#include <algorithm>
-EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, ColorSpace color_space, GammaCurve gamma_curve)
+EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height, MovitPixelFormat pixel_format, ColorSpace color_space, GammaCurve gamma_curve)
: chain(width, height), width(width), height(height)
{
- add_input(data, color_space, gamma_curve);
+ 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);
+ 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();
}
-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)
{
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)
+void EffectChainTester::run(float *out_data, GLenum format, ColorSpace color_space, GammaCurve gamma_curve)
{
- ImageFormat format;
- format.color_space = color_space;
- format.gamma_curve = gamma_curve;
- chain.add_output(format);
+ ImageFormat image_format;
+ image_format.color_space = color_space;
+ image_format.gamma_curve = gamma_curve;
+ chain.add_output(image_format);
chain.finalize();
- glViewport(0, 0, width, height);
- chain.render_to_screen();
+ chain.render_to_fbo(fbo, width, height);
+
+ glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+ glReadPixels(0, 0, width, height, format, GL_FLOAT, out_data);
- glReadPixels(0, 0, width, height, GL_RED, GL_FLOAT, out_data);
+ if (format == GL_RGBA) {
+ width *= 4;
+ }
// Flip upside-down to compensate for different origin.
for (unsigned y = 0; y < height / 2; ++y) {
}
}
-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);