2012-03-28 16:19:11 +00:00
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/*
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* Copyright 2012 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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2014-11-13 19:12:41 +00:00
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#include "gl/angle/SkANGLEGLContext.h"
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2012-03-28 16:19:11 +00:00
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SkANGLEGLContext::SkANGLEGLContext()
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: fContext(EGL_NO_CONTEXT)
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, fDisplay(EGL_NO_DISPLAY)
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, fSurface(EGL_NO_SURFACE) {
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2012-04-02 15:04:16 +00:00
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fDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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2012-03-28 16:19:11 +00:00
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EGLint majorVersion;
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EGLint minorVersion;
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2012-04-02 15:04:16 +00:00
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eglInitialize(fDisplay, &majorVersion, &minorVersion);
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2012-03-28 16:19:11 +00:00
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EGLint numConfigs;
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static const EGLint configAttribs[] = {
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EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_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_ALPHA_SIZE, 8,
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EGL_NONE
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};
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2012-04-02 15:04:16 +00:00
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EGLConfig surfaceConfig;
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eglChooseConfig(fDisplay, configAttribs, &surfaceConfig, 1, &numConfigs);
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2012-03-28 16:19:11 +00:00
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static const EGLint contextAttribs[] = {
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EGL_CONTEXT_CLIENT_VERSION, 2,
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EGL_NONE
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};
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2012-04-02 15:04:16 +00:00
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fContext = eglCreateContext(fDisplay, surfaceConfig, NULL, contextAttribs);
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2012-03-28 16:19:11 +00:00
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static const EGLint surfaceAttribs[] = {
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EGL_WIDTH, 1,
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EGL_HEIGHT, 1,
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EGL_NONE
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};
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2012-04-02 15:04:16 +00:00
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fSurface = eglCreatePbufferSurface(fDisplay, surfaceConfig, surfaceAttribs);
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2012-03-28 16:19:11 +00:00
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2012-04-02 15:04:16 +00:00
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eglMakeCurrent(fDisplay, fSurface, fSurface, fContext);
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2012-03-28 16:19:11 +00:00
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2014-10-16 06:03:54 +00:00
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fGL.reset(GrGLCreateANGLEInterface());
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if (NULL == fGL.get()) {
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2012-03-28 16:19:11 +00:00
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SkDebugf("Could not create ANGLE GL interface!\n");
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this->destroyGLContext();
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2014-10-16 06:03:54 +00:00
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return;
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}
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if (!fGL->validate()) {
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SkDebugf("Could not validate ANGLE GL interface!\n");
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this->destroyGLContext();
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return;
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2012-03-28 16:19:11 +00:00
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}
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2014-10-16 06:03:54 +00:00
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}
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2012-03-28 16:19:11 +00:00
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2014-10-16 06:03:54 +00:00
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SkANGLEGLContext::~SkANGLEGLContext() {
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this->destroyGLContext();
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}
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void SkANGLEGLContext::destroyGLContext() {
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fGL.reset(NULL);
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if (fDisplay) {
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eglMakeCurrent(fDisplay, 0, 0, 0);
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if (fContext) {
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eglDestroyContext(fDisplay, fContext);
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fContext = EGL_NO_CONTEXT;
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}
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if (fSurface) {
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eglDestroySurface(fDisplay, fSurface);
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fSurface = EGL_NO_SURFACE;
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}
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//TODO should we close the display?
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fDisplay = EGL_NO_DISPLAY;
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}
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2012-03-28 16:19:11 +00:00
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}
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void SkANGLEGLContext::makeCurrent() const {
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2012-04-02 15:04:16 +00:00
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if (!eglMakeCurrent(fDisplay, fSurface, fSurface, fContext)) {
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2012-03-28 16:19:11 +00:00
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SkDebugf("Could not set the context.\n");
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}
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}
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2013-10-09 18:25:38 +00:00
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void SkANGLEGLContext::swapBuffers() const {
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if (!eglSwapBuffers(fDisplay, fSurface)) {
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SkDebugf("Could not complete eglSwapBuffers.\n");
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}
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}
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