488 lines
19 KiB
PowerShell
488 lines
19 KiB
PowerShell
<#
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.SYNOPSIS
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HDMI 源端测试工具 —— 枚举/切换输出分辨率 + 全屏测试图案
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.DESCRIPTION
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配合 LT8619C(HDMI 转 RGB888)→ DLPC3421 转接板调试使用。
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原理:电脑显卡通过 HDMI DDC 读取转接板 EDID 来枚举可用分辨率,
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本脚本调用 Win32 API 完成模式枚举与切换,再用 WinForms 全屏窗口
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输出测试图案。板载 EDID 只声明了 640x360@60(25.2MHz 像素时钟),
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插上 HDMI 后显卡应只能发这一个模式;-List 可直接验证 EDID 是否生效。
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测试图案用途:
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Bars 100% 彩条 —— 肉眼/示波器验证 RGB 通道顺序与极性
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GraySteps 16 级灰阶 —— 验证 RGB888 各 bit 连通性
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Gradient R/G/B 三段渐变 —— 验证每通道 8bit 线性度
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Checker 黑白棋盘格 —— 验证像素时钟 PCLK 与 DE 对位
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Grid 网格+中心十字 —— 验证像素映射/偏移/缩放
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Red/Green/Blue/White/Black/Gray50 纯色 —— 万用表/示波器测单通道电平
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全屏窗口操作:空格或→下一图案,←上一图案,ESC 退出。
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.EXAMPLE
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tools\hdmi_source.bat -List
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枚举所有活动显示器与显卡支持的分辨率(验证 EDID)
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.EXAMPLE
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tools\hdmi_source.bat -Monitor 1 -Mode 640x360
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把显示器 1 切到 640x360(缺省 60Hz,可写 640x360@60)
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.EXAMPLE
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tools\hdmi_source.bat -Mode 640x360 -Pattern -Restore
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切到 640x360 并全屏出图案,退出图案后恢复原分辨率
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.EXAMPLE
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tools\hdmi_source.bat -Pattern -PatternName Checker -Seconds 5
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当前分辨率下全屏棋盘格,5 秒后自动退出(自动化测试用)
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#>
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param(
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[switch]$List,
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[int]$Monitor = 1,
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[string]$Mode = '',
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[switch]$Pattern,
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[ValidateSet('', 'Bars', 'GraySteps', 'Gradient', 'Checker', 'Grid',
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'Red', 'Green', 'Blue', 'White', 'Black', 'Gray50')]
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[string]$PatternName = '',
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[int]$Seconds = 0,
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[switch]$Restore
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)
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$ErrorActionPreference = 'Stop'
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# ---------------- Win32 显示 API ----------------
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Add-Type -TypeDefinition @"
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using System;
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using System.Runtime.InteropServices;
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namespace HdmiSrc
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{
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
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public struct DISPLAY_DEVICE
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{
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public int cb;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string DeviceName;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string DeviceString;
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public int StateFlags;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string DeviceID;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 128)] public string DeviceKey;
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
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public struct DEVMODE
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{
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string dmDeviceName;
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public short dmSpecVersion;
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public short dmDriverVersion;
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public short dmSize;
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public short dmDriverExtra;
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public int dmFields;
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public int dmPositionX;
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public int dmPositionY;
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public int dmDisplayOrientation;
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public int dmDisplayFixedOutput;
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public short dmColor;
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public short dmDuplex;
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public short dmYResolution;
