weston/tests/weston-test-client-helper.c
Pekka Paalanen 912ea2cb20 tests: add scalar_stat dumps
The new field in struct scalar_stat allows recording all tested values
into a file. This is intended to replace ad hoc dumping code like in
alpha-blending-test.c.

To make it easy to set up, also offer a helper to open a writable file
whose name consists of a custom prefix and test name.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
2022-06-30 09:08:32 +00:00

1928 lines
49 KiB
C

/*
* Copyright © 2012 Intel Corporation
* Copyright © 2015 Samsung Electronics Co., Ltd
* Copyright 2016, 2017 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/mman.h>
#include <cairo.h>
#include "test-config.h"
#include "shared/os-compatibility.h"
#include "shared/string-helpers.h"
#include "shared/xalloc.h"
#include <libweston/zalloc.h>
#include "weston-test-client-helper.h"
#include "image-iter.h"
#define max(a, b) (((a) > (b)) ? (a) : (b))
#define min(a, b) (((a) > (b)) ? (b) : (a))
#define clip(x, a, b) min(max(x, a), b)
int
surface_contains(struct surface *surface, int x, int y)
{
/* test whether a global x,y point is contained in the surface */
int sx = surface->x;
int sy = surface->y;
int sw = surface->width;
int sh = surface->height;
return x >= sx && y >= sy && x < sx + sw && y < sy + sh;
}
static void
frame_callback_handler(void *data, struct wl_callback *callback, uint32_t time)
{
int *done = data;
*done = 1;
wl_callback_destroy(callback);
}
static const struct wl_callback_listener frame_listener = {
frame_callback_handler
};
struct wl_callback *
frame_callback_set(struct wl_surface *surface, int *done)
{
struct wl_callback *callback;
*done = 0;
callback = wl_surface_frame(surface);
wl_callback_add_listener(callback, &frame_listener, done);
return callback;
}
int
frame_callback_wait_nofail(struct client *client, int *done)
{
while (!*done) {
if (wl_display_dispatch(client->wl_display) < 0)
return 0;
}
return 1;
}
void
move_client(struct client *client, int x, int y)
{
struct surface *surface = client->surface;
int done;
client->surface->x = x;
client->surface->y = y;
weston_test_move_surface(client->test->weston_test, surface->wl_surface,
surface->x, surface->y);
/* The attach here is necessary because commit() will call configure
* only on surfaces newly attached, and the one that sets the surface
* position is the configure. */
wl_surface_attach(surface->wl_surface, surface->buffer->proxy, 0, 0);
wl_surface_damage(surface->wl_surface, 0, 0, surface->width,
surface->height);
frame_callback_set(surface->wl_surface, &done);
wl_surface_commit(surface->wl_surface);
frame_callback_wait(client, &done);
}
static void
pointer_handle_enter(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *wl_surface,
wl_fixed_t x, wl_fixed_t y)
{
struct pointer *pointer = data;
if (wl_surface)
pointer->focus = wl_surface_get_user_data(wl_surface);
else
pointer->focus = NULL;
pointer->serial = serial;
pointer->x = wl_fixed_to_int(x);
pointer->y = wl_fixed_to_int(y);
testlog("test-client: got pointer enter %d %d, surface %p\n",
pointer->x, pointer->y, pointer->focus);
}
static void
pointer_handle_leave(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, struct wl_surface *wl_surface)
{
struct pointer *pointer = data;
pointer->serial = serial;
pointer->focus = NULL;
testlog("test-client: got pointer leave, surface %p\n",
wl_surface ? wl_surface_get_user_data(wl_surface) : NULL);
}
static void
pointer_handle_motion(void *data, struct wl_pointer *wl_pointer,
uint32_t time_msec, wl_fixed_t x, wl_fixed_t y)
{
struct pointer *pointer = data;
pointer->x = wl_fixed_to_int(x);
pointer->y = wl_fixed_to_int(y);
pointer->motion_time_msec = time_msec;
pointer->motion_time_timespec = pointer->input_timestamp;
pointer->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got pointer motion %d %d\n",
pointer->x, pointer->y);
}
static void
pointer_handle_button(void *data, struct wl_pointer *wl_pointer,
uint32_t serial, uint32_t time_msec, uint32_t button,
uint32_t state)
{
struct pointer *pointer = data;
pointer->serial = serial;
pointer->button = button;
pointer->state = state;
pointer->button_time_msec = time_msec;
pointer->button_time_timespec = pointer->input_timestamp;
pointer->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got pointer button %u %u\n", button, state);
}
static void
pointer_handle_axis(void *data, struct wl_pointer *wl_pointer,
uint32_t time_msec, uint32_t axis, wl_fixed_t value)
{
struct pointer *pointer = data;
pointer->axis = axis;
pointer->axis_value = wl_fixed_to_double(value);
pointer->axis_time_msec = time_msec;
pointer->axis_time_timespec = pointer->input_timestamp;
pointer->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got pointer axis %u %f\n",
axis, wl_fixed_to_double(value));
}
static void
pointer_handle_frame(void *data, struct wl_pointer *wl_pointer)
{
testlog("test-client: got pointer frame\n");
}
static void
pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
uint32_t source)
{
testlog("test-client: got pointer axis source %u\n", source);
}
static void
pointer_handle_axis_stop(void *data, struct wl_pointer *wl_pointer,
uint32_t time_msec, uint32_t axis)
{
struct pointer *pointer = data;
pointer->axis = axis;
pointer->axis_stop_time_msec = time_msec;
pointer->axis_stop_time_timespec = pointer->input_timestamp;
pointer->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got pointer axis stop %u\n", axis);
}
static void
pointer_handle_axis_discrete(void *data, struct wl_pointer *wl_pointer,
uint32_t axis, int32_t value)
{
testlog("test-client: got pointer axis discrete %u %d\n", axis, value);
}
static const struct wl_pointer_listener pointer_listener = {
pointer_handle_enter,
pointer_handle_leave,
pointer_handle_motion,
pointer_handle_button,
pointer_handle_axis,
pointer_handle_frame,
pointer_handle_axis_source,
pointer_handle_axis_stop,
pointer_handle_axis_discrete,
};
static void
keyboard_handle_keymap(void *data, struct wl_keyboard *wl_keyboard,
uint32_t format, int fd, uint32_t size)
{
close(fd);
