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crtc/kms: Parse and store IN_FORMATS in full

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Rather than picking just one format, parse and store all the formats and
their modifiers.

This gives us a list of supported formats (and modifiers) on a CRTC
primary plane. Later I will be using this list to choose a framebuffer
format instead of hardcoding it.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/341
This commit is contained in:
Pekka Paalanen 2018-11-16 17:06:36 +02:00 committed by Jonas Ådahl
parent b04cca9eab
commit 30550ef688
1 changed files with 52 additions and 40 deletions
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92
src/backends/native/meta-crtc-kms.c
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@ -2,6 +2,7 @@
/*
* Copyright (C) 2013-2017 Red Hat
* Copyright (C) 2018 DisplayLink (UK) Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
@ -44,7 +45,12 @@ typedef struct _MetaCrtcKms
uint32_t rotation_map[ALL_TRANSFORMS];
uint32_t all_hw_transforms;
GArray *modifiers_xrgb8888;
/*
* primary plane's supported formats and maybe modifiers
* key: GUINT_TO_POINTER (format)
* value: owned GArray* (uint64_t modifier), or NULL
*/
GHashTable *formats_modifiers;
} MetaCrtcKms;
gboolean
@ -180,10 +186,8 @@ meta_crtc_kms_get_modifiers (MetaCrtc *crtc,
{
MetaCrtcKms *crtc_kms = crtc->driver_private;
if (format != DRM_FORMAT_XRGB8888)
return NULL;
return crtc_kms->modifiers_xrgb8888;
return g_hash_table_lookup (crtc_kms->formats_modifiers,
GUINT_TO_POINTER (format));
}
static inline uint32_t *
@ -199,6 +203,15 @@ modifiers_ptr (struct drm_format_modifier_blob *blob)
blob->modifiers_offset);
}
static void
free_modifier_array (GArray *array)
{
if (!array)
return;
g_array_free (array, TRUE);
}
static void
parse_formats (MetaCrtc *crtc,
int kms_fd,
@ -209,8 +222,9 @@ parse_formats (MetaCrtc *crtc,
struct drm_format_modifier_blob *blob_fmt;
uint32_t *formats;
struct drm_format_modifier *modifiers;
unsigned int i;
unsigned int xrgb_idx = UINT_MAX;
unsigned int fmt_i, mod_i;
g_return_if_fail (g_hash_table_size (crtc_kms->formats_modifiers) == 0);
if (blob_id == 0)
return;
@ -227,43 +241,36 @@ parse_formats (MetaCrtc *crtc,
blob_fmt = blob->data;
/* Find the index of our XRGB8888 format. */
formats = formats_ptr (blob_fmt);
for (i = 0; i < blob_fmt->count_formats; i++)
{
if (formats[i] == DRM_FORMAT_XRGB8888)
{
xrgb_idx = i;
break;
}
}
if (xrgb_idx == UINT_MAX)
{
drmModeFreePropertyBlob (blob);
return;
}
modifiers = modifiers_ptr (blob_fmt);
crtc_kms->modifiers_xrgb8888 = g_array_new (FALSE, FALSE, sizeof (uint64_t));
for (i = 0; i < blob_fmt->count_modifiers; i++)
for (fmt_i = 0; fmt_i < blob_fmt->count_formats; fmt_i++)
{
/* The modifier advertisement blob is partitioned into groups of
* 64 formats. */
if (xrgb_idx < modifiers[i].offset ||
xrgb_idx > modifiers[i].offset + 63)
continue;
GArray *mod_tmp = g_array_new (FALSE, FALSE, sizeof (uint64_t));
if (!(modifiers[i].formats & (1 << (xrgb_idx - modifiers[i].offset))))
continue;
for (mod_i = 0; mod_i < blob_fmt->count_modifiers; mod_i++)
{
struct drm_format_modifier *modifier = &modifiers[mod_i];
g_array_append_val (crtc_kms->modifiers_xrgb8888, modifiers[i].modifier);
}
/* The modifier advertisement blob is partitioned into groups of
* 64 formats. */
if (fmt_i < modifier->offset || fmt_i > modifier->offset + 63)
continue;
if (crtc_kms->modifiers_xrgb8888->len == 0)
{
g_array_free (crtc_kms->modifiers_xrgb8888, TRUE);
crtc_kms->modifiers_xrgb8888 = NULL;
if (!(modifier->formats & (1 << (fmt_i - modifier->offset))))
continue;
g_array_append_val (mod_tmp, modifier->modifier);
}
if (mod_tmp->len == 0)
{
free_modifier_array (mod_tmp);
mod_tmp = NULL;
}
g_hash_table_insert (crtc_kms->formats_modifiers,
GUINT_TO_POINTER (formats[fmt_i]), mod_tmp);
}
drmModeFreePropertyBlob (blob);
@ -423,8 +430,7 @@ meta_crtc_destroy_notify (MetaCrtc *crtc)
{
MetaCrtcKms *crtc_kms = crtc->driver_private;
if (crtc_kms->modifiers_xrgb8888)
g_array_free (crtc_kms->modifiers_xrgb8888, TRUE);
g_hash_table_destroy (crtc_kms->formats_modifiers);
g_free (crtc->driver_private);
}
@ -468,6 +474,12 @@ meta_create_kms_crtc (MetaGpuKms *gpu_kms,
crtc_kms = g_new0 (MetaCrtcKms, 1);
crtc_kms->index = crtc_index;
crtc_kms->formats_modifiers =
g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL,
(GDestroyNotify) free_modifier_array);
crtc->driver_private = crtc_kms;
crtc->driver_notify = (GDestroyNotify) meta_crtc_destroy_notify;