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