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https://gitlab.freedesktop.org/wayland/weston
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![Derek Foreman](/assets/img/avatar_default.png)
Add tests to validate that weston_matrix_to_transform() works properly on the matrices generated by weston_surface_build_buffer_matrix() and weston_output_update_matrix() Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
409 lines
13 KiB
C
409 lines
13 KiB
C
/*
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* Copyright © 2022 Collabora, Ltd.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "config.h"
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#include <assert.h>
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#include <math.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <wayland-client.h>
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#include "libweston-internal.h"
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#include "libweston/matrix.h"
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#include "weston-test-client-helper.h"
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static void
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transform_expect(struct weston_matrix *a, bool valid, enum wl_output_transform ewt)
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{
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enum wl_output_transform wt;
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assert(weston_matrix_to_transform(a, &wt) == valid);
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if (valid)
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assert(wt == ewt);
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}
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TEST(transformation_matrix)
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{
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struct weston_matrix a, b;
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int i;
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weston_matrix_init(&a);
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weston_matrix_init(&b);
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weston_matrix_multiply(&a, &b);
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assert(a.type == 0);
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/* Make b a matrix that rotates a surface on the x,y plane by 90
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* degrees counter-clockwise */
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weston_matrix_rotate_xy(&b, 0, -1);
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assert(b.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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for (i = 0; i < 10; i++) {
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_90);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_180);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_270);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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}
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weston_matrix_init(&b);
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/* Make b a matrix that rotates a surface on the x,y plane by 45
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* degrees counter-clockwise. This should alternate between a
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* standard transform and a rotation that fails to match any
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* known rotations. */
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weston_matrix_rotate_xy(&b, cos(-M_PI / 4.0), sin(-M_PI / 4.0));
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assert(b.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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for (i = 0; i < 10; i++) {
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_90);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_180);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_270);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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}
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weston_matrix_init(&b);
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/* Make b a matrix that rotates a surface on the x,y plane by 45
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* degrees counter-clockwise. This should alternate between a
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* standard transform and a rotation that fails to match any known
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* rotations. */
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weston_matrix_rotate_xy(&b, cos(-M_PI / 4.0), sin(-M_PI / 4.0));
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/* Flip a */
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weston_matrix_scale(&a, -1.0, 1.0, 1.0);
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for (i = 0; i < 10; i++) {
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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/* Since we're not translated or scaled, any matrix that
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* matches a standard wl_output_transform should not need
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* filtering when used to transform images - but any
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* matrix that fails to match will. */
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_90);
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assert(!weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_180);
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assert(!weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_270);
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assert(!weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED);
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assert(!weston_matrix_needs_filtering(&a));
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}
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weston_matrix_init(&a);
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/* Flip a around Y*/
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weston_matrix_scale(&a, 1.0, -1.0, 1.0);
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for (i = 0; i < 100; i++) {
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/* Throw some arbitrary translation in here to make sure it
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* doesn't have any impact. */
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weston_matrix_translate(&a, 31.0, -25.0, 0.0);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_270);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_90);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_180);
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}
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/* Scale shouldn't matter, as long as it's positive */
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weston_matrix_scale(&a, 4.0, 3.0, 1.0);
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/* Invert b so it rotates the opposite direction, go back the other way. */
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weston_matrix_invert(&b, &b);
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for (i = 0; i < 100; i++) {
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_90);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_270);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, false, 0);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_180);
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assert(weston_matrix_needs_filtering(&a));
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}
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/* Flipping Y should return us from here to normal */
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weston_matrix_scale(&a, 1.0, -1.0, 1.0);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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weston_matrix_init(&a);
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weston_matrix_init(&b);
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weston_matrix_translate(&b, 0.5, -0.75, 0);
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/* Crawl along with translations, 0.5 and .75 will both hit an integer multiple
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* at the same time every 4th step, so assert that only the 4th steps don't need
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* filtering */
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for (i = 0; i < 100; i++) {
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(weston_matrix_needs_filtering(&a));
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(!weston_matrix_needs_filtering(&a));
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}
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weston_matrix_init(&b);
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weston_matrix_scale(&b, 1.5, 2.0, 1.0);
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for (i = 0; i < 10; i++) {
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(weston_matrix_needs_filtering(&a));
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}
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weston_matrix_invert(&b, &b);
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for (i = 0; i < 9; i++) {
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(weston_matrix_needs_filtering(&a));
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}
