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mir: add OpenGL support

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Implement GdkGLContext using EGL and use hardware mir surfaces
when a GdkWindow uses gl rendering.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=740346
This commit is contained in:
Marco Trevisan (Treviño)
2014-11-18 22:23:52 +01:00
parent 45cfb405c0
commit 6e9db05601
6 changed files with 705 additions and 68 deletions
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1
gdk/mir/Makefile.am
View File

@ -24,6 +24,7 @@ libgdk_mir_la_SOURCES = \
gdkmirdevicemanager.c \
gdkmirdisplay.c \
gdkmireventsource.c \
gdkmirglcontext.c \
gdkmirkeyboard.c \
gdkmirkeymap.c \
gdkmirpointer.c \

42
gdk/mir/gdkmir-private.h
View File

@ -18,10 +18,13 @@
#ifndef __GDK_PRIVATE_MIR_H__
#define __GDK_PRIVATE_MIR_H__
#include <epoxy/egl.h>
#include "gdkmir.h"
#include "gdkdisplay.h"
#include "gdkscreen.h"
#include "gdkdevicemanager.h"
#include "gdkglcontextprivate.h"
#include "gdkkeys.h"
#include "gdkwindowimpl.h"
@ -35,6 +38,27 @@ typedef struct _GdkMirEventSource GdkMirEventSource;
GType gdk_mir_window_impl_get_type (void);
struct _GdkMirGLContext
{
GdkGLContext parent_instance;
EGLContext egl_context;
EGLConfig egl_config;
gboolean is_attached;
};
struct _GdkMirGLContextClass
{
GdkGLContextClass parent_class;
};
typedef struct _GdkMirGLContext GdkMirGLContext;
typedef struct _GdkMirGLContextClass GdkMirGLContextClass;
#define GDK_MIR_GL_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GDK_TYPE_MIR_GL_CONTEXT, GdkMirGLContext))
GdkDisplay *_gdk_mir_display_open (const gchar *display_name);
GdkScreen *_gdk_mir_screen_new (GdkDisplay *display);
@ -77,6 +101,24 @@ void _gdk_mir_window_reference_unref (GdkMirWindowReference *ref);
void _gdk_mir_event_source_queue (GdkMirWindowReference *window_ref, const MirEvent *event);
MirPixelFormat _gdk_mir_display_get_pixel_format (GdkDisplay *display, MirBufferUsage usage);
gboolean _gdk_mir_display_init_egl_display (GdkDisplay *display);
EGLDisplay _gdk_mir_display_get_egl_display (GdkDisplay *display);
gboolean _gdk_mir_display_have_egl_khr_create_context (GdkDisplay *display);
gboolean _gdk_mir_display_have_egl_buffer_age (GdkDisplay *display);
gboolean _gdk_mir_display_have_egl_swap_buffers_with_damage (GdkDisplay *display);
gboolean _gdk_mir_display_have_egl_surfaceless_context (GdkDisplay *display);
EGLSurface _gdk_mir_window_get_egl_surface (GdkWindow *window, EGLConfig config);
EGLSurface _gdk_mir_window_get_dummy_egl_surface (GdkWindow *window, EGLConfig config);
void _gdk_mir_print_modifiers (unsigned int modifiers);
void _gdk_mir_print_key_event (const MirKeyEvent *event);

10
gdk/mir/gdkmir.h
View File

@ -24,8 +24,11 @@
#define GDK_TYPE_MIR_DISPLAY (gdk_mir_display_get_type ())
#define GDK_IS_MIR_DISPLAY(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_MIR_DISPLAY))
#define GDK_TYPE_MIR_WINDOW (gdk_mir_window_get_type ())
#define GDK_IS_WINDOW_MIR(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_MIR_WINDOW))
#define GDK_TYPE_MIR_GL_CONTEXT (gdk_mir_gl_context_get_type ())
#define GDK_MIR_IS_GL_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GDK_TYPE_MIR_GL_CONTEXT))
#define GDK_TYPE_MIR_WINDOW (gdk_mir_window_get_type ())
