void blf_glyph_render(FontBLF *font, GlyphBLF *g, float x, float y)
{
rctf rect;
if ((!g->width) || (!g->height))
return;
if (g->build_tex == 0) {
GlyphCacheBLF *gc = font->glyph_cache;
if (font->max_tex_size == -1)
glGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint *)&font->max_tex_size);
if (gc->cur_tex == BLF_CURTEX_UNSET) {
blf_glyph_cache_texture(font, gc);
gc->x_offs = gc->pad;
gc->y_offs = 0;
}
if (gc->x_offs > (gc->p2_width - gc->max_glyph_width)) {
gc->x_offs = gc->pad;
gc->y_offs += gc->max_glyph_height;
if (gc->y_offs > (gc->p2_height - gc->max_glyph_height)) {
gc->y_offs = 0;
blf_glyph_cache_texture(font, gc);
}
}
g->tex = gc->textures[gc->cur_tex];
g->xoff = gc->x_offs;
g->yoff = gc->y_offs;
/* prevent glTexSubImage2D from failing if the character
* asks for pixels out of bounds, this tends only to happen
* with very small sizes (5px high or less) */
if (UNLIKELY((g->xoff + g->width) > gc->p2_width)) {
g->width -= (g->xoff + g->width) - gc->p2_width;
BLI_assert(g->width > 0);
}
if (UNLIKELY((g->yoff + g->height) > gc->p2_height)) {
g->height -= (g->yoff + g->height) - gc->p2_height;
BLI_assert(g->height > 0);
}
glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBindTexture(GL_TEXTURE_2D, g->tex);
glTexSubImage2D(GL_TEXTURE_2D, 0, g->xoff, g->yoff, g->width, g->height, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap);
glPopClientAttrib();
g->uv[0][0] = ((float)g->xoff) / ((float)gc->p2_width);
g->uv[0][1] = ((float)g->yoff) / ((float)gc->p2_height);
g->uv[1][0] = ((float)(g->xoff + g->width)) / ((float)gc->p2_width);
g->uv[1][1] = ((float)(g->yoff + g->height)) / ((float)gc->p2_height);
/* update the x offset for the next glyph. */
gc->x_offs += (int)BLI_rctf_size_x(&g->box) + gc->pad;
gc->rem_glyphs--;
g->build_tex = 1;
}
blf_glyph_calc_rect(&rect, g, x, y);
if (font->flags & BLF_CLIPPING) {
/* intentionally check clipping without shadow offset */
rctf rect_test = rect;
BLI_rctf_translate(&rect_test, font->pos[0], font->pos[1]);
if (!BLI_rctf_inside_rctf(&font->clip_rec, &rect_test)) {
return;
}
}
if (font->tex_bind_state != g->tex) {
glBindTexture(GL_TEXTURE_2D, (font->tex_bind_state = g->tex));
}
if (font->flags & BLF_SHADOW) {
rctf rect_ofs;
blf_glyph_calc_rect(&rect_ofs, g,
x + (float)font->shadow_x,
y + (float)font->shadow_y);
switch (font->shadow) {
case 3:
blf_texture3_draw(font->shadow_col, g->uv, rect_ofs.xmin, rect_ofs.ymin, rect_ofs.xmax, rect_ofs.ymax);
break;
case 5:
blf_texture5_draw(font->shadow_col, g->uv, rect_ofs.xmin, rect_ofs.ymin, rect_ofs.xmax, rect_ofs.ymax);
break;
default:
glColor4fv(font->shadow_col);
blf_texture_draw(g->uv, rect_ofs.xmin, rect_ofs.ymin, rect_ofs.xmax, rect_ofs.ymax);
break;
}
glColor4fv(font->orig_col);
}
switch (font->blur) {
case 3:
blf_texture3_draw(font->orig_col, g->uv, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
break;
case 5:
