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lib: start wiring up framebuffer to paintable

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Still things to sort out here, but just wanted to lay some plumbing
between the two objects.
This commit is contained in:
Christian Hergert 2023-02-12 10:39:14 -08:00
parent 2a0f0be8c0
commit 84d1d827c1
2 changed files with 60 additions and 9 deletions
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15
lib/mks-framebuffer.c
View File

@ -147,9 +147,7 @@ mks_framebuffer_snapshot (GdkPaintable *paintable,
* composited over on the GPU. It saves us a large GPU upload since
* the GL renderer will cache the texture in VRAM in many cases.
*/
gtk_snapshot_append_texture (snapshot,
GDK_TEXTURE (self->base_texture),
&GRAPHENE_RECT_INIT (0, 0, self->width, self->height));
gdk_paintable_snapshot (GDK_PAINTABLE (self->base_texture), snapshot, width, height);
/* Now draw our damage rectangles which are going to require an upload
* since we can't reuse them between frames without a lot of tracking.
@ -245,7 +243,16 @@ mks_framebuffer_update (MksFramebuffer *self,
cairo_surface_destroy (surface);
cairo_destroy (cr);
cairo_region_union_rectangle (self->damage, &(cairo_rectangle_int_t) { x, y, width, height });
if (x == 0 && y == 0 && width == self->width && height == self->height)
{
g_clear_pointer (&self->damage, cairo_region_destroy);
self->damage = cairo_region_create ();
}
else
{
cairo_region_union_rectangle (self->damage,
&(cairo_rectangle_int_t) { x, y, width, height });
}
}
static void

54
lib/mks-paintable.c
View File

@ -27,6 +27,7 @@
#include <glib/gstdio.h>
#include <pixman.h>
#include "mks-framebuffer-private.h"
#include "mks-paintable-private.h"
#include "mks-qemu.h"
@ -34,11 +35,20 @@ struct _MksPaintable
{
GObject parent_instance;
MksQemuListener *listener;
GDBusConnection *connection;
MksFramebuffer *framebuffer;
guint width;
guint height;
MksQemuListener *listener;
GDBusConnection *connection;
guint mode : 2;
};
enum {
MODE_INITIAL = 0,
MODE_FRAMEBUFFER,
MODE_DMABUF,
};
static cairo_format_t
@ -96,6 +106,14 @@ mks_paintable_snapshot (GdkPaintable *paintable,
double width,
double height)
{
MksPaintable *self = (MksPaintable *)paintable;
g_assert (MKS_IS_PAINTABLE (self));
g_assert (GDK_IS_SNAPSHOT (snapshot));
if (self->mode == MODE_FRAMEBUFFER)
gdk_paintable_snapshot (GDK_PAINTABLE (self->framebuffer),
snapshot, width, height);
}
static void
@ -214,9 +232,19 @@ mks_paintable_listener_update (MksPaintable *self,
return TRUE;
}
gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
if (self->mode == MODE_FRAMEBUFFER)
{
const guint8 *data;
gsize data_len;
data_len = g_variant_n_children (bytes);
data = (const guint8 *)g_variant_get_bytestring (bytes);
mks_framebuffer_update (self->framebuffer, x, y, width, height, stride, format, data, data_len);
gdk_paintable_invalidate_contents (GDK_PAINTABLE (self));
}
g_print ("Update {%d,%d,%d,%d}\n", x, y, width, height);
mks_qemu_listener_complete_update (listener, invocation);
return TRUE;
@ -234,10 +262,13 @@ mks_paintable_listener_scanout (MksPaintable *self,
{
cairo_format_t format;
gboolean size_changed;
const guint8 *data;
gsize data_len;
g_assert (MKS_IS_PAINTABLE (self));
g_assert (G_IS_DBUS_METHOD_INVOCATION (invocation));
g_assert (MKS_QEMU_IS_LISTENER (listener));
g_assert (g_variant_is_of_type (bytes, G_VARIANT_TYPE_BYTESTRING));
if (!(format = _pixman_format_to_cairo_format (pixman_format)))
{
@ -250,7 +281,20 @@ mks_paintable_listener_scanout (MksPaintable *self,
size_changed = width != self->width || height != self->height;
g_print ("Scannout!\n");
if (size_changed || self->framebuffer == NULL)
{
g_clear_object (&self->framebuffer);
self->framebuffer = mks_framebuffer_new (width, height, format);
}
data_len = g_variant_n_children (bytes);
data = (const guint8 *)g_variant_get_bytestring (bytes);
mks_framebuffer_update (self->framebuffer,
0, 0, width, height,
stride, format,
data, data_len);
self->mode = MODE_FRAMEBUFFER;
if (size_changed)
gdk_paintable_invalidate_size (GDK_PAINTABLE (self));