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CommentWindow.cpp
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#include "stdafx.h"
#include "Util.h"
#include "CommentWindow.h"
#include <functional>
#include <emmintrin.h>
#include <gdiplus.h>
#pragma comment(lib, "gdiplus.lib")
#ifndef ASSERT
#include <cassert>
#define ASSERT assert
#endif
namespace
{
#if 0 // アセンブリ検索用
#define MAGIC_NUMBER(x) { g_dwMagic=(x); }
DWORD g_dwMagic;
#else
#define MAGIC_NUMBER
#endif
void ApplyOpacityPlain(DWORD *pBits, int range, BYTE opacityA, BYTE opacityRGB)
{
MAGIC_NUMBER(0x12452356);
for (int i = 0; i < range; ++i) {
DWORD x = pBits[i];
pBits[i] = ((x>>24)*opacityA&0xFF00)<<16 | ((x>>16&0xFF)*opacityRGB&0xFF00)<<8 | ((x>>8&0xFF)*opacityRGB&0xFF00) | ((x&0xFF)*opacityRGB)>>8;
}
}
void ApplyOpacitySse2(DWORD *pBits, int range, BYTE opacityA, BYTE opacityRGB)
{
int top = 3 - reinterpret_cast<ULONG_PTR>(pBits + 3) / sizeof(DWORD) % 4;
ApplyOpacityPlain(pBits, min(top, range), opacityA, opacityRGB);
// ApplyOpacityPlain()に対して単体で実測6.8倍速い
MAGIC_NUMBER(0x13243546);
__m128i *pAligned = reinterpret_cast<__m128i*>(pBits + top);
int bottom = (range - top) / 4;
__m128i zero = _mm_setzero_si128();
__m128i mult = _mm_set_epi16(opacityA, opacityRGB, opacityRGB, opacityRGB, opacityA, opacityRGB, opacityRGB, opacityRGB);
for (int i = 0; i < bottom; ++i) {
__m128i x = _mm_load_si128(pAligned + i);
__m128i ly = _mm_mulhi_epu16(_mm_unpacklo_epi8(zero, x), mult);
__m128i hy = _mm_mulhi_epu16(_mm_unpackhi_epi8(zero, x), mult);
_mm_store_si128(pAligned + i, _mm_packus_epi16(ly, hy));
}
if (range > top) {
ApplyOpacityPlain(pBits + top + bottom * 4, range - (top + bottom * 4), opacityA, opacityRGB);
}
}
void ApplyOpacity(DWORD *pBits, int range, BYTE opacityA, BYTE opacityRGB, bool bUseSse2)
{
if (bUseSse2) {
ApplyOpacitySse2(pBits, range, opacityA, opacityRGB);
} else {
ApplyOpacityPlain(pBits, range, opacityA, opacityRGB);
}
}
extern const int EMOJI_RANGE_TABLE[100];
bool MeasureString(Gdiplus::Graphics &g, const tstring &text, const Gdiplus::Font &font, const Gdiplus::Font &fontEmoji,
Gdiplus::REAL lineHeight, Gdiplus::PointF origin, Gdiplus::RectF *boundingBox = nullptr,
const std::function<void(LPCTSTR, int, const Gdiplus::Font &, const Gdiplus::PointF &)> &func = nullptr)
{
Gdiplus::RectF bb(0, 0, 0, 0);
bool bOk = false;
if (&font == &fontEmoji) {
// そのまま計測
if (!boundingBox || g.MeasureString(text.c_str(), static_cast<int>(text.size()), &font, origin, &bb) == Gdiplus::Ok) {
bOk = true;
if (func) {
func(text.c_str(), static_cast<int>(text.size()), font, origin);
}
}
if (boundingBox) {
*boundingBox = bb;
}
return bOk;
}
// 絵文字とその他のフォントを切り替えながら計測
auto it = text.begin();
auto itEnd = text.end();
auto itFrom = text.begin();
auto itTo = text.begin();
int hi = 0;
const int *pEnd = EMOJI_RANGE_TABLE + _countof(EMOJI_RANGE_TABLE);
const Gdiplus::Font *pFont = nullptr;
Gdiplus::PointF initialOrigin = origin;
for (;;) {
// 終端に必ず改行があるかのように処理する
int c = it == itEnd ? L'\n' : *it;
if (0xD800 <= c && c <= 0xDBFF) {
// Highサロゲート
hi = c;
++it;
continue;
}
if (hi != 0 && 0xDC00 <= c && c <= 0xDFFF) {
// HighサロゲートにつづくLowサロゲート
c = ((hi - 0xD800) << 10) + c + 0x2400;
}
hi = 0;
const Gdiplus::Font *pSwitchFont = nullptr;
const int *pBound = std::upper_bound(EMOJI_RANGE_TABLE, pEnd, c);
if (pBound != pEnd && ((pBound - EMOJI_RANGE_TABLE) & 1)) {
// 絵文字か特定の異体字セレクタ
if (pFont != &fontEmoji && c != 0xFE0E && c != 0xFE0F) {
// 絵文字のフォントに切り替え
pSwitchFont = &fontEmoji;
}
} else {
if (pFont != &font) {
// その他のフォントに切り替え
pSwitchFont = &font;
}
}
// フォントが切り替わったか改行か終端
if (pSwitchFont || c == L'\n') {
if (!pFont && c == L'\n') {
// おもに空行
