/*
================
R_DrawChar
Draws one variable sized graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void R_DrawChar (float x, float y, int32_t num, float scale,
int32_t red, int32_t green, int32_t blue, int32_t alpha, qboolean italic, qboolean last)
{
int32_t row, col, i;
float frow, fcol, size, cscale, italicAdd;
vec2_t texCoord[4], verts[4];
qboolean addChar = true;
num &= 255;
if (alpha > 255)
alpha = 255;
else if (alpha < 1)
alpha = 1;
if ((num & 127) == 32) // space
addChar = false;
if (y <= -(scale * DEFAULT_FONT_SIZE)) // totally off screen
addChar = false;
row = num >> 4;
col = num&15;
frow = row*0.0625;
fcol = col*0.0625;
size = 0.0625;
cscale = scale * DEFAULT_FONT_SIZE;
italicAdd = (italic) ? (cscale*0.25) : 0;
if (addChar)
{
Vector2Set(texCoord[0], fcol, frow);
Vector2Set(texCoord[1], fcol + size, frow);
Vector2Set(texCoord[2], fcol + size, frow + size);
Vector2Set(texCoord[3], fcol, frow + size);
Vector2Set(verts[0], x+italicAdd, y);
Vector2Set(verts[1], x+cscale+italicAdd, y);
Vector2Set(verts[2], x+cscale-italicAdd, y+cscale);
Vector2Set(verts[3], x-italicAdd, y+cscale);
if (char_count == 0)
rb_vertex = rb_index = 0;
if (rb_vertex + 4 >= MAX_VERTICES || rb_index + 6 >= MAX_INDICES)
R_FlushChars ();
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+1;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+0;
indexArray[rb_index++] = rb_vertex+2;
indexArray[rb_index++] = rb_vertex+3;
for (i=0; i<4; i++) {
VA_SetElem2(texCoordArray[0][rb_vertex], texCoord[i][0], texCoord[i][1]);
VA_SetElem3(vertexArray[rb_vertex], verts[i][0], verts[i][1], 0);
VA_SetElem4(colorArray[rb_vertex], red*DIV255, green*DIV255, blue*DIV255, alpha*DIV255);
rb_vertex++;
}
char_count++;
}
if (last)
R_FlushChars ();
}
/*
================
R_DrawChar
Draws one variable sized graphics character with 0 being transparent.
It can be clipped to the top of the screen to allow the console to be
smoothly scrolled off.
================
*/
void R_DrawChar (float x, float y, int32_t num, float scale,
int32_t red, int32_t green, int32_t blue, int32_t alpha, qboolean italic, qboolean last)
{
int32_t row, col;
float frow, fcol, size, cscale, italicAdd;
qboolean addChar = true;
const vec_t r = min(red, 255)*DIV255;
const vec_t g = min(green, 255)*DIV255;
const vec_t b = min(blue, 255)*DIV255;
const vec_t a = max(min(alpha, 255), 1)*DIV255;
const vec4_t color[4] = {
{r,g,b,a},
{r,g,b,a},
{r,g,b,a},
{r,g,b,a}
};
num &= 255;
if ((num & 127) == 32) // space
addChar = false;
if (y <= -(scale * DEFAULT_FONT_SIZE)) // totally off screen
addChar = false;
row = num >> 4;
col = num&15;
frow = row*0.0625;
fcol = col*0.0625;
size = 0.0625;
cscale = scale * DEFAULT_FONT_SIZE;
italicAdd = (italic) ? (cscale*0.25) : 0;
if (addChar)
{
if (char_count == 0)
rb_vertex = rb_index = 0;
if (rb_vertex + 4 >= MAX_VERTICES || rb_index + 6 >= MAX_INDICES)
R_FlushChars ();
indexArray[rb_index] = rb_vertex+0;
indexArray[rb_index+1] = rb_vertex+1;
indexArray[rb_index+2] = rb_vertex+2;
indexArray[rb_index+3] = rb_vertex+0;
indexArray[rb_index+4] = rb_vertex+2;
indexArray[rb_index+5] = rb_vertex+3;
rb_index += 6;
VA_SetElem2(texCoordArray[0][rb_vertex], fcol, frow);
VA_SetElem2(texCoordArray[0][rb_vertex+1], fcol + size, frow);
VA_SetElem2(texCoordArray[0][rb_vertex+2], fcol + size, frow + size);
VA_SetElem2(texCoordArray[0][rb_vertex+3], fcol, frow + size);
VA_SetElem3(vertexArray[rb_vertex], x+italicAdd, y, 0);
VA_SetElem3(vertexArray[rb_vertex+1], x+cscale+italicAdd, y, 0);
VA_SetElem3(vertexArray[rb_vertex+2], x+cscale-italicAdd, y+cscale, 0);
VA_SetElem3(vertexArray[rb_vertex+3], x-italicAdd, y+cscale, 0);
memcpy(colorArray[rb_vertex], color, sizeof(vec4_t) * 4);
rb_vertex += 4;
char_count++;
}
if (last)
R_FlushChars ();
}
