video: Add a test for 16bpp BMP files

Add a compressed 16bpp BMP file and a test to cover this.

Signed-off-by: Simon Glass <sjg@chromium.org>

.gitattributes

@@ -3,3 +3,4 @@
 # Denote all files that are truly binary and should not be modified
 *.bmp binary
 *.ttf binary
+*.gz binary

configs/sandbox_defconfig

@@ -285,6 +285,7 @@ CONFIG_OSD=y
 CONFIG_SANDBOX_OSD=y
 CONFIG_SPLASH_SCREEN_ALIGN=y
 CONFIG_VIDEO_BMP_RLE8=y
+CONFIG_BMP_16BPP=y
 CONFIG_W1=y
 CONFIG_W1_GPIO=y
 CONFIG_W1_EEPROM=y

configs/sandbox_flattree_defconfig

@@ -198,6 +198,7 @@ CONFIG_VIDEO_SANDBOX_SDL=y
 CONFIG_OSD=y
 CONFIG_SANDBOX_OSD=y
 CONFIG_VIDEO_BMP_RLE8=y
+CONFIG_BMP_16BPP=y
 CONFIG_CMD_DHRYSTONE=y
 CONFIG_RSA_VERIFY_WITH_PKEY=y
 CONFIG_TPM=y

test/dm/video.c

@@ -7,6 +7,7 @@
 #include <common.h>
 #include <bzlib.h>
 #include <dm.h>
+#include <gzip.h>
 #include <log.h>
 #include <malloc.h>
 #include <mapmem.h>
@@ -339,6 +340,29 @@ static int dm_test_video_bmp8(struct unit_test_state *uts)
 }
 DM_TEST(dm_test_video_bmp8, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 
+/* Test drawing a bitmap file on a 16bpp display */
+static int dm_test_video_bmp16(struct unit_test_state *uts)
+{
+	ulong src, src_len = ~0UL;
+	uint dst_len = ~0U;
+	struct udevice *dev;
+	ulong dst = 0x10000;
+
+	ut_assertok(uclass_find_first_device(UCLASS_VIDEO, &dev));
+	ut_assertnonnull(dev);
+	ut_assertok(sandbox_sdl_set_bpp(dev, VIDEO_BPP16));
+
+	ut_assertok(read_file(uts, "tools/logos/denx-16bpp.bmp.gz", &src));
+	ut_assertok(gunzip(map_sysmem(dst, 0), dst_len, map_sysmem(src, 0),
+			   &src_len));
+
+	ut_assertok(video_bmp_display(dev, dst, 0, 0, false));
+	ut_asserteq(3700, compress_frame_buffer(uts, dev));
+
+	return 0;
+}
+DM_TEST(dm_test_video_bmp16, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
 /* Test drawing a bitmap file on a 32bpp display */
 static int dm_test_video_bmp32(struct unit_test_state *uts)
 {