void MipMapGenerator::generateMipMapDesktop (gdx_cpp::graphics::Pixmap::ptr pixmap,int textureWidth,int textureHeight,bool disposePixmap) {
if (Gdx::graphics->isGL20Available()
&& (Gdx::graphics->supportsExtension("GL_ARB_framebuffer_object") || Gdx::graphics
->supportsExtension("GL_EXT_framebuffer_object"))) {
Gdx::gl->glTexImage2D(GL_TEXTURE_2D, 0, pixmap->getGLInternalFormat(), pixmap->getWidth(), pixmap->getHeight(), 0,
pixmap->getGLFormat(), pixmap->getGLType(), pixmap->getPixels());
Gdx::gl20->glGenerateMipmap(GL_TEXTURE_2D);
if (disposePixmap) pixmap->dispose();
} else if (Gdx::graphics->supportsExtension("GL_SGIS_generate_mipmap")) {
if ((Gdx::gl20 == NULL) && textureWidth != textureHeight) {
throw std::runtime_error("texture width and height must be square when using mipmapping in OpenGL ES 1.x");
}
Gdx::gl->glTexParameterf(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
Gdx::gl->glTexImage2D(GL_TEXTURE_2D, 0, pixmap->getGLInternalFormat(), pixmap->getWidth(), pixmap->getHeight(), 0,
pixmap->getGLFormat(), pixmap->getGLType(), pixmap->getPixels());
if (disposePixmap) pixmap->dispose();
} else {
generateMipMapCPU(pixmap, textureWidth, textureHeight, disposePixmap);
}
}
void MipMapGenerator::generateMipMapGLES20 (gdx_cpp::graphics::Pixmap::ptr pixmap,bool disposePixmap) {
Gdx::gl->glTexImage2D(GL_TEXTURE_2D, 0, pixmap->getGLInternalFormat(), pixmap->getWidth(), pixmap->getHeight(), 0,
pixmap->getGLFormat(), pixmap->getGLType(), pixmap->getPixels());
Gdx::gl20->glGenerateMipmap(GL_TEXTURE_2D);
if (disposePixmap) pixmap->dispose();
}