pFont = pSwitchFont ? pSwitchFont : &font;
}
if (pFont) {
Gdiplus::RectF tmpbb;
if (itTo == itFrom) {
if (c == L'\n') {
// 改行のみ
origin.X = initialOrigin.X;
origin.Y += lineHeight;
}
} else if (g.MeasureString(&*itFrom, static_cast<int>(itTo - itFrom), pFont, origin, &tmpbb) == Gdiplus::Ok) {
bOk = true;
if (func) {
func(&*itFrom, static_cast<int>(itTo - itFrom), *pFont, origin);
}
origin.X += tmpbb.Width;
bb.Width = max(bb.Width, origin.X - initialOrigin.X);
bb.Height = max(bb.Height, origin.Y + tmpbb.Height - initialOrigin.Y);
if (c == L'\n') {
origin.X = initialOrigin.X;
origin.Y += lineHeight;
}
}
}
if (it == itEnd) {
break;
} else if (c == L'\n') {
// 次の文字から開始。フォント未定
itFrom = it + 1;
pFont = nullptr;
} else {
// この文字から開始
itFrom = itTo;
pFont = pSwitchFont;
}
}
itTo = ++it;
}
if (boundingBox) {
*boundingBox = bb;
}
return bOk;
}
}
bool CCommentWindow::Initialize(HINSTANCE hinst, bool *pbEnableOsdCompositor, bool bSetHookOsdCompositor)
{
if (!hinst_) {
WNDCLASSEX wc = {};
wc.cbSize = sizeof(WNDCLASSEX);
wc.lpfnWndProc = WndProc;
wc.hInstance = hinst;
wc.lpszClassName = TEXT("ru.jk.comment");
if (RegisterClassEx(&wc) == 0) {
return false;
}
// TVTest本体もGdiplusを使っているので遅延ロードはしない
Gdiplus::GdiplusStartupInput si;
if (Gdiplus::GdiplusStartup(&gdiplusToken_, &si, nullptr) != Gdiplus::Ok) {
return false;
}
hinst_ = hinst;
if (pbEnableOsdCompositor && *pbEnableOsdCompositor) {
// 擬似でないOSDを有効にする
// 実際に使うかどうかはSetStyle()で決める
*pbEnableOsdCompositor = osdCompositor_.Initialize(bSetHookOsdCompositor);
osdCompositor_.SetUpdateCallback(UpdateCallback, this);
}
bSse2Available_ = IsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE) != FALSE;
}
return true;
}
void CCommentWindow::Finalize()
{
if (hinst_) {
osdCompositor_.Uninitialize();
Gdiplus::GdiplusShutdown(gdiplusToken_);
UnregisterClass(TEXT("ru.jk.comment"), hinst_);
hinst_ = nullptr;
}
}
CCommentWindow::CCommentWindow()
: hinst_(nullptr)
, gdiplusToken_(0)
, bSse2Available_(false)
, hwnd_(nullptr)
, hwndParent_(nullptr)
, hbmWork_(nullptr)
, pBits_(nullptr)
, hdcWork_(nullptr)
, hDrawingEvent_(nullptr)
, hDrawingIdleEvent_(nullptr)
, bQuitDrawingThread_(false)
, commentSizeMin_(1)
, commentSizeMax_(INT_MAX)
, lineCount_(DEFAULT_LINE_COUNT)
, lineDrawCount_(DEFAULT_LINE_DRAW_COUNT - 0.5)
, fontScale_(1.0)
, fontSmallScale_(1.0)
, fontStyle_(Gdiplus::FontStyleRegular)
, bAntiAlias_(false)
, opacity_(255)
, fontOutline_(0)
, displayDuration_(DISPLAY_DURATION)
, rts_(0)
, chatCount_(0)
, currentWindowWidth_(-1)
, autoHideCount_(0)
, parentSizedCount_(0)
, bUseOsd_(false)
, bShowOsd_(false)
, bUseTexture_(false)
, bUseDrawingThread_(false)
, pTextureBitmap_(nullptr)
, pgTexture_(nullptr)
, currentTextureHeight_(0)
, bForceRefreshDirty_(false)
, debugFlags_(0)
{
fontName_[0] = TEXT('\0');
fontNameMulti_[0] = TEXT('\0');
fontNameEmoji_[0] = TEXT('\0');
RECT rcZero = {};
rcParent_ = rcZero;
rcOsdSurface_ = rcZero;
}
CCommentWindow::~CCommentWindow()
{
Destroy();
Finalize();
}
bool CCommentWindow::Create(HWND hwndParent)
{
if (hwnd_) {
return true;
}
if (hinst_ && hwndParent) {
// 実際には親ウィンドウではない
hwndParent_ = hwndParent;
CreateWindowEx(WS_EX_LAYERED | WS_EX_TRANSPARENT | WS_EX_NOACTIVATE,
TEXT("ru.jk.comment"), nullptr, WS_POPUP, 0, 0, 0, 0, hwndParent_, nullptr, hinst_, this);
if (hwnd_) {
if (!bUseOsd_ && bUseDrawingThread_) {
hDrawingEvent_ = CreateEvent(nullptr, FALSE, FALSE, nullptr);
hDrawingIdleEvent_ = CreateEvent(nullptr, TRUE, TRUE, nullptr);
if (hDrawingEvent_ && hDrawingIdleEvent_) {
bQuitDrawingThread_ = false;
drawingThread_ = std::thread([this](){ DrawingThread(); });
SetThreadPriority(drawingThread_.native_handle(), THREAD_PRIORITY_ABOVE_NORMAL);
}
}
