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/*
* Copyright © 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
*/
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "drmtest.h"
#include "igt_debugfs.h"
#include "igt_kms.h"
#include "ioctl_wrappers.h"
typedef struct {
int drm_fd;
igt_display_t display;
} data_t;
/*
* Test that a page flip from a tiled buffer to a linear one works
* correctly. First, it sets the crtc with the linear buffer and generate
* a reference crc for the pipe. Then, the crtc is set with the tiled one
* and page flip to the linear one issued. A new crc is generated and
* compared to the rerence one.
*/
static void
fill_linear_fb(struct igt_fb *fb, data_t *data, drmModeModeInfo *mode)
{
cairo_t *cr;
cr = igt_get_cairo_ctx(data->drm_fd, fb);
igt_paint_test_pattern(cr, mode->hdisplay, mode->vdisplay);
cairo_destroy(cr);
}
static void
test_flip_changes_tiling(data_t *data, igt_output_t *output)
{
struct igt_fb linear, tiled;
drmModeModeInfo *mode;
igt_plane_t *primary;
igt_pipe_crc_t *pipe_crc;
igt_crc_t reference_crc, crc;
int fb_id, pipe, ret, width;
pipe = 0;
pipe_crc = igt_pipe_crc_new(pipe, INTEL_PIPE_CRC_SOURCE_AUTO);
igt_output_set_pipe(output, 0);
mode = igt_output_get_mode(output);
primary = igt_output_get_plane(output, 0);
/* Allocate a linear buffer. Since a page flip to a buffer with
* different stride doesn't work, choose width so that the stride of
* both buffers is the same. */
width = 512;
while (width < mode->hdisplay)
width *= 2;
fb_id = igt_create_fb(data->drm_fd, width, mode->vdisplay,
DRM_FORMAT_XRGB8888, I915_TILING_NONE, &linear);
/* fill it with a pattern that will look wrong if tiling is wrong */
fill_linear_fb(&linear, data, mode);
/* set the crtc and generate a reference crc */
igt_plane_set_fb(primary, &linear);
igt_display_commit(&data->display);
igt_pipe_crc_collect_crc(pipe_crc, &reference_crc);
/* allocate a tiled buffer and set the crtc with it */
igt_create_color_fb(data->drm_fd, width, mode->vdisplay,
DRM_FORMAT_XRGB8888, I915_TILING_X, 0.0, 0.0, 0.0,
&tiled);
igt_plane_set_fb(primary, &tiled);
igt_display_commit(&data->display);
/* flip to the linear buffer */
ret = drmModePageFlip(data->drm_fd, output->config.crtc->crtc_id,
fb_id, 0, NULL);
igt_assert(ret == 0);
igt_wait_for_vblank(data->drm_fd, pipe);
/* get a crc and compare with the reference */
igt_pipe_crc_collect_crc(pipe_crc, &crc);
igt_assert(igt_crc_equal(&reference_crc, &crc));
/* clean up */
igt_plane_set_fb(primary, NULL);
igt_pipe_crc_free(pipe_crc);
igt_output_set_pipe(output, PIPE_ANY);
igt_display_commit(&data->display);
igt_remove_fb(data->drm_fd, &tiled);
igt_remove_fb(data->drm_fd, &linear);
}
static data_t data;
igt_output_t *output;
igt_main
{
igt_skip_on_simulation();
igt_fixture {
data.drm_fd = drm_open_any();
kmstest_set_vt_graphics_mode();
igt_require_pipe_crc();
igt_display_init(&data.display, data.drm_fd);
}
igt_subtest_f("flip-changes-tiling") {
for_each_connected_output(&data.display, output)
test_flip_changes_tiling(&data, output);
}
igt_fixture {
igt_display_fini(&data.display);
}
}
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