mirror of
https://github.com/Blinue/Magpie.git
synced 2026-06-24 02:04:10 +00:00
500 lines
15 KiB
C++
500 lines
15 KiB
C++
#include "pch.h"
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#include "CursorRenderer.h"
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#include "App.h"
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#include "Utils.h"
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#include "shaders/MonochromeCursorPS.h"
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#include <VertexTypes.h>
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extern std::shared_ptr<spdlog::logger> logger;
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bool CursorRenderer::Initialize(ComPtr<ID3D11Texture2D> renderTarget, SIZE outputSize) {
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App& app = App::GetInstance();
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Renderer& renderer = app.GetRenderer();
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_d3dDC = renderer.GetD3DDC();
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_d3dDevice = renderer.GetD3DDevice();
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HRESULT hr = renderer.GetRenderTargetView(renderTarget.Get(), &_rtv);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("GetRenderTargetView 失败", hr));
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return false;
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}
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hr = renderer.GetShaderResourceView(renderTarget.Get(), &_renderTargetSrv);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("GetShaderResourceView 失败", hr));
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return false;
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}
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hr = renderer.GetD3DDevice()->CreatePixelShader(
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MonochromeCursorPSShaderByteCode, sizeof(MonochromeCursorPSShaderByteCode), nullptr, &_monoCursorPS);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("创建 MonochromeCursorPS 失败", hr));
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return false;
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}
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D3D11_BUFFER_DESC bd = {};
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bd.Usage = D3D11_USAGE_DYNAMIC;
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bd.ByteWidth = sizeof(VertexPositionTexture) * 4;
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bd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
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bd.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
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hr = renderer.GetD3DDevice()->CreateBuffer(&bd, nullptr, &_vtxBuffer);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("创建顶点缓冲区失败", hr));
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return false;
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}
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if (!renderer.GetSampler(Renderer::FilterType::LINEAR, &_linearSam)
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|| !renderer.GetSampler(Renderer::FilterType::POINT, &_pointSam)
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) {
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SPDLOG_LOGGER_ERROR(logger, "GetSampler 失败");
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return false;
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}
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_monoCursorSize = { GetSystemMetrics(SM_CXCURSOR), GetSystemMetrics(SM_CYCURSOR) };
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D3D11_TEXTURE2D_DESC desc{};
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desc.Width = _monoCursorSize.cx;
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desc.Height = _monoCursorSize.cy;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.SampleDesc.Quality = 0;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;
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desc.Usage = D3D11_USAGE_DEFAULT;
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hr = _d3dDevice->CreateTexture2D(&desc, nullptr, &_monoTmpTexture);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("创建 Texture2D 失败", hr));
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return false;
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}
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hr = renderer.GetRenderTargetView(_monoTmpTexture.Get(), &_monoTmpRtv);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("GetRenderTargetView 失败", hr));
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return false;
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}
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hr = renderer.GetShaderResourceView(_monoTmpTexture.Get(), &_monoTmpSrv);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("GetShaderResourceView 失败", hr));
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return false;
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}
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D3D11_TEXTURE2D_DESC rtDesc;
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renderTarget->GetDesc(&rtDesc);
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_renderTargetSize = { (long)rtDesc.Width, (long)rtDesc.Height };
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_destRect.left = (rtDesc.Width - outputSize.cx) / 2;
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_destRect.right = _destRect.left + outputSize.cx;
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_destRect.top = (rtDesc.Height - outputSize.cy) / 2;
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_destRect.bottom = _destRect.top + outputSize.cy;
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const RECT& srcClient = app.GetSrcClientRect();
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SIZE srcSize = { srcClient.right - srcClient.left, srcClient.bottom - srcClient.top };
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_scaleX = float(_destRect.right - _destRect.left) / srcSize.cx;
