From 9f4c601032d7a27e8856517a1a020c9988667ed3 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Wed, 5 Sep 2012 09:35:57 +0200 Subject: [PATCH] spice: add screen mirror Create a screen mirror, keep there a copy of the most recent update passed on to spice-server. Signed-off-by: Gerd Hoffmann --- ui/spice-display.c | 32 ++++++++++++++++++++++---------- ui/spice-display.h | 1 + 2 files changed, 23 insertions(+), 10 deletions(-) diff --git a/ui/spice-display.c b/ui/spice-display.c index 6f68f28..973cd53 100644 --- a/ui/spice-display.c +++ b/ui/spice-display.c @@ -171,8 +171,8 @@ static void qemu_spice_create_one_update(SimpleSpiceDisplay *ssd, QXLDrawable *drawable; QXLImage *image; QXLCommand *cmd; - uint8_t *src, *dst; - int by, bw, bh; + uint8_t *src, *mirror, *dst; + int by, bw, bh, offset, bytes; struct timespec time_space; trace_qemu_spice_create_update( @@ -216,19 +216,18 @@ static void qemu_spice_create_one_update(SimpleSpiceDisplay *ssd, image->bitmap.palette = 0; image->bitmap.format = SPICE_BITMAP_FMT_32BIT; - if (ssd->conv == NULL) { - PixelFormat dst = qemu_default_pixelformat(32); - ssd->conv = qemu_pf_conv_get(&dst, &ssd->ds->surface->pf); - assert(ssd->conv); - } - - src = ds_get_data(ssd->ds) + + 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++) { - qemu_pf_conv_run(ssd->conv, dst, src, bw); + 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; } @@ -243,6 +242,17 @@ static void qemu_spice_create_update(SimpleSpiceDisplay *ssd) if (qemu_spice_rect_is_empty(&ssd->dirty)) { 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); + } + qemu_spice_create_one_update(ssd, &ssd->dirty); memset(&ssd->dirty, 0, sizeof(ssd->dirty)); } @@ -358,6 +368,8 @@ void qemu_spice_display_resize(SimpleSpiceDisplay *ssd) 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; 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 3fcb6fe..dea41c1 100644 --- a/ui/spice-display.h +++ b/ui/spice-display.h @@ -72,6 +72,7 @@ typedef struct SimpleSpiceUpdate SimpleSpiceUpdate; struct SimpleSpiceDisplay { DisplayState *ds; + uint8_t *ds_mirror; void *buf; int bufsize; QXLWorker *worker; -- 1.7.12.1