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

   1 // Unit tests for AlphaDivisionEffect.
   2
   3 #include <epoxy/gl.h>
   4 #include "gtest/gtest.h"
   5 #include "image_format.h"
   6 #include "test_util.h"
   7
   8 namespace movit {
   9
  10 TEST(AlphaDivisionEffectTest, SimpleTest) {
  11         const int size = 2;
  12         float data[4 * size] = {
  13                 0.1f, 0.5f, 0.1f, 0.5f,
  14                 0.2f, 0.2f, 1.0f, 1.0f,
  15         };
  16         float expected_data[4 * size] = {
  17                 0.2f, 1.0f, 0.2f, 0.5f,
  18                 0.2f, 0.2f, 1.0f, 1.0f,
  19         };
  20         float out_data[4 * size];
  21         EffectChainTester tester(data, 1, size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
  22         tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
  23
  24         expect_equal(expected_data, out_data, 4, size);
  25 }
  26
  27 TEST(AlphaDivisionEffectTest, ZeroAlphaIsPreserved) {
  28         const int size = 2;
  29         float data[4 * size] = {
  30                 0.1f, 0.5f, 0.1f, 0.0f,
  31                 0.0f, 0.0f, 0.0f, 0.0f,
  32         };
  33         float out_data[4 * size];
  34         EffectChainTester tester(data, 1, size, FORMAT_RGBA_PREMULTIPLIED_ALPHA, COLORSPACE_sRGB, GAMMA_LINEAR);
  35         tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_LINEAR);
  36
  37         EXPECT_EQ(0.0f, out_data[3]);
  38         EXPECT_EQ(0.0f, out_data[7]);
  39 }
  40
  41 }  // namespace movit