[Spice-devel] [PATCH 19/30] Encapsulate some data in dcc-encoders

Frediano Ziglio fziglio at redhat.com
Tue Jun 7 10:17:57 UTC 2016


Signed-off-by: Frediano Ziglio <fziglio at redhat.com>
---
 server/dcc-encoders.c    | 60 ++++++++++++++++++++++++++++++++++++++++++++++--
 server/dcc-encoders.h    | 33 ++------------------------
 server/display-channel.c | 13 +++--------
 server/display-channel.h |  5 ----
 4 files changed, 63 insertions(+), 48 deletions(-)

diff --git a/server/dcc-encoders.c b/server/dcc-encoders.c
index c0b9714..f583857 100644
--- a/server/dcc-encoders.c
+++ b/server/dcc-encoders.c
@@ -26,8 +26,45 @@
 
 #define ZLIB_DEFAULT_COMPRESSION_LEVEL 3
 
+#define MAX_GLZ_DRAWABLE_INSTANCES 2
+
+typedef struct GlzDrawableInstanceItem GlzDrawableInstanceItem;
+
+/* for each qxl drawable, there may be several instances of lz drawables */
+/* TODO - reuse this stuff for the top level. I just added a second level of multiplicity
+ * at the Drawable by keeping a ring, so:
+ * Drawable -> (ring of) RedGlzDrawable -> (up to 2) GlzDrawableInstanceItem
+ * and it should probably (but need to be sure...) be
+ * Drawable -> ring of GlzDrawableInstanceItem.
+ */
+struct GlzDrawableInstanceItem {
+    RingItem glz_link;
+    RingItem free_link;
+    GlzEncDictImageContext *context;
+    RedGlzDrawable         *glz_drawable;
+};
+
+struct RedGlzDrawable {
+    RingItem link;    // ordered by the time it was encoded
+    RingItem drawable_link;
+    RedDrawable *red_drawable;
+    struct Drawable    *drawable;
+    GlzDrawableInstanceItem instances_pool[MAX_GLZ_DRAWABLE_INSTANCES];
+    Ring instances;
+    uint8_t instances_count;
+    EncodersData *encoders;
+};
+
+#define LINK_TO_GLZ(ptr) SPICE_CONTAINEROF((ptr), RedGlzDrawable, \
+                                           drawable_link)
+#define DRAWABLE_FOREACH_GLZ_SAFE(drawable, link, next, glz) \
+    SAFE_FOREACH(link, next, drawable, &(drawable)->glz_ring, glz, LINK_TO_GLZ(link))
+
 static void dcc_free_glz_drawable_instance(EncodersData *enc,
                                            GlzDrawableInstanceItem *item);
+static void encoder_data_init(EncoderData *data);
+static void encoder_data_reset(EncoderData *data);
+
 
 static SPICE_GNUC_NORETURN SPICE_GNUC_PRINTF(2, 3) void
 quic_usr_error(QuicUsrContext *usr, const char *fmt, ...)
@@ -139,14 +176,14 @@ static void glz_usr_free(GlzEncoderUsrContext *usr, void *ptr)
     free(ptr);
 }
 
-void encoder_data_init(EncoderData *data)
+static void encoder_data_init(EncoderData *data)
 {
     data->bufs_tail = g_new(RedCompressBuf, 1);
     data->bufs_head = data->bufs_tail;
     data->bufs_head->send_next = NULL;
 }
 
-void encoder_data_reset(EncoderData *data)
+static void encoder_data_reset(EncoderData *data)
 {
     RedCompressBuf *buf = data->bufs_head;
     while (buf) {
@@ -572,6 +609,25 @@ void dcc_free_glz_drawables(EncodersData *enc)
     pthread_rwlock_unlock(&glz_dict->encode_lock);
 }
 
+void dcc_glz_free_from_drawable(struct Drawable *drawable)
+{
+    RingItem *glz_item, *next_item;
+    RedGlzDrawable *glz;
+    DRAWABLE_FOREACH_GLZ_SAFE(drawable, glz_item, next_item, glz) {
+        dcc_free_glz_drawable(glz->encoders, glz);
+    }
+}
+
+void dcc_glz_detach_from_drawable(struct Drawable *drawable)
+{
+    RingItem *item, *next;
+
+    RING_FOREACH_SAFE(item, next, &drawable->glz_ring) {
+        SPICE_CONTAINEROF(item, RedGlzDrawable, drawable_link)->drawable = NULL;
+        ring_remove(item);
+    }
+}
+
 void dcc_freeze_glz(EncodersData *enc)
 {
     pthread_rwlock_wrlock(&enc->glz_dict->encode_lock);
diff --git a/server/dcc-encoders.h b/server/dcc-encoders.h
index f98eac0..26d8d27 100644
--- a/server/dcc-encoders.h
+++ b/server/dcc-encoders.h
@@ -32,7 +32,6 @@
 #include "zlib-encoder.h"
 
 typedef struct RedCompressBuf RedCompressBuf;
-typedef struct GlzDrawableInstanceItem GlzDrawableInstanceItem;
 typedef struct RedGlzDrawable RedGlzDrawable;
 typedef struct EncodersData EncodersData;
 
