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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkOSWindow_Android.h"
#include <GLES/gl.h>
SkOSWindow::SkOSWindow(void* hwnd) {
fWindow.fDisplay = EGL_NO_DISPLAY;
fWindow.fContext = EGL_NO_CONTEXT;
fWindow.fSurface = EGL_NO_SURFACE;
fNativeWindow = (ANativeWindow*)hwnd;
fDestroyRequested = false;
}
SkOSWindow::~SkOSWindow() {
if (fWindow.fDisplay != EGL_NO_DISPLAY) {
eglMakeCurrent(fWindow.fDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
if (fWindow.fContext != EGL_NO_CONTEXT) {
eglDestroyContext(fWindow.fDisplay, fWindow.fContext);
}
if (fWindow.fSurface != EGL_NO_SURFACE) {
eglDestroySurface(fWindow.fDisplay, fWindow.fSurface);
}
eglTerminate(fWindow.fDisplay);
}
fWindow.fDisplay = EGL_NO_DISPLAY;
fWindow.fContext = EGL_NO_CONTEXT;
fWindow.fSurface = EGL_NO_SURFACE;
}
bool SkOSWindow::attach(SkBackEndTypes attachType,
int /*msaaSampleCount*/,
AttachmentInfo* info) {
static const EGLint kEGLContextAttribsForOpenGL[] = {
EGL_NONE
};
static const EGLint kEGLContextAttribsForOpenGLES[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
static const struct {
const EGLint* fContextAttribs;
EGLenum fAPI;
EGLint fRenderableTypeBit;
} kAPIs[] = {
{ // OpenGL
kEGLContextAttribsForOpenGL,
EGL_OPENGL_API,
EGL_OPENGL_BIT,
},
{ // OpenGL ES. This seems to work for both ES2 and 3 (when available).
kEGLContextAttribsForOpenGLES,
EGL_OPENGL_ES_API,
EGL_OPENGL_ES2_BIT,
},
};
size_t apiLimit = SK_ARRAY_COUNT(kAPIs);
for (size_t api = 0; api < apiLimit; ++api) {
EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
EGLint majorVersion;
EGLint minorVersion;
eglInitialize(display, &majorVersion, &minorVersion);
#if 0
SkDebugf("VENDOR: %s\n", eglQueryString(fDisplay, EGL_VENDOR));
SkDebugf("APIS: %s\n", eglQueryString(fDisplay, EGL_CLIENT_APIS));
SkDebugf("VERSION: %s\n", eglQueryString(fDisplay, EGL_VERSION));
SkDebugf("EXTENSIONS %s\n", eglQueryString(fDisplay, EGL_EXTENSIONS));
#endif
if (!eglBindAPI(kAPIs[api].fAPI)) {
continue;
}
const EGLint configAttribs[] = {
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
EGL_RENDERABLE_TYPE, kAPIs[api].fRenderableTypeBit,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8,
EGL_NONE
};
EGLint format;
EGLint numConfigs;
EGLConfig config;
EGLSurface surface;
EGLContext context;
/* Here, the application chooses the configuration it desires. In this
* sample, we have a very simplified selection process, where we pick
* the first EGLConfig that matches our criteria */
eglChooseConfig(display, configAttribs, &config, 1, &numConfigs);
/* EGL_NATIVE_VISUAL_ID is an attribute of the EGLConfig that is
* guaranteed to be accepted by ANativeWindow_setBuffersGeometry().
* As soon as we picked a EGLConfig, we can safely reconfigure the
* ANativeWindow buffers to match, using EGL_NATIVE_VISUAL_ID. */
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &format);
ANativeWindow_setBuffersGeometry(fNativeWindow, 0, 0, format);
surface = eglCreateWindowSurface(display, config, fNativeWindow, NULL);
context = eglCreateContext(display, config, NULL, kAPIs[api].fContextAttribs);
if (EGL_NO_CONTEXT == context) {
SkDebugf("eglCreateContext failed. EGL Error: 0x%08x\n", eglGetError());
continue;
}
if (!eglMakeCurrent(display, surface, surface, context)) {
SkDebugf("eglMakeCurrent failed. EGL Error: 0x%08x\n", eglGetError());
continue;
}
fWindow.fDisplay = display;
fWindow.fContext = context;
fWindow.fSurface = surface;
}
if (fWindow.fDisplay && fWindow.fContext && fWindow.fSurface) {
EGLint w, h;
eglQuerySurface(fWindow.fDisplay, fWindow.fSurface, EGL_WIDTH, &w);
eglQuerySurface(fWindow.fDisplay, fWindow.fSurface, EGL_HEIGHT, &h);
glViewport(0, 0, w, h);
glClearColor(0.0, 0, 0, 0.0);
glClearStencil(0);
glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
// We retrieve the fullscreen width and height
this->setSize((SkScalar)w, (SkScalar)h);
return true;
} else {
return false;
}
}
void SkOSWindow::detach() {
fDestroyRequested = true;
}
void SkOSWindow::present() {
if (fWindow.fDisplay != EGL_NO_DISPLAY && fWindow.fContext != EGL_NO_CONTEXT) {
eglSwapBuffers(fWindow.fDisplay, fWindow.fSurface);
}
}
void SkOSWindow::closeWindow() {
fDestroyRequested = true;
}
void SkOSWindow::setVsync(bool vsync) {
if (fWindow.fDisplay != EGL_NO_DISPLAY) {
int swapInterval = vsync ? 1 : 0;
eglSwapInterval(fWindow.fDisplay, swapInterval);
}
}
void SkOSWindow::onSetTitle(const char title[]) {
}
void SkOSWindow::onHandleInval(const SkIRect& rect) {
}
void SkOSWindow::onPDFSaved(const char title[], const char desc[], const char path[]) {
}
///////////////////////////////////////////
/////////////// SkEvent impl //////////////
///////////////////////////////////////////
void SkEvent::SignalQueueTimer(SkMSec ms) {
}
void SkEvent::SignalNonEmptyQueue() {
}
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