Init: Migrate SimpleRemoter (Since v1.3.1) to Gitea
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yuanyuanxiang
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client/CursorInfo.h
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202
client/CursorInfo.h
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// CursorInfor.h: interface for the CCursorInfor class.
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//
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//////////////////////////////////////////////////////////////////////
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#if !defined(AFX_CURSORINFOR_H__ABC3705B_9461_4A94_B825_26539717C0D6__INCLUDED_)
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#define AFX_CURSORINFOR_H__ABC3705B_9461_4A94_B825_26539717C0D6__INCLUDED_
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#if _MSC_VER > 1000
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#pragma once
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#endif // _MSC_VER > 1000
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// ScreenType enum (USING_GDI, USING_DXGI, USING_VIRTUAL) 已移至 common/commands.h
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#define ALGORITHM_GRAY 0
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#define ALGORITHM_DIFF 1
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#define ALGORITHM_DEFAULT 1
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#define ALGORITHM_H264 2
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#define ALGORITHM_HOME 3
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#define ALGORITHM_RGB565 3
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#define MAX_CURSOR_TYPE 16
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#define MAX_CURSOR_SIZE 64 // 最大光标尺寸
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#define CURSOR_THROTTLE_MS 50 // 光标发送节流间隔 (ms)
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#define CURSOR_INDEX_CUSTOM 254 // -2: 使用自定义光标
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#define CURSOR_INDEX_UNSUPPORTED 255 // -1: 不支持的光标
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// 自定义光标位图信息
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struct CursorBitmapInfo {
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WORD hotspotX;
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WORD hotspotY;
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BYTE width;
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BYTE height;
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DWORD hash;
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BYTE bgraData[MAX_CURSOR_SIZE * MAX_CURSOR_SIZE * 4]; // 最大 16KB
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DWORD dataSize;
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};
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class CCursorInfo
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{
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private:
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LPCTSTR m_CursorResArray[MAX_CURSOR_TYPE];
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HCURSOR m_CursorHandleArray[MAX_CURSOR_TYPE];
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public:
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CCursorInfo()
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{
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LPCTSTR CursorResArray[MAX_CURSOR_TYPE] = {
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IDC_APPSTARTING,
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IDC_ARROW,
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IDC_CROSS,
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IDC_HAND,
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IDC_HELP,
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IDC_IBEAM,
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IDC_ICON,
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IDC_NO,
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IDC_SIZE,
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IDC_SIZEALL,
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IDC_SIZENESW,
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IDC_SIZENS,
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IDC_SIZENWSE,
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IDC_SIZEWE,
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IDC_UPARROW,
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IDC_WAIT
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};
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for (int i = 0; i < MAX_CURSOR_TYPE; ++i) {
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m_CursorResArray[i] = CursorResArray[i];
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m_CursorHandleArray[i] = LoadCursor(NULL, CursorResArray[i]);
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}
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}
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int getCurrentCursorIndex() const
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{
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CURSORINFO ci;
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ci.cbSize = sizeof(CURSORINFO);
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if (!GetCursorInfo(&ci) || ci.flags != CURSOR_SHOWING)
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return -1;
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int i;
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for (i = 0; i < MAX_CURSOR_TYPE; ++i) {
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if (ci.hCursor == m_CursorHandleArray[i])
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break;
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}
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int nIndex = i == MAX_CURSOR_TYPE ? -1 : i;
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return nIndex;
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}
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HCURSOR getCursorHandle( int nIndex ) const
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{
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return (nIndex >= 0 && nIndex < MAX_CURSOR_TYPE) ? m_CursorHandleArray[nIndex] : NULL;
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}
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// 获取当前光标的位图信息（用于自定义光标）
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bool getCurrentCursorBitmap(CursorBitmapInfo* info) const
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{
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if (!info) return false;
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CURSORINFO ci = { sizeof(CURSORINFO) };
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if (!GetCursorInfo(&ci) || ci.flags != CURSOR_SHOWING)
