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1 | /* | |
2 | * GTK UI -- glarea opengl code. | |
3 | * | |
4 | * Requires 3.16+ (GtkGLArea widget). | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
7 | * See the COPYING file in the top-level directory. | |
8 | */ | |
9 | ||
10 | #include "qemu/osdep.h" | |
11 | #include "qemu/main-loop.h" | |
12 | ||
13 | #include "trace.h" | |
14 | ||
15 | #include "ui/console.h" | |
16 | #include "ui/gtk.h" | |
17 | #include "ui/egl-helpers.h" | |
18 | ||
19 | #include "sysemu/sysemu.h" | |
20 | ||
21 | static void gtk_gl_area_set_scanout_mode(VirtualConsole *vc, bool scanout) | |
22 | { | |
23 | if (vc->gfx.scanout_mode == scanout) { | |
24 | return; | |
25 | } | |
26 | ||
27 | vc->gfx.scanout_mode = scanout; | |
28 | if (!vc->gfx.scanout_mode) { | |
29 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
30 | egl_fb_destroy(&vc->gfx.guest_fb); | |
31 | if (vc->gfx.surface) { | |
32 | surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds); | |
33 | surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds); | |
34 | } | |
35 | } | |
36 | } | |
37 | ||
38 | /** DisplayState Callbacks (opengl version) **/ | |
39 | ||
40 | void gd_gl_area_draw(VirtualConsole *vc) | |
41 | { | |
42 | #ifdef CONFIG_GBM | |
43 | QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf; | |
44 | #endif | |
45 | int ww, wh, ws, y1, y2; | |
46 | ||
47 | if (!vc->gfx.gls) { | |
48 | return; | |
49 | } | |
50 | ||
51 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
52 | ws = gdk_window_get_scale_factor(gtk_widget_get_window(vc->gfx.drawing_area)); | |
53 | ww = gtk_widget_get_allocated_width(vc->gfx.drawing_area) * ws; | |
54 | wh = gtk_widget_get_allocated_height(vc->gfx.drawing_area) * ws; | |
55 | ||
56 | if (vc->gfx.scanout_mode) { | |
57 | if (!vc->gfx.guest_fb.framebuffer) { | |
58 | return; | |
59 | } | |
60 | ||
61 | #ifdef CONFIG_GBM | |
62 | if (dmabuf) { | |
63 | if (!qemu_dmabuf_get_draw_submitted(dmabuf)) { | |
64 | return; | |
65 | } else { | |
66 | qemu_dmabuf_set_draw_submitted(dmabuf, false); | |
67 | } | |
68 | } | |
69 | #endif | |
70 | ||
71 | glBindFramebuffer(GL_READ_FRAMEBUFFER, vc->gfx.guest_fb.framebuffer); | |
72 | /* GtkGLArea sets GL_DRAW_FRAMEBUFFER for us */ | |
73 | ||
74 | glViewport(0, 0, ww, wh); | |
75 | y1 = vc->gfx.y0_top ? 0 : vc->gfx.h; | |
76 | y2 = vc->gfx.y0_top ? vc->gfx.h : 0; | |
77 | glBlitFramebuffer(0, y1, vc->gfx.w, y2, | |
78 | 0, 0, ww, wh, | |
79 | GL_COLOR_BUFFER_BIT, GL_NEAREST); | |
80 | #ifdef CONFIG_GBM | |
81 | if (dmabuf) { | |
82 | egl_dmabuf_create_sync(dmabuf); | |
83 | } | |
84 | #endif | |
85 | glFlush(); | |
86 | #ifdef CONFIG_GBM | |
87 | if (dmabuf) { | |
88 | int fence_fd; | |
89 | egl_dmabuf_create_fence(dmabuf); | |
90 | fence_fd = qemu_dmabuf_get_fence_fd(dmabuf); | |
91 | if (fence_fd >= 0) { | |
92 | qemu_set_fd_handler(fence_fd, gd_hw_gl_flushed, NULL, vc); | |
93 | return; | |
94 | } | |
95 | graphic_hw_gl_block(vc->gfx.dcl.con, false); | |
96 | } | |
97 | #endif | |
98 | } else { | |
99 | if (!vc->gfx.ds) { | |
100 | return; | |
101 | } | |
102 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
103 | ||
104 | surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh); | |
105 | surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds); | |
106 | } | |
107 | } | |
108 | ||
109 | void gd_gl_area_update(DisplayChangeListener *dcl, | |
110 | int x, int y, int w, int h) | |
111 | { | |
112 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
113 | ||
114 | if (!vc->gfx.gls || !vc->gfx.ds) { | |
115 | return; | |
116 | } | |
117 | ||
118 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
119 | surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h); | |
120 | vc->gfx.glupdates++; | |
