Matrix4 Matrix4::operator=(Matrix4 mat4)
{
float* tmp = mat4.getData();
for(int i = 0; i < 16; i++)
mData[i] = tmp[i];
return *this;
}
void RenderEngine::renderAll() {
ShaderTextureRenderOpMap::iterator opIter;
for(opIter = _renderOps.begin(); opIter != _renderOps.end(); ++opIter) {
_programs[opIter->first].use();
Matrix4 projection;
projection.setOrtho(-(int)_settings.getWindowWidth() / 2.0f, _settings.getWindowWidth() / 2.0f,
-(int)_settings.getWindowHeight() / 2.0f, _settings.getWindowHeight() / 2.0f, 0.0f, 100.0f);
glUniformMatrix4fv(_uniforms[opIter->first].projection, 1, GL_TRUE, projection.getData());
Matrix4 camera;
glUniformMatrix4fv(_uniforms[opIter->first].modelview, 1, GL_TRUE, camera.getData());
TextureRenderOpMap::iterator texIter;
for(texIter = opIter->second.begin(); texIter != opIter->second.end(); ++texIter) {
if(texIter->first) {
float texsize[2] = {texIter->first->getWidth() * 1.0f, texIter->first->getHeight() * 1.0f};
glUniform2fv(_uniforms[opIter->first].texsize, 1, texsize);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texIter->first->getID());
glUniform1i(_uniforms[opIter->first].texture, 0);
}
std::vector<RenderOperation*>& op = texIter->second;
for(unsigned int i = 0; i < op.size(); ++i) {
if(op[i]->getUpdateElements() && op[i]->getUpdateVertices()) {
op[i]->update();
} else if(op[i]->getUpdateElements()) {
op[i]->updateElements();
} else if(op[i]->getUpdateVertices()) {
op[i]->updateVertices();
}
glBindVertexArray(op[i]->getVAO());
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, op[i]->getIBO());
glDrawElements(GL_TRIANGLES, op[i]->getElementCount(), GL_UNSIGNED_INT, reinterpret_cast<void*>(0));
}
}
}
}
Matrix4 Matrix4::operator*(const Matrix4& mat4) const
{
Matrix4 tmp;
const float* matData = mat4.getData();
float tmpData[16];
tmpData[0] = (mData[0] * matData[0]) + (mData[4] * matData[1]) + (mData[8] * matData[2]) + (mData[12] * matData[3]);
tmpData[1] = (mData[1] * matData[0]) + (mData[5] * matData[1]) + (mData[9] * matData[2]) + (mData[13] * matData[3]);
tmpData[2] = (mData[2] * matData[0]) + (mData[6] * matData[1]) + (mData[10] * matData[2]) + (mData[14] * matData[3]);
tmpData[3] = (mData[3] * matData[0]) + (mData[7] * matData[1]) + (mData[11] * matData[2]) + (mData[15] * matData[3]);
tmpData[4] = (mData[0] * matData[4]) + (mData[4] * matData[5]) + (mData[8] * matData[6]) + (mData[12] * matData[7]);
tmpData[5] = (mData[1] * matData[4]) + (mData[5] * matData[5]) + (mData[9] * matData[6]) + (mData[13] * matData[7]);
tmpData[6] = (mData[2] * matData[4]) + (mData[6] * matData[5]) + (mData[10] * matData[6]) + (mData[14] * matData[7]);
tmpData[7] = (mData[3] * matData[4]) + (mData[7] * matData[5]) + (mData[11] * matData[6]) + (mData[15] * matData[7]);
tmpData[8] = (mData[0] * matData[8]) + (mData[4] * matData[9]) + (mData[8] * matData[10]) + (mData[12] * matData[11]);
tmpData[9] = (mData[1] * matData[8]) + (mData[5] * matData[9]) + (mData[9] * matData[10]) + (mData[13] * matData[11]);
tmpData[10] = (mData[2] * matData[8]) + (mData[6] * matData[9]) + (mData[10] * matData[10]) + (mData[14] * matData[11]);
tmpData[11] = (mData[3] * matData[8]) + (mData[7] * matData[9]) + (mData[11] * matData[10]) + (mData[15] * matData[11]);
tmpData[12] = (mData[0] * matData[12]) + (mData[4] * matData[13]) + (mData[8] * matData[14]) + (mData[12] * matData[15]);
tmpData[13] = (mData[1] * matData[12]) + (mData[5] * matData[13]) + (mData[9] * matData[14]) + (mData[13] * matData[15]);
tmpData[14] = (mData[2] * matData[12]) + (mData[6] * matData[13]) + (mData[10] * matData[14]) + (mData[14] * matData[15]);
tmpData[15] = (mData[3] * matData[12]) + (mData[7] * matData[13]) + (mData[11] * matData[14]) + (mData[15] * matData[15]);
tmp.setData(tmpData);
return tmp;
}