97b10ac484
Bug: skia: Change-Id: I5338d6abef062f7da420e8cddafa082bedcfff25 Reviewed-on: https://skia-review.googlesource.com/18310 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Joe Gregorio <jcgregorio@google.com>
82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "fiddle_main.h"
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#include <EGL/egl.h>
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#include <GLES2/gl2.h>
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static const EGLint configAttribs[] = {
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EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
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EGL_BLUE_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_RED_SIZE, 8,
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EGL_DEPTH_SIZE, 8,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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static const int pbufferWidth = 9;
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static const int pbufferHeight = 9;
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static const EGLint pbufferAttribs[] = {
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EGL_WIDTH, pbufferWidth,
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EGL_HEIGHT, pbufferHeight,
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EGL_NONE,
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};
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// create_grcontext implementation for EGL.
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sk_sp<GrContext> create_grcontext(std::ostringstream &driverinfo) {
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EGLDisplay eglDpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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if (EGL_NO_DISPLAY == eglDpy) {
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return nullptr;
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}
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EGLint major, minor;
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if (EGL_TRUE != eglInitialize(eglDpy, &major, &minor)) {
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return nullptr;
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}
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EGLint numConfigs;
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EGLConfig eglCfg;
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if (EGL_TRUE != eglChooseConfig(eglDpy, configAttribs, &eglCfg, 1, &numConfigs)) {
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return nullptr;
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}
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EGLSurface eglSurf = eglCreatePbufferSurface(eglDpy, eglCfg, pbufferAttribs);
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if (EGL_NO_SURFACE == eglSurf) {
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return nullptr;
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}
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if (EGL_TRUE != eglBindAPI(EGL_OPENGL_API)) {
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return nullptr;
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}
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EGLContext eglCtx = eglCreateContext(eglDpy, eglCfg, EGL_NO_CONTEXT, NULL);
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if (EGL_NO_CONTEXT == eglCtx) {
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return nullptr;
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}
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if (EGL_FALSE == eglMakeCurrent(eglDpy, eglSurf, eglSurf, eglCtx)) {
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return nullptr;
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}
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driverinfo << "EGL " << major << "." << minor << "\n";
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GrGLGetStringProc getString = (GrGLGetStringProc )eglGetProcAddress("glGetString");
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driverinfo << "GL Versionr: " << getString(GL_VERSION) << "\n";
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driverinfo << "GL Vendor: " << getString(GL_VENDOR) << "\n";
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driverinfo << "GL Renderer: " << getString(GL_RENDERER) << "\n";
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driverinfo << "GL Extensions: " << getString(GL_EXTENSIONS) << "\n";
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auto interface = GrGLCreateNativeInterface();
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if (!interface) {
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return nullptr;
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}
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eglTerminate(eglDpy);
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return sk_sp<GrContext>(GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)interface));
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}
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