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wlr_texture: Introduce wlr_texture_read_pixels

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This commit is contained in:
Alexander Orzechowski 2023-11-30 19:55:12 -05:00
parent a165261f7f
commit 4c6caa7c48
3 changed files with 28 additions and 0 deletions
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2
include/wlr/render/interface.h
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@ -52,6 +52,8 @@ void wlr_renderer_init(struct wlr_renderer *renderer,
struct wlr_texture_impl {
bool (*update_from_buffer)(struct wlr_texture *texture,
struct wlr_buffer *buffer, const pixman_region32_t *damage);
bool (*read_pixels)(struct wlr_texture *texture,
const struct wlr_texture_read_pixels_options *options);
void (*destroy)(struct wlr_texture *texture);
};

17
include/wlr/render/wlr_texture.h
View file

@ -13,6 +13,7 @@
#include <stdint.h>
#include <wayland-server-core.h>
#include <wlr/render/dmabuf.h>
#include <wlr/util/box.h>
struct wlr_buffer;
struct wlr_renderer;
@ -25,6 +26,22 @@ struct wlr_texture {
struct wlr_renderer *renderer;
};
struct wlr_texture_read_pixels_options {
/** Memory location to read pixels into */
void *data;
/** Format used for writing the pixel data */
uint32_t format;
/** Stride in bytes for the data */
uint32_t stride;
/** Destination offsets */
uint32_t dst_x, dst_y;
/** Source box of the texture to read from. If empty, the full texture is assumed. */
const struct wlr_box src_box;
};
bool wlr_texture_read_pixels(struct wlr_texture *texture,
const struct wlr_texture_read_pixels_options *options);
/**
* Create a new texture from raw pixel data. `stride` is in bytes. The returned
* texture is mutable.