blob: 6e7bb3b70886fd3923df675b32563f87586fb695 [file] [log] [blame]
//
// Copyright (c) 2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#include "SampleApplication.h"
#include "util/EGLWindow.h"
#include "util/gles_loader_autogen.h"
#include "util/random_utils.h"
#include "util/system_utils.h"
#include <string.h>
#include <iostream>
#include <utility>
namespace
{
const char *kUseAngleArg = "--use-angle=";
using DisplayTypeInfo = std::pair<const char *, EGLint>;
const DisplayTypeInfo kDisplayTypes[] = {
{"d3d9", EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE}, {"d3d11", EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE},
{"gl", EGL_PLATFORM_ANGLE_TYPE_OPENGL_ANGLE}, {"gles", EGL_PLATFORM_ANGLE_TYPE_OPENGLES_ANGLE},
{"null", EGL_PLATFORM_ANGLE_TYPE_NULL_ANGLE}, {"vulkan", EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE}};
EGLint GetDisplayTypeFromArg(const char *displayTypeArg)
{
for (const auto &displayTypeInfo : kDisplayTypes)
{
if (strcmp(displayTypeInfo.first, displayTypeArg) == 0)
{
std::cout << "Using ANGLE back-end API: " << displayTypeInfo.first << std::endl;
return displayTypeInfo.second;
}
}
std::cout << "Unknown ANGLE back-end API: " << displayTypeArg << std::endl;
return EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE;
}
} // anonymous namespace
SampleApplication::SampleApplication(std::string name,
int argc,
char **argv,
EGLint glesMajorVersion,
EGLint glesMinorVersion,
size_t width,
size_t height)
: mName(std::move(name)),
mWidth(width),
mHeight(height),
mRunning(false),
mEGLWindow(nullptr),
mOSWindow(nullptr)
{
mPlatformParams.majorVersion = glesMajorVersion;
mPlatformParams.minorVersion = glesMinorVersion;
mPlatformParams.renderer = EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE;
if (argc > 1 && strncmp(argv[1], kUseAngleArg, strlen(kUseAngleArg)) == 0)
{
mPlatformParams.renderer = GetDisplayTypeFromArg(argv[1] + strlen(kUseAngleArg));
}
// Load EGL library so we can initialize the display.
mEntryPointsLib.reset(angle::OpenSharedLibrary(ANGLE_EGL_LIBRARY_NAME));
mEGLWindow = EGLWindow::New(glesMajorVersion, glesMinorVersion);
mTimer.reset(CreateTimer());
mOSWindow = OSWindow::New();
}
SampleApplication::~SampleApplication()
{
EGLWindow::Delete(&mEGLWindow);
OSWindow::Delete(&mOSWindow);
}
bool SampleApplication::initialize()
{
return true;
}
void SampleApplication::destroy() {}
void SampleApplication::step(float dt, double totalTime) {}
void SampleApplication::draw() {}
void SampleApplication::swap()
{
mEGLWindow->swap();
}
OSWindow *SampleApplication::getWindow() const
{
return mOSWindow;
}
EGLConfig SampleApplication::getConfig() const
{
return mEGLWindow->getConfig();
}
EGLDisplay SampleApplication::getDisplay() const
{
return mEGLWindow->getDisplay();
}
EGLSurface SampleApplication::getSurface() const
{
return mEGLWindow->getSurface();
}
EGLContext SampleApplication::getContext() const
{
return mEGLWindow->getContext();
}
int SampleApplication::run()
{
if (!mOSWindow->initialize(mName, mWidth, mHeight))
{
return -1;
}
mOSWindow->setVisible(true);
ConfigParameters configParams;
configParams.redBits = 8;
configParams.greenBits = 8;
configParams.blueBits = 8;
configParams.alphaBits = 8;
configParams.depthBits = 24;
configParams.stencilBits = 8;
if (!mEGLWindow->initializeGL(mOSWindow, mEntryPointsLib.get(), mPlatformParams, configParams))
{
return -1;
}
// Disable vsync
if (!mEGLWindow->setSwapInterval(0))
{
return -1;
}
angle::LoadGLES(eglGetProcAddress);
mRunning = true;
int result = 0;
if (!initialize())
{
mRunning = false;
result = -1;
}
mTimer->start();
double prevTime = 0.0;
while (mRunning)
{
double elapsedTime = mTimer->getElapsedTime();
double deltaTime = elapsedTime - prevTime;
step(static_cast<float>(deltaTime), elapsedTime);
// Clear events that the application did not process from this frame
Event event;
while (popEvent(&event))
{
// If the application did not catch a close event, close now
if (event.Type == Event::EVENT_CLOSED)
{
exit();
}
}
if (!mRunning)
{
break;
}
draw();
swap();
mOSWindow->messageLoop();
prevTime = elapsedTime;
}
destroy();
mEGLWindow->destroyGL();
mOSWindow->destroy();
return result;
}
void SampleApplication::exit()
{
mRunning = false;
}
bool SampleApplication::popEvent(Event *event)
{
return mOSWindow->popEvent(event);
}