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RTS.cpp
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RTS.cpp
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/*
* (C) 2003-2006 Gabest
* (C) 2006-2022 see Authors.txt
*
* This file is part of MPC-HC.
*
* MPC-HC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* MPC-HC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "stdafx.h"
#include <cmath>
#include <intrin.h>
#include <algorithm>
#include "ColorConvTable.h"
#include "RTS.h"
#include "../DSUtil/PathUtils.h"
#include <ppl.h>
#include "../filters/renderer/VideoRenderers/RenderersSettings.h"
// WARNING: this isn't very thread safe, use only one RTS a time. We should use TLS in future.
static HDC g_hDC;
static int g_hDC_refcnt = 0;
static long revcolor(long c)
{
return ((c & 0xff0000) >> 16) + (c & 0xff00) + ((c & 0xff) << 16);
}
//////////////////////////////////////////////////////////////////////////////////////////////
void alpha_mask_deleter::operator()(CAlphaMask* ptr) const noexcept
{
m_alphaMaskPool.emplace_front(std::move(*ptr));
std::default_delete<CAlphaMask>()(ptr);
if (m_alphaMaskPool.size() > 10) {
m_alphaMaskPool.pop_back();
}
}
// CMyFont
CMyFont::CMyFont(const STSStyle& style)
{
LOGFONT lf;
ZeroMemory(&lf, sizeof(lf));
lf <<= style;
lf.lfHeight = (LONG)(style.fontSize + 0.5);
lf.lfOutPrecision = OUT_TT_PRECIS;
lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
lf.lfQuality = ANTIALIASED_QUALITY;
lf.lfPitchAndFamily = DEFAULT_PITCH | FF_DONTCARE;
if (lf.lfCharSet == 0)
lf.lfCharSet = DEFAULT_CHARSET;
if (!CreateFontIndirect(&lf)) {
_tcscpy_s(lf.lfFaceName, _T("Calibri"));
VERIFY(CreateFontIndirect(&lf));
}
HFONT hOldFont = SelectFont(g_hDC, *this);
TEXTMETRIC tm;
GetTextMetrics(g_hDC, &tm);
m_ascent = ((tm.tmAscent + 4) >> 3);
m_descent = ((tm.tmDescent + 4) >> 3);
SelectFont(g_hDC, hOldFont);
}
// CWord
CWord::CWord(const STSStyle& style, CStringW str, int ktype, int kstart, int kend, double scalex, double scaley,
RenderingCaches& renderingCaches)
: m_fDrawn(false)
, m_p(INT_MAX, INT_MAX)
, m_renderingCaches(renderingCaches)
, m_scalex(scalex)
, m_scaley(scaley)
, m_str(str)
, m_fWhiteSpaceChar(false)
, m_fLineBreak(false)
, m_style(style)
, m_pOpaqueBox(nullptr)
, m_ktype(ktype)
, m_kstart(kstart)
, m_kend(kend)
, m_width(0)
, m_ascent(0)
, m_descent(0)
{
if (str.IsEmpty()) {
m_fWhiteSpaceChar = m_fLineBreak = true;
}
}
CWord::~CWord()
{
delete m_pOpaqueBox;
}
bool CWord::Append(CWord* w)
{
if (m_style != w->m_style
|| m_fLineBreak || w->m_fLineBreak
|| w->m_kstart != w->m_kend || m_ktype != w->m_ktype) {
return false;
}
m_fWhiteSpaceChar = m_fWhiteSpaceChar && w->m_fWhiteSpaceChar;
m_str += w->m_str;
m_width += w->m_width;
m_fDrawn = false;
m_p = CPoint(INT_MAX, INT_MAX);
return true;
}
void CWord::Paint(const CPoint& p, const CPoint& org)
{
if (!m_str) {
return;
}
COverlayKey overlayKey(this, p, org);
if (m_renderingCaches.overlayCache.Lookup(overlayKey, m_pOverlayData)) {
m_fDrawn = m_renderingCaches.outlineCache.Lookup(overlayKey, m_pOutlineData);
if (m_style.borderStyle == 1) {
