wow_dbc/tbc_tables/

video_hardware.rs

use crate::{
    DbcTable, Indexable,
};
use crate::header::{
    DbcHeader, HEADER_SIZE, parse_header,
};
use std::io::Write;

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct VideoHardware {
    pub rows: Vec<VideoHardwareRow>,
}

impl DbcTable for VideoHardware {
    type Row = VideoHardwareRow;

    const FILENAME: &'static str = "VideoHardware.dbc";

    fn rows(&self) -> &[Self::Row] { &self.rows }
    fn rows_mut(&mut self) -> &mut [Self::Row] { &mut self.rows }

    fn read(b: &mut impl std::io::Read) -> Result<Self, crate::DbcError> {
        let mut header = [0_u8; HEADER_SIZE];
        b.read_exact(&mut header)?;
        let header = parse_header(&header)?;

        if header.record_size != 92 {
            return Err(crate::DbcError::InvalidHeader(
                crate::InvalidHeaderError::RecordSize {
                    expected: 92,
                    actual: header.record_size,
                },
            ));
        }

        if header.field_count != 23 {
            return Err(crate::DbcError::InvalidHeader(
                crate::InvalidHeaderError::FieldCount {
                    expected: 23,
                    actual: header.field_count,
                },
            ));
        }

        let mut r = vec![0_u8; (header.record_count * header.record_size) as usize];
        b.read_exact(&mut r)?;
        let mut string_block = vec![0_u8; header.string_block_size as usize];
        b.read_exact(&mut string_block)?;

        let mut rows = Vec::with_capacity(header.record_count as usize);

        for mut chunk in r.chunks(header.record_size as usize) {
            let chunk = &mut chunk;

            // id: primary_key (VideoHardware) int32
            let id = VideoHardwareKey::new(crate::util::read_i32_le(chunk)?);

            // vendor_id: int32
            let vendor_id = crate::util::read_i32_le(chunk)?;

            // device_id: int32
            let device_id = crate::util::read_i32_le(chunk)?;

            // farclip_idx: int32
            let farclip_idx = crate::util::read_i32_le(chunk)?;

            // terrain_l_o_d_dist_idx: int32
            let terrain_l_o_d_dist_idx = crate::util::read_i32_le(chunk)?;

            // terrain_shadow_l_o_d: int32
            let terrain_shadow_l_o_d = crate::util::read_i32_le(chunk)?;

            // detail_doodad_density_idx: int32
            let detail_doodad_density_idx = crate::util::read_i32_le(chunk)?;

            // detail_doodad_alpha: int32
            let detail_doodad_alpha = crate::util::read_i32_le(chunk)?;

            // animating_doodad_idx: int32
            let animating_doodad_idx = crate::util::read_i32_le(chunk)?;

            // trilinear: int32
            let trilinear = crate::util::read_i32_le(chunk)?;

            // num_lights: int32
            let num_lights = crate::util::read_i32_le(chunk)?;

            // specularity: int32
            let specularity = crate::util::read_i32_le(chunk)?;

            // water_l_o_d_idx: int32
            let water_l_o_d_idx = crate::util::read_i32_le(chunk)?;

            // particle_density_idx: int32
            let particle_density_idx = crate::util::read_i32_le(chunk)?;

            // unit_draw_dist_idx: int32
            let unit_draw_dist_idx = crate::util::read_i32_le(chunk)?;

            // small_cull_dist_idx: int32
            let small_cull_dist_idx = crate::util::read_i32_le(chunk)?;

            // resolution_idx: int32
            let resolution_idx = crate::util::read_i32_le(chunk)?;

            // base_mip_level: int32
            let base_mip_level = crate::util::read_i32_le(chunk)?;

            // ogl_overrides: string_ref
            let ogl_overrides = {
                let s = crate::util::get_string_as_vec(chunk, &string_block)?;
                String::from_utf8(s)?
            };

            // d3d_overrides: string_ref
            let d3d_overrides = {
                let s = crate::util::get_string_as_vec(chunk, &string_block)?;
                String::from_utf8(s)?
            };

            // fix_lag: int32
            let fix_lag = crate::util::read_i32_le(chunk)?;

