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Sink: merge gtkwidget into single class

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Same as with video sink. Clapper uses only one so no need for subclassing.
This commit is contained in:
Rafał Dzięgiel
2021-03-05 23:23:34 +01:00
parent 95c3845398
commit 13d675beff
6 changed files with 642 additions and 769 deletions
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15
lib/gst/clapper/gtk4/gstgtkbasesink.c
View File

@@ -34,7 +34,6 @@
#include "gtkconfig.h"
#include "gstgtkbasesink.h"
#include "gstgtkutils.h"
#include "gtkgstglwidget.h"
GST_DEBUG_CATEGORY (gst_debug_gtk_base_sink);
#define GST_CAT_DEFAULT gst_debug_gtk_base_sink
@@ -154,7 +153,7 @@ gst_gtk_base_sink_class_init (GstGtkBaseSinkClass * klass)
gstvideosink_class->show_frame = gst_gtk_base_sink_show_frame;
gstgtkbasesink_class->create_widget = gtk_gst_gl_widget_new;
gstgtkbasesink_class->create_widget = gtk_gst_base_widget_new;
gstgtkbasesink_class->window_title = GTKCONFIG_NAME " GL Renderer";
gst_element_class_set_metadata (gstelement_class,
@@ -512,27 +511,27 @@ static gboolean
gst_gtk_base_sink_start (GstBaseSink * bsink)
{
GstGtkBaseSink *base_sink = GST_GTK_BASE_SINK (bsink);
GtkGstGLWidget *gst_widget;
GtkGstBaseWidget *base_widget;
if (!(! !gst_gtk_invoke_on_main ((GThreadFunc) (GCallback)
gst_gtk_base_sink_start_on_main, bsink)))
return FALSE;
/* After this point, base_sink->widget will always be set */
gst_widget = GTK_GST_GL_WIDGET (base_sink->widget);
base_widget = GTK_GST_BASE_WIDGET (base_sink->widget);
if (!gtk_gst_gl_widget_init_winsys (gst_widget)) {
if (!gtk_gst_base_widget_init_winsys (base_widget)) {
GST_ELEMENT_ERROR (bsink, RESOURCE, NOT_FOUND, ("%s",
"Failed to initialize OpenGL with GTK"), (NULL));
return FALSE;
}
if (!base_sink->display)
base_sink->display = gtk_gst_gl_widget_get_display (gst_widget);
base_sink->display = gtk_gst_base_widget_get_display (base_widget);
if (!base_sink->context)
base_sink->context = gtk_gst_gl_widget_get_context (gst_widget);
base_sink->context = gtk_gst_base_widget_get_context (base_widget);
if (!base_sink->gtk_context)
base_sink->gtk_context = gtk_gst_gl_widget_get_gtk_context (gst_widget);
base_sink->gtk_context = gtk_gst_base_widget_get_gtk_context (base_widget);
if (!base_sink->display || !base_sink->context || !base_sink->gtk_context) {
GST_ELEMENT_ERROR (bsink, RESOURCE, NOT_FOUND, ("%s",

694
lib/gst/clapper/gtk4/gtkgstbasewidget.c
View File

@@ -24,8 +24,30 @@
#endif
#include <stdio.h>
#include <gst/gl/gstglfuncs.h>
#include <gst/video/video.h>
#include "gtkgstbasewidget.h"
#include "gstgtkutils.h"
#if GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11)
#include <gdk/x11/gdkx.h>
#include <gst/gl/x11/gstgldisplay_x11.h>
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && defined (GDK_WINDOWING_WAYLAND)
#include <gdk/wayland/gdkwayland.h>
#include <gst/gl/wayland/gstgldisplay_wayland.h>
#endif
/**
* SECTION:gtkgstbasewidget
* @title: GtkGstBaseWidget
* @short_description: a #GtkGLArea that renders GStreamer video #GstBuffers
* @see_also: #GtkGLArea, #GstBuffer
*
* #GtkGstBaseWidget is an #GtkWidget that renders GStreamer video buffers.
*/
GST_DEBUG_CATEGORY (gst_debug_gtk_base_widget);
#define GST_CAT_DEFAULT gst_debug_gtk_base_widget
@@ -35,6 +57,39 @@ GST_DEBUG_CATEGORY (gst_debug_gtk_base_widget);
#define DEFAULT_PAR_D 1
#define DEFAULT_IGNORE_TEXTURES FALSE
struct _GtkGstBaseWidgetPrivate
{
gboolean initiated;
GstGLDisplay *display;
GdkGLContext *gdk_context;
GstGLContext *other_context;
GstGLContext *context;
GstGLUpload *upload;
GstGLShader *shader;
GLuint vao;
GLuint vertex_buffer;
GLint attr_position;
GLint attr_texture;
GLuint current_tex;
GstGLOverlayCompositor *overlay_compositor;
};
static const GLfloat vertices[] = {
1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 0.0f, 0.0f,
-1.0f, -1.0f, 0.0f, 0.0f, 1.0f,
1.0f, -1.0f, 0.0f, 1.0f, 1.0f
};
static const GLushort indices[] = {
0, 1, 2, 0, 2, 3
};
G_DEFINE_TYPE_WITH_CODE (GtkGstBaseWidget, gtk_gst_base_widget, GTK_TYPE_GL_AREA,
G_ADD_PRIVATE (GtkGstBaseWidget)
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "gtkgstbasewidget", 0,
"GTK Gst Base Widget"));
enum
{
PROP_0,
@@ -47,10 +102,10 @@ static void
gtk_gst_base_widget_get_preferred_width (GtkWidget * widget, gint * min,
gint * natural)
{
GtkGstBaseWidget *gst_widget = (GtkGstBaseWidget *) widget;
gint video_width = gst_widget->display_width;
GtkGstBaseWidget *base_widget = (GtkGstBaseWidget *) widget;
gint video_width = base_widget->display_width;
if (!gst_widget->negotiated)
if (!base_widget->negotiated)
video_width = 10;
if (min)
@@ -63,10 +118,10 @@ static void
gtk_gst_base_widget_get_preferred_height (GtkWidget * widget, gint * min,
gint * natural)
{
GtkGstBaseWidget *gst_widget = (GtkGstBaseWidget *) widget;
gint video_height = gst_widget->display_height;
GtkGstBaseWidget *base_widget = (GtkGstBaseWidget *) widget;
gint video_height = base_widget->display_height;
if (!gst_widget->negotiated)
if (!base_widget->negotiated)
video_height = 10;
if (min)
@@ -410,98 +465,288 @@ gtk_gst_base_widget_motion_event (GtkEventControllerMotion * motion_controller,
return FALSE;
}
void
gtk_gst_base_widget_class_init (GtkGstBaseWidgetClass * klass)
static void
gtk_gst_base_widget_bind_buffer (GtkGstBaseWidget * base_widget)
{
GObjectClass *gobject_klass = (GObjectClass *) klass;
GtkWidgetClass *widget_klass = (GtkWidgetClass *) klass;