#define GDK_IS_WINDOW_MIR(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_MIR_WINDOW))
GDK_AVAILABLE_IN_3_10
GType gdk_mir_display_get_type (void);
@ -36,4 +39,7 @@ struct MirConnection *gdk_mir_display_get_mir_connection (GdkDisplay *display);
GDK_AVAILABLE_IN_3_10
GType gdk_mir_window_get_type (void);
GDK_AVAILABLE_IN_3_16
GType gdk_mir_gl_context_get_type (void) G_GNUC_CONST;
#endif /* __GDK_MIR_H__ */

187
gdk/mir/gdkmirdisplay.c
View File

@ -46,6 +46,15 @@ typedef struct GdkMirDisplay
GdkScreen *screen;
GdkKeymap *keymap;
MirPixelFormat sw_pixel_format;
MirPixelFormat hw_pixel_format;
EGLDisplay egl_display;
guint have_egl_khr_create_context : 1;
guint have_egl_buffer_age : 1;
guint have_egl_swap_buffers_with_damage : 1;
guint have_egl_surfaceless_context : 1;
} GdkMirDisplay;
typedef struct GdkMirDisplayClass
@ -53,6 +62,8 @@ typedef struct GdkMirDisplayClass
GdkDisplayClass parent_class;
} GdkMirDisplayClass;
static void initialize_pixel_formats (GdkMirDisplay *display);
/**
* SECTION:mir_interaction
* @Short_description: Mir backend-specific functions
@ -112,6 +123,7 @@ _gdk_mir_display_open (const gchar *display_name)
display->connection = connection;
GDK_DISPLAY (display)->device_manager = _gdk_mir_device_manager_new (GDK_DISPLAY (display));
display->screen = _gdk_mir_screen_new (GDK_DISPLAY (display));
initialize_pixel_formats (display);
g_signal_emit_by_name (display, "opened");
@ -487,6 +499,180 @@ gdk_mir_display_utf8_to_string_target (GdkDisplay *display,
return NULL;
}
static void
initialize_pixel_formats (GdkMirDisplay *display)
{
MirPixelFormat formats[mir_pixel_formats];
unsigned int n_formats, i;
mir_connection_get_available_surface_formats (display->connection, formats,
mir_pixel_formats, &n_formats);
display->sw_pixel_format = mir_pixel_format_invalid;
display->hw_pixel_format = mir_pixel_format_invalid;
for (i = 0; i < n_formats; i++)
{
switch (formats[i])
{
case mir_pixel_format_abgr_8888:
case mir_pixel_format_xbgr_8888:
case mir_pixel_format_argb_8888:
case mir_pixel_format_xrgb_8888:
display->hw_pixel_format = formats[i];
break;
default:
continue;
}
if (display->hw_pixel_format != mir_pixel_format_invalid)
break;
}
for (i = 0; i < n_formats; i++)
{
if (formats[i] == mir_pixel_format_argb_8888)
{
display->sw_pixel_format = formats[i];
break;
}
}
}
MirPixelFormat
_gdk_mir_display_get_pixel_format (GdkDisplay *display,
MirBufferUsage usage)
{
GdkMirDisplay *mir_dpy = GDK_MIR_DISPLAY (display);
if (usage == mir_buffer_usage_hardware)
return mir_dpy->hw_pixel_format;
return mir_dpy->sw_pixel_format;
}
gboolean
_gdk_mir_display_init_egl_display (GdkDisplay *display)
{
GdkMirDisplay *mir_dpy = GDK_MIR_DISPLAY (display);
EGLint major_version, minor_version;
EGLDisplay *dpy;
if (mir_dpy->egl_display)
return TRUE;
dpy = eglGetDisplay (mir_connection_get_egl_native_display (mir_dpy->connection));
if (dpy == NULL)
return FALSE;
if (!eglInitialize (dpy, &major_version, &minor_version))
return FALSE;
if (!eglBindAPI (EGL_OPENGL_API))
return FALSE;
mir_dpy->egl_display = dpy;
mir_dpy->have_egl_khr_create_context =
epoxy_has_egl_extension (dpy, "EGL_KHR_create_context");
mir_dpy->have_egl_buffer_age =
epoxy_has_egl_extension (dpy, "EGL_EXT_buffer_age");
