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gtk-gl-area.c 9.9 KB

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  1. /*
  2. * GTK UI -- glarea opengl code.
  3. *
  4. * Requires 3.16+ (GtkGLArea widget).
  5. *
  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.
  8. */
  9. #include "qemu/osdep.h"
  10. #include "qemu/main-loop.h"
  11. #include "trace.h"
  12. #include "ui/console.h"
  13. #include "ui/gtk.h"
  14. #include "ui/egl-helpers.h"
  15. #include "sysemu/sysemu.h"
  16. static void gtk_gl_area_set_scanout_mode(VirtualConsole *vc, bool scanout)
  17. {
  18. if (vc->gfx.scanout_mode == scanout) {
  19. return;
  20. }
  21. vc->gfx.scanout_mode = scanout;
  22. if (!vc->gfx.scanout_mode) {
  23. egl_fb_destroy(&vc->gfx.guest_fb);
  24. if (vc->gfx.surface) {
  25. surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
  26. surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
  27. }
  28. }
  29. }
  30. /** DisplayState Callbacks (opengl version) **/
  31. void gd_gl_area_draw(VirtualConsole *vc)
  32. {
  33. #ifdef CONFIG_GBM
  34. QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf;
  35. #endif
  36. int ww, wh, ws, y1, y2;
  37. if (!vc->gfx.gls) {
  38. return;
  39. }
  40. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  41. ws = gdk_window_get_scale_factor(gtk_widget_get_window(vc->gfx.drawing_area));
  42. ww = gtk_widget_get_allocated_width(vc->gfx.drawing_area) * ws;
  43. wh = gtk_widget_get_allocated_height(vc->gfx.drawing_area) * ws;
  44. if (vc->gfx.scanout_mode) {
  45. if (!vc->gfx.guest_fb.framebuffer) {
  46. return;
  47. }
  48. #ifdef CONFIG_GBM
  49. if (dmabuf) {
  50. if (!dmabuf->draw_submitted) {
  51. return;
  52. } else {
  53. dmabuf->draw_submitted = false;
  54. }
  55. }
  56. #endif
  57. glBindFramebuffer(GL_READ_FRAMEBUFFER, vc->gfx.guest_fb.framebuffer);
  58. /* GtkGLArea sets GL_DRAW_FRAMEBUFFER for us */
  59. glViewport(0, 0, ww, wh);
  60. y1 = vc->gfx.y0_top ? 0 : vc->gfx.h;
  61. y2 = vc->gfx.y0_top ? vc->gfx.h : 0;
  62. glBlitFramebuffer(0, y1, vc->gfx.w, y2,
  63. 0, 0, ww, wh,
  64. GL_COLOR_BUFFER_BIT, GL_NEAREST);
  65. #ifdef CONFIG_GBM
  66. if (dmabuf) {
  67. egl_dmabuf_create_sync(dmabuf);
  68. }
  69. #endif
  70. glFlush();
  71. #ifdef CONFIG_GBM
  72. if (dmabuf) {
  73. egl_dmabuf_create_fence(dmabuf);
  74. if (dmabuf->fence_fd > 0) {
  75. qemu_set_fd_handler(dmabuf->fence_fd, gd_hw_gl_flushed, NULL, vc);
  76. return;
  77. }
  78. graphic_hw_gl_block(vc->gfx.dcl.con, false);
  79. }
  80. #endif
  81. } else {
  82. if (!vc->gfx.ds) {
  83. return;
  84. }
  85. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  86. surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh);
  87. surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds);
  88. }
  89. }
  90. void gd_gl_area_update(DisplayChangeListener *dcl,
  91. int x, int y, int w, int h)
  92. {
  93. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  94. if (!vc->gfx.gls || !vc->gfx.ds) {
  95. return;
  96. }
  97. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  98. surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h);
  99. vc->gfx.glupdates++;
  100. }
  101. void gd_gl_area_refresh(DisplayChangeListener *dcl)
  102. {
  103. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  104. <<<<<<< HEAD
  105. gd_update_monitor_refresh_rate(
  106. vc, vc->window ? vc->window : vc->gfx.drawing_area);
  107. =======
  108. gd_update_monitor_refresh_rate(vc, vc->window ? vc->window : vc->gfx.drawing_area);
  109. >>>>>>> v7.1.0
  110. if (!vc->gfx.gls) {
  111. if (!gtk_widget_get_realized(vc->gfx.drawing_area)) {
  112. return;
  113. }
  114. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  115. vc->gfx.gls = qemu_gl_init_shader();
  116. if (vc->gfx.ds) {
  117. surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds);
  118. }
  119. }
  120. graphic_hw_update(dcl->con);
  121. if (vc->gfx.glupdates) {
  122. vc->gfx.glupdates = 0;
  123. gtk_gl_area_set_scanout_mode(vc, false);
  124. gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
  125. }
  126. }
  127. void gd_gl_area_switch(DisplayChangeListener *dcl,
  128. DisplaySurface *surface)
  129. {
  130. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  131. bool resized = true;
  132. trace_gd_switch(vc->label, surface_width(surface), surface_height(surface));
  133. if (vc->gfx.ds &&
  134. surface_width(vc->gfx.ds) == surface_width(surface) &&
  135. surface_height(vc->gfx.ds) == surface_height(surface)) {
  136. resized = false;
  137. }
  138. if (vc->gfx.gls) {
  139. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  140. surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds);
  141. surface_gl_create_texture(vc->gfx.gls, surface);
  142. }
  143. vc->gfx.ds = surface;
  144. if (resized) {
  145. gd_update_windowsize(vc);
  146. }
  147. }