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
const GstGLFuncs *gl = priv->context->gl_vtable;
gobject_klass->set_property = gtk_gst_base_widget_set_property;
gobject_klass->get_property = gtk_gst_base_widget_get_property;
gl->BindBuffer (GL_ARRAY_BUFFER, priv->vertex_buffer);
g_object_class_install_property (gobject_klass, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
DEFAULT_FORCE_ASPECT_RATIO,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Load the vertex position */
gl->VertexAttribPointer (priv->attr_position, 3, GL_FLOAT, GL_FALSE,
5 * sizeof (GLfloat), (void *) 0);
g_object_class_install_property (gobject_klass, PROP_PIXEL_ASPECT_RATIO,
gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
"The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/* Load the texture coordinate */
gl->VertexAttribPointer (priv->attr_texture, 2, GL_FLOAT, GL_FALSE,
5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
g_object_class_install_property (gobject_klass, PROP_IGNORE_TEXTURES,
g_param_spec_boolean ("ignore-textures", "Ignore Textures",
"When enabled, textures will be ignored and not drawn",
DEFAULT_IGNORE_TEXTURES, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
widget_klass->measure = gtk_gst_base_widget_measure;
widget_klass->size_allocate = gtk_gst_base_widget_size_allocate;
GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_base_widget, "gtkbasewidget", 0,
"GTK Video Base Widget");
gl->EnableVertexAttribArray (priv->attr_position);
gl->EnableVertexAttribArray (priv->attr_texture);
}
void
gtk_gst_base_widget_init (GtkGstBaseWidget * widget)
static void
gtk_gst_base_widget_unbind_buffer (GtkGstBaseWidget * base_widget)
{
widget->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
widget->par_n = DEFAULT_PAR_N;
widget->par_d = DEFAULT_PAR_D;
widget->ignore_textures = DEFAULT_IGNORE_TEXTURES;
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
const GstGLFuncs *gl = priv->context->gl_vtable;
gst_video_info_init (&widget->v_info);
gst_video_info_init (&widget->pending_v_info);
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
g_weak_ref_init (&widget->element, NULL);
g_mutex_init (&widget->lock);
widget->key_controller = gtk_event_controller_key_new ();
g_signal_connect (widget->key_controller, "key-pressed",
G_CALLBACK (gtk_gst_base_widget_key_event), NULL);
g_signal_connect (widget->key_controller, "key-released",
G_CALLBACK (gtk_gst_base_widget_key_event), NULL);
widget->motion_controller = gtk_event_controller_motion_new ();
g_signal_connect (widget->motion_controller, "motion",
G_CALLBACK (gtk_gst_base_widget_motion_event), NULL);
widget->click_gesture = gtk_gesture_click_new ();
g_signal_connect (widget->click_gesture, "pressed",
G_CALLBACK (gtk_gst_base_widget_button_event), NULL);
g_signal_connect (widget->click_gesture, "released",
G_CALLBACK (gtk_gst_base_widget_button_event), NULL);
/* Otherwise widget in grid will appear as a 1x1px
* video which might be misleading for users */
gtk_widget_set_hexpand (GTK_WIDGET (widget), TRUE);
gtk_widget_set_vexpand (GTK_WIDGET (widget), TRUE);
gtk_widget_set_focusable (GTK_WIDGET (widget), TRUE);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (widget->click_gesture),
GDK_BUTTON_PRIMARY);
gtk_widget_add_controller (GTK_WIDGET (widget), widget->key_controller);
gtk_widget_add_controller (GTK_WIDGET (widget), widget->motion_controller);
gtk_widget_add_controller (GTK_WIDGET (widget),
GTK_EVENT_CONTROLLER (widget->click_gesture));
gtk_widget_set_can_focus (GTK_WIDGET (widget), TRUE);
gl->DisableVertexAttribArray (priv->attr_position);
gl->DisableVertexAttribArray (priv->attr_texture);
}
void
static void
gtk_gst_base_widget_init_redisplay (GtkGstBaseWidget * base_widget)
{
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
const GstGLFuncs *gl = priv->context->gl_vtable;
GError *error = NULL;
gst_gl_insert_debug_marker (priv->other_context, "initializing redisplay");
if (!(priv->shader = gst_gl_shader_new_default (priv->context, &error))) {
GST_ERROR ("Failed to initialize shader: %s", error->message);
return;
}
priv->attr_position =
gst_gl_shader_get_attribute_location (priv->shader, "a_position");
priv->attr_texture =
gst_gl_shader_get_attribute_location (priv->shader, "a_texcoord");
if (gl->GenVertexArrays) {
gl->GenVertexArrays (1, &priv->vao);
gl->BindVertexArray (priv->vao);
}
gl->GenBuffers (1, &priv->vertex_buffer);
gl->BindBuffer (GL_ARRAY_BUFFER, priv->vertex_buffer);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
gtk_gst_base_widget_bind_buffer (base_widget);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
priv->overlay_compositor =
gst_gl_overlay_compositor_new (priv->other_context);
priv->initiated = TRUE;
}
static inline void
_draw_black (GstGLContext * context)
{
const GstGLFuncs *gl = context->gl_vtable;
gst_gl_insert_debug_marker (context, "rendering black");
gl->ClearColor (0.0, 0.0, 0.0, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT);
}
static inline void
_draw_black_with_gdk (GdkGLContext * gdk_context)
{
GST_DEBUG ("rendering empty frame with gdk context %p", gdk_context);
glClearColor (0.0, 0.0, 0.0, 1.0);
glClear (GL_COLOR_BUFFER_BIT);
}
static gboolean
gtk_gst_base_widget_render (GtkGLArea * widget, GdkGLContext * context)
{
GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (widget);
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
const GstGLFuncs *gl;
GTK_GST_BASE_WIDGET_LOCK (widget);
/* Draw black with GDK context when priv is not available yet.