testlog("test-client: got keyboard keymap\n");
}
static void
keyboard_handle_enter(void *data, struct wl_keyboard *wl_keyboard,
uint32_t serial, struct wl_surface *wl_surface,
struct wl_array *keys)
{
struct keyboard *keyboard = data;
if (wl_surface)
keyboard->focus = wl_surface_get_user_data(wl_surface);
else
keyboard->focus = NULL;
testlog("test-client: got keyboard enter, surface %p\n",
keyboard->focus);
}
static void
keyboard_handle_leave(void *data, struct wl_keyboard *wl_keyboard,
uint32_t serial, struct wl_surface *wl_surface)
{
struct keyboard *keyboard = data;
keyboard->focus = NULL;
testlog("test-client: got keyboard leave, surface %p\n",
wl_surface ? wl_surface_get_user_data(wl_surface) : NULL);
}
static void
keyboard_handle_key(void *data, struct wl_keyboard *wl_keyboard,
uint32_t serial, uint32_t time_msec, uint32_t key,
uint32_t state)
{
struct keyboard *keyboard = data;
keyboard->key = key;
keyboard->state = state;
keyboard->key_time_msec = time_msec;
keyboard->key_time_timespec = keyboard->input_timestamp;
keyboard->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got keyboard key %u %u\n", key, state);
}
static void
keyboard_handle_modifiers(void *data, struct wl_keyboard *wl_keyboard,
uint32_t serial, uint32_t mods_depressed,
uint32_t mods_latched, uint32_t mods_locked,
uint32_t group)
{
struct keyboard *keyboard = data;
keyboard->mods_depressed = mods_depressed;
keyboard->mods_latched = mods_latched;
keyboard->mods_locked = mods_locked;
keyboard->group = group;
testlog("test-client: got keyboard modifiers %u %u %u %u\n",
mods_depressed, mods_latched, mods_locked, group);
}
static void
keyboard_handle_repeat_info(void *data, struct wl_keyboard *wl_keyboard,
int32_t rate, int32_t delay)
{
struct keyboard *keyboard = data;
keyboard->repeat_info.rate = rate;
keyboard->repeat_info.delay = delay;
testlog("test-client: got keyboard repeat_info %d %d\n", rate, delay);
}
static const struct wl_keyboard_listener keyboard_listener = {
keyboard_handle_keymap,
keyboard_handle_enter,
keyboard_handle_leave,
keyboard_handle_key,
keyboard_handle_modifiers,
keyboard_handle_repeat_info,
};
static void
touch_handle_down(void *data, struct wl_touch *wl_touch,
uint32_t serial, uint32_t time_msec,
struct wl_surface *surface, int32_t id,
wl_fixed_t x_w, wl_fixed_t y_w)
{
struct touch *touch = data;
touch->down_x = wl_fixed_to_int(x_w);
touch->down_y = wl_fixed_to_int(y_w);
touch->id = id;
touch->down_time_msec = time_msec;
touch->down_time_timespec = touch->input_timestamp;
touch->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got touch down %d %d, surf: %p, id: %d\n",
touch->down_x, touch->down_y, surface, id);
}
static void
touch_handle_up(void *data, struct wl_touch *wl_touch,
uint32_t serial, uint32_t time_msec, int32_t id)
{
struct touch *touch = data;
touch->up_id = id;
touch->up_time_msec = time_msec;
touch->up_time_timespec = touch->input_timestamp;
touch->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got touch up, id: %d\n", id);
}
static void
touch_handle_motion(void *data, struct wl_touch *wl_touch,
uint32_t time_msec, int32_t id,
wl_fixed_t x_w, wl_fixed_t y_w)
{
struct touch *touch = data;
touch->x = wl_fixed_to_int(x_w);
touch->y = wl_fixed_to_int(y_w);
touch->motion_time_msec = time_msec;
touch->motion_time_timespec = touch->input_timestamp;
touch->input_timestamp = (struct timespec) { 0 };
testlog("test-client: got touch motion, %d %d, id: %d\n",
touch->x, touch->y, id);
}
static void
touch_handle_frame(void *data, struct wl_touch *wl_touch)
{
struct touch *touch = data;
++touch->frame_no;
testlog("test-client: got touch frame (%d)\n", touch->frame_no);
}
static void
touch_handle_cancel(void *data, struct wl_touch *wl_touch)
{
struct touch *touch = data;
++touch->cancel_no;
testlog("test-client: got touch cancel (%d)\n", touch->cancel_no);
}
static const struct wl_touch_listener touch_listener = {
touch_handle_down,
touch_handle_up,
touch_handle_motion,
touch_handle_frame,
touch_handle_cancel,
};
static void
surface_enter(void *data,
struct wl_surface *wl_surface, struct wl_output *output)
{
struct surface *surface = data;
surface->output = wl_output_get_user_data(output);
testlog("test-client: got surface enter output %p\n", surface->output);
}
static void
surface_leave(void *data,
struct wl_surface *wl_surface, struct wl_output *output)
{
struct surface *surface = data;
surface->output = NULL;
testlog("test-client: got surface leave output %p\n",
wl_output_get_user_data(output));
}
static const struct wl_surface_listener surface_listener = {
surface_enter,
surface_leave
};
static struct buffer *
create_shm_buffer(struct client *client, int width, int height,
pixman_format_code_t format, uint32_t wlfmt)
{
struct wl_shm *shm = client->wl_shm;
struct buffer *buf;
size_t stride_bytes;
struct wl_shm_pool *pool;
int fd;
void *data;
size_t bytes_pp;
assert(width > 0);
assert(height > 0);
buf = xzalloc(sizeof *buf);
bytes_pp = PIXMAN_FORMAT_BPP(format) / 8;
stride_bytes = width * bytes_pp;
/* round up to multiple of 4 bytes for Pixman */
stride_bytes = (stride_bytes + 3) & ~3u;
assert(stride_bytes / bytes_pp >= (unsigned)width);
buf->len = stride_bytes * height;
assert(buf->len / stride_bytes == (unsigned)height);
fd = os_create_anonymous_file(buf->len);
assert(fd >= 0);
data = mmap(NULL, buf->len, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
if (data == MAP_FAILED) {
close(fd);
assert(data != MAP_FAILED);
}
pool = wl_shm_create_pool(shm, fd, buf->len);
buf->proxy = wl_shm_pool_create_buffer(pool, 0, width, height,
stride_bytes, wlfmt);
wl_shm_pool_destroy(pool);
close(fd);
buf->image = pixman_image_create_bits(format, width, height,
data, stride_bytes);
assert(buf->proxy);
assert(buf->image);
return buf;
}
struct buffer *
create_shm_buffer_a8r8g8b8(struct client *client, int width, int height)
{
assert(client->has_argb);
return create_shm_buffer(client, width, height,
PIXMAN_a8r8g8b8, WL_SHM_FORMAT_ARGB8888);
}
void
buffer_destroy(struct buffer *buf)
{
void *pixels;
pixels = pixman_image_get_data(buf->image);
