tests: add simple flip test

Add a simple flip test to test flipping on a single output with the
preferred mode.

TODO: test each crtc for 3s and print pass/fail results

tests/Makefile.am

@@ -62,6 +62,7 @@ TESTS_progs = \
 	drm_vma_limiter_gtt \
 	drm_vma_limiter_cached \
 	sysfs_rc6_residency \
+	flip_test \
 	$(NULL)
 
 # IMPORTANT: The ZZ_ tests need to be run last!

tests/flip_test.c

@@ -0,0 +1,576 @@
+/*
+ * Copyright 2012 Intel Corporation
+ *   Jesse Barnes <jesse.barnes@intel.com>
+ *
+ * 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 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 <cairo.h>
+#include <errno.h>
+#include <math.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/poll.h>
+#include <sys/time.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+
+#include "xf86drm.h"
+#include "xf86drmMode.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+#include "testdisplay.h"
+
+drmModeRes *resources;
+int drm_fd;
+int test_time = 3;
+
+uint32_t *fb_ptr;
+
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+
+struct type_name {
+	int type;
+	const char *name;
+};
+
+struct test_output {
+	uint32_t id;
+	int mode_valid;
+	drmModeModeInfo mode;
+	drmModeEncoder *encoder;
+	drmModeConnector *connector;
+	int crtc;
+	int pipe;
+	unsigned int current_fb_id;
+	unsigned int fb_ids[2];
+	unsigned long swap_count;
+	struct timeval start;
+};
+
+static void dump_mode(drmModeModeInfo *mode)
+{
+	printf("  %s %d %d %d %d %d %d %d %d %d 0x%x 0x%x %d\n",
+	       mode->name,
+	       mode->vrefresh,
+	       mode->hdisplay,
+	       mode->hsync_start,
+	       mode->hsync_end,
+	       mode->htotal,
+	       mode->vdisplay,
+	       mode->vsync_start,
+	       mode->vsync_end,
+	       mode->vtotal,
+	       mode->flags,
+	       mode->type,
+	       mode->clock);
+}
+
+static void page_flip_handler(int fd, unsigned int frame, unsigned int sec,
+			      unsigned int usec, void *data)
+{
+	struct test_output *o = data;
+	unsigned int new_fb_id;
+	struct timeval end;
+	double t;
+
+	if (o->current_fb_id == o->fb_ids[0])
+		new_fb_id = o->fb_ids[1];
+	else
+		new_fb_id = o->fb_ids[0];
+
+	drmModePageFlip(drm_fd, o->crtc, new_fb_id,
+			DRM_MODE_PAGE_FLIP_EVENT, o);
+	o->current_fb_id = new_fb_id;
+	o->swap_count++;
+	if (o->swap_count == 60) {
+		gettimeofday(&end, NULL);
+		t = end.tv_sec + end.tv_usec * 1e-6 -
+			(o->start.tv_sec + o->start.tv_usec * 1e-6);
+		fprintf(stderr, "freq: %.02fHz\n", o->swap_count / t);
+		o->swap_count = 0;
+		o->start = end;
+	}
+}
+
+static void connector_find_preferred_mode(struct test_output *o, int crtc_id)
+{
+	drmModeConnector *connector;
+	drmModeEncoder *encoder = NULL;
+	int i, j;
+
+	/* First, find the connector & mode */
+	o->mode_valid = 0;
+	o->crtc = 0;
+	connector = drmModeGetConnector(drm_fd, o->id);
+	if (!connector) {
+		fprintf(stderr, "could not get connector %d: %s\n",
+			o->id, strerror(errno));
+		drmModeFreeConnector(connector);
+		return;
+	}
+
+	if (connector->connection != DRM_MODE_CONNECTED) {
+		drmModeFreeConnector(connector);
+		return;
+	}
+
+	if (!connector->count_modes) {
+		fprintf(stderr, "connector %d has no modes\n", o->id);
+		drmModeFreeConnector(connector);
+		return;
+	}
+
+	if (connector->connector_id != o->id) {
+		fprintf(stderr, "connector id doesn't match (%d != %d)\n",
