mirror of
https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-02 03:45:58 +01:00
71fb55f3bf
Some opaque pixel formats (nv12, p010) require per-plane bytes_per_block info. However, it doesn't make sense to store them in wlr_pixel_format_info, as they will never be useful (currently, this info is used for shm, which doesn't have a concept of multi-planar buffers.) Let's define a separate array and function for determining whether a pixel format has alpha.
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
#include <assert.h>
|
|
#include <string.h>
|
|
#include <wlr/interfaces/wlr_buffer.h>
|
|
#include "render/pixel_format.h"
|
|
#include "types/wlr_buffer.h"
|
|
|
|
void wlr_buffer_init(struct wlr_buffer *buffer,
|
|
const struct wlr_buffer_impl *impl, int width, int height) {
|
|
assert(impl->destroy);
|
|
if (impl->begin_data_ptr_access || impl->end_data_ptr_access) {
|
|
assert(impl->begin_data_ptr_access && impl->end_data_ptr_access);
|
|
}
|
|
|
|
*buffer = (struct wlr_buffer){
|
|
.impl = impl,
|
|
.width = width,
|
|
.height = height,
|
|
};
|
|
wl_signal_init(&buffer->events.destroy);
|
|
wl_signal_init(&buffer->events.release);
|
|
wlr_addon_set_init(&buffer->addons);
|
|
}
|
|
|
|
static void buffer_consider_destroy(struct wlr_buffer *buffer) {
|
|
if (!buffer->dropped || buffer->n_locks > 0) {
|
|
return;
|
|
}
|
|
|
|
assert(!buffer->accessing_data_ptr);
|
|
|
|
wl_signal_emit_mutable(&buffer->events.destroy, NULL);
|
|
wlr_addon_set_finish(&buffer->addons);
|
|
|
|
buffer->impl->destroy(buffer);
|
|
}
|
|
|
|
void wlr_buffer_drop(struct wlr_buffer *buffer) {
|
|
if (buffer == NULL) {
|
|
return;
|
|
}
|
|
|
|
assert(!buffer->dropped);
|
|
buffer->dropped = true;
|
|
buffer_consider_destroy(buffer);
|
|
}
|
|
|
|
struct wlr_buffer *wlr_buffer_lock(struct wlr_buffer *buffer) {
|
|
buffer->n_locks++;
|
|
return buffer;
|
|
}
|
|
|
|
void wlr_buffer_unlock(struct wlr_buffer *buffer) {
|
|
if (buffer == NULL) {
|
|
return;
|
|
}
|
|
|
|
assert(buffer->n_locks > 0);
|
|
buffer->n_locks--;
|
|
|
|
if (buffer->n_locks == 0) {
|
|
wl_signal_emit_mutable(&buffer->events.release, NULL);
|
|
}
|
|
|
|
buffer_consider_destroy(buffer);
|
|
}
|
|
|
|
bool wlr_buffer_get_dmabuf(struct wlr_buffer *buffer,
|
|
struct wlr_dmabuf_attributes *attribs) {
|
|
if (!buffer->impl->get_dmabuf) {
|
|
return false;
|
|
}
|
|
return buffer->impl->get_dmabuf(buffer, attribs);
|
|
}
|
|
|
|
bool wlr_buffer_begin_data_ptr_access(struct wlr_buffer *buffer, uint32_t flags,
|
|
void **data, uint32_t *format, size_t *stride) {
|
|
assert(!buffer->accessing_data_ptr);
|
|
if (!buffer->impl->begin_data_ptr_access) {
|
|
return false;
|
|
}
|
|
if (!buffer->impl->begin_data_ptr_access(buffer, flags, data, format, stride)) {
|
|
return false;
|
|
}
|
|
buffer->accessing_data_ptr = true;
|
|
return true;
|
|
}
|
|
|
|
void wlr_buffer_end_data_ptr_access(struct wlr_buffer *buffer) {
|
|
assert(buffer->accessing_data_ptr);
|
|
buffer->impl->end_data_ptr_access(buffer);
|
|
buffer->accessing_data_ptr = false;
|
|
}
|
|
|
|
bool wlr_buffer_get_shm(struct wlr_buffer *buffer,
|
|
struct wlr_shm_attributes *attribs) {
|
|
if (!buffer->impl->get_shm) {
|
|
return false;
|
|
}
|
|
return buffer->impl->get_shm(buffer, attribs);
|
|
}
|
|
|
|
bool buffer_is_opaque(struct wlr_buffer *buffer) {
|
|
void *data;
|
|
uint32_t format;
|
|
size_t stride;
|
|
struct wlr_dmabuf_attributes dmabuf;
|
|
struct wlr_shm_attributes shm;
|
|
if (wlr_buffer_get_dmabuf(buffer, &dmabuf)) {
|
|
format = dmabuf.format;
|
|
} else if (wlr_buffer_get_shm(buffer, &shm)) {
|
|
format = shm.format;
|
|
} else if (wlr_buffer_begin_data_ptr_access(buffer,
|
|
WLR_BUFFER_DATA_PTR_ACCESS_READ, &data, &format, &stride)) {
|
|
wlr_buffer_end_data_ptr_access(buffer);
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
return !pixel_format_has_alpha(format);
|
|
}
|