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39
40#include "qeglstreamconvenience_p.h"
41#include <string.h>
42
43QT_BEGIN_NAMESPACE
44
45QEGLStreamConvenience::QEGLStreamConvenience()
46 : initialized(false),
47 has_egl_platform_device(false),
48 has_egl_device_base(false),
49 has_egl_stream(false),
50 has_egl_stream_producer_eglsurface(false),
51 has_egl_stream_consumer_egloutput(false),
52 has_egl_output_drm(false),
53 has_egl_output_base(false),
54 has_egl_stream_cross_process_fd(false),
55 has_egl_stream_consumer_gltexture(false)
56{
57 const char *extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
58 if (!extensions) {
59 qWarning(msg: "Failed to query EGL extensions");
60 return;
61 }
62
63 query_devices = reinterpret_cast<PFNEGLQUERYDEVICESEXTPROC>(eglGetProcAddress(procname: "eglQueryDevicesEXT"));
64 query_device_string = reinterpret_cast<PFNEGLQUERYDEVICESTRINGEXTPROC>(eglGetProcAddress(procname: "eglQueryDeviceStringEXT"));
65 get_platform_display = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(eglGetProcAddress(procname: "eglGetPlatformDisplayEXT"));
66
67 has_egl_device_base = strstr(haystack: extensions, needle: "EGL_EXT_device_base");
68 has_egl_platform_device = strstr(haystack: extensions, needle: "EGL_EXT_platform_device");
69}
70
71void QEGLStreamConvenience::initialize(EGLDisplay dpy)
72{
73 if (initialized)
74 return;
75
76 if (!eglBindAPI(EGL_OPENGL_ES_API)) {
77 qWarning(msg: "Failed to bind OpenGL ES API");
78 return;
79 }
80
81 const char *extensions = eglQueryString(dpy, EGL_EXTENSIONS);
82 if (!extensions) {
83 qWarning(msg: "Failed to query EGL extensions");
84 return;
85 }
86
87 create_stream = reinterpret_cast<PFNEGLCREATESTREAMKHRPROC>(eglGetProcAddress(procname: "eglCreateStreamKHR"));
88 destroy_stream = reinterpret_cast<PFNEGLDESTROYSTREAMKHRPROC>(eglGetProcAddress(procname: "eglDestroyStreamKHR"));
89 stream_attrib = reinterpret_cast<PFNEGLSTREAMATTRIBKHRPROC>(eglGetProcAddress(procname: "eglStreamAttribKHR"));
90 query_stream = reinterpret_cast<PFNEGLQUERYSTREAMKHRPROC>(eglGetProcAddress(procname: "eglQueryStreamKHR"));
91 query_stream_u64 = reinterpret_cast<PFNEGLQUERYSTREAMU64KHRPROC>(eglGetProcAddress(procname: "eglQueryStreamu64KHR"));
92 create_stream_producer_surface = reinterpret_cast<PFNEGLCREATESTREAMPRODUCERSURFACEKHRPROC>(eglGetProcAddress(procname: "eglCreateStreamProducerSurfaceKHR"));
93 stream_consumer_output = reinterpret_cast<PFNEGLSTREAMCONSUMEROUTPUTEXTPROC>(eglGetProcAddress(procname: "eglStreamConsumerOutputEXT"));
94 get_output_layers = reinterpret_cast<PFNEGLGETOUTPUTLAYERSEXTPROC>(eglGetProcAddress(procname: "eglGetOutputLayersEXT"));
95 get_output_ports = reinterpret_cast<PFNEGLGETOUTPUTPORTSEXTPROC>(eglGetProcAddress(procname: "eglGetOutputPortsEXT"));
96 output_layer_attrib = reinterpret_cast<PFNEGLOUTPUTLAYERATTRIBEXTPROC>(eglGetProcAddress(procname: "eglOutputLayerAttribEXT"));
