void * ofBufferObject::map(GLenum access){
if(!this->data) return nullptr;
#ifdef GLEW_ARB_direct_state_access
if (GLEW_ARB_direct_state_access) {
return glMapNamedBuffer(data->id,access);
}
#endif
/// --------| invariant: direct state access is not available
if(!data->isBound){
// if the buffer wasn't already bound and the operation
// is one of unpack/pack buffer alternate between the 2
// since the tipical use is to pack to copy to the buffer
// then unpack to copy from it.
// for more advanced usages one can just bind the buffer
// before mapping
if(data->lastTarget==GL_PIXEL_PACK_BUFFER){
data->lastTarget = GL_PIXEL_UNPACK_BUFFER;
}else if(data->lastTarget == GL_PIXEL_UNPACK_BUFFER){
data->lastTarget = GL_PIXEL_PACK_BUFFER;
}
glBindBuffer(data->lastTarget, data->id);
}
auto ret = glMapBuffer(data->lastTarget,access);
if(!data->isBound){
unbind(data->lastTarget);
}
return ret;
}
// void VertexBuffer::setSubData(GLfloat *data, GLintptr offset, GLsizeiptr count)
// {
// glNamedBufferSubData(m_BufferID, offset * m_ComponentCount, count * m_ComponentCount, data);
// }
//
void* VertexBuffer::mapBuffer(GLenum access)
{
#ifdef TR_CURRENT
return glMapNamedBuffer(m_BufferID, access);
#else
return glMapBuffer(GL_ARRAY_BUFFER, access);
#endif
}
void * ofBufferObject::map(GLenum access){
if(!this->data) return NULL;
#ifdef GLEW_ARB_direct_state_access
if (data->useDSA) {
return glMapNamedBuffer(data->id,access);
}
#endif
/// --------| invariant: direct state access is not available
if(data->lastTarget==GL_PIXEL_PACK_BUFFER){
bind(GL_PIXEL_UNPACK_BUFFER);
}else{
bind(data->lastTarget);
}
return glMapBuffer(data->lastTarget,access);
}
void* glMapBuffer(GLenum target, GLenum access)
{
return glMapNamedBuffer((GLuint) boundBuffer, access);
}
void * BufferImplementation_DirectStateAccessARB::map(const Buffer * buffer, GLenum access) const
{
return glMapNamedBuffer(buffer->id(), access);
}
