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linux-dmabuf-v1: fix MOD_INVALID handling in feedback tranches 

[1] has changed wlr_drm_format to remove the assumption that
MOD_INVALID is always implicitly enabled. MOD_INVALID is now part
of the modifier list just like any other modifier.

The patch adding support for linux-dmabuf-v1 feedback has been
written a lot of time before [1], and hasn't been updated accordingly
when merged. This results in MOD_INVALID being advertised twice [2] and
other index bugs.

Fix these issues by removing special-casing for MOD_INVALID.

[1]: https://gitlab.freedesktop.org/wlroots/wlroots/-/merge_requests/3231
[2]: https://github.com/swaywm/sway/issues/7028
This commit is contained in:
Simon Ser 2022-05-26 10:28:21 +02:00 committed by Simon Zeni
parent be86145322
commit 4d7f1aeb73
1 changed files with 2 additions and 26 deletions
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28
types/wlr_linux_dmabuf_v1.c
View File

@ -475,16 +475,12 @@ static ssize_t get_drm_format_set_index(const struct wlr_drm_format_set *set,
format_found = true;
break;
}
idx += 1 + fmt->len;
idx += fmt->len;
}
if (!format_found) {
return -1;
}
if (modifier == DRM_FORMAT_MOD_INVALID) {
return idx;
}
for (size_t i = 0; i < fmt->len; i++) {
if (fmt->modifiers[i] == modifier) {
return idx;
@ -506,7 +502,7 @@ static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
size_t table_len = 0;
for (size_t i = 0; i < fallback_tranche->formats->len; i++) {
const struct wlr_drm_format *fmt = fallback_tranche->formats->formats[i];
table_len += 1 + fmt->len;
table_len += fmt->len;
}
assert(table_len > 0);
@ -533,12 +529,6 @@ static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
for (size_t i = 0; i < fallback_tranche->formats->len; i++) {
const struct wlr_drm_format *fmt = fallback_tranche->formats->formats[i];
table[n] = (struct wlr_linux_dmabuf_feedback_v1_table_entry){
.format = fmt->format,
.modifier = DRM_FORMAT_MOD_INVALID,
};
n++;
for (size_t k = 0; k < fmt->len; k++) {
table[n] = (struct wlr_linux_dmabuf_feedback_v1_table_entry){
.format = fmt->format,
@ -584,20 +574,6 @@ static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
uint16_t *indices = compiled_tranche->indices.data;
for (size_t j = 0; j < tranche->formats->len; j++) {
const struct wlr_drm_format *fmt = tranche->formats->formats[j];
ssize_t index = get_drm_format_set_index(
fallback_tranche->formats, fmt->format,
DRM_FORMAT_MOD_INVALID);
if (index < 0) {
wlr_log(WLR_ERROR, "Format 0x%" PRIX32 " and modifier "
"INVALID are in tranche #%zu but are missing "
"from the fallback tranche",
fmt->format, i);
goto error_compiled;
}
indices[n] = index;
n++;
for (size_t k = 0; k < fmt->len; k++) {
ssize_t index = get_drm_format_set_index(
fallback_tranche->formats, fmt->format, fmt->modifiers[k]);