if (m_style.outlineWidthX > 0.0 || m_style.shadowDepthX > 0.0 || m_style.outlineWidthY > 0.0 || m_style.shadowDepthY > 0.0) {
VERIFY(CreateOpaqueBox());
}
}
} else {
if (!m_fDrawn) {
if (m_renderingCaches.outlineCache.Lookup(overlayKey, m_pOutlineData)) {
if (m_style.borderStyle == 1) {
if (m_style.outlineWidthX > 0.0 || m_style.shadowDepthX > 0.0 || m_style.outlineWidthY > 0.0 || m_style.shadowDepthY > 0.0) {
VERIFY(CreateOpaqueBox());
}
}
} else {
if (!CreatePath()) {
return;
}
Transform(CPoint((org.x - p.x) * 8, (org.y - p.y) * 8));
if (!ScanConvert()) {
return;
}
if (m_style.borderStyle == 0 && (m_style.outlineWidthX + m_style.outlineWidthY > 0)) {
int rx = std::max<int>(0, std::lround(m_style.outlineWidthX));
int ry = std::max<int>(0, std::lround(m_style.outlineWidthY));
if (!m_pEllipse || m_pEllipse->GetXRadius() != rx || m_pEllipse->GetYRadius() != ry) {
CEllipseKey ellipseKey(rx, ry);
if (!m_renderingCaches.ellipseCache.Lookup(ellipseKey, m_pEllipse)) {
m_pEllipse = std::make_shared<CEllipse>(rx, ry);
m_renderingCaches.ellipseCache.SetAt(ellipseKey, m_pEllipse);
}
}
if (!CreateWidenedRegion(rx, ry)) {
return;
}
} else if (m_style.borderStyle == 1) {
if (m_style.outlineWidthX > 0.0 || m_style.shadowDepthX > 0.0 || m_style.outlineWidthY > 0.0 || m_style.shadowDepthY > 0.0) {
VERIFY(CreateOpaqueBox());
}
}
m_renderingCaches.outlineCache.SetAt(overlayKey, m_pOutlineData);
}
m_fDrawn = true;
if (!Rasterize(p.x & 7, p.y & 7, m_style.fBlur, m_style.fGaussianBlur)) {
return;
}
m_renderingCaches.overlayCache.SetAt(overlayKey, m_pOverlayData);
} else if ((m_p.x & 7) != (p.x & 7) || (m_p.y & 7) != (p.y & 7)) {
Rasterize(p.x & 7, p.y & 7, m_style.fBlur, m_style.fGaussianBlur);
m_renderingCaches.overlayCache.SetAt(overlayKey, m_pOverlayData);
}
}
m_p = p;
if (m_pOpaqueBox) {
m_pOpaqueBox->Paint(p, org);
}
}
void CWord::Transform(CPoint org)
{
#if defined(_M_IX86_FP) && _M_IX86_FP < 2
if (!m_bUseSSE2) {
Transform_C(org);
} else
#endif
{
Transform_SSE2(org);
}
}
bool CWord::CreateOpaqueBox()
{
if (m_pOpaqueBox) {
return true;
}
STSStyle style = m_style;
style.borderStyle = 0;
// We don't want to apply the outline and the scaling twice
style.outlineWidthX = style.outlineWidthY = 0.0;
if (m_str.GetLength() > 2) {
// some SSA subs use an opaque box to draw text backgrounds for translated signs
// these use single character with a large fontscale
// don't adjust scale in that case
style.fontScaleX = style.fontScaleY = 100.0;
}
style.colors[0] = m_style.colors[2];
style.alpha[0] = m_style.alpha[2];
int w = std::lround(m_style.outlineWidthX);
int h = std::lround(m_style.outlineWidthY);
// Convert to pixels rounding to nearest
CStringW str;
str.Format(L"m %d %d l %d %d %d %d %d %d",
-(w + 4) / 8, -(h + 4) / 8,
(m_width + w + 4) / 8, -(h + 4) / 8,
(m_width + w + 4) / 8, (m_ascent + m_descent + h + 4) / 8,
-(w + 4) / 8, (m_ascent + m_descent + h + 4) / 8);
try {
m_pOpaqueBox = DEBUG_NEW CPolygon(style, str, 0, 0, 0, 1.0, 1.0, 0, m_renderingCaches);
} catch (CMemoryException* e) {
e->Delete();
m_pOpaqueBox = nullptr;
}
return !!m_pOpaqueBox;
}
void CWord::Transform_C(const CPoint& org)
{
const double scalex = m_style.fontScaleX / 100.0;
const double scaley = m_style.fontScaleY / 100.0;
