6 #include <gtest/gtest.h>
7 #include <gtest/gtest-message.h>
9 #include "flat_input.h"
11 #include "resource_pool.h"
12 #include "test_util.h"
23 // Not thread-safe, but this isn't a big problem for testing.
24 ResourcePool *get_static_pool()
26 static ResourcePool *resource_pool = NULL;
28 resource_pool = new ResourcePool();
33 // Flip upside-down to compensate for different origin.
35 void vertical_flip(T *data, unsigned width, unsigned height)
37 for (unsigned y = 0; y < height / 2; ++y) {
38 unsigned flip_y = height - y - 1;
39 for (unsigned x = 0; x < width; ++x) {
40 swap(data[y * width + x], data[flip_y * width + x]);
47 EffectChainTester::EffectChainTester(const float *data, unsigned width, unsigned height,
48 MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve,
49 GLenum framebuffer_format)
50 : chain(width, height, get_static_pool()), width(width), height(height), framebuffer_format(framebuffer_format), output_added(false), finalized(false)
52 CHECK(init_movit(".", MOVIT_DEBUG_OFF));
55 add_input(data, pixel_format, color_space, gamma_curve);
59 EffectChainTester::~EffectChainTester()
63 Input *EffectChainTester::add_input(const float *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, int input_width, int input_height)
66 format.color_space = color_space;
67 format.gamma_curve = gamma_curve;
69 if (input_width == -1) {
72 if (input_height == -1) {
73 input_height = height;
76 FlatInput *input = new FlatInput(format, pixel_format, GL_FLOAT, input_width, input_height);
77 input->set_pixel_data(data);
78 chain.add_input(input);
82 Input *EffectChainTester::add_input(const unsigned char *data, MovitPixelFormat pixel_format, Colorspace color_space, GammaCurve gamma_curve, int input_width, int input_height)
85 format.color_space = color_space;
86 format.gamma_curve = gamma_curve;
88 if (input_width == -1) {
91 if (input_height == -1) {
92 input_height = height;
95 FlatInput *input = new FlatInput(format, pixel_format, GL_UNSIGNED_BYTE, input_width, input_height);
96 input->set_pixel_data(data);
97 chain.add_input(input);
101 void EffectChainTester::run(float *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format)
103 internal_run(out_data, GL_FLOAT, format, color_space, gamma_curve, alpha_format);
106 void EffectChainTester::run(unsigned char *out_data, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format)
108 internal_run(out_data, GL_UNSIGNED_BYTE, format, color_space, gamma_curve, alpha_format);
112 void EffectChainTester::internal_run(T *out_data, GLenum internal_format, GLenum format, Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format)
115 finalize_chain(color_space, gamma_curve, alpha_format);
119 if (framebuffer_format == GL_RGBA8) {
120 type = GL_UNSIGNED_BYTE;
121 } else if (framebuffer_format == GL_RGBA16F || framebuffer_format == GL_RGBA32F) {
124 // Add more here as needed.
130 glGenTextures(1, &texnum);
132 glBindTexture(GL_TEXTURE_2D, texnum);
134 glTexImage2D(GL_TEXTURE_2D, 0, framebuffer_format, width, height, 0, GL_RGBA, type, NULL);
137 glGenFramebuffers(1, &fbo);
139 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
141 glFramebufferTexture2D(
143 GL_COLOR_ATTACHMENT0,
148 glBindFramebuffer(GL_FRAMEBUFFER, 0);
151 chain.render_to_fbo(fbo, width, height);
153 glBindFramebuffer(GL_FRAMEBUFFER, fbo);
155 if (!epoxy_is_desktop_gl() && (format == GL_RED || format == GL_BLUE || format == GL_ALPHA)) {
156 // GLES will only read GL_RGBA.
