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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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8
render/shm_allocator.c
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@ -7,6 +7,7 @@
#include "render/pixel_format.h"
#include "render/shm_allocator.h"
#include "util/shm.h"
#include "types/wlr_buffer.h"
static const struct wlr_buffer_impl buffer_impl;
@ -30,7 +31,7 @@ static bool buffer_get_shm(struct wlr_buffer *wlr_buffer,
return true;
}
static bool buffer_get_data_ptr(struct wlr_buffer *wlr_buffer, void **data,
static bool shm_buffer_get_data_ptr(struct wlr_buffer *wlr_buffer, void **data,
uint32_t *format, size_t *stride) {
struct wlr_shm_buffer *buffer = shm_buffer_from_buffer(wlr_buffer);
*data = buffer->data;
@ -42,7 +43,7 @@ static bool buffer_get_data_ptr(struct wlr_buffer *wlr_buffer, void **data,
static const struct wlr_buffer_impl buffer_impl = {
.destroy = buffer_destroy,
.get_shm = buffer_get_shm,
.get_data_ptr = buffer_get_data_ptr,
.get_data_ptr = shm_buffer_get_data_ptr,
};
static struct wlr_buffer *allocator_create_buffer(
@ -103,7 +104,8 @@ struct wlr_allocator *wlr_shm_allocator_create(void) {
if (allocator == NULL) {
return NULL;
}
wlr_allocator_init(&allocator->base, &allocator_impl);
wlr_allocator_init(&allocator->base, &allocator_impl,
WLR_BUFFER_CAP_DATA_PTR | WLR_BUFFER_CAP_SHM);
wlr_log(WLR_DEBUG, "Created shm allocator");
return &allocator->base;