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lightlyshaders.cpp
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lightlyshaders.cpp
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/*
* Copyright © 2015 Robert Metsäranta <therealestrob@gmail.com>
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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; see the file COPYING. if not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "dbus.h"
#include "lightlyshaders.h"
#include <QPainter>
#include <QPainterPath>
#include <QImage>
#include <QFile>
#include <QTextStream>
#include <QStandardPaths>
#include <kwinglplatform.h>
#include <kwinglutils.h>
#include <QMatrix4x4>
#include <KConfigGroup>
#include <QtDBus/QDBusConnection>
#include <QRegularExpression>
namespace KWin {
#ifndef KWIN_PLUGIN_FACTORY_NAME
KWIN_EFFECT_FACTORY_SUPPORTED_ENABLED(LightlyShadersFactory, LightlyShadersEffect, "lightlyshaders.json", return LightlyShadersEffect::supported();, return LightlyShadersEffect::enabledByDefault();)
#else
KWIN_EFFECT_FACTORY_SUPPORTED_ENABLED(LightlyShadersEffect, "lightlyshaders.json", return LightlyShadersEffect::supported();, return LightlyShadersEffect::enabledByDefault();)
#endif
LightlyShadersEffect::LightlyShadersEffect() : Effect(), m_shader(0)
{
new EffectAdaptor(this);
QDBusConnection::sessionBus().registerObject("/LightlyShaders", this);
for (int i = 0; i < NTex; ++i)
{
m_tex[i] = 0;
m_rect[i] = 0;
m_dark_rect[i] = 0;
}
reconfigure(ReconfigureAll);
QString shadersDir(QStringLiteral("kwin/shaders/1.10/"));
const qint64 version = kVersionNumber(1, 40);
if (GLPlatform::instance()->glslVersion() >= version)
shadersDir = QStringLiteral("kwin/shaders/1.40/");
const QString shader = QStandardPaths::locate(QStandardPaths::GenericDataLocation, shadersDir + QStringLiteral("lightlyshaders.frag"));
const QString diff_shader = QStandardPaths::locate(QStandardPaths::GenericDataLocation, shadersDir + QStringLiteral("lightlyshaders_diff.frag"));
QFile file_shader(shader);
QFile file_diff_shader(diff_shader);
if (!file_shader.open(QFile::ReadOnly) || !file_diff_shader.open(QFile::ReadOnly))
{
qDebug() << "LightlyShaders: no shaders found! Exiting...";
deleteLater();
return;
}
QByteArray frag = file_shader.readAll();
m_shader = ShaderManager::instance()->generateCustomShader(ShaderTrait::MapTexture, QByteArray(), frag);
file_shader.close();
QByteArray diff_frag = file_diff_shader.readAll();
m_diff_shader = ShaderManager::instance()->generateCustomShader(ShaderTrait::MapTexture, QByteArray(), diff_frag);
file_diff_shader.close();
if (m_shader->isValid() && m_diff_shader->isValid())
{
const int background_sampler = m_shader->uniformLocation("background_sampler");
const int shadow_sampler = m_shader->uniformLocation("shadow_sampler");
const int radius_sampler = m_shader->uniformLocation("radius_sampler");
const int sampler_size = m_shader->uniformLocation("sampler_size");
const int flip_shadow = m_shader->uniformLocation("flip_shadow");
ShaderManager::instance()->pushShader(m_shader);
m_shader->setUniform(flip_shadow, 4);
m_shader->setUniform(sampler_size, 3);
m_shader->setUniform(radius_sampler, 2);
m_shader->setUniform(shadow_sampler, 1);
m_shader->setUniform(background_sampler, 0);
ShaderManager::instance()->popShader();
const int shadow_sampler_diff = m_diff_shader->uniformLocation("shadow_sampler");
const int background_sampler_diff = m_diff_shader->uniformLocation("background_sampler");
const int corner_number_diff = m_diff_shader->uniformLocation("corner_number");
const int sampler_size_diff = m_diff_shader->uniformLocation("sampler_size");
