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lib: handle GL textures with y0 at top

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This commit is contained in:
Christian Hergert 2023-02-15 19:40:48 -08:00
parent 5657997f4a
commit 24dafbe067
1 changed files with 22 additions and 3 deletions
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25
lib/mks-paintable.c
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@ -25,6 +25,7 @@
#include <sys/socket.h> #include <sys/socket.h>
#include <glib/gstdio.h> #include <glib/gstdio.h>
#include <gtk/gtk.h>
#include <pixman.h> #include <pixman.h>
#include "mks-cairo-framebuffer-private.h" #include "mks-cairo-framebuffer-private.h"
@ -44,6 +45,7 @@ struct _MksPaintable
GdkCursor *cursor; GdkCursor *cursor;
int mouse_x; int mouse_x;
int mouse_y; int mouse_y;
guint y_inverted : 1;
}; };
enum { enum {
@ -117,10 +119,23 @@ mks_paintable_snapshot (GdkPaintable *paintable,
double width, double width,
double height) double height)
{ {
GdkPaintable *child = MKS_PAINTABLE (paintable)->child; MksPaintable *self = MKS_PAINTABLE (paintable);
if (child != NULL) if (self->child != NULL)
gdk_paintable_snapshot (child, snapshot, width, height); {
if (MKS_IS_DMABUF_PAINTABLE (self->child) && !self->y_inverted)
{
gtk_snapshot_save (snapshot);
gtk_snapshot_translate (snapshot, &GRAPHENE_POINT_INIT (0, height));
gtk_snapshot_scale (snapshot, 1, -1);
gdk_paintable_snapshot (self->child, snapshot, width, height);
gtk_snapshot_restore (snapshot);
}
else
{
gdk_paintable_snapshot (self->child, snapshot, width, height);
}
}
} }
static void static void
@ -346,6 +361,8 @@ mks_paintable_listener_scanout_dmabuf (MksPaintable *self,
return TRUE; return TRUE;
} }
self->y_inverted = !y0_top;
mks_paintable_set_child (self, GDK_PAINTABLE (child)); mks_paintable_set_child (self, GDK_PAINTABLE (child));
mks_qemu_listener_complete_scanout_dmabuf (listener, invocation, NULL); mks_qemu_listener_complete_scanout_dmabuf (listener, invocation, NULL);
@ -510,6 +527,8 @@ mks_paintable_listener_scanout (MksPaintable *self,
mks_paintable_set_child (self, GDK_PAINTABLE (child)); mks_paintable_set_child (self, GDK_PAINTABLE (child));
} }
self->y_inverted = FALSE;
source = cairo_image_surface_create_for_data ((guint8 *)data, format, width, height, stride); source = cairo_image_surface_create_for_data ((guint8 *)data, format, width, height, stride);
cr = mks_cairo_framebuffer_update (MKS_CAIRO_FRAMEBUFFER (self->child), 0, 0, width, height); cr = mks_cairo_framebuffer_update (MKS_CAIRO_FRAMEBUFFER (self->child), 0, 0, width, height);
cairo_set_source_surface (cr, source, 0, 0); cairo_set_source_surface (cr, source, 0, 0);