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linux-dmabuf-v1: stop using const in feedback 

Instead of using const pointers, use structs owned by the tranche.
This will allow wlroots to expose helpers to build feedback
objects.
This commit is contained in:
Simon Ser 2022-12-09 17:58:40 +01:00 committed by Simon Zeni
parent f6008ffff4
commit 5cd14dfc91
2 changed files with 31 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
include/wlr/types/wlr_linux_dmabuf_v1.h
View File

@ -44,14 +44,13 @@ struct wlr_dmabuf_v1_buffer *wlr_dmabuf_v1_buffer_from_buffer_resource(
struct wlr_linux_dmabuf_feedback_v1 {
dev_t main_device;
size_t tranches_len;
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranches;
struct wl_array tranches; // struct wlr_linux_dmabuf_feedback_v1_tranche
};
struct wlr_linux_dmabuf_feedback_v1_tranche {
dev_t target_device;
uint32_t flags; // bitfield of enum zwp_linux_dmabuf_feedback_v1_tranche_flags
const struct wlr_drm_format_set *formats;
struct wlr_drm_format_set formats;
};
/* the protocol interface */

52
types/wlr_linux_dmabuf_v1.c
View File

@ -496,16 +496,17 @@ static ssize_t get_drm_format_set_index(const struct wlr_drm_format_set *set,
static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
const struct wlr_linux_dmabuf_feedback_v1 *feedback) {
assert(feedback->tranches_len > 0);
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranches = feedback->tranches.data;
size_t tranches_len = feedback->tranches.size / sizeof(struct wlr_linux_dmabuf_feedback_v1_tranche);
assert(tranches_len > 0);
// Require the last tranche to be the fallback tranche and contain all
// formats/modifiers
const struct wlr_linux_dmabuf_feedback_v1_tranche *fallback_tranche =
&feedback->tranches[feedback->tranches_len - 1];
const struct wlr_linux_dmabuf_feedback_v1_tranche *fallback_tranche = &tranches[tranches_len - 1];
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];
for (size_t i = 0; i < fallback_tranche->formats.len; i++) {
const struct wlr_drm_format *fmt = fallback_tranche->formats.formats[i];
table_len += fmt->len;
}
assert(table_len > 0);
@ -530,8 +531,8 @@ static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
close(rw_fd);
size_t n = 0;
for (size_t i = 0; i < fallback_tranche->formats->len; i++) {
const struct wlr_drm_format *fmt = fallback_tranche->formats->formats[i];
for (size_t i = 0; i < fallback_tranche->formats.len; i++) {
const struct wlr_drm_format *fmt = fallback_tranche->formats.formats[i];
for (size_t k = 0; k < fmt->len; k++) {
table[n] = (struct wlr_linux_dmabuf_feedback_v1_table_entry){
@ -547,21 +548,20 @@ static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
struct wlr_linux_dmabuf_feedback_v1_compiled *compiled = calloc(1,
sizeof(struct wlr_linux_dmabuf_feedback_v1_compiled) +
feedback->tranches_len * sizeof(struct wlr_linux_dmabuf_feedback_v1_compiled_tranche));
tranches_len * sizeof(struct wlr_linux_dmabuf_feedback_v1_compiled_tranche));
if (compiled == NULL) {
close(ro_fd);
return NULL;
}
compiled->main_device = feedback->main_device;
compiled->tranches_len = feedback->tranches_len;
compiled->tranches_len = tranches_len;
compiled->table_fd = ro_fd;
compiled->table_size = table_size;
// Build the indices lists for all but the last (fallback) tranches
for (size_t i = 0; i < feedback->tranches_len - 1; i++) {
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranche =
&feedback->tranches[i];
for (size_t i = 0; i < tranches_len - 1; i++) {
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranche = &tranches[i];
struct wlr_linux_dmabuf_feedback_v1_compiled_tranche *compiled_tranche =
&compiled->tranches[i];
@ -576,11 +576,11 @@ static struct wlr_linux_dmabuf_feedback_v1_compiled *feedback_compile(
n = 0;
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];
for (size_t j = 0; j < tranche->formats.len; j++) {
const struct wlr_drm_format *fmt = tranche->formats.formats[j];
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]);
&fallback_tranche->formats, fmt->format, fmt->modifiers[k]);
if (index < 0) {
wlr_log(WLR_ERROR, "Format 0x%" PRIX32 " and modifier "
"0x%" PRIX64 " are in tranche #%zu but are missing "
@ -653,11 +653,12 @@ static bool feedback_tranche_init_with_renderer(
}
tranche->target_device = stat.st_rdev;
tranche->formats = wlr_renderer_get_dmabuf_texture_formats(renderer);
if (tranche->formats == NULL) {
const struct wlr_drm_format_set *formats = wlr_renderer_get_dmabuf_texture_formats(renderer);
if (formats == NULL) {
wlr_log(WLR_ERROR, "Failed to get renderer DMA-BUF texture formats");
return false;
}
tranche->formats = *formats;
return true;
}
@ -935,11 +936,14 @@ static bool set_default_feedback(struct wlr_linux_dmabuf_v1 *linux_dmabuf,
goto error_compiled;
}
size_t tranches_len =
feedback->tranches.size / sizeof(struct wlr_linux_dmabuf_feedback_v1_tranche);
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranches = feedback->tranches.data;
struct wlr_drm_format_set formats = {0};
for (size_t i = 0; i < feedback->tranches_len; i++) {
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranche = &feedback->tranches[i];
for (size_t j = 0; j < tranche->formats->len; j++) {
const struct wlr_drm_format *fmt = tranche->formats->formats[j];
for (size_t i = 0; i < tranches_len; i++) {
const struct wlr_linux_dmabuf_feedback_v1_tranche *tranche = &tranches[i];
for (size_t j = 0; j < tranche->formats.len; j++) {
const struct wlr_drm_format *fmt = tranche->formats.formats[j];
for (size_t k = 0; k < fmt->len; k++) {
if (!wlr_drm_format_set_add(&formats, fmt->format, fmt->modifiers[k])) {
goto error_formats;
@ -1016,8 +1020,10 @@ struct wlr_linux_dmabuf_v1 *wlr_linux_dmabuf_v1_create_with_renderer(struct wl_d
}
const struct wlr_linux_dmabuf_feedback_v1 feedback = {
.main_device = tranche.target_device,
.tranches = &tranche,
.tranches_len = 1,
.tranches = {
.data = &tranche,
.size = sizeof(tranche),
},
};
return wlr_linux_dmabuf_v1_create(display, version, &feedback);
}