JNIEXPORT void JNICALL Java_org_lwjgl_opengl_ARBTextureCompression_nglCompressedTexSubImage2DARBBO(JNIEnv *env, jclass clazz, jint target, jint level, jint xoffset, jint yoffset, jint width, jint height, jint format, jint imageSize, jlong pData_buffer_offset, jlong function_pointer) {
const GLvoid *pData_address = (const GLvoid *)(intptr_t)offsetToPointer(pData_buffer_offset);
glCompressedTexSubImage2DARBPROC glCompressedTexSubImage2DARB = (glCompressedTexSubImage2DARBPROC)((intptr_t)function_pointer);
glCompressedTexSubImage2DARB(target, level, xoffset, yoffset, width, height, format, imageSize, pData_address);
}
void DiGLTextureDrv::Upload(const DiPixelBox &src, const DiBox &dst, uint32 level, uint32 surface)
{
glBindTexture(mGLTextureType, mTextureID);
DiPixelFormat fmt = mParent->GetFormat();
bool isCompressed = DiPixelBox::IsCompressedFormat(fmt);
unsigned dataType = DiGLTypeMappings::GetDataType(mGLFormat);
GLenum faceType = GL_TEXTURE_2D;
if (mGLTextureType == GL_TEXTURE_CUBE_MAP)
faceType = GL_TEXTURE_CUBE_MAP_POSITIVE_X + surface;
if (isCompressed)
{
if (!src.IsConsecutive())
{
DI_WARNING("Compressed images should be consective.");
return;
}
size_t size = src.GetConsecutiveSize();
switch (mGLTextureType)
{
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
if (dst.left == 0 && dst.top == 0)
{
glCompressedTexImage2DARB(faceType, level,
mGLFormat,
dst.GetWidth(),
dst.GetHeight(),
0,
size,
src.data);
}
else
{
glCompressedTexSubImage2DARB(faceType, level,
dst.left, dst.top,
dst.GetWidth(), dst.GetHeight(),
mGLFormat, size,
src.data);
}
break;
}
}
else
{
if (src.GetWidth() != src.rowPitch)
glPixelStorei(GL_UNPACK_ROW_LENGTH, src.rowPitch);
if (src.GetWidth() > 0 && src.GetHeight()*src.GetWidth() != src.slicePitch)
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, (src.slicePitch / src.GetWidth()));
if (src.left > 0 || src.top > 0)
glPixelStorei(GL_UNPACK_SKIP_PIXELS, src.left + src.rowPitch * src.top);
if ((src.GetWidth() * DiPixelBox::GetNumElemBytes(src.format)) & 3)
{
// Standard alignment of 4 is not right
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
}
glGetError();
switch (mGLTextureType)
{
case GL_TEXTURE_2D:
case GL_TEXTURE_CUBE_MAP:
if (dst.left == 0 && dst.top == 0)
{
glTexImage2D(faceType, level, mGLFormat, dst.GetWidth(), dst.GetHeight(),
0, mGLOriginFormat, dataType, src.data);
}
else
{
glTexSubImage2D(faceType, level,
dst.left, dst.top,
dst.GetWidth(), dst.GetHeight(),
mGLOriginFormat, dataType, src.data);
}
break;
}
GLenum glErr = glGetError();
if (glErr != GL_NO_ERROR)
DI_WARNING("Uploading texture (surface %d, level %d): %s", surface, level, (const char*)gluErrorString(glErr));
}
// restore
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
if (GLEW_VERSION_1_2)
glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
}