/*

  *******************************************************************************

  *

  *   Copyright (C) 1999-2003, International Business Machines

  *   Corporation and others.  All Rights Reserved.

  *

  *******************************************************************************

  *   file name:  letest.cpp

  *

  *   created on: 11/06/2000

  *   created by: Eric R. Mader

  */

 #include "math.h"

 #include "LETypes.h"

 #include "LayoutEngine.h"

 #include "PortableFontInstance.h"

 #include "letest.h"

 U_NAMESPACE_USE

 le_bool compareResults(le_int32 testNumber, TestResult *expected, TestResult *actual)

 {

     /* NOTE: we'll stop on the first failure 'cause once there's one error, it may cascade... */

     if (actual->glyphCount != expected->glyphCount) {

         printf("incorrect glyph count: exptected %d, got %d\n", expected->glyphCount, actual->glyphCount);

         return FALSE;

     }

     le_int32 i;

     for (i = 0; i < actual->glyphCount; i += 1) {

         if (actual->glyphs[i] != expected->glyphs[i]) {

             printf("incorrect id for glyph %d: expected %4X, got %4X\n", i, expected->glyphs[i], actual->glyphs[i]);

             return FALSE;

         }

     }

     for (i = 0; i < actual->glyphCount; i += 1) {

         if (actual->indices[i] != expected->indices[i]) {

             printf("incorrect index for glyph %d: expected %8X, got %8X\n", i, expected->indices[i], actual->indices[i]);

             return FALSE;

         }

     }

     for (i = 0; i <= actual->glyphCount; i += 1) {

         double xError = fabs(actual->positions[i * 2] - expected->positions[i * 2]);

         if (xError > 0.0001) {

             printf("incorrect x position for glyph %d: expected %f, got %f\n", i, expected->positions[i * 2], actual->positions[i * 2]);

             return FALSE;

         }

         double yError = fabs(actual->positions[i * 2 + 1] - expected->positions[i * 2 + 1]);

         if (yError < 0) {

             yError = -yError;

         }

         if (yError > 0.0001) {

             printf("incorrect y position for glyph %d: expected %f, got %f\n", i, expected->positions[i * 2 + 1], actual->positions[i * 2 + 1]);

             return FALSE;

         }

     }

     return TRUE;

 }

 int main_entry()

 {

     le_int32 failures = 0;

     for (le_int32 test = 0; test < testCount; test += 1) {

         LEErrorCode fontStatus = LE_NO_ERROR;

         printf("Test %d, font = %s... ", test, testInputs[test].fontName);

         PortableFontInstance fontInstance(testInputs[test].fontName, 12, fontStatus);

         if (LE_FAILURE(fontStatus)) {

             printf("could not open font.\n");

             continue;

         }

         LEErrorCode success = LE_NO_ERROR;

         LayoutEngine *engine = LayoutEngine::layoutEngineFactory(&fontInstance, testInputs[test].scriptCode, -1, success);

         le_int32 textLength = testInputs[test].textLength;

         le_bool result;

         TestResult actual;

         if (LE_FAILURE(success)) {

             // would be nice to print the script name here, but

             // don't want to maintain a table, and don't want to

             // require ICU just for the script name...

             printf("could not create a LayoutEngine.\n");

             continue;

         }

         actual.glyphCount = engine->layoutChars(testInputs[test].text, 0, textLength, textLength, testInputs[test].rightToLeft, 0, 0, success);

         actual.glyphs    = new LEGlyphID[actual.glyphCount];

         actual.indices   = new le_int32[actual.glyphCount];

         actual.positions = new float[actual.glyphCount * 2 + 2];

         engine->getGlyphs(actual.glyphs, success);

         engine->getCharIndices(actual.indices, success);

         engine->getGlyphPositions(actual.positions, success);

         result = compareResults(test, &testResults[test], &actual);

         if (result) {

             printf("passed.\n");

         } else {

             failures += 1;

             printf("failed.\n");

         }

         delete[] actual.positions;

         delete[] actual.indices;

         delete[] actual.glyphs;

         delete   engine;

     }

     return failures;

 }