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_scaleY = float(_destRect.bottom - _destRect.top) / srcSize.cy;
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SPDLOG_LOGGER_INFO(logger, fmt::format("scaleX：{}，scaleY：{}", _scaleX, _scaleY));
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// 限制鼠标在窗口内
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if (!ClipCursor(&App::GetInstance().GetSrcClientRect())) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("ClipCursor 失败"));
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}
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if (App::GetInstance().IsAdjustCursorSpeed()) {
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// 设置鼠标移动速度
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if (SystemParametersInfo(SPI_GETMOUSESPEED, 0, &_cursorSpeed, 0)) {
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long newSpeed = std::clamp(lroundf(_cursorSpeed / (_scaleX + _scaleY) * 2), 1L, 20L);
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if (!SystemParametersInfo(SPI_SETMOUSESPEED, 0, (PVOID)(intptr_t)newSpeed, 0)) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("设置光标移速失败"));
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}
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} else {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("获取光标移速失败"));
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}
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SPDLOG_LOGGER_INFO(logger, "已调整光标移速");
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}
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if (!MagShowSystemCursor(FALSE)) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("MagShowSystemCursor 失败"));
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}
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SPDLOG_LOGGER_INFO(logger, "CursorRenderer 初始化完成");
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return true;
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}
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CursorRenderer::~CursorRenderer() {
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ClipCursor(nullptr);
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if (App::GetInstance().IsAdjustCursorSpeed()) {
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SystemParametersInfo(SPI_SETMOUSESPEED, 0, (PVOID)(intptr_t)_cursorSpeed, 0);
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}
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MagShowSystemCursor(TRUE);
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SPDLOG_LOGGER_INFO(logger, "CursorRenderer 已析构");
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}
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bool GetHBmpBits32(HBITMAP hBmp, int& width, int& height, std::vector<BYTE>& pixels) {
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BITMAP bmp{};
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if (!GetObject(hBmp, sizeof(bmp), &bmp)) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("GetObject 失败"));
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return false;
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}
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width = bmp.bmWidth;
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height = bmp.bmHeight;
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BITMAPINFO bi{};
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bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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bi.bmiHeader.biWidth = width;
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bi.bmiHeader.biHeight = -height;
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bi.bmiHeader.biPlanes = 1;
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bi.bmiHeader.biCompression = BI_RGB;
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bi.bmiHeader.biBitCount = 32;
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bi.bmiHeader.biSizeImage = width * height * 4;
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pixels.resize(bi.bmiHeader.biSizeImage);
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HDC hdc = GetDC(NULL);
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if (GetDIBits(hdc, hBmp, 0, height, &pixels[0], &bi, DIB_RGB_COLORS) != height) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("GetDIBits 失败"));
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ReleaseDC(NULL, hdc);
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return false;
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}
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ReleaseDC(NULL, hdc);
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return true;
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}
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bool CursorRenderer::_ResolveCursor(HCURSOR hCursor, _CursorInfo& result) const {
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assert(hCursor != NULL);
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ICONINFO ii{};
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if (!GetIconInfo(hCursor, &ii)) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("GetIconInfo 失败"));
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return false;
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}
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result.xHotSpot = ii.xHotspot;
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result.yHotSpot = ii.yHotspot;
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auto clear = [&ii]() {
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if (ii.hbmColor) {
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DeleteBitmap(ii.hbmColor);
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}
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DeleteBitmap(ii.hbmMask);
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};
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ComPtr<ID3D11Texture2D> texture;
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if(ii.hbmColor == NULL) {
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// 单色光标
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BITMAP bmp{};
