src/third_party/skia/tests/GpuRectanizerTest.cpp

   1 /*
   2 * Copyright 2014 Google Inc.
   3 *
   4 * Use of this source code is governed by a BSD-style license that can be
   5 * found in the LICENSE file.
   6 */
   7
   8 #if SK_SUPPORT_GPU
   9
  10 #include "GrRectanizer_pow2.h"
  11 #include "GrRectanizer_skyline.h"
  12 #include "SkRandom.h"
  13 #include "SkSize.h"
  14 #include "SkTDArray.h"
  15 #include "Test.h"
  16
  17 static const int kWidth = 1024;
  18 static const int kHeight = 1024;
  19
  20 // Basic test of a GrRectanizer-derived class' functionality
  21 static void test_rectanizer_basic(skiatest::Reporter* reporter, GrRectanizer* rectanizer) {
  22     REPORTER_ASSERT(reporter, kWidth == rectanizer->width());
  23     REPORTER_ASSERT(reporter, kHeight == rectanizer->height());
  24
  25     SkIPoint16 loc;
  26
  27     REPORTER_ASSERT(reporter, rectanizer->addRect(50, 50, &loc));
  28     REPORTER_ASSERT(reporter, rectanizer->percentFull() > 0.0f);
  29     rectanizer->reset();
  30     REPORTER_ASSERT(reporter, rectanizer->percentFull() == 0.0f);
  31 }
  32
  33 static void test_rectanizer_inserts(skiatest::Reporter*,
  34                                     GrRectanizer* rectanizer,
  35                                     const SkTDArray<SkISize>& rects) {
  36     int i;
  37     for (i = 0; i < rects.count(); ++i) {
  38         SkIPoint16 loc;
  39         if (!rectanizer->addRect(rects[i].fWidth, rects[i].fHeight, &loc)) {
  40             break;
  41         }
  42     }
  43
  44     //SkDebugf("\n***%d %f\n", i, rectanizer->percentFull());
  45 }
  46
  47 static void test_skyline(skiatest::Reporter* reporter, const SkTDArray<SkISize>& rects) {
  48     GrRectanizerSkyline skylineRectanizer(kWidth, kHeight);
  49
  50     test_rectanizer_basic(reporter, &skylineRectanizer);
  51     test_rectanizer_inserts(reporter, &skylineRectanizer, rects);
  52 }
  53
  54 static void test_pow2(skiatest::Reporter* reporter, const SkTDArray<SkISize>& rects) {
  55     GrRectanizerPow2 pow2Rectanizer(kWidth, kHeight);
  56
  57     test_rectanizer_basic(reporter, &pow2Rectanizer);
  58     test_rectanizer_inserts(reporter, &pow2Rectanizer, rects);
  59 }
  60
  61 DEF_GPUTEST(GpuRectanizer, reporter, factory) {
  62     SkTDArray<SkISize> rects;
  63     SkRandom rand;
  64
  65     for (int i = 0; i < 50; i++) {
  66         rects.push(SkISize::Make(rand.nextRangeU(1, kWidth / 2),
  67                                  rand.nextRangeU(1, kHeight / 2)));
  68     }
  69
  70     test_skyline(reporter, rects);
  71     test_pow2(reporter, rects);
  72 }
  73
  74 #endif