i-g-t: Adding test case to test background color.

Adding i-g-t test case to test display crtc background color.

v2:
- Added IGT_TEST_DESCRIPTION() (Thomas Wood)
- Added to .gitignore (Thomas Wood)
- Added additional details to function header (Thomas Wood)
- Simplified igt_main (Thomas Wood)

v3:
- rebased to latest master (me)
- took sleep calls out (Daniel)
- use new tiled types when calling igt_create_fb (me)

Signed-off-by: chandra konduru <chandra.konduru@intel.com>
[Thomas: convert test to use igt_simple_main]
Signed-off-by: Thomas Wood <thomas.wood@intel.com>

lib/igt_kms.c

@@ -940,6 +940,22 @@ igt_plane_set_property(igt_plane_t *plane, uint32_t prop_id, uint64_t value)
 				 DRM_MODE_OBJECT_PLANE, prop_id, value);
 }
 
+static bool
+get_crtc_property(int drm_fd, uint32_t crtc_id, const char *name,
+		   uint32_t *prop_id /* out */, uint64_t *value /* out */,
+		   drmModePropertyPtr *prop /* out */)
+{
+	return kmstest_get_property(drm_fd, crtc_id, DRM_MODE_OBJECT_CRTC,
+				    name, prop_id, value, prop);
+}
+
+static void
+igt_crtc_set_property(igt_output_t *output, uint32_t prop_id, uint64_t value)
+{
+	drmModeObjectSetProperty(output->display->drm_fd,
+		output->config.crtc->crtc_id, DRM_MODE_OBJECT_CRTC, prop_id, value);
+}
+
 /*
  * Walk a plane's property list to determine its type.  If we don't
  * find a type property, then the kernel doesn't support universal
@@ -1097,6 +1113,7 @@ void igt_display_init(igt_display_t *display, int drm_fd)
 	igt_assert(display->outputs);
 
 	for (i = 0; i < display->n_outputs; i++) {
+		int j;
 		igt_output_t *output = &display->outputs[i];
 
 		/*
@@ -1108,6 +1125,19 @@ void igt_display_init(igt_display_t *display, int drm_fd)
 		output->display = display;
 
 		igt_output_refresh(output);
+
+		for (j = 0; j < display->n_pipes; j++) {
+			uint64_t prop_value;
+			igt_pipe_t *pipe = &display->pipes[j];
+			if (output->config.crtc) {
+				get_crtc_property(display->drm_fd, output->config.crtc->crtc_id,
+						   "background_color",
+						   &pipe->background_property,
+						   &prop_value,
+						   NULL);
+				pipe->background = (uint32_t)prop_value;
+			}
+		}
 	}
 
 	drmModeFreePlaneResources(plane_resources);
@@ -1527,6 +1557,13 @@ static int igt_output_commit(igt_output_t *output,
 
 	pipe = igt_output_get_driving_pipe(output);
 
+	if (pipe->background_changed) {
+		igt_crtc_set_property(output, pipe->background_property,
+			pipe->background);
+
+		pipe->background_changed = false;
+	}
+
 	for (i = 0; i < pipe->n_planes; i++) {
 		igt_plane_t *plane = &pipe->planes[i];
 
@@ -1794,6 +1831,30 @@ void igt_plane_set_rotation(igt_plane_t *plane, igt_rotation_t rotation)
 	plane->rotation_changed = true;
 }
 
+/**
+ * igt_crtc_set_background:
+ * @pipe: pipe pointer to which background color to be set
+ * @background: background color value in BGR 16bpc
+ *
+ * Sets background color for requested pipe. Color value provided here
+ * will be actually submitted at output commit time via "background_color"
+ * property.
+ * For example to get red as background, set background = 0x00000000FFFF.
+ */
+void igt_crtc_set_background(igt_pipe_t *pipe, uint64_t background)
+{
+	igt_display_t *display = pipe->display;
+
+	LOG(display, "%s.%d: crtc_set_background(%lu)\n",
+	    kmstest_pipe_name(pipe->pipe),
+	    pipe->pipe, background);
+
+	pipe->background = background;
+
+	pipe->background_changed = true;
+}
+
+
 void igt_wait_for_vblank(int drm_fd, enum pipe pipe)
 {
 	drmVBlank wait_vbl;