ShaderManager::instance()->pushShader(m_diff_shader);
m_diff_shader->setUniform(sampler_size_diff, 3);
m_diff_shader->setUniform(corner_number_diff, 2);
m_diff_shader->setUniform(background_sampler_diff, 1);
m_diff_shader->setUniform(shadow_sampler_diff, 0);
ShaderManager::instance()->popShader();
const auto stackingOrder = effects->stackingOrder();
for (EffectWindow *window : stackingOrder) {
windowAdded(window);
}
connect(effects, &EffectsHandler::windowAdded, this, &LightlyShadersEffect::windowAdded);
connect(effects, &EffectsHandler::windowDeleted, this, &LightlyShadersEffect::windowDeleted);
connect(effects, &EffectsHandler::windowMaximizedStateChanged, this, &LightlyShadersEffect::windowMaximizedStateChanged);
}
else
qDebug() << "LightlyShaders: no valid shaders found! LightlyShaders will not work.";
}
LightlyShadersEffect::~LightlyShadersEffect()
{
if (m_shader)
delete m_shader;
if (m_diff_shader)
delete m_diff_shader;
for (int i = 0; i < NTex; ++i)
{
if (m_tex[i])
delete m_tex[i];
if (m_rect[i])
delete m_rect[i];
if (m_dark_rect[i])
delete m_dark_rect[i];
}
m_clip.clear();
m_diff.clear();
m_diff_update.clear();
}
void
LightlyShadersEffect::windowDeleted(EffectWindow *w)
{
m_managed.removeOne(w);
m_skipEffect.removeOne(w);
m_clip.remove(w);
m_diff.remove(w);
m_diff_update.remove(w);
}
static bool hasShadow(EffectWindow *w)
{
if(w->expandedGeometry().size() != w->frameGeometry().size())
return true;
return false;
}
void
LightlyShadersEffect::windowAdded(EffectWindow *w)
{
if (m_managed.contains(w)
|| w->windowType() == NET::OnScreenDisplay
|| w->windowType() == NET::Dock
|| w->windowType() == NET::Menu
|| w->windowType() == NET::DropdownMenu
|| w->windowType() == NET::Tooltip
|| w->windowType() == NET::ComboBox
|| w->windowType() == NET::Splash)
return;
// qDebug() << w->windowRole() << w->windowType() << w->windowClass();
if (!w->hasDecoration() && (w->windowClass().contains("plasma", Qt::CaseInsensitive)
|| w->windowClass().contains("krunner", Qt::CaseInsensitive)
|| w->windowClass().contains("latte-dock", Qt::CaseInsensitive)
|| w->windowClass().contains("lattedock", Qt::CaseInsensitive)
|| w->windowClass().contains("albert", Qt::CaseInsensitive)
|| w->windowClass().contains("ksplash", Qt::CaseInsensitive)
|| w->windowClass().contains("ksmserver", Qt::CaseInsensitive)
|| (w->windowClass().contains("reaper", Qt::CaseInsensitive) && !hasShadow(w))))
return;
if(w->windowClass().contains("jetbrains", Qt::CaseInsensitive) && w->caption().contains(QRegularExpression ("win[0-9]+")))
return;
if (w->windowClass().contains("plasma", Qt::CaseInsensitive) && !w->isNormalWindow() && !w->isDialog() && !w->isModal())
return;
if (w->isDesktop()
|| w->isFullScreen()
|| w->isPopupMenu()
|| w->isTooltip()
|| w->isSpecialWindow()
|| w->isDropdownMenu()
|| w->isPopupWindow()
|| w->isLockScreen()
|| w->isSplash())
return;
QRect maximized_area = effects->clientArea(MaximizeArea, w);
if (maximized_area == w->frameGeometry() && m_disabled_for_maximized)
m_skipEffect << w;
m_managed << w;
m_diff_update[w] = true;
}
void
LightlyShadersEffect::windowMaximizedStateChanged(EffectWindow *w, bool horizontal, bool vertical)
{
if (!m_disabled_for_maximized) return;
if ((horizontal == true) && (vertical == true)) {
m_skipEffect << w;
m_diff_update[w] = true;
} else {
m_skipEffect.removeOne(w);
}
}
void
LightlyShadersEffect::drawSquircle(QPainter *p, float size, int translate)
{
QPainterPath squircle;
float squircleSize = size * 2 * (float(m_squircle_ratio)/24.0 * 0.25 + 0.8); //0.8 .. 1.05
float squircleEdge = (size * 2) - squircleSize;
squircle.moveTo(size, 0);
