diff options
| -rw-r--r-- | render/pixman/renderer.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/render/pixman/renderer.c b/render/pixman/renderer.c index 16541e50..3aa32f15 100644 --- a/render/pixman/renderer.c +++ b/render/pixman/renderer.c @@ -380,6 +380,34 @@ static uint32_t pixman_preferred_read_format( return get_drm_format_from_pixman(pixman_format); } +static bool pixman_read_pixels(struct wlr_renderer *wlr_renderer, + uint32_t drm_format, uint32_t *flags, uint32_t stride, + uint32_t width, uint32_t height, uint32_t src_x, uint32_t src_y, + uint32_t dst_x, uint32_t dst_y, void *data) { + struct wlr_pixman_renderer *renderer = get_renderer(wlr_renderer); + struct wlr_pixman_buffer *buffer = renderer->current_buffer; + + pixman_format_code_t fmt = get_pixman_format_from_drm(drm_format); + if (fmt == 0) { + wlr_log(WLR_ERROR, "Cannot read pixels: unsupported pixel format"); + return false; + } + + const struct wlr_pixel_format_info *drm_fmt = + drm_get_pixel_format_info(drm_format); + assert(drm_fmt); + + pixman_image_t *dst = pixman_image_create_bits_no_clear(fmt, width, height, + data, stride); + + pixman_image_composite32(PIXMAN_OP_SRC, buffer->image, NULL, dst, + src_x, src_y, 0, 0, dst_x, dst_y, width, height); + + pixman_image_unref(dst); + + return true; +} + static const struct wlr_renderer_impl renderer_impl = { .begin = pixman_begin, .clear = pixman_clear, @@ -392,6 +420,7 @@ static const struct wlr_renderer_impl renderer_impl = { .bind_buffer = pixman_bind_buffer, .destroy = pixman_destroy, .preferred_read_format = pixman_preferred_read_format, + .read_pixels = pixman_read_pixels, }; struct wlr_renderer *wlr_pixman_renderer_create(void) { |