* [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing
@ 2017-07-06 13:26 Paul Kocialkowski
2017-07-06 13:26 ` [PATCH i-g-t] " Paul Kocialkowski
` (3 more replies)
0 siblings, 4 replies; 13+ messages in thread
From: Paul Kocialkowski @ 2017-07-06 13:26 UTC (permalink / raw)
To: intel-gfx; +Cc: Lyude
I am only sending this for comments at this point, since this will need
to be reworked according to the changes made on previous series still
under review. Especially, it will benefit from making the frame save
mechanism common.
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^ permalink raw reply [flat|nested] 13+ messages in thread* [PATCH i-g-t] chamelium: Add support for VGA frame comparison testing 2017-07-06 13:26 [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing Paul Kocialkowski @ 2017-07-06 13:26 ` Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 0/2] Analogue/VGA frame comparison support Paul Kocialkowski ` (2 subsequent siblings) 3 siblings, 0 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-06 13:26 UTC (permalink / raw) To: intel-gfx; +Cc: Lyude This adds support for VGA frame comparison check. Since VGA uses a DAC-ADC chain, its data cannot be expected to be pixel perfect. Thus, it is impossible to uses a CRC check and full frames have to be analyzed instead. Such an analysis is implemented, based on both an absolute error threshold and a correlation with the expected error trend for a DAC-ADC chain. It was tested with a couple encoders and provides reliable error detection with few false positives. In case the frame does not match, it is dumped to a file in a similar fashion as CRC tests. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> --- configure.ac | 5 +- lib/Makefile.am | 2 + lib/igt_chamelium.c | 235 +++++++++++++++++++++++++++++++++++++++++++++++++++- lib/igt_chamelium.h | 6 +- tests/chamelium.c | 82 ++++++++++++++++++ 5 files changed, 325 insertions(+), 5 deletions(-) diff --git a/configure.ac b/configure.ac index 0418e605..e7c3603b 100644 --- a/configure.ac +++ b/configure.ac @@ -182,8 +182,9 @@ PKG_CHECK_MODULES(GLIB, glib-2.0) # for chamelium PKG_CHECK_MODULES(XMLRPC, xmlrpc_client, [xmlrpc=yes], [xmlrpc=no]) PKG_CHECK_MODULES(PIXMAN, pixman-1, [pixman=yes], [pixman=no]) -AM_CONDITIONAL(HAVE_CHAMELIUM, [test "x$xmlrpc$pixman" = xyesyes]) -if test x"$xmlrpc$pixman" = xyesyes; then +PKG_CHECK_MODULES(GSL, gsl, [gsl=yes], [gsl=no]) +AM_CONDITIONAL(HAVE_CHAMELIUM, [test "x$xmlrpc$pixman$gsl" = xyesyesyes]) +if test x"$xmlrpc$pixman$gsl" = xyesyesyes; then AC_DEFINE(HAVE_CHAMELIUM, 1, [Enable Chamelium support]) fi diff --git a/lib/Makefile.am b/lib/Makefile.am index d4f41128..fb922ced 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -35,6 +35,7 @@ AM_CFLAGS = \ $(DRM_CFLAGS) \ $(PCIACCESS_CFLAGS) \ $(LIBUNWIND_CFLAGS) \ + $(GSL_CFLAGS) \ $(KMOD_CFLAGS) \ $(PROCPS_CFLAGS) \ $(DEBUG_CFLAGS) \ @@ -54,6 +55,7 @@ libintel_tools_la_LIBADD = \ $(DRM_LIBS) \ $(PCIACCESS_LIBS) \ $(PROCPS_LIBS) \ + $(GSL_LIBS) \ $(KMOD_LIBS) \ $(CAIRO_LIBS) \ $(LIBUDEV_LIBS) \ diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c index 9aca6842..79ea8b4f 100644 --- a/lib/igt_chamelium.c +++ b/lib/igt_chamelium.c @@ -34,6 +34,8 @@ #include <glib.h> #include <pixman.h> #include <cairo.h> +#include <gsl/gsl_statistics_double.h> +#include <gsl/gsl_fit.h> #include "igt.h" @@ -1035,6 +1037,235 @@ void chamelium_write_frame_to_png(const struct chamelium *chamelium, } /** + * chamelium_analogue_frame_crop: + * @chamelium: The Chamelium instance to use + * @dump: The chamelium frame dump to crop + * @width: The cropped frame width + * @height: The cropped frame height + * + * Detects the corners of a chamelium frame and crops it to the requested + * width/height. This is useful for VGA frame dumps that also contain the + * pixels dumped during the blanking intervals. + * + * The detection is done on a brightness-threshold-basis, that is adapted + * to the reference frame used by i-g-t. It may not be as relevant for other + * frames. + */ +void chamelium_crop_analogue_frame(struct chamelium_frame_dump *dump, int width, + int height) +{ + unsigned char *bgr; + unsigned char *p; + unsigned char *q; + int top, left; + int x, y, xx, yy; + int score; + + if (dump->width == width && dump->height == height) + return; + + /* Start with the most bottom-right position. */ + top = dump->height - height; + left = dump->width - width; + + igt_assert(top >= 0 && left >= 0); + + igt_debug("Cropping analogue frame from %dx%d to %dx%d\n", dump->width, + dump->height, width, height); + + /* Detect the top-left corner of the frame. */ + for (x = 0; x < dump->width; x++) { + for (y = 0; y < dump->height; y++) { + p = &dump->bgr[(x + y * dump->width) * 3]; + + /* Detect significantly bright pixels. */ + if (p[0] < 50 && p[1] < 50 && p[2] < 50) + continue; + + /* + * Make sure close-by pixels are also significantly + * bright. + */ + score = 0; + for (xx = x; xx < x + 10; xx++) { + for (yy = y; yy < y + 10; yy++) { + p = &dump->bgr[(xx + yy * dump->width) * 3]; + + if (p[0] > 50 && p[1] > 50 && p[2] > 50) + score++; + } + } + + /* Not enough pixels are significantly bright. */ + if (score < 25) + continue; + + if (x < left) + left = x; + + if (y < top) + top = y; + + if (left == x || top == y) + continue; + } + } + + igt_debug("Detected analogue frame edges at %dx%d\n", left, top); + + /* Crop the frame given the detected top-left corner. */ + bgr = malloc(width * height * 3); + + for (y = 0; y < height; y++) { + p = &dump->bgr[(left + (top + y) * dump->width) * 3]; + q = &bgr[(y * width) * 3]; + memcpy(q, p, width * 3); + } + + free(dump->bgr); + dump->width = width; + dump->height = height; + dump->bgr = bgr; +} + +/** + * chamelium_check_analogue_frame_eq: + * @chamelium: The Chamelium instance to use + * @dump: The chamelium frame dump to check + * @fb: The framebuffer to check against + * + * Checks that the analogue image contained in the chamelium frame dump matches + * the given framebuffer. + * + * In order to determine whether the frame matches the reference, the following + * reasoning is implemented: + * 1. The absolute error for each color value of the reference is collected. + * 2. The average absolute error is calculated for each color value of the + * reference and must not go above 60 (23.5 % of the total range). + * 3. A linear fit for the average absolute error from the pixel value is + * calculated, as a DAC-ADC chain is expected to have a linear error curve. + * 4. The linear fit is correlated with the actual average absolute error for + * the frame and the correlation coefficient is checked to be > 0.985, + * indicating a match with the expected error trend. + * + * Most errors (e.g. due to scaling, rotation, color space, etc) can be + * reliably detected this way, with a minimized number of false-positives. + * However, the brightest values (250 and up) are ignored as the error trend + * is often not linear there in practice due to clamping. + * + * Returns: a boolean indicating whether the frames match + */ +bool chamelium_check_analogue_frame_match(const struct chamelium *chamelium, + const struct chamelium_frame_dump *dump, + struct igt_fb *fb) +{ + cairo_t *cr; + cairo_surface_t *fb_surface; + pixman_image_t *reference_src, *reference_bgr; + int w = dump->width, h = dump->height; + int error_count[3][256][2] = { 0 }; + double error_average[4][250]; + double error_trend[250]; + double c0, c1, cov00, cov01, cov11, sumsq; + double correlation; + unsigned char *bgr; + unsigned char *p; + unsigned char *q; + bool match = true; + int diff; + int x, y; + int i, j; + + /* Get the cairo surface for the framebuffer */ + cr = igt_get_cairo_ctx(chamelium->drm_fd, fb); + fb_surface = cairo_get_target(cr); + cairo_surface_reference(fb_surface); + cairo_destroy(cr); + + /* + * Convert the reference image into the same format as the chamelium + * image + */ + reference_src = pixman_image_create_bits( + PIXMAN_x8r8g8b8, w, h, + (void*)cairo_image_surface_get_data(fb_surface), + cairo_image_surface_get_stride(fb_surface)); + reference_bgr = convert_frame_format(reference_src, PIXMAN_b8g8r8); + pixman_image_unref(reference_src); + + bgr = (unsigned char *) pixman_image_get_data(reference_bgr); + + /* Collect the absolute error for each color value */ + for (x = 0; x < w; x++) { + for (y = 0; y < h; y++) { + p = &dump->bgr[(x + y * w) * 3]; + q = &bgr[(x + y * w) * 3]; + + for (i = 0; i < 3; i++) { + diff = (int) p[i] - q[i]; + if (diff < 0) + diff = -diff; + + error_count[i][q[i]][0] += diff; + error_count[i][q[i]][1]++; + } + } + } + + /* Calculate the average absolute error for each color value */ + for (i = 0; i < 250; i++) { + error_average[0][i] = i; + + for (j = 1; j < 4; j++) { + error_average[j][i] = (double) error_count[j-1][i][0] / + error_count[j-1][i][1]; + + if (error_average[j][i] > 60) { + igt_warn("Error average too high (%f)\n", + error_average[j][i]); + + match = false; + goto complete; + } + } + } + + /* + * Calculate error trend from linear fit. + * A DAC-ADC chain is expected to have a linear absolute error on + * most of its range + */ + for (i = 1; i < 4; i++) { + gsl_fit_linear((const double *) &error_average[0], 1, + (const double *) &error_average[i], 1, 250, + &c0, &c1, &cov00, &cov01, &cov11, &sumsq); + + for (j = 0; j < 250; j++) + error_trend[j] = c0 + j * c1; + + correlation = gsl_stats_correlation((const double *) &error_trend, + 1, + (const double *) &error_average[i], + 1, 250); + + if (correlation < 0.985) { + igt_warn("Error with reference not correlated (%f)\n", + correlation); + + match = false; + goto complete; + } + } + +complete: + + pixman_image_unref(reference_bgr); + cairo_surface_destroy(fb_surface); + + return