gstreamer/gst-libs/gst/gl/wayland/gstglwindow_wayland_egl.c
Matthew Waters f58eb98440 gl/window: remove use of main_context_push/pop_thread_default()
No-one's using/depending on it (it would have criticalled and not worked)
and it's causing more problems than it's solving.  Store the GMainContext
in the public struct instead for subclasses to optionally use instead of
relying on the push/pop state to be correct.

https://bugzilla.gnome.org/show_bug.cgi?id=775970
2016-12-16 00:02:47 +11:00

577 lines
17 KiB
C

/*
* GStreamer
* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
*
* 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, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <linux/input.h>
#include "wayland_event_source.h"
#include "../gstgl_fwd.h"
#include <gst/gl/gstglcontext.h>
#include "gstgldisplay_wayland.h"
#include "gstglwindow_wayland_egl.h"
const gchar *WlEGLErrorString ();
#define GST_CAT_DEFAULT gst_gl_window_debug
#define gst_gl_window_wayland_egl_parent_class parent_class
G_DEFINE_TYPE (GstGLWindowWaylandEGL, gst_gl_window_wayland_egl,
GST_TYPE_GL_WINDOW);
static guintptr gst_gl_window_wayland_egl_get_window_handle (GstGLWindow *
window);
static void gst_gl_window_wayland_egl_set_window_handle (GstGLWindow * window,
guintptr handle);
static void gst_gl_window_wayland_egl_show (GstGLWindow * window);
static void gst_gl_window_wayland_egl_draw (GstGLWindow * window);
static void gst_gl_window_wayland_egl_close (GstGLWindow * window);
static gboolean gst_gl_window_wayland_egl_open (GstGLWindow * window,
GError ** error);
static guintptr gst_gl_window_wayland_egl_get_display (GstGLWindow * window);
static gboolean gst_gl_window_wayland_egl_set_render_rectangle (GstGLWindow *
window, gint x, gint y, gint width, gint height);
#if 0
static void
pointer_handle_enter (void *data, struct wl_pointer *pointer, uint32_t serial,
struct wl_surface *surface, wl_fixed_t sx_w, wl_fixed_t sy_w)
{
GstGLWindowWaylandEGL *window_egl = data;
struct wl_buffer *buffer;
struct wl_cursor_image *image = NULL;
window_egl->display.serial = serial;
if (window_egl->display.default_cursor) {
image = window_egl->display.default_cursor->images[0];
buffer = wl_cursor_image_get_buffer (image);
wl_pointer_set_cursor (pointer, serial,
window_egl->display.cursor_surface, image->hotspot_x, image->hotspot_y);
wl_surface_attach (window_egl->display.cursor_surface, buffer, 0, 0);
wl_surface_damage (window_egl->display.cursor_surface, 0, 0,
image->width, image->height);
wl_surface_commit (window_egl->display.cursor_surface);
}
}
static void
pointer_handle_leave (void *data, struct wl_pointer *pointer, uint32_t serial,
struct wl_surface *surface)
{
GstGLWindowWaylandEGL *window_egl = data;
window_egl->display.serial = serial;
}
static void
pointer_handle_motion (void *data, struct wl_pointer *pointer, uint32_t time,
wl_fixed_t sx_w, wl_fixed_t sy_w)
{
GstGLWindowWaylandEGL *window_egl = data;
window_egl->display.pointer_x = wl_fixed_to_double (sx_w);
window_egl->display.pointer_y = wl_fixed_to_double (sy_w);
}
enum wl_edges
{
WL_EDGE_NONE = 0,
WL_EDGE_TOP = 1,
WL_EDGE_BOTTOM = 2,
WL_EDGE_LEFT = 4,
WL_EDGE_RIGHT = 8,
};
static guint
_get_closest_pointer_corner (GstGLWindowWaylandEGL * window_egl)
{
guint edges = 0;
gdouble win_width, win_height;
gdouble p_x, p_y;
win_width = (gdouble) window_egl->window.window_width;
win_height = (gdouble) window_egl->window.window_height;
p_x = window_egl->display.pointer_x;
p_y = window_egl->display.pointer_y;
if (win_width == 0.0 || win_height == 0.0)
return WL_EDGE_NONE;
edges |= win_width / 2.0 - p_x < 0.0 ? WL_EDGE_RIGHT : WL_EDGE_LEFT;
edges |= win_height / 2.0 - p_y < 0.0 ? WL_EDGE_BOTTOM : WL_EDGE_TOP;
return edges;
}
static void
pointer_handle_button (void *data, struct wl_pointer *pointer, uint32_t serial,
uint32_t time, uint32_t button, uint32_t state_w)
{
GstGLWindowWaylandEGL *window_egl = data;
guint edges = _get_closest_pointer_corner (window_egl);
window_egl->display.serial = serial;
if (button == BTN_LEFT && state_w == WL_POINTER_BUTTON_STATE_PRESSED)
wl_shell_surface_move (window_egl->window.shell_surface,
window_egl->display.seat, serial);
