From 731ee240899da70313412d7792946418ee663f15 Mon Sep 17 00:00:00 2001 From: emersion Date: Wed, 21 Mar 2018 19:59:35 +0100 Subject: [PATCH 1/5] xdg-shell, xdg-shell-v6: don't emit unmap if surface is unmapped Some clients create an xdg_surface, then create an xdg_toplevel, but don't map it and destroy it right after. The xdg_surface ends up in a state where it isn't mapped but role-specific resources have been allocated. xdg_surface_unmap needs to free these resources without emitting the unmap signal. --- types/wlr_xdg_shell.c | 4 +++- types/wlr_xdg_shell_v6.c | 4 +++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/types/wlr_xdg_shell.c b/types/wlr_xdg_shell.c index 5b02088d..76859d7b 100644 --- a/types/wlr_xdg_shell.c +++ b/types/wlr_xdg_shell.c @@ -173,7 +173,9 @@ static void xdg_surface_unmap(struct wlr_xdg_surface *surface) { assert(surface->role != WLR_XDG_SURFACE_ROLE_NONE); // TODO: probably need to ungrab before this event - wlr_signal_emit_safe(&surface->events.unmap, surface); + if (surface->mapped) { + wlr_signal_emit_safe(&surface->events.unmap, surface); + } if (surface->role == WLR_XDG_SURFACE_ROLE_TOPLEVEL) { wl_resource_set_user_data(surface->toplevel->resource, NULL); diff --git a/types/wlr_xdg_shell_v6.c b/types/wlr_xdg_shell_v6.c index a0c74e6f..68fe4b29 100644 --- a/types/wlr_xdg_shell_v6.c +++ b/types/wlr_xdg_shell_v6.c @@ -173,7 +173,9 @@ static void xdg_surface_unmap(struct wlr_xdg_surface_v6 *surface) { assert(surface->role != WLR_XDG_SURFACE_V6_ROLE_NONE); // TODO: probably need to ungrab before this event - wlr_signal_emit_safe(&surface->events.unmap, surface); + if (surface->mapped) { + wlr_signal_emit_safe(&surface->events.unmap, surface); + } if (surface->role == WLR_XDG_SURFACE_V6_ROLE_TOPLEVEL) { wl_resource_set_user_data(surface->toplevel->resource, NULL); From c7f8b28d8d48a9857659ad73935a3b513e588d4c Mon Sep 17 00:00:00 2001 From: Uli Schlachter Date: Mon, 26 Mar 2018 10:48:30 +0200 Subject: [PATCH 2/5] Fix use-after-free in x11 backend during shutdown The xcb_connection_t instance that is used here comes from XGetXCBConnection(), is created by XOpenDisplay(), and is owned by the returned Display*. Calling xcb_disconnect() directly on it leads to various use-after-frees during shutdown, as reported by valgrind. The first one of the about 30 errors is: Invalid read of size 4 at 0x71F2051: xcb_take_socket (in /usr/lib64/libxcb.so.1.1.0) by 0x78551DD: ??? (in /usr/lib64/libX11.so.6.3.0) by 0x7855A14: _XFlush (in /usr/lib64/libX11.so.6.3.0) by 0x7858504: _XGetRequest (in /usr/lib64/libX11.so.6.3.0) by 0x7838966: XFreeGC (in /usr/lib64/libX11.so.6.3.0) by 0x783238B: XCloseDisplay (in /usr/lib64/libX11.so.6.3.0) by 0x4E680C2: wlr_x11_backend_destroy (backend.c:333) by 0x4E57E94: wlr_backend_destroy (backend.c:39) by 0x4E629FB: multi_backend_destroy (backend.c:47) by 0x4E62B5A: handle_display_destroy (backend.c:90) by 0x50B7E9F: ??? (in /usr/lib64/libwayland-server.so.0.1.0) by 0x50B8476: wl_display_destroy (in /usr/lib64/libwayland-server.so.0.1.0) Address 0xc14dda0 is 0 bytes inside a block of size 21,152 free'd at 0x4C2DD18: free (vg_replace_malloc.c:530) by 0x4E680A5: wlr_x11_backend_destroy (backend.c:330) by 0x4E57E94: wlr_backend_destroy (backend.c:39) by 0x4E629FB: multi_backend_destroy (backend.c:47) by 0x4E62B5A: handle_display_destroy (backend.c:90) by 0x50B7E9F: ??? (in /usr/lib64/libwayland-server.so.0.1.0) by 0x50B8476: wl_display_destroy (in /usr/lib64/libwayland-server.so.0.1.0) by 0x40C54E: main (main.c:84) Block was alloc'd at at 0x4C2EA1E: calloc (vg_replace_malloc.c:711) by 0x71F0C60: xcb_connect_to_fd (in /usr/lib64/libxcb.so.1.1.0) by 0x71F4BD4: xcb_connect_to_display_with_auth_info (in /usr/lib64/libxcb.so.1.1.0) by 0x7854AA1: _XConnectXCB (in /usr/lib64/libX11.so.6.3.0) by 0x7845481: XOpenDisplay (in /usr/lib64/libX11.so.6.3.0) by 0x4E681B6: wlr_x11_backend_create (backend.c:376) by 0x4E580EE: wlr_backend_autocreate (backend.c:99) by 0x40C27D: main (main.c:35) Normally, one would expect this to crash during XCloseDisplay() when xcb_disconnect() is called again and frees the same data again (glibc would detect a double free). However, XCloseDisplay() tries to clean up some internal caches first for which it has to send requests to the X11 server (e.g. the XFreeGC() above). This fails since the file descriptor was already closed, which causes an IO error. Xlib's _XDefaultIOError() handles this by printing an error message and calling exit(1). Thus, the only symptom of this problem was compositors exiting mid-shutdown and printing an error message: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0" after 6 requests (6 known processed) with 0 events remaining. Fixes: https://github.com/swaywm/wlroots/issues/745 Signed-off-by: Uli Schlachter --- backend/x11/backend.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/backend/x11/backend.c b/backend/x11/backend.c index dd2c0a6e..36d72d9e 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -326,9 +326,6 @@ static void wlr_x11_backend_destroy(struct wlr_backend *backend) { wl_event_source_remove(x11->frame_timer); wlr_egl_finish(&x11->egl); - if (x11->xcb_conn) { - xcb_disconnect(x11->xcb_conn); - } if (x11->xlib_conn) { XCloseDisplay(x11->xlib_conn); } @@ -428,7 +425,6 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display, error_event: wl_event_source_remove(x11->event_source); error_x11: - xcb_disconnect(x11->xcb_conn); XCloseDisplay(x11->xlib_conn); free(x11); return NULL; From 793c3b30473bcad488eae9266b67ccfdf3106231 Mon Sep 17 00:00:00 2001 From: emersion Date: Mon, 26 Mar 2018 12:41:51 -0400 Subject: [PATCH 3/5] render: add simple functions to render rectangles and ellipses --- examples/tablet.c | 18 +++++++------- include/wlr/render/interface.h | 4 +-- include/wlr/render/wlr_renderer.h | 16 +++++++++--- render/gles2/renderer.c | 8 +++--- render/wlr_renderer.c | 41 +++++++++++++++++++++++-------- rootston/output.c | 2 +- 6 files changed, 60 insertions(+), 29 deletions(-) diff --git a/examples/tablet.c b/examples/tablet.c index 65c559cb..9379fac3 100644 --- a/examples/tablet.c +++ b/examples/tablet.c @@ -49,7 +49,6 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts wlr_renderer_begin(sample->renderer, wlr_output->width, wlr_output->height); wlr_renderer_clear(sample->renderer, (float[]){0.25f, 0.25f, 0.25f, 1}); - float matrix[9]; float distance = 0.8f * (1 - sample->distance); float tool_color[4] = { distance, distance, distance, 1 }; for (size_t i = 0; sample->button && i < 4; ++i) { @@ -61,12 +60,12 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts float pad_height = sample->height_mm * scale; float left = width / 2.0f - pad_width / 2.0f; float top = height / 2.0f - pad_height / 2.0f; - struct wlr_box box = { + const struct wlr_box box = { .x = left, .y = top, .width = pad_width, .height = pad_height, }; - wlr_matrix_project_box(matrix, &box, 0, 0, wlr_output->transform_matrix); - wlr_render_colored_quad(sample->renderer, sample->pad_color, matrix); + wlr_render_rect(sample->renderer, &box, sample->pad_color, + wlr_output->transform_matrix); if (sample->proximity) { struct wlr_box box = { @@ -75,16 +74,17 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts .width = 16 * (sample->pressure + 1), .height = 16 * (sample->pressure + 1), }; - wlr_matrix_project_box(matrix, &box, 0, sample->ring, - wlr_output->transform_matrix); - wlr_render_colored_quad(sample->renderer, tool_color, matrix); + float