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public short dmTTOption;
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public short dmCollate;
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[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)] public string dmFormName;
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public short dmLogPixels;
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public int dmBitsPerPel;
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public int dmPelsWidth;
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public int dmPelsHeight;
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public int dmDisplayFlags;
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public int dmDisplayFrequency;
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public int dmICMMethod;
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public int dmICMIntent;
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public int dmMediaType;
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public int dmDitherType;
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public int dmReserved1;
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public int dmReserved2;
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public int dmPanningWidth;
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public int dmPanningHeight;
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}
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public static class Native
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{
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[DllImport("user32.dll", CharSet = CharSet.Ansi)]
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public static extern bool EnumDisplayDevices(string lpDevice, uint iDevNum,
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ref DISPLAY_DEVICE lpDisplayDevice, uint dwFlags);
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// PowerShell 会把 $null marshal 成空串而非 NULL,由 C# 侧保证传 NULL
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public static bool EnumDisplayAdapters(uint iDevNum, ref DISPLAY_DEVICE lpDisplayDevice)
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{
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return EnumDisplayDevices(null, iDevNum, ref lpDisplayDevice, 0);
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}
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[DllImport("user32.dll", CharSet = CharSet.Ansi)]
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public static extern bool EnumDisplaySettings(string lpszDeviceName, int iModeNum,
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ref DEVMODE lpDevMode);
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[DllImport("user32.dll", CharSet = CharSet.Ansi)]
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public static extern int ChangeDisplaySettingsEx(string lpszDeviceName,
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ref DEVMODE lpDevMode, IntPtr hwnd, int dwflags, IntPtr lParam);
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}
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}
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"@
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# 板载 EDID 声明的目标模式,-List 时用于自检
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$TargetW = 640
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$TargetH = 360
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function New-DevMode {
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$dm = New-Object HdmiSrc.DEVMODE
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$dm.dmDeviceName = ''
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$dm.dmFormName = ''
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$dm.dmSize = [System.Runtime.InteropServices.Marshal]::SizeOf($dm)
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return $dm
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}
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function New-DisplayDevice {
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$dd = New-Object HdmiSrc.DISPLAY_DEVICE
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$dd.DeviceName = ''
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$dd.DeviceString = ''
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$dd.DeviceID = ''
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$dd.DeviceKey = ''
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$dd.cb = [System.Runtime.InteropServices.Marshal]::SizeOf($dd)
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return $dd
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}
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# 枚举所有"已连接到桌面"的显示器(即插着 HDMI 的输出口)
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function Get-Displays {
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$list = @()
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$i = 0
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while ($true) {
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$dd = New-DisplayDevice
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if (-not [HdmiSrc.Native]::EnumDisplayAdapters($i, [ref]$dd)) { break }
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# StateFlags bit0 = ATTACHED_TO_DESKTOP
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if ($dd.StateFlags -band 0x1) {
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$mon = New-DisplayDevice
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[void][HdmiSrc.Native]::EnumDisplayDevices($dd.DeviceName, 0, [ref]$mon, 0)
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$list += [pscustomobject]@{
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Index = $list.Count + 1