const double xzoomf = m_scalex * 20000.0;
const double yzoomf = m_scaley * 20000.0;
const double caz = cos((M_PI / 180.0) * m_style.fontAngleZ);
const double saz = sin((M_PI / 180.0) * m_style.fontAngleZ);
const double cax = cos((M_PI / 180.0) * m_style.fontAngleX);
const double sax = sin((M_PI / 180.0) * m_style.fontAngleX);
const double cay = cos((M_PI / 180.0) * m_style.fontAngleY);
const double say = sin((M_PI / 180.0) * m_style.fontAngleY);
double dOrgX = static_cast<double>(org.x), dOrgY = static_cast<double>(org.y);
for (ptrdiff_t i = 0; i < mPathPoints; i++) {
double x, y, z, xx, yy, zz;
x = mpPathPoints[i].x;
y = mpPathPoints[i].y;
z = 0;
const double dPPx = m_style.fontShiftX * y + x;
y = scaley * (m_style.fontShiftY * x + y) - dOrgY;
x = scalex * dPPx - dOrgX;
xx = x * caz + y * saz;
yy = -(x * saz - y * caz);
zz = z;
x = xx;
y = yy * cax + zz * sax;
z = yy * sax - zz * cax;
xx = x * cay + z * say;
yy = y;
zz = x * say - z * cay;
x = xx * xzoomf / std::max((zz + xzoomf), 1000.0);
y = yy * yzoomf / std::max((zz + yzoomf), 1000.0);
// round to integer
mpPathPoints[i].x = std::lround(x) + org.x;
mpPathPoints[i].y = std::lround(y) + org.y;
}
}
void CWord::Transform_SSE2(const CPoint& org)
{
// SSE code
// speed up ~1.5-1.7x
const __m128 __xshift = _mm_set_ps1((float)m_style.fontShiftX);
const __m128 __yshift = _mm_set_ps1((float)m_style.fontShiftY);
const __m128 __xorg = _mm_set_ps1((float)org.x);
const __m128 __yorg = _mm_set_ps1((float)org.y);
const __m128 __xscale = _mm_set_ps1((float)(m_style.fontScaleX / 100.0));
const __m128 __yscale = _mm_set_ps1((float)(m_style.fontScaleY / 100.0));
const __m128 __xzoomf = _mm_set_ps1((float)(m_scalex * 20000.0));
const __m128 __yzoomf = _mm_set_ps1((float)(m_scaley * 20000.0));
const __m128 __caz = _mm_set_ps1((float)cos((M_PI / 180.0) * m_style.fontAngleZ));
const __m128 __saz = _mm_set_ps1((float)sin((M_PI / 180.0) * m_style.fontAngleZ));
const __m128 __cax = _mm_set_ps1((float)cos((M_PI / 180.0) * m_style.fontAngleX));
const __m128 __sax = _mm_set_ps1((float)sin((M_PI / 180.0) * m_style.fontAngleX));
const __m128 __cay = _mm_set_ps1((float)cos((M_PI / 180.0) * m_style.fontAngleY));
const __m128 __say = _mm_set_ps1((float)sin((M_PI / 180.0) * m_style.fontAngleY));
const __m128 __1000 = _mm_set_ps1(1000.0f);
int mPathPointsD4 = mPathPoints / 4;
int mPathPointsM4 = mPathPoints % 4;
for (ptrdiff_t i = 0; i < mPathPointsD4 + 1; i++) {
__m128 __pointx, __pointy, __tmpx, __tmpy;
// we can't use load .-.
if (i != mPathPointsD4) {
__pointx = _mm_set_ps((float)mpPathPoints[4 * i + 0].x, (float)mpPathPoints[4 * i + 1].x, (float)mpPathPoints[4 * i + 2].x, (float)mpPathPoints[4 * i + 3].x);
__pointy = _mm_set_ps((float)mpPathPoints[4 * i + 0].y, (float)mpPathPoints[4 * i + 1].y, (float)mpPathPoints[4 * i + 2].y, (float)mpPathPoints[4 * i + 3].y);
} else { // last cycle
switch (mPathPointsM4) {
default:
case 0:
continue;
case 1:
__pointx = _mm_set_ps((float)mpPathPoints[4 * i + 0].x, 0, 0, 0);
__pointy = _mm_set_ps((float)mpPathPoints[4 * i + 0].y, 0, 0, 0);
break;
case 2:
