case SLUMINANCE8_ALPHA8: return SLUMINANCE_ALPHA;
case DEPTH_COMPONENT16:
case DEPTH_COMPONENT24:
- case DEPTH_COMPONENT32: return DEPTH_COMPONENT;
+ case DEPTH_COMPONENT32:
+ case DEPTH_COMPONENT32F: return DEPTH_COMPONENT;
default: return pf;
}
}
case RG: return RG32F;
case RGB: return RGB32F;
case RGBA: return RGBA32F;
- case DEPTH_COMPONENT: return DEPTH_COMPONENT32;
+ case DEPTH_COMPONENT: return ARB_depth_buffer_float ? DEPTH_COMPONENT32F : DEPTH_COMPONENT32;
default: throw invalid_argument("get_sized_pixelformat");
}
default:
case RGB32F:
case RGBA32F:
case DEPTH_COMPONENT32:
+ case DEPTH_COMPONENT32F:
return 4;
default:
return 0;
void require_pixelformat(PixelFormat pf)
{
+ /* TODO These checks are only accurate for textures. On OpenGL ES some
+ formats are allowed for render buffers earlier than textures. In particular
+ it's possible to create a 16-bit depth renderbuffer on OpenGL ES 2.0 but
+ depth textures are only available with 3.0 or the OES_depth_texture
+ extension.*/
switch(pf)
{
+ case RGB8:
+ case RGBA8:
+ { static Require _req(OES_required_internalformat); }
+ break;
case RED:
case R8:
case RG:
{ static Require _req(EXT_bgra); }
break;
case DEPTH_COMPONENT:
+ { static Require _req(ARB_depth_texture); }
+ break;
case DEPTH_COMPONENT16:
case DEPTH_COMPONENT24:
case DEPTH_COMPONENT32:
{ static Require _req(ARB_depth_texture); }
+ { static Require _req(OES_required_internalformat); }
+ break;
+ case DEPTH_COMPONENT32F:
+ { static Require _req(ARB_depth_buffer_float); }
+ break;
+ case STENCIL_INDEX:
+ { static Require _req(OES_texture_stencil8); }
break;
default:
break;