mirrors/weston
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
1ed88f60c0
weston/tests/matrix-transform-test.c
Derek Foreman da3d3c7e95 compositor: Add dirty bits to paint nodes 
We're pushing more and more mutable state into paint nodes, but this state
has a non-zero cost to rebuild every render.

Let's take care to track when we need to rebuild the state.

Signed-off-by: Derek Foreman <derek.foreman@collabora.com>
2023-02-02 13:49:39 +00:00

465 lines
14 KiB
C
Raw Blame History

/*
* Copyright © 2022 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <assert.h>
#include <math.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <wayland-client.h>
#include "libweston-internal.h"
#include "libweston/matrix.h"
#include "weston-test-client-helper.h"
static void
transform_expect(struct weston_matrix *a, bool valid, enum wl_output_transform ewt)
{
enum wl_output_transform wt;
assert(weston_matrix_to_transform(a, &wt) == valid);
if (valid)
assert(wt == ewt);
}
TEST(transformation_matrix)
{
struct weston_matrix a, b;
int i;
weston_matrix_init(&a);
weston_matrix_init(&b);
weston_matrix_multiply(&a, &b);
assert(a.type == 0);
/* Make b a matrix that rotates a surface on the x,y plane by 90
* degrees counter-clockwise */
weston_matrix_rotate_xy(&b, 0, -1);
assert(b.type == WESTON_MATRIX_TRANSFORM_ROTATE);
for (i = 0; i < 10; i++) {
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_90);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_180);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_270);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
}
weston_matrix_init(&b);
/* Make b a matrix that rotates a surface on the x,y plane by 45
* degrees counter-clockwise. This should alternate between a
* standard transform and a rotation that fails to match any
* known rotations. */
weston_matrix_rotate_xy(&b, cos(-M_PI / 4.0), sin(-M_PI / 4.0));
assert(b.type == WESTON_MATRIX_TRANSFORM_ROTATE);
for (i = 0; i < 10; i++) {
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_90);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_180);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_270);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
assert(a.type == WESTON_MATRIX_TRANSFORM_ROTATE);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
}
weston_matrix_init(&b);
/* Make b a matrix that rotates a surface on the x,y plane by 45
* degrees counter-clockwise. This should alternate between a
* standard transform and a rotation that fails to match any known
* rotations. */
weston_matrix_rotate_xy(&b, cos(-M_PI / 4.0), sin(-M_PI / 4.0));
/* Flip a */
weston_matrix_scale(&a, -1.0, 1.0, 1.0);
for (i = 0; i < 10; i++) {
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
/* Since we're not translated or scaled, any matrix that
* matches a standard wl_output_transform should not need
* filtering when used to transform images - but any
* matrix that fails to match will. */
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_90);
assert(!weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_180);
assert(!weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_270);
assert(!weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED);
assert(!weston_matrix_needs_filtering(&a));
}
weston_matrix_init(&a);
/* Flip a around Y*/
weston_matrix_scale(&a, 1.0, -1.0, 1.0);
for (i = 0; i < 100; i++) {
/* Throw some arbitrary translation in here to make sure it
* doesn't have any impact. */
weston_matrix_translate(&a, 31.0, -25.0, 0.0);
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_270);
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED);
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_90);
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_180);
}
/* Scale shouldn't matter, as long as it's positive */
weston_matrix_scale(&a, 4.0, 3.0, 1.0);
/* Invert b so it rotates the opposite direction, go back the other way. */
weston_matrix_invert(&b, &b);
for (i = 0; i < 100; i++) {
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_90);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_270);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, false, 0);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_FLIPPED_180);
assert(weston_matrix_needs_filtering(&a));
}
/* Flipping Y should return us from here to normal */
weston_matrix_scale(&a, 1.0, -1.0, 1.0);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
weston_matrix_init(&a);
weston_matrix_init(&b);
weston_matrix_translate(&b, 0.5, -0.75, 0);
/* Crawl along with translations, 0.5 and .75 will both hit an integer multiple
* at the same time every 4th step, so assert that only the 4th steps don't need
* filtering */
for (i = 0; i < 100; i++) {
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(weston_matrix_needs_filtering(&a));
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(!weston_matrix_needs_filtering(&a));
}
weston_matrix_init(&b);
weston_matrix_scale(&b, 1.5, 2.0, 1.0);
for (i = 0; i < 10; i++) {
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(weston_matrix_needs_filtering(&a));
}
weston_matrix_invert(&b, &b);
for (i = 0; i < 9; i++) {
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(weston_matrix_needs_filtering(&a));