squircle.cubicTo(QPointF(squircleSize, 0), QPointF(size * 2, squircleEdge), QPointF(size * 2, size));
squircle.cubicTo(QPointF(size * 2, squircleSize), QPointF(squircleSize, size * 2), QPointF(size, size * 2));
squircle.cubicTo(QPointF(squircleEdge, size * 2), QPointF(0, squircleSize), QPointF(0, size));
squircle.cubicTo(QPointF(0, squircleEdge), QPointF(squircleEdge, 0), QPointF(size, 0));
squircle.translate(translate,translate);
p->drawPolygon(squircle.toFillPolygon());
}
QImage
LightlyShadersEffect::genMaskImg(int size, bool mask, bool outer_rect)
{
QImage img(size*2, size*2, QImage::Format_ARGB32_Premultiplied);
img.fill(Qt::transparent);
QPainter p(&img);
QRect r(img.rect());
int offset_decremented = m_shadow_offset-1;
if(mask) {
p.fillRect(img.rect(), Qt::black);
p.setCompositionMode(QPainter::CompositionMode_DestinationOut);
p.setPen(Qt::NoPen);
p.setBrush(Qt::black);
p.setRenderHint(QPainter::Antialiasing);
if (m_corners_type == SquircledCorners) {
drawSquircle(&p, (size-m_shadow_offset), m_shadow_offset);
} else {
p.drawEllipse(r.adjusted(m_shadow_offset,m_shadow_offset,-m_shadow_offset,-m_shadow_offset));
}
} else {
p.setPen(Qt::NoPen);
p.setRenderHint(QPainter::Antialiasing);
r.adjust(offset_decremented, offset_decremented, -offset_decremented, -offset_decremented);
if(outer_rect) {
if(m_dark_theme)
p.setBrush(QColor(0, 0, 0, 240));
else
p.setBrush(QColor(0, 0, 0, m_alpha));
} else {
p.setBrush(QColor(255, 255, 255, m_alpha));
}
if (m_corners_type == SquircledCorners) {
drawSquircle(&p, (size-offset_decremented), offset_decremented);
} else {
p.drawEllipse(r);
}
p.setCompositionMode(QPainter::CompositionMode_DestinationOut);
p.setBrush(Qt::black);
r.adjust(1, 1, -1, -1);
if (m_corners_type == SquircledCorners) {
drawSquircle(&p, (size-m_shadow_offset), m_shadow_offset);
} else {
p.drawEllipse(r);
}
}
p.end();
return img;
}
void
LightlyShadersEffect::genMasks()
{
for (int i = 0; i < NTex; ++i)
if (m_tex[i])
delete m_tex[i];
int size = m_size_scaled + m_shadow_offset;
QImage img = genMaskImg(size, true, false);
m_tex[TopLeft] = new GLTexture(img.copy(0, 0, size, size), GL_TEXTURE_RECTANGLE);
m_tex[TopRight] = new GLTexture(img.copy(size, 0, size, size), GL_TEXTURE_RECTANGLE);
m_tex[BottomRight] = new GLTexture(img.copy(size, size, size, size), GL_TEXTURE_RECTANGLE);
m_tex[BottomLeft] = new GLTexture(img.copy(0, size, size, size), GL_TEXTURE_RECTANGLE);
}
void
LightlyShadersEffect::genRect()
{
for (int i = 0; i < NTex; ++i) {
if (m_rect[i])
delete m_rect[i];
if (m_dark_rect[i])
delete m_dark_rect[i];
}
int size = m_size_scaled + (m_shadow_offset-1);
QImage img = genMaskImg(size, false, false);
m_rect[TopLeft] = new GLTexture(img.copy(0, 0, size, size));
m_rect[TopRight] = new GLTexture(img.copy(size, 0, size, size));
m_rect[BottomRight] = new GLTexture(img.copy(size, size, size, size));
m_rect[BottomLeft] = new GLTexture(img.copy(0, size, size, size));
size = m_size_scaled + m_shadow_offset;
QImage img2 = genMaskImg(size, false, true);
m_dark_rect[TopLeft] = new GLTexture(img2.copy(0, 0, size, size));
m_dark_rect[TopRight] = new GLTexture(img2.copy(size, 0, size, size));
m_dark_rect[BottomRight] = new GLTexture(img2.copy(size, size, size, size));
m_dark_rect[BottomLeft] = new GLTexture(img2.copy(0, size, size, size));
}
void
LightlyShadersEffect::setRoundness(const int r)
{
m_size = r;
m_size_scaled = r*m_scale;
m_corner = QSize(m_size+(m_shadow_offset-1), m_size+(m_shadow_offset-1));
genMasks();
genRect();
}
void
LightlyShadersEffect::reconfigure(ReconfigureFlags flags)
{
Q_UNUSED(flags)
KConfigGroup conf = KSharedConfig::openConfig("lightlyshaders.conf")->group("General");
m_alpha = int(conf.readEntry("alpha", 15)*2.55);
