ppapi/tests/test_image_data.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/tests/test_image_data.h"
   6
   7 #include "ppapi/cpp/graphics_2d.h"
   8 #include "ppapi/cpp/image_data.h"
   9 #include "ppapi/cpp/instance.h"
  10 #include "ppapi/cpp/module.h"
  11 #include "ppapi/tests/testing_instance.h"
  12
  13 REGISTER_TEST_CASE(ImageData);
  14
  15 bool TestImageData::Init() {
  16   image_data_interface_ = static_cast<const PPB_ImageData*>(
  17       pp::Module::Get()->GetBrowserInterface(PPB_IMAGEDATA_INTERFACE));
  18   return !!image_data_interface_;
  19 }
  20
  21 void TestImageData::RunTests(const std::string& filter) {
  22   instance_->LogTest("InvalidFormat", TestInvalidFormat());
  23   instance_->LogTest("InvalidSize", TestInvalidSize());
  24   instance_->LogTest("HugeSize", TestHugeSize());
  25   instance_->LogTest("InitToZero", TestInitToZero());
  26   instance_->LogTest("IsImageData", TestIsImageData());
  27 }
  28
  29 std::string TestImageData::TestInvalidFormat() {
  30   pp::ImageData a(instance_, static_cast<PP_ImageDataFormat>(1337),
  31                   pp::Size(16, 16), true);
  32   if (!a.is_null())
  33     return "Crazy image data format accepted";
  34
  35   pp::ImageData b(instance_, static_cast<PP_ImageDataFormat>(-1),
  36                   pp::Size(16, 16), true);
  37   if (!b.is_null())
  38     return "Negative image data format accepted";
  39
  40   PASS();
  41 }
  42
  43 std::string TestImageData::TestInvalidSize() {
  44   pp::ImageData zero_size(instance_, PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  45                           pp::Size(0, 0), true);
  46   if (!zero_size.is_null())
  47     return "Zero width and height accepted";
  48
  49   pp::ImageData zero_height(instance_, PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  50                             pp::Size(16, 0), true);
  51   if (!zero_height.is_null())
  52     return "Zero height accepted";
  53
  54   pp::ImageData zero_width(instance_, PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  55                            pp::Size(0, 16), true);
  56   if (!zero_width.is_null())
  57     return "Zero width accepted";
  58
  59   PP_Size negative_height;
  60   negative_height.width = 16;
  61   negative_height.height = -2;
  62   PP_Resource rsrc = image_data_interface_->Create(
  63       instance_->pp_instance(),
  64       PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  65       &negative_height, PP_TRUE);
  66   if (rsrc)
  67     return "Negative height accepted";
  68
  69   PP_Size negative_width;
  70   negative_width.width = -2;
  71   negative_width.height = 16;
  72   rsrc = image_data_interface_->Create(
  73       instance_->pp_instance(),
  74       PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  75       &negative_width, PP_TRUE);
  76   if (rsrc)
  77     return "Negative width accepted";
  78
  79   PASS();
  80 }
  81
  82 std::string TestImageData::TestHugeSize() {
  83   pp::ImageData huge_size(instance_, PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  84                           pp::Size(100000000, 100000000), true);
  85   if (!huge_size.is_null())
  86     return "31-bit overflow size accepted";
  87   PASS();
  88 }
  89
  90 std::string TestImageData::TestInitToZero() {
  91   const int w = 5;
  92   const int h = 6;
  93   pp::ImageData img(instance_, PP_IMAGEDATAFORMAT_BGRA_PREMUL,
  94                     pp::Size(w, h), true);
  95   if (img.is_null())
  96     return "Could not create bitmap";
  97
  98   // Basic validity checking of the bitmap. This also tests "describe" since
  99   // that's where the image data object got its imfo from.
 100   if (img.size().width() != w || img.size().height() != h)
 101     return "Wrong size";
 102   if (img.format() != PP_IMAGEDATAFORMAT_BGRA_PREMUL)
 103     return "Wrong format";
 104   if (img.stride() < w * 4)
 105     return "Stride too small";
 106
 107   // Now check that everything is 0.
 108   for (int y = 0; y < h; y++) {
 109     uint32_t* row = img.GetAddr32(pp::Point(0, y));
 110     for (int x = 0; x < w; x++) {
 111       if (row[x] != 0)
 112         return "Image data isn't entirely zero";
 113     }
 114   }
 115
 116   PASS();
 117 }
 118
 119 std::string TestImageData::TestIsImageData() {
 120   // Test that a NULL resource isn't an image data.
 121   pp::Resource null_resource;
 122   if (image_data_interface_->IsImageData(null_resource.pp_resource()))
 123     return "Null resource was reported as a valid image";
 124
 125   // Make another resource type and test it.
 126   const int w = 16, h = 16;
 127   pp::Graphics2D device(instance_, pp::Size(w, h), true);
 128   if (device.is_null())
 129     return "Couldn't create device context";
 130   if (image_data_interface_->IsImageData(device.pp_resource()))
 131     return "Device context was reported as an image";
 132
 133   // Make a valid image resource.
 134   pp::ImageData img(instance_, PP_IMAGEDATAFORMAT_BGRA_PREMUL,
 135                     pp::Size(w, h), true);
 136   if (img.is_null())
 137     return "Couldn't create image data";
 138   if (!image_data_interface_->IsImageData(img.pp_resource()))
 139     return "Image data should be identified as an image";
 140
 141   PASS();
 142 }