2 * GTK UI -- egl opengl code.
4 * Note that gtk 3.16+ (released 2015-03-23) has a GtkGLArea widget,
5 * which is GtkDrawingArea like widget with opengl rendering support.
7 * This code handles opengl support on older gtk versions, using egl
8 * to get a opengl context for the X11 window.
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.
14 #include "qemu/osdep.h"
15 #include "qemu/main-loop.h"
19 #include "ui/console.h"
21 #include "ui/egl-helpers.h"
22 #include "ui/shader.h"
24 #include "sysemu/sysemu.h"
26 static void gtk_egl_set_scanout_mode(VirtualConsole *vc, bool scanout)
28 if (vc->gfx.scanout_mode == scanout) {
32 vc->gfx.scanout_mode = scanout;
33 if (!vc->gfx.scanout_mode) {
34 egl_fb_destroy(&vc->gfx.guest_fb);
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);
42 /** DisplayState Callbacks (opengl version) **/
44 void gd_egl_init(VirtualConsole *vc)
46 GdkWindow *gdk_window = gtk_widget_get_window(vc->gfx.drawing_area);
51 Window x11_window = gdk_x11_window_get_xid(gdk_window);
56 vc->gfx.ectx = qemu_egl_init_ctx();
57 vc->gfx.esurface = qemu_egl_init_surface_x11
58 (vc->gfx.ectx, (EGLNativeWindowType)x11_window);
60 assert(vc->gfx.esurface);
63 void gd_egl_draw(VirtualConsole *vc)
67 QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf;
75 window = gtk_widget_get_window(vc->gfx.drawing_area);
76 ww = gdk_window_get_width(window);
77 wh = gdk_window_get_height(window);
79 if (vc->gfx.scanout_mode) {
82 if (!dmabuf->draw_submitted) {
85 dmabuf->draw_submitted = false;
89 gd_egl_scanout_flush(&vc->gfx.dcl, 0, 0, vc->gfx.w, vc->gfx.h);
91 vc->gfx.scale_x = (double)ww / vc->gfx.w;
92 vc->gfx.scale_y = (double)wh / vc->gfx.h;
97 egl_dmabuf_create_fence(dmabuf);
98 if (dmabuf->fence_fd > 0) {
99 qemu_set_fd_handler(dmabuf->fence_fd, gd_hw_gl_flushed, NULL, vc);
102 graphic_hw_gl_block(vc->gfx.dcl.con, false);
109 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
110 vc->gfx.esurface, vc->gfx.ectx);
112 surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh);
113 surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
115 eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
117 vc->gfx.scale_x = (double)ww / surface_width(vc->gfx.ds);
118 vc->gfx.scale_y = (double)wh / surface_height(vc->gfx.ds);
124 void gd_egl_update(DisplayChangeListener *dcl,
125 int x, int y, int w, int h)
127 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
129 if (!vc->gfx.gls || !vc->gfx.ds) {
133 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
134 vc->gfx.esurface, vc->gfx.ectx);
135 surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h);
139 void gd_egl_refresh(DisplayChangeListener *dcl)
141 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
143 gd_update_monitor_refresh_rate(
144 vc, vc->window ? vc->window : vc->gfx.drawing_area);
146 if (!vc->gfx.esurface) {
148 if (!vc->gfx.esurface) {
151 vc->gfx.gls = qemu_gl_init_shader();
153 surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
154 surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
157 if (vc->gfx.guest_fb.dmabuf) {
158 egl_dmabuf_release_texture(vc->gfx.guest_fb.dmabuf);
159 gd_egl_scanout_dmabuf(dcl, vc->gfx.guest_fb.dmabuf);
164 graphic_hw_update(dcl->con);
166 if (vc->gfx.glupdates) {
167 vc->gfx.glupdates = 0;
168 gtk_egl_set_scanout_mode(vc, false);
173 void gd_egl_switch(DisplayChangeListener *dcl,
174 DisplaySurface *surface)
176 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
179 trace_gd_switch(vc->label, surface_width(surface), surface_height(surface));
182 surface_width(vc->gfx.ds) == surface_width(surface) &&
183 surface_height(vc->gfx.ds) == surface_height(surface)) {
186 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
187 vc->gfx.esurface, vc->gfx.ectx);
189 surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
190 vc->gfx.ds = surface;
192 surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
196 gd_update_windowsize(vc);
199 eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
203 QEMUGLContext gd_egl_create_context(DisplayGLCtx *dgc,