if (button == BTN_RIGHT && state_w == WL_POINTER_BUTTON_STATE_PRESSED)
wl_shell_surface_resize (window_egl->window.shell_surface,
window_egl->display.seat, serial, edges);
}
static void
pointer_handle_axis (void *data, struct wl_pointer *pointer, uint32_t time,
uint32_t axis, wl_fixed_t value)
{
}
static const struct wl_pointer_listener pointer_listener = {
pointer_handle_enter,
pointer_handle_leave,
pointer_handle_motion,
pointer_handle_button,
pointer_handle_axis,
};
static void
seat_handle_capabilities (void *data, struct wl_seat *seat,
enum wl_seat_capability caps)
{
GstGLWindowWaylandEGL *window_egl = data;
struct display *display = &window_egl->display;
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !display->pointer) {
display->pointer = wl_seat_get_pointer (seat);
wl_pointer_set_user_data (display->pointer, window_egl);
wl_pointer_add_listener (display->pointer, &pointer_listener, window_egl);
} else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && display->pointer) {
wl_pointer_destroy (display->pointer);
display->pointer = NULL;
}
#if 0
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) {
input->keyboard = wl_seat_get_keyboard (seat);
wl_keyboard_set_user_data (input->keyboard, input);
wl_keyboard_add_listener (input->keyboard, &keyboard_listener, input);
} else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) {
wl_keyboard_destroy (input->keyboard);
input->keyboard = NULL;
}
#endif
}
static const struct wl_seat_listener seat_listener = {
seat_handle_capabilities,
};
#endif
static void
handle_ping (void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
GstGLWindowWaylandEGL *window_egl = data;
GST_TRACE_OBJECT (window_egl, "ping received serial %u", serial);
wl_shell_surface_pong (shell_surface, serial);
}
static void window_resize (GstGLWindowWaylandEGL * window_egl, guint width,
guint height);
static void
handle_configure (void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
GstGLWindowWaylandEGL *window_egl = data;
GST_DEBUG ("configure event on surface %p, %ix%i", shell_surface, width,
height);
window_resize (window_egl, width, height);
}
static void
handle_popup_done (void *data, struct wl_shell_surface *shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done
};
static void
destroy_surfaces (GstGLWindowWaylandEGL * window_egl)
{
if (window_egl->window.subsurface) {
wl_subsurface_destroy (window_egl->window.subsurface);
window_egl->window.subsurface = NULL;
}
if (window_egl->window.shell_surface) {
wl_shell_surface_destroy (window_egl->window.shell_surface);
window_egl->window.shell_surface = NULL;
}
if (window_egl->window.surface) {
wl_surface_destroy (window_egl->window.surface);
window_egl->window.surface = NULL;
}
if (window_egl->window.native) {
wl_egl_window_destroy (window_egl->window.native);
window_egl->window.native = NULL;
}
}
static void
create_surfaces (GstGLWindowWaylandEGL * window_egl)
{
GstGLDisplayWayland *display =
GST_GL_DISPLAY_WAYLAND (GST_GL_WINDOW (window_egl)->display);
gint width, height;
if (!window_egl->window.surface) {
window_egl->window.surface =
wl_compositor_create_surface (display->compositor);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.surface,
window_egl->window.queue);
}
if (window_egl->window.foreign_surface) {
/* (re)parent */
if (!display->subcompositor) {
GST_ERROR_OBJECT (window_egl,
"Wayland server does not support subsurfaces");
window_egl->window.foreign_surface = NULL;
goto shell_window;
}
if (!window_egl->window.subsurface) {
window_egl->window.subsurface =
wl_subcompositor_get_subsurface (display->subcompositor,
window_egl->window.surface, window_egl->window.foreign_surface);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.subsurface,
window_egl->window.queue);
wl_subsurface_set_position (window_egl->window.subsurface,
window_egl->window.window_x, window_egl->window.window_y);
wl_subsurface_set_desync (window_egl->window.subsurface);
}
} else {
shell_window:
if (!window_egl->window.shell_surface) {
window_egl->window.shell_surface =
wl_shell_get_shell_surface (display->shell,
window_egl->window.surface);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.