if (buf->proxy) {
wl_buffer_destroy(buf->proxy);
assert(munmap(pixels, buf->len) == 0);
}
assert(pixman_image_unref(buf->image));
free(buf);
}
static void
shm_format(void *data, struct wl_shm *wl_shm, uint32_t format)
{
struct client *client = data;
if (format == WL_SHM_FORMAT_ARGB8888)
client->has_argb = 1;
}
struct wl_shm_listener shm_listener = {
shm_format
};
static void
test_handle_pointer_position(void *data, struct weston_test *weston_test,
wl_fixed_t x, wl_fixed_t y)
{
struct test *test = data;
test->pointer_x = wl_fixed_to_int(x);
test->pointer_y = wl_fixed_to_int(y);
testlog("test-client: got global pointer %d %d\n",
test->pointer_x, test->pointer_y);
}
static void
test_handle_capture_screenshot_done(void *data, struct weston_screenshooter *screenshooter)
{
struct client *client = data;
testlog("Screenshot has been captured\n");
client->buffer_copy_done = true;
}
static const struct weston_screenshooter_listener screenshooter_listener = {
test_handle_capture_screenshot_done
};
static const struct weston_test_listener test_listener = {
test_handle_pointer_position,
};
static void
input_destroy(struct input *inp)
{
if (inp->pointer) {
wl_pointer_release(inp->pointer->wl_pointer);
free(inp->pointer);
}
if (inp->keyboard) {
wl_keyboard_release(inp->keyboard->wl_keyboard);
free(inp->keyboard);
}
if (inp->touch) {
wl_touch_release(inp->touch->wl_touch);
free(inp->touch);
}
wl_list_remove(&inp->link);
wl_seat_release(inp->wl_seat);
free(inp->seat_name);
free(inp);
}
static void
input_update_devices(struct input *input)
{
struct pointer *pointer;
struct keyboard *keyboard;
struct touch *touch;
struct wl_seat *seat = input->wl_seat;
enum wl_seat_capability caps = input->caps;
if ((caps & WL_SEAT_CAPABILITY_POINTER) && !input->pointer) {
pointer = xzalloc(sizeof *pointer);
pointer->wl_pointer = wl_seat_get_pointer(seat);
wl_pointer_set_user_data(pointer->wl_pointer, pointer);
wl_pointer_add_listener(pointer->wl_pointer, &pointer_listener,
pointer);
input->pointer = pointer;
} else if (!(caps & WL_SEAT_CAPABILITY_POINTER) && input->pointer) {
wl_pointer_destroy(input->pointer->wl_pointer);
free(input->pointer);
input->pointer = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_KEYBOARD) && !input->keyboard) {
keyboard = xzalloc(sizeof *keyboard);
keyboard->wl_keyboard = wl_seat_get_keyboard(seat);
wl_keyboard_set_user_data(keyboard->wl_keyboard, keyboard);
wl_keyboard_add_listener(keyboard->wl_keyboard, &keyboard_listener,
keyboard);
input->keyboard = keyboard;
} else if (!(caps & WL_SEAT_CAPABILITY_KEYBOARD) && input->keyboard) {
wl_keyboard_destroy(input->keyboard->wl_keyboard);
free(input->keyboard);
input->keyboard = NULL;
}
if ((caps & WL_SEAT_CAPABILITY_TOUCH) && !input->touch) {
touch = xzalloc(sizeof *touch);
touch->wl_touch = wl_seat_get_touch(seat);
wl_touch_set_user_data(touch->wl_touch, touch);
wl_touch_add_listener(touch->wl_touch, &touch_listener,
touch);
input->touch = touch;
} else if (!(caps & WL_SEAT_CAPABILITY_TOUCH) && input->touch) {
wl_touch_destroy(input->touch->wl_touch);
free(input->touch);
input->touch = NULL;
}
}
static void
seat_handle_capabilities(void *data, struct wl_seat *seat,
enum wl_seat_capability caps)
{
struct input *input = data;
input->caps = caps;
/* we will create/update the devices only with the right (test) seat.
* If we haven't discovered which seat is the test seat, just
* store capabilities and bail out */
if (input->seat_name && strcmp(input->seat_name, "test-seat") == 0)
input_update_devices(input);
testlog("test-client: got seat %p capabilities: %x\n", input, caps);
}
static void
seat_handle_name(void *data, struct wl_seat *seat, const char *name)
{
struct input *input = data;
input->seat_name = strdup(name);
assert(input->seat_name && "No memory");
/* We only update the devices and set client input for the test seat */
if (strcmp(name, "test-seat") == 0) {
assert(!input->client->input &&
"Multiple test seats detected!");
input_update_devices(input);
input->client->input = input;
}
testlog("test-client: got seat %p name: \'%s\'\n", input, name);
}
static const struct wl_seat_listener seat_listener = {
seat_handle_capabilities,
seat_handle_name,
};
static void
output_handle_geometry(void *data,
struct wl_output *wl_output,
int x, int y,
int physical_width,
int physical_height,
int subpixel,
const char *make,
const char *model,
int32_t transform)
{
struct output *output = data;
output->x = x;
output->y = y;
}
static void
output_handle_mode(void *data,
struct wl_output *wl_output,
uint32_t flags,
int width,
int height,
int refresh)
{
struct output *output = data;
if (flags & WL_OUTPUT_MODE_CURRENT) {
output->width = width;
output->height = height;
}
}
static void
output_handle_scale(void *data,
struct wl_output *wl_output,
int scale)
{
struct output *output = data;
output->scale = scale;
}
static void
output_handle_done(void *data,
struct wl_output *wl_output)
{
struct output *output = data;
output->initialized = 1;
}
static const struct wl_output_listener output_listener = {
output_handle_geometry,
output_handle_mode,
output_handle_done,
output_handle_scale,
};
static void
output_destroy(struct output *output)
{
assert(wl_proxy_get_version((struct wl_proxy *)output->wl_output) >= 3);
wl_output_release(output->wl_output);
wl_list_remove(&output->link);
free(output);
}
static void
handle_global(void *data, struct wl_registry *registry,
uint32_t id, const char *interface, uint32_t version)
{
struct client *client = data;
struct output *output;
struct test *test;
struct global *global;
struct input *input;
global = xzalloc(sizeof *global);
global->name = id;
global->interface = strdup(interface);
assert(interface);
global->version = version;
wl_list_insert(client->global_list.prev, &global->link);
/* We deliberately bind all globals with the maximum (advertised)
* version, because this test suite must be kept up-to-date with
* Weston. We must always implement at least the version advertised
* by Weston. This is not ok for normal clients, but it is ok in
* this test suite.
