add sample program of lvgl over PEG for 5gen brain

2026-09-22 07:32:11 +09:00 · 2026-09-21 17:19:29 +09:00
parent d48949419e
commit 5f97124e9d
13 changed files with 2666 additions and 0 deletions
@@ -0,0 +1,71 @@
+#ifndef PEG_FUNC_H
+#define PEG_FUNC_H
+
+#include "peg_const.h"
+
+/* ===== Function-pointer typedefs =========================================
+ * Since we can't run C++ static init (no ELF loader), method prototypes
+ * from the PEG SDK are re-declared here as function pointers, addressed
+ * directly at the fixed kernel export slots. */
+
+typedef void* (*decwin_ctor_proc)   (void* self, unsigned short style);
+typedef void  (*pegrect_set_proc)   (short* rect, short x1, short y1,
+                                     short x2, short y2);
+typedef void  (*screen_rect_proc)   (void* pm, short out_rect[4]);
+typedef void  (*adjust_client_proc) (void* self);
+typedef void  (*win_begin_draw_proc)(void* self, const struct PegRect* rect);
+typedef void  (*win_base_draw_proc) (void* self, const struct PegRect* rect);
+typedef void* (*get_screen_proc)    (void);
+typedef void  (*set_current_proc)   (void* pm, void* target);
+typedef void  (*pt_settimer_proc)   (void* pWho, unsigned int Id,
+                                     unsigned int Count, unsigned int Reset);
+typedef void  (*pt_killtimer_proc)  (void* pWho, unsigned int Id);
+typedef void  (*pt_destroy_proc)    (void* pSource, void* pTarget);
+typedef void  (*sh_exitapp_proc)    (char* path);
+
+/* PegScreen vtable slots */
+typedef struct __attribute__((packed)) {
+    unsigned char  bpp;
+    unsigned char  flags;
+    unsigned short wWidth;
+    unsigned short wHeight;
+    unsigned short reserved;
+    unsigned int   refcount;
+    unsigned char* pData;
+} PegBitmap;
+typedef void (*scr_bitmap_fn) (void* scr, int packed_xy, PegBitmap* bmp);
+typedef void (*scr_enddraw_fn)(void* scr);
+
+/* Signature of every PegThing::Message override (vfunc[19]) */
+typedef int (*msg_fn_t)(void* self, const struct PegMessage* msg);
+
+/* ===== Kernel export addresses (x1ram, verified) ========================
+ * Most PEG_* addresses in the 0x60004000-0x60006FFF range are jump-table
+ * trampolines (`ldr pc,[pc,#-4]; .word ADDR`); a few point straight at
+ * the implementation. sh_ExitApp lives in Brain's shell area, not PEG. */
+
+#define PEG_DecWindow_ctor  ((decwin_ctor_proc)   0x6000486c)  /* ord 0x09 */
+#define PEG_RectSet         ((pegrect_set_proc)   0x60004130)  /* ord 0x23 */
+#define PEG_ScreenRect      ((screen_rect_proc)   0x60005358)  /* ord 0x0B */
+#define PEG_AdjustClient    ((adjust_client_proc) 0x60004850)  /* ord 0x07 */
+#define PEG_WinBeginDraw    ((win_begin_draw_proc)0x60004590)  /* → 6010D050 → screen.vfunc[3] */
+#define PEG_WinBaseDraw     ((win_base_draw_proc) 0x6000602C)  /* → 600478EC = PegWindow::Draw base */
+#define PEG_GetScreen       ((get_screen_proc)    0x60004144)  /* → 600B5520 */
+#define PEG_SetCurrent      ((set_current_proc)   0x600313C8)  /* PresMgr, routes key input */
+#define PEG_SetTimer        ((pt_settimer_proc)   0x600470A0)  /* PegThing wrapper — Count/Reset in PEG ticks */
+#define PEG_KillTimer       ((pt_killtimer_proc)  0x600470D0)  /* PegThing wrapper */
+#define PEG_Destroy         ((pt_destroy_proc)    0x6002A3E4)  /* posts PM_DESTROY to pTarget */
+
+/* Brain shell function — hands control back to the launcher.
+ * NEVER RETURNS; call after cleaning up owned resources. */
+#define sh_ExitApp          ((sh_exitapp_proc)    0x840E7A48)
+
+/* PegScreen vtable slots we call directly */
+#define SCR_VF_BITMAP  4    /* Bitmap blit — screen->vfunc[4](packed_xy, bmp) */
+#define SCR_VF_ENDDRAW 16   /* EndDraw     — flushes MemoryToScreen when nesting=0 */
+
+/* PegThing vtable slots we override */
+#define VFUNC_DRAW    12
+#define VFUNC_MESSAGE 19
+
+#endif  /* PEG_FUNC_H */