GTK calls render with GDK context already active. */
if (!priv->context || !priv->other_context || base_widget->ignore_textures) {
_draw_black_with_gdk (context);
goto done;
}
gst_gl_context_activate (priv->other_context, TRUE);
if (!priv->initiated || !base_widget->negotiated) {
if (!priv->initiated)
gtk_gst_base_widget_init_redisplay (base_widget);
_draw_black (priv->other_context);
goto done;
}
/* Upload latest buffer */
if (base_widget->pending_buffer) {
GstBuffer *buffer = base_widget->pending_buffer;
GstVideoFrame gl_frame;
GstGLSyncMeta *sync_meta;
if (!gst_video_frame_map (&gl_frame, &base_widget->v_info, buffer,
GST_MAP_READ | GST_MAP_GL)) {
_draw_black (priv->other_context);
goto done;
}
priv->current_tex = *(guint *) gl_frame.data[0];
gst_gl_overlay_compositor_upload_overlays (priv->overlay_compositor,
buffer);
sync_meta = gst_buffer_get_gl_sync_meta (buffer);
if (sync_meta) {
/* XXX: the set_sync() seems to be needed for resizing */
gst_gl_sync_meta_set_sync_point (sync_meta, priv->context);
gst_gl_sync_meta_wait (sync_meta, priv->other_context);
}
gst_video_frame_unmap (&gl_frame);
if (base_widget->buffer)
gst_buffer_unref (base_widget->buffer);
/* Keep the buffer to ensure current_tex stay valid */
base_widget->buffer = buffer;
base_widget->pending_buffer = NULL;
}
GST_DEBUG ("rendering buffer %p with gdk context %p",
base_widget->buffer, context);
/* Draw texture */
gl = priv->context->gl_vtable;
if (base_widget->force_aspect_ratio) {
GstVideoRectangle src, dst, result;
gl->ClearColor (0.0, 0.0, 0.0, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT);
src.x = 0;
src.y = 0;
src.w = base_widget->display_width;
src.h = base_widget->display_height;
dst.x = 0;
dst.y = 0;
dst.w = base_widget->scaled_width;
dst.h = base_widget->scaled_height;
gst_video_sink_center_rect (src, dst, &result, TRUE);
gl->Viewport (result.x, result.y, result.w, result.h);
}
gst_gl_shader_use (priv->shader);
if (gl->BindVertexArray)
gl->BindVertexArray (priv->vao);
gtk_gst_base_widget_bind_buffer (base_widget);
gl->ActiveTexture (GL_TEXTURE0);
gl->BindTexture (GL_TEXTURE_2D, priv->current_tex);
gst_gl_shader_set_uniform_1i (priv->shader, "tex", 0);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
if (gl->BindVertexArray)
gl->BindVertexArray (0);
else
gtk_gst_base_widget_unbind_buffer (base_widget);
gl->BindTexture (GL_TEXTURE_2D, 0);
/* Draw subtitles */
gst_gl_overlay_compositor_draw_overlays (priv->overlay_compositor);
done:
if (priv->other_context)
gst_gl_context_activate (priv->other_context, FALSE);
GTK_GST_BASE_WIDGET_UNLOCK (widget);
return FALSE;
}
static void
_reset_gl (GtkGstBaseWidget * base_widget)
{
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
const GstGLFuncs *gl = priv->other_context->gl_vtable;
if (!priv->gdk_context)
priv->gdk_context = gtk_gl_area_get_context (GTK_GL_AREA (base_widget));
if (priv->gdk_context == NULL)
return;
gdk_gl_context_make_current (priv->gdk_context);
gst_gl_context_activate (priv->other_context, TRUE);
if (priv->vao) {
gl->DeleteVertexArrays (1, &priv->vao);
priv->vao = 0;
}
if (priv->vertex_buffer) {
gl->DeleteBuffers (1, &priv->vertex_buffer);
priv->vertex_buffer = 0;
}
if (priv->upload) {
gst_object_unref (priv->upload);
priv->upload = NULL;
}
if (priv->shader) {
gst_object_unref (priv->shader);
priv->shader = NULL;
}
if (priv->overlay_compositor)
gst_object_unref (priv->overlay_compositor);
gst_gl_context_activate (priv->other_context, FALSE);
gst_object_unref (priv->other_context);
priv->other_context = NULL;
gdk_gl_context_clear_current ();
g_object_unref (priv->gdk_context);
priv->gdk_context = NULL;
}
static void
gtk_gst_base_widget_finalize (GObject * object)
{
GtkGstBaseWidget *widget = GTK_GST_BASE_WIDGET (object);
GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (object);
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
gst_buffer_replace (&widget->pending_buffer, NULL);
gst_buffer_replace (&widget->buffer, NULL);
g_mutex_clear (&widget->lock);
g_weak_ref_clear (&widget->element);
if (priv->other_context)
gst_gtk_invoke_on_main ((GThreadFunc) (GCallback) _reset_gl, base_widget);
if (widget->draw_id)
g_source_remove (widget->draw_id);
if (priv->context)
gst_object_unref (priv->context);
if (priv->display)
gst_object_unref (priv->display);
if (base_widget->draw_id)
g_source_remove (base_widget->draw_id);
gst_buffer_replace (&base_widget->pending_buffer, NULL);
gst_buffer_replace (&base_widget->buffer, NULL);
g_mutex_clear (&base_widget->lock);
g_weak_ref_clear (&base_widget->element);
G_OBJECT_CLASS (gtk_gst_base_widget_parent_class)->finalize (object);
}
void
@@ -552,3 +797,288 @@ gtk_gst_base_widget_set_buffer (GtkGstBaseWidget * widget, GstBuffer * buffer)
GTK_GST_BASE_WIDGET_UNLOCK (widget);
}
static void
_get_gl_context (GtkGstBaseWidget * base_widget)
{
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
GstGLPlatform platform = GST_GL_PLATFORM_NONE;
GstGLAPI gl_api = GST_GL_API_NONE;
guintptr gl_handle = 0;
gtk_widget_realize (GTK_WIDGET (base_widget));
if (priv->other_context)
gst_object_unref (priv->other_context);
priv->other_context = NULL;
if (priv->gdk_context)
g_object_unref (priv->gdk_context);
priv->gdk_context = gtk_gl_area_get_context (GTK_GL_AREA (base_widget));
if (priv->gdk_context == NULL) {
GError *error = gtk_gl_area_get_error (GTK_GL_AREA (base_widget));
GST_ERROR_OBJECT (base_widget, "Error creating GdkGLContext : %s",
error ? error->message : "No error set by Gdk");
g_clear_error (&error);
return;
}
g_object_ref (priv->gdk_context);
gdk_gl_context_make_current (priv->gdk_context);
#if GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11)
