[igt-dev] [PATCH i-g-t 1/2] tests/kms_rotation_crc: different display modes can have different crc

[Juha-Pekka Heikkila]

Different resolutions with same content may have different crc hence generate
buffer verification crcs for different modes if needed.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
---
 tests/kms_rotation_crc.c | 54 +++++++++++++++++++++++++++++++++-------
 1 file changed, 45 insertions(+), 9 deletions(-)

diff --git a/tests/kms_rotation_crc.c b/tests/kms_rotation_crc.c
index e7072e208..7fce6ca3e 100644
--- a/tests/kms_rotation_crc.c
+++ b/tests/kms_rotation_crc.c
@@ -30,6 +30,7 @@
 #define MAXMULTIPLANESAMOUNT 2
 #define TEST_MAX_WIDTH 640
 #define TEST_MAX_HEIGHT 480
+#define MAX_TESTED_MODES 8
 
 struct p_struct {
 	igt_plane_t *plane;
@@ -79,11 +80,15 @@ typedef struct {
 	bool use_native_resolution;
 	bool extended;
 
+	int output_crc_in_use, max_crc_in_use;
 	struct crc_rect_tag {
+		int mode;
 		bool valid;
 		igt_crc_t ref_crc;
 		igt_crc_t flip_crc;
-	} crc_rect[num_rectangle_types];
+	} crc_rect[MAX_TESTED_MODES][num_rectangle_types];
+
+	igt_fb_t last_on_screen;
 } data_t;
 
 typedef struct {
@@ -169,7 +174,6 @@ static void remove_fbs(data_t *data)
 {
 	igt_remove_fb(data->gfx_fd, &data->fb);
 	igt_remove_fb(data->gfx_fd, &data->fb_reference);
-	igt_remove_fb(data->gfx_fd, &data->fb_flip);
 }
 
 static void cleanup_crtc(data_t *data)
@@ -272,7 +276,7 @@ static void prepare_fbs(data_t *data, igt_output_t *output,
 	 */
 	igt_require(igt_display_has_format_mod(display, pixel_format, tiling));
 
-	if (!data->crc_rect[rect].valid) {
+	if (!data->crc_rect[data->output_crc_in_use][rect].valid) {
 		/*
 		* Create a reference software rotated flip framebuffer.
 		*/
@@ -285,7 +289,9 @@ static void prepare_fbs(data_t *data, igt_output_t *output,
 			igt_plane_set_position(plane, data->pos_x, data->pos_y);
 		igt_display_commit2(display, COMMIT_ATOMIC);
 
-		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &data->crc_rect[rect].flip_crc);
+		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc,
+					 &data->crc_rect[data->output_crc_in_use][rect].flip_crc);
+
 		igt_remove_fb(data->gfx_fd, &data->fb_flip);
 
 		/*
@@ -300,10 +306,13 @@ static void prepare_fbs(data_t *data, igt_output_t *output,
 			igt_plane_set_position(plane, data->pos_x, data->pos_y);
 		igt_display_commit2(display, COMMIT_ATOMIC);
 
-		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &data->crc_rect[rect].ref_crc);
-		data->crc_rect[rect].valid = true;
+		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc,
+					 &data->crc_rect[data->output_crc_in_use][rect].ref_crc);
+
+		data->crc_rect[data->output_crc_in_use][rect].valid = true;
 	}
 
+	data->last_on_screen = data->fb_flip;
 	/*
 	  * Prepare the non-rotated flip fb.
 	  */
@@ -340,6 +349,13 @@ static void test_single_case(data_t *data, enum pipe pipe,
 		igt_plane_set_size(plane, data->fb.height, data->fb.width);
 
 	ret = igt_display_try_commit2(display, COMMIT_ATOMIC);
+
+	/*
+	 * Remove this last fb after it was taken out from screen
+	 * to avoid unnecessary delays.
+	 */
+	igt_remove_fb(data->gfx_fd, &data->fb_flip);
+
 	if (test_bad_format) {
 		igt_pipe_crc_drain(data->pipe_crc);
 		igt_assert_eq(ret, -EINVAL);
@@ -351,7 +367,8 @@ static void test_single_case(data_t *data, enum pipe pipe,
 
 	/* Check CRC */
 	igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &crc_output);
-	igt_assert_crc_equal(&data->crc_rect[rect].ref_crc, &crc_output);
+	igt_assert_crc_equal(&data->crc_rect[data->output_crc_in_use][rect].ref_crc,
+			     &crc_output);
 
 	/*
 	 * If flips are requested flip to a different fb and
@@ -374,7 +391,8 @@ static void test_single_case(data_t *data, enum pipe pipe,
 		}
 		kmstest_wait_for_pageflip(data->gfx_fd);
 		igt_pipe_crc_get_current(display->drm_fd, data->pipe_crc, &crc_output);
-		igt_assert_crc_equal(&data->crc_rect[rect].flip_crc, &crc_output);
+		igt_assert_crc_equal(&data->crc_rect[data->output_crc_in_use][rect].flip_crc,
+				     &crc_output);
 	}
 }
 
@@ -403,6 +421,7 @@ static bool test_format(data_t *data,
 static void test_plane_rotation(data_t *data, int plane_type, bool test_bad_format)
 {
 	igt_display_t *display = &data->display;
+	drmModeModeInfo *mode;
 	igt_output_t *output;
 	enum pipe pipe;
 	int pipe_count = 0;
@@ -416,8 +435,25 @@ static void test_plane_rotation(data_t *data, int plane_type, bool test_bad_form
 		igt_plane_t *plane;
 		int i, j, c;
 
+		mode = igt_output_get_mode(output);
+
+		for (data->output_crc_in_use = 0;
+		     data->output_crc_in_use < data->max_crc_in_use &&
+		     data->crc_rect[data->output_crc_in_use][0].mode != mode->vdisplay;
+		     data->output_crc_in_use++)
+			;
+
+		/*
+		 * This is if there was different mode on different connector.
+		 */
+		if (data->crc_rect[data->output_crc_in_use][0].mode != mode->vdisplay) {
+			data->crc_rect[data->output_crc_in_use][0].mode = mode->vdisplay;
+			if (++data->max_crc_in_use >= MAX_TESTED_MODES)
+				data->max_crc_in_use = MAX_TESTED_MODES - 1;
+		}
+
 		for (c = 0; c < num_rectangle_types; c++)
-			data->crc_rect[c].valid = false;
+			data->crc_rect[data->output_crc_in_use][c].valid = false;
 
 		if (IS_CHERRYVIEW(data->devid) && pipe != PIPE_B)
 			continue;
-- 
2.28.0