| /* |
| * GTK UI -- glarea opengl code. |
| * |
| * Requires 3.16+ (GtkGLArea widget). |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2 or later. |
| * See the COPYING file in the top-level directory. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/main-loop.h" |
| |
| #include "trace.h" |
| |
| #include "ui/console.h" |
| #include "ui/gtk.h" |
| #include "ui/egl-helpers.h" |
| |
| #include "sysemu/sysemu.h" |
| |
| static void gtk_gl_area_set_scanout_mode(VirtualConsole *vc, bool scanout) |
| { |
| if (vc->gfx.scanout_mode == scanout) { |
| return; |
| } |
| |
| vc->gfx.scanout_mode = scanout; |
| if (!vc->gfx.scanout_mode) { |
| egl_fb_destroy(&vc->gfx.guest_fb); |
| if (vc->gfx.surface) { |
| surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds); |
| surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds); |
| } |
| } |
| } |
| |
| /** DisplayState Callbacks (opengl version) **/ |
| |
| void gd_gl_area_draw(VirtualConsole *vc) |
| { |
| #ifdef CONFIG_GBM |
| QemuDmaBuf *dmabuf = vc->gfx.guest_fb.dmabuf; |
| #endif |
| int ww, wh, ws, y1, y2; |
| |
| if (!vc->gfx.gls) { |
| return; |
| } |
| |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| ws = gdk_window_get_scale_factor(gtk_widget_get_window(vc->gfx.drawing_area)); |
| ww = gtk_widget_get_allocated_width(vc->gfx.drawing_area) * ws; |
| wh = gtk_widget_get_allocated_height(vc->gfx.drawing_area) * ws; |
| |
| if (vc->gfx.scanout_mode) { |
| if (!vc->gfx.guest_fb.framebuffer) { |
| return; |
| } |
| |
| #ifdef CONFIG_GBM |
| if (dmabuf) { |
| if (!dmabuf->draw_submitted) { |
| return; |
| } else { |
| dmabuf->draw_submitted = false; |
| } |
| } |
| #endif |
| |
| glBindFramebuffer(GL_READ_FRAMEBUFFER, vc->gfx.guest_fb.framebuffer); |
| /* GtkGLArea sets GL_DRAW_FRAMEBUFFER for us */ |
| |
| glViewport(0, 0, ww, wh); |
| y1 = vc->gfx.y0_top ? 0 : vc->gfx.h; |
| y2 = vc->gfx.y0_top ? vc->gfx.h : 0; |
| glBlitFramebuffer(0, y1, vc->gfx.w, y2, |
| 0, 0, ww, wh, |
| GL_COLOR_BUFFER_BIT, GL_NEAREST); |
| #ifdef CONFIG_GBM |
| if (dmabuf) { |
| egl_dmabuf_create_sync(dmabuf); |
| } |
| #endif |
| glFlush(); |
| #ifdef CONFIG_GBM |
| if (dmabuf) { |
| egl_dmabuf_create_fence(dmabuf); |
| if (dmabuf->fence_fd > 0) { |
| qemu_set_fd_handler(dmabuf->fence_fd, gd_hw_gl_flushed, NULL, vc); |
| return; |
| } |
| graphic_hw_gl_block(vc->gfx.dcl.con, false); |
| } |
| #endif |
| } else { |
| if (!vc->gfx.ds) { |
| return; |
| } |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| |
| surface_gl_setup_viewport(vc->gfx.gls, vc->gfx.ds, ww, wh); |
| surface_gl_render_texture(vc->gfx.gls, vc->gfx.ds); |
| } |
| } |
| |
| void gd_gl_area_update(DisplayChangeListener *dcl, |
| int x, int y, int w, int h) |
| { |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| |
| if (!vc->gfx.gls || !vc->gfx.ds) { |
| return; |
| } |
| |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| surface_gl_update_texture(vc->gfx.gls, vc->gfx.ds, x, y, w, h); |
| vc->gfx.glupdates++; |
| } |
| |
| void gd_gl_area_refresh(DisplayChangeListener *dcl) |
| { |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| |
| gd_update_monitor_refresh_rate(vc, vc->window ? vc->window : vc->gfx.drawing_area); |
| |
| if (!vc->gfx.gls) { |
| if (!gtk_widget_get_realized(vc->gfx.drawing_area)) { |
| return; |
| } |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| vc->gfx.gls = qemu_gl_init_shader(); |
| if (vc->gfx.ds) { |
| surface_gl_create_texture(vc->gfx.gls, vc->gfx.ds); |
| } |
| } |
| |
| graphic_hw_update(dcl->con); |
| |
| if (vc->gfx.glupdates) { |
| vc->gfx.glupdates = 0; |
| gtk_gl_area_set_scanout_mode(vc, false); |
| gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area)); |
| } |
| } |
| |
| void gd_gl_area_switch(DisplayChangeListener *dcl, |
| DisplaySurface *surface) |
| { |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| bool resized = true; |
| |
| trace_gd_switch(vc->label, surface_width(surface), surface_height(surface)); |
| |
| if (vc->gfx.ds && |
| surface_width(vc->gfx.ds) == surface_width(surface) && |
| surface_height(vc->gfx.ds) == surface_height(surface)) { |
| resized = false; |
| } |
| |
| if (vc->gfx.gls) { |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| surface_gl_destroy_texture(vc->gfx.gls, vc->gfx.ds); |
