/*
=============
DeformText
Change a polygon into a bunch of text polygons
=============
*/
void DeformText(const char *text)
{
int i;
vec3_t origin, width, height;
int len;
int ch;
float bottom, top;
vec3_t mid;
height[0] = 0;
height[1] = 0;
height[2] = -1;
CrossProduct(tess.normals[0], height, width);
// find the midpoint of the box
VectorClear(mid);
bottom = 999999;
top = -999999;
for(i = 0; i < 4; i++)
{
VectorAdd(tess.xyz[i], mid, mid);
if(tess.xyz[i][2] < bottom)
{
bottom = tess.xyz[i][2];
}
if(tess.xyz[i][2] > top)
{
top = tess.xyz[i][2];
}
}
VectorScale(mid, 0.25f, origin);
// determine the individual character size
height[0] = 0;
height[1] = 0;
height[2] = (top - bottom) * 0.5f;
VectorScale(width, height[2] * -0.75f, width);
// determine the starting position
len = strlen(text);
VectorMA(origin, (len - 1), width, origin);
// clear the shader indexes
tess.multiDrawPrimitives = 0;
tess.numIndexes = 0;
tess.numVertexes = 0;
// draw each character
for(i = 0; i < len; i++)
{
ch = text[i];
ch &= 255;
if(ch != ' ')
{
int row, col;
float frow, fcol, size;
row = ch >> 4;
col = ch & 15;
frow = row * 0.0625f;
fcol = col * 0.0625f;
size = 0.0625f;
Tess_AddQuadStampExt(origin, width, height, colorWhite, fcol, frow, fcol + size, frow + size);
}
VectorMA(origin, -2, width, origin);
}
/*
==============
Tess_AddQuadStamp
==============
*/
void Tess_AddQuadStamp( vec3_t origin, vec3_t left, vec3_t up, const vec4_t color )
{
Tess_AddQuadStampExt( origin, left, up, color, 0, 0, 1, 1 );
}
