test: Add the start of a testsuite for damage.
Inspired by the previous bug, build something we can use to write damage testcases, including testing for the bug. Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Eric Anholt
parent
bc36594e0e
commit
89901e14d2
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@ -0,0 +1,9 @@
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xcb_dep = dependency('xcb', required: false)
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xcb_damage_dep = dependency('xcb-damage', required: false)
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if get_option('xvfb')
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if xcb_dep.found() and xcb_damage_dep.found()
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damage_primitives = executable('damage-primitives', 'primitives.c', dependencies: [xcb_dep, xcb_damage_dep])
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test('damage-primitives', simple_xinit, args: [damage_primitives, '--', xvfb_server])
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endif
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endif
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@ -0,0 +1,359 @@
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/*
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* Copyright © 2018 Broadcom
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/** @file
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*
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* Touch-testing of the damage extension's implementation of various
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* primitives. The core initializes the pixmap with some contents,
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* turns on damage and each per-primitive test gets to just make a
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* rendering call that draws some pixels. Afterwards, the core checks
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* what pixels were modified and makes sure the damage report contains
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* them.
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*/
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#include <assert.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include <xcb/damage.h>
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struct test_setup {
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xcb_connection_t *c;
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xcb_drawable_t d;
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xcb_drawable_t start_drawable;
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uint32_t *start_drawable_contents;
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xcb_screen_t *screen;
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xcb_gc_t gc;
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int width, height;
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uint32_t *expected;
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uint32_t *damaged;
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};
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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/**
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* Performs a synchronous GetImage for a test pixmap, returning
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* uint32_t per pixel.
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*/
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static uint32_t *
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get_image(struct test_setup *setup, xcb_drawable_t drawable)
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{
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xcb_get_image_cookie_t cookie =
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xcb_get_image(setup->c, XCB_IMAGE_FORMAT_Z_PIXMAP, drawable,
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0, 0, setup->width, setup->height, ~0);
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xcb_get_image_reply_t *reply =
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xcb_get_image_reply(setup->c, cookie, NULL);
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uint8_t *data = xcb_get_image_data(reply);
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int len = xcb_get_image_data_length(reply);
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/* Do I understand X protocol and our test environment? */
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assert(reply->depth == 24);
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assert(len == 4 * setup->width * setup->height);
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uint32_t *result = malloc(sizeof(uint32_t) *
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setup->width * setup->height);
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memcpy(result, data, len);
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free(reply);
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return result;
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}
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/**
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* Gets the image drawn by the test and compares it to the starting
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* image, producing a bitmask of what pixels were damaged.
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*/
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static void
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compute_expected_damage(struct test_setup *setup)
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{
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uint32_t *results = get_image(setup, setup->d);
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bool any_modified_pixels = false;
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for (int i = 0; i < setup->width * setup->height; i++) {
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if (results[i] != setup->start_drawable_contents[i]) {
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setup->expected[i / 32] |= 1 << (i % 32);
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any_modified_pixels = true;
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}
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}
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/* Make sure that the testcases actually render something! */
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assert(any_modified_pixels);
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}
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/**
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* Processes a damage event, filling in the bitmask of pixels reported
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* to be damaged.
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*/
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static bool
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damage_event_handle(struct test_setup *setup,
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struct xcb_damage_notify_event_t *event)
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{
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xcb_rectangle_t *rect = &event->area;
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assert(event->drawable == setup->d);
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for (int y = rect->y; y < rect->y + rect->height; y++) {
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for (int x = rect->x; x < rect->x + rect->width; x++) {
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int bit = y * setup->width + x;
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setup->damaged[bit / 32] |= 1 << (bit % 32);
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}
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}
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return event->level & 0x80; /* XXX: MORE is missing from xcb. */
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}
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/**
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* Collects a series of damage events (while the MORE flag is set)
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* into the damaged bitmask.