__pointx = _mm_set_ps((float)mpPathPoints[4 * i + 0].x, (float)mpPathPoints[4 * i + 1].x, 0, 0);
__pointy = _mm_set_ps((float)mpPathPoints[4 * i + 0].y, (float)mpPathPoints[4 * i + 1].y, 0, 0);
break;
case 3:
__pointx = _mm_set_ps((float)mpPathPoints[4 * i + 0].x, (float)mpPathPoints[4 * i + 1].x, (float)mpPathPoints[4 * i + 2].x, 0);
__pointy = _mm_set_ps((float)mpPathPoints[4 * i + 0].y, (float)mpPathPoints[4 * i + 1].y, (float)mpPathPoints[4 * i + 2].y, 0);
break;
}
}
// scale and shift
__tmpy = __pointx; // save a copy for calculating __pointy later
if (m_style.fontShiftX != 0) {
__tmpx = _mm_mul_ps(__xshift, __pointy);
__pointx = _mm_add_ps(__pointx, __tmpx);
}
__pointx = _mm_mul_ps(__pointx, __xscale);
__pointx = _mm_sub_ps(__pointx, __xorg);
if (m_style.fontShiftY != 0) {
__tmpy = _mm_mul_ps(__yshift, __tmpy); // __tmpy is a copy of __pointx here, because it may otherwise be modified
__pointy = _mm_add_ps(__pointy, __tmpy);
}
__pointy = _mm_mul_ps(__pointy, __yscale);
__pointy = _mm_sub_ps(__pointy, __yorg);
// rotate
__m128 __xx, __yy;
__m128 __zz = _mm_setzero_ps();
// xx = x * caz + y * saz
__tmpx = _mm_mul_ps(__pointx, __caz); // x * caz
__tmpy = _mm_mul_ps(__pointy, __saz); // y * saz
__xx = _mm_add_ps(__tmpx, __tmpy); // xx = x * caz + y * saz;
// yy = -(x * saz - y * caz)
__tmpx = _mm_mul_ps(__pointx, __saz); // x * saz
__tmpy = _mm_mul_ps(__pointy, __caz); // y * caz
__yy = _mm_sub_ps(__tmpy, __tmpx); // yy = -(x * saz - y * caz) = y * caz - x * saz
__pointx = __xx; // x = xx
// y = yy * cax + zz * sax
__tmpx = _mm_mul_ps(__zz, __sax); // zz * sax
__tmpy = _mm_mul_ps(__yy, __cax); // yy * cax
__pointy = _mm_add_ps(__tmpy, __tmpx); // y = yy * cax + zz * sax
// z = yy * sax - zz * cax
__tmpx = _mm_mul_ps(__zz, __cax); // zz * cax
__tmpy = _mm_mul_ps(__yy, __sax); // yy * sax
__zz = _mm_sub_ps(__tmpy, __tmpx); // z = yy * sax - zz * cax
// xx = x * cay + z * say
__tmpx = _mm_mul_ps(__pointx, __cay); // x * cay
__tmpy = _mm_mul_ps(__zz, __say); // z * say
__xx = _mm_add_ps(__tmpx, __tmpy); // xx = x * cay + z * say
__yy = __pointy; // yy = y
// zz = x * say - z * cay
__tmpx = _mm_mul_ps(__pointx, __say); // x * say
__zz = _mm_mul_ps(__zz, __cay); // z * cay
__zz = _mm_sub_ps(__tmpx, __zz); // zz = x * say - z * cay
// x = xx * xzoomf / std::max((zz + xzoomf), 1000.0);
// y = yy * yzoomf / std::max((zz + yzoomf), 1000.0);
__m128 __tmpzz = _mm_add_ps(__zz, __xzoomf); // zz + xzoomf
__xx = _mm_mul_ps(__xx, __xzoomf); // xx * xzoomf
__pointx = _mm_div_ps(__xx, _mm_max_ps(__tmpzz, __1000)); // x = (xx * xzoomf) / std::max((zz + xzoomf), 1000.0)
__tmpzz = _mm_add_ps(__zz, __yzoomf); // zz + yzoomf
__yy = _mm_mul_ps(__yy, __yzoomf); // yy * yzoomf
__pointy = _mm_div_ps(__yy, _mm_max_ps(__tmpzz, __1000)); // y = yy * yzoomf / std::max((zz + yzoomf), 1000.0);
__pointx = _mm_add_ps(__pointx, __xorg); // x = x + org.x
__pointy = _mm_add_ps(__pointy, __yorg); // y = y + org.y
// round to integer
__m128i __pointxRounded = _mm_cvtps_epi32(__pointx);
__m128i __pointyRounded = _mm_cvtps_epi32(__pointy);
if (i == mPathPointsD4) { // last cycle
for (int k = 0; k < mPathPointsM4; k++) {
mpPathPoints[i * 4 + k].x = __pointxRounded.m128i_i32[3 - k];
