mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
223 lines
6.2 KiB
Objective-C
223 lines
6.2 KiB
Objective-C
/*
|
|
* GStreamer
|
|
* 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <Cocoa/Cocoa.h>
|
|
|
|
#include "gstglcontext_cocoa.h"
|
|
#include "gstgl_cocoa_private.h"
|
|
|
|
static gboolean gst_gl_context_cocoa_create_context (GstGLContext *context, GstGLAPI gl_api,
|
|
GstGLContext * other_context, GError **error);
|
|
static guintptr gst_gl_context_cocoa_get_gl_context (GstGLContext * window);
|
|
static gboolean gst_gl_context_cocoa_activate (GstGLContext * context, gboolean activate);
|
|
static GstGLAPI gst_gl_context_cocoa_get_gl_api (GstGLContext * context);
|
|
|
|
#define GST_GL_CONTEXT_COCOA_GET_PRIVATE(o) \
|
|
(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_GL_TYPE_CONTEXT_COCOA, GstGLContextCocoaPrivate))
|
|
|
|
G_DEFINE_TYPE (GstGLContextCocoa, gst_gl_context_cocoa, GST_GL_TYPE_CONTEXT);
|
|
|
|
static void
|
|
gst_gl_context_cocoa_class_init (GstGLContextCocoaClass * klass)
|
|
{
|
|
GstGLContextClass *context_class;
|
|
|
|
#ifndef GNUSTEP
|
|
NSAutoreleasePool* pool = nil;
|
|
#endif
|
|
|
|
context_class = (GstGLContextClass *) klass;
|
|
|
|
g_type_class_add_private (klass, sizeof (GstGLContextCocoaPrivate));
|
|
|
|
context_class->create_context =
|
|
GST_DEBUG_FUNCPTR (gst_gl_context_cocoa_create_context);
|
|
context_class->get_gl_context =
|
|
GST_DEBUG_FUNCPTR (gst_gl_context_cocoa_get_gl_context);
|
|
context_class->activate = GST_DEBUG_FUNCPTR (gst_gl_context_cocoa_activate);
|
|
context_class->get_gl_api =
|
|
GST_DEBUG_FUNCPTR (gst_gl_context_cocoa_get_gl_api);
|
|
|
|
#ifndef GNUSTEP
|
|
pool = [[NSAutoreleasePool alloc] init];
|
|
[NSApplication sharedApplication];
|
|
|
|
[pool release];
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
gst_gl_context_cocoa_init (GstGLContextCocoa * context)
|
|
{
|
|
context->priv = GST_GL_CONTEXT_COCOA_GET_PRIVATE (context);
|
|
}
|
|
|
|
/* Must be called in the gl thread */
|
|
GstGLContextCocoa *
|
|
gst_gl_context_cocoa_new (void)
|
|
{
|
|
GstGLContextCocoa *context = g_object_new (GST_GL_TYPE_CONTEXT_COCOA, NULL);
|
|
|
|
return context;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gl_context_cocoa_create_context (GstGLContext *context, GstGLAPI gl_api,
|
|
GstGLContext *other_context, GError **error)
|
|
{
|
|
GstGLContextCocoa *context_cocoa = GST_GL_CONTEXT_COCOA (context);
|
|
GstGLContextCocoaPrivate *priv = context_cocoa->priv;
|
|
GstGLWindow *window = gst_gl_context_get_window (context);
|
|
GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
|
|
GstGLNSOpenGLView *glView = nil;
|
|
NSWindow *window_handle;
|
|
NSRect rect;
|
|
NSAutoreleasePool *pool;
|
|
NSOpenGLPixelFormat *fmt = nil;
|
|
NSOpenGLContext *glContext = nil;
|
|
NSOpenGLPixelFormatAttribute attribs[] = {
|
|
NSOpenGLPFADoubleBuffer,
|
|
NSOpenGLPFAAccumSize, 32,
|
|
0
|
|
};
|
|
|
|
priv->gl_context = nil;
|
|
if (other_context)
|
|
priv->external_gl_context = (NSOpenGLContext *) gst_gl_context_get_gl_context (other_context);
|
|
else
|
|
priv->external_gl_context = NULL;