*/
if (strcmp(interface, "wl_compositor") == 0) {
client->wl_compositor =
wl_registry_bind(registry, id,
&wl_compositor_interface, version);
} else if (strcmp(interface, "wl_seat") == 0) {
input = xzalloc(sizeof *input);
input->client = client;
input->global_name = global->name;
input->wl_seat =
wl_registry_bind(registry, id,
&wl_seat_interface, version);
wl_seat_add_listener(input->wl_seat, &seat_listener, input);
wl_list_insert(&client->inputs, &input->link);
} else if (strcmp(interface, "wl_shm") == 0) {
client->wl_shm =
wl_registry_bind(registry, id,
&wl_shm_interface, version);
wl_shm_add_listener(client->wl_shm, &shm_listener, client);
} else if (strcmp(interface, "wl_output") == 0) {
output = xzalloc(sizeof *output);
output->wl_output =
wl_registry_bind(registry, id,
&wl_output_interface, version);
wl_output_add_listener(output->wl_output,
&output_listener, output);
wl_list_insert(&client->output_list, &output->link);
client->output = output;
} else if (strcmp(interface, "weston_test") == 0) {
test = xzalloc(sizeof *test);
test->weston_test =
wl_registry_bind(registry, id,
&weston_test_interface, version);
weston_test_add_listener(test->weston_test, &test_listener, test);
client->test = test;
} else if (strcmp(interface, "weston_screenshooter") == 0) {
client->screenshooter =
wl_registry_bind(registry, id,
&weston_screenshooter_interface, 1);
weston_screenshooter_add_listener(client->screenshooter,
&screenshooter_listener, client);
}
}
static struct global *
client_find_global_with_name(struct client *client, uint32_t name)
{
struct global *global;
wl_list_for_each(global, &client->global_list, link) {
if (global->name == name)
return global;
}
return NULL;
}
static struct input *
client_find_input_with_name(struct client *client, uint32_t name)
{
struct input *input;
wl_list_for_each(input, &client->inputs, link) {
if (input->global_name == name)
return input;
}
return NULL;
}
static void
global_destroy(struct global *global)
{
wl_list_remove(&global->link);
free(global->interface);
free(global);
}
static void
handle_global_remove(void *data, struct wl_registry *registry, uint32_t name)
{
struct client *client = data;
struct global *global;
struct input *input;
global = client_find_global_with_name(client, name);
assert(global && "Request to remove unknown global");
if (strcmp(global->interface, "wl_seat") == 0) {
input = client_find_input_with_name(client, name);
if (input) {
if (client->input == input)
client->input = NULL;
input_destroy(input);
}
}
/* XXX: handle wl_output */
global_destroy(global);
}
static const struct wl_registry_listener registry_listener = {
handle_global,
handle_global_remove,
};
void
expect_protocol_error(struct client *client,
const struct wl_interface *intf,
uint32_t code)
{
int err;
uint32_t errcode, failed = 0;
const struct wl_interface *interface;
unsigned int id;
/* if the error has not come yet, make it happen */
wl_display_roundtrip(client->wl_display);
err = wl_display_get_error(client->wl_display);
assert(err && "Expected protocol error but nothing came");
assert(err == EPROTO && "Expected protocol error but got local error");
errcode = wl_display_get_protocol_error(client->wl_display,
&interface, &id);
/* check error */
if (errcode != code) {
testlog("Should get error code %d but got %d\n", code, errcode);
failed = 1;
}
/* this should be definitely set */
assert(interface);
if (strcmp(intf->name, interface->name) != 0) {
testlog("Should get interface '%s' but got '%s'\n",
intf->name, interface->name);
failed = 1;
}
if (failed) {
testlog("Expected other protocol error\n");
abort();
}
/* all OK */
testlog("Got expected protocol error on '%s' (object id: %d) "
"with code %d\n", interface->name, id, errcode);
client->errored_ok = true;
}
static void
log_handler(const char *fmt, va_list args)
{
fprintf(stderr, "libwayland: ");
vfprintf(stderr, fmt, args);
}
struct client *
create_client(void)
{
struct client *client;
wl_log_set_handler_client(log_handler);
/* connect to display */
client = xzalloc(sizeof *client);
client->wl_display = wl_display_connect(NULL);
assert(client->wl_display);
wl_list_init(&client->global_list);
wl_list_init(&client->inputs);
wl_list_init(&client->output_list);
/* setup registry so we can bind to interfaces */
client->wl_registry = wl_display_get_registry(client->wl_display);
wl_registry_add_listener(client->wl_registry, &registry_listener,
client);
/* this roundtrip makes sure we have all globals and we bound to them */
client_roundtrip(client);
/* this roundtrip makes sure we got all wl_shm.format and wl_seat.*
* events */
client_roundtrip(client);
/* must have WL_SHM_FORMAT_ARGB32 */
assert(client->has_argb);
/* must have weston_test interface */
assert(client->test);
/* must have an output */
assert(client->output);
/* the output must be initialized */
assert(client->output->initialized == 1);
/* must have seat set */
assert(client->input);
return client;
}
struct surface *
create_test_surface(struct client *client)
{
struct surface *surface;
surface = xzalloc(sizeof *surface);
surface->client = client;
surface->wl_surface =
wl_compositor_create_surface(client->wl_compositor);
assert(surface->wl_surface);
wl_surface_add_listener(surface->wl_surface, &surface_listener,
surface);
wl_surface_set_user_data(surface->wl_surface, surface);
return surface;
}
void
surface_destroy(struct surface *surface)
{
if (surface->wl_surface)
