Differential D18683 Diff 50742 libkwineffects/kwinxrenderutils.h

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libkwineffects/kwinxrenderutils.h

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35 35​
36/** @addtogroup kwineffects */ 36​/** @addtogroup kwineffects */
37/** @{ */ 37​/** @{ */
38 38​
39namespace KWin 39​namespace KWin
40{ 40​{
41/** 41​/**
42 * dumps a QColor into a xcb_render_color_t 42​ * dumps a QColor into a xcb_render_color_t
43 */ 43​ **/
44KWINXRENDERUTILS_EXPORT xcb_render_color_t preMultiply(const QColor &c, float opacity = 1.0); 44​KWINXRENDERUTILS_EXPORT xcb_render_color_t preMultiply(const QColor &c, float opacity = 1.0);
45 45​
46/** @internal */ 46​/** @internal */
47class KWINXRENDERUTILS_EXPORT XRenderPictureData 47​class KWINXRENDERUTILS_EXPORT XRenderPictureData
48 : public QSharedData 48​ : public QSharedData
49{ 49​{
50public: 50​public:
51 explicit XRenderPictureData(xcb_render_picture_t pic = XCB_RENDER_PICTURE_NONE); 51​ explicit XRenderPictureData(xcb_render_picture_t pic = XCB_RENDER_PICTURE_NONE);
52 ~XRenderPictureData(); 52​ ~XRenderPictureData();
53 xcb_render_picture_t value(); 53​ xcb_render_picture_t value();
54private: 54​private:
55 xcb_render_picture_t picture; 55​ xcb_render_picture_t picture;
56 Q_DISABLE_COPY(XRenderPictureData) 56​ Q_DISABLE_COPY(XRenderPictureData)
57}; 57​};
58 58​
59/** 59​/**
60 * @short Wrapper around XRender Picture. 60​ * @short Wrapper around XRender Picture.
61 * 61​ *
62 * This class wraps XRender's Picture, providing proper initialization, 62​ * This class wraps XRender's Picture, providing proper initialization,
63 * convenience constructors and freeing of resources. 63​ * convenience constructors and freeing of resources.
64 * It should otherwise act exactly like the Picture type. 64​ * It should otherwise act exactly like the Picture type.
65 */ 65​ **/
66class KWINXRENDERUTILS_EXPORT XRenderPicture 66​class KWINXRENDERUTILS_EXPORT XRenderPicture
67{ 67​{
68public: 68​public:
69 explicit XRenderPicture(xcb_render_picture_t pic = XCB_RENDER_PICTURE_NONE); 69​ explicit XRenderPicture(xcb_render_picture_t pic = XCB_RENDER_PICTURE_NONE);
70 explicit XRenderPicture(const QImage &img); 70​ explicit XRenderPicture(const QImage &img);
71 XRenderPicture(xcb_pixmap_t pix, int depth); 71​ XRenderPicture(xcb_pixmap_t pix, int depth);
72 operator xcb_render_picture_t(); 72​ operator xcb_render_picture_t();
73private: 73​private:
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114XFixesRegion::operator xcb_xfixes_region_t() 114​XFixesRegion::operator xcb_xfixes_region_t()
115{ 115​{
116 return m_region; 116​ return m_region;
117} 117​}
118 118​
119/** 119​/**
120 * Static 1x1 picture used to deliver a black pixel with given opacity (for blending performance) 120​ * Static 1x1 picture used to deliver a black pixel with given opacity (for blending performance)
121 * Call and Use, the PixelPicture will stay, but may change it's opacity meanwhile. It's NOT threadsafe either 121​ * Call and Use, the PixelPicture will stay, but may change it's opacity meanwhile. It's NOT threadsafe either
122 */ 122​ **/
123KWINXRENDERUTILS_EXPORT XRenderPicture xRenderBlendPicture(double opacity); 123​KWINXRENDERUTILS_EXPORT XRenderPicture xRenderBlendPicture(double opacity);
124/** 124​/**
125 * Creates a 1x1 Picture filled with c 125​ * Creates a 1x1 Picture filled with c
126 */ 126​ **/
127KWINXRENDERUTILS_EXPORT XRenderPicture xRenderFill(const xcb_render_color_t &c); 127​KWINXRENDERUTILS_EXPORT XRenderPicture xRenderFill(const xcb_render_color_t &c);
128KWINXRENDERUTILS_EXPORT XRenderPicture xRenderFill(const QColor &c); 128​KWINXRENDERUTILS_EXPORT XRenderPicture xRenderFill(const QColor &c);
129 129​
130/** 130​/**
131 * Allows to render a window into a (transparent) pixmap 131​ * Allows to render a window into a (transparent) pixmap
132 * NOTICE: the result can be queried as xRenderWindowOffscreenTarget() 132​ * NOTICE: the result can be queried as xRenderWindowOffscreenTarget()
133 * NOTICE: it may be 0 133​ * NOTICE: it may be 0
134 * NOTICE: when done call setXRenderWindowOffscreen(false) to continue normal render process 134​ * NOTICE: when done call setXRenderWindowOffscreen(false) to continue normal render process
135 */ 135​ **/
136KWINXRENDERUTILS_EXPORT void setXRenderOffscreen(bool b); 136​KWINXRENDERUTILS_EXPORT void setXRenderOffscreen(bool b);
137 137​
138/** 138​/**
139 * Allows to define a persistent effect member as render target 139​ * Allows to define a persistent effect member as render target
140 * The window (including shadows) is rendered into the top left corner 140​ * The window (including shadows) is rendered into the top left corner
141 * NOTICE: do NOT call setXRenderOffscreen(true) in addition! 141​ * NOTICE: do NOT call setXRenderOffscreen(true) in addition!