mpPathPoints[i * 4 + k].y = __pointyRounded.m128i_i32[3 - k];
}
} else {
for (int k = 0; k < 4; k++) {
mpPathPoints[i * 4 + k].x = __pointxRounded.m128i_i32[3 - k];
mpPathPoints[i * 4 + k].y = __pointyRounded.m128i_i32[3 - k];
}
}
}
}
// CText
CText::CText(const STSStyle& style, CStringW str, int ktype, int kstart, int kend, double scalex, double scaley,
RenderingCaches& renderingCaches)
: CWord(style, str, ktype, kstart, kend, scalex, scaley, renderingCaches)
{
if (m_str == L" ") {
m_fWhiteSpaceChar = true;
}
CTextDimsKey textDimsKey(m_str, m_style);
CTextDims textDims;
if (!renderingCaches.textDimsCache.Lookup(textDimsKey, textDims)) {
CMyFont font(m_style);
m_ascent = font.m_ascent;
m_descent = font.m_descent;
HFONT hOldFont = SelectFont(g_hDC, font);
if (m_style.fontSpacing) {
for (LPCWSTR s = m_str; *s; s++) {
CSize extent;
if (!GetTextExtentPoint32W(g_hDC, s, 1, &extent)) {
SelectFont(g_hDC, hOldFont);
ASSERT(0);
return;
}
m_width += extent.cx + (int)m_style.fontSpacing;
}
// m_width -= (int)m_style.fontSpacing; // TODO: subtract only at the end of the line
} else {
CSize extent;
if (!GetTextExtentPoint32W(g_hDC, m_str, str.GetLength(), &extent)) {
SelectFont(g_hDC, hOldFont);
ASSERT(0);
return;
}
m_width += extent.cx;
}
SelectFont(g_hDC, hOldFont);
textDims.ascent = m_ascent;
textDims.descent = m_descent;
textDims.width = m_width;
renderingCaches.textDimsCache.SetAt(textDimsKey, textDims);
} else {
m_ascent = textDims.ascent;
m_descent = textDims.descent;
m_width = textDims.width;
}
m_ascent = (int)(m_style.fontScaleY / 100 * m_ascent);
m_descent = (int)(m_style.fontScaleY / 100 * m_descent);
m_width = (int)(m_style.fontScaleX / 100 * m_width + 4) >> 3;
}
CWord* CText::Copy()
{
return DEBUG_NEW CText(*this);
}
bool CText::Append(CWord* w)
{
return (dynamic_cast<CText*>(w) && CWord::Append(w));
}
bool CText::CreatePath()
{
CMyFont font(m_style);
HFONT hOldFont = SelectFont(g_hDC, font);
if (m_style.fontSpacing) {
LONG cx;
auto getExtent = [&](LPCWSTR s) {
CSize extent;
if (!GetTextExtentPoint32W(g_hDC, s, 1, &extent)) {
SelectFont(g_hDC, hOldFont);
ASSERT(0);
return false;
}
cx = extent.cx;
return true;
};
int width = 0;
bool bFirstPath = true;
bool failedPath = false;
int ftWidth = width;
for (LPCWSTR s = m_str; *s; s++) {
if (!getExtent(s)) {
return false;
}
PartialBeginPath(g_hDC, bFirstPath);
bFirstPath = false;
TextOutW(g_hDC, 0, 0, s, 1);
int mp = mPathPoints;
PartialEndPath(g_hDC, width, 0);
if (mp == mPathPoints && L' ' != s[0]) { //failed to add points, we will try again with FreeType as emulator
failedPath=true;
break;
}
#if 0
GetPathFreeType(g_hDC, false, s[0], m_style.fontSize, width+ cx + (int)m_style.fontSpacing, 0);
GetPathFreeType(g_hDC, false, s[0], m_style.fontSize, width, m_style.fontSize*2);
#endif
width += cx + (int)m_style.fontSpacing;
}
if (failedPath) { //try freetype
width = ftWidth;
bFirstPath = true;
for (LPCWSTR s = m_str; *s; s++) {
if (!getExtent(s)) {
return false;
}
GetPathFreeType(g_hDC, bFirstPath, m_style.fontName, s[0], m_style.fontSize, width, 0);
bFirstPath = false;
width += cx + (int)m_style.fontSpacing;
}
}
} else {
CSize extent;
