ml
a5ec8db5f7
build / build (push) Failing after 5s
dependency (SDL2, SDL2_mixer, fluidsynth-lite, a MIDI soundfont) prebuilt, so compiling the engine needs no network access - just the image and the engine source. Add res/assets/extract_assets.sh to pull the game's data files out of a purchased GOG installer, and a Makefile that assembles a runnable dist/ from the two. Also add `make package`, which builds a redistributable tarball that omits the proprietary game assets (shipping res/GET_ASSETS.txt instead) plus license information for both the MIT tooling and the GPLv3 engine, and a Gitea Actions workflow that builds and publishes it to dl.ladkau.de on every push.
563 lines
17 KiB
C
563 lines
17 KiB
C
/*
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Copyright (C) 2015-2018 Night Dive Studios, LLC.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// Implementation solid transparent mappers
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//
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// This file is part of the 2d library.
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//
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#include "cnvdat.h"
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#include "fl8tf.h"
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#include "gente.h"
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#include "poly.h"
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#include "tmapint.h"
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#include "vtab.h"
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// prototypes
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int gri_trans_solid_lin_umap_loop(grs_tmap_loop_info *tli);
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int gri_trans_solid_floor_umap_loop(grs_tmap_loop_info *tli);
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int gri_solid_wall_umap_loop(grs_tmap_loop_info *tli);
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void gri_trans_solid_per_umap_hscan_scanline(grs_per_info *pi, grs_bitmap *bm);
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void gri_trans_solid_per_umap_vscan_scanline(grs_per_info *pi, grs_bitmap *bm);
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int gri_trans_solid_lin_umap_loop(grs_tmap_loop_info *tli) {
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fix u, v, du, dv, dx, d;
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// locals used to store copies of tli-> stuff, so its in registers on the PPC
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int x;
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uchar solid_color;
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int t_xl, t_xr;
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uchar *p_dest;
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int32_t *t_vtab;
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uchar *t_bits;
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uchar *t_clut;
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uchar t_wlog;
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uint32_t t_mask;
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int32_t gr_row;
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uchar *start_pdest;
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solid_color = tli->solid;
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u = tli->left.u;
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du = tli->right.u - u;
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v = tli->left.v;
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dv = tli->right.v - v;
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dx = tli->right.x - tli->left.x;
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t_vtab = tli->vtab;
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t_mask = tli->mask;
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t_wlog = tli->bm.wlog;
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t_bits = tli->bm.bits;
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gr_row = grd_bm.row;
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start_pdest = grd_bm.bits + (gr_row * (tli->y));
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do {
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if ((d = fix_ceil(tli->right.x) - fix_ceil(tli->left.x)) > 0) {
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d = fix_ceil(tli->left.x) - tli->left.x;
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du = fix_div(du, dx);
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dv = fix_div(dv, dx);
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u += fix_mul(du, d);
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v += fix_mul(dv, d);
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// copy out tli-> stuff into locals
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t_xl = fix_cint(tli->left.x);
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t_xr = fix_cint(tli->right.x);
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p_dest = start_pdest + t_xl;
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if (tli->bm.hlog == GRL_TRANS) {
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for (x = t_xl; x < t_xr; x++) {
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if (t_bits[t_vtab[fix_fint(v)] + fix_fint(u)])
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*p_dest = solid_color; // gr_fill_upixel(t_bits[k],x,y);
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p_dest++;
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u += du;
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v += dv;
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}
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} else {
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for (x = t_xl; x < t_xr; x++) {
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if (t_bits[((fix_fint(v) << t_wlog) + fix_fint(u)) & t_mask])
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*p_dest = solid_color; // gr_fill_upixel(t_bits[k],x,y);
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p_dest++;
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u += du;
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v += dv;
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}
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}
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} else if (d < 0)
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return TRUE; /* punt this tmap */
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u = (tli->left.u += tli->left.du);
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tli->right.u += tli->right.du;
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du = tli->right.u - u;
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v = (tli->left.v += tli->left.dv);
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tli->right.v += tli->right.dv;
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dv = tli->right.v - v;
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tli->left.x += tli->left.dx;