shell_surface, window_egl->window.queue);
wl_shell_surface_add_listener (window_egl->window.shell_surface,
&shell_surface_listener, window_egl);
wl_shell_surface_set_title (window_egl->window.shell_surface,
"OpenGL Renderer");
wl_shell_surface_set_toplevel (window_egl->window.shell_surface);
}
}
if (window_egl->window.window_width > 0)
width = window_egl->window.window_width;
else
width = 320;
window_egl->window.window_width = width;
if (window_egl->window.window_height > 0)
height = window_egl->window.window_height;
else
height = 240;
window_egl->window.window_height = height;
if (!window_egl->window.native) {
gst_gl_window_resize (GST_GL_WINDOW (window_egl), width, height);
window_egl->window.native =
wl_egl_window_create (window_egl->window.surface, width, height);
if (window_egl->window.queue)
wl_proxy_set_queue ((struct wl_proxy *) window_egl->window.native,
window_egl->window.queue);
}
}
static void
gst_gl_window_wayland_egl_class_init (GstGLWindowWaylandEGLClass * klass)
{
GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
window_class->get_window_handle =
GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_get_window_handle);
window_class->set_window_handle =
GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_set_window_handle);
window_class->show = GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_show);
window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_draw);
window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_close);
window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_open);
window_class->get_display =
GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_get_display);
window_class->set_render_rectangle =
GST_DEBUG_FUNCPTR (gst_gl_window_wayland_egl_set_render_rectangle);
}
static void
gst_gl_window_wayland_egl_init (GstGLWindowWaylandEGL * window)
{
}
/* Must be called in the gl thread */
GstGLWindowWaylandEGL *
gst_gl_window_wayland_egl_new (GstGLDisplay * display)
{
if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_WAYLAND)
== 0)
/* we require a wayland display to create wayland surfaces */
return NULL;
GST_DEBUG ("creating Wayland EGL window");
return g_object_new (GST_TYPE_GL_WINDOW_WAYLAND_EGL, NULL);
}
static void
gst_gl_window_wayland_egl_close (GstGLWindow * window)
{
GstGLWindowWaylandEGL *window_egl;
window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
destroy_surfaces (window_egl);
g_source_destroy (window_egl->wl_source);
g_source_unref (window_egl->wl_source);
window_egl->wl_source = NULL;
GST_GL_WINDOW_CLASS (parent_class)->close (window);
}
static gboolean
gst_gl_window_wayland_egl_open (GstGLWindow * window, GError ** error)
{
GstGLDisplayWayland *display;
GstGLWindowWaylandEGL *window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
if (!GST_IS_GL_DISPLAY_WAYLAND (window->display)) {
g_set_error (error, GST_GL_WINDOW_ERROR,
GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
"Failed to retrieve Wayland display (wrong type?)");
return FALSE;
}
display = GST_GL_DISPLAY_WAYLAND (window->display);
if (!display->display) {
g_set_error (error, GST_GL_WINDOW_ERROR,
GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
"Failed to retrieve Wayland display");
return FALSE;
}
window_egl->window.queue = wl_display_create_queue (display->display);
window_egl->wl_source = wayland_event_source_new (display->display,
window_egl->window.queue);
if (!GST_GL_WINDOW_CLASS (parent_class)->open (window, error))
return FALSE;
g_source_attach (window_egl->wl_source, window->main_context);
return TRUE;
}
void
gst_gl_window_wayland_egl_create_window (GstGLWindowWaylandEGL * window_egl)
{
create_surfaces (window_egl);
}
static guintptr
gst_gl_window_wayland_egl_get_window_handle (GstGLWindow * window)
{
return (guintptr) GST_GL_WINDOW_WAYLAND_EGL (window)->window.native;
}
static void
gst_gl_window_wayland_egl_set_window_handle (GstGLWindow * window,