+			connector->connector_id, o->id);
+		drmModeFreeConnector(connector);
+		return;
+	}
+
+	for (j = 0; j < connector->count_modes; j++) {
+		o->mode = connector->modes[j];
+		if (o->mode.type & DRM_MODE_TYPE_PREFERRED) {
+			o->mode_valid = 1;
+			break;
+		}
+	}
+
+	if (!o->mode_valid) {
+		if (connector->count_modes > 0) {
+			/* use the first mode as test mode */
+			o->mode = connector->modes[0];
+			o->mode_valid = 1;
+		}
+		else {
+			fprintf(stderr, "failed to find any modes on connector %d\n",
+				o->id);
+			return;
+		}
+	}
+
+	/* Now get the encoder */
+	for (i = 0; i < connector->count_encoders; i++) {
+		encoder = drmModeGetEncoder(drm_fd, connector->encoders[i]);
+
+		if (!encoder) {
+			fprintf(stderr, "could not get encoder %i: %s\n",
+				resources->encoders[i], strerror(errno));
+			drmModeFreeEncoder(encoder);
+			continue;
+		}
+
+		break;
+	}
+
+	o->encoder = encoder;
+
+	if (i == resources->count_encoders) {
+		fprintf(stderr, "failed to find encoder\n");
+		o->mode_valid = 0;
+		return;
+	}
+
+	/* Find first CRTC not in use */
+	for (i = 0; i < resources->count_crtcs; i++) {
+		if (resources->crtcs[i] != crtc_id)
+			continue;
+		if (resources->crtcs[i] &&
+		    (o->encoder->possible_crtcs & (1<<i))) {
+			o->crtc = resources->crtcs[i];
+			break;
+		}
+	}
+
+	if (!o->crtc) {
+		fprintf(stderr, "could not find requested crtc %d\n", crtc_id);
+		return;
+	}
+
+	o->pipe = i;
+
+	o->connector = connector;
+}
+
+static cairo_surface_t *
+allocate_surface(int fd, uint32_t *handle, int width, int height,
+		 int bpp, int depth, int *_stride)
+{
+	cairo_format_t format;
+	struct drm_i915_gem_set_tiling set_tiling;
+	int size, v, stride;
+
+	/* Round the tiling up to the next power-of-two and the
+	 * region up to the next pot fence size so that this works
+	 * on all generations.
+	 *
+	 * This can still fail if the framebuffer is too large to
+	 * be tiled. But then that failure is expected.
+	 */
+	v = width * bpp / 8;
+	for (stride = 512; stride < v; stride *= 2)
+		;
+
+	v = stride * height;
+	for (size = 1024*1024; size < v; size *= 2)
+		;
+
+	*_stride = stride;
+
+	switch (depth) {
+	case 16:
+		format = CAIRO_FORMAT_RGB16_565;
+		break;
+	case 24:
+		format = CAIRO_FORMAT_RGB24;
+		break;
+#if 0
+	case 30:
+		format = CAIRO_FORMAT_RGB30;
+		break;
+#endif
+	case 32:
+		format = CAIRO_FORMAT_ARGB32;
+		break;
+	default:
+		fprintf(stderr, "bad depth %d\n", depth);
+		return NULL;
+	}
+
+	*handle = gem_create(fd, size);
+
+	set_tiling.handle = *handle;
+	set_tiling.tiling_mode = I915_TILING_X;
+	set_tiling.stride = stride;
+	if (ioctl(fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling)) {
+		fprintf(stderr, "set tiling failed: %s (stride=%d, size=%d)\n",
+			strerror(errno), stride, size);
+		return NULL;
+	}
+
+	fb_ptr = gem_mmap(fd, *handle, size, PROT_READ | PROT_WRITE);
+
+	return cairo_image_surface_create_for_data((unsigned char *)fb_ptr,
+						   format, width, height,
+						   stride);
+}
+
+enum corner {
+	topleft,
+	topright,
+	bottomleft,
+	bottomright,
+};
+
+static void paint_marker(cairo_t *cr, int x, int y, char *str,
+			 enum corner text_location)
+{
+	cairo_text_extents_t extents;
+	int xoff, yoff;
+
+	cairo_set_font_size(cr, 18);
+	cairo_text_extents(cr, str, &extents);
+
+	switch (text_location) {