| surface_gl_create_texture(vc->gfx.gls, surface); |
| } |
| vc->gfx.ds = surface; |
| |
| if (resized) { |
| gd_update_windowsize(vc); |
| } |
| } |
| |
| static int gd_cmp_gl_context_version(int major, int minor, QEMUGLParams *params) |
| { |
| if (major > params->major_ver) { |
| return 1; |
| } |
| if (major < params->major_ver) { |
| return -1; |
| } |
| if (minor > params->minor_ver) { |
| return 1; |
| } |
| if (minor < params->minor_ver) { |
| return -1; |
| } |
| return 0; |
| } |
| |
| QEMUGLContext gd_gl_area_create_context(DisplayGLCtx *dgc, |
| QEMUGLParams *params) |
| { |
| VirtualConsole *vc = container_of(dgc, VirtualConsole, gfx.dgc); |
| GdkWindow *window; |
| GdkGLContext *ctx; |
| GError *err = NULL; |
| int major, minor; |
| |
| window = gtk_widget_get_window(vc->gfx.drawing_area); |
| ctx = gdk_window_create_gl_context(window, &err); |
| if (err) { |
| g_printerr("Create gdk gl context failed: %s\n", err->message); |
| g_error_free(err); |
| return NULL; |
| } |
| gdk_gl_context_set_required_version(ctx, |
| params->major_ver, |
| params->minor_ver); |
| gdk_gl_context_realize(ctx, &err); |
| if (err) { |
| g_printerr("Realize gdk gl context failed: %s\n", err->message); |
| g_error_free(err); |
| g_clear_object(&ctx); |
| return NULL; |
| } |
| |
| gdk_gl_context_make_current(ctx); |
| gdk_gl_context_get_version(ctx, &major, &minor); |
| gdk_gl_context_clear_current(); |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| |
| if (gd_cmp_gl_context_version(major, minor, params) == -1) { |
| /* created ctx version < requested version */ |
| g_clear_object(&ctx); |
| } |
| |
| trace_gd_gl_area_create_context(ctx, params->major_ver, params->minor_ver); |
| return ctx; |
| } |
| |
| void gd_gl_area_destroy_context(DisplayGLCtx *dgc, QEMUGLContext ctx) |
| { |
| GdkGLContext *current_ctx = gdk_gl_context_get_current(); |
| |
| trace_gd_gl_area_destroy_context(ctx, current_ctx); |
| if (ctx == current_ctx) { |
| gdk_gl_context_clear_current(); |
| } |
| g_clear_object(&ctx); |
| } |
| |
| void gd_gl_area_scanout_texture(DisplayChangeListener *dcl, |
| uint32_t backing_id, |
| bool backing_y_0_top, |
| uint32_t backing_width, |
| uint32_t backing_height, |
| uint32_t x, uint32_t y, |
| uint32_t w, uint32_t h) |
| { |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| |
| vc->gfx.x = x; |
| vc->gfx.y = y; |
| vc->gfx.w = w; |
| vc->gfx.h = h; |
| vc->gfx.y0_top = backing_y_0_top; |
| |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| |
| if (backing_id == 0 || vc->gfx.w == 0 || vc->gfx.h == 0) { |
| gtk_gl_area_set_scanout_mode(vc, false); |
| return; |
| } |
| |
| gtk_gl_area_set_scanout_mode(vc, true); |
| egl_fb_setup_for_tex(&vc->gfx.guest_fb, backing_width, backing_height, |
| backing_id, false); |
| } |
| |
| void gd_gl_area_scanout_disable(DisplayChangeListener *dcl) |
| { |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| |
| gtk_gl_area_set_scanout_mode(vc, false); |
| } |
| |
| void gd_gl_area_scanout_flush(DisplayChangeListener *dcl, |
| uint32_t x, uint32_t y, uint32_t w, uint32_t h) |
| { |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| |
| if (vc->gfx.guest_fb.dmabuf && !vc->gfx.guest_fb.dmabuf->draw_submitted) { |
| graphic_hw_gl_block(vc->gfx.dcl.con, true); |
| vc->gfx.guest_fb.dmabuf->draw_submitted = true; |
| } |
| gtk_gl_area_queue_render(GTK_GL_AREA(vc->gfx.drawing_area)); |
| } |
| |
| void gd_gl_area_scanout_dmabuf(DisplayChangeListener *dcl, |
| QemuDmaBuf *dmabuf) |
| { |
| #ifdef CONFIG_GBM |
| VirtualConsole *vc = container_of(dcl, VirtualConsole, gfx.dcl); |
| |
| gtk_gl_area_make_current(GTK_GL_AREA(vc->gfx.drawing_area)); |
| egl_dmabuf_import_texture(dmabuf); |
| if (!dmabuf->texture) { |
| return; |
| } |
| |
| gd_gl_area_scanout_texture(dcl, dmabuf->texture, |
| dmabuf->y0_top, dmabuf->width, dmabuf->height, |
| 0, 0, dmabuf->width, dmabuf->height); |
| |
| if (dmabuf->allow_fences) { |
| vc->gfx.guest_fb.dmabuf = dmabuf; |
| } |
| #endif |
| } |
| |
| void gtk_gl_area_init(void) |
| { |
| display_opengl = 1; |
| } |
| |
| int gd_gl_area_make_current(DisplayGLCtx *dgc, |
| QEMUGLContext ctx) |
| { |
| gdk_gl_context_make_current(ctx); |
| return 0; |
| } |
