//! (ctor)
VertexAttribute::VertexAttribute(uint16_t _offset,uint8_t _numValues, uint32_t _dataType, Util::StringIdentifier _nameId,std::string _name, bool _normalize) :
offset(_offset),dataSize(getGLTypeSize(_dataType)*_numValues),
numValues(_numValues), dataType(_dataType), nameId(std::move(_nameId)),name(std::move(_name)), normalize(_normalize) {
if((dataSize % 4) != 0) {
WARN("VertexAttribute is not 4-byte aligned.");
}
}
void glhud_renderDefault(GLModel *parent) {
// Bind our vertex array object
#if USE_VAO
glBindVertexArray(parent->vaoName);
#else
glBindBuffer(GL_ARRAY_BUFFER, parent->posBufferName);
GLsizei posTypeSize = getGLTypeSize(parent->positionType);
GLsizei texcoordTypeSize = getGLTypeSize(parent->texcoordType);
// Set up parmeters for position attribute in the VAO including, size, type, stride, and offset in the currenly
// bound VAO This also attaches the position VBO to the VAO
glVertexAttribPointer(POS_ATTRIB_IDX, // What attibute index will this array feed in the vertex shader (see buildProgram)
parent->positionSize, // How many elements are there per position?
parent->positionType, // What is the type of this data?
GL_FALSE, // Do we want to normalize this data (0-1 range for fixed-pont types)
parent->positionSize*posTypeSize, // What is the stride (i.e. bytes between positions)?
0); // What is the offset in the VBO to the position data?
glEnableVertexAttribArray(POS_ATTRIB_IDX);
// Set up parmeters for texcoord attribute in the VAO including, size, type, stride, and offset in the currenly
// bound VAO This also attaches the texcoord VBO to VAO
glBindBuffer(GL_ARRAY_BUFFER, parent->texcoordBufferName);
glVertexAttribPointer(TEXCOORD_ATTRIB_IDX, // What attibute index will this array feed in the vertex shader (see buildProgram)
parent->texcoordSize, // How many elements are there per texture coord?
parent->texcoordType, // What is the type of this data in the array?
GL_TRUE, // Do we want to normalize this data (0-1 range for fixed-point types)
parent->texcoordSize*texcoordTypeSize, // What is the stride (i.e. bytes between texcoords)?
0); // What is the offset in the VBO to the texcoord data?
glEnableVertexAttribArray(TEXCOORD_ATTRIB_IDX);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, parent->elementBufferName);
#endif
// Draw the object
_HACKAROUND_GLDRAW_PRE();
glDrawElements(parent->primType, parent->numElements, parent->elementType, 0);
GL_ERRLOG("glhudparent render");
}