osdCompositor_.SetContainerWindow(hwndParent_);
OnParentSize();
if (!bUseOsd_) {
ShowWindow(hwnd_, SW_SHOWNOACTIVATE);
}
return true;
}
}
return false;
}
void CCommentWindow::Destroy()
{
if (drawingThread_.joinable()) {
bQuitDrawingThread_ = true;
SetEvent(hDrawingEvent_);
drawingThread_.join();
}
if (hDrawingIdleEvent_) {
CloseHandle(hDrawingIdleEvent_);
hDrawingIdleEvent_ = nullptr;
}
if (hDrawingEvent_) {
CloseHandle(hDrawingEvent_);
hDrawingEvent_ = nullptr;
}
if (hwnd_) {
DestroyWindow(hwnd_);
}
if (hbmWork_) {
DeleteObject(hbmWork_);
hbmWork_ = nullptr;
}
if (hdcWork_) {
DeleteDC(hdcWork_);
hdcWork_ = nullptr;
}
if (bShowOsd_) {
osdCompositor_.DeleteTexture(0, 0);
bShowOsd_ = false;
osdCompositor_.UpdateSurface();
}
autoHideCount_ = 0;
parentSizedCount_ = 0;
delete pgTexture_;
pgTexture_ = nullptr;
delete pTextureBitmap_;
pTextureBitmap_ = nullptr;
}
// コメントの描画スタイルを設定する
// 動的変更には対応していないので、これを呼んだらDestroy()&Create()するべき
void CCommentWindow::SetStyle(LPCTSTR fontName, LPCTSTR fontNameMulti, LPCTSTR fontNameEmoji, bool bBold, bool bAntiAlias,
int fontOutline, bool bUseOsdCompositor, bool bUseTexture, bool bUseDrawingThread)
{
WaitForIdleDrawingThread();
ClearChat();
_tcsncpy_s(fontName_, fontName, _TRUNCATE);
_tcsncpy_s(fontNameMulti_, fontNameMulti, _TRUNCATE);
_tcsncpy_s(fontNameEmoji_, fontNameEmoji, _TRUNCATE);
fontStyle_ = bBold ? Gdiplus::FontStyleBold : Gdiplus::FontStyleRegular;
bAntiAlias_ = bAntiAlias;
fontOutline_ = max(fontOutline, 0);
bUseOsd_ = bUseOsdCompositor;
bUseTexture_ = bUseTexture;
bUseDrawingThread_ = bUseDrawingThread;
}
void CCommentWindow::SetCommentSize(int size, int sizeMin, int sizeMax, int lineMargin)
{
WaitForIdleDrawingThread();
ClearChat();
commentSizeMin_ = max(sizeMin, 1);
commentSizeMax_ = max(sizeMax, 1);
lineCount_ = max(DEFAULT_LINE_COUNT * 10000 / min(max(size,10),1000) / min(max(lineMargin,10),1000), 1);
fontScale_ = 100.0 / min(max(lineMargin,10),1000);
fontSmallScale_ = fontScale_ * FONT_SMALL_RATIO / 100;
}
void CCommentWindow::SetDrawLineCount(int lineDrawCount)
{
lineDrawCount_ = lineDrawCount - 0.5;
}
void CCommentWindow::SetDisplayDuration(int duration)
{
WaitForIdleDrawingThread();
displayDuration_ = min(max(duration, 100), 100000);
}
void CCommentWindow::SetOpacity(BYTE opacity)
{
WaitForIdleDrawingThread();
opacity_ = opacity;
}
void CCommentWindow::SetDebugFlags(int debugFlags)
{
WaitForIdleDrawingThread();
debugFlags_ = debugFlags;
}
// 作業用ビットマップを確保
bool CCommentWindow::AllocateWorkBitmap(int width, int height, bool *pbRealloc)
{
if (hbmWork_) {
BITMAP bm;
if (GetObject(hbmWork_,sizeof(BITMAP),&bm) && bm.bmWidth==width && bm.bmHeight==height) {
*pbRealloc = false;
return true;
}
DeleteObject(hbmWork_);
hbmWork_ = nullptr;
}
if (hdcWork_) {
DeleteDC(hdcWork_);
hdcWork_ = nullptr;
}
//デバイスコンテキストも同時に確保
if (!hwnd_) {
return false;
}
HDC hdc = GetDC(hwnd_);
hdcWork_ = CreateCompatibleDC(hdc);
ReleaseDC(hwnd_, hdc);
if (!hdcWork_) {
return false;
}
BITMAPINFO bmi = {};
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = width;
bmi.bmiHeader.biHeight = height;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
hbmWork_ = CreateDIBSection(nullptr, &bmi, DIB_RGB_COLORS, &pBits_, nullptr, 0);
*pbRealloc = true;
return hbmWork_ != nullptr;
}
void CCommentWindow::OnParentMove()
{
if (hwnd_) {
GetWindowRect(hwndParent_, &rcParent_);
SetWindowPos(hwnd_, nullptr, rcParent_.left, rcParent_.top, 0, 0, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}
}
bool CCommentWindow::IsParentSized()
{
if (hwnd_) {
RECT rc;
if (GetWindowRect(hwndParent_, &rc) && !EqualRect(&rc, &rcParent_)) {
return true;
}
if (bUseOsd_ && bShowOsd_) {
// 動画サイズだけ変化するかもしれないため