wl_surface_destroy(surface->wl_surface);
if (surface->buffer)
buffer_destroy(surface->buffer);
free(surface);
}
void
surface_set_opaque_rect(struct surface *surface, const struct rectangle *rect)
{
struct wl_region *region;
region = wl_compositor_create_region(surface->client->wl_compositor);
wl_region_add(region, rect->x, rect->y, rect->width, rect->height);
wl_surface_set_opaque_region(surface->wl_surface, region);
wl_region_destroy(region);
}
struct client *
create_client_and_test_surface(int x, int y, int width, int height)
{
struct client *client;
struct surface *surface;
pixman_color_t color = { 16384, 16384, 16384, 16384 }; /* uint16_t */
pixman_image_t *solid;
client = create_client();
/* initialize the client surface */
surface = create_test_surface(client);
client->surface = surface;
surface->width = width;
surface->height = height;
surface->buffer = create_shm_buffer_a8r8g8b8(client, width, height);
solid = pixman_image_create_solid_fill(&color);
pixman_image_composite32(PIXMAN_OP_SRC,
solid, /* src */
NULL, /* mask */
surface->buffer->image, /* dst */
0, 0, /* src x,y */
0, 0, /* mask x,y */
0, 0, /* dst x,y */
width, height);
pixman_image_unref(solid);
move_client(client, x, y);
return client;
}
void
client_destroy(struct client *client)
{
int ret;
if (client->surface)
surface_destroy(client->surface);
while (!wl_list_empty(&client->inputs)) {
input_destroy(container_of(client->inputs.next,
struct input, link));
}
while (!wl_list_empty(&client->output_list)) {
output_destroy(container_of(client->output_list.next,
struct output, link));
}
while (!wl_list_empty(&client->global_list)) {
global_destroy(container_of(client->global_list.next,
struct global, link));
}
if (client->test) {
weston_test_destroy(client->test->weston_test);
free(client->test);
}
if (client->screenshooter)
weston_screenshooter_destroy(client->screenshooter);
if (client->wl_shm)
wl_shm_destroy(client->wl_shm);
if (client->wl_compositor)
wl_compositor_destroy(client->wl_compositor);
if (client->wl_registry)
wl_registry_destroy(client->wl_registry);
if (client->wl_display) {
ret = wl_display_roundtrip(client->wl_display);
assert(client->errored_ok || ret >= 0);
wl_display_disconnect(client->wl_display);
}
free(client);
}
static const char*
output_path(void)
{
char *path = getenv("WESTON_TEST_OUTPUT_PATH");
if (!path)
return ".";
return path;
}
char*
screenshot_output_filename(const char *basename, uint32_t seq)
{
char *filename;
if (asprintf(&filename, "%s/%s-%02d.png",
output_path(), basename, seq) < 0)
return NULL;
return filename;
}
static const char*
reference_path(void)
{
char *path = getenv("WESTON_TEST_REFERENCE_PATH");
if (!path)
return WESTON_TEST_REFERENCE_PATH;
return path;
}
char*
screenshot_reference_filename(const char *basename, uint32_t seq)
{
char *filename;
if (asprintf(&filename, "%s/%s-%02d.png",
reference_path(), basename, seq) < 0)
return NULL;
return filename;
}
char *
image_filename(const char *basename)
{
char *filename;
if (asprintf(&filename, "%s/%s.png", reference_path(), basename) < 0)
assert(0);
return filename;
}
/** Open a writable file
*
* \param suffix Custom file name suffix.
* \return FILE pointer, or NULL on failure.
*
* The file name consists of output path, test name, and the given suffix.
* If environment variable WESTON_TEST_OUTPUT_PATH is set, it is used as the
* directory path, otherwise the current directory is used.
*
* The file will be writable. If it exists, it is truncated, otherwise it is
* created. Failures are logged.
*/
FILE *
fopen_dump_file(const char *suffix)
{
char *fname;
FILE *fp;
str_printf(&fname, "%s/%s-%s.txt", output_path(),
get_test_name(), suffix);
fp = fopen(fname, "w");
if (!fp) {
testlog("Error: failed to open file '%s' for writing: %s\n",
fname, strerror(errno));
}
free(fname);
return fp;
}
struct format_map_entry {
cairo_format_t cairo;
pixman_format_code_t pixman;
};
static const struct format_map_entry format_map[] = {
{ CAIRO_FORMAT_ARGB32, PIXMAN_a8r8g8b8 },
{ CAIRO_FORMAT_RGB24, PIXMAN_x8r8g8b8 },
{ CAIRO_FORMAT_A8, PIXMAN_a8 },
{ CAIRO_FORMAT_RGB16_565, PIXMAN_r5g6b5 },
};
static pixman_format_code_t
format_cairo2pixman(cairo_format_t fmt)
{
unsigned i;
for (i = 0; i < ARRAY_LENGTH(format_map); i++)
if (format_map[i].cairo == fmt)
return format_map[i].pixman;
assert(0 && "unknown Cairo pixel format");
}
static cairo_format_t
format_pixman2cairo(pixman_format_code_t fmt)
{
unsigned i;
for (i = 0; i < ARRAY_LENGTH(format_map); i++)
if (format_map[i].pixman == fmt)
return format_map[i].cairo;
assert(0 && "unknown Pixman pixel format");
}
/**
* Validate range
*
* \param r Range to validate or NULL.
* \return The given range, or {0, 0} for NULL.
*
* Will abort if range is invalid, that is a > b.
*/
static struct range
range_get(const struct range *r)
{
if (!r)
return (struct range){ 0, 0 };
assert(r->a <= r->b);
return *r;
}
/**
* Compute the ROI for image comparisons
*
* \param ih_a A header for an image.
* \param ih_b A header for another image.
* \param clip_rect Explicit ROI, or NULL for using the whole
* image area.
*
* \return The region of interest (ROI) that is guaranteed to be inside both
* images.
*
* If clip_rect is given, it must fall inside of both images.
* If clip_rect is NULL, the images must be of the same size.
* If any precondition is violated, this function aborts with an error.
*
* The ROI is given as pixman_box32_t, where x2,y2 are non-inclusive.
