Function autoTest

cpp/5_Domain_Specific/fluidsGL/fluidsGL.cpp:175–224

}

void autoTest(char **argv)
{
    CFrameBufferObject *fbo = new CFrameBufferObject(wWidth, wHeight, 4, false, GL_TEXTURE_2D);
    g_CheckRender           = new CheckFBO(wWidth, wHeight, 4, fbo);
    g_CheckRender->setPixelFormat(GL_RGBA);
    g_CheckRender->setExecPath(argv[0]);
    g_CheckRender->EnableQAReadback(true);

    fbo->bindRenderPath();

    reshape(wWidth, wHeight);

    for (int count = 0; count < g_iFrameToCompare; count++) {
        simulateFluids();

        // add in a little force so the automated testing is interesting.
        if (ref_file) {
            int   x  = wWidth / (count + 1);
            int   y  = wHeight / (count + 1);
            float fx = (x / (float)wWidth);
            float fy = (y / (float)wHeight);
            int   nx = (int)(fx * DIM);
            int   ny = (int)(fy * DIM);

            int ddx = 35;
            int ddy = 35;
            fx      = ddx / (float)wWidth;
            fy      = ddy / (float)wHeight;
            int spy = ny - FR;
            int spx = nx - FR;

            addForces(dvfield, DIM, DIM, spx, spy, FORCE * DT * fx, FORCE * DT * fy, FR);
            lastx = x;
            lasty = y;
        }
    }

    display();

    fbo->unbindRenderPath();

    // compare to official reference image, printing PASS or FAIL.
    printf("> (Frame %d) Readback BackBuffer\n", 100);
    g_CheckRender->readback(wWidth, wHeight);
    g_CheckRender->savePPM("fluidsGL.ppm", true, NULL);

    if (!g_CheckRender->PPMvsPPM("fluidsGL.ppm", ref_file, MAX_EPSILON_ERROR, 0.25f)) {
        g_TotalErrors++;
    }
}

// very simple von neumann middle-square prng.  can't use rand() in -qatest
// mode because its implementation varies across platforms which makes testing