m_outline = conf.readEntry("outline", false);
m_dark_theme = conf.readEntry("dark_theme", false);
m_disabled_for_maximized = conf.readEntry("disabled_for_maximized", false);
m_corners_type = conf.readEntry("corners_type", int(RoundedCorners));
m_squircle_ratio = int(conf.readEntry("squircle_ratio", 12));
m_shadow_offset = int(conf.readEntry("shadow_offset", 2));
m_roundness = int(conf.readEntry("roundness", 5));
if(m_shadow_offset>=m_roundness) {
m_shadow_offset = m_roundness-1;
}
int roundness = m_roundness;
if(m_scale!=1.0) {
roundness /= m_scale;
}
setRoundness(roundness);
}
void
LightlyShadersEffect::prePaintWindow(EffectWindow *w, WindowPrePaintData &data, std::chrono::milliseconds time)
{
if (!isValidWindow(w))
{
effects->prePaintWindow(w, data, time);
return;
}
const QRect s(effects->virtualScreenGeometry());
const QRect geo(w->frameGeometry());
const QRegion exp_geo(w->expandedGeometry());
const QRegion shadow = exp_geo - geo;
if(shadow.intersects(data.paint) && geo.width() != s.width()) {
m_diff_update[w] = true;
//qDebug() << "shadow repainted";
}
int offset_decremented = m_shadow_offset-1;
const QRect rect[NTex] =
{
QRect(geo.topLeft()-QPoint(offset_decremented,offset_decremented), m_corner),
QRect(geo.topRight()-QPoint(m_size-offset_decremented, offset_decremented), m_corner),
QRect(geo.bottomRight()-QPoint(m_size-offset_decremented, m_size-offset_decremented), m_corner),
QRect(geo.bottomLeft()-QPoint(offset_decremented, m_size-offset_decremented), m_corner)
};
QRegion repaintRegion(QRegion(geo.adjusted(-m_shadow_offset, -m_shadow_offset, m_shadow_offset, m_shadow_offset))-geo.adjusted(m_shadow_offset, m_shadow_offset, -m_shadow_offset, -m_shadow_offset));
for (int i = 0; i < NTex; ++i)
{
repaintRegion += rect[i];
}
QRegion clip = QRegion();
QRegion clip_scaled = QRegion();
const auto stackingOrder = effects->stackingOrder();
bool bottom_w = true;
for (EffectWindow *window : stackingOrder) {
if(!window->isVisible()
|| window->isDeleted()
|| window->opacity() != 1.0
|| window->isUserMove()
|| window->isUserResize()
|| window->windowClass().contains("latte-dock", Qt::CaseInsensitive)
|| window->windowClass().contains("lattedock", Qt::CaseInsensitive)
|| window->windowClass().contains("peek", Qt::CaseInsensitive)
|| (bottom_w && window != w)
) continue;
const void *addedGrab = window->data(WindowAddedGrabRole).value<void *>();
if (addedGrab) continue;
const void *unminimizedGrab = window->data(WindowUnminimizedGrabRole).value<void *>();
if (unminimizedGrab) continue;
bottom_w = false;
if(window != w) {
/*const QRect r = window->frameGeometry().adjusted(m_size, m_size, -m_size, -m_size);
clip += r;
clip_scaled += scale(r);*/
QRect w_geo = window->frameGeometry();
clip += w_geo;
clip_scaled += scale(w_geo);
const QRect w_rect[NTex] =
{
QRect(w_geo.topLeft()-QPoint(offset_decremented,offset_decremented), m_corner),
QRect(w_geo.topRight()-QPoint(m_size-offset_decremented, offset_decremented), m_corner),
QRect(w_geo.bottomRight()-QPoint(m_size-offset_decremented, m_size-offset_decremented), m_corner),
QRect(w_geo.bottomLeft()-QPoint(offset_decremented, m_size-offset_decremented), m_corner)
};
for (int i = 0; i < NTex; ++i)
{
clip -= w_rect[i];
clip_scaled -= scale(w_rect[i]);
}
}
}
if(m_clip[w] != clip_scaled) {
m_clip[w] = clip_scaled;
m_diff_update[w] = true;
}
repaintRegion -= clip;
for (int i = 0; i < NTex; ++i)
{
if(!clip.contains(rect[i])) {
repaintRegion += rect[i];
clip -= rect[i];
clip_scaled -= scale(rect[i]);
}
}
#if KWIN_EFFECT_API_VERSION < 234
data.clip -= repaintRegion;
#else
data.opaque -= repaintRegion;
#endif
data.paint += repaintRegion;