+	case topleft:
+		xoff = -20;
+		xoff -= extents.width;
+		yoff = -20;
+		break;
+	case topright:
+		xoff = 20;
+		yoff = -20;
+		break;
+	case bottomleft:
+		xoff = -20;
+		xoff -= extents.width;
+		yoff = 20;
+		break;
+	case bottomright:
+		xoff = 20;
+		yoff = 20;
+		break;
+	default:
+		xoff = 0;
+		yoff = 0;
+	}
+
+	cairo_move_to(cr, x, y - 20);
+	cairo_line_to(cr, x, y + 20);
+	cairo_move_to(cr, x - 20, y);
+	cairo_line_to(cr, x + 20, y);
+	cairo_new_sub_path(cr);
+	cairo_arc(cr, x, y, 10, 0, M_PI * 2);
+	cairo_set_line_width(cr, 4);
+	cairo_set_source_rgb(cr, 0, 0, 0);
+	cairo_stroke_preserve(cr);
+	cairo_set_source_rgb(cr, 1, 1, 1);
+	cairo_set_line_width(cr, 2);
+	cairo_stroke(cr);
+
+	cairo_move_to(cr, x + xoff, y + yoff);
+	cairo_text_path(cr, str);
+	cairo_set_source_rgb(cr, 0, 0, 0);
+	cairo_stroke_preserve(cr);
+	cairo_set_source_rgb(cr, 1, 1, 1);
+	cairo_fill(cr);
+}
+
+static void paint_image(cairo_t *cr, const char *file, int width, int height)
+{
+	cairo_surface_t *image;
+	int img_w, img_h;
+	int img_x, img_y;
+
+	image = cairo_image_surface_create_from_png(file);
+
+	img_w = cairo_image_surface_get_width(image);
+	img_h = cairo_image_surface_get_height(image);
+
+	if (img_w > width || img_h > height) {
+		cairo_scale(cr, width/img_w, height/img_h);
+		img_w = img_w * (width / img_w);
+		img_h = img_h * (height / img_h);
+	}
+
+	img_x = (width / 2) - (img_w / 2);
+	img_y = (height / 2) - (img_h / 2);
+
+	cairo_translate(cr, img_x, img_y);
+
+	fprintf(stderr, "drew %dx%d image at %d,%d\n", img_w, img_h,
+		img_x, img_y);
+
+	cairo_set_source_surface(cr, image, 0, 0);
+	cairo_paint(cr);
+	cairo_surface_destroy(image);
+}
+
+/*
+ * Images from:
+ * http://www.docstoc.com/docs/28101658/Make-a-Thaumatrope
+ * listed as public domain.
+ */
+static unsigned int initialize_fb(int fd, int width, int height, int bpp,
+				  int depth, const char *file)
+{
+	cairo_surface_t *surface;
+	cairo_status_t status;
+	cairo_t *cr;
+	uint32_t handle;
+	unsigned int fb_id;
+	int ret, stride;
+	char buf[128];
+
+	surface = allocate_surface(drm_fd, &handle, width, height, bpp, depth,
+				   &stride);
+	if (!surface) {
+		fprintf(stderr, "allocation failed %dx%d\n", width, height);
+		return 0;
+	}
+
+	cr = cairo_create(surface);
+
+	cairo_set_line_cap(cr, CAIRO_LINE_CAP_SQUARE);
+
+	/* Paint corner markers */
+	snprintf(buf, sizeof buf, "(%d, %d)", 0, 0);
+	paint_marker(cr, 0, 0, buf, bottomright);
+	snprintf(buf, sizeof buf, "(%d, %d)", width, 0);
+	paint_marker(cr, width, 0, buf, bottomleft);
+	snprintf(buf, sizeof buf, "(%d, %d)", 0, height);
+	paint_marker(cr, 0, height, buf, topright);
+	snprintf(buf, sizeof buf, "(%d, %d)", width, height);
+	paint_marker(cr, width, height, buf, topleft);
+
+	paint_image(cr, file, width, height);
+
+	status = cairo_status(cr);
+	cairo_destroy(cr);
+	if (status)
+		fprintf(stderr, "failed to draw pretty picture %dx%d: %s\n",
+			width, height, cairo_status_to_string(status));
+
+	ret = drmModeAddFB(drm_fd, width, height, depth, bpp, stride,
+			   handle, &fb_id);
+	cairo_surface_destroy(surface);
+	gem_close(drm_fd, handle);
+
+	if (ret) {
+		fprintf(stderr, "failed to add fb (%dx%d): %s\n",
+			width, height, strerror(errno));
+		return 0;
+	}
+
+	return fb_id;
+}
+
+static void set_mode(struct test_output *o)
