[mirror_qemu.git] / ui / gtk-egl.c

/*
 * GTK UI -- egl opengl code.
 *
 * Note that gtk 3.16+ (released 2015-03-23) has a GtkGLArea widget,
 * which is GtkDrawingArea like widget with opengl rendering support.
 *
 * This code handles opengl support on older gtk versions, using egl
 * to get a opengl context for the X11 window.
 *
 * This work is licensed under the terms of the GNU GPL, version 2 or later.
 * See the COPYING file in the top-level directory.
 */

#include "qemu/osdep.h"
#include "qemu-common.h"

#include "trace.h"

#include "ui/console.h"
#include "ui/gtk.h"
#include "ui/egl-helpers.h"
#include "ui/shader.h"

#include "sysemu/sysemu.h"

static void gtk_egl_set_scanout_mode(VirtualConsole *vc, bool scanout)
{
    if (vc->gfx.scanout_mode == scanout) {
        return;
    }

    vc->gfx.scanout_mode = scanout;
    if (!vc->gfx.scanout_mode) {
        egl_fb_destroy(&vc->gfx.guest_fb);
        if (vc->gfx.surface) {
            surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
            surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
        }
    }
}

/** DisplayState Callbacks (opengl version) **/

void gd_egl_init(VirtualConsole *vc)
{
    GdkWindow *gdk_window = gtk_widget_get_window(vc->gfx.drawing_area);
    if (!gdk_window) {
        return;
    }

    Window x11_window = gdk_x11_window_get_xid(gdk_window);
    if (!x11_window) {
        return;
    }

    vc->gfx.ectx = qemu_egl_init_ctx();
    vc->gfx.esurface = qemu_egl_init_surface_x11(vc->gfx.ectx, x11_window);

    assert(vc->gfx.esurface);
}

void gd_egl_draw(VirtualConsole *vc)
{
    GdkWindow *window;
    int ww, wh;

    if (!vc->gfx.gls) {
        return;
    }

    if (vc->gfx.scanout_mode) {
        gd_egl_scanout_flush(&vc->gfx.dcl, 0, 0, vc->gfx.w, vc->gfx.h);
    } else {
        if (!vc->gfx.ds) {
            return;
        }
        eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                       vc->gfx.esurface, vc->gfx.ectx);

        window = gtk_widget_get_window(vc->gfx.drawing_area);
        ww = gdk_window_get_width(window);
        wh = gdk_window_get_height(window);
        surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh);
        surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);

        eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
    }
}

void gd_egl_update(DisplayChangeListener *dcl,
                   int x, int y, int w, int h)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    if (!vc->gfx.gls || !vc->gfx.ds) {
        return;
    }

    eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                   vc->gfx.esurface, vc->gfx.ectx);
    surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h);
    vc->gfx.glupdates++;
}

void gd_egl_refresh(DisplayChangeListener *dcl)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    if (!vc->gfx.esurface) {
        gd_egl_init(vc);
        if (!vc->gfx.esurface) {
            return;
        }
        vc->gfx.gls = qemu_gl_init_shader();
        if (vc->gfx.ds) {
            surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
        }
    }

    graphic_hw_update(dcl->con);

    if (vc->gfx.glupdates) {
        vc->gfx.glupdates = 0;
        gtk_egl_set_scanout_mode(vc, false);
        gd_egl_draw(vc);
    }
}

void gd_egl_switch(DisplayChangeListener *dcl,
                   DisplaySurface *surface)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
    bool resized = true;

    trace_gd_switch(vc->label, surface_width(surface), surface_height(surface));

    if (vc->gfx.ds &&
        surface_width(vc->gfx.ds) == surface_width(surface) &&
        surface_height(vc->gfx.ds) == surface_height(surface)) {
        resized = false;
    }

    surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
    vc->gfx.ds = surface;
    if (vc->gfx.gls) {
        surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
    }

    if (resized) {
        gd_update_windowsize(vc);
    }
}

QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl,
                                    QEMUGLParams *params)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                   vc->gfx.esurface, vc->gfx.ectx);
    return qemu_egl_create_context(dcl, params);
}

void gd_egl_scanout_disable(DisplayChangeListener *dcl)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    vc->gfx.w = 0;
    vc->gfx.h = 0;
    gtk_egl_set_scanout_mode(vc, false);
}

void gd_egl_scanout_texture(DisplayChangeListener *dcl,
                            uint32_t backing_id, bool backing_y_0_top,
                            uint32_t backing_width, uint32_t backing_height,
                            uint32_t x, uint32_t y,
                            uint32_t w, uint32_t h)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    vc->gfx.x = x;
    vc->gfx.y = y;
    vc->gfx.w = w;
    vc->gfx.h = h;
    vc->gfx.y0_top = backing_y_0_top;

    eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                   vc->gfx.esurface, vc->gfx.ectx);

    gtk_egl_set_scanout_mode(vc, true);
    egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height,
                         backing_id, false);
}

void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
                           QemuDmaBuf *dmabuf)
{
#ifdef CONFIG_OPENGL_DMABUF
    egl_dmabuf_import_texture(dmabuf);
    if (!dmabuf->texture) {
        return;
    }

    gd_egl_scanout_texture(dcl, dmabuf->texture,
                           false, dmabuf->width, dmabuf->height,
                           0, 0, dmabuf->width, dmabuf->height);
#endif
}

void gd_egl_cursor_dmabuf(DisplayChangeListener *dcl,
                          QemuDmaBuf *dmabuf, bool have_hot,
                          uint32_t hot_x, uint32_t hot_y)
{
#ifdef CONFIG_OPENGL_DMABUF
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    if (dmabuf) {
        egl_dmabuf_import_texture(dmabuf);
        if (!dmabuf->texture) {
            return;
        }
        egl_fb_setup_for_tex(&vc->gfx.cursor_fb, dmabuf->width, dmabuf->height,
                             dmabuf->texture, false);
    } else {
        egl_fb_destroy(&vc->gfx.cursor_fb);
    }
#endif
}

void gd_egl_cursor_position(DisplayChangeListener *dcl,
                            uint32_t pos_x, uint32_t pos_y)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    vc->gfx.cursor_x = pos_x;
    vc->gfx.cursor_y = pos_y;
}

void gd_egl_release_dmabuf(DisplayChangeListener *dcl,
                           QemuDmaBuf *dmabuf)
{
#ifdef CONFIG_OPENGL_DMABUF
    egl_dmabuf_release_texture(dmabuf);
#endif
}

void gd_egl_scanout_flush(DisplayChangeListener *dcl,
                          uint32_t x, uint32_t y, uint32_t w, uint32_t h)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
    GdkWindow *window;
    int ww, wh;

    if (!vc->gfx.scanout_mode) {
        return;
    }
    if (!vc->gfx.guest_fb.framebuffer) {
        return;
    }

    eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                   vc->gfx.esurface, vc->gfx.ectx);

    window = gtk_widget_get_window(vc->gfx.drawing_area);
    ww = gdk_window_get_width(window);
    wh = gdk_window_get_height(window);
    egl_fb_setup_default(&vc->gfx.win_fb, ww, wh);
    if (vc->gfx.cursor_fb.texture) {
        egl_texture_blit(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.guest_fb,
                         vc->gfx.y0_top);
        egl_texture_blend(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.cursor_fb,
                          vc->gfx.y0_top,
                          vc->gfx.cursor_x, vc->gfx.cursor_y);
    } else {
        egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
    }

    eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
}

void gtk_egl_init(DisplayGLMode mode)
{
    GdkDisplay *gdk_display = gdk_display_get_default();
    Display *x11_display = gdk_x11_display_get_xdisplay(gdk_display);

    if (qemu_egl_init_dpy_x11(x11_display, mode) < 0) {
        return;
    }

    display_opengl = 1;
}

int gd_egl_make_current(DisplayChangeListener *dcl,
                        QEMUGLContext ctx)
{
    VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);

