weston/tests/weston-test-client-helper.c
Emilio Pozuelo Monfort 5c3f3575d5 tests: add a create_test_surface function
This doesn't attach a buffer to the surface. This is needed for the
next commit, where we have a test case with a surface that doesn't
have a buffer attached.

Signed-off-by: Emilio Pozuelo Monfort <emilio.pozuelo@collabora.co.uk>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
2017-12-04 21:58:00 +00:00

1385 lines
34 KiB
C

/*
* Copyright © 2012 Intel Corporation
*
* 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 "shared/os-compatibility.h"
#include "shared/xalloc.h"
#include "shared/zalloc.h"
#include "weston-test-client-helper.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->x = wl_fixed_to_int(x);
pointer->y = wl_fixed_to_int(y);
fprintf(stderr, "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->focus = NULL;
fprintf(stderr, "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, 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);
fprintf(stderr, "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, uint32_t button,
uint32_t state)
{
struct pointer *pointer = data;
pointer->button = button;
pointer->state = state;
fprintf(stderr, "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, uint32_t axis, wl_fixed_t value)
{
fprintf(stderr, "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)
{
fprintf(stderr, "test-client: got pointer frame\n");
}
static void
pointer_handle_axis_source(void *data, struct wl_pointer *wl_pointer,
uint32_t source)
{
fprintf(stderr, "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, uint32_t axis)
{
fprintf(stderr, "test-client: got pointer axis stop\n");
}
static void
pointer_handle_axis_discrete(void *data, struct wl_pointer *wl_pointer,
uint32_t axis, int32_t value)
{
fprintf(stderr, "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);
fprintf(stderr, "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;
fprintf(stderr, "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;
fprintf(stderr, "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, uint32_t key,
uint32_t state)
{
struct keyboard *keyboard = data;
keyboard->key = key;
keyboard->state = state;
fprintf(stderr, "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;
fprintf(stderr, "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;
fprintf(stderr, "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, 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;
fprintf(stderr, "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, int32_t id)
{
struct touch *touch = data;
touch->up_id = id;
fprintf(stderr, "test-client: got touch up, id: %d\n", id);
}
static void
touch_handle_motion(void *data, struct wl_touch *wl_touch,
uint32_t time, 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);
fprintf(stderr, "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;
fprintf(stderr, "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;
fprintf(stderr, "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);
fprintf(stderr, "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;
fprintf(stderr, "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);
fprintf(stderr, "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_test *weston_test)
{
struct test *test = data;
printf("Screenshot has been captured\n");
test->buffer_copy_done = 1;
}
static const struct weston_test_listener test_listener = {
test_handle_pointer_position,
test_handle_capture_screenshot_done,
};
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);
fprintf(stderr, "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");
fprintf(stderr, "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
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);
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->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);
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, "wl_drm") == 0) {
client->has_wl_drm = true;
}
}
static const struct wl_registry_listener registry_listener = {
handle_global
};
void
skip(const char *fmt, ...)
{
va_list argp;
va_start(argp, fmt);
vfprintf(stderr, fmt, argp);
va_end(argp);
/* automake tests uses exit code 77. weston-test-runner will see
* this and use it, and then weston-test's sigchld handler (in the
* weston process) will use that as an exit status, which is what
* automake will see in the end. */
exit(77);
}
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) {
fprintf(stderr, "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) {
fprintf(stderr, "Should get interface '%s' but got '%s'\n",
intf->name, interface->name);
failed = 1;
}
if (failed) {
fprintf(stderr, "Expected other protocol error\n");
abort();
}
/* all OK */
fprintf(stderr, "Got expected protocol error on '%s' (object id: %d) "
"with code %d\n", interface->name, id, errcode);
}
static void
log_handler(const char *fmt, va_list args)
{
fprintf(stderr, "libwayland: ");
vfprintf(stderr, fmt, args);
}
static void
input_destroy(struct input *inp)
{
wl_list_remove(&inp->link);
wl_seat_destroy(inp->wl_seat);
free(inp);
}
/* find the test-seat and set it in client.
* Destroy other inputs */
static void
client_set_input(struct client *cl)
{
struct input *inp, *inptmp;
wl_list_for_each_safe(inp, inptmp, &cl->inputs, link) {
assert(inp->seat_name && "BUG: input with no name");
