vo_gpu: remove old window screenshot glue code and GL implementation

There is now a better way. Reading the font framebuffer was always a
hack. The new code via VOCTRL_SCREENSHOT renders it into a FBO, which
does not come with the disadvantages of reading the front buffer (like
not being supported by GLES, possibly black regions due to overlapping
windows on some systems).

For now keep VOCTRL_SCREENSHOT_WIN on the VO level, because there are
still some lesser VOs and backends that use it.

1 files changed, 0 insertions, 3 deletions

diff --git a/video/out/gpu/context.h b/video/out/gpu/context.h
index 78c0441cdf..a2fcb3711a 100644
--- a/video/out/gpu/context.h
+++ b/video/out/gpu/context.h
@@ -69,9 +69,6 @@ struct ra_swapchain_fns {
     // Gets the current framebuffer depth in bits (0 if unknown). Optional.
     int (*color_depth)(struct ra_swapchain *sw);
 
-    // Retrieves a screenshot of the framebuffer. Optional.
-    struct mp_image *(*screenshot)(struct ra_swapchain *sw);
-
     // Called when rendering starts. Returns NULL on failure. This must be
     // followed by submit_frame, to submit the rendered frame. This function
     // can also fail sporadically, and such errors should be ignored unless