match; +} + +/** * chamelium_get_frame_limit: * @chamelium: The Chamelium instance to use * @port: The port to check the frame limit on @@ -1482,7 +1713,7 @@ igt_constructor { /* Frame dumps can be large, so we need to be able to handle very large * responses * - * Limit here is 10MB + * Limit here is 15MB */ - xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 10485760); + xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 15728640); } diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h index aa881971..df1ebd12 100644 --- a/lib/igt_chamelium.h +++ b/lib/igt_chamelium.h @@ -102,13 +102,17 @@ int chamelium_get_captured_frame_count(struct chamelium *chamelium); int chamelium_get_frame_limit(struct chamelium *chamelium, struct chamelium_port *port, int w, int h); - void chamelium_assert_frame_eq(const struct chamelium *chamelium, const struct chamelium_frame_dump *dump, struct igt_fb *fb); void chamelium_write_frame_to_png(const struct chamelium *chamelium, const struct chamelium_frame_dump *dump, const char *filename); +void chamelium_crop_analogue_frame(struct chamelium_frame_dump *dump, int width, + int height); +bool chamelium_check_analogue_frame_match(const struct chamelium *chamelium, + const struct chamelium_frame_dump *dump, + struct igt_fb *fb); void chamelium_destroy_frame_dump(struct chamelium_frame_dump *dump); #endif /* IGT_CHAMELIUM_H */ diff --git a/tests/chamelium.c b/tests/chamelium.c index 3d95c05c..5ccdee7c 100644 --- a/tests/chamelium.c +++ b/tests/chamelium.c @@ -360,6 +360,10 @@ enable_output(data_t *data, BROADCAST_RGB_FULL); igt_display_commit(display); + + if (chamelium_port_get_type(port) == DRM_MODE_CONNECTOR_VGA) + usleep(250000); + chamelium_port_wait_video_input_stable(data->chamelium, port, HOTPLUG_TIMEOUT); @@ -470,6 +474,81 @@ test_display_crc(data_t *data, struct chamelium_port *port, int count) } static void +test_analogue_frame_dump(data_t *data, struct chamelium_port *port) +{ + igt_display_t display; + igt_output_t *output; + igt_plane_t *primary; + struct igt_fb fb; + struct chamelium_frame_dump *frame; + drmModeModeInfo *mode; + drmModeConnector *connector; + int fb_id, i; + const char *connector_name; + char *frame_dump_path; + char path[PATH_MAX]; + bool eq; + + output = prepare_output(data, &display, port); + connector = chamelium_port_get_connector(data->chamelium, port, false); + primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); + igt_assert(primary); + + connector_name = kmstest_connector_type_str(connector->connector_type); + frame_dump_path = chamelium_get_frame_dump_path(data->chamelium); + + for (i = 0; i < connector->count_modes; i++) { + mode = &connector->modes[i]; + + fb_id = igt_create_color_pattern_fb(data->drm_fd, + mode->hdisplay, mode->vdisplay, + DRM_FORMAT_XRGB8888, + LOCAL_DRM_FORMAT_MOD_NONE, + 0, 0, 0, &fb); + igt_assert(fb_id > 0); + + enable_output(data, port, output, mode, &fb); + + igt_debug("Reading frame dumps from Chamelium...\n"); + + frame = chamelium_port_dump_pixels(data->chamelium, port, 0, 0, + 0, 0); + + chamelium_crop_analogue_frame(frame, mode->hdisplay, + mode->vdisplay); + + eq = chamelium_check_analogue_frame_match(data->chamelium, + frame, &fb); + if (!eq && frame_dump_path) { + igt_debug("Dumping reference and chamelium frames to %s...\n", + frame_dump_path); + + snprintf(path, PATH_MAX, "%s/frame-reference-%s.png", + frame_dump_path, connector_name); + igt_write_fb_to_png(data->drm_fd, &fb, path); + + snprintf(path, PATH_MAX, "%s/frame-chamelium-%s.png", + frame_dump_path, connector_name); + chamelium_write_frame_to_png(data->chamelium, + frame, path); + + chamelium_destroy_frame_dump(frame); + } + + igt_fail_on_f(!eq, + "Chamelium analogue frame mismatch with reference\n"); + + chamelium_destroy_frame_dump(frame); + + disable_output(data, port, output); + igt_remove_fb(data->drm_fd, &fb); + } + + drmModeFreeConnector(connector); + igt_display_fini(&display); +} + +static void test_hpd_without_ddc(data_t *data, struct chamelium_port *port) { struct udev_monitor *mon = igt_watch_hotplug(); @@ -706,6 +785,9 @@ igt_main connector_subtest("vga-hpd-without-ddc", VGA) test_hpd_without_ddc(&data, port); + + connector_subtest("vga-frame-dump", VGA) + test_analogue_frame_dump(&data, port); } igt_subtest_group { -- 2.13.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH i-g-t v2 0/2] Analogue/VGA frame comparison support 2017-07-06 13:26 [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing Paul Kocialkowski 2017-07-06 13:26 ` [PATCH i-g-t] " Paul Kocialkowski @ 2017-07-12 14:57 ` Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 1/2] lib/igt_frame: Add support for analogue frame comparison testing Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 2/2] chamelium: Add support for VGA " Paul Kocialkowski 2017-07-17 17:38 ` [PATCH i-g-t 0/1] " Lyude Paul 2017-07-19 13:48 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 3 siblings, 2 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-12 14:57 UTC (permalink / raw) To: intel-gfx; +Cc: Lyude Changes since v1: * Split analogue frame comparison to igt_frame, using cairo surfaces * Added a chamelium helper for analogue frame checking and frame dumping There's nothing holding off this series on my side anymore, so it can now be merged as-is. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH i-g-t v2 1/2] lib/igt_frame: Add support for analogue frame comparison testing 2017-07-12 14:57 ` [PATCH i-g-t v2 0/2] Analogue/VGA frame comparison support Paul Kocialkowski @ 2017-07-12 14:57 ` Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 2/2] chamelium: Add support for VGA " Paul Kocialkowski 1 sibling, 0 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-12 14:57 UTC (permalink / raw) To: intel-gfx; +Cc: Lyude This adds support for analogue frame comparison check, as used in VGA. Since VGA uses a DAC-ADC chain, its data cannot be expected to be pixel perfect. Thus, it is impossible to uses a CRC check and full frames have to be analyzed instead. Such an analysis is implemented, based on both an absolute error threshold and a correlation with the expected error trend for a DAC-ADC chain. It was tested with a couple encoders and provides reliable error detection with few false positives. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> --- configure.ac | 1 + lib/Makefile.am | 2 + lib/igt_frame.c | 131 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/igt_frame.h | 2 + 4 files changed, 136 insertions(+) diff --git a/configure.ac b/configure.ac index bf09927c..63ed4d27 100644 --- a/configure.ac +++ b/configure.ac @@ -178,6 +178,7 @@ if test x"$udev" = xyes; then AC_DEFINE(HAVE_UDEV,1,[Enable udev-based monitor hotplug detection]) fi PKG_CHECK_MODULES(GLIB, glib-2.0) +PKG_CHECK_MODULES(GSL, gsl) # for chamelium PKG_CHECK_MODULES(XMLRPC, xmlrpc_client, [xmlrpc=yes], [xmlrpc=no]) diff --git a/lib/Makefile.am b/lib/Makefile.am index d4f41128..fb922ced 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -35,6 +35,7 @@ AM_CFLAGS = \ $(DRM_CFLAGS) \ $(PCIACCESS_CFLAGS) \ $(LIBUNWIND_CFLAGS) \ + $(GSL_CFLAGS) \ $(KMOD_CFLAGS) \ $(PROCPS_CFLAGS) \ $(DEBUG_CFLAGS) \ @@ -54,6 +55,7 @@ libintel_tools_la_LIBADD = \ $(DRM_LIBS) \ $(PCIACCESS_LIBS) \ $(PROCPS_LIBS) \ + $(GSL_LIBS) \ $(KMOD_LIBS) \ $(CAIRO_LIBS) \ $(LIBUDEV_LIBS) \ diff --git a/lib/igt_frame.c b/lib/igt_frame.c index dfafe53d..dc84fe01 100644 --- a/lib/igt_frame.c +++ b/lib/igt_frame.c @@ -29,6 +29,8 @@ #include <fcntl.h> #include <pixman.h> #include <cairo.h> +#include <gsl/gsl_statistics_double.h> +#include <gsl/gsl_fit.h> #include "igt.h" @@ -135,3 +137,132 @@ void igt_write_compared_frames_to_png(cairo_surface_t *reference, close(fd); } + +/** + * igt_check_analogue_frame_match: + * @reference: The reference cairo surface + * @capture: The captured cairo surface + * + * Checks that the analogue image contained in the chamelium frame dump matches + * the given framebuffer. + * + * In order to determine whether the frame matches the reference, the following + * reasoning is implemented: + * 1. The absolute error for each color value of the reference is collected. + * 2. The average absolute error is calculated for each color value of the + * reference and must not go above 60 (23.5 % of the total range). + * 3. A linear fit for the average absolute error from the pixel value is + * calculated, as a DAC-ADC chain is expected to have a linear error curve. + * 4. The linear fit is correlated with the actual average absolute error for + * the frame and the correlation coefficient is checked to be > 0.985, + * indicating a match with the expected error trend. + * + * Most errors (e.g. due to scaling, rotation, color space, etc) can be + * reliably detected this way, with a minimized number of false-positives. + * However, the brightest values (250 and up) are ignored as the error trend + * is often not linear there in practice due to clamping. + * + * Returns: a boolean indicating whether the frames match + */ + +bool igt_check_analogue_frame_match(cairo_surface_t *reference, + cairo_surface_t *capture) +{ + pixman_image_t *reference_src, *capture_src; + int w, h; + int error_count[3][256][2] = { 0 }; + double error_average[4][250]; + double error_trend[250]; + double c0, c1, cov00, cov01, cov11, sumsq; + double correlation; + unsigned char *reference_pixels, *capture_pixels; + unsigned char *p; + unsigned char *q; + bool match = true; + int diff; + int x, y; + int i, j; + + w = cairo_image_surface_get_width(reference); + h = cairo_image_surface_get_height(reference); + + reference_src = pixman_image_create_bits( + PIXMAN_x8r8g8b8, w, h, + (void*)cairo_image_surface_get_data(reference), + cairo_image_surface_get_stride(reference)); + reference_pixels = (unsigned char *) pixman_image_get_data(reference_src); + + capture_src = pixman_image_create_bits( + PIXMAN_x8r8g8b8, w, h, + (void*)cairo_image_surface_get_data(capture), + cairo_image_surface_get_stride(capture)); + capture_pixels = (unsigned char *) pixman_image_get_data(capture_src); + + /* Collect the absolute error for each color value */ + for (x = 0; x < w; x++) { + for (y = 0; y < h; y++) { + p = &capture_pixels[(x + y * w) * 4]; + q = &reference_pixels[(x + y * w) * 4]; + + for (i = 1; i < 4; i++) { + diff = (int) p[i] - q[i]; + if (diff < 0) + diff = -diff; + + error_count[i-1][q[i-1]][0] += diff; + error_count[i-1][q[i-1]][1]++; + } + } + } + + /* Calculate the average absolute error for each color value */ + for (i = 0; i < 250; i++) { + error_average[0][i] = i; + + for (j = 1; j < 4; j++) { + error_average[j][i] = (double) error_count[j-1][i][0] / + error_count[j-1][i][1]; + + if (error_average[j][i] > 60) { + igt_warn("Error average too high (%f)\n", + error_average[j][i]); + + match = false; + goto complete; + } + } + } + + /* + * Calculate error trend from linear fit. + * A DAC-ADC chain is expected to have a linear absolute error on + * most of its range + */ + for (i = 1; i < 4; i++) { + gsl_fit_linear((const double *) &error_average[0], 1, + (const double *) &error_average[i], 1, 250, + &c0, &c1, &cov00, &cov01, &cov11, &sumsq); + + for (j = 0; j < 250; j++) + error_trend[j] = c0 + j * c1; + + correlation = gsl_stats_correlation((const double *) &error_trend, + 1, + (const double *) &error_average[i], + 1, 250); + + if (correlation < 0.985) { + igt_warn("Error with reference not correlated (%f)\n", + correlation); + + match = false; + goto complete; + } + } + +complete: + pixman_image_unref(reference_src); + pixman_image_unref(capture_src); + + return match; +} diff --git a/lib/igt_frame.h b/lib/igt_frame.h index ec6a1643..2427b33b 100644 --- a/lib/igt_frame.h +++ b/lib/igt_frame.h @@ -39,5 +39,7 @@ void igt_write_compared_frames_to_png(cairo_surface_t *reference, cairo_surface_t *capture, const char *reference_suffix, const char *capture_suffix); +bool igt_check_analogue_frame_match(cairo_surface_t *reference, + cairo_surface_t *capture); #endif -- 2.13.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH i-g-t v2 2/2] chamelium: Add support for VGA frame comparison testing 2017-07-12 14:57 ` [PATCH i-g-t v2 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 1/2] lib/igt_frame: Add support for analogue frame comparison testing Paul Kocialkowski @ 2017-07-12 14:57 ` Paul Kocialkowski 2017-07-17 17:35 ` Lyude Paul 1 sibling, 1 reply; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-12 14:57 UTC (permalink / raw) To: intel-gfx; +Cc: Lyude This adds support for VGA frame comparison testing with the reference generated from cairo. The retrieved frame from the chamelium is first cropped, as it contains the blanking intervals, through a dedicated helper. Another helper function asserts that the analogue frame matches or dump it to png if not. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> --- lib/igt_chamelium.c | 164 ++++++++++++++++++++++++++++++++++++++++++++++++++-- lib/igt_chamelium.h | 7 ++- lib/igt_frame.c | 6 +- tests/chamelium.c | 57 ++++++++++++++++++ 4 files changed, 225 insertions(+), 9 deletions(-) diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c index df49936b..8701192e 100644 --- a/lib/igt_chamelium.c +++ b/lib/igt_chamelium.c @@ -938,6 +938,8 @@ static cairo_surface_t *convert_frame_dump_argb32(const struct chamelium_frame_d int w = dump->width, h = dump->height; uint32_t *bits_bgr = (uint32_t *) dump->bgr; unsigned char *bits_argb; + unsigned char *bits_target; + int size; image_bgr = pixman_image_create_bits( PIXMAN_b8g8r8, w, h, bits_bgr, @@ -947,9 +949,13 @@ static cairo_surface_t *convert_frame_dump_argb32(const struct chamelium_frame_d bits_argb = (unsigned char *) pixman_image_get_data(image_argb); - dump_surface = cairo_image_surface_create_for_data( - bits_argb, CAIRO_FORMAT_ARGB32, w, h, - PIXMAN_FORMAT_BPP(PIXMAN_x8r8g8b8) / 8 * w); + dump_surface = cairo_image_surface_create( + CAIRO_FORMAT_ARGB32, w, h); + + bits_target = cairo_image_surface_get_data(dump_surface); + size = cairo_image_surface_get_stride(dump_surface) * h; + memcpy(bits_target, bits_argb, size); + cairo_surface_mark_dirty(dump_surface); pixman_image_unref(image_argb); @@ -1055,6 +1061,154 @@ void chamelium_assert_crc_eq_or_dump(struct chamelium *chamelium, } /** + * chamelium_assert_analogue_frame_match_or_dump: + * @chamelium: The chamelium instance the frame dump belongs to + * @frame: The chamelium frame dump to match + * @fb: pointer to an #igt_fb structure + * + * Asserts that the provided captured frame matches the reference frame from + * the framebuffer. If they do not, this saves the reference and captured frames + * to a png file. + */ +void chamelium_assert_analogue_frame_match_or_dump(struct chamelium *chamelium, + struct chamelium_port *port, + const struct chamelium_frame_dump *frame, + struct igt_fb *fb) +{ + cairo_surface_t *reference; + cairo_surface_t *capture; + igt_crc_t *reference_crc; + igt_crc_t *capture_crc; + char *reference_suffix; + char *capture_suffix; + bool match; + + /* Grab the reference frame from framebuffer */ + reference = igt_get_cairo_surface(chamelium->drm_fd, fb); + + /* Grab the captured frame from chamelium */ + capture = convert_frame_dump_argb32(frame); + + match = igt_check_analogue_frame_match(reference, capture); + if (!match && igt_frame_dump_is_enabled()) { + reference_crc = chamelium_calculate_fb_crc(chamelium->drm_fd, + fb); + capture_crc = chamelium_get_crc_for_area(chamelium, port, 0, 0, + 0, 0); + + reference_suffix = igt_crc_to_string_extended(reference_crc, + '-', 2); + capture_suffix = igt_crc_to_string_extended(capture_crc, '-', + 2); + + /* Write reference and capture frames to png */ + igt_write_compared_frames_to_png(reference, capture, + reference_suffix, + capture_suffix); + + free(reference_suffix); + free(capture_suffix); + } + + cairo_surface_destroy(capture); + + igt_assert(match); +} + + +/** + * chamelium_analogue_frame_crop: + * @chamelium: The Chamelium instance to use + * @dump: The chamelium frame dump to crop + * @width: The cropped frame width + * @height: The cropped frame height + * + * Detects the corners of a chamelium frame and crops it to the requested + * width/height. This is useful for VGA frame dumps that also contain the + * pixels dumped during the blanking intervals. + * + * The detection is done on a brightness-threshold-basis, that is adapted + * to the reference frame used by i-g-t. It may not be as relevant for other + * frames. + */ +void chamelium_crop_analogue_frame(struct chamelium_frame_dump *dump, int width, + int height) +{ + unsigned char *bgr; + unsigned char *p; + unsigned char *q; + int top, left; + int x, y, xx, yy; + int score; + + if (dump->width == width && dump->height == height) + return; + + /* Start with the most bottom-right position. */ + top = dump->height - height; + left = dump->width - width; + + igt_assert(top >= 0 && left >= 0); + + igt_debug("Cropping analogue frame from %dx%d to %dx%d\n", dump->width, + dump->height, width, height); + + /* Detect the top-left corner of the frame. */ + for (x = 0; x < dump->width; x++) { + for (y = 0; y < dump->height; y++) { + p = &dump->bgr[(x + y * dump->width) * 3]; + + /* Detect significantly bright pixels. */ + if (p[0] < 50 && p[1] < 50 && p[2] < 50) + continue; + + /* + * Make sure close-by pixels are also significantly + * bright. + */ + score = 0; + for (xx = x; xx < x + 10; xx++) { + for (yy = y; yy < y + 10; yy++) { + p = &dump->bgr[(xx + yy * dump->width) * 3]; + + if (p[0] > 50 && p[1] > 50 && p[2] > 50) + score++; + } + } + + /* Not enough pixels are significantly bright. */ + if (score < 25) + continue; + + if (x < left) + left = x; + + if (y < top) + top = y; + + if (left == x || top == y) + continue; + } + } + + igt_debug("Detected analogue frame edges at %dx%d\n", left, top); + + /* Crop the frame given the detected top-left corner. */ + bgr = malloc(width * height * 3); + + for (y = 0; y < height; y++) { + p = &dump->bgr[(left + (top + y) * dump->width) * 3]; + q = &bgr[(y * width) * 3]; + memcpy(q, p, width * 3); + } + + free(dump->bgr); + dump->width = width; + dump->height = height; + dump->bgr = bgr; +} + +/** * chamelium_get_frame_limit: * @chamelium: The Chamelium instance to use * @port: The port to check the frame limit on @@ -1480,7 +1634,7 @@ igt_constructor { /* Frame dumps can be large, so we need to be able to handle very large * responses * - * Limit here is 10MB + * Limit here is 15MB */ - xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 10485760); + xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 15728640); } diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h index 80afcafa..101e64b6 100644 --- a/lib/igt_chamelium.h +++ b/lib/igt_chamelium.h @@ -101,7 +101,6 @@ int chamelium_get_captured_frame_count(struct chamelium *chamelium); int chamelium_get_frame_limit(struct chamelium *chamelium, struct chamelium_port *port, int w, int h); - void chamelium_assert_frame_eq(const struct chamelium *chamelium, const struct chamelium_frame_dump *dump, struct igt_fb *fb); @@ -109,6 +108,12 @@ void chamelium_assert_crc_eq_or_dump(struct chamelium *chamelium, igt_crc_t *reference_crc, igt_crc_t *capture_crc, struct igt_fb *fb, int index); +void chamelium_assert_analogue_frame_match_or_dump(struct chamelium *chamelium, + struct chamelium_port *port, + const struct chamelium_frame_dump *frame, + struct igt_fb *fb); +void chamelium_crop_analogue_frame(struct chamelium_frame_dump *dump, int width, + int height); void chamelium_destroy_frame_dump(struct chamelium_frame_dump *dump); #endif /* IGT_CHAMELIUM_H */ diff --git a/lib/igt_frame.c b/lib/igt_frame.c index dc84fe01..8ca110c9 100644 --- a/lib/igt_frame.c +++ b/lib/igt_frame.c @@ -204,13 +204,13 @@ bool igt_check_analogue_frame_match(cairo_surface_t *reference, p = &capture_pixels[(x + y * w) * 4]; q = &reference_pixels[(x + y * w) * 4]; - for (i = 1; i < 4; i++) { + for (i = 0; i < 3; i++) { diff = (int) p[i] - q[i]; if (diff < 0) diff = -diff; - error_count[i-1][q[i-1]][0] += diff; - error_count[i-1][q[i-1]][1]++; + error_count[i][q[i]][0] += diff; + error_count[i][q[i]][1]++; } } } diff --git a/tests/chamelium.c b/tests/chamelium.c index 89a3bde0..baaa424b 100644 --- a/tests/chamelium.c +++ b/tests/chamelium.c @@ -358,6 +358,10 @@ enable_output(data_t *data, BROADCAST_RGB_FULL); igt_display_commit(display); + + if (chamelium_port_get_type(port) == DRM_MODE_CONNECTOR_VGA) + usleep(250000); + chamelium_port_wait_video_input_stable(data->chamelium, port, HOTPLUG_TIMEOUT); @@ -492,6 +496,56 @@ test_display_frame_dump(data_t *data, struct chamelium_port *port) } static void +test_analogue_frame_dump(data_t *data, struct chamelium_port *port) +{ + igt_display_t display; + igt_output_t *output; + igt_plane_t *primary; + struct igt_fb fb; + struct chamelium_frame_dump *frame; + drmModeModeInfo *mode; + drmModeConnector *connector; + int fb_id, i; + + output = prepare_output(data, &display, port); + connector = chamelium_port_get_connector(data->chamelium, port, false); + primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); + igt_assert(primary); + + for (i = 0; i < connector->count_modes; i++) { + mode = &connector->modes[i]; + + fb_id = igt_create_color_pattern_fb(data->drm_fd, + mode->hdisplay, mode->vdisplay, + DRM_FORMAT_XRGB8888, + LOCAL_DRM_FORMAT_MOD_NONE, + 0, 0, 0, &fb); + igt_assert(fb_id > 0); + + enable_output(data, port, output, mode, &fb); + + igt_debug("Reading frame dumps from Chamelium...\n"); + + frame = chamelium_port_dump_pixels(data->chamelium, port, 0, 0, + 0, 0); + + chamelium_crop_analogue_frame(frame, mode->hdisplay, + mode->vdisplay); + + chamelium_assert_analogue_frame_match_or_dump(data->chamelium, + port, frame, &fb); + + chamelium_destroy_frame_dump(frame); + + disable_output(data, port, output); + igt_remove_fb(data->drm_fd, &fb); + } + + drmModeFreeConnector(connector); + igt_display_fini(&display); +} + +static void test_hpd_without_ddc(data_t *data, struct chamelium_port *port) { struct udev_monitor *mon = igt_watch_hotplug(); @@ -734,6 +788,9 @@ igt_main connector_subtest("vga-hpd-without-ddc", VGA) test_hpd_without_ddc(&data, port); + + connector_subtest("vga-frame-dump", VGA) + test_analogue_frame_dump(&data, port); } igt_subtest_group { -- 2.13.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH i-g-t v2 2/2] chamelium: Add support for VGA frame comparison testing 2017-07-12 14:57 ` [PATCH i-g-t v2 2/2] chamelium: Add support for VGA " Paul Kocialkowski @ 2017-07-17 17:35 ` Lyude Paul 2017-07-19 12:31 ` Paul Kocialkowski 0 siblings, 1 reply; 13+ messages in thread From: Lyude Paul @ 2017-07-17 17:35 UTC (permalink / raw) To: Paul Kocialkowski, intel-gfx Just one change for this patch below On Wed, 2017-07-12 at 17:57 +0300, Paul Kocialkowski wrote: > This adds support for VGA frame comparison testing with the reference > generated from cairo. The retrieved frame from the chamelium is first > cropped, as it contains the blanking intervals, through a dedicated > helper. Another helper function asserts that the analogue frame > matches or dump it to png if not. > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> > --- > lib/igt_chamelium.c | 164 > ++++++++++++++++++++++++++++++++++++++++++++++++++-- > lib/igt_chamelium.h | 7 ++- > lib/igt_frame.c | 6 +- > tests/chamelium.c | 57 ++++++++++++++++++ > 4 files changed, 225 insertions(+), 9 deletions(-) > > diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c > index df49936b..8701192e 100644 > --- a/lib/igt_chamelium.c > +++ b/lib/igt_chamelium.c > @@ -938,6 +938,8 @@ static cairo_surface_t > *convert_frame_dump_argb32(const struct chamelium_frame_d > int w = dump->width, h = dump->height; > uint32_t *bits_bgr = (uint32_t *) dump->bgr; > unsigned char *bits_argb; > + unsigned char *bits_target; > + int size; > > image_bgr = pixman_image_create_bits( > PIXMAN_b8g8r8, w, h, bits_bgr, > @@ -947,9 +949,13 @@ static cairo_surface_t > *convert_frame_dump_argb32(const struct chamelium_frame_d > > bits_argb = (unsigned char *) > pixman_image_get_data(image_argb); > > - dump_surface = cairo_image_surface_create_for_data( > - bits_argb, CAIRO_FORMAT_ARGB32, w, h, > - PIXMAN_FORMAT_BPP(PIXMAN_x8r8g8b8) / 8 * w); > + dump_surface = cairo_image_surface_create( > + CAIRO_FORMAT_ARGB32, w, h); > + > + bits_target = cairo_image_surface_get_data(dump_surface); > + size = cairo_image_surface_get_stride(dump_surface) * h; > + memcpy(bits_target, bits_argb, size); > + cairo_surface_mark_dirty(dump_surface); > > pixman_image_unref(image_argb); > > @@ -1055,6 +1061,154 @@ void chamelium_assert_crc_eq_or_dump(struct > chamelium *chamelium, > } > > /** > + * chamelium_assert_analogue_frame_match_or_dump: > + * @chamelium: The chamelium instance the frame dump belongs to > + * @frame: The chamelium frame dump to match > + * @fb: pointer to an #igt_fb structure > + * > + * Asserts that the provided captured frame matches the reference > frame from > + * the framebuffer. If they do not, this saves the reference and > captured frames > + * to a png file. > + */ > +void chamelium_assert_analogue_frame_match_or_dump(struct chamelium > *chamelium, > + struct > chamelium_port *port, > + const struct > chamelium_frame_dump *frame, > + struct igt_fb *fb) > +{ > + cairo_surface_t *reference; > + cairo_surface_t *capture; > + igt_crc_t *reference_crc; > + igt_crc_t *capture_crc; > + char *reference_suffix; > + char *capture_suffix; > + bool match; > + > + /* Grab the reference frame from framebuffer */ > + reference = igt_get_cairo_surface(chamelium->drm_fd, fb); > + > + /* Grab the captured frame from chamelium */ > + capture = convert_frame_dump_argb32(frame); > + > + match = igt_check_analogue_frame_match(reference, capture); > + if (!match && igt_frame_dump_is_enabled()) { > + reference_crc = chamelium_calculate_fb_crc(chamelium- > >drm_fd, > + fb); > + capture_crc = chamelium_get_crc_for_area(chamelium, > port, 0, 0, > + 0, 0); > + > + reference_suffix = > igt_crc_to_string_extended(reference_crc, > + '-', > 2); > + capture_suffix = > igt_crc_to_string_extended(capture_crc, '-', > + 2); > + > + /* Write reference and capture frames to png */ > + igt_write_compared_frames_to_png(reference, capture, > + reference_suffix, > + capture_suffix); > + > + free(reference_suffix); > + free(capture_suffix); > + } > + > + cairo_surface_destroy(capture); > + > + igt_assert(match); > +} > + > + > +/** > + * chamelium_analogue_frame_crop: > + * @chamelium: The Chamelium instance to use > + * @dump: The chamelium frame dump to crop > + * @width: The cropped frame width > + * @height: The cropped frame height > + * > + * Detects the corners of a chamelium frame and crops it to the > requested > + * width/height. This is useful for VGA frame dumps that also > contain the > + * pixels dumped during the blanking intervals. > + * > + * The detection is done on a brightness-threshold-basis, that is > adapted > + * to the reference frame used by i-g-t. It may not be as relevant > for other > + * frames. > + */ > +void chamelium_crop_analogue_frame(struct chamelium_frame_dump > *dump, int width, > + int height) > +{ > + unsigned char *bgr; > + unsigned char *p; > + unsigned char *q; > + int top, left; > + int x, y, xx, yy; > + int score; > + > + if (dump->width == width && dump->height == height) > + return; > + > + /* Start with the most bottom-right position. */ > + top = dump->height - height; > + left = dump->width - width; > + > + igt_assert(top >= 0 && left >= 0); > + > + igt_debug("Cropping analogue frame from %dx%d to %dx%d\n", > dump->width, > + dump->height, width, height); > + > + /* Detect the top-left corner of the frame. */ > + for (x = 0; x < dump->width; x++) { > + for (y = 0; y < dump->height; y++) { > + p = &dump->bgr[(x + y * dump->width) * 3]; > + > + /* Detect significantly bright pixels. */ > + if (p[0] < 50 && p[1] < 50 && p[2] < 50) > + continue; > + > + /* > + * Make sure close-by pixels are also > significantly > + * bright. > + */ > + score = 0; > + for (xx = x; xx < x + 10; xx++) { > + for (yy = y; yy < y + 10; yy++) { > + p = &dump->bgr[(xx + yy * > dump->width) * 3]; > + > + if (p[0] > 50 && p[1] > 50 && > p[2] > 50) > + score++; > + } > + } > + > + /* Not enough pixels are significantly > bright. */ > + if (score < 25) > + continue; > + > + if (x < left) > + left = x; > + > + if (y < top) > + top = y; > + > + if (left == x || top == y) > + continue; > + } > + } > + > + igt_debug("Detected analogue frame edges at %dx%d\n", left, > top); > + > + /* Crop the frame given the detected top-left corner. */ > + bgr = malloc(width * height * 3); > + > + for (y = 0; y < height; y++) { > + p = &dump->bgr[(left + (top + y) * dump->width) * 3]; > + q = &bgr[(y * width) * 3]; > + memcpy(q, p, width * 3); > + } > + > + free(dump->bgr); > + dump->width = width; > + dump->height = height; > + dump->bgr = bgr; > +} > + > +/** > * chamelium_get_frame_limit: > * @chamelium: The Chamelium instance to use > * @port: The port to check the frame limit on > @@ -1480,7 +1634,7 @@ igt_constructor { > /* Frame dumps can be large, so we need to be able to handle > very large > * responses > * > - * Limit here is 10MB > + * Limit here is 15MB > */ > - xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 10485760); > + xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 