lib/igt_kms.h

@@ -207,6 +207,9 @@ struct igt_pipe {
 #define IGT_MAX_PLANES	4
 	int n_planes;
 	igt_plane_t planes[IGT_MAX_PLANES];
+	uint64_t background; /* Background color MSB BGR 16bpc LSB */
+	uint32_t background_changed : 1;
+	uint32_t background_property;
 };
 
 typedef struct {
@@ -255,6 +258,7 @@ void igt_plane_set_position(igt_plane_t *plane, int x, int y);
 void igt_plane_set_size(igt_plane_t *plane, int w, int h);
 void igt_plane_set_panning(igt_plane_t *plane, int x, int y);
 void igt_plane_set_rotation(igt_plane_t *plane, igt_rotation_t rotation);
+void igt_crtc_set_background(igt_pipe_t *pipe, uint64_t background);
 
 void igt_wait_for_vblank(int drm_fd, enum pipe pipe);
 

tests/.gitignore

@@ -143,6 +143,7 @@ kms_setmode
 kms_sink_crc_basic
 kms_universal_plane
 kms_vblank
+kms_crtc_background_color
 multi-tests.txt
 pm_lpsp
 pm_rc6_residency

tests/Android.mk

@@ -75,6 +75,7 @@ else
     kms_rotation_crc \
     kms_force_connector \
     kms_flip_event_leak \
+    kms_crtc_background_color \
     kms_pwrite_crc \
     kms_pipe_b_c_ivb
     IGT_LOCAL_CFLAGS += -DANDROID_HAS_CAIRO=0

tests/Makefile.sources

@@ -74,6 +74,7 @@ TESTS_progs_M = \
 	kms_setmode \
 	kms_universal_plane \
 	kms_vblank \
+	kms_crtc_background_color \
 	pm_lpsp \
 	pm_rpm \
 	pm_rps \