121 | gdk_gl_context_clear_current(); | |
122 | } | |
123 | ||
124 | void gd_gl_area_refresh(DisplayChangeListener *dcl) | |
125 | { | |
126 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
127 | ||
128 | gd_update_monitor_refresh_rate(vc, vc->window ? vc->window : vc->gfx.drawing_area); | |
129 | ||
130 | if (vc->gfx.guest_fb.dmabuf && | |
131 | qemu_dmabuf_get_draw_submitted(vc->gfx.guest_fb.dmabuf)) { | |
132 | gd_gl_area_draw(vc); | |
133 | return; | |
134 | } | |
135 | ||
136 | if (!vc->gfx.gls) { | |
137 | if (!gtk_widget_get_realized(vc->gfx.drawing_area)) { | |
138 | return; | |
139 | } | |
140 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
141 | vc->gfx.gls = qemu_gl_init_shader(); | |
142 | if (vc->gfx.ds) { | |
143 | surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds); | |
144 | } | |
145 | } | |
146 | ||
147 | graphic_hw_update(dcl->con); | |
148 | ||
149 | if (vc->gfx.glupdates) { | |
150 | vc->gfx.glupdates = 0; | |
151 | gtk_gl_area_set_scanout_mode(vc, false); | |
152 | gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area)); | |
153 | } | |
154 | } | |
155 | ||
156 | void gd_gl_area_switch(DisplayChangeListener *dcl, | |
157 | DisplaySurface *surface) | |
158 | { | |
159 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
160 | bool resized = true; | |
161 | ||
162 | trace_gd_switch(vc->label, surface_width(surface), surface_height(surface)); | |
163 | ||
164 | if (vc->gfx.ds && | |
165 | surface_width(vc->gfx.ds) == surface_width(surface) && | |
166 | surface_height(vc->gfx.ds) == surface_height(surface)) { | |
167 | resized = false; | |
168 | } | |
169 | ||
170 | if (vc->gfx.gls) { | |
171 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
172 | surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds); | |
173 | surface_gl_create_texture(vc->gfx.gls, surface); | |
174 | } | |
175 | vc->gfx.ds = surface; | |
176 | ||
177 | if (resized) { | |
178 | gd_update_windowsize(vc); | |
179 | } | |
180 | } | |
181 | ||
182 | static int gd_cmp_gl_context_version(int major, int minor, QEMUGLParams *params) | |
183 | { | |
184 | if (major > params->major_ver) { | |
185 | return 1; | |
186 | } | |
187 | if (major < params->major_ver) { | |
188 | return -1; | |
189 | } | |
190 | if (minor > params->minor_ver) { | |
191 | return 1; | |
192 | } | |
193 | if (minor < params->minor_ver) { | |
194 | return -1; | |
195 | } | |
196 | return 0; | |
197 | } | |
198 | ||
199 | QEMUGLContext gd_gl_area_create_context(DisplayGLCtx *dgc, | |
200 | QEMUGLParams *params) | |
201 | { | |
202 | VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc); | |
203 | GdkWindow *window; | |
204 | GdkGLContext *ctx; | |
205 | GError *err = NULL; | |
206 | int major, minor; | |
207 | ||
208 | window = gtk_widget_get_window(vc->gfx.drawing_area); | |
209 | ctx = gdk_window_create_gl_context(window, &err); | |
210 | if (err) { | |
211 | g_printerr("Create gdk gl context failed: %s\n", err->message); | |
212 | g_error_free(err); | |
213 | return NULL; | |
214 | } | |
215 | gdk_gl_context_set_required_version(ctx, | |
216 | params->major_ver, | |
217 | params->minor_ver); | |
218 | gdk_gl_context_realize(ctx, &err); | |
219 | if (err) { | |
220 | g_printerr("Realize gdk gl context failed: %s\n", err->message); | |
221 | g_error_free(err); | |
222 | g_clear_object(&ctx); | |
223 | return NULL; | |
224 | } | |
225 | ||
226 | gdk_gl_context_make_current(ctx); | |
227 | gdk_gl_context_get_version(ctx, &major, &minor); | |
228 | gdk_gl_context_clear_current(); | |
229 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
230 | ||
231 | if (gd_cmp_gl_context_version(major, minor, params) == -1) { | |
232 | /* created ctx version < requested version */ | |
233 | g_clear_object(&ctx); | |
