[Qemu-devel] [PATCH 5/7] spice: switch to pixman

[Gerd Hoffmann]

Switch over spice-display.c to use the pixman library
instead of the home-grown pflib bits.

Signed-off-by: Gerd Hoffmann <address@hidden>
---
 console.h          |    5 +++++
 qemu-pixman.c      |   13 +++++++++++++
 qemu-pixman.h      |    2 ++
 ui/spice-display.c |   51 ++++++++++++++++++++++-----------------------------
 ui/spice-display.h |    7 +++----
 5 files changed, 45 insertions(+), 33 deletions(-)

diff --git a/console.h b/console.h
index 33ad69b..a52a607 100644
--- a/console.h
+++ b/console.h
@@ -377,6 +377,11 @@ static inline pixman_format_code_t 
ds_get_format(DisplayState *ds)
     return ds->surface->format;
 }
 
+static inline pixman_image_t *ds_get_image(DisplayState *ds)
+{
+    return ds->surface->image;
+}
+
 #ifdef CONFIG_CURSES
 #include <curses.h>
 typedef chtype console_ch_t;
diff --git a/qemu-pixman.c b/qemu-pixman.c
index 7547ed7..71a9ea4 100644
--- a/qemu-pixman.c
+++ b/qemu-pixman.c
@@ -51,6 +51,19 @@ void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, 
pixman_image_t *fb,
                            0, y, 0, 0, 0, 0, width, 1);
 }
 
+pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
+                                          pixman_image_t *image)
+{
+    pixman_image_t *mirror;
+
+    mirror = pixman_image_create_bits(format,
+                                      pixman_image_get_width(image),
+                                      pixman_image_get_height(image),
+                                      NULL,
+                                      pixman_image_get_stride(image));
+    return mirror;
+}
+
 void qemu_pixman_image_unref(pixman_image_t *image)
 {
     if (image == NULL) {
diff --git a/qemu-pixman.h b/qemu-pixman.h
index 7652c41..e267d73 100644
--- a/qemu-pixman.h
+++ b/qemu-pixman.h
@@ -27,6 +27,8 @@ pixman_image_t 
*qemu_pixman_linebuf_create(pixman_format_code_t format,
                                            int width);
 void qemu_pixman_linebuf_fill(pixman_image_t *linebuf, pixman_image_t *fb,
                               int width, int y);
+pixman_image_t *qemu_pixman_mirror_create(pixman_format_code_t format,
+                                          pixman_image_t *image);
 void qemu_pixman_image_unref(pixman_image_t *image);
 
 #endif /* QEMU_PIXMAN_H */
diff --git a/ui/spice-display.c b/ui/spice-display.c
index fb99148..fe2fdfb 100644
--- a/ui/spice-display.c
+++ b/ui/spice-display.c
@@ -150,9 +150,9 @@ static void qemu_spice_create_one_update(SimpleSpiceDisplay 
*ssd,
     QXLDrawable *drawable;
     QXLImage *image;
     QXLCommand *cmd;
-    uint8_t *src, *mirror, *dst;
-    int by, bw, bh, offset, bytes;
+    int bw, bh;
     struct timespec time_space;
+    pixman_image_t *dest;
 
     trace_qemu_spice_create_update(
            rect->left, rect->right,
@@ -195,20 +195,15 @@ static void 
qemu_spice_create_one_update(SimpleSpiceDisplay *ssd,
     image->bitmap.palette = 0;
     image->bitmap.format = SPICE_BITMAP_FMT_32BIT;
 