if(shadow.isEmpty()) {
data.paint = infiniteRegion();
GLTexture tex = GLTexture(GL_TEXTURE_RECTANGLE);
m_diff[w] = QList<GLTexture>();
m_diff_update[w] = false;
for (int i = 0; i < NTex; ++i)
{
m_diff[w].append(tex);
}
}
effects->prePaintWindow(w, data, time);
}
void
LightlyShadersEffect::paintScreen(int mask, const QRegion ®ion, ScreenPaintData &data)
{
effects->paintScreen(mask, region, data);
#if KWIN_EFFECT_API_VERSION < 234
qreal scale = GLRenderTarget::virtualScreenScale();
#else
qreal scale = effects->renderTargetScale();
#endif
qreal zoom = data.xScale();
if(scale*zoom != m_scale) {
if(zoom == 1.0 && scale>m_scale) {
m_scale = scale*zoom;
int roundness = m_roundness;
if(m_scale!=1.0) {
roundness /= m_scale;
}
setRoundness(roundness);
} else {
m_scale = scale*zoom;
}
}
}
bool
LightlyShadersEffect::isValidWindow(EffectWindow *w)
{
if (!m_shader->isValid()
|| !w->isOnCurrentDesktop()
|| !m_managed.contains(w)
/*#if KWIN_EFFECT_API_VERSION < 234
|| !w->isPaintingEnabled()
#endif*/
|| effects->hasActiveFullScreenEffect()
|| w->isFullScreen()
|| w->isDesktop()
|| w->isSpecialWindow()
|| m_skipEffect.contains(w))
{
return false;
}
return true;
}
void
LightlyShadersEffect::paintWindow(EffectWindow *w, int mask, QRegion region, WindowPaintData &data)
{
if (!isValidWindow(w) || (mask & (PAINT_WINDOW_TRANSFORMED|PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS)))
{
effects->paintWindow(w, mask, region, data);
return;
}
bool use_outline = m_outline;
if(mask & PAINT_WINDOW_TRANSFORMED) {
use_outline = false;
}
#if KWIN_EFFECT_API_VERSION < 234
const QRect screen = GLRenderTarget::virtualScreenGeometry();
#else
const QRect screen = effects->renderTargetRect();
#endif
qreal xTranslation = data.xTranslation() + screen.x();
qreal yTranslation = data.yTranslation() + effects->virtualScreenSize().height() - screen.height() - screen.y();
//map the corners
const QRect geo(w->frameGeometry());
const QRect geo_scaled = scale(geo);
const QSize size_scaled(m_size_scaled+m_shadow_offset, m_size_scaled+m_shadow_offset);
const QRect big_rect_scaled[NTex] =
{
QRect(geo_scaled.topLeft()-QPoint(m_shadow_offset,m_shadow_offset), size_scaled),
QRect(geo_scaled.topRight()-QPoint(m_size_scaled-1, m_shadow_offset), size_scaled),
QRect(geo_scaled.bottomRight()-QPoint(m_size_scaled-1, m_size_scaled-1), size_scaled),
QRect(geo_scaled.bottomLeft()-QPoint(m_shadow_offset, m_size_scaled-1), size_scaled)
};
const QRect s(effects->virtualScreenGeometry());
const QRect s_scaled = scale(s);
//check if one of the corners is out of screen
bool out_of_screen = ! (
s_scaled.contains(big_rect_scaled[TopLeft], true)
&& s_scaled.contains(big_rect_scaled[TopRight], true)
&& s_scaled.contains(big_rect_scaled[BottomRight], true)
&& s_scaled.contains(big_rect_scaled[BottomLeft], true)
);
if(w->isDeleted() && out_of_screen) {
effects->paintWindow(w, mask, region, data);
return;
}
//copy the empty corner regions
QList<GLTexture> empty_corners_tex = getTexRegions(w, big_rect_scaled, s_scaled, NTex, xTranslation, yTranslation);
//paint the actual window
effects->paintWindow(w, mask, region, data);
//get shadows
getShadowDiffs(w, big_rect_scaled, empty_corners_tex, xTranslation, yTranslation, out_of_screen);
//Draw rounded corners with shadows
glEnable(GL_BLEND);
const int mvpMatrixLocation = m_shader->uniformLocation("modelViewProjectionMatrix");
const int samplerSizeLocation = m_shader->uniformLocation("sampler_size");
const int flipShadowLocation = m_shader->uniformLocation("flip_shadow");
ShaderManager *sm = ShaderManager::instance();
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
