mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-19 23:06:49 +00:00
Code Issues 1 Projects Releases Wiki Activity

glmemory: Use fallback for partial copy

Browse source 
When the memory is partial copy, the texture size and videoinfo no
longer make sense. As we cannot guess what the application wants, we
safely copy into a sysmem memory.

https://bugzilla.gnome.org/show_bug.cgi?id=744246
This commit is contained in:
Nicolas Dufresne 2015-02-28 11:55:26 -05:00 committed by Tim-Philipp Müller
parent de79830b05
commit 33050939ff
2 changed files with 19 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
gst-libs/gst/gl/gstglmemory.c
View file

@ -1038,12 +1038,18 @@ error:
static GstMemory *
_gl_mem_copy (GstGLMemory * src, gssize offset, gssize size)
{
GstGLMemory *dest;
GstGLAllocator *allocator = (GstGLAllocator *) src->mem.allocator;
GstMemory *ret = NULL;
g_mutex_lock (&((GstGLMemory *) src)->lock);
if (GST_GL_MEMORY_FLAG_IS_SET (src, GST_GL_MEMORY_FLAG_NEED_UPLOAD)) {
/* If not doing a full copy, then copy to sysmem, the 2D represention of the
* texture would become wrong */
if (offset > 0 || size < src->mem.size) {
ret = allocator->fallback_mem_copy (&src->mem, offset, size);
} else if (GST_GL_MEMORY_FLAG_IS_SET (src, GST_GL_MEMORY_FLAG_NEED_UPLOAD)) {
GstAllocationParams params = { 0, src->mem.align, 0, 0 };
GstGLMemory *dest;
dest = _gl_mem_new (src->mem.allocator, NULL, src->context, &params,
&src->info, &src->valign, src->plane, NULL, NULL);
@ -1057,9 +1063,11 @@ _gl_mem_copy (GstGLMemory * src, gssize offset, gssize size)
memcpy (dest->data, (guint8 *) src->data + src->mem.offset, src->mem.size);
GST_GL_MEMORY_FLAG_SET (dest, GST_GL_MEMORY_FLAG_NEED_UPLOAD);
ret = (GstMemory *) dest;
} else {
GstAllocationParams params = { 0, src->mem.align, 0, 0 };
GstGLMemoryCopyParams copy_params;
GstGLMemory *dest;
copy_params.src = src;
copy_params.tex_id = 0;
@ -1085,12 +1093,13 @@ _gl_mem_copy (GstGLMemory * src, gssize offset, gssize size)
dest->tex_target = copy_params.tex_target;
dest = _gl_mem_alloc_data (dest);
GST_GL_MEMORY_FLAG_SET (dest, GST_GL_MEMORY_FLAG_NEED_DOWNLOAD);
ret = (GstMemory *) dest;
}
done:
g_mutex_unlock (&((GstGLMemory *) src)->lock);
return (GstMemory *) dest;
return ret;
}
static GstMemory *
@ -1331,12 +1340,18 @@ gst_gl_allocator_init (GstGLAllocator * allocator)
{
GstAllocator *alloc = GST_ALLOCATOR_CAST (allocator);
/* Keep the fallback copy function around, we will need it when copying with
* at an offset or smaller size */
allocator->fallback_mem_copy = alloc->mem_copy;
alloc->mem_type = GST_GL_MEMORY_ALLOCATOR;
alloc->mem_map = (GstMemoryMapFunction) _gl_mem_map;
alloc->mem_unmap = (GstMemoryUnmapFunction) _gl_mem_unmap;
alloc->mem_copy = (GstMemoryCopyFunction) _gl_mem_copy;
alloc->mem_share = (GstMemoryShareFunction) _gl_mem_share;
alloc->mem_is_span = (GstMemoryIsSpanFunction) _gl_mem_is_span;
GST_OBJECT_FLAG_SET (allocator, GST_ALLOCATOR_FLAG_CUSTOM_ALLOC);
}
/**

1
gst-libs/gst/gl/gstglmemory.h
View file

@ -190,6 +190,7 @@ void gst_gl_memory_download_transfer (GstGLMemory * gl_mem);
struct _GstGLAllocator
{
GstAllocator parent;
GstMemoryCopyFunction fallback_mem_copy;
};
/**