            // multisample: int32
            let multisample = crate::util::read_i32_le(chunk)?;

            // atlasdisable: int32
            let atlasdisable = crate::util::read_i32_le(chunk)?;


            rows.push(VideoHardwareRow {
                id,
                vendor_id,
                device_id,
                farclip_idx,
                terrain_l_o_d_dist_idx,
                terrain_shadow_l_o_d,
                detail_doodad_density_idx,
                detail_doodad_alpha,
                animating_doodad_idx,
                trilinear,
                num_lights,
                specularity,
                water_l_o_d_idx,
                particle_density_idx,
                unit_draw_dist_idx,
                small_cull_dist_idx,
                resolution_idx,
                base_mip_level,
                ogl_overrides,
                d3d_overrides,
                fix_lag,
                multisample,
                atlasdisable,
            });
        }

        Ok(VideoHardware { rows, })
    }

    fn write(&self, b: &mut impl Write) -> Result<(), std::io::Error> {
        let header = DbcHeader {
            record_count: self.rows.len() as u32,
            field_count: 23,
            record_size: 92,
            string_block_size: self.string_block_size(),
        };

        b.write_all(&header.write_header())?;

        let mut string_index = 1;
        for row in &self.rows {
            // id: primary_key (VideoHardware) int32
            b.write_all(&row.id.id.to_le_bytes())?;

            // vendor_id: int32
            b.write_all(&row.vendor_id.to_le_bytes())?;

            // device_id: int32
            b.write_all(&row.device_id.to_le_bytes())?;

            // farclip_idx: int32
            b.write_all(&row.farclip_idx.to_le_bytes())?;

            // terrain_l_o_d_dist_idx: int32
            b.write_all(&row.terrain_l_o_d_dist_idx.to_le_bytes())?;

            // terrain_shadow_l_o_d: int32
            b.write_all(&row.terrain_shadow_l_o_d.to_le_bytes())?;

            // detail_doodad_density_idx: int32
            b.write_all(&row.detail_doodad_density_idx.to_le_bytes())?;

            // detail_doodad_alpha: int32
            b.write_all(&row.detail_doodad_alpha.to_le_bytes())?;

            // animating_doodad_idx: int32
            b.write_all(&row.animating_doodad_idx.to_le_bytes())?;

            // trilinear: int32
            b.write_all(&row.trilinear.to_le_bytes())?;

            // num_lights: int32
            b.write_all(&row.num_lights.to_le_bytes())?;

            // specularity: int32
            b.write_all(&row.specularity.to_le_bytes())?;

            // water_l_o_d_idx: int32
            b.write_all(&row.water_l_o_d_idx.to_le_bytes())?;

            // particle_density_idx: int32
            b.write_all(&row.particle_density_idx.to_le_bytes())?;

            // unit_draw_dist_idx: int32
            b.write_all(&row.unit_draw_dist_idx.to_le_bytes())?;

            // small_cull_dist_idx: int32
            b.write_all(&row.small_cull_dist_idx.to_le_bytes())?;

            // resolution_idx: int32
            b.write_all(&row.resolution_idx.to_le_bytes())?;

            // base_mip_level: int32
            b.write_all(&row.base_mip_level.to_le_bytes())?;

            // ogl_overrides: string_ref
            if !row.ogl_overrides.is_empty() {
                b.write_all(&(string_index as u32).to_le_bytes())?;
                string_index += row.ogl_overrides.len() + 1;
            }
            else {
                b.write_all(&(0_u32).to_le_bytes())?;
            }

            // d3d_overrides: string_ref
            if !row.d3d_overrides.is_empty() {
                b.write_all(&(string_index as u32).to_le_bytes())?;
                string_index += row.d3d_overrides.len() + 1;
            }
            else {
                b.write_all(&(0_u32).to_le_bytes())?;
            }

            // fix_lag: int32
            b.write_all(&row.fix_lag.to_le_bytes())?;

            // multisample: int32
            b.write_all(&row.multisample.to_le_bytes())?;

            // atlasdisable: int32
            b.write_all(&row.atlasdisable.to_le_bytes())?;

        }

        self.write_string_block(b)?;