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tli->right.x += tli->right.dx;
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dx = tli->right.x - tli->left.x;
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tli->y++;
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start_pdest += gr_row;
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} while (--(tli->n) > 0);
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return FALSE; /* tmap OK */
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}
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void gri_trans_solid_lin_umap_init(grs_tmap_loop_info *tli) {
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if ((tli->bm.row == (1 << tli->bm.wlog)) && (tli->bm.h == (1 << tli->bm.hlog))) {
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tli->mask = (1 << (tli->bm.hlog + tli->bm.wlog)) - 1;
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tli->bm.hlog = GRL_TRANS | GRL_LOG2;
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} else {
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tli->vtab = gr_make_vtab(&(tli->bm));
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tli->bm.hlog = GRL_TRANS;
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}
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tli->loop_func = (void (*)())gri_trans_solid_lin_umap_loop;
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tli->right_edge_func = (void (*)())gri_uvx_edge;
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tli->left_edge_func = (void (*)())gri_uvx_edge;
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}
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int gri_trans_solid_floor_umap_loop(grs_tmap_loop_info *tli) {
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fix u, v, du, dv, dx, d;
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uchar solid_color;
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int x;
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// locals used to store copies of tli-> stuff, so its in registers on the PPC
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int t_xl, t_xr, t_y, gr_row;
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int32_t *t_vtab;
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uchar *t_bits;
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uchar *p_dest;
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uchar temp_pix;
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uchar t_wlog;
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uint32_t t_mask;
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solid_color = tli->solid;
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u = fix_div(tli->left.u, tli->w);
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du = fix_div(tli->right.u, tli->w) - u;
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v = fix_div(tli->left.v, tli->w);
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dv = fix_div(tli->right.v, tli->w) - v;
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dx = tli->right.x - tli->left.x;
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t_mask = tli->mask;
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t_wlog = tli->bm.wlog;
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t_vtab = tli->vtab;
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t_bits = tli->bm.bits;
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gr_row = grd_bm.row;
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do {
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if ((d = fix_ceil(tli->right.x) - fix_ceil(tli->left.x)) > 0) {
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d = fix_ceil(tli->left.x) - tli->left.x;
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du = fix_div(du, dx);
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u += fix_mul(du, d);
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dv = fix_div(dv, dx);
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v += fix_mul(dv, d);
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// copy out tli-> stuff into locals
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t_xl = fix_cint(tli->left.x);
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t_xr = fix_cint(tli->right.x);
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t_y = tli->y;
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p_dest = grd_bm.bits + (grd_bm.row * t_y) + t_xl;
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if (tli->bm.hlog == GRL_TRANS) {
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for (x = t_xl; x < t_xr; x++) {
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int k = t_vtab[fix_fint(v)] + fix_fint(u);
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if (t_bits[k])
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*p_dest = solid_color; // gr_fill_upixel(t_bits[k],x,t_y);
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p_dest++;
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u += du;
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v += dv;
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}
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} else {
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for (x = t_xl; x < t_xr; x++) {
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int k = ((fix_fint(v) << t_wlog) + fix_fint(u)) & t_mask;
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if (t_bits[k])
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*p_dest = solid_color; // gr_fill_upixel(t_bits[k],x,t_y);
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p_dest++;
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u += du;
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v += dv;
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}
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}
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} else if (d < 0)
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return TRUE; /* punt this tmap */
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tli->w += tli->dw;
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u = fix_div((tli->left.u += tli->left.du), tli->w);
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tli->right.u += tli->right.du;
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du = fix_div(tli->right.u, tli->w) - u;
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v = fix_div((tli->left.v += tli->left.dv), tli->w);
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tli->right.v += tli->right.dv;
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dv = fix_div(tli->right.v, tli->w) - v;
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tli->left.x += tli->left.dx;
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tli->right.x += tli->right.dx;
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dx = tli->right.x - tli->left.x;
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tli->y++;
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} while (--(tli->n) > 0);
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return FALSE; /* tmap OK */
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}
