[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;
    }

#if GTK_CHECK_VERSION(3, 0, 0)
    Window x11_window = gdk_x11_window_get_xid(gdk_window);
#else
    Window x11_window = gdk_x11_drawable_get_xid(gdk_window);
#endif
    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);
        gdk_drawable_get_size(window, &ww, &wh);
        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);
    gdk_drawable_get_size(window, &ww, &wh);
    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
	51	#if GTK_CHECK_VERSION(3, 0, 0)
	52	Window x11_window = gdk_x11_window_get_xid(gdk_window);
	53	#else
	54	Window x11_window = gdk_x11_drawable_get_xid(gdk_window);
	55	#endif
	56	if (!x11_window) {
	57	return;
	58	}
	59
	60	vc->gfx.ectx = qemu_egl_init_ctx();
	61	vc->gfx.esurface = qemu_egl_init_surface_x11(vc->gfx.ectx, x11_window);
	62
	63	assert(vc->gfx.esurface);
	64	}
	65
	66	void gd_egl_draw(VirtualConsole *vc)
	67	{
	68	GdkWindow *window;
	69	int ww, wh;
	70
4782aeb7	71	if (!vc->gfx.gls) {
97edf3bd GH	72	return;
	73	}
	74
4782aeb7 GH	75	if (vc->gfx.scanout_mode) {
	76	gd_egl_scanout_flush(&vc->gfx.dcl, 0, 0, vc->gfx.w, vc->gfx.h);
	77	} else {
	78	if (!vc->gfx.ds) {
	79	return;
	80	}
	81	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	82	vc->gfx.esurface, vc->gfx.ectx);
97edf3bd	83
4782aeb7 GH	84	window = gtk_widget_get_window(vc->gfx.drawing_area);
	85	gdk_drawable_get_size(window, &ww, &wh);
	86	surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh);
	87	surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
97edf3bd	88
4782aeb7 GH	89	eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
4782aeb7 GH	90	}
97edf3bd GH	91	}
	92
	93	void gd_egl_update(DisplayChangeListener *dcl,
	94	int x, int y, int w, int h)
	95	{
	96	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	97
	98	if (!vc->gfx.gls \|\| !vc->gfx.ds) {
	99	return;
	100	}
	101
	102	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	103	vc->gfx.esurface, vc->gfx.ectx);
	104	surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h);
	105	vc->gfx.glupdates++;
	106	}
	107
	108	void gd_egl_refresh(DisplayChangeListener *dcl)
	109	{
	110	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	111
	112	if (!vc->gfx.esurface) {
	113	gd_egl_init(vc);
	114	if (!vc->gfx.esurface) {
	115	return;
	116	}
46e19e14	117	vc->gfx.gls = qemu_gl_init_shader();
97edf3bd GH	118	if (vc->gfx.ds) {
	119	surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
	120	}
	121	}
	122
	123	graphic_hw_update(dcl->con);
	124
	125	if (vc->gfx.glupdates) {
	126	vc->gfx.glupdates = 0;
4782aeb7	127	gtk_egl_set_scanout_mode(vc, false);
97edf3bd GH	128	gd_egl_draw(vc);
	129	}
	130	}
	131
	132	void gd_egl_switch(DisplayChangeListener *dcl,
	133	DisplaySurface *surface)
	134	{
	135	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	136	bool resized = true;
	137
	138	trace_gd_switch(vc->label, surface_width(surface), surface_height(surface));
	139
	140	if (vc->gfx.ds &&
	141	surface_width(vc->gfx.ds) == surface_width(surface) &&
	142	surface_height(vc->gfx.ds) == surface_height(surface)) {
	143	resized = false;
	144	}
	145
	146	surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
	147	vc->gfx.ds = surface;
	148	if (vc->gfx.gls) {
	149	surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
	150	}
	151
	152	if (resized) {
	153	gd_update_windowsize(vc);
	154	}
	155	}
	156
4782aeb7 GH	157	QEMUGLContext gd_egl_create_context(DisplayChangeListener *dcl,
	158	QEMUGLParams *params)
	159	{
	160	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	161
	162	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	163	vc->gfx.esurface, vc->gfx.ectx);
	164	return qemu_egl_create_context(dcl, params);
	165	}
	166
543a7a16 GH	167	void gd_egl_scanout_disable(DisplayChangeListener *dcl)
	168	{
	169	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	170
	171	vc->gfx.w = 0;
	172	vc->gfx.h = 0;
543a7a16 GH	173	gtk_egl_set_scanout_mode(vc, false);