15728640); > } > diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h > index 80afcafa..101e64b6 100644 > --- a/lib/igt_chamelium.h > +++ b/lib/igt_chamelium.h > @@ -101,7 +101,6 @@ int chamelium_get_captured_frame_count(struct > chamelium *chamelium); > int chamelium_get_frame_limit(struct chamelium *chamelium, > struct chamelium_port *port, > int w, int h); > - > void chamelium_assert_frame_eq(const struct chamelium *chamelium, > const struct chamelium_frame_dump > *dump, > struct igt_fb *fb); > @@ -109,6 +108,12 @@ void chamelium_assert_crc_eq_or_dump(struct > chamelium *chamelium, > igt_crc_t *reference_crc, > igt_crc_t *capture_crc, struct > igt_fb *fb, > int index); > +void chamelium_assert_analogue_frame_match_or_dump(struct chamelium > *chamelium, > + struct > chamelium_port *port, > + const struct > chamelium_frame_dump *frame, > + struct igt_fb > *fb); > +void chamelium_crop_analogue_frame(struct chamelium_frame_dump > *dump, int width, > + int height); > void chamelium_destroy_frame_dump(struct chamelium_frame_dump > *dump); > > #endif /* IGT_CHAMELIUM_H */ > diff --git a/lib/igt_frame.c b/lib/igt_frame.c > index dc84fe01..8ca110c9 100644 > --- a/lib/igt_frame.c > +++ b/lib/igt_frame.c > @@ -204,13 +204,13 @@ bool > igt_check_analogue_frame_match(cairo_surface_t *reference, > p = &capture_pixels[(x + y * w) * 4]; > q = &reference_pixels[(x + y * w) * 4]; > > - for (i = 1; i < 4; i++) { > + for (i = 0; i < 3; i++) { > diff = (int) p[i] - q[i]; > if (diff < 0) > diff = -diff; > > - error_count[i-1][q[i-1]][0] += diff; > - error_count[i-1][q[i-1]][1]++; > + error_count[i][q[i]][0] += diff; > + error_count[i][q[i]][1]++; Am I missing something? This change seems like it should just be part of patch #1 instead of being done afterwards in patch #2. > } > } > } > diff --git a/tests/chamelium.c b/tests/chamelium.c > index 89a3bde0..baaa424b 100644 > --- a/tests/chamelium.c > +++ b/tests/chamelium.c > @@ -358,6 +358,10 @@ enable_output(data_t *data, > BROADCAST_RGB_FULL); > > igt_display_commit(display); > + > + if (chamelium_port_get_type(port) == DRM_MODE_CONNECTOR_VGA) > + usleep(250000); > + > chamelium_port_wait_video_input_stable(data->chamelium, port, > HOTPLUG_TIMEOUT); > > @@ -492,6 +496,56 @@ test_display_frame_dump(data_t *data, struct > chamelium_port *port) > } > > static void > +test_analogue_frame_dump(data_t *data, struct chamelium_port *port) > +{ > + igt_display_t display; > + igt_output_t *output; > + igt_plane_t *primary; > + struct igt_fb fb; > + struct chamelium_frame_dump *frame; > + drmModeModeInfo *mode; > + drmModeConnector *connector; > + int fb_id, i; > + > + output = prepare_output(data, &display, port); > + connector = chamelium_port_get_connector(data->chamelium, > port, false); > + primary = igt_output_get_plane_type(output, > DRM_PLANE_TYPE_PRIMARY); > + igt_assert(primary); > + > + for (i = 0; i < connector->count_modes; i++) { > + mode = &connector->modes[i]; > + > + fb_id = igt_create_color_pattern_fb(data->drm_fd, > + mode->hdisplay, > mode->vdisplay, > + DRM_FORMAT_XRGB88 > 88, > + LOCAL_DRM_FORMAT_ > MOD_NONE, > + 0, 0, 0, &fb); > + igt_assert(fb_id > 0); > + > + enable_output(data, port, output, mode, &fb); > + > + igt_debug("Reading frame dumps from Chamelium...\n"); > + > + frame = chamelium_port_dump_pixels(data->chamelium, > port, 0, 0, > + 0, 0); > + > + chamelium_crop_analogue_frame(frame, mode->hdisplay, > + mode->vdisplay); > + > + chamelium_assert_analogue_frame_match_or_dump(data- > >chamelium, > + port, > frame, &fb); > + > + chamelium_destroy_frame_dump(frame); > + > + disable_output(data, port, output); > + igt_remove_fb(data->drm_fd, &fb); > + } > + > + drmModeFreeConnector(connector); > + igt_display_fini(&display); > +} > + > +static void > test_hpd_without_ddc(data_t *data, struct chamelium_port *port) > { > struct udev_monitor *mon = igt_watch_hotplug(); > @@ -734,6 +788,9 @@ igt_main > > connector_subtest("vga-hpd-without-ddc", VGA) > test_hpd_without_ddc(&data, port); > + > + connector_subtest("vga-frame-dump", VGA) > + test_analogue_frame_dump(&data, port); > } > > igt_subtest_group { > -- > 2.13.2 > _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH i-g-t v2 2/2] chamelium: Add support for VGA frame comparison testing 2017-07-17 17:35 ` Lyude Paul @ 2017-07-19 12:31 ` Paul Kocialkowski 0 siblings, 0 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-19 12:31 UTC (permalink / raw) To: Lyude Paul, intel-gfx On Mon, 2017-07-17 at 13:35 -0400, Lyude Paul wrote: > Just one change for this patch below > > On Wed, 2017-07-12 at 17:57 +0300, Paul Kocialkowski wrote: > > This adds support for VGA frame comparison testing with the > > reference > > generated from cairo. The retrieved frame from the chamelium is > > first > > cropped, as it contains the blanking intervals, through a dedicated > > helper. Another helper function asserts that the analogue frame > > matches or dump it to png if not. > > > > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> > > --- > > lib/igt_chamelium.c | 164 > > ++++++++++++++++++++++++++++++++++++++++++++++++++-- > > lib/igt_chamelium.h | 7 ++- > > lib/igt_frame.c | 6 +- > > tests/chamelium.c | 57 ++++++++++++++++++ > > 4 files changed, 225 insertions(+), 9 deletions(-) > > > > diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c > > index df49936b..8701192e 100644 > > --- a/lib/igt_chamelium.c > > +++ b/lib/igt_chamelium.c > > @@ -938,6 +938,8 @@ static cairo_surface_t > > *convert_frame_dump_argb32(const struct chamelium_frame_d > > int w = dump->width, h = dump->height; > > uint32_t *bits_bgr = (uint32_t *) dump->bgr; > > unsigned char *bits_argb; > > + unsigned char *bits_target; > > + int size; > > > > image_bgr = pixman_image_create_bits( > > PIXMAN_b8g8r8, w, h, bits_bgr, > > @@ -947,9 +949,13 @@ static cairo_surface_t > > *convert_frame_dump_argb32(const struct chamelium_frame_d > > > > bits_argb = (unsigned char *) > > pixman_image_get_data(image_argb); > > > > - dump_surface = cairo_image_surface_create_for_data( > > - bits_argb, CAIRO_FORMAT_ARGB32, w, h, > > - PIXMAN_FORMAT_BPP(PIXMAN_x8r8g8b8) / 8 * w); > > + dump_surface = cairo_image_surface_create( > > + CAIRO_FORMAT_ARGB32, w, h); > > + > > + bits_target = cairo_image_surface_get_data(dump_surface); > > + size = cairo_image_surface_get_stride(dump_surface) * h; > > + memcpy(bits_target, bits_argb, size); > > + cairo_surface_mark_dirty(dump_surface); > > > > pixman_image_unref(image_argb); > > > > @@ -1055,6 +1061,154 @@ void chamelium_assert_crc_eq_or_dump(struct > > chamelium *chamelium, > > } > > > > /** > > + * chamelium_assert_analogue_frame_match_or_dump: > > + * @chamelium: The chamelium instance the frame dump belongs to > > + * @frame: The chamelium frame dump to match > > + * @fb: pointer to an #igt_fb structure > > + * > > + * Asserts that the provided captured frame matches the reference > > frame from > > + * the framebuffer. If they do not, this saves the reference and > > captured frames > > + * to a png file. > > + */ > > +void chamelium_assert_analogue_frame_match_or_dump(struct chamelium > > *chamelium, > > + struct > > chamelium_port *port, > > + const struct > > chamelium_frame_dump *frame, > > + struct igt_fb > > *fb) > > +{ > > + cairo_surface_t *reference; > > + cairo_surface_t *capture; > > + igt_crc_t *reference_crc; > > + igt_crc_t *capture_crc; > > + char *reference_suffix; > > + char *capture_suffix; > > + bool match; > > + > > + /* Grab the reference frame from framebuffer */ > > + reference = igt_get_cairo_surface(chamelium->drm_fd, fb); > > + > > + /* Grab the captured frame from chamelium */ > > + capture = convert_frame_dump_argb32(frame); > > + > > + match = igt_check_analogue_frame_match(reference, capture); > > + if (!match && igt_frame_dump_is_enabled()) { > > + reference_crc = > > chamelium_calculate_fb_crc(chamelium- > > > drm_fd, > > > > + fb); > > + capture_crc = chamelium_get_crc_for_area(chamelium, > > port, 0, 0, > > + 0, 0); > > + > > + reference_suffix = > > igt_crc_to_string_extended(reference_crc, > > + '-', > > 2); > > + capture_suffix = > > igt_crc_to_string_extended(capture_crc, '-', > > + 2); > > + > > + /* Write reference and capture frames to png */ > > + igt_write_compared_frames_to_png(reference, capture, > > + reference_suffix, > > + capture_suffix); > > + > > + free(reference_suffix); > > + free(capture_suffix); > > + } > > + > > + cairo_surface_destroy(capture); > > + > > + igt_assert(match); > > +} > > + > > + > > +/** > > + * chamelium_analogue_frame_crop: > > + * @chamelium: The Chamelium instance to use > > + * @dump: The chamelium frame dump to crop > > + * @width: The cropped frame width > > + * @height: The cropped frame height > > + * > > + * Detects the corners of a chamelium frame and crops it to the > > requested > > + * width/height. This is useful for VGA frame dumps that also > > contain the > > + * pixels dumped during the blanking intervals. > > + * > > + * The detection is done on a brightness-threshold-basis, that is > > adapted > > + * to the reference frame used by i-g-t. It may not be as relevant > > for other > > + * frames. > > + */ > > +void chamelium_crop_analogue_frame(struct chamelium_frame_dump > > *dump, int width, > > + int height) > > +{ > > + unsigned char *bgr; > > + unsigned char *p; > > + unsigned char *q; > > + int top, left; > > + int x, y, xx, yy; > > + int score; > > + > > + if (dump->width == width && dump->height == height) > > + return; > > + > > + /* Start with the most bottom-right position. */ > > + top = dump->height - height; > > + left = dump->width - width; > > + > > + igt_assert(top >= 0 && left >= 0); > > + > > + igt_debug("Cropping analogue frame from %dx%d to %dx%d\n", > > dump->width, > > + dump->height, width, height); > > + > > + /* Detect the top-left corner of the frame. */ > > + for (x = 0; x < dump->width; x++) { > > + for (y = 0; y < dump->height; y++) { > > + p = &dump->bgr[(x + y * dump->width) * 3]; > > + > > + /* Detect significantly bright pixels. */ > > + if (p[0] < 50 && p[1] < 50 && p[2] < 50) > > + continue; > > + > > + /* > > + * Make sure close-by pixels are also > > significantly > > + * bright. > > + */ > > + score = 0; > > + for (xx = x; xx < x + 10; xx++) { > > + for (yy = y; yy < y + 10; yy++) { > > + p = &dump->bgr[(xx + yy * > > dump->width) * 3]; > > + > > + if (p[0] > 50 && p[1] > 50 > > && > > p[2] > 50) > > + score++; > > + } > > + } > > + > > + /* Not enough pixels are significantly > > bright. */ > > + if (score < 25) > > + continue; > > + > > + if (x < left) > > + left = x; > > + > > + if (y < top) > > + top = y; > > + > > + if (left == x || top == y) > > + continue; > > + } > > + } > > + > > + igt_debug("Detected analogue frame edges at %dx%d\n", left, > > top); > > + > > + /* Crop the frame given the detected top-left corner. */ > > + bgr = malloc(width * height * 3); > > + > > + for (y = 0; y < height; y++) { > > + p = &dump->bgr[(left + (top + y) * dump->width) * > > 3]; > > + q = &bgr[(y * width) * 3]; > > + memcpy(q, p, width * 3); > > + } > > + > > + free(dump->bgr); > > + dump->width = width; > > + dump->height = height; > > + dump->bgr = bgr; > > +} > > + > > +/** > > * chamelium_get_frame_limit: > > * @chamelium: The Chamelium instance to use > > * @port: The port to check the frame limit on > > @@ -1480,7 +1634,7 @@ igt_constructor { > > /* Frame dumps can be large, so we need to be able to handle > > very large > > * responses > > * > > - * Limit here is 10MB > > + * Limit here is 15MB > > */ > > - xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 10485760); > > + xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 15728640); > > } > > diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h > > index 80afcafa..101e64b6 100644 > > --- a/lib/igt_chamelium.h > > +++ b/lib/igt_chamelium.h > > @@ -101,7 +101,6 @@ int chamelium_get_captured_frame_count(struct > > chamelium *chamelium); > > int chamelium_get_frame_limit(struct chamelium *chamelium, > > struct chamelium_port *port, > > int w, int h); > > - > > void chamelium_assert_frame_eq(const struct chamelium *chamelium, > > const struct chamelium_frame_dump > > *dump, > > struct igt_fb *fb); > > @@ -109,6 +108,12 @@ void chamelium_assert_crc_eq_or_dump(struct > > chamelium *chamelium, > > igt_crc_t *reference_crc, > > igt_crc_t *capture_crc, struct > > igt_fb *fb, > > int index); > > +void chamelium_assert_analogue_frame_match_or_dump(struct chamelium > > *chamelium, > > + struct > > chamelium_port *port, > > + const struct > > chamelium_frame_dump *frame, > > + struct igt_fb > > *fb); > > +void chamelium_crop_analogue_frame(struct chamelium_frame_dump > > *dump, int width, > > + int height); > > void chamelium_destroy_frame_dump(struct chamelium_frame_dump > > *dump); > > > > #endif /* IGT_CHAMELIUM_H */ > > diff --git a/lib/igt_frame.c b/lib/igt_frame.c > > index dc84fe01..8ca110c9 100644 > > --- a/lib/igt_frame.c > > +++ b/lib/igt_frame.c > > @@ -204,13 +204,13 @@ bool > > igt_check_analogue_frame_match(cairo_surface_t *reference, > > p = &capture_pixels[(x + y * w) * 4]; > > q = &reference_pixels[(x + y * w) * 4]; > > > > - for (i = 1; i < 4; i++) { > > + for (i = 0; i < 3; i++) { > > diff = (int) p[i] - q[i]; > > if (diff < 0) > > diff = -diff; > > > > - error_count[i-1][q[i-1]][0] += diff; > > - error_count[i-1][q[i-1]][1]++; > > + error_count[i][q[i]][0] += diff; > > + error_count[i][q[i]][1]++; > > Am I missing something? This change seems like it should just be part > of patch #1 instead of being done afterwards in patch #2. Woops, looks like I messed this one up when crafting the new version. Thanks for catching it! > > } > > } > > } > > diff --git a/tests/chamelium.c b/tests/chamelium.c > > index 89a3bde0..baaa424b 100644 > > --- a/tests/chamelium.c > > +++ b/tests/chamelium.c > > @@ -358,6 +358,10 @@ enable_output(data_t *data, > > BROADCAST_RGB_FULL); > > > > igt_display_commit(display); > > + > > + if (chamelium_port_get_type(port) == DRM_MODE_CONNECTOR_VGA) > > + usleep(250000); > > + > > chamelium_port_wait_video_input_stable(data->chamelium, > > port, > > HOTPLUG_TIMEOUT); > > > > @@ -492,6 +496,56 @@ test_display_frame_dump(data_t *data, struct > > chamelium_port *port) > > } > > > > static void > > +test_analogue_frame_dump(data_t *data, struct chamelium_port *port) > > +{ > > + igt_display_t display; > > + igt_output_t *output; > > + igt_plane_t *primary; > > + struct igt_fb fb; > > + struct chamelium_frame_dump *frame; > > + drmModeModeInfo *mode; > > + drmModeConnector *connector; > > + int fb_id, i; > > + > > + output = prepare_output(data, &display, port); > > + connector = chamelium_port_get_connector(data->chamelium, > > port, false); > > + primary = igt_output_get_plane_type(output, > > DRM_PLANE_TYPE_PRIMARY); > > + igt_assert(primary); > > + > > + for (i = 0; i < connector->count_modes; i++) { > > + mode = &connector->modes[i]; > > + > > + fb_id = igt_create_color_pattern_fb(data->drm_fd, > > + mode->hdisplay, > > mode->vdisplay, > > + DRM_FORMAT_XRGB8 > > 8 > > 88, > > + LOCAL_DRM_FORMAT > > _ > > MOD_NONE, > > + 0, 0, 0, &fb); > > + igt_assert(fb_id > 0); > > + > > + enable_output(data, port, output, mode, &fb); > > + > > + igt_debug("Reading frame dumps from > > Chamelium...\n"); > > + > > + frame = chamelium_port_dump_pixels(data->chamelium, > > port, 0, 0, > > + 0, 0); > > + > > + chamelium_crop_analogue_frame(frame, mode->hdisplay, > > + mode->vdisplay); > > + > > + chamelium_assert_analogue_frame_match_or_dump(data- > > > chamelium, > > > > + port, > > frame, &fb); > > + > > + chamelium_destroy_frame_dump(frame); > > + > > + disable_output(data, port, output); > > + igt_remove_fb(data->drm_fd, &fb); > > + } > > + > > + drmModeFreeConnector(connector); > > + igt_display_fini(&display); > > +} > > + > > +static void > > test_hpd_without_ddc(data_t *data, struct chamelium_port *port) > > { > > struct udev_monitor *mon = igt_watch_hotplug(); > > @@ -734,6 +788,9 @@ igt_main > > > > connector_subtest("vga-hpd-without-ddc", VGA) > > test_hpd_without_ddc(&data, port); > > + > > + connector_subtest("vga-frame-dump", VGA) > > + test_analogue_frame_dump(&data, port); > > } > > > > igt_subtest_group { > > -- > > 2.13.2 > > -- Paul Kocialkowski <paul.kocialkowski@linux.intel.com> Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo, Finland _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing 2017-07-06 13:26 [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing Paul Kocialkowski 2017-07-06 13:26 ` [PATCH i-g-t] " Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 0/2] Analogue/VGA frame comparison support Paul Kocialkowski @ 2017-07-17 17:38 ` Lyude Paul 2017-07-19 13:48 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 3 siblings, 0 replies; 13+ messages in thread From: Lyude Paul @ 2017-07-17 17:38 UTC (permalink / raw) To: Paul Kocialkowski, intel-gfx Hey! The only changes I need on this is the small fix I mentioned for patch #2, and a nitpick regarding the spellings being used for the functions. I wasn't sure whether or not we should be using analog or analogue (us spelling vs. everyone else) but apparently the answer is to use the US spellings: 13:15 <Lyude> hm, weird question: what nationality's english spellings do we actually prefer for igt functions? like, would it be igt_check_analogue_frame_match() or igt_check_analog_frame_match(), or does no one really care? 13:16 → DottorLeo (~leonardo@net-93-151-90-55.cust.dsl.teletu.it) has joined #intel-gfx 13:18 <Lyude> mupuf: ^ ? 13:19 <mupuf> oh dear 13:19 <mupuf> danvet: ^ 13:20 <danvet> I think personally I do us spelling in functions, and something more british in comments 13:20 <dmlloyd> "nondigital" 13:20 <Lyude> hehe 13:20 <Lyude> alright gotcha, thanks! On Thu, 2017-07-06 at 16:26 +0300, Paul Kocialkowski wrote: > I am only sending this for comments at this point, since this will > need > to be reworked according to the changes made on previous series > still > under review. Especially, it will benefit from making the frame save > mechanism common. > _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support 2017-07-06 13:26 [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing Paul Kocialkowski ` (2 preceding siblings ...) 2017-07-17 17:38 ` [PATCH i-g-t 0/1] " Lyude Paul @ 2017-07-19 13:48 ` Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 1/2] lib/igt_frame: Add support for analog frame comparison testing Paul Kocialkowski ` (2 more replies) 3 siblings, 3 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-19 13:48 UTC (permalink / raw) To: intel-gfx Changes since v2: * Changed analogue in favor of analog * Integrated analog frame match fixup in the original commit * Rebased on top of the new revisions of the series this depends on Changes since v1: * Split analogue frame comparison to igt_frame, using cairo surfaces * Added a chamelium helper for analogue frame checking and frame dumping _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
