71 lines
1.9 KiB
C
71 lines
1.9 KiB
C
#include <assert.h>
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#include <stdlib.h>
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#include <wlr/interfaces/wlr_buffer.h>
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#include <wlr/util/log.h>
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#include "types/wlr_buffer.h"
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static const struct wlr_buffer_impl dmabuf_buffer_impl;
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static struct wlr_dmabuf_buffer *dmabuf_buffer_from_buffer(
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struct wlr_buffer *wlr_buffer) {
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assert(wlr_buffer->impl == &dmabuf_buffer_impl);
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struct wlr_dmabuf_buffer *buffer = wl_container_of(wlr_buffer, buffer, base);
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return buffer;
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}
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static void dmabuf_buffer_destroy(struct wlr_buffer *wlr_buffer) {
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struct wlr_dmabuf_buffer *buffer = dmabuf_buffer_from_buffer(wlr_buffer);
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if (buffer->saved) {
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wlr_dmabuf_attributes_finish(&buffer->dmabuf);
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}
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free(buffer);
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}
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static bool dmabuf_buffer_get_dmabuf(struct wlr_buffer *wlr_buffer,
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struct wlr_dmabuf_attributes *dmabuf) {
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struct wlr_dmabuf_buffer *buffer = dmabuf_buffer_from_buffer(wlr_buffer);
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if (buffer->dmabuf.n_planes == 0) {
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return false;
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}
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*dmabuf = buffer->dmabuf;
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return true;
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}
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static const struct wlr_buffer_impl dmabuf_buffer_impl = {
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.destroy = dmabuf_buffer_destroy,
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.get_dmabuf = dmabuf_buffer_get_dmabuf,
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};
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struct wlr_dmabuf_buffer *dmabuf_buffer_create(
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struct wlr_dmabuf_attributes *dmabuf) {
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struct wlr_dmabuf_buffer *buffer = calloc(1, sizeof(*buffer));
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if (buffer == NULL) {
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return NULL;
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}
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wlr_buffer_init(&buffer->base, &dmabuf_buffer_impl,
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dmabuf->width, dmabuf->height);
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buffer->dmabuf = *dmabuf;
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return buffer;
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}
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bool dmabuf_buffer_drop(struct wlr_dmabuf_buffer *buffer) {
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bool ok = true;
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if (buffer->base.n_locks > 0) {
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struct wlr_dmabuf_attributes saved_dmabuf = {0};
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if (!wlr_dmabuf_attributes_copy(&saved_dmabuf, &buffer->dmabuf)) {
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wlr_log(WLR_ERROR, "Failed to save DMA-BUF");
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ok = false;
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buffer->dmabuf = (struct wlr_dmabuf_attributes){0};
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} else {
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buffer->dmabuf = saved_dmabuf;
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buffer->saved = true;
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}
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}
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wlr_buffer_drop(&buffer->base);
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return ok;
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}
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