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2V0-g: port the .fnt font pipeline over a FreeType GDI emulation

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CGraphicText, CGraphicFontTexture and CGraphicDib are the 40250 bodies
verbatim; CGraphicTextInstance is verbatim except that its D3D draws become
UI render commands (one image quad per glyph, Bar for cursor/underline).

- platform/Win32Gdi.cpp: the GDI subset those files call, over vendored
  FreeType 2.13.3, following GDI's LOGFONT cell height, win metrics and gasp
  rules; system font lookup with substitute and CJK fallback faces
- Win32Crt: MultiByteToWideChar / WideCharToMultiByte (UTF-8 and 1252 by
  hand, other code pages through iconv)
- CGraphicImageTexture memory textures: glyph pages reach Godot as
  "mem:<id>@<revision>"; Metin2PythonHost.memory_texture + Canvas cache
- Util.cpp code page / font face table, SetDefaultCodePage at boot,
  DefaultFont_* block, fnt resource type, GetMaxTextureWidth/Height
- TextTag, StringCodec, Arabic, Vietnamese copied from 40250
- tests: port.text (Tahoma 12 metrics, alignment, CP949), port.app_loop
  and python_host_test.gd now check glyph quads instead of text commands

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
shenlei
2026-09-23 14:17:25 +09:00
co-authored by Claude Opus 5.5
parent 141206cb69
commit afe63bfa61
272 changed files with 137097 additions and 316 deletions
Download Patch File Download Diff File Expand all files Collapse all files
extension/src/port/common/shim/win32/windows.h
+4 -1
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@@ -1,10 +1,13 @@
#pragma once
// Shim for <windows.h> on non-Windows targets: the Win32 scalar types and CRT spellings
// 40250 sources use (common/Win32Types.h, common/Win32Crt.h), plus the headers the real one pulls
// in that 40250 relies on transitively (winnt.h brings <string.h> for memcpy/memset).
// in that 40250 relies on transitively (winnt.h brings <string.h> for memcpy/memset, and <wchar.h>
// for wcslen).
#include <string.h>
#include <wchar.h>
#include "../../Win32Types.h"
#include "../../Win32Crt.h"
#include "wingdi.h"
// winuser.h / wingdi.h constants named in 40250 declarations (default arguments).
#define WS_OVERLAPPED 0x00000000L
extension/src/port/common/shim/win32/wingdi.h
+64
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@@ -0,0 +1,64 @@
#pragma once
// Shim for the <wingdi.h> subset the 40250 font path uses (EterLib/GrpDIB, GrpFontTexture, Util).
// The calls are implemented by the platform layer over FreeType (platform/Win32Gdi.cpp): one DIB
// per memory DC, glyphs rendered the way GDI lays out a TrueType face for a LOGFONT cell height.
#include "../../Win32Types.h"
typedef DWORD COLORREF;
typedef void* HGDIOBJ;
#define RGB(r, g, b) ((COLORREF)(((BYTE)(r) | ((WORD)((BYTE)(g)) << 8)) | (((DWORD)(BYTE)(b)) << 16)))
typedef struct _ABCFLOAT
{
FLOAT abcfA;
FLOAT abcfB;
FLOAT abcfC;
} ABCFLOAT, *LPABCFLOAT;
#define TRANSPARENT 1
#define OPAQUE 2
#define FW_NORMAL 400
#define FW_BOLD 700
#define OUT_DEFAULT_PRECIS 0
#define CLIP_DEFAULT_PRECIS 0
#define DEFAULT_QUALITY 0
#define NONANTIALIASED_QUALITY 3
#define ANTIALIASED_QUALITY 4
#define DEFAULT_PITCH 0
#define ANSI_CHARSET 0
#define DEFAULT_CHARSET 1
#define SHIFTJIS_CHARSET 128
#define HANGUL_CHARSET 129
#define GB2312_CHARSET 134
#define CHINESEBIG5_CHARSET 136
#define GREEK_CHARSET 161
#define TURKISH_CHARSET 162
#define VIETNAMESE_CHARSET 163
#define HEBREW_CHARSET 177
#define ARABIC_CHARSET 178
#define BALTIC_CHARSET 186
#define RUSSIAN_CHARSET 204
#define THAI_CHARSET 222
#define EASTEUROPE_CHARSET 238
#define BI_RGB 0L
#define DIB_RGB_COLORS 0
HDC CreateCompatibleDC(HDC hdc);
BOOL DeleteDC(HDC hdc);
HBITMAP CreateDIBSection(HDC hdc, const BITMAPINFO* pbmi, UINT usage, void** ppvBits, HANDLE hSection, DWORD offset);
int SetDIBitsToDevice(HDC hdc, int xDest, int yDest, DWORD w, DWORD h, int xSrc, int ySrc, UINT StartScan,
UINT cLines, const void* lpvBits, const BITMAPINFO* lpbmi, UINT ColorUse);
HFONT CreateFontIndirect(const LOGFONT* lplf);
BOOL DeleteObject(HGDIOBJ ho);
HGDIOBJ SelectObject(HDC hdc, HGDIOBJ h);
COLORREF SetTextColor(HDC hdc, COLORREF color);
COLORREF SetBkColor(HDC hdc, COLORREF color);
int SetBkMode(HDC hdc, int mode);
BOOL GetTextExtentPoint32W(HDC hdc, LPCWSTR lpString, int c, LPSIZE psizl);
BOOL GetCharABCWidthsFloatW(HDC hdc, UINT iFirst, UINT iLast, LPABCFLOAT lpABC);
BOOL TextOutW(HDC hdc, int x, int y, LPCWSTR lpString, int c);
BOOL TextOutA(HDC hdc, int x, int y, LPCSTR lpString, int c);
#define TextOut TextOutA