unsigned int iV_GetCountedTextWidth(const char *string, size_t string_length)
{
float boundingbox[8];
float pixel_width, point_width;
glcMeasureCountedString(GL_FALSE, string_length, string);
if (!glcGetStringMetric(GLC_BOUNDS, boundingbox))
{
debug(LOG_ERROR, "Couldn't retrieve a bounding box for the string \"%s\" of length %u", string, (unsigned int)string_length);
return 0;
}
point_width = getGLCPointWidth(boundingbox);
pixel_width = getGLCPointToPixel(point_width);
return (unsigned int)pixel_width;
}
int main(int argc, char **argv) {
GLint ctx;
GLCenum err;
GLint length = 0;
GLint i, j, n;
GLint font = 0;
GLfloat baseline1[4], baseline2[4];
GLfloat boundingBox1[8], boundingBox2[8];
GLfloat v1, v2, norm, area;
/* Needed to initialize an OpenGL context */
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutCreateWindow("test7");
ctx = glcGenContext();
CheckError();
glcContext(ctx);
CheckError();
length = glcMeasureCountedString(GL_TRUE, strlen(string)-1, string);
CheckError();
if ((!length) || (length != (strlen(string)-1))) {
printf("glcMeasureString() failed to measure %d characters"
" (%d measured instead)\n", (int)strlen(string), length);
return -1;
}
n = glcGeti(GLC_MEASURED_CHAR_COUNT);
CheckError();
if (length != n) {
printf("glcGeti(GLC_MEASURED_CHAR_COUNT) == %d is not consistent with the"
" value returned by glcMeasureString() == %d\n", n, length);
return -1;
}
length = glcMeasureString(GL_TRUE, string);
CheckError();
if ((!length) || (length != strlen(string))) {
printf("glcMeasureString() failed to measure %d characters"
" (%d measured instead)\n", (int)strlen(string), length);
return -1;
}
n = glcGeti(GLC_MEASURED_CHAR_COUNT);
CheckError();
if (length != n) {
printf("glcGeti(GLC_MEASURED_CHAR_COUNT) == %d is not consistent with the"
" value returned by glcMeasureString() == %d\n", n, length);
return -1;
}
for (i = 0; i < strlen(string); i++) {
if (!glcGetCharMetric(string[i], GLC_BASELINE, baseline1)) {
printf("Failed to measure the baseline of the character %c\n",
string[i]);
return -1;
}
CheckError();
if (!glcGetStringCharMetric(i, GLC_BASELINE, baseline2)) {
printf("Failed to get the baseline of the %dth character of the string"
" %s\n", i, string);
return -1;
}
CheckError();
for (j = 0; j < 2; j++) {
v1 = fabs(baseline1[j + 2] - baseline1[j]);
v2 = fabs(baseline2[j + 2] - baseline2[j]);
norm = v1 > v2 ? v1 : v2;
if (fabs(v1 - v2) > EPSILON * norm) {
printf("Baseline values differ [rank %d char %d] %f (char),"
" %f (string)\n", j, i, v1, v2);
return -1;
}
}
if (!glcGetCharMetric(string[i], GLC_BOUNDS, boundingBox1)) {
printf("Failed to measure the bounding box of the character %c\n",
string[i]);
return -1;
}
CheckError();
if (!glcGetStringCharMetric(i, GLC_BOUNDS, boundingBox2)) {
printf("Failed to get the bounding box of the %dth character of the"
" string %s\n", i, string);
return -1;
}
CheckError();
for (j = 0; j < 6; j++) {
v1 = fabs(boundingBox1[j + 2] - boundingBox1[j]);
v2 = fabs(boundingBox2[j + 2] - boundingBox2[j]);
norm = v1 > v2 ? v1 : v2;
if (fabs(v1 - v2) > EPSILON * norm) {
