android: 统一APP工程骨架 + 官方渲染管线Kotlin移植(与C参考逐字节一致)

2026-09-06 18:44:02 +08:00
parent dd52469377
commit 5b41a6aa9b
27 changed files with 2184 additions and 0 deletions
@@ -0,0 +1,69 @@
+/* render_offline.c - PC reference runner for the official mag160c pipeline.
+ * Usage: render_offline.exe <ddt> <frames.bin> <out.rgb> <stats.txt>
+ * frames.bin = sequence of complete USB frames (0x38 + 38400 bytes each).
+ * Writes per-frame 320x240x3 RGB24 + one stats line per frame.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "mag160c/mag160c_render.h"
+
+static unsigned rd32(const unsigned char *p) {
+    return p[0] | (p[1] << 8) | (p[2] << 16) | ((unsigned)p[3] << 24);
+}
+
+static void ffc_cb(void *user, int param) { (void)user; (void)param; }
+
+int main(int argc, char **argv) {
+    if (argc < 5) { fprintf(stderr, "usage: %s ddt frames out.rgb stats\n", argv[0]); return 1; }
+    FILE *ff = fopen(argv[2], "rb");
+    if (!ff) { fprintf(stderr, "open frames fail\n"); return 1; }
+    fseek(ff, 0, SEEK_END);
+    long fsz = ftell(ff);
+    fseek(ff, 0, SEEK_SET);
+    unsigned char *buf = malloc(fsz);
+    if (fread(buf, 1, fsz, ff) != (size_t)fsz) { fclose(ff); return 1; }
+    fclose(ff);
+
+    const unsigned frame_len = 38400;
+    const unsigned total = 0x38 + frame_len;
+    if (fsz < (long)total) { fprintf(stderr, "frames too small\n"); return 1; }
+
+    FILE *out = fopen(argv[3], "wb");
+    FILE *st = fopen(argv[4], "w");
+    if (!out || !st) { fprintf(stderr, "open out fail\n"); return 1; }
+
+    mag160c_render_t *r = NULL;
+    mag160c_render_cfg_t cfg;
+    memset(&cfg, 0, sizeof(cfg));
+    cfg.width = 160; cfg.height = 120;
+    cfg.ddt_path = argv[1];
+    cfg.ffc_cb = ffc_cb;
+    cfg.startup_force_ffc = 1;
+    cfg.cdf_pivot_75 = 1;
+    if (mag160c_render_init(&r, &cfg) != MAG160C_OK) {
+        fprintf(stderr, "render init fail\n");
+        return 1;
+    }
+
+    unsigned char *rgb = malloc(320 * 240 * 3);
+    int nframes = fsz / total;
+    for (int f = 0; f < nframes; ++f) {
+        unsigned char *fr = buf + (long)f * total;
+        /* sanity: marker + len */
+        if (rd32(fr) != 0x1bb1b11b) { fprintf(stderr, "bad marker at frame %d\n", f); return 1; }
+        if (rd32(fr + 8) != frame_len) { fprintf(stderr, "bad len at frame %d\n", f); return 1; }
+        if (rd32(fr + 0x1c + frame_len) != 0x1bb1b11c) { fprintf(stderr, "bad trailer at frame %d\n", f); return 1; }
+        mag160c_error_t rc = mag160c_render_frame(r, fr, 1, rgb);
+        if (rc == MAG160C_OK) {
+            fwrite(rgb, 1, 320 * 240 * 3, out);
+            int lo, hi, mn, mx, mean, sd;
+            mag160c_render_get_stats(r, &lo, &hi, &mn, &mx, &mean, &sd);
+            fprintf(st, "%d %d %d %d %d %d %d\n", f, lo, hi, mn, mx, mean, sd);
+        } else {
+            fprintf(st, "%d HIDDEN\n", f);
+        }
+    }
+    fclose(out); fclose(st);
+    return 0;
+}