added test to sort regressions like php #43073 (TrueType bounding box is wrong for angle<>0)

tests/CMakeLists.txt

@@ -42,6 +42,7 @@ if (BUILD_TEST)
 		gdimagepixelate
 		gdimagerectangle
 		gdimagesetpixel
+		gdimagestringft
 		gdimagestringftex
 		gdtiled
 		gif

tests/Makefile.am

@@ -21,6 +21,7 @@ SUBDIRS = gdtest \
 		gdimagepixelate \
 		gdimagerectangle \
 		gdimagesetpixel \
+		gdimagestringft \
 		gdimagestringftex \
 		gdtiled \
 		gif \

tests/gdimagestringft/CMakeLists.txt

@@ -0,0 +1,10 @@
+SET(TESTS_FILES
+	gdimagestringft_bbox
+)
+
+FOREACH(test_name ${TESTS_FILES})
+	add_executable(${test_name} "${test_name}.c")
+	target_link_libraries (${test_name} ${GDTESTS_TARGET_LINK})
+	get_target_property(test_path ${test_name} LOCATION)
+	ADD_TEST(${test_name} ${test_path})
+ENDFOREACH(test_name)

tests/gdimagestringft/Makefile.am

@@ -0,0 +1,3 @@
+## Process this file with automake to produce Makefile.in -*-Makefile-*-
+
+EXTRA_DIST = CMakeLists.txt gdimagestringft_bbox.c

tests/gdimagestringft/gdimagestringft_bbox.c

@@ -0,0 +1,80 @@
+#include "gd.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include "gdtest.h"
+
+#define PI 3.141592
+#define DELTA (PI/8)
+
+static int EXPECT[16][8] = {
+	{498, 401, 630, 401, 630, 374, 498, 374},
+	{491, 364, 613, 313, 602, 288, 481, 338},
+	{470, 332, 563, 239, 544, 219, 451, 312},
+	{438, 310, 488, 189, 463, 178, 412, 300},
+	{401, 303, 401, 171, 374, 171, 374, 303},
+	{365, 310, 314, 188, 289, 199, 339, 320},
+	{334, 331, 241, 238, 221, 257, 314, 350},
+	{313, 362, 192, 312, 181, 337, 303, 388},
+	{306, 398, 174, 398, 174, 425, 306, 425},
+	{313, 433, 191, 484, 202, 509, 323, 459},
+	{333, 463, 240, 556, 259, 576, 352, 483},
+	{363, 484, 313, 605, 338, 616, 389, 494},
+	{398, 490, 398, 622, 425, 622, 425, 490},
+	{432, 483, 483, 605, 508, 594, 458, 473},
+	{461, 464, 554, 557, 574, 538, 481, 445},
+	{481, 435, 602, 485, 613, 460, 491, 409},
+};
+
+int main()
+{
+	char path[2048];
+	gdImagePtr im;
+	int bg, black;
+	double cos_t, sin_t;
+	int x, y, temp;
+	int i, j;
+	int brect[8];
+	int error = 0;
+	FILE *fp;
+
+	sprintf(path, "%s/freetype/DejaVuSans.ttf", GDTEST_TOP_DIR);
+	im = gdImageCreate(800, 800);
+	bg = gdImageColorAllocate(im, 0xFF, 0xFF, 0xFF);
+	black = gdImageColorAllocate(im, 0, 0, 0);
+	cos_t = cos(DELTA);
+	sin_t = sin(DELTA);
+	x = 100;
+	y = 0;
+	for (i = 0; i < 16; i++) {
+		if (gdImageStringFT(im, brect, black, path, 24, DELTA*i, 400+x, 400+y, "ABCDEF")) {
+			error = 1;
+			goto done;
+		}
+		for (j = 0; j < 8; j++) {
+			if (brect[j] != EXPECT[i][j]) {
+				printf("(%d, %d) (%d, %d) (%d, %d) (%d, %d) expected, but (%d, %d) (%d, %d) (%d, %d) (%d, %d)\n",
+					   EXPECT[i][0], EXPECT[i][1], EXPECT[i][2], EXPECT[i][3],
+					   EXPECT[i][4], EXPECT[i][5], EXPECT[i][6], EXPECT[i][7],
+					   brect[0], brect[1], brect[2], brect[3],
+					   brect[4], brect[5], brect[6], brect[7]);
+				error = 1;
+				goto done;
+			}
+		}
+		gdImagePolygon(im, (gdPointPtr)brect, 4, black);
+		gdImageFilledEllipse(im, brect[0], brect[1], 8, 8, black);
+		temp = (int)(cos_t * x + sin_t * y);
+		y = (int)(cos_t * y - sin_t * x);
+		x = temp;
+	}
+	fp = fopen("gdimagestringft_bbox.png", "wb");
+	if (!fp) {
+		error = 1;
+		goto done;
+	}
+	gdImagePng(im, fp);
+	fclose(fp);
+ done:
+	gdImageDestroy(im);
+	return error;
+}