printf("Bounding Box values differ [rank %d char %d] %f (char),"
" %f (string)", j, i, v1, v2);
return -1;
}
}
}
if (!glcGeti(GLC_FONT_COUNT)) {
printf("GLC_FONT_LIST is empty\n");
return -1;
}
CheckError();
if (!glcGeti(GLC_CURRENT_FONT_COUNT)) {
printf("GLC_CURRENT_FONT_LIST is empty\n");
return -1;
}
CheckError();
if (!glcGetMaxCharMetric(GLC_BASELINE, baseline1)) {
printf("Failed to get the max baseline of the current fonts\n");
return -1;
}
CheckError();
v1 = fabs(baseline1[1]);
v2 = fabs(baseline1[3]);
norm = v1 > v2 ? v1 : v2;
if (fabs(v1 - v2) < EPSILON * norm) {
v1 = fabs(baseline1[0]);
v2 = fabs(baseline1[2]);
norm = v1 > v2 ? v1 : v2;
if ((fabs(v1 - v2) < EPSILON * norm) || (baseline1[2] < baseline1[0])) {
printf("Right and left side of the max baseline are swapped\n");
printf("%f %f %f %f\n", baseline1[0], baseline1[1], baseline1[2],
baseline1[3]);
font = glcGetListi(GLC_FONT_LIST, 0);
printf("Family : %s\n", (char*)glcGetFontc(font, GLC_FAMILY));
printf("Face : %s\n", (char*)glcGetFontFace(font));
return -1;
}
}
if (!glcGetMaxCharMetric(GLC_BOUNDS, boundingBox1)) {
printf("Failed to get the max bounding box of the current fonts\n");
return -1;
}
CheckError();
area = 0.;
for (i = 0; i < 3; i++) {
area += boundingBox1[2*i] * boundingBox1[2*(i+1)+1]
- boundingBox1[2*(i+1)] * boundingBox1[2*i+1];
}
if (fabs(area * .5) < EPSILON) {
printf("Max area of the characters is null\n");
return -1;
}
/* Regression test for bug #1821219 (glcGetCharMetric randomly crashes when
* requesting measurement for the space character).
*/
for (i = 0; i < glcGeti(GLC_MASTER_COUNT); i++) {
GLint font = glcGenFontID();
if (!glcNewFontFromMaster(font, i)) {
printf("Can not get a font from master %s\n",
(char*)glcGetMasterc(i, GLC_FAMILY));
return -1;
}
CheckError();
glcFont(font);
CheckError();
if (!glcGetFontMap(font, ' ')) {
printf("INFO : Family %s %s has no space character\n",
(char*)glcGetFontc(font, GLC_FAMILY), (char*)glcGetFontFace(font));
continue;
}
if (!glcGetCharMetric(' ', GLC_BOUNDS, boundingBox1)) {
printf("Failed to get the bounding box of the space character\n");
printf("Family : %s\n", (char*)glcGetFontc(font, GLC_FAMILY));
printf("Face : %s\n", (char*)glcGetFontFace(font));
return -1;
}
CheckError();
if (!glcGetCharMetric(' ', GLC_BASELINE, baseline1)) {
printf("Failed to get the baseline of the space character\n");
printf("Family : %s\n", (char*)glcGetFontc(font, GLC_FAMILY));
printf("Face : %s\n", (char*)glcGetFontFace(font));
return -1;
}
CheckError();
v1 = fabs(baseline1[1]);
v2 = fabs(baseline1[3]);
norm = v1 > v2 ? v1 : v2;
if (fabs(v1 - v2) < EPSILON * norm) {
v1 = fabs(baseline1[0]);
v2 = fabs(baseline1[2]);
norm = v1 > v2 ? v1 : v2;
if ((fabs(v1 - v2) < EPSILON * norm) || (baseline1[2] < baseline1[0])) {
printf("Right and left side of the baseline are swapped\n");
printf("%f %f %f %f\n", baseline1[0], baseline1[1], baseline1[2],
baseline1[3]);
printf("Family : %s\n", (char*)glcGetFontc(font, GLC_FAMILY));
printf("Face : %s\n", (char*)glcGetFontFace(font));
return -1;
}
}
}
glcDeleteContext(ctx);
glcContext(0);
printf("Tests successful\n");
return 0;
}
