texture to the contained framebuffer

Parameters

tex	Id of texture to attach

Definition at line 306 of file opengl_utils.cpp.

                                          {
        glBindTexture(GL_TEXTURE_2D, tex);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glBindTexture(GL_TEXTURE_2D, 0);
 
 
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex, 0);
        if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE){
                printf("Error %d\n", glGetError());
        }
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
}

References fbo.

Referenced by attach_texture().

get()

GLuint Framebuffer::get ( )

inline

Returns the underlying OpenGL framebuffer id

Definition at line 229 of file opengl_utils.hpp.

{ return fbo; }

References fbo.

operator=() [1/2]

Framebuffer & Framebuffer::operator= ( const Framebuffer & )

delete

operator=() [2/2]

Framebuffer & Framebuffer::operator= ( Framebuffer && o )

inline

Definition at line 224 of file opengl_utils.hpp.

{ swap(o); return *this; }

References swap().

Here is the call graph for this function:

swap()

void Framebuffer::swap ( Framebuffer & o )

inlineprivate

Definition at line 248 of file opengl_utils.hpp.

                                 {
                std::swap(fbo, o.fbo);
        }

References fbo.

Referenced by Framebuffer(), and operator=().

Member Data Documentation

fbo

GLuint Framebuffer::fbo = 0

private

Definition at line 252 of file opengl_utils.hpp.

Referenced by Framebuffer(), ~Framebuffer(), attach_texture(), get(), and swap().

handle

Fb_handle_uniq Framebuffer::handle

Definition at line 338 of file drm.cpp.

Referenced by create_dumb_fb().

height

uint32_t Framebuffer::height = 0

Definition at line 334 of file drm.cpp.

Referenced by create_dumb_fb(), and draw_frame().

id

Fb_id_uniq Framebuffer::id

Definition at line 342 of file drm.cpp.

Referenced by create_dumb_fb(), draw_splash(), and swap_buffers().

map

MemoryMapping Framebuffer::map

Definition at line 343 of file drm.cpp.

Referenced by create_dumb_fb(), and draw_frame().

pitch

uint32_t Framebuffer::pitch = 0

Definition at line 335 of file drm.cpp.

Referenced by create_dumb_fb(), and draw_frame().

pix_fmt

uint32_t Framebuffer::pix_fmt = 0

Definition at line 340 of file drm.cpp.

size

size_t Framebuffer::size = 0

Definition at line 336 of file drm.cpp.

Referenced by create_dumb_fb().

width

uint32_t Framebuffer::width = 0

Definition at line 333 of file drm.cpp.

Referenced by create_dumb_fb(), and draw_frame().

---

The documentation for this class was generated from the following files:

• src/video_display/drm.cpp
• src/video_display/opengl_utils.hpp
• src/video_display/opengl_utils.cpp