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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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[574/906] memory: implement transperent upload/download for data
(not async yet)
This commit is contained in:
Matthew Waters
parent
88cb7e3060
commit
5d1395f435
2 changed files with 182 additions and 20 deletions
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@ -26,9 +26,8 @@
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#include "gstglmemory.h"
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/*GST_DEBUG_CATEGORY_STATIC (GST_CAT_GL_MEMORY);
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_GL_MEMORY);
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#define GST_CAT_DEFUALT GST_CAT_GL_MEMORY
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_MEMORY);*/
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static GstAllocator *_gl_allocator;
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@ -40,23 +39,38 @@ typedef struct
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static void
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_gl_mem_init (GstGLMemory * mem, GstAllocator * allocator, GstMemory * parent,
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GstGLDisplay * display, GstVideoFormat v_format, gsize width, gsize height)
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GstGLDisplay * display, GstVideoFormat v_format, gsize width, gsize height,
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gpointer user_data, GDestroyNotify notify)
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{
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gsize maxsize;
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GstVideoInfo info;
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gst_video_info_set_format (&info, v_format, width, height);
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maxsize = info.size;
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gst_memory_init (GST_MEMORY_CAST (mem), GST_MEMORY_FLAG_NO_SHARE,
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allocator, parent, 0, 0, 0, 0);
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allocator, parent, maxsize, 0, 0, maxsize);
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mem->display = g_object_ref (display);
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mem->gl_format = GL_RGBA;
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mem->v_format = v_format;
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mem->width = width;
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mem->height = height;
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mem->notify = notify;
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mem->user_data = user_data;
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mem->wrapped = FALSE;
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mem->upload = gst_gl_display_find_upload (display, v_format, width, height);
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mem->download =
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gst_gl_display_find_download (display, v_format, width, height);
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GST_DEBUG ("new GL memory");
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GST_DEBUG ("new GL texture memory");
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}
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static GstGLMemory *
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_gl_mem_new (GstAllocator * allocator, GstMemory * parent,
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GstGLDisplay * display, GstVideoFormat v_format, gsize width, gsize height)
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GstGLDisplay * display, GstVideoFormat v_format, gsize width, gsize height,
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gpointer user_data, GDestroyNotify notify)
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{
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GstGLMemory *mem;
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GLuint tex_id;
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@ -69,7 +83,8 @@ _gl_mem_new (GstAllocator * allocator, GstMemory * parent,
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GST_TRACE ("created texture %u", tex_id);
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mem = g_slice_alloc (sizeof (GstGLMemory));
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_gl_mem_init (mem, allocator, parent, display, v_format, width, height);
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_gl_mem_init (mem, allocator, parent, display, v_format, width, height,
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user_data, notify);
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mem->tex_id = tex_id;
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@ -79,13 +94,59 @@ _gl_mem_new (GstAllocator * allocator, GstMemory * parent,
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gpointer
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_gl_mem_map (GstGLMemory * gl_mem, gsize maxsize, GstMapFlags flags)
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{
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/* should we perform a {up,down}load? */
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return NULL;
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gpointer data;
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g_return_val_if_fail (maxsize == gl_mem->mem.maxsize, NULL);
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if ((flags & GST_MAP_GL) == GST_MAP_GL) {
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if ((flags & GST_MAP_READ) == GST_MAP_READ) {
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if (GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD)) {
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if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem,
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GST_GL_MEMORY_FLAG_UPLOAD_INITTED)) {
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gst_gl_upload_init_format (gl_mem->upload, gl_mem->v_format,
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gl_mem->width, gl_mem->height);
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GST_GL_MEMORY_FLAG_SET (gl_mem, GST_GL_MEMORY_FLAG_UPLOAD_INITTED);
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}
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gst_gl_upload_perform_with_memory (gl_mem->upload, gl_mem);
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}
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}
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data = &gl_mem->tex_id;
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} else { /* not GL */
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if ((flags & GST_MAP_READ) == GST_MAP_READ) {
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if (GST_GL_MEMORY_FLAG_IS_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_DOWNLOAD)) {
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if (!GST_GL_MEMORY_FLAG_IS_SET (gl_mem,
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GST_GL_MEMORY_FLAG_DOWNLOAD_INITTED)) {
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gst_gl_download_init_format (gl_mem->download, gl_mem->v_format,
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gl_mem->width, gl_mem->height);
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GST_GL_MEMORY_FLAG_SET (gl_mem, GST_GL_MEMORY_FLAG_DOWNLOAD_INITTED);
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}