mir_dpy->have_egl_swap_buffers_with_damage =
epoxy_has_egl_extension (dpy, "EGL_EXT_swap_buffers_with_damage");
mir_dpy->have_egl_surfaceless_context =
epoxy_has_egl_extension (dpy, "EGL_KHR_surfaceless_context");
GDK_NOTE (OPENGL,
g_print ("EGL API version %d.%d found\n"
" - Vendor: %s\n"
" - Version: %s\n"
" - Client APIs: %s\n"
" - Extensions:\n"
"\t%s\n",
major_version,
minor_version,
eglQueryString (dpy, EGL_VENDOR),
eglQueryString (dpy, EGL_VERSION),
eglQueryString (dpy, EGL_CLIENT_APIS),
eglQueryString (dpy, EGL_EXTENSIONS)));
return TRUE;
}
static gboolean
gdk_mir_display_make_gl_context_current (GdkDisplay *display,
GdkGLContext *context)
{
EGLDisplay egl_display = _gdk_mir_display_get_egl_display (display);
GdkMirGLContext *mir_context;
GdkWindow *window;
EGLSurface egl_surface;
if (context == NULL)
{
eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
return TRUE;
}
mir_context = GDK_MIR_GL_CONTEXT (context);
window = gdk_gl_context_get_window (context);
if (mir_context->is_attached)
{
egl_surface = _gdk_mir_window_get_egl_surface (window,
mir_context->egl_config);
}
else
{
if (_gdk_mir_display_have_egl_surfaceless_context (display))
egl_surface = EGL_NO_SURFACE;
else
egl_surface = _gdk_mir_window_get_dummy_egl_surface (window,
mir_context->egl_config);
}
if (!eglMakeCurrent (egl_display, egl_surface, egl_surface, mir_context->egl_context))
{
g_warning ("eglMakeCurrent failed");
return FALSE;
}
return TRUE;
}
EGLDisplay _gdk_mir_display_get_egl_display (GdkDisplay *display)
{
return GDK_MIR_DISPLAY (display)->egl_display;
}
gboolean _gdk_mir_display_have_egl_khr_create_context (GdkDisplay *display)
{
return GDK_MIR_DISPLAY (display)->have_egl_khr_create_context;
}
gboolean _gdk_mir_display_have_egl_buffer_age (GdkDisplay *display)
{
/* FIXME: this is not really supported by mir yet (despite is advertised) */
// return GDK_MIR_DISPLAY (display)->have_egl_buffer_age;
return FALSE;
}
gboolean _gdk_mir_display_have_egl_swap_buffers_with_damage (GdkDisplay *display)
{
/* FIXME: this is not really supported by mir yet (despite is advertised) */
// return GDK_MIR_DISPLAY (display)->have_egl_swap_buffers_with_damage;
return FALSE;
}
gboolean _gdk_mir_display_have_egl_surfaceless_context (GdkDisplay *display)
{
return GDK_MIR_DISPLAY (display)->have_egl_surfaceless_context;
}
static void
gdk_mir_display_init (GdkMirDisplay *display)
{
@ -545,4 +731,5 @@ gdk_mir_display_class_init (GdkMirDisplayClass *klass)
display_class->convert_selection = gdk_mir_display_convert_selection;
display_class->text_property_to_utf8_list = gdk_mir_display_text_property_to_utf8_list;
display_class->utf8_to_string_target = gdk_mir_display_utf8_to_string_target;
display_class->make_gl_context_current = gdk_mir_display_make_gl_context_current;
}

125
gdk/mir/gdkmirglcontext.c Normal file
View File

@ -0,0 +1,125 @@
/* GDK - The GIMP Drawing Kit
*
* gdkmirglcontext.c: Mir specific OpenGL wrappers
*
* Copyright © 2014 Canonical Ltd
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdkmir-private.h"
#include "gdkinternals.h"
#include "gdkintl.h"
G_DEFINE_TYPE (GdkMirGLContext, gdk_mir_gl_context, GDK_TYPE_GL_CONTEXT)
static void
gdk_mir_gl_context_update (GdkGLContext *context)
{
