irrlicht/tests/screenshot.cpp

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// Copyright (C) 2008-2012 Colin MacDonald
// No rights reserved: this software is in the public domain.
#include "testUtils.h"
using namespace irr;
static irr::u8 aa = 0; // AntiAlias used in testShotsInShots
// Tests screenshots features
static bool testShots(video::E_DRIVER_TYPE type)
{
IrrlichtDevice *device = createDevice(type, core::dimension2d<u32>(160, 120), 32);
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager * smgr = device->getSceneManager();
logTestString("Testing driver %ls\n", driver->getName());
scene::IAnimatedMesh* mesh = smgr->getMesh("../media/sydney.md2");
scene::IAnimatedMeshSceneNode* node;
if (!mesh)
return false;
node = smgr->addAnimatedMeshSceneNode(mesh);
if (!node)
return false;
stabilizeScreenBackground(driver);
node->setPosition(core::vector3df(20, 0, 30));
node->setMaterialFlag(video::EMF_LIGHTING, false);
node->setMaterialTexture(0, driver->getTexture("../media/sydney.bmp"));
node->setLoopMode(false);
smgr->addCameraSceneNode();
node->setMD2Animation(scene::EMAT_DEATH_FALLBACK);
node->setCurrentFrame((f32)(node->getEndFrame()));
node->setAnimationSpeed(0);
device->run();
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255, 255, 255, 0));
smgr->drawAll();
driver->endScene();
for (s32 i=0; i<video::ECF_UNKNOWN; ++i)
{
video::IImage* img = driver->createScreenShot((video::ECOLOR_FORMAT)i);
logTestString("Color Format %d %ssupported\n", i, (img && img->getColorFormat() == i)?"":"un");
#if 0 // Enable for a quick check while testing.
// If someone adds comparison images please use another scene without animation
// and maybe a texture using the full color spectrum.
if ( img )
{
irr::core::stringc screenshotFilename = "results/";
screenshotFilename += shortDriverName(driver);
screenshotFilename += "screenshot";
screenshotFilename += core::stringc(i);
screenshotFilename += ".png";
driver->writeImageToFile(img, screenshotFilename.c_str());
}
#endif
if (img)
img->drop();
}
device->closeDevice();
device->run();
device->drop();
return true;
}
// render some recognizable stuff
static void drawSomeStuff(video::IVideoDriver* driver)
{
driver->draw2DRectangle(core::recti(5,5,155,115),
video::SColor(255, 100, 0, 0),
video::SColor(255, 0, 200, 0),
video::SColor(255, 0, 0, 200),
video::SColor(255, 20, 150, 150));
driver->draw2DLine(core::position2di(10,10), core::position2di(150,110), video::SColor(255,250,50,0));
driver->draw2DLine(core::position2di(0,120), core::position2di(80,60), video::SColor(255,50,50,250));
}
// Make a screenshot, then draw it again (scaled down) together with the stuff the screenshot was made from
static bool testShotsOfShots(video::E_DRIVER_TYPE type)
{
SIrrlichtCreationParameters params;
params.AntiAlias = aa;
params.WindowSize = core::dimension2du(160, 120);
params.DriverType = type;
IrrlichtDevice *device = createDeviceEx(params);
if (!device)
return true; // in case the driver type does not exist
video::IVideoDriver* driver = device->getVideoDriver();
logTestString("Testing driver %ls\n", driver->getName());
stabilizeScreenBackground(driver);
device->run();
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
drawSomeStuff(driver);
driver->endScene();
video::IImage* img = driver->createScreenShot();
bool result = true;
if ( img )
{
video::ITexture * screenshot = driver->addTexture(io::path("firstScreenshot"), img);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
drawSomeStuff(driver);
driver->draw2DImage(screenshot, core::recti(0, 30, 80, 90), core::recti(screenshot->getOriginalSize()), 0, 0, 0);
driver->endScene();
img->drop();
irr::core::stringc name("-shotsInShots");
name += irr::core::stringc((int)aa);
name += ".png";
result = takeScreenshotAndCompareAgainstReference(driver, name.c_str());
if ( !result )
{
logTestString("driver color format: %s\n", video::ColorFormatNames[driver->getColorFormat()]);
}
}
else
{
logTestString("Failed to create a screenshot");
result = false;
}
device->closeDevice();
device->run();
device->drop();
return result;
}
bool screenshot()
{
bool result = true;
TestWithAllHWDrivers(testShots);
aa = 0;
TestWithAllDrivers(testShotsOfShots);
aa = 2; // testing something that might cause troubles with Nouveau on some systems
TestWithAllDrivers(testShotsOfShots);
return result;
}