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List: gstreamer-cvs
Subject: gst-plugins-bad: glmemory: Support offset when downloading
From: nicolasd () kemper ! freedesktop ! org (Nicolas Dufresne)
Date: 2015-02-28 20:02:32
Message-ID: 20150228200232.4AC7D762D6 () kemper ! freedesktop ! org
[Download RAW message or body]
Module: gst-plugins-bad
Branch: master
Commit: 04377cfc5e749c8c9bb22678aef5a33a8e167a76
URL: http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/commit/?id=04377cfc5e749c8c9bb22678aef5a33a8e167a76
Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
Date: Sat Feb 28 15:00:13 2015 -0500
glmemory: Support offset when downloading
Make sure we support offset and video alignment when downloading too.
This is currently not used (plane_start is always 0), but it makes
the code correct if we want to use that later.
---
gst-libs/gst/gl/gstglmemory.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/gst-libs/gst/gl/gstglmemory.c b/gst-libs/gst/gl/gstglmemory.c
index 0aca76a..e134d16 100644
--- a/gst-libs/gst/gl/gstglmemory.c
+++ b/gst-libs/gst/gl/gstglmemory.c
@@ -655,7 +655,7 @@ _download_memory (GstGLContext * context, GstGLMemory * gl_mem)
gl->GetTexImage (gl_mem->tex_target, 0, format, type, gl_mem->data);
gl->BindTexture (gl_mem->tex_target, 0);
} else if (gl_mem->transfer_pbo && CONTEXT_SUPPORTS_PBO_DOWNLOAD (context)) {
- gsize size;
+ gsize size, plane_start;
gpointer map_data = NULL;
size = gst_gl_get_plane_data_size (&gl_mem->info, &gl_mem->valign,
@@ -671,7 +671,8 @@ _download_memory (GstGLContext * context, GstGLMemory * gl_mem)
}
/* FIXME: COPY! use glMapBuffer + glSync everywhere to remove this */
- memcpy (gl_mem->data, map_data, size);
+ plane_start = _find_plane_frame_start (gl_mem);
+ memcpy ((guint8 *) gl_mem->data + plane_start, map_data, size);
gl->UnmapBuffer (GL_PIXEL_PACK_BUFFER);
gl->BindBuffer (GL_PIXEL_PACK_BUFFER, 0);
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