@@ -45,6 +44,8 @@ void dcc_free_glz_drawables_to_free(EncodersData* enc);
 gboolean dcc_glz_encoder_create(EncodersData *enc, uint8_t id);
 void dcc_freeze_glz(EncodersData *enc);
 void dcc_release_glz(EncodersData *enc);
+void dcc_glz_free_from_drawable(struct Drawable *drawable);
+void dcc_glz_detach_from_drawable(struct Drawable *drawable);
 
 #define RED_COMPRESS_BUF_SIZE (1024 * 64)
 struct RedCompressBuf {
@@ -101,9 +102,6 @@ typedef struct  {
     char message_buf[512];
 } EncoderData;
 
-void encoder_data_init(EncoderData *data);
-void encoder_data_reset(EncoderData *data);
-
 typedef struct {
     QuicUsrContext usr;
     EncoderData data;
@@ -136,33 +134,6 @@ typedef struct {
     EncoderData data;
 } GlzData;
 
-#define MAX_GLZ_DRAWABLE_INSTANCES 2
-
-/* for each qxl drawable, there may be several instances of lz drawables */
-/* TODO - reuse this stuff for the top level. I just added a second level of multiplicity
- * at the Drawable by keeping a ring, so:
- * Drawable -> (ring of) RedGlzDrawable -> (up to 2) GlzDrawableInstanceItem
- * and it should probably (but need to be sure...) be
- * Drawable -> ring of GlzDrawableInstanceItem.
- */
-struct GlzDrawableInstanceItem {
-    RingItem glz_link;
-    RingItem free_link;
-    GlzEncDictImageContext *context;
-    RedGlzDrawable         *glz_drawable;
-};
-
-struct RedGlzDrawable {
-    RingItem link;    // ordered by the time it was encoded
-    RingItem drawable_link;
-    RedDrawable *red_drawable;
-    Drawable    *drawable;
-    GlzDrawableInstanceItem instances_pool[MAX_GLZ_DRAWABLE_INSTANCES];
-    Ring instances;
-    uint8_t instances_count;
-    EncodersData *encoders;
-};
-
 struct EncodersData {
     QuicData quic_data;
     QuicContext *quic;
diff --git a/server/display-channel.c b/server/display-channel.c
index 6b6b542..60337b1 100644
--- a/server/display-channel.c
+++ b/server/display-channel.c
@@ -1230,11 +1230,7 @@ static bool free_one_drawable(DisplayChannel *display, int force_glz_free)
 
     drawable = SPICE_CONTAINEROF(ring_item, Drawable, list_link);
     if (force_glz_free) {
-        RingItem *glz_item, *next_item;
-        RedGlzDrawable *glz;
-        DRAWABLE_FOREACH_GLZ_SAFE(drawable, glz_item, next_item, glz) {
-            dcc_free_glz_drawable(glz->encoders, glz);
-        }
+        dcc_glz_free_from_drawable(drawable);
     }
     drawable_draw(display, drawable);
     container = drawable->tree_item.base.container;
@@ -1386,7 +1382,6 @@ static void drawable_unref_surface_deps(DisplayChannel *display, Drawable *drawa
 void drawable_unref(Drawable *drawable)
 {
     DisplayChannel *display = drawable->display;
-    RingItem *item, *next;
 
     if (--drawable->refs != 0)
         return;
@@ -1403,10 +1398,8 @@ void drawable_unref(Drawable *drawable)
     drawable_unref_surface_deps(display, drawable);
     display_channel_surface_unref(display, drawable->surface_id);
 
-    RING_FOREACH_SAFE(item, next, &drawable->glz_ring) {
-        SPICE_CONTAINEROF(item, RedGlzDrawable, drawable_link)->drawable = NULL;
-        ring_remove(item);
-    }
+    dcc_glz_detach_from_drawable(drawable);
+
     if (drawable->red_drawable) {
         red_drawable_unref(drawable->red_drawable);
     }
diff --git a/server/display-channel.h b/server/display-channel.h
index 45032cb..a2e0473 100644
--- a/server/display-channel.h
+++ b/server/display-channel.h
@@ -88,11 +88,6 @@ void drawable_unref (Drawable *drawable);
 #define DRAWABLE_FOREACH_DPI_SAFE(drawable, link, next, dpi)            \
     SAFE_FOREACH(link, next, drawable,  &(drawable)->pipes, dpi, LINK_TO_DPI(link))
 
-#define LINK_TO_GLZ(ptr) SPICE_CONTAINEROF((ptr), RedGlzDrawable, \
-                                           drawable_link)
-#define DRAWABLE_FOREACH_GLZ_SAFE(drawable, link, next, glz) \
-    SAFE_FOREACH(link, next, drawable, &(drawable)->glz_ring, glz, LINK_TO_GLZ(link))
-
 enum {
     RED_PIPE_ITEM_TYPE_DRAW = RED_PIPE_ITEM_TYPE_COMMON_LAST,
     RED_PIPE_ITEM_TYPE_IMAGE,
-- 
2.7.4



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