*/
static pixman_box32_t
image_check_get_roi(const struct image_header *ih_a,
const struct image_header *ih_b,
const struct rectangle *clip_rect)
{
pixman_box32_t box;
if (clip_rect) {
box.x1 = clip_rect->x;
box.y1 = clip_rect->y;
box.x2 = clip_rect->x + clip_rect->width;
box.y2 = clip_rect->y + clip_rect->height;
} else {
box.x1 = 0;
box.y1 = 0;
box.x2 = max(ih_a->width, ih_b->width);
box.y2 = max(ih_a->height, ih_b->height);
}
assert(box.x1 >= 0);
assert(box.y1 >= 0);
assert(box.x2 > box.x1);
assert(box.y2 > box.y1);
assert(box.x2 <= ih_a->width);
assert(box.x2 <= ih_b->width);
assert(box.y2 <= ih_a->height);
assert(box.y2 <= ih_b->height);
return box;
}
struct pixel_diff_stat {
struct pixel_diff_stat_channel {
int min_diff;
int max_diff;
} ch[4];
};
static void
testlog_pixel_diff_stat(const struct pixel_diff_stat *stat)
{
int i;
testlog("Image difference statistics:\n");
for (i = 0; i < 4; i++) {
testlog("\tch %d: [%d, %d]\n",
i, stat->ch[i].min_diff, stat->ch[i].max_diff);
}
}
static bool
fuzzy_match_pixels(uint32_t pix_a, uint32_t pix_b,
const struct range *fuzz,
struct pixel_diff_stat *stat)
{
bool ret = true;
int shift;
int i;
for (shift = 0, i = 0; i < 4; shift += 8, i++) {
int val_a = (pix_a >> shift) & 0xffu;
int val_b = (pix_b >> shift) & 0xffu;
int d = val_b - val_a;
stat->ch[i].min_diff = min(stat->ch[i].min_diff, d);
stat->ch[i].max_diff = max(stat->ch[i].max_diff, d);
if (d < fuzz->a || d > fuzz->b)
ret = false;
}
return ret;
}
/**
* Test if a given region within two images are pixel-identical
*
* Returns true if the two images pixel-wise identical, and false otherwise.
*
* \param img_a First image.
* \param img_b Second image.
* \param clip_rect The region of interest, or NULL for comparing the whole
* images.
* \param prec Per-channel allowed difference, or NULL for identical match
* required.
*
* This function hard-fails if clip_rect is not inside both images. If clip_rect
* is given, the images do not have to match in size, otherwise size mismatch
* will be a hard failure.
*
* The per-pixel, per-channel difference is computed as img_b - img_a which is
* required to be in the range [prec->a, prec->b] inclusive. The difference is
* signed. All four channels are compared the same way, without any special
* meaning on alpha channel.
*/
bool
check_images_match(pixman_image_t *img_a, pixman_image_t *img_b,
const struct rectangle *clip_rect, const struct range *prec)
{
struct range fuzz = range_get(prec);
struct pixel_diff_stat diffstat = {};
struct image_header ih_a = image_header_from(img_a);
struct image_header ih_b = image_header_from(img_b);
pixman_box32_t box;
int x, y;
uint32_t *pix_a;
uint32_t *pix_b;
box = image_check_get_roi(&ih_a, &ih_b, clip_rect);
for (y = box.y1; y < box.y2; y++) {
pix_a = image_header_get_row_u32(&ih_a, y) + box.x1;
pix_b = image_header_get_row_u32(&ih_b, y) + box.x1;
for (x = box.x1; x < box.x2; x++) {
if (!fuzzy_match_pixels(*pix_a, *pix_b,
&fuzz, &diffstat))
return false;
pix_a++;
pix_b++;
}
}
return true;
}
/**
* Tint a color
*
* \param src Source pixel as x8r8g8b8.
* \param add The tint as x8r8g8b8, x8 must be zero; r8, g8 and b8 must be
* no greater than 0xc0 to avoid overflow to another channel.
* \return The tinted pixel color as x8r8g8b8, x8 guaranteed to be 0xff.
*
* The source pixel RGB values are divided by 4, and then the tint is added.
* To achieve colors outside of the range of src, a tint color channel must be
* at least 0x40. (0xff / 4 = 0x3f, 0xff - 0x3f = 0xc0)
*/
static uint32_t
tint(uint32_t src, uint32_t add)
{
uint32_t v;
v = ((src & 0xfcfcfcfc) >> 2) | 0xff000000;
return v + add;
}
/**
* Create a visualization of image differences.
*
* \param img_a First image, which is used as the basis for the output.
* \param img_b Second image.
* \param clip_rect The region of interest, or NULL for comparing the whole
* images.
* \param prec Per-channel allowed difference, or NULL for identical match
* required.
* \return A new image with the differences highlighted.
*
* Regions outside of the region of interest are shaded with black, matching
* pixels are shaded with green, and differing pixels are shaded with
* bright red.
*
* This function hard-fails if clip_rect is not inside both images. If clip_rect
* is given, the images do not have to match in size, otherwise size mismatch
* will be a hard failure.
*
* The per-pixel, per-channel difference is computed as img_b - img_a which is
* required to be in the range [prec->a, prec->b] inclusive. The difference is
* signed. All four channels are compared the same way, without any special
* meaning on alpha channel.
*/
pixman_image_t *
visualize_image_difference(pixman_image_t *img_a, pixman_image_t *img_b,
const struct rectangle *clip_rect,
const struct range *prec)
{
struct range fuzz = range_get(prec);
struct pixel_diff_stat diffstat = {};
pixman_image_t *diffimg;
pixman_image_t *shade;
struct image_header ih_a = image_header_from(img_a);
struct image_header ih_b = image_header_from(img_b);
struct image_header ih_d;
pixman_box32_t box;
int x, y;
uint32_t *pix_a;
uint32_t *pix_b;
uint32_t *pix_d;
pixman_color_t shade_color = { 0, 0, 0, 32768 };
box = image_check_get_roi(&ih_a, &ih_b, clip_rect);
diffimg = pixman_image_create_bits_no_clear(PIXMAN_x8r8g8b8,
ih_a.width, ih_a.height,
NULL, 0);
ih_d = image_header_from(diffimg);
/* Fill diffimg with a black-shaded copy of img_a, and then fill
* the clip_rect area with original img_a.