if (GST_IS_GL_DISPLAY_X11 (priv->display)) {
#if GST_GL_HAVE_PLATFORM_GLX
if (!gl_handle) {
platform = GST_GL_PLATFORM_GLX;
gl_handle = gst_gl_context_get_current_gl_context (platform);
}
#endif
#if GST_GL_HAVE_PLATFORM_EGL
if (!gl_handle) {
platform = GST_GL_PLATFORM_EGL;
gl_handle = gst_gl_context_get_current_gl_context (platform);
}
#endif
if (gl_handle) {
gl_api = gst_gl_context_get_current_gl_api (platform, NULL, NULL);
priv->other_context =
gst_gl_context_new_wrapped (priv->display, gl_handle,
platform, gl_api);
}
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && GST_GL_HAVE_PLATFORM_EGL && defined (GDK_WINDOWING_WAYLAND)
if (GST_IS_GL_DISPLAY_WAYLAND (priv->display)) {
platform = GST_GL_PLATFORM_EGL;
gl_api = gst_gl_context_get_current_gl_api (platform, NULL, NULL);
gl_handle = gst_gl_context_get_current_gl_context (platform);
if (gl_handle)
priv->other_context =
gst_gl_context_new_wrapped (priv->display, gl_handle,
platform, gl_api);
}
#endif
(void) platform;
(void) gl_api;
(void) gl_handle;
if (priv->other_context) {
GError *error = NULL;
GST_INFO ("Retrieved Gdk OpenGL context %" GST_PTR_FORMAT,
priv->other_context);
gst_gl_context_activate (priv->other_context, TRUE);
if (!gst_gl_context_fill_info (priv->other_context, &error)) {
GST_ERROR ("failed to retrieve gdk context info: %s", error->message);
g_clear_error (&error);
g_object_unref (priv->other_context);
priv->other_context = NULL;
} else {
gst_gl_context_activate (priv->other_context, FALSE);
}
} else {
GST_WARNING ("Could not retrieve Gdk OpenGL context");
}
}
static void
gtk_gst_base_widget_class_init (GtkGstBaseWidgetClass * klass)
{
GObjectClass *gobject_klass = (GObjectClass *) klass;
GtkWidgetClass *widget_klass = (GtkWidgetClass *) klass;
GtkGLAreaClass *gl_area_klass = (GtkGLAreaClass *) klass;
gobject_klass->set_property = gtk_gst_base_widget_set_property;
gobject_klass->get_property = gtk_gst_base_widget_get_property;
gobject_klass->finalize = gtk_gst_base_widget_finalize;
g_object_class_install_property (gobject_klass, PROP_FORCE_ASPECT_RATIO,
g_param_spec_boolean ("force-aspect-ratio",
"Force aspect ratio",
"When enabled, scaling will respect original aspect ratio",
DEFAULT_FORCE_ASPECT_RATIO,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_PIXEL_ASPECT_RATIO,
gst_param_spec_fraction ("pixel-aspect-ratio", "Pixel Aspect Ratio",
"The pixel aspect ratio of the device", DEFAULT_PAR_N, DEFAULT_PAR_D,
G_MAXINT, 1, 1, 1, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_klass, PROP_IGNORE_TEXTURES,
g_param_spec_boolean ("ignore-textures", "Ignore Textures",
"When enabled, textures will be ignored and not drawn",
DEFAULT_IGNORE_TEXTURES, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
widget_klass->measure = gtk_gst_base_widget_measure;
widget_klass->size_allocate = gtk_gst_base_widget_size_allocate;
gl_area_klass->render = gtk_gst_base_widget_render;
GST_DEBUG_CATEGORY_INIT (gst_debug_gtk_base_widget, "gtkbasewidget", 0,
"GTK Video Base Widget");
}
static void
gtk_gst_base_widget_init (GtkGstBaseWidget * widget)
{
GdkDisplay *display;
GtkGstBaseWidgetPrivate *priv;
widget->force_aspect_ratio = DEFAULT_FORCE_ASPECT_RATIO;
widget->par_n = DEFAULT_PAR_N;
widget->par_d = DEFAULT_PAR_D;
widget->ignore_textures = DEFAULT_IGNORE_TEXTURES;
gst_video_info_init (&widget->v_info);
gst_video_info_init (&widget->pending_v_info);
g_weak_ref_init (&widget->element, NULL);
g_mutex_init (&widget->lock);
widget->key_controller = gtk_event_controller_key_new ();
g_signal_connect (widget->key_controller, "key-pressed",
G_CALLBACK (gtk_gst_base_widget_key_event), NULL);
g_signal_connect (widget->key_controller, "key-released",
G_CALLBACK (gtk_gst_base_widget_key_event), NULL);
widget->motion_controller = gtk_event_controller_motion_new ();
g_signal_connect (widget->motion_controller, "motion",
G_CALLBACK (gtk_gst_base_widget_motion_event), NULL);
widget->click_gesture = gtk_gesture_click_new ();
g_signal_connect (widget->click_gesture, "pressed",
G_CALLBACK (gtk_gst_base_widget_button_event), NULL);
g_signal_connect (widget->click_gesture, "released",
G_CALLBACK (gtk_gst_base_widget_button_event), NULL);
/* Otherwise widget in grid will appear as a 1x1px
* video which might be misleading for users */
gtk_widget_set_hexpand (GTK_WIDGET (widget), TRUE);
gtk_widget_set_vexpand (GTK_WIDGET (widget), TRUE);
gtk_widget_set_focusable (GTK_WIDGET (widget), TRUE);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (widget->click_gesture),
GDK_BUTTON_PRIMARY);
gtk_widget_add_controller (GTK_WIDGET (widget), widget->key_controller);
gtk_widget_add_controller (GTK_WIDGET (widget), widget->motion_controller);
gtk_widget_add_controller (GTK_WIDGET (widget),
GTK_EVENT_CONTROLLER (widget->click_gesture));
gtk_widget_set_can_focus (GTK_WIDGET (widget), TRUE);
widget->priv = priv = gtk_gst_base_widget_get_instance_private (widget);
display = gdk_display_get_default ();
#if GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11)
if (GDK_IS_X11_DISPLAY (display)) {
priv->display = (GstGLDisplay *)
gst_gl_display_x11_new_with_display (gdk_x11_display_get_xdisplay
(display));
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && defined (GDK_WINDOWING_WAYLAND)
if (GDK_IS_WAYLAND_DISPLAY (display)) {
struct wl_display *wayland_display =
gdk_wayland_display_get_wl_display (display);
priv->display = (GstGLDisplay *)
gst_gl_display_wayland_new_with_display (wayland_display);
}
#endif
(void) display;
if (!priv->display)
priv->display = gst_gl_display_new ();
GST_INFO ("Created %" GST_PTR_FORMAT, priv->display);
gtk_gl_area_set_auto_render (GTK_GL_AREA (widget), FALSE);
