[PATCH spice-server 2/2] Use only one algorithm for choosing image compression

[Pavel Grunt <pgrunt@xxxxxxxxxx>]

It is possible to use red_compress_image() instead of having similar
checks for image compression in red_marshall_image().
---
 server/red_worker.c | 56 ++++-------------------------------------------------
 1 file changed, 4 insertions(+), 52 deletions(-)

diff --git a/server/red_worker.c b/server/red_worker.c
index 3a305d8..9e16f73 100644
--- a/server/red_worker.c
+++ b/server/red_worker.c
@@ -8815,9 +8815,6 @@ static void red_marshall_image(RedChannelClient *rcc, SpiceMarshaller *m, ImageI
     SpiceChunks *chunks;
     QRegion *surface_lossy_region;
     int comp_succeeded;
-    int lossy_comp = FALSE;
-    int lz_comp = FALSE;
-    spice_image_compression_t comp_mode;
     SpiceMsgDisplayDrawCopy copy;
     SpiceMarshaller *src_bitmap_out, *mask_bitmap_out;
     SpiceMarshaller *bitmap_palette_out, *lzplt_palette_out;
@@ -8870,54 +8867,8 @@ static void red_marshall_image(RedChannelClient *rcc, SpiceMarshaller *m, ImageI
                                          &src_bitmap_out, &mask_bitmap_out);
 
     compress_send_data_t comp_send_data = {0};
-
-    comp_mode = display_channel->common.worker->image_compression;
-
-    if (((comp_mode == SPICE_IMAGE_COMPRESS_AUTO_LZ) ||
-        (comp_mode == SPICE_IMAGE_COMPRESS_AUTO_GLZ)) && !_stride_is_extra(&bitmap)) {
-
-        if (BITMAP_FMT_HAS_GRADUALITY(item->image_format)) {
-            BitmapGradualType grad_level;
-
-            grad_level = _get_bitmap_graduality_level(display_channel->common.worker,
-                                                      &bitmap,
-                                                      worker->mem_slots.internal_groupslot_id);
-            if (grad_level == BITMAP_GRADUAL_HIGH) {
-                // if we use lz for alpha, the stride can't be extra
-                lossy_comp = display_channel->enable_jpeg && item->can_lossy;
-            } else {
-                lz_comp = TRUE;
-            }
-        } else {
-            lz_comp = TRUE;
-        }
-    }
-
-    if (lossy_comp) {
-        comp_succeeded = red_jpeg_compress_image(dcc, &red_image,
-                                                 &bitmap, &comp_send_data,
-                                                 worker->mem_slots.internal_groupslot_id);
-    } else {
-        if (!lz_comp) {
-            comp_succeeded = red_quic_compress_image(dcc, &red_image, &bitmap,
-                                                     &comp_send_data,
-                                                     worker->mem_slots.internal_groupslot_id);
-        } else {
-#ifdef USE_LZ4
-            if (comp_mode == SPICE_IMAGE_COMPRESS_LZ4 &&
-                bitmap_fmt_is_rgb(bitmap.format) &&
-                red_channel_client_test_remote_cap(&dcc->common.base,
-                        SPICE_DISPLAY_CAP_LZ4_COMPRESSION)) {
-                comp_succeeded = red_lz4_compress_image(dcc, &red_image, &bitmap,
-                                                        &comp_send_data,
-                                                        worker->mem_slots.internal_groupslot_id);
-            } else
-#endif
-                comp_succeeded = red_lz_compress_image(dcc, &red_image, &bitmap,
-                                                       &comp_send_data,
-                                                       worker->mem_slots.internal_groupslot_id);
-        }
-    }
+    comp_succeeded = red_compress_image(dcc, &red_image, &bitmap, NULL, item->can_lossy,
+                                        &comp_send_data);
 
     surface_lossy_region = &dcc->surface_client_lossy_region[item->surface_id];
     if (comp_succeeded) {
@@ -8931,7 +8882,8 @@ static void red_marshall_image(RedChannelClient *rcc, SpiceMarshaller *m, ImageI
             spice_marshall_Palette(lzplt_palette_out, comp_send_data.lzplt_palette);
         }
 
-        if (lossy_comp) {
+        if (red_image.descriptor.type == SPICE_IMAGE_TYPE_JPEG ||
+            red_image.descriptor.type == SPICE_IMAGE_TYPE_JPEG_ALPHA) {
             region_add(surface_lossy_region, &copy.base.box);
         } else {
             region_remove(surface_lossy_region, &copy.base.box);
-- 
2.4.4

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