X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=test_util.cpp;h=be34583805df68a2da1cedc5e8212eb380bf8cdf;hp=a52eb797782fbad2f0f4aae297d2248322903a75;hb=85f9719bf3519b1f1942738d11601584f5d38725;hpb=5718299276a6966eddc2f3fb5948a6dd1bbdef90 diff --git a/test_util.cpp b/test_util.cpp index a52eb79..be34583 100644 --- a/test_util.cpp +++ b/test_util.cpp @@ -1,63 +1,180 @@ -#include "test_util.h" +#include +#include +#include +#include +#include + #include "flat_input.h" #include "gtest/gtest.h" +#include "init.h" +#include "resource_pool.h" +#include "test_util.h" +#include "util.h" -#include -#include +using namespace std; -#include +class Input; + +namespace { + +// Not thread-safe, but this isn't a big problem for testing. +ResourcePool *get_static_pool() +{ + static ResourcePool *resource_pool = NULL; + if (!resource_pool) { + resource_pool = new ResourcePool(); + } + return resource_pool; +} + +// Flip upside-down to compensate for different origin. +template +void vertical_flip(T *data, unsigned width, unsigned height) +{ + for (unsigned y = 0; y < height / 2; ++y) { + unsigned flip_y = height - y - 1; + for (unsigned x = 0; x < width; ++x) { + swap(data[y * width + x], data[flip_y * width + x]); + } + } +} + +} // namespace + +EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, + MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, + GLenum framebuffer_format) + : chain(width, height, get_static_pool()), width(width), height(height), finalized(false) +{ + init_movit(".", MOVIT_DEBUG_OFF); + + if (data != NULL) { + add_input(data, pixel_format, color_space, gamma_curve); + } + + glGenTextures(1, &texnum); + check_error(); + glBindTexture(GL_TEXTURE_2D, texnum); + check_error(); + glTexImage2D(GL_TEXTURE_2D, 0, framebuffer_format, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL); + check_error(); + + glGenFramebuffers(1, &fbo); + check_error(); + glBindFramebuffer(GL_FRAMEBUFFER, fbo); + check_error(); + glFramebufferTexture2D( + GL_FRAMEBUFFER, + GL_COLOR_ATTACHMENT0, + GL_TEXTURE_2D, + texnum, + 0); + check_error(); + glBindFramebuffer(GL_FRAMEBUFFER, 0); + check_error(); +} + +EffectChainTester::~EffectChainTester() +{ + glDeleteFramebuffers(1, &fbo); + check_error(); + glDeleteTextures(1, &texnum); + check_error(); +} -EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve) - : chain(width, height), width(width), height(height) +Input *EffectChainTester::add_input(const float *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve) { ImageFormat format; format.color_space = color_space; format.gamma_curve = gamma_curve; - FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height); + FlatInput *input = new FlatInput(format, pixel_format, GL_FLOAT, width, height); input->set_pixel_data(data); chain.add_input(input); + return input; } -void EffectChainTester::run(float *out_data, ColorSpace color_space, GammaCurve gamma_curve) +Input *EffectChainTester::add_input(const unsigned char *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve) { ImageFormat format; format.color_space = color_space; format.gamma_curve = gamma_curve; - chain.add_output(format); - chain.finalize(); - glViewport(0, 0, width, height); - chain.render_to_screen(); + FlatInput *input = new FlatInput(format, pixel_format, GL_UNSIGNED_BYTE, width, height); + input->set_pixel_data(data); + chain.add_input(input); + return input; +} - glReadPixels(0, 0, width, height, GL_RED, GL_FLOAT, out_data); +void EffectChainTester::run(float *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format) +{ + if (!finalized) { + finalize_chain(color_space, gamma_curve, alpha_format); + } - // Flip upside-down to compensate for different origin. - for (unsigned y = 0; y < height / 2; ++y) { - unsigned flip_y = height - y - 1; - for (unsigned x = 0; x < width; ++x) { - std::swap(out_data[y * width + x], out_data[flip_y * width + x]); - } + chain.render_to_fbo(fbo, width, height); + + glBindFramebuffer(GL_FRAMEBUFFER, fbo); + glReadPixels(0, 0, width, height, format, GL_FLOAT, out_data); + + if (format == GL_RGBA) { + width *= 4; + } + + vertical_flip(out_data, width, height); +} + +void EffectChainTester::run(unsigned char *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format) +{ + if (!finalized) { + finalize_chain(color_space, gamma_curve, alpha_format); + } + + chain.render_to_fbo(fbo, width, height); + + glBindFramebuffer(GL_FRAMEBUFFER, fbo); + glReadPixels(0, 0, width, height, format, GL_UNSIGNED_BYTE, out_data); + + if (format == GL_RGBA) { + width *= 4; } + + vertical_flip(out_data, width, height); +} + +void EffectChainTester::finalize_chain(Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format) +{ + assert(!finalized); + ImageFormat image_format; + image_format.color_space = color_space; + image_format.gamma_curve = gamma_curve; + chain.add_output(image_format, alpha_format); + chain.finalize(); + finalized = true; } -void expect_equal(const float *ref, const float *result, unsigned width, unsigned height) +void expect_equal(const float *ref, const float *result, unsigned width, unsigned height, float largest_difference_limit, float rms_limit) { float largest_difference = -1.0f; float squared_difference = 0.0f; + int largest_diff_x = -1, largest_diff_y = -1; for (unsigned y = 0; y < height; ++y) { for (unsigned x = 0; x < width; ++x) { float diff = ref[y * width + x] - result[y * width + x]; - largest_difference = std::max(largest_difference, fabsf(diff)); + if (fabs(diff) > largest_difference) { + largest_difference = fabs(diff); + largest_diff_x = x; + largest_diff_y = y; + } squared_difference += diff * diff; } } - const float largest_difference_limit = 1.5 / 255.0; - const float rms_limit = 0.5 / 255.0; - - EXPECT_LT(largest_difference, largest_difference_limit); + EXPECT_LT(largest_difference, largest_difference_limit) + << "Largest difference is in x=" << largest_diff_x << ", y=" << largest_diff_y << ":\n" + << "Reference: " << ref[largest_diff_y * width + largest_diff_x] << "\n" + << "Result: " << result[largest_diff_y * width + largest_diff_x]; float rms = sqrt(squared_difference) / (width * height); EXPECT_LT(rms, rms_limit); @@ -82,3 +199,47 @@ void expect_equal(const float *ref, const float *result, unsigned width, unsigne } } } + +void expect_equal(const unsigned char *ref, const unsigned char *result, unsigned width, unsigned height, unsigned largest_difference_limit, float rms_limit) +{ + assert(width > 0); + assert(height > 0); + + float *ref_float = new float[width * height]; + float *result_float = new float[width * height]; + + for (unsigned y = 0; y < height; ++y) { + for (unsigned x = 0; x < width; ++x) { + ref_float[y * width + x] = ref[y * width + x]; + result_float[y * width + x] = result[y * width + x]; + } + } + + expect_equal(ref_float, result_float, width, height, largest_difference_limit, rms_limit); + + delete[] ref_float; + delete[] result_float; +} + +void test_accuracy(const float *expected, const float *result, unsigned num_values, double absolute_error_limit, double relative_error_limit, double local_relative_error_limit, double rms_limit) +{ + double squared_difference = 0.0; + for (unsigned i = 0; i < num_values; ++i) { + double absolute_error = fabs(expected[i] - result[i]); + squared_difference += absolute_error * absolute_error; + EXPECT_LT(absolute_error, absolute_error_limit); + + if (expected[i] > 0.0) { + double relative_error = fabs(absolute_error / expected[i]); + + EXPECT_LT(relative_error, relative_error_limit); + } + if (i < num_values - 1) { + double delta = expected[i + 1] - expected[i]; + double local_relative_error = fabs(absolute_error / delta); + EXPECT_LT(local_relative_error, local_relative_error_limit); + } + } + double rms = sqrt(squared_difference) / num_values; + EXPECT_LT(rms, rms_limit); +}