Differential D4539 Diff 11489 plugins/platforms/drm/egl_gbm_backend.cpp

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plugins/platforms/drm/egl_gbm_backend.cpp

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22#include "composite.h" 22​#include "composite.h"
23#include "drm_backend.h" 23​#include "drm_backend.h"
24#include "drm_output.h" 24​#include "drm_output.h"
25#include "logging.h" 25​#include "logging.h"
26#include "options.h" 26​#include "options.h"
27#include "screens.h" 27​#include "screens.h"
28// kwin libs 28​// kwin libs
29#include <kwinglplatform.h> 29​#include <kwinglplatform.h>
30​// kwayland
31​#include <KWayland/Server/buffer_interface.h>
30// Qt 32​// Qt
31#include <QOpenGLContext> 33​#include <QOpenGLContext>
32// system 34​// system
33#include <gbm.h> 35​#include <gbm.h>
34 36​
35namespace KWin 37​namespace KWin
36{ 38​{
37 39​
38EglGbmBackend::EglGbmBackend(DrmBackend *b) 40​EglGbmBackend::EglGbmBackend(DrmBackend *b)
39 : QObject(NULL) 41​ : QObject(NULL)
40 , AbstractEglBackend() 42​ , AbstractEglBackend()
41 , m_backend(b) 43​ , m_backend(b)
42{ 44​{
43 // Egl is always direct rendering 45​ // Egl is always direct rendering
44 setIsDirectRendering(true); 46​ setIsDirectRendering(true);
45 setSyncsToVBlank(true); 47​ setSyncsToVBlank(true);
48​ setSupportsDirectFullScreenScanout(true);
46 connect(m_backend, &DrmBackend::outputAdded, this, &EglGbmBackend::createOutput); 49​ connect(m_backend, &DrmBackend::outputAdded, this, &EglGbmBackend::createOutput);
47 connect(m_backend, &DrmBackend::outputRemoved, this, 50​ connect(m_backend, &DrmBackend::outputRemoved, this,
48 [this] (DrmOutput *output) { 51​ [this] (DrmOutput *output) {
49 auto it = std::find_if(m_outputs.begin(), m_outputs.end(), 52​ auto it = std::find_if(m_outputs.begin(), m_outputs.end(),
50 [output] (const Output &o) { 53​ [output] (const Output &o) {
51 return o.output == output; 54​ return o.output == output;
52 } 55​ }
53 ); 56​ );
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234void EglGbmBackend::presentOnOutput(EglGbmBackend::Output &o) 237​void EglGbmBackend::presentOnOutput(EglGbmBackend::Output &o)
235{ 238​{
236 eglSwapBuffers(eglDisplay(), o.eglSurface); 239​ eglSwapBuffers(eglDisplay(), o.eglSurface);
237 o.buffer = m_backend->createBuffer(o.gbmSurface); 240​ o.buffer = m_backend->createBuffer(o.gbmSurface);
238 m_backend->present(o.buffer, o.output); 241​ m_backend->present(o.buffer, o.output);
239 if (supportsBufferAge()) { 242​ if (supportsBufferAge()) {
240 eglQuerySurface(eglDisplay(), o.eglSurface, EGL_BUFFER_AGE_EXT, &o.bufferAge); 243​ eglQuerySurface(eglDisplay(), o.eglSurface, EGL_BUFFER_AGE_EXT, &o.bufferAge);
241 } 244​ }
242 ​
243} 245​}
244 246​
245void EglGbmBackend::screenGeometryChanged(const QSize &size) 247​void EglGbmBackend::screenGeometryChanged(const QSize &size)
246{ 248​{
247 Q_UNUSED(size) 249​ Q_UNUSED(size)
248 // TODO, create new buffer? 250​ // TODO, create new buffer?
249} 251​}
250 252​
▲ Show 20 Lines • Show All 68 Lines • ▼ Show 20 Line(s)320 if (supportsBufferAge() && screenId == 0) {
319 if (o.damageHistory.count() > 10) { 321​ if (o.damageHistory.count() > 10) {
320 o.damageHistory.removeLast(); 322​ o.damageHistory.removeLast();
321 } 323​ }
322 324​
323 o.damageHistory.prepend(damagedRegion.intersected(o.output->geometry())); 325​ o.damageHistory.prepend(damagedRegion.intersected(o.output->geometry()));
324 } 326​ }
325} 327​}
326 328​
329​bool EglGbmBackend::directScanoutForScreen(int screenId, KWayland::Server::BufferInterface *buffer)
330​{
331​ Output &o = m_outputs[screenId];
332​
333​ o.buffer = m_backend->createDirectScanoutBuffer(buffer);
334​
335​ if (o.buffer->size() != o.output->size()) {
336​ delete o.buffer;
337​ return false;
338​ }
339​ if (!m_backend->present(o.buffer, o.output)) {
340​ return false;
341​ }
342​
343​ if (screenId == 0) {
344​ for (auto &o : m_outputs) {
345​ o.bufferAge = 0;
346​ }
347​ }
348​
349​ return true;
350​}
351​
327bool EglGbmBackend::usesOverlayWindow() const 352​bool EglGbmBackend::usesOverlayWindow() const
328{ 353​{
329 return false; 354​ return false;
330} 355​}
331 356​
332bool EglGbmBackend::perScreenRendering() const 357​bool EglGbmBackend::perScreenRendering() const
333{ 358​{
334 return true; 359​ return true;
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