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1 #include "qemu/osdep.h"
2 #include "qemu/error-report.h"
3 #include "qemu/module.h"
4 #include "qapi/error.h"
5 #include "ui/console.h"
6 #include "ui/egl-helpers.h"
7 #include "ui/egl-context.h"
8 #include "ui/shader.h"
9
10 typedef struct egl_dpy {
11 DisplayChangeListener dcl;
12 DisplaySurface *ds;
13 QemuGLShader *gls;
14 egl_fb guest_fb;
15 egl_fb cursor_fb;
16 egl_fb blit_fb;
17 bool y_0_top;
18 uint32_t pos_x;
19 uint32_t pos_y;
20 } egl_dpy;
21
22 /* ------------------------------------------------------------------ */
23
24 static void egl_refresh(DisplayChangeListener *dcl)
25 {
26 graphic_hw_update(dcl->con);
27 }
28
29 static void egl_gfx_update(DisplayChangeListener *dcl,
30 int x, int y, int w, int h)
31 {
32 }
33
34 static void egl_gfx_switch(DisplayChangeListener *dcl,
35 struct DisplaySurface *new_surface)
36 {
37 egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
38
39 edpy->ds = new_surface;
40 }
41
42 static QEMUGLContext egl_create_context(DisplayGLCtx *dgc,
43 QEMUGLParams *params)
44 {
45 eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
46 qemu_egl_rn_ctx);
47 return qemu_egl_create_context(dgc, params);
48 }
49
50 static void egl_scanout_disable(DisplayChangeListener *dcl)
51 {
52 egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
53
54 egl_fb_destroy(&edpy->guest_fb);
55 egl_fb_destroy(&edpy->blit_fb);
56 }
57
58 static void egl_scanout_texture(DisplayChangeListener *dcl,
59 uint32_t backing_id,
60 bool backing_y_0_top,
61 uint32_t backing_width,
62 uint32_t backing_height,
63 uint32_t x, uint32_t y,
64 uint32_t w, uint32_t h,
65 void *d3d_tex2d)
66 {
67 egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
68
69 edpy->y_0_top = backing_y_0_top;
70
71 /* source framebuffer */
72 egl_fb_setup_for_tex(&edpy->guest_fb,
73 backing_width, backing_height, backing_id, false);
74
75 /* dest framebuffer */
76 if (edpy->blit_fb.width != backing_width ||
77 edpy->blit_fb.height != backing_height) {
78 egl_fb_destroy(&edpy->blit_fb);
79 egl_fb_setup_new_tex(&edpy->blit_fb, backing_width, backing_height);
80 }
81 }
82
83 #ifdef CONFIG_GBM
84
85 static void egl_scanout_dmabuf(DisplayChangeListener *dcl,
86 QemuDmaBuf *dmabuf)
87 {
88 egl_dmabuf_import_texture(dmabuf);
89 if (!dmabuf->texture) {
90 return;
91 }
92
93 egl_scanout_texture(dcl, dmabuf->texture,
94 false, dmabuf->width, dmabuf->height,
95 0, 0, dmabuf->width, dmabuf->height, NULL);
96 }
97
98 static void egl_cursor_dmabuf(DisplayChangeListener *dcl,
99 QemuDmaBuf *dmabuf, bool have_hot,
100 uint32_t hot_x, uint32_t hot_y)
101 {
102 egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
103
104 if (dmabuf) {
105 egl_dmabuf_import_texture(dmabuf);
106 if (!dmabuf->texture) {
107 return;
108 }
109 egl_fb_setup_for_tex(&edpy->cursor_fb, dmabuf->width, dmabuf->height,
110 dmabuf->texture, false);
111 } else {
112 egl_fb_destroy(&edpy->cursor_fb);
113 }
114 }
115
116 static void egl_release_dmabuf(DisplayChangeListener *dcl,
117 QemuDmaBuf *dmabuf)
118 {
119 egl_dmabuf_release_texture(dmabuf);
120 }
121
122 #endif
123
124 static void egl_cursor_position(DisplayChangeListener *dcl,
125 uint32_t pos_x, uint32_t pos_y)
126 {
127 egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
