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"
16 #include "qemu/error-report.h"
20 #include "ui/console.h"
22 #include "ui/egl-helpers.h"
23 #include "ui/shader.h"
25 #include "sysemu/sysemu.h"
27 static void gtk_egl_set_scanout_mode(VirtualConsole *vc, bool scanout)
29 if (vc->gfx.scanout_mode == scanout) {
33 vc->gfx.scanout_mode = scanout;
34 if (!vc->gfx.scanout_mode) {
35 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
36 vc->gfx.esurface, vc->gfx.ectx);
37 egl_fb_destroy(&vc->gfx.guest_fb);
38 if (vc->gfx.surface) {
39 surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
40 surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
45 /** DisplayState Callbacks (opengl version) **/
47 void gd_egl_init(VirtualConsole *vc)
49 GdkWindow *gdk_window = gtk_widget_get_window(vc->gfx.drawing_area);
54 Window x11_window = gdk_x11_window_get_xid(gdk_window);
59 vc->gfx.ectx = qemu_egl_init_ctx();
60 vc->gfx.esurface = qemu_egl_init_surface_x11
61 (vc->gfx.ectx, (EGLNativeWindowType)x11_window);
63 assert(vc->gfx.esurface);
66 void gd_egl_draw(VirtualConsole *vc)
70 QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf;
78 window = gtk_widget_get_window(vc->gfx.drawing_area);
79 ww = gdk_window_get_width(window);
80 wh = gdk_window_get_height(window);
82 if (vc->gfx.scanout_mode) {
85 if (!dmabuf->draw_submitted) {
88 dmabuf->draw_submitted = false;
92 gd_egl_scanout_flush(&vc->gfx.dcl, 0, 0, vc->gfx.w, vc->gfx.h);
94 vc->gfx.scale_x = (double)ww / surface_width(vc->gfx.ds);
95 vc->gfx.scale_y = (double)wh / surface_height(vc->gfx.ds);
100 egl_dmabuf_create_fence(dmabuf);
101 if (dmabuf->fence_fd > 0) {
102 qemu_set_fd_handler(dmabuf->fence_fd, gd_hw_gl_flushed, NULL, vc);
105 graphic_hw_gl_block(vc->gfx.dcl.con, false);
112 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
113 vc->gfx.esurface, vc->gfx.ectx);
115 surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh);
116 surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
118 eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
120 vc->gfx.scale_x = (double)ww / surface_width(vc->gfx.ds);
121 vc->gfx.scale_y = (double)wh / surface_height(vc->gfx.ds);
127 void gd_egl_update(DisplayChangeListener *dcl,
128 int x, int y, int w, int h)
130 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
132 if (!vc->gfx.gls || !vc->gfx.ds) {
136 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
137 vc->gfx.esurface, vc->gfx.ectx);
138 surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h);
140 eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE,
141 EGL_NO_SURFACE, EGL_NO_CONTEXT);
144 void gd_egl_refresh(DisplayChangeListener *dcl)
146 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
148 gd_update_monitor_refresh_rate(
149 vc, vc->window ? vc->window : vc->gfx.drawing_area);
151 if (vc->gfx.guest_fb.dmabuf && vc->gfx.guest_fb.dmabuf->draw_submitted) {
155 if (!vc->gfx.esurface) {
157 if (!vc->gfx.esurface) {
160 vc->gfx.gls = qemu_gl_init_shader();
162 surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
163 surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
166 if (vc->gfx.guest_fb.dmabuf) {
167 egl_dmabuf_release_texture(vc->gfx.guest_fb.dmabuf);
168 gd_egl_scanout_dmabuf(dcl, vc->gfx.guest_fb.dmabuf);
173 graphic_hw_update(dcl->con);
175 if (vc->gfx.glupdates) {
176 vc->gfx.glupdates = 0;
177 gtk_egl_set_scanout_mode(vc, false);
182 void gd_egl_switch(DisplayChangeListener *dcl,
183 DisplaySurface *surface)
185 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
188 trace_gd_switch(vc->label, surface_width(surface), surface_height(surface));
191 surface_width(vc->gfx.ds) == surface_width(surface) &&
192 surface_height(vc->gfx.ds) == surface_height(surface)) {
195 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
196 vc->gfx.esurface, vc->gfx.ectx);
198 surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
199 vc->gfx.ds = surface;
201 surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
205 gd_update_windowsize(vc);
208 eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
212 QEMUGLContext gd_egl_create_context(DisplayGLCtx *dgc,