234 | } | |
235 | ||
236 | trace_gd_gl_area_create_context(ctx, params->major_ver, params->minor_ver); | |
237 | return ctx; | |
238 | } | |
239 | ||
240 | void gd_gl_area_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx) | |
241 | { | |
242 | GdkGLContext *current_ctx = gdk_gl_context_get_current(); | |
243 | ||
244 | trace_gd_gl_area_destroy_context(ctx, current_ctx); | |
245 | if (ctx == current_ctx) { | |
246 | gdk_gl_context_clear_current(); | |
247 | } | |
248 | g_clear_object(&ctx); | |
249 | } | |
250 | ||
251 | void gd_gl_area_scanout_texture(DisplayChangeListener *dcl, | |
252 | uint32_t backing_id, | |
253 | bool backing_y_0_top, | |
254 | uint32_t backing_width, | |
255 | uint32_t backing_height, | |
256 | uint32_t x, uint32_t y, | |
257 | uint32_t w, uint32_t h, | |
258 | void *d3d_tex2d) | |
259 | { | |
260 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
261 | ||
262 | vc->gfx.x = x; | |
263 | vc->gfx.y = y; | |
264 | vc->gfx.w = w; | |
265 | vc->gfx.h = h; | |
266 | vc->gfx.y0_top = backing_y_0_top; | |
267 | ||
268 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
269 | ||
270 | if (backing_id == 0 || vc->gfx.w == 0 || vc->gfx.h == 0) { | |
271 | gtk_gl_area_set_scanout_mode(vc, false); | |
272 | return; | |
273 | } | |
274 | ||
275 | gtk_gl_area_set_scanout_mode(vc, true); | |
276 | egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height, | |
277 | backing_id, false); | |
278 | } | |
279 | ||
280 | void gd_gl_area_scanout_disable(DisplayChangeListener *dcl) | |
281 | { | |
282 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
283 | ||
284 | gtk_gl_area_set_scanout_mode(vc, false); | |
285 | } | |
286 | ||
287 | void gd_gl_area_scanout_flush(DisplayChangeListener *dcl, | |
288 | uint32_t x, uint32_t y, uint32_t w, uint32_t h) | |
289 | { | |
290 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
291 | ||
292 | if (vc->gfx.guest_fb.dmabuf && | |
293 | !qemu_dmabuf_get_draw_submitted(vc->gfx.guest_fb.dmabuf)) { | |
294 | graphic_hw_gl_block(vc->gfx.dcl.con, true); | |
295 | qemu_dmabuf_set_draw_submitted(vc->gfx.guest_fb.dmabuf, true); | |
296 | gtk_gl_area_set_scanout_mode(vc, true); | |
297 | } | |
298 | gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area)); | |
299 | } | |
300 | ||
301 | void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl, | |
302 | QemuDmaBuf *dmabuf) | |
303 | { | |
304 | #ifdef CONFIG_GBM | |
305 | VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); | |
306 | uint32_t x, y, width, height, backing_width, backing_height, texture; | |
307 | bool y0_top; | |
308 | ||
309 | gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); | |
310 | egl_dmabuf_import_texture(dmabuf); | |
311 | texture = qemu_dmabuf_get_texture(dmabuf); | |
312 | if (!texture) { | |
313 | return; | |
314 | } | |
315 | ||
316 | x = qemu_dmabuf_get_x(dmabuf); | |
317 | y = qemu_dmabuf_get_y(dmabuf); | |
318 | width = qemu_dmabuf_get_width(dmabuf); | |
319 | height = qemu_dmabuf_get_height(dmabuf); | |
320 | backing_width = qemu_dmabuf_get_backing_width(dmabuf); | |
321 | backing_height = qemu_dmabuf_get_backing_height(dmabuf); | |
322 | y0_top = qemu_dmabuf_get_y0_top(dmabuf); | |
323 | ||
324 | gd_gl_area_scanout_texture(dcl, texture, y0_top, | |
325 | backing_width, backing_height, | |
326 | x, y, width, height, NULL); | |
327 | ||
328 | if (qemu_dmabuf_get_allow_fences(dmabuf)) { | |
329 | vc->gfx.guest_fb.dmabuf = dmabuf; | |
330 | } | |
331 | #endif | |
332 | } | |
333 | ||
334 | void gtk_gl_area_init(void) | |
335 | { | |
336 | display_opengl = 1; | |
337 | } | |
338 | ||
339 | int gd_gl_area_make_current(DisplayGLCtx *dgc, | |
340 | QEMUGLContext ctx) | |
341 | { | |
342 | gdk_gl_context_make_current(ctx); | |
343 | return 0; | |
344 | } |