if (!GetTextExtentPoint32W(g_hDC, m_str, m_str.GetLength(), &extent)) {
SelectFont(g_hDC, hOldFont);
ASSERT(0);
return false;
}
BeginPath(g_hDC);
TextOutW(g_hDC, 0, 0, m_str, m_str.GetLength());
EndPath(g_hDC);
}
SelectFont(g_hDC, hOldFont);
return true;
}
// CPolygon
CPolygon::CPolygon(const STSStyle& style, CStringW str, int ktype, int kstart, int kend, double scalex, double scaley, int baseline,
RenderingCaches& renderingCaches)
: CWord(style, str, ktype, kstart, kend, scalex, scaley, renderingCaches)
, m_baseline(baseline)
{
ParseStr();
}
CPolygon::CPolygon(CPolygon& src)
: CWord(src.m_style, src.m_str, src.m_ktype, src.m_kstart, src.m_kend, src.m_scalex, src.m_scaley, src.m_renderingCaches)
, m_baseline(src.m_baseline)
, m_pPolygonPath(src.m_pPolygonPath)
{
m_width = src.m_width;
m_ascent = src.m_ascent;
m_descent = src.m_descent;
}
CPolygon::~CPolygon()
{
}
CWord* CPolygon::Copy()
{
return (DEBUG_NEW CPolygon(*this));
}
bool CPolygon::Append(CWord* w)
{
CPolygon* p = dynamic_cast<CPolygon*>(w);
if (!p) {
return false;
}
// TODO
return false;
//return true;
}
bool CPolygon::GetPOINT(LPCWSTR& str, POINT& point) const
{
LPWSTR xEnd = nullptr;
LPWSTR yEnd = nullptr;
point.x = std::lround(wcstod(str, &xEnd) * m_scalex) * 64;
if (xEnd <= str) {
return false;
}
point.y = std::lround(wcstod(xEnd, &yEnd) * m_scaley) * 64;
bool ret = yEnd > xEnd;
str = yEnd;
return ret;
}
bool CPolygon::ParseStr()
{
if (m_pPolygonPath && !m_pPolygonPath->typesOrg.IsEmpty()) {
return true;
}
CPolygonPathKey polygonPathKey(m_str, m_scalex, m_scaley);
if (!m_renderingCaches.polygonCache.Lookup(polygonPathKey, m_pPolygonPath)) {
m_pPolygonPath = std::make_shared<CPolygonPath>();
CPoint p;
bool bFoundMove = false;
size_t i, j, lastSplineStart = SIZE_T_ERROR;
auto isValidAction = [](const WCHAR c) {
return c == L'm' || c == L'n' || c == L'l' || c == L'b'
|| c == L's' || c == L'p' || c == L'c';
};
for (LPCWSTR str = m_str; *str;) {
// Trim any leading invalid characters and whitespace
while (*str && !isValidAction(*str)) {
str++;
}
const WCHAR c = *str;
if (*str) {
do {
str++;
} while (isValidAction(*str));
}
switch (c) {
case L'm':
if (!bFoundMove) {
if (m_pPolygonPath->typesOrg.GetCount() > 0) {
// move command not first so we abort
m_pPolygonPath = nullptr;
return false;
}
bFoundMove = true;
}
while (GetPOINT(str, p)) {
m_pPolygonPath->typesOrg.Add(PT_MOVETO);
m_pPolygonPath->pointsOrg.Add(p);
}
break;
case L'n':
while (GetPOINT(str, p)) {
m_pPolygonPath->typesOrg.Add(PT_MOVETONC);
m_pPolygonPath->pointsOrg.Add(p);
}
break;
case L'l':
if (m_pPolygonPath->pointsOrg.GetCount() < 1) {
break;
}
while (GetPOINT(str, p)) {
m_pPolygonPath->typesOrg.Add(PT_LINETO);
m_pPolygonPath->pointsOrg.Add(p);
}
break;
case L'b':
j = m_pPolygonPath->typesOrg.GetCount();
if (j < 1) {
break;
}
while (GetPOINT(str, p)) {
m_pPolygonPath->typesOrg.Add(PT_BEZIERTO);
m_pPolygonPath->pointsOrg.Add(p);
++j;
}
j = m_pPolygonPath->typesOrg.GetCount() - ((m_pPolygonPath->typesOrg.GetCount() - j) % 3);
m_pPolygonPath->typesOrg.SetCount(j);
m_pPolygonPath->pointsOrg.SetCount(j);
break;
case L's':
if (m_pPolygonPath->pointsOrg.GetCount() < 1) {
break;
}
