mirror of
https://gitlab.freedesktop.org/emersion/libliftoff.git
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a93ea4a300
This test makes sure composited layers make layers underneath fall back to composition too, in a transitive manner. That is, if plane A is under plane B which is itself under plane C, plane A falling back to composition means that both planes B and C fall back to composition too (even if C isn't directly underneath A).
508 lines
11 KiB
C
508 lines
11 KiB
C
#include <assert.h>
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#include <unistd.h>
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#include <libliftoff.h>
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#include <stdio.h>
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#include <string.h>
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#include "libdrm_mock.h"
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static struct liftoff_layer *add_layer(struct liftoff_output *output,
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int x, int y, int width, int height)
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{
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uint32_t fb_id;
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struct liftoff_layer *layer;
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layer = liftoff_layer_create(output);
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fb_id = liftoff_mock_drm_create_fb(layer);
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liftoff_layer_set_property(layer, "FB_ID", fb_id);
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liftoff_layer_set_property(layer, "CRTC_X", x);
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liftoff_layer_set_property(layer, "CRTC_Y", y);
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liftoff_layer_set_property(layer, "CRTC_W", width);
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liftoff_layer_set_property(layer, "CRTC_H", height);
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liftoff_layer_set_property(layer, "SRC_X", 0);
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liftoff_layer_set_property(layer, "SRC_Y", 0);
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liftoff_layer_set_property(layer, "SRC_W", width << 16);
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liftoff_layer_set_property(layer, "SRC_H", height << 16);
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return layer;
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}
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struct test_plane {
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int type;
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};
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struct test_layer {
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int x, y, width, height;
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int zpos; /* zero means unset */
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struct test_plane *compat[64];
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struct test_plane *result;
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};
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struct test_case {
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const char *name;
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struct test_layer layers[64];
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};
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static struct test_plane test_setup[] = {
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{ .type = DRM_PLANE_TYPE_PRIMARY }, /* zpos = 0 */
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{ .type = DRM_PLANE_TYPE_CURSOR }, /* zpos = 2 */
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{ .type = DRM_PLANE_TYPE_OVERLAY }, /* zpos = 1 */
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{ .type = DRM_PLANE_TYPE_OVERLAY }, /* zpos = 1 */
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};
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static const size_t test_setup_len = sizeof(test_setup) / sizeof(test_setup[0]);
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#define PRIMARY_PLANE &test_setup[0]
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#define CURSOR_PLANE &test_setup[1]
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#define OVERLAY_PLANE &test_setup[2]
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#define FIRST_3_PLANES { &test_setup[0], &test_setup[1], &test_setup[2] }
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#define FIRST_4_PLANES { &test_setup[0], &test_setup[1], &test_setup[2], \
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&test_setup[3] }
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static struct test_case tests[] = {
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{
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.name = "simple-1x-fail",
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.compat = { NULL },
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.result = NULL,
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},
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},
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},
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{
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.name = "simple-1x",
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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},
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},
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{
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.name = "simple-3x",
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.compat = { CURSOR_PLANE },
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.result = CURSOR_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.compat = { OVERLAY_PLANE },
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.result = OVERLAY_PLANE,
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},
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},
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},
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{
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.name = "zpos-3x",
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = FIRST_3_PLANES,
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.result = OVERLAY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = FIRST_3_PLANES,
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.result = CURSOR_PLANE,
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},
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},
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},
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{
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.name = "zpos-3x-intersect-fail",
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/* Layer 1 is over layer 2 but falls back to composition. Since
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* they intersect, layer 2 needs to be composited too. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = { NULL },
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.result = NULL,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = FIRST_3_PLANES,
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.result = NULL,
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},
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},
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},
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{
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.name = "zpos-3x-intersect-partial",
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/* Layer 1 is only compatible with the cursor plane. Layer 2 is
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* only compatible with the overlay plane. Layer 2 is over layer
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* 1, but the cursor plane is over the overlay plane. There is a
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* zpos conflict, only one of these two layers can be mapped to
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* a plane. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = { CURSOR_PLANE },
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.result = NULL,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = { OVERLAY_PLANE },
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.result = OVERLAY_PLANE,
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},
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},
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},
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{
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.name = "zpos-3x-disjoint-partial",
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/* Layer 1 is over layer 2 and falls back to composition. Since
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* they don't intersect, layer 2 can be mapped to a plane. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = { NULL },
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.result = NULL,
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},
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{
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.x = 100,
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.y = 100,
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = { CURSOR_PLANE },
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.result = CURSOR_PLANE,
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},
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},
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},
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{
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.name = "zpos-3x-disjoint",
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/* Layer 1 is only compatible with the cursor plane. Layer 2 is
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* only compatible with the overlay plane. Layer 2 is over layer
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* 1, but the cursor plane is over the overlay plane. There is a
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* zpos conflict, however since these two layers don't
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* intersect, we can still map them to planes. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = { CURSOR_PLANE },
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.result = CURSOR_PLANE,
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},
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{
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.x = 100,
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.y = 100,
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = { OVERLAY_PLANE },
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.result = OVERLAY_PLANE,
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},
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},
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},
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{
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.name = "zpos-4x-intersect-partial",
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/* We have 4 layers and 4 planes. However since they all
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* intersect and the ordering between both overlay planes is
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* undefined, we can only use 3 planes. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 4,
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.compat = FIRST_4_PLANES,
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.result = CURSOR_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = FIRST_4_PLANES,
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.result = NULL,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = FIRST_4_PLANES,
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.result = &test_setup[3],
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},
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},
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},
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{
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.name = "zpos-4x-disjoint",
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/* Ordering between the two overlay planes isn't defined,
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* however layers 2 and 3 don't intersect so they can be mapped
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* to these planes nonetheless. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 4,
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.compat = FIRST_4_PLANES,
