|
 |
9ae3a8 |
From 3067d5947bd28c5c05ba8dc7c87b70edc6157a27 Mon Sep 17 00:00:00 2001
|
|
|
9ae3a8 |
From: Gerd Hoffmann <kraxel@redhat.com>
|
|
|
9ae3a8 |
Date: Fri, 20 Oct 2017 11:06:17 +0200
|
|
|
9ae3a8 |
Subject: [PATCH 2/7] vga: Add mechanism to force the use of a shadow surface
|
|
|
9ae3a8 |
|
|
|
9ae3a8 |
RH-Author: Gerd Hoffmann <kraxel@redhat.com>
|
|
|
9ae3a8 |
Message-id: <20171020110619.2541-10-kraxel@redhat.com>
|
|
|
9ae3a8 |
Patchwork-id: 77409
|
|
|
9ae3a8 |
O-Subject: [RHEL-7.5 qemu-kvm PATCH 09/11] vga: Add mechanism to force the use of a shadow surface
|
|
|
9ae3a8 |
Bugzilla: 1501295
|
|
|
9ae3a8 |
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
|
|
|
9ae3a8 |
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
|
|
|
9ae3a8 |
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
|
9ae3a8 |
|
|
|
9ae3a8 |
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
9ae3a8 |
|
|
|
9ae3a8 |
This prevents surface sharing which will be necessary to
|
|
|
9ae3a8 |
fix cirrus HW cursor support.
|
|
|
9ae3a8 |
|
|
|
9ae3a8 |
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
|
|
|
9ae3a8 |
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
|
|
|
9ae3a8 |
(cherry picked from commit 5508099397c480f1c3b4f14b0e64593ebe284b26)
|
|
|
9ae3a8 |
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
|
|
|
9ae3a8 |
---
|
|
|
9ae3a8 |
hw/display/vga.c | 17 +++++++++++++++--
|
|
|
9ae3a8 |
hw/display/vga_int.h | 1 +
|
|
|
9ae3a8 |
2 files changed, 16 insertions(+), 2 deletions(-)
|
|
|
9ae3a8 |
|
|
|
9ae3a8 |
diff --git a/hw/display/vga.c b/hw/display/vga.c
|
|
|
9ae3a8 |
index dda3f5f..a343a0a 100644
|
|
|
9ae3a8 |
--- a/hw/display/vga.c
|
|
|
9ae3a8 |
+++ b/hw/display/vga.c
|
|
|
9ae3a8 |
@@ -1510,6 +1510,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
|
|
|
9ae3a8 |
uint8_t *d;
|
|
|
9ae3a8 |
uint32_t v, addr1, addr;
|
|
|
9ae3a8 |
vga_draw_line_func *vga_draw_line;
|
|
|
9ae3a8 |
+ bool share_surface;
|
|
|
9ae3a8 |
#if defined(TARGET_WORDS_BIGENDIAN)
|
|
|
9ae3a8 |
static const bool big_endian_fb = true;
|
|
|
9ae3a8 |
#else
|
|
|
9ae3a8 |
@@ -1558,18 +1559,30 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
|
|
|
9ae3a8 |
}
|
|
|
9ae3a8 |
|
|
|
9ae3a8 |
depth = s->get_bpp(s);
|
|
|
9ae3a8 |
+
|
|
|
9ae3a8 |
+ share_surface = (!s->force_shadow) &&
|
|
|
9ae3a8 |
+ ( depth == 32 || (depth == 16 && !byteswap) );
|
|
|
9ae3a8 |
if (s->line_offset != s->last_line_offset ||
|
|
|
9ae3a8 |
disp_width != s->last_width ||
|
|
|
9ae3a8 |
height != s->last_height ||
|
|
|
9ae3a8 |
- s->last_depth != depth) {
|
|
|
9ae3a8 |
- if (depth == 32 || (depth == 16 && !byteswap)) {
|
|
|
9ae3a8 |
+ s->last_depth != depth ||
|
|
|
9ae3a8 |
+ share_surface != is_buffer_shared(surface)) {
|
|
|
9ae3a8 |
+ if (share_surface) {
|
|
|
9ae3a8 |
surface = qemu_create_displaysurface_from(disp_width,
|
|
|
9ae3a8 |
height, depth, s->line_offset,
|
|
|
9ae3a8 |
s->vram_ptr + (s->start_addr * 4), byteswap);
|
|
|
9ae3a8 |
dpy_gfx_replace_surface(s->con, surface);
|
|
|
9ae3a8 |
+#ifdef DEBUG_VGA
|
|
|
9ae3a8 |
+ printf("VGA: Using shared surface for depth=%d swap=%d\n",
|
|
|
9ae3a8 |
+ depth, byteswap);
|
|
|
9ae3a8 |
+#endif
|
|
|
9ae3a8 |
} else {
|
|
|
9ae3a8 |
qemu_console_resize(s->con, disp_width, height);
|
|
|
9ae3a8 |
surface = qemu_console_surface(s->con);
|
|
|
9ae3a8 |
+#ifdef DEBUG_VGA
|
|
|
9ae3a8 |
+ printf("VGA: Using shadow surface for depth=%d swap=%d\n",
|
|
|
9ae3a8 |
+ depth, byteswap);
|
|
|
9ae3a8 |
+#endif
|
|
|
9ae3a8 |
}
|
|
|
9ae3a8 |
s->last_scr_width = disp_width;
|
|
|
9ae3a8 |
s->last_scr_height = height;
|
|
|
9ae3a8 |
diff --git a/hw/display/vga_int.h b/hw/display/vga_int.h
|
|
|
9ae3a8 |
index 94add2f..5b9ca87 100644
|
|
|
9ae3a8 |
--- a/hw/display/vga_int.h
|
|
|
9ae3a8 |
+++ b/hw/display/vga_int.h
|
|
|
9ae3a8 |
@@ -149,6 +149,7 @@ typedef struct VGACommonState {
|
|
|
9ae3a8 |
uint32_t last_width, last_height; /* in chars or pixels */
|
|
|
9ae3a8 |
uint32_t last_scr_width, last_scr_height; /* in pixels */
|
|
|
9ae3a8 |
uint32_t last_depth; /* in bits */
|
|
|
9ae3a8 |
+ bool force_shadow;
|
|
|
9ae3a8 |
uint8_t cursor_start, cursor_end;
|
|
|
9ae3a8 |
bool cursor_visible_phase;
|
|
|
9ae3a8 |
int64_t cursor_blink_time;
|
|
|
9ae3a8 |
--
|
|
|
9ae3a8 |
1.8.3.1
|
|
|
9ae3a8 |
|