*/
shade = pixman_image_create_solid_fill(&shade_color);
pixman_image_composite32(PIXMAN_OP_SRC, img_a, shade, diffimg,
0, 0, 0, 0, 0, 0, ih_a.width, ih_a.height);
pixman_image_unref(shade);
pixman_image_composite32(PIXMAN_OP_SRC, img_a, NULL, diffimg,
box.x1, box.y1, 0, 0, box.x1, box.y1,
box.x2 - box.x1, box.y2 - box.y1);
for (y = box.y1; y < box.y2; y++) {
pix_a = image_header_get_row_u32(&ih_a, y) + box.x1;
pix_b = image_header_get_row_u32(&ih_b, y) + box.x1;
pix_d = image_header_get_row_u32(&ih_d, y) + box.x1;
for (x = box.x1; x < box.x2; x++) {
if (fuzzy_match_pixels(*pix_a, *pix_b,
&fuzz, &diffstat))
*pix_d = tint(*pix_d, 0x00008000); /* green */
else
*pix_d = tint(*pix_d, 0x00c00000); /* red */
pix_a++;
pix_b++;
pix_d++;
}
}
testlog_pixel_diff_stat(&diffstat);
return diffimg;
}
/**
* Write an image into a PNG file.
*
* \param image The image.
* \param fname The name and path for the file.
*
* \returns true if successfully saved file; false otherwise.
*
* \note Only image formats directly supported by Cairo are accepted, not all
* Pixman formats.
*/
bool
write_image_as_png(pixman_image_t *image, const char *fname)
{
cairo_surface_t *cairo_surface;
cairo_status_t status;
struct image_header ih = image_header_from(image);
cairo_format_t fmt = format_pixman2cairo(ih.pixman_format);
cairo_surface = cairo_image_surface_create_for_data(ih.data, fmt,
ih.width, ih.height,
ih.stride_bytes);
status = cairo_surface_write_to_png(cairo_surface, fname);
if (status != CAIRO_STATUS_SUCCESS) {
testlog("Failed to save image '%s': %s\n", fname,
cairo_status_to_string(status));
return false;
}
cairo_surface_destroy(cairo_surface);
return true;
}
static pixman_image_t *
image_convert_to_a8r8g8b8(pixman_image_t *image)
{
pixman_image_t *ret;
struct image_header ih = image_header_from(image);
if (ih.pixman_format == PIXMAN_a8r8g8b8)
return pixman_image_ref(image);
ret = pixman_image_create_bits_no_clear(PIXMAN_a8r8g8b8,
ih.width, ih.height, NULL, 0);
assert(ret);
pixman_image_composite32(PIXMAN_OP_SRC, image, NULL, ret,
0, 0, 0, 0, 0, 0, ih.width, ih.height);
return ret;
}
static void
destroy_cairo_surface(pixman_image_t *image, void *data)
{
cairo_surface_t *surface = data;
cairo_surface_destroy(surface);
}
/**
* Load an image from a PNG file
*
* Reads a PNG image from disk using the given filename (and path)
* and returns as a Pixman image. Use pixman_image_unref() to free it.
*
* The returned image is always in PIXMAN_a8r8g8b8 format.
*
* @returns Pixman image, or NULL in case of error.
*/
pixman_image_t *
load_image_from_png(const char *fname)
{
pixman_image_t *image;
pixman_image_t *converted;
cairo_format_t cairo_fmt;
pixman_format_code_t pixman_fmt;
cairo_surface_t *reference_cairo_surface;
cairo_status_t status;
int width;
int height;
int stride;
void *data;
reference_cairo_surface = cairo_image_surface_create_from_png(fname);
cairo_surface_flush(reference_cairo_surface);
status = cairo_surface_status(reference_cairo_surface);
if (status != CAIRO_STATUS_SUCCESS) {
testlog("Could not open %s: %s\n", fname,
cairo_status_to_string(status));
cairo_surface_destroy(reference_cairo_surface);
return NULL;
}
cairo_fmt = cairo_image_surface_get_format(reference_cairo_surface);
pixman_fmt = format_cairo2pixman(cairo_fmt);
width = cairo_image_surface_get_width(reference_cairo_surface);
height = cairo_image_surface_get_height(reference_cairo_surface);
stride = cairo_image_surface_get_stride(reference_cairo_surface);
data = cairo_image_surface_get_data(reference_cairo_surface);
/* The Cairo surface will own the data, so we keep it around. */
image = pixman_image_create_bits_no_clear(pixman_fmt,
width, height, data, stride);
assert(image);
pixman_image_set_destroy_function(image, destroy_cairo_surface,
reference_cairo_surface);
converted = image_convert_to_a8r8g8b8(image);
pixman_image_unref(image);
return converted;
}
/**
* Take screenshot of a single output
*
* Requests a screenshot from the server of the output that the
* client appears on. This implies that the compositor goes through an output
* repaint to provide the screenshot before this function returns. This
* function is therefore both a server roundtrip and a wait for a repaint.
*
* @returns A new buffer object, that should be freed with buffer_destroy().
*/
struct buffer *
capture_screenshot_of_output(struct client *client)
{
struct buffer *buffer;
assert(client->screenshooter);
buffer = create_shm_buffer_a8r8g8b8(client,
client->output->width,
client->output->height);
client->buffer_copy_done = false;
weston_screenshooter_take_shot(client->screenshooter,
client->output->wl_output,
buffer->proxy);
while (client->buffer_copy_done == false)
assert(wl_display_dispatch(client->wl_display) >= 0);
/* FIXME: Document somewhere the orientation the screenshot is taken
* and how the clip coords are interpreted, in case of scaling/transform.
* If we're using read_pixels() just make sure it is documented somewhere.
* Protocol docs in the XML, comparison function docs in Doxygen style.
*/
return buffer;
}
static void
write_visual_diff(pixman_image_t *ref_image,
struct buffer *shot,
const struct rectangle *clip,
const char *test_name,
int seq_no,
const struct range *fuzz)
{
char *fname;
char *ext_test_name;
pixman_image_t *diff;
int ret;
ret = asprintf(&ext_test_name, "%s-diff", test_name);
assert(ret >= 0);
fname = screenshot_output_filename(ext_test_name, seq_no);
diff = visualize_image_difference(ref_image, shot->image, clip, fuzz);
write_image_as_png(diff, fname);
pixman_image_unref(diff);
free(fname);
free(ext_test_name);
}
/**
* Verify image contents
*
* Compares the contents of the given shot to the given reference
* image over the given clip rectangle, reports whether they match to the
* test log, and if they do not match writes a visual diff into a PNG file
* and the screenshot into another PNG file named with get_test_name() and
* seq_no.
*
* The shot image size and the reference image size must both contain
* the clip rectangle.
*
* This function uses the pixel value allowed fuzz appropriate for GL-renderer
* with 8 bits per channel data.
*
* \param shot The image to be verified, usually a screenshot.
* \param ref_image The reference image file basename, without sequence number
* and .png suffix.
