scl::gl_index_buffer Class Reference

#include <gl_buffer.h>

Inheritance diagram for scl::gl_index_buffer:

Public Member Functions
u32	GetCount () const override
render_primitive::handle	GetHandle () const override
	gl_index_buffer (u32 *Indices, u32 Count)
	~gl_index_buffer () override
void	Bind () const override
void	Unbind () const override
void	Update (u32 *Indices, u32 Count) override
void	Free () override
Public Member Functions inherited from scl::index_buffer
virtual	~index_buffer ()=default
virtual void	Bind () const =0
virtual void	Unbind () const =0
virtual void	Free ()=0
virtual void	Update (u32 *Indices, u32 Count)=0
virtual u32	GetCount () const =0

Additional Inherited Members
Static Public Member Functions inherited from scl::index_buffer
static shared< index_buffer >	Create (u32 *Indices, u32 Count)

Detailed Description

Vertices indices buffer interface.

Definition at line 153 of file gl_buffer.h.

Constructor & Destructor Documentation

gl_index_buffer()

scl::gl_index_buffer::gl_index_buffer	(	u32 *	Indices,
		u32	Count
	)

• Create API specific vertex buffer by vertices count and data.

Parameters

Indices	- indices array.
Count	- indices in buffer count.

Definition at line 140 of file gl_buffer.cpp.

{
    this->IndicesCount = Count;
 
    glCreateBuffers(1, &Id);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, Id);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, Count * sizeof(u32), Indices, GL_STATIC_DRAW);
 
    SCL_CORE_SUCCES("OpenGL Index buffer with id {} and {} indices created.", Id, Count);
}

~gl_index_buffer()

scl::gl_index_buffer::~gl_index_buffer ( )

override

Index buffer default destructor.

Definition at line 151 of file gl_buffer.cpp.

{
    Free();
}

Member Function Documentation

Bind()

void scl::gl_index_buffer::Bind ( ) const

overridevirtual

• Bind buffer to current render stage function.

Parameters

None.

Returns

None.

Implements scl::index_buffer.

Definition at line 156 of file gl_buffer.cpp.

{
    if (Id != 0) glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, Id);
}

Free()

void scl::gl_index_buffer::Free ( )

overridevirtual

• Clear buffer from GPU memory function.

Parameters

None.

Returns

None.

Implements scl::index_buffer.

Definition at line 178 of file gl_buffer.cpp.

{
    if (Id != 0)
    {
        glDeleteBuffers(1, &Id);
 
        SCL_CORE_INFO("OpenGL Index buffer with id {} freed.", Id);
        Id = 0, IndicesCount = 0;
    }
}

GetCount()

u32 scl::gl_index_buffer::GetCount ( ) const

inlineoverridevirtual

Index buffer getter/setter functions.

Index buffer indices count getter function.

Implements scl::index_buffer.

Definition at line 161 of file gl_buffer.h.

{ return IndicesCount; };

GetHandle()

render_primitive::handle scl::gl_index_buffer::GetHandle ( ) const

inlineoverride

Backend api render primitive hadnle getter function.

Definition at line 164 of file gl_buffer.h.

{ return Id; }

Unbind()

void scl::gl_index_buffer::Unbind ( ) const

overridevirtual

• Unbind buffer from current render stage function.

Parameters

None.

Returns

None.

Implements scl::index_buffer.

Definition at line 161 of file gl_buffer.cpp.

{
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
}

Update()

void scl::gl_index_buffer::Update ( u32 *  Indices, u32  Count  )

overridevirtual

• Update buffer function function.

Parameters

Indices	- array of indices.
Count

Implements scl::index_buffer.

Definition at line 166 of file gl_buffer.cpp.

{
    if (Id != 0)
    {
        SCL_CORE_ASSERT(this->IndicesCount == Count, "Indices count cant'be changed.");
 
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, Id);
        glBufferData(GL_ELEMENT_ARRAY_BUFFER, Count * sizeof(u32), Indices, GL_STATIC_DRAW);
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
    }
}

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

• platform/opengl/gl_buffer.h
• platform/opengl/gl_buffer.cpp