irrlicht/tests/draw2DImage.cpp

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#include "testUtils.h"
using namespace irr;
namespace
{
bool testWithRenderTarget(video::E_DRIVER_TYPE driverType)
{
// create device
IrrlichtDevice *device = createDevice(driverType, core::dimension2d<u32>(160,120));
if (device == 0)
return true; // could not create selected driver.
video::IVideoDriver* driver = device->getVideoDriver();
if (!driver->queryFeature(video::EVDF_RENDER_TO_TARGET))
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
video::ITexture* renderTargetTex = driver->addRenderTargetTexture(core::dimension2d<u32>(64, 64), "BASEMAP");
video::ITexture* renderTargetDepth = driver->addRenderTargetTexture(core::dimension2d<u32>(64, 64), "rtd", video::ECF_D16);
video::IRenderTarget* renderTarget = driver->addRenderTarget();
renderTarget->setTexture(renderTargetTex, renderTargetDepth);
video::ITexture* tex=driver->getTexture("../media/water.jpg");
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,255,0,255));//Backbuffer background is pink
//draw the 256x256 water image on the rendertarget:
driver->setRenderTargetEx(renderTarget,video::ECBF_COLOR|video::ECBF_DEPTH,video::SColor(255,0,0,255));//Rendertarget background is blue
driver->draw2DImage(tex, core::position2d<s32>(0,0), core::recti(0,0,32,32));
driver->setRenderTargetEx(0, 0);
//draw the rendertarget on screen:
//this should normally draw a 64x64 image containing a 32x32 image in the top left corner
driver->draw2DImage(renderTargetTex, core::position2d<s32>(0,0));
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-draw2DImageRTT.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
// Test various special destination rectangles
bool testRectangles(video::E_DRIVER_TYPE driverType)
{
// create device
IrrlichtDevice *device = createDevice(driverType, core::dimension2d<u32>(160,120));
if (device == 0)
return true; // could not create selected driver.
video::IVideoDriver* driver = device->getVideoDriver();
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
video::ITexture *tex=driver->getTexture("../media/fireball.bmp");
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,255,0,255));//Backbuffer background is pink
// draw normal, will be overdrwan in error case
driver->draw2DImage(tex, core::recti(68,32,132,96), core::recti(0,0,64,64));
//draw the image larger
driver->draw2DImage(tex, core::recti(0,0,64,64), core::recti(0,0,32,32));
//draw the image flipped horizontally
driver->draw2DImage(tex, core::recti(132,0,68,64), core::recti(0,0,64,64));
//draw the image smaller
driver->draw2DImage(tex, core::recti(0,64,32,96), core::recti(0,0,64,64));
//draw the image much smaller
driver->draw2DImage(tex, core::recti(36,64,44,72), core::recti(0,0,64,64));
//draw the image flipped horizontally
driver->draw2DImage(tex, core::recti(68,64,132,0), core::recti(0,0,64,64));
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-draw2DImageRect.png");
device->closeDevice();
device->run();
device->drop();
return result;
}
// draws a complex (interlaced, paletted, alpha) png image
bool testWithPNG(video::E_DRIVER_TYPE driverType)
{
// create device
IrrlichtDevice *device = createDevice(driverType, core::dimension2d<u32>(160,120));
if (device == 0)
return true; // could not create selected driver.
video::IVideoDriver* driver = device->getVideoDriver();
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
video::ITexture *tex=driver->getTexture("media/RedbrushAlpha-0.25.png");
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,40,40,255));//Backbuffer background is blue
driver->draw2DImage(tex, core::recti(0,0,160,120), core::recti(0,0,256,256), 0, 0, true);
driver->endScene();
bool result = takeScreenshotAndCompareAgainstReference(driver, "-draw2DImagePNG.png", 98.f);
device->closeDevice();
device->run();
device->drop();
return result;
}
// draws an image and checks if the written example equals the original image
bool testExactPlacement(video::E_DRIVER_TYPE driverType)
{
// create device
IrrlichtDevice *device = createDevice(driverType, core::dimension2d<u32>(160,120), 32);
if (device == 0)
return true; // could not create selected driver.
video::IVideoDriver* driver = device->getVideoDriver();
if (driver->getColorFormat() != video::ECF_A8R8G8B8 || !driver->queryFeature(video::EVDF_RENDER_TO_TARGET))
{
device->closeDevice();
device->run();
device->drop();
return true;
}
stabilizeScreenBackground(driver);
logTestString("Testing driver %ls\n", driver->getName());
video::ITexture* renderTargetTex = driver->addRenderTargetTexture(core::dimension2d<u32>(32, 32), "rt1");
video::ITexture* renderTargetDepth = driver->addRenderTargetTexture(core::dimension2d<u32>(32, 32), "rtd", video::ECF_D16);
video::IRenderTarget* renderTarget = driver->addRenderTarget();
renderTarget->setTexture(renderTargetTex, renderTargetDepth);
video::ITexture* tex=driver->getTexture("../media/fireball.bmp");
driver->beginScene(video::ECBF_COLOR | video::ECBF_DEPTH, video::SColor(255,40,40,255));//Backbuffer background is blue
driver->setRenderTargetEx(renderTarget, 0, video::ECBF_COLOR | video::ECBF_DEPTH);
driver->draw2DImage(tex, core::recti(0,0,32,32), core::recti(0,0,64,64));
driver->setRenderTargetEx(0, 0, 0);
driver->endScene();
video::IImage* img = driver->createImage(renderTargetTex, core::vector2di(), renderTargetTex->getSize());
driver->writeImageToFile(img, "results/fireball.png");
img->drop();
bool result = fuzzyCompareImages(driver,
driverType == video::EDT_BURNINGSVIDEO ? "media/Burning's Video-fireball.png":"media/fireball.png", "results/fireball.png")>98.25f;
device->closeDevice();
device->run();
device->drop();
return result;
}
}
bool draw2DImage()
{
bool result = true;
TestWithAllDrivers(testWithRenderTarget);
TestWithAllHWDrivers(testWithPNG);
// TODO D3D driver moves image 1 pixel top-left in case of down scaling
TestWithAllDrivers(testExactPlacement);
TestWithAllDrivers(testRectangles);
return result;
}