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Diffstat (limited to 'hw/qxl-render.c')
-rw-r--r--hw/qxl-render.c170
1 files changed, 106 insertions, 64 deletions
diff --git a/hw/qxl-render.c b/hw/qxl-render.c
index 708414376e..25857f6a20 100644
--- a/hw/qxl-render.c
+++ b/hw/qxl-render.c
@@ -21,14 +21,31 @@
#include "qxl.h"
-static void qxl_flip(PCIQXLDevice *qxl, QXLRect *rect)
+static void qxl_blit(PCIQXLDevice *qxl, QXLRect *rect)
{
- uint8_t *src = qxl->guest_primary.data;
- uint8_t *dst = qxl->guest_primary.flipped;
+ uint8_t *src;
+ uint8_t *dst = qxl->vga.ds->surface->data;
int len, i;
- src += (qxl->guest_primary.surface.height - rect->top - 1) *
- qxl->guest_primary.abs_stride;
+ if (is_buffer_shared(qxl->vga.ds->surface)) {
+ return;
+ }
+ if (!qxl->guest_primary.data) {
+ dprint(qxl, 1, "%s: initializing guest_primary.data\n", __func__);
+ qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
+ }
+ dprint(qxl, 2, "%s: stride %d, [%d, %d, %d, %d]\n", __func__,
+ qxl->guest_primary.qxl_stride,
+ rect->left, rect->right, rect->top, rect->bottom);
+ src = qxl->guest_primary.data;
+ if (qxl->guest_primary.qxl_stride < 0) {
+ /* qxl surface is upside down, walk src scanlines
+ * in reverse order to flip it */
+ src += (qxl->guest_primary.surface.height - rect->top - 1) *
+ qxl->guest_primary.abs_stride;
+ } else {
+ src += rect->top * qxl->guest_primary.abs_stride;
+ }
dst += rect->top * qxl->guest_primary.abs_stride;
src += rect->left * qxl->guest_primary.bytes_pp;
dst += rect->left * qxl->guest_primary.bytes_pp;
@@ -37,7 +54,7 @@ static void qxl_flip(PCIQXLDevice *qxl, QXLRect *rect)
for (i = rect->top; i < rect->bottom; i++) {
memcpy(dst, src, len);
dst += qxl->guest_primary.abs_stride;
- src -= qxl->guest_primary.abs_stride;
+ src += qxl->guest_primary.qxl_stride;
}
}
@@ -71,84 +88,109 @@ void qxl_render_resize(PCIQXLDevice *qxl)
}
}
-void qxl_render_update(PCIQXLDevice *qxl)
+static void qxl_set_rect_to_surface(PCIQXLDevice *qxl, QXLRect *area)
+{
+ area->left = 0;
+ area->right = qxl->guest_primary.surface.width;
+ area->top = 0;
+ area->bottom = qxl->guest_primary.surface.height;
+}
+
+static void qxl_render_update_area_unlocked(PCIQXLDevice *qxl)
{
VGACommonState *vga = &qxl->vga;
- QXLRect dirty[32], update;
- void *ptr;
- int i, redraw = 0;
-
- if (!is_buffer_shared(vga->ds->surface)) {
- dprint(qxl, 1, "%s: restoring shared displaysurface\n", __func__);
- qxl->guest_primary.resized++;
- qxl->guest_primary.commands++;
- redraw = 1;
- }
+ int i;
+ DisplaySurface *surface = vga->ds->surface;
if (qxl->guest_primary.resized) {
qxl->guest_primary.resized = 0;
-
- if (qxl->guest_primary.flipped) {
- g_free(qxl->guest_primary.flipped);
- qxl->guest_primary.flipped = NULL;
- }
- qemu_free_displaysurface(vga->ds);
-
qxl->guest_primary.data = memory_region_get_ram_ptr(&qxl->vga.vram);
- if (qxl->guest_primary.qxl_stride < 0) {
- /* spice surface is upside down -> need extra buffer to flip */
- qxl->guest_primary.flipped =
- g_malloc(qxl->guest_primary.surface.width *
- qxl->guest_primary.abs_stride);
- ptr = qxl->guest_primary.flipped;
- } else {
- ptr = qxl->guest_primary.data;
- }
- dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d, flip %s\n",
+ qxl_set_rect_to_surface(qxl, &qxl->dirty[0]);
+ qxl->num_dirty_rects = 1;
+ dprint(qxl, 1, "%s: %dx%d, stride %d, bpp %d, depth %d\n",
__FUNCTION__,
qxl->guest_primary.surface.width,
