tests/projectionMatrix.cpp

   1 // Copyright (C) 2008-2012 Christian Stehno, Colin MacDonald\r
   2 // No rights reserved: this software is in the public domain.\r
   3 \r
   4 #include "testUtils.h"\r
   5 \r
   6 using namespace irr;\r
   7 using namespace core;\r
   8 using namespace scene;\r
   9 using namespace video;\r
  10 using namespace io;\r
  11 using namespace gui;\r
  12 \r
  13 //! Tests projection matrices\r
  14 static bool runTestWithDriver(E_DRIVER_TYPE driverType)\r
  15 {\r
  16         IrrlichtDevice *device = createDevice( driverType, dimension2d<u32>(160, 120), 32);\r
  17         if (!device)\r
  18                 return true; // Treat a failure to create a driver as benign; this saves a lot of #ifdefs\r
  19 \r
  20         IVideoDriver* driver = device->getVideoDriver();\r
  21 \r
  22         stabilizeScreenBackground(driver);\r
  23 \r
  24         logTestString("Testing driver %ls\n", driver->getName());\r
  25 \r
  26         bool result = true;\r
  27 \r
  28         driver->beginScene(video::ECBF_COLOR, SColor(255,0,0,0));\r
  29                         \r
  30         SMaterial mat;\r
  31         mat.MaterialType = EMT_SOLID;\r
  32         mat.Lighting = false;\r
  33         mat.ZBuffer = false;\r
  34         mat.ZWriteEnable = video::EZW_OFF;\r
  35         mat.Thickness = 1;\r
  36 \r
  37         driver->setMaterial(mat);\r
  38 \r
  39         core::dimension2d<f32> dims(driver->getCurrentRenderTargetSize());\r
  40         //apply custom projection, no offset\r
  41         core::matrix4 pmtx = matrix4().buildProjectionMatrixOrthoLH(dims.Width, dims.Height, 0, 100);\r
  42         driver->setTransform(ETS_PROJECTION, pmtx);\r
  43         driver->setTransform(ETS_VIEW, matrix4());\r
  44         driver->setTransform(ETS_WORLD, matrix4());\r
  45 \r
  46         //the red cross appears at center\r
  47         for (u32 i=0; i<10; ++i)\r
  48         {\r
  49                 driver->draw3DLine(vector3df(0.f+i,-50.f,1.f), vector3df(0.f+i,50.f,1.f), SColor(255,255,0,0));\r
  50                 driver->draw3DLine(vector3df(-50.f,0.f+i,1.f), vector3df(50.f,0.f+i,1.f), SColor(255,255,0,0));\r
  51         }\r
  52 \r
  53         //apply custom projection, offset to right-top\r
  54         pmtx.setTranslation(vector3df(0.7f, 0.7f, 0.f));\r
  55         driver->setTransform(ETS_PROJECTION, pmtx);\r
  56         driver->setTransform(ETS_VIEW, matrix4());\r
  57         driver->setTransform(ETS_WORLD, matrix4());\r
  58 \r
  59         //The green cross must be in right-top corner. But for OpenGL driver it is in left-top corner\r
  60         for (u32 i=0; i<10; ++i)\r
  61         {\r
  62                 driver->draw3DLine(vector3df(0.f+i,-50,1), vector3df(0.f+i,50,1), SColor(255,0,255,0));\r
  63                 driver->draw3DLine(vector3df(-50,0.f+i,1), vector3df(50,0.f+i,1), SColor(255,0,255,0));\r
  64         }\r
  65 \r
  66         driver->endScene();\r
  67 \r
  68         result = takeScreenshotAndCompareAgainstReference(driver, "-projMat.png", 98.71f);\r
  69 \r
  70         device->closeDevice();\r
  71         device->run();\r
  72         device->drop();\r
  73 \r
  74         return result;\r
  75 }\r
  76 \r
  77 \r
  78 bool projectionMatrix(void)\r
  79 {\r
  80         bool result = true;\r
  81 \r
  82         // TODO: Seems that software driver does not handle this projection matrix\r
  83         TestWithAllDrivers(runTestWithDriver);\r
  84 \r
  85         return result;\r
  86 }\r