    return eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
                          vc->gfx.esurface, ctx);
}
Commit	Line	Data
97edf3bd GH	1	/*
	2	* GTK UI -- egl opengl code.
	3	*
	4	* Note that gtk 3.16+ (released 2015-03-23) has a GtkGLArea widget,
	5	* which is GtkDrawingArea like widget with opengl rendering support.
	6	*
	7	* This code handles opengl support on older gtk versions, using egl
	8	* to get a opengl context for the X11 window.
	9	*
	10	* This work is licensed under the terms of the GNU GPL, version 2 or later.
	11	* See the COPYING file in the top-level directory.
	12	*/
	13
e16f4c87	14	#include "qemu/osdep.h"
97edf3bd GH	15	#include "qemu-common.h"
	16
	17	#include "trace.h"
	18
	19	#include "ui/console.h"
	20	#include "ui/gtk.h"
	21	#include "ui/egl-helpers.h"
f1bd3132	22	#include "ui/shader.h"
97edf3bd GH	23
	24	#include "sysemu/sysemu.h"
	25
4782aeb7 GH	26	static void gtk_egl_set_scanout_mode(VirtualConsole *vc, bool scanout)
	27	{
	28	if (vc->gfx.scanout_mode == scanout) {
	29	return;
	30	}
	31
	32	vc->gfx.scanout_mode = scanout;
	33	if (!vc->gfx.scanout_mode) {
a4f113fd	34	egl_fb_destroy(&vc->gfx.guest_fb);
4782aeb7 GH	35	if (vc->gfx.surface) {
	36	surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
	37	surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
	38	}
	39	}
	40	}
	41
97edf3bd GH	42	/ DisplayState Callbacks (opengl version) /
	43
	44	void gd_egl_init(VirtualConsole *vc)
	45	{
	46	GdkWindow *gdk_window = gtk_widget_get_window(vc->gfx.drawing_area);
	47	if (!gdk_window) {
	48	return;
	49	}
	50
97edf3bd	51	Window x11_window = gdk_x11_window_get_xid(gdk_window);
97edf3bd GH	52	if (!x11_window) {
	53	return;
	54	}
	55
	56	vc->gfx.ectx = qemu_egl_init_ctx();
	57	vc->gfx.esurface = qemu_egl_init_surface_x11(vc->gfx.ectx, x11_window);
	58
	59	assert(vc->gfx.esurface);
	60	}
	61
	62	void gd_egl_draw(VirtualConsole *vc)
	63	{
	64	GdkWindow *window;
	65	int ww, wh;
	66
4782aeb7	67	if (!vc->gfx.gls) {
97edf3bd GH	68	return;
	69	}
	70
4782aeb7 GH	71	if (vc->gfx.scanout_mode) {
	72	gd_egl_scanout_flush(&vc->gfx.dcl, 0, 0, vc->gfx.w, vc->gfx.h);
	73	} else {
	74	if (!vc->gfx.ds) {
	75	return;
	76	}
	77	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	78	vc->gfx.esurface, vc->gfx.ectx);
97edf3bd	79
4782aeb7	80	window = gtk_widget_get_window(vc->gfx.drawing_area);
89d85cde DB	81	ww = gdk_window_get_width(window);
89d85cde DB	82	wh = gdk_window_get_height(window);
4782aeb7 GH	83	surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh);
4782aeb7 GH	84	surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
97edf3bd	85
4782aeb7 GH	86	eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
4782aeb7 GH	87	}
97edf3bd GH	88	}
	89
	90	void gd_egl_update(DisplayChangeListener *dcl,
	91	int x, int y, int w, int h)
	92	{
	93	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	94
	95	if (!vc->gfx.gls \|\| !vc->gfx.ds) {
	96	return;
	97	}
	98
	99	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	100	vc->gfx.esurface, vc->gfx.ectx);
	101	surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h);
	102	vc->gfx.glupdates++;
	103	}
	104
	105	void gd_egl_refresh(DisplayChangeListener *dcl)
	106	{
	107	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	108
	109	if (!vc->gfx.esurface) {
	110	gd_egl_init(vc);
	111	if (!vc->gfx.esurface) {
	112	return;
	113	}
46e19e14	114	vc->gfx.gls = qemu_gl_init_shader();
97edf3bd GH	115	if (vc->gfx.ds) {
	116	surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
	117	}
	118	}
	119
	120	graphic_hw_update(dcl->con);
	121
	122	if (vc->gfx.glupdates) {
	123	vc->gfx.glupdates = 0;
4782aeb7	124	gtk_egl_set_scanout_mode(vc, false);
97edf3bd GH	125	gd_egl_draw(vc);
	126	}
	127	}
	128
	129	void gd_egl_switch(DisplayChangeListener *dcl,
	130	DisplaySurface *surface)
	131	{
	132	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	133	bool resized = true;
	134
	135	trace_gd_switch(vc->label, surface_width(surface), surface_height(surface));
	136
	137	if (vc->gfx.ds &&
	138	surface_width(vc->gfx.ds) == surface_width(surface) &&
	139	surface_height(vc->gfx.ds) == surface_height(surface)) {
	140	resized = false;
	141	}
	142
	143	surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
	144	vc->gfx.ds = surface;
	145	if (vc->gfx.gls) {
	146	surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
	147	}
	148
	149	if (resized) {
	150	gd_update_windowsize(vc);
	151	}
	152	}
	153
4782aeb7 GH	154	QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl,
