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/*
* This an unstable interface of wlroots. No guarantees are made regarding the
* future consistency of this API.
*/
#ifndef WLR_USE_UNSTABLE
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
#endif
#ifndef WLR_RENDER_WLR_TEXTURE_H
#define WLR_RENDER_WLR_TEXTURE_H
#include <pixman.h>
#include <stdint.h>
#include <wayland-server-core.h>
#include <wlr/render/dmabuf.h>
#include <wlr/util/box.h>
struct wlr_buffer;
struct wlr_renderer;
struct wlr_texture_impl;
struct wlr_texture {
const struct wlr_texture_impl *impl;
uint32_t width, height;
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);
uint32_t wlr_texture_preferred_read_format(struct wlr_texture *texture);
/**
* Create a new texture from raw pixel data. `stride` is in bytes. The returned
* texture is mutable.
*/
struct wlr_texture *wlr_texture_from_pixels(struct wlr_renderer *renderer,
uint32_t fmt, uint32_t stride, uint32_t width, uint32_t height,
const void *data);
/**
* Create a new texture from a DMA-BUF. The returned texture is immutable.
*/
struct wlr_texture *wlr_texture_from_dmabuf(struct wlr_renderer *renderer,
struct wlr_dmabuf_attributes *attribs);
/**
* Update a texture with a struct wlr_buffer's contents.
*
* The update might be rejected (in case the texture is immutable, the buffer
* has an unsupported type/format, etc), so callers must be prepared to fall
* back to re-creating the texture from scratch via wlr_texture_from_buffer().
*
* The damage can be used by the renderer as an optimization: only the supplied
* region needs to be updated.
*/
bool wlr_texture_update_from_buffer(struct wlr_texture *texture,
struct wlr_buffer *buffer, const pixman_region32_t *damage);
/**
* Destroys the texture.
*/
void wlr_texture_destroy(struct wlr_texture *texture);
/**
* Create a new texture from a buffer.
*/
struct wlr_texture *wlr_texture_from_buffer(struct wlr_renderer *renderer,
struct wlr_buffer *buffer);
#endif
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