+{
+	int ret;
+	int bpp = 32, depth = 24;
+	drmEventContext evctx;
+	int width, height;
+
+	connector_find_preferred_mode(o, resources->crtcs[0]);
+	if (!o->mode_valid)
+		return;
+
+	width = o->mode.hdisplay;
+	height = o->mode.vdisplay;
+
+	o->fb_ids[0] = initialize_fb(drm_fd, width, height, bpp, depth,
+				     "bird-thaumatrope.png");
+	o->fb_ids[1] = initialize_fb(drm_fd, width, height, bpp, depth,
+				     "cage-thaumatrope.png");
+	if (!o->fb_ids[0] || !o->fb_ids[1]) {
+		fprintf(stderr, "failed to create fbs\n");
+		return;
+	}
+
+	fprintf(stdout, "CRTS(%u):",o->crtc);
+	dump_mode(&o->mode);
+	if (drmModeSetCrtc(drm_fd, o->crtc, o->fb_ids[0], 0, 0,
+			   &o->id, 1, &o->mode)) {
+		fprintf(stderr, "failed to set mode (%dx%d@%dHz): %s\n",
+			width, height, o->mode.vrefresh,
+			strerror(errno));
+		return;
+	}
+
+	ret = drmModePageFlip(drm_fd, o->crtc, o->fb_ids[1],
+			      DRM_MODE_PAGE_FLIP_EVENT, o);
+	if (ret) {
+		fprintf(stderr, "failed to page flip: %s\n", strerror(errno));
+		return;
+	}
+	gettimeofday(&o->start, NULL);
+	o->swap_count = 0;
+	o->current_fb_id = o->fb_ids[1];
+
+	memset(&evctx, 0, sizeof evctx);
+	evctx.version = DRM_EVENT_CONTEXT_VERSION;
+	evctx.vblank_handler = NULL;
+	evctx.page_flip_handler = page_flip_handler;
+
+	while (1) {
+		struct timeval timeout = { .tv_sec = 3, .tv_usec = 0 };
+		fd_set fds;
+
+		FD_ZERO(&fds);
+		FD_SET(0, &fds);
+		FD_SET(drm_fd, &fds);
+		ret = select(drm_fd + 1, &fds, NULL, NULL, &timeout);
+
+		if (ret <= 0) {
+			fprintf(stderr, "select timed out or error (ret %d)\n",
+				ret);
+			continue;
+		} else if (FD_ISSET(0, &fds)) {
+			fprintf(stderr, "no fds active, breaking\n");
+			break;
+		}
+
+		drmHandleEvent(drm_fd, &evctx);
+	}
+
+	drmModeFreeEncoder(o->encoder);
+	drmModeFreeConnector(o->connector);
+}
+
+static int run_test(void)
+{
+	struct test_output *connectors;
+	int c;
+
+	resources = drmModeGetResources(drm_fd);
+	if (!resources) {
+		fprintf(stderr, "drmModeGetResources failed: %s\n",
+			strerror(errno));
+		return 0;
+	}
+
+	connectors = calloc(resources->count_connectors,
+			    sizeof(struct test_output));
+	if (!connectors)
+		return 0;
+
+	/* Find any connected displays */
+	for (c = 0; c < resources->count_connectors; c++) {
+		connectors[c].id = resources->connectors[c];
+		set_mode(&connectors[c]);
+	}
+
+	drmModeFreeResources(resources);
+	return 1;
+}
+
+static char optstr[] = "h";
+
+static void usage(char *name)
+{
+	fprintf(stderr, "usage: %s [-h]\n", name);
+	fprintf(stderr, "\t-h: help\n");
+	exit(0);
+}
+
+int main(int argc, char **argv)
+{
+	int c;
+	const char *modules[] = { "i915" };
+	unsigned int i;
+	int ret = 0;
+
+	opterr = 0;
+	while ((c = getopt(argc, argv, optstr)) != -1) {
+		switch (c) {
+		default:
+			fprintf(stderr, "unknown option %c\n", c);
+			/* fall through */
+		case 'h':
+			usage(argv[0]);
+			break;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(modules); i++) {
+		drm_fd = drmOpen(modules[i], NULL);
+		if (drm_fd < 0) {
+			printf("failed to load %s driver.\n", modules[i]);
+			goto out;
+		} else
+			break;
+	}
+
+	if (i == ARRAY_SIZE(modules)) {
+		fprintf(stderr, "failed to load any modules, aborting.\n");
+		ret = -1;
+		goto out_close;
+	}
+
+	run_test();
+
+out_close:
+	drmClose(drm_fd);
+out:
+	return ret;
+}