-#include "test_util.h"
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <algorithm>
+
#include "flat_input.h"
+#include "glew.h"
#include "gtest/gtest.h"
+#include "gtest/gtest-message.h"
+#include "init.h"
+#include "resource_pool.h"
+#include "test_util.h"
+#include "util.h"
-#include <stdio.h>
-#include <math.h>
+using namespace std;
-#include <algorithm>
+namespace movit {
-EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve)
- : chain(width, height), width(width), height(height)
+class Input;
+
+namespace {
+
+// Not thread-safe, but this isn't a big problem for testing.
+ResourcePool *get_static_pool()
{
- add_input(data, color_space, gamma_curve);
+ static ResourcePool *resource_pool = NULL;
+ if (!resource_pool) {
+ resource_pool = new ResourcePool();
+ }
+ return resource_pool;
+}
+
+// Flip upside-down to compensate for different origin.
+template<class T>
+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)
+{
+ CHECK(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, GL_RGBA16F_ARB, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glTexImage2D(GL_TEXTURE_2D, 0, framebuffer_format, width, height, 0, GL_RGBA, GL_FLOAT, NULL);
check_error();
glGenFramebuffers(1, &fbo);
check_error();
}
-Input *EffectChainTester::add_input(const float *data, ColorSpace color_space, GammaCurve gamma_curve)
+EffectChainTester::~EffectChainTester()
+{
+ glDeleteFramebuffers(1, &fbo);
+ check_error();
+ glDeleteTextures(1, &texnum);
+ check_error();
+}
+
+Input *EffectChainTester::add_input(const float *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, int input_width, int input_height)
{
ImageFormat format;
format.color_space = color_space;
format.gamma_curve = gamma_curve;
- FlatInput *input = new FlatInput(format, FORMAT_GRAYSCALE, GL_FLOAT, width, height);
+ if (input_width == -1) {
+ input_width = width;
+ }
+ if (input_height == -1) {
+ input_height = height;
+ }
+
+ FlatInput *input = new FlatInput(format, pixel_format, GL_FLOAT, input_width, input_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, int input_width, int input_height)
{
ImageFormat format;
format.color_space = color_space;
format.gamma_curve = gamma_curve;
- chain.add_output(format);
- chain.finalize();
+
+ if (input_width == -1) {
+ input_width = width;
+ }
+ if (input_height == -1) {
+ input_height = height;
+ }
+
+ FlatInput *input = new FlatInput(format, pixel_format, GL_UNSIGNED_BYTE, input_width, input_height);
+ input->set_pixel_data(data);
+ chain.add_input(input);
+ return input;
+}
+
+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);
+ }
chain.render_to_fbo(fbo, width, height);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
- glReadPixels(0, 0, width, height, GL_RED, GL_FLOAT, out_data);
+ glReadPixels(0, 0, width, height, format, GL_FLOAT, out_data);
- // 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]);
- }
+ 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 expect_equal(const float *ref, const float *result, unsigned width, unsigned 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, 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);
}
}
}
+
+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);
+}
+
+} // namespace movit
projects / movit / blobdiff