render: introduce wlr_texture_from_buffer

This adds a a function to create a wlr_texture from a wlr_buffer.

The main motivation for this is to allow the renderer to create a
single wlr_texture per wlr_buffer. This can avoid needless imports
by re-using existing textures.
This commit is contained in:
Simon Ser 2021-04-12 18:38:13 +02:00
parent 9221ed7b4c
commit 9d55f712e3
3 changed files with 27 additions and 0 deletions

View File

@ -0,0 +1,15 @@
#ifndef RENDER_WLR_TEXTURE_H
#define RENDER_WLR_TEXTURE_H
#include <wlr/render/wlr_texture.h>
/**
* Create a new texture from a buffer.
*
* Should not be called in a rendering block like renderer_begin()/end() or
* between attaching a renderer to an output and committing it.
*/
struct wlr_texture *wlr_texture_from_buffer(struct wlr_renderer *renderer,
struct wlr_buffer *buffer);
#endif

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@ -57,6 +57,8 @@ struct wlr_renderer_impl {
struct wl_display *wl_display);
int (*get_drm_fd)(struct wlr_renderer *renderer);
uint32_t (*get_render_buffer_caps)(void);
struct wlr_texture *(*texture_from_buffer)(struct wlr_renderer *renderer,
struct wlr_buffer *buffer);
};
void wlr_renderer_init(struct wlr_renderer *renderer,

View File

@ -3,6 +3,7 @@
#include <stdlib.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_texture.h>
#include "render/wlr_texture.h"
void wlr_texture_init(struct wlr_texture *texture,
const struct wlr_texture_impl *impl, uint32_t width, uint32_t height) {
@ -46,6 +47,15 @@ struct wlr_texture *wlr_texture_from_dmabuf(struct wlr_renderer *renderer,
return renderer->impl->texture_from_dmabuf(renderer, attribs);
}
struct wlr_texture *wlr_texture_from_buffer(struct wlr_renderer *renderer,
struct wlr_buffer *buffer) {
assert(!renderer->rendering);
if (!renderer->impl->texture_from_buffer) {
return NULL;
}
return renderer->impl->texture_from_buffer(renderer, buffer);
}
bool wlr_texture_is_opaque(struct wlr_texture *texture) {
if (!texture->impl->is_opaque) {
return false;