#include <gtest/gtest.h>
#include <math.h>
+#include <memory>
+
#include "effect_chain.h"
#include "flat_input.h"
#include "image_format.h"
#include "resample_effect.h"
#include "test_util.h"
+using namespace std;
+
namespace movit {
namespace {
}
}
- EffectChainTester tester(NULL, size * 2, size * 2, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
+ EffectChainTester tester(nullptr, size * 2, size * 2, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
// the texel center right (everything is nicely symmetric).
// The approximate magnitudes have been checked against ImageMagick.
float expected_data[size * size] = {
- 0.0045, -0.0067, -0.0598, -0.0067, 0.0045,
- -0.0067, 0.0099, 0.0886, 0.0099, -0.0067,
- -0.0598, 0.0886, 0.7930, 0.0886, -0.0598,
- -0.0067, 0.0099, 0.0886, 0.0099, -0.0067,
- 0.0045, -0.0067, -0.0598, -0.0067, 0.0045,
+ 0.0045, -0.0067, -0.0599, -0.0067, 0.0045,
+ -0.0067, 0.0100, 0.0892, 0.0100, -0.0067,
+ -0.0599, 0.0890, 0.7925, 0.0892, -0.0599,
+ -0.0067, 0.0100, 0.0890, 0.0100, -0.0067,
+ 0.0045, -0.0067, -0.0599, -0.0067, 0.0045,
};
float data[size * size * 4], out_data[size * size];
}
}
- EffectChainTester tester(NULL, size, size, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
+ EffectChainTester tester(nullptr, size, size, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
};
float out_data[size * size * 9];
- EffectChainTester tester(NULL, size * 3, size * 3, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
+ EffectChainTester tester(nullptr, size * 3, size * 3, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
EXPECT_FLOAT_EQ(1.0, out_data[7 * (size * 3) + 7]);
for (unsigned y = 0; y < size * 3; ++y) {
for (unsigned x = 0; x < size * 3; ++x) {
- EXPECT_FLOAT_EQ(out_data[y * (size * 3) + x], out_data[(size * 3 - y - 1) * (size * 3) + x]);
- EXPECT_FLOAT_EQ(out_data[y * (size * 3) + x], out_data[y * (size * 3) + (size * 3 - x - 1)]);
+ EXPECT_NEAR(out_data[y * (size * 3) + x], out_data[(size * 3 - y - 1) * (size * 3) + x], 1e-6);
+ EXPECT_NEAR(out_data[y * (size * 3) + x], out_data[y * (size * 3) + (size * 3 - x - 1)], 1e-6);
}
}
}
}
}
- EffectChainTester tester(NULL, dwidth, dheight, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, GL_RGBA32F);
+ EffectChainTester tester(nullptr, dwidth, dheight, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, GL_RGBA32F);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
// Require that we are within 10-bit accuracy. Note that this limit is for
// one pass only, but the limit is tight enough that it should be good enough
// for 10-bit accuracy even after two passes.
- expect_equal(expected_data, out_data, dwidth, dheight, 0.1 / 1023.0);
+ expect_equal(expected_data, out_data, dwidth, dheight, 0.12 / 1023.0);
}
TEST(ResampleEffectTest, ReadWholePixelFromLeft) {
};
float out_data[dst_width * 1];
- EffectChainTester tester(NULL, dst_width, 1, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
+ EffectChainTester tester(nullptr, dst_width, 1, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
ImageFormat format;
format.color_space = COLORSPACE_sRGB;
// Check that we are (almost) the same no matter the rounding.
ASSERT_TRUE(resample_effect->set_float("left", 0.499f));
tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
- expect_equal(expected_data, out_data, dst_width, 1);
+ expect_equal(expected_data, out_data, dst_width, 1, 1.5f / 255.0f, 0.4f / 255.0f);
ASSERT_TRUE(resample_effect->set_float("left", 0.501f));
tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
- expect_equal(expected_data, out_data, dst_width, 1);
+ expect_equal(expected_data, out_data, dst_width, 1, 1.5f / 255.0f, 0.4f / 255.0f);
}
TEST(ResampleEffectTest, Zoom) {
expect_equal(expected_data, out_data, width, height);
}
+TEST(ResampleEffectTest, Precision) {
+ const int size = 1920; // Difficult non-power-of-two size.