* \param ref_seq_no The reference image sequence number.
* \param clip The region of interest, or NULL for comparing the whole
* images.
* \param seq_no Test sequence number, for writing output files.
* \return True if the shot matches the reference image, false otherwise.
*
* For bootstrapping, ref_image can be NULL or the file can be missing.
* In that case the screenshot file is written but no comparison is performed,
* and false is returned.
*
* \sa verify_screen_content
*/
bool
verify_image(struct buffer *shot,
const char *ref_image,
int ref_seq_no,
const struct rectangle *clip,
int seq_no)
{
const char *test_name = get_test_name();
const struct range gl_fuzz = { -3, 4 };
pixman_image_t *ref = NULL;
char *ref_fname = NULL;
char *shot_fname;
bool match = false;
shot_fname = screenshot_output_filename(test_name, seq_no);
if (ref_image) {
ref_fname = screenshot_reference_filename(ref_image, ref_seq_no);
ref = load_image_from_png(ref_fname);
}
if (ref) {
match = check_images_match(ref, shot->image, clip, &gl_fuzz);
testlog("Verify reference image %s vs. shot %s: %s\n",
ref_fname, shot_fname, match ? "PASS" : "FAIL");
if (!match) {
write_visual_diff(ref, shot, clip,
test_name, seq_no, &gl_fuzz);
}
pixman_image_unref(ref);
} else {
testlog("No reference image, shot %s: FAIL\n", shot_fname);
}
if (!match)
write_image_as_png(shot->image, shot_fname);
free(ref_fname);
free(shot_fname);
return match;
}
/**
* Take a screenshot and verify its contents
*
* Takes a screenshot and calls verify_image() with it.
*
* \param client The client, for connecting to the compositor.
* \param ref_image See verify_image().
* \param ref_seq_no See verify_image().
* \param clip See verify_image().
* \param seq_no See verify_image().
* \return True if the screen contents matches the reference image,
* false otherwise.
*/
bool
verify_screen_content(struct client *client,
const char *ref_image,
int ref_seq_no,
const struct rectangle *clip,
int seq_no)
{
struct buffer *shot;
bool match;
shot = capture_screenshot_of_output(client);
assert(shot);
match = verify_image(shot, ref_image, ref_seq_no, clip, seq_no);
buffer_destroy(shot);
return match;
}
/**
* Create a wl_buffer from a PNG file
*
* Loads the named PNG file from the directory of reference images,
* creates a wl_buffer with scale times the image dimensions in pixels,
* and copies the image content into the buffer using nearest-neighbor filter.
*
* \param client The client, for the Wayland connection.
* \param basename The PNG file name without .png suffix.
* \param scale Upscaling factor >= 1.
*/
struct buffer *
client_buffer_from_image_file(struct client *client,
const char *basename,
int scale)
{
struct buffer *buf;
char *fname;
pixman_image_t *img;
int buf_w, buf_h;
pixman_transform_t scaling;
assert(scale >= 1);
fname = image_filename(basename);
img = load_image_from_png(fname);
free(fname);
assert(img);
buf_w = scale * pixman_image_get_width(img);
buf_h = scale * pixman_image_get_height(img);
buf = create_shm_buffer_a8r8g8b8(client, buf_w, buf_h);
pixman_transform_init_scale(&scaling,
pixman_fixed_1 / scale,
pixman_fixed_1 / scale);
pixman_image_set_transform(img, &scaling);
pixman_image_set_filter(img, PIXMAN_FILTER_NEAREST, NULL, 0);
pixman_image_composite32(PIXMAN_OP_SRC,
img, /* src */
NULL, /* mask */
buf->image, /* dst */
0, 0, /* src x,y */
0, 0, /* mask x,y */
0, 0, /* dst x,y */
buf_w, buf_h);
pixman_image_unref(img);
return buf;
}
/**
* Bind to a singleton global in wl_registry
*
* \param client Client whose registry and globals to use.
* \param iface The Wayland interface to look for.
* \param version The version to bind the interface with.
* \return A struct wl_proxy, which you need to cast to the proper type.
*
* Asserts that the global being searched for is a singleton and is found.
*
* Binds with the exact version given, does not take compositor interface
* version into account.
*/
void *
bind_to_singleton_global(struct client *client,
const struct wl_interface *iface,
int version)
{
struct global *tmp;
struct global *g = NULL;
struct wl_proxy *proxy;
wl_list_for_each(tmp, &client->global_list, link) {
if (strcmp(tmp->interface, iface->name))
continue;
assert(!g && "multiple singleton objects");
g = tmp;
}
assert(g && "singleton not found");
proxy = wl_registry_bind(client->wl_registry, g->name, iface, version);
assert(proxy);
return proxy;
}
/**
* Create a wp_viewport for the client surface
*
* \param client The client->surface to use.
* \return A fresh viewport object.
*/
struct wp_viewport *
client_create_viewport(struct client *client)
{
struct wp_viewporter *viewporter;
struct wp_viewport *viewport;
viewporter = bind_to_singleton_global(client,
&wp_viewporter_interface, 1);
viewport = wp_viewporter_get_viewport(viewporter,
client->surface->wl_surface);
assert(viewport);
wp_viewporter_destroy(viewporter);
return viewport;
}
/**
* Fill the image with the given color
*
* \param image The image to write to.
* \param color The color to use.
*/
void
fill_image_with_color(pixman_image_t *image, const pixman_color_t *color)
{
pixman_image_t *solid;
int width;
int height;
width = pixman_image_get_width(image);
height = pixman_image_get_height(image);
solid = pixman_image_create_solid_fill(color);
pixman_image_composite32(PIXMAN_OP_SRC,
solid, /* src */
NULL, /* mask */
image, /* dst */
0, 0, /* src x,y */
0, 0, /* mask x,y */
0, 0, /* dst x,y */
width, height);
pixman_image_unref(solid);
}
/**
* Convert 8-bit RGB to opaque Pixman color
*
* \param tmp Pixman color struct to fill in.
* \param r Red value, 0 - 255.
* \param g Green value, 0 - 255.
* \param b Blue value, 0 - 255.
* \return tmp
*/
pixman_color_t *
color_rgb888(pixman_color_t *tmp, uint8_t r, uint8_t g, uint8_t b)
{
tmp->alpha = 65535;
tmp->red = (r << 8) + r;
tmp->green = (g << 8) + g;
tmp->blue = (b << 8) + b;
return tmp;
}