        Ok(())
    }

}

impl Indexable for VideoHardware {
    type PrimaryKey = VideoHardwareKey;
    fn get(&self, key: impl TryInto<Self::PrimaryKey>) -> Option<&Self::Row> {
        let key = key.try_into().ok()?;
        self.rows.iter().find(|a| a.id.id == key.id)
    }

    fn get_mut(&mut self, key: impl TryInto<Self::PrimaryKey>) -> Option<&mut Self::Row> {
        let key = key.try_into().ok()?;
        self.rows.iter_mut().find(|a| a.id.id == key.id)
    }
}

impl VideoHardware {
    fn write_string_block(&self, b: &mut impl Write) -> Result<(), std::io::Error> {
        b.write_all(&[0])?;

        for row in &self.rows {
            if !row.ogl_overrides.is_empty() { b.write_all(row.ogl_overrides.as_bytes())?; b.write_all(&[0])?; };
            if !row.d3d_overrides.is_empty() { b.write_all(row.d3d_overrides.as_bytes())?; b.write_all(&[0])?; };
        }

        Ok(())
    }

    fn string_block_size(&self) -> u32 {
        let mut sum = 1;
        for row in &self.rows {
            if !row.ogl_overrides.is_empty() { sum += row.ogl_overrides.len() + 1; };
            if !row.d3d_overrides.is_empty() { sum += row.d3d_overrides.len() + 1; };
        }

        sum as u32
    }

}

#[derive(Debug, Clone, Copy, PartialEq, Eq, Ord, PartialOrd, Hash, Default)]
pub struct VideoHardwareKey {
    pub id: i32
}

impl VideoHardwareKey {
    pub const fn new(id: i32) -> Self {
        Self { id }
    }

}

impl From<u8> for VideoHardwareKey {
    fn from(v: u8) -> Self {
        Self::new(v.into())
    }
}

impl From<u16> for VideoHardwareKey {
    fn from(v: u16) -> Self {
        Self::new(v.into())
    }
}

impl From<i8> for VideoHardwareKey {
    fn from(v: i8) -> Self {
        Self::new(v.into())
    }
}

impl From<i16> for VideoHardwareKey {
    fn from(v: i16) -> Self {
        Self::new(v.into())
    }
}

impl From<i32> for VideoHardwareKey {
    fn from(v: i32) -> Self {
        Self::new(v)
    }
}

impl TryFrom<u32> for VideoHardwareKey {
    type Error = u32;
    fn try_from(v: u32) -> Result<Self, Self::Error> {
        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
    }
}

impl TryFrom<usize> for VideoHardwareKey {
    type Error = usize;
    fn try_from(v: usize) -> Result<Self, Self::Error> {
        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
    }
}

impl TryFrom<u64> for VideoHardwareKey {
    type Error = u64;
    fn try_from(v: u64) -> Result<Self, Self::Error> {
        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
    }
}

impl TryFrom<i64> for VideoHardwareKey {
    type Error = i64;
    fn try_from(v: i64) -> Result<Self, Self::Error> {
        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
    }
}

impl TryFrom<isize> for VideoHardwareKey {
    type Error = isize;
    fn try_from(v: isize) -> Result<Self, Self::Error> {
        Ok(TryInto::<i32>::try_into(v).ok().ok_or(v)?.into())
    }
}

#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
pub struct VideoHardwareRow {
    pub id: VideoHardwareKey,
    pub vendor_id: i32,
    pub device_id: i32,
    pub farclip_idx: i32,
    pub terrain_l_o_d_dist_idx: i32,
    pub terrain_shadow_l_o_d: i32,
    pub detail_doodad_density_idx: i32,
    pub detail_doodad_alpha: i32,
    pub animating_doodad_idx: i32,
    pub trilinear: i32,
    pub num_lights: i32,
    pub specularity: i32,
    pub water_l_o_d_idx: i32,
    pub particle_density_idx: i32,
    pub unit_draw_dist_idx: i32,
    pub small_cull_dist_idx: i32,
    pub resolution_idx: i32,
    pub base_mip_level: i32,
    pub ogl_overrides: String,
    pub d3d_overrides: String,
    pub fix_lag: i32,
    pub multisample: i32,
    pub atlasdisable: i32,
}