+ const int offset = 5;
+
+ // Deliberately put the data of interest very close to the right,
+ // where texture coordinates are farther from 0 and thus less precise.
+ float data[size * 2] = {0};
+ data[size - offset] = 1.0f;
+ float expected_data[size * 2] = {0};
+ for (int x = 0; x < size * 2; ++x) {
+ expected_data[x] = lanczos((x - (size - 2 * offset + 1) + 0.5f) * 0.5f, 3.0f);
+ }
+ float out_data[size * 2];
+
+ EffectChainTester tester(data, size * 2, 1, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR);
+ Effect *resample_effect = tester.get_chain()->add_effect(new ResampleEffect());
+ ASSERT_TRUE(resample_effect->set_int("width", size * 2));
+ ASSERT_TRUE(resample_effect->set_int("height", 1));
+ ASSERT_TRUE(resample_effect->set_float("zoom_x", 2.0f));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
+
+ expect_equal(expected_data, out_data, size, 1);
+}
+
+#ifdef HAVE_BENCHMARK
+template<class T>
+void BM_ResampleEffect(benchmark::State &state, GammaCurve gamma_curve, GLenum output_format, const std::string &shader_type)
+{
+ DisableComputeShadersTemporarily disabler(shader_type == "fragment");
+ if (disabler.should_skip(&state)) return;
+
+ unsigned in_width = state.range(0), in_height = state.range(1);
+ unsigned out_width = state.range(2), out_height = state.range(3);
+
+ unique_ptr<T[]> data(new T[in_width * in_height * 4]);
+ unique_ptr<T[]> out_data(new T[out_width * out_height * 4]);
+
+ for (unsigned i = 0; i < in_width * in_height * 4; ++i) {
+ data[i] = rand();
+ }
+
+ EffectChainTester tester(nullptr, out_width, out_height, FORMAT_BGRA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, gamma_curve, output_format);
+ tester.add_input(data.get(), FORMAT_BGRA_POSTMULTIPLIED_ALPHA, COLORSPACE_sRGB, gamma_curve, in_width, in_height);
+ Effect *resample_effect = tester.get_chain()->add_effect(new ResampleEffect());
+
+ ASSERT_TRUE(resample_effect->set_int("width", out_width));
+ ASSERT_TRUE(resample_effect->set_int("height", out_height));
+
+ tester.benchmark(state, out_data.get(), GL_BGRA, COLORSPACE_sRGB, gamma_curve, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+}
+
+void BM_ResampleEffectFloat(benchmark::State &state, GammaCurve gamma_curve, const std::string &shader_type)
+{
+ BM_ResampleEffect<float>(state, gamma_curve, GL_RGBA16F, shader_type);
+}
+
+void BM_ResampleEffectInt8(benchmark::State &state, GammaCurve gamma_curve, const std::string &shader_type)
+{
+ BM_ResampleEffect<uint8_t>(state, gamma_curve, GL_RGBA8, shader_type);
+}
+
+BENCHMARK_CAPTURE(BM_ResampleEffectInt8, Int8Upscale, GAMMA_REC_709, "fragment")->Args({640, 360, 1280, 720})->Args({320, 180, 1280, 720})->Args({321, 181, 1280, 720})->UseRealTime()->Unit(benchmark::kMicrosecond);
+BENCHMARK_CAPTURE(BM_ResampleEffectFloat, Float32Upscale, GAMMA_LINEAR, "fragment")->Args({640, 360, 1280, 720})->Args({320, 180, 1280, 720})->Args({321, 181, 1280, 720})->UseRealTime()->Unit(benchmark::kMicrosecond);
+BENCHMARK_CAPTURE(BM_ResampleEffectInt8, Int8Downscale, GAMMA_REC_709, "fragment")->Args({1280, 720, 640, 360})->Args({1280, 720, 320, 180})->Args({1280, 720, 321, 181})->UseRealTime()->Unit(benchmark::kMicrosecond);
+BENCHMARK_CAPTURE(BM_ResampleEffectFloat, Float32Downscale, GAMMA_LINEAR, "fragment")->Args({1280, 720, 640, 360})->Args({1280, 720, 320, 180})->Args({1280, 720, 321, 181})->UseRealTime()->Unit(benchmark::kMicrosecond);
+
+#endif
+
} // namespace movit
projects / movit / blobdiff