* [PATCH i-g-t v3 1/2] lib/igt_frame: Add support for analog frame comparison testing 2017-07-19 13:48 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Paul Kocialkowski @ 2017-07-19 13:48 ` Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 2/2] chamelium: Add support for VGA " Paul Kocialkowski 2017-07-19 17:50 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Lyude Paul 2 siblings, 0 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-19 13:48 UTC (permalink / raw) To: intel-gfx This adds support for analog frame comparison check, as used in VGA. Since VGA uses a DAC-ADC chain, its data cannot be expected to be pixel perfect. Thus, it is impossible to uses a CRC check and full frames have to be analyzed instead. Such an analysis is implemented, based on both an absolute error threshold and a correlation with the expected error trend for a DAC-ADC chain. It was tested with a couple encoders and provides reliable error detection with few false positives. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> --- configure.ac | 1 + lib/Makefile.am | 2 + lib/igt_frame.c | 131 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/igt_frame.h | 2 + 4 files changed, 136 insertions(+) diff --git a/configure.ac b/configure.ac index 5b41f333..db0015e5 100644 --- a/configure.ac +++ b/configure.ac @@ -178,6 +178,7 @@ if test x"$udev" = xyes; then AC_DEFINE(HAVE_UDEV,1,[Enable udev-based monitor hotplug detection]) fi PKG_CHECK_MODULES(GLIB, glib-2.0) +PKG_CHECK_MODULES(GSL, gsl) # for chamelium AC_ARG_ENABLE(chamelium, AS_HELP_STRING([--disable-chamelium], diff --git a/lib/Makefile.am b/lib/Makefile.am index d4f41128..fb922ced 100644 --- a/lib/Makefile.am +++ b/lib/Makefile.am @@ -35,6 +35,7 @@ AM_CFLAGS = \ $(DRM_CFLAGS) \ $(PCIACCESS_CFLAGS) \ $(LIBUNWIND_CFLAGS) \ + $(GSL_CFLAGS) \ $(KMOD_CFLAGS) \ $(PROCPS_CFLAGS) \ $(DEBUG_CFLAGS) \ @@ -54,6 +55,7 @@ libintel_tools_la_LIBADD = \ $(DRM_LIBS) \ $(PCIACCESS_LIBS) \ $(PROCPS_LIBS) \ + $(GSL_LIBS) \ $(KMOD_LIBS) \ $(CAIRO_LIBS) \ $(LIBUDEV_LIBS) \ diff --git a/lib/igt_frame.c b/lib/igt_frame.c index dfafe53d..222a45f8 100644 --- a/lib/igt_frame.c +++ b/lib/igt_frame.c @@ -29,6 +29,8 @@ #include <fcntl.h> #include <pixman.h> #include <cairo.h> +#include <gsl/gsl_statistics_double.h> +#include <gsl/gsl_fit.h> #include "igt.h" @@ -135,3 +137,132 @@ void igt_write_compared_frames_to_png(cairo_surface_t *reference, close(fd); } + +/** + * igt_check_analog_frame_match: + * @reference: The reference cairo surface + * @capture: The captured cairo surface + * + * Checks that the analog image contained in the chamelium frame dump matches + * the given framebuffer. + * + * In order to determine whether the frame matches the reference, the following + * reasoning is implemented: + * 1. The absolute error for each color value of the reference is collected. + * 2. The average absolute error is calculated for each color value of the + * reference and must not go above 60 (23.5 % of the total range). + * 3. A linear fit for the average absolute error from the pixel value is + * calculated, as a DAC-ADC chain is expected to have a linear error curve. + * 4. The linear fit is correlated with the actual average absolute error for + * the frame and the correlation coefficient is checked to be > 0.985, + * indicating a match with the expected error trend. + * + * Most errors (e.g. due to scaling, rotation, color space, etc) can be + * reliably detected this way, with a minimized number of false-positives. + * However, the brightest values (250 and up) are ignored as the error trend + * is often not linear there in practice due to clamping. + * + * Returns: a boolean indicating whether the frames match + */ + +bool igt_check_analog_frame_match(cairo_surface_t *reference, + cairo_surface_t *capture) +{ + pixman_image_t *reference_src, *capture_src; + int w, h; + int error_count[3][256][2] = { 0 }; + double error_average[4][250]; + double error_trend[250]; + double c0, c1, cov00, cov01, cov11, sumsq; + double correlation; + unsigned char *reference_pixels, *capture_pixels; + unsigned char *p; + unsigned char *q; + bool match = true; + int diff; + int x, y; + int i, j; + + w = cairo_image_surface_get_width(reference); + h = cairo_image_surface_get_height(reference); + + reference_src = pixman_image_create_bits( + PIXMAN_x8r8g8b8, w, h, + (void*)cairo_image_surface_get_data(reference), + cairo_image_surface_get_stride(reference)); + reference_pixels = (unsigned char *) pixman_image_get_data(reference_src); + + capture_src = pixman_image_create_bits( + PIXMAN_x8r8g8b8, w, h, + (void*)cairo_image_surface_get_data(capture), + cairo_image_surface_get_stride(capture)); + capture_pixels = (unsigned char *) pixman_image_get_data(capture_src); + + /* Collect the absolute error for each color value */ + for (x = 0; x < w; x++) { + for (y = 0; y < h; y++) { + p = &capture_pixels[(x + y * w) * 4]; + q = &reference_pixels[(x + y * w) * 4]; + + for (i = 0; i < 3; i++) { + diff = (int) p[i] - q[i]; + if (diff < 0) + diff = -diff; + + error_count[i][q[i]][0] += diff; + error_count[i][q[i]][1]++; + } + } + } + + /* Calculate the average absolute error for each color value */ + for (i = 0; i < 250; i++) { + error_average[0][i] = i; + + for (j = 1; j < 4; j++) { + error_average[j][i] = (double) error_count[j-1][i][0] / + error_count[j-1][i][1]; + + if (error_average[j][i] > 60) { + igt_warn("Error average too high (%f)\n", + error_average[j][i]); + + match = false; + goto complete; + } + } + } + + /* + * Calculate error trend from linear fit. + * A DAC-ADC chain is expected to have a linear absolute error on + * most of its range + */ + for (i = 1; i < 4; i++) { + gsl_fit_linear((const double *) &error_average[0], 1, + (const double *) &error_average[i], 1, 250, + &c0, &c1, &cov00, &cov01, &cov11, &sumsq); + + for (j = 0; j < 250; j++) + error_trend[j] = c0 + j * c1; + + correlation = gsl_stats_correlation((const double *) &error_trend, + 1, + (const double *) &error_average[i], + 1, 250); + + if (correlation < 0.985) { + igt_warn("Error with reference not correlated (%f)\n", + correlation); + + match = false; + goto complete; + } + } + +complete: + pixman_image_unref(reference_src); + pixman_image_unref(capture_src); + + return match; +} diff --git a/lib/igt_frame.h b/lib/igt_frame.h index ec6a1643..1d9bbf6a 100644 --- a/lib/igt_frame.h +++ b/lib/igt_frame.h @@ -39,5 +39,7 @@ void igt_write_compared_frames_to_png(cairo_surface_t *reference, cairo_surface_t *capture, const char *reference_suffix, const char *capture_suffix); +bool igt_check_analog_frame_match(cairo_surface_t *reference, + cairo_surface_t *capture); #endif -- 2.13.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply related [flat|nested] 13+ messages in thread
* [PATCH i-g-t v3 2/2] chamelium: Add support for VGA frame comparison testing 2017-07-19 13:48 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 1/2] lib/igt_frame: Add support for analog frame comparison testing Paul Kocialkowski @ 2017-07-19 13:48 ` Paul Kocialkowski 2017-07-19 17:50 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Lyude Paul 2 siblings, 0 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-19 13:48 UTC (permalink / raw) To: intel-gfx This adds support for VGA frame comparison testing with the reference generated from cairo. The retrieved frame from the chamelium is first cropped, as it contains the blanking intervals, through a dedicated helper. Another helper function asserts that the analog frame matches or dump it to png if not. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> --- lib/igt_chamelium.c | 164 ++++++++++++++++++++++++++++++++++++++++++++++++++-- lib/igt_chamelium.h | 7 ++- tests/chamelium.c | 57 ++++++++++++++++++ 3 files changed, 222 insertions(+), 6 deletions(-) diff --git a/lib/igt_chamelium.c b/lib/igt_chamelium.c index 348d2176..dcd8855f 100644 --- a/lib/igt_chamelium.c +++ b/lib/igt_chamelium.c @@ -937,6 +937,8 @@ static cairo_surface_t *convert_frame_dump_argb32(const struct chamelium_frame_d int w = dump->width, h = dump->height; uint32_t *bits_bgr = (uint32_t *) dump->bgr; unsigned char *bits_argb; + unsigned char *bits_target; + int size; image_bgr = pixman_image_create_bits( PIXMAN_b8g8r8, w, h, bits_bgr, @@ -946,9 +948,13 @@ static cairo_surface_t *convert_frame_dump_argb32(const struct chamelium_frame_d bits_argb = (unsigned char *) pixman_image_get_data(image_argb); - dump_surface = cairo_image_surface_create_for_data( - bits_argb, CAIRO_FORMAT_ARGB32, w, h, - PIXMAN_FORMAT_BPP(PIXMAN_x8r8g8b8) / 8 * w); + dump_surface = cairo_image_surface_create( + CAIRO_FORMAT_ARGB32, w, h); + + bits_target = cairo_image_surface_get_data(dump_surface); + size = cairo_image_surface_get_stride(dump_surface) * h; + memcpy(bits_target, bits_argb, size); + cairo_surface_mark_dirty(dump_surface); pixman_image_unref(image_argb); @@ -1054,6 +1060,154 @@ void chamelium_assert_crc_eq_or_dump(struct chamelium *chamelium, } /** + * chamelium_assert_analog_frame_match_or_dump: + * @chamelium: The chamelium instance the frame dump belongs to + * @frame: The chamelium frame dump to match + * @fb: pointer to an #igt_fb structure + * + * Asserts that the provided captured frame matches the reference frame from + * the framebuffer. If they do not, this saves the reference and captured frames + * to a png file. + */ +void chamelium_assert_analog_frame_match_or_dump(struct chamelium *chamelium, + struct chamelium_port *port, + const struct chamelium_frame_dump *frame, + struct igt_fb *fb) +{ + cairo_surface_t *reference; + cairo_surface_t *capture; + igt_crc_t *reference_crc; + igt_crc_t *capture_crc; + char *reference_suffix; + char *capture_suffix; + bool match; + + /* Grab the reference frame from framebuffer */ + reference = igt_get_cairo_surface(chamelium->drm_fd, fb); + + /* Grab the captured frame from chamelium */ + capture = convert_frame_dump_argb32(frame); + + match = igt_check_analog_frame_match(reference, capture); + if (!match && igt_frame_dump_is_enabled()) { + reference_crc = chamelium_calculate_fb_crc(chamelium->drm_fd, + fb); + capture_crc = chamelium_get_crc_for_area(chamelium, port, 0, 0, + 0, 0); + + reference_suffix = igt_crc_to_string_extended(reference_crc, + '-', 2); + capture_suffix = igt_crc_to_string_extended(capture_crc, '-', + 2); + + /* Write reference and capture frames to png */ + igt_write_compared_frames_to_png(reference, capture, + reference_suffix, + capture_suffix); + + free(reference_suffix); + free(capture_suffix); + } + + cairo_surface_destroy(capture); + + igt_assert(match); +} + + +/** + * chamelium_analog_frame_crop: + * @chamelium: The Chamelium instance to use + * @dump: The chamelium frame dump to crop + * @width: The cropped frame width + * @height: The cropped frame height + * + * Detects the corners of a chamelium frame and crops it to the requested + * width/height. This is useful for VGA frame dumps that also contain the + * pixels dumped during the blanking intervals. + * + * The detection is done on a brightness-threshold-basis, that is adapted + * to the reference frame used by i-g-t. It may not be as relevant for other + * frames. + */ +void chamelium_crop_analog_frame(struct chamelium_frame_dump *dump, int width, + int height) +{ + unsigned char *bgr; + unsigned char *p; + unsigned char *q; + int top, left; + int x, y, xx, yy; + int score; + + if (dump->width == width && dump->height == height) + return; + + /* Start with the most bottom-right position. */ + top = dump->height - height; + left = dump->width - width; + + igt_assert(top >= 0 && left >= 0); + + igt_debug("Cropping analog frame from %dx%d to %dx%d\n", dump->width, + dump->height, width, height); + + /* Detect the top-left corner of the frame. */ + for (x = 0; x < dump->width; x++) { + for (y = 0; y < dump->height; y++) { + p = &dump->bgr[(x + y * dump->width) * 3]; + + /* Detect significantly bright pixels. */ + if (p[0] < 50 && p[1] < 50 && p[2] < 50) + continue; + + /* + * Make sure close-by pixels are also significantly + * bright. + */ + score = 0; + for (xx = x; xx < x + 10; xx++) { + for (yy = y; yy < y + 10; yy++) { + p = &dump->bgr[(xx + yy * dump->width) * 3]; + + if (p[0] > 50 && p[1] > 50 && p[2] > 50) + score++; + } + } + + /* Not enough pixels are significantly bright. */ + if (score < 25) + continue; + + if (x < left) + left = x; + + if (y < top) + top = y; + + if (left == x || top == y) + continue; + } + } + + igt_debug("Detected analog frame edges at %dx%d\n", left, top); + + /* Crop the frame given the detected top-left corner. */ + bgr = malloc(width * height * 3); + + for (y = 0; y < height; y++) { + p = &dump->bgr[(left + (top + y) * dump->width) * 3]; + q = &bgr[(y * width) * 3]; + memcpy(q, p, width * 3); + } + + free(dump->bgr); + dump->width = width; + dump->height = height; + dump->bgr = bgr; +} + +/** * chamelium_get_frame_limit: * @chamelium: The Chamelium instance to use * @port: The port to check the frame limit on @@ -1480,7 +1634,7 @@ igt_constructor { /* Frame dumps can be large, so we need to be able to handle very large * responses * - * Limit here is 10MB + * Limit here is 15MB */ - xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 10485760); + xmlrpc_limit_set(XMLRPC_XML_SIZE_LIMIT_ID, 15728640); } diff --git a/lib/igt_chamelium.h b/lib/igt_chamelium.h index 80afcafa..2a0fa234 100644 --- a/lib/igt_chamelium.h +++ b/lib/igt_chamelium.h @@ -101,7 +101,6 @@ int chamelium_get_captured_frame_count(struct chamelium *chamelium); int chamelium_get_frame_limit(struct chamelium *chamelium, struct chamelium_port *port, int w, int h); - void chamelium_assert_frame_eq(const struct chamelium *chamelium, const struct chamelium_frame_dump *dump, struct igt_fb *fb); @@ -109,6 +108,12 @@ void chamelium_assert_crc_eq_or_dump(struct chamelium *chamelium, igt_crc_t *reference_crc, igt_crc_t *capture_crc, struct igt_fb *fb, int index); +void chamelium_assert_analog_frame_match_or_dump(struct chamelium *chamelium, + struct chamelium_port *port, + const struct chamelium_frame_dump *frame, + struct igt_fb *fb); +void chamelium_crop_analog_frame(struct chamelium_frame_dump *dump, int width, + int height); void chamelium_destroy_frame_dump(struct chamelium_frame_dump *dump); #endif /* IGT_CHAMELIUM_H */ diff --git a/tests/chamelium.c b/tests/chamelium.c index 34448152..33ecc2e7 100644 --- a/tests/chamelium.c +++ b/tests/chamelium.c @@ -399,6 +399,10 @@ enable_output(data_t *data, BROADCAST_RGB_FULL); igt_display_commit(display); + + if (chamelium_port_get_type(port) == DRM_MODE_CONNECTOR_VGA) + usleep(250000); + chamelium_port_wait_video_input_stable(data->chamelium, port, HOTPLUG_TIMEOUT); @@ -533,6 +537,56 @@ test_display_frame_dump(data_t *data, struct chamelium_port *port) } static void +test_analog_frame_dump(data_t *data, struct chamelium_port *port) +{ + igt_display_t display; + igt_output_t *output; + igt_plane_t *primary; + struct igt_fb fb; + struct chamelium_frame_dump *frame; + drmModeModeInfo *mode; + drmModeConnector *connector; + int fb_id, i; + + output = prepare_output(data, &display, port); + connector = chamelium_port_get_connector(data->chamelium, port, false); + primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY); + igt_assert(primary); + + for (i = 0; i < connector->count_modes; i++) { + mode = &connector->modes[i]; + + fb_id = igt_create_color_pattern_fb(data->drm_fd, + mode->hdisplay, mode->vdisplay, + DRM_FORMAT_XRGB8888, + LOCAL_DRM_FORMAT_MOD_NONE, + 0, 0, 0, &fb); + igt_assert(fb_id > 0); + + enable_output(data, port, output, mode, &fb); + + igt_debug("Reading frame dumps from Chamelium...\n"); + + frame = chamelium_port_dump_pixels(data->chamelium, port, 0, 0, + 0, 0); + + chamelium_crop_analog_frame(frame, mode->hdisplay, + mode->vdisplay); + + chamelium_assert_analog_frame_match_or_dump(data->chamelium, + port, frame, &fb); + + chamelium_destroy_frame_dump(frame); + + disable_output(data, port, output); + igt_remove_fb(data->drm_fd, &fb); + } + + drmModeFreeConnector(connector); + igt_display_fini(&display); +} + +static void test_hpd_without_ddc(data_t *data, struct chamelium_port *port) { struct udev_monitor *mon = igt_watch_hotplug(); @@ -775,6 +829,9 @@ igt_main connector_subtest("vga-hpd-without-ddc", VGA) test_hpd_without_ddc(&data, port); + + connector_subtest("vga-frame-dump", VGA) + test_analog_frame_dump(&data, port); } igt_subtest_group { -- 2.13.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply related [flat|nested] 13+ messages in thread
* Re: [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support 2017-07-19 13:48 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 1/2] lib/igt_frame: Add support for analog frame comparison testing Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 2/2] chamelium: Add support for VGA " Paul Kocialkowski @ 2017-07-19 17:50 ` Lyude Paul 2017-07-20 15:15 ` Paul Kocialkowski 2 siblings, 1 reply; 13+ messages in thread From: Lyude Paul @ 2017-07-19 17:50 UTC (permalink / raw) To: Paul Kocialkowski, intel-gfx For both patches once you squash the configure.ac changes into the first one: Reviewed-by: Lyude <lyude@redhat.com> Once you post the new versions I'll just go ahead and push them On Wed, 2017-07-19 at 16:48 +0300, Paul Kocialkowski wrote: > Changes since v2: > * Changed analogue in favor of analog > * Integrated analog frame match fixup in the original commit > * Rebased on top of the new revisions of the series this depends on > > Changes since v1: > * Split analogue frame comparison to igt_frame, using cairo surfaces > * Added a chamelium helper for analogue frame checking and frame > dumping > _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support 2017-07-19 17:50 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Lyude Paul @ 2017-07-20 15:15 ` Paul Kocialkowski 0 siblings, 0 replies; 13+ messages in thread From: Paul Kocialkowski @ 2017-07-20 15:15 UTC (permalink / raw) To: Lyude Paul, intel-gfx On Wed, 2017-07-19 at 13:50 -0400, Lyude Paul wrote: > For both patches once you squash the configure.ac changes into the > first one: > > Reviewed-by: Lyude <lyude@redhat.com> > > Once you post the new versions I'll just go ahead and push them I think it makes more sense to split the configure.ac in two parts (as you'll see from v4). Since you may disgree, I haven't added your R-b. > On Wed, 2017-07-19 at 16:48 +0300, Paul Kocialkowski wrote: > > Changes since v2: > > * Changed analogue in favor of analog > > * Integrated analog frame match fixup in the original commit > > * Rebased on top of the new revisions of the series this depends on > > > > Changes since v1: > > * Split analogue frame comparison to igt_frame, using cairo surfaces > > * Added a chamelium helper for analogue frame checking and frame > > dumping > > -- Paul Kocialkowski <paul.kocialkowski@linux.intel.com> Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo, Finland _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx ^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2017-07-20 15:16 UTC | newest] Thread overview: 13+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2017-07-06 13:26 [PATCH i-g-t 0/1] chamelium: Add support for VGA frame comparison testing Paul Kocialkowski 2017-07-06 13:26 ` [PATCH i-g-t] " Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 1/2] lib/igt_frame: Add support for analogue frame comparison testing Paul Kocialkowski 2017-07-12 14:57 ` [PATCH i-g-t v2 2/2] chamelium: Add support for VGA " Paul Kocialkowski 2017-07-17 17:35 ` Lyude Paul 2017-07-19 12:31 ` Paul Kocialkowski 2017-07-17 17:38 ` [PATCH i-g-t 0/1] " Lyude Paul 2017-07-19 13:48 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 1/2] lib/igt_frame: Add support for analog frame comparison testing Paul Kocialkowski 2017-07-19 13:48 ` [PATCH i-g-t v3 2/2] chamelium: Add support for VGA " Paul Kocialkowski 2017-07-19 17:50 ` [PATCH i-g-t v3 0/2] Analogue/VGA frame comparison support Lyude Paul 2017-07-20 15:15 ` Paul Kocialkowski
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