Re: [PATCH libdrm] modetest: Decode IN_FORMATS plane blob property

On Thu, Sep 28, 2017 at 4:44 PM, Kristian H. Kristensen hoegsberg@gmail.com wrote:

This teaches modetest about the new IN_FORMATS blob and decodes the blob to show supported formats and modifiers.

Signed-off-by: Kristian H. Kristensen hoegsberg@chromium.org

I went ahead and pushed this.

Kristian

---

tests/modetest/modetest.c | 86 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+)

diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c index b8891ff5..8ad4766f 100644 --- a/tests/modetest/modetest.c +++ b/tests/modetest/modetest.c @@ -251,6 +251,89 @@ static void dump_blob(struct device *dev, uint32_t blob_id) drmModeFreePropertyBlob(blob); }

+static const char *modifier_to_string(uint64_t modifier) +{

•   switch (modifier) {
  

•   case DRM_FORMAT_MOD_INVALID:
  

•           return "INVALID";
  

•   case DRM_FORMAT_MOD_LINEAR:
  

•           return "LINEAR";
  

•   case I915_FORMAT_MOD_X_TILED:
  

•           return "X_TILED";
  

•   case I915_FORMAT_MOD_Y_TILED:
  

•           return "Y_TILED";
  

•   case I915_FORMAT_MOD_Yf_TILED:
  

•           return "Yf_TILED";
  

•   case I915_FORMAT_MOD_Y_TILED_CCS:
  

•           return "Y_TILED_CCS";
  

•   case I915_FORMAT_MOD_Yf_TILED_CCS:
  

•           return "Yf_TILED_CCS";
  

•   case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE:
  

•           return "SAMSUNG_64_32_TILE";
  

•   case DRM_FORMAT_MOD_VIVANTE_TILED:
  

•           return "VIVANTE_TILED";
  

•   case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
  

•           return "VIVANTE_SUPER_TILED";
  

•   case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
  

•           return "VIVANTE_SPLIT_TILED";
  

•   case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
  

•           return "VIVANTE_SPLIT_SUPER_TILED";
  

•   case NV_FORMAT_MOD_TEGRA_TILED:
  

•           return "MOD_TEGRA_TILED";
  

•   case NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(0):
  

•           return "MOD_TEGRA_16BX2_BLOCK(0)";
  

•   case NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(1):
  

•           return "MOD_TEGRA_16BX2_BLOCK(1)";
  

•   case NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(2):
  

•           return "MOD_TEGRA_16BX2_BLOCK(2)";
  

•   case NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(3):
  

•           return "MOD_TEGRA_16BX2_BLOCK(3)";
  

•   case NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(4):
  

•           return "MOD_TEGRA_16BX2_BLOCK(4)";
  

•   case NV_FORMAT_MOD_TEGRA_16BX2_BLOCK(5):
  

•           return "MOD_TEGRA_16BX2_BLOCK(5)";
  

•   case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
  

•           return "MOD_BROADCOM_VC4_T_TILED";
  

•   default:
  

•           return "(UNKNOWN MODIFIER)";
  

•   }
  

+}

+static void dump_in_formats(struct device *dev, uint32_t blob_id) +{

•   uint32_t i, j;
  

•   drmModePropertyBlobPtr blob;
  

•   struct drm_format_modifier_blob *header;
  

•   uint32_t *formats;
  

•   struct drm_format_modifier *modifiers;
  

•   printf("\t\tin_formats blob decoded:\n");
  

•   blob = drmModeGetPropertyBlob(dev->fd, blob_id);
  

•   if (!blob) {
  

•           printf("\n");
  

•           return;
  

•   }
  

•   header = blob->data;
  

•   formats = (uint32_t *) ((char *) header + header->formats_offset);
  

•   modifiers = (struct drm_format_modifier *)
  

•           ((char *) header + header->modifiers_offset);
  

•   for (i = 0; i < header->count_formats; i++) {
  

•           printf("\t\t\t");
  

•           dump_fourcc(formats[i]);
  

•           printf(": ");
  

•           for (j = 0; j < header->count_modifiers; j++) {
  

•                   uint64_t mask = 1ULL << i;
  

•                   if (modifiers[j].formats & mask)
  

•                           printf(" %s", modifier_to_string(modifiers[j].modifier));
  

•           }
  

•           printf("\n");
  

•   }
  

•   drmModeFreePropertyBlob(blob);
  

+}

static void dump_prop(struct device *dev, drmModePropertyPtr prop, uint32_t prop_id, uint64_t value) { @@ -328,6 +411,9 @@ static void dump_prop(struct device *dev, drmModePropertyPtr prop, printf(" %"PRId64"\n", value); else printf(" %"PRIu64"\n", value);

•   if (strcmp(prop->name, "IN_FORMATS") == 0)
  

•           dump_in_formats(dev, value);
  

}

static void dump_connectors(struct device *dev)

2.14.2.822.g60be5d43e6-goog