void StaticGeometryHandler::add_for_draw(DatasetReference dataset, const LMatrix4f &transform) {
PTA_uchar handle = _drawn_objects_tex->modify_ram_image();
float* f_handle = reinterpret_cast<float*>(handle.p());
// Store the new amount of rendered objects
f_handle[0] = _num_rendered_objects + 1;
f_handle[1] = 0;
f_handle[2] = 0;
f_handle[3] = 0;
int data_offset = 4 + _num_rendered_objects * 20;
f_handle[data_offset++] = dataset; // Render object with ID n
f_handle[data_offset++] = 0; // reserved
f_handle[data_offset++] = 0; // reserved
f_handle[data_offset++] = 0; // reserved
for (LMatrix4f::iterator iter = transform.begin(); iter != transform.end(); ++iter) {
f_handle[data_offset++] = (*iter);
}
_num_rendered_objects ++;
}
/**
* @brief Writes the GPU command to a given target.
* @details This method writes all the data of the GPU command to a given target.
* The target should be a pointer to memory being big enough to hold the
* data. Presumably #dest will be a handle to texture memory.
* The command_index controls the offset where the data will be written
* to.
*
* @param dest Handle to the memory to write the command to
* @param command_index Offset to write the command to. The command will write
* its data to command_index * GPU_COMMAND_ENTRIES. When writing
* the GPUCommand in a GPUCommandList, the command_index will
* most likely be the index of the command in the list.
*/
void GPUCommand::write_to(const PTA_uchar &dest, size_t command_index) {
size_t command_size = GPU_COMMAND_ENTRIES * sizeof(float);
size_t offset = command_index * command_size;
memcpy(dest.p() + offset, &_data, command_size);
}