|
|
|
|
GSRegisterCurrentThread();
|
|
|
|
pool = [[NSAutoreleasePool alloc] init];
|
|
|
|
#ifdef GNUSTEP
|
|
[NSApplication sharedApplication];
|
|
#endif
|
|
|
|
rect.origin.x = 0;
|
|
rect.origin.y = 0;
|
|
rect.size.width = 320;
|
|
rect.size.height = 240;
|
|
|
|
priv->rect = rect;
|
|
|
|
gst_gl_window_cocoa_create_window (window_cocoa);
|
|
window_handle = (NSWindow *) gst_gl_window_get_window_handle (window);
|
|
|
|
glView = [GstGLNSOpenGLView alloc];
|
|
|
|
fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
|
|
|
|
if (!fmt) {
|
|
gst_object_unref (window);
|
|
GST_WARNING ("cannot create NSOpenGLPixelFormat");
|
|
return FALSE;
|
|
}
|
|
|
|
glView = [glView initWithFrame:window_cocoa rect:rect pixelFormat:fmt];
|
|
|
|
[window_handle setContentView:glView];
|
|
|
|
#ifndef GNUSTEP
|
|
glContext = [[NSOpenGLContext alloc] initWithFormat:fmt
|
|
shareContext:context_cocoa->priv->external_gl_context];
|
|
|
|
GST_DEBUG ("NSOpenGL context created: %lud\n", (guintptr) glContext);
|
|
|
|
context_cocoa->priv->gl_context = glContext;
|
|
|
|
[glView setOpenGLContext:glContext];
|
|
|
|
#else
|
|
/* FIXME try to make context sharing work in GNUstep */
|
|
context_cocoa->priv->gl_context = [glView openGLContext];
|
|
#endif
|
|
|
|
/* OpenGL context is made current only one time threre.
|
|
* Indeed, all OpenGL calls are made in only one thread,
|
|
* the Application thread */
|
|
[glContext makeCurrentContext];
|
|
|
|
[glContext update];
|
|
|
|
/* Back and front buffers are swapped only during the vertical retrace of the monitor.
|
|
* Discarded if you configured your driver to Never-use-V-Sync.
|
|
*/
|
|
NS_DURING {
|
|
if (glContext) {
|
|
#ifdef GNUSTEP
|
|
const long swapInterval = 1;
|
|
#else
|
|
const GLint swapInterval = 1;
|
|
#endif
|
|
[[glView openGLContext] setValues:&swapInterval forParameter:NSOpenGLCPSwapInterval];
|
|
}
|
|
} NS_HANDLER {
|
|
GST_DEBUG ("your back-end does not implement NSOpenglContext::setValues\n");
|
|
}
|
|
NS_ENDHANDLER
|
|
|
|
GST_DEBUG ("opengl GstGLNSWindow initialized: %d x %d\n",
|
|
(gint) rect.size.width, (gint) rect.size.height);
|
|
|
|
[pool release];
|
|
|
|
#ifndef GNUSTEP
|
|
priv->source_id = g_timeout_add_seconds (1, gst_gl_window_cocoa_nsapp_iteration, NULL);
|
|
#endif
|
|
|
|
gst_object_unref (window);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static guintptr
|
|
gst_gl_context_cocoa_get_gl_context (GstGLContext * context)
|
|
{
|
|
return (guintptr) GST_GL_CONTEXT_COCOA (context)->priv->gl_context;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gl_context_cocoa_activate (GstGLContext * context, gboolean activate)
|
|
{
|
|
GstGLContextCocoa *context_cocoa;
|
|
|
|
context_cocoa = GST_GL_CONTEXT_COCOA (context);
|
|
|
|
if (activate)
|
|
[context_cocoa->priv->gl_context makeCurrentContext];
|
|
#if 0
|
|
else
|
|
/* FIXME */
|
|
[context_cocoa->priv->gl_context clearCurrentContext];
|
|
#endif
|
|
return TRUE;
|
|
}
|
|
|
|
static GstGLAPI
|
|
gst_gl_context_cocoa_get_gl_api (GstGLContext * context)
|
|
{
|
|
return GST_GL_API_OPENGL;
|
|
}
|