GdkWindow *window = gdk_gl_context_get_window (context);
int width, height;
gdk_gl_context_make_current (context);
width = gdk_window_get_width (window);
height = gdk_window_get_height (window);
GDK_NOTE (OPENGL, g_print ("Updating GL viewport size to { %d, %d } for window %p (context: %p)\n",
width, height,
window, context));
glViewport (0, 0, width, height);
}
static void
gdk_mir_gl_context_end_frame (GdkGLContext *context,
cairo_region_t *painted,
cairo_region_t *damage)
{
GdkWindow *window = gdk_gl_context_get_window (context);
GdkDisplay *display = gdk_window_get_display (window);
GdkMirGLContext *context_mir = GDK_MIR_GL_CONTEXT (context);
EGLDisplay egl_display = _gdk_mir_display_get_egl_display (display);
EGLSurface egl_surface;
gdk_gl_context_make_current (context);
egl_surface = _gdk_mir_window_get_egl_surface (window,
context_mir->egl_config);
if (_gdk_mir_display_have_egl_swap_buffers_with_damage (display))
{
int i, j, n_rects = cairo_region_num_rectangles (damage);
EGLint *rects = g_new (EGLint, n_rects * 4);
cairo_rectangle_int_t rect;
int window_height = gdk_window_get_height (window);
for (i = 0, j = 0; i < n_rects; i++)
{
cairo_region_get_rectangle (damage, i, &rect);
rects[j++] = rect.x;
rects[j++] = window_height - rect.height - rect.y;
rects[j++] = rect.width;
rects[j++] = rect.height;
}
eglSwapBuffersWithDamageEXT (egl_display, egl_surface, rects, n_rects);
g_free (rects);
}
else
{
eglSwapBuffers (egl_display, egl_surface);
}
}
static void
gdk_mir_gl_context_dispose (GObject *gobject)
{
GdkMirGLContext *context_mir = GDK_MIR_GL_CONTEXT (gobject);
if (context_mir->egl_context != NULL)
{
GdkGLContext *context = GDK_GL_CONTEXT (gobject);
GdkWindow *window = gdk_gl_context_get_window (context);
GdkDisplay *display = gdk_window_get_display (window);
EGLDisplay egl_display = _gdk_mir_display_get_egl_display (display);
if (eglGetCurrentContext () == context_mir->egl_context)
eglMakeCurrent (egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
GDK_NOTE (OPENGL, g_print ("Destroying EGL context\n"));
eglDestroyContext (egl_display, context_mir->egl_context);
context_mir->egl_context = NULL;
}
G_OBJECT_CLASS (gdk_mir_gl_context_parent_class)->dispose (gobject);
}
static void
gdk_mir_gl_context_class_init (GdkMirGLContextClass *klass)
{
GdkGLContextClass *context_class = GDK_GL_CONTEXT_CLASS (klass);
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
context_class->update = gdk_mir_gl_context_update;
context_class->end_frame = gdk_mir_gl_context_end_frame;
gobject_class->dispose = gdk_mir_gl_context_dispose;
}
static void
gdk_mir_gl_context_init (GdkMirGLContext *self)
{
}

408
gdk/mir/gdkmirwindowimpl.c
View File

@ -25,6 +25,7 @@
#include "gdkwindowimpl.h"
#include "gdkinternals.h"
#include "gdkintl.h"
#include "gdkdisplayprivate.h"
#include "gdkdeviceprivate.h"
@ -32,6 +33,8 @@
#define GDK_IS_WINDOW_IMPL_MIR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_WINDOW_IMPL_MIR))
#define GDK_MIR_WINDOW_IMPL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_WINDOW_IMPL_MIR, GdkMirWindowImplClass))
#define MAX_EGL_ATTRS 30
typedef struct _GdkMirWindowImplClass GdkMirWindowImplClass;
struct _GdkMirWindowImpl
@ -64,6 +67,13 @@ struct _GdkMirWindowImpl