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/* Last step should bring us back to a matrix that doesn't need
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* a filter */
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weston_matrix_multiply(&a, &b);
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transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
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assert(!weston_matrix_needs_filtering(&a));
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}
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static void
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simple_weston_surface_prepare(struct weston_surface *surf,
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int buffer_width, int buffer_height,
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int surface_width, int surface_height,
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int scale, uint32_t transform,
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int src_x, int src_y,
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int src_width, int src_height)
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{
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struct weston_buffer_viewport vp = {
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.buffer = {
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.transform = transform,
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.scale = scale,
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.src_x = wl_fixed_from_int(src_x),
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.src_y = wl_fixed_from_int(src_y),
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.src_width = wl_fixed_from_int(src_width),
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.src_height = wl_fixed_from_int(src_height),
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},
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.surface = {
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.width = surface_width,
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.height = surface_height,
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},
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};
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surf->buffer_viewport = vp;
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convert_size_by_transform_scale(&surf->width_from_buffer,
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&surf->height_from_buffer,
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buffer_width,
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buffer_height,
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transform,
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scale);
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weston_surface_build_buffer_matrix(surf,
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&surf->surface_to_buffer_matrix);
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weston_matrix_invert(&surf->buffer_to_surface_matrix,
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&surf->surface_to_buffer_matrix);
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}
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static void
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surface_test_all_transforms(struct weston_surface *surf,
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int buffer_width, int buffer_height,
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int surface_width, int surface_height,
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int scale, int src_x, int src_y,
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int src_width, int src_height)
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{
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int transform;
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for (transform = WL_OUTPUT_TRANSFORM_NORMAL;
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transform <= WL_OUTPUT_TRANSFORM_FLIPPED_270; transform++) {
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simple_weston_surface_prepare(surf,
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buffer_width, buffer_height,
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surface_width, surface_height,
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scale, transform,
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src_x, src_y,
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src_width, src_height);
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transform_expect(&surf->surface_to_buffer_matrix,
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true, transform);
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}
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}
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TEST(surface_matrix_to_standard_transform)
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{
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struct weston_surface surf;
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int scale;
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for (scale = 1; scale < 8; scale++) {
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/* A simple case */
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surface_test_all_transforms(&surf, 500, 700, -1, -1, scale,
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0, 0, 500, 700);
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/* Translate the source corner */
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surface_test_all_transforms(&surf, 500, 700, -1, -1, scale,
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70, 20, 500, 700);
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/* Get some scaling (and fractional translation) in there */
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surface_test_all_transforms(&surf, 723, 300, 512, 77, scale,
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120, 10, 200, 200);
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}
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}
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static void
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simple_weston_output_prepare(struct weston_output *output,
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int x, int y, int width, int height,
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int scale, uint32_t transform)
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{
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output->x = x;
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output->y = y;
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output->width = width;
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output->height = height;
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output->current_scale = scale;
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output->transform = transform;
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weston_output_update_matrix(output);
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}
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static void
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output_test_all_transforms(struct weston_output *output,
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int x, int y, int width, int height, int scale)
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{
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int transform;
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for (transform = WL_OUTPUT_TRANSFORM_NORMAL;
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transform <= WL_OUTPUT_TRANSFORM_FLIPPED_270; transform++) {
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simple_weston_output_prepare(output, x, y, width, height,
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scale, transform);
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/* The inverse matrix takes us from output to global space,
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* which makes it the one that will have the expected
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* standard transform.
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*/
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transform_expect(&output->matrix, true, transform);
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}
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}
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TEST(output_matrix_to_standard_transform)
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{
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struct weston_output output;
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int scale;
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/* Just a few arbitrary sizes and positions to make sure we have
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* scales and translations.
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*/
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for (scale = 1; scale < 8; scale++) {
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output_test_all_transforms(&output, 0, 0, 1024, 768, scale);
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output_test_all_transforms(&output, 1000, 1000, 1024, 768, scale);
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output_test_all_transforms(&output, 1024, 768, 1920, 1080, scale);
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}
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}
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