qxlibeglintegration.cpp

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3** Copyright (C) 2015 The Qt Company Ltd.-
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32****************************************************************************/-
33-
34#include <QLoggingCategory>-
35#include "qxlibeglintegration_p.h"-
36-
37Q_LOGGING_CATEGORY(lcXlibEglDebug, "qt.egl.xlib.debug")
never executed: return category;
0
38-
39VisualID QXlibEglIntegration::getCompatibleVisualId(Display *display, EGLDisplay eglDisplay, EGLConfig config)-
40{-
41 VisualID visualId = 0;-
42 EGLint eglValue = 0;-
43-
44 EGLint configRedSize = 0;-
45 eglGetConfigAttrib(eglDisplay, config, EGL_RED_SIZE, &configRedSize);-
46-
47 EGLint configGreenSize = 0;-
48 eglGetConfigAttrib(eglDisplay, config, EGL_GREEN_SIZE, &configGreenSize);-
49-
50 EGLint configBlueSize = 0;-
51 eglGetConfigAttrib(eglDisplay, config, EGL_BLUE_SIZE, &configBlueSize);-
52-
53 EGLint configAlphaSize = 0;-
54 eglGetConfigAttrib(eglDisplay, config, EGL_ALPHA_SIZE, &configAlphaSize);-
55-
56 eglGetConfigAttrib(eglDisplay, config, EGL_CONFIG_ID, &eglValue);-
57 int configId = eglValue;-
58-
59 // See if EGL provided a valid VisualID:-
60 eglGetConfigAttrib(eglDisplay, config, EGL_NATIVE_VISUAL_ID, &eglValue);-
61 visualId = (VisualID)eglValue;-
62 if (visualId) {
visualIdDescription
TRUEnever evaluated
FALSEnever evaluated
0
63 // EGL has suggested a visual id, so get the rest of the visual info for that id:-
64 XVisualInfo visualInfoTemplate;-
65 memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));-
66 visualInfoTemplate.visualid = visualId;-
67-
68 XVisualInfo *chosenVisualInfo;-
69 int matchingCount = 0;-
70 chosenVisualInfo = XGetVisualInfo(display, VisualIDMask, &visualInfoTemplate, &matchingCount);-
71 if (chosenVisualInfo) {
chosenVisualInfoDescription
TRUEnever evaluated
FALSEnever evaluated
0
72 // Skip size checks if implementation supports non-matching visual-
73 // and config (QTBUG-9444).-
74 if (q_hasEglExtension(eglDisplay,"EGL_NV_post_convert_rounding")) {
q_hasEglExtens...ert_rounding")Description
TRUEnever evaluated
FALSEnever evaluated
0
75 XFree(chosenVisualInfo);-
76 return visualId;
never executed: return visualId;
0
77 }-
78 // Skip also for i.MX6 where 565 visuals are suggested for the default 444 configs and it works just fine.-
79 const char *vendor = eglQueryString(eglDisplay, EGL_VENDOR);-
80 if (vendor && strstr(vendor, "Vivante")) {
vendorDescription
TRUEnever evaluated
FALSEnever evaluated
strstr(vendor, "Vivante")Description
TRUEnever evaluated
FALSEnever evaluated
0
81 XFree(chosenVisualInfo);-
82 return visualId;
never executed: return visualId;
0
83 }-
84-
85 int visualRedSize = qPopulationCount(chosenVisualInfo->red_mask);-
86 int visualGreenSize = qPopulationCount(chosenVisualInfo->green_mask);-
87 int visualBlueSize = qPopulationCount(chosenVisualInfo->blue_mask);-
88 int visualAlphaSize = chosenVisualInfo->depth == 32 ? 8 : 0;
chosenVisualInfo->depth == 32Description
TRUEnever evaluated
FALSEnever evaluated
0
89-
90 const bool visualMatchesConfig = visualRedSize == configRedSize
visualRedSize == configRedSizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
91 && visualGreenSize == configGreenSize
visualGreenSiz...onfigGreenSizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
92 && visualBlueSize == configBlueSize
visualBlueSize...configBlueSizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
93 && visualAlphaSize == configAlphaSize;
visualAlphaSiz...onfigAlphaSizeDescription
TRUEnever evaluated
FALSEnever evaluated
0
94-
95 // In some cases EGL tends to suggest a 24-bit visual for 8888-
96 // configs. In such a case we have to fall back to XGetVisualInfo.-
97 if (!visualMatchesConfig) {
!visualMatchesConfigDescription
TRUEnever evaluated
FALSEnever evaluated
0
98 visualId = 0;-
99 qCDebug(lcXlibEglDebug,
never executed: QMessageLogger( __FILE__ , 103 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d" "(%d %d %d %d), but this is incompatible", (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth, configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize) ;
qt_category_enabledDescription
TRUEnever evaluated
FALSEnever evaluated
0
100 "EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d"
never executed: QMessageLogger( __FILE__ , 103 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d" "(%d %d %d %d), but this is incompatible", (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth, configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize) ;
0
101 "(%d %d %d %d), but this is incompatible",
never executed: QMessageLogger( __FILE__ , 103 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d" "(%d %d %d %d), but this is incompatible", (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth, configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize) ;
0
102 (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth,