if (osdCompositor_.GetSurfaceRect(&rc) && !EqualRect(&rc, &rcOsdSurface_)) {
return true;
}
}
}
return false;
}
void CCommentWindow::OnParentSize()
{
if (hwnd_) {
GetWindowRect(hwndParent_, &rcParent_);
if (bUseOsd_ && bShowOsd_) {
osdCompositor_.DeleteTexture(0, 0);
bShowOsd_ = false;
RECT rc;
if (osdCompositor_.GetSurfaceRect(&rc)) {
rcOsdSurface_ = rc;
if (rc.right - rc.left > 0 && rc.bottom - rc.top > 0) {
// 左上と右下にテクスチャ登録することでOSDの描画領域を動画全体に拡げる
BITMAPINFO bmi = {};
bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmi.bmiHeader.biWidth = 1;
bmi.bmiHeader.biHeight = 1;
bmi.bmiHeader.biPlanes = 1;
bmi.bmiHeader.biBitCount = 32;
bmi.bmiHeader.biCompression = BI_RGB;
void *pBits;
HBITMAP hbm = CreateDIBSection(nullptr, &bmi, DIB_RGB_COLORS, &pBits, nullptr, 0);
if (hbm) {
*static_cast<DWORD*>(pBits) = 0/*0xFF00FF00*/;
osdCompositor_.AddTexture(hbm, 0, 0, true, 0);
osdCompositor_.AddTexture(hbm, rc.right-rc.left-1, rc.bottom-rc.top-1, true, 0);
DeleteObject(hbm);
bShowOsd_ = true;
}
}
}
} else if (!bUseOsd_) {
RECT rc = rcParent_;
SetWindowPos(hwnd_, nullptr, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, SWP_NOZORDER | SWP_NOACTIVATE);
}
}
}
// コメントを1つだけ追加する
void CCommentWindow::AddChat(LPCTSTR text, COLORREF color, COLORREF shadowColor, CHAT_POSITION position,
CHAT_SIZE size, CHAT_ALIGN align, bool bInsertLast, BYTE backOpacity, int delay)
{
if (hwnd_) {
std::list<CHAT> lc(1);
CHAT &c = lc.front();
c.pts = rts_ + delay;
c.count = ++chatCount_;
c.line = INT_MAX;
c.colorB = GetBValue(color);
c.colorG = GetGValue(color);
c.colorR = GetRValue(color);
c.colorA = bAntiAlias_ ? backOpacity : backOpacity ? 255 : 0;
c.shadowColorB = GetBValue(shadowColor);
c.shadowColorG = GetGValue(shadowColor);
c.shadowColorR = GetRValue(shadowColor);
c.position = position;
c.bSmall = size != CHAT_SIZE_DEFAULT;
c.alignFactor = position==CHAT_POS_DEFAULT || align==CHAT_ALIGN_LEFT ? 0 : align==CHAT_ALIGN_RIGHT ? 2 : 1;
c.bInsertLast = position!=CHAT_POS_DEFAULT && bInsertLast;
c.text.reserve(_tcslen(text));
c.bMultiLine = false;
for (size_t i = 0; text[i]; ++i) {
if (text[i] != TEXT('\r')) {
c.text.push_back(text[i]);
if (text[i] == TEXT('\n')) {
c.bMultiLine = true;
}
}
}
c.bDrew = false;
// 一時リストに追加(描画時にchatList_にマージ)
lock_recursive_mutex lock(chatLock_);
chatPoolList_.splice(chatPoolList_.end(), lc);
}
}
// 最後に追加された同時刻のコメントの表示タイミングをdurationの範囲内で適当に散らす
void CCommentWindow::ScatterLatestChats(int duration)
{
if (hwnd_ && duration > 0) {
lock_recursive_mutex lock(chatLock_);
std::list<CHAT>::iterator it = chatPoolList_.begin();
DWORD latestPts = 0;
int latestNum = 0;
for (; it != chatPoolList_.end(); ++it, ++latestNum) {
if (latestPts != it->pts) {
latestPts = it->pts;
latestNum = 0;
}
}
if (latestNum > 0) {
for (int i = latestNum - 1; i >= 0; --i) {
(--it)->pts += duration * i / latestNum;
}
}
}
}
void CCommentWindow::ClearChat()
{
WaitForIdleDrawingThread();
chatList_.clear();
chatPoolList_.clear();
textureList_.clear();
bForceRefreshDirty_ = true;
}
#define DWORD_MSB(x) ((x) & 0x80000000)
#define DWORD_DIFF(a,b) (DWORD_MSB((a)-(b)) ? -(int)((b)-(a)) : (int)((a)-(b)))
// ウィンドウのタイムスタンプを前進させる
// スレッドの描画完了を待つので呼ぶタイミングに注意
void CCommentWindow::Forward(int duration)
{
WaitForIdleDrawingThread();
if (duration > 0) {
rts_ += duration;
for (auto it = chatList_.cbegin(); it != chatList_.end(); ) {
// 表示期限切れのコメントを追い出す
// タイムスタンプの計算は2^32を法とする合同式
if (DWORD_MSB(it->pts + displayDuration_ - rts_)) {
if (it->position == CHAT_POS_SHITA && it->bDrew) {
bForceRefreshDirty_ = true;
}
it = chatList_.erase(it);
} else {
++it;
}
}
for (auto it = chatPoolList_.cbegin(); it != chatPoolList_.end(); ) {
if (DWORD_MSB(it->pts + displayDuration_ - rts_)) {