	155	QEMUGLParams *params)
	156	{
	157	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	158
	159	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	160	vc->gfx.esurface, vc->gfx.ectx);
	161	return qemu_egl_create_context(dcl, params);
	162	}
	163
543a7a16 GH	164	void gd_egl_scanout_disable(DisplayChangeListener *dcl)
	165	{
	166	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	167
	168	vc->gfx.w = 0;
	169	vc->gfx.h = 0;
543a7a16 GH	170	gtk_egl_set_scanout_mode(vc, false);
	171	}
	172
f4c36bda GH	173	void gd_egl_scanout_texture(DisplayChangeListener *dcl,
	174	uint32_t backing_id, bool backing_y_0_top,
	175	uint32_t backing_width, uint32_t backing_height,
	176	uint32_t x, uint32_t y,
	177	uint32_t w, uint32_t h)
4782aeb7 GH	178	{
	179	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	180
	181	vc->gfx.x = x;
	182	vc->gfx.y = y;
	183	vc->gfx.w = w;
	184	vc->gfx.h = h;
4782aeb7 GH	185	vc->gfx.y0_top = backing_y_0_top;
	186
	187	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	188	vc->gfx.esurface, vc->gfx.ectx);
	189
4782aeb7	190	gtk_egl_set_scanout_mode(vc, true);
74083f9c GH	191	egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height,
74083f9c GH	192	backing_id, false);
4782aeb7 GH	193	}
4782aeb7 GH	194
70763fea GH	195	void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
	196	QemuDmaBuf *dmabuf)
	197	{
	198	#ifdef CONFIG_OPENGL_DMABUF
	199	egl_dmabuf_import_texture(dmabuf);
	200	if (!dmabuf->texture) {
	201	return;
	202	}
	203
	204	gd_egl_scanout_texture(dcl, dmabuf->texture,
	205	false, dmabuf->width, dmabuf->height,
	206	0, 0, dmabuf->width, dmabuf->height);
	207	#endif
	208	}
	209
f1bd3132 GH	210	void gd_egl_cursor_dmabuf(DisplayChangeListener *dcl,
	211	QemuDmaBuf *dmabuf, bool have_hot,
	212	uint32_t hot_x, uint32_t hot_y)
	213	{
	214	#ifdef CONFIG_OPENGL_DMABUF
	215	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	216
	217	if (dmabuf) {
	218	egl_dmabuf_import_texture(dmabuf);
	219	if (!dmabuf->texture) {
	220	return;
	221	}
	222	egl_fb_setup_for_tex(&vc->gfx.cursor_fb, dmabuf->width, dmabuf->height,
	223	dmabuf->texture, false);
	224	} else {
	225	egl_fb_destroy(&vc->gfx.cursor_fb);
	226	}
	227	#endif
	228	}
	229
	230	void gd_egl_cursor_position(DisplayChangeListener *dcl,
	231	uint32_t pos_x, uint32_t pos_y)
	232	{
	233	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	234
	235	vc->gfx.cursor_x = pos_x;
	236	vc->gfx.cursor_y = pos_y;
	237	}
	238
70763fea GH	239	void gd_egl_release_dmabuf(DisplayChangeListener *dcl,
	240	QemuDmaBuf *dmabuf)
	241	{
	242	#ifdef CONFIG_OPENGL_DMABUF
	243	egl_dmabuf_release_texture(dmabuf);
	244	#endif
	245	}
	246
4782aeb7 GH	247	void gd_egl_scanout_flush(DisplayChangeListener *dcl,
	248	uint32_t x, uint32_t y, uint32_t w, uint32_t h)
	249	{
	250	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	251	GdkWindow *window;
a4f113fd	252	int ww, wh;
4782aeb7 GH	253
	254	if (!vc->gfx.scanout_mode) {
	255	return;
	256	}
a4f113fd	257	if (!vc->gfx.guest_fb.framebuffer) {
4782aeb7 GH	258	return;
	259	}
	260
	261	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	262	vc->gfx.esurface, vc->gfx.ectx);
	263
4782aeb7	264	window = gtk_widget_get_window(vc->gfx.drawing_area);
89d85cde DB	265	ww = gdk_window_get_width(window);
89d85cde DB	266	wh = gdk_window_get_height(window);
a4f113fd	267	egl_fb_setup_default(&vc->gfx.win_fb, ww, wh);
f1bd3132 GH	268	if (vc->gfx.cursor_fb.texture) {
	269	egl_texture_blit(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.guest_fb,
	270	vc->gfx.y0_top);
	271	egl_texture_blend(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.cursor_fb,
	272	vc->gfx.y0_top,
	273	vc->gfx.cursor_x, vc->gfx.cursor_y);
	274	} else {
	275	egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
	276	}
4782aeb7 GH	277
	278	eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
	279	}
	280
54d208ff	281	void gtk_egl_init(DisplayGLMode mode)
97edf3bd GH	282	{
	283	GdkDisplay *gdk_display = gdk_display_get_default();
	284	Display *x11_display = gdk_x11_display_get_xdisplay(gdk_display);
	285
54d208ff	286	if (qemu_egl_init_dpy_x11(x11_display, mode) < 0) {
97edf3bd GH	287	return;
	288	}
	289
	290	display_opengl = 1;
	291	}
4782aeb7 GH	292
	293	int gd_egl_make_current(DisplayChangeListener *dcl,
	294	QEMUGLContext ctx)
	295	{
	296	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	297
	298	return eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	299	vc->gfx.esurface, ctx);
	300	}