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Device = $dd.DeviceName
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Adapter = $dd.DeviceString
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MonName = $mon.DeviceString
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}
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}
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$i++
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}
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return $list
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}
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# 显卡枚举到的全部显示模式(去重)
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function Get-Modes {
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param([string]$Device)
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$modes = @()
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$i = 0
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while ($true) {
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$dm = New-DevMode
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if (-not [HdmiSrc.Native]::EnumDisplaySettings($Device, $i, [ref]$dm)) { break }
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$modes += [pscustomobject]@{
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W = $dm.dmPelsWidth
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H = $dm.dmPelsHeight
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Hz = $dm.dmDisplayFrequency
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Bpp = $dm.dmBitsPerPel
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}
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$i++
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}
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return ($modes | Sort-Object W, H, Hz, Bpp -Unique)
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}
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function Get-CurrentDevMode {
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param([string]$Device)
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$dm = New-DevMode
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[void][HdmiSrc.Native]::EnumDisplaySettings($Device, -1, [ref]$dm) # ENUM_CURRENT_SETTINGS
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return $dm
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}
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# 应用一个 DEVMODE(先 CDS_TEST 再真正生效),返回 $true/$false
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function Set-DevMode {
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param([string]$Device, $dm)
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$dm.dmFields = 0x00040000 -bor 0x00080000 -bor 0x00100000 -bor 0x00400000
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# DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT | DM_DISPLAYFREQUENCY
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$rc = [HdmiSrc.Native]::ChangeDisplaySettingsEx($Device, [ref]$dm, [IntPtr]::Zero, 2, [IntPtr]::Zero)
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if ($rc -ne 0) {
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Write-Host (" 错误: 显卡拒绝该模式 (CDS_TEST 返回 {0})" -f $rc) -ForegroundColor Red
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return $false
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}
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$rc = [HdmiSrc.Native]::ChangeDisplaySettingsEx($Device, [ref]$dm, [IntPtr]::Zero, 0, [IntPtr]::Zero)
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if ($rc -ne 0) {
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Write-Host (" 错误: 模式应用失败 (返回 {0})" -f $rc) -ForegroundColor Red
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return $false
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}
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return $true
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}
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# 在显卡枚举的模式里找 W x H [@Hz] 并切换
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function Switch-Mode {
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param([string]$Device, [int]$W, [int]$H, [int]$Hz)
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$all = @(Get-Modes $Device)
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$hit = @($all | Where-Object { $_.W -eq $W -and $_.H -eq $H -and ($Hz -le 0 -or $_.Hz -eq $Hz) })
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if (-not $hit) {
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Write-Host (" 错误: 显卡未枚举到 {0}x{1} 模式" -f $W, $H) -ForegroundColor Red
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Write-Host " 可能原因:" -ForegroundColor Yellow
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Write-Host " 1. 转接板 EDID 未被读取(检查 HPD / DDC / LT8619C 供电)"
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Write-Host " 2. EDID 中未包含该分辨率(当前板载 EDID 只有 640x360@60)"
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Write-Host " 3. 显卡驱动拒收该 DTD(可用 CRU 手动添加自定义分辨率)"
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Write-Host " 先运行 -List 查看显卡实际枚举到了哪些模式。"
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return $false
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}
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$dm = New-DevMode
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$dm.dmPelsWidth = $W
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$dm.dmPelsHeight = $H
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$dm.dmDisplayFrequency = $hit[0].Hz
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$dm.dmBitsPerPel = 32
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$ok = Set-DevMode $Device $dm
