From 78c13ead163e76b1c0ff344eefeadcaeffb3890e Mon Sep 17 00:00:00 2001 From: emersion Date: Sat, 20 Jan 2018 18:10:11 +0100 Subject: backend/x11: force rendering the whole output --- backend/x11/backend.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'backend/x11/backend.c') diff --git a/backend/x11/backend.c b/backend/x11/backend.c index e1622d06..a2547f8d 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -395,6 +395,12 @@ static void output_swap_buffers(struct wlr_output *wlr_output) { if (!eglSwapBuffers(x11->egl.display, output->surf)) { wlr_log(L_ERROR, "eglSwapBuffers failed: %s", egl_error()); } + + // Damage the whole output + // TODO: use the buffer age extension + pixman_region32_union_rect(&wlr_output->damage, &wlr_output->damage, + 0, 0, wlr_output->width, wlr_output->height); + wlr_output_update_needs_swap(wlr_output); } static struct wlr_output_impl output_impl = { -- cgit v1.2.3 From 0365b587f03411d6a55017e111a991d466decc35 Mon Sep 17 00:00:00 2001 From: emersion Date: Sun, 21 Jan 2018 00:06:35 +0100 Subject: output: add damage tracking via buffer age --- backend/drm/drm.c | 13 ++++++---- backend/drm/renderer.c | 17 +++++++------ backend/headless/output.c | 13 ++++------ backend/wayland/output.c | 23 ++++++++++------- backend/x11/backend.c | 15 ++++------- examples/multi-pointer.c | 2 +- examples/output-layout.c | 2 +- examples/pointer.c | 2 +- examples/rotation.c | 2 +- examples/simple.c | 2 +- examples/tablet.c | 2 +- examples/touch.c | 2 +- include/backend/drm/renderer.h | 2 +- include/rootston/output.h | 7 +++++- include/wlr/interfaces/wlr_output.h | 4 +-- include/wlr/render/egl.h | 14 +++++++++-- include/wlr/types/wlr_output.h | 14 ++++++++--- render/egl.c | 50 +++++++++++++++++++++++++++++++------ rootston/output.c | 35 ++++++++++++++++++++------ types/wlr_output.c | 22 ++++++++-------- types/wlr_screenshooter.c | 1 - 21 files changed, 163 insertions(+), 81 deletions(-) (limited to 'backend/x11/backend.c') diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 72acbeab..72fc1441 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -183,12 +183,13 @@ void wlr_drm_resources_free(struct wlr_drm_backend *drm) { free(drm->planes); } -static void wlr_drm_connector_make_current(struct wlr_output *output) { +static bool wlr_drm_connector_make_current(struct wlr_output *output, + int *buffer_age) { struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output; - wlr_drm_surface_make_current(&conn->crtc->primary->surf); + return wlr_drm_surface_make_current(&conn->crtc->primary->surf, buffer_age); } -static void wlr_drm_connector_swap_buffers(struct wlr_output *output) { +static bool wlr_drm_connector_swap_buffers(struct wlr_output *output) { struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output; struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend; @@ -203,7 +204,7 @@ static void wlr_drm_connector_swap_buffers(struct wlr_output *output) { if (conn->pageflip_pending) { wlr_log(L_ERROR, "Skipping pageflip"); - return; + return true; } if (drm->iface->crtc_pageflip(drm, conn, crtc, fb_id, NULL)) { @@ -212,6 +213,8 @@ static void wlr_drm_connector_swap_buffers(struct wlr_output *output) { wl_event_source_timer_update(conn->retry_pageflip, 1000000.0f / conn->output.current_mode->refresh); } + + return true; } static void wlr_drm_connector_set_gamma(struct wlr_output *output, @@ -595,7 +598,7 @@ static bool wlr_drm_connector_set_cursor(struct wlr_output *output, return false; } - wlr_drm_surface_make_current(&plane->surf); + wlr_drm_surface_make_current(&plane->surf, NULL); wlr_texture_upload_pixels(plane->wlr_tex, WL_SHM_FORMAT_ARGB8888, stride, width, height, buf); diff --git a/backend/drm/renderer.c b/backend/drm/renderer.c index 00182c59..e2891057 100644 --- a/backend/drm/renderer.c +++ b/backend/drm/renderer.c @@ -113,9 +113,9 @@ void wlr_drm_surface_finish(struct wlr_drm_surface *surf) { memset(surf, 0, sizeof(*surf)); } -void wlr_drm_surface_make_current(struct wlr_drm_surface *surf) { - eglMakeCurrent(surf->renderer->egl.display, surf->egl, surf->egl, - surf->renderer->egl.context); +bool wlr_drm_surface_make_current(struct wlr_drm_surface *surf, + int *buffer_damage) { + return wlr_egl_make_current(&surf->renderer->egl, surf->egl, buffer_damage); } struct gbm_bo *wlr_drm_surface_swap_buffers(struct wlr_drm_surface *surf) { @@ -123,7 +123,9 @@ struct gbm_bo *wlr_drm_surface_swap_buffers(struct wlr_drm_surface *surf) { gbm_surface_release_buffer(surf->gbm, surf->front); } - eglSwapBuffers(surf->renderer->egl.display, surf->egl); + if (!eglSwapBuffers(surf->renderer->egl.display, surf->egl)) { + wlr_log(L_ERROR, "eglSwapBuffers failed"); + } surf->front = surf->back; surf->back = gbm_surface_lock_front_buffer(surf->gbm); @@ -135,7 +137,7 @@ struct gbm_bo *wlr_drm_surface_get_front(struct wlr_drm_surface *surf) { return surf->front; } - wlr_drm_surface_make_current(surf); + wlr_drm_surface_make_current(surf, NULL); glViewport(0, 0, surf->width, surf->height); glClearColor(0.0, 0.0, 0.0, 1.0); glClear(GL_COLOR_BUFFER_BIT); @@ -207,8 +209,9 @@ static struct wlr_texture *get_tex_for_bo(struct wlr_drm_renderer *renderer, str return tex->tex; } -struct gbm_bo *wlr_drm_surface_mgpu_copy(struct wlr_drm_surface *dest, struct gbm_bo *src) { - wlr_drm_surface_make_current(dest); +struct gbm_bo *wlr_drm_surface_mgpu_copy(struct wlr_drm_surface *dest, + struct gbm_bo *src) { + wlr_drm_surface_make_current(dest, NULL); struct wlr_texture *tex = get_tex_for_bo(dest->renderer, src); diff --git a/backend/headless/output.c b/backend/headless/output.c index 9fc92e88..a9a538ed 100644 --- a/backend/headless/output.c +++ b/backend/headless/output.c @@ -48,18 +48,15 @@ static void output_transform(struct wlr_output *wlr_output, output->wlr_output.transform = transform; } -static void output_make_current(struct wlr_output *wlr_output) { +static bool output_make_current(struct wlr_output *wlr_output, int *buffer_age) { struct wlr_headless_output *output = (struct wlr_headless_output *)wlr_output; - if (!eglMakeCurrent(output->backend->egl.display, - output->egl_surface, output->egl_surface, - output->backend->egl.context)) { - wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error()); - } + return wlr_egl_make_current(&output->backend->egl, output->egl_surface, + buffer_age); } -static void output_swap_buffers(struct wlr_output *wlr_output) { - // No-op +static bool output_swap_buffers(struct wlr_output *wlr_output) { + return true; // No-op } static void output_destroy(struct wlr_output *wlr_output) { diff --git a/backend/wayland/output.c b/backend/wayland/output.c index 7e299ecc..5de18d41 100644 --- a/backend/wayland/output.c +++ b/backend/wayland/output.c @@ -38,22 +38,27 @@ static bool wlr_wl_output_set_custom_mode(struct wlr_output *_output, return true; } -static void wlr_wl_output_make_current(struct wlr_output *_output) { - struct wlr_wl_backend_output *output = (struct wlr_wl_backend_output *)_output; - if (!eglMakeCurrent(output->backend->egl.display, - output->egl_surface, output->egl_surface, - output->backend->egl.context)) { - wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error()); - } +static bool wlr_wl_output_make_current(struct wlr_output *wlr_output, + int *buffer_age) { + struct wlr_wl_backend_output *output = + (struct wlr_wl_backend_output *)wlr_output; + return wlr_egl_make_current(&output->backend->egl, output->egl_surface, + buffer_age); } -static void wlr_wl_output_swap_buffers(struct wlr_output *_output) { - struct wlr_wl_backend_output *output = (struct wlr_wl_backend_output *)_output; +static bool wlr_wl_output_swap_buffers(struct wlr_output *wlr_output) { + struct wlr_wl_backend_output *output = + (struct wlr_wl_backend_output *)wlr_output; + output->frame_callback = wl_surface_frame(output->surface); wl_callback_add_listener(output->frame_callback, &frame_listener, output); + if (!eglSwapBuffers(output->backend->egl.display, output->egl_surface)) { wlr_log(L_ERROR, "eglSwapBuffers failed: %s", egl_error()); + return false; } + + return true; } static void wlr_wl_output_transform(struct wlr_output *_output, diff --git a/backend/x11/backend.c b/backend/x11/backend.c index a2547f8d..b9ea7d0f 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -379,28 +379,23 @@ static void output_destroy(struct wlr_output *wlr_output) { // output has been allocated on the stack, do not free it } -static void output_make_current(struct wlr_output *wlr_output) { +static bool output_make_current(struct wlr_output *wlr_output, int *buffer_age) { struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output; struct wlr_x11_backend *x11 = output->x11; - if (!eglMakeCurrent(x11->egl.display, output->surf, output->surf, x11->egl.context)) { - wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error()); - } + return wlr_egl_make_current(&x11->egl, output->surf, buffer_age); } -static void output_swap_buffers(struct wlr_output *wlr_output) { +static bool output_swap_buffers(struct wlr_output *wlr_output) { struct wlr_x11_output *output = (struct wlr_x11_output *)wlr_output; struct wlr_x11_backend *x11 = output->x11; if (!eglSwapBuffers(x11->egl.display, output->surf)) { wlr_log(L_ERROR, "eglSwapBuffers failed: %s", egl_error()); + return false; } - // Damage the whole output - // TODO: use the buffer age extension - pixman_region32_union_rect(&wlr_output->damage, &wlr_output->damage, - 0, 0, wlr_output->width, wlr_output->height); - wlr_output_update_needs_swap(wlr_output); + return true; } static struct wlr_output_impl output_impl = { diff --git a/examples/multi-pointer.c b/examples/multi-pointer.c index d5297aef..d3d425f2 100644 --- a/examples/multi-pointer.c +++ b/examples/multi-pointer.c @@ -56,7 +56,7 @@ static void handle_output_frame(struct output_state *output, struct sample_state *sample = state->data; struct wlr_output *wlr_output = output->output; - wlr_output_make_current(wlr_output); + wlr_output_make_current(wlr_output, NULL); glClearColor(sample->clear_color[0], sample->clear_color[1], sample->clear_color[2], sample->clear_color[3]); diff --git a/examples/output-layout.c b/examples/output-layout.c index 825e97d1..b97d3723 100644 --- a/examples/output-layout.c +++ b/examples/output-layout.c @@ -100,7 +100,7 @@ static void handle_output_frame(struct output_state *output, struct sample_state *sample = state->data; struct wlr_output *wlr_output = output->output; - wlr_output_make_current(wlr_output); + wlr_output_make_current(wlr_output, NULL); wlr_renderer_begin(sample->renderer, wlr_output); animate_cat(sample, output->output); diff --git a/examples/pointer.c b/examples/pointer.c index 8b0993e5..0dbd02d2 100644 --- a/examples/pointer.c +++ b/examples/pointer.c @@ -85,7 +85,7 @@ static void handle_output_frame(struct output_state *output, struct sample_state *sample = state->data; struct wlr_output *wlr_output = output->output; - wlr_output_make_current(wlr_output); + wlr_output_make_current(wlr_output, NULL); glClearColor(sample->clear_color[0], sample->clear_color[1], sample->clear_color[2], sample->clear_color[3]); diff --git a/examples/rotation.c b/examples/rotation.c index 6fa06dcc..65e436f6 100644 --- a/examples/rotation.c +++ b/examples/rotation.c @@ -42,7 +42,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts int32_t width, height; wlr_output_effective_resolution(wlr_output, &width, &height); - wlr_output_make_current(wlr_output); + wlr_output_make_current(wlr_output, NULL); wlr_renderer_begin(sample->renderer, wlr_output); float matrix[16]; diff --git a/examples/simple.c b/examples/simple.c index f788618d..90808b0f 100644 --- a/examples/simple.c +++ b/examples/simple.c @@ -35,7 +35,7 @@ void handle_output_frame(struct output_state *output, struct timespec *ts) { sample->dec = inc; } - wlr_output_make_current(output->output); + wlr_output_make_current(output->output, NULL); glClearColor(sample->color[0], sample->color[1], sample->color[2], 1.0); glClear(GL_COLOR_BUFFER_BIT); diff --git a/examples/tablet.c b/examples/tablet.c index 5498c9ff..35326664 100644 --- a/examples/tablet.c +++ b/examples/tablet.c @@ -42,7 +42,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts int32_t width, height; wlr_output_effective_resolution(wlr_output, &width, &height); - wlr_output_make_current(wlr_output); + wlr_output_make_current(wlr_output, NULL); wlr_renderer_begin(sample->renderer, wlr_output); float matrix[16], view[16]; diff --git a/examples/touch.c b/examples/touch.c index 5c778743..74642b96 100644 --- a/examples/touch.c +++ b/examples/touch.c @@ -41,7 +41,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts int32_t width, height; wlr_output_effective_resolution(wlr_output, &width, &height); - wlr_output_make_current(wlr_output); + wlr_output_make_current(wlr_output, NULL); wlr_renderer_begin(sample->renderer, wlr_output); float matrix[16]; diff --git a/include/backend/drm/renderer.h b/include/backend/drm/renderer.h index 45127cd0..a3f19fc3 100644 --- a/include/backend/drm/renderer.h +++ b/include/backend/drm/renderer.h @@ -45,7 +45,7 @@ bool wlr_drm_plane_surfaces_init(struct wlr_drm_plane *plane, struct wlr_drm_bac int32_t width, uint32_t height, uint32_t format); void wlr_drm_surface_finish(struct wlr_drm_surface *surf); -void wlr_drm_surface_make_current(struct wlr_drm_surface *surf); +bool wlr_drm_surface_make_current(struct wlr_drm_surface *surf, int *buffer_age); struct gbm_bo *wlr_drm_surface_swap_buffers(struct wlr_drm_surface *surf); struct gbm_bo *wlr_drm_surface_get_front(struct wlr_drm_surface *surf); void wlr_drm_surface_post(struct wlr_drm_surface *surf); diff --git a/include/rootston/output.h b/include/rootston/output.h index e8241de7..c0022d1a 100644 --- a/include/rootston/output.h +++ b/include/rootston/output.h @@ -5,6 +5,8 @@ #include #include +#define ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN 2 + struct roots_desktop; struct roots_output { @@ -15,9 +17,12 @@ struct roots_output { struct roots_view *fullscreen_view; struct timespec last_frame; - pixman_region32_t damage, previous_damage; + pixman_region32_t damage; bool frame_pending; + pixman_region32_t previous_damage[ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN]; + size_t previous_damage_idx; + struct wl_listener frame; struct wl_listener mode; struct wl_listener needs_swap; diff --git a/include/wlr/interfaces/wlr_output.h b/include/wlr/interfaces/wlr_output.h index 56404ec7..f2b65066 100644 --- a/include/wlr/interfaces/wlr_output.h +++ b/include/wlr/interfaces/wlr_output.h @@ -18,8 +18,8 @@ struct wlr_output_impl { int32_t hotspot_x, int32_t hotspot_y, bool update_pixels); bool (*move_cursor)(struct wlr_output *output, int x, int y); void (*destroy)(struct wlr_output *output); - void (*make_current)(struct wlr_output *output); - void (*swap_buffers)(struct wlr_output *output); + bool (*make_current)(struct wlr_output *output, int *buffer_age); + bool (*swap_buffers)(struct wlr_output *output); void (*set_gamma)(struct wlr_output *output, uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b); uint32_t (*get_gamma_size)(struct wlr_output *output); diff --git a/include/wlr/render/egl.h b/include/wlr/render/egl.h index bdb8d286..c292a6f8 100644 --- a/include/wlr/render/egl.h +++ b/include/wlr/render/egl.h @@ -11,8 +11,12 @@ struct wlr_egl { EGLConfig config; EGLContext context; - const char *egl_exts; - const char *gl_exts; + const char *egl_exts_str; + const char *gl_exts_str; + + struct { + bool buffer_age; + } egl_exts; struct wl_display *wl_display; }; @@ -65,4 +69,10 @@ bool wlr_egl_destroy_image(struct wlr_egl *egl, EGLImageKHR image); */ const char *egl_error(void); +bool wlr_egl_make_current(struct wlr_egl *egl, EGLSurface surface, + int *buffer_age); + +// TODO: remove +int