}
GtkWidget *
gtk_gst_base_widget_new (void)
{
return (GtkWidget *) g_object_new (GTK_TYPE_GST_BASE_WIDGET, NULL);
}
gboolean
gtk_gst_base_widget_init_winsys (GtkGstBaseWidget * base_widget)
{
GtkGstBaseWidgetPrivate *priv = base_widget->priv;
GError *error = NULL;
g_return_val_if_fail (GTK_IS_GST_BASE_WIDGET (base_widget), FALSE);
g_return_val_if_fail (priv->display != NULL, FALSE);
GTK_GST_BASE_WIDGET_LOCK (base_widget);
if (priv->display && priv->gdk_context && priv->other_context) {
GST_TRACE ("have already initialized contexts");
GTK_GST_BASE_WIDGET_UNLOCK (base_widget);
return TRUE;
}
if (!priv->other_context) {
GTK_GST_BASE_WIDGET_UNLOCK (base_widget);
gst_gtk_invoke_on_main ((GThreadFunc) (GCallback) _get_gl_context, base_widget);
GTK_GST_BASE_WIDGET_LOCK (base_widget);
}
if (!GST_IS_GL_CONTEXT (priv->other_context)) {
GST_FIXME ("Could not retrieve Gdk OpenGL context");
GTK_GST_BASE_WIDGET_UNLOCK (base_widget);
return FALSE;
}
GST_OBJECT_LOCK (priv->display);
if (!gst_gl_display_create_context (priv->display, priv->other_context,
&priv->context, &error)) {
GST_WARNING ("Could not create OpenGL context: %s",
error ? error->message : "Unknown");
g_clear_error (&error);
GST_OBJECT_UNLOCK (priv->display);
GTK_GST_BASE_WIDGET_UNLOCK (base_widget);
return FALSE;
}
gst_gl_display_add_context (priv->display, priv->context);
GST_OBJECT_UNLOCK (priv->display);
GTK_GST_BASE_WIDGET_UNLOCK (base_widget);
return TRUE;
}
GstGLContext *
gtk_gst_base_widget_get_gtk_context (GtkGstBaseWidget * base_widget)
{
if (!base_widget->priv->other_context)
return NULL;
return gst_object_ref (base_widget->priv->other_context);
}
GstGLContext *
gtk_gst_base_widget_get_context (GtkGstBaseWidget * base_widget)
{
if (!base_widget->priv->context)
return NULL;
return gst_object_ref (base_widget->priv->context);
}
GstGLDisplay *
gtk_gst_base_widget_get_display (GtkGstBaseWidget * base_widget)
{
if (!base_widget->priv->display)
return NULL;
return gst_object_ref (base_widget->priv->display);
}

40
lib/gst/clapper/gtk4/gtkgstbasewidget.h
View File

@@ -25,22 +25,29 @@
#include <gtk/gtk.h>
#include <gst/gst.h>
#include <gst/video/video.h>
#define GTK_GST_BASE_WIDGET(w) ((GtkGstBaseWidget *)(w))
#define GTK_GST_BASE_WIDGET_CLASS(k) ((GtkGstBaseWidgetClass *)(k))
#define GTK_GST_BASE_WIDGET_LOCK(w) g_mutex_lock(&((GtkGstBaseWidget*)(w))->lock)
#define GTK_GST_BASE_WIDGET_UNLOCK(w) g_mutex_unlock(&((GtkGstBaseWidget*)(w))->lock)
#include <gst/gl/gl.h>
G_BEGIN_DECLS
GType gtk_gst_base_widget_get_type (void);
#define GTK_TYPE_GST_BASE_WIDGET (gtk_gst_base_widget_get_type())
#define GTK_GST_BASE_WIDGET(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GTK_TYPE_GST_BASE_WIDGET,GtkGstBaseWidget))
#define GTK_GST_BASE_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GTK_TYPE_GST_BASE_WIDGET,GtkGstBaseWidgetClass))
#define GTK_IS_GST_BASE_WIDGET(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GTK_TYPE_GST_BASE_WIDGET))
#define GTK_IS_GST_BASE_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GTK_TYPE_GST_BASE_WIDGET))
#define GTK_GST_BASE_WIDGET_CAST(obj) ((GtkGstBaseWidget*)(obj))
#define GTK_GST_BASE_WIDGET_LOCK(w) g_mutex_lock(&((GtkGstBaseWidget*)(w))->lock)
#define GTK_GST_BASE_WIDGET_UNLOCK(w) g_mutex_unlock(&((GtkGstBaseWidget*)(w))->lock)
typedef struct _GtkGstBaseWidget GtkGstBaseWidget;
typedef struct _GtkGstBaseWidgetClass GtkGstBaseWidgetClass;
typedef struct _GtkGstBaseWidgetPrivate GtkGstBaseWidgetPrivate;
struct _GtkGstBaseWidget
{
union {
GtkGLArea gl_area;
} parent;
/* <private> */
GtkGLArea parent;
GtkGstBaseWidgetPrivate *priv;
/* properties */
gboolean force_aspect_ratio;
@@ -80,22 +87,21 @@ struct _GtkGstBaseWidget
struct _GtkGstBaseWidgetClass
{
union {
GtkGLAreaClass gl_area_class;
} parent_class;
GtkGLAreaClass parent_class;
};
/* For implementer */
void gtk_gst_base_widget_class_init (GtkGstBaseWidgetClass * klass);
void gtk_gst_base_widget_init (GtkGstBaseWidget * widget);
void gtk_gst_base_widget_finalize (GObject * object);
/* API */
gboolean gtk_gst_base_widget_set_format (GtkGstBaseWidget * widget, GstVideoInfo * v_info);
void gtk_gst_base_widget_set_buffer (GtkGstBaseWidget * widget, GstBuffer * buffer);
void gtk_gst_base_widget_set_element (GtkGstBaseWidget * widget, GstElement * element);
GtkWidget * gtk_gst_base_widget_new (void);
gboolean gtk_gst_base_widget_init_winsys (GtkGstBaseWidget * widget);
GstGLDisplay * gtk_gst_base_widget_get_display (GtkGstBaseWidget * widget);
GstGLContext * gtk_gst_base_widget_get_context (GtkGstBaseWidget * widget);
GstGLContext * gtk_gst_base_widget_get_gtk_context (GtkGstBaseWidget * widget);
G_END_DECLS
#endif /* __GTK_GST_BASE_WIDGET_H__ */

584
lib/gst/clapper/gtk4/gtkgstglwidget.c
View File

@@ -1,584 +0,0 @@
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
* Copyright (C) 2020 Rafał Dzięgiel <rafostar.github@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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include "gtkgstglwidget.h"
#include "gstgtkutils.h"
#include <gst/gl/gstglfuncs.h>
#include <gst/video/video.h>
#if GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11)
#include <gdk/x11/gdkx.h>
#include <gst/gl/x11/gstgldisplay_x11.h>
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && defined (GDK_WINDOWING_WAYLAND)
#include <gdk/wayland/gdkwayland.h>
#include <gst/gl/wayland/gstgldisplay_wayland.h>
#endif
/**
* SECTION:gtkgstglwidget
* @title: GtkGstGlWidget
* @short_description: a #GtkGLArea that renders GStreamer video #GstBuffers
* @see_also: #GtkGLArea, #GstBuffer
*
* #GtkGstGLWidget is an #GtkWidget that renders GStreamer video buffers.
