Add another test for pixel exact 2d rendering

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@3826 dfc29bdd-3216-0410-991c-e03cc46cb475

tests/draw2DImage.cpp

@@ -16,6 +16,15 @@ bool testWithRenderTarget(video::E_DRIVER_TYPE driverType)
 
 	video::IVideoDriver* driver = device->getVideoDriver();
 
+	if (!driver->queryFeature(video::EVDF_RENDER_TO_TARGET))
+	{
+		device->closeDevice();
+		device->run();
+		device->drop();
+		return true;
+	}
+	logTestString("Testing driver %ls\n", driver->getName());
+
 	video::ITexture* RenderTarget=driver->addRenderTargetTexture(core::dimension2d<u32>(64,64), "BASEMAP");
 
 	video::ITexture *tex=driver->getTexture("../media/water.jpg");
@@ -53,6 +62,8 @@ bool testWithPNG(video::E_DRIVER_TYPE driverType)
 
 	video::IVideoDriver* driver = device->getVideoDriver();
 
+	logTestString("Testing driver %ls\n", driver->getName());
+
 	video::ITexture *tex=driver->getTexture("media/RedbrushAlpha-0.25.png");
 
 	driver->beginScene(true, true, video::SColor(255,40,40,255));//Backbuffer background is blue
@@ -68,12 +79,54 @@ bool testWithPNG(video::E_DRIVER_TYPE driverType)
 	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(video::EDT_DIRECT3D9, 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;
+	}
+	logTestString("Testing driver %ls\n", driver->getName());
+
+	video::ITexture* rt=driver->addRenderTargetTexture(core::dimension2d<u32>(32,32), "rt1");
+	video::ITexture *tex=driver->getTexture("../media/fireball.bmp");
+
+	driver->beginScene(true, true, video::SColor(255,40,40,255));//Backbuffer background is blue
+	driver->setRenderTarget(rt);
+	driver->draw2DImage(tex, core::recti(0,0,32,32), core::recti(0,0,64,64));
+	driver->setRenderTarget(0);
+	driver->endScene();
+
+	video::IImage* img = driver->createImage(rt, core::vector2di(), rt->getSize());
+	driver->writeImageToFile(img, "results/fireball.png");
+	bool result = binaryCompareFiles("media/fireball.png", "results/fireball.png");
+
+	device->closeDevice();
+	device->run();
+	device->drop();
+
+	return result;
+}
+
 }
 
 bool draw2DImage()
 {
 	bool result = true;
 	TestWithAllDrivers(testWithRenderTarget);
+	TestWithAllDrivers(testExactPlacement);
 	TestWithAllHWDrivers(testWithPNG);
 	return result;
 }