213 QEMUGLParams *params)
215 VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
217 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
218 vc->gfx.esurface, vc->gfx.ectx);
219 return qemu_egl_create_context(dgc, params);
222 void gd_egl_scanout_disable(DisplayChangeListener *dcl)
224 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
228 gtk_egl_set_scanout_mode(vc, false);
231 void gd_egl_scanout_texture(DisplayChangeListener *dcl,
232 uint32_t backing_id, bool backing_y_0_top,
233 uint32_t backing_width, uint32_t backing_height,
234 uint32_t x, uint32_t y,
235 uint32_t w, uint32_t h,
238 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
244 vc->gfx.y0_top = backing_y_0_top;
246 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
247 vc->gfx.esurface, vc->gfx.ectx);
249 gtk_egl_set_scanout_mode(vc, true);
250 egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height,
254 void gd_egl_scanout_dmabuf(DisplayChangeListener *dcl,
258 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
260 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
261 vc->gfx.esurface, vc->gfx.ectx);
263 egl_dmabuf_import_texture(dmabuf);
264 if (!dmabuf->texture) {
268 gd_egl_scanout_texture(dcl, dmabuf->texture,
270 dmabuf->backing_width, dmabuf->backing_height,
271 dmabuf->x, dmabuf->y, dmabuf->width,
272 dmabuf->height, NULL);
274 if (dmabuf->allow_fences) {
275 vc->gfx.guest_fb.dmabuf = dmabuf;
280 void gd_egl_cursor_dmabuf(DisplayChangeListener *dcl,
281 QemuDmaBuf *dmabuf, bool have_hot,
282 uint32_t hot_x, uint32_t hot_y)
285 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
288 egl_dmabuf_import_texture(dmabuf);
289 if (!dmabuf->texture) {
292 egl_fb_setup_for_tex(&vc->gfx.cursor_fb,
293 dmabuf->backing_width, dmabuf->backing_height,
294 dmabuf->texture, false);
296 egl_fb_destroy(&vc->gfx.cursor_fb);
301 void gd_egl_cursor_position(DisplayChangeListener *dcl,
302 uint32_t pos_x, uint32_t pos_y)
304 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
306 vc->gfx.cursor_x = pos_x * vc->gfx.scale_x;
307 vc->gfx.cursor_y = pos_y * vc->gfx.scale_y;
310 void gd_egl_scanout_flush(DisplayChangeListener *dcl,
311 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
313 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
317 if (!vc->gfx.scanout_mode) {
320 if (!vc->gfx.guest_fb.framebuffer) {
324 eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
325 vc->gfx.esurface, vc->gfx.ectx);
327 window = gtk_widget_get_window(vc->gfx.drawing_area);
328 ww = gdk_window_get_width(window);
329 wh = gdk_window_get_height(window);
330 egl_fb_setup_default(&vc->gfx.win_fb, ww, wh);
331 if (vc->gfx.cursor_fb.texture) {
332 egl_texture_blit(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.guest_fb,
334 egl_texture_blend(vc->gfx.gls, &vc->gfx.win_fb, &vc->gfx.cursor_fb,
336 vc->gfx.cursor_x, vc->gfx.cursor_y,
337 vc->gfx.scale_x, vc->gfx.scale_y);
339 egl_fb_blit(&vc->gfx.win_fb, &vc->gfx.guest_fb, !vc->gfx.y0_top);
343 if (vc->gfx.guest_fb.dmabuf) {
344 egl_dmabuf_create_sync(vc->gfx.guest_fb.dmabuf);
348 eglSwapBuffers(qemu_egl_display, vc->gfx.esurface);
351 void gd_egl_flush(DisplayChangeListener *dcl,
352 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
354 VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
355 GtkWidget *area = vc->gfx.drawing_area;
357 if (vc->gfx.guest_fb.dmabuf && !vc->gfx.guest_fb.dmabuf->draw_submitted) {
358 graphic_hw_gl_block(vc->gfx.dcl.con, true);
359 vc->gfx.guest_fb.dmabuf->draw_submitted = true;
360 gtk_egl_set_scanout_mode(vc, true);
361 gtk_widget_queue_draw_area(area, x, y, w, h);
365 gd_egl_scanout_flush(&vc->gfx.dcl, x, y, w, h);
368 void gtk_egl_init(DisplayGLMode mode)
370 GdkDisplay *gdk_display = gdk_display_get_default();
371 Display *x11_display = gdk_x11_display_get_xdisplay(gdk_display);
373 if (qemu_egl_init_dpy_x11(x11_display, mode) < 0) {
380 int gd_egl_make_current(DisplayGLCtx *dgc,
383 VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
385 if (!eglMakeCurrent(qemu_egl_display, vc->gfx.esurface,
386 vc->gfx.esurface, ctx)) {
387 error_report("egl: eglMakeCurrent failed: %s", qemu_egl_get_error_string());