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void gri_trans_solid_floor_umap_init(grs_tmap_loop_info *tli) {
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if ((tli->bm.row == (1 << tli->bm.wlog)) && (tli->bm.h == (1 << tli->bm.hlog))) {
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tli->mask = (1 << (tli->bm.hlog + tli->bm.wlog)) - 1;
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tli->bm.hlog = GRL_TRANS | GRL_LOG2;
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} else {
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tli->vtab = gr_make_vtab(&(tli->bm));
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tli->bm.hlog = GRL_TRANS;
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}
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tli->loop_func = (void (*)())gri_trans_solid_floor_umap_loop;
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tli->left_edge_func = (void (*)())gri_uvwx_edge;
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tli->right_edge_func = (void (*)())gri_uvwx_edge;
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}
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int gri_solid_wall_umap_loop(grs_tmap_loop_info *tli) {
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fix u, v, du, dv, dy, d;
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uchar solid_color;
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// locals used to store copies of tli-> stuff, so its in registers on the PPC
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int t_yl, t_yr;
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int32_t *t_vtab;
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uchar *t_bits;
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uchar *p_dest;
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uchar *t_clut;
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uchar t_wlog;
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uint32_t t_mask;
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int32_t gr_row;
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int y;
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solid_color = tli->solid;
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u = fix_div(tli->left.u, tli->w);
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du = fix_div(tli->right.u, tli->w) - u;
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v = fix_div(tli->left.v, tli->w);
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dv = fix_div(tli->right.v, tli->w) - v;
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dy = tli->right.y - tli->left.y;
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t_bits = tli->bm.bits;
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t_vtab = tli->vtab;
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t_mask = tli->mask;
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t_wlog = tli->bm.wlog;
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gr_row = grd_bm.row;
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// handle PowerPC loop
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do {
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if ((d = fix_ceil(tli->right.y) - fix_ceil(tli->left.y)) > 0) {
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d = fix_ceil(tli->left.y) - tli->left.y;
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du = fix_div(du, dy);
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dv = fix_div(dv, dy);
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u += fix_mul(du, d);
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v += fix_mul(dv, d);
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t_yl = fix_cint(tli->left.y);
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t_yr = fix_cint(tli->right.y);
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p_dest = grd_bm.bits + (gr_row * t_yl) + tli->x;
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if (tli->bm.hlog == GRL_TRANS) {
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for (y = t_yl; y < t_yr; y++) {
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int k = t_vtab[fix_fint(v)] + fix_fint(u);
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if (t_bits[k])
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*p_dest = solid_color; // gr_fill_upixel(t_bits[k],t_x,y);
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p_dest += gr_row;
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u += du;
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v += dv;
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}
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} else {
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for (y = t_yl; y < t_yr; y++) {
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int k = ((fix_fint(v) << t_wlog) + fix_fint(u)) & t_mask;
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if (t_bits[k])
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*p_dest = solid_color; // gr_fill_upixel(t_bits[k],t_x,y);
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p_dest += gr_row;
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u += du;
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v += dv;
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}
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}
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} else if (d < 0)
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return TRUE; /* punt this tmap */
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tli->w += tli->dw;
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u = fix_div((tli->left.u += tli->left.du), tli->w);
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tli->right.u += tli->right.du;
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du = fix_div(tli->right.u, tli->w) - u;
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v = fix_div((tli->left.v += tli->left.dv), tli->w);
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tli->right.v += tli->right.dv;
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dv = fix_div(tli->right.v, tli->w) - v;
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tli->left.y += tli->left.dy;
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tli->right.y += tli->right.dy;
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dy = tli->right.y - tli->left.y;
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tli->x++;
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} while (--(tli->n) > 0);
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return FALSE;
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}
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void gri_trans_solid_wall_umap_init(grs_tmap_loop_info *tli) {
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if ((tli->bm.row == (1 << tli->bm.wlog)) && (tli->bm.h == (1 << tli->bm.hlog))) {
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tli->mask = (1 << (tli->bm.hlog + tli->bm.wlog)) - 1;
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tli->bm.hlog = GRL_TRANS | GRL_LOG2;
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} else {
