void OGLESTexture3D::CreateHWResource(ElementInitData const * init_data)
{
uint32_t texel_size = NumFormatBytes(format_);
GLint glinternalFormat;
GLenum glformat;
GLenum gltype;
OGLESMapping::MappingFormat(glinternalFormat, glformat, gltype, format_);
glBindTexture(target_type_, texture_);
for (uint32_t level = 0; level < num_mip_maps_; ++ level)
{
uint32_t const w = this->Width(level);
uint32_t const h = this->Height(level);
uint32_t const d = this->Depth(level);
if (IsCompressedFormat(format_))
{
uint32_t const block_size = NumFormatBytes(format_) * 4;
GLsizei const image_size = ((w + 3) / 4) * ((h + 3) / 4) * d * block_size;
void* ptr;
if (nullptr == init_data)
{
tex_data_[level].resize(image_size, 0);
ptr = nullptr;
}
else
{
tex_data_[level].resize(image_size);
std::memcpy(&tex_data_[level][0], init_data[level].data, image_size);
ptr = &tex_data_[level][0];
}
if (glloader_GLES_VERSION_3_0())
{
glCompressedTexImage3D(target_type_, level, glinternalFormat,
w, h, d, 0, image_size, ptr);
}
else
{
glCompressedTexImage3DOES(target_type_, level, glinternalFormat,
w, h, d, 0, image_size, ptr);
}
}
else
{
GLsizei const image_size = w * h * d * texel_size;
void* ptr;
if (nullptr == init_data)
{
tex_data_[level].resize(image_size, 0);
ptr = nullptr;
}
else
{
tex_data_[level].resize(image_size);
std::memcpy(&tex_data_[level][0], init_data[level].data, image_size);
ptr = &tex_data_[level][0];
}
if (glloader_GLES_VERSION_3_0())
{
glTexImage3D(target_type_, level, glinternalFormat, w, h, d, 0, glformat, gltype, ptr);
}
else
{
glTexImage3DOES(target_type_, level, glinternalFormat, w, h, d, 0, glformat, gltype, ptr);
}
}
}
hw_res_ready_ = true;
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengles_OESTexture3D_nglCompressedTexImage3DOES(JNIEnv *__env, jclass clazz, jint target, jint level, jint internalformat, jint width, jint height, jint depth, jint border, jint imageSize, jlong dataAddress) {
glCompressedTexImage3DOESPROC glCompressedTexImage3DOES = (glCompressedTexImage3DOESPROC)tlsGetFunction(782);
intptr_t data = (intptr_t)dataAddress;
UNUSED_PARAM(clazz)
glCompressedTexImage3DOES(target, level, internalformat, width, height, depth, border, imageSize, data);
}