git.sesse.net Git - movit/blob - alpha_division_effect_test.cpp

   1 // Unit tests for AlphaDivisionEffect.
   2
   3 #include "test_util.h"
   4 #include "gtest/gtest.h"
   5
   6 TEST(AlphaDivisionEffectTest, SimpleTest) {
   7         const int size = 2;
   8         float data[4 * size] = {
   9                 0.1f, 0.5f, 0.1f, 0.5f,
  10                 0.2f, 0.2f, 1.0f, 1.0f,
  11         };
  12         float expected_data[4 * size] = {
  13                 0.2f, 1.0f, 0.2f, 0.5f,
  14                 0.2f, 0.2f, 1.0f, 1.0f,
  15         };
  16         float out_data[4 * size];
  17         EffectChainTester tester(data, 1, size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
  18         tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
  19
  20         expect_equal(expected_data, out_data, 4, size);
  21 }
  22
  23 TEST(AlphaDivisionEffectTest, ZeroAlphaIsPreserved) {
  24         const int size = 2;
  25         float data[4 * size] = {
  26                 0.1f, 0.5f, 0.1f, 0.0f,
  27                 0.0f, 0.0f, 0.0f, 0.0f,
  28         };
  29         float out_data[4 * size];
  30         EffectChainTester tester(data, 1, size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
  31         tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
  32
  33         EXPECT_EQ(0.0f, out_data[3]);
  34         EXPECT_EQ(0.0f, out_data[7]);
  35 }