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Diffstat (limited to 'modules/gles/egl/egl_base.cpp')
| -rw-r--r-- | modules/gles/egl/egl_base.cpp | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/modules/gles/egl/egl_base.cpp b/modules/gles/egl/egl_base.cpp new file mode 100644 index 0000000..6ee0b4c --- /dev/null +++ b/modules/gles/egl/egl_base.cpp @@ -0,0 +1,195 @@ +/* + * egl_base.cpp - EGL base implementation + * + * Copyright (c) 2018 Intel Corporation + * + * 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. + * + * Author: Yinhang Liu <yinhangx.liu@intel.com> + */ + +#include "egl_base.h" + +namespace XCam { + +EGLBase::EGLBase () + : _display (EGL_NO_DISPLAY) + , _context (EGL_NO_CONTEXT) + , _surface (EGL_NO_SURFACE) +{ +} + +EGLBase::~EGLBase () +{ + if (_display != EGL_NO_DISPLAY) { + if (_context != EGL_NO_CONTEXT) { + destroy_context (_display, _context); + _context = EGL_NO_CONTEXT; + } + + if (_surface != EGL_NO_SURFACE) { + destroy_surface (_display, _surface); + _surface = EGL_NO_SURFACE; + } + + terminate (_display); + _display = EGL_NO_DISPLAY; + } +} + +bool +EGLBase::init () +{ + bool ret = get_display (EGL_DEFAULT_DISPLAY, _display); + XCAM_FAIL_RETURN (ERROR, ret, false, "EGLInit: get display failed"); + + EGLint major, minor; + ret = initialize (_display, &major, &minor); + XCAM_FAIL_RETURN (ERROR, ret, false, "EGLInit: EGL initialize failed"); + XCAM_LOG_INFO ("EGL version: %d.%d", major, minor); + + EGLConfig configs; + EGLint num_config; + EGLint cfg_attribs[] = {EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR, EGL_NONE}; + ret = choose_config (_display, cfg_attribs, &configs, 1, &num_config); + XCAM_FAIL_RETURN (ERROR, ret, false, "EGLInit: choose config failed"); + + EGLint ctx_attribs[] = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE}; + ret = create_context (_display, configs, EGL_NO_CONTEXT, ctx_attribs, _context); + XCAM_FAIL_RETURN (ERROR, ret, false, "EGLInit: create context failed"); + + ret = make_current (_display, _surface, _surface, _context); + XCAM_FAIL_RETURN (ERROR, ret, false, "EGLInit: make current failed"); + + return true; +} + +bool +EGLBase::get_display (NativeDisplayType native_display, EGLDisplay &display) +{ + display = eglGetDisplay (native_display); + XCAM_FAIL_RETURN ( + ERROR, display != EGL_NO_DISPLAY, false, + "EGLInit: get display failed"); + return true; +} + +bool +EGLBase::initialize (EGLDisplay display, EGLint *major, EGLint *minor) +{ + EGLBoolean ret = eglInitialize (display, major, minor); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: initialize failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + return true; +} + +bool +EGLBase::choose_config ( + EGLDisplay display, EGLint const *attribs, EGLConfig *configs, + EGLint config_size, EGLint *num_config) +{ + EGLBoolean ret = eglChooseConfig (display, attribs, configs, config_size, num_config); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: choose config failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + return true; +} + +bool +EGLBase::create_context ( + EGLDisplay display, EGLConfig config, EGLContext share_context, EGLint const *attribs, + EGLContext &context) +{ + context = eglCreateContext (display, config, share_context, attribs); + XCAM_FAIL_RETURN ( + ERROR, context != EGL_NO_CONTEXT, false, + "EGLInit: create context failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + return true; +} + +bool +EGLBase::create_window_surface ( + EGLDisplay display, EGLConfig config, NativeWindowType native_window, EGLint const *attribs, + EGLSurface &surface) +{ + surface = eglCreateWindowSurface (display, config, native_window, attribs); + XCAM_FAIL_RETURN ( + ERROR, surface != EGL_NO_SURFACE, false, + "EGLInit: create window surface failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + return true; +} + +bool +EGLBase::make_current (EGLDisplay display, EGLSurface draw, EGLSurface read, EGLContext context) +{ + EGLBoolean ret = eglMakeCurrent (display, draw, read, context); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: make current failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + return true; +} + +bool +EGLBase::swap_buffers (EGLDisplay display, EGLSurface surface) +{ + EGLBoolean ret = eglSwapBuffers (display, surface); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: swap buffers failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + return true; +} + +bool +EGLBase::destroy_context (EGLDisplay display, EGLContext &context) +{ + EGLBoolean ret = eglDestroyContext (display, context); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: destroy context failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + XCAM_FAIL_RETURN (ERROR, ret == EGL_TRUE, false, "EGLInit: destroy context failed"); + return true; +} + +bool +EGLBase::destroy_surface (EGLDisplay display, EGLSurface &surface) +{ + EGLBoolean ret = eglDestroySurface (display, surface); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: destroy surface failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + XCAM_FAIL_RETURN (ERROR, ret == EGL_TRUE, false, "EGLInit: destroy surface failed"); + return true; +} + +bool +EGLBase::terminate (EGLDisplay display) +{ + EGLBoolean ret = eglTerminate (display); + XCAM_FAIL_RETURN ( + ERROR, ret == EGL_TRUE, false, + "EGLInit: terminate failed, error flag: %s", + EGL::error_string (EGL::get_error ())); + XCAM_FAIL_RETURN (ERROR, ret == EGL_TRUE, false, "EGLInit: terminate failed"); + return true; +} + +} |