guintptr handle)
{
GstGLWindowWaylandEGL *window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
struct wl_surface *surface = (struct wl_surface *) handle;
/* already set the NULL handle */
if (surface == NULL && window_egl->window.foreign_surface == NULL)
return;
/* unparent */
destroy_surfaces (window_egl);
window_egl->window.foreign_surface = surface;
create_surfaces (window_egl);
}
static void
gst_gl_window_wayland_egl_show (GstGLWindow * window)
{
GstGLDisplayWayland *display_wayland =
GST_GL_DISPLAY_WAYLAND (window->display);
GstGLWindowWaylandEGL *window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
create_surfaces (window_egl);
if (gst_gl_wl_display_roundtrip_queue (display_wayland->display,
window_egl->window.queue) < 0)
GST_WARNING_OBJECT (window, "failed a roundtrip");
}
static void
window_resize (GstGLWindowWaylandEGL * window_egl, guint width, guint height)
{
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GST_DEBUG ("resizing window from %ux%u to %ux%u",
window_egl->window.window_width, window_egl->window.window_height, width,
height);
if (window_egl->window.native) {
wl_egl_window_resize (window_egl->window.native, width, height, 0, 0);
}
gst_gl_window_resize (window, width, height);
window_egl->window.window_width = width;
window_egl->window.window_height = height;
}
static void
draw_cb (gpointer data)
{
GstGLWindowWaylandEGL *window_egl = data;
GstGLWindow *window = GST_GL_WINDOW (window_egl);
GstGLContext *context = gst_gl_window_get_context (window);
GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context);
create_surfaces (window_egl);
if (window_egl->window.subsurface)
wl_subsurface_set_desync (window_egl->window.subsurface);
if (window->queue_resize) {
guint width, height;
gst_gl_window_get_surface_dimensions (window, &width, &height);
gst_gl_window_resize (window, width, height);
}
if (window->draw)
window->draw (window->draw_data);
context_class->swap_buffers (context);
if (window_egl->window.subsurface)
wl_subsurface_set_desync (window_egl->window.subsurface);
gst_object_unref (context);
}
static void
gst_gl_window_wayland_egl_draw (GstGLWindow * window)
{
gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
}
struct SetRenderRectangle
{
GstGLWindowWaylandEGL *window_egl;
GstVideoRectangle rect;
};
static void
_free_set_render_rectangle (struct SetRenderRectangle *render)
{
if (render) {
if (render->window_egl)
gst_object_unref (render->window_egl);
g_free (render);
}
}
static void
_set_render_rectangle (gpointer data)
{
struct SetRenderRectangle *render = data;
GST_LOG_OBJECT (render->window_egl, "setting render rectangle %i,%i+%ix%i",
render->rect.x, render->rect.y, render->rect.w, render->rect.h);
if (render->window_egl->window.subsurface) {
wl_subsurface_set_sync (render->window_egl->window.subsurface);
wl_subsurface_set_position (render->window_egl->window.subsurface,
render->rect.x, render->rect.y);
render->window_egl->window.window_x = render->rect.x;
render->window_egl->window.window_y = render->rect.y;
}
window_resize (render->window_egl, render->rect.w, render->rect.h);
}
static gboolean
gst_gl_window_wayland_egl_set_render_rectangle (GstGLWindow * window,
gint x, gint y, gint width, gint height)
{
GstGLWindowWaylandEGL *window_egl = GST_GL_WINDOW_WAYLAND_EGL (window);
struct SetRenderRectangle *render;
render = g_new0 (struct SetRenderRectangle, 1);
render->window_egl = gst_object_ref (window_egl);
render->rect.x = x;
render->rect.y = y;
render->rect.w = width;
render->rect.h = height;
gst_gl_window_send_message_async (window,
(GstGLWindowCB) _set_render_rectangle, render,
(GDestroyNotify) _free_set_render_rectangle);
return TRUE;
}
static guintptr
gst_gl_window_wayland_egl_get_display (GstGLWindow * window)
{
GstGLDisplayWayland *display = GST_GL_DISPLAY_WAYLAND (window->display);
return (guintptr) display->display;
}