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gst_gl_download_perform_with_memory (gl_mem->download, gl_mem);
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}
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}
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data = gl_mem->data;
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}
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gl_mem->map_flags = flags;
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return data;
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}
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void
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_gl_mem_unmap (GstGLMemory * gl_mem)
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{
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if ((gl_mem->map_flags & GST_MAP_WRITE) == GST_MAP_WRITE) {
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if ((gl_mem->map_flags & GST_MAP_GL) == GST_MAP_GL) {
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GST_GL_MEMORY_FLAG_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_DOWNLOAD);
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} else {
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GST_GL_MEMORY_FLAG_SET (gl_mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD);
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}
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}
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gl_mem->map_flags = 0;
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}
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void
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@ -219,22 +280,21 @@ _gl_mem_copy (GstGLMemory * src, gssize offset, gssize size)
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dest = g_slice_alloc (sizeof (GstGLMemory));
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_gl_mem_init (dest, src->mem.allocator, NULL, src->display, src->v_format,
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src->width, src->height);
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src->width, src->height, NULL, NULL);
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if (!copy_params.tex_id)
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GST_WARNING ("Could not copy GL Memory");
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dest->tex_id = copy_params.tex_id;
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dest->data = g_malloc (src->mem.maxsize);
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if (dest->data == NULL) {
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gst_memory_unref ((GstMemory *) dest);
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return NULL;
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}
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return (GstMemory *) dest;
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}
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GstGLMemory *
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gst_gl_memory_copy (GstGLMemory * src)
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{
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return (GstGLMemory *) _gl_mem_copy (src, 0, 0);
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}
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GstMemory *
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_gl_mem_share (GstGLMemory * mem, gssize offset, gssize size)
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{
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@ -262,10 +322,19 @@ _gl_mem_free (GstAllocator * allocator, GstMemory * mem)
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{
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GstGLMemory *gl_mem = (GstGLMemory *) mem;
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gst_gl_display_del_texture (gl_mem->display, &gl_mem->tex_id);
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if (gl_mem->tex_id)
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gst_gl_display_del_texture (gl_mem->display, &gl_mem->tex_id);
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g_object_unref (gl_mem->display);
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if (gl_mem->notify)
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gl_mem->notify (gl_mem->user_data);
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if (gl_mem->data && !gl_mem->wrapped) {
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g_free (gl_mem->data);
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gl_mem->data = NULL;
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}
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g_slice_free (GstGLMemory, gl_mem);
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}
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@ -283,8 +352,49 @@ GstMemory *
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gst_gl_memory_alloc (GstGLDisplay * display, GstVideoFormat format,
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gsize width, gsize height)
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{
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return (GstMemory *) _gl_mem_new (_gl_allocator, NULL, display, format, width,
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height);
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GstGLMemory *mem;
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mem = _gl_mem_new (_gl_allocator, NULL, display, format, width, height,
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NULL, NULL);
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mem->data = g_malloc (mem->mem.maxsize);
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if (mem->data == NULL) {
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gst_memory_unref ((GstMemory *) mem);
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return NULL;
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}
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return (GstMemory *) mem;
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}
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/**
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* gst_gl_memory_wrapped
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* @display:a #GstGLDisplay
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* @format: the format for the texture
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* @width: width of the texture
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* @height: height of the texture
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* @data: the data to wrap
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* @user_data: data called with for @notify
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* @notify: function called with @user_data when @data needs to be freed
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*
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* Returns: a GstMemory object with a GL texture specified by @format, @width and @height
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* from @display and contents specified by @data
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*/
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GstGLMemory *
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gst_gl_memory_wrapped (GstGLDisplay * display, GstVideoFormat format,
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guint width, guint height, gpointer data,
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gpointer user_data, GDestroyNotify notify)
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{
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GstGLMemory *mem;
