static void drawText(float x, float y, const char *text, int align, unsigned int col)
{
if (!g_ftex) return;
if (!text) return;
if (align == IMGUI_ALIGN_CENTER)
x -= getTextLength(g_cdata, text)/2;
else if (align == IMGUI_ALIGN_RIGHT)
x -= getTextLength(g_cdata, text);
glColor4ub(col&0xff, (col>>8)&0xff, (col>>16)&0xff, (col>>24)&0xff);
glEnable(GL_TEXTURE_2D);
// assume orthographic projection with units = screen pixels, origin at top left
glBindTexture(GL_TEXTURE_2D, g_ftex);
glBegin(GL_TRIANGLES);
const float ox = x;
while (*text)
{
int c = (unsigned char)*text;
if (c == '\t')
{
for (int i = 0; i < 4; ++i)
{
if (x < g_tabStops[i]+ox)
{
x = g_tabStops[i]+ox;
break;
}
}
}
else if (c >= 32 && c < 128)
{
stbtt_aligned_quad q;
getBakedQuad(g_cdata, 512,512, c-32, &x,&y,&q);
glTexCoord2f(q.s0, q.t0);
glVertex2f(q.x0, q.y0);
glTexCoord2f(q.s1, q.t1);
glVertex2f(q.x1, q.y1);
glTexCoord2f(q.s1, q.t0);
glVertex2f(q.x1, q.y0);
glTexCoord2f(q.s0, q.t0);
glVertex2f(q.x0, q.y0);
glTexCoord2f(q.s0, q.t1);
glVertex2f(q.x0, q.y1);
glTexCoord2f(q.s1, q.t1);
glVertex2f(q.x1, q.y1);
}
++text;
}
glEnd();
glDisable(GL_TEXTURE_2D);
}
void sRenderString(float x, float y, const char *text, TextAlign align, unsigned int col)
{
if (!g_ftex) return;
if (!text) return;
if (align == TEXT_ALIGN_CENTER)
x -= getTextLength(g_cdata, text) / 2;
else if (align == TEXT_ALIGN_RIGHT)
x -= getTextLength(g_cdata, text);
float r = (float)(col & 0xff) / 255.f;
float g = (float)((col >> 8) & 0xff) / 255.f;
float b = (float)((col >> 16) & 0xff) / 255.f;
float a = (float)((col >> 24) & 0xff) / 255.f;
// assume orthographic projection with units = screen pixels, origin at top left
glBindTexture(GL_TEXTURE_2D, g_ftex);
const float ox = x;
while (*text)
{
int c = (unsigned char)*text;
if (c == '\t')
{
for (int i = 0; i < 4; ++i)
{
if (x < g_tabStops[i] + ox)
{
x = g_tabStops[i] + ox;
break;
}
}
}
else if (c >= 32 && c < 128)
{
stbtt_aligned_quad q;
getBakedQuad(g_cdata, 512, 512, c - 32, &x, &y, &q);
float v[12] = {
q.x0, q.y0,
q.x1, q.y1,
q.x1, q.y0,
q.x0, q.y0,
q.x0, q.y1,
q.x1, q.y1,
};
float uv[12] = {
q.s0, q.t0,
q.s1, q.t1,
q.s1, q.t0,
q.s0, q.t0,
q.s0, q.t1,
q.s1, q.t1,
};
float c[24] = {
r, g, b, a,
r, g, b, a,
r, g, b, a,
r, g, b, a,
r, g, b, a,
r, g, b, a,
};
glBindVertexArray(g_vao);
glBindBuffer(GL_ARRAY_BUFFER, g_vbos[0]);
glBufferData(GL_ARRAY_BUFFER, 12 * sizeof(float), v, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, g_vbos[1]);
glBufferData(GL_ARRAY_BUFFER, 12 * sizeof(float), uv, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, g_vbos[2]);
glBufferData(GL_ARRAY_BUFFER, 24 * sizeof(float), c, GL_STATIC_DRAW);
glDrawArrays(GL_TRIANGLES, 0, 6);
}
++text;
}
//glEnd();
//glDisable(GL_TEXTURE_2D);
}
