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glmemory: add a default copy implementation

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Subclasses still need to override this to copy into the correct memory type.
This commit is contained in:
Matthew Waters 2015-12-16 18:36:13 +11:00
parent 7c90b0435d
commit 3aaec5b1d6
1 changed files with 56 additions and 1 deletions
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57
gst-libs/gst/gl/gstglmemory.c
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@ -625,7 +625,62 @@ _gl_tex_copy_thread (GstGLContext * context, gpointer data)
static GstMemory *
_default_gl_tex_copy (GstGLMemory * src, gssize offset, gssize size)
{
return NULL;
GstAllocationParams params = { 0, GST_MEMORY_CAST (src)->align, 0, 0 };
GstGLBaseMemoryAllocator *base_mem_allocator;
GstAllocator *allocator;
GstGLMemory *dest = NULL;
allocator = GST_MEMORY_CAST (src)->allocator;
base_mem_allocator = (GstGLBaseMemoryAllocator *) allocator;
if (src->tex_target == GST_GL_TEXTURE_TARGET_EXTERNAL_OES) {
GST_CAT_ERROR (GST_CAT_GL_MEMORY, "Cannot copy External OES textures");
return NULL;
}
/* If not doing a full copy, then copy to sysmem, the 2D represention of the
* texture would become wrong */
if (offset > 0 || size < GST_MEMORY_CAST (src)->size) {
return base_mem_allocator->fallback_mem_copy (GST_MEMORY_CAST (src), offset,
size);
}
dest = g_new0 (GstGLMemory, 1);
gst_gl_memory_init (dest, allocator, NULL, src->mem.context, src->tex_target,
&params, &src->info, src->plane, &src->valign, NULL, NULL);
if (GST_MEMORY_FLAG_IS_SET (src, GST_GL_BASE_MEMORY_TRANSFER_NEED_UPLOAD)) {
if (!gst_gl_base_memory_memcpy ((GstGLBaseMemory *) src,
(GstGLBaseMemory *) dest, offset, size)) {
GST_CAT_WARNING (GST_CAT_GL_MEMORY, "Could not copy GL Memory");
gst_memory_unref (GST_MEMORY_CAST (dest));
return NULL;
}
} else {
GstMapInfo dinfo;
if (!gst_memory_map (GST_MEMORY_CAST (dest), &dinfo,
GST_MAP_WRITE | GST_MAP_GL)) {
GST_CAT_WARNING (GST_CAT_GL_MEMORY,
"Failed not map destination " "for writing");
gst_memory_unref (GST_MEMORY_CAST (dest));
return NULL;
}
if (!gst_gl_memory_copy_into ((GstGLMemory *) src,
((GstGLMemory *) dest)->tex_id, src->tex_target,
src->tex_type, src->tex_width, GL_MEM_HEIGHT (src))) {
GST_CAT_WARNING (GST_CAT_GL_MEMORY, "Could not copy GL Memory");
gst_memory_unmap (GST_MEMORY_CAST (dest), &dinfo);
gst_memory_unref (GST_MEMORY_CAST (dest));
return NULL;
}
gst_memory_unmap (GST_MEMORY_CAST (dest), &dinfo);
}
return (GstMemory *) dest;
}
static GstMemory *