From 549a53f18638438aba183dfdd1e0b6650985c3eb Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Sat, 5 Apr 2014 09:22:15 -0500 Subject: [PATCH] Add a simple client for testing compositor damage handling This allows for easily testing a compositor's damage tracking in all currently available configurations including wl_surface.buffer_transform, wl_surface.buffer_scale, and wl_viewport. It also includes a --rotating-damage that flag instructs the client to change the wl_surface.buffer_transform on every commit. This tests the compositor for proper handling of texture uploads even when the transform has changed but the buffer size hasn't. --- .gitignore | 1 + Makefile.am | 12 + clients/simple-damage.c | 880 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 893 insertions(+) create mode 100644 clients/simple-damage.c diff --git a/.gitignore b/.gitignore index f9a6a7b3..fbffaa5b 100644 --- a/.gitignore +++ b/.gitignore @@ -50,6 +50,7 @@ weston-scaler weston-simple-egl weston-simple-shm weston-simple-touch +weston-simple-damage weston-smoke weston-stacking weston-subsurfaces diff --git a/Makefile.am b/Makefile.am index 343adc6c..9fc04eeb 100644 --- a/Makefile.am +++ b/Makefile.am @@ -386,6 +386,7 @@ endif if BUILD_SIMPLE_CLIENTS demo_clients += \ weston-simple-shm \ + weston-simple-damage \ weston-simple-touch \ weston-multi-resource @@ -398,6 +399,17 @@ nodist_weston_simple_shm_SOURCES = \ weston_simple_shm_CFLAGS = $(AM_CFLAGS) $(SIMPLE_CLIENT_CFLAGS) weston_simple_shm_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la +weston_simple_damage_SOURCES = clients/simple-damage.c +nodist_weston_simple_damage_SOURCES = \ + protocol/scaler-protocol.c \ + protocol/scaler-client-protocol.h \ + protocol/xdg-shell-protocol.c \ + protocol/xdg-shell-client-protocol.h \ + protocol/fullscreen-shell-protocol.c \ + protocol/fullscreen-shell-client-protocol.h +weston_simple_damage_CFLAGS = $(AM_CFLAGS) $(SIMPLE_CLIENT_CFLAGS) +weston_simple_damage_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la + weston_simple_touch_SOURCES = clients/simple-touch.c weston_simple_touch_CFLAGS = $(AM_CFLAGS) $(SIMPLE_CLIENT_CFLAGS) weston_simple_touch_LDADD = $(SIMPLE_CLIENT_LIBS) libshared.la diff --git a/clients/simple-damage.c b/clients/simple-damage.c new file mode 100644 index 00000000..d7a7c700 --- /dev/null +++ b/clients/simple-damage.c @@ -0,0 +1,880 @@ +/* + * Copyright © 2014 Jason Ekstrand + * Copyright © 2011 Benjamin Franzke + * Copyright © 2010 Intel Corporation + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting documentation, and + * that the name of the copyright holders not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. The copyright holders make no representations + * about the suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE + * OF THIS SOFTWARE. + */ + +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include "../shared/os-compatibility.h" +#include "xdg-shell-client-protocol.h" +#include "fullscreen-shell-client-protocol.h" +#include "scaler-client-protocol.h" + +int print_debug = 0; + +struct display { + struct wl_display *display; + struct wl_registry *registry; + int compositor_version; + struct wl_compositor *compositor; + struct wl_scaler *scaler; + struct xdg_shell *shell; + struct _wl_fullscreen_shell *fshell; + struct wl_shm *shm; + uint32_t formats; +}; + +struct buffer { + struct wl_buffer *buffer; + uint32_t *shm_data; + int busy; +}; + +enum window_flags { + WINDOW_FLAG_USE_VIEWPORT = 