Native DOOM for PS5 from id's linuxdoom-1.10 source

id Software's original engine, made 64-bit clean, on a new platform layer:
VideoOut with tiled scanout, an AGC compute presenter, ScePad, AudioOut,
an OPL FM synth with a DMX-style MUS player, and a headless PC build for
testing. Ships Freedoom as the bundled game; id's own IWADs take priority.

test/present_preview.c

@@ -0,0 +1,58 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "png.h"
+
+static unsigned group_x, item_x;
+
+#define __kernel
+#define __global
+#define __attribute__(x)
+#define __builtin_amdgcn_workgroup_id_x() group_x
+#define __builtin_amdgcn_workitem_id_x() item_x
+#include "present.cl"
+
+#define SRC_W 320
+#define SRC_H 200
+#define OUT_W 1920
+#define OUT_H 1080
+#define VIEW_W 1440
+
+int main(int argc, char **argv)
+{
+    static uint8_t pixels[SRC_W * SRC_H];
+    static uint32_t palette[256], rgba[256];
+    uint32_t *out = calloc(tiled_pixels(OUT_W, OUT_H), 4);
+    uint8_t *rgb = malloc(OUT_W * OUT_H * 3);
+    FILE *f;
+    int i;
+
+    if (argc != 3 || !(f = fopen(argv[1], "rb")))
+    {
+        fprintf(stderr, "usage: present_preview <frame.raw> <out.png>\n");
+        return 2;
+    }
+    if (fread(pixels, 1, sizeof(pixels), f) != sizeof(pixels) ||
+        fread(palette, 4, 256, f) != 256)
+        return 1;
+    fclose(f);
+
+    for (i = 0; i < 256; i++)
+        rgba[i] = (palette[i] & 0xff00ff00u) | (palette[i] >> 16 & 0xff) | (palette[i] & 0xff) << 16;
+
+    for (group_x = 0; group_x < OUT_H; group_x++)
+        for (item_x = 0; item_x < GROUP; item_x++)
+            present(pixels, rgba, out, OUT_W, OUT_W, OUT_H, (OUT_W - VIEW_W) / 2, VIEW_W,
+                            SRC_W, SRC_H);
+
+    for (i = 0; i < OUT_W * OUT_H; i++)
+    {
+        uint32_t c = out[tiled_index(i % OUT_W, i / OUT_W, OUT_W)];
+
+        rgb[i * 3] = c & 0xff;
+        rgb[i * 3 + 1] = c >> 8 & 0xff;
+        rgb[i * 3 + 2] = c >> 16 & 0xff;
+    }
+    return png_write_rgb(argv[2], rgb, OUT_W, OUT_H);
+}