Differential D23663 Diff 65455 backends/xrandr/xrandroutput.cpp

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backends/xrandr/xrandroutput.cpp

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19#include "xrandroutput.h" 19​#include "xrandroutput.h"
20 20​
21#include "config.h" 21​#include "config.h"
22#include "xrandr.h" 22​#include "xrandr.h"
23#include "xrandrconfig.h" 23​#include "xrandrconfig.h"
24#include "xrandrmode.h" 24​#include "xrandrmode.h"
25#include "../utils.h" 25​#include "../utils.h"
26 26​
27​#include <xcb/render.h>
28​
27Q_DECLARE_METATYPE(QList<int>) 29​Q_DECLARE_METATYPE(QList<int>)
28 30​
31​#define DOUBLE_TO_FIXED(d) ((xcb_render_fixed_t) ((d) * 65536))
32​#define FIXED_TO_DOUBLE(f) ((double) ((f) / 65536.0))
33​
34​xcb_render_fixed_t fOne = DOUBLE_TO_FIXED(1);
35​xcb_render_fixed_t fZero = DOUBLE_TO_FIXED(0);
36​
29XRandROutput::XRandROutput(xcb_randr_output_t id, XRandRConfig *config) 37​XRandROutput::XRandROutput(xcb_randr_output_t id, XRandRConfig *config)
30 : QObject(config) 38​ : QObject(config)
31 , m_config(config) 39​ , m_config(config)
32 , m_id(id) 40​ , m_id(id)
33 , m_primary(false) 41​ , m_primary(false)
34 , m_type(KScreen::Output::Unknown) 42​ , m_type(KScreen::Output::Unknown)
43​ , m_replicationSource(XCB_NONE)
35 , m_crtc(nullptr) 44​ , m_crtc(nullptr)
36{ 45​{
37 init(); 46​ init();
38} 47​}
39 48​
40XRandROutput::~XRandROutput() 49​XRandROutput::~XRandROutput()
41{ 50​{
42} 51​}
▲ Show 20 Lines • Show All 53 Lines • ▼ Show 20 Line(s)
96} 105​}
97 106​
98KScreen::Output::Rotation XRandROutput::rotation() const 107​KScreen::Output::Rotation XRandROutput::rotation() const
99{ 108​{
100 return static_cast<KScreen::Output::Rotation>(m_crtc ? m_crtc->rotation() : 109​ return static_cast<KScreen::Output::Rotation>(m_crtc ? m_crtc->rotation() :
101 XCB_RANDR_ROTATION_ROTATE_0); 110​ XCB_RANDR_ROTATION_ROTATE_0);
102} 111​}
103 112​
113​bool XRandROutput::isHorizontal() const
114​{
115​ const auto rot = rotation();
116​ return rot == KScreen::Output::Rotation::None || rot == KScreen::Output::Rotation::Inverted;
117​}
118​
104QByteArray XRandROutput::edid() const 119​QByteArray XRandROutput::edid() const
105{ 120​{
106 if (m_edid.isNull()) { 121​ if (m_edid.isNull()) {
107 m_edid = XRandR::outputEdid(m_id); 122​ m_edid = XRandR::outputEdid(m_id);
108 } 123​ }
109 return m_edid; 124​ return m_edid;
110} 125​}
111 126​
112XRandRCrtc* XRandROutput::crtc() const 127​XRandRCrtc* XRandROutput::crtc() const
113{ 128​{
114 return m_crtc; 129​ return m_crtc;
115} 130​}
116 131​
132​xcb_randr_output_t XRandROutput::replicationSource() const
133​{
134​ return m_replicationSource;
135​}
136​
117void XRandROutput::update() 137​void XRandROutput::update()
118{ 138​{
119 init(); 139​ init();
120} 140​}
121 141​
122void XRandROutput::update(xcb_randr_crtc_t crtc, xcb_randr_mode_t mode, xcb_randr_connection_t conn, 142​void XRandROutput::update(xcb_randr_crtc_t crtc, xcb_randr_mode_t mode, xcb_randr_connection_t conn,
123 bool primary) 143​ bool primary)
124{ 144​{
▲ Show 20 Lines • Show All 170 Lines • ▼ Show 20 Line(s)288{
295 if (!connectorType) { 315​ if (!connectorType) {
296 return type; 316​ return type;
297 } 317​ }
298 318​
299 type = connectorType; 319​ type = connectorType;
300 return type; 320​ return type;
301} 321​}
302 322​
323​bool isScaling(const xcb_render_transform_t &tr)
324​{
325​ return tr.matrix11 != fZero && tr.matrix12 == fZero && tr.matrix13 == fZero &&
326​ tr.matrix21 == fZero && tr.matrix22 != fZero && tr.matrix23 == fZero &&
327​ tr.matrix31 == fZero && tr.matrix32 == fZero && tr.matrix33 == fOne;
328​}
329​
330​xcb_render_transform_t zeroMatrix()
331​{
332​ return { DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
333​ DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
334​ DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0) };
335​}
336​
337​xcb_render_transform_t XRandROutput::currentTransform() const
338​{
339​ auto cookie = xcb_randr_get_crtc_transform(XCB::connection(), m_crtc->crtc());
340​ xcb_generic_error_t *error = nullptr;
341​ auto *reply = xcb_randr_get_crtc_transform_reply(XCB::connection(), cookie, &error);
342​ if (error) {
343​ return zeroMatrix();
344​ }
345​
346​ const xcb_render_transform_t transform = reply->pending_transform;
347​ free(reply);
348​ return transform;
349​}
350​
351​QSizeF XRandROutput::scaledSize(xcb_render_transform_t transform) const
352​{
353​ const QSize ownSize = size();
354​ if (!ownSize.isValid()) {
355​ return QSize();
356​ }
357​
358​ const qreal width = FIXED_TO_DOUBLE(transform.matrix11) * ownSize.width();
359​ const qreal height = FIXED_TO_DOUBLE(transform.matrix22) * ownSize.height();