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return false;
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ICONINFO iconInfo;
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if (!GetIconInfo(ci.hCursor, &iconInfo))
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return false;
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// 获取位图信息
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BITMAP bm = { 0 };
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HBITMAP hBmp = iconInfo.hbmColor ? iconInfo.hbmColor : iconInfo.hbmMask;
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if (!GetObject(hBmp, sizeof(BITMAP), &bm)) {
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if (iconInfo.hbmColor) DeleteObject(iconInfo.hbmColor);
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if (iconInfo.hbmMask) DeleteObject(iconInfo.hbmMask);
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return false;
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}
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// 限制尺寸
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int width = min((int)bm.bmWidth, MAX_CURSOR_SIZE);
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int height = min((int)bm.bmHeight, MAX_CURSOR_SIZE);
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// 如果是掩码位图（无彩色），高度是实际的两倍
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if (!iconInfo.hbmColor && bm.bmHeight > bm.bmWidth) {
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height = min((int)bm.bmWidth, MAX_CURSOR_SIZE);
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}
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info->hotspotX = (WORD)iconInfo.xHotspot;
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info->hotspotY = (WORD)iconInfo.yHotspot;
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info->width = (BYTE)width;
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info->height = (BYTE)height;
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info->dataSize = width * height * 4;
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// 创建兼容 DC 和位图来获取 BGRA 数据
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HDC hScreenDC = GetDC(NULL);
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if (!hScreenDC) {
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if (iconInfo.hbmColor) DeleteObject(iconInfo.hbmColor);
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if (iconInfo.hbmMask) DeleteObject(iconInfo.hbmMask);
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return false;
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}
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HDC hMemDC = CreateCompatibleDC(hScreenDC);
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if (!hMemDC) {
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ReleaseDC(NULL, hScreenDC);
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if (iconInfo.hbmColor) DeleteObject(iconInfo.hbmColor);
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if (iconInfo.hbmMask) DeleteObject(iconInfo.hbmMask);
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return false;
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}
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BITMAPINFO bmi = { 0 };
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bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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bmi.bmiHeader.biWidth = width;
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bmi.bmiHeader.biHeight = -height; // 负数表示从上到下
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bmi.bmiHeader.biPlanes = 1;
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bmi.bmiHeader.biBitCount = 32;
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bmi.bmiHeader.biCompression = BI_RGB;
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void* pBits = NULL;
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HBITMAP hDibBmp = CreateDIBSection(hScreenDC, &bmi, DIB_RGB_COLORS, &pBits, NULL, 0);
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bool success = false;
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if (hDibBmp && pBits) {
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HBITMAP hOldBmp = (HBITMAP)SelectObject(hMemDC, hDibBmp);
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// 绘制光标到位图
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DrawIconEx(hMemDC, 0, 0, ci.hCursor, width, height, 0, NULL, DI_NORMAL);
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// 复制数据
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memcpy(info->bgraData, pBits, info->dataSize);
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success = true;
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SelectObject(hMemDC, hOldBmp);
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DeleteObject(hDibBmp);
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}
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DeleteDC(hMemDC);
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ReleaseDC(NULL, hScreenDC);
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// 清理
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if (iconInfo.hbmColor) DeleteObject(iconInfo.hbmColor);
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if (iconInfo.hbmMask) DeleteObject(iconInfo.hbmMask);
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if (!success) return false;
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// 计算哈希
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info->hash = calculateBitmapHash(info->bgraData, info->dataSize);
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return true;
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}
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// FNV-1a 哈希算法（采样加速）
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static DWORD calculateBitmapHash(const BYTE* data, DWORD size)
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{
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DWORD hash = 2166136261; // FNV offset basis
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// 每 16 字节采样一次，加速计算
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for (DWORD i = 0; i < size; i += 16) {
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hash ^= data[i];
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hash *= 16777619; // FNV prime
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}
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return hash;
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}
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};
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#endif // !defined(AFX_CURSORINFOR_H__ABC3705B_9461_4A94_B825_26539717C0D6__INCLUDED_)
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