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if (!GetObject(ii.hbmMask, sizeof(bmp), &bmp)) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("GetObject 失败"));
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clear();
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return false;
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}
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result.width = bmp.bmWidth;
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result.height = bmp.bmHeight;
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BITMAPINFO bi{};
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bi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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bi.bmiHeader.biWidth = result.width;
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bi.bmiHeader.biHeight = -(LONG)result.height;
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bi.bmiHeader.biPlanes = 1;
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bi.bmiHeader.biCompression = BI_RGB;
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bi.bmiHeader.biBitCount = 32;
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bi.bmiHeader.biSizeImage = result.width * result.height * 4;
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std::vector<BYTE> pixels(bi.bmiHeader.biSizeImage);
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HDC hdc = GetDC(NULL);
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if (GetDIBits(hdc, ii.hbmMask, 0, result.height, &pixels[0], &bi, DIB_RGB_COLORS) != result.height) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("GetDIBits 失败"));
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ReleaseDC(NULL, hdc);
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clear();
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return false;
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}
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ReleaseDC(NULL, hdc);
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// 红色通道是 AND 掩码，绿色通道是 XOR 掩码
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const int halfSize = bi.bmiHeader.biSizeImage / 8;
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BYTE* upPtr = &pixels[1];
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BYTE* downPtr = &pixels[static_cast<size_t>(halfSize) * 4];
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for (int i = 0; i < halfSize; ++i) {
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*upPtr = *downPtr;
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// 判断光标是否存在反色部分
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if (!result.hasInv && *(upPtr - 1) == 255 && *upPtr == 255) {
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result.hasInv = true;
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}
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upPtr += 4;
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downPtr += 4;
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}
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if (result.hasInv) {
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SPDLOG_LOGGER_INFO(logger, "此光标含反色部分");
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result.height /= 2;
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if (result.width != _monoCursorSize.cx || result.height != _monoCursorSize.cy) {
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SPDLOG_LOGGER_ERROR(logger, "单色光标的尺寸不合法");
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return false;
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}
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D3D11_TEXTURE2D_DESC desc{};
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desc.Width = result.width;
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desc.Height = result.height;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.SampleDesc.Quality = 0;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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desc.Usage = D3D11_USAGE_DEFAULT;
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D3D11_SUBRESOURCE_DATA initData{};
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initData.pSysMem = &pixels[0];
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initData.SysMemPitch = result.width * 4;
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HRESULT hr = _d3dDevice->CreateTexture2D(&desc, &initData, &texture);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("创建 Texture2D 失败", hr));
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return false;
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}
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}
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}
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clear();
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if(!result.hasInv) {
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// 光标无反色部分，使用 WIC 将光标转换为带 Alpha 通道的图像
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ComPtr<IWICImagingFactory2> wicFactory = App::GetInstance().GetWICImageFactory();
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if (!wicFactory) {
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SPDLOG_LOGGER_ERROR(logger, "获取 WICImageFactory 失败");
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return false;
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}
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ComPtr<IWICBitmap> wicBitmap;
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HRESULT hr = wicFactory->CreateBitmapFromHICON(hCursor, &wicBitmap);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("CreateBitmapFromHICON 失败", hr));
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return false;
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}
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hr = wicBitmap->GetSize(&result.width, &result.height);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("GetSize 失败", hr));
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return false;
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}
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std::vector<BYTE> pixels(result.width * result.height * 4);