tests/kms_crtc_background_color.c

@@ -0,0 +1,194 @@
+/*
+ * Copyright © 2013,2014 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.
+ *
+ */
+
+#include <math.h>
+
+#include "drmtest.h"
+#include "igt_debugfs.h"
+#include "igt_kms.h"
+#include "igt_core.h"
+
+IGT_TEST_DESCRIPTION("Test crtc background color feature");
+
+typedef struct {
+	int gfx_fd;
+	igt_display_t display;
+	struct igt_fb fb;
+	igt_crc_t ref_crc;
+	igt_pipe_crc_t *pipe_crc;
+} data_t;
+
+#define BLACK      0x000000           /* BGR 8bpc */
+#define CYAN       0xFFFF00           /* BGR 8bpc */
+#define PURPLE     0xFF00FF           /* BGR 8bpc */
+#define WHITE      0xFFFFFF           /* BGR 8bpc */
+
+#define BLACK64    0x000000000000     /* BGR 16bpc */
+#define CYAN64     0xFFFFFFFF0000     /* BGR 16bpc */
+#define PURPLE64   0xFFFF0000FFFF     /* BGR 16bpc */
+#define YELLOW64   0x0000FFFFFFFF     /* BGR 16bpc */
+#define WHITE64    0xFFFFFFFFFFFF     /* BGR 16bpc */
+#define RED64      0x00000000FFFF     /* BGR 16bpc */
+#define GREEN64    0x0000FFFF0000     /* BGR 16bpc */
+#define BLUE64     0xFFFF00000000     /* BGR 16bpc */
+
+static void
+paint_background(data_t *data, struct igt_fb *fb, drmModeModeInfo *mode,
+		uint32_t background, double alpha)
+{
+	cairo_t *cr;
+	int w, h;
+	double r, g, b;
+
+	w = mode->hdisplay;
+	h = mode->vdisplay;
+
+	cr = igt_get_cairo_ctx(data->gfx_fd, &data->fb);
+
+	/* Paint with background color */
+	r = (double) (background & 0xFF) / 255.0;
+	g = (double) ((background & 0xFF00) >> 8) / 255.0;
+	b = (double) ((background & 0xFF0000) >> 16) / 255.0;
+	igt_paint_color_alpha(cr, 0, 0, w, h, r, g, b, alpha);
+
+	cairo_destroy(cr);
+}
+
+static void prepare_crtc(data_t *data, igt_output_t *output, enum pipe pipe,
+			igt_plane_t *plane, int opaque_buffer, int plane_color,
+			uint64_t pipe_background_color)
+{
+	drmModeModeInfo *mode;
+	igt_display_t *display = &data->display;
+	int fb_id;
+	double alpha;
+
+	igt_output_set_pipe(output, pipe);
+
+	/* create the pipe_crc object for this pipe */
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = igt_pipe_crc_new(pipe, INTEL_PIPE_CRC_SOURCE_AUTO);
+
+	mode = igt_output_get_mode(output);
+
+	fb_id = igt_create_fb(data->gfx_fd,
+			mode->hdisplay, mode->vdisplay,
+			DRM_FORMAT_XRGB8888,
+			LOCAL_DRM_FORMAT_MOD_NONE, /* tiled */
+			&data->fb);
+	igt_assert(fb_id);
+
+	/* To make FB pixel win with background color, set alpha as full opaque */
+	igt_crtc_set_background(plane->pipe, pipe_background_color);
+	if (opaque_buffer)
+		alpha = 1.0;    /* alpha 1 is fully opque */
+	else
+		alpha = 0.0;    /* alpha 0 is fully transparent */
+	paint_background(data, &data->fb, mode, plane_color, alpha);
+
+	igt_plane_set_fb(plane, &data->fb);
+	igt_display_commit2(display, COMMIT_UNIVERSAL);
+}
+
+static void cleanup_crtc(data_t *data, igt_output_t *output, igt_plane_t *plane)
+{
+	igt_display_t *display = &data->display;
+
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = NULL;
+
+	igt_remove_fb(data->gfx_fd, &data->fb);
+
+	igt_crtc_set_background(plane->pipe, BLACK64);
+	igt_plane_set_fb(plane, NULL);
+	igt_output_set_pipe(output, PIPE_ANY);
+
+	igt_display_commit2(display, COMMIT_UNIVERSAL);
+}
+
+static void test_crtc_background(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	enum pipe pipe;
+	int valid_tests = 0;
+
+	igt_require(data->display.has_universal_planes);
+
+	for_each_connected_output(display, output) {
+		igt_plane_t *plane;
+
+		pipe = output->config.pipe;
+		igt_output_set_pipe(output, pipe);
+
+		plane = igt_output_get_plane(output, IGT_PLANE_PRIMARY);
+		igt_require(plane->pipe->background_property);
+
+		prepare_crtc(data, output, pipe, plane, 1, PURPLE, BLACK64);
+
+		/* Now set background without using a plane, i.e.,
+		 * Disable the plane to let hw background color win blend. */
+		igt_plane_set_fb(plane, NULL);
+		igt_crtc_set_background(plane->pipe, PURPLE64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		/* Try few other background colors */
+		igt_crtc_set_background(plane->pipe, CYAN64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		igt_crtc_set_background(plane->pipe, YELLOW64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		igt_crtc_set_background(plane->pipe, RED64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		igt_crtc_set_background(plane->pipe, GREEN64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		igt_crtc_set_background(plane->pipe, BLUE64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		igt_crtc_set_background(plane->pipe, WHITE64);
+		igt_display_commit2(display, COMMIT_UNIVERSAL);
+
+		valid_tests++;
+		cleanup_crtc(data, output, plane);
+	}
+	igt_require_f(valid_tests, "no valid crtc/connector combinations found\n");
+}
+
+igt_simple_main
+{
+	data_t data = {};
+
+	igt_skip_on_simulation();
+
+	data.gfx_fd = drm_open_any();
+	igt_require_pipe_crc();
+	igt_display_init(&data.display, data.gfx_fd);
+
+	test_crtc_background(&data);
+
+	igt_display_fini(&data.display);
+}