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if ($ok) {
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Write-Host (" 已切换 {0} -> {1}x{2}@{3}" -f $Device, $W, $H, $hit[0].Hz) -ForegroundColor Green
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}
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return $ok
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}
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# ---------------- 全屏测试图案 ----------------
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function Show-PatternWindow {
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param(
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[string]$Device = '',
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[string]$StartPattern = '',
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[int]$AutoSeconds = 0
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)
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Add-Type -AssemblyName System.Windows.Forms
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Add-Type -AssemblyName System.Drawing
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# 窗口放到目标设备名对应的屏幕上(如 \\.\DISPLAY2),找不到则回退主屏
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$screen = [System.Windows.Forms.Screen]::AllScreens |
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Where-Object { $_.DeviceName -eq $Device } |
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Select-Object -First 1
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if (-not $screen) { $screen = [System.Windows.Forms.Screen]::PrimaryScreen }
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$script:patterns = @('Bars', 'GraySteps', 'Gradient', 'Checker', 'Grid',
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'Red', 'Green', 'Blue', 'White', 'Black', 'Gray50')
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$script:pi = 0
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if ($StartPattern) {
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$idx = [array]::IndexOf($script:patterns, $StartPattern)
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if ($idx -ge 0) { $script:pi = $idx }
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}
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$script:form = New-Object System.Windows.Forms.Form
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$script:form.FormBorderStyle = [System.Windows.Forms.FormBorderStyle]::None
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$script:form.StartPosition = [System.Windows.Forms.FormStartPosition]::Manual
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$script:form.Bounds = $screen.Bounds
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$script:form.TopMost = $true
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$script:form.KeyPreview = $true
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# 双缓冲避免棋盘格/网格闪烁
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$script:form.GetType().GetProperty('DoubleBuffered',
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[System.Reflection.BindingFlags]'Instance,NonPublic').SetValue($script:form, $true, $null)
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$osdFont = New-Object System.Drawing.Font('Consolas', 11)
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$paintHandler = {
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param($s, $e)
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$g = $e.Graphics
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$w = $e.ClipRectangle.Width
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$h = $e.ClipRectangle.Height
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$name = $script:patterns[$script:pi]
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switch ($name) {
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'Bars' {
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# 100% 饱和度竖彩条:白黄青绿品红红蓝黑
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$c = @(@(255,255,255), @(255,255,0), @(0,255,255), @(0,255,0),
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@(255,0,255), @(255,0,0), @(0,0,255), @(0,0,0))
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$n = $c.Count
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for ($k = 0; $k -lt $n; $k++) {
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$bw = [Math]::Ceiling($w / $n)
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$brush = New-Object System.Drawing.SolidBrush (
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[System.Drawing.Color]::FromArgb($c[$k][0], $c[$k][1], $c[$k][2]))
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$g.FillRectangle($brush, [int]($k * $bw), 0, [int]$bw + 1, $h)
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$brush.Dispose()
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}
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}
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'GraySteps' {
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# 16 级灰阶,验证 RGB888 各 bit
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$n = 16
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for ($k = 0; $k -lt $n; $k++) {
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$v = [int]($k * 255 / ($n - 1))
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$bw = [Math]::Ceiling($w / $n)
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$brush = New-Object System.Drawing.SolidBrush (
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[System.Drawing.Color]::FromArgb($v, $v, $v))
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$g.FillRectangle($brush, [int]($k * $bw), 0, [int]$bw + 1, $h)
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$brush.Dispose()
