[igt-dev] [PATCH i-g-t 1/8] lib/fb: Introduce igt_fb_modifier_name()

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Provide a human redable name for modifiers. Only plugged in the
i915 specific ones for now. Also provide some printf format macros
for convenience.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 lib/igt_fb.c | 26 ++++++++++++++++++++++++++
 lib/igt_fb.h |  4 ++++
 2 files changed, 30 insertions(+)

diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index f1e1099ec864..63f3c86e75f0 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -4328,3 +4328,29 @@ void igt_format_array_fill(uint32_t **formats_array, unsigned int *count,
 		(*formats_array)[index++] = format->drm_id;
 	}
 }
+
+const char *igt_fb_modifier_name(uint64_t modifier)
+{
+	switch (modifier) {
+	case DRM_FORMAT_MOD_LINEAR:
+		return "linear";
+	case I915_FORMAT_MOD_X_TILED:
+		return "X";
+	case I915_FORMAT_MOD_Y_TILED:
+		return "Y";
+	case I915_FORMAT_MOD_Yf_TILED:
+		return "Yf";
+	case I915_FORMAT_MOD_Y_TILED_CCS:
+		return "Y-CCS";
+	case I915_FORMAT_MOD_Yf_TILED_CCS:
+		return "Yf-CCS";
+	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
+		return "Y-RC_CCS";
+	case I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC:
+		return "Y-RC_CCS-CC";
+	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
+		return "Y-MC_CCS";
+	default:
+		return "?";
+	}
+}
diff --git a/lib/igt_fb.h b/lib/igt_fb.h
index 2c2b8265b5f6..c61d9e7219ff 100644
--- a/lib/igt_fb.h
+++ b/lib/igt_fb.h
@@ -52,6 +52,9 @@ struct buf_ops;
 #define IGT_FORMAT_ARGS(f) ((f) >> 0) & 0xff, ((f) >> 8) & 0xff, \
 		((f) >> 16) & 0xff, ((f) >> 24) & 0xff, (f)
 
+#define IGT_MODIFIER_FMT "%s(0x%" PRIx64 ")"
+#define IGT_MODIFIER_ARGS(m) igt_fb_modifier_name(m), (m)
+
 /**
  * igt_fb_t:
  * @fb_id: KMS ID of the framebuffer
@@ -217,6 +220,7 @@ int igt_fill_cts_framebuffer(uint32_t *pixmap, uint32_t video_width,
 		uint32_t video_height, uint32_t bitdepth, int alpha);
 
 int igt_fb_get_fnv1a_crc(struct igt_fb *fb, igt_crc_t *crc);
+const char *igt_fb_modifier_name(uint64_t modifier);
 
 #endif /* __IGT_FB_H__ */
 
-- 
2.32.0