*/
#define GST_CAT_DEFAULT gtk_gst_gl_widget_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
struct _GtkGstGLWidgetPrivate
{
gboolean initiated;
GstGLDisplay *display;
GdkGLContext *gdk_context;
GstGLContext *other_context;
GstGLContext *context;
GstGLUpload *upload;
GstGLShader *shader;
GLuint vao;
GLuint vertex_buffer;
GLint attr_position;
GLint attr_texture;
GLuint current_tex;
GstGLOverlayCompositor *overlay_compositor;
};
static const GLfloat vertices[] = {
1.0f, 1.0f, 0.0f, 1.0f, 0.0f,
-1.0f, 1.0f, 0.0f, 0.0f, 0.0f,
-1.0f, -1.0f, 0.0f, 0.0f, 1.0f,
1.0f, -1.0f, 0.0f, 1.0f, 1.0f
};
static const GLushort indices[] = {
0, 1, 2, 0, 2, 3
};
G_DEFINE_TYPE_WITH_CODE (GtkGstGLWidget, gtk_gst_gl_widget, GTK_TYPE_GL_AREA,
G_ADD_PRIVATE (GtkGstGLWidget)
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "gtkgstglwidget", 0,
"GTK Gst GL Widget"));
static void
gtk_gst_gl_widget_bind_buffer (GtkGstGLWidget * gst_widget)
{
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
const GstGLFuncs *gl = priv->context->gl_vtable;
gl->BindBuffer (GL_ARRAY_BUFFER, priv->vertex_buffer);
/* Load the vertex position */
gl->VertexAttribPointer (priv->attr_position, 3, GL_FLOAT, GL_FALSE,
5 * sizeof (GLfloat), (void *) 0);
/* Load the texture coordinate */
gl->VertexAttribPointer (priv->attr_texture, 2, GL_FLOAT, GL_FALSE,
5 * sizeof (GLfloat), (void *) (3 * sizeof (GLfloat)));
gl->EnableVertexAttribArray (priv->attr_position);
gl->EnableVertexAttribArray (priv->attr_texture);
}
static void
gtk_gst_gl_widget_unbind_buffer (GtkGstGLWidget * gst_widget)
{
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
const GstGLFuncs *gl = priv->context->gl_vtable;
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
gl->DisableVertexAttribArray (priv->attr_position);
gl->DisableVertexAttribArray (priv->attr_texture);
}
static void
gtk_gst_gl_widget_init_redisplay (GtkGstGLWidget * gst_widget)
{
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
const GstGLFuncs *gl = priv->context->gl_vtable;
GError *error = NULL;
gst_gl_insert_debug_marker (priv->other_context, "initializing redisplay");
if (!(priv->shader = gst_gl_shader_new_default (priv->context, &error))) {
GST_ERROR ("Failed to initialize shader: %s", error->message);
return;
}
priv->attr_position =
gst_gl_shader_get_attribute_location (priv->shader, "a_position");
priv->attr_texture =
gst_gl_shader_get_attribute_location (priv->shader, "a_texcoord");
if (gl->GenVertexArrays) {
gl->GenVertexArrays (1, &priv->vao);
gl->BindVertexArray (priv->vao);
}
gl->GenBuffers (1, &priv->vertex_buffer);
gl->BindBuffer (GL_ARRAY_BUFFER, priv->vertex_buffer);
gl->BufferData (GL_ARRAY_BUFFER, 4 * 5 * sizeof (GLfloat), vertices,
GL_STATIC_DRAW);
if (gl->GenVertexArrays) {
gtk_gst_gl_widget_bind_buffer (gst_widget);
gl->BindVertexArray (0);
}
gl->BindBuffer (GL_ARRAY_BUFFER, 0);
priv->overlay_compositor =
gst_gl_overlay_compositor_new (priv->other_context);
priv->initiated = TRUE;
}
static inline void
_draw_black (GstGLContext * context)
{
const GstGLFuncs *gl = context->gl_vtable;
gst_gl_insert_debug_marker (context, "rendering black");
gl->ClearColor (0.0, 0.0, 0.0, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT);
}
static inline void
_draw_black_with_gdk (GdkGLContext * gdk_context)
{
GST_DEBUG ("rendering empty frame with gdk context %p", gdk_context);
glClearColor (0.0, 0.0, 0.0, 1.0);
glClear (GL_COLOR_BUFFER_BIT);
}
static gboolean
gtk_gst_gl_widget_render (GtkGLArea * widget, GdkGLContext * context)
{
GtkGstGLWidget *gst_widget = GTK_GST_GL_WIDGET (widget);
GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (widget);
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
const GstGLFuncs *gl;
GTK_GST_BASE_WIDGET_LOCK (widget);
/* Draw black with GDK context when priv is not available yet.