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hr = wicBitmap->CopyPixels(nullptr, result.width * 4, (UINT)pixels.size(), pixels.data());
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("CopyPixels 失败", hr));
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return false;
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}
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D3D11_TEXTURE2D_DESC desc{};
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desc.Width = result.width;
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desc.Height = result.height;
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desc.MipLevels = 1;
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desc.ArraySize = 1;
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desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
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desc.SampleDesc.Count = 1;
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desc.SampleDesc.Quality = 0;
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desc.BindFlags = D3D11_BIND_SHADER_RESOURCE;
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desc.Usage = D3D11_USAGE_IMMUTABLE;
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D3D11_SUBRESOURCE_DATA initData{};
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initData.pSysMem = &pixels[0];
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initData.SysMemPitch = result.width * 4;
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hr = _d3dDevice->CreateTexture2D(&desc, &initData, &texture);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("创建 Texture2D 失败", hr));
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return false;
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}
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}
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HRESULT hr = _d3dDevice->CreateShaderResourceView(texture.Get(), nullptr, &result.texture);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("创建 ShaderResourceView 失败", hr));
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return false;
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}
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return true;
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}
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void CursorRenderer::Draw() {
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CURSORINFO ci{};
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ci.cbSize = sizeof(ci);
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if (!GetCursorInfo(&ci)) {
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SPDLOG_LOGGER_ERROR(logger, MakeWin32ErrorMsg("GetCursorInfo 失败"));
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return;
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}
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if (!ci.hCursor || ci.flags != CURSOR_SHOWING) {
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return;
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}
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_CursorInfo* info = nullptr;
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auto it = _cursorMap.find(ci.hCursor);
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if (it != _cursorMap.end()) {
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info = &it->second;
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} else {
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// 未在映射中找到，创建新映射
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_CursorInfo t;
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if (_ResolveCursor(ci.hCursor, t)) {
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info = &_cursorMap[ci.hCursor];
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*info = t;
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SPDLOG_LOGGER_INFO(logger, fmt::format("已解析光标：{}", (void*)ci.hCursor));
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} else {
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SPDLOG_LOGGER_ERROR(logger, "解析光标失败");
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return;
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}
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}
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// 映射坐标
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const RECT& srcClient = App::GetInstance().GetSrcClientRect();
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POINT targetScreenPos = {
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lroundf((ci.ptScreenPos.x - srcClient.left) * _scaleX) - info->xHotSpot,
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lroundf((ci.ptScreenPos.y - srcClient.top) * _scaleY) - info->yHotSpot
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};
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RECT cursorRect{
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targetScreenPos.x + _destRect.left,
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targetScreenPos.y + _destRect.top,
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targetScreenPos.x + (LONG)info->width + _destRect.left,
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targetScreenPos.y + (LONG)info->height + _destRect.top
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};
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if (cursorRect.right <= _destRect.left || cursorRect.bottom <= _destRect.top
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|| cursorRect.left >= _destRect.right || cursorRect.top >= _destRect.bottom
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) {
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// 光标在窗口外
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return;
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}
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float left = targetScreenPos.x / FLOAT(_destRect.right - _destRect.left) * 2 - 1.0f;
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float top = 1.0f - targetScreenPos.y / FLOAT(_destRect.bottom - _destRect.top) * 2;
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float right = left + info->width / FLOAT(_destRect.right - _destRect.left) * 2;
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float bottom = top - info->height / FLOAT(_destRect.bottom - _destRect.top) * 2;
