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render/allocator: add wlr_allocator.buffer_caps

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This allows users to know the capabilities of the buffers that
will be allocated. The buffer capability is important to
know when negotiating buffer formats.
This commit is contained in:
Simon Ser 2021-05-31 20:16:32 +02:00 • committed by Simon Zeni
parent 5c30cf3d94
commit 766a24fa77
5 changed files with 33 additions and 10 deletions
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19
render/allocator.c
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@ -11,9 +11,10 @@
#include "types/wlr_buffer.h"
void wlr_allocator_init(struct wlr_allocator *alloc,
const struct wlr_allocator_interface *impl) {
const struct wlr_allocator_interface *impl, uint32_t buffer_caps) {
assert(impl && impl->destroy && impl->create_buffer);
alloc->impl = impl;
alloc->buffer_caps = buffer_caps;
wl_signal_init(&alloc->events.destroy);
}
@ -74,5 +75,19 @@ void wlr_allocator_destroy(struct wlr_allocator *alloc) {
struct wlr_buffer *wlr_allocator_create_buffer(struct wlr_allocator *alloc,
int width, int height, const struct wlr_drm_format *format) {
return alloc->impl->create_buffer(alloc, width, height, format);
struct wlr_buffer *buffer =
alloc->impl->create_buffer(alloc, width, height, format);
if (buffer == NULL) {
return NULL;
}
if (alloc->buffer_caps & WLR_BUFFER_CAP_DATA_PTR) {
assert(buffer->impl->get_data_ptr);
}
if (alloc->buffer_caps & WLR_BUFFER_CAP_DMABUF) {
assert(buffer->impl->get_dmabuf);
}
if (alloc->buffer_caps & WLR_BUFFER_CAP_SHM) {
assert(buffer->impl->get_shm);
}
return buffer;
}