it = chatPoolList_.erase(it);
} else {
++it;
}
}
}
}
void CCommentWindow::Update()
{
WaitForIdleDrawingThread();
if (hwnd_ && bUseOsd_) {
// OSDに描画
if (bShowOsd_) {
osdCompositor_.UpdateSurface();
} else {
if ((!chatList_.empty() || !chatPoolList_.empty()) && IsWindowVisible(hwndParent_)) {
bShowOsd_ = true;
OnParentSize();
if (bShowOsd_) {
osdCompositor_.UpdateSurface();
}
}
}
} else if (hwnd_ && !bUseOsd_) {
// レイヤードウィンドウに描画
if (IsWindowVisible(hwnd_)) {
UpdateLayeredWindow();
} else {
if ((!chatList_.empty() || !chatPoolList_.empty()) && IsWindowVisible(hwndParent_)) {
ShowWindow(hwnd_, SW_SHOWNOACTIVATE);
UpdateLayeredWindow();
}
}
}
}
void CCommentWindow::UpdateLayeredWindow()
{
ASSERT(!drawingThread_.joinable() || WaitForSingleObject(hDrawingIdleEvent_, 0) == WAIT_OBJECT_0);
// GDIオブジェクトを確保
RECT rc;
GetClientRect(hwnd_, &rc);
int width = rc.right;
int height = rc.bottom;
bool bRealloc;
if (width <= 0 || height <= 0 || !AllocateWorkBitmap(width, height, &bRealloc)) {
return;
}
HBITMAP hbmOld = static_cast<HBITMAP>(SelectObject(hdcWork_, hbmWork_));
if (bRealloc) {
Gdiplus::Graphics g(hdcWork_);
g.Clear(bAntiAlias_ ? Gdiplus::Color::Transparent : Gdiplus::Color(12, 12, 12));
SetRect(&rcUnused_, 0, 0, width, height);
SetRect(&rcUnusedWoShita_, 0, 0, width, height);
SetRect(&rcUnusedIntersect_, 0, 0, width, height);
SetRect(&rcDirty_, 0, 0, width, height);
}
// 1つ前の描画結果を即座に適用することで同期がずれる可能性を下げる
SIZE sz = {width, height};
POINT ptSrc = {0, 0};
BLENDFUNCTION blend = {AC_SRC_OVER, 0, 255, AC_SRC_ALPHA};
// ダーティ領域を指示すると閑散とした実況で実測25%強軽い
HDC hdc = GetDC(hwnd_);
UPDATELAYEREDWINDOWINFO info;
info.cbSize = sizeof(info);
info.hdcDst = hdc;
info.pptDst = nullptr;
info.psize = &sz;
info.hdcSrc = hdcWork_;
info.pptSrc = &ptSrc;
info.crKey = RGB(12, 12, 12);
info.pblend = &blend;
info.dwFlags = bAntiAlias_ ? ULW_ALPHA : ULW_COLORKEY;
info.prcDirty = &rcDirty_;
// このAPIはVista以降に存在するがVistaの実装はバグを含むらしい(KB955688)ので注意
::UpdateLayeredWindowIndirect(hwnd_, &info);
ReleaseDC(hwnd_, hdc);
SelectObject(hdcWork_, hbmOld);
if (drawingThread_.joinable()) {
// あとはスレッドに任せる
// 目的は高速化ではなくメインスレッドの拘束時間を減らすこと
ResetEvent(hDrawingIdleEvent_);
SetEvent(hDrawingEvent_);
} else {
UpdateChat();
}
}
// 描画スレッド
void CCommentWindow::DrawingThread()
{
while (WaitForSingleObject(hDrawingEvent_, INFINITE) == WAIT_OBJECT_0 && !bQuitDrawingThread_) {
UpdateChat();
// これがシグナル状態のとき描画スレッドはメンバ変数にアクセスしてはいけない
SetEvent(hDrawingIdleEvent_);
}
bQuitDrawingThread_ = true;
}
// 描画スレッドがアイドル状態になるのを待つ
bool CCommentWindow::WaitForIdleDrawingThread()
{
return !drawingThread_.joinable() || bQuitDrawingThread_ || WaitForSingleObject(hDrawingIdleEvent_, INFINITE) == WAIT_OBJECT_0;
}
void CCommentWindow::UpdateChat()
{
BITMAP bm;
if (!GetObject(hbmWork_, sizeof(BITMAP), &bm) || bm.bmWidth <= 0 || bm.bmHeight <= 0) {
return;
}
int width = bm.bmWidth;
int height = bm.bmHeight;
HBITMAP hbmOld = static_cast<HBITMAP>(SelectObject(hdcWork_, hbmWork_));
// GDI+描画スコープ
{
Gdiplus::Graphics g(hdcWork_);
// 合成方式(透過orカラーキー)によって背景色を変える
Gdiplus::SolidBrush br(bAntiAlias_ ? Gdiplus::Color::Transparent : Gdiplus::Color(12, 12, 12));
if (debugFlags_ & 8) {
// Debug:初期化領域に色をつける
static DWORD s_count;
br.SetColor(Gdiplus::Color(128, 0, ++s_count * 2 % 256, 0));
}
g.SetCompositingMode(Gdiplus::CompositingModeSourceCopy);
// 60fpsあたりになると初期化コストも馬鹿にできないので使用済み部分だけクリア(閑散とした実況では実測15%軽い)
g.FillRectangle(&br, 0, 0, width, rcUnused_.top);
g.FillRectangle(&br, 0, rcUnused_.bottom, width, height - rcUnused_.bottom);
RECT rcLast = rcUnusedWoShita_;
bool bHasFirstDrawShita;
DrawChat(g, width, height, &rcUnused_, &rcUnusedWoShita_, &bHasFirstDrawShita);
// クリア+使用済み==ダーティ領域
