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