/* Cairo context for current frame */
cairo_surface_t *cairo_surface;
/* Egl surface for the current mir surface */
EGLSurface egl_surface;
/* Dummy MIR and EGL surfaces */
MirSurface *dummy_surface;
EGLSurface dummy_egl_surface;
/* TRUE if the window can be seen */
gboolean visible;
@ -135,12 +145,6 @@ gdk_mir_window_impl_init (GdkMirWindowImpl *impl)
impl->surface_state = mir_surface_state_unknown;
}
static MirConnection *
get_connection (GdkWindow *window)
{
return gdk_mir_display_get_mir_connection (gdk_window_get_display (window));
}
static void
set_surface_state (GdkMirWindowImpl *impl,
MirSurfaceState state)
@ -173,13 +177,32 @@ event_cb (MirSurface *surface,
_gdk_mir_event_source_queue (context, event);
}
static MirSurface *
create_mir_surface (GdkDisplay *display,
gint width,
gint height,
MirBufferUsage buffer_usage)
{
MirSurfaceParameters parameters;
MirConnection *connection;
parameters.name = "GTK+ Mir";
parameters.width = width;
parameters.height = height;
parameters.pixel_format = _gdk_mir_display_get_pixel_format (display, buffer_usage);
parameters.buffer_usage = buffer_usage;
parameters.output_id = mir_display_output_id_invalid;
connection = gdk_mir_display_get_mir_connection (display);
return mir_connection_create_surface_sync (connection, &parameters);
}
static void
ensure_surface (GdkWindow *window)
ensure_surface_full (GdkWindow *window,
MirBufferUsage buffer_usage)
{
GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
MirPixelFormat formats[mir_pixel_formats], pixel_format = mir_pixel_format_invalid;
unsigned int n_formats, i;
MirSurfaceParameters parameters;
MirEventDelegate event_delegate = { event_cb, NULL };
GdkMirWindowReference *window_ref;
@ -193,34 +216,17 @@ ensure_surface (GdkWindow *window)
event_delegate.context = window_ref;
// Should probably calculate this once?
// Should prefer certain formats over others
mir_connection_get_available_surface_formats (get_connection (window), formats, mir_pixel_formats, &n_formats);
for (i = 0; i < n_formats; i++)
if (formats[i] == mir_pixel_format_argb_8888)
{
pixel_format = formats[i];
break;
}
impl->surface = create_mir_surface (gdk_window_get_display (window),
window->width, window->height,
buffer_usage);
parameters.name = "GTK+ Mir";
parameters.width = window->width;
parameters.height = window->height;
parameters.pixel_format = pixel_format;
parameters.buffer_usage = mir_buffer_usage_software;
parameters.output_id = mir_display_output_id_invalid;
impl->surface = mir_connection_create_surface_sync (get_connection (window), &parameters);
MirGraphicsRegion region;
MirEvent resize_event;
mir_surface_get_graphics_region (impl->surface, &region);
/* Send the initial configure with the size the server gave... */
resize_event.resize.type = mir_event_type_resize;
resize_event.resize.surface_id = 0;
resize_event.resize.width = region.width;
resize_event.resize.height = region.height;
resize_event.resize.width = window->width;
resize_event.resize.height = window->height;
_gdk_mir_event_source_queue (window_ref, &resize_event);
@ -229,6 +235,14 @@ ensure_surface (GdkWindow *window)
set_surface_state (impl, impl->surface_state);
}
static void
ensure_surface (GdkWindow *window)
{
ensure_surface_full (window, window->gl_paint_context ?