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.result = CURSOR_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = FIRST_4_PLANES,
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.result = &test_setup[3],
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},
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{
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.x = 100,
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.y = 100,
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = FIRST_4_PLANES,
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.result = OVERLAY_PLANE,
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},
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},
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},
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{
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.name = "zpos-4x-domino-fail",
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/* A layer on top falls back to composition. There is a layer at
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* zpos=2 which doesn't overlap and could be mapped to a plane,
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* however another layer at zpos=3 overlaps both and prevents
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* all layers from being mapped to a plane. */
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.layers = {
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{
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.width = 1920,
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.height = 1080,
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.zpos = 1,
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.compat = { PRIMARY_PLANE },
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.result = PRIMARY_PLANE,
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},
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{
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.width = 100,
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.height = 100,
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.zpos = 4,
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.compat = { NULL },
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.result = NULL,
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},
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{
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.x = 100,
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.y = 100,
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.width = 100,
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.height = 100,
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.zpos = 2,
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.compat = FIRST_4_PLANES,
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.result = NULL,
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},
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{
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.x = 50,
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.y = 50,
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.width = 100,
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.height = 100,
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.zpos = 3,
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.compat = FIRST_4_PLANES,
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.result = NULL,
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},
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},
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},
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};
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static void run_test(struct test_layer *test_layers)
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{
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size_t i, j;
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ssize_t plane_index_got, plane_index_want;
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struct liftoff_mock_plane *mock_planes[64];
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struct liftoff_mock_plane *mock_plane;
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struct test_layer *test_layer;
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int drm_fd;
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struct liftoff_display *display;
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struct liftoff_output *output;
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struct liftoff_layer *layers[64];
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drmModeAtomicReq *req;
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bool ok;
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uint32_t plane_id;
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for (i = 0; i < test_setup_len; i++) {
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mock_planes[i] = liftoff_mock_drm_create_plane(test_setup[i].type);
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}
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drm_fd = liftoff_mock_drm_open();
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display = liftoff_display_create(drm_fd);
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assert(display != NULL);
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output = liftoff_output_create(display, liftoff_mock_drm_crtc_id);
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for (i = 0; test_layers[i].width > 0; i++) {
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test_layer = &test_layers[i];
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layers[i] = add_layer(output, test_layer->x, test_layer->y,
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test_layer->width, test_layer->height);
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if (test_layer->zpos != 0) {
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liftoff_layer_set_property(layers[i], "zpos",
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test_layer->zpos);
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}
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for (j = 0; test_layer->compat[j] != NULL; j++) {
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mock_plane = mock_planes[test_layer->compat[j] -
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test_setup];
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liftoff_mock_plane_add_compatible_layer(mock_plane,
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layers[i]);
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}
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}
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req = drmModeAtomicAlloc();
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ok = liftoff_display_apply(display, req);
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assert(ok);
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drmModeAtomicFree(req);
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for (i = 0; test_layers[i].width > 0; i++) {
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plane_id = liftoff_layer_get_plane_id(layers[i]);
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mock_plane = NULL;
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if (plane_id != 0) {
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mock_plane = liftoff_mock_drm_get_plane(plane_id);
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}
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plane_index_got = -1;
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for (j = 0; j < test_setup_len; j++) {
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if (mock_planes[j] == mock_plane) {
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plane_index_got = j;
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break;
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}
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}
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assert(mock_plane == NULL || plane_index_got >= 0);
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fprintf(stderr, "layer %zu got assigned to plane %d\n",
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i, (int)plane_index_got);
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plane_index_want = -1;
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if (test_layers[i].result != NULL) {
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plane_index_want = test_layers[i].result - test_setup;
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}
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if (plane_index_got != plane_index_want) {
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fprintf(stderr, " ERROR: want plane %d\n",
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(int)plane_index_want);
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ok = false;
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}
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}
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assert(ok);
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liftoff_display_destroy(display);
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close(drm_fd);
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}
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static void test_basic(void)
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{
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struct liftoff_mock_plane *mock_plane;
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int drm_fd;
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struct liftoff_display *display;
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struct liftoff_output *output;
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struct liftoff_layer *layer;
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drmModeAtomicReq *req;
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bool ok;
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mock_plane = liftoff_mock_drm_create_plane(DRM_PLANE_TYPE_PRIMARY);
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drm_fd = liftoff_mock_drm_open();
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display = liftoff_display_create(drm_fd);
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assert(display != NULL);
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output = liftoff_output_create(display, liftoff_mock_drm_crtc_id);
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layer = add_layer(output, 0, 0, 1920, 1080);
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liftoff_mock_plane_add_compatible_layer(mock_plane, layer);
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req = drmModeAtomicAlloc();
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ok = liftoff_display_apply(display, req);
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assert(ok);
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assert(liftoff_mock_plane_get_layer(mock_plane, req) == layer);
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drmModeAtomicFree(req);
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liftoff_display_destroy(display);
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close(drm_fd);
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}
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int main(int argc, char *argv[]) {
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const char *test_name;
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size_t i;
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if (argc != 2) {
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fprintf(stderr, "usage: %s <test-name>\n", argv[0]);
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return 1;
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}
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test_name = argv[1];
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if (strcmp(test_name, "basic") == 0) {
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test_basic();
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return 0;
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}
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for (i = 0; i < sizeof(tests) / sizeof(tests[0]); i++) {
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if (strcmp(tests[i].name, test_name) == 0) {
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run_test(tests[i].layers);
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return 0;
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}
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}
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fprintf(stderr, "no such test: %s\n", test_name);
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return 1;
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}
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