sm->pushShader(m_shader);
for (int i = 0; i < NTex; ++i)
{
if(m_clip[w].contains(big_rect_scaled[i].adjusted(m_size_scaled, m_size_scaled, -m_size_scaled, -m_size_scaled))) {
continue;
}
QMatrix4x4 mvp = data.screenProjectionMatrix();
mvp.scale(1.0/m_scale);
mvp.translate(big_rect_scaled[i].x(), big_rect_scaled[i].y());
QVector2D samplerSize = QVector2D(big_rect_scaled[i].width(), big_rect_scaled[i].height());
m_shader->setUniform(mvpMatrixLocation, mvp);
m_shader->setUniform(samplerSizeLocation, samplerSize);
m_shader->setUniform(flipShadowLocation, out_of_screen && (i==1 || i==2));
glActiveTexture(GL_TEXTURE2);
m_tex[i]->bind();
glActiveTexture(GL_TEXTURE1);
m_diff[w][i].bind();
glActiveTexture(GL_TEXTURE0);
empty_corners_tex[i].bind();
empty_corners_tex[i].render(region, big_rect_scaled[i]);
empty_corners_tex[i].unbind();
m_diff[w][i].unbind();
m_tex[i]->unbind();
}
sm->popShader();
// outline
if (use_outline && data.brightness() == 1.0 && data.crossFadeProgress() == 1.0)
{
const float o(data.opacity());
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
//Outer corners
GLShader *shader = ShaderManager::instance()->pushShader(ShaderTrait::MapTexture|ShaderTrait::UniformColor|ShaderTrait::Modulate);
shader->setUniform(GLShader::ModulationConstant, QVector4D(o, o, o, o));
for (int i = 0; i < NTex; ++i)
{
if(m_clip[w].contains(big_rect_scaled[i].adjusted(m_size_scaled, m_size_scaled, -m_size_scaled, -m_size_scaled))) {
continue;
}
QMatrix4x4 modelViewProjection = data.screenProjectionMatrix();
modelViewProjection.scale(1.0/m_scale);
modelViewProjection.translate(big_rect_scaled[i].x(), big_rect_scaled[i].y());
shader->setUniform("modelViewProjectionMatrix", modelViewProjection);
m_dark_rect[i]->bind();
m_dark_rect[i]->render(region, big_rect_scaled[i]);
m_dark_rect[i]->unbind();
}
ShaderManager::instance()->popShader();
//Inner corners
int offset_decremented = m_shadow_offset-1;
const QSize i_size = QSize(m_size_scaled+offset_decremented, m_size_scaled+offset_decremented);
const QRect rect_scaled[NTex] =
{
QRect(geo_scaled.topLeft()-QPoint(offset_decremented,offset_decremented), i_size),
QRect(geo_scaled.topRight()-QPoint(m_size_scaled-1, offset_decremented), i_size),
QRect(geo_scaled.bottomRight()-QPoint(m_size_scaled-1, m_size_scaled-1), i_size),
QRect(geo_scaled.bottomLeft()-QPoint(offset_decremented, m_size_scaled-1), i_size)
};
shader = ShaderManager::instance()->pushShader(ShaderTrait::MapTexture|ShaderTrait::UniformColor|ShaderTrait::Modulate);
shader->setUniform(GLShader::ModulationConstant, QVector4D(o, o, o, o));
for (int i = 0; i < NTex; ++i)
{
if(m_clip[w].contains(rect_scaled[i].adjusted(m_size_scaled, m_size_scaled, -m_size_scaled, -m_size_scaled))) {
continue;
}
QMatrix4x4 modelViewProjection = data.screenProjectionMatrix();
modelViewProjection.scale(1.0/m_scale);
modelViewProjection.translate(rect_scaled[i].x(), rect_scaled[i].y());
shader->setUniform("modelViewProjectionMatrix", modelViewProjection);
m_rect[i]->bind();
m_rect[i]->render(region, rect_scaled[i]);
m_rect[i]->unbind();
}
ShaderManager::instance()->popShader();
QRect geo_scaled = scale(geo);
QRegion reg = geo_scaled;
QMatrix4x4 mvp = data.screenProjectionMatrix();
mvp.scale(1.0/m_scale);
//Outline
shader = ShaderManager::instance()->pushShader(ShaderTrait::UniformColor);
shader->setUniform("modelViewProjectionMatrix", mvp);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
reg -= QRegion(geo_scaled.adjusted(1, 1, -1, -1));
reg -= m_clip[w];
for (int i = 0; i < NTex; ++i)
reg -= rect_scaled[i];
fillRegion(reg, QColor(255, 255, 255, m_alpha*data.opacity()));
ShaderManager::instance()->popShader();