mir_buffer_usage_hardware :
mir_buffer_usage_software);
}
static void
ensure_no_surface (GdkWindow *window)
{
@ -237,15 +251,30 @@ ensure_no_surface (GdkWindow *window)
if (impl->cairo_surface)
{
cairo_surface_finish (impl->cairo_surface);
cairo_surface_destroy (impl->cairo_surface);
impl->cairo_surface = NULL;
g_clear_pointer (&impl->cairo_surface, cairo_surface_destroy);
}
if (impl->surface)
if (window->gl_paint_context)
{
mir_surface_release_sync (impl->surface);
impl->surface = NULL;
GdkDisplay *display = gdk_window_get_display (window);
EGLDisplay egl_display = _gdk_mir_display_get_egl_display (display);
if (impl->egl_surface)
{
eglDestroySurface (egl_display, impl->egl_surface);
impl->egl_surface = NULL;
}
if (impl->dummy_egl_surface)
{
eglDestroySurface (egl_display, impl->dummy_egl_surface);
impl->dummy_egl_surface = NULL;
}
g_clear_pointer (&impl->dummy_surface, mir_surface_release_sync);
}
g_clear_pointer(&impl->surface, mir_surface_release_sync);
}
static void
@ -303,11 +332,7 @@ send_buffer (GdkWindow *window)
mir_surface_swap_buffers_sync (impl->surface);
/* The Cairo context is no longer valid */
if (impl->cairo_surface)
{
cairo_surface_destroy (impl->cairo_surface);
impl->cairo_surface = NULL;
}
g_clear_pointer (&impl->cairo_surface, cairo_surface_destroy);
}
static cairo_surface_t *
@ -316,7 +341,7 @@ gdk_mir_window_impl_ref_cairo_surface (GdkWindow *window)
//g_printerr ("gdk_mir_window_impl_ref_cairo_surface window=%p\n", window);
GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
MirGraphicsRegion region;
cairo_format_t pixel_format = CAIRO_FORMAT_INVALID;
cairo_format_t pixel_format = CAIRO_FORMAT_ARGB32;
cairo_surface_t *cairo_surface;
cairo_t *c;
@ -327,31 +352,16 @@ gdk_mir_window_impl_ref_cairo_surface (GdkWindow *window)
}
/* Transient windows get rendered into a buffer and copied onto their parent */
if (impl->transient_for)
if (impl->transient_for || window->gl_paint_context)
{
cairo_surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, window->width, window->height);
cairo_surface = cairo_image_surface_create (pixel_format, window->width, window->height);
}
else
{
ensure_surface (window);
mir_surface_get_graphics_region (impl->surface, &region);
// FIXME: Should calculate this once
switch (region.pixel_format)
{
case mir_pixel_format_argb_8888:
pixel_format = CAIRO_FORMAT_ARGB32;
break;
default:
case mir_pixel_format_abgr_8888:
case mir_pixel_format_xbgr_8888:
case mir_pixel_format_xrgb_8888:
case mir_pixel_format_bgr_888:
// uh-oh...
g_printerr ("Unsupported pixel format %d\n", region.pixel_format);
break;
}
g_assert (region.pixel_format == mir_pixel_format_argb_8888);
cairo_surface = cairo_image_surface_create_for_data ((unsigned char *) region.vaddr,
pixel_format,
@ -421,10 +431,13 @@ gdk_mir_window_impl_show (GdkWindow *window,
/* Make sure there's a surface to see */
ensure_surface (window);
/* Make sure something is rendered and then show first frame */
s = gdk_mir_window_impl_ref_cairo_surface (window);
send_buffer (window);
cairo_surface_destroy (s);
if (!window->gl_paint_context)
{
/* Make sure something is rendered and then show first frame */
s = gdk_mir_window_impl_ref_cairo_surface (window);
send_buffer (window);
cairo_surface_destroy (s);
}
}
static void
@ -666,7 +679,7 @@ gdk_mir_window_impl_end_paint (GdkWindow *window)
GdkMirWindowImpl *impl = GDK_MIR_WINDOW_IMPL (window->impl);
