2 * GTK UI -- glarea opengl code.
4 * Requires 3.16+ (GtkGLArea widget).
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.
10 #include "qemu/osdep.h"
14 #include "ui/console.h"
16 #include "ui/egl-helpers.h"
18 #include "sysemu/sysemu.h"
20 static void gtk_gl_area_set_scanout_mode(VirtualConsole
*vc
, bool scanout
)
22 if (vc
->gfx
.scanout_mode
== scanout
) {
26 vc
->gfx
.scanout_mode
= scanout
;
27 if (!vc
->gfx
.scanout_mode
) {
28 egl_fb_destroy(&vc
->gfx
.guest_fb
);
29 if (vc
->gfx
.surface
) {
30 surface_gl_destroy_texture(vc
->gfx
.gls
, vc
->gfx
.ds
);
31 surface_gl_create_texture(vc
->gfx
.gls
, vc
->gfx
.ds
);
36 /** DisplayState Callbacks (opengl version) **/
38 void gd_gl_area_draw(VirtualConsole
*vc
)
46 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
47 ww
= gtk_widget_get_allocated_width(vc
->gfx
.drawing_area
);
48 wh
= gtk_widget_get_allocated_height(vc
->gfx
.drawing_area
);
50 if (vc
->gfx
.scanout_mode
) {
51 if (!vc
->gfx
.guest_fb
.framebuffer
) {
55 glBindFramebuffer(GL_READ_FRAMEBUFFER
, vc
->gfx
.guest_fb
.framebuffer
);
56 /* GtkGLArea sets GL_DRAW_FRAMEBUFFER for us */
58 glViewport(0, 0, ww
, wh
);
59 y1
= vc
->gfx
.y0_top
? 0 : vc
->gfx
.h
;
60 y2
= vc
->gfx
.y0_top
? vc
->gfx
.h
: 0;
61 glBlitFramebuffer(0, y1
, vc
->gfx
.w
, y2
,
63 GL_COLOR_BUFFER_BIT
, GL_NEAREST
);
68 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
70 surface_gl_setup_viewport(vc
->gfx
.gls
, vc
->gfx
.ds
, ww
, wh
);
71 surface_gl_render_texture(vc
->gfx
.gls
, vc
->gfx
.ds
);
75 void gd_gl_area_update(DisplayChangeListener
*dcl
,
76 int x
, int y
, int w
, int h
)
78 VirtualConsole
*vc
= container_of(dcl
, VirtualConsole
, gfx
.dcl
);
80 if (!vc
->gfx
.gls
|| !vc
->gfx
.ds
) {
84 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
85 surface_gl_update_texture(vc
->gfx
.gls
, vc
->gfx
.ds
, x
, y
, w
, h
);
89 void gd_gl_area_refresh(DisplayChangeListener
*dcl
)
91 VirtualConsole
*vc
= container_of(dcl
, VirtualConsole
, gfx
.dcl
);
94 if (!gtk_widget_get_realized(vc
->gfx
.drawing_area
)) {
97 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
98 vc
->gfx
.gls
= qemu_gl_init_shader();
100 surface_gl_create_texture(vc
->gfx
.gls
, vc
->gfx
.ds
);
104 graphic_hw_update(dcl
->con
);
106 if (vc
->gfx
.glupdates
) {
107 vc
->gfx
.glupdates
= 0;
108 gtk_gl_area_set_scanout_mode(vc
, false);
109 gtk_gl_area_queue_render(GTK_GL_AREA(vc
->gfx
.drawing_area
));
113 void gd_gl_area_switch(DisplayChangeListener
*dcl
,
114 DisplaySurface
*surface
)
116 VirtualConsole
*vc
= container_of(dcl
, VirtualConsole
, gfx
.dcl
);
119 trace_gd_switch(vc
->label
, surface_width(surface
), surface_height(surface
));
122 surface_width(vc
->gfx
.ds
) == surface_width(surface
) &&
123 surface_height(vc
->gfx
.ds
) == surface_height(surface
)) {
128 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
129 surface_gl_destroy_texture(vc
->gfx
.gls
, vc
->gfx
.ds
);
130 surface_gl_create_texture(vc
->gfx
.gls
, surface
);
132 vc
->gfx
.ds
= surface
;
135 gd_update_windowsize(vc
);
139 QEMUGLContext
gd_gl_area_create_context(DisplayChangeListener
*dcl
,
140 QEMUGLParams
*params
)
142 VirtualConsole
*vc
= container_of(dcl
, VirtualConsole
, gfx
.dcl
);
147 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
148 window
= gtk_widget_get_window(vc
->gfx
.drawing_area
);
149 ctx
= gdk_window_create_gl_context(window
, &err
);
150 gdk_gl_context_set_required_version(ctx
,
153 gdk_gl_context_realize(ctx
, &err
);
157 void gd_gl_area_destroy_context(DisplayChangeListener
*dcl
, QEMUGLContext ctx
)
162 void gd_gl_area_scanout_texture(DisplayChangeListener
*dcl
,
164 bool backing_y_0_top
,
165 uint32_t backing_width
,
166 uint32_t backing_height
,
167 uint32_t x
, uint32_t y
,
168 uint32_t w
, uint32_t h
)
170 VirtualConsole
*vc
= container_of(dcl
, VirtualConsole
, gfx
.dcl
);
176 vc
->gfx
.y0_top
= backing_y_0_top
;
178 gtk_gl_area_make_current(GTK_GL_AREA(vc
->gfx
.drawing_area
));
180 if (backing_id
== 0 || vc
->gfx
.w
== 0 || vc
->gfx
.h
== 0) {
181 gtk_gl_area_set_scanout_mode(vc
, false);
185 gtk_gl_area_set_scanout_mode(vc
, true);
186 egl_fb_setup_for_tex(&vc
->gfx
.guest_fb
, backing_width
, backing_height
,
190 void gd_gl_area_scanout_flush(DisplayChangeListener
*dcl
,
191 uint32_t x
, uint32_t y
, uint32_t w
, uint32_t h
)
193 VirtualConsole
*vc
= container_of(dcl
, VirtualConsole
, gfx
.dcl
);
195 gtk_gl_area_queue_render(GTK_GL_AREA(vc
->gfx
.drawing_area
));
198 void gtk_gl_area_init(void)
203 QEMUGLContext
gd_gl_area_get_current_context(DisplayChangeListener
*dcl
)
205 return gdk_gl_context_get_current();
208 int gd_gl_area_make_current(DisplayChangeListener
*dcl
,
211 gdk_gl_context_make_current(ctx
);