1 #include "qemu/osdep.h" 2 #include "qemu-common.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_width(edpy->ds) == edpy->guest_fb.width); 137 assert(surface_height(edpy->ds) == edpy->guest_fb.height); 138 assert(surface_format(edpy->ds) == PIXMAN_x8r8g8b8); 139 140 if (edpy->cursor_fb.texture) { 141 /* have cursor -> render using textures */ 142 egl_texture_blit(edpy->gls, &edpy->blit_fb, &edpy->guest_fb, 143 !edpy->y_0_top); 144 egl_texture_blend(edpy->gls, &edpy->blit_fb, &edpy->cursor_fb, 145 !edpy->y_0_top, edpy->pos_x, edpy->pos_y); 146 } else { 147 /* no cursor -> use simple framebuffer blit */ 148 egl_fb_blit(&edpy->blit_fb, &edpy->guest_fb, edpy->y_0_top); 149 } 150 151 egl_fb_read(surface_data(edpy->ds), &edpy->blit_fb); 152 dpy_gfx_update(edpy->dcl.con, x, y, w, h); 153 } 154 155 static const DisplayChangeListenerOps egl_ops = { 156 .dpy_name = "egl-headless", 157 .dpy_refresh = egl_refresh, 158 .dpy_gfx_update = egl_gfx_update, 159 .dpy_gfx_switch = egl_gfx_switch, 160 161 .dpy_gl_ctx_create = egl_create_context, 162 .dpy_gl_ctx_destroy = qemu_egl_destroy_context, 163 .dpy_gl_ctx_make_current = qemu_egl_make_context_current, 164 .dpy_gl_ctx_get_current = qemu_egl_get_current_context, 165 166 .dpy_gl_scanout_disable = egl_scanout_disable, 167 .dpy_gl_scanout_texture = egl_scanout_texture, 168 .dpy_gl_scanout_dmabuf = egl_scanout_dmabuf, 169 .dpy_gl_cursor_dmabuf = egl_cursor_dmabuf, 170 .dpy_gl_cursor_position = egl_cursor_position, 171 .dpy_gl_release_dmabuf = egl_release_dmabuf, 172 .dpy_gl_update = egl_scanout_flush, 173 }; 174 175 static void early_egl_headless_init(DisplayOptions *opts) 176 { 177 display_opengl = 1; 178 } 179 180 static void egl_headless_init(DisplayState *ds, DisplayOptions *opts) 181 { 182 DisplayGLMode mode = opts->has_gl ? opts->gl : DISPLAYGL_MODE_ON; 183 QemuConsole *con; 184 egl_dpy *edpy; 185 int idx; 186 187 if (egl_rendernode_init(opts->u.egl_headless.rendernode, mode) < 0) { 188 error_report("egl: render node init failed"); 189 exit(1); 190 } 191 192 for (idx = 0;; idx++) { 193 con = qemu_console_lookup_by_index(idx); 194 if (!con || !qemu_console_is_graphic(con)) { 195 break; 196 } 197 198 edpy = g_new0(egl_dpy, 1); 199 edpy->dcl.con = con; 200 edpy->dcl.ops = &egl_ops; 201 edpy->gls = qemu_gl_init_shader(); 202 register_displaychangelistener(&edpy->dcl); 203 } 204 } 205 206 static QemuDisplay qemu_display_egl = { 207 .type = DISPLAY_TYPE_EGL_HEADLESS, 208 .early_init = early_egl_headless_init, 209 .init = egl_headless_init, 210 }; 211 212 static void register_egl(void) 213 { 214 qemu_display_register(&qemu_display_egl); 215 } 216 217 type_init(register_egl); 218