}
/* Last step should bring us back to a matrix that doesn't need
* a filter */
weston_matrix_multiply(&a, &b);
transform_expect(&a, true, WL_OUTPUT_TRANSFORM_NORMAL);
assert(!weston_matrix_needs_filtering(&a));
}
static void
simple_weston_surface_prepare(struct weston_surface *surf,
int buffer_width, int buffer_height,
int surface_width, int surface_height,
int scale, uint32_t transform,
int src_x, int src_y,
int src_width, int src_height)
{
struct weston_buffer_viewport vp = {
.buffer = {
.transform = transform,
.scale = scale,
.src_x = wl_fixed_from_int(src_x),
.src_y = wl_fixed_from_int(src_y),
.src_width = wl_fixed_from_int(src_width),
.src_height = wl_fixed_from_int(src_height),
},
.surface = {
.width = surface_width,
.height = surface_height,
},
};
surf->buffer_viewport = vp;
convert_size_by_transform_scale(&surf->width_from_buffer,
&surf->height_from_buffer,
buffer_width,
buffer_height,
transform,
scale);
weston_surface_build_buffer_matrix(surf,
&surf->surface_to_buffer_matrix);
weston_matrix_invert(&surf->buffer_to_surface_matrix,
&surf->surface_to_buffer_matrix);
}
static void
surface_test_all_transforms(struct weston_surface *surf,
int buffer_width, int buffer_height,
int surface_width, int surface_height,
int scale, int src_x, int src_y,
int src_width, int src_height)
{
int transform;
for (transform = WL_OUTPUT_TRANSFORM_NORMAL;
transform <= WL_OUTPUT_TRANSFORM_FLIPPED_270; transform++) {
simple_weston_surface_prepare(surf,
buffer_width, buffer_height,
surface_width, surface_height,
scale, transform,
src_x, src_y,
src_width, src_height);
transform_expect(&surf->surface_to_buffer_matrix,
true, transform);
}
}
TEST(surface_matrix_to_standard_transform)
{
struct weston_surface surf;
int scale;
for (scale = 1; scale < 8; scale++) {
/* A simple case */
surface_test_all_transforms(&surf, 500, 700, -1, -1, scale,
0, 0, 500, 700);
/* Translate the source corner */
surface_test_all_transforms(&surf, 500, 700, -1, -1, scale,
70, 20, 500, 700);
/* Get some scaling (and fractional translation) in there */
surface_test_all_transforms(&surf, 723, 300, 512, 77, scale,
120, 10, 200, 200);
}
}
static void
simple_weston_output_prepare(struct weston_output *output,
int x, int y, int width, int height,
int scale, uint32_t transform)
{
output->x = x;
output->y = y;
output->width = width;
output->height = height;
output->current_scale = scale;
output->transform = transform;
wl_list_init(&output->paint_node_list);
weston_output_update_matrix(output);
}
static struct weston_vector
simple_transform_vector(struct weston_output *output, struct weston_vector in)
{
struct weston_vector out = in;
int scale = output->current_scale;
switch (output->transform) {
case WL_OUTPUT_TRANSFORM_NORMAL:
out.f[0] = (-output->x + in.f[0]) * scale;
out.f[1] = (-output->y + in.f[1]) * scale;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED:
out.f[0] = (output->x + output->width - in.f[0]) * scale;
out.f[1] = (-output->y + in.f[1]) * scale;
break;
case WL_OUTPUT_TRANSFORM_90:
out.f[0] = (-output->y + in.f[1]) * scale;
out.f[1] = (output->x + output->width - in.f[0]) * scale;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_90:
out.f[0] = (-output->y + in.f[1]) * scale;
out.f[1] = (-output->x + in.f[0]) * scale;
break;
case WL_OUTPUT_TRANSFORM_180:
out.f[0] = (output->x + output->width - in.f[0]) * scale;
out.f[1] = (output->y + output->height - in.f[1]) * scale;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_180:
out.f[0] = (-output->x + in.f[0]) * scale;
out.f[1] = (output->y + output->height - in.f[1]) * scale;
break;
case WL_OUTPUT_TRANSFORM_270:
out.f[0] = (output->y + output->height - in.f[1]) * scale;
out.f[1] = (-output->x + in.f[0]) * scale;
break;
case WL_OUTPUT_TRANSFORM_FLIPPED_270:
out.f[0] = (output->y + output->height - in.f[1]) * scale;
out.f[1] = (output->x + output->width - in.f[0]) * scale;
break;
}
out.f[2] = 0;
out.f[3] = 1;
return out;
}
static void
output_test_all_transforms(struct weston_output *output,
int x, int y, int width, int height, int scale)
{
int i;
int transform;
struct weston_vector t = { { 7.0, 13.0, 0.0, 1.0 } };
struct weston_vector v, sv;
for (transform = WL_OUTPUT_TRANSFORM_NORMAL;
transform <= WL_OUTPUT_TRANSFORM_FLIPPED_270; transform++) {
simple_weston_output_prepare(output, x, y, width, height,
scale, transform);
/* The inverse matrix takes us from output to global space,
* which makes it the one that will have the expected
* standard transform.
*/
transform_expect(&output->matrix, true, transform);
v = t;
weston_matrix_transform(&output->matrix, &v);
sv = simple_transform_vector(output, t);
for (i = 0; i < 4; i++)
assert (sv.f[i] == v.f[i]);
}
}
TEST(output_matrix_to_standard_transform)
{
struct weston_output output;
int scale;
/* Just a few arbitrary sizes and positions to make sure we have
* scales and translations.
*/
for (scale = 1; scale < 8; scale++) {
output_test_all_transforms(&output, 0, 0, 1024, 768, scale);
output_test_all_transforms(&output, 1000, 1000, 1024, 768, scale);
output_test_all_transforms(&output, 1024, 768, 1920, 1080, scale);
}
}
Reference in New Issue View Git Blame Copy Permalink