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*/
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static void
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collect_damage(struct test_setup *setup)
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{
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const xcb_query_extension_reply_t *ext =
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xcb_get_extension_data(setup->c, &xcb_damage_id);
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xcb_generic_event_t *ge;
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xcb_flush(setup->c);
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while ((ge = xcb_wait_for_event(setup->c))) {
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int event = ge->response_type & ~0x80;
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if (event == (ext->first_event + XCB_DAMAGE_NOTIFY)) {
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if (!damage_event_handle(setup,
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(struct xcb_damage_notify_event_t *)ge)) {
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return;
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}
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} else {
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switch (ge->response_type) {
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case 0: {
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xcb_generic_error_t *error = (xcb_generic_error_t *)ge;
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fprintf(stderr, "X error %d at sequence %d\n",
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error->error_code, error->sequence);
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exit(1);
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}
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case XCB_GRAPHICS_EXPOSURE:
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case XCB_NO_EXPOSURE:
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break;
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default:
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fprintf(stderr, "Unexpected event %d\n", ge->response_type);
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exit(1);
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}
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}
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}
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fprintf(stderr, "I/O error\n");
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exit(1);
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}
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/**
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* Wrapper to set up the test pixmap, attach damage to it, and see if
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* the reported damage matches the testcase's rendering.
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*/
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static bool
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damage_test(struct test_setup *setup,
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void (*test)(struct test_setup *setup),
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const char *name)
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{
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uint32_t expected[32] = { 0 };
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uint32_t damaged[32] = { 0 };
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printf("Testing %s\n", name);
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setup->expected = expected;
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setup->damaged = damaged;
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/* Create our pixmap for this test and fill it with the
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* starting image.
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*/
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setup->d = xcb_generate_id(setup->c);
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xcb_create_pixmap(setup->c, setup->screen->root_depth,
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setup->d, setup->screen->root,
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setup->width, setup->height);
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setup->gc = xcb_generate_id(setup->c);
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uint32_t values[] = { setup->screen->black_pixel };
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xcb_create_gc(setup->c, setup->gc, setup->screen->root,
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XCB_GC_FOREGROUND, values);
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xcb_copy_area(setup->c,
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setup->start_drawable,
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setup->d,
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setup->gc,
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0, 0,
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0, 0,
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setup->width, setup->height);
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/* Start watching for damage now that we have the initial contents. */
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xcb_damage_damage_t damage = xcb_generate_id(setup->c);
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xcb_damage_create(setup->c, damage, setup->d,
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XCB_DAMAGE_REPORT_LEVEL_RAW_RECTANGLES);
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test(setup);
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compute_expected_damage(setup);
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xcb_damage_destroy(setup->c, damage);
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xcb_free_gc(setup->c, setup->gc);
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xcb_free_pixmap(setup->c, setup->d);
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collect_damage(setup);
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for (int bit = 0; bit < setup->width * setup->height; bit++) {
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if ((expected[bit / 32] & (1 << bit % 32)) &&
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!(damaged[bit / 32] & (1 << bit % 32))) {
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fprintf(stderr, " fail: %s(): Damage report missed %d, %d\n",
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name, bit % setup->width, bit / setup->width);
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return false;
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}
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}
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return true;
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}
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/**
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* Creates the pixmap of contents that will be the initial state of
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* each test's drawable.
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*/
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static void
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create_start_pixmap(struct test_setup *setup)
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{
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setup->start_drawable = xcb_generate_id(setup->c);
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xcb_create_pixmap(setup->c, setup->screen->root_depth,
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setup->start_drawable, setup->screen->root,
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setup->width, setup->height);
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xcb_gc_t gc = xcb_generate_id(setup->c);
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uint32_t values[] = { 0xaaaaaaaa };
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xcb_create_gc(setup->c, gc, setup->screen->root,
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XCB_GC_FOREGROUND, values);
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xcb_rectangle_t rect = { 5, 5, 10, 15 };
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xcb_poly_rectangle(setup->c, setup->start_drawable, gc, 1, &rect);
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xcb_free_gc(setup->c, gc);
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/* Capture the rendered start contents once, for comparing each
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* test's rendering output to the start contents.