matrix[9]; + wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, + sample->ring, wlr_output->transform_matrix); + wlr_render_quad_with_matrix(sample->renderer, tool_color, matrix); + box.x += sample->x_tilt; box.y += sample->y_tilt; box.width /= 2; box.height /= 2; - wlr_matrix_project_box(matrix, &box, 0, 0, + wlr_render_rect(sample->renderer, &box, tool_color, wlr_output->transform_matrix); - wlr_render_colored_quad(sample->renderer, tool_color, matrix); } wlr_renderer_end(sample->renderer); diff --git a/include/wlr/render/interface.h b/include/wlr/render/interface.h index 7f25c0ff..d4cd35f8 100644 --- a/include/wlr/render/interface.h +++ b/include/wlr/render/interface.h @@ -27,9 +27,9 @@ struct wlr_renderer_impl { bool (*render_texture_with_matrix)(struct wlr_renderer *renderer, struct wlr_texture *texture, const float matrix[static 9], float alpha); - void (*render_quad)(struct wlr_renderer *renderer, + void (*render_quad_with_matrix)(struct wlr_renderer *renderer, const float color[static 4], const float matrix[static 9]); - void (*render_ellipse)(struct wlr_renderer *renderer, + void (*render_ellipse_with_matrix)(struct wlr_renderer *renderer, const float color[static 4], const float matrix[static 9]); const enum wl_shm_format *(*formats)( struct wlr_renderer *renderer, size_t *len); diff --git a/include/wlr/render/wlr_renderer.h b/include/wlr/render/wlr_renderer.h index 6f0d2ecc..5c78089e 100644 --- a/include/wlr/render/wlr_renderer.h +++ b/include/wlr/render/wlr_renderer.h @@ -36,14 +36,24 @@ bool wlr_render_texture(struct wlr_renderer *r, struct wlr_texture *texture, bool wlr_render_texture_with_matrix(struct wlr_renderer *r, struct wlr_texture *texture, const float matrix[static 9], float alpha); /** - * Renders a solid quad in the specified color. + * Renders a solid rectangle in the specified color. */ -void wlr_render_colored_quad(struct wlr_renderer *r, +void wlr_render_rect(struct wlr_renderer *r, const struct wlr_box *box, + const float color[static 4], const float projection[static 9]); +/** + * Renders a solid quadrangle in the specified color with the specified matrix. + */ +void wlr_render_quad_with_matrix(struct wlr_renderer *r, const float color[static 4], const float matrix[static 9]); /** * Renders a solid ellipse in the specified color. */ -void wlr_render_colored_ellipse(struct wlr_renderer *r, +void wlr_render_ellipse(struct wlr_renderer *r, const struct wlr_box *box, + const float color[static 4], const float projection[static 9]); +/** + * Renders a solid ellipse in the specified color with the specified matrix. + */ +void wlr_render_ellipse_with_matrix(struct wlr_renderer *r, const float color[static 4], const float matrix[static 9]); /** * Returns a list of pixel formats supported by this renderer. diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index 9403c0ed..61665a07 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -144,7 +144,7 @@ static bool gles2_render_texture_with_matrix( } -static void gles2_render_quad(struct wlr_renderer *wlr_renderer, +static void gles2_render_quad_with_matrix(struct wlr_renderer *wlr_renderer, const float color[static 4], const float matrix[static 9]) { struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer); @@ -161,7 +161,7 @@ static void gles2_render_quad(struct wlr_renderer *wlr_renderer, GLES2_DEBUG_POP; } -static void gles2_render_ellipse(struct wlr_renderer *wlr_renderer, +static void gles2_render_ellipse_with_matrix(struct wlr_renderer *wlr_renderer, const float color[static 4], const float matrix[static 9]) { struct wlr_gles2_renderer *renderer = gles2_get_renderer(wlr_renderer); @@ -256,8 +256,8 @@ static const struct wlr_renderer_impl renderer_impl = { .scissor = gles2_scissor, .texture_create = gles2_renderer_texture_create, .render_texture_with_matrix = gles2_render_texture_with_matrix, - .render_quad = gles2_render_quad, - .render_ellipse = gles2_render_ellipse, + .render_quad_with_matrix = gles2_render_quad_with_matrix, + .render_ellipse_with_matrix = gles2_render_ellipse_with_matrix, .formats = gles2_renderer_formats, .buffer_is_drm = gles2_buffer_is_drm, .read_pixels = gles2_read_pixels, diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c index 622aa1dd..5598a0e7 100644 --- a/render/wlr_renderer.c +++ b/render/wlr_renderer.c @@ -39,13 +39,16 @@ struct wlr_texture *wlr_render_texture_create(struct wlr_renderer *r) { bool wlr_render_texture(struct wlr_renderer *r, struct wlr_texture *texture, const float projection[static 9], int x, int y, float alpha) { - float mat[9]; - wlr_matrix_identity(mat); - wlr_matrix_translate(mat, x, y); - wlr_matrix_scale(mat, texture->width, texture->height); - wlr_matrix_multiply(mat, projection, mat); + const struct wlr_box box = { + .x = x, .y = y, + .width = texture->width, .height = texture->height, + }; - return wlr_render_texture_with_matrix(r, texture, mat, alpha); + float matrix[9]; + wlr_matrix_project_box(matrix, &box, WL_OUTPUT_TRANSFORM_NORMAL, 0, + projection); + + return wlr_render_texture_with_matrix(r, texture, matrix, alpha); } bool wlr_render_texture_with_matrix(struct wlr_renderer *r, @@ -54,14 +57,32 @@ bool wlr_render_texture_with_matrix(struct wlr_renderer *r, return r->impl->render_texture_with_matrix(r, texture, matrix, alpha); } -void wlr_render_colored_quad(struct wlr_renderer *r, +void wlr_render_rect(struct wlr_renderer *r, const struct wlr_box *box, + const float color[static 4], const float projection[static 9]) { + float matrix[9]; + wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0, + projection); + + wlr_render_quad_with_matrix(r, color, matrix); +} + +void wlr_render_quad_with_matrix(struct wlr_renderer *r, const float color[static 4], const float matrix[static 9]) { - r->impl->render_quad(r, color, matrix); + r->impl->render_quad_with_matrix(r, color, matrix); +} + +void wlr_render_ellipse(struct wlr_renderer *r, const struct wlr_box *box, + const float color[static 4], const float projection[static 9]) { + float matrix[9]; + wlr_matrix_project_box(matrix, box, WL_OUTPUT_TRANSFORM_NORMAL, 0, + projection); + + wlr_render_ellipse_with_matrix(r, color, matrix); } -void wlr_render_colored_ellipse(struct wlr_renderer *r, +void wlr_render_ellipse_with_matrix(struct wlr_renderer *r, const float color[static 4], const float matrix[static 9]) { - r->impl->render_ellipse(r, color, matrix); + r->impl->render_ellipse_with_matrix(r, color, matrix); } const enum wl_shm_format *wlr_renderer_get_formats( diff --git a/rootston/output.c b/rootston/output.c index 1284c928..c75935af 100644 --- a/rootston/output.c +++ b/rootston/output.c @@ -363,7 +363,7 @@ static void render_decorations(struct roots_view *view, pixman_region32_rectangles(&damage, &nrects); for (int i = 0; i < nrects; ++i) { scissor_output(output, &rects[i]); - wlr_render_colored_quad(renderer, color, matrix); + wlr_render_quad_with_matrix(renderer, color, matrix); } damage_finish: From 4555fc8a543caed15250a038e979bb24cee03a6c Mon Sep 17 00:00:00 2001 From: emersion Date: Mon, 26 Mar 2018 15:31:08 -0400 Subject: [PATCH 4/5] Fix damage tracking for rotated surfaces It was broken because the damage extents were rotated about its own center, not about the center of the surface. This adds a new wlr_region_rotated_bounds that rotates regions. This allows us to have only one code path (for both non-rotated views and rotated views) and optimizes rendering for rotated views. --- include/wlr/types/wlr_box.h | 2 +- include/wlr/util/region.h | 7 ++++++ rootston/output.c | 46 +++++++++++++++------------------- util/region.c | 49 +++++++++++++++++++++++++++++++++++++ 4 files changed, 77 insertions(+), 27 