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