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*/
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setup->start_drawable_contents = get_image(setup, setup->start_drawable);
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}
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static void
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test_poly_point_origin(struct test_setup *setup)
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{
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struct xcb_point_t points[] = { {1, 2}, {3, 4} };
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xcb_poly_point(setup->c, XCB_COORD_MODE_ORIGIN, setup->d, setup->gc,
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ARRAY_SIZE(points), points);
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}
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static void
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test_poly_point_previous(struct test_setup *setup)
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{
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struct xcb_point_t points[] = { {1, 2}, {3, 4} };
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xcb_poly_point(setup->c, XCB_COORD_MODE_PREVIOUS, setup->d, setup->gc,
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ARRAY_SIZE(points), points);
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}
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static void
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test_poly_line_origin(struct test_setup *setup)
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{
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struct xcb_point_t points[] = { {1, 2}, {3, 4}, {5, 6} };
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xcb_poly_line(setup->c, XCB_COORD_MODE_ORIGIN, setup->d, setup->gc,
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ARRAY_SIZE(points), points);
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}
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static void
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test_poly_line_previous(struct test_setup *setup)
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{
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struct xcb_point_t points[] = { {1, 2}, {3, 4}, {5, 6} };
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xcb_poly_line(setup->c, XCB_COORD_MODE_PREVIOUS, setup->d, setup->gc,
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ARRAY_SIZE(points), points);
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}
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static void
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test_poly_fill_rectangle(struct test_setup *setup)
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{
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struct xcb_rectangle_t rects[] = { {1, 2, 3, 4},
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{5, 6, 7, 8} };
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xcb_poly_fill_rectangle(setup->c, setup->d, setup->gc,
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ARRAY_SIZE(rects), rects);
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}
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static void
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test_poly_rectangle(struct test_setup *setup)
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{
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struct xcb_rectangle_t rects[] = { {1, 2, 3, 4},
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{5, 6, 7, 8} };
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xcb_poly_rectangle(setup->c, setup->d, setup->gc,
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ARRAY_SIZE(rects), rects);
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}
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static void
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test_poly_segment(struct test_setup *setup)
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{
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struct xcb_segment_t segs[] = { {1, 2, 3, 4},
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{5, 6, 7, 8} };
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xcb_poly_segment(setup->c, setup->d, setup->gc,
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ARRAY_SIZE(segs), segs);
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}
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int main(int argc, char **argv)
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{
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int screen;
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xcb_connection_t *c = xcb_connect(NULL, &screen);
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const xcb_query_extension_reply_t *ext =
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xcb_get_extension_data(c, &xcb_damage_id);
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if (!ext->present) {
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printf("No XDamage present\n");
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exit(77);
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}
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struct test_setup setup = {
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.c = c,
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.width = 32,
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.height = 32,
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};
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/* Get the screen so we have the root window. */
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xcb_screen_iterator_t iter;
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iter = xcb_setup_roots_iterator (xcb_get_setup (c));
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setup.screen = iter.data;
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xcb_damage_query_version(c, 1, 1);
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create_start_pixmap(&setup);
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bool pass = true;
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#define test(x) pass = damage_test(&setup, x, #x) && pass;
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test(test_poly_point_origin);
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test(test_poly_point_previous);
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test(test_poly_line_origin);
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test(test_poly_line_previous);
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test(test_poly_fill_rectangle);
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test(test_poly_rectangle);
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test(test_poly_segment);
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xcb_disconnect(c);
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exit(pass ? 0 : 1);
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}
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@ -24,4 +24,5 @@ if get_option('xvfb')
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endif
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endif
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subdir('bigreq')
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subdir('bigreq')
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subdir('damage')
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subdir('sync')
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subdir('sync')
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