// Returns true if the texture was found and bound;
// returns false otherwise.
bool MTextureCache::bind(MObject textureObj,
MTexture::Type type /* = MTexture::RGBA */,
bool mipmapped /* = true */,
GLenum target /* = GL_TEXTURE_2D */)
{
// Get a reference to the texture, allocating it if necessary.
MTexture* pTex = texture(textureObj, type, mipmapped, target);
if (pTex)
{
// bind the texture.
pTex->bind();
return true;
}
return false;
}
/**
* GPUにアップロードを行う
*/
bool upload(MTexture tex, MDeviceContext context) {
assert(tex);
if (!valid()) {
return false;
}
MShaderState state = context->getShaderState();
int texUnit = -1;
// バインドされていなければ、テクスチャをバインドする
if (!tex->isBinded(&texUnit, state)) {
texUnit = tex->bind(context);
}
if (bindUnit != texUnit) {
glUniform1i(location, texUnit);
assert_gl();
bindUnit = texUnit;
return true;
}
return false;
}