IntersectRect(&rcDirty_, &rcLast, &rcUnusedWoShita_);
// 使用済み領域を積算
RECT rcTmp = rcUnusedIntersect_;
IntersectRect(&rcUnusedIntersect_, &rcTmp, &rcUnused_);
// 下は静止コメしかないのでダーティ領域更新をサボる
if (bHasFirstDrawShita || bForceRefreshDirty_) {
rcDirty_ = rcUnusedIntersect_;
rcUnusedIntersect_ = rcUnused_;
bForceRefreshDirty_ = false;
}
SetRect(&rcDirty_, 0, rcDirty_.bottom<height && rcDirty_.top<=0 ? rcDirty_.bottom : 0,
width, rcDirty_.bottom>=height ? rcDirty_.top : height);
}
SelectObject(hdcWork_, hbmOld);
if (bAntiAlias_ && opacity_ != 255) {
// 不透明度を適用(BLENDFUNCTIONでも可能だけどやたら重い)
ApplyOpacity(static_cast<DWORD*>(pBits_), width * (height - rcUnused_.bottom), opacity_, opacity_, bSse2Available_);
ApplyOpacity(static_cast<DWORD*>(pBits_) + width * (height - rcUnused_.top), width * rcUnused_.top, opacity_, opacity_, bSse2Available_);
}
}
// サーフェイス合成時のコールバック
// COsdCompositor::UpdateSurface()から呼ばれるので必ずメインスレッド
BOOL CALLBACK CCommentWindow::UpdateCallback(void *pBits, const RECT *pSurfaceRect, int pitch, void *pClientData)
{
CCommentWindow *pThis = static_cast<CCommentWindow*>(pClientData);
int width = pSurfaceRect->right - pSurfaceRect->left;
int height = pSurfaceRect->bottom - pSurfaceRect->top;
// GDI+描画スコープ
if (pThis->bShowOsd_ && width > 0 && height > 0) {
RECT rcUnused, rcUnusedWoShita;
bool bHasFirstDrawShita;
{
// Premultにすると実測で10%程度軽いけどOsdCompositorは非Premultなので半透明部分がないときだけ使う
Gdiplus::Bitmap bitmap(width, height, pitch, !pThis->bAntiAlias_ ? PixelFormat32bppPARGB : PixelFormat32bppARGB, static_cast<BYTE*>(pBits));
Gdiplus::Graphics g(&bitmap);
pThis->DrawChat(g, width, height, &rcUnused, &rcUnusedWoShita, &bHasFirstDrawShita);
}
if (pThis->opacity_ != 255 && pitch % 4 == 0) {
// 不透明度を適用
ApplyOpacity(static_cast<DWORD*>(pBits), pitch / 4 * rcUnused.top, pThis->opacity_, 255, pThis->bSse2Available_);
ApplyOpacity(static_cast<DWORD*>(pBits) + pitch / 4 * rcUnused.bottom, pitch / 4 * (height - rcUnused.bottom), pThis->opacity_, 255, pThis->bSse2Available_);
}
}
return FALSE;
}
// コメントを描画する
// メインもしくは描画スレッドから呼ばれるのでメンバ変数へのアクセスに注意
// prcUnused: 描画しなかった(コメントの存在しない)領域を返す。left,rightフィールドは一応格納しているが意味はない
// prcUnusedWoShita: 同上だが下コメを無視した領域を返す
// pbHasFirstDrawShita: 初めて描画開始された下コメがあるかどうか返す
void CCommentWindow::DrawChat(Gdiplus::Graphics &g, int width, int height, RECT *prcUnused, RECT *prcUnusedWoShita, bool *pbHasFirstDrawShita)
{
{
// 最小・最大文字サイズに応じて表示ライン数を増減する
int lineCountMax = static_cast<int>(fontScale_ * height / commentSizeMin_);
int lineCountMin = static_cast<int>(fontScale_ * height / commentSizeMax_);
int actLineCount = min(max(lineCount_, lineCountMin), max(lineCountMax, 1));
int textureWidth = max(width, TEXTURE_BITMAP_WIDTH_MIN);
if (bUseTexture_) {
// テクスチャ用ビットマップを確保
if (!pTextureBitmap_ || (int)pTextureBitmap_->GetWidth() != textureWidth || (int)pTextureBitmap_->GetHeight() != height) {
delete pgTexture_;
delete pTextureBitmap_;
// Premultの方がかなり軽負荷 (参考: http://www.codeproject.com/Tips/66909/Rendering-fast-with-GDI-What-to-do-and-what-not-to )
pTextureBitmap_ = new Gdiplus::Bitmap(textureWidth, height, PixelFormat32bppPARGB);
pgTexture_ = new Gdiplus::Graphics(pTextureBitmap_);
pgTexture_->SetTextRenderingHint(bAntiAlias_ ? Gdiplus::TextRenderingHintAntiAlias : Gdiplus::TextRenderingHintSingleBitPerPixel);
textureList_.clear();
}
}
g.SetTextRenderingHint(bAntiAlias_ ? Gdiplus::TextRenderingHintAntiAlias : Gdiplus::TextRenderingHintSingleBitPerPixel);
Gdiplus::REAL fontEm = static_cast<Gdiplus::REAL>(fontScale_ * height / actLineCount);
Gdiplus::REAL fontEmSmall = static_cast<Gdiplus::REAL>(fontSmallScale_ * height / actLineCount);
int fontStyle = fontStyle_;
// 高DPI時の影響を打ち消すため