if (strcmp(inp->seat_name, "test-seat") == 0) {
cl->input = inp;
input_update_devices(inp);
} else {
input_destroy(inp);
}
}
/* we keep only one input */
assert(wl_list_length(&cl->inputs) == 1);
}
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);
/* 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);
/* find the right input for us */
client_set_input(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->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;
}
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;
}
static const char*
output_path(void)
{
char *path = getenv("WESTON_TEST_OUTPUT_PATH");
if (!path)
return "./logs";
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 "./tests/reference";
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;
}
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");
}
/**
* Compute the ROI for image comparisons
*
* \param img_a An image.
* \param img_b 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(pixman_image_t *img_a, pixman_image_t *img_b,
const struct rectangle *clip_rect)
{
int width_a;
int width_b;
int height_a;
int height_b;
pixman_box32_t box;
width_a = pixman_image_get_width(img_a);
height_a = pixman_image_get_height(img_a);
width_b = pixman_image_get_width(img_b);
height_b = pixman_image_get_height(img_b);
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(width_a, width_b);
box.y2 = max(height_a, height_b);
}
assert(box.x1 >= 0);
assert(box.y1 >= 0);
assert(box.x2 > box.x1);
assert(box.y2 > box.y1);
assert(box.x2 <= width_a);
assert(box.x2 <= width_b);
assert(box.y2 <= height_a);
assert(box.y2 <= height_b);
return box;
}
struct image_iterator {
char *data;
int stride; /* bytes */
};
static void
image_iter_init(struct image_iterator *it, pixman_image_t *image)
{
pixman_format_code_t fmt;
it->stride = pixman_image_get_stride(image);
it->data = (void *)pixman_image_get_data(image);
fmt = pixman_image_get_format(image);
assert(PIXMAN_FORMAT_BPP(fmt) == 32);
}
static uint32_t *
image_iter_get_row(struct image_iterator *it, int y)
{
return (uint32_t *)(it->data + y * it->stride);
}
/**
* 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.
*
* 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.
*/
bool
check_images_match(pixman_image_t *img_a, pixman_image_t *img_b,
const struct rectangle *clip_rect)
{
struct image_iterator it_a;
struct image_iterator it_b;
pixman_box32_t box;
int x, y;
uint32_t *pix_a;
uint32_t *pix_b;
box = image_check_get_roi(img_a, img_b, clip_rect);
image_iter_init(&it_a, img_a);
image_iter_init(&it_b, img_b);
for (y = box.y1; y < box.y2; y++) {
pix_a = image_iter_get_row(&it_a, y) + box.x1;
pix_b = image_iter_get_row(&it_b, y) + box.x1;
for (x = box.x1; x < box.x2; x++) {
if (*pix_a != *pix_b)
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.
* \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.
*/
pixman_image_t *
visualize_image_difference(pixman_image_t *img_a, pixman_image_t *img_b,
const struct rectangle *clip_rect)
{
pixman_image_t *diffimg;
pixman_image_t *shade;
struct image_iterator it_a;
struct image_iterator it_b;
struct image_iterator it_d;
int width;
int height;
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 };
width = pixman_image_get_width(img_a);
height = pixman_image_get_height(img_a);
box = image_check_get_roi(img_a, img_b, clip_rect);
diffimg = pixman_image_create_bits_no_clear(PIXMAN_x8r8g8b8,
width, height, NULL, 0);
/* 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, width, 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);
image_iter_init(&it_a, img_a);
image_iter_init(&it_b, img_b);
image_iter_init(&it_d, diffimg);
for (y = box.y1; y < box.y2; y++) {
pix_a = image_iter_get_row(&it_a, y) + box.x1;
pix_b = image_iter_get_row(&it_b, y) + box.x1;
pix_d = image_iter_get_row(&it_d, y) + box.x1;
for (x = box.x1; x < box.x2; x++) {
if (*pix_a == *pix_b)
*pix_d = tint(*pix_d, 0x00008000); /* green */
else
*pix_d = tint(*pix_d, 0x00c00000); /* red */
pix_a++;
pix_b++;
pix_d++;
}
}
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;
cairo_format_t fmt;
fmt = format_pixman2cairo(pixman_image_get_format(image));
cairo_surface = cairo_image_surface_create_for_data(
(void *)pixman_image_get_data(image),
fmt,
pixman_image_get_width(image),
pixman_image_get_height(image),
pixman_image_get_stride(image));
status = cairo_surface_write_to_png(cairo_surface, fname);
if (status != CAIRO_STATUS_SUCCESS) {
fprintf(stderr, "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;
int width;
int height;
if (pixman_image_get_format(image) == PIXMAN_a8r8g8b8)
return pixman_image_ref(image);
width = pixman_image_get_width(image);
height = pixman_image_get_height(image);
ret = pixman_image_create_bits_no_clear(PIXMAN_a8r8g8b8, width, height,
NULL, 0);
assert(ret);
pixman_image_composite32(PIXMAN_OP_SRC, image, NULL, ret,
0, 0, 0, 0, 0, 0, width, 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) {
printf("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;
buffer = create_shm_buffer_a8r8g8b8(client,
client->output->width,
client->output->height);
client->test->buffer_copy_done = 0;
weston_test_capture_screenshot(client->test->weston_test,
client->output->wl_output,
buffer->proxy);
while (client->test->buffer_copy_done == 0)
if (wl_display_dispatch(client->wl_display) < 0)
break;
/* 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;
}