irrlicht/tests/textureRenderStates.cpp

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// Copyright (C) 2008-2012 Christian Stehno, Colin MacDonald
// No rights reserved: this software is in the public domain.
#include "testUtils.h"
using namespace irr;
using namespace core;
static bool manyTextures(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice *device = createDevice(driverType, dimension2d<u32>(160, 120), 32);
if (!device)
return true; // Treat a failure to create a driver as benign; this saves a lot of #ifdefs
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager * smgr = device->getSceneManager();
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
(void)smgr->addCameraSceneNode();
scene::SMeshBufferLightMap* mesh = new scene::SMeshBufferLightMap;
mesh->Vertices.reallocate(4);
mesh->Indices.reallocate(6);
mesh->Vertices.push_back(video::S3DVertex2TCoords(-50,50,80,irr::video::SColor(255,100,100,100),0,1,0,1));
mesh->Vertices.push_back(video::S3DVertex2TCoords(50,50,80,irr::video::SColor(255,100,100,100),1,1,1,1));
mesh->Vertices.push_back(video::S3DVertex2TCoords(50,-50,80,irr::video::SColor(255,100,100,100),1,0,1,0));
mesh->Vertices.push_back(video::S3DVertex2TCoords(-50,-50,80,irr::video::SColor(255,100,100,100),0,0,0,0));
mesh->Indices.push_back(0);
mesh->Indices.push_back(1);
mesh->Indices.push_back(2);
mesh->Indices.push_back(2);
mesh->Indices.push_back(3);
mesh->Indices.push_back(0);
video::SMaterial& mat = mesh->getMaterial();
mat.Lighting = false;
mat.setTexture(0,driver->getTexture("../media/fire.bmp"));
mat.setTexture(1,driver->getTexture("../media/fire.bmp"));
mat.setTexture(2,driver->getTexture("../media/fire.bmp"));
mat.setTexture(3,driver->getTexture("../media/fire.bmp"));
mesh->setDirty();
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
// set camera
smgr->drawAll();
// draw meshbuffer
driver->setMaterial(mat);
driver->drawMeshBuffer(mesh);
driver->endScene();
mesh->drop();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-multiTexture.png", 99.31f);
device->closeDevice();
device->run();
device->drop();
return result;
}
//! Tests interleaved loading and rendering of textures
/** The test loads a texture, renders it using draw2dimage, loads another
texture and renders the first one again. Due to the texture cache this
can lead to rendering of the second texture in second place. */
static bool renderAndLoad(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice *device = createDevice( driverType, dimension2d<u32>(160, 120), 32);
if (!device)
return true; // Treat a failure to create a driver as benign; this saves a lot of #ifdefs
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager * smgr = device->getSceneManager();
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
video::ITexture* tex1 = driver->getTexture("../media/wall.bmp");
(void)smgr->addCameraSceneNode();
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
driver->draw2DImage(tex1, position2di(0,0));
driver->endScene();
driver->getTexture("../media/tools.png");
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
driver->draw2DImage(tex1, position2di(0,0));
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-textureRenderStates.png", 99.85f);
device->closeDevice();
device->run();
device->drop();
return result;
}
// This test would cause a crash if it does not work
// in 1.5.1 and 1.6 an illegal access in the OpenGL driver caused this
static bool renderAndRemove(video::E_DRIVER_TYPE driverType)
{
IrrlichtDevice *device = createDevice( driverType, dimension2d<u32>(160, 120), 32);
if (!device)
return true; // Treat a failure to create a driver as benign; this saves a lot of #ifdefs
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager * smgr = device->getSceneManager();
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255, 0, 255, 0));
smgr->drawAll();
driver->endScene();
smgr->addCameraSceneNode();
video::ITexture* texture = driver->getTexture ("media/tools.png");
scene::ISceneNode * img = smgr->addCubeSceneNode();
img->setMaterialTexture(0, texture);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor (255, 0, 255, 0));
smgr->drawAll();
driver->endScene();
smgr->clear(); // Remove anything that used the texture
driver->removeTexture(texture);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
smgr->drawAll();
driver->endScene();
smgr->addCameraSceneNode();
texture = driver->getTexture("media/tools.png");
img = smgr->addCubeSceneNode();
img->setMaterialTexture(0, texture);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, irr::video::SColor (255, 0, 255, 0));
smgr->drawAll();
driver->endScene();
device->closeDevice();
device->run();
device->drop();
return true;
}
static bool testTextureMatrixInMixedScenes(video::E_DRIVER_TYPE driverType)
{
irr::IrrlichtDevice* device = createDevice(driverType, dimension2du(160,120));
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* sceneManager = device->getSceneManager();
gui::IGUIEnvironment* gui = device->getGUIEnvironment();
if (!driver->queryFeature(video::EVDF_TEXTURE_MATRIX))
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
scene::ICameraSceneNode* camera = sceneManager->addCameraSceneNode();
camera->setPosition(vector3df(0,10,0));
gui::IGUIStaticText* stext = gui->addStaticText(L" ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456789 ",
rect<s32>(5,100,150,125),false,false,0,false);
stext->setBackgroundColor(video::SColor(255,128,0,0));
stext->setOverrideColor(video::SColor(255,255,255,255));
gui->addEditBox(L"Test edit box", rect<s32>(5,50,150,75));
gui->addCheckBox(true, rect<s32>(5, 20, 150, 45),0,-1,L"Test CheckBox");
video::SMaterial mat;
mat.MaterialType = video::EMT_SOLID;
mat.setFlag(video::EMF_LIGHTING, false);
// problem doesn't occur if the scale defaults: (1.f,1.f).
