Differential D18683 Diff 51530 platformsupport/scenes/opengl/backend.h

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platformsupport/scenes/opengl/backend.h

Show First 20 Lines • Show All 162 Lines • ▼ Show 20 Line(s)54public:
163 * @returns whether the context is surfaceless 163​ * @returns whether the context is surfaceless
164 **/ 164​ **/
165 bool isSurfaceLessContext() const { 165​ bool isSurfaceLessContext() const {
166 return m_surfaceLessContext; 166​ return m_surfaceLessContext;
167 } 167​ }
168 168​
169 /** 169​ /**
170 * Returns the damage that has accumulated since a buffer of the given age was presented. 170​ * Returns the damage that has accumulated since a buffer of the given age was presented.
171 */ 171​ **/
172 QRegion accumulatedDamageHistory(int bufferAge) const; 172​ QRegion accumulatedDamageHistory(int bufferAge) const;
173 173​
174 /** 174​ /**
175 * Saves the given region to damage history. 175​ * Saves the given region to damage history.
176 */ 176​ **/
177 void addToDamageHistory(const QRegion &region); 177​ void addToDamageHistory(const QRegion &region);
178 178​
179 /** 179​ /**
180 * The backend specific extensions (e.g. EGL/GLX extensions). 180​ * The backend specific extensions (e.g. EGL/GLX extensions).
181 * 181​ *
182 * Not the OpenGL (ES) extension! 182​ * Not the OpenGL (ES) extension!
183 **/ 183​ **/
184 QList<QByteArray> extensions() const { 184​ QList<QByteArray> extensions() const {
185 return m_extensions; 185​ return m_extensions;
186 } 186​ }
187 187​
188 /** 188​ /**
189 * @returns whether the backend specific extensions contains @p extension. 189​ * @returns whether the backend specific extensions contains @p extension.
190 **/ 190​ **/
191 bool hasExtension(const QByteArray &extension) const { 191​ bool hasExtension(const QByteArray &extension) const {
192 return m_extensions.contains(extension); 192​ return m_extensions.contains(extension);
193 } 193​ }
194 194​
195 /** 195​ /**
196 * Copy a region of pixels from the current read to the current draw buffer 196​ * Copy a region of pixels from the current read to the current draw buffer
197 */ 197​ **/
198 void copyPixels(const QRegion &region); 198​ void copyPixels(const QRegion &region);
199 199​
200protected: 200​protected:
201 /** 201​ /**
202 * @brief Backend specific flushing of frame to screen. 202​ * @brief Backend specific flushing of frame to screen.
203 **/ 203​ **/
204 virtual void present() = 0; 204​ virtual void present() = 0;
205 /** 205​ /**
▲ Show 20 Lines • Show All 86 Lines • ▼ Show 20 Line(s)285private:
292 **/ 292​ **/
293 bool m_blocksForRetrace; 293​ bool m_blocksForRetrace;
294 /** 294​ /**
295 * @brief Whether direct rendering is used, defaults to @c false. 295​ * @brief Whether direct rendering is used, defaults to @c false.
296 **/ 296​ **/
297 bool m_directRendering; 297​ bool m_directRendering;
298 /** 298​ /**
299 * @brief Whether the backend supports GLX_EXT_buffer_age / EGL_EXT_buffer_age. 299​ * @brief Whether the backend supports GLX_EXT_buffer_age / EGL_EXT_buffer_age.
300 */ 300​ **/
301 bool m_haveBufferAge; 301​ bool m_haveBufferAge;
302 /** 302​ /**
303 * @brief Whether the initialization failed, of course default to @c false. 303​ * @brief Whether the initialization failed, of course default to @c false.
304 **/ 304​ **/
305 bool m_failed; 305​ bool m_failed;
306 /** 306​ /**
307 * @brief Damaged region of previously rendered frame. 307​ * @brief Damaged region of previously rendered frame.
308 **/ 308​ **/
309 QRegion m_lastDamage; 309​ QRegion m_lastDamage;
310 /** 310​ /**
311 * @brief The damage history for the past 10 frames. 311​ * @brief The damage history for the past 10 frames.
312 */ 312​ **/
313 QList<QRegion> m_damageHistory; 313​ QList<QRegion> m_damageHistory;
314 /** 314​ /**
315 * @brief Timer to measure how long a frame renders. 315​ * @brief Timer to measure how long a frame renders.
316 **/ 316​ **/
317 QElapsedTimer m_renderTimer; 317​ QElapsedTimer m_renderTimer;
318 bool m_surfaceLessContext = false; 318​ bool m_surfaceLessContext = false;
319 319​
320 QList<QByteArray> m_extensions; 320​ QList<QByteArray> m_extensions;
321}; 321​};
322 322​
323} 323​}
324 324​
325#endif 325​#endif