HdSimpleTextureResource::HdSimpleTextureResource(
GlfTextureHandleRefPtr const &textureHandle, bool isPtex,
HdWrap wrapS, HdWrap wrapT,
HdMinFilter minFilter, HdMagFilter magFilter)
: _textureHandle(textureHandle)
, _texture(textureHandle->GetTexture())
, _borderColor(0.0,0.0,0.0,0.0)
, _maxAnisotropy(16.0)
, _sampler(0)
, _isPtex(isPtex)
{
if (!glGenSamplers) { // GL initialization guard for headless unit test
return;
}
// When we are not using Ptex we will use samplers,
// that includes both, bindless textures and no-bindless textures
if (!_isPtex) {
// It is possible the texture provides wrap modes itself, in that
// case we will use the wrap modes provided by the texture
GLenum fwrapS = HdConversions::GetWrap(wrapS);
GLenum fwrapT = HdConversions::GetWrap(wrapT);
VtDictionary txInfo = _texture->GetTextureInfo();
if (VtDictionaryIsHolding<GLuint>(txInfo, "wrapModeS")) {
fwrapS = VtDictionaryGet<GLuint>(txInfo, "wrapModeS");
}
if (VtDictionaryIsHolding<GLuint>(txInfo, "wrapModeT")) {
fwrapT = VtDictionaryGet<GLuint>(txInfo, "wrapModeT");
}
GLenum fminFilter = HdConversions::GetMinFilter(minFilter);
GLenum fmagFilter = HdConversions::GetMagFilter(magFilter);
if (!_texture->IsMinFilterSupported(fminFilter)) {
fminFilter = GL_NEAREST;
}
if (!_texture->IsMagFilterSupported(fmagFilter)) {
fmagFilter = GL_NEAREST;
}
glGenSamplers(1, &_sampler);
glSamplerParameteri(_sampler, GL_TEXTURE_WRAP_S, fwrapS);
glSamplerParameteri(_sampler, GL_TEXTURE_WRAP_T, fwrapT);
glSamplerParameteri(_sampler, GL_TEXTURE_MIN_FILTER, fminFilter);
glSamplerParameteri(_sampler, GL_TEXTURE_MAG_FILTER, fmagFilter);
glSamplerParameterf(_sampler, GL_TEXTURE_MAX_ANISOTROPY_EXT, _maxAnisotropy);
glSamplerParameterfv(_sampler, GL_TEXTURE_BORDER_COLOR, _borderColor.GetArray());
}
bool bindlessTexture =
HdRenderContextCaps::GetInstance().bindlessTextureEnabled;
if (bindlessTexture) {
size_t handle = GetTexelsTextureHandle();
if (handle) {
if (!glIsTextureHandleResidentNV(handle)) {
glMakeTextureHandleResidentNV(handle);
}
}
if (_isPtex) {
handle = GetLayoutTextureHandle();
if (handle) {
if (!glIsTextureHandleResidentNV(handle)) {
glMakeTextureHandleResidentNV(handle);
}
}
}
}
}
bool isResident() const {
assert(m_nHandle);
return glIsTextureHandleResidentNV(m_nHandle);
}
JNIEXPORT jboolean JNICALL Java_org_lwjgl_opengles_NVBindlessTexture_glIsTextureHandleResidentNV(JNIEnv *__env, jclass clazz, jlong handle) {
glIsTextureHandleResidentNVPROC glIsTextureHandleResidentNV = (glIsTextureHandleResidentNVPROC)tlsGetFunction(598);
UNUSED_PARAM(clazz)
return (jboolean)glIsTextureHandleResidentNV(handle);
}