qxl->guest_primary.surface.height,
qxl->guest_primary.qxl_stride,
qxl->guest_primary.bytes_pp,
- qxl->guest_primary.bits_pp,
- qxl->guest_primary.flipped ? "yes" : "no");
- vga->ds->surface =
+ qxl->guest_primary.bits_pp);
+ }
+ if (surface->width != qxl->guest_primary.surface.width ||
+ surface->height != qxl->guest_primary.surface.height) {
+ if (qxl->guest_primary.qxl_stride > 0) {
+ dprint(qxl, 1, "%s: using guest_primary for displaysurface\n",
+ __func__);
+ qemu_free_displaysurface(vga->ds);
qemu_create_displaysurface_from(qxl->guest_primary.surface.width,
qxl->guest_primary.surface.height,
qxl->guest_primary.bits_pp,
qxl->guest_primary.abs_stride,
- ptr);
- dpy_resize(vga->ds);
- }
-
- update.left = 0;
- update.right = qxl->guest_primary.surface.width;
- update.top = 0;
- update.bottom = qxl->guest_primary.surface.height;
-
- memset(dirty, 0, sizeof(dirty));
- if (runstate_is_running() && qxl->guest_primary.commands) {
- qxl->guest_primary.commands = 0;
- qxl_spice_update_area(qxl, 0, &update,
- dirty, ARRAY_SIZE(dirty), 1, QXL_SYNC);
- }
- if (redraw) {
- memset(dirty, 0, sizeof(dirty));
- dirty[0] = update;
+ qxl->guest_primary.data);
+ } else {
+ dprint(qxl, 1, "%s: resizing displaysurface to guest_primary\n",
+ __func__);
+ qemu_resize_displaysurface(vga->ds,
+ qxl->guest_primary.surface.width,
+ qxl->guest_primary.surface.height);
+ }
}
-
- for (i = 0; i < ARRAY_SIZE(dirty); i++) {
- if (qemu_spice_rect_is_empty(dirty+i)) {
+ for (i = 0; i < qxl->num_dirty_rects; i++) {
+ if (qemu_spice_rect_is_empty(qxl->dirty+i)) {
break;
}
- if (qxl->guest_primary.flipped) {
- qxl_flip(qxl, dirty+i);
- }
+ qxl_blit(qxl, qxl->dirty+i);
dpy_update(vga->ds,
- dirty[i].left, dirty[i].top,
- dirty[i].right - dirty[i].left,
- dirty[i].bottom - dirty[i].top);
+ qxl->dirty[i].left, qxl->dirty[i].top,
+ qxl->dirty[i].right - qxl->dirty[i].left,
+ qxl->dirty[i].bottom - qxl->dirty[i].top);
}
+ qxl->num_dirty_rects = 0;
+}
+
+/*
+ * use ssd.lock to protect render_update_cookie_num.
+ * qxl_render_update is called by io thread or vcpu thread, and the completion
+ * callbacks are called by spice_server thread, defering to bh called from the
+ * io thread.
+ */
+void qxl_render_update(PCIQXLDevice *qxl)
+{
+ QXLCookie *cookie;
+
+ qemu_mutex_lock(&qxl->ssd.lock);
+
+ if (!runstate_is_running() || !qxl->guest_primary.commands) {
+ qxl_render_update_area_unlocked(qxl);
+ qemu_mutex_unlock(&qxl->ssd.lock);
+ return;
+ }
+
+ qxl->guest_primary.commands = 0;
+ qxl->render_update_cookie_num++;
+ qemu_mutex_unlock(&qxl->ssd.lock);
+ cookie = qxl_cookie_new(QXL_COOKIE_TYPE_RENDER_UPDATE_AREA,
+ 0);
+ qxl_set_rect_to_surface(qxl, &cookie->u.render.area);
+ qxl_spice_update_area(qxl, 0, &cookie->u.render.area, NULL,
+ 0, 1 /* clear_dirty_region */, QXL_ASYNC, cookie);
+}
+
+void qxl_render_update_area_bh(void *opaque)
+{
+ PCIQXLDevice *qxl = opaque;
+
+ qemu_mutex_lock(&qxl->ssd.lock);
+ qxl_render_update_area_unlocked(qxl);
+ qemu_mutex_unlock(&qxl->ssd.lock);
+}
+
+void qxl_render_update_area_done(PCIQXLDevice *qxl, QXLCookie *cookie)
+{
+ qemu_mutex_lock(&qxl->ssd.lock);
+ qemu_bh_schedule(qxl->update_area_bh);
+ qxl->render_update_cookie_num--;
+ qemu_mutex_unlock(&qxl->ssd.lock);
+ g_free(cookie);
}
static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor)
generated by cgit v1.2.3 (git 2.26.2) at 2025-02-02 18:55:31 +0000