void BL_Texture::InitGLCompressedTex(ImBuf *ibuf, bool mipmap)
{
#ifndef WITH_DDS
// Fall back to uncompressed if DDS isn't enabled
InitGLTex(ibuf->rect, ibuf->x, ibuf->y, mipmap);
return;
#else
glBindTexture(GL_TEXTURE_2D, mTexture);
if (GPU_upload_dxt_texture(ibuf) == 0) {
InitGLTex(ibuf->rect, ibuf->x, ibuf->y, mipmap);
return;
}
#endif
}
bool BL_Texture::InitFromImage(int unit, Image *img, bool mipmap)
{
ImBuf *ibuf;
if (!img || img->ok==0)
{
mOk = false;
return mOk;
}
ibuf= BKE_image_get_ibuf(img, NULL);
if (ibuf==NULL)
{
img->ok = 0;
mOk = false;
return mOk;
}
mTexture = img->bindcode;
mType = GL_TEXTURE_2D;
mUnit = unit;
ActivateUnit(mUnit);
if (mTexture != 0) {
glBindTexture(GL_TEXTURE_2D, mTexture );
Validate();
return mOk;
}
// look for an existing gl image
BL_TextureMap::iterator mapLook = g_textureManager.find(img->id.name);
if (mapLook != g_textureManager.end())
{
if (mapLook->second.gl_texture != 0)
{
mTexture = mapLook->second.gl_texture;
glBindTexture(GL_TEXTURE_2D, mTexture);
mOk = IsValid();
return mOk;
}
}
mNeedsDeleted = 1;
glGenTextures(1, (GLuint*)&mTexture);
InitGLTex(ibuf->rect, ibuf->x, ibuf->y, mipmap);
// track created units
BL_TextureObject obj;
obj.gl_texture = mTexture;
obj.ref_buffer = img;
g_textureManager.insert(std::pair<char*, BL_TextureObject>((char*)img->id.name, obj));
glDisable(GL_TEXTURE_2D);
ActivateUnit(0);
Validate();
return mOk;
}