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wlr_texture: Introduce wlr_texture_read_pixels_options helpers

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This commit is contained in:
Alexander Orzechowski 2023-11-30 19:55:51 -05:00
parent 4c6caa7c48
commit e85e8bc324
2 changed files with 32 additions and 0 deletions
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6
include/wlr/render/interface.h
View file

@ -93,4 +93,10 @@ float wlr_render_texture_options_get_alpha(const struct wlr_render_texture_optio
void wlr_render_rect_options_get_box(const struct wlr_render_rect_options *options,
const struct wlr_buffer *buffer, struct wlr_box *box);
void wlr_texture_read_pixels_options_get_src_box(
const struct wlr_texture_read_pixels_options *options,
const struct wlr_texture *texture, struct wlr_box *box);
void *wlr_texture_read_pixel_options_get_data(
const struct wlr_texture_read_pixels_options *options);
#endif

26
render/wlr_texture.c
View file

@ -4,6 +4,7 @@
#include <string.h>
#include <wlr/render/interface.h>
#include <wlr/render/wlr_texture.h>
#include "render/pixel_format.h"
#include "types/wlr_buffer.h"
void wlr_texture_init(struct wlr_texture *texture, struct wlr_renderer *renderer,
@ -26,6 +27,31 @@ void wlr_texture_destroy(struct wlr_texture *texture) {
}
}
void wlr_texture_read_pixels_options_get_src_box(
const struct wlr_texture_read_pixels_options *options,
const struct wlr_texture *texture, struct wlr_box *box) {
if (wlr_box_empty(&options->src_box)) {
*box = (struct wlr_box){
.x = 0,
.y = 0,
.width = texture->width,
.height = texture->height,
};
return;
}
*box = options->src_box;
}
void *wlr_texture_read_pixel_options_get_data(
const struct wlr_texture_read_pixels_options *options) {
const struct wlr_pixel_format_info *fmt = drm_get_pixel_format_info(options->format);
return (char *)options->data +
pixel_format_info_min_stride(fmt, options->dst_x) +
options->dst_y * options->stride;
}
bool wlr_texture_read_pixels(struct wlr_texture *texture,
const struct wlr_texture_read_pixels_options *options) {
if (!texture->impl->read_pixels) {