360​
361​ return QSizeF(width, height);
362​}
363​
364​bool XRandROutput::isReplicaOf(XRandROutput *output, xcb_render_transform_t ownTransform) const
365​{
366​ if (output->id() == m_id) {
367​ return false;
368​ }
369​ if (output->position() != position()) {
370​ return false;
371​ }
372​ if (output->replicationSource() != XCB_NONE) {
373​ return false;
374​ }
375​
376​ const QSizeF sSize = scaledSize(ownTransform);
377​ if (!sSize.isValid()) {
378​ return false;
379​ }
380​
381​ const auto outputTransform = output->currentTransform();
382​ if (!isScaling(outputTransform)) {
383​ return false;
384​ }
385​
386​ if (sSize != output->scaledSize(outputTransform)) {
387​ return false;
388​ }
389​
390​ return true;
391​}
392​
393​xcb_render_transform_t unityTransform()
394​{
395​ return { DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0),
396​ DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1), DOUBLE_TO_FIXED(0),
397​ DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(0), DOUBLE_TO_FIXED(1) };
398​}
399​
400​xcb_render_transform_t XRandROutput::getReplicationTransform(XRandROutput *source)
401​{
402​ if (!source) {
403​ return unityTransform();
404​ }
405​
406​ const auto *sourceMode = source->currentMode();
407​ const auto *ownMode = currentMode();
408​ if (!sourceMode || !ownMode) {
409​ return unityTransform();
410​ }
411​
412​ QSize sourceSize = sourceMode->size();
413​ QSize size = ownMode->size();
414​
415​ if (isHorizontal()) {
416​ if (!source->isHorizontal()) {
417​ sourceSize.transpose();
418​ }
419​ } else if (source->isHorizontal()) {
420​ size.transpose();
421​ }
422​
423​ const qreal widthFactor = sourceSize.width() / (qreal)size.width();
424​ const qreal heightFactor = sourceSize.height() / (qreal)size.height();
425​
426​ xcb_render_transform_t transform = unityTransform();
427​ transform.matrix11 = DOUBLE_TO_FIXED(widthFactor);
428​ transform.matrix22 = DOUBLE_TO_FIXED(heightFactor);
429​
430​ return transform;
431​}
432​
433​bool XRandROutput::updateReplication()
434​{
435​ XRandROutput *source = m_config->output(m_replicationSource);
436​ if (source && (!source->isEnabled() || !source->isConnected())) {
437​ return false;
438​ }
439​
440​ xcb_render_transform_t transform = getReplicationTransform(source);
441​ QByteArray filterName(isScaling(transform) ? "bilinear" : "nearest");
442​
443​ auto cookie = xcb_randr_set_crtc_transform_checked(XCB::connection(),
444​ m_crtc->crtc(),
445​ transform,
446​ filterName.size(), filterName.data(),
447​ 0, nullptr);
448​ xcb_generic_error_t *error = xcb_request_check(XCB::connection(), cookie);
449​ if (error) {
450​ qCDebug(KSCREEN_XRANDR) << "Error on replication transformation!";
451​ free(error);
452​ return false;
453​ }
454​ free(error);
455​ return true;
456​}
457​
458​bool XRandROutput::setReplicationSource(xcb_randr_output_t source)
459​{
460​ if (!m_crtc) {
461​ return false;
462​ }
463​ if (m_replicationSource == source) {
464​ return true;
465​ }
466​ xcb_randr_output_t oldSource = m_replicationSource;
467​ m_replicationSource = source;
468​ if (!updateReplication()) {
469​ m_replicationSource = oldSource;
470​ return false;
471​ }
472​ return true;
473​}
474​
303KScreen::OutputPtr XRandROutput::toKScreenOutput() const 475​KScreen::OutputPtr XRandROutput::toKScreenOutput() const
304{ 476​{
305 KScreen::OutputPtr kscreenOutput(new KScreen::Output); 477​ KScreen::OutputPtr kscreenOutput(new KScreen::Output);
306 478​
307 const bool signalsBlocked = kscreenOutput->signalsBlocked(); 479​ const bool signalsBlocked = kscreenOutput->signalsBlocked();
308 kscreenOutput->blockSignals(true); 480​ kscreenOutput->blockSignals(true);
309 kscreenOutput->setId(m_id); 481​ kscreenOutput->setId(m_id);
310 kscreenOutput->setType(m_type); 482​ kscreenOutput->setType(m_type);
Show All 25 Lines492 if (isConnected()) {
336 }(m_clones)); 508​ }(m_clones));
337 kscreenOutput->setEnabled(isEnabled()); 509​ kscreenOutput->setEnabled(isEnabled());
338 if (isEnabled()) { 510​ if (isEnabled()) {
339 kscreenOutput->setSize(size()); 511​ kscreenOutput->setSize(size());
340 kscreenOutput->setPos(position()); 512​ kscreenOutput->setPos(position());
341 kscreenOutput->setRotation(rotation()); 513​ kscreenOutput->setRotation(rotation());
342 kscreenOutput->setCurrentModeId(currentModeId()); 514​ kscreenOutput->setCurrentModeId(currentModeId());
343 } 515​ }
516​ kscreenOutput->setReplicationSource(m_replicationSource);
344 } 517​ }
345 518​
346 ​
347 kscreenOutput->blockSignals(signalsBlocked); 519​ kscreenOutput->blockSignals(signalsBlocked);
348 return kscreenOutput; 520​ return kscreenOutput;
349} 521​}