wlr_egl_get_buffer_age(struct wlr_egl *egl, EGLSurface surface); + #endif diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h index 33d27501..3267a608 100644 --- a/include/wlr/types/wlr_output.h +++ b/include/wlr/types/wlr_output.h @@ -33,6 +33,8 @@ struct wlr_output_cursor { struct wl_listener surface_destroy; }; +#define WLR_OUTPUT_PREVIOUS_DAMAGE_COUNT 2 + struct wlr_output_impl; struct wlr_output { @@ -55,7 +57,7 @@ struct wlr_output { enum wl_output_transform transform; bool needs_swap; - pixman_region32_t damage, previous_damage; + pixman_region32_t damage; float transform_matrix[16]; // Note: some backends may have zero modes @@ -104,13 +106,19 @@ void wlr_output_set_scale(struct wlr_output *output, float scale); void wlr_output_destroy(struct wlr_output *output); void wlr_output_effective_resolution(struct wlr_output *output, int *width, int *height); -void wlr_output_make_current(struct wlr_output *output); +/** + * Makes the output GL context current. + * + * `buffer_age` is set to the drawing buffer age in number of frames or -1 if + * unknown. + */ +bool wlr_output_make_current(struct wlr_output *output, int *buffer_age); /** * Swaps the output buffers. If the time of the frame isn't known, set `when` to * NULL. If the compositor doesn't support damage tracking, set `damage` to * NULL. */ -void wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, +bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, pixman_region32_t *damage); void wlr_output_set_gamma(struct wlr_output *output, uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b); diff --git a/render/egl.c b/render/egl.c index fe20973c..9ac0b307 100644 --- a/render/egl.c +++ b/render/egl.c @@ -127,18 +127,23 @@ bool wlr_egl_init(struct wlr_egl *egl, EGLenum platform, void *remote_display, } eglMakeCurrent(egl->display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl->context); - egl->egl_exts = eglQueryString(egl->display, EGL_EXTENSIONS); - if (strstr(egl->egl_exts, "EGL_WL_bind_wayland_display") == NULL || - strstr(egl->egl_exts, "EGL_KHR_image_base") == NULL) { + egl->egl_exts_str = eglQueryString(egl->display, EGL_EXTENSIONS); + egl->gl_exts_str = (const char*) glGetString(GL_EXTENSIONS); + + wlr_log(L_INFO, "Using EGL %d.%d", (int)major, (int)minor); + wlr_log(L_INFO, "Supported EGL extensions: %s", egl->egl_exts_str); + wlr_log(L_INFO, "Using %s", glGetString(GL_VERSION)); + wlr_log(L_INFO, "Supported OpenGL ES extensions: %s", egl->gl_exts_str); + + if (strstr(egl->egl_exts_str, "EGL_WL_bind_wayland_display") == NULL || + strstr(egl->egl_exts_str, "EGL_KHR_image_base") == NULL) { wlr_log(L_ERROR, "Required egl extensions not supported"); goto error; } - egl->gl_exts = (const char*) glGetString(GL_EXTENSIONS); - wlr_log(L_INFO, "Using EGL %d.%d", (int)major, (int)minor); - wlr_log(L_INFO, "Supported EGL extensions: %s", egl->egl_exts); - wlr_log(L_INFO, "Using %s", glGetString(GL_VERSION)); - wlr_log(L_INFO, "Supported OpenGL ES extensions: %s", egl->gl_exts); + egl->egl_exts.buffer_age = + strstr(egl->egl_exts_str, "EGL_EXT_buffer_age") != NULL; + return true; error: @@ -208,3 +213,32 @@ EGLSurface wlr_egl_create_surface(struct wlr_egl *egl, void *window) { } return surf; } + +int wlr_egl_get_buffer_age(struct wlr_egl *egl, EGLSurface surface) { + if (!egl->egl_exts.buffer_age) { + return -1; + } + + EGLint buffer_age; + EGLBoolean ok = eglQuerySurface(egl->display, surface, + EGL_BUFFER_AGE_EXT, &buffer_age); + if (!ok) { + wlr_log(L_ERROR, "Failed to get EGL surface buffer age: %s", egl_error()); + return -1; + } + + return buffer_age; +} + +bool wlr_egl_make_current(struct wlr_egl *egl, EGLSurface surface, + int *buffer_age) { + if (!eglMakeCurrent(egl->display, surface, surface, egl->context)) { + wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error()); + return false; + } + + if (buffer_age != NULL) { + *buffer_age = wlr_egl_get_buffer_age(egl, surface); + } + return true; +} diff --git a/rootston/output.c b/rootston/output.c index 7f539347..13e78082 100644 --- a/rootston/output.c +++ b/rootston/output.c @@ -294,11 +294,26 @@ static void render_output(struct roots_output *output) { wlr_output_set_fullscreen_surface(wlr_output, NULL); } + int buffer_age = -1; + wlr_output_make_current(wlr_output, &buffer_age); + pixman_region32_t damage; pixman_region32_init(&damage); - pixman_region32_union(&damage, &output->damage, &output->previous_damage); - pixman_region32_intersect_rect(&damage, &damage, 0, 0, wlr_output->width, - wlr_output->height); + if (buffer_age <= 0 || buffer_age - 1 > ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN) { + // Buffer new or too old, damage the whole output + pixman_region32_union_rect(&damage, &damage, 0, 0, + wlr_output->width, wlr_output->height); + } else { + pixman_region32_copy(&damage, &output->damage); + + size_t idx = output->previous_damage_idx; + for (int i = 0; i < buffer_age - 1; i++) { + int j = (idx + i) % ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN; + pixman_region32_union(&damage, &damage, &output->previous_damage[j]); + } + } + pixman_region32_intersect_rect(&damage, &damage, 0, 0, + wlr_output->width, wlr_output->height); if (!pixman_region32_not_empty(&damage) && !wlr_output->needs_swap) { // Output