deletions(-) diff --git a/include/wlr/types/wlr_box.h b/include/wlr/types/wlr_box.h index fc86f0ac..0e586a18 100644 --- a/include/wlr/types/wlr_box.h +++ b/include/wlr/types/wlr_box.h @@ -27,7 +27,7 @@ void wlr_box_transform(const struct wlr_box *box, struct wlr_box *dest); /** - * Creates the smallest box that contains a rotated box. + * Creates the smallest box that contains the box rotated about its center. */ void wlr_box_rotated_bounds(const struct wlr_box *box, float rotation, struct wlr_box *dest); diff --git a/include/wlr/util/region.h b/include/wlr/util/region.h index 7883af97..c0fe6063 100644 --- a/include/wlr/util/region.h +++ b/include/wlr/util/region.h @@ -26,4 +26,11 @@ void wlr_region_transform(pixman_region32_t *dst, pixman_region32_t *src, void wlr_region_expand(pixman_region32_t *dst, pixman_region32_t *src, int distance); +/* + * Builds the smallest possible region that contains the region rotated about + * the point (ox, oy). + */ +void wlr_region_rotated_bounds(pixman_region32_t *dst, pixman_region32_t *src, + float rotation, int ox, int oy); + #endif diff --git a/rootston/output.c b/rootston/output.c index 1284c928..c4e5cc7c 100644 --- a/rootston/output.c +++ b/rootston/output.c @@ -486,6 +486,9 @@ static void render_output(struct roots_output *output) { goto renderer_end; } + // Uncomment this line to debug damage tracking + //wlr_renderer_clear(renderer, (float[]){1, 1, 0, 0}); + int nrects; pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects); for (int i = 0; i < nrects; ++i) { @@ -667,32 +670,23 @@ static void damage_from_surface(struct wlr_surface *surface, surface_intersect_output(surface, output->desktop->layout, wlr_output, lx, ly, rotation, &box); - if (rotation == 0) { - pixman_region32_t damage; - pixman_region32_init(&damage); - pixman_region32_copy(&damage, &surface->current->surface_damage); - wlr_region_scale(&damage, &damage, wlr_output->scale); - if (ceil(wlr_output->scale) > surface->current->scale) { - // When scaling up a surface, it'll become blurry so we need to - // expand the damage region - wlr_region_expand(&damage, &damage, - ceil(wlr_output->scale) - surface->current->scale); - } - pixman_region32_translate(&damage, box.x, box.y); - wlr_output_damage_add(output->damage, &damage); - pixman_region32_fini(&damage); - } else { - pixman_box32_t *extents = - pixman_region32_extents(&surface->current->surface_damage); - struct wlr_box damage_box = { - .x = box.x + extents->x1 * wlr_output->scale, - .y = box.y + extents->y1 * wlr_output->scale, - .width = (extents->x2 - extents->x1) * wlr_output->scale, - .height = (extents->y2 - extents->y1) * wlr_output->scale, - }; - wlr_box_rotated_bounds(&damage_box, rotation, &damage_box); - wlr_output_damage_add_box(output->damage, &damage_box); - } + int center_x = box.x + box.width/2; + int center_y = box.y + box.height/2; + + pixman_region32_t damage; + pixman_region32_init(&damage); + pixman_region32_copy(&damage, &surface->current->surface_damage); + wlr_region_scale(&damage, &damage, wlr_output->scale); + if (ceil(wlr_output->scale) > surface->current->scale) { + // When scaling up a surface, it'll become blurry so we need to + // expand the damage region + wlr_region_expand(&damage, &damage, + ceil(wlr_output->scale) - surface->current->scale); + } + pixman_region32_translate(&damage, box.x, box.y); + wlr_region_rotated_bounds(&damage, &damage, rotation, center_x, center_y); + wlr_output_damage_add(output->damage, &damage); + pixman_region32_fini(&damage); } void output_damage_from_view(struct roots_output *output, diff --git a/util/region.c b/util/region.c index 88e38fd2..38f84c5e 100644 --- a/util/region.c +++ b/util/region.c @@ -128,3 +128,52 @@ void wlr_region_expand(pixman_region32_t *dst, pixman_region32_t *src, pixman_region32_init_rects(dst, dst_rects, nrects); free(dst_rects); } + +void wlr_region_rotated_bounds(pixman_region32_t *dst, pixman_region32_t *src, + float rotation, int ox, int oy) { + if (rotation == 0) { + pixman_region32_copy(dst, src); + return; + } + + int nrects; + pixman_box32_t *src_rects = pixman_region32_rectangles(src, &nrects); + + pixman_box32_t *dst_rects = malloc(nrects * sizeof(pixman_box32_t)); + if (dst_rects == NULL) { + return; + } + + for (int i = 0; i < nrects; ++i) { + double x1 = src_rects[i].x1 - ox; + double y1 = src_rects[i].y1 - oy; + double x2 = src_rects[i].x2 - ox; + double y2 = src_rects[i].y2 - oy; + + double rx1 = x1 * cos(rotation) - y1 * sin(rotation); + double ry1 = x1 * sin(rotation) + y1 * cos(rotation); + + double rx2 = x2 * cos(rotation) - y1 * sin(rotation); + double ry2 = x2 * sin(rotation) + y1 * cos(rotation); + + double rx3 = x2 * cos(rotation) - y2 * sin(rotation); + double ry3 = x2 * sin(rotation) + y2 * cos(rotation); + + double rx4 = x1 * cos(rotation) - y2 * sin(rotation); + double ry4 = x1 * sin(rotation) + y2 * cos(rotation); + + x1 = fmin(fmin(rx1, rx2), fmin(rx3, rx4)); + y1 = fmin(fmin(ry1, ry2), fmin(ry3, ry4)); + x2 = fmax(fmax(rx1, rx2), fmax(rx3, rx4)); + y2 = fmax(fmax(ry1, ry2), fmax(ry3, ry4)); + + dst_rects[i].x1 = floor(ox + x1); + dst_rects[i].x2 = ceil(ox + x2); + dst_rects[i].y1 = floor(oy + y1); + dst_rects[i].y2 = ceil(oy + y2); + } + + pixman_region32_fini(dst); + pixman_region32_init_rects(dst, dst_rects, nrects); + free(dst_rects); +} From 140bc1947623f2e3a89e3b22e18db4eba2ffce4d Mon Sep 17 00:00:00 2001 From: emersion Date: Mon, 26 Mar 2018 17:34:46 -0400 Subject: [PATCH 5/5] rootston: add -D flag to enable damage tracking debugging --- include/rootston/config.h | 2 ++ rootston/config.c | 9 +++++++-- rootston/output.c | 5 +++-- 3 files changed, 12 insertions(+), 4 deletions(-) diff --git a/include/rootston/config.h b/include/rootston/config.h index 9926d9c2..0a67ac1e 100644 --- a/include/rootston/config.h +++ b/include/rootston/config.h @@ -66,8 +66,10 @@ struct roots_config { struct wl_list bindings; struct wl_list keyboards; struct wl_list cursors; + char *config_path; char *startup_cmd; + bool debug_damage_tracking; }; /** diff --git a/rootston/config.c b/rootston/config.c index e63efc0b..0883f6d4 100644 --- a/rootston/config.c +++ b/rootston/config.c @@ -25,7 +25,9 @@ static void usage(const char *name, int ret) { " (default: rootston.ini).\n" " See `rootston.ini.example` for config\n" " file documentation.\n" - " -E Command that will be ran at startup.\n" , name); + " -E Command that will be ran at startup.\n" + " -D Enable damage tracking debugging.\n", + name); exit(ret); } @@ -394,7 +396,7 @@ struct roots_config *roots_config_create_from_args(int argc, char *argv[]) { wl_list_init(&config->bindings); int c; - while ((c = getopt(argc, argv, "C:E:h")) != -1) { + while ((c = getopt(argc, argv, "C:E:hD")) != -1) { switch (c) { case 'C': config->config_path = strdup(optarg); @@ -402,6 +404,9 @@ struct roots_config *roots_config_create_from_args(int argc, char *argv[]) { case 'E': config->startup_cmd = strdup(optarg); break; + case 'D': + config->debug_damage_tracking = true; + break; case 'h': case '?': usage(argv[0], c != 'h'); diff --git a/rootston/output.c b/rootston/output.c index c4e5cc7c..7de85ffb 100644 --- a/rootston/output.c +++ b/rootston/output.c @@ -486,8 +486,9 @@ static void render_output(struct roots_output *output) { goto renderer_end; } - // Uncomment this line to debug damage tracking - //wlr_renderer_clear(renderer, (float[]){1, 1, 0, 0}); + if (server->config->debug_damage_tracking) { + wlr_renderer_clear(renderer, (float[]){1, 1, 0, 0}); + } int nrects; pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);