GTK calls render with GDK context already active. */
if (!priv->context || !priv->other_context || base_widget->ignore_textures) {
_draw_black_with_gdk (context);
goto done;
}
gst_gl_context_activate (priv->other_context, TRUE);
if (!priv->initiated || !base_widget->negotiated) {
if (!priv->initiated)
gtk_gst_gl_widget_init_redisplay (gst_widget);
_draw_black (priv->other_context);
goto done;
}
/* Upload latest buffer */
if (base_widget->pending_buffer) {
GstBuffer *buffer = base_widget->pending_buffer;
GstVideoFrame gl_frame;
GstGLSyncMeta *sync_meta;
if (!gst_video_frame_map (&gl_frame, &base_widget->v_info, buffer,
GST_MAP_READ | GST_MAP_GL)) {
_draw_black (priv->other_context);
goto done;
}
priv->current_tex = *(guint *) gl_frame.data[0];
gst_gl_overlay_compositor_upload_overlays (priv->overlay_compositor,
buffer);
sync_meta = gst_buffer_get_gl_sync_meta (buffer);
if (sync_meta) {
/* XXX: the set_sync() seems to be needed for resizing */
gst_gl_sync_meta_set_sync_point (sync_meta, priv->context);
gst_gl_sync_meta_wait (sync_meta, priv->other_context);
}
gst_video_frame_unmap (&gl_frame);
if (base_widget->buffer)
gst_buffer_unref (base_widget->buffer);
/* Keep the buffer to ensure current_tex stay valid */
base_widget->buffer = buffer;
base_widget->pending_buffer = NULL;
}
GST_DEBUG ("rendering buffer %p with gdk context %p",
base_widget->buffer, context);
/* Draw texture */
gl = priv->context->gl_vtable;
if (base_widget->force_aspect_ratio) {
GstVideoRectangle src, dst, result;
gl->ClearColor (0.0, 0.0, 0.0, 1.0);
gl->Clear (GL_COLOR_BUFFER_BIT);
src.x = 0;
src.y = 0;
src.w = base_widget->display_width;
src.h = base_widget->display_height;
dst.x = 0;
dst.y = 0;
dst.w = base_widget->scaled_width;
dst.h = base_widget->scaled_height;
gst_video_sink_center_rect (src, dst, &result, TRUE);
gl->Viewport (result.x, result.y, result.w, result.h);
}
gst_gl_shader_use (priv->shader);
if (gl->BindVertexArray)
gl->BindVertexArray (priv->vao);
gtk_gst_gl_widget_bind_buffer (gst_widget);
gl->ActiveTexture (GL_TEXTURE0);
gl->BindTexture (GL_TEXTURE_2D, priv->current_tex);
gst_gl_shader_set_uniform_1i (priv->shader, "tex", 0);
gl->DrawElements (GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
if (gl->BindVertexArray)
gl->BindVertexArray (0);
else
gtk_gst_gl_widget_unbind_buffer (gst_widget);
gl->BindTexture (GL_TEXTURE_2D, 0);
/* Draw subtitles */
gst_gl_overlay_compositor_draw_overlays (priv->overlay_compositor);
done:
if (priv->other_context)
gst_gl_context_activate (priv->other_context, FALSE);
GTK_GST_BASE_WIDGET_UNLOCK (widget);
return FALSE;
}
static void
_reset_gl (GtkGstGLWidget * gst_widget)
{
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
const GstGLFuncs *gl = priv->other_context->gl_vtable;
if (!priv->gdk_context)
priv->gdk_context = gtk_gl_area_get_context (GTK_GL_AREA (gst_widget));
if (priv->gdk_context == NULL)
return;
gdk_gl_context_make_current (priv->gdk_context);
gst_gl_context_activate (priv->other_context, TRUE);
if (priv->vao) {
gl->DeleteVertexArrays (1, &priv->vao);
priv->vao = 0;
}
if (priv->vertex_buffer) {
gl->DeleteBuffers (1, &priv->vertex_buffer);
priv->vertex_buffer = 0;
}
if (priv->upload) {
gst_object_unref (priv->upload);
priv->upload = NULL;
}
if (priv->shader) {
gst_object_unref (priv->shader);
priv->shader = NULL;
}
if (priv->overlay_compositor)
gst_object_unref (priv->overlay_compositor);
gst_gl_context_activate (priv->other_context, FALSE);
gst_object_unref (priv->other_context);
priv->other_context = NULL;
gdk_gl_context_clear_current ();
g_object_unref (priv->gdk_context);
priv->gdk_context = NULL;
}
static void
gtk_gst_gl_widget_finalize (GObject * object)
{
GtkGstGLWidgetPrivate *priv = GTK_GST_GL_WIDGET (object)->priv;
GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (object);
if (priv->other_context)
gst_gtk_invoke_on_main ((GThreadFunc) (GCallback) _reset_gl, base_widget);
if (priv->context)
gst_object_unref (priv->context);
if (priv->display)
gst_object_unref (priv->display);
gtk_gst_base_widget_finalize (object);
G_OBJECT_CLASS (gtk_gst_gl_widget_parent_class)->finalize (object);
}
static void
gtk_gst_gl_widget_class_init (GtkGstGLWidgetClass * klass)
{
GObjectClass *gobject_klass = (GObjectClass *) klass;
GtkGLAreaClass *gl_widget_klass = (GtkGLAreaClass *) klass;
gtk_gst_base_widget_class_init (GTK_GST_BASE_WIDGET_CLASS (klass));
gobject_klass->finalize = gtk_gst_gl_widget_finalize;
gl_widget_klass->render = gtk_gst_gl_widget_render;
}
static void
gtk_gst_gl_widget_init (GtkGstGLWidget * gst_widget)
{
GtkGstBaseWidget *base_widget = GTK_GST_BASE_WIDGET (gst_widget);
GdkDisplay *display;
GtkGstGLWidgetPrivate *priv;
gtk_gst_base_widget_init (base_widget);
gst_widget->priv = priv = gtk_gst_gl_widget_get_instance_private (gst_widget);
display = gdk_display_get_default ();
#if GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11)
if (GDK_IS_X11_DISPLAY (display)) {
priv->display = (GstGLDisplay *)
gst_gl_display_x11_new_with_display (gdk_x11_display_get_xdisplay
(display));
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && defined (GDK_WINDOWING_WAYLAND)
if (GDK_IS_WAYLAND_DISPLAY (display)) {
struct wl_display *wayland_display =
gdk_wayland_display_get_wl_display (display);
priv->display = (GstGLDisplay *)
gst_gl_display_wayland_new_with_display (wayland_display);
}
#endif
(void) display;
if (!priv->display)
priv->display = gst_gl_display_new ();
GST_INFO ("Created %" GST_PTR_FORMAT, priv->display);
gtk_gl_area_set_auto_render (GTK_GL_AREA (gst_widget), FALSE);
}
static void
_get_gl_context (GtkGstGLWidget * gst_widget)
{
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
GstGLPlatform platform = GST_GL_PLATFORM_NONE;
GstGLAPI gl_api = GST_GL_API_NONE;
guintptr gl_handle = 0;
gtk_widget_realize (GTK_WIDGET (gst_widget));
if (priv->other_context)
gst_object_unref (priv->other_context);
priv->other_context = NULL;
if (priv->gdk_context)
g_object_unref (priv->gdk_context);
priv->gdk_context = gtk_gl_area_get_context (GTK_GL_AREA (gst_widget));