142 * NOTICE: do not forget to xRenderPopTarget once you're done to continue the normal render process 142​ * NOTICE: do not forget to xRenderPopTarget once you're done to continue the normal render process
143 */ 143​ **/
144KWINXRENDERUTILS_EXPORT void xRenderPushTarget(XRenderPicture *pic); 144​KWINXRENDERUTILS_EXPORT void xRenderPushTarget(XRenderPicture *pic);
145KWINXRENDERUTILS_EXPORT void xRenderPopTarget(); 145​KWINXRENDERUTILS_EXPORT void xRenderPopTarget();
146 146​
147/** 147​/**
148 * Whether windows are currently rendered into an offscreen target buffer 148​ * Whether windows are currently rendered into an offscreen target buffer
149 */ 149​ **/
150KWINXRENDERUTILS_EXPORT bool xRenderOffscreen(); 150​KWINXRENDERUTILS_EXPORT bool xRenderOffscreen();
151/** 151​/**
152 * The offscreen buffer as set by the renderer because of setXRenderWindowOffscreen(true) 152​ * The offscreen buffer as set by the renderer because of setXRenderWindowOffscreen(true)
153 */ 153​ **/
154KWINXRENDERUTILS_EXPORT xcb_render_picture_t xRenderOffscreenTarget(); 154​KWINXRENDERUTILS_EXPORT xcb_render_picture_t xRenderOffscreenTarget();
155 155​
156/** 156​/**
157 * NOTICE: HANDS OFF!!! 157​ * NOTICE: HANDS OFF!!!
158 * scene_setXRenderWindowOffscreenTarget() is ONLY to be used by the renderer - DO NOT TOUCH! 158​ * scene_setXRenderWindowOffscreenTarget() is ONLY to be used by the renderer - DO NOT TOUCH!
159 */ 159​ **/
160KWINXRENDERUTILS_EXPORT void scene_setXRenderOffscreenTarget(xcb_render_picture_t pix); 160​KWINXRENDERUTILS_EXPORT void scene_setXRenderOffscreenTarget(xcb_render_picture_t pix);
161/** 161​/**
162 * scene_xRenderWindowOffscreenTarget() is used by the scene to figure the target set by an effect 162​ * scene_xRenderWindowOffscreenTarget() is used by the scene to figure the target set by an effect
163 */ 163​ **/
164KWINXRENDERUTILS_EXPORT XRenderPicture *scene_xRenderOffscreenTarget(); 164​KWINXRENDERUTILS_EXPORT XRenderPicture *scene_xRenderOffscreenTarget();
165 165​
166namespace XRenderUtils 166​namespace XRenderUtils
167{ 167​{
168/** 168​/**
169 * @internal 169​ * @internal
170 **/ 170​ **/
171KWINXRENDERUTILS_EXPORT void init(xcb_connection_t *connection, xcb_window_t rootWindow); 171​KWINXRENDERUTILS_EXPORT void init(xcb_connection_t *connection, xcb_window_t rootWindow);
172 172​
173/** 173​/**
174 * Returns the Xrender format that corresponds to the given visual ID. 174​ * Returns the Xrender format that corresponds to the given visual ID.
175 */ 175​ **/
176KWINXRENDERUTILS_EXPORT xcb_render_pictformat_t findPictFormat(xcb_visualid_t visual); 176​KWINXRENDERUTILS_EXPORT xcb_render_pictformat_t findPictFormat(xcb_visualid_t visual);
177 177​
178/** 178​/**
179 * Returns the xcb_render_directformat_t for the given Xrender format. 179​ * Returns the xcb_render_directformat_t for the given Xrender format.
180 */ 180​ **/
181KWINXRENDERUTILS_EXPORT const xcb_render_directformat_t *findPictFormatInfo(xcb_render_pictformat_t format); 181​KWINXRENDERUTILS_EXPORT const xcb_render_directformat_t *findPictFormatInfo(xcb_render_pictformat_t format);
182 182​
183/** 183​/**
184 * @internal 184​ * @internal
185 **/ 185​ **/
186KWINXRENDERUTILS_EXPORT void cleanup(); 186​KWINXRENDERUTILS_EXPORT void cleanup();
187 187​
188} // namespace XRenderUtils 188​} // namespace XRenderUtils
189 189​
190} // namespace KWin 190​} // namespace KWin
191 191​
192/** @} */ 192​/** @} */
193 193​
194#endif 194​#endif