-    offset =
-        rect->top * ds_get_linesize(ssd->ds) +
-        rect->left * ds_get_bytes_per_pixel(ssd->ds);
-    bytes = ds_get_bytes_per_pixel(ssd->ds) * bw;
-    src = ds_get_data(ssd->ds) + offset;
-    mirror = ssd->ds_mirror + offset;
-    dst = update->bitmap;
-    for (by = 0; by < bh; by++) {
-        memcpy(mirror, src, bytes);
-        qemu_pf_conv_run(ssd->conv, dst, mirror, bw);
-        src += ds_get_linesize(ssd->ds);
-        mirror += ds_get_linesize(ssd->ds);
-        dst += image->bitmap.stride;
-    }
+    dest = pixman_image_create_bits(PIXMAN_x8r8g8b8, bw, bh,
+                                    (void *)update->bitmap, bw * 4);
+    pixman_image_composite(PIXMAN_OP_SRC, ssd->surface, NULL, ssd->mirror,
+                           rect->left, rect->top, 0, 0,
+                           rect->left, rect->top, bw, bh);
+    pixman_image_composite(PIXMAN_OP_SRC, ssd->mirror, NULL, dest,
+                           rect->left, rect->top, 0, 0,
+                           0, 0, bw, bh);
+    pixman_image_unref(dest);
 
     cmd->type = QXL_CMD_DRAW;
     cmd->data = (uintptr_t)drawable;
@@ -229,14 +224,10 @@ static void qemu_spice_create_update(SimpleSpiceDisplay 
*ssd)
         return;
     };
 
-    if (ssd->conv == NULL) {
-        PixelFormat dst = qemu_default_pixelformat(32);
-        ssd->conv = qemu_pf_conv_get(&dst, &ssd->ds->surface->pf);
-        assert(ssd->conv);
-    }
-    if (ssd->ds_mirror == NULL) {
-        int size = ds_get_height(ssd->ds) * ds_get_linesize(ssd->ds);
-        ssd->ds_mirror = g_malloc0(size);
+    if (ssd->surface == NULL) {
+        ssd->surface = pixman_image_ref(ds_get_image(ssd->ds));
+        ssd->mirror  = qemu_pixman_mirror_create(ds_get_format(ssd->ds),
+                                                 ds_get_image(ssd->ds));
     }
 
     for (blk = 0; blk < blocks; blk++) {
@@ -244,7 +235,7 @@ static void qemu_spice_create_update(SimpleSpiceDisplay 
*ssd)
     }
 
     guest = ds_get_data(ssd->ds);
-    mirror = ssd->ds_mirror;
+    mirror = (void *)pixman_image_get_data(ssd->mirror);
     for (y = ssd->dirty.top; y < ssd->dirty.bottom; y++) {
         yoff = y * ds_get_linesize(ssd->ds);
         for (x = ssd->dirty.left; x < ssd->dirty.right; x += blksize) {
@@ -383,10 +374,12 @@ void qemu_spice_display_resize(SimpleSpiceDisplay *ssd)
     dprint(1, "%s:\n", __FUNCTION__);
 
     memset(&ssd->dirty, 0, sizeof(ssd->dirty));
-    qemu_pf_conv_put(ssd->conv);
-    ssd->conv = NULL;
-    g_free(ssd->ds_mirror);
-    ssd->ds_mirror = NULL;
+    if (ssd->surface) {
+        pixman_image_unref(ssd->surface);
+        ssd->surface = NULL;
+        pixman_image_unref(ssd->mirror);
+        ssd->mirror = NULL;
+    }
 
     qemu_mutex_lock(&ssd->lock);
     while ((update = QTAILQ_FIRST(&ssd->updates)) != NULL) {
diff --git a/ui/spice-display.h b/ui/spice-display.h
index d766927..38b6ea9 100644
--- a/ui/spice-display.h
+++ b/ui/spice-display.h
@@ -20,8 +20,7 @@
 #include <spice/qxl_dev.h>
 
 #include "qemu-thread.h"
-#include "console.h"
-#include "pflib.h"
+#include "qemu-pixman.h"
 #include "sysemu.h"
 
 #define NUM_MEMSLOTS 8
@@ -72,13 +71,13 @@ typedef struct SimpleSpiceUpdate SimpleSpiceUpdate;
 
 struct SimpleSpiceDisplay {
     DisplayState *ds;
-    uint8_t *ds_mirror;
     void *buf;
     int bufsize;
     QXLWorker *worker;
     QXLInstance qxl;
     uint32_t unique;
-    QemuPfConv *conv;
+    pixman_image_t *surface;
+    pixman_image_t *mirror;
     int32_t num_surfaces;
 
     QXLRect dirty;
-- 
1.7.1