0x1, + WINDOW_FLAG_ROTATING_TRANSFORM = 0x2, +}; + +struct window { + struct display *display; + int width, height, border; + struct wl_surface *surface; + struct wl_viewport *viewport; + struct xdg_surface *xdg_surface; + struct wl_callback *callback; + struct buffer buffers[2]; + struct buffer *prev_buffer; + + enum window_flags flags; + int scale; + enum wl_output_transform transform; + + struct { + float x, y; /* position in pixels */ + float dx, dy; /* velocity in pixels/second */ + int radius; /* radius in pixels */ + uint32_t prev_time; + } ball; +}; + +static int running = 1; + +static void +buffer_release(void *data, struct wl_buffer *buffer) +{ + struct buffer *mybuf = data; + + mybuf->busy = 0; +} + +static const struct wl_buffer_listener buffer_listener = { + buffer_release +}; + +static int +create_shm_buffer(struct display *display, struct buffer *buffer, + int width, int height, uint32_t format) +{ + struct wl_shm_pool *pool; + int fd, size, pitch; + void *data; + + pitch = width * 4; + size = pitch * height; + + fd = os_create_anonymous_file(size); + if (fd < 0) { + fprintf(stderr, "creating a buffer file for %d B failed: %m\n", + size); + return -1; + } + + data = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); + if (data == MAP_FAILED) { + fprintf(stderr, "mmap failed: %m\n"); + close(fd); + return -1; + } + + pool = wl_shm_create_pool(display->shm, fd, size); + buffer->buffer = wl_shm_pool_create_buffer(pool, 0, + width, height, + pitch, format); + wl_buffer_add_listener(buffer->buffer, &buffer_listener, buffer); + wl_shm_pool_destroy(pool); + close(fd); + + buffer->shm_data = data; + + return 0; +} + +static void +handle_configure(void *data, struct xdg_surface *surface, + int32_t width, int32_t height, struct wl_array *states, + uint32_t serial) +{ +} + +static void +handle_close(void *data, struct xdg_surface *xdg_surface) +{ + running = 0; +} + +static const struct xdg_surface_listener xdg_surface_listener = { + handle_configure, + handle_close, +}; + +static float +bounded_randf(float a, float b) +{ + return a + ((float)rand() / (float)RAND_MAX) * (b - a); +} + +static void +window_init_game(struct window *window) +{ + int ax1, ay1, ax2, ay2; /* playable arena size */ + struct timeval tv; + + gettimeofday(&tv, NULL); + srand(tv.tv_usec); + + window->ball.radius = 10; + + ax1 = window->border + window->ball.radius; + ay1 = window->border + window->ball.radius; + ax2 = window->width - window->border - window->ball.radius; + ay2 = window->height - window->border - window->ball.radius; + + window->ball.x = bounded_randf(ax1, ax2); + window->ball.y = bounded_randf(ay1, ay2); + + window->ball.dx = bounded_randf(0, window->width); + window->ball.dy = bounded_randf(0, window->height); + + window->ball.prev_time = 0; +} + +static void +window_advance_game(struct window *window, uint32_t timestamp) +{ + int ax1, ay1, ax2, ay2; /* Arena size */ + float dt; + + if (window->ball.prev_time == 0) { + /* first pass, don't do anything */ + window->ball.prev_time = timestamp; + return; + } + + /* dt in seconds */ + dt = (float)(timestamp - window->ball.prev_time) / 1000.0f; + + ax1 = window->border + window->ball.radius; + ay1 = window->border + window->ball.radius; + ax2 = window->width - window->border - window->ball.radius; + ay2 = window->height - window->border - window->ball.radius; + + window->ball.x += window->ball.dx * dt; + while (window->ball.x < ax1 || ax2 < window->ball.x) { + if (window->ball.x < ax1) + window->ball.x = 2 * ax1 - window->ball.x; + if (ax2 <= window->ball.x) + window->ball.x = 2 * ax2 - window->ball.x; + + window->ball.dx *= -1.0f; + } + + window->ball.y += window->ball.dy * dt; + while (window->ball.y < ay1 || ay2 < window->ball.y) { + if (window->ball.y < ay1) + window->ball.y = 2 * ay1 - window->ball.y; + if (ay2 <= window->ball.y) + window->ball.y = 2 * ay2 - window->ball.y; + + window->ball.dy *= -1.0f; + } + + window->ball.prev_time = timestamp; +} + +static struct window * +create_window(struct display *display, int width, int height, + enum wl_output_transform transform, int scale, + enum window_flags flags) +{ + struct window *window; + + if (display->compositor_version < 2 && + (transform != WL_OUTPUT_TRANSFORM_NORMAL || + flags & WINDOW_FLAG_ROTATING_TRANSFORM)) { + fprintf(stderr, "wl_surface.buffer_transform unsupported in " + "wl_surface version %d\n", + display->compositor_version); + exit(1); + } + + if (display->compositor_version < 3 && + (! (flags & WINDOW_FLAG_USE_VIEWPORT)) && scale != 1) { + fprintf(stderr, "wl_surface.buffer_scale unsupported in " + "wl_surface version %d\n", + display->compositor_version); + exit(1); + } + + if (display->scaler == NULL && (flags & WINDOW_FLAG_USE_VIEWPORT)) { + fprintf(stderr, "Compositor does not support wl_viewport"); + exit(1); + } + + window = calloc(1, sizeof *window); + if (!window) + return NULL; + + window->callback = NULL; + window->display = display; + window->width = width; + window->height = height; + window->border = 10; + window->flags = flags; + window->transform = transform; + window->scale = scale; + + window_init_game(window); + + window->surface = wl_compositor_create_surface(display->compositor); + + if (window->flags & WINDOW_FLAG_USE_VIEWPORT) + window->viewport = wl_scaler_get_viewport(display->scaler, + window->surface); + + if (display->shell) { + window->xdg_surface = + xdg_shell_get_xdg_surface(display->shell, + window->surface); + + assert(window->xdg_surface); + + xdg_surface_add_listener(window->xdg_surface, + &xdg_surface_listener, window); + + xdg_surface_set_title(window->xdg_surface, "simple-damage"); + } else if (display->fshell) { + _wl_fullscreen_shell_present_surface(display->fshell, + window->surface, + _WL_FULLSCREEN_SHELL_PRESENT_METHOD_DEFAULT, + NULL); + } else { + assert(0); + } + + /* Initialise damage to full surface, so the padding gets painted */ + wl_surface_damage(window->surface, 0, 0, INT32_MAX, INT32_MAX); + + return window; +} + +static void +destroy_window(struct window *window) +{ + if (window->callback) + wl_callback_destroy(window->callback); + + if (window->buffers[0].buffer) + wl_buffer_destroy(window->buffers[0].buffer); + if (window->buffers[1].buffer) + wl_buffer_destroy(window->buffers[1].buffer); + + if (window->xdg_surface) + xdg_surface_destroy(window->xdg_surface); + if (window->viewport) + wl_viewport_destroy(window->viewport); + wl_surface_destroy(window->surface); + free(window); +} + +static struct buffer * +window_next_buffer(struct window *window) +{ + struct buffer *buffer; + int ret = 0, bwidth, bheight; + + if (!window->buffers[0].busy) + buffer = &window->buffers[0]; + else if (!window->buffers[1].busy) + buffer = &window->buffers[1]; + else + return NULL; + + switch (window->transform) { + default: + case WL_OUTPUT_TRANSFORM_NORMAL: + case WL_OUTPUT_TRANSFORM_180: + case WL_OUTPUT_TRANSFORM_FLIPPED: + case WL_OUTPUT_TRANSFORM_FLIPPED_180: + bwidth = window->width * window->scale; + bheight = window->height * window->scale; + break; + case WL_OUTPUT_TRANSFORM_90: + case WL_OUTPUT_TRANSFORM_270: + case WL_OUTPUT_TRANSFORM_FLIPPED_90: + case WL_OUTPUT_TRANSFORM_FLIPPED_270: + bwidth = window->height * window->scale; + bheight = window->width * window->scale; + break; + } + + if (!buffer->buffer) { + ret = create_shm_buffer(window->display, buffer, + bwidth, bheight, + WL_SHM_FORMAT_ARGB8888); + + if (ret < 0) + return NULL; + } + + return buffer; +} + +static void +paint_box(uint32_t *pixels, int pitch, int x, int y, int width, int height, + uint32_t color) +{ + int i, j; + + for (j = y; j < y + height; ++j) + for (i = x; i < x + width; ++i) + pixels[i + j * pitch] = color; +} + +static void +paint_circle(uint32_t *pixels, int pitch, float x, float y, int radius, + uint32_t color) +{ + int i, j; + + for (j = y - radius; j <= (int)(y + radius); ++j) + for (i = x - radius; i <= (int)(x + radius); ++i) + if ((j+0.5f-y)*(j+0.5f-y) + (i+0.5f-x)*(i+0.5f-x) <= radius * radius) + pixels[i + j * pitch] = color; +} + +static void +window_get_transformed_ball(struct window *window, float *bx, float *by) +{ + float wx, wy; + + wx = window->ball.x; + wy = window->ball.y; + + switch (window->transform) { + default: + case WL_OUTPUT_TRANSFORM_NORMAL: + *bx = wx; + *by = wy; + break; + case WL_OUTPUT_TRANSFORM_90: + *bx = window->height - wy; + *by = wx; + break; + case WL_OUTPUT_TRANSFORM_180: + *bx = window->width - wx; + *by = window->height - wy; + break; + case WL_OUTPUT_TRANSFORM_270: + *bx = wy; + *by = window->width - wx; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED: + *bx = window->width - wx; + *by = wy; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_90: + *bx = window->height - wy; + *by = window->width - wx; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_180: + *bx = wx; + *by = window->height - wy; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_270: + *bx = wy; + *by = wx; + break; + } + + *bx *= window->scale; + *by *= window->scale; + + if (window->viewport) { + /* We're drawing half-size because of the viewport */ + *bx /= 2; + *by /= 2; + } +} + +static const struct wl_callback_listener frame_listener; + +static void +redraw(void *data, struct wl_callback *callback, uint32_t time) +{ + struct window *window = data; + struct buffer *buffer; + int off_x, off_y, bwidth, bheight, bborder, bpitch, bradius; + uint32_t *buffer_data; + float bx, by; + + buffer = window_next_buffer(window); + if (!buffer) { + fprintf(stderr, + !callback ? "Failed to create the first buffer.\n" : + "Both buffers busy at redraw(). Server bug?\n"); + abort(); + } + + /* Rotate the damage, but keep the even/odd parity so the + * dimensions of the buffers don't change */ + if (window->flags & WINDOW_FLAG_ROTATING_TRANSFORM) + window->transform = (window->transform + 2) % 8; + + switch (window->transform) { + default: + case WL_OUTPUT_TRANSFORM_NORMAL: + case WL_OUTPUT_TRANSFORM_180: + case WL_OUTPUT_TRANSFORM_FLIPPED: + case WL_OUTPUT_TRANSFORM_FLIPPED_180: + bwidth = window->width * window->scale; + bheight = window->height * window->scale; + break; + case WL_OUTPUT_TRANSFORM_90: + case WL_OUTPUT_TRANSFORM_270: + case WL_OUTPUT_TRANSFORM_FLIPPED_90: + case WL_OUTPUT_TRANSFORM_FLIPPED_270: + bwidth = window->height * window->scale; + bheight = window->width * window->scale; + break; + } + + bpitch = bwidth; + + bborder = window->border * window->scale; + bradius = window->ball.radius * window->scale; + + buffer_data = buffer->shm_data; + if (window->viewport) { + /* Fill the whole thing with red to detect viewport errors */ + paint_box(buffer->shm_data, bpitch, 0, 0, bwidth, bheight, + 0xffff0000); + + /* The buffer is the same size. However, we crop it + * and scale it up by a factor of 2 */ + bborder /= 2; + bradius /= 2; + bwidth /= 2; + bheight /= 2; + + /* Offset the drawing region */ + off_x = (window->width / 3) * window->scale; + off_y = (window->height / 5) * window->scale; + switch (window->transform) { + default: + case WL_OUTPUT_TRANSFORM_NORMAL: + buffer_data += off_y * bpitch + off_x; + break; + case WL_OUTPUT_TRANSFORM_90: + buffer_data += off_x * bpitch + (bwidth - off_y); + break; + case WL_OUTPUT_TRANSFORM_180: + buffer_data += (bheight - off_y) * bpitch + + (bwidth - off_x); + break; + case WL_OUTPUT_TRANSFORM_270: + buffer_data += (bheight - off_x) * bpitch + off_y; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED: + buffer_data += off_y * bpitch + (bwidth - off_x); + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_90: + buffer_data += (bheight - off_x) * bpitch + + (bwidth - off_y); + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_180: + buffer_data += (bheight - off_y) * bpitch + off_x; + break; + case WL_OUTPUT_TRANSFORM_FLIPPED_270: + buffer_data += off_x * bpitch + off_y; + break; + } + wl_viewport_set_source(window->viewport, + wl_fixed_from_int(window->width / 3), + wl_fixed_from_int(window->height / 5), + wl_fixed_from_int(window->width / 2), + wl_fixed_from_int(window->height / 2)); + } + + /* Paint the border */ + paint_box(buffer_data, bpitch, 0, 0, bwidth, bborder, 0xffffffff); + paint_box(buffer_data, bpitch, 0, 0, bborder, bheight, 0xffffffff); + paint_box(buffer_data, bpitch, + bwidth - bborder, 0, bborder, bheight, 0xffffffff); + paint_box(buffer_data, bpitch, + 0, bheight - bborder, bwidth, bborder, 0xffffffff); + + /* fill with translucent */ + paint_box(buffer_data, bpitch, bborder, bborder, + bwidth - 2 * bborder, bheight - 2 * bborder, 0x80000000); + + /* Damage where the ball was */ + wl_surface_damage(window->surface, + window->ball.x - window->ball.radius, + window->ball.y - window->ball.radius, + window->ball.radius * 2 + 1, + window->ball.radius * 2 + 1); + + window_advance_game(window, time); + + window_get_transformed_ball(window, &bx, &by); + + /* Paint the ball */ + paint_circle(buffer_data, bpitch, bx, by, bradius, 0xff00ff00); + + if (print_debug) { + printf("Ball now located at (%f, %f)\n", + window->ball.x, window->ball.y); + + printf("Circle painted at (%f, %f), radius %d\n", bx, by, + bradius); + + printf("Buffer damage rectangle: (%d, %d) @ %dx%d\n", + (int)(bx - bradius), (int)(by - bradius), + bradius * 2 + 1, bradius * 2 + 1); + } + + /* Damage where the ball is now */ + wl_surface_damage(window->surface, + window->ball.x - window->ball.radius, + window->ball.y - window->ball.radius, + window->ball.radius * 2 + 1, + window->ball.radius * 2 + 1); + + wl_surface_attach(window->surface, buffer->buffer, 0, 0); + + if (window->display->compositor_version >= 2 && + (window->transform != WL_OUTPUT_TRANSFORM_NORMAL || + window->flags & WINDOW_FLAG_ROTATING_TRANSFORM)) + wl_surface_set_buffer_transform(window->surface, + window->transform); + + if (window->viewport) + wl_viewport_set_destination(window->viewport, + window->width, + window->height); + + if (window->scale != 1) + wl_surface_set_buffer_scale(window->surface, + window->scale); + + if (callback) + wl_callback_destroy(callback); + + window->callback = wl_surface_frame(window->surface); + wl_callback_add_listener(window->callback, &frame_listener, window); + wl_surface_commit(window->surface); + buffer->busy = 1; +} + +static const struct wl_callback_listener frame_listener = { + redraw +}; + +static void +shm_format(void *data, struct wl_shm *wl_shm, uint32_t format) +{ + struct display *d = data; + + d->formats |= (1 << format); +} + +struct wl_shm_listener shm_listener = { + shm_format +}; + +static void +xdg_shell_ping(void *data, struct xdg_shell *shell, uint32_t serial) +{ + xdg_shell_pong(shell, serial); +} + +static const struct xdg_shell_listener xdg_shell_listener = { + xdg_shell_ping, +}; + +#define XDG_VERSION 3 /* The version of xdg-shell that we implement */ +#ifdef static_assert +static_assert(XDG_VERSION == XDG_SHELL_VERSION_CURRENT, + "Interface version doesn't match implementation version"); +#endif + +static void +registry_handle_global(void *data, struct wl_registry *registry, + uint32_t id, const char *interface, uint32_t version) +{ + struct display *d = data; + + if (strcmp(interface, "wl_compositor") == 0) { + if (d->compositor_version > (int)version) { + fprintf(stderr, "Compositor does not support " + "wl_surface version %d\n", d->compositor_version); + exit(1); + } + + if (d->compositor_version < 0) + d->compositor_version = version; + + d->compositor = + wl_registry_bind(registry, + id, &wl_compositor_interface, + d->compositor_version); + } else if (strcmp(interface, "wl_scaler") == 0 && version >= 2) { + d->scaler = wl_registry_bind(registry, + id, &wl_scaler_interface, 2); + } else if (strcmp(interface, "xdg_shell") == 0) { + d->shell = wl_registry_bind(registry, + id, &xdg_shell_interface, 1); + xdg_shell_use_unstable_version(d->shell, XDG_VERSION); + xdg_shell_add_listener(d->shell, &xdg_shell_listener, d); + } else if (strcmp(interface, "_wl_fullscreen_shell") == 0) { + d->fshell = wl_registry_bind(registry, + id, &_wl_fullscreen_shell_interface, 1); + } else if (strcmp(interface, "wl_shm") == 0) { + d->shm = wl_registry_bind(registry, + id, &wl_shm_interface, 1); + wl_shm_add_listener(d->shm, &shm_listener, d); + } +} + +static void +registry_handle_global_remove(void *data, struct wl_registry *registry, + uint32_t name) +{ +} + +static const struct wl_registry_listener registry_listener = { + registry_handle_global, + registry_handle_global_remove +}; + +static struct display * +create_display(int version) +{ + struct display *display; + + display = malloc(sizeof *display); + if (display == NULL) { + fprintf(stderr, "out of memory\n"); + exit(1); + } + display->display = wl_display_connect(NULL); + assert(display->display); + + display->compositor_version = version; + display->formats = 0; + display->registry = wl_display_get_registry(display->display); + wl_registry_add_listener(display->registry, + ®istry_listener, display); + wl_display_roundtrip(display->display); + if (display->shm == NULL) { + fprintf(stderr, "No wl_shm global\n"); + exit(1); + } + + wl_display_roundtrip(display->display); + + if (!