kmscube: improve egl config prints
[android/external-libkmsxx.git] / kmscube / cube-egl.cpp
1 #include "cube-egl.h"
2 #include "cube.h"
4 #include <kms++util/kms++util.h>
6 using namespace std;
8 static void print_egl_config(EGLDisplay dpy, EGLConfig cfg)
9 {
10         auto getconf = [dpy, cfg](EGLint a) { EGLint v = -1; eglGetConfigAttrib(dpy, cfg, a, &v); return v; };
12         printf("EGL Config %d: color buf %d/%d/%d/%d = %d, depth %d, stencil %d, native visualid %d, native visualtype %d\n",
13                getconf(EGL_CONFIG_ID),
14                getconf(EGL_ALPHA_SIZE),
15                getconf(EGL_RED_SIZE),
16                getconf(EGL_GREEN_SIZE),
17                getconf(EGL_BLUE_SIZE),
18                getconf(EGL_BUFFER_SIZE),
19                getconf(EGL_DEPTH_SIZE),
20                getconf(EGL_STENCIL_SIZE),
21                getconf(EGL_NATIVE_VISUAL_ID),
22                getconf(EGL_NATIVE_VISUAL_TYPE));
23 }
25 EglState::EglState(void *native_display)
26 {
27         EGLBoolean b;
28         EGLint major, minor, n;
30         static const EGLint context_attribs[] = {
31                 EGL_CONTEXT_CLIENT_VERSION, 2,
32                 EGL_NONE
33         };
35         static const EGLint config_attribs[] = {
36                 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
37                 EGL_RED_SIZE, 8,
38                 EGL_GREEN_SIZE, 8,
39                 EGL_BLUE_SIZE, 8,
40                 EGL_ALPHA_SIZE, 0,
41                 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
42                 EGL_NONE
43         };
45         m_display = eglGetDisplay((EGLNativeDisplayType)native_display);
46         FAIL_IF(!m_display, "failed to get egl display");
48         b = eglInitialize(m_display, &major, &minor);
49         FAIL_IF(!b, "failed to initialize");
51         if (s_verbose) {
52                 printf("Using display %p with EGL version %d.%d\n", m_display, major, minor);
54                 printf("EGL_VENDOR:      %s\n", eglQueryString(m_display, EGL_VENDOR));
55                 printf("EGL_VERSION:     %s\n", eglQueryString(m_display, EGL_VERSION));
56                 printf("EGL_EXTENSIONS:  %s\n", eglQueryString(m_display, EGL_EXTENSIONS));
57                 printf("EGL_CLIENT_APIS: %s\n", eglQueryString(m_display, EGL_CLIENT_APIS));
58         }
60         b = eglBindAPI(EGL_OPENGL_ES_API);
61         FAIL_IF(!b, "failed to bind api EGL_OPENGL_ES_API");
64         if (s_verbose) {
65                 EGLint numConfigs;
66                 b = eglGetConfigs(m_display, nullptr, 0, &numConfigs);
67                 FAIL_IF(!b, "failed to get number of configs");
69                 EGLConfig configs[numConfigs];
70                 b = eglGetConfigs(m_display, configs, numConfigs, &numConfigs);
72                 printf("Available configs:\n");
74                 for (int i = 0; i < numConfigs; ++i)
75                         print_egl_config(m_display, configs[i]);
76         }
78         b = eglChooseConfig(m_display, config_attribs, &m_config, 1, &n);
79         FAIL_IF(!b || n != 1, "failed to choose config");
81         if (s_verbose) {
82                 printf("Chosen config:\n");
83                 print_egl_config(m_display, m_config);
84         }
86         m_context = eglCreateContext(m_display, m_config, EGL_NO_CONTEXT, context_attribs);
87         FAIL_IF(!m_context, "failed to create context");
89         EGLBoolean ok = eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, m_context);
90         FAIL_IF(!ok, "eglMakeCurrent() failed");
91 }
93 EglState::~EglState()
94 {
95         eglMakeCurrent(m_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
96         eglTerminate(m_display);
97 }
99 EglSurface::EglSurface(const EglState &egl, void *native_window)
100         : egl(egl)
102         esurface = eglCreateWindowSurface(egl.display(), egl.config(), (EGLNativeWindowType)native_window, NULL);
103         FAIL_IF(esurface == EGL_NO_SURFACE, "failed to create egl surface");
106 EglSurface::~EglSurface()
108         eglDestroySurface(egl.display(), esurface);
111 void EglSurface::make_current()
113         EGLBoolean ok = eglMakeCurrent(egl.display(), esurface, esurface, egl.context());
114         FAIL_IF(!ok, "eglMakeCurrent() failed");
117 void EglSurface::swap_buffers()
119         EGLBoolean ok = eglSwapBuffers(egl.display(), esurface);
120         FAIL_IF(!ok, "eglMakeCurrent() failed");