  148. static int gd_cmp_gl_context_version(int major, int minor, QEMUGLParams *params)
  149. {
  150. if (major > params->major_ver) {
  151. return 1;
  152. }
  153. if (major < params->major_ver) {
  154. return -1;
  155. }
  156. if (minor > params->minor_ver) {
  157. return 1;
  158. }
  159. if (minor < params->minor_ver) {
  160. return -1;
  161. }
  162. return 0;
  163. }
  164. QEMUGLContext gd_gl_area_create_context(DisplayGLCtx *dgc,
  165. QEMUGLParams *params)
  166. {
  167. VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc);
  168. GdkWindow *window;
  169. GdkGLContext *ctx;
  170. GError *err = NULL;
  171. int major, minor;
  172. window = gtk_widget_get_window(vc->gfx.drawing_area);
  173. ctx = gdk_window_create_gl_context(window, &err);
  174. if (err) {
  175. g_printerr("Create gdk gl context failed: %s\n", err->message);
  176. g_error_free(err);
  177. return NULL;
  178. }
  179. gdk_gl_context_set_required_version(ctx,
  180. params->major_ver,
  181. params->minor_ver);
  182. gdk_gl_context_realize(ctx, &err);
  183. if (err) {
  184. g_printerr("Realize gdk gl context failed: %s\n", err->message);
  185. g_error_free(err);
  186. g_clear_object(&ctx);
  187. return NULL;
  188. }
  189. gdk_gl_context_make_current(ctx);
  190. gdk_gl_context_get_version(ctx, &major, &minor);
  191. gdk_gl_context_clear_current();
  192. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  193. if (gd_cmp_gl_context_version(major, minor, params) == -1) {
  194. /* created ctx version < requested version */
  195. g_clear_object(&ctx);
  196. }
  197. trace_gd_gl_area_create_context(ctx, params->major_ver, params->minor_ver);
  198. return ctx;
  199. }
  200. void gd_gl_area_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx)
  201. {
  202. GdkGLContext *current_ctx = gdk_gl_context_get_current();
  203. trace_gd_gl_area_destroy_context(ctx, current_ctx);
  204. if (ctx == current_ctx) {
  205. gdk_gl_context_clear_current();
  206. }
  207. g_clear_object(&ctx);
  208. }
  209. static void gd_gl_area_scanout_borrowed_texture(VirtualConsole *vc,
  210. uint32_t backing_id,
  211. bool backing_y_0_top,
  212. uint32_t backing_width,
  213. uint32_t backing_height,
  214. uint32_t x, uint32_t y,
  215. uint32_t w, uint32_t h)
  216. {
  217. vc->gfx.x = x;
  218. vc->gfx.y = y;
  219. vc->gfx.w = w;
  220. vc->gfx.h = h;
  221. vc->gfx.y0_top = backing_y_0_top;
  222. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  223. if (vc->gfx.w == 0 || vc->gfx.h == 0) {
  224. gtk_gl_area_set_scanout_mode(vc, false);
  225. return;
  226. }
  227. gtk_gl_area_set_scanout_mode(vc, true);
  228. egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height,
  229. backing_id, false);
  230. }
  231. void gd_gl_area_scanout_texture(DisplayChangeListener *dcl,
  232. uint32_t backing_id,
  233. DisplayGLTextureBorrower backing_borrow,
  234. uint32_t x, uint32_t y,
  235. uint32_t w, uint32_t h)
  236. {
  237. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  238. bool backing_y_0_top;
  239. uint32_t backing_width;
  240. uint32_t backing_height;
  241. GLuint backing_texture = backing_borrow(backing_id, &backing_y_0_top,
  242. &backing_width, &backing_height);
  243. gd_gl_area_scanout_borrowed_texture(vc, backing_texture,
  244. backing_y_0_top,
  245. backing_width, backing_height,
  246. x, y, w, h);
  247. }
  248. void gd_gl_area_scanout_disable(DisplayChangeListener *dcl)
  249. {
  250. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  251. gtk_gl_area_set_scanout_mode(vc, false);
  252. }
  253. void gd_gl_area_scanout_flush(DisplayChangeListener *dcl,
  254. uint32_t x, uint32_t y, uint32_t w, uint32_t h)
  255. {
  256. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  257. if (vc->gfx.guest_fb.dmabuf && !vc->gfx.guest_fb.dmabuf->draw_submitted) {
  258. graphic_hw_gl_block(vc->gfx.dcl.con, true);
  259. vc->gfx.guest_fb.dmabuf->draw_submitted = true;
  260. }
  261. gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area));
  262. }
  263. void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl,
  264. QemuDmaBuf *dmabuf)
  265. {
  266. #ifdef CONFIG_GBM
  267. VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl);
  268. gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area));
  269. egl_dmabuf_import_texture(dmabuf);
  270. if (!dmabuf->texture) {
  271. return;
  272. }
  273. gd_gl_area_scanout_borrowed_texture(vc, dmabuf->texture,
  274. false, dmabuf->width, dmabuf->height,
  275. 0, 0, dmabuf->width, dmabuf->height);
  276. if (dmabuf->allow_fences) {
  277. vc->gfx.guest_fb.dmabuf = dmabuf;
  278. }
  279. #endif
  280. }
  281. void gtk_gl_area_init(void)
  282. {
  283. display_opengl = 1;
  284. }
  285. int gd_gl_area_make_current(DisplayGLCtx *dgc,
  286. QEMUGLContext ctx)
  287. {
  288. gdk_gl_context_make_current(ctx);
  289. return 0;
  290. }