doesn't need swap and isn't damaged, skip rendering completely @@ -308,7 +323,6 @@ static void render_output(struct roots_output *output) { wlr_log(L_DEBUG, "render"); - wlr_output_make_current(wlr_output); wlr_renderer_begin(server->renderer, wlr_output); glEnable(GL_SCISSOR_TEST); @@ -384,7 +398,10 @@ renderer_end: wlr_renderer_end(server->renderer); wlr_output_swap_buffers(wlr_output, &now, &damage); output->frame_pending = true; - pixman_region32_copy(&output->previous_damage, &output->damage); + output->previous_damage_idx += ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN - 1; + output->previous_damage_idx %= ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN; + pixman_region32_copy(&output->previous_damage[output->previous_damage_idx], + &output->damage); pixman_region32_clear(&output->damage); output->last_frame = desktop->last_frame = now; @@ -551,7 +568,9 @@ void output_add_notify(struct wl_listener *listener, void *data) { output->wlr_output = wlr_output; wl_list_insert(&desktop->outputs, &output->link); pixman_region32_init(&output->damage); - pixman_region32_init(&output->previous_damage); + for (size_t i = 0; i < ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN; ++i) { + pixman_region32_init(&output->previous_damage[i]); + } output->frame.notify = output_handle_frame; wl_signal_add(&wlr_output->events.frame, &output->frame); @@ -610,7 +629,9 @@ void output_remove_notify(struct wl_listener *listener, void *data) { // sample->compositor); pixman_region32_fini(&output->damage); - pixman_region32_fini(&output->previous_damage); + for (size_t i = 0; i < ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN; ++i) { + pixman_region32_fini(&output->previous_damage[i]); + } wl_list_remove(&output->link); wl_list_remove(&output->frame.link); wl_list_remove(&output->mode.link); diff --git a/types/wlr_output.c b/types/wlr_output.c index 4dd2ecc7..83b4166d 100644 --- a/types/wlr_output.c +++ b/types/wlr_output.c @@ -281,7 +281,6 @@ void wlr_output_init(struct wlr_output *output, struct wlr_backend *backend, wl_signal_init(&output->events.transform); wl_signal_init(&output->events.destroy); pixman_region32_init(&output->damage); - pixman_region32_init(&output->previous_damage); output->display_destroy.notify = handle_display_destroy; wl_display_add_destroy_listener(display, &output->display_destroy); @@ -310,7 +309,6 @@ void wlr_output_destroy(struct wlr_output *output) { } pixman_region32_fini(&output->damage); - pixman_region32_fini(&output->previous_damage); if (output->impl && output->impl->destroy) { output->impl->destroy(output); @@ -332,8 +330,8 @@ void wlr_output_effective_resolution(struct wlr_output *output, *height /= output->scale; } -void wlr_output_make_current(struct wlr_output *output) { - output->impl->make_current(output); +bool wlr_output_make_current(struct wlr_output *output, int *buffer_age) { + return output->impl->make_current(output, buffer_age); } static void output_fullscreen_surface_get_box(struct wlr_output *output, @@ -466,17 +464,17 @@ surface_damage_finish: pixman_region32_fini(&surface_damage); } -void wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, +bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, pixman_region32_t *damage) { wl_signal_emit(&output->events.swap_buffers, damage); pixman_region32_t *render_damage = damage; if (damage == NULL) { + // Damage tracking not supported, repaint the whole output pixman_region32_t output_damage; pixman_region32_init(&output_damage); - pixman_region32_copy(&output_damage, &output->damage); - pixman_region32_union(&output_damage, &output_damage, - &output->previous_damage); + pixman_region32_union_rect(&output_damage, &output_damage, + 0, 0, output->width, output->height); render_damage = &output_damage; } @@ -503,14 +501,18 @@ void wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, } // TODO: provide `damage` (not `render_damage`) to backend - output->impl->swap_buffers(output); + if (!output->impl->swap_buffers(output)) { + return false; + } + output->needs_swap = false; - pixman_region32_copy(&output->previous_damage, &output->damage); pixman_region32_clear(&output->damage); if (damage == NULL) { pixman_region32_fini(render_damage); } + + return true; } void wlr_output_set_gamma(struct wlr_output *output, diff --git a/types/wlr_screenshooter.c b/types/wlr_screenshooter.c index 4d591c45..e24b85f1 100644 --- a/types/wlr_screenshooter.c +++ b/types/wlr_screenshooter.c @@ -47,7 +47,6 @@ static void output_frame_notify(struct wl_listener *listener, void *_data) { struct wlr_renderer *renderer = state->screenshot->screenshooter->renderer; struct wlr_output *output = state->screenshot->output; - wlr_output_make_current(output); wlr_renderer_read_pixels(renderer, 0, 0, output->width, output->height, state->pixels); -- cgit v1.2.3 From 8d58ed502b6022e6a5e99bca98f6c45cc6deba0a Mon Sep 17 00:00:00 2001 From: emersion Date: Fri, 26 Jan 2018 22:39:23 +0100 Subject: output: add wlr_output_schedule_frame --- backend/drm/drm.c | 2 +- backend/headless/output.c | 2 +- backend/wayland/output.c | 8 ++++---- backend/x11/backend.c | 4 ++-- include/rootston/output.h | 1 - include/wlr/interfaces/wlr_output.h | 1 + include/wlr/types/wlr_output.h | 6 ++++++ rootston/output.c | 26 ++++---------------------- types/wlr_output.c | 22 ++++++++++++++++++++++ 9 files changed, 41 insertions(+), 31 deletions(-) (limited to 'backend/x11/backend.c') diff --git a/backend/drm/drm.c b/backend/drm/drm.c index 5ab51e82..c3ff0d55 100644 --- a/backend/drm/drm.c +++ b/backend/drm/drm.c @@ -881,7 +881,7 @@ static void page_flip_handler(int fd, unsigned seq, } if (drm->session->active) { - wl_signal_emit(&conn->output.events.frame, &conn->output); + wlr_output_send_frame(&conn->output); } } diff --git a/backend/headless/output.c b/backend/headless/output.c index a9a538ed..46f9d212 100644 --- a/backend/headless/output.c +++ b/backend/headless/output.c @@ -85,7 +85,7 @@ bool wlr_output_is_headless(struct wlr_output *wlr_output) { static int signal_frame(void *data) { struct wlr_headless_output *output = data; - wl_signal_emit(&output->wlr_output.events.frame, &output->wlr_output); + wlr_output_send_frame(&output->wlr_output); wl_event_source_timer_update(output->frame_timer, output->frame_delay); return 0; } diff --git a/backend/wayland/output.c b/backend/wayland/output.c index 5de18d41..4fec1955 100644 --- a/backend/wayland/output.c +++ b/backend/wayland/output.c @@ -17,11 +17,11 @@ int os_create_anonymous_file(off_t size); static struct wl_callback_listener frame_listener; -static void surface_frame_callback(void *data, struct wl_callback *cb, uint32_t time) { +static void surface_frame_callback(void *data, struct wl_callback *cb, + uint32_t time) { struct wlr_wl_backend_output *output = data; - struct wlr_output *wlr_output = (struct wlr_output *)output; - assert(wlr_output); - wl_signal_emit(&wlr_output->events.frame, wlr_output); + assert(output); + wlr_output_send_frame(&output->wlr_output); wl_callback_destroy(cb); output->frame_callback = NULL; } diff --git a/backend/x11/backend.c b/backend/x11/backend.c index b9ea7d0f..ae7c13be 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -44,7 +44,7 @@ static bool handle_x11_event(struct wlr_x11_backend *x11, xcb_generic_event_t *e switch (event->response_type) { case XCB_EXPOSE: { - wl_signal_emit(&output->wlr_output.events.frame, output); + wlr_output_send_frame(&output->wlr_output); break; } case XCB_KEY_PRESS: @@ -174,7 +174,7 @@ static int x11_event(int fd, uint32_t mask, void *data) { static int signal_frame(void *data) { struct wlr_x11_backend *x11 = data; - wl_signal_emit(&x11->output.wlr_output.events.frame, &x11->output); + wlr_output_send_frame(&x11->output.wlr_output); wl_event_source_timer_update(x11->frame_timer, 16); return 0; } diff --git a/include/rootston/output.h b/include/rootston/output.h index 11f53d83..a9f9bc2b 100644 --- a/include/rootston/output.h +++ b/include/rootston/output.h @@ -23,7 +23,6 @@ struct roots_output { struct timespec last_frame; pixman_region32_t damage; // in ouput-local coordinates - bool frame_pending; // circular queue for previous damage pixman_region32_t previous_damage[ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN]; diff --git a/include/wlr/interfaces/wlr_output.h b/include/wlr/interfaces/wlr_output.h index f2b65066..652be45e 100644 --- a/include/wlr/interfaces/wlr_output.h +++ b/include/wlr/interfaces/wlr_output.h @@ -33,5 +33,6 @@ void wlr_output_update_custom_mode(struct wlr_output *output, int32_t width, int32_t height, int32_t refresh); void wlr_output_update_enabled(struct wlr_output *output, bool enabled); void wlr_output_update_needs_swap(struct wlr_output *output); +void wlr_output_send_frame(struct wlr_output *output); #endif diff --git a/include/wlr/types/wlr_output.h b/include/wlr/types/wlr_output.h index 4eefbf55..7e9439af 100644 --- a/include/wlr/types/wlr_output.h +++ b/include/wlr/types/wlr_output.h @@ -63,6 +63,7 @@ struct wlr_output { bool needs_swap; // damage for cursors and fullscreen surface, in output-local coordinates pixman_region32_t damage; + bool frame_pending; float transform_matrix[16]; struct { @@ -123,6 +124,11 @@ bool wlr_output_make_current(struct wlr_output *output, int *buffer_age); */ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, pixman_region32_t *damage); +/** + * Manually schedules a `frame` event. If a `frame` event is already pending, + * it is a no-op. + */ +void wlr_output_schedule_frame(struct wlr_output *output); void wlr_output_set_gamma(struct wlr_output *output, uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b); uint32_t wlr_output_get_gamma_size(struct wlr_output *output); diff --git a/rootston/output.c b/rootston/output.c index c6341b6a..f928184b 100644 --- a/rootston/output.c +++ b/rootston/output.c @@ -338,7 +338,6 @@ static void render_output(struct roots_output *output) { struct roots_server *server = desktop->server; if (!wlr_output->enabled) { - output->frame_pending = false; return; } @@ -400,7 +399,6 @@ static void render_output(struct roots_output *output) { if (!pixman_region32_not_empty(&damage) && !wlr_output->needs_swap) { // Output doesn't need swap and isn't damaged, skip rendering completely - output->frame_pending = false; goto damage_finish; } @@ -470,7 +468,6 @@ renderer_end: wlr_renderer_scissor(output->desktop->server->renderer, NULL); wlr_renderer_end(server->renderer); wlr_output_swap_buffers(wlr_output, &now, &damage); - output->frame_pending = true; // same as decrementing, but works on unsigned integers output->previous_damage_idx += ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN - 1; output->previous_damage_idx %= ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN; @@ -488,21 +485,6 @@ static void output_handle_frame(struct wl_listener *listener, void *data) { render_output(output); } -static void handle_idle_render(void *data) { - struct roots_output *output = data; - render_output(output); -} - -static void schedule_render(struct roots_output *output) { - if (!output->frame_pending) { - // TODO: ask the backend to send a frame event when appropriate instead - struct wl_event_loop *ev = - wl_display_get_event_loop(output->desktop->server->wl_display); - wl_event_loop_add_idle(ev, handle_idle_render, output); - output->frame_pending = true; - } -} - static void output_damage_whole(struct roots_output *output) { int width, height; output_get_transformed_size(output->wlr_output, &width, &height); @@ -510,7 +492,7 @@ static void output_damage_whole(struct roots_output *output) { pixman_region32_union_rect(&output->damage, &output->damage, 0, 0, width, height); - schedule_render(output); + wlr_output_schedule_frame(output->wlr_output); } static bool view_accept_damage(struct roots_output *output, @@ -553,7 +535,7 @@ static void damage_whole_surface(struct wlr_surface *surface, pixman_region32_union_rect(&output->damage, &output->damage, box.x, box.y, box.width, box.height); - schedule_render(output); + wlr_output_schedule_frame(output->wlr_output); } static void damage_whole_decoration(struct roots_view *view, @@ -608,7 +590,7 @@ static void damage_from_surface(struct wlr_surface *surface, pixman_region32_union(&output->damage, &output->damage, &damage); pixman_region32_fini(&damage); - schedule_render(output); + wlr_output_schedule_frame(output->wlr_output); } void output_damage_from_view(struct roots_output *output, @@ -630,7 +612,7 @@ static void output_handle_needs_swap(struct wl_listener *listener, void *data) { wl_container_of(listener, output, needs_swap); pixman_region32_union(&output->damage, &output->damage, &output->wlr_output->damage); - schedule_render(output); + wlr_output_schedule_frame(output->wlr_output); } static void set_mode(struct wlr_output *output, diff --git a/types/wlr_output.c b/types/wlr_output.c index f23f1749..5676b0a8 100644 --- a/types/wlr_output.c +++ b/types/wlr_output.c @@ -499,6 +499,7 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, return false; } + output->frame_pending = true; output->needs_swap = false; pixman_region32_clear(&output->damage); @@ -509,6 +510,27 @@ bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when, return true; } +void wlr_output_send_frame(struct wlr_output *output) { + output->frame_pending = false; + wl_signal_emit(&output->events.frame, output); +} + +static void schedule_frame_handle_idle_timer(void *data) { + struct wlr_output *output = data; + wlr_output_send_frame(output); +} + +void wlr_output_schedule_frame(struct wlr_output *output) { + if (output->frame_pending) { + return; + } + + // TODO: ask the backend to send a frame event when appropriate instead + struct wl_event_loop *ev = wl_display_get_event_loop(output->display); + wl_event_loop_add_idle(ev, schedule_frame_handle_idle_timer, output); + output->frame_pending = true; +} + void wlr_output_set_gamma(struct wlr_output *output, uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b) { if (output->impl->set_gamma) { -- cgit v1.2.3 From babdd6ccf757f18ef15b50d9f16c55031a7c1944 Mon Sep 17 00:00:00 2001 From: emersion Date: Tue, 30 Jan 2018 19:45:57 +0100 Subject: backend: fix use-after-free when destroying backends The backend destroy signal is emitted before the output_remove signal is. When the destroy signal is emitted listeners remove their output_remove listener, so the output_remove signal is never received and listeners have an invalid output pointer. The correct way to solve this would be to remove the output_remove signal completely and use the wlr_output.events.destroy signal instead. This isn't yet possible because wl_signal_emit is unsafe and listeners cannot be removed in listeners. --- backend/backend.c | 1 - backend/drm/backend.c | 2 ++ backend/headless/backend.c | 2 ++ backend/headless/output.c | 2 -- backend/libinput/backend.c | 8 +++++--- backend/multi/backend.c | 5 +++++ backend/wayland/backend.c | 8 +++++--- backend/wayland/output.c | 9 +++++---- backend/x11/backend.c | 2 ++ types/wlr_output.c | 1 + 10 files changed, 27 insertions(+), 13 deletions(-) (limited to 'backend/x11/backend.c') diff --git a/backend/backend.c b/backend/backend.c index a71cf6b8..98b94c5c 100644 --- a/backend/backend.c +++ b/backend/backend.c @@ -37,7 +37,6 @@ void wlr_backend_destroy(struct wlr_backend *backend) { return; } - wl_signal_emit(&backend->events.destroy, backend); if (backend->impl && backend->impl->destroy) { backend->impl->destroy(backend); } else { diff --git a/backend/drm/backend.c b/backend/drm/backend.c index de69dad5..dc6757a5 100644 --- a/backend/drm/backend.c +++ b/backend/drm/backend.c @@ -34,6 +34,8 @@ static void wlr_drm_backend_destroy(struct wlr_backend *backend) { wlr_output_destroy(&conn->output); } + wl_signal_emit(&backend->events.destroy, backend); + wl_list_remove(&drm->display_destroy.link); wl_list_remove(&drm->session_signal.link); wl_list_remove(&drm->drm_invalidated.link); diff --git a/backend/headless/backend.c b/backend/headless/backend.c index 61409d41..0bf5ec28 100644 --- a/backend/headless/backend.c +++ b/backend/headless/backend.c @@ -51,6 +51,8 @@ static void backend_destroy(struct wlr_backend *wlr_backend) { wlr_input_device_destroy(&input_device->wlr_input_device); } + wl_signal_emit(&wlr_backend->events.destroy, backend); + wlr_egl_finish(&backend->egl); free(backend); } diff --git a/backend/headless/output.c b/backend/headless/output.c index 46f9d212..aac7cc20 100644 --- a/backend/headless/output.c +++ b/backend/headless/output.c @@ -62,8 +62,6 @@ static bool output_swap_buffers(struct wlr_output *wlr_output) { static void output_destroy(struct wlr_output *wlr_output) { struct wlr_headless_output *output = (struct wlr_headless_output *)wlr_output; - wl_signal_emit(&output->backend->backend.events.output_remove, - &output->wlr_output); wl_list_remove(&output->link); diff --git a/backend/libinput/backend.c b/backend/libinput/backend.c index c9352051..86477947 100644 --- a/backend/libinput/backend.c +++ b/backend/libinput/backend.c @@ -95,12 +95,12 @@ static bool wlr_libinput_backend_start(struct wlr_backend *_backend) { return true; } -static void wlr_libinput_backend_destroy(struct wlr_backend *_backend) { - if (!_backend) { +static void wlr_libinput_backend_destroy(struct wlr_backend *wlr_backend) { + if (!wlr_backend) { return; } struct wlr_libinput_backend *backend = - (struct wlr_libinput_backend *)_backend; + (struct wlr_libinput_backend *)wlr_backend; for (size_t i = 0; i < backend->wlr_device_lists.length; i++) { struct wl_list *wlr_devices = backend->wlr_device_lists.items[i]; @@ -112,6 +112,8 @@ static void wlr_libinput_backend_destroy(struct wlr_backend *_backend) { free(wlr_devices); } + wl_signal_emit(&wlr_backend->events.destroy, wlr_backend); + wl_list_remove(&backend->display_destroy.link); wl_list_remove(&backend->session_signal.link); diff --git a/backend/multi/backend.c b/backend/multi/backend.c index 1e574475..78f5c63b 100644 --- a/backend/multi/backend.c +++ b/backend/multi/backend.c @@ -42,11 +42,16 @@ static void subbackend_state_destroy(struct subbackend_state *sub) { static void multi_backend_destroy(struct wlr_backend *wlr_backend) { struct wlr_multi_backend *backend = (struct wlr_multi_backend *)wlr_backend; + wl_list_remove(&backend->display_destroy.link); + struct subbackend_state *sub, *next; wl_list_for_each_safe(sub, next, &backend->backends, link) { wlr_backend_destroy(sub->backend); } + + // Destroy this backend only after removing all sub-backends + wl_signal_emit(&wlr_backend->events.destroy, backend); free(backend); } diff --git a/backend/wayland/backend.c b/backend/wayland/backend.c index eca79350..458c9dd0 100644 --- a/backend/wayland/backend.c +++ b/backend/wayland/backend.c @@ -64,9 +64,9 @@ static bool wlr_wl_backend_start(struct wlr_backend *_backend) { return true; } -static void wlr_wl_backend_destroy(struct wlr_backend *_backend) { - struct wlr_wl_backend *backend = (struct wlr_wl_backend *)_backend; - if (!_backend) { +static void wlr_wl_backend_destroy(struct wlr_backend *wlr_backend) { + struct wlr_wl_backend *backend = (struct wlr_wl_backend *)wlr_backend; + if (backend == NULL) { return; } @@ -80,6 +80,8 @@ static void wlr_wl_backend_destroy(struct wlr_backend *_backend) { wlr_input_device_destroy(input_device); } + wl_signal_emit(&wlr_backend->events.destroy, wlr_backend); + wl_list_remove(&backend->local_display_destroy.link); free(backend->seat_name); diff --git a/backend/wayland/output.c b/backend/wayland/output.c index 4a8fb0bf..a9140ff7 100644 --- a/backend/wayland/output.c +++ b/backend/wayland/output.c @@ -161,11 +161,12 @@ static bool wlr_wl_output_set_cursor(struct wlr_output *_output, return true; } -static void wlr_wl_output_destroy(struct wlr_output *_output) { +static void wlr_wl_output_destroy(struct wlr_output *wlr_output) { struct wlr_wl_backend_output *output = - (struct wlr_wl_backend_output *)_output; - wl_signal_emit(&output->backend->backend.events.output_remove, - &output->wlr_output); + (struct wlr_wl_backend_output *)wlr_output; + if (output == NULL) { + return; + } wl_list_remove(&output->link); diff --git a/backend/x11/backend.c b/backend/x11/backend.c index 3bad8d61..44e29be1 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -259,6 +259,8 @@ static void wlr_x11_backend_destroy(struct wlr_backend *backend) { xkb_state_unref(x11->keyboard_dev.keyboard->xkb_state); } + wl_signal_emit(&backend->events.destroy, backend); + wl_list_remove(&x11->display_destroy.link); wl_event_source_remove(x11->frame_timer); diff --git a/types/wlr_output.c b/types/wlr_output.c index 54f4baf8..1878dbb3 100644 --- a/types/wlr_output.c +++ b/types/wlr_output.c @@ -286,6 +286,7 @@ void wlr_output_destroy(struct wlr_output *output) { wlr_output_destroy_global(output); wlr_output_set_fullscreen_surface(output, NULL); + wl_signal_emit(&output->backend->events.output_remove, output); wl_signal_emit(&output->events.destroy, output); struct wlr_output_mode *mode, *tmp_mode; -- cgit v1.2.3