157 T *temp = new T[width * height * 4];
158 glReadPixels(0, 0, width, height, GL_RGBA, internal_format, temp);
160 if (format == GL_ALPHA) {
161 for (unsigned i = 0; i < width * height; ++i) {
162 out_data[i] = temp[i * 4 + 3];
164 } else if (format == GL_BLUE) {
165 for (unsigned i = 0; i < width * height; ++i) {
166 out_data[i] = temp[i * 4 + 2];
169 for (unsigned i = 0; i < width * height; ++i) {
170 out_data[i] = temp[i * 4];
175 glReadPixels(0, 0, width, height, format, internal_format, out_data);
179 glDeleteFramebuffers(1, &fbo);
181 glDeleteTextures(1, &texnum);
184 if (format == GL_RGBA) {
188 vertical_flip(out_data, width, height);
191 void EffectChainTester::add_output(const ImageFormat &format, OutputAlphaFormat alpha_format)
193 chain.add_output(format, alpha_format);
197 void EffectChainTester::add_ycbcr_output(const ImageFormat &format, OutputAlphaFormat alpha_format, const YCbCrFormat &ycbcr_format)
199 chain.add_ycbcr_output(format, alpha_format, ycbcr_format);
203 void EffectChainTester::finalize_chain(Colorspace color_space, GammaCurve gamma_curve, OutputAlphaFormat alpha_format)
207 ImageFormat image_format;
208 image_format.color_space = color_space;
209 image_format.gamma_curve = gamma_curve;
210 chain.add_output(image_format, alpha_format);
217 void expect_equal(const float *ref, const float *result, unsigned width, unsigned height, float largest_difference_limit, float rms_limit)
219 float largest_difference = -1.0f;
220 float squared_difference = 0.0f;
221 int largest_diff_x = -1, largest_diff_y = -1;
223 for (unsigned y = 0; y < height; ++y) {
224 for (unsigned x = 0; x < width; ++x) {
225 float diff = ref[y * width + x] - result[y * width + x];
226 if (fabs(diff) > largest_difference) {
227 largest_difference = fabs(diff);
231 squared_difference += diff * diff;
235 EXPECT_LT(largest_difference, largest_difference_limit)
236 << "Largest difference is in x=" << largest_diff_x << ", y=" << largest_diff_y << ":\n"
237 << "Reference: " << ref[largest_diff_y * width + largest_diff_x] << "\n"
238 << "Result: " << result[largest_diff_y * width + largest_diff_x];
240 float rms = sqrt(squared_difference) / (width * height);
241 EXPECT_LT(rms, rms_limit);
243 if (largest_difference >= largest_difference_limit || rms >= rms_limit) {
244 fprintf(stderr, "Dumping matrices for easier debugging, since at least one test failed.\n");
246 fprintf(stderr, "Reference:\n");
247 for (unsigned y = 0; y < height; ++y) {
248 for (unsigned x = 0; x < width; ++x) {
249 fprintf(stderr, "%7.4f ", ref[y * width + x]);
251 fprintf(stderr, "\n");
254 fprintf(stderr, "\nResult:\n");
255 for (unsigned y = 0; y < height; ++y) {
256 for (unsigned x = 0; x < width; ++x) {
257 fprintf(stderr, "%7.4f ", result[y * width + x]);
259 fprintf(stderr, "\n");
264 void expect_equal(const unsigned char *ref, const unsigned char *result, unsigned width, unsigned height, unsigned largest_difference_limit, float rms_limit)
269 float *ref_float = new float[width * height];
270 float *result_float = new float[width * height];
272 for (unsigned y = 0; y < height; ++y) {
273 for (unsigned x = 0; x < width; ++x) {
274 ref_float[y * width + x] = ref[y * width + x];
275 result_float[y * width + x] = result[y * width + x];
279 expect_equal(ref_float, result_float, width, height, largest_difference_limit, rms_limit);
282 delete[] result_float;
285 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)
287 double squared_difference = 0.0;
288 for (unsigned i = 0; i < num_values; ++i) {
289 double absolute_error = fabs(expected[i] - result[i]);
290 squared_difference += absolute_error * absolute_error;
291 EXPECT_LT(absolute_error, absolute_error_limit);
293 if (expected[i] > 0.0) {
294 double relative_error = fabs(absolute_error / expected[i]);
296 EXPECT_LT(relative_error, relative_error_limit);
298 if (i < num_values - 1) {
299 double delta = expected[i + 1] - expected[i];
300 double local_relative_error = fabs(absolute_error / delta);
301 EXPECT_LT(local_relative_error, local_relative_error_limit);
304 double rms = sqrt(squared_difference) / num_values;
305 EXPECT_LT(rms, rms_limit);