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tli->vtab = gr_make_vtab(&(tli->bm));
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tli->bm.hlog = GRL_TRANS;
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}
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tli->loop_func = (void (*)())gri_solid_wall_umap_loop;
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tli->left_edge_func = (void (*)())gri_uvwy_edge;
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tli->right_edge_func = (void (*)())gri_uvwy_edge;
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}
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void gri_trans_solid_per_umap_hscan_scanline(grs_per_info *pi, grs_bitmap *bm) {
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int y_cint;
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uchar *p;
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uchar solid_color;
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// locals used to speed PPC code
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fix l_u, l_v, l_du, l_dv, l_y_fix, l_scan_slope, l_dtl, l_dxl, l_dyl, l_dtr, l_dyr;
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int l_x, l_xl, l_xr, l_xr0, l_u_mask, l_v_mask, l_v_shift;
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int gr_row, temp_y;
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uchar *bm_bits;
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solid_color = pi->fill_parm;
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gr_row = grd_bm.row;
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bm_bits = bm->bits;
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l_dyr = pi->dyr;
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l_dtr = pi->dtr;
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l_dyl = pi->dyl;
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l_dxl = pi->dxl;
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l_dtl = pi->dtl;
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l_scan_slope = pi->scan_slope;
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l_y_fix = pi->y_fix;
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l_v_shift = pi->v_shift;
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l_v_mask = pi->v_mask;
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l_u_mask = pi->u_mask;
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l_xr0 = pi->xr0;
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l_x = pi->x;
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l_xl = pi->xl;
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l_xr = pi->xr;
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l_u = pi->u;
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l_v = pi->v;
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l_du = pi->du;
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l_dv = pi->dv;
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l_y_fix = l_x * l_scan_slope + fix_make(pi->yp, 0xffff);
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l_u = pi->u0 + fix_div(pi->unum, pi->denom);
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l_v = pi->v0 + fix_div(pi->vnum, pi->denom);
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l_du = fix_div(pi->dunum, pi->denom);
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l_dv = fix_div(pi->dvnum, pi->denom);
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l_u += l_x * l_du;
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l_v += l_x * l_dv;
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y_cint = fix_int(l_y_fix);
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if (l_scan_slope < 0)
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gr_row = -gr_row;
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p = grd_bm.bits + l_x + y_cint * grd_bm.row;
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if (l_x < l_xl) {
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fix test = l_x * l_dyl - y_cint * l_dxl + pi->cl;
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for (; l_x < l_xl; l_x++) {
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if (test <= 0) {
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int k = (l_u >> 16) & l_u_mask;
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k += (l_v >> l_v_shift) & l_v_mask;
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if (bm_bits[k])
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*p = solid_color; // gr_fill_upixel(bm_bits[k],l_x,y_cint);
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}
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temp_y = y_cint;
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y_cint = fix_int(l_y_fix += l_scan_slope);
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if (temp_y != y_cint) {
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test += l_dtl;
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p += gr_row;
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} else
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test += l_dyl;
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p++;
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l_u += l_du;
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l_v += l_dv;
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}
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}
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for (; l_x < l_xr0; l_x++) {
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int k = (l_u >> 16) & l_u_mask;
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k += (l_v >> l_v_shift) & l_v_mask;
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if (bm_bits[k])
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*p = solid_color; // gr_fill_upixel(bm_bits[k],l_x,y_cint);
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temp_y = y_cint;
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y_cint = fix_int(l_y_fix += l_scan_slope);
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if (temp_y != y_cint) // y_cint=fix_int((l_y_fix+=l_scan_slope));
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{
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temp_y -= y_cint;
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p += gr_row;
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}
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p++;
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l_u += l_du;
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l_v += l_dv;
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}
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if (l_x < l_xr) {
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fix test = l_x * l_dyr - y_cint * pi->dxr + pi->cr;
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p = grd_bm.bits + l_x + y_cint * grd_bm.row;
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for (; l_x < l_xr; l_x++) {
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if (test >= 0) {
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int k = (l_u >> 16) & l_u_mask;