//Borderline
shader = ShaderManager::instance()->pushShader(ShaderTrait::UniformColor);
shader->setUniform("modelViewProjectionMatrix", mvp);
glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
reg = QRegion(geo_scaled.adjusted(-1, -1, 1, 1));
reg -= geo_scaled;
reg -= m_clip[w];
for (int i = 0; i < NTex; ++i)
reg -= rect_scaled[i];
if(m_dark_theme)
fillRegion(reg, QColor(0, 0, 0, 255*data.opacity()));
else
fillRegion(reg, QColor(0, 0, 0, m_alpha*data.opacity()));
ShaderManager::instance()->popShader();
}
glDisable(GL_BLEND);
}
void
LightlyShadersEffect::fillRegion(const QRegion ®, const QColor &c)
{
GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer();
vbo->reset();
vbo->setUseColor(true);
vbo->setColor(c);
QVector<float> verts;
for (const QRect &r : reg)
{
verts << r.x() + r.width() << r.y();
verts << r.x() << r.y();
verts << r.x() << r.y() + r.height();
verts << r.x() << r.y() + r.height();
verts << r.x() + r.width() << r.y() + r.height();
verts << r.x() + r.width() << r.y();
}
vbo->setData(verts.count() / 2, 2, verts.data(), NULL);
vbo->render(GL_TRIANGLES);
}
void
LightlyShadersEffect::getShadowDiffs(EffectWindow *w, const QRect* rect, QList<GLTexture> &empty_corners_tex, qreal xTranslation, qreal yTranslation, bool out_of_screen)
{
// if we already have diff cache and there's no need to update it, return
if(m_diff.contains(w) && (m_diff_update.contains(w) && !m_diff_update[w])) return;
//else do 1 offscreen paint if needed and get the cache for topleft and bottomleft corners
m_diff_update[w] = false;
const QRect w_exgeo = w->expandedGeometry();
const QRect w_exgeo_scaled = scale(w_exgeo);
//map corners
const QRect r4[NTex] =
{
QRect(QPoint(rect[TopLeft].x()-w_exgeo_scaled.x(),rect[TopLeft].y()-w_exgeo_scaled.y()), rect[TopLeft].size()),
QRect(QPoint(rect[TopRight].x()-w_exgeo_scaled.x(),rect[TopRight].y()-w_exgeo_scaled.y()), rect[TopRight].size()),
QRect(QPoint(rect[BottomRight].x()-w_exgeo_scaled.x(),rect[BottomRight].y()-w_exgeo_scaled.y()), rect[BottomRight].size()),
QRect(QPoint(rect[BottomLeft].x()-w_exgeo_scaled.x(),rect[BottomLeft].y()-w_exgeo_scaled.y()), rect[BottomLeft].size())
};
const QRect r2[NShad] =
{
r4[TopLeft],
r4[BottomLeft]
};
const QRect s_geo = effects->virtualScreenGeometry();
const QRect s_geo_scaled = scale(s_geo);
QList<GLTexture> shadow_tex;
//if window is not out of screen, get shadow samplers from the buffer for 4 corners
if(!out_of_screen) {
shadow_tex = getTexRegions(w, rect, s_geo_scaled, NTex, xTranslation, yTranslation, true);
//else do offscreen render and get shadow samplers from 2 corners
} else {
QImage img(w_exgeo_scaled.width(), w_exgeo_scaled.height(), QImage::Format_ARGB32_Premultiplied);
img.fill(Qt::white);
GLTexture target = GLTexture(img.copy(0, 0, w_exgeo_scaled.width(), w_exgeo_scaled.height()), GL_TEXTURE_RECTANGLE);
#if KWIN_EFFECT_API_VERSION < 234
GLRenderTarget renderTarget(target);
GLRenderTarget::pushRenderTarget(&renderTarget);
#else
GLFramebuffer renderTarget(&target);
GLFramebuffer::pushFramebuffer(&renderTarget);
#endif
#if KWIN_EFFECT_API_VERSION < 234
WindowPaintData d(w);
#else
WindowPaintData d;
#endif
d += QPoint(-w_exgeo.x(), -w_exgeo.y());
QMatrix4x4 projection;
projection.ortho(QRect(0, 0, w_exgeo.width(), w_exgeo.height()));
d.setProjectionMatrix(projection);
int mask = PAINT_WINDOW_TRANSFORMED | PAINT_WINDOW_TRANSLUCENT;
#if KWIN_EFFECT_API_VERSION < 234
GLVertexBuffer::setVirtualScreenGeometry(QRect(0, 0, w_exgeo_scaled.width(), w_exgeo_scaled.height()));
#endif
effects->drawWindow(w, mask, infiniteRegion(), d);
//get shadow sampler from 2 corners
