[igt-dev] [PATCH i-g-t] tests/kms_scaling_modes: New IGT to validate scaling modes
Swati Sharma
swati2.sharma at intel.com
Mon Jan 3 16:19:57 UTC 2022
In this IGT, various scaling modes are validated. Scaling
mode is one of the connector properties. This property
defines how a non-native mode is upscaled to the native
mode of an LCD panel.
There are basically 4 types of scaling modes defined:
None:
No upscaling happens, scaling is left to the panel. Not all
drivers expose this mode.
Full:
The output is upscaled to the full resolution of the panel,
ignoring the aspect ratio. It will expand current image to
the size of the monitor.
Center:
No upscaling happens, the output is centered within the native
resolution the panel. As a result, black bars may appear
around the image.
Full aspect:
The output is upscaled to maximize either the width or height
while retaining the aspect ratio. It will fill the screen w/o
stretching the image. Black bars are placed either on top
and bottom or left and right of the picture.
Note: This IGT is build upon kms_panel_fitting
Signed-off-by: Swati Sharma <swati2.sharma at intel.com>
---
tests/kms_scaling_modes.c | 167 ++++++++++++++++++++++++++++++++++++++
tests/meson.build | 1 +
2 files changed, 168 insertions(+)
create mode 100644 tests/kms_scaling_modes.c
diff --git a/tests/kms_scaling_modes.c b/tests/kms_scaling_modes.c
new file mode 100644
index 00000000..d90783d0
--- /dev/null
+++ b/tests/kms_scaling_modes.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright © 2022 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Swati Sharma <swati2.sharma at intel.com>
+ *
+ */
+
+#include "igt.h"
+#include <fcntl.h>
+#include <termios.h>
+#include <unistd.h>
+
+IGT_TEST_DESCRIPTION("Test display scaling modes");
+
+/* Test flags */
+enum {
+ TEST_NONE = 1 << 0,
+ TEST_FULL = 1 << 1,
+ TEST_CENTER = 1 << 2,
+ TEST_FULLASPECT = 1 << 3,
+};
+
+/* Common test data */
+typedef struct data {
+ igt_display_t display;
+ int drm_fd;
+} data_t;
+
+static void test_cycle_flags(igt_output_t *output, uint32_t test_flags)
+{
+ if (test_flags & TEST_NONE)
+ igt_output_set_prop_value(output, IGT_CONNECTOR_SCALING_MODE, DRM_MODE_SCALE_NONE);
+ if (test_flags & TEST_FULL)
+ igt_output_set_prop_value(output, IGT_CONNECTOR_SCALING_MODE, DRM_MODE_SCALE_FULLSCREEN);
+ if (test_flags & TEST_CENTER)
+ igt_output_set_prop_value(output, IGT_CONNECTOR_SCALING_MODE, DRM_MODE_SCALE_CENTER);
+ if (test_flags & TEST_FULLASPECT)
+ igt_output_set_prop_value(output, IGT_CONNECTOR_SCALING_MODE, DRM_MODE_SCALE_ASPECT);
+}
+
+static void test_scaling_mode_on_output(igt_display_t *display, const enum pipe pipe,
+ igt_output_t *output, uint32_t flags)
+{
+ igt_plane_t *primary, *sprite;
+ drmModeModeInfo mode;
+ struct igt_fb red, blue;
+ int ret;
+
+ igt_output_set_pipe(output, pipe);
+ mode = *igt_output_get_mode(output);
+
+ primary = igt_output_get_plane_type(output, DRM_PLANE_TYPE_PRIMARY);
+ sprite = igt_output_get_plane_type(output, DRM_PLANE_TYPE_OVERLAY);
+
+ igt_create_color_fb(display->drm_fd, mode.hdisplay, mode.vdisplay,
+ DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE,
+ 0.f, 0.f, 1.f, &blue);
+
+ igt_create_color_fb(display->drm_fd, 640, 480,
+ DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE,
+ 1.f, 0.f, 0.f, &red);
+
+ igt_plane_set_fb(primary, &blue);
+ igt_plane_set_fb(sprite, &red);
+
+ igt_display_commit2(display, COMMIT_ATOMIC);
+
+ mode.hdisplay = 640;
+ mode.vdisplay = 480;
+ igt_output_override_mode(output, &mode);
+
+ igt_plane_set_fb(sprite, NULL);
+ igt_plane_set_fb(primary, &red);
+
+ test_cycle_flags(output, flags);
+
+ /* Don't pass ALLOW_MODESET with overridden mode, force fastset */
+ ret = igt_display_try_commit_atomic(display, 0, NULL);
+
+ if (ret != -EINVAL)
+ igt_display_commit_atomic(display, 0, NULL);
+ else
+ igt_skip_on_f(ret == -EINVAL, "Scaling mode not supported\n");
+
+ igt_remove_fb(display->drm_fd, &red);
+ igt_remove_fb(display->drm_fd, &blue);
+}
+
+/* Returns true if an output supports scaling mode property */
+static bool has_scaling_mode(igt_output_t *output)
+{
+ return igt_output_has_prop(output, IGT_CONNECTOR_SCALING_MODE) &&
+ igt_output_get_prop(output, IGT_CONNECTOR_SCALING_MODE);
+}
+
+static void test_scaling_mode(data_t *data, uint32_t flags)
+{
+ igt_display_t *display = &data->display;
+ igt_output_t *output;
+ enum pipe pipe;
+ int valid_tests = 0;
+
+ for_each_pipe_with_valid_output(display, pipe, output) {
+ if (!has_scaling_mode(output))
+ continue;
+
+ igt_dynamic_f("%s-pipe-%s", output->name, kmstest_pipe_name(pipe));
+ igt_display_reset(display);
+ test_scaling_mode_on_output(display, pipe, output, flags);
+ valid_tests++;
+ }
+
+ igt_require_f(valid_tests, "No valid crtc/connector combinations found\n");
+}
+
+igt_main
+{
+ data_t data = {};
+
+ igt_fixture {
+ data.drm_fd = drm_open_driver_master(DRIVER_ANY);
+ igt_require(data.drm_fd >= 0);
+
+ kmstest_set_vt_graphics_mode();
+
+ igt_display_require(&data.display, data.drm_fd);
+ igt_require(data.display.is_atomic);
+
+ igt_display_require_output(&data.display);
+ }
+
+ igt_describe("Tests full display scaling mode");
+ igt_subtest_with_dynamic("scaling-mode-full")
+ test_scaling_mode(&data, TEST_FULL);
+ igt_describe("Tests center display scaling mode");
+ igt_subtest_with_dynamic("scaling-mode-center")
+ test_scaling_mode(&data, TEST_CENTER);
+ igt_describe("Tests full aspect display scaling mode");
+ igt_subtest_with_dynamic("scaling-mode-full-aspect")
+ test_scaling_mode(&data, TEST_FULLASPECT);
+ igt_describe("Tests none display scaling mode (no scaling)");
+ igt_subtest_with_dynamic("scaling-mode-none")
+ test_scaling_mode(&data, TEST_NONE);
+
+ igt_fixture
+ igt_display_fini(&data.display);
+}
diff --git a/tests/meson.build b/tests/meson.build
index c14acf99..7003d064 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -50,6 +50,7 @@ test_progs = [
'kms_properties',
'kms_rmfb',
'kms_rotation_crc',
+ 'kms_scaling_modes',
'kms_selftest',
'kms_sequence',
'kms_setmode',
--
2.25.1
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