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k += (l_v >> l_v_shift) & l_v_mask;
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if (bm_bits[k])
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*p = solid_color; // gr_fill_upixel(bm_bits[k],l_x,y_cint);
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}
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temp_y = y_cint;
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y_cint = fix_int(l_y_fix += l_scan_slope);
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if (temp_y != y_cint) {
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test += l_dtr;
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p += gr_row;
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} else
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test += l_dyr;
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p++;
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l_u += l_du;
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l_v += l_dv;
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}
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}
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|
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pi->y_fix = l_y_fix;
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pi->x = l_x;
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pi->u = l_u;
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pi->v = l_v;
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pi->du = l_du;
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pi->dv = l_dv;
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}
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void gri_trans_solid_per_umap_vscan_scanline(grs_per_info *pi, grs_bitmap *bm) {
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int x_cint;
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uchar solid_color;
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// locals used to speed PPC code
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fix l_dxr, l_x_fix, l_u, l_v, l_du, l_dv, l_scan_slope, l_dtl, l_dxl, l_dyl, l_dtr, l_dyr;
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int l_yl, l_yr0, l_yr, l_y, l_u_mask, l_v_mask, l_v_shift;
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int gr_row, temp_x;
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uchar *bm_bits;
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uchar *p;
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solid_color = pi->fill_parm;
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gr_row = grd_bm.row;
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bm_bits = bm->bits;
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l_dxr = pi->dxr;
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l_x_fix = pi->x_fix;
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l_y = pi->y;
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l_yr = pi->yr;
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l_yr0 = pi->yr0;
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l_yl = pi->yl;
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l_dyr = pi->dyr;
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l_dtr = pi->dtr;
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l_dyl = pi->dyl;
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l_dxl = pi->dxl;
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l_dtl = pi->dtl;
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l_scan_slope = pi->scan_slope;
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l_v_shift = pi->v_shift;
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l_v_mask = pi->v_mask;
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l_u_mask = pi->u_mask;
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l_u = pi->u;
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l_v = pi->v;
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l_du = pi->du;
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l_dv = pi->dv;
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|
|
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l_x_fix = l_y * l_scan_slope + fix_make(pi->xp, 0xffff);
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|
|
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l_u = pi->u0 + fix_div(pi->unum, pi->denom);
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l_v = pi->v0 + fix_div(pi->vnum, pi->denom);
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l_du = fix_div(pi->dunum, pi->denom);
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l_dv = fix_div(pi->dvnum, pi->denom);
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l_u += l_y * l_du;
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l_v += l_y * l_dv;
|
|
|
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x_cint = fix_int(l_x_fix);
|
|
p = grd_bm.bits + x_cint + l_y * gr_row;
|
|
if (l_y < l_yl) {
|
|
fix test = l_y * l_dxl - x_cint * l_dyl + pi->cl;
|
|
for (; l_y < l_yl; l_y++) {
|
|
if (test <= 0) {
|
|
int k = (l_u >> 16) & l_u_mask;
|
|
k += (l_v >> l_v_shift) & l_v_mask;
|
|
if (bm_bits[k])
|
|
*p = solid_color; // gr_fill_upixel(bm_bits[k],x_cint,l_y);
|
|
}
|
|
temp_x = x_cint;
|
|
x_cint = fix_int(l_x_fix += l_scan_slope);
|
|
if (temp_x != x_cint) {
|
|
test += l_dtl;
|
|
p -= (temp_x - x_cint);
|
|
} else
|
|
test += l_dxl;
|
|
|
|
p += gr_row;
|
|
l_u += l_du;
|
|
l_v += l_dv;
|
|
}
|
|
}
|
|
|
|
for (; l_y < l_yr0; l_y++) {
|
|
int k = (l_u >> 16) & l_u_mask;
|
|
k += (l_v >> l_v_shift) & l_v_mask;
|
|
if (bm_bits[k])
|
|
*p = solid_color; // gr_fill_upixel(bm_bits[k],x_cint,l_y);
|
|
|
|
temp_x = x_cint;
|
|
x_cint = fix_int(l_x_fix += l_scan_slope);
|
|
if (temp_x != x_cint)
|
|
p -= (temp_x - x_cint);
|
|
|
|
p += gr_row;
|
|
l_u += l_du;
|
|
l_v += l_dv;
|
|
}
|
|
|
|
if (l_y < l_yr) {
|
|
fix test = l_y * l_dxr - x_cint * l_dyr + pi->cr;
|
|
p = grd_bm.bits + x_cint + l_y * gr_row;
|
|
for (; l_y < l_yr; l_y++) {
|
|
if (test >= 0) {
|
|
int k = (l_u >> 16) & l_u_mask;
|
|
k += (l_v >> l_v_shift) & l_v_mask;
|
|
if (bm_bits[k])
|
|
*p = solid_color; // gr_fill_upixel(bm_bits[k],x_cint,l_y);
|
|
}
|
|
|
|
temp_x = x_cint;
|
|
x_cint = fix_int(l_x_fix += l_scan_slope);
|
|
if (temp_x != x_cint) {
|
|
test += l_dtr;
|
|
p -= (temp_x - x_cint);
|
|
} else
|
|
test += l_dxr;
|
|
|
|
p += gr_row;
|
|
l_u += l_du;
|
|
l_v += l_dv;
|
|
}
|
|
}
|
|
|
|
pi->x_fix = l_x_fix;
|
|
pi->y = l_y;
|
|
pi->u = l_u;
|
|
pi->v = l_v;
|
|
pi->du = l_du;
|
|
pi->dv = l_dv;
|
|
}
|
|
|
|
extern void gri_per_umap_hscan(grs_bitmap *bm, int n, grs_vertex **vpl, grs_per_setup *ps);
|
|
extern void gri_per_umap_vscan(grs_bitmap *bm, int n, grs_vertex **vpl, grs_per_setup *ps);
|
|
|
|
void gri_trans_solid_per_umap_hscan_init(grs_bitmap *bm, grs_per_setup *ps) {
|
|
ps->shell_func = (void (*)())gri_per_umap_hscan;
|
|
ps->scanline_func = (void (*)())gri_trans_solid_per_umap_hscan_scanline;
|
|
}
|
|
|
|
void gri_trans_solid_per_umap_vscan_init(grs_bitmap *bm, grs_per_setup *ps) {
|
|
ps->shell_func = (void (*)())gri_per_umap_vscan;
|
|
ps->scanline_func = (void (*)())gri_trans_solid_per_umap_vscan_scanline;
|
|
}
|