shadow_tex = getTexRegions(w, r2, w_exgeo_scaled, NShad, 0.0, 0.0, true);
#if KWIN_EFFECT_API_VERSION < 234
GLRenderTarget::popRenderTarget();
#else
GLFramebuffer::popFramebuffer();
#endif
}
m_diff[w] = QList<GLTexture>();
const int mvpMatrixLocation = m_diff_shader ->uniformLocation("modelViewProjectionMatrix");
const int cornerNumberLocation = m_diff_shader->uniformLocation("corner_number");
const int samplerSizeLocation = m_diff_shader->uniformLocation("sampler_size");
ShaderManager *sm = ShaderManager::instance();
sm->pushShader(m_diff_shader);
int n;
if(out_of_screen) n = NShad;
else n = NTex;
const QRect *r = out_of_screen ? r2 : r4;
GLTexture white_tex = GLTexture(GL_TEXTURE_RECTANGLE);
if(out_of_screen) {
QImage white_img(r[0].width(), r[0].height(), QImage::Format_ARGB32_Premultiplied);
white_img.fill(Qt::white);
white_tex = GLTexture(white_img.copy(0, 0, r[0].width(), r[0].height()), GL_TEXTURE_RECTANGLE);
}
for (int i = 0; i < n; ++i)
{
GLTexture target = GLTexture(GL_RGBA8, w_exgeo_scaled.size());
#if KWIN_EFFECT_API_VERSION < 234
GLRenderTarget renderTarget(target);
GLRenderTarget::pushRenderTarget(&renderTarget);
#else
GLFramebuffer renderTarget(&target);
GLFramebuffer::pushFramebuffer(&renderTarget);
#endif
QMatrix4x4 mvp;
mvp.ortho(QRect(0, 0, w_exgeo_scaled.width(), w_exgeo_scaled.height()));
QVector2D samplerSize = QVector2D(r[i].width(), r[i].height());
mvp.translate(r[i].x(), r[i].y());
m_diff_shader->setUniform(mvpMatrixLocation, mvp);
m_diff_shader->setUniform(samplerSizeLocation, samplerSize);
m_diff_shader->setUniform(cornerNumberLocation, out_of_screen? i*3 : i);
glActiveTexture(GL_TEXTURE1);
if(!out_of_screen)
empty_corners_tex[i].bind();
else
white_tex.bind();
glActiveTexture(GL_TEXTURE0);
shadow_tex[i].bind();
shadow_tex[i].render(r[i], r[i]);
shadow_tex[i].unbind();
if(!out_of_screen) {
empty_corners_tex[i].unbind();
m_diff[w].append(copyTexSubImage(w_exgeo_scaled, r[i]));
} else {
white_tex.unbind();
GLTexture t = copyTexSubImage(w_exgeo_scaled, r[i]);
m_diff[w].append(t);
m_diff[w].append(t);
}
#if KWIN_EFFECT_API_VERSION < 234
GLRenderTarget::popRenderTarget();
#else
GLFramebuffer::popFramebuffer();
#endif
}
sm->popShader();
}
QList<GLTexture>
LightlyShadersEffect::getTexRegions(EffectWindow *w, const QRect* rect, const QRect &geo, int nTex, qreal xTranslation, qreal yTranslation, bool force)
{
QList<GLTexture> sample_tex;
for (int i = 0; i < nTex; ++i)
{
if(m_clip[w].contains(rect[i].adjusted(m_size_scaled, m_size_scaled, -m_size_scaled, -m_size_scaled)) && !force) {
sample_tex.append(GLTexture(GL_TEXTURE_RECTANGLE));
continue;
}
sample_tex.append(copyTexSubImage(geo, rect[i], xTranslation, yTranslation));
}
return sample_tex;
}
GLTexture
LightlyShadersEffect::copyTexSubImage(const QRect &geo, const QRect &rect, qreal xTranslation, qreal yTranslation)
{
QImage img(rect.width(), rect.height(), QImage::Format_ARGB32_Premultiplied);
GLTexture t = GLTexture(img, GL_TEXTURE_RECTANGLE);
t.bind();
glCopyTexSubImage2D(
GL_TEXTURE_RECTANGLE,
0,
0,
0,
rect.x() - xTranslation,
geo.height() - rect.y() - rect.height() - yTranslation,
rect.width(),
rect.height()
);
t.unbind();
return t;
}
QRect
LightlyShadersEffect::scale(const QRect rect)
{
return QRect(
rect.x()*m_scale,
rect.y()*m_scale,
rect.width()*m_scale,
rect.height()*m_scale
);
}
bool
LightlyShadersEffect::enabledByDefault()
{
return supported();
}
bool
LightlyShadersEffect::supported()
{
#if KWIN_EFFECT_API_VERSION < 234
return effects->isOpenGLCompositing() && GLRenderTarget::supported();
#else
return effects->isOpenGLCompositing() && GLFramebuffer::supported();
#endif
}
#include "lightlyshaders.moc"
} // namespace KWin