never executed: QMessageLogger( __FILE__ , 103 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d" "(%d %d %d %d), but this is incompatible", (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth, configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize) ;
0
103 configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize);
never executed: QMessageLogger( __FILE__ , 103 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d (%d %d %d depth %d) for EGL config %d" "(%d %d %d %d), but this is incompatible", (int)visualId, visualRedSize, visualGreenSize, visualBlueSize, chosenVisualInfo->depth, configId, configRedSize, configGreenSize, configBlueSize, configAlphaSize) ;
0
104 }
never executed: end of block
0
105 } else {
never executed: end of block
0
106 qCDebug(lcXlibEglDebug, "EGL suggested using X Visual ID %d for EGL config %d, but that isn't a valid ID",
never executed: QMessageLogger( __FILE__ , 107 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d for EGL config %d, but that isn't a valid ID", (int)visualId, configId) ;
qt_category_enabledDescription
TRUEnever evaluated
FALSEnever evaluated
0
107 (int)visualId, configId);
never executed: QMessageLogger( __FILE__ , 107 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL suggested using X Visual ID %d for EGL config %d, but that isn't a valid ID", (int)visualId, configId) ;
0
108 visualId = 0;-
109 }
never executed: end of block
0
110 XFree(chosenVisualInfo);-
111 }
never executed: end of block
0
112 else-
113 qCDebug(lcXlibEglDebug, "EGL did not suggest a VisualID (EGL_NATIVE_VISUAL_ID was zero) for EGLConfig %d", configId);
never executed: QMessageLogger(__FILE__, 113, __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("EGL did not suggest a VisualID (EGL_NATIVE_VISUAL_ID was zero) for EGLConfig %d", configId);
qt_category_enabledDescription
TRUEnever evaluated
FALSEnever evaluated
0
114-
115 if (visualId) {
visualIdDescription
TRUEnever evaluated
FALSEnever evaluated
0
116 qCDebug(lcXlibEglDebug, configAlphaSize > 0
never executed: QMessageLogger( __FILE__ , 118 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug(configAlphaSize > 0 ? "Using ARGB Visual ID %d provided by EGL for config %d" : "Using Opaque Visual ID %d provided by EGL for config %d", (int)visualId, configId) ;
qt_category_enabledDescription
TRUEnever evaluated
FALSEnever evaluated
0
117 ? "Using ARGB Visual ID %d provided by EGL for config %d"
never executed: QMessageLogger( __FILE__ , 118 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug(configAlphaSize > 0 ? "Using ARGB Visual ID %d provided by EGL for config %d" : "Using Opaque Visual ID %d provided by EGL for config %d", (int)visualId, configId) ;
0
118 : "Using Opaque Visual ID %d provided by EGL for config %d", (int)visualId, configId);
never executed: QMessageLogger( __FILE__ , 118 , __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug(configAlphaSize > 0 ? "Using ARGB Visual ID %d provided by EGL for config %d" : "Using Opaque Visual ID %d provided by EGL for config %d", (int)visualId, configId) ;
0
119 return visualId;
never executed: return visualId;
0
120 }-
121-
122 // Finally, try to use XGetVisualInfo and only use the bit depths to match on:-
123 if (!visualId) {
!visualIdDescription
TRUEnever evaluated
FALSEnever evaluated
0
124 XVisualInfo visualInfoTemplate;-
125 memset(&visualInfoTemplate, 0, sizeof(XVisualInfo));-
126 XVisualInfo *matchingVisuals;-
127 int matchingCount = 0;-
128-
129 visualInfoTemplate.depth = configRedSize + configGreenSize + configBlueSize + configAlphaSize;-
130 matchingVisuals = XGetVisualInfo(display,-
131 VisualDepthMask,-
132 &visualInfoTemplate,-
133 &matchingCount);-
134 if (!matchingVisuals) {
!matchingVisualsDescription
TRUEnever evaluated
FALSEnever evaluated
0
135 // Try again without taking the alpha channel into account:-
136 visualInfoTemplate.depth = configRedSize + configGreenSize + configBlueSize;-
137 matchingVisuals = XGetVisualInfo(display,-
138 VisualDepthMask,-
139 &visualInfoTemplate,-
140 &matchingCount);-
141 }
never executed: end of block
0
142-
143 if (matchingVisuals) {
matchingVisualsDescription
TRUEnever evaluated
FALSEnever evaluated
0
144 visualId = matchingVisuals[0].visualid;-
145 XFree(matchingVisuals);-
146 }
never executed: end of block
0
147 }
never executed: end of block
0
148-
149 if (visualId) {
visualIdDescription
TRUEnever evaluated
FALSEnever evaluated
0
150 qCDebug(lcXlibEglDebug, "Using Visual ID %d provided by XGetVisualInfo for EGL config %d", (int)visualId, configId);
never executed: QMessageLogger(__FILE__, 150, __PRETTY_FUNCTION__, lcXlibEglDebug().categoryName()).debug("Using Visual ID %d provided by XGetVisualInfo for EGL config %d", (int)visualId, configId);
qt_category_enabledDescription
TRUEnever evaluated
FALSEnever evaluated
0
151 return visualId;
never executed: return visualId;
0
152 }-
153-
154 qWarning("Unable to find an X11 visual which matches EGL config %d", configId);-
155 return (VisualID)0;
never executed: return (VisualID)0;
0
156}-
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