Gdiplus::REAL emPointsRatio = 72 / g.GetDpiY();
Gdiplus::Font font(fontName_, fontEm * emPointsRatio, fontStyle);
Gdiplus::Font fontSmall(fontName_, fontEmSmall * emPointsRatio, fontStyle);
// 複数行用フォント
Gdiplus::Font tmpFontMulti(fontNameMulti_, fontEm * emPointsRatio, fontStyle);
Gdiplus::Font tmpFontMultiSmall(fontNameMulti_, fontEmSmall * emPointsRatio, fontStyle);
// 絵文字用フォント
Gdiplus::Font tmpFontEmoji(fontNameEmoji_[0] ? fontNameEmoji_ : fontName_, fontEm * emPointsRatio, fontStyle);
Gdiplus::Font tmpFontEmojiSmall(fontNameEmoji_[0] ? fontNameEmoji_ : fontName_, fontEmSmall * emPointsRatio, fontStyle);
// 可能なら同じオブジェクトを参照しておく(いいことあるかもしれないので)
bool bSameMulti = !_tcscmp(fontName_, fontNameMulti_);
bool bSameEmoji = !fontNameEmoji_[0] || !_tcscmp(fontName_, fontNameEmoji_);
bool bSameMultiEmoji = !fontNameEmoji_[0] || !_tcscmp(fontNameMulti_, fontNameEmoji_);
const Gdiplus::Font &fontMulti = bSameMulti ? font : tmpFontMulti;
const Gdiplus::Font &fontMultiSmall = bSameMulti ? fontSmall : tmpFontMultiSmall;
const Gdiplus::Font &fontEmoji = bSameEmoji ? font : tmpFontEmoji;
const Gdiplus::Font &fontEmojiSmall = bSameEmoji ? fontSmall : tmpFontEmojiSmall;
const Gdiplus::Font &fontMultiEmoji = bSameMultiEmoji ? fontMulti : tmpFontEmoji;
const Gdiplus::Font &fontMultiEmojiSmall = bSameMultiEmoji ? fontMultiSmall : tmpFontEmojiSmall;
Gdiplus::FontFamily fontFamily;
Gdiplus::FontFamily fontFamilyMulti;
Gdiplus::FontFamily fontFamilyEmoji;
Gdiplus::FontFamily fontFamilyMultiEmoji;
font.GetFamily(&fontFamily);
fontMulti.GetFamily(&fontFamilyMulti);
fontEmoji.GetFamily(&fontFamilyEmoji);
fontMultiEmoji.GetFamily(&fontFamilyMultiEmoji);
{
lock_recursive_mutex lock(chatLock_);
// 新しいコメントがあれば重ならないようにリストを再配置する
while (!chatPoolList_.empty()) {
CHAT &c = chatPoolList_.front();
// 実際の描画サイズを計測
const Gdiplus::Font &selFont = c.bMultiLine ? (c.bSmall ? fontMultiSmall : fontMulti) : (c.bSmall ? fontSmall : font);
const Gdiplus::Font &selFontEmoji = c.bMultiLine ? (c.bSmall ? fontMultiEmojiSmall : fontMultiEmoji) : (c.bSmall ? fontEmojiSmall : fontEmoji);
Gdiplus::REAL selFontEm = c.bSmall ? fontEmSmall : fontEm;
Gdiplus::RectF rcDraw;
if (!MeasureString(g, c.text, selFont, selFontEmoji, selFontEm, Gdiplus::PointF(0, 0), &rcDraw)) {
chatPoolList_.pop_front();
continue;
}
c.currentDrawWidth = (int)rcDraw.Width;
c.currentDrawHeight = (int)rcDraw.Height;
// コメントの表示ラインを設定する
// 下コメ時は複数行対応のために下端が表示できるラインより上に配置
c.line = c.position == CHAT_POS_SHITA && c.bMultiLine ? actLineCount - 1 - (int)((double)rcDraw.Height / height * actLineCount) :
c.position == CHAT_POS_SHITA ? actLineCount - 1 : 0;
std::list<CHAT>::iterator it = chatList_.begin();
std::list<CHAT>::const_iterator itLast = chatList_.end();
for (; it != chatList_.end(); ++it) {
if (it->line != INT_MAX && c.position == it->position && c.alignFactor == it->alignFactor) {
if (c.bInsertLast) {
// 最後に追加されたコメントを探す
if (itLast == chatList_.end() || DWORD_MSB(itLast->count - it->count)) {
itLast = it;
}
} else if (c.position == CHAT_POS_SHITA) {
// 下にあるコメントほどリスト前方に挿入されている
if (c.line > it->line) {
break;
} else if (c.line == it->line) {
// cが表示開始する時点で*itが消えていれば重ならない
if (DWORD_DIFF(c.pts, it->pts) > displayDuration_) {
break;
}
c.line--;
}
} else if (c.position == CHAT_POS_UE) {
// 上にあるコメントほどリスト前方に挿入されている
if (c.line < it->line) {
break;
} else if (c.line == it->line) {
if (DWORD_DIFF(c.pts, it->pts) > displayDuration_) {
break;
}
c.line++;
}
} else {
// 上にあるコメントほどリスト前方に挿入されている
// 前のに追いつかなければおｋ
if (c.line < it->line) {
break;
} else if (c.line == it->line) {
// cが表示開始する時点で*itの右端がウィンドウ内にあれば重ならない
if (DWORD_DIFF(c.pts, it->pts) * (width + it->currentDrawWidth) / displayDuration_ - it->currentDrawWidth > 0) {