if (priv->gdk_context == NULL) {
GError *error = gtk_gl_area_get_error (GTK_GL_AREA (gst_widget));
GST_ERROR_OBJECT (gst_widget, "Error creating GdkGLContext : %s",
error ? error->message : "No error set by Gdk");
g_clear_error (&error);
return;
}
g_object_ref (priv->gdk_context);
gdk_gl_context_make_current (priv->gdk_context);
#if GST_GL_HAVE_WINDOW_X11 && defined (GDK_WINDOWING_X11)
if (GST_IS_GL_DISPLAY_X11 (priv->display)) {
#if GST_GL_HAVE_PLATFORM_GLX
if (!gl_handle) {
platform = GST_GL_PLATFORM_GLX;
gl_handle = gst_gl_context_get_current_gl_context (platform);
}
#endif
#if GST_GL_HAVE_PLATFORM_EGL
if (!gl_handle) {
platform = GST_GL_PLATFORM_EGL;
gl_handle = gst_gl_context_get_current_gl_context (platform);
}
#endif
if (gl_handle) {
gl_api = gst_gl_context_get_current_gl_api (platform, NULL, NULL);
priv->other_context =
gst_gl_context_new_wrapped (priv->display, gl_handle,
platform, gl_api);
}
}
#endif
#if GST_GL_HAVE_WINDOW_WAYLAND && GST_GL_HAVE_PLATFORM_EGL && defined (GDK_WINDOWING_WAYLAND)
if (GST_IS_GL_DISPLAY_WAYLAND (priv->display)) {
platform = GST_GL_PLATFORM_EGL;
gl_api = gst_gl_context_get_current_gl_api (platform, NULL, NULL);
gl_handle = gst_gl_context_get_current_gl_context (platform);
if (gl_handle)
priv->other_context =
gst_gl_context_new_wrapped (priv->display, gl_handle,
platform, gl_api);
}
#endif
(void) platform;
(void) gl_api;
(void) gl_handle;
if (priv->other_context) {
GError *error = NULL;
GST_INFO ("Retrieved Gdk OpenGL context %" GST_PTR_FORMAT,
priv->other_context);
gst_gl_context_activate (priv->other_context, TRUE);
if (!gst_gl_context_fill_info (priv->other_context, &error)) {
GST_ERROR ("failed to retrieve gdk context info: %s", error->message);
g_clear_error (&error);
g_object_unref (priv->other_context);
priv->other_context = NULL;
} else {
gst_gl_context_activate (priv->other_context, FALSE);
}
} else {
GST_WARNING ("Could not retrieve Gdk OpenGL context");
}
}
GtkWidget *
gtk_gst_gl_widget_new (void)
{
return (GtkWidget *) g_object_new (GTK_TYPE_GST_GL_WIDGET, NULL);
}
gboolean
gtk_gst_gl_widget_init_winsys (GtkGstGLWidget * gst_widget)
{
GtkGstGLWidgetPrivate *priv = gst_widget->priv;
GError *error = NULL;
g_return_val_if_fail (GTK_IS_GST_GL_WIDGET (gst_widget), FALSE);
g_return_val_if_fail (priv->display != NULL, FALSE);
GTK_GST_BASE_WIDGET_LOCK (gst_widget);
if (priv->display && priv->gdk_context && priv->other_context) {
GST_TRACE ("have already initialized contexts");
GTK_GST_BASE_WIDGET_UNLOCK (gst_widget);
return TRUE;
}
if (!priv->other_context) {
GTK_GST_BASE_WIDGET_UNLOCK (gst_widget);
gst_gtk_invoke_on_main ((GThreadFunc) (GCallback) _get_gl_context, gst_widget);
GTK_GST_BASE_WIDGET_LOCK (gst_widget);
}
if (!GST_IS_GL_CONTEXT (priv->other_context)) {
GST_FIXME ("Could not retrieve Gdk OpenGL context");
GTK_GST_BASE_WIDGET_UNLOCK (gst_widget);
return FALSE;
}
GST_OBJECT_LOCK (priv->display);
if (!gst_gl_display_create_context (priv->display, priv->other_context,
&priv->context, &error)) {
GST_WARNING ("Could not create OpenGL context: %s",
error ? error->message : "Unknown");
g_clear_error (&error);
GST_OBJECT_UNLOCK (priv->display);
GTK_GST_BASE_WIDGET_UNLOCK (gst_widget);
return FALSE;
}
gst_gl_display_add_context (priv->display, priv->context);
GST_OBJECT_UNLOCK (priv->display);
GTK_GST_BASE_WIDGET_UNLOCK (gst_widget);
return TRUE;
}
GstGLContext *
gtk_gst_gl_widget_get_gtk_context (GtkGstGLWidget * gst_widget)
{
if (!gst_widget->priv->other_context)
return NULL;
return gst_object_ref (gst_widget->priv->other_context);
}
GstGLContext *
gtk_gst_gl_widget_get_context (GtkGstGLWidget * gst_widget)
{
if (!gst_widget->priv->context)
return NULL;
return gst_object_ref (gst_widget->priv->context);
}
GstGLDisplay *
gtk_gst_gl_widget_get_display (GtkGstGLWidget * gst_widget)
{
if (!gst_widget->priv->display)
return NULL;
return gst_object_ref (gst_widget->priv->display);
}

77
lib/gst/clapper/gtk4/gtkgstglwidget.h
View File

@@ -1,77 +0,0 @@
/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.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.
*/
#ifndef __GTK_GST_GL_WIDGET_H__
#define __GTK_GST_GL_WIDGET_H__
#include <gtk/gtk.h>
#include <gst/gst.h>
#include <gst/gl/gl.h>
#include "gtkgstbasewidget.h"
G_BEGIN_DECLS
GType gtk_gst_gl_widget_get_type (void);
#define GTK_TYPE_GST_GL_WIDGET (gtk_gst_gl_widget_get_type())
#define GTK_GST_GL_WIDGET(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GTK_TYPE_GST_GL_WIDGET,GtkGstGLWidget))
#define GTK_GST_GL_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GTK_TYPE_GST_GL_WIDGET,GtkGstGLWidgetClass))
#define GTK_IS_GST_GL_WIDGET(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GTK_TYPE_GST_GL_WIDGET))
#define GTK_IS_GST_GL_WIDGET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GTK_TYPE_GST_GL_WIDGET))
#define GTK_GST_GL_WIDGET_CAST(obj) ((GtkGstGLWidget*)(obj))
typedef struct _GtkGstGLWidget GtkGstGLWidget;
typedef struct _GtkGstGLWidgetClass GtkGstGLWidgetClass;
typedef struct _GtkGstGLWidgetPrivate GtkGstGLWidgetPrivate;
/**
* GtkGstGLWidget:
*
* Opaque #GtkGstGLWidget object
*/
struct _GtkGstGLWidget
{
/* <private> */
GtkGstBaseWidget base;
GtkGstGLWidgetPrivate *priv;
};
/**
* GtkGstGLWidgetClass:
*
* The #GtkGstGLWidgetClass struct only contains private data
*/
struct _GtkGstGLWidgetClass
{
/* <private> */
GtkGstBaseWidgetClass base_class;
};
GtkWidget * gtk_gst_gl_widget_new (void);
gboolean gtk_gst_gl_widget_init_winsys (GtkGstGLWidget * widget);
GstGLDisplay * gtk_gst_gl_widget_get_display (GtkGstGLWidget * widget);
GstGLContext * gtk_gst_gl_widget_get_context (GtkGstGLWidget * widget);
GstGLContext * gtk_gst_gl_widget_get_gtk_context (GtkGstGLWidget * widget);
G_END_DECLS
#endif /* __GTK_GST_GL_WIDGET_H__ */

1
lib/gst/clapper/meson.build
View File

@@ -11,7 +11,6 @@ gstclapper_sources = [
'gtk4/gstgtkbasesink.c',
'gtk4/gstgtkutils.c',
'gtk4/gtkgstbasewidget.c',
'gtk4/gtkgstglwidget.c',
]
gstclapper_headers = [
'clapper.h',