(display->formats & (1 << WL_SHM_FORMAT_XRGB8888))) { + fprintf(stderr, "WL_SHM_FORMAT_XRGB32 not available\n"); + exit(1); + } + + return display; +} + +static void +destroy_display(struct display *display) +{ + if (display->shm) + wl_shm_destroy(display->shm); + + if (display->shell) + xdg_shell_destroy(display->shell); + + if (display->fshell) + _wl_fullscreen_shell_release(display->fshell); + + if (display->scaler) + wl_scaler_destroy(display->scaler); + + if (display->compositor) + wl_compositor_destroy(display->compositor); + + wl_registry_destroy(display->registry); + wl_display_flush(display->display); + wl_display_disconnect(display->display); + free(display); +} + +static void +signal_int(int signum) +{ + running = 0; +} + +static void +print_usage(int retval) +{ + printf( + "usage: weston-simple-damage [options]\n\n" + "options:\n" + " -h, --help\t\tPring this help\n" + " --verbose\t\tPrint verbose log information\n" + " --version=VERSION\tVersion of wl_surface to use\n" + " --width=WIDTH\t\tWidth of the window\n" + " --height=HEIGHT\tHeight of the window\n" + " --scale=SCALE\t\tScale factor for the surface\n" + " --transform=TRANSFORM\tTransform for the surface\n" + " --rotating-transform\tUse a different buffer_transform for each frame\n" + " --use-viewport\tUse wl_viewport\n" + ); + + exit(retval); +} + +static int +parse_transform(const char *str, enum wl_output_transform *transform) +{ + int i; + static const struct { + const char *name; + enum wl_output_transform transform; + } names[] = { + { "normal", WL_OUTPUT_TRANSFORM_NORMAL }, + { "90", WL_OUTPUT_TRANSFORM_90 }, + { "180", WL_OUTPUT_TRANSFORM_180 }, + { "270", WL_OUTPUT_TRANSFORM_270 }, + { "flipped", WL_OUTPUT_TRANSFORM_FLIPPED }, + { "flipped-90", WL_OUTPUT_TRANSFORM_FLIPPED_90 }, + { "flipped-180", WL_OUTPUT_TRANSFORM_FLIPPED_180 }, + { "flipped-270", WL_OUTPUT_TRANSFORM_FLIPPED_270 }, + }; + + for (i = 0; i < 8; i++) { + if (strcmp(names[i].name, str) == 0) { + *transform = names[i].transform; + return 1; + } + } + + return 0; +} + +int +main(int argc, char **argv) +{ + struct sigaction sigint; + struct display *display; + struct window *window; + int i, ret = 0; + int version = -1; + int width = 300, height = 200, scale = 1; + enum wl_output_transform transform = WL_OUTPUT_TRANSFORM_NORMAL; + enum window_flags flags = 0; + + for (i = 1; i < argc; ++i) { + if (strcmp(argv[i], "--help") == 0 || + strcmp(argv[i], "-h") == 0) { + print_usage(0); + } else if (sscanf(argv[i], "--version=%d", &version) > 0) { + if (version < 1 || version > 3) { + fprintf(stderr, "Unsupported wl_surface version: %d\n", + version); + return 1; + } + continue; + } else if (strcmp(argv[i], "--verbose") == 0) { + print_debug = 1; + continue; + } else if (sscanf(argv[i], "--width=%d", &width) > 0) { + continue; + } else if (sscanf(argv[i], "--height=%d", &height) > 0) { + continue; + } else if (strncmp(argv[i], "--transform=", 12) == 0 && + parse_transform(argv[i] + 12, &transform) > 0) { + continue; + } else if (strcmp(argv[i], "--rotating-transform") == 0) { + flags |= WINDOW_FLAG_ROTATING_TRANSFORM; + continue; + } else if (sscanf(argv[i], "--scale=%d", &scale) > 0) { + continue; + } else if (strcmp(argv[i], "--use-viewport") == 0) { + flags |= WINDOW_FLAG_USE_VIEWPORT; + continue; + } else { + printf("Invalid option: %s\n", argv[i]); + print_usage(255); + } + } + + display = create_display(version); + + window = create_window(display, width, height, transform, scale, flags); + if (!window) + return 1; + + sigint.sa_handler = signal_int; + sigemptyset(&sigint.sa_mask); + sigint.sa_flags = SA_RESETHAND; + sigaction(SIGINT, &sigint, NULL); + + redraw(window, NULL, 0); + + while (running && ret != -1) + ret = wl_display_dispatch(display->display); + + fprintf(stderr, "simple-shm exiting\n"); + destroy_window(window); + destroy_display(display); + + return 0; +}