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}
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}
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'Gradient' {
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# R/G/B 三段水平渐变,验证每通道 8bit 线性度
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$seg = [Math]::Ceiling($w / 3.0)
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$rgbIdx = @(0, 1, 2)
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foreach ($ch in $rgbIdx) {
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for ($x = 0; $x -lt $seg; $x++) {
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$v = [int](255 * $x / [Math]::Max(1.0, ($seg - 1)))
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$r = 0; $gg = 0; $b = 0
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if ($ch -eq 0) { $r = $v } elseif ($ch -eq 1) { $gg = $v } else { $b = $v }
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$brush = New-Object System.Drawing.SolidBrush (
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[System.Drawing.Color]::FromArgb($r, $gg, $b))
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$g.FillRectangle($brush, [int]($ch * $seg + $x), 0, 1, $h)
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$brush.Dispose()
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}
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}
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}
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'Checker' {
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# 黑白棋盘格,验证 PCLK/DE 对位
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$g.FillRectangle([System.Drawing.Brushes]::Black, 0, 0, $w, $h)
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$cell = 16
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for ($y = 0; $y -lt $h; $y += $cell) {
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for ($x = 0; $x -lt $w; $x += $cell) {
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if ((([int]($x / $cell) + [int]($y / $cell)) % 2) -eq 0) {
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$g.FillRectangle([System.Drawing.Brushes]::White, $x, $y, $cell, $cell)
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}
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}
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}
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}
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'Grid' {
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# 黑底 + 40px 网格 + 中心十字 + 白色边框,验证像素映射
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$g.FillRectangle([System.Drawing.Brushes]::Black, 0, 0, $w, $h)
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$pen = New-Object System.Drawing.Pen ([System.Drawing.Color]::FromArgb(0, 128, 0), 1)
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for ($x = 40; $x -lt $w; $x += 40) { $g.DrawLine($pen, $x, 0, $x, $h) }
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for ($y = 40; $y -lt $h; $y += 40) { $g.DrawLine($pen, 0, $y, $w, $y) }
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$pen.Dispose()
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$wp = New-Object System.Drawing.Pen ([System.Drawing.Color]::White, 2)
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$cx = [int]($w / 2); $cy = [int]($h / 2)
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$g.DrawLine($wp, $cx, 0, $cx, $h)
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$g.DrawLine($wp, 0, $cy, $w, $cy)
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$g.DrawRectangle($wp, 1, 1, $w - 3, $h - 3)
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$wp.Dispose()
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}
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'Red' { $g.FillRectangle([System.Drawing.Brushes]::Red, 0, 0, $w, $h) }
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'Green' { $g.FillRectangle([System.Drawing.Brushes]::Green, 0, 0, $w, $h) }
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'Blue' { $g.FillRectangle([System.Drawing.Brushes]::Blue, 0, 0, $w, $h) }
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'White' { $g.FillRectangle([System.Drawing.Brushes]::White, 0, 0, $w, $h) }
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'Black' { $g.FillRectangle([System.Drawing.Brushes]::Black, 0, 0, $w, $h) }
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'Gray50' {
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$brush = New-Object System.Drawing.SolidBrush (
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[System.Drawing.Color]::FromArgb(128, 128, 128))
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$g.FillRectangle($brush, 0, 0, $w, $h)
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$brush.Dispose()
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}
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}
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# 左上角 OSD:图案名 + 分辨率 + 按键提示
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$text = "[{0}] {1}x{2} 空格/→:下一图案 ←:上一图案 ESC:退出" -f $name, $w, $h
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$sz = $g.MeasureString($text, $osdFont)
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$bg = New-Object System.Drawing.SolidBrush ([System.Drawing.Color]::FromArgb(150, 0, 0, 0))
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$g.FillRectangle($bg, 6, 6, $sz.Width + 12, $sz.Height + 8)
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$bg.Dispose()
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$g.DrawString($text, $osdFont, [System.Drawing.Brushes]::White, 12, 10)
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}