j = lastSplineStart = m_pPolygonPath->typesOrg.GetCount();
i = 3;
while (i-- && GetPOINT(str, p)) {
m_pPolygonPath->typesOrg.Add(PT_BSPLINETO);
m_pPolygonPath->pointsOrg.Add(p);
++j;
}
if (m_pPolygonPath->typesOrg.GetCount() - lastSplineStart < 3) {
m_pPolygonPath->typesOrg.SetCount(lastSplineStart);
m_pPolygonPath->pointsOrg.SetCount(lastSplineStart);
lastSplineStart = SIZE_T_ERROR;
}
// no break
case L'p':
if (m_pPolygonPath->pointsOrg.GetCount() < 3) {
break;
}
while (GetPOINT(str, p)) {
m_pPolygonPath->typesOrg.Add(PT_BSPLINEPATCHTO);
m_pPolygonPath->pointsOrg.Add(p);
}
break;
case L'c':
if (lastSplineStart != SIZE_T_ERROR && lastSplineStart > 0) {
m_pPolygonPath->typesOrg.Add(PT_BSPLINEPATCHTO);
m_pPolygonPath->typesOrg.Add(PT_BSPLINEPATCHTO);
m_pPolygonPath->typesOrg.Add(PT_BSPLINEPATCHTO);
p = m_pPolygonPath->pointsOrg[lastSplineStart - 1]; // we need p for temp storage, because operator [] will return a reference to CPoint and Add() may reallocate its internal buffer (this is true for MFC 7.0 but not for 6.0, hehe)
m_pPolygonPath->pointsOrg.Add(p);
p = m_pPolygonPath->pointsOrg[lastSplineStart];
m_pPolygonPath->pointsOrg.Add(p);
p = m_pPolygonPath->pointsOrg[lastSplineStart + 1];
m_pPolygonPath->pointsOrg.Add(p);
lastSplineStart = SIZE_T_ERROR;
}
break;
default:
break;
}
}
if (!bFoundMove) {
// move command not found so we abort
m_pPolygonPath = nullptr;
return false;
}
int minx = INT_MAX, miny = INT_MAX, maxx = INT_MIN, maxy = INT_MIN;
for (size_t m = 0; m < m_pPolygonPath->typesOrg.GetCount(); m++) {
if (minx > m_pPolygonPath->pointsOrg[m].x) {
minx = m_pPolygonPath->pointsOrg[m].x;
}
if (miny > m_pPolygonPath->pointsOrg[m].y) {
miny = m_pPolygonPath->pointsOrg[m].y;
}
if (maxx < m_pPolygonPath->pointsOrg[m].x) {
maxx = m_pPolygonPath->pointsOrg[m].x;
}
if (maxy < m_pPolygonPath->pointsOrg[m].y) {
maxy = m_pPolygonPath->pointsOrg[m].y;
}
}
m_pPolygonPath->size.SetSize(std::max(maxx - minx, 0), std::max(maxy - miny, 0));
m_renderingCaches.polygonCache.SetAt(polygonPathKey, m_pPolygonPath);
}
m_width = m_pPolygonPath->size.cx;
m_ascent = m_pPolygonPath->size.cy;
int baseline = std::lround(m_scaley * m_baseline) * 64;
m_descent = baseline;
m_ascent -= baseline;
m_width = ((int)(m_style.fontScaleX / 100.0 * m_width) + 4) >> 3;
m_ascent = ((int)(m_style.fontScaleY / 100.0 * m_ascent) + 4) >> 3;
m_descent = ((int)(m_style.fontScaleY / 100.0 * m_descent) + 4) >> 3;
return true;
}
bool CPolygon::CreatePath()
{
int len = m_pPolygonPath ? (int)m_pPolygonPath->typesOrg.GetCount() : 0;
if (len == 0) {
return false;
}
if (mPathPoints != len) {
BYTE* pNewPathTypes = (BYTE*)realloc(mpPathTypes, len * sizeof(BYTE));
if (!pNewPathTypes) {
return false;
}
mpPathTypes = pNewPathTypes;
POINT* pNewPathPoints = (POINT*)realloc(mpPathPoints, len * sizeof(POINT));
if (!pNewPathPoints) {
return false;
}
mpPathPoints = pNewPathPoints;
mPathPoints = len;
}
memcpy(mpPathTypes, m_pPolygonPath->typesOrg.GetData(), len * sizeof(BYTE));
memcpy(mpPathPoints, m_pPolygonPath->pointsOrg.GetData(), len * sizeof(POINT));
return true;
}
// CClipper
CClipper::CClipper(CStringW str, const CSize& size, double scalex, double scaley, bool inverse, const CPoint& cpOffset,