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Renderer& renderer = App::GetInstance().GetRenderer();
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renderer.SetSimpleVS(_vtxBuffer.Get());
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if (!info->hasInv) {
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_d3dDC->OMSetRenderTargets(1, &_rtv, nullptr);
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D3D11_VIEWPORT vp{
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(FLOAT)_destRect.left,
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(FLOAT)_destRect.top,
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FLOAT(_destRect.right - _destRect.left),
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FLOAT(_destRect.bottom - _destRect.top),
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0.0f,
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1.0f
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};
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_d3dDC->RSSetViewports(1, &vp);
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D3D11_MAPPED_SUBRESOURCE ms;
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HRESULT hr = _d3dDC->Map(_vtxBuffer.Get(), 0, D3D11_MAP_WRITE_DISCARD, 0, &ms);
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if (FAILED(hr)) {
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SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("Map 失败", hr));
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return;
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}
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VertexPositionTexture* data = (VertexPositionTexture*)ms.pData;
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data[0] = { XMFLOAT3(left, top, 0.5f), XMFLOAT2(0.0f, 0.0f) };
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data[1] = { XMFLOAT3(right, top, 0.5f), XMFLOAT2(1.0f, 0.0f) };
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data[2] = { XMFLOAT3(left, bottom, 0.5f), XMFLOAT2(0.0f, 1.0f) };
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data[3] = { XMFLOAT3(right, bottom, 0.5f), XMFLOAT2(1.0f, 1.0f) };
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_d3dDC->Unmap(_vtxBuffer.Get(), 0);
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if (!renderer.SetCopyPS(_pointSam, info->texture.Get())) {
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SPDLOG_LOGGER_ERROR(logger, "SetCopyPS 失败");
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return;
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}
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if (!renderer.SetAlphaBlend(true)) {
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SPDLOG_LOGGER_ERROR(logger, "SetAlphaBlend 失败");
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return;
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}
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_d3dDC->Draw(4, 0);
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if (!renderer.SetAlphaBlend(false)) {
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SPDLOG_LOGGER_ERROR(logger, "SetAlphaBlend 失败");
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return;
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}
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} else {
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// 绘制带有反色部分的光标，首先将光标覆盖的纹理复制到 _monoTmpTexture 中
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// 不知为何 CopySubresourceRegion 会大幅增加 GPU 占用
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_d3dDC->OMSetRenderTargets(1, &_monoTmpRtv, nullptr);
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D3D11_VIEWPORT vp{};
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vp.Width = (FLOAT)info->width;
|
||
vp.Height = (FLOAT)info->height;
|
||
vp.MaxDepth = 1.0f;
|
||
_d3dDC->RSSetViewports(1, &vp);
|
||
|
||
D3D11_MAPPED_SUBRESOURCE ms;
|
||
HRESULT hr = _d3dDC->Map(_vtxBuffer.Get(), 0, D3D11_MAP_WRITE_DISCARD, 0, &ms);
|
||
if (FAILED(hr)) {
|
||
SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("Map 失败", hr));
|
||
return;
|
||
}
|
||
|
||
VertexPositionTexture* data = (VertexPositionTexture*)ms.pData;
|
||
float leftPos = (float)cursorRect.left / _renderTargetSize.cx;
|
||
float rightPos = (float)cursorRect.right / _renderTargetSize.cx;
|
||
float topPos = (float)cursorRect.top / _renderTargetSize.cy;
|
||
float bottomPos = (float)cursorRect.bottom / _renderTargetSize.cy;
|
||
data[0] = { XMFLOAT3(-1, 1, 0.5f), XMFLOAT2(leftPos, topPos) };
|
||
data[1] = { XMFLOAT3(1, 1, 0.5f), XMFLOAT2(rightPos, topPos) };
|
||
data[2] = { XMFLOAT3(-1, -1, 0.5f), XMFLOAT2(leftPos, bottomPos) };
|
||
data[3] = { XMFLOAT3(1, -1, 0.5f), XMFLOAT2(rightPos, bottomPos) };
|
||
|
||
_d3dDC->Unmap(_vtxBuffer.Get(), 0);
|
||
|
||
if (!renderer.SetCopyPS(_pointSam, _renderTargetSrv)) {
|
||
SPDLOG_LOGGER_ERROR(logger, "SetCopyPS 失败");
|
||
return;
|
||
}
|
||
_d3dDC->Draw(4, 0);
|
||
|
||
// 绘制光标
|
||
hr = _d3dDC->Map(_vtxBuffer.Get(), 0, D3D11_MAP_WRITE_DISCARD, 0, &ms);
|
||
if (FAILED(hr)) {
|
||
SPDLOG_LOGGER_ERROR(logger, MakeComErrorMsg("Map 失败", hr));
|
||
return;
|
||
}
|
||
|
||
data = (VertexPositionTexture*)ms.pData;
|
||
data[0] = { XMFLOAT3(left, top, 0.5f), XMFLOAT2(0.0f, 0.0f) };
|
||
data[1] = { XMFLOAT3(right, top, 0.5f), XMFLOAT2(1.0f, 0.0f) };
|
||
data[2] = { XMFLOAT3(left, bottom, 0.5f), XMFLOAT2(0.0f, 1.0f) };
|
||
data[3] = { XMFLOAT3(right, bottom, 0.5f), XMFLOAT2(1.0f, 1.0f) };
|
||
|
||
_d3dDC->Unmap(_vtxBuffer.Get(), 0);
|
||
|
||
_d3dDC->PSSetShader(_monoCursorPS.Get(), nullptr, 0);
|
||
_d3dDC->PSSetConstantBuffers(0, 0, nullptr);
|
||
_d3dDC->OMSetRenderTargets(0, nullptr, nullptr);
|
||
ID3D11ShaderResourceView* srv[2] = { _monoTmpSrv, info->texture.Get() };
|
||
_d3dDC->PSSetShaderResources(0, 2, srv);
|
||
_d3dDC->PSSetSamplers(0, 1, &_pointSam);
|
||
|
||
_d3dDC->OMSetRenderTargets(1, &_rtv, nullptr);
|
||
vp.TopLeftX = (FLOAT)_destRect.left;
|
||
vp.TopLeftY = (FLOAT)_destRect.top;
|
||
vp.Width = FLOAT(_destRect.right - _destRect.left);
|
||
vp.Height = FLOAT(_destRect.bottom - _destRect.top);
|
||
_d3dDC->RSSetViewports(1, &vp);
|
||
|
||
_d3dDC->Draw(4, 0);
|
||
}
|
||
}
|