	174	}
	175
f4c36bda GH	176	void gd_egl_scanout_texture(DisplayChangeListener *dcl,
	177	uint32_t backing_id, bool backing_y_0_top,
	178	uint32_t backing_width, uint32_t backing_height,
	179	uint32_t x, uint32_t y,
	180	uint32_t w, uint32_t h)
4782aeb7 GH	181	{
	182	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	183
	184	vc->gfx.x = x;
	185	vc->gfx.y = y;
	186	vc->gfx.w = w;
	187	vc->gfx.h = h;
4782aeb7 GH	188	vc->gfx.y0_top = backing_y_0_top;
	189
	190	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	191	vc->gfx.esurface, vc->gfx.ectx);
	192
4782aeb7	193	gtk_egl_set_scanout_mode(vc, true);
74083f9c GH	194	egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height,
74083f9c GH	195	backing_id, false);
4782aeb7 GH	196	}
4782aeb7 GH	197
70763fea GH	198	void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
	199	QemuDmaBuf *dmabuf)
	200	{
	201	#ifdef CONFIG_OPENGL_DMABUF
	202	egl_dmabuf_import_texture(dmabuf);
	203	if (!dmabuf->texture) {
	204	return;
	205	}
	206
	207	gd_egl_scanout_texture(dcl, dmabuf->texture,
	208	false, dmabuf->width, dmabuf->height,
	209	0, 0, dmabuf->width, dmabuf->height);
	210	#endif
	211	}
	212
f1bd3132 GH	213	void gd_egl_cursor_dmabuf(DisplayChangeListener *dcl,
	214	QemuDmaBuf *dmabuf, bool have_hot,
	215	uint32_t hot_x, uint32_t hot_y)
	216	{
	217	#ifdef CONFIG_OPENGL_DMABUF
	218	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	219
	220	if (dmabuf) {
	221	egl_dmabuf_import_texture(dmabuf);
	222	if (!dmabuf->texture) {
	223	return;
	224	}
	225	egl_fb_setup_for_tex(&vc->gfx.cursor_fb, dmabuf->width, dmabuf->height,
	226	dmabuf->texture, false);
	227	} else {
	228	egl_fb_destroy(&vc->gfx.cursor_fb);
	229	}
	230	#endif
	231	}
	232
	233	void gd_egl_cursor_position(DisplayChangeListener *dcl,
	234	uint32_t pos_x, uint32_t pos_y)
	235	{
	236	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	237
	238	vc->gfx.cursor_x = pos_x;
	239	vc->gfx.cursor_y = pos_y;
	240	}
	241
70763fea GH	242	void gd_egl_release_dmabuf(DisplayChangeListener *dcl,
	243	QemuDmaBuf *dmabuf)
	244	{
	245	#ifdef CONFIG_OPENGL_DMABUF
	246	egl_dmabuf_release_texture(dmabuf);
	247	#endif
	248	}
	249
4782aeb7 GH	250	void gd_egl_scanout_flush(DisplayChangeListener *dcl,
	251	uint32_t x, uint32_t y, uint32_t w, uint32_t h)
	252	{
	253	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	254	GdkWindow *window;
a4f113fd	255	int ww, wh;
4782aeb7 GH	256
	257	if (!vc->gfx.scanout_mode) {
	258	return;
	259	}
a4f113fd	260	if (!vc->gfx.guest_fb.framebuffer) {
4782aeb7 GH	261	return;
	262	}
	263
	264	eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	265	vc->gfx.esurface, vc->gfx.ectx);
	266
4782aeb7 GH	267	window = gtk_widget_get_window(vc->gfx.drawing_area);
4782aeb7 GH	268	gdk_drawable_get_size(window, &ww, &wh);
a4f113fd	269	egl_fb_setup_default(&vc->gfx.win_fb, ww, wh);
f1bd3132 GH	270	if (vc->gfx.cursor_fb.texture) {
	271	egl_texture_blit(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.guest_fb,
	272	vc->gfx.y0_top);
	273	egl_texture_blend(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.cursor_fb,
	274	vc->gfx.y0_top,
	275	vc->gfx.cursor_x, vc->gfx.cursor_y);
	276	} else {
	277	egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
	278	}
4782aeb7 GH	279
	280	eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
	281	}
	282
54d208ff	283	void gtk_egl_init(DisplayGLMode mode)
97edf3bd GH	284	{
	285	GdkDisplay *gdk_display = gdk_display_get_default();
	286	Display *x11_display = gdk_x11_display_get_xdisplay(gdk_display);
	287
54d208ff	288	if (qemu_egl_init_dpy_x11(x11_display, mode) < 0) {
97edf3bd GH	289	return;
	290	}
	291
	292	display_opengl = 1;
	293	}
4782aeb7 GH	294
	295	int gd_egl_make_current(DisplayChangeListener *dcl,
	296	QEMUGLContext ctx)
	297	{
	298	VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
	299
	300	return eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
	301	vc->gfx.esurface, ctx);
	302	}