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