return gbm->is_format_supported(gbm, format, usage);
}
+/** Get the number of planes that are required for a given format+modifier
+ *
+ * \param gbm The gbm device returned from gbm_create_device()
+ * \param format The format to query
+ * \param modifier The modifier to query
+ */
+GBM_EXPORT int
+gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm,
+ uint32_t format,
+ uint64_t modifier)
+{
+ return gbm->get_format_modifier_plane_count(gbm, format, modifier);
+}
+
/** Destroy the gbm device and free all resources associated with it.
*
* \param gbm The device created using gbm_create_device()
* \param gbm The gbm device returned from gbm_create_device()
* \param width The width for the buffer
* \param height The height for the buffer
- * \param format The format to use for the buffer
+ * \param format The format to use for the buffer, from GBM_FORMAT_* or
+ * GBM_BO_FORMAT_* tokens
* \param usage The union of the usage flags for this buffer
*
* \return A newly allocated buffer that should be freed with gbm_bo_destroy()
* when no longer needed. If an error occurs during allocation %NULL will be
* returned and errno set.
*
- * \sa enum gbm_bo_format for the list of formats
* \sa enum gbm_bo_flags for the list of usage flags
*/
GBM_EXPORT struct gbm_bo *
{
return surf->gbm->surface_has_free_buffers(surf);
}
+
+/* The two GBM_BO_FORMAT_[XA]RGB8888 formats alias the GBM_FORMAT_*
+ * formats of the same name. We want to accept them whenever someone
+ * has a GBM format, but never return them to the user. */
+uint32_t
+gbm_format_canonicalize(uint32_t gbm_format)
+{
+ switch (gbm_format) {
+ case GBM_BO_FORMAT_XRGB8888:
+ return GBM_FORMAT_XRGB8888;
+ case GBM_BO_FORMAT_ARGB8888:
+ return GBM_FORMAT_ARGB8888;
+ default:
+ return gbm_format;
+ }
+}
+
+/**
+ * Returns a string representing the fourcc format name.
+ *
+ * \param desc Caller-provided storage for the format name string.
+ * \return String containing the fourcc of the format.
+ */
+GBM_EXPORT char *
+gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc)
+{
+ gbm_format = gbm_format_canonicalize(gbm_format);
+
+ desc->name[0] = gbm_format;
+ desc->name[1] = gbm_format >> 8;
+ desc->name[2] = gbm_format >> 16;
+ desc->name[3] = gbm_format >> 24;
+ desc->name[4] = 0;
+
+ return desc->name;
+}