1 /*
2 * GStreamer
3 * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
4 * Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
5 * Copyright (C) 2015 Freescale Semiconductor <b55597@freescale.com>
6 * Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com>
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
17 *
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
22 */
23
24 #ifdef HAVE_CONFIG_H
25 #include "config.h"
26 #endif
27
28 #include "../gstgl_fwd.h"
29 #include <gst/gl/gstglcontext.h>
30 #include <gst/gl/gstglfuncs.h>
31
32 #include "gstglwindow_viv_fb_egl.h"
33 #include "../gstglwindow_private.h"
34
35 #define GST_CAT_DEFAULT gst_gl_window_debug
36
37 #define gst_gl_window_viv_fb_egl_parent_class parent_class
38 G_DEFINE_TYPE (GstGLWindowVivFBEGL, gst_gl_window_viv_fb_egl,
39 GST_TYPE_GL_WINDOW);
40
41 static guintptr gst_gl_window_viv_fb_egl_get_window_handle (GstGLWindow *
42 window);
43 static guintptr gst_gl_window_viv_fb_egl_get_display (GstGLWindow * window);
44 static void gst_gl_window_viv_fb_egl_set_window_handle (GstGLWindow * window,
45 guintptr handle);
46 static void gst_gl_window_viv_fb_egl_close (GstGLWindow * window);
47 static gboolean gst_gl_window_viv_fb_egl_open (GstGLWindow * window,
48 GError ** error);
49 static void gst_gl_window_viv_fb_egl_draw (GstGLWindow * window);
50 static gboolean
51 gst_gl_window_viv_fb_egl_set_render_rectangle (GstGLWindow * window,
52 gint x, gint y, gint width, gint height);
53 static gboolean gst_gl_window_viv_fb_egl_controls_viewport (GstGLWindow *
54 window);
55
56 static void
gst_gl_window_viv_fb_egl_class_init(GstGLWindowVivFBEGLClass * klass)57 gst_gl_window_viv_fb_egl_class_init (GstGLWindowVivFBEGLClass * klass)
58 {
59 GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
60
61 window_class->get_window_handle =
62 GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_get_window_handle);
63 window_class->get_display =
64 GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_get_display);
65 window_class->set_window_handle =
66 GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_set_window_handle);
67 window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_close);
68 window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_open);
69 window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_draw);
70 window_class->set_render_rectangle =
71 GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_set_render_rectangle);
72 window_class->controls_viewport =
73 GST_DEBUG_FUNCPTR (gst_gl_window_viv_fb_egl_controls_viewport);
74 }
75
76 static void
gst_gl_window_viv_fb_egl_init(GstGLWindowVivFBEGL * window)77 gst_gl_window_viv_fb_egl_init (GstGLWindowVivFBEGL * window)
78 {
79 }
80
81 /* Must be called in the gl thread */
82 GstGLWindowVivFBEGL *
gst_gl_window_viv_fb_egl_new(GstGLDisplay * display)83 gst_gl_window_viv_fb_egl_new (GstGLDisplay * display)
84 {
85 GstGLWindowVivFBEGL *window;
86
87 if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_VIV_FB) ==
88 0)
89 /* we require a Vivante FB display to create windows */
90 return NULL;
91
92 window = g_object_new (GST_TYPE_GL_WINDOW_VIV_FB_EGL, NULL);
93 gst_object_ref_sink (window);
94
95 return window;
96 }
97
98 static void
gst_gl_window_viv_fb_egl_close(GstGLWindow * window)99 gst_gl_window_viv_fb_egl_close (GstGLWindow * window)
100 {
101 GstGLWindowVivFBEGL *window_egl = GST_GL_WINDOW_VIV_FB_EGL (window);
102
103 if (window_egl->win_id && !window_egl->external_window) {
104 fbDestroyWindow (window_egl->win_id);
105 window_egl->win_id = 0;
106 }
107
108 GST_GL_WINDOW_CLASS (parent_class)->close (window);
109 }
110
111 static guintptr
gst_gl_window_viv_fb_egl_get_display(GstGLWindow * window)112 gst_gl_window_viv_fb_egl_get_display (GstGLWindow * window)
113 {
114 return gst_gl_display_get_handle (window->display);
115 }
116
117 static gboolean
gst_gl_window_viv_fb_egl_open(GstGLWindow * window,GError ** error)118 gst_gl_window_viv_fb_egl_open (GstGLWindow * window, GError ** error)
119 {
120 GstGLWindowVivFBEGL *window_egl = GST_GL_WINDOW_VIV_FB_EGL (window);
121 EGLNativeDisplayType display;
122
123 display = (EGLNativeDisplayType) gst_gl_window_get_display (window);
124
125 window_egl->win_id = fbCreateWindow (display, -1, -1, 0, 0);
126 window_egl->external_window = FALSE;
127 if (!window_egl->win_id) {
128 g_set_error (error, GST_GL_WINDOW_ERROR,
129 GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE, "Can't create window");
130 return FALSE;
131 }
132
133 return GST_GL_WINDOW_CLASS (parent_class)->open (window, error);
134 }
135
136 void
gst_gl_window_viv_fb_egl_create_window(GstGLWindowVivFBEGL * window_egl)137 gst_gl_window_viv_fb_egl_create_window (GstGLWindowVivFBEGL * window_egl)
138 {
139 fbGetWindowGeometry (window_egl->win_id, NULL, NULL,
140 &window_egl->window_width, &window_egl->window_height);
141 window_egl->render_rectangle.x = 0;
142 window_egl->render_rectangle.y = 0;
