kms_plane: Start a basic display plane test

We test the sprite plane positionning in there, for now.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

tests/.gitignore

@@ -111,6 +111,7 @@ kms_cursor_crc
 kms_fbc_crc
 kms_flip
 kms_pipe_crc_basic
+kms_plane
 kms_render
 kms_setmode
 pm_lpsp

tests/Makefile.sources

@@ -59,6 +59,7 @@ TESTS_progs_M = \
 	kms_fbc_crc \
 	kms_flip \
 	kms_pipe_crc_basic \
+	kms_plane \
 	kms_render \
 	kms_setmode \
 	pm_lpsp \

tests/kms_plane.c

@@ -0,0 +1,247 @@
+/*
+ * Copyright © 2014 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 AUTHORS OR COPYRIGHT HOLDERS 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:
+ *   Damien Lespiau <damien.lespiau@intel.com>
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <glib.h>
+
+#include "drmtest.h"
+#include "igt_debugfs.h"
+#include "igt_kms.h"
+
+typedef struct {
+	int drm_fd;
+	igt_debugfs_t debugfs;
+	igt_display_t display;
+} data_t;
+
+/*
+ * Plane position test.
+ *   - We start by grabbing a reference CRC of a full green fb being scanned
+ *     out on the primary plane
+ *   - Then we scannout 2 planes:
+ *      - the primary plane uses a green fb with a black rectangle
+ *      - a plane, on top of the primary plane, with a green fb that is set-up
+ *        to cover the black rectangle of the primary plane fb
+ *     The resulting CRC should be identical to the reference CRC
+ */
+
+typedef struct {
+	data_t *data;
+	igt_pipe_crc_t *pipe_crc;
+	igt_crc_t reference_crc;
+} test_position_t;
+
+/*
+ * create a green fb with a black rectangle at (rect_x,rect_y) and of size
+ * (rect_w,rect_h)
+ */
+static void
+create_fb_for_mode__position(data_t *data, drmModeModeInfo *mode,
+			     double rect_x, double rect_y,
+			     double rect_w, double rect_h,
+			     struct kmstest_fb *fb /* out */)
+{
+	unsigned int fb_id;
+	cairo_t *cr;
+
+	fb_id = kmstest_create_fb(data->drm_fd,
+				  mode->hdisplay, mode->vdisplay,
+				  32 /* bpp */, 24 /* depth */,
+				  false /* tiling */,
+				  fb);
+	igt_assert(fb_id);
+
+	cr = kmstest_get_cairo_ctx(data->drm_fd, fb);
+	kmstest_paint_color(cr, 0, 0, mode->hdisplay, mode->vdisplay,
+			    0.0, 1.0, 0.0);
+	kmstest_paint_color(cr, rect_x, rect_y, rect_w, rect_h, 0.0, 0.0, 0.0);
+	igt_assert(cairo_status(cr) == 0);
+	cairo_destroy(cr);
+}
+
+static void
+test_position_init(test_position_t *test, igt_output_t *output, enum pipe pipe)
+{
+	data_t *data = test->data;
+	struct kmstest_fb green_fb;
+	drmModeModeInfo *mode;
+	igt_plane_t *primary;
+
+	test->pipe_crc = igt_pipe_crc_new(&data->debugfs, data->drm_fd,
+					  pipe, INTEL_PIPE_CRC_SOURCE_AUTO);
+
+	igt_output_set_pipe(output, pipe);
+	primary = igt_ouput_get_plane(output, 0);
+
+	mode = igt_output_get_mode(output);
+	kmstest_create_color_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
+				DRM_FORMAT_XRGB8888,
+				false, /* tiled */
+				0.0, 1.0, 0.0,
+				&green_fb);
+	igt_plane_set_fb(primary, &green_fb);
+
+	igt_display_commit(&data->display);
+
+	igt_pipe_crc_collect_crc(test->pipe_crc, &test->reference_crc);
+
+	igt_plane_set_fb(primary, NULL);
+	igt_display_commit(&data->display);
+