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$script:form.Add_Paint($paintHandler)
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$script:form.Add_KeyDown({
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param($s, $e)
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switch ($e.KeyCode) {
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'Escape' { $s.Close() }
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'Space' { $script:pi = ($script:pi + 1) % $script:patterns.Count; $s.Invalidate() }
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'Right' { $script:pi = ($script:pi + 1) % $script:patterns.Count; $s.Invalidate() }
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'Left' { $script:pi = ($script:pi - 1 + $script:patterns.Count) % $script:patterns.Count; $s.Invalidate() }
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}
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})
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$script:form.Add_Activated({ [System.Windows.Forms.Cursor]::Hide() })
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$script:form.Add_FormClosed({ [System.Windows.Forms.Cursor]::Show() })
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if ($AutoSeconds -gt 0) {
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$timer = New-Object System.Windows.Forms.Timer
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$timer.Interval = $AutoSeconds * 1000
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$timer.Add_Tick({ $script:form.Close() })
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$timer.Start()
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}
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Write-Host ("全屏图案已启动于 {0} ({1}x{2})" -f $screen.DeviceName, $screen.Bounds.Width, $screen.Bounds.Height)
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Write-Host "空格/→:下一图案 ←:上一图案 ESC:退出"
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[void]$script:form.ShowDialog()
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}
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|
|
|
function Show-Usage {
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|
Write-Host @"
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|
用法:
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|
hdmi_source.bat -List 枚举显示器与可用分辨率(验证 EDID)
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hdmi_source.bat -Monitor <n> -Mode <WxH[@Hz]> 切换分辨率, 如 -Mode 640x360 或 640x360@60
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hdmi_source.bat [-Monitor <n>] -Pattern [-PatternName <名>] [-Seconds <n>]
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全屏测试图案(Bar/GraySteps/Gradient/Checker/Grid/纯色)
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|
可选: -Restore 退出图案窗口后恢复切换前的分辨率
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-Seconds <n> 图案 n 秒后自动退出(自动化测试)
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|
|
|
典型调试流程:
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1. HDMI 插上转接板 -> -List 确认出现 640x360(EDID 生效)
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2. -Mode 640x360 -Pattern -> 全屏图案, 逐项验证 RGB 通道/位序/像素映射
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|
"@
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|
}
|
|
|
|
# ---------------- 主流程 ----------------
|
|
$displays = @(Get-Displays) # @() 保证单显示器时不退化为标量
|
|
if ($displays.Count -eq 0) {
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|
Write-Host "错误: 未找到活动显示器" -ForegroundColor Red
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|
exit 1
|
|
}
|
|
|
|
if ($List) {
|
|
foreach ($d in $displays) {
|
|
Write-Host ""
|
|
Write-Host ("== 显示器 {0} {1} 显卡[{2}] 监视器[{3}]" -f $d.Index, $d.Device, $d.Adapter, $d.MonName) -ForegroundColor Cyan
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|
$cur = Get-CurrentDevMode $d.Device
|
|
Write-Host (" 当前模式: {0}x{1}@{2} {3}bpp" -f $cur.dmPelsWidth, $cur.dmPelsHeight, $cur.dmDisplayFrequency, $cur.dmBitsPerPel)
|
|
$modes = Get-Modes $d.Device
|
|
$modes | Format-Table W, H, Hz, Bpp -AutoSize
|
|
$hasTarget = $modes | Where-Object { $_.W -eq $TargetW -and $_.H -eq $TargetH }
|
|
if ($hasTarget) {
|
|
Write-Host (" [OK] 找到板载 EDID 目标模式 {0}x{1} -> EDID 已被显卡读取" -f $TargetW, $TargetH) -ForegroundColor Green
|
|
} else {
|
|
Write-Host (" [--] 未找到 {0}x{1} (若此口接的是转接板, 说明 EDID/HPD 未生效)" -f $TargetW, $TargetH) -ForegroundColor Yellow
|
|
}
|
|
}
|
|
exit 0
|
|
}
|
|
|
|
if (-not $Mode -and -not $Pattern) {
|
|
Show-Usage
|
|
exit 0
|
|
}
|
|
|
|
if ($Monitor -gt $displays.Count) {
|
|
Write-Host ("错误: -Monitor 超出范围(共 {0} 个活动显示器, 运行 -List 查看)" -f $displays.Count) -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
$disp = $displays[$Monitor - 1]
|
|
Write-Host ("目标: 显示器 {0} = {1}" -f $disp.Index, $disp.Device)
|
|
|
|
$prevMode = $null
|
|
if ($Mode) {
|
|
if ($Mode -notmatch '^\s*(\d+)\s*[xX]\s*(\d+)\s*(?:@\s*(\d+)\s*)?$') {
|
|
Write-Host "错误: -Mode 格式应为 WxH 或 WxH@Hz, 例如 640x360 或 640x360@60" -ForegroundColor Red
|
|
exit 1
|
|
}
|
|
$w = [int]$Matches[1]; $h = [int]$Matches[2]
|
|
$hz = 0
|
|
if ($Matches[3]) { $hz = [int]$Matches[3] }
|
|
|
|
$prevMode = Get-CurrentDevMode $disp.Device
|
|
$ok = Switch-Mode $disp.Device $w $h $hz
|
|
if (-not $ok) { exit 1 }
|
|
Start-Sleep -Milliseconds 300 # 等显卡/显示器完成模式切换
|
|
}
|
|
|
|
if ($Pattern) {
|
|
if ($Restore -and -not $prevMode) {
|
|
Write-Host "提示: -Restore 仅在与 -Mode 同用时生效" -ForegroundColor Yellow
|
|
}
|
|
try {
|
|
Show-PatternWindow -Device $disp.Device -StartPattern $PatternName -AutoSeconds $Seconds
|
|
}
|
|
finally {
|
|
if ($Restore -and $prevMode) {
|
|
Write-Host ("恢复原分辨率 {0}x{1}@{2} ..." -f $prevMode.dmPelsWidth, $prevMode.dmPelsHeight, $prevMode.dmDisplayFrequency)
|
|
[void](Set-DevMode $disp.Device $prevMode)
|
|
}
|
|
}
|
|
}
|