143 window_egl->render_rectangle.w = window_egl->window_width;
144 window_egl->render_rectangle.h = window_egl->window_height;
145 gst_gl_window_resize (GST_GL_WINDOW (window_egl), window_egl->window_width,
146 window_egl->window_height);
147
148 GST_DEBUG
149 ("create viv-fb window, resolution is (%dx%d), window %p.",
150 window_egl->window_width, window_egl->window_height,
151 (gpointer) window_egl->win_id);
152 }
153
154 static guintptr
gst_gl_window_viv_fb_egl_get_window_handle(GstGLWindow * window)155 gst_gl_window_viv_fb_egl_get_window_handle (GstGLWindow * window)
156 {
157 return (guintptr) GST_GL_WINDOW_VIV_FB_EGL (window)->win_id;
158 }
159
160 static void
gst_gl_window_viv_fb_egl_set_window_handle(GstGLWindow * window,guintptr handle)161 gst_gl_window_viv_fb_egl_set_window_handle (GstGLWindow * window,
162 guintptr handle)
163 {
164 GstGLWindowVivFBEGL *window_egl = GST_GL_WINDOW_VIV_FB_EGL (window);
165 gint width, height;
166
167 if (window_egl->win_id)
168 fbDestroyWindow (window_egl->win_id);
169 window_egl->win_id = (EGLNativeWindowType) handle;
170 window_egl->external_window = handle != 0;
171
172 fbGetWindowGeometry (window_egl->win_id, NULL, NULL, &width, &height);
173 gst_gl_window_resize (window, width, height);
174 }
175
176 static void
draw_cb(gpointer data)177 draw_cb (gpointer data)
178 {
179 GstGLWindowVivFBEGL *window_egl = data;
180 GstGLWindow *window = GST_GL_WINDOW (window_egl);
181 GstGLContext *context = gst_gl_window_get_context (window);
182 const GstGLFuncs *gl;
183 gint viewport_dim[4];
184
185 gl = context->gl_vtable;
186
187 if (window->queue_resize) {
188 guint width, height;
189
190 gst_gl_window_get_surface_dimensions (window, &width, &height);
191 gst_gl_window_resize (window, width, height);
192
193 gl->GetIntegerv (GL_VIEWPORT, viewport_dim);
194 window_egl->viewport.x = viewport_dim[0] + window_egl->render_rectangle.x;
195 window_egl->viewport.y = viewport_dim[1] + window_egl->render_rectangle.y;
196 window_egl->viewport.w = viewport_dim[2];
197 window_egl->viewport.h = viewport_dim[2];
198 }
199
200 gl->Viewport (window_egl->viewport.x, window_egl->viewport.y,
201 window_egl->viewport.w, window_egl->viewport.h);
202
203 if (window->draw)
204 window->draw (window->draw_data);
205
206 gst_gl_context_swap_buffers (context);
207
208 gst_object_unref (context);
209 }
210
211 static void
gst_gl_window_viv_fb_egl_draw(GstGLWindow * window)212 gst_gl_window_viv_fb_egl_draw (GstGLWindow * window)
213 {
214 gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
215 }
216
217 typedef struct
218 {
219 GstGLWindowVivFBEGL *window_egl;
220 GstVideoRectangle rect;
221 } SetRenderRectangleData;
222
223 static void
_free_set_render_rectangle(SetRenderRectangleData * render)224 _free_set_render_rectangle (SetRenderRectangleData * render)
225 {
226 if (render) {
227 if (render->window_egl)
228 gst_object_unref (render->window_egl);
229 g_free (render);
230 }
231 }
232
233 static void
_calculate_viewport_coordinates(GstGLWindowVivFBEGL * window_egl,GstVideoRectangle * req,GstVideoRectangle * result)234 _calculate_viewport_coordinates (GstGLWindowVivFBEGL * window_egl,
235 GstVideoRectangle * req, GstVideoRectangle * result)
236 {
237 result->x = req->x;
238 result->y = window_egl->window_height - (req->y + req->h);
239 result->w = req->w;
240 result->h = req->h;
241 }
242
243 static void
_set_render_rectangle(gpointer data)244 _set_render_rectangle (gpointer data)
245 {
246 SetRenderRectangleData *render = data;
247 GstGLWindowVivFBEGL *window_egl = render->window_egl;
248 GstGLWindow *window = GST_GL_WINDOW (window_egl);
249
250 GST_LOG_OBJECT (render->window_egl, "setting render rectangle %i,%i+%ix%i",
251 render->rect.x, render->rect.y, render->rect.w, render->rect.h);
252
253 _calculate_viewport_coordinates (window_egl, &render->rect,
254 &window_egl->render_rectangle);
255
256 gst_gl_window_resize (window, render->rect.w, render->rect.h);
257
258 window->queue_resize = TRUE;
259 }
260
261 static gboolean
gst_gl_window_viv_fb_egl_set_render_rectangle(GstGLWindow * window,gint x,gint y,gint width,gint height)262 gst_gl_window_viv_fb_egl_set_render_rectangle (GstGLWindow * window,
263 gint x, gint y, gint width, gint height)
264 {
265 GstGLWindowVivFBEGL *window_egl = GST_GL_WINDOW_VIV_FB_EGL (window);
266 SetRenderRectangleData *render;
267
268 render = g_new0 (SetRenderRectangleData, 1);
269 render->window_egl = gst_object_ref (window_egl);
270 render->rect.x = x;
271 render->rect.y = y;
272 render->rect.w = width;
273 render->rect.h = height;
274
275 gst_gl_window_send_message_async (window,
276 (GstGLWindowCB) _set_render_rectangle, render,
277 (GDestroyNotify) _free_set_render_rectangle);
278
279 return TRUE;
280 }
281
282 static gboolean
gst_gl_window_viv_fb_egl_controls_viewport(GstGLWindow * window)283 gst_gl_window_viv_fb_egl_controls_viewport (GstGLWindow * window)
284 {
285 return TRUE;
286 }
287