blf_texture5_draw(font->orig_col, g->uv, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
break;
default:
blf_texture_draw(g->uv, rect.xmin, rect.ymin, rect.xmax, rect.ymax);
break;
}
return;
}
int blf_glyph_render(FontBLF *font, GlyphBLF *g, float x, float y)
{
float dx, dx1;
float y1, y2;
float xo, yo;
if ((!g->width) || (!g->height))
return 1;
if (g->build_tex == 0) {
GlyphCacheBLF *gc = font->glyph_cache;
if (font->max_tex_size == -1)
glGetIntegerv(GL_MAX_TEXTURE_SIZE, (GLint *)&font->max_tex_size);
if (gc->cur_tex == -1) {
blf_glyph_cache_texture(font, gc);
gc->x_offs = gc->pad;
gc->y_offs = gc->pad;
}
if (gc->x_offs > (gc->p2_width - gc->max_glyph_width)) {
gc->x_offs = gc->pad;
gc->y_offs += gc->max_glyph_height;
if (gc->y_offs > (gc->p2_height - gc->max_glyph_height)) {
gc->y_offs = gc->pad;
blf_glyph_cache_texture(font, gc);
}
}
g->tex = gc->textures[gc->cur_tex];
g->xoff = gc->x_offs;
g->yoff = gc->y_offs;
glPushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glBindTexture(GL_TEXTURE_2D, g->tex);
glTexSubImage2D(GL_TEXTURE_2D, 0, g->xoff, g->yoff, g->width, g->height, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap);
glPopClientAttrib();
g->uv[0][0] = ((float)g->xoff) / ((float)gc->p2_width);
g->uv[0][1] = ((float)g->yoff) / ((float)gc->p2_height);
g->uv[1][0] = ((float)(g->xoff + g->width)) / ((float)gc->p2_width);
g->uv[1][1] = ((float)(g->yoff + g->height)) / ((float)gc->p2_height);
/* update the x offset for the next glyph. */
gc->x_offs += (int)(g->box.xmax - g->box.xmin + gc->pad);
gc->rem_glyphs--;
g->build_tex = 1;
}
xo = 0.0f;
yo = 0.0f;
if (font->flags & BLF_SHADOW) {
xo = x;
yo = y;
x += font->shadow_x;
y += font->shadow_y;
}
dx = floor(x + g->pos_x);
dx1 = dx + g->width;
y1 = y + g->pos_y;
y2 = y + g->pos_y - g->height;
if (font->flags & BLF_CLIPPING) {
if (!BLI_in_rctf(&font->clip_rec, dx + font->pos[0], y1 + font->pos[1]))
return 0;
if (!BLI_in_rctf(&font->clip_rec, dx + font->pos[0], y2 + font->pos[1]))
return 0;
if (!BLI_in_rctf(&font->clip_rec, dx1 + font->pos[0], y2 + font->pos[1]))
return 0;
if (!BLI_in_rctf(&font->clip_rec, dx1 + font->pos[0], y1 + font->pos[1]))
return 0;
}
if (font->tex_bind_state != g->tex) {
glBindTexture(GL_TEXTURE_2D, (font->tex_bind_state = g->tex));
}
if (font->flags & BLF_SHADOW) {
switch (font->shadow) {
case 3:
blf_texture3_draw(font->shadow_col, g->uv, dx, y1, dx1, y2);
break;
case 5:
blf_texture5_draw(font->shadow_col, g->uv, dx, y1, dx1, y2);
break;
default:
glColor4fv(font->shadow_col);
blf_texture_draw(g->uv, dx, y1, dx1, y2);
break;
}
glColor4fv(font->orig_col);
x = xo;
y = yo;
dx = floor(x + g->pos_x);
dx1 = dx + g->width;
y1 = y + g->pos_y;
y2 = y + g->pos_y - g->height;
}
switch (font->blur) {
case 3:
blf_texture3_draw(font->orig_col, g->uv, dx, y1, dx1, y2);
break;
case 5:
blf_texture5_draw(font->orig_col, g->uv, dx, y1, dx1, y2);
break;
default:
blf_texture_draw(g->uv, dx, y1, dx1, y2);
break;
}
return 1;
}