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mem = _gl_mem_new (_gl_allocator, NULL, display, format, width, height,
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user_data, notify);
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mem->data = data;
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mem->wrapped = TRUE;
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GST_GL_MEMORY_FLAG_SET (mem, GST_GL_MEMORY_FLAG_NEED_UPLOAD);
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return mem;
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}
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G_DEFINE_TYPE (GstGLAllocator, gst_gl_allocator, GST_TYPE_ALLOCATOR);
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@ -325,6 +435,8 @@ gst_gl_memory_init (void)
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static volatile gsize _init = 0;
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if (g_once_init_enter (&_init)) {
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GST_DEBUG_CATEGORY_INIT (GST_CAT_GL_MEMORY, "glmemory", 0, "OpenGL Memory");
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_gl_allocator = g_object_new (gst_gl_allocator_get_type (), NULL);
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gst_allocator_register (GST_GL_MEMORY_ALLOCATOR,
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@ -333,8 +445,14 @@ gst_gl_memory_init (void)
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}
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}
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/**
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* gst_is_gl_memory:
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* @mem:a #GstMemory
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*
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* Returns: whether the memory in @mem is a #GstGLMemory
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*/
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gboolean
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gst_is_gl_memory (GstMemory * mem)
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{
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return mem->allocator == _gl_allocator;
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return mem != NULL && mem->allocator == _gl_allocator;
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}
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@ -26,9 +26,14 @@
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#include <gst/gstallocator.h>
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#include "gstgldisplay.h"
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#include "gstgldownload.h"
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#include "gstglupload.h"
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G_BEGIN_DECLS
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typedef struct _GstGLUpload GstGLUpload;
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typedef struct _GstGLDownload GstGLDownload;
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#define GST_TYPE_GL_ALLOCATOR (gst_gl_allocator_get_type())
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GType gst_gl_allocator_get_type(void);
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@ -43,6 +48,25 @@ typedef struct _GstGLMemory GstGLMemory;
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typedef struct _GstGLAllocator GstGLAllocator;
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typedef struct _GstGLAllocatorClass GstGLAllocatorClass;
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typedef enum
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{
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GST_GL_MEMORY_FLAG_DOWNLOAD_INITTED = (GST_MEMORY_FLAG_LAST << 0),
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GST_GL_MEMORY_FLAG_UPLOAD_INITTED = (GST_MEMORY_FLAG_LAST << 1),
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GST_GL_MEMORY_FLAG_NEED_DOWNLOAD = (GST_MEMORY_FLAG_LAST << 2),
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GST_GL_MEMORY_FLAG_NEED_UPLOAD = (GST_MEMORY_FLAG_LAST << 3)
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} GstGLMemoryFlags;
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/**
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* GST_MAP_GL:
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*
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* Flag indicating that we should map the GL object instead of to system memory.
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*
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* Combining #GST_MAP_GL with #GST_MAP_WRITE has the same semantics as though
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* you are writing to OpenGL. Conversely, combining #GST_MAP_GL with
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* #GST_MAP_READ has the same semantics as though you are reading from OpenGL.
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*/
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#define GST_MAP_GL GST_MAP_FLAG_LAST << 1
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/**
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* GstGLMemory:
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* @mem: the parent object
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@ -64,15 +88,35 @@ struct _GstGLMemory
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GLenum gl_format;
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GLuint width;
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GLuint height;
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GstGLDownload *download;
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GLenum render_target;
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GstGLUpload *upload;
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GstMapFlags map_flags;
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gpointer data;
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gboolean wrapped;
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GDestroyNotify notify;
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gpointer user_data;
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};
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#define GST_GL_MEMORY_ALLOCATOR "GLMemory"
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#define GST_GL_MEMORY_FLAGS(mem) GST_MEMORY_FLAGS(mem)
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#define GST_GL_MEMORY_FLAG_IS_SET(mem,flag) GST_MEMORY_FLAG_IS_SET(mem,flag)
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#define GST_GL_MEMORY_FLAG_SET(mem,flag) GST_MINI_OBJECT_FLAG_SET(mem,flag)
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#define GST_GL_MEMORY_FLAG_UNSET(mem,flag) GST_MEMORY_FLAG_UNSET(mem,flag)
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void gst_gl_memory_init (void);
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GstMemory * gst_gl_memory_alloc (GstGLDisplay * display, GstVideoFormat format,
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gsize width, gsize height);
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GstGLMemory * gst_gl_memory_wrapped (GstGLDisplay * display, GstVideoFormat format,
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guint width, guint height, gpointer data,
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gpointer user_data, GDestroyNotify notify);
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gboolean gst_is_gl_memory (GstMemory * mem);
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struct _GstGLAllocator
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