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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef libEGL_hpp
#define libEGL_hpp
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include "Common/SharedLibrary.hpp"
class LibEGLexports
{
public:
LibEGLexports();
EGLint (*eglGetError)(void);
EGLDisplay (*eglGetDisplay)(EGLNativeDisplayType display_id);
EGLBoolean (*eglInitialize)(EGLDisplay dpy, EGLint *major, EGLint *minor);
EGLBoolean (*eglTerminate)(EGLDisplay dpy);
const char *(*eglQueryString)(EGLDisplay dpy, EGLint name);
EGLBoolean (*eglGetConfigs)(EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
EGLBoolean (*eglChooseConfig)(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
EGLBoolean (*eglGetConfigAttrib)(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
EGLSurface (*eglCreateWindowSurface)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType window, const EGLint *attrib_list);
EGLSurface (*eglCreatePbufferSurface)(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
EGLSurface (*eglCreatePixmapSurface)(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint *attrib_list);
EGLBoolean (*eglDestroySurface)(EGLDisplay dpy, EGLSurface surface);
EGLBoolean (*eglQuerySurface)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value);
EGLBoolean (*eglBindAPI)(EGLenum api);
EGLenum (*eglQueryAPI)(void);
EGLBoolean (*eglWaitClient)(void);
EGLBoolean (*eglReleaseThread)(void);
EGLSurface (*eglCreatePbufferFromClientBuffer)(EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list);
EGLBoolean (*eglSurfaceAttrib)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value);
EGLBoolean (*eglBindTexImage)(EGLDisplay dpy, EGLSurface surface, EGLint buffer);
EGLBoolean (*eglReleaseTexImage)(EGLDisplay dpy, EGLSurface surface, EGLint buffer);
EGLBoolean (*eglSwapInterval)(EGLDisplay dpy, EGLint interval);
EGLContext (*eglCreateContext)(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list);
EGLBoolean (*eglDestroyContext)(EGLDisplay dpy, EGLContext ctx);
EGLBoolean (*eglMakeCurrent)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
EGLContext (*eglGetCurrentContext)(void);
EGLSurface (*eglGetCurrentSurface)(EGLint readdraw);
EGLDisplay (*eglGetCurrentDisplay)(void);
EGLBoolean (*eglQueryContext)(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value);
EGLBoolean (*eglWaitGL)(void);
EGLBoolean (*eglWaitNative)(EGLint engine);
EGLBoolean (*eglSwapBuffers)(EGLDisplay dpy, EGLSurface surface);
EGLBoolean (*eglCopyBuffers)(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target);
EGLImageKHR (*eglCreateImageKHR)(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
EGLBoolean (*eglDestroyImageKHR)(EGLDisplay dpy, EGLImageKHR image);
__eglMustCastToProperFunctionPointerType (*eglGetProcAddress)(const char*);
EGLSyncKHR (*eglCreateSyncKHR)(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list);
EGLBoolean (*eglDestroySyncKHR)(EGLDisplay dpy, EGLSyncKHR sync);
EGLint (*eglClientWaitSyncKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout);
EGLBoolean (*eglGetSyncAttribKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value);
// Functions that don't change the error code, for use by client APIs
egl::Context *(*clientGetCurrentContext)();
};
class LibEGL
{
public:
LibEGL()
{
}
~LibEGL()
{
freeLibrary(libEGL);
}
LibEGLexports *operator->()
{
return loadExports();
}
private:
LibEGLexports *loadExports()
{
if(!libEGL)
{
#if defined(_WIN32)
#if defined(__LP64__)
const char *libEGL_lib[] = {"libEGL.dll", "lib64EGL_translator.dll"};
#else
const char *libEGL_lib[] = {"libEGL.dll", "libEGL_translator.dll"};
#endif
#elif defined(__ANDROID__)
const char *libEGL_lib[] = {"libEGL_swiftshader.so", "libEGL_swiftshader.so"};
#elif defined(__linux__)
#if defined(__LP64__)
const char *libEGL_lib[] = {"lib64EGL_translator.so", "libEGL.so.1", "libEGL.so"};
#else
const char *libEGL_lib[] = {"libEGL_translator.so", "libEGL.so.1", "libEGL.so"};
#endif
#elif defined(__APPLE__)
#if defined(__LP64__)
const char *libEGL_lib[] = {"libswiftshader_libEGL.dylib", "lib64EGL_translator.dylib", "libEGL.so", "libEGL.dylib"};
#else
const char *libEGL_lib[] = {"libswiftshader_libEGL.dylib", "libEGL_translator.dylib", "libEGL.so", "libEGL.dylib"};
#endif
#elif defined(__Fuchsia__)
const char *libEGL_lib[] = {"libswiftshader_libEGL.so", "libEGL.so"};
#else
#error "libEGL::loadExports unimplemented for this platform"
#endif
std::string directory = getModuleDirectory();
libEGL = loadLibrary(directory, libEGL_lib, "libEGL_swiftshader");
if(libEGL)
{
auto libEGL_swiftshader = (LibEGLexports *(*)())getProcAddress(libEGL, "libEGL_swiftshader");
libEGLexports = libEGL_swiftshader();
}
}
return libEGLexports;
}
void *libEGL = nullptr;
LibEGLexports *libEGLexports = nullptr;
};
#endif // libEGL_hpp