//g_printerr ("gdk_mir_window_impl_end_paint window=%p\n", window);
if (impl->visible)
if (impl->visible && !window->current_paint.use_gl)
send_buffer (window);
}
@ -1245,6 +1258,267 @@ gdk_mir_window_impl_set_shadow_width (GdkWindow *window,
g_printerr ("gdk_mir_window_impl_set_shadow_width window=%p\n", window);
}
static gboolean
find_eglconfig_for_window (GdkWindow *window,
EGLConfig *egl_config_out,
GError **error)
{
GdkDisplay *display = gdk_window_get_display (window);
EGLDisplay *egl_display = _gdk_mir_display_get_egl_display (display);
GdkVisual *visual = gdk_window_get_visual (window);
EGLint attrs[MAX_EGL_ATTRS];
EGLint count;
EGLConfig *configs;
gboolean use_rgba;
int i = 0;
attrs[i++] = EGL_SURFACE_TYPE;
attrs[i++] = EGL_WINDOW_BIT;
attrs[i++] = EGL_COLOR_BUFFER_TYPE;
attrs[i++] = EGL_RGB_BUFFER;
attrs[i++] = EGL_RED_SIZE;
attrs[i++] = 1;
attrs[i++] = EGL_GREEN_SIZE;
attrs[i++] = 1;
attrs[i++] = EGL_BLUE_SIZE;
attrs[i++] = 1;
use_rgba = (visual == gdk_screen_get_rgba_visual (gdk_display_get_default_screen (display)));
if (use_rgba)
{
attrs[i++] = EGL_ALPHA_SIZE;
attrs[i++] = 1;
}
else
{
attrs[i++] = EGL_ALPHA_SIZE;
attrs[i++] = 0;
}
attrs[i++] = EGL_NONE;
g_assert (i < MAX_EGL_ATTRS);
if (!eglChooseConfig (egl_display, attrs, NULL, 0, &count) || count < 1)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
_("No available configurations for the given pixel format"));
return FALSE;
}
configs = g_new (EGLConfig, count);
if (!eglChooseConfig (egl_display, attrs, configs, count, &count) || count < 1)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_FORMAT,
_("No available configurations for the given pixel format"));
return FALSE;
}
/* Pick first valid configuration i guess? */
if (egl_config_out != NULL)
*egl_config_out = configs[0];
g_free (configs);
return TRUE;
}
static GdkGLContext *
gdk_mir_window_impl_create_gl_context (GdkWindow *window,
gboolean attached,
GdkGLProfile profile,
GdkGLContext *share,
GError **error)
{
GdkDisplay *display = gdk_window_get_display (window);
GdkMirGLContext *context;
EGLContext ctx;
EGLConfig config;
int i;
EGLint context_attribs[3];
if (!_gdk_mir_display_init_egl_display (display))
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
_("No GL implementation is available"));
return NULL;
}
if (profile == GDK_GL_PROFILE_DEFAULT)
profile = GDK_GL_PROFILE_LEGACY;
if (profile == GDK_GL_PROFILE_3_2_CORE &&
!_gdk_mir_display_have_egl_khr_create_context (display))
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_UNSUPPORTED_PROFILE,
_("3.2 core GL profile is not available on EGL implementation"));
return NULL;
}
if (!find_eglconfig_for_window (window, &config, error))
return NULL;
i = 0;
if (profile == GDK_GL_PROFILE_3_2_CORE)
{
context_attribs[i++] = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
context_attribs[i++] = EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
}
context_attribs[i++] = EGL_NONE;
ctx = eglCreateContext (_gdk_mir_display_get_egl_display (display),
config,
share ? GDK_MIR_GL_CONTEXT (share)->egl_context : EGL_NO_CONTEXT,
context_attribs);
if (ctx == NULL)
{
g_set_error_literal (error, GDK_GL_ERROR,
GDK_GL_ERROR_NOT_AVAILABLE,
_("Unable to create a GL context"));
return NULL;
}
GDK_NOTE (OPENGL,
g_print ("Created EGL context[%p]\n", ctx));
context = g_object_new (GDK_TYPE_MIR_GL_CONTEXT,
"display", display,
"window", window,
"profile", profile,
"shared-context", share,
NULL);