128
129 edpy->pos_x = pos_x;
130 edpy->pos_y = pos_y;
131 }
132
133 static void egl_scanout_flush(DisplayChangeListener *dcl,
134 uint32_t x, uint32_t y,
135 uint32_t w, uint32_t h)
136 {
137 egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
138
139 if (!edpy->guest_fb.texture || !edpy->ds) {
140 return;
141 }
142 assert(surface_format(edpy->ds) == PIXMAN_x8r8g8b8);
143
144 if (edpy->cursor_fb.texture) {
145 /* have cursor -> render using textures */
146 egl_texture_blit(edpy->gls, &edpy->blit_fb, &edpy->guest_fb,
147 !edpy->y_0_top);
148 egl_texture_blend(edpy->gls, &edpy->blit_fb, &edpy->cursor_fb,
149 !edpy->y_0_top, edpy->pos_x, edpy->pos_y,
150 1.0, 1.0);
151 } else {
152 /* no cursor -> use simple framebuffer blit */
153 egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top);
154 }
155
156 egl_fb_read(edpy->ds, &edpy->blit_fb);
157 dpy_gfx_update(edpy->dcl.con, x, y, w, h);
158 }
159
160 static const DisplayChangeListenerOps egl_ops = {
161 .dpy_name = "egl-headless",
162 .dpy_refresh = egl_refresh,
163 .dpy_gfx_update = egl_gfx_update,
164 .dpy_gfx_switch = egl_gfx_switch,
165
166 .dpy_gl_scanout_disable = egl_scanout_disable,
167 .dpy_gl_scanout_texture = egl_scanout_texture,
168 #ifdef CONFIG_GBM
169 .dpy_gl_scanout_dmabuf = egl_scanout_dmabuf,
170 .dpy_gl_cursor_dmabuf = egl_cursor_dmabuf,
171 .dpy_gl_release_dmabuf = egl_release_dmabuf,
172 #endif
173 .dpy_gl_cursor_position = egl_cursor_position,
174 .dpy_gl_update = egl_scanout_flush,
175 };
176
177 static bool
178 egl_is_compatible_dcl(DisplayGLCtx *dgc,
179 DisplayChangeListener *dcl)
180 {
181 if (!dcl->ops->dpy_gl_update) {
182 /*
183 * egl-headless is compatible with all 2d listeners, as it blits the GL
184 * updates on the 2d console surface.
185 */
186 return true;
187 }
188
189 return dcl->ops == &egl_ops;
190 }
191
192 static const DisplayGLCtxOps eglctx_ops = {
193 .dpy_gl_ctx_is_compatible_dcl = egl_is_compatible_dcl,
194 .dpy_gl_ctx_create = egl_create_context,
195 .dpy_gl_ctx_destroy = qemu_egl_destroy_context,
196 .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
197 };
198
199 static void early_egl_headless_init(DisplayOptions *opts)
200 {
201 DisplayGLMode mode = DISPLAYGL_MODE_ON;
202
203 if (opts->has_gl) {
204 mode = opts->gl;
205 }
206
207 egl_init(opts->u.egl_headless.rendernode, mode, &error_fatal);
208 }
209
210 static void egl_headless_init(DisplayState *ds, DisplayOptions *opts)
211 {
212 QemuConsole *con;
213 egl_dpy *edpy;
214 int idx;
215
216 for (idx = 0;; idx++) {
217 DisplayGLCtx *ctx;
218
219 con = qemu_console_lookup_by_index(idx);
220 if (!con || !qemu_console_is_graphic(con)) {
221 break;
222 }
223
224 edpy = g_new0(egl_dpy, 1);
225 edpy->dcl.con = con;
226 edpy->dcl.ops = &egl_ops;
227 edpy->gls = qemu_gl_init_shader();
228 ctx = g_new0(DisplayGLCtx, 1);
229 ctx->ops = &eglctx_ops;
230 qemu_console_set_display_gl_ctx(con, ctx);
231 register_displaychangelistener(&edpy->dcl);
232 }
233 }
234
235 static QemuDisplay qemu_display_egl = {
236 .type = DISPLAY_TYPE_EGL_HEADLESS,
237 .early_init = early_egl_headless_init,
238 .init = egl_headless_init,
239 };
240
241 static void register_egl(void)
242 {
243 qemu_display_register(&qemu_display_egl);
244 }
245
246 type_init(register_egl);
247
248 module_dep("ui-opengl");