// *itが表示期限を迎える時点でcの左端がウィンドウ内にあれば追いつかない
if (width - DWORD_DIFF(it->pts + displayDuration_, c.pts) * (width + c.currentDrawWidth) / displayDuration_ > 0) {
break;
}
}
c.line++;
}
}
}
}
if (itLast != chatList_.end()) {
if (c.position == CHAT_POS_SHITA) {
if (itLast->line > 0) {
// itLastの直前に挿入する
c.line = itLast->line - 1;
}
} else {
if (itLast->line < actLineCount - 1) {
c.line = itLast->line + 1;
}
}
// 挿入位置を再検索
for (it = chatList_.begin(); it != chatList_.end(); ++it) {
if (it->line != INT_MAX && c.position == it->position && c.alignFactor == it->alignFactor &&
(c.position == CHAT_POS_SHITA && c.line >= it->line || c.position == CHAT_POS_UE && c.line <= it->line))
{
// 重なるコメントの表示期限を縮める
if (c.line == it->line && DWORD_DIFF(c.pts, it->pts) <= displayDuration_) {
it->pts = c.pts - displayDuration_;
}
break;
}
}
}
chatList_.splice(it, chatPoolList_, chatPoolList_.begin());
}
// End CBlockLock
}
if (currentWindowWidth_ != width) {
// ウィンドウサイズが変わったのでテクスチャの破棄とコメントの描画サイズの再計測をする
currentWindowWidth_ = -1;
textureList_.clear();
}
SetRect(prcUnused, 0, 0, width, height);
SetRect(prcUnusedWoShita, 0, 0, width, height);
*pbHasFirstDrawShita = false;
Gdiplus::REAL shadowOffset = (Gdiplus::REAL)(fontScale_ * height / actLineCount / 15);
if (fontOutline_) {
// 縁取り表示時は300%を基準に設定に応じて増減
shadowOffset = shadowOffset * fontOutline_ / 150;
}
if (!bAntiAlias_) {
// 小数点以下のずれは描画結果が汚いため四捨五入
shadowOffset = (Gdiplus::REAL)max((int)(shadowOffset + 0.5), 1);
}
Gdiplus::GraphicsPath grPath;
for (std::list<CHAT>::iterator it = chatList_.begin(); it != chatList_.end(); ++it) {
const Gdiplus::Font &selFont = it->bMultiLine ? (it->bSmall ? fontMultiSmall : fontMulti) : (it->bSmall ? fontSmall : font);
const Gdiplus::Font &selFontEmoji = it->bMultiLine ? (it->bSmall ? fontMultiEmojiSmall : fontMultiEmoji) : (it->bSmall ? fontEmojiSmall : fontEmoji);
Gdiplus::REAL selFontEm = it->bSmall ? fontEmSmall : fontEm;
const Gdiplus::FontFamily &selFontFamily = it->bMultiLine ? fontFamilyMulti : fontFamily;
const Gdiplus::FontFamily &selFontFamilyEmoji = it->bMultiLine ? fontFamilyMultiEmoji : fontFamilyEmoji;
if (currentWindowWidth_ < 0) {
// 実際の描画サイズを計測
Gdiplus::RectF rcDraw;
if (MeasureString(g, it->text, selFont, selFontEmoji, selFontEm, Gdiplus::PointF(0, 0), &rcDraw)) {
it->currentDrawWidth = (int)rcDraw.Width;
it->currentDrawHeight = (int)rcDraw.Height;
}
}
// まだ表示タイミングに達しないコメントは無視
if (DWORD_MSB(rts_ - it->pts)) {
continue;
}
// ウィンドウ下にはみ出すコメントは表示ライン行間に移す
// それでもはみ出すコメントは無視
double actLine = it->line >= actLineCount ? (it->line - actLineCount) + 0.5 : it->line;
if (actLine < 0 || actLineCount <= actLine || lineDrawCount_ <= actLine) {
continue;
}
Gdiplus::ARGB color = Gdiplus::Color::MakeARGB(it->colorA, it->colorR, it->colorG, it->colorB);
Gdiplus::Color foreColor(color | Gdiplus::Color::AlphaMask);
Gdiplus::Color shadowColor(it->shadowColorR, it->shadowColorG, it->shadowColorB);
Gdiplus::Color backColor1(Gdiplus::Color(color).GetA(), shadowColor.GetR(), shadowColor.GetG(), shadowColor.GetB());
Gdiplus::Color backColor2(bAntiAlias_ ? color : backColor1.GetValue());
bool bOpaque = backColor1.GetA() != 0;
int entireDrawWith = it->currentDrawWidth + (int)shadowOffset + 3;
int entireDrawHeight = it->currentDrawHeight + (int)shadowOffset + 3;
std::list<TEXTURE>::iterator jt = textureList_.end();
if (bUseTexture_) {
bool bCreateTexture = true;
// 描画高さがテクスチャの最大高さに納まらないならテクスチャをすべて作り直す
if (textureList_.empty() || entireDrawHeight > currentTextureHeight_) {
// 複数行コメントはテクスチャを作らない
if (it->bMultiLine) {
bCreateTexture = false;
} else {
currentTextureHeight_ = entireDrawHeight;
textureList_.clear();
}
}
// テクスチャを探す
jt = textureList_.begin();