context->egl_config = config;
context->egl_context = ctx;
context->is_attached = attached;
return GDK_GL_CONTEXT (context);
}
static void
gdk_mir_window_impl_invalidate_for_new_frame (GdkWindow *window,
cairo_region_t *update_area)
{
cairo_rectangle_int_t window_rect;
GdkDisplay *display = gdk_window_get_display (window);
GdkMirGLContext *context_mir;
int buffer_age;
gboolean invalidate_all;
EGLSurface egl_surface;
/* Minimal update is ok if we're not drawing with gl */
if (window->gl_paint_context == NULL)
return;
context_mir = GDK_MIR_GL_CONTEXT (window->gl_paint_context);
buffer_age = 0;
egl_surface = _gdk_mir_window_get_egl_surface (window, context_mir->egl_config);
if (_gdk_mir_display_have_egl_buffer_age (display))
{
gdk_gl_context_make_current (window->gl_paint_context);
eglQuerySurface (_gdk_mir_display_get_egl_display (display), egl_surface,
EGL_BUFFER_AGE_EXT, &buffer_age);
}
invalidate_all = FALSE;
if (buffer_age == 0 || buffer_age >= 4)
invalidate_all = TRUE;
else
{
if (buffer_age >= 2)
{
if (window->old_updated_area[0])
cairo_region_union (update_area, window->old_updated_area[0]);
else
invalidate_all = TRUE;
}
if (buffer_age >= 3)
{
if (window->old_updated_area[1])
cairo_region_union (update_area, window->old_updated_area[1]);
else
invalidate_all = TRUE;
}
}
if (invalidate_all)
{
window_rect.x = 0;
window_rect.y = 0;
window_rect.width = gdk_window_get_width (window);
window_rect.height = gdk_window_get_height (window);
/* If nothing else is known, repaint everything so that the back
buffer is fully up-to-date for the swapbuffer */
cairo_region_union_rectangle (update_area, &window_rect);
}
}
EGLSurface
_gdk_mir_window_get_egl_surface (GdkWindow *window,
EGLConfig config)
{
GdkMirWindowImpl *impl;
impl = GDK_MIR_WINDOW_IMPL (window->impl);
if (!impl->egl_surface)
{
EGLDisplay egl_display;
EGLNativeWindowType egl_window;
ensure_no_surface (window);
ensure_surface_full (window, mir_buffer_usage_hardware);
egl_display = _gdk_mir_display_get_egl_display (gdk_window_get_display (window));
egl_window = (EGLNativeWindowType) mir_surface_get_egl_native_window (impl->surface);
impl->egl_surface =
eglCreateWindowSurface (egl_display, config, egl_window, NULL);
}
return impl->egl_surface;
}
EGLSurface
_gdk_mir_window_get_dummy_egl_surface (GdkWindow *window,
EGLConfig config)
{
GdkMirWindowImpl *impl;
impl = GDK_MIR_WINDOW_IMPL (window->impl);
if (!impl->dummy_egl_surface)
{
GdkDisplay *display;
EGLDisplay egl_display;
EGLNativeWindowType egl_window;
display = gdk_window_get_display (window);
impl->dummy_surface = create_mir_surface (display, 1, 1,
mir_buffer_usage_hardware);
egl_display = _gdk_mir_display_get_egl_display (display);
egl_window = (EGLNativeWindowType) mir_surface_get_egl_native_window (impl->surface);
impl->dummy_egl_surface =
eglCreateWindowSurface (egl_display, config, egl_window, NULL);
}
return impl->dummy_egl_surface;
}
static void
gdk_mir_window_impl_class_init (GdkMirWindowImplClass *klass)
{
@ -1333,4 +1607,6 @@ gdk_mir_window_impl_class_init (GdkMirWindowImplClass *klass)
impl_class->get_scale_factor = gdk_mir_window_impl_get_scale_factor;
impl_class->set_opaque_region = gdk_mir_window_impl_set_opaque_region;
impl_class->set_shadow_width = gdk_mir_window_impl_set_shadow_width;
impl_class->create_gl_context = gdk_mir_window_impl_create_gl_context;
impl_class->invalidate_for_new_frame = gdk_mir_window_impl_invalidate_for_new_frame;
}