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glmemory: offset the data pointer for upload for GstVideoAlignment

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otherwise we attempt to read from the padding data
This commit is contained in:
Matthew Waters 2015-01-14 12:39:11 +11:00 committed by Tim-Philipp Müller
parent a2af67aef0
commit 19fbe2afbc
1 changed files with 23 additions and 8 deletions
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31
gst-libs/gst/gl/gstglmemory.c
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@ -389,6 +389,8 @@ _upload_memory (GstGLContext * context, GstGLMemory * gl_mem)
const GstGLFuncs *gl;
GLenum gl_format, gl_type;
gpointer data;
gsize plane_start;
gint i;
if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD)) {
return;
@ -413,11 +415,22 @@ _upload_memory (GstGLContext * context, GstGLMemory * gl_mem)
gl_mem->tex_id, gl_mem->transfer_pbo, gl_mem->tex_width,
GL_MEM_HEIGHT (gl_mem));
/* find the start of the plane data including padding */
plane_start = 0;
for (i = 0; i < gl_mem->plane; i++) {
plane_start +=
gst_gl_get_plane_data_size (&gl_mem->info, &gl_mem->valign, i);
}
/* offset between the plane data start and where the video frame starts */
data =
(void *) ((GST_VIDEO_INFO_PLANE_OFFSET (&gl_mem->info,
gl_mem->plane)) - plane_start);
if (gl_mem->transfer_pbo) {
gl->BindBuffer (GL_PIXEL_UNPACK_BUFFER, gl_mem->transfer_pbo);
data = NULL;
} else {
data = gl_mem->data;
data = (gpointer) ((gintptr) data + (gintptr) gl_mem->data);
}
gl->BindTexture (GL_TEXTURE_2D, gl_mem->tex_id);
@ -629,6 +642,14 @@ _gl_mem_init (GstGLMemory * mem, GstAllocator * allocator, GstMemory * parent,
g_return_if_fail (plane < GST_VIDEO_INFO_N_PLANES (info));
mem->info = *info;
if (valign)
mem->valign = *valign;
else
gst_video_alignment_reset (&mem->valign);
gst_video_info_align (&mem->info, &mem->valign);
maxsize = gst_gl_get_plane_data_size (info, valign, plane);
gst_memory_init (GST_MEMORY_CAST (mem), GST_MEMORY_FLAG_NO_SHARE,
@ -638,18 +659,12 @@ _gl_mem_init (GstGLMemory * mem, GstAllocator * allocator, GstMemory * parent,
mem->tex_type =
gst_gl_texture_type_from_format (context, GST_VIDEO_INFO_FORMAT (info),
plane);
mem->info = *info;
mem->plane = plane;
mem->notify = notify;
mem->user_data = user_data;
mem->data_wrapped = FALSE;
mem->texture_wrapped = FALSE;
if (valign)
mem->valign = *valign;
else
gst_video_alignment_reset (&mem->valign);
_calculate_unpack_length (mem);
GST_CAT_DEBUG (GST_CAT_GL_MEMORY, "new GL texture memory:%p format:%u "