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render/pixman: Implement texture_read_pixels

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Alexander Orzechowski 2023-11-30 19:56:17 -05:00
parent e85e8bc324
commit 01bd098166
1 changed files with 27 additions and 0 deletions
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27
render/pixman/renderer.c
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@ -89,7 +89,34 @@ static void texture_destroy(struct wlr_texture *wlr_texture) {
free(texture); free(texture);
} }
static bool texture_read_pixels(struct wlr_texture *wlr_texture,
const struct wlr_texture_read_pixels_options *options) {
struct wlr_pixman_texture *texture = get_texture(wlr_texture);
struct wlr_box src;
wlr_texture_read_pixels_options_get_src_box(options, wlr_texture, &src);
pixman_format_code_t fmt = get_pixman_format_from_drm(options->format);
if (fmt == 0) {
wlr_log(WLR_ERROR, "Cannot read pixels: unsupported pixel format");
return false;
}
void *p = wlr_texture_read_pixel_options_get_data(options);
pixman_image_t *dst = pixman_image_create_bits_no_clear(fmt,
src.width, src.height, p, options->stride);
pixman_image_composite32(PIXMAN_OP_SRC, texture->image, NULL, dst,
src.x, src.y, 0, 0, 0, 0, src.width, src.height);
pixman_image_unref(dst);
return true;
}
static const struct wlr_texture_impl texture_impl = { static const struct wlr_texture_impl texture_impl = {
.read_pixels = texture_read_pixels,
.destroy = texture_destroy, .destroy = texture_destroy,
}; };