mat.getTextureMatrix(0).setTextureScale(2.0,2.0);
scene::IAnimatedMesh* pmesh = sceneManager->addHillPlaneMesh("testMesh",dimension2d<f32>(50,50),dimension2d<u32>(6,6),&mat);
sceneManager->addAnimatedMeshSceneNode(pmesh);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
sceneManager->drawAll();
gui->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-textureMatrixInMixedScenes.png", 99.33f);
device->closeDevice();
device->run();
device->drop();
return result;
}
// animated texture matrix test.
static bool textureMatrix(video::E_DRIVER_TYPE driverType)
{
irr::IrrlichtDevice* device = createDevice(driverType, dimension2du(160,120));
if (!device)
return true;
video::IVideoDriver* driver = device->getVideoDriver();
scene::ISceneManager* sceneManager = device->getSceneManager();
if (!driver->queryFeature(video::EVDF_TEXTURE_MATRIX))
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
scene::ICameraSceneNode* camera = sceneManager->addCameraSceneNode();
camera->setPosition(vector3df(0,0,-10));
// set up plane mesh to face the camera
scene::IMesh* mesh = sceneManager->getGeometryCreator()->createPlaneMesh(dimension2df(150,150), core::dimension2du(1,1),0,core::dimension2df(1,1));
scene::IMeshSceneNode* node = sceneManager->addMeshSceneNode(mesh, 0, -1, vector3df(0, 0, 150), vector3df(-90, 0, 0));
if (mesh)
mesh->drop();
// set the hillplane material texture & save a reference
// to the texture matrix.
video::SMaterial& material = node->getMaterial(0);
video::ITexture* tex = driver->getTexture("../media/water.jpg");
material.setTexture(0,tex);
material.setFlag(video::EMF_LIGHTING,false);
matrix4& textureMatrix = material.TextureLayer[0].getTextureMatrix();
const vector2df rcenter, scale(1.f, 1.f);
vector2df trans;
trans.X += 0.0005f;
textureMatrix.buildTextureTransform(0.f, rcenter, trans, scale);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
sceneManager->drawAll();
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-textureMatrix.png");
trans.X += 0.45f;
textureMatrix.buildTextureTransform(0.f, rcenter, trans, scale);
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,100,101,140));
sceneManager->drawAll();
driver->endScene();
result &= takeScreenshotAndCompareAgainstReference(driver, "-textureMatrix2.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
bool danglingTexturePointer()
{
// A demo of the OpenGL "white texture" bug in Irrlicht
// Author: Matt Giuca
// (Vaguely based on the Irrlicht 2D graphics tutorial)
// I have found that in some situations, when using the OpenGL driver, some
// textures appear white.
// This is caused by deleting a texture while it is active (the last texture
// read or written to), and then loading a new texture at the same memory
// location. The new texture will not be loaded properly.
// This demo triggers the bug (though there is some probability that it won't
// be triggered; just run it again until it shows a white square instead of
// the Irrlicht logo).
// This is only a problem in the OpenGL driver
irr::IrrlichtDevice* device = irr::createDevice(irr::video::EDT_OPENGL,
irr::core::dimension2d<irr::u32>(160, 120));
if (!device)
return true;
irr::video::IVideoDriver* driver = device->getVideoDriver();
stabilizeScreenBackground(driver);
// Load a texture from a file
// This binds and uploads to OpenGL texture #2.
irr::video::ITexture* logo2 = driver->getTexture("../media/irrlichtlogo2.png");
// Remove the texture from the driver (delete it from hardware)
// This leaves CurrentTexture pointing at logo2
driver->removeTexture(logo2);
// Load another texture from a file
// There is a good probability that logo3 will be allocated the same
// memory address as logo2. If that happens,
// COpenGLDriver::setActiveTexture will not bother to call glBindTextures
// (thinking that logo3 is the same texture as logo2).
// Therefore, the logo3 texture will be uploaded to texture #0, not #2.
irr::video::ITexture* logo3 = driver->getTexture("../media/irrlichtlogo3.png");
device->run();
{
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, irr::video::SColor(255,100,101,140));
// This is required to trigger the white appearance (this unbinds the
// texture, forcing draw2DImage to rebind the logo3 texture (#2)).
driver->setMaterial(irr::video::SMaterial());
// Since logo3 was uploaded to #0, not #2, this will bind texture #2,
// which has never been written to. OpenGL considers an empty texture
// to be white.
driver->draw2DImage(logo3, irr::core::position2d<irr::s32>(20, 20));
driver->endScene();
}
const bool result = takeScreenshotAndCompareAgainstReference(driver, "-texturePointer.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
bool textureRenderStates(void)
{
bool result = true;
TestWithAllDrivers(renderAndLoad);
TestWithAllDrivers(renderAndRemove);
TestWithAllDrivers(testTextureMatrixInMixedScenes);
TestWithAllDrivers(manyTextures);
TestWithAllDrivers(textureMatrix);
result &= danglingTexturePointer();
return result;
}