89 lines
2.3 KiB
C++
89 lines
2.3 KiB
C++
#pragma once
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#include <wayland-egl.h>
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#include <EGL/egl.h>
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#include <GLES2/gl2.h>
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class WaylandEglInterface
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{
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public:
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void initialize(wl_display* display)
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{
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mEglDisplay = eglGetDisplay((EGLNativeDisplayType) display);
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if (mEglDisplay == EGL_NO_DISPLAY)
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{
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fprintf(stderr, "Can't create egl display\n");
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return;
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}
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else
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{
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fprintf(stderr, "Created egl display\n");
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}
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EGLint major{0};
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EGLint minor{0};
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if (eglInitialize(mEglDisplay, &major, &minor) != EGL_TRUE)
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{
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fprintf(stderr, "Can't initialise egl display\n");
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return;
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}
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printf("EGL major: %d, minor %d\n", major, minor);
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EGLint count{0};
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eglGetConfigs(mEglDisplay, nullptr, 0, &count);
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printf("EGL has %d configs\n", count);
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EGLConfig* configs;
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configs = static_cast<EGLConfig*>(calloc(count, sizeof* configs));
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EGLint n{0};
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EGLint config_attribs[] = {
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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EGL_RED_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_BLUE_SIZE, 8,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
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EGL_NONE
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};
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eglChooseConfig(mEglDisplay, config_attribs, configs, count, &n);
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EGLint size{0};
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for (int i = 0; i < n; i++)
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{
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eglGetConfigAttrib(mEglDisplay, configs[i], EGL_BUFFER_SIZE, &size);
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printf("Buffer size for config %d is %d\n", i, size);
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eglGetConfigAttrib(mEglDisplay, configs[i], EGL_RED_SIZE, &size);
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printf("Red size for config %d is %d\n", i, size);
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// just choose the first one
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mEglConfig = configs[i];
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break;
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}
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static const EGLint context_attribs[] = {
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EGL_CONTEXT_CLIENT_VERSION, 2,
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EGL_NONE
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};
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mEglContext = eglCreateContext(mEglDisplay, mEglConfig, EGL_NO_CONTEXT, context_attribs);
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}
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EGLDisplay getDisplay() const
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{
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return mEglDisplay;
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}
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EGLConfig getConfig() const
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{
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return mEglConfig;
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}
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EGLContext getContext() const
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{
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return mEglContext;
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}
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private:
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EGLDisplay mEglDisplay;
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EGLConfig mEglConfig;
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EGLContext mEglContext;
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};
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