RenderingCaches& renderingCaches)
: CPolygon(STSStyle(), str, 0, 0, 0, scalex, scaley, 0, renderingCaches)
, m_size(size)
, m_inverse(inverse)
, m_cpOffset(cpOffset)
, m_pAlphaMask(nullptr)
, m_effectType(-1)
{
}
CAlphaMaskSharedPtr CClipper::GetAlphaMask(const std::shared_ptr<CClipper>& clipper)
{
if (m_pAlphaMask) {
return m_pAlphaMask;
}
ASSERT(this == clipper.get());
if (m_size.cx <= 0 || m_size.cy <= 0) {
return nullptr;
}
CClipperKey key(clipper);
if (m_renderingCaches.alphaMaskCache.Lookup(key, m_pAlphaMask)) {
return m_pAlphaMask;
}
Paint(CPoint(0, 0), CPoint(0, 0));
if (!m_pOverlayData) {
return nullptr;
}
int w = m_pOverlayData->mOverlayWidth, h = m_pOverlayData->mOverlayHeight;
int x = (m_pOverlayData->mOffsetX + m_cpOffset.x + 4) >> 3, y = (m_pOverlayData->mOffsetY + m_cpOffset.y + 4) >> 3;
int xo = 0, yo = 0;
if (x < 0) {
xo = -x;
w -= -x;
x = 0;
}
if (y < 0) {
yo = -y;
h -= -y;
y = 0;
}
if (x + w > m_size.cx) {
w = m_size.cx - x;
}
if (y + h > m_size.cy) {
h = m_size.cy - y;
}
if (w <= 0 || h <= 0) {
return nullptr;
}
const size_t alphaMaskSize = size_t(m_size.cx) * m_size.cy;
try {
m_pAlphaMask = CAlphaMask::Alloc(m_renderingCaches.alphaMaskPool, alphaMaskSize);
} catch (CMemoryException* e) {
e->Delete();
m_pAlphaMask = nullptr;
return nullptr;
}
BYTE* pAlphaMask = m_pAlphaMask->get();
memset(pAlphaMask, (m_inverse ? 0x40 : 0), alphaMaskSize);
const BYTE* src = m_pOverlayData->mpOverlayBufferBody + m_pOverlayData->mOverlayPitch * yo + xo;
BYTE* dst = pAlphaMask + m_size.cx * y + x;
if (m_inverse) {
for (ptrdiff_t i = 0; i < h; ++i) {
for (ptrdiff_t wt = 0; wt < w; ++wt) {
dst[wt] = 0x40 - src[wt];
}
src += m_pOverlayData->mOverlayPitch;
dst += m_size.cx;
}
} else {
for (ptrdiff_t i = 0; i < h; ++i) {
memcpy(dst, src, w * sizeof(BYTE));
src += m_pOverlayData->mOverlayPitch;
dst += m_size.cx;
}
}
if (m_effectType == EF_SCROLL) {
int height = m_effect.param[4];
int spd_w = m_size.cx, spd_h = m_size.cy;
int da = (64 << 8) / height;
int a = 0;
int k = m_effect.param[0] >> 3;
int l = k + height;
if (k < 0) {
a += -k * da;
k = 0;
}
if (l > spd_h) {
l = spd_h;
}
if (k < spd_h) {
BYTE* am = &pAlphaMask[k * spd_w];
ZeroMemory(pAlphaMask, am - pAlphaMask);
for (ptrdiff_t j = k; j < l; j++, a += da) {
for (ptrdiff_t i = 0; i < spd_w; i++, am++) {
*am = BYTE(((*am) * a) >> 14);
}
}
}
da = -(64 << 8) / height;
a = 0x40 << 8;
l = m_effect.param[1] >> 3;
k = l - height;
if (k < 0) {
a += -k * da;
k = 0;
}
if (l > spd_h) {
l = spd_h;
}
if (k < spd_h) {
BYTE* am = &pAlphaMask[k * spd_w];
int j = k;
for (; j < l; j++, a += da) {
for (ptrdiff_t i = 0; i < spd_w; i++, am++) {
*am = BYTE(((*am) * a) >> 14);
}
}
ZeroMemory(am, (spd_h - j)*spd_w);
}
} else if (m_effectType == EF_BANNER) {
int width = m_effect.param[2];
int spd_w = m_size.cx, spd_h = m_size.cy;
int da = (64 << 8) / width;
BYTE* am = pAlphaMask;
for (ptrdiff_t j = 0; j < spd_h; j++, am += spd_w) {
int a = 0;
int k = std::min(width, spd_w);
for (ptrdiff_t i = 0; i < k; i++, a += da) {
am[i] = BYTE((am[i] * a) >> 14);
}
a = 0x40 << 8;
k = spd_w - width;
if (k < 0) {
a -= -k * da;