97 query_output_layer_attrib = reinterpret_cast<PFNEGLQUERYOUTPUTLAYERATTRIBEXTPROC>(eglGetProcAddress(procname: "eglQueryOutputLayerAttribEXT"));
98 query_output_layer_string = reinterpret_cast<PFNEGLQUERYOUTPUTLAYERSTRINGEXTPROC>(eglGetProcAddress(procname: "eglQueryOutputLayerStringEXT"));
99 query_output_port_attrib = reinterpret_cast<PFNEGLQUERYOUTPUTPORTATTRIBEXTPROC>(eglGetProcAddress(procname: "eglQueryOutputPortAttribEXT"));
100 query_output_port_string = reinterpret_cast<PFNEGLQUERYOUTPUTPORTSTRINGEXTPROC>(eglGetProcAddress(procname: "eglQueryOutputPortStringEXT"));
101 get_stream_file_descriptor = reinterpret_cast<PFNEGLGETSTREAMFILEDESCRIPTORKHRPROC>(eglGetProcAddress(procname: "eglGetStreamFileDescriptorKHR"));
102 create_stream_from_file_descriptor = reinterpret_cast<PFNEGLCREATESTREAMFROMFILEDESCRIPTORKHRPROC>(eglGetProcAddress(procname: "eglCreateStreamFromFileDescriptorKHR"));
103 stream_consumer_gltexture = reinterpret_cast<PFNEGLSTREAMCONSUMERGLTEXTUREEXTERNALKHRPROC>(eglGetProcAddress(procname: "eglStreamConsumerGLTextureExternalKHR"));
104 stream_consumer_acquire = reinterpret_cast<PFNEGLSTREAMCONSUMERACQUIREKHRPROC>(eglGetProcAddress(procname: "eglStreamConsumerAcquireKHR"));
105 stream_consumer_release = reinterpret_cast<PFNEGLSTREAMCONSUMERRELEASEKHRPROC>(eglGetProcAddress(procname: "eglStreamConsumerReleaseKHR"));
106 create_stream_attrib_nv = reinterpret_cast<PFNEGLCREATESTREAMATTRIBNVPROC>(eglGetProcAddress(procname: "eglCreateStreamAttribNV"));
107 set_stream_attrib_nv = reinterpret_cast<PFNEGLSETSTREAMATTRIBNVPROC>(eglGetProcAddress(procname: "eglSetStreamAttribNV"));
108 query_stream_attrib_nv = reinterpret_cast<PFNEGLQUERYSTREAMATTRIBNVPROC>(eglGetProcAddress(procname: "eglQueryStreamAttribNV"));
109 acquire_stream_attrib_nv = reinterpret_cast<PFNEGLSTREAMCONSUMERACQUIREATTRIBNVPROC>(eglGetProcAddress(procname: "eglStreamConsumerAcquireAttribNV"));
110 release_stream_attrib_nv = reinterpret_cast<PFNEGLSTREAMCONSUMERRELEASEATTRIBNVPROC>(eglGetProcAddress(procname: "eglStreamConsumerReleaseAttribNV"));
111
112 has_egl_stream = strstr(haystack: extensions, needle: "EGL_KHR_stream");
113 has_egl_stream_producer_eglsurface = strstr(haystack: extensions, needle: "EGL_KHR_stream_producer_eglsurface");
114 has_egl_stream_consumer_egloutput = strstr(haystack: extensions, needle: "EGL_EXT_stream_consumer_egloutput");
115 has_egl_output_drm = strstr(haystack: extensions, needle: "EGL_EXT_output_drm");
116 has_egl_output_base = strstr(haystack: extensions, needle: "EGL_EXT_output_base");
117 has_egl_stream_cross_process_fd = strstr(haystack: extensions, needle: "EGL_KHR_stream_cross_process_fd");
118 has_egl_stream_consumer_gltexture = strstr(haystack: extensions, needle: "EGL_KHR_stream_consumer_gltexture");
119
120 initialized = true;
121}
122
123QT_END_NAMESPACE
124

source code of qtbase/src/platformsupport/eglconvenience/qeglstreamconvenience.cpp