+	kmstest_remove_fb(data->drm_fd, &green_fb);
+}
+
+static void
+test_position_fini(test_position_t *test, igt_output_t *output)
+{
+	igt_pipe_crc_free(test->pipe_crc);
+
+	igt_output_set_pipe(output, PIPE_ANY);
+	igt_display_commit(&test->data->display);
+}
+
+enum {
+	TEST_POSITION_FULLY_COVERED = 1 << 0,
+};
+
+static void
+test_plane_position_with_output(data_t *data,
+				enum pipe pipe,
+				enum igt_plane plane,
+				igt_output_t *output,
+				unsigned int flags)
+{
+	test_position_t test = { .data = data };
+	igt_plane_t *primary, *sprite;
+	struct kmstest_fb primary_fb, sprite_fb;
+	drmModeModeInfo *mode;
+	igt_crc_t crc;
+
+	fprintf(stdout, "Testing connector %s using pipe %c plane %d\n",
+		igt_output_name(output), pipe_name(pipe), plane);
+
+	test_position_init(&test, output, pipe);
+
+	mode = igt_output_get_mode(output);
+	primary = igt_ouput_get_plane(output, 0);
+	sprite = igt_ouput_get_plane(output, plane);
+
+	create_fb_for_mode__position(data, mode, 100, 100, 64, 64,
+				     &primary_fb);
+	igt_plane_set_fb(primary, &primary_fb);
+
+	kmstest_create_color_fb(data->drm_fd,
+				64, 64, /* width, height */
+				DRM_FORMAT_XRGB8888,
+				false, /* tiled */
+				0.0, 1.0, 0.0,
+				&sprite_fb);
+	igt_plane_set_fb(sprite, &sprite_fb);
+
+	if (flags & TEST_POSITION_FULLY_COVERED)
+		igt_plane_set_position(sprite, 100, 100);
+	else
+		igt_plane_set_position(sprite, 132, 132);
+
+	igt_display_commit(&data->display);
+
+	igt_pipe_crc_collect_crc(test.pipe_crc, &crc);
+
+	if (flags & TEST_POSITION_FULLY_COVERED)
+		igt_assert(igt_crc_equal(&test.reference_crc, &crc));
+	else
+		igt_assert(!igt_crc_equal(&test.reference_crc, &crc));
+
+	igt_plane_set_fb(primary, NULL);
+	igt_plane_set_fb(sprite, NULL);
+
+	test_position_fini(&test, output);
+}
+
+static void
+test_plane_position(data_t *data, enum pipe pipe, enum igt_plane plane,
+		    unsigned int flags)
+{
+	igt_output_t *output;
+
+	igt_skip_on(pipe >= data->display.n_pipes);
+	igt_skip_on(plane >= data->display.pipes[pipe].n_planes);
+
+	for_each_connected_output(&data->display, output)
+		test_plane_position_with_output(data, pipe, plane, output,
+						flags);
+}
+
+static void
+run_tests_for_pipe_plane(data_t *data, enum pipe pipe, enum igt_plane plane)
+{
+	igt_subtest_f("plane-position-covered-pipe-%c-plane-%d",
+		      pipe_name(pipe), plane)
+		test_plane_position(data, pipe, plane,
+				    TEST_POSITION_FULLY_COVERED);
+
+	igt_subtest_f("plane-position-hole-pipe-%c-plane-%d",
+		      pipe_name(pipe), plane)
+		test_plane_position(data, pipe, plane, 0);
+}
+
+static void
+run_tests_for_pipe(data_t *data, enum pipe pipe)
+{
+	int plane;
+
+	for (plane = 1; plane < IGT_MAX_PLANES; plane++)
+		run_tests_for_pipe_plane(data, pipe, plane);
+}
+
+static data_t data;
+
+igt_main
+{
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		data.drm_fd = drm_open_any();
+
+		igt_set_vt_graphics_mode();
+
+		igt_debugfs_init(&data.debugfs);
+		igt_pipe_crc_check(&data.debugfs);
+		igt_display_init(&data.display, data.drm_fd);
+	}
+
+	for (int pipe = 0; pipe < 3; pipe++)
+		run_tests_for_pipe(&data, pipe);
+
+	igt_fixture {
+		igt_display_fini(&data.display);
+	}
+}