204 QEMUGLParams *params)
206 VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
208 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
209 vc->gfx.esurface, vc->gfx.ectx);
210 return qemu_egl_create_context(dgc, params);
213 void gd_egl_scanout_disable(DisplayChangeListener *dcl)
215 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
219 gtk_egl_set_scanout_mode(vc, false);
222 void gd_egl_scanout_texture(DisplayChangeListener *dcl,
223 uint32_t backing_id, bool backing_y_0_top,
224 uint32_t backing_width, uint32_t backing_height,
225 uint32_t x, uint32_t y,
226 uint32_t w, uint32_t h)
228 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
234 vc->gfx.y0_top = backing_y_0_top;
236 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
237 vc->gfx.esurface, vc->gfx.ectx);
239 gtk_egl_set_scanout_mode(vc, true);
240 egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height,
244 void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
248 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
250 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
251 vc->gfx.esurface, vc->gfx.ectx);
253 egl_dmabuf_import_texture(dmabuf);
254 if (!dmabuf->texture) {
258 gd_egl_scanout_texture(dcl, dmabuf->texture,
259 false, dmabuf->width, dmabuf->height,
260 0, 0, dmabuf->width, dmabuf->height);
262 if (dmabuf->allow_fences) {
263 vc->gfx.guest_fb.dmabuf = dmabuf;
268 void gd_egl_cursor_dmabuf(DisplayChangeListener *dcl,
269 QemuDmaBuf *dmabuf, bool have_hot,
270 uint32_t hot_x, uint32_t hot_y)
273 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
276 egl_dmabuf_import_texture(dmabuf);
277 if (!dmabuf->texture) {
280 egl_fb_setup_for_tex(&vc->gfx.cursor_fb, dmabuf->width, dmabuf->height,
281 dmabuf->texture, false);
283 egl_fb_destroy(&vc->gfx.cursor_fb);
288 void gd_egl_cursor_position(DisplayChangeListener *dcl,
289 uint32_t pos_x, uint32_t pos_y)
291 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
293 vc->gfx.cursor_x = pos_x * vc->gfx.scale_x;
294 vc->gfx.cursor_y = pos_y * vc->gfx.scale_y;
297 void gd_egl_scanout_flush(DisplayChangeListener *dcl,
298 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
300 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
304 if (!vc->gfx.scanout_mode) {
307 if (!vc->gfx.guest_fb.framebuffer) {
311 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
312 vc->gfx.esurface, vc->gfx.ectx);
314 window = gtk_widget_get_window(vc->gfx.drawing_area);
315 ww = gdk_window_get_width(window);
316 wh = gdk_window_get_height(window);
317 egl_fb_setup_default(&vc->gfx.win_fb, ww, wh);
318 if (vc->gfx.cursor_fb.texture) {
319 egl_texture_blit(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.guest_fb,
321 egl_texture_blend(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.cursor_fb,
323 vc->gfx.cursor_x, vc->gfx.cursor_y,
324 vc->gfx.scale_x, vc->gfx.scale_y);
326 egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
330 if (vc->gfx.guest_fb.dmabuf) {
331 egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf);
335 eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
338 void gd_egl_flush(DisplayChangeListener *dcl,
339 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
341 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
342 GtkWidget *area = vc->gfx.drawing_area;
344 if (vc->gfx.guest_fb.dmabuf && !vc->gfx.guest_fb.dmabuf->draw_submitted) {
345 graphic_hw_gl_block(vc->gfx.dcl.con, true);
346 vc->gfx.guest_fb.dmabuf->draw_submitted = true;
347 gtk_widget_queue_draw_area(area, x, y, w, h);
351 gd_egl_scanout_flush(&vc->gfx.dcl, x, y, w, h);
354 void gtk_egl_init(DisplayGLMode mode)
356 GdkDisplay *gdk_display = gdk_display_get_default();
357 Display *x11_display = gdk_x11_display_get_xdisplay(gdk_display);
359 if (qemu_egl_init_dpy_x11(x11_display, mode) < 0) {
366 int gd_egl_make_current(DisplayGLCtx *dgc,
369 VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
371 return eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
372 vc->gfx.esurface, ctx);